Patent Publication Number: US-2023160520-A1

Title: Angle adjustment apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of International Application No. PCT/CN2021/095319, filed on May 21, 2021, which claims priority to Chinese Patent Application No. 202010678420.0, filed on Jul. 15, 2020. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. 
    
    
     TECHNICAL FIELD 
     Embodiments of this application relate to the field of mechanical assembly technologies, and in particular, to an angle adjustment apparatus. 
     BACKGROUND 
     With continuous development of science and technologies, a large quantity of communications devices (such as a wireless communications remote-control transmit unit, a base station, and an antenna) all need to be fastened to various mounting environments by using brackets. Due to a function requirement such as signal coverage, some devices further have a requirement that an oblique angle and a horizontal rotation angle can be adjusted. In view of this, a current common solution is fastening a communications device to a mounting carrier (such as a pole or a wall) by using a mounting mechanism that can implement angle adjustment, and then implementing mounting of the communications device at different angles by using an angle adjustment function of the mounting mechanism. 
     In the conventional technology, a mounting mechanism used for device mounting usually includes a fastener, an intermediate member, and a device fastener. The fastener is configured to fasten a multi-functional mounting bracket. The intermediate member is configured to adjust a device mounting direction. The device fastener is configured to fasten a device. The intermediate member is connected to the fastener by using a horizontal adjustment mechanism or a vertical adjustment mechanism, and the device fastener is connected to the intermediate member by using a vertical adjustment mechanism or a horizontal adjustment mechanism, so that the mounting mechanism used for device mounting can support angle adjustment positioning in both a horizontal direction and a vertical direction. 
     However, angle adjustment efficiency of the mounting mechanism is low, and the device is prone to be oblique after angle adjustment, affecting a signal coverage function of the device. 
     SUMMARY 
     This application provides an angle adjustment apparatus, to improve angle adjustment efficiency, and also prevent a device from being oblique after angle adjustment, thereby preventing a signal coverage function of the device from being affected. 
     This application provides an angle adjustment apparatus, including a fastening component and an angle adjustment component rotatably connected to the fastening component. 
     At least a part of the angle adjustment component is located in the fastening component, and the angle adjustment component can rotate in a horizontal direction and a vertical direction relative to the fastening component. 
     According to the angle adjustment apparatus provided in an embodiment of the application, at least the part of the angle adjustment component is located in the fastening component, and the angle adjustment component can rotate in the horizontal direction and the vertical direction relative to the fastening component, so that an angle adjustment function in the horizontal direction and an angle adjustment function in the vertical direction are integrated into a same component. In this way, the angle adjustment apparatus greatly improves angle adjustment efficiency. In addition, because a rotation axis in the horizontal direction and a rotation axis in the vertical direction of the angle adjustment apparatus are located on a same plane, a device can be prevented from being oblique after angle adjustment, thereby preventing a signal coverage function of the device from being affected. Furthermore, a distance that is from the device to a wall or a pole and that is obtained after mounting can be greatly reduced, thereby greatly improving device mounting convenience and beauty obtained after the mounting, and supporting fast mounting and deployment of the communications device. Therefore, the angle adjustment apparatus provided in an embodiment of the application can improve angle adjustment efficiency, and also prevent a device from being oblique after angle adjustment, thereby preventing a signal coverage function of the device from being affected. 
     In an embodiment, the fastening component includes a first fastener and a second fastener. The first fastener has a first groove body, the second fastener has a second groove body, and at least the part of the angle adjustment component is located in an accommodation cavity formed by the first groove body and the second groove body. 
     At least the part of the angle adjustment component is located in the accommodation cavity formed by the first groove body of the first fastener and the second groove body of the second fastener, so that an angle adjustment function in the horizontal direction and an angle adjustment function in the vertical direction can be integrated into a same component. In this way, angle adjustment efficiency is greatly improved. 
     In an embodiment, the angle adjustment component includes a support member and a rotation member fixedly connected to the support member. The rotation member is located in the accommodation cavity, and the rotation member can rotate in the horizontal direction relative to the first fastener and the second fastener. 
     The rotation member of the angle adjustment component is located in the accommodation cavity formed by the first groove body of the first fastener and the second groove body of the second fastener, so that an angle adjustment function in the horizontal direction and an angle adjustment function in the vertical direction can be integrated into a same component. In this way, angle adjustment efficiency is greatly improved. 
     In an embodiment, the first groove body includes a first rotation groove and first chutes located on two sides of the first rotation groove, and the second groove body includes a second rotation groove and second chutes located on two sides of the second rotation groove. The rotation member includes a rotation part and linkage parts located on two sides of the rotation part. The rotation part is located in a first accommodation cavity formed by the first rotation groove and the second rotation groove, and the linkage parts are located in second accommodation cavities formed by the first chutes and the second chutes. 
     In this way, the rotation part is located in the first accommodation cavity formed by the first rotation groove and the second rotation groove, and the linkage parts are located in the second accommodation cavities formed by the first chutes and the second chutes. The first chutes and the second chutes can limit moving ranges of the linkage parts, to limit a rotation range of the angle adjustment component in the horizontal direction relative to the fastening component. 
     In an embodiment, the angle adjustment apparatus further includes a positioning member. The rotation part has a first through hole extending in a length direction of the positioning member, and an inner wall of the first through hole has an oblique arc surface. The positioning member is located in the first through hole, and when the rotation member rotates in the vertical direction relative to the positioning member, the oblique arc surface is used to limit a rotation range of the rotation member. 
     The positioning member is disposed, so that a pressure change of a contact surface can be implemented, thereby affecting contact friction, to implement immediate positioning and locking in an angle adjustment process. 
     In an embodiment, the rotation part is of a spherical structure. The rotation part can implement fusion of horizontal and vertical bidirectional angle adjustment axes. 
     In an embodiment, the support member includes a support plate and ring arms fixedly connected to two sides of the support plate. The ring arms are connected to the linkage parts in the rotation member. 
     After the rotation member of the angle adjustment component is embedded in the first groove body of the first fastener and the second groove body of the second fastener in the fastening component, the ring arms surround the periphery of the first fastener and the second fastener, so that rotation flexibility of the angle adjustment component relative to the fastening component can be ensured when the angle adjustment apparatus experiences an abnormal scenario such as severe impact and tearing. 
     In an embodiment, the first fastener includes a first fastening part and a first connection part, at least one first mounting hole is disposed in the first fastening part, there is a concave part on a side that is of the first fastening part and that faces away from the first connection part, and the concave part has a toothed structure. The second fastener includes a second fastening part and a second connection part, at least one second mounting hole is disposed in the second fastening part, there is a concave part on a side that is of the second fastening part and that faces away from the second connection part, and the concave part has a toothed structure. The first groove body is located on the first connection part, and the second groove body is located on the second connection part. 
     In this way, the first mounting hole and the second mounting hole can fasten the fastening component (the first fastener and the second fastener) to a plane such as a wall, to cooperate with a steel belt, a hose clamp, an expansion bolt, or the like to implement reliable mounting of pole holding and wall hanging. The concave parts can further ensure stability of fastening of the fastening component to a pole-shaped fastening apparatus, and increase a contact area between the fastening component and the pole-shaped fastening apparatus. The toothed structures can increase contact friction between the fastening component and the pole-shaped fastening apparatus. 
     In an embodiment, a second through hole through which the positioning member can be penetrated is disposed on each of a groove bottom of the first rotation groove and a groove bottom of the second rotation groove. 
     In this way, the positioning member may be sequentially penetrated through a second through hole located in the first fastener, the first through hole located in the angle adjustment component, and a second through hole located in the second fastener, to implement fastening and connection between the fastening component and the angle adjustment component. 
     In an embodiment, the first fastener further includes a first transition part located between the first fastening part and the first connection part, and a first step is formed between the first transition part and the first connection part. The second fastener further includes a second transition part located between the second fastening part and the second connection part, and a second step is formed between the second transition part and the second connection part. 
     The first step is formed between the first transition part and the first connection part of the first fastener, and the second step is formed between the second transition part and the second connection part of the second fastener. Therefore, when the first fastener and the second fastener are assembled into the fastening component, the first transition part fits with the second transition part, and a gap is formed between the first connection part and the second connection part. The gap can reserve adjustment space for accommodating the rotation member in the accommodation cavity formed by the first groove body and the second groove body, to improve matchability and versatility during mounting of the fastening component to the angle adjustment component. In addition, disposition of step positions (the first step and the second step) can further improve a spherical hinge holding force obtained after assembly. 
     In an embodiment, at least one third through hole is disposed in each of the first transition part and the second transition part, and at least one fourth through hole is disposed on each of one end that is of the first connection part and that is away from the first transition part and one end that is of the second connection part and that is away from the second transition part. 
     In this way, the first fastener and the second fastener may be pre-fastened by penetrating a first stud through a third through hole in the first transition part and a third through hole in the second transition part; or the first fastener and the second fastener may be pre-fastened by penetrating a second stud through a fourth through hole on the end that is of the first connection part and that is away from the first transition part and a fourth through hole on the end that is of the second connection part and that is away from the second transition part. 
     In an embodiment, at least one convex point is disposed on one of the first transition part and the second transition part, at least one concave hole is disposed on the other of the first transition part and the second transition part, and the convex point is cooperatively connected to the concave hole; or at least one convex point and at least one concave hole are disposed on one of the first transition part and the second transition part, and at least one concave hole and at least one convex point are disposed on the other of the first transition part and the second transition part. A convex point on the first transition part is cooperatively connected to a concave hole on the second transition part, and a concave hole on the first transition part is cooperatively connected to a convex point on the second transition part. 
     The convex point is in a one-to-one correspondence with and cooperatively connected to the concave hole, so that accurate positioning during mounting of the first fastener to the second fastener can be further ensured. 
     In an embodiment, a horizontal adjustment angle scale identifier is disposed at a position at which an outer edge of the first connection part is close to the linkage part or at a position at which an outer edge of the second connection part is close to the linkage part. A vertical adjustment angle scale identifier is disposed at a position at which the linkage part of the rotation member is exposed from the first connection part or the second connection part. 
     In this way, when the angle adjustment component is rotated in the horizontal direction relative to the fastening component, the horizontal adjustment angle scale identifier may be used to display a rotation angle of the angle adjustment component in the horizontal direction relative to the fastening component, to indicate a magnitude of an adjustment angle in the horizontal direction. When the angle adjustment component is rotated in the vertical direction relative to the fastening component, the vertical adjustment angle scale identifier may be used to display a rotation angle of the angle adjustment component in the vertical direction relative to the fastening component, to indicate a magnitude of an adjustment angle in the vertical direction. In addition, in an angle adjustment process, an angle adjustment position in the horizontal direction and an angle adjustment position in the vertical direction can be determined at one time based on a scale at a position at which the first connection part is closest to the linkage part or based on a scale at a position at which the second connection part is closest to the linkage part. 
     In an embodiment, the angle adjustment apparatus further includes an adapter component. The adapter component is located on a side that is of the angle adjustment component and that is away from the fastening component, and the adapter component is detachably connected to the angle adjustment component. 
     In an embodiment, the adapter component is connected to the angle adjustment component by using a dovetail structure. The dovetail structure includes a male dovetail and a female dovetail, where one of the male dovetail and the female dovetail is disposed on the adapter component, and the other of the male dovetail and the female dovetail is disposed on the angle adjustment component. The male dovetail is cooperatively connected to the female dovetail. 
     Fast deployment mounting and locking of the adapter component to the angle adjustment component can be implemented by disposing the dovetail structure. 
     In an embodiment, the adapter component includes an adapter board. The male dovetail or the female dovetail is disposed on a side that is of the adapter board and that faces the angle adjustment component. A handle and a mounting interface used to connect to an external device are further disposed on the adapter board. 
     Disposition of the handle can facilitate holding and lifting of an operator for the adapter board, and the mounting interface is disposed to correspond to a side interface of the external device, to implement fast mounting connection between the adapter board and the external device. 
     With reference to the accompanying drawings, these and other aspects, implementations, and advantages of example embodiments become apparent from embodiments described below. However, it should be understood that the specification and the accompanying drawings are merely intended to illustrate embodiments of this application and are not intended to be defined as limitations on embodiments of this application. For details, refer to the appended claims. Other aspects and advantages of embodiments of this application are set forth in the following descriptions and are partially apparent from the descriptions, or are learned from practice of embodiments of this application. In addition, aspects and advantages of embodiments of this application may be implemented and obtained by using means and combinations noted in the appended claims. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a schematic diagram of a first structure of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  2    is a side view of the angle adjustment apparatus shown in  FIG.  1   ; 
         FIG.  3    is a schematic diagram of a first structure of a fastening component of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  4    is a schematic diagram of a structure of an angle adjustment component of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  5    is a schematic diagram of a second structure of a fastening component of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  6    is a schematic diagram of a third structure of a fastening component of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  7    is a schematic diagram of a first structure in which a fastening component and an angle adjustment component of an angle adjustment apparatus are in a connected state according to an embodiment of this application; 
         FIG.  8    is a schematic diagram of a second structure in which a fastening component and an angle adjustment component of an angle adjustment apparatus are in a connected state according to an embodiment of this application; 
         FIG.  9    is a schematic diagram of a third structure in which a fastening component and an angle adjustment component of an angle adjustment apparatus are in a connected state according to an embodiment of this application; 
         FIG.  10    is a schematic diagram of a fourth structure in which a fastening component and an angle adjustment component of an angle adjustment apparatus are in a connected state according to an embodiment of this application; 
         FIG.  11    is a schematic diagram of a second structure of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  12    is a schematic diagram of a third structure of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  13    is a schematic enlarged diagram of a part of the angle adjustment apparatus shown in  FIG.  12   ; 
         FIG.  14    is a schematic diagram of a fourth structure of an angle adjustment apparatus according to an embodiment of this application; 
         FIG.  15    is a schematic diagram of a fifth structure of an angle adjustment apparatus according to an embodiment of this application; and 
         FIG.  16    is a schematic diagram of a structure of an adapter component of an angle adjustment apparatus according to an embodiment of this application. 
     
    
    
     DESCRIPTION OF REFERENCE SIGNS 
       100 —Angle adjustment apparatus;  10 —Fastening component;  11 —First fastener;  111 —First groove body;  1111 —First rotation groove;  1112 —First chute;  1113 —Second through hole;  112 —First fastening part;  1121 —First mounting hole;  1122 —Concave part;  1123 —Toothed structure;  113 —First connection part;  1131 —Fourth through hole;  1132 —Horizontal adjustment angle scale identifier;  114 —First transition part;  1141 —Third through hole;  1142 —Convex point;  1143 —Concave hole;  115 —First step;  12 —Second fastener;  121 —Second groove body;  1211 —Second rotation groove;  1212 —Second chute;  122 —Second fastening part;  1221 —Second mounting hole;  123 —Second connection part;  124 —Second transition part;  125 —Second step;  20 —Angle adjustment component;  21 —Support member;  211 —Support plate;  212 —Ring arm;  22 —Rotation member;  221 —Rotation part;  2211 —First through hole;  2212 —Oblique arc surface;  222 —Linkage part;  2221 —Vertical adjustment angle scale identifier;  201 —Male dovetail;  30 —Positioning member;  40 —Adapter component;  41 —Adapter board;  411 —Handle;  412 —Mounting interface;  401 —Female dovetail;  50 —First stud;  60 —Second stud. 
     DESCRIPTION OF EMBODIMENTS 
     The terms used in the implementations of this application are merely used to explain embodiments of this application, and are not intended to limit this application. The following describes the implementations of embodiments of this application in detail with reference to the accompanying drawings. 
     Currently, due to a function requirement such as signal coverage, an azimuth (a rotation angle in a horizontal direction) and a downtilt (an oblique angle in a vertical direction) need to be adjusted for mounting of some communications devices. In the conventional technology, a communications device is usually fastened to a mounting carrier by using a mounting mechanism that can implement angle adjustment (the mounting carrier is compatible with two mounting environments: wall hanging and pole holding), and then mounting of the communications device at different angles is implemented by using an angle adjustment function of the mounting mechanism. The mounting mechanism includes: a fastener configured to fasten a multi-functional mounting bracket, an intermediate member configured to adjust a device mounting direction, and a device fastener configured to fasten the device. The intermediate member is connected to the fastener by using a horizontal adjustment mechanism or a vertical adjustment mechanism, and the device fastener is connected to the intermediate member by using a vertical adjustment mechanism or a horizontal adjustment mechanism. In an embodiment, when the intermediate member is connected to the fastener by using a horizontal adjustment mechanism, the device fastener is connected to the intermediate member by using a vertical adjustment mechanism; or when the intermediate member is connected to the fastener by using a vertical adjustment mechanism, the device fastener is connected to the intermediate member by using a horizontal adjustment mechanism, so that the mounting mechanism can support angle adjustment positioning in both a horizontal direction and a vertical direction. 
     However, in the foregoing mounting mechanism, when both the horizontal direction and the vertical direction have angle adjustment requirements, angle adjustment in the horizontal direction needs to be first performed, and then a horizontal adjustment mechanism needs to be locked; and then angle adjustment in the vertical direction needs to be performed, and then a vertical adjustment mechanism needs to be locked. Alternatively, angle adjustment in the vertical direction needs to be first performed, and then a vertical adjustment mechanism needs to be locked; and then angle adjustment in the horizontal direction needs to be performed, and then a horizontal adjustment mechanism needs to be locked. Because the horizontal adjustment mechanism and the vertical adjustment mechanism are independently controlled, angle adjustment efficiency of the mounting mechanism is low. In addition, because a rotation axis of the horizontal adjustment mechanism and a rotation axis of the vertical adjustment mechanism are not located on one plane, the device is prone to be oblique after the mounting mechanism performs angle adjustment, affecting a signal coverage function of the device. 
     Based on this, embodiments of this application provide an angle adjustment apparatus, to implement a horizontal and vertical omnidirectional angle adjustment requirement, to support device mounting and fastening and an angle adjustment operation performed after the mounting. An angle adjustment function in a horizontal direction and an angle adjustment function in a vertical direction are integrated into a same component, that is, an angle adjustment component can rotate in both the horizontal direction and the vertical direction relative to a fastening component, so that the angle adjustment apparatus greatly improves angle adjustment efficiency. In addition, because a rotation axis in the horizontal direction and a rotation axis in the vertical direction of the angle adjustment apparatus are located on a same plane, a device can be prevented from being oblique after angle adjustment, thereby preventing a signal coverage function of the device from being affected. Furthermore, a distance that is from the device to a wall or a pole and that is obtained after mounting can be greatly reduced, thereby greatly improving device mounting convenience and beauty obtained after the mounting, and supporting fast mounting and deployment of the communications device. 
     Referring to  FIG.  1    and  FIG.  2   , an angle adjustment apparatus  100  provided in an embodiment of this application may include a fastening component  10  and an angle adjustment component  20  rotatably connected to the fastening component  10 . At least a part of the angle adjustment component  20  is located in the fastening component  10 , and the angle adjustment component  20  can rotate in a horizontal direction and a vertical direction relative to the fastening component  10 . 
     As shown in  FIG.  3   , the fastening component  10  may include a first fastener  11  and a second fastener  12 . In addition, the first fastener  11  may have a first groove body  111 , the second fastener  12  may have a second groove body  121 , and at least the part of the angle adjustment component  20  is located in an accommodation cavity formed by the first groove body  111  and the second groove body  121  through enclosing. 
     Still referring to  FIG.  3   , the first groove body  111  may include a first rotation groove  1111  and first chutes  1112  located on two sides of the first rotation groove  1111 , and the second groove body  121  may include a second rotation groove  1211  and second chutes  1212  located on two sides of the second rotation groove  1211 . A first accommodation cavity may be formed by the first rotation groove  1111  and the second rotation groove  1211  through enclosing, and second accommodation cavities may be formed by the first chutes  1112  and the second chutes  1212  through enclosing. 
     As shown in  FIG.  4   , the angle adjustment component  20  may include a support member  21  and a rotation member  22  fixedly connected to the support member  21 . The rotation member  22  is located in the accommodation cavity formed by the first groove body  111  and the second groove body  121  through enclosing, and the rotation member  22  can rotate in the horizontal direction relative to the first fastener  11  and the second fastener  12 . 
     In an embodiment, the rotation member  22  may include a rotation part  221  and linkage parts  222  located on two sides of the rotation part  221 . The rotation part  221  is located in the first accommodation cavity formed by the first rotation groove  1111  and the second rotation groove  1211 , and the linkage parts  222  are located in the second accommodation cavities formed by the first chutes  1112  and the second chutes  1212 . 
     In an embodiment of the application, the angle adjustment apparatus  100  may further include a positioning member  30 . As shown in  FIG.  4   , the rotation part  221  may have a first through hole  2211  extending in a length direction of the positioning member  30 , and an inner wall of the first through hole  2211  may have an oblique arc surface  2212 . The positioning member  30  is located in the first through hole  2211 , and when the rotation member  22  rotates in the vertical direction relative to the positioning member  30 , the oblique arc surface  2212  is used to limit a rotation range of the rotation member  22 . The positioning member  30  is disposed, so that a pressure change of a contact surface can be implemented, thereby affecting contact friction, to implement immediate positioning and locking in an angle adjustment process. 
     In an embodiment, the rotation part  221  may be of a spherical structure. The rotation part  221  can implement fusion of horizontal and vertical bidirectional angle adjustment axes. 
     Still referring to  FIG.  4   , the support member  21  may include a support plate  211  and ring arms  212  fixedly connected to two sides of the support plate  211 . The ring arms  212  are fixedly connected to the linkage parts  222  in the rotation member  22 . After the rotation member  22  of the angle adjustment component  20  is embedded in the accommodation cavity formed by the first groove body  111  of the first fastener  11  and the second groove body  121  of the second fastener  12  in the fastening component  10 , the ring arms  212  surround the periphery of the first fastener  11  and the second fastener  12 , so that rotation flexibility of the angle adjustment component  20  relative to the fastening component  10  can be ensured when the angle adjustment apparatus  100  experiences an abnormal scenario such as severe impact and tearing. 
     In an embodiment of the application, as shown in  FIG.  5   , the first fastener  11  may include a first fastening part  112  and a first connection part  113 , and at least one first mounting hole  1121  may be disposed in the first fastening part  112 . Likewise, the second fastener  12  may include a second fastening part  122  and a second connection part  123 , and at least one second mounting hole  1221  may be disposed in the second fastening part  122 . 
     It should be noted that the fastening component  10  (the first fastener  11  and the second fastener  12 ) can be fastened to a plane such as a wall by using the first mounting hole  1121  and the second mounting hole  1221 , to cooperate with a steel belt, a hose clamp, an expansion bolt, or the like to implement reliable mounting of pole holding and wall hanging. For example, in an embodiment of the application, the fastening component  10  may be fastened to a predetermined mounting position by penetrating a hose clamp through the first mounting hole  1121  disposed in the first fastening part  112  and the second mounting hole  1221  disposed in the second fastening part  122 . For example, the fastening component  10  may be fastened to various pole-shaped fastening apparatuses by using a hose clamp, and fastening to pole-shaped fastening apparatuses of various sizes and diameters may be implemented in cooperation with hose clamps of different lengths. 
     In addition, to further ensure stability of fastening to the pole-shaped fastening apparatus, a contact area between the fastening component  10  and the pole-shaped fastening apparatus is increased, and contact friction between the fastening component  10  and the pole-shaped fastening apparatus is increased. There may be a concave part  1122  on a side that is of the first fastening part  112  and that faces away from the first connection part  113 , and the concave part  1122  has a toothed structure  1123 . There may also be a concave part  1122  on a side that is of the second fastening part  122  and that faces away from the second connection part  123 , and the concave part  1122  may have a toothed structure  1123 . 
     It should be noted that the angle adjustment apparatus  100  provided in an embodiment of the application can support angle adjustment positioning in both the horizontal direction and the vertical direction, and is also compatible with two mounting environments: wall hanging and pole holding. 
     It may be understood that, to further ensure stability of a device mounted to the angle adjustment apparatus  100  used for device mounting, the first fastener  11  and the second fastener  12  in the fastening component  10  in an embodiment of the application may be symmetrical structures. 
     In an embodiment of the application, as shown in  FIG.  3   , the first groove body  111  is located in the first connection part  113 , the second groove body  121  is located in the second connection part  123 , and a second through hole  1113  through which the positioning member  30  can be penetrated may be disposed on each of a groove bottom of the first rotation groove  1111  and a groove bottom of the second rotation groove  1211 . In this way, the positioning member  30  may be sequentially penetrated through a second through hole  1113  located in the first fastener  11 , the first through hole  2211  located in the angle adjustment component  20 , and a second through hole  1113  located in the second fastener  12 , to implement fastening and connection between the fastening component  10  and the angle adjustment component  20 . 
     In an embodiment, still referring to  FIG.  3   , the first fastener  11  may further include a first transition part  114  located between the first fastening part  112  and the first connection part  113 , and a first step  115  may be formed between the first transition part  114  and the first connection part  113 . Likewise, the second fastener  12  may further include a second transition part  124  located between the second fastening part  122  and the second connection part  123 , and a second step  125  is formed between the second transition part  124  and the second connection part  123 . 
     The first step  115  is formed between the first transition part  114  and the first connection part  113  of the first fastener  11 , and the second step  125  is formed between the second transition part  124  and the second connection part  123  of the second fastener  12 . Therefore, when the first fastener  11  and the second fastener  12  are assembled into the fastening component  10 , the first transition part  114  fits with the second transition part  124 , and a gap is formed between the first connection part  113  and the second connection part  123 . The gap can reserve adjustment space for accommodating the rotation member  22  in the accommodation cavity formed by the first groove body  111  and the second groove body  121 , to improve matchability and versatility during mounting of the fastening component  10  to the angle adjustment component  20 . In addition, disposition of step positions (the first step  115  and the second step  125 ) can further improve a spherical hinge holding force obtained after assembly. 
     In an embodiment of the application, as shown in  FIG.  5   , at least one third through hole  1141  may be disposed in each of the first transition part  114  and the second transition part  124 , and at least one fourth through hole  1131  may be further disposed on each of one end that is of the first connection part  113  and that is away from the first transition part  114  and one end that is of the second connection part  123  and that is away from the second transition part  124 . 
     In this way, the first fastener  11  and the second fastener  12  may be pre-fastened by penetrating a first stud  50  (shown in  FIG.  11   ) through a third through hole  1141  in the first transition part  114  and a third through hole  1141  in the second transition part  124 ; the first fastener  11  and the second fastener  12  may be pre-fastened by penetrating a second stud  60  (shown in  FIG.  11   ) through a fourth through hole  1131  on the end that is of the first connection part  113  and that is away from the first transition part  114  and a fourth through hole  1131  on the end that is of the second connection part  123  and that is away from the second transition part  124 ; or the first fastener  11  and the second fastener  12  may be pre-fastened by penetrating the first stud  50  through the third through hole  1141  in the first transition part  114  and the third through hole  1141  in the second transition part  124  and also penetrating the second stud  60  through the fourth through hole  1131  on the end that is of the first connection part  113  and that is away from the first transition part  114  and the fourth through hole  1131  on the end that is of the second connection part  123  and that is away from the second transition part  124 . 
     In addition, in a production assembly process, tightening torque of the first stud  50  and the second stud  60  may be controlled to control constraint forces of the first fastener  11  and the second fastener  12  for the rotation part  221  of the rotation member  22  in the angle adjustment component  20 , to implement continuous positioning in an angle adjustment process under a weight carrying condition. 
     To further ensure accurate positioning during mounting of the first fastener  11  to the second fastener  12 , at least one convex point  1142  may be disposed on one of the first transition part  114  and the second transition part  124 , and at least one concave hole  1143  may be disposed on the other of the first transition part  114  and the second transition part  124 . The convex point  1142  is in a one-to-one correspondence with and cooperatively connected to the concave hole  1143 . 
     In an embodiment of the application, a disposition manner of the convex point  1142  and the concave hole  1143  includes but is not limited to the following two possible implementations: 
     An embodiment is as follows: Referring to  FIG.  3   , at least one convex point  1142  is disposed on the first transition part  114 , and at least one concave hole  1143  is disposed on the second transition part  124 . 
     An embodiment is as follows: At least one convex point  1142  is disposed on the second transition part  124 , and at least one concave hole  1143  is disposed on the first transition part  114 . 
     It should be noted that shapes and quantities of convex points  1142  and concave holes  1143  are not limited in an embodiment of the application, provided that an accurate positioning effect can be implemented. In an embodiment, as shown in  FIG.  3   , there may be two convex points  1142  on the first transition part  114 , there may be two concave holes  1143  on the second transition part  124 , and the convex points  1142  are in a one-to-one correspondence with and cooperatively connected to the concave holes  1143 . 
     In an embodiment of the application, when the first fastener  11  and the second fastener  12  are actually mounted, as shown in  FIG.  6   , the convex points  1142  are correspondingly mounted to the concave holes  1143 , and then the first stud  50  is penetrated through the third through hole  1141  in the first fastener  11  and the third through hole  1141  in the second fastener  12 , thereby implementing pre-mounting of the first fastener  11  and the second fastener  12 . 
     Certainly, in some other embodiments, at least one convex point  1142  and at least one concave hole  1143  may be disposed on one of the first transition part  114  and the second transition part  124 , and at least one concave hole  1143  and at least one convex point  1142  may be disposed on the other of the first transition part  114  and the second transition part  124 . A convex point  1142  on the first transition part  114  is cooperatively connected to a concave hole  1143  on the second transition part  124 , and a concave hole  1143  on the first transition part  114  is cooperatively connected to a convex point  1142  on the second transition part  124 . In this way, compared with the solution in which at least one convex point  1142  may be disposed on one of the first transition part  114  and the second transition part  124 , and at least one convex hole  1143  may be disposed on the other of the first transition part  114  and the second transition part  124 , accuracy of mounting and positioning between the first fastener  11  and the second fastener  12  can be further improved. 
       FIG.  7    to  FIG.  10    are schematic diagrams of structures of rotation statuses of the angle adjustment apparatus  100  according to embodiments of this application.  FIG.  7    and  FIG.  8    are diagrams of statuses of the angle adjustment apparatus  100  in a horizontal rotation process. When the angle adjustment component  20  rotates in the horizontal direction relative to the fastening component  10 , the rotation member  22  of the angle adjustment component  20  is located in the accommodation cavity formed by the first groove body  111  of the first fastener  11  and the second groove body  121  of the second fastener  12  in the fastening component  10 . In an embodiment, the rotation part  221  is located in the first accommodation cavity formed by the first rotation groove  1111  and the second rotation groove  1211 , the linkage parts  222  are located in the second accommodation cavities formed by the first chutes  1112  and the second chutes  1212 , and the first chutes  1112  and the second chutes  1212  can limit moving ranges of the linkage parts  222 , to limit a rotation range of the angle adjustment component  20  in the horizontal direction relative to the fastening component  10 . After the first fastener  11  is cut off,  FIG.  7    shows a rotation position of the angle adjustment component  20  in the horizontal direction relative to the second fastener  12  in the fastening component  10 , and  FIG.  8    shows another rotation position of the angle adjustment component  20  in the horizontal direction relative to the second fastener  12  in the fastening component  10 . 
     When the angle adjustment component  20  rotates in the vertical direction relative to the fastening component  10 , the rotation member  22  of the angle adjustment component  20  is located in the accommodation cavity formed by the first groove body  111  of the first fastener  11  and the second groove body  121  of the second fastener  12  in the fastening component  10 . In an embodiment, the rotation part  221  is located in the first accommodation cavity formed by the first rotation groove  1111  and the second rotation groove  1211 , and the inner wall of the first through hole  2211  has the oblique arc surface  2212 , and the positioning member  30  is located in the first through hole  2211 . When the rotation member  22  rotates in the vertical direction relative to the positioning member  30 , the oblique arc surface  2212  is used to limit the rotation range of the rotation member  22  in the vertical direction. After the fastening component  10  and the angle adjustment component  20  are vertically sectioned along a plane on which an overall symmetry axis is located,  FIG.  9    shows a rotation position of the angle adjustment component  20  in the vertical direction relative to the first fastener  11  and the second fastener  12  in the fastening component  10 , and  FIG.  10    shows another rotation position of the angle adjustment component  20  in the vertical direction relative to the first fastener  11  and the second fastener  12  in the fastening component  10 . 
     In an embodiment of the application, when the fastening component  10  and the angle adjustment component  20  perform angle adjustment, the rotation member  22  of the angle adjustment component  20  is embedded in the accommodation cavity formed by the first groove body  111  of the first fastener  11  and the second groove body  121  of the second fastener  12  in the fastening component  10 . Then, referring to  FIG.  11   , the first stud  50  and the second stud  60  are first used to perform pre-fastening, to provide a damping force; and then the angle adjustment component  20  is rotated to separately adjust rotation angles of the angle adjustment component  20  in the horizontal direction and the vertical direction relative to the fastening component  10 . After the angle adjustment component  20  is adjusted to proper rotation angles, the positioning member  30  is sequentially penetrated through the fastening component  10  and the angle adjustment component  20  to perform angle fixing on the angle adjustment component  20 . After the positioning member  30  is tightened, full constraint locking is implemented between the fastening component  10  and the angle adjustment component  20 . 
     In an embodiment, as shown in  FIG.  12    and  FIG.  13   , a horizontal adjustment angle scale identifier  1132  may be disposed at a position at which an outer edge of the first connection part  113  of the fastening component  10  is close to the linkage part  222  or at a position at which an outer edge of the second connection part  123  of the fastening component  10  is close to the linkage part  222 . In this way, when the angle adjustment component  20  is rotated in the horizontal direction relative to the fastening component  10 , the horizontal adjustment angle scale identifier  1132  may be used to display a rotation angle of the angle adjustment component  20  in the horizontal direction relative to the fastening component  10 , to indicate a magnitude of an adjustment angle in the horizontal direction. 
     In addition, a vertical adjustment angle scale identifier  2221  may be further disposed at a position at which the linkage part  222  of the rotation member  22  is exposed from the first connection part  113  or the second connection part  123 . In this way, when the angle adjustment component  20  is rotated in the vertical direction relative to the fastening component  10 , the vertical adjustment angle scale identifier  2221  may be used to display a rotation angle of the angle adjustment component  20  in the vertical direction relative to the fastening component  10 , to indicate a magnitude of an adjustment angle in the vertical direction. 
     In an embodiment, the horizontal adjustment angle scale identifier  1132  and the vertical adjustment angle scale identifier  2221  may be calibrated by using a process such as laser or printing. 
     The horizontal adjustment angle scale identifier  1132  is disposed at the position at which the outer edge of the first connection part  113  of the fastening component  10  is close to the linkage part  222  or the position at which the outer edge of the second connection part  123  of the fastening component  10  is close to the linkage part  222 , and the vertical adjustment angle scale identifier  2221  is also disposed at the position at which the linkage part  222  of the rotation member  22  is exposed from the first connection part  113  or the second connection part  123 . Therefore, in an angle adjustment process, an angle adjustment position in the horizontal direction and an angle adjustment position in the vertical direction can be determined at one time based on a scale at a position at which the first connection part  113  is closest to the linkage part  222  or based on a scale at a position at which the second connection part  123  is closest to the linkage part  222 . 
     In an embodiment of the application, the angle adjustment apparatus  100  may further include an adapter component  40 . Referring to  FIG.  14    and  FIG.  15   , the adapter component  40  may be located on a side that is of the angle adjustment component  20  and that is away from the fastening component  10 , and the adapter component  40  is detachably connected to the angle adjustment component  20 . 
     In an embodiment, the adapter component  40  may be connected to the angle adjustment component  20  by using a dovetail structure. Fast deployment mounting and locking of the adapter component  40  to the angle adjustment component  20  can be implemented by disposing the dovetail structure. In an embodiment, the dovetail structure may include a male dovetail  201  and a female dovetail  401 . The male dovetail  201  may be disposed on one of the adapter component  40  and the angle adjustment component  20 , and the female dovetail  401  may be disposed on the other of the adapter component  40  and the angle adjustment component  20 . The male dovetail  201  is cooperatively connected to the female dovetail  401 . 
     For example, in an embodiment of the application, the female dovetail  401  is disposed on the adapter component  40  (as shown in  FIG.  16   ), and the male dovetail  201  is disposed on the angle adjustment component  20  (as shown in  FIG.  4   ). During actual mounting, a bottom of the female dovetail  401  on the adapter component  40  may slide onto the angle adjustment component  20  from a top of the male dovetail  201  on the angle adjustment component  20 . Under a guiding action, fast mounting is implemented. In this way, the male dovetail  201  cooperates with the female dovetail  401  to implement the connection between the adapter component  40  and the angle adjustment component  20 . 
     Certainly, in some other embodiments, the adapter component  40  in an embodiment of the application may be connected to the angle adjustment component  20  in another detachable manner, for example, through threaded connection, pin connection, adhesive connection, or buckle connection. A structure of the detachable connection is not limited in an embodiment of the application. Further, the adapter component  40  may be connected to the angle adjustment component  20  in a non-detachable manner. For example, both a connection end of the adapter component  40  and a connection end of the angle adjustment component  20  are metal materials. In this case, the two components may be connected in a welding manner. 
     In an embodiment, as shown in  FIG.  16   , the adapter component  40  may include an adapter board  41 . The female dovetail  401  is disposed on a surface that is of the adapter board  41  and that faces the angle adjustment component  20 , and a handle  411  and a mounting interface  412  configured to be connected to an external device may be further disposed on the adapter board  41 . The handle  411  can facilitate holding and lifting of an operator for the adapter board  41 , and the mounting interface  412  corresponds to a side interface of the external device, to implement fast mounting connection between the adapter board  41  and the external device. 
     In addition, it should be noted that the angle adjustment apparatus  100  provided in an embodiment of the application is applicable to angle adjustment mounting not only for a communications device, but also for a device that relates to angle adjustment mounting in others fields such as an indoor field or an outdoor field, for example, a common security device or an energy device. 
     In the description of embodiments of this application, it should be noted that, unless otherwise specified and limited, the term “mounting” or “connection” should be understood in a broad sense, for example, may be fastened connection, may be indirect connection performed by using an intermediate medium, or may be interconnection between two elements, or an interaction relationship between two elements. For persons of ordinary skill in the art, a meaning of the term in embodiments of this application may be understood based on a case. 
     In embodiments of this application, direction or position relationships are direction or position relationships shown based on the accompanying drawings, and are merely intended to describe this application and simplify description, but are not intended to indicate or imply that an indicated apparatus or element shall have a direction or be formed and operated in a direction, and therefore shall not be understood as limitations on this application. In the description of embodiments of this application, “a plurality of” means at least two, unless otherwise accurately specified. 
     In the specification, claims, and accompanying drawings of embodiments of this application, the terms “first”, “second”, “third”, “fourth”, and so on (if existent) are intended to distinguish between similar objects but do not necessarily indicate an order or sequence. It should be understood that the data termed in such a way are interchangeable in proper circumstances so that embodiments of this application described herein can be implemented in orders except the order illustrated or described herein. In addition, terms such as “include”, “have”, and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of operations or units is not necessarily limited to those clearly listed operations or units, but may include other operations or units that are not clearly listed or inherent to such a process, method, product, or device. 
     Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of embodiments of this application, rather than limiting embodiments of this application. Although embodiments of this application are described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some or all technical features thereof, without departing from the scope of the technical solutions of embodiments of the present application.