Patent Publication Number: US-11378265-B2

Title: Spot lamp holder and spot lamp

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of PCT patent application No. PCT/CN2019/107115 filed on Sep. 20, 2019, which claims priority to Chinese Patent Application No. 201821555190.3, filed on Sep. 21, 2018, the entire contents of all of which are hereby incorporated by reference herein for all purposes. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the technical field of lighting, and more particularly, to a spot lamp holder and a spot lamp. 
     BACKGROUND 
     Most of existing spot lamp holders are assembled from three and more components, and numerous components lead to cumbersome assembling and disassembling. Different components of a spot lamp holder are generally connected by screws, resulting in not only time-consuming assembling but also time-consuming disassembling. Different components of an existing spot lamp holder may also be connected in other ways, but these ways still have inconvenient assembling and disassembling. 
     In addition, after an existing spot lamp holder is assembled, different components are prone to separation no matter in drop test, in transportation, or when acted upon by a force. That is, the connection between different components exhibits low reliability after the existing spot lamp holder is assembled. 
     SUMMARY 
     The present disclosure provides a spot lamp holder and a spot lamp. 
     According to a first aspect, the present disclosure provides a spot lamp holder. The spot lamp holder may include a first housing and a second housing. The second housing may include a mounting cavity. A mounting end of the second housing may be an open end and coupled with the mounting cavity. A first limiting portion and a second limiting portion spaced apart from each other may be disposed on an inner wall of the mounting cavity. A mounting groove may be disposed between the first limiting portion and the second limiting portion. The first housing may include a clamping portion. The clamping portion may be fitted with the mounting groove. 
     According to a second aspect, the present disclosure provides a spot lamp. The spot lamp may include a first housing and second housing. The second housing may include a mounting cavity. A mounting end of the second housing may be an open end and coupled with the mounting cavity. A first limiting portion and a second limiting portion may be spaced apart from each other are disposed on an inner wall of the mounting cavity. A mounting groove may be disposed between the first limiting portion and the second limiting portion. The first housing may include a clamping portion. The clamping portion may be fitted with the mounting groove. A lamp assembly may be mounted on the spot lamp holder. The lamp assembly may include a lamp. 
     It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. 
         FIG. 1  is a structural schematic diagram of a first housing according to one or more embodiments of the present disclosure; 
         FIG. 2  is a structural schematic diagram of a second housing according to one or more embodiments of the present disclosure; 
         FIG. 3  is a structural schematic diagram of a first housing and a lamp assembly after being combined according to one or more embodiments of the present disclosure; 
         FIG. 4  is a partial enlarged view of area I in  FIG. 3  according to one or more embodiments of the present disclosure; 
         FIG. 5  is a schematic diagram of an overall structure of a spot lamp according to one or more embodiments of the present disclosure; 
         FIG. 6  is a top view of a spot lamp according to one or more embodiments of the present disclosure; 
         FIG. 7  is a sectional view of the spot lamp along a A-A direction in  FIG. 6  according to one or more embodiments of the present disclosure; and 
         FIG. 8  is a partial enlarged view of area II in  FIG. 7  according to one or more embodiments of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Reference will now be made in detail to example embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise represented. The implementations set forth in the following description of example embodiments do not represent all implementations consistent with the disclosure. Instead, they are merely examples of apparatuses and methods consistent with aspects related to the disclosure as recited in the appended claims. 
     The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in the present disclosure and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It shall also be understood that the term “and/or” used herein is intended to signify and include any or all possible combinations of one or more of the associated listed items. 
     It shall be understood that, although the terms “first,” “second,” “third,” etc. may be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one category of information from another. For example, without departing from the scope of the present disclosure, first information may be termed as second information; and similarly, second information may also be termed as first information. As used herein, the term “if” may be understood to mean “when” or “upon” or “in response to a judgment” depending on the context. 
       FIG. 1  is a structural schematic diagram of a first housing according to one or more embodiments of the present disclosure. A spot lamp holder in the present embodiment includes a first housing  10  and a second housing  20 . The second housing  20  has a mounting cavity  21 . A mounting end  211  of the second housing  20  is an open end and communicated with the mounting cavity  21 . A first limiting portion  22  and a second limiting portion  26  spaced apart from each other are disposed on the inner wall of the mounting cavity  21 . A mounting groove is formed between the first limiting portion  22  and the second limiting portion  26 . The first housing  10  includes a clamping portion  18 , the clamping portion  18  is in clamping fit with the mounting groove. The spot lamp holder in the present embodiment includes two components, namely the first housing  10  and the second housing  20 . Compared with an existing spot lamp holder including three and more components, the components of the spot lamp holder of the present disclosure are relatively less, which allows for convenient and rapid assembly. The first housing  10  and the second housing  20  in the present embodiment are assembled by clamping the clamping portion  18  in the mounting groove. Compared with the assembling of various components of an existing spot lamp holder by tightening screws, the first housing  10  and the second housing  20  in the present embodiment can be assembled conveniently and rapidly. 
     In one or more embodiments, the mounting cavity  21  is opened at top and bottom. Each of the first limiting portion  22  and the second limiting portion  26  has a ring-like structure, and an inner diameter of the second limiting portion  26  is smaller than that of the first limiting portion  22 . Instead of the ring-like structure, each of the first limiting portion  22  and the second limiting portion  26  in the present embodiment may also have a structure formed by a plurality of discontinuous circular arcs arranged in the circumferential direction. 
       FIG. 2  is a structural schematic diagram of a second housing according to one or more embodiments of the present disclosure. As shown in  FIG. 2 , the distance between the second limiting portion  26  and the mounting end  211  of the second housing  20  is greater than the distance between the first limiting portion  22  and the mounting end  211  of the second housing  20 . That is, the first limiting portion  22  is closer to the mounting end  211  of the second housing  20  than the second limiting portion  26 . The first limiting portion  22  is disposed on the mounting end  211  of the second housing  20 . 
     As shown in  FIG. 2  to  FIG. 4 , the clamping portion  18  includes a movable body  12 , and the movable body  12  is in movable limiting fit with the first limiting portion  22 . The clamping portion  18  of the first housing  10  may be pressed toward the second housing  20  into the mounting cavity  21  until the movable body  12  enters the mounting groove and expands outwards to be restrained by the first limiting portion  22 . In this case, two ends of the clamping portion  18  of the first housing  10  are restrained by the first limiting portion  22  and the second limiting portion  26 , respectively. With the clamping fit between the clamping portion  18  and the mounting groove, the first housing  10  and the second housing  20  can be assembled together. 
     In one or more embodiments, the movable body  12  is made of an elastic material and 3-5 movable bodies  12  are used. A plurality of movable bodies  12  may be arranged at intervals in the circumferential direction. During the process of pressing the clamping portion  18  of the first housing  10  toward the second housing  20  into the mounting groove, the movable body  12  is first pressed inwards by the first limiting portion  22 , and after entering the mounting groove, the movable body  12  expands outwards to be restrained by the first limiting portion  22 . Alternatively, the movable body  12  in the present embodiment may not be made of an elastic material. Instead, the movable body  12  may be movably mounted on the clamping portion  18  through an intermediate elastic component. The movable body  12  can be moved through the intermediate elastic component. 
     In one or more embodiments, as shown in  FIG. 1  and  FIG. 4 , the first housing  10  includes a first connecting portion  11 . The first connecting portion  11  includes a first ring  13 , a clamping portion  18 , a stop block  16 , and an operating portion  19 . The clamping portion  18  includes a movable body  12  and a second ring  14 . The second ring  14  is closer to the connecting end  14 - 2  of the first housing  10  than the first ring  13 . The movable body  12  is mounted on the second ring  14 . 
     As shown in  FIG. 7  and  FIG. 8 , the surface, oriented toward the second limiting portion  26 , of the first limiting portion  22  is a first limiting surface  22 - 1 , while the surface, oriented toward the first limiting portion  22 , of the second limiting portion  26  is a second limiting surface  26 - 1 .  FIG. 4  is a partial enlarged view of area I in  FIG. 3  according to one or more embodiments of the present disclosure. The movable body  12  has a first surface  12 - 2 - 1  in movable limiting fit with the first limiting surface  22 - 1 , while the second ring  14  has a second surface  14 - 1  in limiting fit with the second limiting surface  26 - 1 . 
     The first ring  13  has an inwardly depressed anti-collision groove  13 - 1  corresponding to the movable body  12 , and a moving gap is formed between the movable body  12  and the anti-collision groove  13 - 1 . To facilitate the inward moving of the movable body  12  and to facilitate the assembling and disassembling of the first housing  10  and the second housing  20 , the first ring  13  may have a plurality of anti-collision grooves  13 - 1  disposed uniformly in the circumferential direction. Each anti-collision groove  13 - 1  is depressed inwardly and disposed corresponding to the movable body  12 , and a moving gap is formed between the movable body  12  and the anti-collision groove  13 - 1 , allowing the movable body  12  to move inwards. In one or more embodiments, the operating portion  19  is connected to the movable body  12 ; or, the operating portion  19  is integrally formed with the movable body  12 . The movable body  12  includes a main portion  12 - 2 , a mounting portion  12 - 3  and a circular arc portion  12 - 4 . The surface, oriented toward the first limiting surface  22 - 1 , of the main portion  12 - 2  is a first surface  12 - 2 - 1 . The operating portion  19  is disposed directly facing the anti-collision groove  13 - 1 . 
       FIG. 3  is a structural schematic diagram of a first housing and a lamp assembly after being combined according to one or more embodiments of the present disclosure. As shown in  FIG. 3 , the operating portion  19  is located in the anti-collision groove  13 - 1 , and an outer lateral surface of the operating portion  19  is located along the same circumferential surface with the outer surface of the first ring  13 . The operating portion  19  may also be disposed directly facing the anti-collision groove  13 - 1 , but located outside the anti-collision groove  13 - 1 . 
     A moving gap is formed between the operating portion  19  and the anti-collision groove  13 - 1 . When disassembling the first housing  10  and the second housing  20 , the operating portion  19  is pushed inwards, causing the main portion  12 - 2  to move inwards to be disengaged from the first limiting surface  22 - 1 . After all the main portions  12 - 2  are disengaged from the first limiting surface  22 - 1 , the first housing  10  can be dismounted from the second housing  20  conveniently. 
     As shown in  FIG. 1 , the second ring  14  has a smaller diameter than the first ring  13 . The second ring  14  has a greater height than the first ring  13 . 
     During the moving of the movable body  12 , breakage may easily occur between the mounting portion  12 - 3  and the main portion  12 - 2 . Therefore, the circular arc portion  12 - 4  is used for transition between the mounting portion  12 - 3  and the main portion  12 - 2  so as to prolong the service life of the movable body  12 . 
     In one or more embodiments illustrated in  FIG. 4 , the outer lateral surface of the main portion  12 - 2  includes a first outer lateral surface  12 - 2 - 2  close to the first limiting portion  22  and a second outer lateral surface  12 - 2 - 3  far away from the first limiting portion  22 . The second outer lateral surface  12 - 2 - 3  is an inclined guide surface that serves for guiding. The second outer lateral surface  12 - 2 - 3  has a proximal end that is close to the first limiting portion  22  and a distal end that is far away from the first limiting portion  22 . The second outer lateral surface  12 - 2 - 3  is slanted from the distal end to the proximal end toward the inner wall of the mounting cavity  21 . With the second outer lateral surface  12 - 2 - 3  for guiding, the clamping portion  18  can be pressed into the mounting groove and moved out of the mounting groove conveniently. The first outer lateral surface  12 - 2 - 2  is disposed perpendicular to the first surface  12 - 2 - 1 . 
     As shown in  FIG. 2 , a convex ring  23  is disposed between the first limiting portion  22  and the second limiting portion  26  on the inner wall of the mounting cavity  21 . A clamping groove  24  is formed between the convex ring  23  and the first limiting portion  22  and matched with the main portion  12 - 2 . 
     The clamping portion  18  can be rotated in the mounting groove. That is, the first housing  10  and the second housing  20  can be rotated relative to each other. A limiting block  25  is mounted on the second housing  20  so as to limit the angle of rotation of the first housing  10  and the second housing  20  relative to each other. The limiting block  25  is in limiting fit with the first housing  10  in the direction of rotation of the first housing  10 . In one or more embodiments, the limiting block  25  is mounted on the inner wall of the convex ring  23 ; or, the limiting block  25  is mounted on the second limiting surface  26 - 1  of the second limiting portion  26 ; or, two surfaces of the limiting block  25  are mounted on the inner wall of the convex ring  23  and the second limiting surface  26 - 1  of the second limiting portion  26 , respectively. Correspondingly, a stop block  16  matched with the limiting block  25  is disposed on the first housing  10 . In one or more embodiments, the stop block  16  is disposed on the clamping portion  18  and located closer to the inner wall of the convex ring  23  than the outer circumferential surface of the second ring  14 . 
     In one or more embodiments, the stop block  16  has a shaft hole  31  for mounting a lamp rotating shaft. The stop block  16  serves not only to mount a lamp rotating shaft but also to limit unrestricted 360-degree rotation of the first housing  10  and the second housing  20  relative to each other by being restrained by the limiting block  25 . In one or more embodiments, the limiting structure between the limiting block  25  and the stop block  16  allows the first housing  10  and the second housing  20  to rotate about 355 degrees relative to each other. 
     In one or more embodiments, the first housing  10  includes an arc-shaped mounting block  15 , and the arc-shaped mounting block  15  has a sliding groove  15 - 1 . The sliding groove  15 - 1  is used for mounting and adjusting a sliding screw  32  therein. 
     The specific assembling process is provided as follows: the clamping portion  18  of the first housing  10  is pressed toward the second housing  20  into the mounting groove, during which the movable body  12  is pressed inwards by the inner wall of the first limiting portion  22 . With the anti-collision groove  13 - 1 , the movable body  12  can be moved inwards. With the second outer lateral surface  12 - 2 - 3 , the movable body  12  is allowed to enter the mounting groove more smoothly. After entering the mounting groove, the movable body  12  expands outwards, i.e., toward the inner wall of the mounting cavity  21 . With the limiting fit between the first surface  12 - 2 - 1  of the main portion  12 - 2  of the movable body  12  and the first limiting surface  22 - 1  and the limiting fit between the second surface  14 - 1  of the second ring  14  and the second limiting surface  26 - 1 , the first housing  10  and the second housing  20  can be assembled together conveniently and rapidly. After the assembling is completed, the outer surface of the operating portion  19  comes in contact with the inner wall of the first limiting portion  22 . 
     The specific disassembling process is provided as follows: the operating portion  19  is pushed inwards to move inwards along the anti-collision groove  13 - 1 , causing the first surface  12 - 2 - 1  of the main portion  12 - 2  to be disengaged from the first limiting surface  22 - 1 . After the first surfaces  12 - 2 - 1  of all the main portions  12 - 2  are disengaged from the first limiting surface  22 - 1  by the same way, the first housing  10  can be dismounted from the second housing  20  conveniently and rapidly. 
     After the spot lamp holder in the present embodiment is assembled, the first housing  10  and the second housing  20  are not prone to separation no matter in drop test, in transportation, or when acted upon by a force. That is, the connection between the first housing  10  and the second housing  20  exhibits good reliability after the spot lamp holder in the present embodiment is assembled. 
     A spot lamp in the present embodiment includes the spot lamp holder as described above. A lamp assembly is mounted on the spot lamp holder. The spot lamp holder of the spot lamp in the present embodiment includes two components, namely the first housing  10  and the second housing  20 . Compared with an existing spot lamp holder including three and more components, the components of the spot lamp holder of the present disclosure is relatively less, which allows for convenient and rapid assembly. The first housing  10  and the second housing  20  in the present embodiment are assembled by clamping the clamping portion  18  in the mounting groove. Compared with the assembling of various components of an existing spot lamp holder by tightening screws, the first housing  10  and the second housing  20  in the present embodiment can be assembled conveniently and rapidly. Convenient and rapid assembling of the spot lamp holder leads to convenient and rapid assembling of the spot lamp in the present embodiment. 
     After the spot lamp holder of the spot lamp in the present embodiment is assembled, the first housing  10  and the second housing  20  are not prone to separation no matter in drop test, in transportation, or when acted upon by a force. That is, the connection between the first housing  10  and the second housing  20  of the spot lamp in the present embodiment exhibits good reliability. 
       FIG. 5  is a schematic diagram of an overall structure of a spot lamp according to one or more embodiments of the present disclosure.  FIG. 6  is a top view of a spot lamp according to one or more embodiments of the present disclosure. 
     As shown in  FIG. 5  and  FIG. 6 , the first housing  10  includes an arc-shaped mounting block  15 , and the arc-shaped mounting block  15  has a sliding groove  15 - 1 . A sliding screw  32  is disposed in the sliding groove  15 - 1  and connected to the lamp assembly. A lamp is connected to the shaft hole  31  of the first housing  10  through a lamp rotating shaft. The position of the sliding screw  32  in the sliding groove  15 - 1  is adjusted, thereby adjusting an illuminating angle of the spot lamp. During this process, the lamp would rotate around the lamp rotating shaft. When the illuminating angle is adjusted to be an appropriate one, the sliding screw  32  is locked and thereby fixed in the sliding groove  15 - 1 . 
     In one or more embodiments, a spot lamp holder has a distance between the second limiting portion and the mounting end of the second housing is greater than a distance between the first limiting portion and the mounting end of the second housing; the clamping portion includes a movable body, the movable body is in movable limiting fit with the first limiting portion. 
     In one or more embodiments, a spot lamp holder has a movable body made of an elastic material. 
     In one or more embodiments, a spot lamp holder has a movable body that includes a main portion; a convex ring is disposed between the first limiting portion and the second limiting portion on the inner wall of the mounting cavity; and a clamping groove is disposed between the convex ring and the first limiting portion and matched with the main portion. 
     In one or more embodiments, a spot lamp holder has a first housing that includes an inwardly depressed anti-collision groove disposed corresponding to the movable body. 
     In one or more embodiments, a spot lamp holder has a spot lamp holder that further includes an operating portion connected to the movable body, and the operating portion is disposed directly facing the anti-collision groove. 
     In one or more embodiments, a spot lamp holder has an outer lateral surface of the movable body that includes an inclined guide surface; the inclined guide surface includes a proximal end that is close to the first limiting portion and a distal end that is far away from the first limiting portion; and the inclined guide surface is slanted from the distal end to the proximal end toward the inner wall of the mounting cavity. 
     In one or more embodiments, a spot lamp holder has a clamping portion that includes a movable body and a second ring; and the movable body is mounted on the second ring. 
     In one or more embodiments, a spot lamp holder has a first housing that includes a first connecting portion; the first connecting portion includes a clamping portion and a first ring; a distance between the first ring and a connecting end of the first connecting portion is greater than a distance between the second ring and the connecting end of the first connecting portion; and the first ring includes an inwardly depressed anti-collision groove disposed corresponding to the movable body. 
     In one or more embodiments, a spot lamp holder has a second housing that includes a limiting block, the first housing includes a stop block, and the stop block is in limiting fit with the limiting block in a direction of rotation of the first housing. 
     In one or more embodiments, a spot lamp holder has a limiting block that is disposed on the inner wall of the mounting cavity, and the stop block is disposed on the clamping portion. 
     In one or more embodiments, a spot lamp holder has a stop block that includes a shaft hole. 
     In one or more embodiments, a spot lamp holder has a first housing that includes an arc-shaped mounting block; and a sliding groove is disposed on the arc-shaped mounting block. 
     A spot lamp, including the abovementioned spot lamp holder, a lamp assembly is mounted on the spot lamp holder; and the lamp assembly includes a lamp. 
     In one or more embodiments, a spot lamp holder has a first housing that is provided with a sliding groove in which a sliding screw is disposed; and the sliding screw is in sliding fit with the sliding groove, and the sliding screw is connected to the lamp assembly. 
     In one or more embodiments, a spot lamp holder has a second housing that includes a limiting block, the first housing includes a stop block; the stop block is in limiting fit with the limiting block in a direction of rotation of the first housing; the stop block has a shaft hole; a lamp rotating shaft is mounted in the shaft hole; and one end of the lamp is connected to the first housing through the lamp rotating shaft. 
     The present disclosure has the following advantages: 
     (1) The spot lamp holder includes two components, the first housing and the second housing, and the number of components is relatively small. Compared with the existing spot lamp holder containing three or more components, the spot lamp holder of the present disclosure is convenient and quick to assemble. 
     (2) The first housing and the second housing are assembled by clamping the mounting groove and the clamping portion. Compared with the assembling of various components of an existing spot lamp holder by tightening screws, the first housing and the second housing of the present disclosure can be assembled conveniently and rapidly. 
     The above is only the best embodiment of the present disclosure, and does not limit the present disclosure in any form. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present disclosure by using the above disclosed methods and contents without departing from the scope of the technical solution of the present disclosure, which belongs to the protection scope of the accompanying claims.