Patent ID: 12221811

DETAILED DESCRIPTION

In order to make the objectives, technical schemes and advantages of the present application more clear, the embodiments of the present application will be further described in detail below through implementations in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to explain the present application, but not to limit the present application.

Example Embodiment One

In order to improve the protection level of the ingress protection of a maintenance window and the reliability of a maintenance window locking device, the present application provides a maintenance window locking device. The maintenance window locking device provided by the present application is described below with reference to the embodiments.

FIG.1is a schematic structural diagram of a maintenance window locking device according to example Embodiment one of the present application. The maintenance window locking device includes: a maintenance window body1, a maintenance window cover2, a fastening plate3, a first limiting mechanism1aincluding a groove, and a roller3a. The fastening plate3includes a fastening plate body and a pin3c(not shown inFIG.1) which are of an integrated structure; the pin3cis rotatably connected to the roller3a. The maintenance window body1is hinged to a first end of the maintenance window cover2. The fastening plate3body is rotatably connected to a second end of the maintenance window cover2. The first limiting mechanism1ais located on the maintenance window body1. The fastening plate3body drives the maintenance window cover2to move toward the maintenance window body1. The roller3arolls along the first limiting mechanism1auntil the roller is clamped into the groove, such that the maintenance window cover2and the maintenance window body1are tightly attached. The pin3cis located on an inner side surface at an end of the fastening plate body where the fastening plate body is rotatably connected to the second end of the maintenance window cover. The fastening plate body may be in a shape of “hollow square (like a Chinese character “”) ” or in a “U” shape. When the fastening plate body is in the shape of “hollow square”, the fastening plate body further includes at least one strip structure or triangular structure at one end; and when the fastening plate body is in a “U” shape, the fastening plate3body further includes at least one strip structure or triangular structure at the open end, and the pin3crotatably connected to the roller3ais located on an inner side surface of the strip structure or triangular structure. The pin3cmay include a first pin and a second pin. The roller3amay include a first roller and a second roller. The first roller is rotatably connected to the first pin. The second roller is rotatably connected to the second pin.

The first limiting mechanism1aincluding the groove in this embodiment is located on the maintenance window body1. The fastening plate3body drives the maintenance window cover2to move toward the maintenance window body1. The roller3arolls along the first limiting mechanism1auntil the roller is clamped into the groove of the first limiting mechanism1a, such that the maintenance window cover2and the maintenance window body1are tightly attached. An elastic sealing material is provided on the maintenance window cover2and/or on the maintenance window body1. It is worth noting that the first limiting mechanism1amay be mounted on the maintenance window body1as shown inFIG.2, or the first limiting mechanism1aand the maintenance window body1are of an integrated structure as shown inFIG.9. When the first limiting mechanism1ais integrated with the maintenance window body1, the overall shape is compact and attractive, with a small occupied space and low manufacturing and mounting cost. It is worth noting that a size of the groove of the first limiting mechanism1amay be larger than a size of the roller3a, and may not be matched with the size of the roller3a, such that the groove does not completely wrap the roller3a, in which case the roller3acan have a proper range of motion in the groove. The size of the groove may also be matched with the size of the roller3a, that is, slightly larger than the size of the roller3a, such that the roller3arolls along the first limiting mechanism1auntil the roller3ais completely wrapped by the groove.

In some embodiments, a latching device may also be arranged on the fastening plate body, and a second limiting mechanism matched with the latching device is arranged on the maintenance window cover2. The latching device may be a spring lock hook3b1, a captive screw3b2, a hook or the like. The second limiting mechanism may be a baffle plate2a1matched with the spring lock hook3b1or the hook, and the second limiting mechanism may also be a threaded hole2a2matched with the captive screw3b2. The latching device on the fastening plate3body is matched with the second limiting mechanism, which can ensure that the roller3amechanism will not escape from the groove of the first limiting mechanism1a, thereby ensuring the reliability in locking and sealing of the entire maintenance window device.

In some embodiments, the maintenance window locking device may further include: a rotating shaft1b, and a support1ewith a first connecting hole. The support with the hole is arranged on the maintenance window body1. A second connecting hole is formed at the first end of the maintenance window cover2. The maintenance window body1is hinged to the first end of the maintenance window cover2, including: the rotating shaft1bpasses through the second connecting hole at the first end of the maintenance window cover2and into the first connecting hole, and a tightening nut locks the rotating shaft1b, the maintenance window body1and the maintenance window cover2. The maintenance window locking device may further include a shaft sleeve or a pressing block. The shaft sleeve is clamped between the rotating shaft1band the first connecting hole. The shaft sleeve and the rotating shaft1bare in tight fit to a certain amount of interference, so as to bring damping to rotation and ensure that the maintenance window cover2will not automatically rotate and fall due to the influence of gravity in a free state after opening. In some examples, the first connecting hole may be a blind hole, which allows the shaft to pass through from one side without the need for structural avoidance on the other side. During production and engineering maintenance, the maintenance window cover2may be removed and replaced from one side, thereby improving the reliability and convenience of the product. In some embodiments, the second connecting hole may also be a blind hole, but the first connecting hole is a through hole; and the maintenance window body1is hinged to the first end of the maintenance window cover2, including: the rotating shaft1bpasses through the first connecting hole and into the second connecting hole, and a tightening nut locks the rotating shaft1b, the maintenance window body1and the maintenance window cover2.

In some embodiments, a third connecting hole may be formed at the first end of the maintenance window cover2. The third connecting hole is a blind hole, and both the first connecting hole and the second connecting hole are through holes. The maintenance window body1is hinged to the first end of the maintenance window cover2, including: the rotating shaft1bpasses through the second connecting hole and the first connecting hole formed at the first end of the maintenance window cover2and into the third connecting hole, and a tightening nut locks the rotating shaft1b, the maintenance window body1and the maintenance window cover2. When the third connecting hole is further formed at the first end of the maintenance window cover2, the shaft sleeve in the maintenance window locking device may include a first shaft sleeve1cand a second shaft sleeve1d. The first shaft sleeve1cis clamped between the rotating shaft1band the first connecting hole, and the second shaft sleeve is clamped between the rotating shaft1band the third connecting hole.

An embodiment of the present application provides a maintenance window locking device, which includes a maintenance window body, a maintenance window cover, a fastening plate, a first limiting mechanism including a groove, and a roller. The fastening plate includes a fastening plate body and a pin which are of an integrated structure. The pin is rotatably connected to the roller. The maintenance window body is hinged to a first end of the maintenance window cover. The fastening plate body is rotatably connected to a second end of the maintenance window cover. The first limiting mechanism is located on the maintenance window body. The fastening plate body drives the maintenance window cover to move toward the maintenance window body. The roller rolls along the first limiting mechanism until the roller is clamped into the groove, such that the maintenance window cover and the maintenance window body are tightly attached to compress rubber sealing materials respectively fixed on the maintenance window cover and the maintenance window body, till the maintenance window cover and the maintenance window body are completely closed and locked, thereby achieving a sealing effect. Therefore, the protection level of the ingress protection of the maintenance window and the reliability of the maintenance window locking device are improved.

Example Embodiment Two

A maintenance window locking device of the present application improves the protection level of the ingress protection of a maintenance window and the reliability of the maintenance window locking device. For the convenience of understanding, a maintenance window locking device provided by the present application is described below by an example.

FIG.2is an exploded view of a maintenance window locking device according to example Embodiment two of the present application. The maintenance window locking device includes a maintenance window body1, a maintenance window cover2, a fastening plate3, a first limiting mechanism1aincluding a groove, a roller3a, a spring lock hook3b1, and a second limiting mechanism. The fastening plate3includes a fastening plate3body and a pin3cwhich are of an integrated structure. The pin3cis rotatably connected to the roller3a; the maintenance window body1is hinged to a first end of the maintenance window cover2. The spring lock hook3b1is mounted on the fastening plate body, and the second limiting mechanism matched with the spring lock hook3b1is arranged on the maintenance window cover2. The second limiting mechanism is a baffle plate2a1. The first limiting mechanism1ais mounted on the maintenance window body1. The fastening plate body is rotatably connected to a second end of the maintenance window cover2. The first limiting mechanism1ais located on the maintenance window body1. The fastening plate body drives the maintenance window cover2to move toward the maintenance window body1. The roller3arolls along the first limiting mechanism1auntil the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover2and the maintenance window body1are tightly attached.FIG.3shows a view when the roller3aand the first limiting mechanism1aare matched to close and lock the maintenance window, the partial enlarged views may refer toFIG.4andFIG.5. The fastening plate3is connected to the other end of the maintenance window cover2through pins at both sides. Rollers are respectively mounted on the pins inwardly extending at both sides of the end of the fastening plate3(below rotating shafts at both sides). The rollers are capable of freely rotating about the respective pins. When the fastening plate3drives the maintenance window cover2to move, the roller3amay be attached to the first limiting mechanism1amounted on the maintenance window body1and roll along the first limiting mechanism1auntil the roller is clamped into the groove of the first liming mechanism1a. At this time, the maintenance window cover2is just attached to the maintenance window body1to compress the sealing materials. In this case, the maintenance window cover2and the maintenance window body1are completely closed and locked to achieve a sealing effect.

The spring lock hook3b1and the limiting baffle plate2a1in this embodiment are shown inFIG.6. The spring lock hook3b1is mounted on the fastening plate3, and the baffle plate2a1is mounted at a corresponding position on the maintenance window cover2. When the maintenance window cover2and the maintenance window body1are attached to compress the sealing materials, the spring lock hook3b1can be clamped into the limiting baffle plate2a1, such that the roller3awill not escape from the groove of the first limiting mechanism1adue to vibration or other external forces, thereby ensuring the reliability in locking and sealing of the entire maintenance window device.FIG.7is a schematic diagram after the maintenance window locking device of the present application is completely locked, with a small overall occupied space, as well as beautiful and generous appearance.

The maintenance window locking device further includes a rotating shaft1band a support1ewith a first connecting hole, where the support with the hole is arranged on the maintenance window body1, and a second connecting hole and a third connecting hole are formed at the first end of the maintenance window cover2. The third connecting hole is a blind hole, and both the first connecting hole and the second connecting hole are through holes. The maintenance window body1is hinged to the first end of the maintenance window cover2, including: the rotating shaft1bpasses through the second connecting hole and the first connecting hole formed at the first end of the maintenance window cover2and into the third connecting hole, and a tightening nut locks the rotating shaft1b, the maintenance window body1and the maintenance window cover2. When the third connecting hole is further formed at the first end of the maintenance window cover2, the shaft sleeve may include a first shaft sleeve1cand a second shaft sleeve1d. In the sectional view shown inFIG.8, the first shaft sleeve1cis clamped between the rotating shaft1band the first connecting hole, and the second shaft sleeve1dis clamped between the rotating shaft1band the third connecting hole. The shaft sleeve and the rotating shaft1bare in tight fit to a certain amount of interference. During the tightening process of the rotating shaft1b, two sections of tapered polished shafts in the middle and at the rear end of the rotating shaft1bmay press the shaft sleeve1cand the shaft sleeve1dto the right, so as to form a damping effect when the maintenance window cover2rotates around a hinge mechanism. Therefore, it is ensured that when being opened and in a free state, the maintenance window cover2will not fall automatically due to the influence of gravity, thereby having no influence on the installation on the engineering site, and meanwhile ensuring the safety of related operations.

An embodiment of the present application provides a maintenance window locking device, which includes a maintenance window body, a maintenance window cover, a fastening plate, a first limiting mechanism including a groove, a roller, a spring lock hook and a second limiting mechanism. The fastening plate includes a fastening plate body and a pin which are of an integrated structure. The pin is rotatably connected to the roller. The maintenance window body1is hinged to a first end of the maintenance window cover; and the spring lock hook is mounted on the fastening plate body, and the second limiting mechanism matched with the spring lock hook is arranged on the maintenance window cover. The second limiting mechanism is a baffle plate. The first limiting mechanism is mounted on the maintenance window body. The fastening plate body is rotatably connected to a second end of the maintenance window cover. The first limiting mechanism is located on the maintenance window body. The fastening plate body drives the maintenance window cover to move toward the maintenance window body. The roller rolls along the first limiting mechanism until the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover and the maintenance window body are tightly attached to compress rubber sealing materials respectively fixed on the maintenance window cover and the maintenance window body, till the maintenance window cover and the maintenance window body are completely closed and locked, thereby achieving a sealing effect. Therefore, the protection level of the ingress protection of the maintenance window and the reliability of the maintenance window locking device are improved. Since the spring lock hook is matched with the second limiting mechanism, the roller cannot escape from the groove of the first limiting mechanism due to vibration or other external forces, thereby ensuring the reliability in locking and sealing of the entire maintenance window device.

Example Embodiment Three

A maintenance window locking device of the present application improves the protection level of the ingress protection of a maintenance window and the reliability of the maintenance window locking device. For the convenience of understanding, another maintenance window locking device provided by the present application is described below by an example.

FIG.9is a schematic structural diagram of a maintenance window locking device according to example Embodiment three of the present application. The maintenance window locking device includes a maintenance window body1, a maintenance window cover2, a fastening plate3, a first limiting mechanism1aincluding a groove, a roller3a, a spring lock hook3b1, and a second limiting mechanism. The fastening plate3includes a fastening plate3body and a pin3cwhich are of an integrated structure. The pin3cis rotatably connected to the roller3a. The maintenance window body1is hinged to a first end of the maintenance window cover2. The spring lock hook3b1is mounted on the fastening plate3body, and the second limiting mechanism matched with the spring lock hook3b1is arranged on the maintenance window cover2. The second limiting mechanism is a baffle plate2a1. The fastening plate3body is rotatably connected to a second end of the maintenance window cover2. The first limiting mechanism1ais located on the maintenance window body1. The fastening plate3body drives the maintenance window cover2to move toward the maintenance window body1. The roller3arolls along the first limiting mechanism1auntil the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover2and the maintenance window body1are tightly attached. The difference from example Embodiment two lies in that the first limiting mechanism1aand the maintenance window body1are of an integrated structure, which reduces the number of parts and the processing and mounting cost. The maintenance window locking device may be applied to an AAU or RRU.FIG.10is a schematic diagram of example Embodiment three of the present application specifically applied to a certain type of AUU. A maintenance window is integrated with an AAU body, achieving a compact and attractive overall shape, small occupied space and low manufacturing and mounting cost.

An embodiment of the present application provides a maintenance window locking device, which includes a maintenance window body, a maintenance window cover, a fastening plate, a first limiting mechanism including a groove, a roller, a spring lock hook and a second limiting mechanism. The fastening plate includes a fastening plate body and a pin which are of an integrated structure. The pin is rotatably connected to the roller. The maintenance window body is hinged to a first end of the maintenance window cover. The spring lock hook is mounted on the fastening plate body, and the second limiting mechanism matched with the spring lock hook is arranged on the maintenance window cover. The second limiting mechanism is a baffle plate. The first limiting mechanism and the maintenance window body are of an integrated structure. The fastening plate body is rotatably connected to a second end of the maintenance window cover; the first limiting mechanism is located on the maintenance window body; the fastening plate body drives the maintenance window cover to move toward the maintenance window body; and the roller rolls along the first limiting mechanism until the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover and the maintenance window body are tightly attached to compress the rubber sealing materials respectively fixed on the maintenance window cover and the maintenance window body, till the maintenance window cover and the maintenance window body are completely closed and locked, thereby achieving a sealing effect. Therefore, the protection level of the ingress protection of the maintenance window and the reliability of the maintenance window locking device are improved, the number of parts is decreased, and the processing and mounting cost is reduced.

Embodiment Four

A maintenance window locking device of the present application improves the protection level of the ingress protection of a maintenance window and the reliability of the maintenance window locking device. For the convenience of understanding, another maintenance window locking device provided by the present application is described below by an example.

FIG.11is a schematic structural diagram of a maintenance window locking device of Embodiment four. The maintenance window locking device includes a maintenance window body1, a maintenance window cover2, a fastening plate3, a first limiting mechanism1aincluding a groove, a roller3a, a captive screw3b2, and a second limiting mechanism. The fastening plate3includes a fastening plate3body and a pin3cwhich are of an integrated structure. The pin3cis rotatably connected to the roller3a. The maintenance window body1is hinged to a first end of the maintenance window cover2. The captive screw3b2is mounted on the fastening plate3body, and the second limiting mechanism matched with the captive screw3b2is arranged on the maintenance window cover2. The second limiting mechanism is a threaded hole2a2. The first limiting mechanism1ais mounted on the maintenance window body1. The fastening plate3body is rotatably connected to a second end of the maintenance window cover2. The first limiting mechanism1ais located on the maintenance window body1. The fastening plate3body drives the maintenance window cover2to move toward the maintenance window body1. The roller3arolls along the first limiting mechanism1auntil the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover2and the maintenance window body1are tightly attached. The captive screw3b2is used to replace the combination of the spring lock hook3b1and the limiting baffle plate2a1matched therewith, which reduces the number of parts and the cost.

As shown inFIG.12, after the maintenance window cover22is fully buckled with the maintenance window body11, the captive screw3b2may be fastened to the corresponding threaded hole2a2in the maintenance window cover22, thereby ensuring the reliability in locking and sealing of the entire maintenance window device.

An embodiment of the present application provides a maintenance window locking device, which includes a maintenance window body, a maintenance window cover, a fastening plate, a first limiting mechanism including a groove, and a roller. The fastening plate includes a fastening plate body and a pin which are of an integrated structure. The pin is rotatably connected to the roller. The maintenance window body is connected to a first end of the maintenance window cover. The fastening plate body is rotatably connected to a second end of the maintenance window cover. The first limiting mechanism is located on the maintenance window body. The fastening plate body drives the maintenance window cover to move toward the maintenance window body. The roller rolls along the first limiting mechanism until the roller is clamped into the groove, such that the maintenance window cover and the maintenance window body are tightly attached. In some implementations, the operation, including but is not limited to locking the maintenance window is easy to achieve and relatively high in efficiency. Meanwhile, the protection level of the ingress protection of the maintenance window is improved, and the maintenance window locking device is more reliable.

An embodiment of the present application provides a maintenance window locking device, which includes a maintenance window body, a maintenance window cover, a fastening plate, a first limiting mechanism including a groove, a roller, a captive screw and a second limiting mechanism. The fastening plate includes a fastening plate body and a pin which are of an integrated structure. The pin is rotatably connected to the roller. The maintenance window body is hinged to a first end of the maintenance window cover. The captive screw is mounted on the fastening plate body, and the second limiting mechanism matched with the captive screw is arranged on the maintenance window cover. The second limiting mechanism is a threaded hole. The first limiting mechanism is mounted on the maintenance window body. The fastening plate body is rotatably connected to a second end of the maintenance window cover. The first limiting mechanism is located on the maintenance window body. The fastening plate body drives the maintenance window cover to move toward the maintenance window body. The roller rolls along the first limiting mechanism until the roller is clamped into the groove, such that a rubber sealing material on the maintenance window cover and the maintenance window body are tightly attached to compress rubber sealing materials respectively fixed on the maintenance window cover and the maintenance window body, till the maintenance window cover and the maintenance window body are completely closed and locked, thereby achieving a sealing effect. Therefore, the protection level of the ingress protection of the maintenance window and the reliability of the maintenance window locking device are improved, the number of parts is decreased, and the processing and mounting cost is reduced.

The above content is a further detailed description of the embodiments of the present application in conjunction with specific implementations, and it cannot be considered that the specific implementations of the present application are limited to these descriptions. For those of ordinary skill in the art to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be regarded as falling within the protection scope of the present application.