LED display screen box power box lock

Abstract

This utility model provides a lock for an LED display cabinet power supply box, including a handle, a movable locking assembly, and a positioning locking block. The handle has a U-shaped structure, including a hand-held part and mounting arms connected to the front sides of both ends of the hand-held part. The rear end of the mounting arm is connected to the hand-held part, and the front end has an upwardly protruding mounting block. The front ends of the two mounting arms have horizontally arranged screw mounting holes. A first screw is installed in the screw mounting hole. The positioning locking block includes a fixing part and a positioning part connected below the fixing part. The fixing part is fixedly connected to the mounting block. The positioning part is hook-shaped. The movable locking assembly includes a fixing member, a mounting shaft, a movable locking block, and a torsion spring. The fixing member is fixed to the bottom of the hand-held part. The movable locking block is rotatably connected to the bottom of the fixing member through the mounting shaft. The torsion spring is sleeved on the mounting shaft, and the pressure feet at both ends abut against the fixing member and the movable locking block, respectively. The bottom of the movable locking block has a forward-protruding ridge. This design is installed on the upper box of the power supply box to lock the lower box, realizing the quick locking and unlocking of the upper and lower boxes.

Description

Technical Field

[0001] This utility model relates to the field of LED display cabinet technology, and specifically designs a power supply box lock for LED display cabinets. Background Technology

[0002] The LED display cabinet has a power supply box containing a battery for power. In the past, the power supply box was installed by snapping on a clip, which was unstable and could come loose. If it came loose during use, it would pose a safety hazard. If it were fixed with screws, the screws would need to be removed for maintenance and then tightened again after maintenance, which was inconvenient. Therefore, an improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a lock for the power supply box of an LED display cabinet to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A power supply box lock for an LED display cabinet includes a handle, a movable locking assembly, and a positioning locking block. The handle has a U-shaped structure, including a hand-held portion and mounting arms connected to the front sides of both ends of the hand-held portion. The rear end of each mounting arm is connected to the hand-held portion, and the front end has an upwardly protruding mounting block. The front ends of the two mounting arms have horizontally arranged screw mounting holes. A first screw is installed in each screw mounting hole. The positioning locking block includes a fixing portion and a positioning portion connected below the fixing portion. The fixing portion is fixedly connected to the mounting block. The positioning portion is hook-shaped. The movable locking assembly includes a fixing member, a mounting shaft, a movable locking block, and a torsion spring. The fixing member is fixed to the bottom of the hand-held portion. The movable locking block is rotatably connected to the bottom of the fixing member via the mounting shaft. The torsion spring is sleeved on the mounting shaft, and the pressure feet at both ends abut against the fixing member and the movable locking block, respectively. The bottom of the movable locking block has a forward-protruding ridge.

[0006] In a further description of the present invention, the hand-held portion is curved upward and backward toward the mounting arm.

[0007] In a further description of this utility model, the screw mounting hole is a countersunk hole; the countersunk groove of the countersunk hole is located on the opposite side of the two mounting arms.

[0008] In a further description of this utility model, the fixing part and the mounting block are fixedly connected by a second screw.

[0009] In a further description of this utility model, the front end of the mounting block is provided with a limiting protrusion; the limiting protrusion is located on one side of the two mounting blocks facing away from each other; the bottom surface of the limiting protrusion has an arc-shaped structure.

[0010] In a further description of this utility model, the fixing member is positioned with the hand-held part by a positioning post and is locked to the bottom of the hand-held part by a third screw.

[0011] In a further description of the present invention, the upper rear part of the movable locking block is provided with a pressing plate extending to the rear side.

[0012] As further described in this utility model, the bottom of the pressing plate is provided with anti-slip texture.

[0013] The beneficial effects of this utility model are as follows:

[0014] The two mounting arms of this design are rotatably connected to the upper body of the power supply box via a first screw. Manually pressing down on the handle rotates it around the first screw. After pressing down, the protrusion on the front of the movable locking block abuts against the bottom of the flange on the rear side of the upper body. The torsion spring provides pressure to the movable locking block, preventing it from loosening after locking. Simultaneously, the positioning part of the positioning locking block engages with the positioning protrusion on the outer side of the lower body of the power supply box, thus locking the upper and lower bodies of the power supply box. To open the power supply box, the movable locking block is swung backward and upward, rotating around the mounting shaft. This causes the protrusion on the lower front of the movable locking block to separate from the flange of the upper body. Lifting the handle upward further disengages the positioning part from the positioning protrusion on the outer side of the lower body, allowing the power supply box to open. This design is easy to operate and efficiently controls the locking and unlocking of the upper and lower bodies of the power supply box. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the movable locking assembly of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figure 1-2As shown, an LED display cabinet power supply box lock includes a handle 1, a movable locking assembly 2, and a positioning locking block 3. The handle 1 has a U-shaped structure, including a hand-held part 11 and mounting arms 12 connected to the front sides of both ends of the hand-held part 11. The rear end of the mounting arm 12 is connected to the hand-held part 11, and the front end is provided with an upwardly protruding mounting block 121. The front ends of the two mounting arms 12 are provided with horizontally arranged screw mounting holes 122. A first screw 1201 is installed in the screw mounting hole 122. The positioning locking block 3 includes a fixing part 31 and a positioning part 32 connected below the fixing part 31. The fixing part 31 and the positioning part 32 are connected to the fixing part 31. Mounting block 121 is fixedly connected; the positioning part 32 is hook-shaped; the movable locking assembly 2 includes a fixing member 21, a mounting shaft 22, a movable locking block 23, and a torsion spring 24; the fixing member 21 is fixed to the bottom of the handheld part 11; the movable locking block 23 is rotatably connected to the bottom of the fixing member 21 through the mounting shaft 22; the torsion spring 24 is sleeved on the mounting shaft 22 and the pressure feet 241 at both ends abut against the fixing member 21 and the movable locking block 23 respectively; the bottom of the movable locking block 23 is provided with a forward-protruding rib 231; the power box includes an upper box body and a lower box body, and the power box lock in this design is used to be installed on the upper box body and the lower box body. The upper and lower boxes are locked and unlocked. The upper box has a flange on its rear side, and the lower box has positioning protrusions on its left and right sides. The two mounting arms 12 of the handle 1 are rotatably connected to the outside of the upper box by the first screw 1201. The first screw 1201 does not lock the mounting arms 12, allowing the mounting arms 12 to rotate around the first screw 1201. When it is necessary to lock the upper and lower boxes, the handle 1 is pressed down until the protrusion 231 of the movable locking block 23 abuts against the bottom of the flange of the upper box. The positioning block is hook-shaped and engages with the positioning protrusion of the lower box, thus locking the upper and lower boxes. When it is necessary to loosen the upper and lower boxes, the movable locking block 23 is controlled to swing backward and upward. The movable locking block 23 rotates around the mounting shaft 22, causing the protrusion 231 at the lower front of the movable locking block 23 to separate from the flange of the upper box. Then, the handle 1 is lifted upward, and at the same time, the positioning part 32 also disengages from the positioning protrusion on the outside of the lower box, thereby opening the power box. This design is easy to operate and can efficiently control the locking and unlocking of the upper and lower boxes of the power box. The power box lock of this design can be installed with a connecting structure at both the front and rear ends of the power box to achieve locking and unlocking on both sides. After both sides are unlocked, the entire upper box can be removed from the lower box.

[0019] The handheld part 11 is tilted upwards and backwards towards the mounting arm 12, which facilitates operation by the handheld part 11.

[0020] The screw mounting hole 122 is a countersunk hole; the countersunk groove of the countersunk hole is located on the opposite side of the two mounting arms 12. The head of the first screw 1201 is located in the countersunk hole, and the tail passes through the screw mounting hole 122 and is threadedly connected to the upper box body.

[0021] The fixing part 31 is fixedly connected to the mounting block 121 by the second screw 3101, thereby fixing the positioning lock block 3 onto the mounting block 121.

[0022] The front end of the mounting block 121 is provided with a limiting protrusion 1211; the limiting protrusion 1211 is located on the opposite side of the two mounting blocks 121; the bottom surface 1211-1 of the limiting protrusion 1211 has an arc-shaped structure, and the left and right sides of the lower box are respectively provided with limiting blocks. When the handle 1 is pressed down and the upper box and the lower box are locked, the limiting protrusion 1211 and the limiting blocks do not contact each other. When the handle 1 is lifted and the upper box and the lower box are released, the bottom surface 1211-1 of the limiting protrusion 1211 contacts the limiting blocks to limit the position of the handle 1 after it is lifted.

[0023] The fixing member 21 is positioned with the hand-held part 11 by the positioning post 211 and is locked to the bottom of the hand-held part 11 by the third screw. The bottom of the hand-held part 11 has a positioning hole that cooperates with the positioning post 211. The fixing member 211 is positioned by cooperating with the positioning hole and then locked by the third screw, which improves the installation accuracy and stability of the fixing member 21.

[0024] The upper rear part of the movable locking block 23 is provided with a pressing plate 232 extending to the rear side. This setting makes it convenient for workers to control the movable locking block 23. When the pressing plate 232 is lifted manually, the movable locking block 23 can be controlled to rotate clockwise around the mounting shaft 22, separating the protrusion 231 from the bottom of the flange.

[0025] The bottom of the pressing plate 232 is provided with anti-slip texture 2321 to prevent slipping.

[0026] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A lock for the power supply box of an LED display screen enclosure, characterized in that: The device includes a handle, a movable locking assembly, and a positioning locking block. The handle has a U-shaped structure, including a hand-held portion and mounting arms connected to the front sides of both ends of the hand-held portion. The rear end of each mounting arm is connected to the hand-held portion, and the front end has an upwardly protruding mounting block. The front ends of the two mounting arms have horizontally arranged screw mounting holes, and a first screw is installed in each screw mounting hole. The positioning locking block includes a fixing part and a positioning part connected below the fixing part. The fixing part is fixedly connected to the mounting block, and the positioning part is hook-shaped. The movable locking assembly includes a fixing member, a mounting shaft, a movable locking block, and a torsion spring. The fixing member is fixed to the bottom of the hand-held portion. The movable locking block is rotatably connected to the bottom of the fixing member via the mounting shaft. The torsion spring is sleeved on the mounting shaft, and the pressure feet at both ends abut against the fixing member and the movable locking block, respectively. The bottom of the movable locking block has a forward-protruding ridge.

2. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The hand-held part curves upward and backward toward the mounting arm.

3. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The screw mounting hole is a countersunk hole; the countersunk groove of the countersunk hole is located on the opposite side of the two mounting arms.

4. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The fixing part is fixedly connected to the mounting block by a second screw.

5. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The front end of the mounting block is provided with a limiting protrusion; the limiting protrusion is located on the opposite side of the two mounting blocks; the bottom surface of the limiting protrusion is an arc-shaped structure.

6. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The fastener is positioned with the handheld part by a positioning post and is locked to the bottom of the handheld part by a third screw.

7. The LED display screen cabinet power supply box lock according to claim 1, characterized in that: The upper rear part of the movable locking block is provided with a pressing plate that extends to the rear side.

8. A power supply box lock for an LED display screen enclosure according to claim 7, characterized in that: The bottom of the pressing plate is provided with anti-slip texture.

Images