Power supply box and display screen

Abstract

The utility model provides a power box and a display screen, belonging to the technical field of display screens, the power box comprises a main body part and a cover body part, the main body part is provided with a locking pin; pull rings are provided at both ends of the cover body part, and hooks are provided at both ends of the pull ring, and the hooks have a locked state and a unhooked state during the rotation of the pull ring, the pull ring can be used to control the hook to buckle the locking pin of the main body part to achieve installation and fixation of the cover body part on the main body part, and the pull ring can also be used to control the hook to separate from the locking pin to achieve disassembly of the cover body part, which can ensure the installation stability of the cover body part and facilitate disassembly, and only needs to control the rotation of the two pull rings at the same time to achieve quick disassembly, which is convenient for maintenance and repair.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screens, and in particular relates to a power box and a display screen. Background Art

[0002] In daily use, LED display screens need to be inspected and maintained, or control cards need to be connected or replaced, etc., so the back cover of the display screen needs to be disassembled for easy operation. In the related prior art, the above operations of the display screen are mainly divided into two forms, the first is to disassemble the back plate of the display screen, and the second is to disassemble the power box cover on the back of the display screen. Both operation forms require the removal of multiple screws to realize the disassembly of the back plate or the power box cover, and the disassembly and assembly process is relatively limited. Utility Model Content

[0003] The utility model aims to solve at least one of the above-mentioned technical problems existing in the prior art. To this end, the utility model provides a power supply box, which is convenient for disassembly and maintenance, and is easy to install, and can improve the efficiency of maintenance and repair.

[0004] The utility model also provides a display screen using the power box.

[0005] The power box according to the first aspect of the present invention comprises a main body part and a cover body part, wherein locking pins are provided on both sides of the main body part; pull rings are provided at both ends of the cover body part, and both ends of the pull ring are rotatably connected to both sides of the cover body part, and hooks are provided at both ends of the pull ring, and the hooks have a locked state and an unhooked state during the rotation of the pull ring. In the locked state, the hook engages with the locking pin, thereby fixing the cover body part to the main body part, and in the unhooked state, the hook is separated from the locking pin, thereby allowing the cover body part to be removed from the main body part.

[0006] The power box according to the embodiment of the utility model has at least the following beneficial effects: when adopting the power box of the utility model, two pull rings are arranged on the cover part, and hooks are arranged on both ends of each pull ring. The pull ring can be used to rotate to control the hook to buckle with the locking pin of the main body part, so as to realize the installation and fixation of the cover part on the main body part, and the pull ring can be used to rotate to control the hook and the locking pin to separate, so as to realize the disassembly of the cover part, which can ensure the installation stability of the cover part and facilitate disassembly. It only needs to control the rotation of the two pull rings at the same time to realize quick disassembly, which is convenient for maintenance and repair.

[0007] According to some embodiments of the utility model, the hook is rotatably connected to the pull ring, and the pull ring is provided with a first limiting portion and a second limiting portion at both ends of the hook's rotation direction, respectively, for limiting the rotation range of the hook by the first limiting portion and the second limiting portion.

[0008] According to some embodiments of the utility model, the hook is a plastic structure, and the hook end of the hook has an interference area with the locking pin during the process of rotating with the pull ring, and the interference area can be eliminated by relying on the elastic deformation of the hook under the action of external force.

[0009] According to some embodiments of the present utility model, both the first limiting portion and the second limiting portion maintain a distance from the rotation center of the hook.

[0010] According to some embodiments of the utility model, the second limiting portion is located on the side of the hook away from the pull ring, the cover body is partially protruded with a third limiting portion, the third limiting portion is located on the path of the second limiting portion rotating with the pull ring, and is used to abut the second limiting portion when the hook reaches the locked state.

[0011] According to some embodiments of the present invention, the third limiting portion is formed by a screw disposed on the outside of the cover portion.

[0012] According to some embodiments of the present utility model, there is damping between the hook and the pull ring.

[0013] According to some embodiments of the present utility model, there is damping between the pull ring and the cover body portion.

[0014] According to some embodiments of the utility model, the end of the pull ring has a bending section, and is rotatably connected to the side of the cover body part at the end of the bending section, so that in the unhooked state, the pull ring is located on the back of the cover body part, and in the locked state, the pull ring is located on the outside of the cover body part.

[0015] The display screen according to the embodiment of the second aspect of the utility model comprises a screen body and a power box of any of the above structures, wherein the main body is formed on the back of the screen body, and the cover is buckled to the back of the main body through the two pull rings.

[0016] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 A schematic diagram of the position of the pull ring in the locked state;

[0019] Figure 2 A schematic diagram of the position of the pull ring in the unhooked state;

[0020] Figure 3 This is a schematic diagram of the overall structure of the display screen in the utility model;

[0021] Figure 4 A schematic diagram of the structure of a pull ring. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] In daily use, LED display screens need to be inspected and maintained, or control cards need to be connected or replaced, etc., so the back cover of the display screen needs to be disassembled for easy operation. In the related prior art, the above operations of the display screen are mainly divided into two forms, the first is to disassemble the back plate of the display screen, and the second is to disassemble the power box cover on the back of the display screen. Both operation forms require the removal of multiple screws to realize the disassembly of the back plate or the power box cover, and the disassembly and assembly process is relatively limited.

[0027] To this end, the utility model provides a power box, which is convenient for disassembly and maintenance, and is easy to install, thereby improving the efficiency of maintenance and repair.

[0028] Reference Figures 1 to 4As shown, a power box of an embodiment of the utility model includes a main body 202 and a cover body 201, wherein locking pins 304 are provided on both sides of the main body 202. Pull rings 300 are provided at both ends of the cover body 201, and both ends of the pull ring 300 are rotatably connected to both sides of the cover body 201. Hooks 301 are provided at both ends of the pull ring 300, and the hooks 301 have a locked state and an unhooked state during the rotation of the pull ring 300. In the locked state, the hook 301 engages the locking pin 304, thereby fixing the cover body 201 to the main body 202. In the unhooked state, the hook 301 is separated from the locking pin 304, so that the cover body 201 can be removed from the main body 202. It can be understood that since the power box has a split structure and an integrated structure, the split structure is a structure in which the power box is subsequently assembled on the display screen, and the integrated structure is a structure in which the power box is formed on the back plate or back frame of the display screen. The main body 202 in this embodiment includes two structural forms. In the split structure, it is the box body of the power box, and in the integrated structure, it is the box body on the back of the display screen.

[0029] With the power box of the utility model, two pull rings 300 are provided on the cover part 201, and hooks 301 are provided at both ends of each pull ring 300. The pull ring 300 can be rotated to control the hook 301 to buckle with the locking pin 304 of the main body part 202, so that the cover part 201 can be installed and fixed on the main body part 202. The pull ring 300 can also be rotated to control the hook 301 to separate from the locking pin 304, so that the cover part 201 can be disassembled. The installation stability of the cover part 201 can be ensured, and the disassembly is convenient. It only needs to control the rotation of the two pull rings 300 at the same time to realize quick disassembly, which is convenient for maintenance and repair.

[0030] In order to ensure a secure installation, a reset structure may be provided for the pull ring 300 so that it is in a locked state under normal conditions.

[0031] However, in order to further ensure the stability in the locked state, in some embodiments of the present utility model, the hook 301 is a plastic structure, and the end of the hook portion of the hook 301 has an interference area with the lock pin 304 during the process of rotating with the pull ring 300, and the interference area can be eliminated by the elastic deformation of the hook 301 under the action of external force. The structural setting of this embodiment, that is, there is interference between the hook 301 and the lock pin 304, so that when the external force is small, the hook 301 will abut against the limit when it rotates to the position of the lock pin 304, and cannot enter the locked state from the unhooked state. When the external force is greater than a certain value, the hook 301 will produce a slight deformation based on the material characteristics of the hook 301, so that it can buckle with the lock pin 304 and enter the locked state. And in this state, since there is interference between the hook portion of the hook 301 and the lock pin 304, it cannot be naturally disengaged, and the installation is reliable. When disassembling, it is necessary to manually apply external force to overcome the interference to achieve disassembly.

[0032] Reference Figure 4 In some embodiments of the utility model, the hook 301 is rotatably connected to the pull ring 300, and the pull ring 300 is provided with a first limit portion 302 and a second limit portion 303 at both ends of the rotation direction of the hook 301, respectively, for limiting the rotation range of the hook 301 through the first limit portion 302 and the second limit portion 303. With the structural arrangement of this embodiment, the pull ring 300 abuts against the hook 301 through the first limit portion 302 and the second limit portion 303, thereby driving the hook 301 to rotate and realize the state switching. At the same time, since the first limiting portion 302 and the second limiting portion 303 do not completely limit the hook 301, that is, the hook 301 has a certain rotation range between the first limiting portion 302 and the second limiting portion 303, the pull ring 300 can have a certain adjustment stroke, that is, after the pull ring 300 rotates a certain angle, the first limiting portion 302 or the second limiting portion 303 will abut the hook 301, and then if the pull ring 300 continues to rotate, it will act on the hook 301. The free adjustment stroke is used to facilitate the holding of the pull ring 300. For example, in the initial state, the pull ring 300 may be attached to the display screen or the power box. The free adjustment stroke can be used to make the pull ring 300 easily leave the display screen or the power box, so that the staff can hold the pull ring 300 and then control the rotation.

[0033] Reference Figure 4In some embodiments of the present invention, the first limiting part 302 and the second limiting part 303 are both spaced apart from the rotation center of the hook 301. It is understandable that, since the present embodiment utilizes the first limiting part 302 and the second limiting part 303 to drive the hook 301 to rotate, the greater the distance between the two and the rotation center of the hook 301, the more labor is saved. This embodiment is based on this motivation, and by maintaining the distance, the hook 301 is conveniently driven to rotate, so as to overcome the force during interference and drive the hook portion of the hook 301 to deform. The specific distance can be flexibly set according to the actual size and the structural strength of the hook 301 and the pull ring 300.

[0034] In some embodiments of the utility model, the second limiting portion 303 is located on the side of the hook 301 away from the pull ring 300, and the cover body 201 is protrudingly provided with a third limiting portion, which is located on the path of the second limiting portion 303 rotating with the pull ring 300, and is used to abut the second limiting portion 303 when the hook 301 reaches the locked state. With the structural setting of this embodiment, when the staff controls the pull ring 300 to rotate until the hook 301 buckles the lock pin 304, the second limiting portion 303 abuts the third limiting portion, which can effectively reduce the interaction force between the hook 301 and the lock pin 304, avoid damage to the lock pin 304 and the hook 301 during the disassembly process, and help ensure the service life of the power box.

[0035] In some embodiments of the present invention, the third position-limiting portion is formed by a screw disposed outside the cover portion 201. The third position-limiting portion is made of a screw, which is low in cost and easy to replace. At the same time, according to the damage of the hook 301 and the locking pin 304, screws with different head sizes can be replaced to match them.

[0036] In some embodiments of the present invention, there is a damping between the hook 301 and the pull ring 300. The damping is used to achieve relative fixation of the hook 301 and the pull ring 300, and prevent the hook 301 from freely rotating relative to the pull ring 300. It can be understood that the damping can be achieved by a damping structure such as a rubber pad, or by a certain interference.

[0037] Similarly, in some embodiments of the present invention, there is a damping between the pull ring 300 and the cover part 201 to achieve relative fixation of the pull ring 300 and the cover part 201 and prevent the pull ring 300 from freely rotating relative to the cover part 201.

[0038] Reference Figure 4In some embodiments of the present invention, the end of the pull ring 300 has a bending section 305, and the end of the bending section 305 is rotated to connect the side of the cover part 201, so that in the unhooked state, the pull ring 300 is located on the back of the cover part 201, and in the locked state, the pull ring 300 is located on the outside of the cover part 201. With the structural setting of this embodiment, the pull ring 300 is suspended on the outside of the cover part 201 by bending when the hook 301 is in the locked state, and keeps a position close to the back of the cover part 201. When the hook 301 is in the unhooked state, it rotates toward the back of the cover part 201 and is close to the back of the cover part 201. In this way, when unlocking is required, the staff only needs to control the pull ring 300 to apply force in the direction away from the display screen, and in the completely unhooked state, the pull ring 300 is close to the back of the cover part 201, which will not cause obstruction, and the folding effect is good.

[0039] In addition, the present invention also provides a display screen, comprising a screen body 100 and a power box 200 of any of the above structures, wherein a main body 202 is formed on the back of the screen body 100, and a cover body 201 is buckled on the back of the main body 202 through two pull rings 300. That is, the main body 202 is an integrated structure.

[0040] Reference Figures 1 to 4In this embodiment, the display screen includes a screen body 100 and a power box, wherein the screen body 100 includes a back frame and a plurality of display modules installed at the front end of the back frame. The main body 202 of the power box is formed in the middle position of the back frame, and the four sides of the main body 202 extend backward to form a power side wall, and the upper and lower ends of the power side walls on the left and right sides are protruding outward to form a locking pin 304. The power box has a cover body part 201, and the cover body part 201 includes a cover plate and a cover body side wall formed around the cover plate, and the contour of the cover body side wall matches the power side wall. A pull ring 300 is rotatably provided at the upper and lower ends of the cover body side wall, and the two ends of the pull ring 300 are connected to the outer sides of the left and right cover body side walls. A certain interference is set between the connection position of the pull ring 300 and the cover body side wall to achieve damping fit, so that the pull ring 300 can be relatively fixed with the cover body side wall when it is rotated to any position. The hook 301 is rotatably arranged on the outer side of the pull ring 300, and the hook 301 has a hook portion that matches the lock pin 304. The rotation center of the hook 301 coincides with the rotation center of the pull ring 300 to simplify the installation structure. And damping is achieved through the same rotating shaft structure, so that the hook 301 can remain relatively fixed with the pull ring 300 at any rotation position. The end of the hook portion of the hook 301 has a certain tilted arc, so that when the hook 301 rotates with the pull ring 300 to abut the lock pin 304, it cannot buckle the lock pin 304, and the hook 301 is made of plastic, so that when the external force reaches a certain value, it can produce elastic deformation when abutting and forcibly buckle the lock pin 304. For easy operation, the pull ring 300 is provided with a first limiting portion 302 and a second limiting portion 303 on both sides of the hook 301, respectively, for abutting the hook 301 through the first limiting portion 302 and the second limiting portion 303 to apply force. A bending section 305 is provided at the connection between the pull ring 300 and the side wall of the cover body, so that a certain angle is formed between the main part 202 of the pull ring 300 and the bending part, so that when the hook 301 is buckled with the locking pin 304, the main part 202 is suspended outside the upper and lower ends of the cover body part 201, and when the hook 301 is completely separated from the locking pin 304, the main part 202 can fit the cover plate of the cover body part 201.

[0041] When maintenance is required, the pull ring 300 only needs to be pushed backward to drive the hook 301 to disengage and the cover part 201 can be disassembled. After maintenance is completed, the pull ring 300 only needs to be pushed to both sides to drive the hook 301 to re-engage the lock pin 304. The installation and disassembly are convenient, the structure is simple, and the reliability is strong.

[0042] The present invention is described in detail above in conjunction with the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A power supply box, characterized in that: include: A main body part, with locking pins provided on both sides of the main body part; A cover body part, with pull rings at both ends of the cover body part, and the two ends of the pull ring are rotatably connected to the two sides of the cover body part, and hooks are provided at both ends of the pull ring, and the hooks have a locked state and an unhooked state during the rotation of the pull ring. In the locked state, the hook engages with the locking pin to fix the cover body part to the main body part, and in the unhooked state, the hook is separated from the locking pin, so that the cover body part can be removed from the main body part.

2. The power supply box according to claim 1, characterized in that: The hook is rotatably connected to the pull ring, and the pull ring is provided with a first limiting portion and a second limiting portion at both ends of the hook in the rotation direction, respectively, for limiting the rotation range of the hook by the first limiting portion and the second limiting portion.

3. The power supply box according to claim 2, characterized in that: The hook is a plastic structure, and an interference area is formed between the hook end of the hook and the locking pin during the process of rotating with the pull ring, and the interference area can be eliminated by elastic deformation of the hook under the action of external force.

4. The power supply box according to claim 2, characterized in that: The first limiting portion and the second limiting portion both maintain a distance from the rotation center of the hook.

5. The power supply box according to claim 2, characterized in that: The second limiting portion is located on a side of the hook away from the pull ring, and the cover body is partially protruded with a third limiting portion, which is located on a path where the second limiting portion rotates with the pull ring, and is used to abut against the second limiting portion when the hook reaches the locked state.

6. The power supply box according to claim 5, characterized in that: The third limiting portion is formed by a screw arranged on the outside of the cover body.

7. The power supply box according to claim 2, characterized in that: There is damping between the hook and the pull ring.

8. The power supply box according to claim 1, characterized in that: There is damping between the pull ring and the cover body.

9. The power supply box according to claim 1, characterized in that: The end of the pull ring has a bending section, and is rotatably connected to the side of the cover body at the end of the bending section, so that in the unhooked state, the pull ring is located on the back of the cover body, and in the locked state, the pull ring is located on the outside of the cover body.

10. A display screen, characterized in that: It comprises a screen body and a power box as described in any one of claims 1 to 9, wherein the main body is formed on the back side of the screen body, and the cover is buckled to the back side of the main body via two pull rings.

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