CN210106305U

CN210106305U - Plate clamping assembly, power supply box and LED display screen

Info

Publication number: CN210106305U
Application number: CN201920784831.0U
Authority: CN
Inventors: 熊青松; 张文波; 何昆鹏; 吴振志; 吴涵渠
Original assignee: Shenzhen Aoto Electronics Co Ltd
Current assignee: Shenzhen Aoto Electronics Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-02-21
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to a plate clamping component, a power supply box and an LED display screen, wherein the plate clamping component comprises a clamping piece and a connecting piece; the clamping piece comprises a main body part and two supporting plates, the supporting plates are fixedly connected with the main body part, a clamping groove is formed between the two supporting plates, the main body part is provided with a connecting through hole, and the side wall of the connecting through hole comprises at least one plane; the connecting piece comprises an abutting section and a fixing part, the side surface of the abutting section comprises at least one plane, and the abutting section is fixedly connected with the fixing part; the abutting section is arranged in the connecting through hole, and the connecting piece is rotatably fixed at a preset position through the fixing part; the two ends of the plate clamping assembly are provided with operating parts; the operation part is rotated to drive the clamping piece to rotate. The connecting piece can be rotated in two directions in the past and back, and then the clamping piece is driven to rotate together, the switching of two states of clamping piece centre gripping plate and release plate is realized to maintain the operation around realizing the plate, promote maintenance efficiency.

Description

Plate clamping assembly, power supply box and LED display screen

Technical Field

The utility model relates to a LED shows the field, especially relates to a board centre gripping subassembly, power pack and LED display screen.

Background

The LED has the characteristics of low energy consumption, high brightness, bright color, environmental protection and the like, and is widely applied to more and more scenes such as outdoor display, monitoring centers, advertisement/media display, stages and the like. The requirement for convenient maintenance of the LED display screen is higher and higher, and the requirement for convenient maintenance of the LED display screen comprises maintenance of an LED display module and maintenance of a power supply box. Be provided with plates such as HUB board, power strip in the power pack, generally adopt the shell fragment to compress tightly the plate at present. However, the existing spring plate mainly depends on the elasticity of the spring plate to press the plate, and cannot bear larger pressure; when the stress is applied, the elastic sheet is easy to deform, so that the pressing effect on the plate is unstable. Meanwhile, the plate is pressed or disassembled, and the elastic sheet needs to be stirred by hands or other tools; whereas the spring is generally provided on only one face of the plate. Therefore, the elastic sheet can be operated only from one surface of the plate, and double-sided disassembly and maintenance of the plate cannot be realized.

SUMMERY OF THE UTILITY MODEL

Therefore, a board clamping assembly, a power supply box and an LED display screen are provided for solving the problems that the existing power supply box uses an elastic sheet to press a board, the pressing effect is unstable, the front and back cannot be detached, and the operation is inconvenient.

The utility model provides a plate clamping component, which comprises a clamping piece and a connecting piece;

the clamping piece comprises a main body part and two supporting plates, the supporting plates are fixedly connected with the main body part, a clamping groove is formed between the two supporting plates, the main body part is provided with a connecting through hole, and the side wall of the connecting through hole comprises at least one plane;

the connecting piece comprises an abutting section and a fixing part, the side surface of the abutting section comprises at least one plane, and the abutting section is fixedly connected with the fixing part;

the abutting section is arranged in the connecting through hole, and the connecting piece is rotatably fixed at a preset position through the fixing part;

operating components are arranged at two ends of the clamping piece or the connecting piece, or two ends of the connecting piece and the clamping piece which are far away from each other; and rotating the operating part to drive the clamping piece to rotate.

In some embodiments, auxiliary protrusions are disposed on the side wall of the supporting plate facing the clamping groove.

In some embodiments, the side wall of the support plate is provided with a slope, and the opening height of the clamping groove is greater than the height of the center of the clamping groove.

In some embodiments, the two ends of the clamping member are provided with operating members, the operating members are ribs, the ribs are fixedly connected with at least one of the main body part and the support plate, and the ribs are arranged on the sides of the two support plates far away from each other.

In some embodiments, both ends of the connecting member are provided with an operating part, and the operating part is one of a groove, a protrusion, and a rotation auxiliary member detachably connected.

In some embodiments, the clamping device further comprises a locking nut, the fixing part is a threaded column, and the locking nut is matched with the fixing part to fix the clamping piece.

In some embodiments, the clamping device further comprises a fastening elastic sheet, a mounting cap is arranged at the free end of the abutting section, the operating component is arranged on the mounting cap, and the cross section of the mounting cap is larger than that of the free end of the abutting section;

the fastening elastic sheet is arranged between the mounting cap and the main body part and/or is abutted against the locking nut.

The utility model also provides a power supply box, which comprises a box body frame, a box cover, a plate part and a plate clamping component, wherein a containing cavity is arranged in the box body frame, and the plate part is arranged in the containing cavity; the box cover is connected with the box body frame and can cover the box body frame;

the plate clamping assembly is any one of the plate clamping assemblies, and comprises a clamping piece and a connecting piece, wherein the clamping piece is rotatably and fixedly connected with the box body frame through the connecting piece;

the plate part is clamped and fixed by at least one plate clamping assembly.

In some embodiments, an auxiliary connection assembly is further included, the auxiliary connection assembly including an auxiliary connection member, a frame connection member, and a panel connection member;

the auxiliary connecting piece is provided with at least one frame connecting port and at least one plate connecting port, the frame connecting piece fixedly connects the auxiliary connecting piece with the box body frame through the frame connecting port, and an avoiding area is arranged from the position, corresponding to the frame connecting port, on the plate part to the edge of the plate part; and the plate connecting piece fixedly connects the auxiliary connecting piece with the plate part through the plate connecting port.

The utility model discloses another embodiment still provides a LED display screen, including box frame, power pack and at least one LED display module assembly, the LED display module assembly is installed on box frame's the display surface, the power pack with box frame fixed connection, the power pack be aforementioned arbitrary the power pack.

The application provides a plate centre gripping subassembly sets up two backup pads on the holder and forms the centre gripping groove to provide two-sided support to the plate, promote the centre gripping steadiness. The butt section of connecting piece and the lateral wall of connect the through-hole on the holder are provided with and support each other and hold the complex plane, rotate the connecting piece, can drive the holder and rotate together. All set up operating means at two terminal surfaces of connecting piece, can realize two directions rotation connecting piece in the past back, and then drive the holder and rotate together, realize the switching of holder centre gripping plate and release plate two kinds of states to in the front and back maintenance operation of realization plate promotes maintenance efficiency.

Drawings

Fig. 1 is a schematic structural view of a plate clamping assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connecting member according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a clamping member according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the clamping member at another viewing angle according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a plate clamping assembly according to another embodiment of the present invention;

fig. 6 is a schematic structural diagram of a power supply box according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of the power pack of FIG. 6 at position A;

fig. 8 is a schematic structural diagram of an LED display screen according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an LED display screen according to an embodiment of the present invention at another viewing angle

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-4, one embodiment of the present invention provides a panel clamping assembly 10, comprising a clamping member 100 and a connecting member 200,

the clamping piece 100 comprises a main body part 101 and two supporting plates 102, the two supporting plates 102 are respectively and fixedly connected with the main body part 101, a clamping groove is formed between the two supporting plates 102, the main body part 101 is provided with a connecting through hole 103, and the side wall of the connecting through hole 103 comprises at least one plane;

the connecting piece 200 comprises an abutting section 201 and a fixing part 202, the side surface of the abutting section 201 comprises at least one plane, and the abutting section 201 is fixedly connected with the fixing part 202;

the abutting section 201 is arranged in the connecting through hole 103, and the connecting piece 200 is rotatably fixed at a preset position through the fixing part 202;

two ends of the clamping piece 100 or the connecting piece 200, or two ends of the connecting piece 200 and the clamping piece 100 which are far away from each other are provided with operating components;

the operation part is rotated to drive the clamping piece 100 to rotate, so that the clamping groove clamps the plate and releases the plate to be switched.

As shown in fig. 3 and 4, the clamp 100 includes a main body 101 and two support plates 102 provided on the main body 101. The two support plates 102 are oppositely disposed on the outer sidewall of the body portion 101 with a predetermined interval between the two support plates 102 to form a clamping groove. When the plate is clamped in the clamping groove, double-sided clamping can be provided for the plate placed in the clamping groove, and clamping stability is improved. The main body 101 is provided with a connecting through hole 103, and the connecting member 200 passes through the connecting through hole 103 to rotatably fix the holder 100 at a mounting position, such as a power supply box.

As shown in fig. 1 and 3, the sidewall of the connection via 103 includes at least one flat surface. Accordingly, at least one flat surface is formed on the side surface of the abutting section 201 of the connecting member 200, which corresponds to the flat surface formed on the side wall of the connecting through hole 103. The plane side surface of the abutting section 201 abuts against the plane of the side wall of the connecting through hole 103, and when the connecting piece 200 is rotated, the plane side surface of the abutting section 201 and the plane of the side wall of the connecting through hole 103 are mutually abutted and limited, so that the clamping piece 100 is driven to rotate together. In the embodiment shown in fig. 1, the connecting through holes 103 are adapted to the shape of the abutment section 201, each having two substantially identical parallel planes and two substantially identical curved surfaces. It is understood that the shapes of the abutting section 201 and the connecting through hole 103 may not be completely the same, as long as the plane where the abutting section 201 abuts against the connecting through hole 103 can be ensured, and the mutual rotation between the connecting member 200 and the clamping member 100 does not occur.

And a fixing portion 202 for rotatably fixing the connecting member 200 at a predetermined position. For example, when the board clamping assembly 10 is used to fix a PCB board in a power box, the connecting member 200 is rotatably fixed at a predetermined position on the power box by the fixing portion 202. The fixing portion 202 may be a threaded post, a snap, etc. as long as the rotation of the connector 200 is not affected when the connector 200 is fixed. In the embodiment shown in fig. 1 and 2, the fixing portion 202 is a threaded post having an external thread disposed thereon.

At both ends of the panel clamping assembly 10, operation parts are provided to facilitate operations from both directions, and particularly, when the clamping grooves clamp the panel, it is possible to perform operations on both sides of the panel, i.e., releasing the panel or clamping the panel. The operation member may be provided at both ends of the clamping member 100 or the connecting member 200, or at both ends of the connecting member 200 and the clamping member 100 which are distant from each other.

By rotating the operation member, the rotation operation of the connector 200 or the holder 100 can be performed. The turning operation of the operating member may be performed directly by hand or by means of a corresponding tool. The operating member may be a groove, a protrusion, a rib, a detachably connected rotation aid or a side having at least one flat surface. The grooves and protrusions, which may be in the shape of a straight line, a cross, a triangle, or other shapes, may be disposed on the end surfaces of the clamping member 100 and the connecting member 200, as long as they facilitate the contact of the fingers of a tool or a user. The detachably connected rotary auxiliary part can be a fixed sleeve with an operation lug/stripe, the fixed sleeve is provided with a matching groove matched with the free end face of the connecting piece, and the matching groove can be circular or polygonal.

In the embodiment shown in fig. 2, the two ends of the connector 200 are provided with operating members, which are in-line grooves 205. Specifically, a sub-groove 205 is provided on an end surface of the abutting section 201 and the fixing section 202 away from each other. It is understood that the operating members provided on the free end surfaces of the abutment section 201 and the fixing section 202 may have the same configuration or different configurations. Through set up operating means on the terminal surface of keeping away from each other of butt section 201 and fixed part 202, can follow two directions, realize the rotation operation to connecting piece 200, and then drive the rotation of holder 100 to switch between centre gripping plate and release plate two kinds of states, satisfy the demand that the plate can be maintained around simultaneously.

In the embodiment shown in fig. 3 and 4, the operating members are provided at both ends of the clamping member 100, the operating members are ribs 104, the ribs 104 are fixedly connected to at least one of the main body 101 and the support plates 102, and the ribs 104 are provided at the sides of the two support plates 102 away from each other.

One end surface of the rib 104 may be parallel to the end surface of the body 101; the other end surface of the rib 104 may abut the support plate 102. The protruding ribs 104 may be disposed on both end surfaces of the main body 101, so as to provide a front-back symmetrical design of the clamping member 100, which is convenient for use.

Through setting up bead 104, can provide the handheld position of manual rotation holder 100, convenient manual operation realizes the switching of the two kinds of states of holder 100 centre gripping panel and release panel.

It is understood that the operating parts may be provided at both ends of the clamping member 100 and the connecting member 200 at the same time. The specific structure of the operating parts at both ends of the clamping member 100 and the specific structure of the operating parts at both ends of the connecting member 200 may be different. In the embodiment shown in fig. 1-4, the grip 100 is provided with an operating member, a straight groove 205, at both ends, and the connector 200 is provided with an operating member, a rib 104, at both ends.

It will be appreciated that the operating members may be provided on the clamping member 100 and the connecting member 200, respectively, at opposite ends thereof remote from each other. An operating member may be provided at one end of the clamping member 100, while an operating member is provided at the other end of the connecting member 200, which is relatively remote therefrom. For example, an operating part, i.e., a straight groove 205, may be provided at an end of the abutting section 201 away from the fixing section 202, and an operating part, i.e., a rib 104, may be provided at an end of the clamping member 100 away from the abutting section 201. So, all establish in the both sides of centre gripping groove and be provided with operating means, can realize holder 100's rotation through rotating operating means to switch between centre gripping plate and release plate two kinds of states, satisfy the demand that the plate can be maintained around simultaneously.

In the plate clamping assembly 10 provided in this embodiment, two supporting plates 102 are disposed on the clamping member 100 to form a clamping groove, so as to provide a double-sided support for the plate, and improve the clamping stability. The abutting section 201 of the connecting piece 200 and the side wall of the connecting through hole 103 on the clamping piece 100 are provided with planes which are abutted to each other and matched, and the clamping piece 100 can be driven to rotate together by rotating the connecting piece 200. All set up operating means at the both ends of plate centre gripping subassembly 10, can realize rotating holder 100 in two directions in the past back, realize the switching of holder 100 centre gripping plate and release plate two kinds of states to in the front and back maintenance operation of realization plate promotes maintenance efficiency.

In some embodiments, as shown in fig. 3 and 4, the side wall of the supporting plate 102 facing the clamping groove is provided with an auxiliary protruding point 106 to improve the clamping degree of the clamping groove to the plate, and improve the stability of clamping and fixing the plate. The auxiliary bump 106 may be made of an elastic material or a non-elastic material. Preferably, the auxiliary protruding points 106 are made of an elastic material, so that a certain buffering space can be provided while the clamping force on the plate is improved.

In some embodiments, as shown in fig. 3 and 4, the side wall of the support plate 102 is provided with a slope 105, and the opening height of the clamping groove is greater than the height of the center of the clamping groove. By providing the inclined surface 105 on the side wall of the support plate 102, the clamping groove can form a trumpet-shaped opening, and when the clamping member 100 is rotated to clamp the plate, the plate can be conveniently inserted into the clamping groove without worrying about the problem that the plate cannot be inserted into the clamping groove due to the difference in the installation heights of the plates.

In some embodiments, as shown in fig. 5, securing portion 202 is a threaded post, and plate clamp assembly may further include a clamp nut 302, wherein securing portion 202 threadably mates with clamp nut 302 to secure clamp 100. When the fixing portion 202 is a threaded post, to fix the clamping member 100, a threaded hole needs to be provided corresponding to the mounting position. However, when the installation position is thin and it is inconvenient to provide a threaded hole, a fastening nut 302 may be additionally provided to fix the clamping member 100. Meanwhile, after the fastening nut 302 is arranged, when the clamping piece 100 is rotated, the installation position is not provided with a threaded hole, the clamping piece 100 cannot generate displacement on height relative to the installation position, the clamping height of the clamping force on the plate cannot be changed, and the plate is clamped more stably.

Further, as shown in fig. 5, the panel clamping assembly may further include a fastening elastic sheet 301, and the fastening elastic sheet 301 abuts against the fastening nut 302. By arranging the fastening elastic sheet 301, the clamping piece 100 can be fixed, and meanwhile, the clamping piece 100 can be allowed to have a small moving space so as to compensate the influence of errors of machining, installation and the like.

Further, as shown in fig. 2 and 5, a mounting cap 206 is provided on the free end of the abutting section 201, and the operating member is provided on the mounting cap 206, and the cross section of the mounting cap 206 is larger than that of the free end of the abutting section 201. By providing the mounting cap 206, the operating components on the abutment section 201 can be operated conveniently. A fastening elastic sheet 301 may be further disposed between the mounting cap 206 and the end surface of the main body 101 of the clip 100, so as to allow the clip 100 to have a small movement space while fixing the clip 100, so as to compensate for errors caused by machining, mounting, and the like.

In the plate clamping assembly 10 provided in this embodiment, two supporting plates 102 are disposed on the clamping member 100 to form a clamping groove, so as to provide a double-sided support for the plate, and improve the clamping stability. The abutting section 201 of the connecting piece 200 and the side wall of the connecting through hole 103 on the clamping piece 100 are provided with planes which are abutted to each other and matched, and the clamping piece 100 can be driven to rotate together by rotating the connecting piece 200. All set up operating means at two terminal surfaces of connecting piece 200, can realize two directions rotation connecting piece in the past back, and then drive holder 100 and rotate together, realize the switching of holder 100 centre gripping plate and release plate two kinds of states to in the front and back maintenance operation of realization plate, promote maintenance efficiency.

An embodiment of the present invention further provides a power supply box 30, as shown in fig. 6 and 7, including a box body frame 310, a box cover (not shown), a plate member 320, and a plate clamping assembly 330; an accommodating cavity is formed in the box body frame 310, and the plate part 320 is arranged in the accommodating cavity; the box cover is connected with the box body frame 310 and can be covered on the box body frame 310;

the plate clamping assembly 330 is a plate clamping assembly described in any one of the previous embodiments, and includes a clamping member 331 and a connecting member 332, wherein the clamping member 331 is rotatably and fixedly connected with the box frame 310 through the connecting member 332;

panel member 320 is held in place by at least one panel clamp assembly 330.

The specific structure and operation of the clamping member 331 and the connecting member 332 can be seen from the description of the clamping member 100 and the connecting member 200 in the previous embodiments.

The clamping member 331 is rotatably and fixedly connected to the cartridge frame 310 by a connecting member 332. The box frame 310 may be provided with a fitting lug 311, and the panel clamping assembly 330 may be rotatably and fixedly connected to the fitting lug 311.

The board part 320 may be a PCB circuit board, or other functional boards (e.g., a support board, a heat dissipation board, an EMC-related board, etc.). Panel member 320 is held in place by at least one panel clamp assembly 330. In some embodiments, the plurality of plate clamping assemblies 330 are used in the power supply box 30 to fix the plate member 320 and the box frame 310 together by clamping.

In the power pack that this embodiment provided, set up two backup pads on the holder in the plate centre gripping subassembly and form the centre gripping groove to provide two-sided support, promote the centre gripping steadiness to plate part spare part. The butt section of connecting piece and be provided with on the lateral wall of the connect the through-hole on the holder and support each other and hold the complex plane, rotate the connecting piece, can drive the holder and rotate together, realize the holder at centre gripping plate part and release plate part two states between the switching. All set up operating means at two terminal surfaces of connecting piece, can realize two directions rotation connecting piece in the past back, and then drive the holder and rotate together, realize the switching of holder centre gripping plate part and release plate part two kinds of states to in the front and back maintenance operation of realizing plate part promotes the maintenance efficiency of power pack.

In some embodiments, as shown in fig. 6 and 7, the power supply box 30 further includes an auxiliary connection assembly 340, which includes an auxiliary connection member 341, a frame connection member 341, and a plate connection member 342; the auxiliary connector 341 has at least one frame connector and at least one plate connector, the frame connector 341 connects the auxiliary connector 341 with the box frame 310 through a frame connector, and the plate member 320 has an avoiding region 322a from the position corresponding to the frame connector to the edge of the plate member 320; plate connection member 342 fixedly connects auxiliary connection member 341 to plate member 320 via a plate connection port.

The auxiliary connecting piece is provided with a frame connecting port and a plate connecting port which are mutually spaced at a certain distance, and an avoiding area is arranged from the position corresponding to the frame connecting port to the edge of the plate part. The plate connecting piece is fixedly connected with the auxiliary connecting piece and the plate part through the plate connecting port; the frame connecting piece passes through the frame connector, and fixed connection auxiliary connecting piece and box body frame realize the fixed connection between plate part and the box body frame, promote the fixed steadiness of plate part.

On one face, the connection between the auxiliary connector 341 and the box body frame 310 can be released by detaching the frame connector, and the plate member is detached from the box body frame; on the other face, the plate part and the auxiliary connecting part can be separated by disassembling the plate connecting part, and the plate part can be moved out from the avoiding area between the auxiliary connecting part and the box body frame to finish the disassembly. Therefore, the auxiliary connecting assembly 340 can be used for fixing and detaching the panel component 320 from the front surface and the rear surface. By using the auxiliary connection assembly 340 in combination with the panel clamping assembly 330, the stability of fixing the panel member 320 is improved while the front and rear maintenance of the panel member 320 is ensured.

The utility model discloses another embodiment still provides a LED display screen 70, as shown in fig. 8-9, including box frame 7400, power pack 7300 and at least one LED display module (not shown in the figure), LED display module installs on box frame 7400's display surface, power pack 7300 and box frame 7400 fixed connection, power pack 7300 can be any of the power pack in the preceding embodiment.

In some embodiments, the body frame of the power supply box 7300 has 2 openings opposite to facilitate front-to-back maintenance of the power supply box.

In some embodiments, the case frame of the power supply case 7300 may be integrally formed with the case frame 7400.

In this embodiment provides LED display screen, the power pack is provided with plate centre gripping subassembly, sets up two backup pads on the holder wherein and forms the centre gripping groove to provide two-sided support, promote the centre gripping steadiness to plate part spare. The butt section of connecting piece and the lateral wall of connect the through-hole on the holder are provided with and support each other and hold the complex plane, rotate the connecting piece, can drive the holder and rotate together. All set up operating means at two terminal surfaces of connecting piece, can realize two directions rotation connecting piece in the past back, and then drive the holder and rotate together, realize the switching of holder centre gripping plate part and release plate part two kinds of states to in the front and back maintenance operation of realizing plate part promotes the maintenance efficiency of power pack.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A plate clamping assembly is characterized by comprising a clamping piece and a connecting piece;

2. A panel clamping assembly according to claim 1, wherein auxiliary projections are provided on the side walls of said support plate facing said clamping groove.

3. A panel clamping assembly according to claim 1, wherein the side walls of the support plate are provided with inclined surfaces, and the height of the opening of the clamping groove is greater than the height of the center of the clamping groove.

4. A panel clamping assembly according to claim 1, wherein the clamping member is provided with an operating member at each end thereof, the operating member being a rib fixedly connected to at least one of the body portion and the support plate, the rib being provided at a side of the two support plates remote from each other.

5. A panel clamping assembly according to any of claims 1 to 4, wherein the connector is provided at each end with an operating member which is one of a slot, a projection, a removably attachable rotation aid.

6. A panel clamp assembly according to any one of claims 1 to 4, further comprising a locking nut, the anchoring portion being a threaded post, the locking nut engaging the anchoring portion to secure the clamp.

7. The panel clamping assembly according to claim 6, further comprising a fastening spring, wherein a mounting cap is arranged at the free end of the abutting section, the operating part is arranged on the mounting cap, and the cross section of the mounting cap is larger than that of the free end of the abutting section;

8. A power supply box comprises a box body frame, a box cover, a plate part and a plate clamping assembly, wherein an accommodating cavity is formed in the box body frame, and the plate part is arranged in the accommodating cavity; the box cover is connected with the box body frame and can cover the box body frame, and is characterized in that,

the plate clamping assembly is the plate clamping assembly as claimed in any one of claims 1 to 7, and comprises a clamping piece and a connecting piece, wherein the clamping piece is rotatably and fixedly connected with the box body frame through the connecting piece;

the plate part is clamped and fixed by at least one plate clamping assembly.

9. The power pack of claim 8, further comprising an auxiliary connection assembly, said auxiliary connection assembly comprising an auxiliary connection member, a frame connection member, and a plate connection member;

10. An LED display screen, comprising a box body frame, a power supply box and at least one LED display module, wherein the LED display module is arranged on the display surface of the box body frame, the power supply box is fixedly connected with the box body frame, and the power supply box is the power supply box of claim 8 or 9.