Positioning device and spliced screen

Abstract

The application relates to the field of LED display screens, in particular to a positioning device and a spliced screen. The positioning device is installed on a display screen, a clamping block is rotated by a preset angle, a first boss is inserted into a third hole, a spring drives a first shaft to outwardly extend, the first shaft is inserted into a positioning hole of another display screen, a second boss abuts against a second end surface, and the positioning shaft is clamped, so that two display screens are positioned, the problem that when the display screens are spliced, manual work is needed to keep the two display screens from being displaced up and down or left and right, and the installation efficiency is low is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of LED display screen, in particular to a positioning device and a spliced screen. BACKGROUND

[0002] The spliced screen is spliced by multiple display screens, two display screens are spliced by locking devices, before the locking devices are locked, two display screens are aligned and positioned manually, then the current positions of the two display screens are maintained manually, the two display screens are not moved up and down, the locking device of one display screen is aligned with the locking hole of another display screen, the two display screens are not moved up and down or left and right manually, which leads to low installation efficiency. SUMMARY

[0003] In view of the defects in the prior art, the present application provides a positioning device and a spliced screen, which aims at solving the problem of low installation efficiency caused by the need of manually keeping two display screens from moving up and down or left and right during splicing of the display screens.

[0004] The technical scheme provided by the present application is as follows:

[0005] A positioning device comprises a fixing seat, a positioning shaft, a spring and a clamping block.

[0006] The fixing seat is used for being installed on a display screen, the fixing seat comprises a first end face and a second end face, the first end face is provided with a first hole, the bottom wall of the first hole is provided with a second hole, the second end face is provided with a third hole, and the third hole is communicated with the second hole.

[0007] The positioning shaft comprises a first shaft and a second shaft, the second shaft is arranged at one end of the first shaft, the first shaft is arranged in the first hole, the other end of the first shaft is used for being inserted into a positioning hole of another display screen, the second shaft is penetrated through the second hole and the third hole and connected with the clamping block, and the connection mode between the second shaft and the clamping block is radial rotary connection.

[0008] The spring is sleeved on the second shaft, one end of the spring abuts against the first shaft, and the other end of the spring abuts against the bottom wall of the second hole.

[0009] The side wall of the clamping block is provided with a first boss and a second boss, the first boss abuts against the second end face and clamps the positioning shaft, when the clamping block is rotated by a preset angle, the clamping block is rotated and the positioning shaft is not rotated, the spring drives the positioning shaft to move, the first boss is inserted into the third hole, the length of the first shaft protruding out of the first hole is increased, and the second boss abuts against the second end face and clamps the positioning shaft.

[0010] Further, the side wall of the fixing seat is provided with a connecting block, and the connecting block is provided with a first connecting hole.

[0011] Further, the first end surface is provided with two first grooves, and the two first grooves are located on the two sides of the third hole and communicate with the third hole.

[0012] Further, the bottom wall of the first groove comprises a first plane wall, a second plane wall and an inclined plane wall.

[0013] Further, the upper part of the clamping block is provided with a clamping cap, and the upper end surface of the clamping cap is provided with a second groove.

[0014] Further, the clamping block comprises a first clamping block and a second clamping block, and the first clamping block and the second clamping block are arranged at the bottom of the clamping cap alternately.

[0015] Further, the first hole and the second hole are circular holes, and the third hole is a strip-shaped hole.

[0016] Further, the radius of the first shaft is greater than the radius of the second shaft.

[0017] Further, the bottom of the first shaft is provided with a strip-shaped groove.

[0018] The application also provides a spliced screen comprising the positioning device.

[0019] According to the above technical scheme, the positioning device is installed on the display screen, the clamping block is rotated by a preset angle, the first boss is inserted into the third hole, the spring drives the first shaft to extend outward, and the first shaft is inserted into the positioning hole of another display screen, the second boss abuts against the second end surface, and the positioning shaft is clamped, so that the two display screens are positioned, and the problem that manual work is required to keep the two display screens from moving up and down or left and right during splicing of the display screens is solved, and the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the positioning device provided by the embodiment of the application;

[0021] Figure 2 is another schematic view of the positioning device provided by the embodiment of the application in another direction;

[0022] Figure 3 is an exploded view of the positioning device provided by the embodiment of the present application;

[0023] Figure 4 is a schematic view of the fixing seat provided by the embodiment of the present application;

[0024] Figure 5 is a schematic view of the clamping block provided by the embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0026] As shown in Figures 1 to 5 , the embodiment of the present application provides a positioning device 1, which comprises a fixing seat 11, a positioning shaft 12, a spring 13 and a clamping block 14.

[0027] The fixing seat 11 is used to be installed on a display screen, the fixing seat 11 comprises a first end face 111 and a second end face 112, the first end face 111 is provided with a first hole 113, the hole bottom wall of the first hole 113 is provided with a second hole 114, the second end face 112 is provided with a third hole 115, and the third hole 115 is in communication with the second hole 114.

[0028] The positioning shaft 12 comprises a first shaft 121 and a second shaft 122, the second shaft 122 is arranged at one end of the first shaft 121, the first shaft 121 is arranged in the first hole 113, the other end of the first shaft 121 is used to be inserted into a positioning hole of another display screen, the second shaft 122 passes through the second hole 114 and the third hole 115 and is connected with the clamping block 14, and the connection mode between the second shaft 122 and the clamping block 14 is radial rotary connection.

[0029] The spring 13 is sleeved on the second shaft 122, one end of the spring 13 abuts against the first shaft 121, and the other end of the spring 13 abuts against the hole bottom wall of the second hole 114.

[0030] The side wall of the clamping block is provided with a first boss 141 and a second boss 146, the first boss 141 abuts against the second end face 112 and clamps the positioning shaft 12, when the clamping block 14 rotates by a preset angle, the clamping block 14 rotates and the positioning shaft 12 does not rotate, the spring 13 drives the positioning shaft 12 to move, the first boss 141 is inserted into the third hole 115, thereby increasing the length of the first shaft 121 protruding out of the first hole 113, and the second boss 146 abuts against the second end face 112 and clamps the positioning shaft 12.

[0031] The positioning device 1 is installed on the display screen, the clamping block 14 is rotated by a preset angle, the first boss 141 is inserted into the third hole 115, the spring 13 drives the first shaft 121 to extend outward and is inserted into the positioning hole of another display screen, the second boss 146 abuts against the second end face 112 and clamps the positioning shaft 12, so that the two display screens are positioned, and the problem of low installation efficiency caused by manual keeping of the two display screens from moving up and down or left and right during splicing of the display screens is solved.

[0032] In the embodiment, the preset angle is 90°.

[0033] In the embodiment, when the first boss 141 abuts against the second end face 112 and clamps the positioning shaft 12, the first shaft 121 protrudes out of the first hole 113.

[0034] In the embodiment, the second boss 146 is located on the outer upper side of the first boss 141.

[0035] In the embodiment, the side wall of the fixing seat 11 is provided with a connecting block 15, and the connecting block 15 is provided with a first connecting hole 151 for installing the fixing seat 11 on the display screen. The fixing seat 11 is installed on the display screen through the first connecting hole 151. Specifically, the fixing seat 11 can be installed on the display screen by connecting the first connecting hole 151 with a screw.

[0036] In the embodiment, the first connecting hole 151 is a blind hole.

[0037] In the embodiment, the first end face 111 is provided with two first grooves 116, and the two first grooves 116 are located on both sides of the third hole 115 and communicate with the third hole 115. The clamping block 14 can rotate into the first groove 116 and abut against the bottom wall of the first groove 116, or rotate out of the first groove 116. Specifically, the clamping block 14 is rotated in a first direction and rotates into the first groove 116. When rotated to a first preset position, the groove wall of the first groove 116 blocks the clamping block 14, which prevents the clamping block 14 from rotating out of the first groove 116 in the first direction. When the clamping block 14 needs to rotate out of the first groove 116, the clamping block 14 is rotated in a direction opposite to the first direction. When rotated to a second preset position, the hole wall of the third hole 115 blocks the clamping block 14 from rotating in the direction opposite to the first direction, the clamping block 14 rotates out of the first groove 116, and the first boss 141 is inserted into the third hole 115.

[0038] Specifically, the first direction is counterclockwise, and the direction opposite to the first direction is clockwise.

[0039] In the embodiment, the bottom wall of the first groove 116 comprises a first plane wall 1161, a second plane wall 1162 and an inclined wall 1163, one end of the inclined wall 1163 is connected with the first plane wall 1161, and the other end is connected with the second plane wall 1162. The height of the first plane wall 1161 is higher than the height of the second plane wall 1162. When the clamping block 14 rotates in the first direction, it first passes through the first plane wall 1161, then along the inclined wall 1163, and finally enters the second plane wall 1162, which is the first preset position. Because of the existence of the inclined wall 1163, the rotation of the clamping block 14 in the direction opposite to the first direction is blocked to some extent, which can ensure that the clamping block 14 rotates in the first direction to enter the first groove 116, and avoid that the clamping block 14 rotates in the direction opposite to the first direction to freely exit the first groove 116.

[0040] In the embodiment, the upper part of the clamping block 14 is provided with a cap 142, and the upper end surface of the cap 142 is provided with a second groove 143. The cap 142 is arranged to facilitate the rotation of the clamping block 14 by the user. Specifically, the user clamps the clamping block 14 with the middle finger and the index finger, and presses the second groove 143 on the cap 142 with the thumb, and then rotates the clamping block 14. The second groove 143 can prevent the thumb from sliding on the cap 142.

[0041] In the embodiment, the clamping block comprises a first clamping block 144 and a second clamping block 145, which are arranged alternately at the bottom of the cap 142. The first clamping block 144 and the second clamping block 145 have a gap therebetween. The bottom of the cap 142 is provided with a second connecting hole 1421, and the second shaft 122 is provided with a connecting shaft 1221 which is rotatably connected with the second connecting hole 1421 in the radial direction through the gap. The connecting part of the clamping block 14 and the positioning shaft 12 is hidden inside, which can protect the connecting part and make the overall appearance of the positioning device 1 better.

[0042] Specifically, the outer side wall of the connecting shaft 1221 is provided with a circumferential groove, and correspondingly, the hole wall of the second connecting hole 1421 is provided with a protrusion. The connecting shaft 1221 enters the second connecting hole 1421 through the gap, the protrusion is clamped into the circumferential groove, the protrusion and the circumferential groove are rotatably connected in the radial direction, and the protrusion is a flexible member.

[0043] In the embodiment, the first hole 113 and the second hole 114 are circular holes, and the third hole 115 is a strip-shaped hole. Specifically, the radius of the first hole 113 is greater than the radius of the second hole 114.

[0044] In the embodiment, the radius of the first shaft 121 is greater than the radius of the second shaft 122.

[0045] The first shaft 121 is matched with the first hole 113, and the second shaft 122 is matched with the second hole 114.

[0046] The embodiment of the present application also provides a spliced screen comprising the positioning device 1.

[0047] The above merely provides the preferred embodiments of the present application but not for limiting the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning device, characterized in that The positioning device comprises a fixing base, a positioning shaft, a spring and a clamping block. The fixing base is used for being mounted on a display screen, and comprises a first end face and a second end face. The positioning shaft comprises a first shaft and a second shaft. The spring is sleeved on the second shaft. The clamping block comprises a first clamping block and a second clamping block. The first end face is provided with a first hole. The first hole is provided with a second hole at a hole bottom wall. The second end face is provided with a third hole. The second hole is in communication with the third hole.

2. The positioning device of claim 1, wherein, The first shaft is arranged in the first hole.

3. The positioning device of claim 1, wherein, The second shaft is arranged at one end of the first shaft.

4. The positioning device of claim 1, wherein, The other end of the first shaft is used for being inserted into a positioning hole of another display screen.

5. A tiled screen, characterized by The second shaft is in communication with the third hole and connected with the clamping block. The second shaft is radially rotatably connected with the clamping block. The spring is sleeved on the second shaft. One end of the spring is abutted against the first shaft. The other end of the spring is abutted against the hole bottom wall of the second hole. The side wall of the clamping block is provided with a first boss and a second boss. The first boss is abutted against the second end face and clamps the positioning shaft. When the clamping block is rotated by a preset angle, the clamping block is rotated and the positioning shaft is not rotated. The spring drives the positioning shaft to move. The first boss is inserted into the third hole, and the length of the first shaft protruding out of the first hole is increased. The second boss is abutted against the second end face and clamps the positioning shaft. The first end face is provided with two first grooves. The two first grooves are respectively located on both sides of the third hole and are in communication with the third hole. The clamping block can be rotated into the first groove and abutted against the bottom wall of the first groove, or rotated out of the first groove. The bottom wall of the first groove comprises a first plane wall, a second plane wall and an inclined plane wall. One end of the inclined plane wall is connected with the first plane wall. The other end of the inclined plane wall is connected with the second plane wall. The upper part of the clamping block is provided with a clamping cap. The upper end face of the clamping cap is provided with a second groove. The first clamping block and the second clamping block are arranged at the bottom of the clamping cap. The first clamping block and the second clamping block have a gap therebetween. The bottom of the clamping cap is provided with a second connecting hole. The second shaft is provided with a connecting shaft. The connecting shaft is radially rotatably connected with the second connecting hole through the gap. The side wall of the fixing base is provided with a connecting block. The connecting block is provided with a first connecting hole. The first connecting hole is used for mounting the fixing base on the display screen. The first hole and the second hole are circular holes. The third hole is a strip-shaped hole. The radius of the first shaft is greater than the radius of the second shaft. The positioning device comprises the fixing base, the positioning shaft, the spring and the clamping block. The positioning device comprises the fixing base, the positioning shaft, the spring and the clamping block.

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