Liquid crystal display pin limiting device

Abstract

The utility model discloses a liquid crystal display screen pin limiting device, which belongs to the technical field of liquid crystal display screen limiting devices and comprises a limiting component mounted on a liquid crystal display screen, the limiting component comprises a sliding sleeve and a connecting block, and a plurality of pins are fixedly connected to the bottom of the liquid crystal display screen. The plurality of sliding sleeves are slidably connected to the plurality of pins in a one-to-one correspondence manner, one sides of the plurality of sliding sleeves are fixedly connected with the same connecting block, and the plurality of pins are sleeved with a PCB. According to the utility model, through the arrangement of the limiting assembly and the adjusting assembly, the adjusting screw rod is controlled to rotate, and the two sliding blocks are synchronously driven to be close to or far away from each other; the four rotating structures and the two connecting rods drive the connecting rods to move in the axial direction of the multiple pins, and the distance between the multiple sliding sleeves and the liquid crystal display screen can be conveniently adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid crystal display screen limiting devices, in particular to a liquid crystal display screen pin limiting device. Background Art

[0002] When soldering an LCD screen to a PCB, in order to control the distance between the LCD screen and the PCB, other supports are usually used to determine the spacing between the two. However, the additional support device increases the complexity of the assembly process and the workload of the staff.

[0003] The patent with application number CN202121145733.6 discloses a liquid crystal display pin limit device, which controls the rotation of the screw to pull the traction wire and cooperates with the spring to control the position of the limit sleeve on the pin. In this way, when the PCB board is pressed against multiple sliding sleeves, the sliding sleeve is prone to fluctuations, thereby affecting the welding effect of the two. Utility Model Content

[0004] The utility model aims to provide a pin limiting device for a liquid crystal display screen, so as to solve the problem in the traditional technology that when a PCB board is pressed against a plurality of sliding sleeves, the sliding sleeves are prone to fluctuations, thereby affecting the welding effect of the two.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liquid crystal display pin limiting device, comprising:

[0007] A limit assembly installed on a liquid crystal display screen, the limit assembly comprising a sliding sleeve and a connecting block, wherein a plurality of pins are fixedly connected to the bottom of the liquid crystal display screen, a plurality of sliding sleeves are slidably connected to the plurality of pins in a one-to-one correspondence, a plurality of sliding sleeves are fixedly connected to the same connecting block on one side, wherein a PCB board is sleeved on the plurality of pins;

[0008] An adjustment component, the adjustment component includes a connecting rod, a rotating structure, a sliding block, a fixed block and an adjusting screw, the fixed block is fixedly connected to the LCD screen, two sliding blocks are slidably connected to the fixed block, both ends of the connecting block and the two sliding blocks are connected to the rotating structure, the two rotating structures located on the same side are connected to the same connecting rod, and the two sliding blocks are threadedly connected to the same adjusting screw.

[0009] Preferably, the rotating structure includes a rotating seat and a rotating shaft, the four rotating seats are fixedly connected to the two ends of the connecting block and the two sliding blocks respectively, the four rotating seats are rotatably connected with the rotating shafts, and the four rotating shafts are fixedly connected to the two ends of the two connecting rods one by one.

[0010] Preferably, a sliding groove is provided on the fixed block, and the two sliding blocks are slidably connected in the sliding groove.

[0011] Preferably, the two connecting rods and the sliding block are symmetrically distributed about the center of the plurality of pins.

[0012] Preferably, the thread pitches of the adjusting screw and the threaded connection parts of the two sliding blocks are equal, and the thread directions are opposite.

[0013] Preferably, one end of the adjusting screw passes through the fixing block and is fixedly connected with a handle.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, a limit assembly and an adjustment assembly are provided to control the rotation of the adjustment screw, and the two sliding blocks are synchronously driven to move closer to or farther from each other. The connecting rod is driven to move along the axial direction of multiple pins through four rotation structures and two connecting rods, so that the distance between multiple sliding sleeves and liquid crystal display screens can be easily adjusted. Compared with the use of traction lines and spring structures, the stability of the connecting rod after movement is improved, and the fluctuation of the sliding sleeves when the PCB board is pressed against the multiple sliding sleeves is effectively avoided, which affects the welding effect of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a vertical cross-sectional structural schematic diagram of the fixing block of the utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0019] In the figure: 1 LCD screen, 2 pins, 3 PCB board, 4 sliding sleeve, 5 connecting block, 6 rotating seat, 7 rotating shaft, 8 connecting rod, 9 sliding block, 10 fixed block, 11 sliding groove, 12 adjusting screw, 13 handle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 , a liquid crystal display pin limiting device, comprising:

[0022] A limit assembly installed on a liquid crystal display screen 1 includes a sliding sleeve 4 and a connecting block 5, wherein a plurality of pins 2 are fixedly connected to the bottom of the liquid crystal display screen 1, a plurality of sliding sleeves 4 are slidingly connected to the plurality of pins 2 in a one-to-one correspondence, a plurality of sliding sleeves 4 are fixedly connected to the same connecting block 5 on one side, and a PCB board is sleeved on the plurality of pins 2.

[0023] The adjustment component includes a connecting rod 8, a rotating structure, a sliding block 9, a fixed block 10 and an adjusting screw 12. The fixed block 10 is fixedly connected to the LCD screen 1, and two sliding blocks 9 are slidably connected to the fixed block 10. The rotating structure is connected to both ends of the connecting block 5 and the two sliding blocks 9, wherein the two rotating structures located on the same side are connected to the same connecting rod 8, and the two sliding blocks 9 are threadedly connected to the same adjusting screw 12.

[0024] The rotating structure includes a rotating seat 6 and a rotating shaft 7. The four rotating seats 6 are fixedly connected to the two ends of the connecting block 5 and the two sliding blocks 9 respectively. The four rotating seats 6 are rotatably connected with the rotating shafts 7. The four rotating shafts 7 are fixedly connected to the two ends of the two connecting rods 8 one by one.

[0025] The fixed block 10 is provided with a sliding groove 11 , and the two sliding blocks 9 are slidably connected in the sliding groove 11 .

[0026] The two connecting rods 8 and the sliding block 9 are symmetrically distributed about the center of the plurality of pins 2 .

[0027] The thread pitch of the adjusting screw 12 and the two sliding blocks 9 is equal, and the thread rotation direction is opposite. When the adjusting screw 12 rotates, the two sliding blocks 9 are driven to move closer to or away from each other.

[0028] One end of the adjusting screw rod 12 passes through the fixing block 10 and is fixedly connected with a handle 13 .

[0029] The operating principle of the utility model is now described as follows:

[0030] During operation, the adjusting screw 12 is rotated by the handle 13, and the adjusting screw 12 rotates to drive the two sliding blocks 9 to move closer to or away from each other. When the two sliding blocks 9 move, they drive one end of the two connecting rods 8 to move, so that under the restriction of the pin 2 and the sliding sleeve 4, the other ends of the two connecting rods 8 drive the connecting rods 8 to move axially along the pin 2, so as to facilitate the adjustment of the distance between the multiple sliding sleeves 4 and the liquid crystal display screen 1. After the adjustment is completed, the PCB board is pushed along the pin 2 to make the PCB board contact with the multiple sliding sleeves 4, and finally the contact surface of the PCB board and the multiple sliding sleeves 4 is welded to improve the practical performance.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid crystal display pin limiting device, characterized in that: include: A limiter assembly mounted on a liquid crystal display screen (1), the limiter assembly comprising a sliding sleeve (4) and a connecting block (5), wherein a plurality of pins (2) are fixedly connected to the bottom of the liquid crystal display screen (1), a plurality of the sliding sleeves (4) are slidably connected to the plurality of pins (2) in a one-to-one correspondence, a plurality of the sliding sleeves (4) are fixedly connected to the same connecting block (5) on one side, and a PCB board is sleeved on the plurality of pins (2); An adjustment component, the adjustment component comprising a connecting rod (8), a rotating structure, a sliding block (9), a fixed block (10) and an adjusting screw (12), wherein the fixed block (10) is fixedly connected to the liquid crystal display screen (1), two sliding blocks (9) are slidably connected to the fixed block (10), both ends of the connecting block (5) and the two sliding blocks (9) are connected to the rotating structure, wherein the two rotating structures located on the same side are connected to the same connecting rod (8), and the two sliding blocks (9) are threadedly connected to the same adjusting screw (12).

2. A liquid crystal display pin limiting device according to claim 1, characterized in that: in: The rotating structure comprises a rotating seat (6) and a rotating shaft (7); the four rotating seats (6) are fixedly connected to the two ends of the connecting block (5) and the two sliding blocks (9) respectively; the four rotating seats (6) are rotatably connected with the rotating shafts (7); the four rotating shafts (7) are fixedly connected to the two ends of the two connecting rods (8) one by one.

3. A liquid crystal display pin limiting device according to claim 1, characterized in that: in: The fixed block (10) is provided with a sliding groove (11), and the two sliding blocks (9) are slidably connected in the sliding groove (11).

4. The liquid crystal display pin limiting device according to claim 1, characterized in that: in: The two connecting rods (8) and the sliding block (9) are symmetrically distributed about the center of the plurality of pins (2).

5. The liquid crystal display pin limiting device according to claim 1, characterized in that: in: The thread pitches of the adjusting screw rod (12) and the threaded connection parts of the two sliding blocks (9) are equal, and the thread rotation directions are opposite.

6. The liquid crystal display pin limiting device according to claim 1, characterized in that: in: One end of the adjusting screw rod (12) passes through the fixing block (10) and is fixedly connected to a handle (13).

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