Adjustable liquid crystal display screen structure

Abstract

The utility model discloses an adjustable liquid crystal display screen structure, including display screen body and installation fixed plate, installation fixed plate one end is equipped with the rectangular slide groove, and the inside rotation of rectangular slide groove is connected with the thread rod, the inside slide of rectangular slide groove is connected with the fixed block, the fixed block one end is provided with arc rod, arc rod and display screen body fixed mounting, the top thread connection of installation fixed plate has the installation block, the inside rotation of installation block is connected with the ratchet wheel, the ratchet wheel and thread rod fixed mounting, the top rotation of installation block is connected with the adjusting handle, and adjusting handle and thread rod fixed mounting, the inside rotation of installation block is connected with the pawl no.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, specifically an adjustable liquid crystal display structure. Background Technology

[0002] An LCD screen is a flat panel display composed of small LED module panels, used to display various information such as text, images, and videos.

[0003] According to the adjustable liquid crystal display structure disclosed in announcement number CN219140366U, it includes a liquid crystal display body. The liquid crystal display body is provided with a rotating mechanism for adjusting the angle of the liquid crystal display body. The rotating mechanism includes an arc-shaped rod, a mounting plate, and a second C-shaped rod. A first C-shaped plate is fixedly installed on the side end of the liquid crystal display body. A first threaded rod is fixedly installed on the inner wall of the first C-shaped plate. A rectangular block is fixedly installed on the side end of the arc-shaped rod. A first threaded groove is formed through the upper end of the rectangular block. The first threaded rod is threadedly rotatably installed on the inner wall of the first threaded groove. This utility model, by setting up a mounting block and a third threaded rod in cooperation, allows the liquid crystal display body to move up or down by rotating the third threaded rod, facilitating the adjustment of the height of the liquid crystal display body. It is simple to operate and convenient to use.

[0004] The above-mentioned device can easily adjust the height of the screen body and is convenient to use. According to the instruction manual and the attached drawings, the fixed block and the third threaded rod cooperate to rotate the third threaded rod to move the LCD screen body up or down. When the threaded connection is made, the screen may loosen due to its own weight and slight vibration during use, and the angle may easily shift. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable LCD screen structure to solve the problem that when the LCD screen body is moved up or down by rotating the third threaded rod in conjunction with the fixed block, the screen may loosen due to its own weight and slight vibrations during use, and the angle may easily shift.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable liquid crystal display screen structure, comprising a display screen body and a mounting plate, wherein a rectangular groove is provided at one end of the mounting plate, and a threaded rod is rotatably connected inside the rectangular groove; a fixing block is slidably connected inside the rectangular groove; an arc-shaped rod is provided at one end of the fixing block, and the arc-shaped rod is fixedly installed to the display screen body; a mounting block is threadedly connected to the top of the mounting plate; a ratchet is rotatably connected inside the mounting block, and the ratchet is fixedly installed to the threaded rod; an adjustment handle is rotatably connected to the top of the mounting block, and the adjustment handle is fixedly installed to the threaded rod; and a pawl one and a pawl two are rotatably connected inside the mounting block.

[0007] As a further embodiment of this utility model: a reset spring is fixedly installed at one end of the pawl, and the other end of the reset spring is fixedly installed to the inner wall of the mounting block; a reset spring is fixedly installed at one end of the pawl, and the other end of the reset spring is fixedly installed to the inner wall of the mounting block.

[0008] As a further embodiment of this utility model: the mounting block is rotatably connected to a rotating shaft, and the rotating shaft is located in the middle of pawl one and pawl two. A cam is fixedly installed on the outer periphery of the rotating shaft. A connecting handle is rotatably connected to the top of the mounting block, and the bottom end of the connecting handle is fixedly installed with the rotating shaft.

[0009] As a further embodiment of this utility model: a limiting gear is fixedly installed on the outer periphery of the rotating shaft, a groove is provided at the top of the mounting block, a limiting rod is slidably connected inside the groove, and the limiting rod is adapted to the tooth groove of the limiting gear.

[0010] As a further improvement of this utility model: a damping spring is fixedly installed inside the groove, and the other end of the damping spring is fixedly installed with the limiting rod.

[0011] As a further improvement of this utility model, the limiting rod is L-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Under normal conditions, either pawl one or pawl two engages with the ratchet wheel to lock the threaded rod under the action of the return spring, preventing it from loosening due to the weight or vibration of the display screen body, thus solving the problem of easy displacement of the threaded connection, and making the structure stable and reliable. This utility model achieves one-way unlocking by directional rotation of the cam and pressing either pawl one or pawl two, preventing the threaded rod from rotating freely during adjustment. It works in conjunction with the adjustment handle to drive the threaded transmission, and the fixed block rises and falls smoothly along the rectangular slide. The height adjustment is highly accurate and meets different usage needs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the mounting and fixing plate in this utility model; Figure 3 This is a schematic diagram of the top cross-sectional structure of the mounting block in this utility model; Figure 4 This is a side cross-sectional view of the mounting block in this utility model; Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0014] In the diagram: 1. Display screen body; 2. Mounting plate; 3. Rectangular slide; 4. Fixing block; 5. Arc rod; 6. Threaded rod; 7. Mounting block; 8. Adjusting handle; 9. Ratchet; 10. Pad 1; 11. Pad 2; 12. Return spring 1; 13. Return spring 2; 14. Rotating shaft; 15. Cam; 16. Connecting handle; 17. Limit gear; 18. Groove; 19. Damping spring; 20. Limiting rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0017] Reference Figures 1 to 5In this embodiment of the utility model, an adjustable liquid crystal display screen structure includes a display screen body 1 and a mounting plate 2. One end of the mounting plate 2 is provided with a rectangular slide groove 3, and a threaded rod 6 is rotatably connected inside the rectangular slide groove 3. A fixing block 4 is slidably connected inside the rectangular slide groove 3. An arc-shaped rod 5 is provided at one end of the fixing block 4, and the arc-shaped rod 5 is fixedly installed with the display screen body 1. A mounting block 7 is threadedly connected to the top of the mounting plate 2. A ratchet 9 is rotatably connected inside the mounting block 7, and the ratchet 9 is fixedly installed with the threaded rod 6. An adjustment handle 8 is rotatably connected to the top of the mounting block 7, and the adjustment handle 8 is fixedly installed with the threaded rod 6. A pawl 10 and a pawl 2 11 are rotatably connected inside the mounting block 7. A return spring 2 13 is fixedly installed at one end of the pawl 10, and the other end of the return spring 2 13 is fixedly installed with the inner wall of the mounting block 7. A return spring 12 is fixedly installed at one end of the pawl 2 11, and the other end of the return spring 12 is fixedly installed with the inner wall of the mounting block 7.

[0018] The above-mentioned solution includes: mounting plate 2, display screen body 1, rectangular slide 3, threaded rod 6, fixing block 4, and arc rod 5, all of which are prior art referenced in the prior art documents and are not described in detail in this application. Arc rod 5 includes a rectangular block, a first threaded groove, a second threaded rod, and a first C-shaped plate, etc. The angle of display screen body 1 can be finely adjusted through arc rod 5. Mounting block 7 is made of 45 steel, ratchet 9 is made of 20CrMnTi alloy structural steel, and adjustment handle 8 is made of ABS engineering plastic with knurled surface treatment to enhance grip. Pad 1 10 and Pad 2 11 are both made of 65Mn spring steel and are hook-shaped structures adapted to the tooth shape of ratchet 9. Reset spring 1 12 and Reset spring 2 13 are both made of 60Si2Mn spring steel and are cylindrical helical compression springs. The advantages of this structure are as follows.

[0019] Reference Figures 1 to 5 The mounting block 7 is rotatably connected to a rotating shaft 14, which is located in the middle of pawl 10 and pawl 2 11. A cam 15 is fixedly installed on the outer periphery of the rotating shaft 14. A connecting handle 16 is rotatably connected to the top of the mounting block 7, and the bottom end of the connecting handle 16 is fixedly installed to the rotating shaft 14. A limiting gear 17 is fixedly installed on the outer periphery of the rotating shaft 14. A groove 18 is opened at the top of the mounting block 7. A limiting rod 20 is slidably connected inside the groove 18, and the limiting rod 20 is matched with the tooth groove of the limiting gear 17. A damping spring 19 is fixedly installed inside the groove 18, and the other end of the damping spring 19 is fixedly installed to the limiting rod 20. The limiting rod 20 is L-shaped. The above scheme is adopted: the rotating shaft 14 is made of 45# steel, the cam 15 is made of 20CrMnTi material, the connecting handle 16 is made of ABS plastic, the limit gear 17 is made of 20Cr steel, the limit rod 20 is made of stainless steel, and the damping spring 19 is made of 60Si2Mn steel. The connecting handle 16 drives the rotating shaft 14 to rotate, and the rotating shaft 14 synchronously links the cam 15 and the limit gear 17 to achieve coordinated action of multiple components. The rotation of the cam 15 can simultaneously push the pawl 10 or the pawl 2 11, quickly contacting the pawl 10 or the pawl 2 11 with the ratchet. When wheel 9 meshes, the limiting rod 20, under the action of damping spring 19, engages with the tooth groove of limiting gear 17, firmly locking the position of rotating shaft 14 and preventing cam 15 from moving accidentally. The L-shaped limiting rod 20 is easy to operate manually; it can be disengaged from limiting gear 17 by pressing, making unlocking convenient. Damping spring 19 can buffer the impact of limiting rod 20, ensuring that it fits tightly with limiting gear 17. The groove 18 of mounting block 7 provides guidance for limiting rod 20, ensuring precise engagement with limiting gear 17 and improving the reliability and operating efficiency of the overall structure.

[0020] The working principle of this utility model is as follows: Under normal conditions, the pawl 10 or pawl 21 inside the mounting block 7, under the elastic action of the return spring 213 or the return spring 12, maintains contact with the tooth groove of the ratchet 9. At this time, the pawl 10 and pawl 21 restrict the rotation of the ratchet 9, thereby fixing the position of the threaded rod 6 and preventing the threads of the display screen from loosening due to its own weight or vibration. When it is necessary to raise the display screen, first pull the L-shaped limiting rod 20 outward, so that it slides along the groove 18 at the top of the mounting block 7 and compresses the damping spring 19. The limiting rod 20 disengages from the tooth groove of the limiting gear 17 on the outer periphery of the rotating shaft 14, releasing the lock on the rotating shaft 14. Then, rotate the connecting handle 16 to drive the rotating shaft 14 and the outer cam 15 to rotate. The protruding part of the cam 15 precisely squeezes the pawl 21, forcing the pawl 211 to press down. The return spring 12 disengages from the ratchet 9, while the pawl 10 remains engaged with the ratchet 9 under the action of the return spring 2 13. At this time, rotating the adjustment handle 8 clockwise causes the threaded rod 6 to rotate synchronously with the ratchet 9. The teeth of the ratchet 9 push the pawl 10 to compress the return spring 2 13, achieving one-way avoidance. The threaded rod 6 then drives the fixed block 4 to slide upward along the rectangular slide groove 3, raising the display screen body 1 through the arc rod 5. When it is necessary to lower the display screen, repeat the above unlocking steps. Rotating the connecting handle 16 causes the protruding part of the cam 15 to squeeze the pawl 10, which compresses the return spring 2 13 and disengages from the ratchet 9. The pawl 2 11 remains engaged with the ratchet 9. At this time, rotating the adjustment handle 8 counterclockwise causes the ratchet 9 to push the pawl 2 11 to avoid the ratchet 9, and the threaded rod 6 rotates in the opposite direction, causing the fixed block 4 and the display screen to descend.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable liquid crystal display screen structure, comprising a display screen body (1) and a mounting plate (2), wherein a rectangular slide groove (3) is provided at one end of the mounting plate (2), and a threaded rod (6) is rotatably connected inside the rectangular slide groove (3), a fixing block (4) is slidably connected inside the rectangular slide groove (3), and an arc-shaped rod (5) is provided at one end of the fixing block (4), the arc-shaped rod (5) being fixedly installed with the display screen body (1), characterized in that, The mounting plate (2) has a mounting block (7) threadedly connected to its top end. The mounting block (7) has a ratchet (9) rotatably connected inside. The ratchet (9) is fixedly installed with the threaded rod (6). The mounting block (7) has an adjusting handle (8) rotatably connected to its top end. The adjusting handle (8) is fixedly installed with the threaded rod (6). The mounting block (7) has a pawl one (10) and a pawl two (11) rotatably connected inside.

2. The adjustable liquid crystal display screen structure according to claim 1, characterized in that, One end of the pawl (10) is fixedly installed with a reset spring (13), and the other end of the reset spring (13) is fixedly installed with the inner wall of the mounting block (7). One end of the pawl (11) is fixedly installed with a reset spring (12), and the other end of the reset spring (12) is fixedly installed with the inner wall of the mounting block (7).

3. The adjustable liquid crystal display screen structure according to claim 2, characterized in that, The mounting block (7) is rotatably connected to a rotating shaft (14), and the rotating shaft (14) is located in the middle of pawl one (10) and pawl two (11). A cam (15) is fixedly installed on the outer periphery of the rotating shaft (14). A connecting handle (16) is rotatably connected to the top of the mounting block (7), and the bottom end of the connecting handle (16) is fixedly installed with the rotating shaft (14).

4. The adjustable liquid crystal display screen structure according to claim 3, characterized in that, The rotating shaft (14) is fixedly installed with a limiting gear (17) on its outer periphery. The top of the mounting block (7) has a groove (18) and a limiting rod (20) is slidably connected inside the groove (18). The limiting rod (20) is adapted to the tooth groove of the limiting gear (17).

5. The adjustable liquid crystal display screen structure according to claim 4, characterized in that, A damping spring (19) is fixedly installed inside the groove (18), and the other end of the damping spring (19) is fixedly installed with the limiting rod (20).

6. The adjustable liquid crystal display screen structure according to claim 5, characterized in that, The limiting rod (20) is L-shaped.

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