Positioning structure for fixing liquid crystal module

Abstract

The utility model relates to the technical field of positioning structures, and discloses a positioning structure for fixing a liquid crystal module. The fixing buckle is fixedly connected to the mounting main plate, the fastening bolt is arranged on the fixing buckle, the first worm is rotationally connected to the mounting main plate, the first rotary button is fixedly connected to the first worm, the first worm gear is meshed with the first worm, and the first two-way threaded rod is fixedly connected to the first worm gear. And the first telescopic assembly is arranged in the mounting main plate. The position of the limiting assembly is flexibly adjusted by adjusting the first telescopic assembly and the second telescopic assembly according to the sizes of different liquid crystal modules, and the position of the limiting assembly is flexibly adjusted by adjusting the first telescopic assembly and the second telescopic assembly according to the sizes of the different liquid crystal modules. The problems of deviation, sliding and the like of the liquid crystal module due to improper limiting are effectively avoided, the overall applicability of the positioning structure is improved, and the stability is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning structure technology, and in particular to a positioning structure for fixing liquid crystal modules. Background Technology

[0002] As a core component of modern display devices, the LCD module plays a vital role in various electronic products. It integrates the LCD panel, driving circuit, backlight module and related connecting components. To ensure stable image display, the LCD module is fixed by a positioning structure, which is an indispensable auxiliary part of LCD display.

[0003] In existing technologies, common positioning mechanisms are typically designed based on the size parameters of a specific LCD module model. This design approach demonstrates good positioning performance for a single module model, ensuring the stability and accuracy of module installation. However, when replacing LCD modules of different sizes, the original positioning structure cannot achieve compatibility through simple adjustments. Due to the significant differences in size parameters between modules of different sizes, the original positioning structure cannot achieve compatibility through simple adjustments. In practice, if the original positioning mechanism is forcibly used to install modules of different sizes, it can lead to visible displacement of the module after installation. This displacement may manifest as left-right movement in the horizontal direction or up-down misalignment in the vertical direction, thus affecting the overall display effect, causing problems such as image tilt and blurred edges, reducing the user's visual experience. More seriously, inaccurate positioning may also cause the module to slip and fall, resulting in damage. Therefore, it is necessary to improve the positioning structure for fixing LCD modules to solve the above problems. Utility Model Content

[0004] To overcome the problem that fixed positioning mechanisms cannot flexibly accommodate LCD modules of different sizes.

[0005] The technical solution of this utility model is as follows: a positioning structure for fixing an LCD module, including a mounting motherboard, a fixing buckle fixedly connected to the mounting motherboard, a fastening bolt set on the fixing buckle, a first worm gear rotatably connected to the mounting motherboard, a first knob fixedly connected to the first worm gear, a first worm wheel meshing with the first worm gear, a first bidirectional threaded rod fixedly connected to the first worm wheel, a first telescopic component set inside the mounting motherboard, a vertical connecting seat set on the telescopic component, a second telescopic component set on the vertical connecting seat, and a limiting component set on the second telescopic component. The first bidirectional threaded rod is rotatably connected inside the mounting motherboard. The horizontal length is adjusted by the first telescopic component, the vertical length is adjusted by the second telescopic component, and the limiting component limits the LCD module.

[0006] Preferably, a limiting groove is provided at the relative position of the mounting motherboard and the first bidirectional threaded rod is rotatably connected to the groove.

[0007] Preferably, the first telescopic assembly includes a first sliding plate slidably connected inside the mounting motherboard, a first connecting block fixedly connected to the first sliding plate, a first fixed rack fixedly connected inside the mounting motherboard, a first gear meshing on the first fixed rack, a first transmission wheel fixedly connected to the first gear, a second transmission wheel rotatably connected to the first sliding plate, a transmission belt drivingly between the second transmission wheel and the first transmission wheel, a second connecting block fixedly connected to the transmission belt, and a second sliding plate slidably connected to the first sliding plate. The first gear is rotatably connected to the first sliding plate, the first connecting block is threadedly connected to a first bidirectional threaded rod, and a vertical connecting seat is fixedly connected to one end of the second sliding plate. The first fixed rack and the first gear cooperate to drive the first transmission wheel to rotate. When the first bidirectional threaded rod rotates, it drives the first connecting block to move. When the first connecting block moves, it drives the first sliding plate to slide.

[0008] Preferably, the first sliding plate has a limiting groove at the relative position of the first gear, and the first gear is rotatably connected to the groove.

[0009] Preferably, the second telescopic assembly includes a second worm gear rotatably connected to a vertical connecting seat, a second knob fixedly connected to one end of the second worm gear, a second worm wheel meshing with the second worm gear, a second bidirectional threaded rod fixedly connected to the second worm wheel, and a sliding seat threadedly connected to the second bidirectional threaded rod. The sliding seat is slidably connected to the vertical connecting seat. Rotating the second knob drives the second worm gear to rotate, which in turn drives the second bidirectional threaded rod to rotate. The rotation of the second bidirectional threaded rod causes the sliding seat to slide inside the vertical connecting seat.

[0010] Preferably, the vertical connecting seat has a limiting groove at the relative position of the second bidirectional threaded rod, and the second bidirectional threaded rod is rotatably connected to the groove.

[0011] Preferably, the limiting assembly includes a second fixed seat fixedly connected to one end of the vertical connecting seat, a rotating bracket rotatably connected to the second fixed seat, a first threaded rod rotatably connected to the rotating bracket, a third knob fixedly connected to one end of the first threaded rod, a limiting plate threadedly connected to the first threaded rod, a second gear rotatably connected to the second fixed seat, a fourth knob fixedly connected to the second gear, a second fixed rack meshing with the second gear, a third connecting plate fixedly connected to the second fixed seat, a limiting block fixedly connected to the second fixed rack, a first spring fixedly connected between the limiting block and the third connecting plate, and the limiting block slidably connected to the second fixed seat.

[0012] Preferably, the second fixing seat has a through groove at the relative position of the limiting block, and the limiting block is slidably connected inside the through groove.

[0013] The beneficial effects of this utility model are:

[0014] By adjusting the first and second telescopic components, the position of the limiting component can be flexibly adjusted according to the size of different LCD modules. This effectively avoids problems such as LCD module offset and slippage caused by improper limiting, improves the overall applicability of the positioning structure, and significantly enhances stability.

[0015] During installation, rotating the bracket moves the limiting plate on both sides to avoid affecting the installation of the LCD module. At the same time, rotating the third knob adjusts the position of the limiting plate to fully limit the LCD modules of different thicknesses, thereby effectively preventing drops and displacement during subsequent use or transportation, ensuring the stability and safety of the LCD module. Attached Figure Description

[0016] Figure 1 A schematic diagram of one embodiment of the positioning structure for fixing the liquid crystal module of this utility model;

[0017] Figure 2 for Figure 1 A cross-sectional structural diagram showing the motherboard being installed in the middle;

[0018] Figure 3 This is a schematic diagram of the structure of the first knob and its connected components of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the first telescopic component of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second telescopic component of this utility model;

[0021] Figure 6 This is a partial structural schematic diagram of the second telescopic component of this utility model;

[0022] Figure 7 This is a schematic diagram of the limiting component of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the second gear and its connected components of this utility model.

[0024] Explanation of reference numerals in the attached diagram: 1. Mounting main board; 21. First worm gear; 22. First knob; 23. First worm wheel; 24. First double-ended threaded rod; 25. Vertical connecting seat; 26. First sliding plate; 27. First connecting block; 28. First fixed rack; 29. ​​First gear; 210. First transmission wheel; 211. Second transmission wheel; 212. Transmission belt; 213. Second connecting block; 214. Second sliding plate; 215. Second worm gear; 216. Second knob; 217. Second worm wheel; 218. Second double-ended threaded rod; 219. Sliding seat; 31. Second fixed seat; 32. Rotating bracket; 33. First threaded rod; 34. Third knob; 35. Limiting plate; 36. Second gear; 37. Fourth knob; 38. Second fixed rack; 39. Third connecting plate; 310. First spring; 311. Limiting block; 4. Fixing buckle; 5. Fastening bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figure 1 - Figure 8 This utility model provides an embodiment of a positioning structure for fixing a liquid crystal module, including a mounting motherboard 1, a fixing buckle 4 fixedly connected to the mounting motherboard 1, a fastening bolt 5 disposed on the fixing buckle 4, a first worm gear 21 rotatably connected to the mounting motherboard 1, a first knob 22 fixedly connected to the first worm gear 21, a first worm wheel 23 meshing with the first worm gear 21, a first bidirectional threaded rod 24 fixedly connected to the first worm wheel 23, a first telescopic component disposed inside the mounting motherboard 1, a vertical connecting seat 25 disposed on the telescopic component, a second telescopic component disposed on the vertical connecting seat 25, and a limiting component disposed on the second telescopic component. The first bidirectional threaded rod 24 is rotatably connected inside the mounting motherboard 1, the horizontal length is adjusted by the first telescopic component, and the vertical length is adjusted by the second telescopic component. The limiting component limits the LCD module. During use, after aligning the through hole of the fixing buckle 4 with the external threaded hole, the fastening bolt 5 is threaded through the fixing buckle 4 and connected to the external threaded hole to complete the installation of the motherboard 1. Based on the required LCD module size, the first knob 22 is rotated to drive the first worm gear 21 to rotate. When the first worm gear 21 rotates, it cooperates with the first worm wheel 23 to drive the first bidirectional threaded rod 24 to rotate. When the first bidirectional threaded rod 24 rotates, it drives the first telescopic component to extend, thereby adjusting the lateral length distance between the vertical connecting seat 25 and the limiting component connected thereto. Then, by adjusting the extension and retraction of the second telescopic component on the vertical connecting seat 25, the vertical distance between the limiting components is adjusted. After adjusting the limiting component to the appropriate position, the LCD module is installed on the limiting component, thus completing the positioning.

[0027] Please see Figure 1 － Figure 6In this embodiment, the mounting motherboard 1 has a limiting groove at the relative position of the first bidirectional threaded rod 24. The first bidirectional threaded rod 24 is rotatably connected to the groove. The groove limits the rotation of the first bidirectional threaded rod 24, preventing it from shifting during rotation and affecting the subsequent movement of the first telescopic assembly. The first telescopic assembly includes a first sliding plate 26 slidably connected inside the mounting motherboard 1, a first connecting block 27 fixedly connected to the first sliding plate 26, a first fixed rack 28 fixedly connected inside the mounting motherboard 1, a first gear 29 meshing with the first fixed rack 28, a first transmission wheel 210 fixedly connected to the first gear 29, a second transmission wheel 211 rotatably connected to the first sliding plate 26, and a transmission link. A transmission belt 212 connects the second transmission wheel 211 and the first transmission wheel 210; a second connecting block 213 is fixedly connected to the transmission belt 212; a second sliding plate 214 is slidably connected to the first sliding plate 26; a first gear 29 is rotatably connected to the first sliding plate 26; a first connecting block 27 is threadedly connected to the first bidirectional threaded rod 24; a vertical connecting seat 25 is fixedly connected to one end of the second sliding plate 214; a first fixed rack 28 cooperates with the first gear 29 to drive the first transmission wheel 210 to rotate; when the first bidirectional threaded rod 24 rotates, it drives the first connecting block 27 to move; when the first connecting block 27 moves, it drives the first sliding plate 26 to slide. Adjustment is achieved through the cooperation of the first bidirectional threaded rod 24 and the first connecting block 27. The first sliding plate 26 and the second sliding plate 214 on both sides slide in mirror image to adjust the lateral length of the overall positioning mechanism. The first sliding plate 26 has a limiting groove at the relative position of the first gear 29. The first gear 29 is rotatably connected to the groove, which restricts the rotation of the first gear 29 and prevents it from tilting during rotation, thus affecting its meshing with the first fixed rack 28. The second telescopic component includes a second worm 215 rotatably connected to the vertical connecting seat 25, a second knob 216 fixedly connected to one end of the second worm 215, a second worm wheel 217 meshing with the second worm 215, a second bidirectional threaded rod 218 fixedly connected to the second worm wheel 217, and a sliding mechanism threadedly connected to the second bidirectional threaded rod 218. The base 219 and the sliding base 219 are slidably connected to the vertical connecting base 25. Rotating the second knob 216 drives the second worm gear 215 to rotate. The second worm gear 215, in conjunction with the second worm wheel 217, drives the second bidirectional threaded rod 218 to rotate. The rotation of the second bidirectional threaded rod 218 causes the sliding base 219 to slide inside the vertical connecting base 25. The rotation of the second bidirectional threaded rod 218 causes the sliding bases 219 on both sides to move in a mirror image. This, in conjunction with the first telescopic component, adjusts the lateral and vertical positions of its limiting components to restrict and position LCD modules of different sizes. The vertical connecting base 25 has a limiting groove at the relative position of the second bidirectional threaded rod 218, and the second bidirectional threaded rod 218 is rotatably connected to the groove.The rotation of the second bidirectional threaded rod 218 is restricted by the slot, preventing it from tilting during rotation and affecting the sliding of its adjusting slide seat 219.

[0028] Please see Figure 1 , Figure 7 - Figure 8 In this embodiment, the limiting component includes a second fixed base 31 fixedly connected to one end of the vertical connecting base 25, a rotating bracket 32 ​​rotatably connected to the second fixed base 31, a first threaded rod 33 rotatably connected to the rotating bracket 32, a third knob 34 fixedly connected to one end of the first threaded rod 33, a limiting plate 35 threadedly connected to the first threaded rod 33, a second gear 36 rotatably connected to the second fixed base 31, a fourth knob 37 fixedly connected to the second gear 36, a second fixed rack 38 meshing with the second gear 36, a third connecting plate 39 fixedly connected to the second fixed base 31, and a limiting block fixedly connected to the second fixed rack 38. 311, a first spring 310 is fixedly connected between the limiting block 311 and the third connecting plate 39. The limiting block 311 is slidably connected to the second fixed seat 31. By rotating the fourth knob 37, the second gear 36 is driven to rotate. The second gear 36 cooperates with the second fixed rack 38 to drive the limiting block 311 to move. The limiting block 311 restricts the rotation of the rotating bracket 32. The second fixed seat 31 has a through groove at the relative position of the limiting block 311. The limiting block 311 is slidably connected inside the through groove. The through groove restricts the sliding of the limiting block 311 and prevents the limiting block 311 from deviating when sliding, which would affect the stability of its restriction on the rotating bracket 32.

[0029] During operation, after aligning the through hole of the fixing buckle 4 with the external threaded hole, the fastening bolt 5 is threaded through the fixing buckle 4 and connected to the external threaded hole to complete the installation of the main board 1. To determine the required dimensions of the LCD module, the first knob 22 is rotated to drive the first worm gear 21 to rotate. When the first worm gear 21 rotates, it cooperates with the first worm wheel 23 to drive the first bidirectional threaded rod 24 to rotate. When the first bidirectional threaded rod 24 rotates, it drives the connected first connecting blocks 27 on both sides to move. When the first connecting blocks 27 move, they drive the connected first sliding blocks... The movable plate 26 slides inside the mounting main plate 1. When the first sliding plate 26 slides, it drives the first gear 29 to move. When the first gear 29 moves, it drives the first transmission wheel 210 to rotate through its cooperation with the first fixed rack 28. When the first transmission wheel 210 rotates, it drives the second connecting block 213 to slide with the connected second sliding plate 214 through its cooperation with the second transmission wheel 211 and the transmission belt 212. The position of the vertical connecting seat 25 is adjusted by the sliding of the second sliding plate 214. When the second knob 216 is rotated, the second worm gear 215 moves vertically. Rotating the connecting seat 25 inwards, the second worm 215 rotates, and through its cooperation with the second worm wheel 217, drives the second bidirectional threaded rod 218 to rotate, thereby adjusting the sliding seats 219 connected to both sides to slide. After adjusting the telescopic assembly to the appropriate position, rotating the fourth knob 37 drives the second gear 36 to rotate. When the second gear 36 rotates, through its cooperation with the second fixed rack 38, it drives the limiting blocks 311 on both sides to slide inwards, retracting into the through groove of the second fixed seat 31. Then, rotating the rotating bracket 32 ​​drives the limiting plate 35 to rotate. After opening, install the LCD module on the second fixed base 31, then rotate the rotating bracket 32 ​​back to its original position. After releasing the fourth knob 37, the first spring 310 provides a pushing force to the limiting block 311, pushing the limiting block 311 to reset and re-limit the rotation of the rotating bracket 32. According to the thickness of the LCD module, rotate the third knob 34 to drive the first threaded rod 33 to rotate. When the first threaded rod 33 rotates, it drives the limiting plate 35 to slide on the rotating bracket 32, thereby driving the limiting plate 35 to move closer to the LCD module, thus completing the positioning and installation.

[0030] Through the above steps, by adjusting the first and second telescopic components, the position of the limiting component can be flexibly adjusted according to the size of different LCD modules. This solves the problem that fixed positioning mechanisms cannot flexibly accommodate LCD modules of different sizes.

Claims

1. A positioning structure for fixing a liquid crystal module, comprising a mounting main plate (1), characterized in that: It also includes a fixing buckle (4) fixedly connected to the mounting motherboard (1), a fastening bolt (5) set on the fixing buckle (4), a first worm gear (21) rotatably connected to the mounting motherboard (1), a first knob (22) fixedly connected to the first worm gear (21), a first worm wheel (23) meshing with the first worm gear (21), a first bidirectional threaded rod (24) fixedly connected to the first worm wheel (23), a first telescopic component set inside the mounting motherboard (1), a vertical connecting seat (25) set on the telescopic component, a second telescopic component set on the vertical connecting seat (25), and a limiting component set on the second telescopic component. The first bidirectional threaded rod (24) is rotatably connected inside the mounting motherboard (1). The horizontal length is adjusted by the first telescopic component, the vertical length is adjusted by the second telescopic component, and the limiting component limits the liquid crystal module.

2. The positioning structure for fixing a liquid crystal module according to claim 1, characterized in that: The mounting motherboard (1) has a limiting groove opened at the relative position of the first bidirectional threaded rod (24), and the first bidirectional threaded rod (24) is rotatably connected to the groove.

3. The positioning structure for fixing a liquid crystal module according to claim 1, wherein: The first telescopic assembly includes a first sliding plate (26) slidably connected inside the mounting main plate (1), a first connecting block (27) fixedly connected to the first sliding plate (26), a first fixed rack (28) fixedly connected inside the mounting main plate (1), a first gear (29) meshing with the first fixed rack (28), a first transmission wheel (210) fixedly connected to the first gear (29), a second transmission wheel (211) rotatably connected to the first sliding plate (26), a transmission belt (212) drivingly connected between the second transmission wheel (211) and the first transmission wheel (210), and a fixedly connected component to the transmission belt (212). The second connecting block (213) on the first sliding plate (26) is slidably connected to the second sliding plate (214). The first gear (29) is rotatably connected to the first sliding plate (26). The first connecting block (27) is threadedly connected to the first bidirectional threaded rod (24). The vertical connecting seat (25) is fixedly connected to one end of the second sliding plate (214). The first fixed rack (28) cooperates with the first gear (29) to drive the first transmission wheel (210) to rotate. When the first bidirectional threaded rod (24) rotates, it drives the first connecting block (27) to move. When the first connecting block (27) moves, it drives the first sliding plate (26) to slide.

4. The positioning structure for fixing a liquid crystal module according to claim 3, wherein: The first sliding plate (26) has a limiting groove at the relative position of the first gear (29), and the first gear (29) is rotatably connected to the groove.

5. The positioning structure for fixing a liquid crystal module according to claim 1, wherein: The second telescopic assembly includes a second worm (215) rotatably connected to a vertical connecting seat (25), a second knob (216) fixedly connected to one end of the second worm (215), a second worm wheel (217) meshing with the second worm (215), a second bidirectional threaded rod (218) fixedly connected to the second worm wheel (217), and a sliding seat (219) threadedly connected to the second bidirectional threaded rod (218). The sliding seat (219) is slidably connected to the vertical connecting seat (25). By rotating the second knob (216), the second worm (215) is driven to rotate. The second worm (215) and the second worm wheel (217) cooperate to drive the second bidirectional threaded rod (218) to rotate. The rotation of the second bidirectional threaded rod (218) drives the sliding seat (219) to slide inside the vertical connecting seat (25).

6. The positioning structure for fixing a liquid crystal module according to claim 5, wherein: The vertical connecting seat (25) has a limiting groove at the relative position of the second bidirectional threaded rod (218), and the second bidirectional threaded rod (218) is rotatably connected to the groove.

7. The positioning structure for fixing a liquid crystal module according to claim 1, wherein: The limiting assembly includes a second fixed seat (31) fixedly connected to one end of the vertical connecting seat (25), a rotating bracket (32) rotatably connected to the second fixed seat (31), a first threaded rod (33) rotatably connected to the rotating bracket (32), a third knob (34) fixedly connected to one end of the first threaded rod (33), a limiting plate (35) threadedly connected to the first threaded rod (33), a second gear (36) rotatably connected to the second fixed seat (31), a fourth knob (37) fixedly connected to the second gear (36), and a second fixed rack (38) meshing with the second gear (36). A third connecting plate (39) is fixedly connected to the second fixed seat (31), a limiting block (311) is fixedly connected to the second fixed rack (38), and a first spring (310) is fixedly connected between the limiting block (311) and the third connecting plate (39). The limiting block (311) is slidably connected to the second fixed seat (31). By rotating the fourth knob (37), the second gear (36) is driven to rotate. The second gear (36) cooperates with the second fixed rack (38) to drive the limiting block (311) to move. The limiting block (311) restricts the rotation of the rotating bracket (32).

8. The positioning structure for fixing a liquid crystal module according to claim 7, wherein: The second fixed seat (31) has a through groove at the relative position of the limiting block (311), and the limiting block (311) is slidably connected inside the through groove.

Images