Carrier adjustment plate height fine tuning knob structure

Abstract

The utility model relates to fine adjustment knob technical field discloses carrier adjusting plate height fine adjustment knob structure, including main part box, the first worm is rotatively connected with in the main part box inner wall back, a plurality of limit hole are seted up in the first worm surface, the first worm top meshing has the first worm wheel, gear is fixedly connected with the first worm wheel left side, the gear rear side meshing has the rack, the rack top fixedly connected with the lifting piece, the lifting piece top front side is provided with the adjusting plate main part, the main part box front side fixedly connected with the fixed box. In the utility model, by pressing the pressing rod, the sliding part is driven to extrude the second spring, thereby driving the limit rod to drop and insert in the limit hole, at this moment, the locking block of right side is clamped the sliding part under the action of first spring, thereby fixing the sliding part, thereby realizes the first knob fixed when not using, prevents the rotation caused by the accidental touch and the collision.

Description

Technical Field

[0001] This utility model relates to the field of fine-tuning knob technology, and in particular to the structure of a fine-tuning knob for adjusting the height of a vehicle adjustment plate. Background Technology

[0002] With the increasing demand for diverse and sophisticated vehicles, the precise height adjustment of vehicle adjustment panels, as an important component, is crucial for optimizing vehicle performance, ensuring safe cargo transportation, and enhancing passenger comfort. For example, in logistics vehicles, the height of the tiered adjustment panels inside the cargo compartment directly affects the classification, storage, and securing of goods. In engineering vehicles, the fine-tuning of the work platform height can adapt to different operational scenarios and needs. In special vehicles such as fire trucks and ambulances, the height adjustment of the internal equipment mounting platform is essential for the efficiency of rescue operations in emergency situations.

[0003] In the existing knob structure, accidental touch of the knob can trigger height adjustment, causing the height of the adjustment plate to be affected by external factors, thus affecting the normal use of the vehicle and creating safety hazards due to accidental touch in complex operating environments. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a vehicle adjustment plate height fine-tuning knob structure, which aims to improve the safety hazard caused by accidental rotation when the existing knob structure is accidentally activated.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carrier adjustment plate height fine-tuning knob structure, including a main body box, a first worm gear rotatably connected to the rear side of the inner wall of the main body box, a plurality of limiting holes being opened on the surface of the first worm gear, a first worm wheel meshing with the top of the first worm gear, a gear fixedly connected to the left side of the first worm wheel, a rack meshing with the rear side of the gear, a lifting component fixedly connected to the top of the rack, an adjustment plate main body being provided on the front side of the top of the lifting component, a fixed box being fixedly connected to the front side of the main body box, a sliding component being slidably connected to the front and rear sides of the inner wall of the fixed box, a second spring being fixedly connected to the bottom of the sliding component, the bottom end of the second spring being fixedly connected to the inner wall of the fixed box, a first spring being fixedly connected to the right side of the inner wall of the fixed box, a locking block being fixedly connected to the left end of the first spring, a limiting rod being fixedly connected to the bottom of the sliding component, and a disassembly assembly being provided inside the adjustment plate main body for quick disassembly.

[0006] Preferably, the disassembly assembly includes two threaded rods, with opposite ends of the two threaded rods rotatably connected to the inner wall of the adjusting plate body. A second worm gear is fixedly connected between the two threaded rods, and a second worm is meshed with the front side of the second worm gear. Locking elements are threaded onto the surfaces of both threaded rods.

[0007] Preferably, the top end of the second worm gear is rotatably connected to the inner wall of the adjusting plate body, the bottom end of the second worm gear passes through and extends to the bottom of the adjusting plate body, and a second knob is fixedly connected to the bottom end of the second worm gear.

[0008] Preferably, the lifting component has connecting grooves on both the top of its left and right sides.

[0009] Preferably, the front end of the first worm gear extends through and to the front side of the main body box, and a first knob is fixedly connected to the front end of the first worm gear.

[0010] Preferably, a pressing rod is fixedly connected to the top of the sliding member, the top end of the pressing rod extends through and to the top of the fixed box, and the pressing rod is slidably connected to the fixed box.

[0011] Preferably, two connectors are fixedly connected to each of the left and right sides of the main body box, and screw holes are provided on the surface of each of the four connectors.

[0012] Preferably, the right end of the first worm gear is rotatably connected to the inner wall of the main body box, and the left end of the gear is rotatably connected to the inner wall of the main body box.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, pressing the pressing rod causes the sliding part to squeeze the second spring, thereby causing the limiting rod to descend and insert into the limiting hole. At this time, the locking block on the right side is locked by the first spring, thereby fixing the sliding part. This achieves the fixation of the first knob when not in use, preventing accidental touch and collision from causing rotation and leading to safety hazards.

[0015] 2. In this utility model, rotating the second knob drives the second worm gear to rotate, which in turn drives the second worm wheel to rotate. When the second worm wheel rotates, it drives the threaded rods on both sides to rotate. The threaded rods drive the locking parts on their surfaces to move, and the two locking parts are inserted into the connecting groove, thereby enabling the quick installation and disassembly of the adjustment plate body. Attached Figure Description

[0016] Figure 1 This is a main diagram of the vehicle adjustment plate height fine-tuning knob structure proposed in this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the main box of the vehicle adjustment plate height fine-tuning knob structure proposed in this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the fixing box of the vehicle adjustment plate height fine-tuning knob structure proposed in this utility model;

[0019] Figure 4This is a schematic cross-sectional view of the main body of the vehicle adjustment plate height fine-tuning knob structure proposed in this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Main body box; 2. Connector; 3. First knob; 4. Fixing box; 5. Lifting component; 6. Rack; 7. Adjustment plate body; 8. Second knob; 9. Pressing rod; 10. Locking block; 11. First worm gear; 12. First worm wheel; 13. Gear; 14. Limiting hole; 15. Sliding component; 16. First spring; 17. Second spring; 18. Threaded rod; 19. Locking component; 20. Second worm gear; 21. Second worm wheel; 22. Limiting rod; 23. Connecting groove. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a vehicle adjustment plate height fine-tuning knob structure, including a main body box 1. A first worm gear 11 is rotatably connected to the rear side of the inner wall of the main body box 1. The surface of the first worm gear 11 has multiple limiting holes 14. A first worm wheel 12 is meshed with the top of the first worm gear 11. A gear 13 is fixedly connected to the left side of the first worm wheel 12. A rack 6 is meshed with the rear side of the gear 13. A lifting component 5 is fixedly connected to the top of the rack 6. An adjustment plate body 7 is provided on the front side of the top of the lifting component 5. A fixed box 4 is fixedly connected to the front side of the main body box 1. Sliding components 15 are slidably connected to the front and rear sides of the inner wall of the fixed box 4. A second spring 17 is fixedly connected to the bottom of the sliding component 15. The bottom end of the second spring 17 is fixedly connected to the inner wall of the fixed box 4. A first spring 16 is fixedly connected to the right side of the inner wall of the fixed box 4. A locking block 10 is fixedly connected to the left end of the first spring 16. A limiting rod 22 is fixedly connected to the bottom of the sliding component 15. A disassembly assembly is provided inside the adjustment plate body 7 for quick disassembly.

[0025] Specifically, pressing the push rod 9 causes the sliding member 15 to compress the second spring 17, thereby causing the limiting rod 22 to descend and insert into the limiting hole 14. At this time, the locking block 10 on the right side, under the action of the first spring 16, locks the sliding member 15, thus fixing the sliding member 15. This achieves the fixation of the first knob 3 when not in use, preventing accidental contact and collision that could cause rotation and lead to safety hazards. When rotation is required, moving the locking block 10 compresses the first spring 16 on the right side. At this time, the locking block 10 disengages from the sliding member 15, and the sliding member 15 is then lifted by the action of the second spring 17, causing the limiting rod 22 to disengage from the limiting hole 14. At this time, the first knob 3 can rotate normally. When button 3 is rotated, it drives the first worm gear 11 on the rear side to rotate. The first worm gear 11 drives the first worm wheel 12 on the top to rotate. The first worm wheel 12 drives the gear 13 on the left side to rotate. The gear 13 drives the rack 6 to move up and down inside the main body box 1. Since the worm and worm wheel transmission has a large transmission ratio, the worm usually has fewer teeth and the worm wheel has more teeth. When the worm rotates one revolution, the worm wheel rotates at a relatively small angle, thus achieving fine transmission. In addition, the worm and worm wheel transmission also has a self-locking characteristic, that is, only the worm can drive the worm wheel to rotate, and the worm wheel cannot drive the worm to rotate. This helps to maintain the stability of the adjusted position and prevent the adjusting plate from moving unexpectedly.

[0026] Reference Figure 4 and Figure 5 The disassembly assembly includes two threaded rods 18, with opposite ends of the two threaded rods 18 rotatably connected to the inner wall of the adjusting plate body 7. A second worm gear 21 is fixedly connected between the two threaded rods 18, and a second worm 20 is meshed with the front side of the second worm gear 21. Locking elements 19 are threadedly connected to the surfaces of the two threaded rods 18.

[0027] Specifically, by rotating the second worm 20, the second worm wheel 21 is driven to rotate, which in turn drives the threaded rods 18 on both sides to rotate. The thread directions of the two threaded rods 18 are opposite, thereby driving the two locking parts 19 to move relative to each other when rotating.

[0028] Reference Figure 4 The top end of the second worm gear 20 is rotatably connected to the inner wall of the adjusting plate body 7, and the bottom end of the second worm gear 20 extends through and to the bottom of the adjusting plate body 7. The bottom end of the second worm gear 20 is fixedly connected to the second knob 8.

[0029] Specifically, by rotating the second knob 8, the second worm gear 20 is driven to rotate, thereby enabling rapid adjustment of the two locking parts 19.

[0030] Reference Figure 4 The top of both sides of the lifting component 5 is provided with connecting grooves 23.

[0031] Specifically, by inserting two locking pieces 19 into two connecting slots 23, the lifting piece 5 and the main body of the adjusting plate 7 can be quickly installed and disassembled, allowing for rapid replacement of damaged adjusting plates and reducing vehicle downtime for maintenance.

[0032] Reference Figure 2 The front end of the first worm gear 11 passes through and extends to the front side of the main body box 1, and the front end of the first worm gear 11 is fixedly connected to the first knob 3.

[0033] Specifically, by rotating the first knob 3, the first worm gear 11 is rotated, thereby enabling fine adjustment of the height of the top adjustment plate body 7.

[0034] Reference Figure 2 A pressing rod 9 is fixedly connected to the top of the sliding member 15. The top end of the pressing rod 9 passes through and extends to the top of the fixed box 4, and the pressing rod 9 is slidably connected to the fixed box 4.

[0035] Specifically, by pressing the pressing rod 9, the limiting rod 22 at the bottom of the drive is inserted into the limiting hole 14, thereby quickly fixing the first knob 3 and preventing accidental contact that could cause rotation and create a safety hazard.

[0036] Reference Figure 1 The main body box 1 has two connectors 2 fixedly connected to both the left and right sides, and each of the four connectors 2 has screw holes on its surface.

[0037] Specifically, the four connectors 2 can be fixed with screws to achieve the fixed installation of the main body box 1.

[0038] Reference Figure 2 The right end of the first worm gear 12 is rotatably connected to the inner wall of the main body box 1, and the left end of the gear 13 is rotatably connected to the inner wall of the main body box 1.

[0039] Specifically, the first worm gear 12 drives the gear 13 to rotate, and fine-tuning and self-locking are achieved through the characteristics between the worm and the worm gear.

[0040] Working principle: When using the height fine-tuning knob structure of the vehicle's adjustment plate, the user first fixes the four connecting parts 2 with screws to complete the installation of the main body box 1. When the height of the main body 7 of the adjustment plate needs to be adjusted, the first knob 3 is turned, which drives the first worm gear 11 to rotate. The first worm gear 11 drives the first worm wheel 12 to rotate, and the first worm wheel 12 drives the gear 13 to rotate. The gear 13 causes the rack 6 to move up and down, thereby achieving fine-tuning of the height of the main body 7 of the adjustment plate. When no adjustment is needed, the pressing rod 9 is pressed, which drives the sliding part 15 to squeeze the second spring 17, causing the limiting rod 22 to descend and insert into the limiting hole 14. At this time, the locking block 10 is locked by the sliding part 15 under the action of the first spring 16, fixing the first knob 3 to prevent accidental touch. When rotation is needed, the locking block 10 is moved to squeeze the first spring 16 on the right side. At this time, the locking block 10 is disengaged from the sliding part 15. At this time, the sliding part 15 is pushed up by the action of the second spring 17, which drives the limiting rod 22 to disengage from the limiting hole 14. At this time, the first knob 3 can rotate normally.

[0041] To disassemble the main body 7 of the adjustment plate, turn the second knob 8 to rotate the second worm gear 20. The second worm gear 20 drives the second worm wheel 21 to rotate, causing the threaded rods 18 on both sides to rotate. This causes the locking piece 19 to disengage from the connecting groove 23, enabling the quick disassembly of the lifting piece 5 and the main body 7 of the adjustment plate, so as to replace the damaged adjustment plate and reduce the vehicle's downtime for maintenance.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle height adjustment knob structure, comprising a main body box (1), characterized in that: The rear side of the inner wall of the main body box (1) is rotatably connected to a first worm gear (11). The surface of the first worm gear (11) is provided with multiple limiting holes (14). The top of the first worm gear (11) is meshed with a first worm wheel (12). The left side of the first worm wheel (12) is fixedly connected to a gear (13). The rear side of the gear (13) is meshed with a rack (6). The top of the rack (6) is fixedly connected to a lifting component (5). The front side of the top of the lifting component (5) is provided with an adjusting plate body (7). The front side of the main body box (1) is fixedly connected to a fixing box (4). The inner wall of the fixed box (4) is slidably connected to the front and rear sides of the sliding parts (15). The bottom of the sliding parts (15) is fixedly connected to the second spring (17). The bottom end of the second spring (17) is fixedly connected to the inner wall of the fixed box (4). The right side of the inner wall of the fixed box (4) is fixedly connected to the first spring (16). The left end of the first spring (16) is fixedly connected to the locking block (10). The bottom of the sliding parts (15) is fixedly connected to the limit rod (22). The main body of the adjusting plate (7) is provided with a disassembly assembly, which is used for quick disassembly.

2. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The disassembly assembly includes two threaded rods (18), with opposite ends of the two threaded rods (18) rotatably connected to the inner wall of the adjusting plate body (7). A second worm gear (21) is fixedly connected between the two threaded rods (18), and a second worm (20) is meshed with the front side of the second worm gear (21). Locking elements (19) are threadedly connected to the surfaces of the two threaded rods (18).

3. The vehicle adjustment plate height fine-tuning knob structure according to claim 2, characterized in that: The top end of the second worm (20) is rotatably connected to the inner wall of the adjusting plate body (7), the bottom end of the second worm (20) passes through and extends to the bottom of the adjusting plate body (7), and the bottom end of the second worm (20) is fixedly connected to a second knob (8).

4. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The lifting component (5) has connecting grooves (23) on both the top of its left and right sides.

5. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The front end of the first worm (11) extends through and to the front side of the main body box (1), and the front end of the first worm (11) is fixedly connected to the first knob (3).

6. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The top of the sliding member (15) is fixedly connected to a pressing rod (9), the top end of the pressing rod (9) passes through and extends to the top of the fixed box (4), and the pressing rod (9) is slidably connected to the fixed box (4).

7. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The main body box (1) is fixedly connected to two connectors (2) on both the left and right sides, and each of the four connectors (2) has a screw hole on its surface.

8. The vehicle adjustment plate height fine-tuning knob structure according to claim 1, characterized in that: The right end of the first worm gear (12) is rotatably connected to the inner wall of the main body box (1), and the left end of the gear (13) is rotatably connected to the inner wall of the main body box (1).

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