Rack holding tooth locking device

Abstract

The utility model relates to the technical field of emergency braking, in particular to a rack holding tooth locking device which comprises a supporting seat, a rack body, a fixing block, fixing teeth and a locking mechanism, a supporting through groove is formed in the supporting seat, a supporting groove is formed in the side wall of the supporting through groove, the rack body is arranged in the supporting through groove in a sliding mode, and the fixing block is arranged in the supporting groove. A plurality of fixing teeth are fixedly arranged on the side wall of the side, close to the supporting through groove, of the fixing block, the locking mechanism is arranged in the supporting groove and used for controlling the fixing teeth to move, the locking mechanism comprises a supporting block, a supporting spring and a moving mechanism, the supporting block is arranged in the supporting seat in a sliding mode, and the supporting block is provided with the fixing groove; the fixing block is arranged in the fixing groove in a sliding mode, a plurality of supporting springs are fixedly arranged between the fixing block and the groove bottom of the fixing groove, the moving mechanism is arranged at the groove bottom of the supporting groove, and by means of the technical scheme, the problem that in the related technology, in the working process, a rack is not convenient to rapidly and firmly lock is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency braking, in particular to a rack gear locking device. Background Art

[0002] The rack and pinion mechanism transmits force and motion through the meshing of gears and racks. It is one of the common mechanisms in mechanical transmission. In mechanical systems, it is sometimes necessary to lock the rack and pinion mechanism to achieve the required effect.

[0003] In the prior art, the rack is generally locked by a nut locking method or an annular spring method. The nut locking method is a relatively simple locking method. By installing a nut on the gear shaft and a washer next to it, the position of the nut can be changed by adjusting the number and thickness of the washers, thereby forming a locking effect. However, this method is not strong enough and is easy to loosen. The annular spring method is to install an annular spring on the gear shaft, compress it and clamp it on the shaft to form a certain restraining force, thereby forming a locking effect. However, this method causes certain damage to the shaft. Both methods are not convenient for quickly and firmly locking the rack, thereby affecting the working effect of the rack. Utility Model Content

[0004] The utility model provides a rack gear locking device, which solves the problem in the related art that the rack is not easy to lock quickly and firmly during operation.

[0005] The technical solution of the utility model is as follows: a rack tooth locking device includes a support seat, a rack body, a fixed block, fixed teeth and a locking mechanism, the support seat is provided with a support groove, the side wall of the support groove is provided with a support groove, the rack body is slidably arranged in the support groove, the fixed block is arranged in the support groove, and a plurality of fixed teeth are fixedly arranged on the side wall of the fixed block close to the support groove, and the locking mechanism is arranged in the support groove for controlling the movement of the fixed teeth.

[0006] Preferably, the locking mechanism includes:

[0007] A support block, the support block is slidably arranged in the support seat, and a fixing groove is formed on the support block;

[0008] Wherein, the fixing block is slidably arranged in the fixing groove;

[0009] Support springs, a plurality of support springs are fixedly arranged between the fixing block and the bottom of the fixing groove;

[0010] The moving mechanism is arranged at the bottom of the supporting groove and is used to control the movement of the supporting block.

[0011] Furthermore, the moving mechanism includes:

[0012] An adjusting groove, the adjusting groove being provided at the bottom of the supporting groove;

[0013] An adjusting disk, wherein a plurality of adjusting disks are rotatably arranged in the adjusting slot;

[0014] An adjusting block, the adjusting block being fixedly arranged on a side wall of the adjusting disk;

[0015] A driving mechanism is provided in the supporting seat and is used to control the multiple adjusting disks to rotate synchronously.

[0016] Furthermore, a plurality of return springs are fixedly arranged between the support block and the bottom of the support groove.

[0017] Furthermore, the driving mechanism includes:

[0018] A driving groove, the driving groove is opened on one side of the adjusting groove;

[0019] A first gear, wherein a plurality of first gears are rotatably disposed in the driving slot, and the plurality of first gears correspond one to one to the plurality of adjusting disks;

[0020] a driving rod, the driving rod being fixedly disposed between the first gear and the adjusting disk;

[0021] A power input mechanism is provided in the driving slot and is used to control the first gears to rotate synchronously.

[0022] On the basis of the above solution, the power input mechanism includes:

[0023] a first rack, the first rack being slidably disposed in the driving groove and meshing with the first gear;

[0024] An electric push rod is fixedly arranged on the support seat, and an output end of the electric push rod is fixedly connected to the first rack.

[0025] On the basis of the above solution, a mounting plate is fixedly provided on the side wall of the support seat, a mounting opening is provided on the mounting plate, and a mounting bolt is provided through the mounting opening.

[0026] On the basis of the above solution, an adjusting slot is fixedly provided on the side wall of the adjusting block, an adjusting roller is rotatably provided in the adjusting slot, and the adjusting roller is in contact with the supporting block.

[0027] Based on the above solution, the side wall of the adjusting roller is wrapped with a rubber pad.

[0028] Based on the above solution, a positioning column is fixedly provided in the adjustment groove on one side of the adjustment disk.

[0029] The working principle and beneficial effects of the utility model are as follows:

[0030] 1. In the present invention, the locking mechanism facilitates the movement of the support block by the operation of the moving mechanism, and the movement of the support block drives the support spring and the fixed block to move. During this process, the rack body can be locked by the engagement of the fixed teeth on the fixed block with the convex teeth on the rack body. At the same time, the support spring ensures that the fixed teeth are engaged with the rack body during the movement of the support block, while avoiding damage to the rack body caused by hard compression between the fixed teeth and the rack body.

[0031] 2. In the utility model, through the operation of the moving mechanism, the operation of the electric push rod can drive the first rack to move, and at the same time, the meshing of the first rack and the first gear drives the first gear, the driving rod and the adjusting disk to rotate synchronously. Then, during the rotation of the adjusting disk, the adjusting roller is driven to move around the adjusting disk through the adjusting block, so that the support block can be driven to move by the squeezing of the support block by the adjusting roller. At the same time, after the locking is completed, the support block and the fixed block can be reset under the action of the reset spring;

[0032] 3. In the present invention, the positioning post is provided to facilitate limiting the movement range of the positioning post and the adjustment block, thereby preventing the rack body from loosening due to continued rotation of the adjustment disk after the rack body reaches the maximum locking effect;

[0033] 4. In the utility model, through the arrangement of the support seat, the rack body, the fixed block, the fixed teeth and the locking mechanism, it is convenient to drive the fixed teeth to engage with the convex teeth on the rack body through the movement of the fixed block, thereby achieving the locking of the rack body, thereby solving the problem in the related art that the rack is not easy to lock quickly and firmly during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0035] Figure 1 This is a schematic diagram of the structure of the utility model;

[0036] Figure 2 This is a structural schematic diagram of another perspective of the utility model;

[0037] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0038] Figure 4This is a schematic cross-sectional view of the moving mechanism of the present invention;

[0039] Figure 5 This is a schematic cross-sectional view of the driving mechanism of the present invention.

[0040] In the figure: 1. Support seat; 2. Rack body; 3. Fixed block; 4. Fixed tooth; 5. Support block; 6. Support spring; 7. Support slot; 8. Adjustment slot; 9. Adjustment disk; 10. Adjustment block; 11. Return spring; 12. First gear; 13. Drive rod; 14. First rack; 15. Electric push rod; 16. Mounting plate; 17. Adjustment roller; 18. Positioning column. DETAILED DESCRIPTION

[0041] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] like Figure 1-Figure 5 As shown, this embodiment proposes a rack tooth locking device, including a support seat 1, a rack body 2, a fixed block 3, fixed teeth 4 and a locking mechanism. A support groove is provided on the support seat 1, and a support groove 7 is provided on the side wall of the support groove. The rack body 2 is slidably arranged in the support groove, and the fixed block 3 is arranged in the support groove 7. A plurality of fixed teeth 4 are fixedly arranged on the side wall of the fixed block 3 close to the support groove. The locking mechanism is arranged in the support groove 7 for controlling the movement of the fixed teeth 4.

[0043] Reference Figure 2-Figure 4 The locking mechanism includes a support block 5, a support spring 6 and a moving mechanism. The support block 5 is slidably arranged in the support seat 1. A fixed groove is provided on the support block 5, wherein the fixed block 3 is slidably arranged in the fixed groove. A plurality of support springs 6 are fixedly arranged between the fixed block 3 and the bottom of the fixed groove. The moving mechanism is arranged at the bottom of the support groove 7 for controlling the movement of the support block 5.

[0044] Specifically, the support block 5 can be driven to move through the operation of the moving mechanism, and the support spring 6 and the fixed block 3 can be driven to move through the movement of the support block 5. In this process, the rack body 2 can be locked by the engagement of the fixed teeth 4 on the fixed block 3 with the convex teeth on the rack body 2. At the same time, through the setting of the support spring 6, the engagement of the fixed teeth 4 with the rack body 2 can be ensured during the movement of the support block 5, and the damage to the rack body 2 caused by hard extrusion between the fixed teeth 4 and the rack body 2 can be avoided.

[0045] Reference Figure 3-Figure 5 The moving mechanism includes an adjusting slot 8, an adjusting disk 9, an adjusting block 10 and a driving mechanism. The adjusting slot 8 is opened at the bottom of the supporting slot 7. A plurality of adjusting disks 9 are rotatably arranged in the adjusting slot 8. The adjusting block 10 is fixedly arranged on the side wall of the adjusting disk 9. The driving mechanism is arranged in the support seat 1 for controlling the synchronous rotation of the plurality of adjusting disks 9. A plurality of return springs 11 are fixedly arranged between the support block 5 and the bottom of the supporting slot 7. The driving mechanism includes a driving slot, a first gear 12, a driving rod 13 and a power input mechanism. The driving slot is opened on one side of the adjusting slot 8. A plurality of first gears 12 are rotatably arranged in the driving slot. Between the plurality of first gears 12 and the plurality of adjusting disks 9 One-to-one correspondence, the driving rod 13 is fixedly arranged between the first gear 12 and the adjusting disk 9, and the power input mechanism is arranged in the driving groove, which is used to control the multiple first gears 12 to rotate synchronously. The power input mechanism includes a first rack 14 and an electric push rod 15. The first rack 14 is slidably arranged in the driving groove, and the first rack 14 is engaged with the first gear 12. The electric push rod 15 is fixedly arranged on the support seat 1, and the output end of the electric push rod 15 is fixedly connected to the first rack 14. An adjusting groove is fixedly provided on the side wall of the adjusting block 10, and an adjusting roller 17 is rotatably provided in the adjusting groove. The adjusting roller 17 is in contact with the support block 5, and the side wall of the adjusting roller 17 is wrapped with a rubber pad.

[0046] Specifically, the operation of the electric push rod 15 can drive the first rack 14 to move, and at the same time, the engagement of the first rack 14 with the first gear 12 drives the first gear 12, the drive rod 13 and the adjusting disk 9 to rotate synchronously. Then, during the rotation of the adjusting disk 9, the adjusting roller 17 is driven to move around the adjusting disk 9 through the adjusting block 10, so that the support block 5 can be driven to move by squeezing the support block 5 by the adjusting roller 17. At the same time, after the locking is completed, the support block 5 and the fixed block 3 can be reset under the action of the reset spring 11.

[0047] Reference Figure 1-Figure 4 A mounting plate 16 is fixedly provided on the side wall of the support seat 1. A mounting opening is provided on the mounting plate 16. A mounting bolt is provided through the mounting opening. The support seat 1 can be installed and fixed by the mounting bolt.

[0048] Reference Figure 4 A positioning column 18 is fixedly provided on one side of the adjusting disk 9 in the adjusting groove 8, and the moving range of the positioning column 18 and the adjusting block 10 can be used to limit the position, thereby preventing the rack body 2 from loosening due to the continued rotation of the adjusting disk 9 after the rack body 2 reaches the maximum locking effect.

[0049] In this embodiment, the operation of the electric push rod 15 can drive the first rack 14 to move, and at the same time, the first rack 14 is engaged with the first gear 12 to drive the first gear 12, the driving rod 13 and the adjusting disk 9 to rotate synchronously. Then, during the rotation of the adjusting disk 9, the adjusting roller 17 is driven to move around the adjusting disk 9 through the adjusting block 10, so that the support block 5 can be driven to move by the squeezing of the support block 5 by the adjusting roller 17, and the support spring 6 and the fixed block 3 can be driven to move by the movement of the support block 5. In this process, the fixed block 3 can be driven to move. The engagement of the fixed teeth 4 on the block 3 with the convex teeth on the rack body 2 realizes the locking of the rack body 2. At the same time, through the setting of the support spring 6, the engagement of the fixed teeth 4 with the rack body 2 can be ensured during the movement of the support block 5, and the damage to the rack body 2 caused by hard squeezing between the fixed teeth 4 and the rack body 2 can be avoided. In this process, the moving range of the positioning column 18 and the adjustment block 10 can be limited to avoid the loosening of the rack body 2 due to the continued rotation of the adjustment disk 9 after the rack body 2 reaches the maximum locking effect.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The rack gear locking device is characterized by: include: A support seat (1), wherein a support slot is provided on the support seat (1), and a support slot (7) is provided on a side wall of the support slot; A rack body (2), the rack body (2) being slidably disposed in the supporting through groove; A fixed block (3), the fixed block (3) being arranged in the supporting groove (7); Fixed teeth (4), a plurality of fixed teeth (4) are fixedly provided on the side wall of the fixed block (3) close to the supporting through slot; A locking mechanism is provided in the support groove (7) and is used to control the movement of the fixed tooth (4).

2. The rack gear locking device according to claim 1, characterized in that: The locking mechanism comprises: A support block (5), the support block (5) being slidably disposed in the support seat (1), and a fixing groove being provided on the support block (5); Wherein, the fixing block (3) is slidably arranged in the fixing groove; Support springs (6), a plurality of support springs (6) are fixedly arranged between the fixing block (3) and the bottom of the fixing groove; A moving mechanism is provided at the bottom of the support groove (7) and is used to control the movement of the support block (5).

3. The rack gear locking device according to claim 2, characterized in that: The moving mechanism comprises: An adjusting groove (8), the adjusting groove (8) being provided at the bottom of the supporting groove (7); An adjusting disk (9), wherein a plurality of adjusting disks (9) are rotatably arranged in the adjusting slot (8); An adjusting block (10), the adjusting block (10) being fixedly arranged on a side wall of the adjusting disk (9); A driving mechanism is provided in the support seat (1) and is used to control the synchronous rotation of the plurality of adjusting disks (9).

4. The rack gear locking device according to claim 3, characterized in that: A plurality of return springs (11) are fixedly arranged between the support block (5) and the bottom of the support groove (7).

5. The rack gear locking device according to claim 4, characterized in that: The driving mechanism comprises: A driving groove, the driving groove being opened on one side of the adjusting groove (8); A first gear (12), wherein a plurality of the first gears (12) are rotatably arranged in the driving groove, and the plurality of the first gears (12) correspond one to one to the plurality of the adjusting disks (9); A driving rod (13), the driving rod (13) being fixedly arranged between the first gear (12) and the adjusting disk (9); A power input mechanism is provided in the driving slot and is used to control the plurality of first gears (12) to rotate synchronously.

6. The rack gear locking device according to claim 5, characterized in that: The power input mechanism comprises: a first rack (14), wherein the first rack (14) is slidably disposed in the driving groove, and the first rack (14) is meshed with the first gear (12); An electric push rod (15), wherein the electric push rod (15) is fixedly arranged on the support seat (1), and an output end of the electric push rod (15) is fixedly connected to the first rack (14).

7. The rack gear locking device according to claim 6, characterized in that: A mounting plate (16) is fixedly provided on the side wall of the support seat (1), and a mounting opening is provided on the mounting plate (16), and a mounting bolt is provided through the mounting opening.

8. The rack gear locking device according to claim 7, characterized in that: An adjusting slot is fixedly provided on the side wall of the adjusting block (10), an adjusting roller (17) is rotatably provided in the adjusting slot, and the adjusting roller (17) is in contact with the supporting block (5).

9. The rack gear locking device according to claim 8, characterized in that: The side wall of the regulating roller (17) is wrapped with a rubber pad.

10. The rack gear locking device according to claim 9, characterized in that: A positioning column (18) is fixedly provided in the adjustment groove (8) on one side of the adjustment disk (9).

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