Hidden auxiliary wheel support arm driving mechanism

Abstract

The utility model relates to the technical field of vehicle auxiliary wheel driving devices, in particular to a hidden type auxiliary wheel supporting arm driving mechanism which comprises an auxiliary wheel supporting arm assembly connected with an auxiliary wheel, a driving module caulking groove is formed in the auxiliary wheel supporting arm assembly, and the auxiliary wheel supporting arm assembly is buckled through a caulking groove cover plate to form a mounting chamber used for mounting a driving module. The driving module is connected with a driving gear shaft, and the caulking groove cover plate is provided with a driving gear shaft through hole through which the driving gear shaft can penetrate; the electric bicycle further comprises a bicycle frame fixing plate arranged on the outer side of the caulking groove cover plate, the bicycle frame fixing plate is hinged to the caulking groove cover plate through a rotating shaft, and a rack capable of being meshed with the driving gear shaft is arranged on the bicycle frame fixing plate. The auxiliary wheel device is simple in structure and high in control precision, the driving module can be effectively protected, and the service life of the auxiliary wheel device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle auxiliary wheel driving devices, in particular to a hidden auxiliary wheel support arm driving mechanism. Background Art

[0002] The auxiliary wheel device for two-wheeled vehicles is mainly used for two-wheeled electric vehicles, including electric bicycles or motorcycles, etc., and usually includes auxiliary wheels, a drive assembly and a transmission assembly, wherein the auxiliary wheels are installed on the transmission assembly, and the drive assembly is used to drive the transmission assembly so that the auxiliary wheels are close to or separated from the ground, thereby achieving the purpose of assisting the vehicle in a stopped or slowed state.

[0003] The Chinese invention patent with the publication (announcement) number CN117163192A discloses an auxiliary wheel device for a motorcycle, including a flat fork clamping member, wherein the flat fork clamping members are symmetrically arranged on the left support arm and the right support arm of the rear flat fork, and the two flat fork clamping members are also connected by a clamping member connecting rod penetrating the hollow shaft of the rear wheel; a folding arm assembly, wherein the folding arm assembly includes an upper support arm and a lower support arm connected to each other by an axis, and the upper support arm rotation end of the upper support arm is movably connected to the flat fork clamping member. The bottom end of the lower arm is connected with a roller; it also includes a lower arm pull rod, one end of which is connected to the lower arm shaft connecting column shaft arranged on the inner side of the lower arm, and the rotating end of the pull rod of the lower arm pull rod is movably connected to the flat fork clamp; a folding drive mechanism, the folding drive mechanism includes a worm gear reducer, and a transmission gear rod driven by the worm gear reducer to make circular arc motion, the transmission gear rod includes a transmission rod and a gear rod connected to each other, and the transmission rod is connected to the rotating end of the upper arm. The device is not only simple in structure, small in space, and high in control accuracy, but also can be well adapted to motorcycles, increase auxiliary support during motorcycle driving, such as slow speed, parking or turning, and can effectively improve the safety of motorcycle driving, bringing a good driving experience to the driver.

[0004] However, its folding drive mechanism is external, which not only occupies a certain amount of external space, but is also susceptible to collision with objects in the external environment, thereby causing damage or even damage to the device. It also fails to provide guarantee for the normal operation of the training wheels, increasing the safety risk of the driver.

[0005] Therefore, a new technical solution is urgently needed to solve this technical problem. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and provide a hidden auxiliary wheel support arm drive mechanism to solve the technical problems that the existing auxiliary wheel device adopts an external drive mechanism, which occupies a certain external space and is easily hit by objects in the external environment, thereby causing damage or even damage to the device, and cannot provide guarantee for the normal operation of the auxiliary wheel, thereby increasing the safety risk of the driver.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A hidden auxiliary wheel arm drive mechanism comprises an auxiliary wheel arm assembly connected to an auxiliary wheel, the auxiliary wheel arm assembly is provided with a drive module embedding groove, and is buckled with a embedding groove cover plate to form an installation chamber for installing the drive module; the drive module is connected to a drive gear shaft, and the embedding groove cover plate is provided with a drive gear shaft through hole for the drive gear shaft to pass through; and also comprises a frame fixing plate arranged on the outside of the embedding groove cover plate, the frame fixing plate and the embedding groove cover plate are hinged by a rotating shaft, and a rack that can mesh with the drive gear shaft is arranged on the frame fixing plate.

[0009] Furthermore, the inner side surface of the frame fixing plate serves as a rotating surface, and a rack boss is arranged on the rotating surface, and a rack embedding groove for embedding and installing the rack is arranged on the rack boss.

[0010] Furthermore, the rack is in an arc shape.

[0011] Furthermore, the embedded groove cover plate is in a stepped shape, including a first step surface and a second step surface connected to each other, the first step surface is higher than the second step surface; the first step surface corresponds to the rotating surface.

[0012] Furthermore, the rotating shaft is installed on the first stepped table surface, and the driving gear shaft through hole is arranged on the first stepped table surface.

[0013] Furthermore, a first shaft through hole is formed on the first stepped table surface, a second shaft through hole corresponding to the first shaft through hole is formed on the rotating surface, and the shaft passes through the first shaft through hole and the second shaft through hole respectively.

[0014] Furthermore, the rotating shaft also includes a rotation stop seat, and correspondingly, a rotation stop seat embedding groove in which the rotation stop seat can be embedded is provided on the embedding groove cover plate.

[0015] Furthermore, the rack boss is arc-shaped, and an angle limiting column is arranged on the groove cover plate, and the angle limiting column can abut against both ends of the rack boss to achieve the limitation of the rotation angle.

[0016] Furthermore, the auxiliary wheel support arm assembly includes a first support arm and a second support arm hinged to each other, and the end of the second support arm is movably connected to the auxiliary wheel; the second support arm is also hinged with a pull rod, and the other end of the pull rod is hinged to the frame fixing plate.

[0017] Furthermore, the driving module is a worm gear reducer.

[0018] Beneficial Effects

[0019] The hidden auxiliary wheel support arm driving mechanism provided by the utility model adopts a hidden design. By providing a driving module embedding groove on the auxiliary wheel support arm, the driving module that is easily subject to external interference or collision is hidden inside the period, which not only does not affect its normal work, but also can more effectively reduce the overall volume of the auxiliary wheel device, thereby improving driving safety. The mechanism is not only simple in structure and high in control accuracy, but also can effectively protect the driving module and extend the service life of the auxiliary wheel device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the hidden auxiliary wheel support arm driving mechanism of the utility model;

[0021] Figure 2 This is an exploded view from a first perspective of the hidden auxiliary wheel support arm driving mechanism of the utility model;

[0022] Figure 3 This is an exploded view from a second perspective of the hidden auxiliary wheel support arm driving mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the assembly of the drive module embedding groove and the embedding groove cover plate of the hidden auxiliary wheel support arm drive mechanism of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a frame fixing plate in the hidden auxiliary wheel support arm driving mechanism of the utility model;

[0025] Figure 6 It is a schematic diagram of the meshing operation of the driving gear shaft and the rack of the hidden auxiliary wheel support arm driving mechanism of the utility model;

[0026] Figure 7 This is a schematic diagram of the paired application of the hidden auxiliary wheel support arm driving mechanism of the utility model.

[0027] Graphic marking:

[0028] 1- auxiliary wheel support arm assembly, 101- first support arm, 102- second support arm, 103- pull rod;

[0029] 2-Drive module slot;

[0030] 3-groove cover plate, 301-first step table top, 302-second step table top;

[0031] 4-frame fixing plate, 401-rotating surface, 402-rack boss, 403-rack groove;

[0032] 5-rotating shaft, 501-rotation stop seat;

[0033] 6-Drive module;

[0034] 7- driving gear shaft;

[0035] 8- driving gear shaft through hole;

[0036] 9- Training wheels;

[0037] 10- rack;

[0038] 11- pad;

[0039] 12- first through hole of the rotating shaft;

[0040] 13- second through hole of the rotating shaft;

[0041] 14- anti-rotation seat embedding groove;

[0042] 15-Angle limit column. DETAILED DESCRIPTION

[0043] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] like Figures 1 to 4 As shown, a hidden auxiliary wheel support arm driving mechanism comprises an auxiliary wheel support arm assembly 1 connected with an auxiliary wheel 9, the auxiliary wheel support arm assembly 1 is provided with a driving module embedding groove 2, and is buckled with an embedding groove cover plate 3 to form an installation chamber for installing a driving module 6; the driving module 6 is connected with a driving gear shaft 7, and the embedding groove cover plate 3 is provided with a driving gear shaft through hole 8 for the driving gear shaft 7 to pass through;

[0045] It also includes a frame fixing plate 4 arranged on the outer side of the groove cover plate 3, the frame fixing plate 4 and the groove cover plate 3 are hinged through a rotating shaft 5, and a rack 10 that can mesh with the driving gear shaft 7 is arranged on the frame fixing plate 4.

[0046] like Figure 6As shown, under the drive of the driving module 6, the driving gear shaft 7 rotates clockwise or counterclockwise relative to the rack 10, indirectly driving the auxiliary wheel support arm assembly 1 and the frame fixing plate 4 to rotate clockwise or counterclockwise relative to each other.

[0047] Since the frame fixing plate 4 is fixedly connected to the frame or fork of the vehicle, under the action of the driving module 6, the auxiliary wheel support arm assembly 1 drives the auxiliary wheel 9 connected thereto to perform a clockwise rotation or a counterclockwise rotation with the rotating shaft 5 as the rotation center, thereby controlling the auxiliary wheel 9 to contact with the ground or to be separated from and swing away from the ground.

[0048] like Figure 2 and 3 As shown, as an optimization of this embodiment, a pad 11 is further provided on the outer side of the frame fixing plate 4 for more stably connecting and fixing with the vehicle frame. The pad can be made of flexible material, such as rubber.

[0049] It should be noted that, in order to reduce the volume of the mechanism as much as possible and reduce the space occupied outside, the shape of the frame fixing plate 4 in this embodiment is set to be fan-shaped, which is more conducive to the processing of the device and the installation of the rack 10.

[0050] like Figure 7 As shown, the hidden auxiliary wheel support arm driving mechanism provided by the present solution needs to appear in pairs in actual use, that is, installed on the left and right sides of the vehicle respectively.

[0051] like Figure 2 , 3 As shown in FIG. 5 , the inner side surface of the frame fixing plate 4 serves as a rotating surface 401 , and a rack boss 402 is provided on the rotating surface 401 , and a rack embedding groove 403 for embedding and installing the rack 10 is provided on the rack boss 402 .

[0052] In this embodiment, the rack 10 is in an arc shape. Under the drive of the driving module 6, the auxiliary wheel support arm assembly 1 is indirectly driven to drive the auxiliary wheel 9 connected thereto to rotate clockwise or counterclockwise with the rotating shaft 5 as the rotation center.

[0053] like Figure 2 and 3 As shown, as an optimization of this embodiment, the embedded groove cover plate 3 is stepped, including a first step table 301 and a second step table 302 connected to each other, the first step table 301 is higher than the second step table 302; the first step table 301 corresponds to the rotating surface 401; the second step table 302 can span the rack boss 402.

[0054] The rotating shaft 5 is installed on the first stepped table surface 301 , and the driving gear shaft through hole 8 is arranged on the first stepped table surface 301 .

[0055] In this embodiment, a first shaft through hole 12 is opened on the first stepped table 301, and a second shaft through hole 13 corresponding to the first shaft through hole 12 is opened on the rotating surface 401. The shaft 5 passes through the first shaft through hole 12 and the second shaft through hole 13 respectively to achieve hinged connection between the two.

[0056] like Figure 2 and 3 As shown, as an optimization of the rotating shaft 5 in this embodiment, the rotating shaft 5 also includes a rotation stop seat 501, and correspondingly, a rotation stop seat embedding groove 14 in which the rotation stop seat 501 can be embedded is provided on the embedding groove cover plate 3.

[0057] Specifically, the anti-rotation seat 501 can make the rotating shaft 5 rotate freely only relative to the second through hole 13 of the rotating shaft, thereby ensuring the stability of the rotation between the two.

[0058] On the other hand, bearings may be embedded in the first shaft through hole 12 and the second shaft through hole 13 respectively to ensure further stability of the rotation.

[0059] This embodiment is also provided with a rotation angle limiting mechanism, specifically:

[0060] The shape of the rack boss 402 is similar to that of the rack 10, both of which are arc-shaped. An angle limiting column 15 is provided on the groove cover plate 3, and the angle limiting column 15 can contact with both ends of the rack boss 402 to achieve the limit of the rotation angle. Through this mechanism, the safe rotation angle of the auxiliary wheel support arm assembly 1 can be effectively controlled to ensure that the auxiliary wheel 9 connected thereto can more accurately perform safety auxiliary control of vehicle driving.

[0061] like Figure 1 As shown, the auxiliary wheel support arm assembly 1 in this embodiment includes a first support arm 101 and a second support arm 102 which are hinged to each other, and the end of the second support arm 102 is movably connected to the auxiliary wheel 9; a pull rod 103 is also hinged on the second support arm 102, and the other end of the pull rod 103 is hinged to the frame fixing plate 4.

[0062] Specifically, the above-mentioned components constitute a foldable auxiliary wheel support arm assembly, which can be accurately and effectively folded and extended under the driving mechanism provided in this embodiment, and can accurately control the auxiliary wheel 9 to provide safety assistance for the vehicle.

[0063] like Figure 2 and 3As shown, in this embodiment, the driving module 6 is a worm gear reducer, and the driving gear shaft 7 is connected to the turbine and rotates synchronously with the turbine under the drive of the worm, and applies a rotational force to the rack 10 meshing therewith.

[0064] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Hidden auxiliary wheel support arm drive mechanism, characterized in that: The auxiliary wheel support arm assembly (1) comprises an auxiliary wheel (9) connected thereto; the auxiliary wheel support arm assembly (1) is provided with a drive module embedding groove (2) which is engaged with the embedding groove cover plate (3) to form an installation chamber for installing the drive module (6); the drive module (6) is connected to a drive gear shaft (7); the embedding groove cover plate (3) is provided with a drive gear shaft through hole (8) through which the drive gear shaft (7) can pass; It also includes a frame fixing plate (4) arranged on the outside of the groove cover plate (3), the frame fixing plate (4) and the groove cover plate (3) are hinged via a rotating shaft (5), and a rack (10) capable of meshing with the driving gear shaft (7) is arranged on the frame fixing plate (4).

2. The hidden auxiliary wheel support arm driving mechanism according to claim 1, characterized in that: The inner side surface of the frame fixing plate (4) serves as a rotating surface (401), and a rack boss (402) is provided on the rotating surface (401), and a rack embedding groove (403) for embedding and installing the rack (10) is provided on the rack boss (402).

3. The hidden auxiliary wheel support arm driving mechanism according to claim 1 or 2, characterized in that: The rack (10) is in an arc shape.

4. The hidden auxiliary wheel support arm driving mechanism according to claim 2, characterized in that: The embedded groove cover plate (3) is in a stepped shape, comprising a first stepped table top (301) and a second stepped table top (302) connected to each other, the first stepped table top (301) being higher than the second stepped table top (302); the first stepped table top (301) corresponds to the rotating surface (401).

5. The hidden auxiliary wheel support arm driving mechanism according to claim 4, characterized in that: The rotating shaft (5) is mounted on the first stepped table surface (301), and the driving gear shaft through hole (8) is arranged on the first stepped table surface (301).

6. The hidden auxiliary wheel support arm driving mechanism according to claim 5, characterized in that: A first shaft through hole (12) is formed on the first stepped table surface (301), a second shaft through hole (13) corresponding to the first shaft through hole (12) is formed on the rotating surface (401), and the shaft (5) passes through the first shaft through hole (12) and the second shaft through hole (13) respectively.

7. The hidden auxiliary wheel support arm driving mechanism according to claim 6, characterized in that: The rotating shaft (5) further comprises a rotation stop seat (501), and correspondingly, a rotation stop seat embedding groove (14) capable of embedding the rotation stop seat (501) is provided on the embedding groove cover plate (3).

8. The hidden auxiliary wheel support arm driving mechanism according to claim 2, characterized in that: The rack boss (402) is arc-shaped, and an angle limiting column (15) is provided on the embedded groove cover plate (3). The angle limiting column (15) can abut against two ends of the rack boss (402) to achieve rotation angle limitation.

9. The hidden auxiliary wheel support arm driving mechanism according to claim 1, characterized in that: The auxiliary wheel support arm assembly (1) comprises a first support arm (101) and a second support arm (102) which are hinged to each other, the end of the second support arm (102) being movably connected to the auxiliary wheel (9); a pull rod (103) is also hinged to the second support arm (102), the other end of the pull rod (103) being hinged to the frame fixing plate (4).

10. The hidden auxiliary wheel support arm driving mechanism according to claim 1, characterized in that: The driving module (6) is a worm gear reducer.

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