Shock-resistant rear axle assembly of electro-tricycle

Abstract

The invention discloses an impact-resistant rear axle assembly of an electric tricycle. The impact-resistant rear axle assembly comprises a rack and a rear axle body connected through a spring assembly. The rear axle body is connected with a transmission assembly through a linkage assembly, the transmission assembly is arranged in the rack and is in transmission connection with a locking assembly, and the locking assembly clamps or separates the spring assembly through the transmission assembly. The sliding blocks connected to the two ends of the spring assembly and the fluted discs fixedly connected to one ends of the sliding blocks are engaged with or separated from the locking assembly, and the anti-disengaging assembly is matched to stably lock the impacted end of the spring assembly, so that the sliding blocks connected to the other ends of the spring assembly move in the fixed direction along the rectangular frame. Impact on the rear axle body is released when the spring assembly is in a movable state, and the phenomenon that the rear axle body and the spring assembly are damaged after being impacted is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electric tricycles, and in particular to an impact-resistant rear axle assembly of an electric tricycle. Background Art

[0002] An electric tricycle is a three-wheeled vehicle used for transporting goods or people, powered by a battery and driven by an electric motor. An electric tricycle can meet the requirements of long-term continuous discharge. The motor of an electric tricycle adopts a DC series-excited traction brushed or brushless motor, and a speed-regulating and force-enhancing device is installed inside the motor. It is not easy to be damaged during normal use, ensuring strong output power.

[0003] For example, the Chinese patent with publication number CN114537041A and titled "An Impact-resistant Electric Tricycle Rear Axle" relates to the technical field of electric tricycles. Most of the existing electric tricycle rear axles are fixedly connected to the frame with bolts, which is not convenient for installation and disassembly, and is not convenient for users to operate. Moreover, most of the rear axles are not provided with a protective mechanism, which makes it easy for protrusions on the road surface to hit the rear axle, and then easily causes damage to it. In addition, most of the existing rear axles are only provided with a single leaf spring shock-absorbing component, and the shock-absorbing effect is poor, thereby reducing the driving comfort of the electric tricycle. The electric tricycle rear axle body and the electric tricycle frame body are detachably provided with a symmetrically arranged shock-absorbing mechanism. Under the coordinated action of the first mounting mechanism and the second mounting mechanism, the electric tricycle rear axle body can be conveniently and quickly fixed to the electric tricycle frame body, and it is easy to disassemble later, thereby bringing convenience to the user's operation;

[0004] The deficiency of the prior art is that, since the electric tricycle has two movement modes, forward and backward, which can be switched, when the direction of the electric tricycle changes during the forward movement, the movement trajectory of the wheels at both ends of the rear axle of the electric tricycle changes, and during the backward movement, the wheels connected to the rear axle are easily collided, generating impact force on the rear axle and the spring plate. However, most electric tricycles do not have a protective mechanism on the rear axle, which leads to damage to the rear axle due to collision. Summary of the invention

[0005] The purpose of the present invention is to provide an impact-resistant rear axle assembly for an electric tricycle, wherein a transmission component is driven by a linkage component to move in a directional manner along a rectangular frame, and the transmission component drives the locking component to open and close, so that the sliding blocks connected at both ends of the spring component and the toothed disc fixedly connected at one end of the sliding block are engaged or separated with the locking component, and the anti-detachment component is used to lock the impacted end of the spring component stably, so that the sliding block connected to the other end of the spring component can move in a directional manner along the rectangular frame, and the impact force received by the rear axle body is released while the spring component is movable, thereby reducing the phenomenon of damage to the rear axle body and the spring component after being impacted.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an impact-resistant rear axle assembly of an electric tricycle, comprising a frame and a rear axle body connected by a spring assembly; the rear axle body is connected to a transmission assembly through a linkage assembly, and the transmission assembly is arranged in the frame and is transmission-connected to a locking assembly, the locking assembly clamps or separates the spring assembly through the transmission assembly, so that the spring assembly releases the impact force received by the rear axle in its own active state; and also includes an anti-slip assembly, the anti-slip assembly limits the spring assembly, so that the spring assembly is stably locked with the contact end of the frame when it is impacted;

[0007] As a further description of the above technical solution:

[0008] The locking assembly comprises a linkage bar, one end of which is fixedly connected to the transmission assembly, and the other end of the linkage bar is provided with a support member, the support member is transmission-connected with a brake member, and the brake member moves along directional rails symmetrically arranged at both ends.

[0009] As a further description of the above technical solution:

[0010] The support member includes a connecting rod, and one end of the connecting rod is fixed on the linkage bar, and the other end of the connecting rod is fixedly connected to a movable bar. A limiting groove is provided in the movable bar, and a bolt shaft rod is provided in the limiting groove. A push rod is provided at one end of the rotating shaft rod, and the push rod is connected to the brake member for transmission.

[0011] As a further description of the above technical solution:

[0012] The brake member comprises a rack rod, one end of which is fixedly connected to a fixing ear, one end of which is fixedly connected to a positioning rod, and the positioning rod is movably connected to the push rod; both ends of the rack rod are symmetrically fixedly connected to sliding rods, and the sliding rods are arranged in the directional rail.

[0013] As a further description of the above technical solution:

[0014] The spring assembly includes a spring plate, a locking piece is provided at the bottom end of the spring plate, and the locking piece locks the spring plate to the rear axle body, sliding blocks are provided at both ends of the spring plate, and the sliding blocks are slidably arranged in a sliding groove opened in the frame; one end of the sliding block is fixedly connected to a toothed disc, and the toothed disc is arranged between the two rack rods.

[0015] As a further description of the above technical solution:

[0016] The linkage assembly comprises a pull rod, one end of which is movably connected to the rear axle body, and the other end of which is provided with a connecting block, and the connecting block is fixedly connected with the transmission assembly.

[0017] As a further description of the above technical solution:

[0018] The transmission assembly comprises a movable arm, the top end of the movable arm is fixedly connected with a slider, and one end of the slider is fixedly connected with a linkage bar.

[0019] As a further description of the above technical solution:

[0020] A limiting shaft is penetrated through one end of the movable arm close to the sliding block, and two ends of the limiting shaft are fixed to rectangular frames arranged at two ends of the frame through fixing blocks.

[0021] As a further description of the above technical solution:

[0022] One end of the fixed block is fixedly connected with a return spring, one end of the return spring is fixedly connected with a gasket, and the gasket is sleeved on the limiting shaft and abuts against the movable arm.

[0023] As a further description of the above technical solution:

[0024] The anti-slip assembly comprises an anti-slip rod, and the anti-slip rod is fixed on the sliding block. One end of the anti-slip rod is provided with a limiting block, and the limiting block is fixed on the rectangular frame.

[0025] The present invention provides an impact-resistant rear axle assembly for an electric tricycle, which has the following beneficial effects:

[0026] In the present invention, the transmission component is driven by the linkage component to move in a directional manner along the rectangular frame, and the transmission component drives the locking component to open and close, so that the sliding blocks connected at both ends of the spring component and the toothed disk fixedly connected at one end of the sliding block are engaged or separated with the locking component, and the anti-detachment component is used to lock the impacted end of the spring component stably, so that the sliding block connected to the other end of the spring component can move in a directional manner along the rectangular frame, and the impact force received by the rear axle body is released when the spring component is movable, thereby reducing the phenomenon of damage to the rear axle body and the spring component after being impacted. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an impact-resistant rear axle assembly of an electric tricycle proposed by the present invention;

[0028] Figure 2 It is a structural schematic diagram of the frame in the present invention;

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure at A in the middle;

[0030] Figure 4 It is a structural schematic diagram of the spring assembly in the present invention;

[0031] Figure 5 It is a structural schematic diagram of the locking assembly in the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the rectangular frame in the present invention;

[0033] Figure 7 For the present invention Figure 6 The structural diagram at B in the middle;

[0034] Figure 8 It is a schematic diagram of the structure of the brake member in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the anti-slip component in the present invention.

[0036] Legend: 1. Frame; 11. Rectangular frame; 12. Slide groove; 2. Spring assembly; 21. Spring plate; 22. Sliding block; 23. Locking piece; 3. Rear axle body; 4. Linking assembly; 41. Pull rod; 42. Connecting block; 5. Transmission assembly; 51. Movable arm; 52. Limiting shaft; 53. Washer ring; 54. Reset spring; 55. Fixed block; 56. Sliding block; 6. Locking assembly; 61. Linking bar; 62. Support member; 621. Connecting rod; 622. Movable bar; 623. Limiting groove; 624. Bolt shaft rod; 625. Push rod; 63. Braking piece; 631. Rack rod; 632. Fixing ear; 633. Sliding rod; 634. Positioning rod; 64. Directional rail; 7. Anti-slip assembly; 71. Anti-slip rod; 72. Limiting block. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Reference Figure 1-9 , an impact-resistant rear axle assembly of an electric tricycle, comprising a frame 1 and a rear axle body 3 connected by a spring assembly 2; the rear axle body 3 is connected to a transmission assembly 5 through a linkage assembly 4, and the transmission assembly 5 is arranged in the frame 1 and is in driving connection with a locking assembly 6, the locking assembly 6 clamps or separates the spring assembly 2 through the transmission assembly 5, so that the spring assembly 2 releases the impact force received by the rear axle in its own active state; and also includes an anti-slip assembly 7, the anti-slip assembly 7 limits the spring assembly 2, so that the spring assembly 2 is stably locked with the contact end of the frame 1 when it is impacted;

[0039] Specifically, the frame 1 is a rectangular structural frame for carrying a carriage, and the spring assembly 2 symmetrically arranged at the bottom end of the frame 1 fixes the rear axle body 3, and the linkage assembly 4 movably connected at one end of the rear axle body 3 is connected to the transmission assembly 5, and the transmission assembly 5 is movably arranged in the rectangular frames 11 at both ends of the frame 1. When the rear axle body 3 is impacted, the linkage assembly 4 drives the transmission assembly 5 to move in a directional manner along the rectangular frame 11, and the transmission assembly 5 drives the locking assembly 6 to open and close, so that the sliding blocks 22 connected at both ends of the spring assembly 2 and the toothed disc fixedly connected at one end of the sliding block 22 are engaged or separated with the locking assembly 6, and the anti-drop assembly 7 is used to lock the impacted end of the spring assembly 2 stably, so that the sliding block 22 connected to the other end of the spring assembly 2 can move in a directional manner along the rectangular frame 11, and the impact on the rear axle body 3 is released when the spring assembly 2 is movable, thereby reducing the damage to the rear axle body 3 and the spring assembly 2 after the impact;

[0040] The locking assembly 6 includes a linkage bar 61, one end of which is fixedly connected to the transmission assembly 5, and the other end of the linkage bar 61 is provided with a support member 62, and the support member 62 is transmission-connected to a brake member 63, and the brake member 63 moves along directional rails 64 symmetrically arranged at both ends; the support member 62 includes a connecting rod 621, and one end of the connecting rod 621 is fixed to the linkage bar 61, and the other end of the connecting rod 621 is fixedly connected to a movable bar 622, and a limiting groove 623 is provided in the movable bar 622. A bolt shaft rod 624 is provided in the limiting groove 623, a push rod 625 is provided at one end of the rotating shaft rod, and the push rod 625 is transmission-connected to the brake member 63; the brake member 63 includes a rack rod 631, one end of the rack rod 631 is fixedly connected to a fixing ear 632, one end of the fixing ear 632 is fixedly connected to a positioning rod 634, and the positioning rod 634 is movably connected to the push rod 625; two ends of the rack rod 631 are symmetrically fixedly connected to sliding rods 633, and the sliding rods 633 are arranged in the directional rail 64;

[0041] Specifically, the linkage bar 61 in the locking assembly 6 is fixed on the transmission assembly 5 for driving the movement of the support member 62 fixedly connected to the other end thereof, and the connecting rod 621 in the support member 62 is fixed on the linkage bar 61. When the connecting bar drives the connecting rod 621 to move, the movable bar 622 fixedly connected to the connecting rod 621 is driven by the linkage bar 61 to move downwardly, and the bolt shaft rod 624 provided in the limiting groove 623 provided in the movable bar 622 is provided with a push rod 625 with a V-shaped structure at one end. The movable bar 622 drives the two rack rods 631 in the brake member 63 to separate toward the two ends, and the sliding rods 633 fixedly connected at the two ends of the rack rods 631 move in a directional manner along the directional rails 64. The toothed disc between the two rack rods 631 is opened and closed by the rack rods 631, so that after the sliding block 22 fixedly connected to the toothed disc and the spring plate 21 at the bottom are impacted, the spring plate 21 moves along the rectangular frame 11 through the sliding block 22 to release the impact force, thereby avoiding the phenomenon that the spring plate 21 and the rear axle body 3 are damaged after being impacted;

[0042] The spring assembly 2 includes a spring plate 21, a locking member 23 is provided at the bottom end of the spring plate 21, and the locking member 23 locks the spring plate 21 on the rear axle body 3, sliding blocks 22 are provided at both ends of the spring plate 21, and the sliding blocks 22 are slidably arranged in the slide groove 12 opened in the frame 1; one end of the sliding block 22 is fixedly connected to a toothed disc, and the toothed disc is arranged between two rack rods 631; the linkage assembly 4 includes a pull rod 41, one end of the pull rod 41 is movably connected to the rear axle body 3, and the other end of the pull rod 41 is provided with a connecting block 42, and the connecting block 42 is fixedly connected A transmission assembly 5 is connected; the transmission assembly 5 includes a movable arm 51, a slider 56 is fixedly connected to the top of the movable arm 51, and one end of the slider 56 is fixedly connected to the linkage bar 61; a limit shaft 52 is penetrated at one end of the movable arm 51 close to the slider 56, and both ends of the limit shaft 52 are fixed to the rectangular frame 11 set at both ends of the frame 1 through a fixing block 55; a return spring 54 is fixedly connected to one end of the fixing block 55, and a gasket 53 is fixedly connected to one end of the return spring 54, and the gasket 53 is sleeved on the limit shaft 52 and abuts on the movable arm 51;

[0043] Specifically, one end of the tie rod 41 in the linkage assembly 4 is movably connected to the connection component welded in the rear axle body 3, and the other end of the tie rod 41 is connected to the movable arm 51 in the transmission assembly 5 through the connection block 42. When the rear axle body 3 is impacted, the rear axle body 3 drives the movable arm 51 to move through the tie rod 41, and the slider 56 fixedly connected to the top of the movable arm 51 drives the locking assembly 6 to open and close through the impact force. The limiting shaft 52 passing through one end of the movable arm 51 close to the slider 56 is fixed to the rectangular frame 11 through the fixing block 55. When the movable arm 51 moves, the reset spring 54 connected to the squeeze washer 53 is squeezed to store energy. When the reset spring 54 releases the stored energy and the spring plate 21 is reset, the locking assembly 6 clamps the spring assembly 2 again to improve the stability of the spring assembly 2.

[0044] The anti-slip assembly 7 includes an anti-slip rod 71, and the anti-slip rod 71 is fixed on the sliding block 22, and a limiting block 72 is provided at one end of the anti-slip rod 71, and the limiting block 72 is fixed on the rectangular frame 11;

[0045] Specifically, the anti-slip rod 71 in the anti-slip assembly 7 is fixed on the sliding block 22. When the anti-slip rod 71 at one end of the rear axle body 3 that is impacted engages with the limiting block 72, the impacted end of the spring plate 21 remains stable, and the other end of the spring plate 21 that is impacted is movable to release the impact force, thereby reducing the phenomenon of damage to the spring plate 21 after the impact.

[0046] Working principle: the spring assembly 2 symmetrically arranged at the bottom end of the frame 1 fixes the rear axle body 3, and the linkage assembly 4 movably connected at one end of the rear axle body 3 is connected to the transmission assembly 5. The transmission assembly 5 is movably arranged in the rectangular frames 11 at both ends of the frame 1. When the rear axle body 3 is impacted, the linkage assembly 4 drives the transmission assembly 5 to move in a directional manner along the rectangular frame 11, and the transmission assembly 5 drives the locking assembly 6 to open and close, so that the sliding blocks 22 connected at both ends of the spring assembly 2 and the toothed disk fixedly connected at one end of the sliding block 22 are engaged or separated with the locking assembly 6, and the anti-slip assembly 7 is used to lock the impacted end of the spring assembly 2 stably, wherein the linkage bar 61 in the locking assembly 6 is fixed on the transmission assembly 5 for driving the movement of the support member 62 fixedly connected to the other end thereof, and the connecting rod 621 in the support member 62 is fixed on the linkage bar 61. When the connecting bar drives the connecting rod 621 to move, the movable The movable bar 622 is driven by the linkage bar 61 to move in a directional manner. One end of the bolt shaft rod 624 arranged in the limiting groove 623 opened in the movable bar 622 is provided with a push rod 625 with a V-shaped structure. Driven by the movable bar 622, the push rod 625 drives the two rack rods 631 in the brake member 63 to separate to both ends. The sliding rods 633 fixedly connected at both ends of the rack rod 631 move in a directional manner along the directional rail 64. The toothed disc between the two rack rods 631 is opened and closed by the rack rod 631, so that after the sliding block 22 fixedly connected to the toothed disc and the spring plate 21 at the bottom are impacted, the spring plate 21 moves along the rectangular frame 11 through the sliding block 22 to release the impact force, so that the sliding block 22 connected to the other end of the spring assembly 2 moves in a directional manner along the rectangular frame 11, and the impact on the rear axle body 3 is released while the spring assembly 2 is movable, thereby reducing the phenomenon of damage to the rear axle body 3 and the spring assembly 2 after being impacted.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impact-resistant rear axle assembly for an electric tricycle, characterized in that: It comprises a frame (1) and a rear axle body (3) connected via a spring assembly (2); The rear axle body (3) is connected to a transmission assembly (5) via a linkage assembly (4), and the transmission assembly (5) is arranged in the frame (1) and is transmission-connected to a locking assembly (6), and the locking assembly (6) clamps or separates the spring assembly (2) via the transmission assembly (5), so that the spring assembly (2) releases the impact force received by the rear axle in its own active state; It also includes an anti-slip assembly (7), which restricts the spring assembly (2) so that the spring assembly (2) is stably locked with the contact end of the frame (1) when impacted.

2. The impact-resistant rear axle assembly of an electric tricycle according to claim 1, characterized in that: The locking assembly (6) comprises a linkage bar (61), one end of which is fixedly connected to the transmission assembly (5), and the other end of the linkage bar (61) is provided with a support member (62), the support member (62) is transmission-connected to a brake member (63), and the brake member (63) moves along directional rails (64) symmetrically arranged at both ends.

3. The impact-resistant rear axle assembly of an electric tricycle according to claim 2, characterized in that: The support member (62) comprises a connecting rod (621), and one end of the connecting rod (621) is fixed on the linkage bar (61), and the other end of the connecting rod (621) is fixedly connected to a movable bar (622), a limiting groove (623) is provided in the movable bar (622), a bolt shaft rod (624) is provided in the limiting groove (623), a push rod (625) is provided at one end of the rotating shaft rod, and the push rod (625) is transmission-connected to the brake member (63).

4. The impact-resistant rear axle assembly of an electric tricycle according to claim 2, characterized in that: The brake member (63) comprises a rack rod (631), one end of the rack rod (631) is fixedly connected to a fixing ear (632), one end of the fixing ear (632) is fixedly connected to a positioning rod (634), and the positioning rod (634) is movably connected to the push rod (625); two ends of the rack rod (631) are symmetrically fixedly connected to sliding rods (633), and the sliding rods (633) are arranged in the directional rail (64).

5. The impact-resistant rear axle assembly of an electric tricycle according to claim 1, characterized in that: The spring assembly (2) comprises a spring plate (21), a locking member (23) is provided at the bottom end of the spring plate (21), and the locking member (23) locks the spring plate (21) to the rear axle body (3), sliding blocks (22) are provided at both ends of the spring plate (21), and the sliding blocks (22) are slidably arranged in a sliding groove (12) provided in the frame (1); one end of the sliding block (22) is fixedly connected to a toothed disc, and the toothed disc is arranged between the two rack rods (631).

6. The impact-resistant rear axle assembly of an electric tricycle according to claim 1, characterized in that: The linkage assembly (4) comprises a pull rod (41), one end of which is movably connected to the rear axle body (3), and the other end of which is provided with a connecting block (42), and the connecting block (42) is fixedly connected to the transmission assembly (5).

7. The impact-resistant rear axle assembly of an electric tricycle according to claim 1, characterized in that: The transmission assembly (5) comprises a movable arm (51), the top end of the movable arm (51) is fixedly connected to a slider (56), and one end of the slider (56) is fixedly connected to a linkage bar (61).

8. The impact-resistant rear axle assembly of an electric tricycle according to claim 7, characterized in that: A limiting shaft (52) is provided through one end of the movable arm (51) close to the slider (56), and both ends of the limiting shaft (52) are fixed to rectangular frames (11) provided at both ends of the frame (1) through fixing blocks (55).

9. The impact-resistant rear axle assembly of an electric tricycle according to claim 8, characterized in that: One end of the fixed block (55) is fixedly connected to a return spring (54), and one end of the return spring (54) is fixedly connected to a gasket (53), and the gasket (53) is sleeved on the limit shaft (52) and abuts against the movable arm (51).

10. The impact-resistant rear axle assembly of an electric tricycle according to claim 1, characterized in that: The anti-slip assembly (7) comprises an anti-slip rod (71), and the anti-slip rod (71) is fixed on the sliding block (22). A limiting block (72) is provided at one end of the anti-slip rod (71), and the limiting block (72) is fixed on the rectangular frame (11).

Images