Rear axle assembly of electric tricycle

Abstract

The utility model discloses a rear axle assembly of an electro-tricycle, which belongs to the technical field of rear axles of electro-tricycles and comprises an electro-tricycle framework provided with the rear axle assembly and a protective structure arranged below the electro-tricycle framework and wrapped on the rear axle assembly to protect the rear axle assembly. The protection structure comprises a blocking and protecting assembly used for blocking and protecting the lower portion of the rear axle assembly and a limiting assembly used for adjusting and limiting the position of the blocking and protecting assembly. According to the rear axle assembly protection device, the arc-shaped blocking and protecting plate is arranged and can be used for blocking and protecting the periphery of the rear axle assembly, if splashing stones or the arc-shaped blocking and protecting plate collides with stone foreign matters on the road surface in the driving process, the arc-shaped blocking and protecting plate can be used for blocking and protecting, and direct damage to the rear axle assembly is avoided; and under the action of the elastic force of the spring, buffering on the arc-shaped blocking and protecting plate can be reduced, and damage to the arc-shaped blocking and protecting plate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric tricycle rear axle technology, specifically to a rear axle assembly for an electric tricycle. Background Technology

[0002] The rear axle assembly of an electric tricycle is a core component of the vehicle's transmission and walking systems. It is mainly responsible for transmitting the power output from the motor to the rear wheels, while also bearing the vehicle's load, steering (in some models), and shock absorption functions.

[0003] Chinese Patent Publication No. CN218287326U discloses a high-impact-strength rear axle for an electric tricycle. The axle includes a rear axle body with symmetrically arranged anti-collision frames on both sides along its length. Each anti-collision frame includes an arc-shaped connecting rod and buffer plates. The arc-shaped connecting rod is mounted on the rear axle body and is fixedly connected to the lower side of the rear axle body at its inner center. Two buffer plates are arranged symmetrically on both sides of the bottom of the arc-shaped connecting rod. When the electric tricycle travels on rural dirt roads, if the rear axle body is about to collide with a protrusion, the protrusion will first contact the buffer plates on the anti-collision frames, causing the vehicle to move upwards, thus preventing the rear axle body from contacting the protrusion and providing excellent high impact resistance. The structure is novel and the design is unique, possessing high novelty and worthy of promotion.

[0004] In the aforementioned prior art, the anti-collision frame and buffer plate can provide protection for the rear axle of the electric tricycle, preventing damage to the rear axle from impact. However, since the protective device is directly installed on the rear axle of the electric tricycle, its impact force will also act on the rear axle when it is impacted, which can easily affect various components of the rear axle, such as the housing, gears, and bearings. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a rear axle assembly for an electric tricycle, thereby solving the problem mentioned in the background art where the protective device for the rear axle of an electric tricycle is directly installed on the rear axle, and the impact force will also act on the rear axle when it is hit, which can easily affect various components of the rear axle.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A rear axle assembly for an electric tricycle, comprising:

[0008] An electric tricycle frame, wherein a rear axle assembly is mounted on the electric tricycle frame; characterized in that it further includes:

[0009] The protective structure is located under the frame of the electric tricycle and wraps around the rear axle assembly to provide protection for the rear axle assembly.

[0010] The protective structure includes a protective assembly for shielding the area below the rear axle assembly, a limiting assembly for adjusting and limiting the position of the protective assembly, and a spring-loaded assembly for cushioning.

[0011] An alarm structure, located on the protective assembly, is used to generate an alarm when the protective assembly is subjected to an impact.

[0012] Preferably, the protective assembly includes:

[0013] Several welding plates are welded to the bottom of the electric tricycle frame;

[0014] The mounting screw is positioned at one end of the welding plate;

[0015] The mounting plate is slidably fitted onto the mounting screw;

[0016] The mounting plate is slidably installed inside the mounting sleeve.

[0017] The curved guard plate is mounted on the mounting plate, and the rear axle assembly is located inside the curved guard plate.

[0018] Preferably, the limiting component includes:

[0019] The limiting nut is threaded onto the mounting screw and contacts the bottom of the mounting sleeve plate to limit the installation height of the mounting sleeve plate.

[0020] The sliding component is arranged on the mounting plate.

[0021] Preferably, the sliding component includes:

[0022] A slotted hole is formed inside the mounting plate, and the mounting screw is movably installed inside the slotted hole;

[0023] The mounting holes are made inside the mounting sleeve, and the mounting plate is slidably installed inside the mounting sleeve.

[0024] Preferably, the sliding component further includes:

[0025] The limit screw is inserted inside the mounting sleeve;

[0026] Several limiting holes are evenly distributed inside the mounting plate, and the limiting screw is threaded into the corresponding limiting hole;

[0027] Install the nut, which is threaded onto the mounting plate.

[0028] Preferably, the elastic component includes a spring, which is slidably sleeved on the mounting screw, with both ends of the spring contacting one side of the welding plate and the mounting sleeve plate, respectively.

[0029] Preferably, the alarm structure includes:

[0030] The U-shaped frame is welded to the bottom of the electric tricycle frame;

[0031] The adjusting screw is threaded inside the U-shaped frame;

[0032] A trigger plate is located at one end of the adjusting screw;

[0033] Both the switch and the alarm are mounted on the curved protective plate, and the switch and the alarm are electrically connected to the same control module.

[0034] Preferably, the alarm structure further includes an adjusting screw hole, which is located inside the U-shaped frame, and the adjusting screw is threadedly installed inside the adjusting screw hole.

[0035] The beneficial effects of this utility model are as follows:

[0036] This utility model, through the setting of the arc-shaped guard plate, can be used to protect the rear axle assembly. If there are flying stones or the arc-shaped guard plate collides with stones or foreign objects on the road during driving, the arc-shaped guard plate can be used to block and protect it, avoiding direct damage to the rear axle assembly. Furthermore, under the elastic force of the spring, the arc-shaped guard plate can be cushioned, reducing the damage to the arc-shaped guard plate.

[0037] In this invention, if the arc-shaped guard plate is subjected to a large impact, the moving arc-shaped guard plate will cause the switch to contact the trigger plate, thereby triggering the switch and activating the alarm. This will prompt the driver to check whether the rear axle assembly or the arc-shaped guard plate has been damaged, thus reducing the occurrence of accidents. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the rear axle assembly of an electric tricycle provided for an embodiment of this utility model;

[0040] Figure 2 A schematic diagram of the U-shaped frame structure of the rear axle assembly of an electric tricycle provided for an embodiment of this utility model;

[0041] Figure 3 A schematic diagram of the arc-shaped guard plate structure of the rear axle assembly of an electric tricycle provided for an embodiment of this utility model;

[0042] Figure 4 A cross-sectional view of the mounting plate of the rear axle assembly of an electric tricycle provided for an embodiment of this utility model;

[0043] Figure 5 A schematic diagram of the mounting plate structure for the rear axle assembly of an electric tricycle provided for an embodiment of this utility model;

[0044] Figure 6 This is a schematic diagram of the mounting screw structure of the rear axle assembly of an electric tricycle, provided as an embodiment of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Electric tricycle frame; 101. Rear axle assembly; 2. Welding plate; 201. Mounting screw; 202. Mounting plate; 203. Arc-shaped guard plate; 204. Limiting nut; 205. Strip hole; 206. Mounting sleeve plate; 207. Spring; 208. Limiting screw; 209. Limiting insertion hole; 210. Mounting nut; 211. Mounting hole; 3. U-shaped frame; 301. Adjusting screw; 302. Trigger plate; 303. Switch; 304. Alarm; 305. Adjusting screw hole. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Example 1:

[0049] like Figures 1 to 6 As shown, this utility model provides a rear axle assembly for an electric tricycle, including: an electric tricycle frame 1, a rear axle assembly 101 disposed on the electric tricycle frame 1, and a protective structure disposed below the electric tricycle frame 1 and covering the rear axle assembly 101 to provide protection for the rear axle assembly 101. The protective structure includes a protective component for blocking the area below the rear axle assembly 101 and a limiting component for adjusting and limiting the position of the protective component.

[0050] The protective assembly includes several welding plates 2 welded to the bottom of the electric tricycle frame 1, a mounting screw 201 arranged at one end of the welding plate 2, a mounting sleeve 206 slidably sleeved on the mounting screw 201, a mounting plate 202 slidably installed inside the mounting sleeve 206, an arc-shaped protective plate 203 arranged on the mounting plate 202, and the rear axle assembly 101 located inside the arc-shaped protective plate 203. In use, several welding plates 2 can be welded to the bottom of the electric tricycle frame 1 according to the layout position of the frame on the electric tricycle frame 1. Then, the mounting sleeve 206 on the arc-shaped protective plate 203 is sleeved on the mounting screw 201 for installation. The arc-shaped protective plate 203 can block flying stones and debris on the road.

[0051] The limiting component includes a limiting nut 204 threaded onto the mounting screw 201 and in contact with the lower part of the mounting sleeve 206 to limit the installation height of the mounting sleeve 206, and a sliding component arranged on the mounting sleeve 206. The mounting sleeve 206 on the arc-shaped guard plate 203 is fitted onto the mounting screw 201, and then the limiting nut 204 is fitted onto the mounting screw 201 and tightened to complete the installation operation of the mounting sleeve 206 and the arc-shaped guard plate 203.

[0052] Specifically, the sliding assembly includes a slotted hole 205 inside the mounting plate 202, a mounting screw 201 movably mounted inside the slotted hole 205, and a mounting hole 211 inside the mounting sleeve 206. The mounting plate 202 is slidably mounted inside the mounting sleeve 206. When the mounting sleeve 206 is installed, it can be fitted onto the mounting plate 202 through the mounting hole 211. The position of the mounting sleeve 206 on the mounting plate 202 can be adjusted by pushing the mounting sleeve 206. The slotted hole 205 allows the mounting screw 201 to pass through it for connection.

[0053] Specifically, the sliding assembly also includes a limiting screw 208 inserted inside the mounting sleeve 206, and several limiting holes 209 evenly opened inside the mounting plate 202. The limiting screw 208 is threaded into the corresponding limiting hole 209, and the mounting nut 210 is threaded onto the mounting sleeve 206. By passing the limiting screw 208 through the mounting sleeve 206 and the corresponding limiting hole 209, and simultaneously tightening the mounting nut 210, the position of the mounting sleeve 206 is fixed. Through the setting of multiple limiting holes 209, the mounting sleeve 206 can be fixed in different positions.

[0054] Example 2:

[0055] Based on Example 1, in order to achieve a buffering effect on the protective components and reduce the damage they suffer, an elastic component for buffering is also arranged in the protective structure.

[0056] The elastic component includes a spring 207 that is slidably sleeved on the mounting screw 201. The two ends of the spring 207 are in contact with one side of the welding plate 2 and the mounting sleeve 206, respectively. When the mounting screw 201 is installed, the spring 207 can be sleeved on. When the mounting sleeve 206 is installed later, the mounting sleeve 206 will contact one end of the spring 207. When the arc-shaped guard plate 203 is subjected to force, it will drive the mounting sleeve 206 to compress the spring 207. Under the elastic force of the spring 207, the arc-shaped guard plate 203 can be buffered.

[0057] Example 3:

[0058] Based on Embodiment 1, in order to alert the driver to check when the guard assembly is subjected to a large impact, an alarm structure is arranged on the guard assembly to generate an alarm when the guard assembly is subjected to an impact.

[0059] The alarm structure includes a U-shaped frame 3 welded to the bottom of the electric tricycle frame 1, an adjusting screw 301 threaded inside the U-shaped frame 3, a trigger plate 302 arranged at one end of the adjusting screw 301, a switch 303 and an alarm 304 arranged on the arc-shaped guard plate 203. The switch 303 and the alarm 304 are electrically connected to the same control module. If the arc-shaped guard plate 203 is subjected to a severe impact and a large force, the moving arc-shaped guard plate 203 will drive the switch 303 to rise and contact the trigger plate 302, thereby opening and triggering the switch 303. The control module then activates the alarm 304 to sound an alarm.

[0060] The alarm structure also includes an adjustment screw hole 305 inside the U-shaped frame 3. The adjustment screw 301 is threaded inside the adjustment screw hole 305. By rotating the adjustment screw 301, it can drive the trigger plate 302 to move up and down through the thread engagement with the adjustment screw hole 305, thereby adjusting the distance between the trigger plate 302 and the switch 303, and thus adjusting the trigger distance of the switch 303.

[0061] Working principle:

[0062] In use, several welding plates 2 are welded to the lower part of the electric tricycle frame 1. The welding position of the welding plates 2 can be adjusted according to the layout of the frame on the electric tricycle frame 1. Then, the mounting sleeve 206 is fitted onto the mounting plate 202 through the mounting hole 211. The mounting sleeve 206 can be pushed to adjust its position on the mounting plate 202, ensuring that the mounting screw 201 is aligned with the mounting sleeve 206. After adjustment, the limiting screw 208 can be inserted into the mounting sleeve 206 and the corresponding limiting insertion hole 209. At the same time, the mounting nut 210 is tightened to fix the position of the mounting sleeve 206, completing the process. Next, the spring 207 is fitted onto the corresponding mounting screw 201. Then, the mounting sleeve 206 on the arc-shaped guard plate 203 is fitted onto the mounting screw 201, so that the mounting screw 201 passes through the slotted hole 205, and the mounting sleeve 206 contacts one end of the spring 207. After this, the limiting nut 204 is fitted onto the mounting screw 201 and tightened, so that the limiting nut 204 is flush against the bottom of the mounting sleeve 206. This completes the installation operation of the mounting sleeve 206 and the arc-shaped guard plate 203. A washer can also be placed between the limiting nut 204 and the mounting sleeve 206 to increase friction and stability, or the mounting screw... The rod 201 is reinforced by welding with the limiting nut 204 to improve installation stability. The mounting screw 201 is only threaded at the connection with the limiting nut 204. The contact point between the mounting screw 201 and the mounting sleeve 206 can be set as a smooth surface to ensure that the mounting sleeve 206 can slide stably. Then, a U-shaped frame 3 is welded below the electric tricycle frame 1 so that the trigger plate 302 is aligned with the top of the switch 303. After installation, the arc-shaped guard plate 203 can protect the rear axle assembly 101. When the arc-shaped guard plate 203 is under force, it will drive the mounting sleeve 206 to slide on the mounting screw 201, and at the same time... The compression spring 207 can buffer the arc-shaped guard plate 203 under the elastic force of the spring 207. If the arc-shaped guard plate 203 is hit seriously and the force is large, the moving arc-shaped guard plate 203 will drive the switch 303 to rise and contact the trigger plate 302, thereby opening and triggering the switch 303. The switch 303 can send a signal to the control module, and the control module can then activate the alarm 304 to sound an alarm, reminding the driver to check whether there is any damage at the rear axle assembly 101. The switch 303, the alarm 304 and the control module can all be powered by the vehicle's own battery.

[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rear axle assembly for an electric tricycle, comprising an electric tricycle frame (1), wherein a rear axle assembly (101) is disposed on the electric tricycle frame (1); characterized in that, Also includes: The protective structure is located below the electric tricycle frame (1) and wraps around the rear axle assembly (101) to provide protection for the rear axle assembly (101); The protective structure includes a shielding assembly for shielding the rear axle assembly (101), a limiting assembly for adjusting and limiting the position of the shielding assembly, and a spring assembly for buffering. An alarm structure, located on the protective assembly, is used to generate an alarm when the protective assembly is subjected to an impact.

2. The rear axle assembly of an electric tricycle as described in claim 1, characterized in that, The protective assembly includes: Several welding plates (2) are welded to the bottom of the electric tricycle frame (1); The mounting screw (201) is arranged at one end of the welding plate (2); The mounting sleeve (206) is slidably sleeved on the mounting screw (201); The mounting plate (202) is slidably installed inside the mounting sleeve (206); An arc-shaped guard plate (203) is arranged on the mounting plate (202), and the rear axle assembly (101) is located inside the arc-shaped guard plate (203).

3. The rear axle assembly of an electric tricycle as described in claim 1, characterized in that, The limiting component includes: The limiting nut (204) is threaded onto the mounting screw (201) and contacts the bottom of the mounting sleeve (206) to limit the installation height of the mounting sleeve (206); The sliding component is arranged on the mounting plate (206).

4. The rear axle assembly of an electric tricycle as described in claim 3, characterized in that, The sliding component includes: A strip hole (205) is formed inside the mounting plate (202), and a mounting screw (201) is movably installed inside the strip hole (205); Mounting holes (211) are provided inside the mounting sleeve (206), and the mounting plate (202) is slidably mounted inside the mounting sleeve (206).

5. The rear axle assembly of an electric tricycle as described in claim 3, characterized in that, The sliding component also includes: The limiting screw (208) is inserted inside the mounting sleeve (206); Several limiting holes (209) are evenly opened inside the mounting plate (202), and the limiting screw (208) is threadedly installed in the corresponding limiting hole (209); The mounting nut (210) is threaded onto the mounting sleeve (206).

6. The rear axle assembly of an electric tricycle as described in claim 1, characterized in that, The elastic component includes a spring (207), which is slidably sleeved on the mounting screw (201). The two ends of the spring (207) are in contact with one side of the welding plate (2) and the mounting sleeve plate (206), respectively.

7. The rear axle assembly of an electric tricycle as described in claim 1, characterized in that, The alarm structure includes: The U-shaped frame (3) is welded to the bottom of the electric tricycle frame (1); The adjusting screw (301) is threaded inside the U-shaped bracket (3); A trigger plate (302) is arranged at one end of the adjusting screw (301); The switch (303) and the alarm (304) are both arranged on the arc-shaped baffle (203), and the switch (303) and the alarm (304) are electrically connected to the same control module.

8. The rear axle assembly of an electric tricycle as described in claim 1, characterized in that, The alarm structure also includes an adjusting screw hole (305), which is located inside the U-shaped frame (3), and the adjusting screw (301) is threaded inside the adjusting screw hole (305).

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