Wheel anti-loosening structure

Abstract

The utility model discloses a wheel anti-loosening structure which comprises a rear axle system, a front axle system and a rear axle system. The wheel system comprises wheel mechanisms arranged at the two ends of the rear axle system; the transmission shaft is arranged in the rear axle system, one end of a transmission wheel is in meshed connection with the differential mechanism, the other end of the transmission wheel is connected with the wheel mechanism, and the transmission shaft is used for transmitting torque and power to the wheel mechanism to rotate the wheel mechanism to realize driving of the electro-tricycle; the fixed locking plate is arranged at one end, far away from the rear axle system, of the transmission shaft and is locked with the wheel mechanism; by arranging the fixing locking plate, the transmission shaft and the wheel mechanism can be locked, so that the situation that the transmission shaft and the wheel are loosened and fall off after long-time riding can be avoided, compared with a traditional mode that a pin lock and the fixing locking plate are used, the structural strength is higher, the rust breaking condition cannot occur, safety is improved, installation is easy, and cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric tricycles, and in particular to a wheel anti-loosening structure. Background Art

[0002] At present, electric tricycles are a very common means of transportation and carrying people and goods. They are loved by people because of their low price, easy operation, light structure and energy saving. They are widely used in narrow working environments such as narrow fields and greenhouses.

[0003] The electric tricycle has a rear axle for connecting the wheels and providing driving force to the wheels through the transmission shaft to realize the operation of the electric tricycle. By installing a rotating shaft into the rear axle, one end of the transmission shaft extends into the rear axle and is engaged with the differential, and the other end extends outside the rear axle and is connected to the wheels. To ensure the stability of the transmission shaft, the current transmission method is to lock the transmission shaft through a retaining spring or a pin lock. After riding for a long time, the retaining spring or the pin lock will loosen, the wheel will swing, and even the pin lock will break, causing the wheel to fall off, posing a great safety hazard. For this reason, we have proposed a wheel anti-loosening structure. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a wheel anti-loosening structure.

[0005] In a first aspect, the present application provides a wheel anti-loosening structure, comprising:

[0006] A rear axle system, wherein a differential is arranged on the rear axle system;

[0007] A wheel system, the wheel system comprising wheel mechanisms arranged at both ends of the rear axle system;

[0008] A transmission shaft, the transmission shaft is movably disposed in the rear axle system, one end of the transmission shaft is meshed and connected with the differential, and the other end extends to the outside of the rear axle system and is connected with the wheel mechanism, and is used to transmit torque to rotate the wheel mechanism;

[0009] A fixed locking plate is arranged at one end of the transmission shaft away from the rear axle system and is locked with the wheel mechanism to prevent the wheel mechanism from loosening.

[0010] According to the technical solution provided in the embodiment of the present application, the fixed locking piece includes a main body, and a through hole is opened through the main body. The through hole is used to accommodate the transmission shaft to pass through, so that the main body can be sleeved on the transmission shaft.

[0011] According to the technical solution provided in the embodiment of the present application, the fixed locking plate also includes a bending portion, which is fixedly arranged on the side wall of the main body, and has a first connection portion, a second connection portion and a third connection portion which are fixedly connected in sequence along a direction away from the main body, a first preset angle is formed between the first connection portion and the second connection portion, and an opening direction thereof is toward the wheel mechanism, a second preset angle is formed between the second connection portion and the third connection portion, and an opening direction thereof is toward a direction away from the wheel mechanism, for avoiding during installation.

[0012] According to the technical solution provided in the embodiment of the present application, a connecting hole is formed through the third connecting portion for locking with the wheel mechanism.

[0013] According to the technical solution provided in the embodiment of the present application, one end of the transmission shaft away from the rear axle system is key-connected to the wheel system to drive the wheel system to rotate.

[0014] According to the technical solution provided in the embodiment of the present application, a thread is provided on the circumferential outer wall of one end of the transmission shaft away from the rear axle system, and the fixed locking plate is sleeved on the end of the transmission shaft away from the rear axle system and is locked with the transmission shaft through a locking nut.

[0015] In summary, the technical solution specifically discloses a wheel anti-loosening structure, including a rear axle system, on which a differential is arranged; a wheel system, which includes wheel mechanisms arranged at both ends of the rear axle system; a transmission shaft, which is arranged in the rear axle system, and one end of the transmission wheel is meshed and connected with the differential, and the other end is connected with the wheel mechanism, and is used to transmit torque and power to the wheel mechanism, so that the wheel mechanism rotates and realizes the driving of the electric tricycle; a fixed lock plate, which is arranged at one end of the transmission shaft away from the rear axle system and is locked with the wheel mechanism;

[0016] By setting a fixed locking plate, the drive shaft can be locked, and the fixed locking plate is locked with the wheel mechanism, thereby preventing the drive shaft and wheel from loosening and falling off after a long period of riding. Compared with the traditional method of using a pin lock, the fixed locking plate has a stronger structural strength and will not rust or break, thus preventing the drive shaft and wheel from loosening and falling off, improving safety, simplifying installation, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 The figure is a schematic diagram of a wheel anti-loosening structure.

[0019] Figure 2 It is a schematic diagram of the fixed locking plate structure.

[0020] Numbers in the figure: 1, transmission shaft; 2, fixed lock plate; 3, main body; 4, bending part; 5, third connecting part; 6, wheel; 7, fastening nut; 8, locking nut. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Embodiment 1

[0024] Please refer to Figure 1 and Figure 2 As shown, a wheel anti-loosening structure includes a rear axle system, and a differential is arranged on the rear axle system for distributing torque and driving force and making the electric tricycle more stable when driving and turning;

[0025] The wheel system is connected to the rear axle system. The wheel system includes a wheel mechanism arranged at both ends of the rear axle system. The wheel mechanism includes a wheel 6 and a brake pan. Four mounting bolts are arranged circumferentially on the brake pan. Four mounting holes are opened on the wheel 6 corresponding to the four mounting bolts. The mounting bolts pass through the mounting holes and are locked by fastening nuts 7, so that the wheel 6 and the brake pan can be connected;

[0026] The wheel 6 and the brake pan are provided with corresponding through holes, and the inner walls of the through holes are provided with mounting keyways.

[0027] A transmission shaft 1 is arranged in the rear axle system and connected to the wheel 6;

[0028] Specifically, a differential is provided on the rear axle system, and an installation space is provided on the rear axle system, one end of the transmission shaft 1 extends into the installation space and meshes with the differential, so that the power and torque of the external driving source can be transmitted to the transmission shaft 1 through the differential;

[0029] The other end of the transmission shaft 1 is located outside the rear axle system and passes through the through hole;

[0030] It should be noted that a thread is provided on the circumferential side wall of one end of the transmission shaft 1 located outside the rear axle system, and an installation key is provided corresponding to the installation key slot. The transmission shaft 1 is connected to the wheel 6 key through the installation key. Thus, the power and torque of the external driving source are transmitted to the transmission shaft 1 through the differential, and then the transmission shaft 1 can drive the wheel mechanism to rotate, thereby realizing the driving of the electric tricycle.

[0031] One end of the transmission shaft 1 located outside the rear axle system is locked by a locking nut 8, so as to lock the connection with the wheel 6. In order to prevent the transmission shaft 1 from loosening and the wheel 6 from loosening or even falling off, a fixed locking plate 2 is provided on the transmission shaft 1;

[0032] Specifically, the fixed lock plate 2 includes a main body 3, which is a circular structure, a through hole is formed in the middle thereof, and is used to accommodate the transmission shaft 1, and an avoidance groove is provided on the inner wall of the through hole for avoiding the installation key on the transmission shaft 1, so that when the main body 3 is sleeved on one end of the transmission shaft 1 outside the rear axle system, the avoidance groove and the installation key are matched, so that the main body 3 can be tightly fitted to the outer wall of the transmission shaft 1;

[0033] Furthermore, the fixed locking piece 2 further includes a bending portion 4, which is fixedly arranged on the side wall of the main body 3, and the bending portion 4 includes a first connection portion, a second connection portion, and a third connection portion 5 which are fixedly connected in sequence in a direction away from the main body 3, and a first preset angle is formed between the first connection portion and the second connection portion, and a second preset angle is formed between the second connection portion and the third connection portion 5;

[0034] After the fixing lock plate 2 is sleeved on the end of the transmission shaft 1 outside the rear axle system, the first preset angle opening faces the wheel 6, and the second preset angle opening faces the side away from the wheel 6, so that when the fixing lock plate 2 is installed, the bent portion 4 can avoid the wheel 6 structure, which is convenient for installation;

[0035] Furthermore, a connecting hole is formed through the third connecting portion 5, and the connecting hole corresponds to one of the mounting holes on the wheel 6, so that one of the mounting bolts on the brake pot passes through the corresponding mounting hole and then passes through the connecting hole, and then is locked by the fastening nut 7;

[0036] Thus, the main body 3 is sleeved on the transmission shaft 1 and locked by the locking nut 8, and the bent portion 4 is sleeved on one of the mounting bolts and locked by the fastening nut 7, thereby ensuring a tight connection between the transmission shaft 1 and the wheel 6, and preventing the transmission shaft 1 and the wheel 6 from loosening and falling off, thereby improving safety.

[0037] Working principle: During installation, first install the rear axle system on the frame of the electric tricycle, then install the transmission shaft 1 into the rear axle system, so that one end of the transmission shaft 1 extends into the rear axle system and engages with the differential, and the other end of the transmission shaft 1 is located outside the rear axle system, and then install the wheel system, so that the end of the transmission shaft 1 located outside the rear axle system passes through the through holes of the wheel 6 and the brake pot, and ensures the key connection between the transmission shaft 1 and the wheel 6, and then install the fixed lock plate 2, so that the main body 3 is sleeved on the transmission shaft 1, and then the bent portion 4 is sleeved on one of the mounting bolts, and then the transmission shaft 1 is locked by the locking nut 8, and then the mounting bolt is locked by the tightening nut 7, thereby completing the installation of the fixed lock plate 2, so that the fixed lock plate 2 can have a tightening effect on the transmission shaft 1 and the wheel 6, avoiding the loosening and falling off of the transmission shaft 1 and the wheel 6 after long-term riding. Compared with the traditional pin lock form, it will not rust and break, improves safety, and saves costs.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A wheel anti-loosening structure, characterized in that: include: A rear axle system, wherein a differential is arranged on the rear axle system; A wheel system, the wheel system comprising wheel mechanisms arranged at both ends of the rear axle system; A transmission shaft (1), the transmission shaft (1) being movably arranged in the rear axle system, one end of which is meshedly connected with the differential, and the other end of which extends to the outside of the rear axle system and is connected with the wheel mechanism, for transmitting torque to rotate the wheel mechanism; A fixed locking plate (2), the fixed locking plate (2) being arranged at one end of the transmission shaft (1) away from the rear axle system and being locked with the wheel mechanism to prevent the wheel mechanism from loosening.

2. A wheel anti-loosening structure according to claim 1, characterized in that: The fixed locking plate (2) comprises a main body (3), and a through hole is formed through the main body (3). The through hole is used to accommodate the transmission shaft (1) to pass through, so that the main body (3) can be sleeved on the transmission shaft (1).

3. A wheel anti-loosening structure according to claim 2, characterized in that: The fixed locking piece (2) further comprises a bending portion (4), wherein the bending portion (4) is fixedly arranged on the side wall of the main body (3), and comprises a first connecting portion, a second connecting portion and a third connecting portion (5) which are fixedly connected in sequence in a direction away from the main body (3), wherein a first preset angle is formed between the first connecting portion and the second connecting portion, and an opening direction thereof is oriented toward the wheel mechanism, and a second preset angle is formed between the second connecting portion and the third connecting portion (5), and an opening direction thereof is oriented toward a direction away from the wheel mechanism, so as to avoid the occurrence of an accident during installation.

4. A wheel anti-loosening structure according to claim 3, characterized in that: The third connecting portion (5) is provided with a connecting hole through it, which is used for locking with the wheel mechanism.

5. A wheel anti-loosening structure according to claim 4, characterized in that: One end of the transmission shaft (1) away from the rear axle system is key-connected to the wheel system and is used to drive the wheel system to rotate.

6. A wheel anti-loosening structure according to claim 4, characterized in that: The circumferential outer wall of one end of the transmission shaft (1) away from the rear axle system is provided with a thread, and the fixed locking plate (2) is sleeved on the end of the transmission shaft (1) away from the rear axle system and is locked with the transmission shaft (1) by a locking nut (8).

Images