Electric-assisted vehicle center motor mounting rack with shock absorption function

Abstract

The utility model discloses a kind of electric power-assisted cycle middle motor mounting rack with shock-absorbing function, including motor connecting frame, the bottom of motor connecting frame is rotatably connected with motor lower bracket, and the inside of motor connecting frame and motor lower bracket is fixedly connected with shock-absorbing rubber pad.Belong to electric power-assisted cycle technical field.The electric power-assisted cycle middle motor mounting rack with shock-absorbing function, the upper surface of motor is attached with the shock-absorbing rubber pad on motor connecting frame, then rotates motor lower bracket and makes it with motor connecting frame closure, at this time, the shock-absorbing rubber pad on motor lower bracket will be attached with the lower surface of motor, finally, limit bolt is tightened to connect and fix between motor lower bracket and motor connecting frame, motor connecting frame and motor lower bracket can be respectively coated to the upper end and lower end of motor, and under the action of shock-absorbing rubber pad, shock-absorbing protection is carried out to motor, the situation that the abrasion of motor component can be avoided to intensify while improving riding comfort.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and more specifically, to a mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function. Background Technology

[0002] Electric-assisted bicycles, also known as electric-assisted bicycles, are two-wheeled vehicles that are based on traditional bicycles but equipped with electric drive systems such as motors, batteries, and controllers.

[0003] As the core power component of e-bikes, the stability and shock absorption performance of the mounting bracket of the mid-drive motor directly affect the user's riding experience, motor lifespan, and overall safety of the e-bike. Currently, most e-bikes use bolts to connect and fix the mid-drive motor to the motor mounting bracket. This rigid connection easily transmits the impact of road bumps to the inside of the motor, leading to increased wear and noise, and also affecting riding comfort. Therefore, we provide an e-bike mid-drive motor mounting bracket with shock absorption function. Utility Model Content

[0004] The purpose of this utility model is to provide a mid-mounted motor mounting bracket for electric bicycles with shock absorption function, so as to solve the problems mentioned in the background art above:

[0005] Currently, most electric bicycles use bolts to connect and fix the mid-mounted motor to the motor mounting bracket. This rigid connection easily transmits the impact of road bumps to the inside of the motor, leading to increased wear and tear on components, increased noise, and also affecting riding comfort.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A shock-absorbing mounting bracket for a mid-mounted motor of an electric-assist bicycle includes a motor connecting bracket. A lower motor support is rotatably connected to the bottom of the motor connecting bracket. Both the motor connecting bracket and the lower motor support have shock-absorbing rubber pads fixedly connected inside. These rubber pads provide shock absorption and buffering for the motor mounted between the motor connecting bracket and the lower motor support. The lower motor support has a connecting hole inside, and a connecting rod is slidably connected inside the connecting hole. The connecting rod is fixedly connected to the motor connecting bracket. A bolt hole is located on the side of the lower motor support away from the motor connecting bracket, communicating with the connecting hole. A limit bolt is threaded into the bolt hole. A limit groove is located on the side of the connecting rod near the limit bolt. The limit groove cooperates with the limit bolt to limit the movement between the connecting rod and the connecting hole.

[0008] Preferably, there are two connecting holes, which are symmetrically distributed. The motor lower bracket and the motor connecting frame are connected and fixed by two sets of connecting rods, connecting holes, limiting grooves and limiting bolts.

[0009] Preferably, both the connecting socket and the connecting rod are arc-shaped structures, allowing the motor lower bracket and the motor connecting bracket to rotate open and close. The arc-shaped connecting socket and the connecting rod prevent jamming when they are connected.

[0010] Preferably, the cross-section of the limiting groove is a right-angled trapezoidal structure. When the limiting bolt is tightened, the limiting bolt will enter the limiting groove. Since the cross-section of the limiting groove is a right-angled trapezoidal structure, the limiting bolt will cause the connecting rod in the connecting hole to continue to move downward by squeezing the inclined surface, which can increase the tightness between the motor lower bracket and the motor connecting bracket.

[0011] Preferably, an installation groove is provided inside the connecting rod and below the limiting groove. A limiting rod is slidably connected inside the installation groove. A spring is provided between the installation groove and the limiting rod. One end of the spring is fixedly connected to the connecting rod, and the other end of the spring is fixedly connected to the limiting rod. After the connecting rod passes through the connecting hole, the limiting rod inside the installation groove will automatically pop out under the elastic force of the spring. The limiting rod can initially position the lower motor bracket, so that the lower motor bracket and the motor connecting frame will not open automatically.

[0012] Preferably, the outer end of the connecting rod away from the motor connecting frame is provided with a first rounded corner, and the outer end of the limiting top rod away from the spring is provided with a second rounded corner. When the motor lower bracket and the motor connecting frame are assembled, the connecting rod needs to be inserted and pass through the connecting socket. The first rounded corner on the connecting rod can play a guiding role, thereby reducing the difficulty of connecting the connecting rod and the connecting socket. During the process of connecting the connecting rod and the connecting socket, under the action of the second rounded corner, the inner wall edge of the connecting socket can squeeze the limiting top rod into the installation groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1) When using this shock-absorbing electric bicycle mid-drive motor mounting bracket, place the motor inside the motor connecting bracket so that the upper surface of the motor is in contact with the shock-absorbing rubber pads on the motor connecting bracket. Then rotate the lower motor bracket to close it with the motor connecting bracket. At this time, the shock-absorbing rubber pads on the lower motor bracket will be in contact with the lower surface of the motor. Finally, tighten the limit bolts to connect and fix the lower motor bracket and the motor connecting bracket. The motor connecting bracket and the lower motor bracket can cover the upper and lower ends of the motor respectively. At the same time, the shock-absorbing rubber pads provide shock absorption and protection for the motor, improving riding comfort and preventing accelerated wear of motor components.

[0015] 2) When using this electric bicycle mid-drive motor mounting bracket with shock absorption function, the limiting rod automatically pops out when the connecting rod is fully inserted through the connecting hole. The limiting rod can initially position the motor lower bracket. The motor lower bracket will not separate from the motor connecting frame when the user does not lift the motor lower bracket, which can reduce the user's workload. Since the cross-section of the limiting groove is a right-angled trapezoidal structure, when the limiting bolt is pressed against the inclined surface on the limiting groove, the limiting bolt will drive the connecting rod to continue to move downward by squeezing the inclined surface, thereby increasing the tightness between the motor lower bracket and the motor connecting frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting rod of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the entire present invention;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the image.

[0020] The following are the labels in the diagram: 1. Motor connecting bracket; 2. Motor lower bracket; 3. Shock-absorbing rubber pad; 4. Connecting socket; 5. Connecting rod; 6. Bolt hole; 7. Limiting bolt; 8. Limiting groove; 9. Mounting slide; 10. Limiting top rod; 11. Spring; 12. First rounded corner; 13. Second rounded corner. Detailed Implementation

[0021] 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 ordinary users in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 A shock-absorbing electric bicycle motor mounting bracket includes a motor connecting frame 1, a lower motor bracket 2 rotatably connected to the bottom of the motor connecting frame 1, and shock-absorbing rubber pads 3 fixedly connected inside both the motor connecting frame 1 and the lower motor bracket 2. The shock-absorbing rubber pads 3 provide shock absorption and buffering for the motor mounted between the motor connecting frame 1 and the lower motor bracket 2. A connecting insertion hole 4 is provided inside the lower motor bracket 2, and a connecting rod 5 is slidably connected inside the connecting insertion hole 4. The connecting rod 5 is fixedly connected to the motor connecting frame 1. A bolt hole 6 is provided on the side of the lower motor bracket 2 away from the motor connecting frame 1, and the bolt hole 6 communicates with the connecting insertion hole 4. A limit bolt 7 is threaded inside the bolt hole 6. A limit groove 8 is provided on the side of the connecting rod 5 near the limit bolt 7. The limit groove 8 works in conjunction with the limit bolt 7 to limit the connection between the connecting rod 5 and the connecting insertion hole 4, thereby achieving the connection and fixation between the lower motor bracket 2 and the motor connecting frame 1.

[0023] Furthermore, there are two connection holes 4, which are symmetrically distributed. The motor lower bracket 2 and the motor connecting bracket 1 are connected and fixed by two sets of connection rods 5, connection holes 4, limiting grooves 8 and limiting bolts 7 to ensure stability.

[0024] Furthermore, both the connecting socket 4 and the connecting rod 5 are arc-shaped structures, allowing the motor lower bracket 2 and the motor connecting frame 1 to rotate open and close. The center of the arc-shaped connecting socket 4 and the connecting rod 5 is on the rotating shaft between the motor lower bracket 2 and the motor connecting frame 1, ensuring that there is no jamming when the connecting rod 5 and the connecting socket 4 are engaged.

[0025] Furthermore, the cross-section of the limiting groove 8 is a right-angled trapezoidal structure. When the limiting bolt 7 is tightened, the limiting bolt 7 will enter the interior of the limiting groove 8. Since the cross-section of the limiting groove 8 is a right-angled trapezoidal structure, when the limiting bolt 7 is pressed against the inclined surface on the limiting groove 8, it can drive the connecting rod 5 in the connecting hole 4 to continue to move downward by squeezing the inclined surface, thereby increasing the tightness between the motor lower bracket 2 and the motor connecting bracket 1.

[0026] Furthermore, an installation groove 9 is provided inside the connecting rod 5 and below the limiting groove 8. A limiting rod 10 is slidably connected inside the installation groove 9. A spring 11 is provided between the installation groove 9 and the limiting rod 10. One end of the spring 11 is fixedly connected to the connecting rod 5, and the other end of the spring 11 is fixedly connected to the limiting rod 10. After the connecting rod 5 passes through the connecting hole 4, the limiting rod 10 inside the installation groove 9 will automatically pop out under the elastic force of the spring 11. The limiting rod 10 can initially position the motor lower bracket 2, so that the motor lower bracket 2 and the motor connecting frame 1 will not automatically open. In this way, the user does not have to lift the motor lower bracket 2 all the time, which can reduce the user's workload.

[0027] Furthermore, the outer end of the connecting rod 5 away from the motor connecting frame 1 is provided with a first rounded corner 12, and the outer end of the limiting top rod 10 away from the spring 11 is provided with a second rounded corner 13. When the motor lower bracket 2 and the motor connecting frame 1 are assembled, the connecting rod 5 needs to be inserted and pass through the connecting socket 4. The first rounded corner 12 on the connecting rod 5 can play a guiding role, thereby reducing the difficulty of connecting the connecting rod 5 and the connecting socket 4. During the process of connecting the connecting rod 5 and the connecting socket 4, under the action of the second rounded corner 13, the inner wall edge of the connecting socket 4 can squeeze the limiting top rod 10 into the mounting groove 9, so that the limiting top rod 10 will not hinder the connection between the connecting rod 5 and the connecting socket 4.

[0028] The usage steps of this utility model are as follows: When using this electric bicycle mid-mounted motor mounting bracket with shock absorption function, place the motor inside the motor connecting bracket 1, so that the upper surface of the motor is in contact with the shock-absorbing rubber pad 3 on the motor connecting bracket 1. Then rotate the lower motor bracket 2 to close it with the motor connecting bracket 1. During this process, the connecting rod 5 on the motor connecting bracket 1 will be inserted into and pass through the connecting hole 4 on the lower motor bracket 2. Under the action of the second rounded corner 13, the inner wall edge of the connecting hole 4 can squeeze the limiting rod 10 into the mounting groove 9, and at the same time compress the spring 11 inside the mounting groove 9. When the connecting rod 5 has completely passed through the connecting hole 4, under the elastic force of the spring 11, the limiting rod 10 inside the mounting groove 9 will automatically pop out. The limiting rod 10 can initially position the lower motor bracket 2. When the motor lower bracket 2 is lifted, it will not separate from the motor connecting frame 1. At this time, the shock-absorbing rubber pad 3 on the motor lower bracket 2 will be in contact with the lower surface of the motor. Finally, tighten the limiting bolt 7 so that the limiting bolt 7 enters the limiting groove 8 on the connecting rod 5. Since the cross-section of the limiting groove 8 is a right-angled trapezoidal structure, when the limiting bolt 7 is pressed against the inclined surface on the limiting groove 8, the limiting bolt 7 will drive the connecting rod 5 to continue to move downward by squeezing the inclined surface, thereby increasing the tightness between the motor lower bracket 2 and the motor connecting frame 1. The motor connecting frame 1 and the motor lower bracket 2 can cover the upper and lower ends of the motor respectively to achieve the installation and fixation of the motor. At the same time, the shock-absorbing rubber pad 3 will provide shock absorption protection for the motor, improve riding comfort and prevent the motor components from being worn out.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Users in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mid-mounted motor mounting bracket for an electric-assisted bicycle with shock absorption function, comprising a motor connecting bracket (1), wherein a lower motor support bracket (2) is rotatably connected to the bottom of the motor connecting bracket (1), and shock-absorbing rubber pads (3) are fixedly connected inside both the motor connecting bracket (1) and the lower motor support bracket (2), characterized in that: The motor lower bracket (2) has a connecting hole (4) inside, and a connecting rod (5) is slidably connected inside the connecting hole (4). The connecting rod (5) is fixedly connected to the motor connecting frame (1). The motor lower bracket (2) has a bolt hole (6) on the side away from the motor connecting frame (1) inside. The bolt hole (6) communicates with the connecting hole (4). A limit bolt (7) is threaded inside the bolt hole (6). A limit groove (8) is opened on the side of the connecting rod (5) near the limit bolt (7). The limit groove (8) is used in conjunction with the limit bolt (7).

2. The mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function according to claim 1, characterized in that: There are two connection sockets (4), and the two connection sockets (4) are symmetrically distributed.

3. The mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function according to claim 1, characterized in that: Both the connecting socket (4) and the connecting rod (5) are arc-shaped structures.

4. The mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function according to claim 1, characterized in that: The cross-section of the limiting groove (8) is a right-angled trapezoidal structure.

5. A mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function according to claim 1, characterized in that: An installation groove (9) is provided inside the connecting rod (5) and below the limiting groove (8). A limiting rod (10) is slidably connected inside the installation groove (9). A spring (11) is provided between the installation groove (9) and the limiting rod (10). One end of the spring (11) is fixedly connected to the connecting rod (5), and the other end of the spring (11) is fixedly connected to the limiting rod (10).

6. A mounting bracket for a mid-mounted motor of an electric bicycle with shock absorption function according to claim 5, characterized in that: The outer end of the connecting rod (5) away from the motor connecting frame (1) is provided with a first rounded corner (12), and the outer end of the limiting top rod (10) away from the spring (11) is provided with a second rounded corner (13).

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