Bicycle booster connecting mechanism

Abstract

The utility model discloses a bicycle booster connecting mechanism which comprises a fixed seat, a movable seat, a left rotating cover, a right rotating cover, a screw rod and a spring, a first hinge part is arranged on the fixed seat, a polygonal inserting hole penetrating through the left end and the right end is formed in the first hinge part, and a left second hinge part and a right second hinge part are arranged on the movable seat. The first hinge part is arranged between the two second hinge parts, the left rotary cover is in damping fit with the second hinge part on the left side, a first polygonal plug is arranged at the axis of the left rotary cover, the right rotary cover is in damping fit with the second hinge part on the right side, and a second polygonal plug is arranged at the axis of the right rotary cover. The first polygonal plug and the second polygonal plug are inserted into the left end and the right end of the polygonal jack respectively, the screw rod is connected between the axis of the left rotary cover and the axis of the right rotary cover in a screwed mode, the screw rod is sleeved with the spring, and the two ends of the spring abut against the first polygonal plug and the second polygonal plug respectively. The utility model has the characteristics of convenient assembly, easy adjustment, strong compatibility, cost saving and the like.

Description

Technical Field

[0001] The utility model relates to a bicycle booster, in particular to a connecting mechanism of a bicycle booster. Background Art

[0002] Most of the existing bicycles are human-powered structures. To meet the application requirements of electric-assisted cycling, some electric boosters that can be matched with bicycles have emerged on the market. Such electric boosters include an assembled controller, a motorized hub, a battery pack, etc. The front end of the electric booster can be installed at positions such as the seat tube of the bicycle, and the rear end thereof has an electric wheel. The electric wheel abuts against the rear wheel of the bicycle to achieve power transmission, and the electric wheel is controlled to rotate to achieve a boosting effect. However, there are various types of existing bicycles and many categories of wheel sizes. When installing, it is necessary to select an electric booster with a suitable size, which requires designing and manufacturing electric boosters of multiple size types to meet the assembly requirements of existing bicycles, resulting in a significant increase in design and manufacturing costs. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a connecting mechanism of a bicycle booster that is convenient for assembly, easy to adjust, has strong compatibility, and saves costs in view of the deficiencies of the prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A connecting mechanism of a bicycle booster includes a fixed seat, a movable seat, a left-handed cover, a right-handed cover, a screw rod, and a spring. A first hinge portion is provided on the fixed seat, and a multi-sided jack that penetrates through the left and right ends is opened on the first hinge portion. There are two second hinge portions, left and right, on the movable seat. The first hinge portion is disposed between the two second hinge portions. The left-handed cover covers the outside of the left second hinge portion, and the left-handed cover is in damping cooperation with the left second hinge portion. A first multi-sided plug is provided at the center of the left-handed cover. The right-handed cover covers the outside of the right second hinge portion, and the right-handed cover is in damping cooperation with the right second hinge portion. A second multi-sided plug is provided at the center of the right-handed cover. The first multi-sided plug and the second multi-sided plug respectively pass through the two second hinge portions, and the first multi-sided plug and the second multi-sided plug are respectively inserted into the left and right ends of the multi-sided jack. The screw rod is screwed between the centers of the left-handed cover and the right-handed cover. The spring is sleeved on the screw rod, and the two ends of the spring respectively abut against the first multi-sided plug and the second multi-sided plug.

[0006] Preferably, a first annular end face external tooth is formed on the end face of the left-handed cover, which is concentric with the first multi-angle plug. A first annular end face internal tooth is formed on the outer side wall of the second hinge part located on the left side. The first annular end face external tooth and the first annular end face internal tooth are arranged in alignment and mesh with each other.

[0007] Preferably, a second annular end face external tooth is formed on the end face of the right-handed cover, which is concentric with the second multi-angle plug. A second annular end face internal tooth is formed on the outer side wall of the second hinge part located on the right side. The second annular end face external tooth and the second annular end face internal tooth are arranged in alignment and mesh with each other.

[0008] Preferably, both the first multi-angle plug and the second multi-angle plug are hexagonal plugs, and the multi-angle socket is a hexagonal socket.

[0009] Preferably, the screw rod passes through the right-handed cover and the two are rotationally matched, and the end of the screw rod is screwed to the left-handed cover.

[0010] Preferably, a counterbore is provided on the outer side of the right-handed cover, and the nut of the screw rod is arranged in the counterbore.

[0011] Preferably, through holes are provided on both of the second hinge parts. The first multi-angle plug and the second multi-angle plug respectively pass through the two through holes, and the diameter of the through holes is larger than the diameters of the first multi-angle plug and the second multi-angle plug.

[0012] Preferably, annular step openings are respectively formed at the edges of the two through holes, and the first annular end face internal tooth and the second annular end face internal tooth are respectively formed in the annular step openings at the edges of the two through holes.

[0013] In the bicycle booster connection mechanism disclosed by the present utility model, the fixed seat is used to connect to the bicycle seat tube and other places, playing a role in supporting and fixing. The movable seat is fixed to the front end of the bicycle booster. The rear wheel of the bicycle booster is used to abut against the bicycle tire, thereby driving the vehicle forward. During assembly, first place the first hinge portion between the two second hinge portions, install the left-handed cover and the right-handed cover on the outer sides of the two second hinge portions respectively, and screw the screw between the axles of the left-handed cover and the right-handed cover. By tightening the screw, the left-handed cover and the right-handed cover can be closely fitted with the two second hinge portions respectively. At the same time, the first multi-sided plug and the second multi-sided plug are respectively inserted into the left and right ends of the multi-sided socket, so that the left-handed cover and the right-handed cover are mutually clamped with the first hinge portion, thereby fixedly installing the bicycle booster on the bicycle. In order to adapt to the height of the bicycle and match the front wheel, when it is necessary to adjust the height position of the rear wheel, the screw can be loosened. Under the elastic force applied by the spring, the left-handed cover and the right-handed cover can be driven to separate from the two second hinge portions, so that the movable seat can flip relative to the fixed seat. Until the bicycle booster is adjusted to the appropriate angular position, then tighten the screw. Compared with the prior art, the present utility model has stronger compatibility, does not need to design and manufacture bicycle boosters of various sizes and models, effectively saving production and application costs. At the same time, the present utility model also has technical effects such as convenient assembly and easy adjustment. Brief Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the bicycle booster connection mechanism;

[0015] Figure 2 is the disassembly of the bicycle booster connection mechanism Figure 1 ;

[0016] Figure 3 is the disassembly of the bicycle booster connection mechanism Figure 2 ;

[0017] Figure 4 is the structural diagram of the bicycle booster. Detailed Embodiment

[0018] The present utility model will be described in more detail below in conjunction with the drawings and embodiments.

[0019] The present utility model discloses a bicycle booster connection mechanism, in combination with Figures 1 to 4As shown in the figure, it includes a fixed seat 1, a movable seat 2, a left-handed cover 3, a right-handed cover 4, a screw rod 5 and a spring 6. The fixed seat 1 is provided with a first hinge portion 10. A polygonal socket 11 penetrating through the left and right ends is formed on the first hinge portion 10. The movable seat 2 is provided with two left and right second hinge portions 20. The first hinge portion 10 is arranged between the two second hinge portions 20. The left-handed cover 3 covers the outside of the left second hinge portion 20, and the left-handed cover 3 is in damping cooperation with the left second hinge portion 20. A first polygonal plug 30 is provided at the center of the left-handed cover 3. The right-handed cover 4 covers the outside of the right second hinge portion 20, and the right-handed cover 4 is in damping cooperation with the right second hinge portion 20. A second polygonal plug 40 is provided at the center of the right-handed cover 4. The first polygonal plug 30 and the second polygonal plug 40 respectively pass through the two second hinge portions 20, and the first polygonal plug 30 and the second polygonal plug 40 are respectively inserted into the left and right ends of the polygonal socket 11. The screw rod 5 is screwed between the centers of the left-handed cover 3 and the right-handed cover 4. The spring 6 is sleeved on the screw rod 5, and the two ends of the spring 6 respectively abut against the first polygonal plug 30 and the second polygonal plug 40.

[0020] In the above structure, the fixed seat 1 is used to connect the bicycle seat tube and other places, playing a role of supporting and fixing. The movable seat 2 is fixed to the front end of the bicycle booster 100. The rear wheel 101 of the bicycle booster 100 is an electric wheel, which is used to abut against the tire of the bicycle, thereby driving the vehicle forward. During assembly, first place the first hinge portion 10 between the two second hinge portions 20, install the left-handed cover 3 and the right-handed cover 4 on the outsides of the two second hinge portions 20 respectively, and screw the screw rod 5 between the centers of the left-handed cover 3 and the right-handed cover 4. By tightening the screw rod 5, the left-handed cover 3 and the right-handed cover 4 can be tightly matched with the two second hinge portions 20 respectively. At the same time, the first polygonal plug 30 and the second polygonal plug 40 are respectively inserted into the left and right ends of the polygonal socket 11, so that the left-handed cover 3 and the right-handed cover 4 are mutually clamped with the first hinge portion 10, thereby fixedly installing the bicycle booster 100 on the bicycle. In order to adapt to the height of the bicycle and match the front wheel, when it is necessary to adjust the height position of the rear wheel 101, the screw rod 5 can be loosened. Under the elastic force applied by the spring 6, the left-handed cover 3 and the right-handed cover 4 can be driven to separate relative to the two second hinge portions 20, so that the movable seat 2 can flip relative to the fixed seat 1 until the bicycle booster 100 is adjusted to an appropriate angular position, and then the screw rod 5 can be tightened. Compared with the prior art, the compatibility of the present invention is stronger. There is no need to design and manufacture bicycle boosters of various sizes and models, effectively saving production and application costs. At the same time, the present invention also has technical effects such as convenient assembly and easy adjustment.

[0021] To ensure reliable cooperation between the left-handed cover 3 and the second hinge portion 20 on the left side, in this embodiment, in combination with Figure 2 and Figure 3 as shown, a first annular end face external tooth 31 concentric with the first multi-angle plug 30 is formed on the end face of the left-handed cover 3, and a first annular end face internal tooth 21 is formed on the outer side wall of the second hinge portion 20 on the left side. The first annular end face external tooth 31 and the first annular end face internal tooth 21 are aligned and meshed with each other.

[0022] Similarly, in combination with Figure 2 and Figure 3 as shown, a second annular end face external tooth 41 concentric with the second multi-angle plug 40 is formed on the end face of the right-handed cover 4, and a second annular end face internal tooth 22 is formed on the outer side wall of the second hinge portion 20 on the right side. The second annular end face external tooth 41 and the second annular end face internal tooth 22 are aligned and meshed with each other.

[0023] In the above structure, in this embodiment, it is preferably to adopt the way of meshing between the external teeth and the internal teeth to achieve damping cooperation. This connection method during clamping has the characteristics of high reliability and preventing slippage. However, in practical applications, it is not limited to tooth meshing, and other connection methods with high-strength damping can also be adopted.

[0024] As a preferred method, both the first multi-angle plug 30 and the second multi-angle plug 40 are hexagonal plugs, and the multi-angle socket 11 is a hexagonal socket. In practical applications, it can also be replaced with a four-corner plug, socket or an eight-corner plug, socket, etc. These replacement methods are all equivalent replacements made under the guidance of the spirit of the present utility model, so they all belong to the protection scope of the present utility model.

[0025] Regarding the preferred connection method of the screw rod 5, in this embodiment, the screw rod 5 passes through the right-handed cover 4 and the two are rotationally matched, and the end of the screw rod 5 is screwed to the left-handed cover 3.

[0026] On this basis, a counterbore 42 is provided on the outer side of the right-handed cover 4, and the nut of the screw rod 5 is arranged in the counterbore 42. For the convenience of screwing and adjusting, in this embodiment, a wrench socket, such as an internal hexagonal hole, etc., can be opened on the nut of the screw rod 5.

[0027] For the first multi - angular plug 30 and the second multi - angular plug 40 to pass through the two second hinge parts 20, and to ensure that the two second hinge parts 20 can rotate relative to the first multi - angular plug 30 and the second multi - angular plug 40, in this embodiment, through - holes 23 are provided on both of the two second hinge parts 20. The first multi - angular plug 30 and the second multi - angular plug 40 respectively pass through the two through - holes 23. The diameter of the through - hole 23 is larger than the diameters of the first multi - angular plug 30 and the second multi - angular plug 40.

[0028] As a preferred method, annular step openings 24 are respectively formed at the edges of the two through - holes 23. The first annular end - face internal teeth 21 and the second annular end - face internal teeth 22 are respectively formed within the annular step openings 24 at the edges of the two through - holes 23. Among them, by setting the annular step openings 24 in this embodiment, it helps to hide the connection part of the internal and external teeth, and can play a role in dust prevention and aesthetics.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent replacements, or improvements made within the technical scope of the present invention shall be included within the scope protected by the present invention.

Claims

1. A bicycle booster connection mechanism, characterized in that: The invention comprises a fixed seat (1), a movable seat (2), a left-handed cover (3), a right-handed cover (4), a screw rod (5) and a spring (6); the fixed seat (1) is provided with a first hinged portion (10); the first hinged portion (10) is provided with a multi-angle plug hole (11) penetrating the left and right ends; the movable seat (2) is provided with two left and right second hinged portions (20); the first hinged portion (10) is arranged between the two second hinged portions (20); the left-handed cover (3) covers the outer side of the second hinged portion (20) on the left side, and the left-handed cover (3) and the second hinged portion (20) on the left side are damped; the axis of the left-handed cover (3) is provided with a first multi-angle plug (30); the right-handed cover (4) covers the second hinged portion (20) on the right side; The right-hand rotating cover (4) is arranged on the outside of two hinged parts (20), and the right-hand rotating cover (4) is dampedly matched with the second hinged part (20) on the right side. A second multi-angle plug (40) is arranged at the axis of the right-hand rotating cover (4). The first multi-angle plug (30) and the second multi-angle plug (40) respectively pass through the two second hinged parts (20), and the first multi-angle plug (30) and the second multi-angle plug (40) are respectively plugged into the left and right ends of the multi-angle plug hole (11). The screw rod (5) is screwed and connected between the axis of the left-hand rotating cover (3) and the right-hand rotating cover (4). The spring (6) is sleeved on the screw rod (5), and the two ends of the spring (6) respectively abut against the first multi-angle plug (30) and the second multi-angle plug (40).

2. The bicycle booster connection mechanism according to claim 1, characterized in that: The end surface of the left-handed cover (3) is formed with a first annular end surface outer tooth (31) which is cocentric with the first polygonal plug (30), and the outer side wall of the second hinged portion (20) located on the left side is formed with a first annular end surface inner tooth (21), and the first annular end surface outer tooth (31) is aligned with the first annular end surface inner tooth (21) and the two are meshed with each other.

3. The bicycle booster connection mechanism according to claim 2, characterized in that: The end face of the right-handed cover (4) is formed with second annular end face external teeth (41) which are coaxial with the second polygonal plug (40), and the outer side wall of the second hinged portion (20) located on the right side is formed with second annular end face internal teeth (22), and the second annular end face external teeth (41) and the second annular end face internal teeth (22) are aligned and meshed with each other.

4. The bicycle booster connection mechanism according to claim 1, characterized in that: The first polygonal plug (30) and the second polygonal plug (40) are both hexagonal plugs, and the polygonal socket (11) is a hexagonal socket.

5. The bicycle booster connection mechanism according to claim 1, characterized in that: The screw rod (5) passes through the right-handed cover (4) and the two are rotationally matched, and the end of the screw rod (5) is screwed into the left-handed cover (3).

6. The bicycle booster connection mechanism according to claim 5, characterized in that: A countersunk hole (42) is provided on the outer side of the right-handed cover (4), and a nut of the screw rod (5) is arranged in the countersunk hole (42).

7. The bicycle booster connection mechanism according to claim 3, characterized in that: The two second hinged portions (20) are each provided with a through hole (23), the first polygonal plug (30) and the second polygonal plug (40) respectively pass through the two through holes (23), and the diameter of the through hole (23) is greater than the diameter of the first polygonal plug (30) and the second polygonal plug (40).

8. The bicycle booster connection mechanism according to claim 7, characterized in that: The edges of the two through holes (23) are respectively formed with annular step openings (24), and the first annular end surface inner teeth (21) and the second annular end surface inner teeth (22) are respectively formed in the annular step openings (24) at the edges of the two through holes (23).

Images