Assembling structure of sidecar hopper and sidecar frame

Abstract

The invention discloses an assembling structure of a sidecar hopper and a sidecar frame. The assembling structure of the side bucket and the side frame comprises a connecting seat arranged on the side frame, an upper connecting column arranged at the lower end of the side bucket and a locking device used for locking the upper connecting column and the connecting seat, and a first mounting cavity is formed in the connecting seat; the upper connecting column is provided with a second mounting cavity; the connecting base and the upper connecting column are provided with inserting openings, and positioning openings are formed in the two side walls of the connecting base and the two side walls of the upper connecting column. The locking device comprises a mounting seat with an insertion opening penetrating into the second mounting cavity, two limiting plates arranged on the mounting seat, a first handle connected with the mounting seat and limited outside the rear side of the connecting seat, and a first elastic piece; the first elastic piece is connected between the two limiting plates, the first elastic piece pushes the limiting plates to expand outwards to enter the two positioning openings when stretching, and when force in the opposite direction is applied to the two limiting plates, the two limiting plates are folded inwards and compress the first elastic piece. According to the assembling structure of the side bucket and the side frame, the side bucket and the frame can be rapidly assembled.

Description

Technical Field

[0001] The invention relates to the technical field of sidecar three-wheeled motorcycles, in particular to an assembly structure of a sidecar and a sidecar frame. Background Art

[0002] A sidecar motorcycle, also commonly known as a "sidecar", has a three-point support structure, forming a stable triangular layout. It does not need to maintain a balance between itself and the vehicle body at all times when riding. This design has obvious advantages when driving at low speeds and parking. This design reduces the risk of reversing and is especially suitable for riders with insufficient height or strength. The sidecar can provide additional storage space and is always loved by some people.

[0003] The existing sidecar connection device of the sidecar of the sidecar three-wheeled motorcycle usually uses bolts to fix the sidecar to the sidecar frame. Although the structure is simple, the bolts are located below the sidecar and it is inconvenient to turn the bolts. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an assembly structure of a side bucket and a side frame which can quickly assemble the side bucket and the frame.

[0005] In order to solve the above problems, the present invention provides an assembly structure of a sidecar and a side frame, which is used for assembling the sidecar on the side frame. The assembly structure of the sidecar and the side frame comprises a connecting seat arranged on the side frame, an upper connecting column arranged at the lower end of the sidecar, and a locking device for locking the upper connecting column and the connecting seat. A first mounting cavity penetrating upward is arranged in the connecting seat; the upper connecting column has a second mounting cavity penetrating downward; the rear side walls of the connecting seat and the upper connecting column are coaxially provided with sockets, and the left and right side walls of the connecting seat and the upper connecting column are provided with positioning openings;

[0006] The locking device includes a mounting seat that can be inserted into the second mounting cavity from the socket, two limit plates arranged on the left and right sides of the mounting seat, a first handle connected to the mounting seat and limited by the socket to the outside of the rear side of the connecting seat, and a first elastic member; the two limit plates can be opened outward or retracted inward relative to the corresponding side walls of the mounting seat, the first elastic member is connected between the two limit plates, and when the first elastic member is extended, it can push the two limit plates to open outward to enter the two positioning openings on the left and right side walls respectively; when the two limit plates are applied with forces in relative directions, the two limit plates retract inward to exit the two positioning openings and compress the first elastic member.

[0007] Furthermore, the locking device further comprises a sleeve, a second elastic member and a second handle located at the front side of the mounting seat;

[0008] The second elastic member is disposed within the sleeve. The front end of the second elastic member is connected to the front side wall of the sleeve, and the rear end is connected to the front end of the mounting base. The front end of the second pull handle passes through the mounting base and is connected to the sleeve, and the rear end of the second pull handle is limited to the rear side outside of the connecting seat by the first pull handle.

[0009] The inner diameter of the sleeve is greater than the total distance when the two limiting plates are folded. When a backward pulling force is applied to the sleeve by the second pull handle, the sleeve slides backward, and its inner wall applies a force backward and inward to the two limiting plates, causing the two limiting plates to be passively folded into the sleeve, so that the two limiting plates withdraw from the two positioning openings. When the first pull handle applies a backward force to the mounting base in the state where the two limiting plates are folded into the sleeve, the locking device quickly withdraws outside the connecting seat.

[0010] Further, positioning holes are coaxially provided on the front side walls of the connecting seat and the upper connecting column, and the positioning holes penetrate the corresponding front side walls in the wall thickness direction.

[0011] The sleeve has a small cylinder body with an outer diameter adapted to the inner diameter of the positioning hole and a large cylinder body located at the rear end of the small cylinder body and having an outer diameter larger than the positioning hole. The small cylinder body can be inserted forward into the positioning hole, and the front end face of the large cylinder body can abut against the front side inner wall of the upper connecting column or the connecting seat.

[0012] The second elastic member is disposed in the large cylinder body, and the inner diameter of the large cylinder body is greater than the total distance when the two limiting plates are folded.

[0013] Further, the first pull handle is a hollow rectangular frame, and the front side wall of the rectangular frame is connected to the rear end face of the mounting base.

[0014] Further, the second pull handle includes a pull rod and a handle. The front end of the pull rod freely passes through the front side wall of the rectangular frame, the mounting base, and the second elastic member and is fixedly connected to the front side wall of the small cylinder body. The handle is located within the rectangular frame and is screwed to the rear end of the pull rod.

[0015] Further, the mounting base includes a frame body for guiding and a mounting rod for mounting the limiting plates. The second pull handle is mounted on the frame body, the mounting rod is fixed on the frame body, and the width of the mounting rod is smaller than the width within the sleeve.

[0016] Further, the projection of the limiting plate in the horizontal direction has a narrow tip at the front end and a wide end at the rear end. The tip is pivotally connected to the mounting rod. When the limiting plate is unfolded, the outer side surface of the limiting plate is an inclined surface that slopes outward, and the rear end face of the limiting plate, when unfolded, fits with the rear side edge of the positioning opening.

[0017] Further, the first elastic member is a spring piece, and both ends of the spring piece are embedded in the limiting plate, and the first elastic member is in an M shape.

[0018] Further, the connecting seat includes a lower seat body, an upper seat body for fixing on the vehicle frame, and a lower connecting column provided with a first installation cavity. The upper seat body is connected to the lower seat body to clamp and fix on the vehicle frame. The lower connecting column is fixed on the upper seat body, and the upper connecting column is inserted into the first installation cavity of the lower connecting column.

[0019] Further, the upper seat body and the lower seat body form a T-shaped installation cavity together, and the side vehicle frame is located in the T-shaped installation cavity.

[0020] When assembling the assembly structure of the side bucket and the side vehicle frame of the present invention, insert the side bucket into the connecting seat, and then insert the entire locking device forward into the second installation cavity. Under the action of the first elastic member, the two limiting plates are unfolded, so that the two limiting plates respectively enter the two positioning openings on the left and right side walls, thereby fixing the connecting seat and the upper connecting column. Only insertion is required to complete the assembly, and the assembly is convenient and fast. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a preferred embodiment of the assembly structure of the side bucket and the side vehicle frame of the present invention.

[0022] Figure 2 is a schematic structural diagram of the connecting seat.

[0023] Figure 3 is a schematic structural diagram of the upper connecting column.

[0024] Figure 4 is a cross-sectional view of the upper connecting column, the connecting seat and the locking device.

[0025] Figure 5 is Figure 4 a partial enlarged view of A in

[0026] Figure 6 is a schematic structural diagram of the locking device.

[0027] Figure 7 is a schematic structural diagram when the limiting plate is unfolded.

[0028] Figure 8 is a schematic structural diagram when the limiting plate is locked.

[0029] Figure 9 is a schematic structural diagram of the mounting seat.

[0030] Figure 10 is a schematic structural diagram of the sleeve.

[0031] Figure 11It is a schematic structural diagram when the limiting plate has a movable space at the positioning opening.

[0032] Figure 12 It is a schematic structural diagram when the limiting plate is locked by the sleeve.

[0033] The meanings of the reference numerals in the drawings are as follows:

[0034] Side bucket 1, upper connecting column 11, second installation cavity 111, side vehicle frame 2, connecting seat 3, lower seat body 31, upper seat body 32, lower connecting column 33, first installation cavity 331, T-shaped installation cavity 34, locking device 4, limiting plate 41, first elastic member 42, mounting seat 43, frame body 431, mounting rod 432, through hole 4321, second elastic member 44, sleeve 45, small cylinder body 451, large cylinder body 452, second handle 46, pull rod 461, handle 462, first handle 47, socket 51, positioning opening 52, positioning hole 53. Specific embodiments

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] As Figure 1 shown, the assembly structure of the side bucket and the side vehicle frame of the present invention is used to assemble the side bucket on the side vehicle frame. The assembly structure of the side bucket and the side vehicle frame includes a side bucket 1, a side vehicle frame 2, an upper connecting column 11 provided on the side bucket 1, a connecting seat 3 provided on the side vehicle frame 2, and a locking device 4 for locking the upper connecting column 11 and the connecting seat 3. The upper connecting column 11 is inserted into the connecting seat 3, and the locking device 4 is inserted into the upper connecting column 11 and the connecting seat 3 to connect the upper connecting column 11 and the connecting seat 3, thereby fixing the side bucket 1 and the side vehicle frame 2.

[0037] As Figure 2 shown, the connecting seat 3 includes a lower seat body 31, an upper seat body 32, and a lower connecting column 33. The upper seat body 32 and the lower seat body 31 are connected by bolts, so that the upper seat body 32 and the lower seat body 31 are clamped and fixed on the side vehicle frame 2. The upper seat body 32 and the lower seat body 31 form a T-shaped installation cavity 34 in combination, and the side vehicle frame 2 is located in the T-shaped installation cavity 34, so as to ensure that the connecting seat 3 does not shake. The lower connecting column 33 is welded and fixed on the upper seat body 32. The lower connecting column 33 has a first installation cavity 331 that penetrates upward, and the upper connecting column 11 is inserted into the first installation cavity 331 of the lower connecting column 33. As Figure 3As shown, the upper connecting column 11 has a second installation cavity 111 that penetrates downward. Socket openings 51 are coaxially provided on both the upper connecting column 11 and the lower connecting column 33. The socket openings 51 are located on the rear side walls of the lower connecting column 11 and the upper connecting column 33. Positioning openings 52 are provided on the left and right side walls of the upper connecting column 11 and the lower connecting column 33. The locking device is inserted into the second installation cavity 111 from the socket opening 51. At the same time, the positioning opening 52 cooperates with the locking device 4 to connect the lower connecting column 33 and the upper connecting column 11.

[0038] As Figures 4 to 8As shown, the locking device 4 includes a limit plate 41, a first elastic member 42, a mounting seat 43, a second elastic member 44, a sleeve 45, a second handle 46 and a first handle 47. The limit plate 41 is pivotally mounted on the mounting seat 43. Four limit plates 41 are arranged on the mounting seat 43, that is, the four limit plates 41 are divided into two groups, and each group is symmetrically arranged with two limit plates 41, one of which is arranged above the mounting seat 43, and the other is arranged below the mounting seat 43. The limit plates 41 arranged on the left and right of the mounting seat 43 can ensure that the upper connecting column 11 and the lower connecting column 33 are uniformly stressed; the limit plates 41 arranged above and below the mounting seat 43 can enhance the stress of the limit plates 41, and can withstand higher vertical pulling forces; of course, in other embodiments, only one group can be arranged, which can be above or below the mounting seat 43. The two ends of the first elastic member 42 are connected to the left and right limit plates 41. The first elastic member 42 is used to reset the left and right limit plates 41, that is, when the first elastic member 42 is extended, it can push the two limit plates 41 to open outwards to enter the two positioning openings 52 of the left and right side walls respectively. When the two limit plates 41 are applied with forces in opposite directions, the two limit plates 41 are retracted inwards to exit the two positioning openings 52 and compress the first elastic member 42. The first handle 47 is fixed to the mounting seat 43 by welding. The first handle 47 is used to pull the mounting seat 43. The first handle 47 is limited by the socket 51 outside the rear side of the lower connecting column 33, which is convenient for pulling the first handle 47. Pulling the first handle 47 can change the position of the mounting seat 43, thereby changing the position of the limit plate 41. The front end of the second handle 46 passes through the mounting seat 43 and is connected to the sleeve 45. The rear end of the second handle 46 is limited by the first handle 47 to the rear side of the connecting seat 43. The second handle 46 is used to pull the sleeve 45 to move. The sleeve 45 is located at the front side of the mounting seat 43. The sleeve 45 is used to close the limit plate 41. The inner diameter of the sleeve 45 is greater than the total distance between the left and right limit plates 41 when they are closed. The total distance refers to the distance between the outer sides of the two limit plates 41 in this state. When the second handle 46 applies a backward pulling force to the sleeve 45, the sleeve 45 slides backward and its inner wall applies force backward and inward to the left and right limit plates 41, so that the left and right limit plates 41 are passively closed in the sleeve 45, and then the limit plates 41 are withdrawn from the two positioning openings 52.The front end of the second elastic member 44 is connected to the sleeve 45, and the rear end of the second elastic member 44 is connected to the mounting base 43. The second return spring is used to reset the sleeve 45 and the mounting base 43. When the sleeve 45 and the mounting base 43 are inserted into the upper connecting column 11 and the lower connecting column 33, the second elastic member 44 resets the sleeve 45 and the mounting base 43, so that the front end of the sleeve 45 abuts against the lower connecting column 33, and at the same time the mounting base 43 moves backward, and finally the limiting plate 41 is clamped on the positioning opening 52.

[0039] As Figure 9 shown, the mounting base 43 includes a frame body 431 and a mounting rod 432. The mounting rod 432 is fixed to the frame body 431 by welding. The first handle 47 is mounted on the frame body 431. The size of the frame body 431 is the same as the size of the socket 51, so that the frame body 431 can play a guiding role to ensure that the mounting rod 432 always moves horizontally. The limiting plate 41 is pivotally connected to the mounting rod 432. The width of the mounting rod 432 is smaller than the width inside the sleeve 45. Usually, the width of the mounting rod 432 is set to be adapted to the width inside the sleeve 45 to ensure that the sleeve 45 can move along the mounting rod 432 and play a guiding role. A through hole 4321 is provided on the mounting rod 432. The second handle 46 passes through the through hole 4321 and is connected to the sleeve 45, so that the mounting rod 432 also plays a role in guiding the second handle 46 to ensure that the second handle 46 always moves horizontally, and further ensures that the sleeve 45 always moves horizontally. Of course, in other embodiments, in order to ensure the horizontal movement of the sleeve 45, a guiding slide rail can also be provided or a flat plate can be provided on the moving plane of the sleeve 45.

[0040] As Figure 2 and Figure 3 shown, positioning holes 53 are coaxially provided on the front side walls of the lower connecting column 33 and the upper connecting column 11. The positioning holes 53 penetrate the corresponding front side walls along the wall thickness direction. As Figure 10As shown, the sleeve 45 has a small cylinder body 451 with an outer diameter adapted to the inner diameter of the positioning hole 53 and a large cylinder body 452 located at the rear end of the small cylinder body 451 and having an outer diameter larger than that of the positioning hole 53. The small cylinder body 451 can be inserted forward into the positioning hole 53. In this embodiment, the inner diameter of the positioning hole 53 on the upper connecting column 11 is larger than the inner diameter of the positioning hole 53 on the lower connecting column 33 and smaller than the outer diameter of the large cylinder body 452. The front end face of the large cylinder body 452 can abut against the front inner wall of the lower connecting column 33. In other embodiments, when the inner diameters of the positioning holes 53 of the upper connecting column 11 and the lower connecting column 33 are the same, it abuts against the front inner wall of the upper connecting column 11. The front end of the second elastic member 44 is disposed in the large cylinder body 452. The inner diameter of the large cylinder body 452 is larger than the total distance when the two limiting plates 41 are folded, ensuring that the limiting plates 41 can be pushed to fold.

[0041] The first elastic member 42 is a spring piece. Both ends of the spring piece are embedded in the limiting plate 41 to ensure that the first elastic member 42 can be stably fixed on the limiting plate 41. The first elastic member 42 is in an M shape. Using a spring piece can make it more convenient to design the shape of the first elastic member 42. By the shape of the first elastic member 42, the deformation at the connection position between the first elastic member 42 and the limiting plate 41 can be reduced, the service life of the first elastic member 42 can be extended, and the interference of the mounting rod 432 on the first elastic member 42 can be avoided. The second elastic member 44 is usually a spring, which allows the second handle 46 to pass through the second elastic member 44 and be connected to the sleeve 45, that is, it will not interfere with the connection between the second handle 46 and the sleeve 45.

[0042] The first handle 47 is a hollow rectangular frame, which is convenient for pulling the first handle 47 and at the same time provides a moving space for pulling the second handle 46. The second handle 46 includes a pull rod 461 and a handle 462. The front end of the pull rod 461 freely passes through the front side wall of the first handle 47, the frame body 431, and the second elastic member 44 and is fixedly connected to the front side wall of the small sleeve 451. The rear end of the pull rod 461 is connected to the handle 462. The handle 462 is screwed on the pull rod 461 for easy assembly. The handle 462 is located within the rectangular frame of the first handle 47. The width of the first handle 47 is larger than the width of the socket 51 to ensure that the second handle 46 and the first handle 47 are always outside the lower connecting column 33 for convenient pulling.

[0043] When assembly is required, first insert the upper connecting column 11 on the side bucket 1 into the lower connecting column 33 of the connecting seat 3, and then insert the entire locking device 4 into the lower connecting column 33 and the upper connecting column 11 through the socket 51. When inserting, use the first handle 47 as the force-applying part and push it into the lower connecting column 33 and the lower connecting column 33. During the insertion process, the limiting plate 41 will first pass through the socket 51. Due to the limitation of the socket 51, the limiting plate 41 cannot be fully unfolded. Then continue to push the first handle 47 forward, the small cylinder body 451 of the sleeve 45 is inserted into the positioning hole 53, and then continue to push the first handle 47 forward. Stop when the rear end of the limiting plate 41 moves flush with the positioning opening 52. The clearance space of the positioning opening 52 allows the limiting plates 41 on both left and right sides to be unfolded. Therefore, the limiting plate 41 is unfolded under the action of the first elastic member 42 to extend into the positioning opening 52. After stopping pushing the first handle 47, since the second elastic member 44 is not subjected to a forward thrust, the second elastic member 44 extends. The extended second elastic member 44 will push the mounting seat 43 backward, causing the limiting plate 41 to move backward with the mounting seat 43. Finally, the limiting plates 41 on both left and right sides are respectively clamped on the rear edges of the positioning openings 52 on both left and right sides, thereby fixing the connecting seat 3 and the upper connecting column 11. Assembly can be completed simply by insertion, and the assembly speed is fast.

[0044] As Figure 11 and Figure 12 shown, when the side bucket 1 needs to be disassembled for maintenance, first push the first handle 47 in the direction of the connecting seat 3 to drive the limiting plate 41 to move, so that the limiting plate 41 has a moving space at the positioning opening 52. Then pull the second handle 46 to make the sleeve 45 squeeze the limiting plate 41 to rotate towards the center of the lower connecting column 33, so that the limiting plate 41 is pushed out of the positioning opening 52. Finally, pull the second handle 46 and the first handle 47 synchronously to take out the locking device 4 and complete the disassembly. Disassembly can be completed simply by pushing and pulling, and the disassembly is convenient and fast.

[0045] The above is only the embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is similarly within the patent protection scope of the present invention.

Claims

1. An assembly structure of a sidecar and a sidecar frame, used for assembling the sidecar on the sidecar frame, characterized in that: It comprises a connecting seat arranged on the sidecar frame, an upper connecting column arranged at the lower end of the sidecar, and a locking device for locking the upper connecting column and the connecting seat, wherein a first mounting cavity penetrating upward is arranged in the connecting seat; the upper connecting column has a second mounting cavity penetrating downward; the rear side walls of the connecting seat and the upper connecting column are coaxially provided with sockets, and the left and right side walls of the connecting seat and the upper connecting column are provided with positioning openings; The locking device includes a mounting seat that can be inserted into the second mounting cavity from the socket, two limit plates arranged on the left and right sides of the mounting seat, a first handle connected to the mounting seat and limited by the socket to the outside of the rear side of the connecting seat, and a first elastic member; the two limit plates can be opened outward or retracted inward relative to the corresponding side walls of the mounting seat, the first elastic member is connected between the two limit plates, and when the first elastic member is extended, it can push the two limit plates to open outward to enter the two positioning openings on the left and right side walls respectively; when the two limit plates are applied with forces in relative directions, the two limit plates retract inward to exit the two positioning openings and compress the first elastic member.

2. The assembly structure of the sidecar and the sidecar frame according to claim 1, characterized in that: The locking device also includes a sleeve, a second elastic member and a second handle located at the front side of the mounting seat; The second elastic member is disposed in the sleeve, the front end of the second elastic member is connected to the front side wall of the sleeve, and the rear end is connected to the front end of the mounting seat; the front end of the second handle passes through the mounting seat and is connected to the sleeve, and the rear end of the second handle is limited by the first handle to be located outside the rear side of the connecting seat; The inner diameter of the sleeve is larger than the total distance between the two limit plates when they are retracted. When the second handle applies a backward pulling force to the sleeve, the sleeve slides backward and its inner wall applies force backward and inward to the two limit plates so that the two limit plates are passively retracted in the sleeve, thereby making the two limit plates withdraw from the two positioning openings; when the first handle applies a backward force to the mounting seat when the two limit plates are retracted in the sleeve, the locking device quickly withdraws from the outside of the connecting seat.

3. The assembly structure of the sidecar and the sidecar frame as claimed in claim 2, characterized in that: The front side walls of the connecting seat and the upper connecting column are coaxially provided with positioning holes, and the positioning holes penetrate the corresponding front side walls along the wall thickness direction; The sleeve comprises a small cylinder whose outer diameter matches the inner diameter of the positioning hole and a large cylinder located at the rear end of the small cylinder and whose outer diameter is larger than that of the positioning hole. The small cylinder can be inserted forward into the positioning hole, and the front end surface of the large cylinder can abut against the front inner wall of the upper connecting column or the connecting seat. The second elastic member is arranged in the large cylinder, and the inner diameter of the large cylinder is larger than the total distance between the two limit plates when they are folded.

4. The assembly structure of the sidecar and the sidecar frame as claimed in claim 2, characterized in that: The first handle is a hollow rectangular frame, and the front side wall of the rectangular frame is connected to the rear end surface of the mounting seat.

5. The assembly structure of the sidecar and the sidecar frame as claimed in claim 4, characterized in that: The second handle includes a pull rod and a handle. The front end of the pull rod freely passes through the front side wall of the rectangular frame, the mounting seat, and the second elastic member and is fixedly connected to the front side wall of the small cylinder. The handle is located in the rectangular frame and is screwed to the rear end of the pull rod.

6. The assembly structure of the sidecar and the sidecar frame as claimed in claim 2, characterized in that: The mounting seat includes a frame for guiding and a mounting rod for mounting a limit plate, the second handle is mounted on the frame, the mounting rod is fixed on the frame, and the width of the mounting rod is smaller than the width inside the sleeve.

7. The assembly structure of the sidecar and the sidecar frame as claimed in claim 2, characterized in that: The projection of the limit plate in the horizontal direction has a narrow tip at the front end and a wide end at the rear end. The tip is pivotally connected to the mounting rod. When the limit plate is unfolded, the outer side surface of the limit plate is an inclined surface inclined outward. When the rear end surface of the limit plate is unfolded, it fits with the rear edge of the positioning opening.

8. The assembly structure of the sidecar and the sidecar frame as claimed in claim 2, characterized in that: The first elastic member is a spring sheet, both ends of which are embedded in the limiting plate, and the first elastic member is in an M shape.

9. The assembly structure of the sidecar and the sidecar frame as claimed in claim 1, characterized in that: The connecting seat includes a lower seat body and an upper seat body for fixing on the frame and a lower connecting column provided with a first mounting cavity. The upper seat body is connected to the lower seat body to be clamped and fixed on the frame. The lower connecting column is fixed on the upper seat body. The upper connecting column is inserted into the first mounting cavity of the lower connecting column.

10. The assembly structure of the sidecar and the sidecar frame as claimed in claim 9, characterized in that: The upper seat body and the lower seat body are combined to form a T-shaped installation cavity, and the side frame is located in the T-shaped installation cavity.

Images