Damping sidecar frame

Abstract

The invention discloses a damping sidecar frame. The damping sidecar frame comprises a sidecar body used for being connected with a main car body and a damping mechanism arranged on the sidecar body and connected with a sidecar hopper. The damping mechanism comprises a connecting base used for being installed on a side frame body, a lower connecting column installed on the connecting base, an upper connecting column connected with the lower connecting column in a sliding mode, a damping spring arranged between the lower connecting column and the upper connecting column and a limiting assembly used for conducting upper limiting on the upper connecting column. The limiting assembly is used for preventing the upper connecting column from being upwards separated from the lower connecting column. The shock-absorbing sidecar frame can absorb shock, so that the comfort of a sidecar is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sidecar tricycles, in particular to a shock-absorbing sidecar frame. Background Art

[0002] A sidecar motorcycle is also called a sidecar motorcycle, which consists of a main body, a sidecar frame connected to the main body, and a sidecar mounted on the sidecar frame. In order to ensure the shock absorption effect of the sidecar, a shock absorber is usually installed between the sidecar frame and the wheel mounted on the sidecar frame to reduce the vibration of the sidecar frame. However, the vibration generated by the side of the main body is directly transmitted to the sidecar frame, and the sidecar frame will drive the sidecar to vibrate, resulting in poor shock absorption effect of the sidecar and poor passenger experience. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a shock-absorbing sidecar frame capable of reducing shocks of the sidecar.

[0004] In order to solve the above-mentioned problems, the present invention provides a shock-absorbing side frame, which includes a side frame body for connecting to a main vehicle body and a shock-absorbing mechanism arranged on the side frame body and connected to a side bucket; the shock-absorbing mechanism includes a connecting seat for installation on the side frame body, a lower connecting column installed on the connecting seat, an upper connecting column slidably connected to the lower connecting column, a shock-absorbing spring arranged between the lower connecting column and the upper connecting column, and a limit assembly for upper positioning the upper connecting column, wherein the limit assembly is used to prevent the upper connecting column from upwardly separating from the lower connecting column.

[0005] Furthermore, the lower connecting column has a lower accommodating cavity that penetrates upward, and the shock absorbing spring is placed in the lower accommodating cavity; the upper connecting column is slidably arranged in the lower accommodating cavity, and the upper connecting column has an upper accommodating cavity that penetrates downward;

[0006] The limiting assembly comprises a locking tongue rotatably arranged at the lower end of the upper accommodating cavity, a limiting plate connected to the upper end of the damping spring, and a limiting sleeve screwed to the upper end of the lower connecting column; a sliding groove is arranged on the lower connecting column; the locking tongue has a rotating connecting end transferred to the upper accommodating cavity and a movable end away from the rotating connecting end, and in an initial state, the movable end deviates downward and radially from the transfer point so that the locking tongue is tilted downward and outward;

[0007] When the upper connecting column moves downward, the locking tongue is driven to move downward, and the movable end of the locking tongue slides with the limiting plate and flips upward to be horizontal, the lower surface of the horizontal locking tongue contacts the limiting plate, and the movable end of the locking tongue passes horizontally through the sliding groove; the limiting sleeve is screwed downward until the upper surface of the locking tongue contacts to lock the locking tongue in a horizontal state, thereby limiting the upper connecting column.

[0008] Furthermore, an extension plate capable of horizontally passing through the sliding groove is provided on the limiting plate member, and the movable end of the lock tongue can fully support on the extension plate.

[0009] Furthermore, the limiting plate member includes a bottom plate with a larger diameter and a support plate coaxially arranged on the upper surface of the bottom plate. The radial dimension of the upper surface of the bottom plate around the outer circumference of the support plate is adapted to the side wall thickness of the upper connecting column for limiting the upper connecting column in the radial direction; the extension plate extends horizontally outward from the edge of the support plate.

[0010] Furthermore, the lock tongue is configured to be two, the rotation axes of the two lock tongues are collinear, and the movable ends of the two lock tongues are inclined downward and away from each other; in the horizontal projection plane, with the rotation axis as the symmetry axis, the movable ends of the two lock tongues are symmetrically distributed on both sides of the rotation axis; the sliding groove is configured to be two sliding grooves corresponding to the two lock tongues one by one.

[0011] Furthermore, a rotating shaft is provided at the lower end of the upper accommodation cavity, and the cavity wall of the upper accommodation cavity is connected and passes through the center of the upper accommodation cavity; the rotating connection end of the lock tongue is rotatably connected to the rotating shaft.

[0012] Furthermore, an installation shaft hole for installing the rotating shaft is provided on the upper connecting column, the installation shaft hole is radially arranged on the upper connecting column, and a guiding inclined surface for guiding the insertion of the rotating shaft is provided at the connection between the installation shaft hole and the outer wall of the upper connecting column.

[0013] Furthermore, an avoidance groove for avoiding the lock tongue is provided on the upper connecting column.

[0014] Furthermore, the sliding groove is arranged along the axial direction of the lower connecting column, and the sliding groove is formed by recessing downward from the top surface of the lower connecting column.

[0015] Furthermore, the connecting seat includes a lower seat body and an upper seat body, and the upper seat body and the lower seat body are connected by bolts so that the upper seat body and the lower seat body are clamped and fixed on the side frame body.

[0016] A shock-absorbing side frame of the present invention has a shock-absorbing mechanism. A shock-absorbing spring is arranged between the upper connecting column and the lower connecting column of the shock-absorbing mechanism, so as to form a buffer between the side bucket and the side frame. Even if the side frame is affected by the main vehicle body, shock absorption can be achieved, improving the shock-absorbing effect of the side bucket and enhancing the experience; at the same time, the upper connecting column and the lower connecting column are connected by a limiting component to ensure that the upper connecting column will not fall off the lower connecting column during the shock-absorbing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of a shock-absorbing side frame of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the side bucket installed on the shock-absorbing side frame of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the shock-absorbing mechanism.

[0020] Figure 4 It is a cross-sectional view of the shock-absorbing mechanism along the axial direction of the reinforcing rod.

[0021] Figure 5 It is a cross-sectional view of the shock-absorbing mechanism along the axial direction of the rotating shaft.

[0022] Figure 6 It is a schematic structural diagram of the lower connecting column.

[0023] Figure 7 It is a schematic structural diagram of the upper connecting column.

[0024] Figure 8 It is a schematic structural diagram of the rotating shaft and the locking tongue.

[0025] Figure 9 It is a schematic structural diagram of the limiting plate member.

[0026] Figure 10 It is a schematic diagram of the rotation process of the locking tongue during assembly.

[0027] The meanings of the reference numerals in the drawings are as follows:

[0028] Side frame body 1, annular frame 11, reinforcing rod 12, shock-absorbing mechanism A, connecting seat 2, lower seat body 22, upper seat body 21, T-shaped installation cavity 23, upper connecting column 3, upper accommodation cavity 31, avoidance groove 32, installation shaft hole 33, guiding inclined surface 331, rotating shaft 34, lower connecting column 4, lower accommodation cavity 41, sliding groove 42, shock-absorbing spring 5, limiting plate member 6, bottom plate 61, supporting plate 62, extension plate 63, locking tongue 7, limiting sleeve 8, side bucket 9. Detailed implementation manners

[0029] The present invention will be further described below with reference to the drawings.

[0030] As Figure 1 and Figure 2 shown, a preferred implementation manner of a shock-absorbing side frame of the present invention includes a side frame body 1 for connecting with the main vehicle body and a shock-absorbing mechanism A installed on the side frame body 1, and the shock-absorbing mechanism A is used for connecting with the side bucket 9.

[0031] The side frame body 1 includes an annular frame 11 and a reinforcing rod 12. The reinforcing rod 12 is installed inside the annular frame 11, and the reinforcing rod 12 is used to strengthen the strength of the annular frame 11. The shock-absorbing mechanism A is installed at the connection of the annular frame 11 and the reinforcing rod 12.

[0032] like Figures 3 to 5 As shown, the shock absorbing mechanism A includes a connecting seat 2, an upper connecting column 3, a lower connecting column 4, a shock absorbing spring 5 and a limit assembly. The connecting seat 2 is used to be installed on the side frame body 1, and the lower connecting column 4 is installed on the connecting seat 2. The upper connecting column 3 is used to connect with the side bucket 9, and is usually fixed to the side bucket 9 by welding. The upper connecting column 3 is inserted into the lower connecting column 4, and the shock absorbing spring 5 is arranged between the lower connecting column 4 and the upper connecting column 3. The limit assembly is used to prevent the upper connecting column 3 from detaching upward from the lower connecting column 4, so as to achieve the upper limit of the upper connecting column 4.

[0033] The limiting assembly includes a locking tongue 7, a limiting plate 6 and a limiting sleeve 8. The locking tongue 7 has a movable end and a connecting end. The connecting end of the locking tongue 7 is connected to the upper connecting column 3 through a rotating shaft 34. The locking tongue 7 can rotate on the upper connecting column 3. The locking tongue 7 is used to prevent the upper connecting column 3 from being separated from the lower connecting column 4. The lower connecting column 4 is provided with a sliding groove 42. The limiting sleeve 8 is screwed on the lower connecting column 4. The limiting sleeve 8 is used to cooperate with the limiting plate 6 to lock the locking tongue 7. Figure 8 As shown, in the initial state, the movable end of the lock tongue 7 is downward and deviates from the transfer point along the radial direction of the rotating shaft 34, so that the lock tongue 7 is tilted downward and outward; when the upper connecting column 3 moves downward, the lock tongue 7 is driven to move downward, and the movable end of the lock tongue 7 slides with the limit plate 6 and turns upward to be horizontal, the lower surface of the horizontal lock tongue 7 contacts the limit plate 6, and the movable end of the lock tongue 7 passes through the sliding groove 42 horizontally; the limit sleeve 8 is screwed downward until the upper surface of the lock tongue 7 contacts to lock the lock tongue 7 in a horizontal state, so that the upper connecting column 3 is limited. The movable end of the lock tongue 7 is provided with an arc chamfer near the limit plate 6 to facilitate the rotation of the lock tongue 7. The limit plate 6 is arranged at the upper end of the damping spring 5, and the limit plate 6 is used to prevent the damping spring 5 from being squeezed and deformed by the lock tongue 7, and is also used to limit the lock tongue 7 to prevent the lock tongue 7 from rotating too far. When it is necessary to lock the lock tongue 7, it should be known that the lock tongue 7 has been inserted into the sliding groove 42 at this time, and the limiting sleeve 8 is rotated to make the limiting sleeve 8 move downward along the lower connecting column 4 to contact the lock tongue 7, thereby ensuring that the lock tongue 7 cannot be turned over, and further ensuring that the upper connecting column 3 cannot be detached from the lower connecting column 4; when it is necessary to unlock the lock tongue 7, the limiting sleeve 8 is rotated to make the limiting sleeve 8 move upward along the lower connecting column 4 and contact with the lower connecting column 4, so that when the upper connecting column 3 moves upward, the lock tongue 7 can be rotated downward, and when the lock tongue 7 moves to a certain height, the movable end of the lock tongue 7 can be rotated into the lower connecting column 4, so that the upper connecting column 3 can be separated from the lower connecting column 4, and the disassembly is completed.

[0034] The connecting seat 2 includes a lower seat body 22 and an upper seat body 21. The upper seat body 21 and the lower seat body 22 are connected by bolts, so that the upper seat body 21 and the lower seat body 22 are clamped and fixed on the side frame body 1. The upper seat body 21 and the lower seat body 22 enclose a T-shaped installation cavity 23. The connection part of the rectangular frame and the reinforcing rod 12 is located in the T-shaped installation cavity 23, so as to ensure that the connecting seat 2 will not shake. Specifically, an upper T-shaped groove is provided on the upper seat body 21, and a lower T-shaped groove is provided on the lower seat body 22. The upper T-shaped groove and the lower T-shaped groove are combined.

[0035] As Figure 6 shown, the lower connecting column 4 has a downwardly penetrating lower accommodation cavity 41. The lower connecting column 4 is welded and fixed on the upper seat body 21, thereby closing the lower end of the lower connecting column 4. The shock-absorbing spring 5 is placed in the lower accommodation cavity 41 and contacts the upper seat body 21. The upper connecting column 3 is inserted into the lower accommodation cavity 41 of the lower connecting column 4. The sliding groove 42 is slidably arranged on the upper connecting column 3. The sliding groove 42 is arranged along the axial direction of the lower connecting column 4. There are two sliding grooves 42, which are symmetrically arranged on the lower connecting column 4. The sliding groove 42 is formed by a depression from the top surface of the lower connecting column 4, ensuring that the limiting plate member 6 can be placed on the shock-absorbing spring 5. The lower connecting column 4 is provided with an external thread, and the limiting sleeve 8 is provided with an internal thread. The limiting sleeve 8 is screwed on the outer wall of the lower connecting column 4.

[0036] As Figure 7 and Figure 8 shown, the upper connecting column 3 has an upper accommodation cavity 31. The upper connecting column 3 is provided with an avoidance groove 32 and a mounting shaft hole 33. The mounting shaft hole 33 is radially arranged on the upper connecting column 3. The rotating shaft 34 is inserted into the mounting shaft hole 33. The connecting end of the locking tongue 7 is mounted on the rotating shaft 34, so that the locking tongue 7 is rotatably arranged on the upper connecting column 3. The connecting end of the locking tongue 7 is located in the upper accommodation cavity 31. Usually, there are two locking tongues 7, and the two locking tongues 7 are arranged on the same rotating shaft 34. Of course, in other embodiments, only one locking tongue 7 can also be provided. The avoidance groove 32 communicates with the upper accommodation cavity 31. The avoidance groove 32 is used to avoid the locking tongue 7, ensuring that the locking tongue 7 can rotate freely. A guiding inclined surface 331 is provided at the connection part of the mounting shaft hole 33 and the upper connecting column 3, which is convenient for inserting the mounting shaft hole 33 into the mounting shaft hole 33 and improving the assembly efficiency. Chamfers are provided at both ends of the rotating shaft 34, which is convenient for inserting the rotating shaft 34 into the mounting shaft hole 33 and the locking tongue 7, further improving the assembly efficiency. In another embodiment, the locking tongue 7 can also be located on the outer wall of the upper connecting column 3, that is, a connecting plate is provided on the outer wall of the upper connecting column 3, and the rotating shaft 34 is rotatably arranged on the connecting plate.

[0037] As Figure 9As shown, the limit plate 6 is provided with an extension plate 63 that can pass through the sliding groove 32 horizontally, and the movable end of the lock tongue 7 can be fully supported on the extension plate 63, ensuring that when the lock tongue 7 is reset under the action of the damping spring 5, the upper and lower sides of the lock tongue 7 collide with the limit sleeve 8 and the extension plate 63 respectively on the same vertical line, and the lock tongue 7 will not be easily bent, thereby extending the service life of the lock tongue 7. The limit plate 6 is in the shape of a plate, and the limit plate 6 includes a base plate 61 with a larger diameter and a support plate 62 coaxially arranged on the upper surface of the base plate 61. The diameter of the base plate 61 is the same as the diameter of the damping spring 5, ensuring that the base plate 61 can cover the damping spring 5. The radial dimension of the upper surface of the base plate 61 around the outer circumference of the support plate 62 is adapted to the side wall thickness of the upper connecting column 3 to limit the upper connecting column 3 in the radial direction, and the support plate 62 is used to limit the rotation of the lock tongue 7. The extension plate 63 is horizontally extended outward from the edge of the support plate 62, so that the extension plate 63 can extend out of the lower connecting column 4 from the sliding groove 42. When the limiting sleeve 8 is loosened so that there is a gap with the lock tongue 7, the upper connecting column 3 moves upward, and the movement of the upper connecting column 3 drives the lock tongue 7 to move upward, and the movable end of the lock tongue 7 will flip downward, and the lock tongue 7 will apply a vertical downward force to the extension plate 63, and the extension plate 63 transmits the force to the shock absorbing spring 5. The force applied by the extension plate 63 to the shock absorbing spring 5 is also vertically downward, which can prevent the two lock tongues 7 from clamping the shock absorbing spring 5 toward the center of the shock absorbing spring 5 when the lock tongue 7 is in direct contact with the shock absorbing spring 5, thereby preventing the shock absorbing spring 5 from being deformed and extending the service life of the shock absorbing spring 5; in other embodiments, when there is no extension plate 63, the lock tongue 7 will transmit the force to the support plate 62.

[0038] During installation, first fix the upper seat body 21 and the lower seat body 22 on the side frame body 1, then put the damping spring 5 and the limit plate 6 into the lower connecting column 4 in sequence, and the limit sleeve 8 is screwed on the lower connecting column 4. Install the upper connecting column 3 to the side bucket 9, install the lock tongue 7 to the upper connecting column 3, that is, insert the rotating shaft 34 into the installation shaft hole 33 of the upper connecting column 3 and insert it on the lock tongue 7 at the same time, and after installing the lock tongue 7 on the upper connecting column 3, insert the upper connecting column 3 into the lower connecting column 4; Figure 10 As shown, during the insertion process, the movable end of the lock tongue 7 will first contact the limiting plate 6, and the lock tongue 7 will continue to move and be pushed to rotate the movable end along the limiting plate to move toward the sliding groove 42, so that the lock tongue 7 is finally inserted into the sliding groove 42 along the limiting plate and the extension plate 63, and the lock tongue 7 is finally horizontal in the sliding groove 42, and finally the limiting sleeve 8 is rotated to make the limiting sleeve 8 contact the lock tongue 7, ensuring that the lock tongue 7 will not flip up and down to escape from the sliding groove 42, so as to complete the connection between the upper connecting column 3 and the lower connecting column 4. For assembly, you only need to insert the upper connecting column 3 into the lower connecting column 4, and then rotate the limiting sleeve 8, which is convenient for assembly.

[0039] During use, even if the side frame is subjected to vibrations from the main vehicle body or the ground, due to the action of the shock-absorbing spring 5, when the lower connecting column 4 moves upward, it is shock-absorbed by the shock-absorbing spring 5, which can reduce vibrations and thus improve the comfort of the side car 9.

[0040] When it is necessary to disassemble the side car 9 and the side frame body 1 for maintenance, rotate the limit sleeve 8 so that the limit sleeve 8 cannot restrict the locking tongue 7. At this time, moving the upper connecting column 3 upward can complete the disassembly; during the upward movement of the upper connecting column 3, the movable end of the locking tongue 7 will rotate downward. When the locking tongue 7 follows the upward movement of the upper connecting column 3 to a certain height, the movable end of the locking tongue 7 can break away from the restriction of the limit plate member 6 and then disengage from the sliding groove 42 and rotate into the upper connecting column 3, completing the unlocking of the upper connecting column 3 and the lower connecting column 4. Continuing to move upward can completely separate the upper connecting column 3 from the lower connecting column 4 to complete the disassembly. During disassembly, simply loosen the limit sleeve 8 and then pull the upper connecting column 3 to complete the disassembly, which is convenient for disassembly.

[0041] The above is only the implementation mode of the present invention, and does not limit the patent scope of the present invention accordingly. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is equally within the patent protection scope of the present invention.

Claims

1. A shock-absorbing side frame, characterized in that: It includes a side frame body for connecting with the main vehicle body and a shock absorption mechanism arranged on the side frame body and connected with the side bucket; the shock absorption mechanism includes a connecting seat for installing on the side frame body, a lower connecting column installed on the connecting seat, an upper connecting column slidably connected with the lower connecting column, a shock absorption spring arranged between the lower connecting column and the upper connecting column, and a limiting component for performing upper limit on the upper connecting column, and the limiting component is used to prevent the upper connecting column from disengaging from the lower connecting column upward.

2. The shock-absorbing side frame according to claim 1, characterized in that: The lower connecting column has a downwardly penetrating lower accommodation cavity, and the shock absorption spring is placed in the lower accommodation cavity; the upper connecting column is slidably arranged in the lower accommodation cavity, and the upper connecting column has an upwardly penetrating upper accommodation cavity; The limiting component includes a locking tongue rotatably arranged at the lower end of the upper accommodation cavity, a limiting plate member connected with the upper end of the shock absorption spring, and a limiting sleeve screwed on the upper end of the lower connecting column; a sliding groove is arranged on the lower connecting column; the locking tongue has a rotating connection end transferred in the upper accommodation cavity and a movable end in the direction away from the rotating connection end, and in the initial state, the movable end is downward and radially deviates from the transfer point so that the locking tongue is inclined downward and outward. When the upper connecting column moves downward, it drives the locking tongue to move downward, the movable end of the locking tongue slides and cooperates with the limiting plate member and turns upward to be horizontal, the lower surface of the horizontal locking tongue contacts the limiting plate member, and the movable end of the locking tongue horizontally passes through the sliding groove; the limiting sleeve is screwed downward until the upper surface of the locking tongue contacts to lock the locking tongue in the horizontal state, so that the upper connecting column is limited.

3. The shock-absorbing side frame according to claim 2, characterized in that: The limiting plate member is provided with an extension plate capable of horizontally penetrating out of the sliding groove laterally, and the movable end of the locking tongue can fully support on the extension plate.

4. The shock-absorbing side frame according to claim 3, wherein: The limiting plate member includes a bottom plate with a larger diameter and a support plate coaxially arranged on the upper surface of the bottom plate, and the radial dimension of the upper surface of the bottom plate around the periphery of the support plate is adapted to the side wall thickness of the upper connecting column for limiting the upper connecting column in the radial direction; the extension plate extends horizontally outward from the edge of the support plate.

5. The shock-absorbing side frame according to claim 2, wherein: The locking tongue is configured to be two, the rotation axes of the two locking tongues are collinear, and the movable ends of the two locking tongues are inclined downward and away from each other; in the horizontal projection plane, with the rotation axis as the symmetry axis, the movable ends of the two locking tongues are symmetrically distributed on both sides of the rotation axis; the sliding groove is configured to be two sliding grooves corresponding to the two locking tongues one by one.

6. The shock-absorbing side frame according to claim 3, characterized in that: A rotating shaft is arranged at the lower end of the upper accommodation cavity, and the cavity wall of the upper accommodation cavity is connected and passes through the center of the upper accommodation cavity; the rotating connection end of the locking tongue is transferred on the rotating shaft.

7. The shock-absorbing side frame according to claim 6, wherein: The upper connecting column is provided with a mounting shaft hole for mounting the rotating shaft, the mounting shaft hole is radially arranged on the upper connecting column, and a guiding inclined surface for guiding the insertion of the rotating shaft is arranged at the connection between the mounting shaft hole and the outer wall of the upper connecting column.

8. The shock-absorbing side frame according to claim 3, wherein: The upper connecting column is provided with an avoidance groove for avoiding the locking tongue.

9. The shock-absorbing side frame according to claim 2, wherein: The sliding groove is arranged along the axial direction of the lower connecting column, and the sliding groove is formed by recessing downward from the top surface of the lower connecting column.

10. The shock-absorbing side frame according to claim 1, characterized in that: The connecting seat includes a lower seat body and an upper seat body. The upper seat body and the lower seat body are connected by bolts, so that the upper seat body and the lower seat body are clamped and fixed on the side frame body.

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