Folding shock absorber with safety lock and folding scooter

Abstract

The application discloses a folding shock absorber with a safety lock device and a folding scooter, which comprises a fixing seat and a shock absorber body, one end of the shock absorber body is inserted into the fixing seat, a lock piece is arranged on one side of the outer part of the fixing seat, the shock absorber body inserted into the fixing seat is pressed and limited by the lock piece through a pressing assembly, and a lock pin is inserted from the outside of the fixing seat and used for limiting the movement of the lock piece in the vertical direction relative to the fixing seat. The whole volume of the application is small, the length of the whole shock absorber can be shortened by using the fixing seat, the use of the shock absorber can realize the quick folding of the scooter, the safety lock structure is arranged, the safety can be effectively ensured, the size of the vehicle after folding can be made smaller, the transportation is more convenient, the packaging is reduced, and the cost is saved.

Description

Technical Field

[0001] This invention relates to the field of vehicle shock absorption, specifically to a folding shock absorber with a safety lock device and a folding scooter. Background Technology

[0002] Portable vehicles such as folding scooters are usually equipped with shock absorbers to improve user comfort. However, the frame cannot be folded at the location where the shock absorber is installed. This means that the vehicle can only be folded in other places, which means that the overall size of the vehicle after folding cannot be very small. As a result, the shipping packaging remains unchanged, and the shock absorber is fixed at the top. If you want to fold the vehicle, the traditional method is to remove the shock absorber, which is very inconvenient.

[0003] Moreover, traditional shock absorbers have connectors at both ends for easy connection. These connectors are used to connect the vehicle frame to the vehicle body and are locked in place. This results in the shock absorber being very long and large, which also affects the overall size of the scooter.

[0004] In addition, traditional shock absorbers have a relatively simple structure, and the relative movement between the spring and the shaft generates noise, causes significant shaking, and is not stable enough in use. Summary of the Invention

[0005] The technical problem to be solved by the present invention is a folding shock absorber with a safety lock device and a folding scooter. When applied to a scooter, the shock absorber can be quickly separated when the scooter is folded, so that the vehicle can be folded quickly. The present invention utilizes the structure of the fixed seat, so that the shock absorber can retract into the fixed seat to make a yielding action when it is compressed, shortening the overall length of the shock absorber without affecting the installation on both sides of the shock absorber.

[0006] The present invention is achieved through the following technical solution: a folding shock absorber with a safety lock device, comprising a fixed base and a shock absorber body, one end of the shock absorber body being inserted into the fixed base, a locking plate being provided on the outer side of the fixed base, the locking plate pressing and limiting the shock absorber body inserted into the fixed base by a pressing assembly, and a locking pin being inserted from the outside of the fixed base to limit the movement of the locking plate relative to the fixed base in the vertical direction.

[0007] As a preferred technical solution, the shock absorber body includes a shaft with threads at both ends. A connector is threaded onto one end of the shaft, and the other end of the shaft is inserted into a connecting block and locked with a nut. A limit slot is provided on the connecting block, and a locking plate is inserted into the limit slot from top to bottom to restrict the movement of the connecting block relative to the fixed seat in the length direction. One end of the connecting block is inserted into the fixed seat.

[0008] As a preferred technical solution, a self-lubricating bushing is provided on the outer side of the connecting block relative to the shaft. The self-lubricating bushing:

[0009] A shaft hole is opened in the middle for the shaft to pass through. The self-lubricating bushing is divided into two parts: an end panel and an extension. One end of the extension is inserted into the connecting block, and the end panel is in contact with and limited by the outer end face of the connecting block.

[0010] A first positioning protrusion is formed on the side of the end panel away from the extension. A second positioning protrusion is formed on the connector head at one end of the shaft relative to the first positioning protrusion. A shock-absorbing spring is fitted on the shaft located between the first positioning protrusion and the second positioning protrusion. The two ends of the shock-absorbing spring are respectively positioned and assembled with the first positioning protrusion and the second positioning protrusion.

[0011] As a preferred technical solution, an elastic rubber sleeve is fitted on the shaft located on the inner end of the shock-absorbing spring, and the length of the elastic rubber sleeve is less than the distance between the end face of the connector and the end face of the end panel.

[0012] As a preferred technical solution, the locking piece includes:

[0013] The device includes an operating gripping part, an installation guide part, and a limiting part. The bottom of the limiting part has a limiting surface that is shaped like a limiting slot. The limiting surface is snapped into the limiting slot. The mounting base has an installation position corresponding to the position of the installation guide part. The installation guide part is installed in the installation position and can move up and down in the installation position. The clamping components are set on both sides of the limiting part.

[0014] As a preferred technical solution, the clamping assembly includes support sliders fixedly disposed on both sides of the limiting part, and a clamping spring is positioned and installed on each support slider. The bottom of the clamping spring is positioned and supported by the support slider, and the top of the clamping spring is positioned and supported by the lower end face of the mounting guide.

[0015] As a preferred technical solution, a guide groove is provided in the fixed seat corresponding to the support slider, and the support slider is slidably disposed in the guide groove.

[0016] As a preferred technical solution, the locking pin is inserted from the outside of the fixed base into the fixed base. A pin cap is provided on the outside of the locking pin, and the inner insertion end is inserted into the fixed base and positioned onto the locking piece. The head of the insertion end of the locking pin is provided with an external thread, and a threaded hole is provided at the position corresponding to the locking piece. In this embodiment, the threaded hole is provided on the installation guide part of the locking piece. Of course, a concave-convex snap-fit ​​structure can also be used between the locking pin and the locking piece. This is not specifically limited here, and the position of the threaded hole can also be provided at other positions on the locking piece.

[0017] As a preferred technical solution, a limit ring is provided on the outer side of the connecting block opposite the fixed seat, and a shock-absorbing rubber ring is provided on the side of the limit ring opposite the fixed seat, with the other side of the shock-absorbing rubber ring in contact with the end face of the fixed seat.

[0018] The present invention provides a folding scooter, which is equipped with a folding shock absorber. The scooter includes a frame and a body, which are rotatably connected. One end of the folding shock absorber is connected to the frame, and the other end is connected to the body.

[0019] The beneficial effects of the present invention are as follows: First, the present invention installs a fixed seat on one side of the shock absorber and connects to the scooter by connecting one end of the fixed seat. This eliminates one of the connectors of the shock absorber. When the shock absorber is compressed, the shaft of the shock absorber can move toward the internal space of the fixed seat. This can make reasonable use of the structure, meet the installation conditions, and shorten the length of the shock absorber, so that the vehicle can be made smaller.

[0020] Second, because the present invention has a quick-release structure between the shock absorber and the fixed seat, when the vehicle needs to be folded, the shock absorber and the fixed seat can be separated by quickly pulling out the locking plate, so that the vehicle can be folded even after the shock absorber is installed. Moreover, the size of the vehicle after folding can be made smaller, making it more convenient to transport, reducing packaging and saving costs.

[0021] Third, the quick-release structure between the shock absorber and the fixed base of the present invention is also provided with a safety lock structure, that is, a locking pin is used to complete the safety locking, prevent separation, and further improve safety.

[0022] Fourth, the present invention is equipped with an elastic rubber sleeve and a shock-absorbing rubber ring, which reduces the collision between the spring and the shaft when the shock absorber is used, effectively reducing noise, making it more stable to use, with better shock absorption and less shaking. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the shock absorber of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of the back structure of the intermediate shock absorber;

[0026] Figure 3 This is a schematic diagram of the structure of the present invention after the fixing base is removed;

[0027] Figure 4 For the present invention Figure 3 A structural diagram from another perspective;

[0028] Figure 5 This is a schematic diagram of the structure of the fixing base of the present invention after the locking plate is removed;

[0029] Figure 6 This is a schematic diagram of the structure of the shaft, connector, and self-lubricating bushing of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the locking plate and locking pin of the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the present invention;

[0032] Figure 9 This is a schematic diagram of the shock absorber of the present invention installed on a scooter;

[0033] Figure 10 for Figure 9 A magnified view of a section at point A in the middle;

[0034] Figure 11 This is a schematic diagram of the folded structure of the present invention. Detailed Implementation

[0035] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0036] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0037] like Figure 1 As shown, a folding shock absorber with a safety lock device according to the present invention includes a fixed base 5 and a shock absorber body 100. One end of the shock absorber body 100 is inserted into the fixed base 5. A locking plate is provided on the outer side of the fixed base 5. The locking plate presses and limits the shock absorber body 100 inserted into the fixed base through a pressing assembly. A locking pin 9 is inserted into the fixed base 5 from the outside to limit the movement of the locking plate relative to the fixed base 5 in the vertical direction.

[0038] The shock absorber body includes a shaft 15 with threads at both ends. A connector 2 is threaded onto one end of the shaft 15, and the other end of the shaft 15 is inserted into a connecting block 4 and locked with a nut 151. Figure 2 and Figure 6As shown, the nut 151 and one end of the shaft 15 extend into the relief cavity 10 of the fixed seat 5. Therefore, the shaft 15 at this end does not need to be equipped with a connector. When subjected to compression and vibration, the nut and the shaft both make a relief action within the relief space. This allows the shock absorber to be made shorter after reducing one connector, while the fixed seat can be used to complete the connection and installation with the vehicle.

[0039] like Figure 3 and Figure 4 As shown, the connecting block 4 is provided with a limiting slot 16. The locking piece is inserted into the limiting slot 16 from top to bottom to restrict the movement of the connecting block relative to the fixed seat 5 in the length direction. One end of the connecting block 4 is inserted into the fixed seat 5. At this time, the connecting block 4 cannot be pulled out relative to the fixed seat 5. Therefore, if it is necessary to separate the connecting block 4 from the fixed seat 5, it is only necessary to pull out the locking piece in the opposite direction to achieve separation.

[0040] like Figure 6 As shown, a self-lubricating bushing 6 is provided on the outer side of the connecting block 4 relative to the shaft 15. A shaft hole for the shaft to pass through is opened in the middle of the self-lubricating bushing 6. The self-lubricating bushing 6 is divided into two parts: an end panel and an extension. One end of the extension is inserted into the connecting block 4, and the end panel is in contact with and limited by the outer end face of the connecting block 4.

[0041] A first positioning protrusion 61 is formed on the side of the end panel away from the extension. A second positioning protrusion 21 is formed on the connector 2 at one end of the shaft 15 relative to the first positioning protrusion 61. A shock-absorbing spring 3 is fitted on the shaft 15 located between the first positioning protrusion 61 and the second positioning protrusion 21. The two ends of the shock-absorbing spring 3 are respectively positioned and assembled with the first positioning protrusion 61 and the second positioning protrusion 21. Lubricating oil can be placed inside the self-lubricating bushing 6. After clearance fit with the outside of the shaft 15, an oil film can be formed. The self-lubricating bushing can also achieve the purpose of guiding and limiting the shaft, so that it can wobble intermittently during movement, making the shock-absorbing movement smoother. The first positioning protrusion of the self-lubricating bushing and the second positioning protrusion on the connector can position the spring, reduce the spring wobble, and obtain a better operating environment.

[0042] like Figure 4 As shown, an elastic rubber sleeve 13 is fitted onto the shaft located on the inner end of the shock-absorbing spring. The length of the elastic rubber sleeve 13 is less than the distance between the end face of the connector and the end face of the end panel. The inner diameter of the elastic rubber sleeve 13 can be slightly larger than the shaft, while the outer diameter is close to the inner diameter of the shock-absorbing spring 3. In this way, when the shock-absorbing spring 3 extends and retracts, it can effectively reduce shaking and reduce gaps, thus preventing collision with the shaft. This can improve the quietness during use, thereby reducing friction and noise. The length of the elastic rubber sleeve can be adjusted as needed, leaving a certain length so that the shock-absorbing spring has room to contract.

[0043] like Figure 7As shown, the locking plate in this embodiment includes an operating gripping part 7, an installation guide part 8, and a limiting part 71. The bottom of the limiting part 71 has a limiting surface 710 with the shape and form of the limiting slot. In this embodiment, the limiting surface 710 is an arc-shaped surface, and the limiting slot 16 is an annular groove. The limiting surface is snapped into the limiting slot to complete the limiting. The shape of the limiting slot and the limiting surface can be adjusted as needed, and can be any structure that can complete the limiting.

[0044] The mounting base 5 has a mounting position corresponding to the position of the mounting guide 8. The mounting guide is installed in the mounting position and can move up and down within the mounting position. Figure 5 As shown, the clamping assembly is located on both sides of the limiting part. The clamping assembly includes support sliders 72 fixedly mounted on both sides of the limiting part. A clamping spring 14 is positioned and mounted on each support slider 72. The bottom of the clamping spring 14 is positioned and supported by the support slider 72, and the top of the clamping spring 14 is positioned and supported by the lower end face of the mounting guide part 8. A guide groove 30 is provided in the fixed seat corresponding to the support slider, and the support slider 72 is slidably disposed in the guide groove 30. When the locking piece is pulled out, the support slider 72 can move up and down within the guide groove 30, and the clamping spring 14 is compressed or reset. Both sides of the clamping spring 14 need to be fixedly connected to the mounting guide part 8 and the support slider 72. When no force is applied to the locking piece, the force of the spring presses the locking piece and the connector together.

[0045] like Figure 7 and Figure 8 As shown, the locking pin 9 is inserted from the outside of the fixed base into the fixed base 5. The locking pin 9 has a pin cap on the outside and the inner insertion end is inserted into the fixed base and positioned onto the locking piece. The head of the insertion end of the locking pin is provided with an external thread, and a threaded hole is provided at the position corresponding to the locking piece. In this embodiment, the threaded hole is provided on the installation guide part of the locking piece. Of course, the locking pin and the locking piece can also adopt a concave-convex snap-fit ​​structure, which is not specifically limited here. The position of the threaded hole can also be provided at other positions of the locking piece.

[0046] Among them, a limit ring 12 is provided on the outer side of the connecting block opposite the fixed seat, and a shock-absorbing rubber ring 11 is provided on the side of the limit ring 12 opposite the fixed seat. The other side of the shock-absorbing rubber ring 11 contacts the end face of the fixed seat 5. By providing the shock-absorbing rubber ring 11, the contact between the connecting block 4 and the fixed seat 5 is made softer, effectively reducing hard friction.

[0047] like Figure 9 and Figure 10As shown, this invention discloses a folding scooter. The scooter includes a frame 201 and a body 202, which are rotatably connected. One end of the folding shock absorber is connected to the frame 201, and the other end is connected to the body. During installation, the lug 1 on one side of the connector is connected to the body 202 via a connecting shaft, and both sides of the fixing seat 5 are connected to the frame 201 via connecting shafts. At this point, the shock absorber is installed, and the connection between the frame and the body is hinged. Because the shock absorber and the fixing seat are relatively connected and assembled, the frame and body cannot be folded at this time. When folding is required, simply remove the locking pin manually and pull out the locking plate. The limiting part at the bottom of the locking plate separates from the limiting slot. At this time, the connecting block on the shock absorber can be pulled out relative to the fixing seat, causing the shock absorber to separate from the fixing seat. The frame and body can then be folded, which is very convenient. Figure 11 As shown.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A folding shock absorber with a safety lock device, characterized in that, It includes a mounting base and a shock absorber body, with one end of the shock absorber body inserted into the mounting base; The shock absorber body includes a shaft with threads at both ends. A connector is threaded onto one end of the shaft, and the other end of the shaft is inserted into a connecting block and locked with a nut. One end of the connecting block is inserted into a fixed seat, and a relief cavity is formed in the fixed seat. One end of the shaft and the nut extend into the relief cavity so that when the shock absorber body is subjected to pressure and vibration, the shaft and the nut can perform a relief action within the relief cavity. The connecting block is provided with a limiting slot, and a locking piece is provided on the outer side of the fixing seat. The locking piece is inserted into the limiting slot from top to bottom to restrict the movement of the connecting block relative to the fixing seat in the length direction. The locking plate includes an operating gripping part, an installation guide part, and a limiting part. The bottom of the limiting part is provided with a limiting surface that matches the shape of the limiting slot. The limiting surface is snapped into the limiting slot. The fixing base is provided with an installation position corresponding to the position of the installation guide part. The installation guide part is installed in the installation position and can move up and down in the installation position. The locking plate presses and limits the shock absorber body inserted into the fixed seat through the pressing assembly. The pressing assembly is arranged on both sides of the limiting part. The pressing assembly includes a support slider fixedly arranged on both sides of the limiting part. A pressing spring is positioned and installed on each support slider. The bottom of the pressing spring is positioned and supported by the support slider, and the top of the pressing spring is positioned and supported by the lower end face of the mounting guide. A guide groove is provided in the fixed seat corresponding to the support slider, and the support slider is slidably disposed in the guide groove; A locking pin is inserted into the fixed base from the outside, and the inner insertion end of the locking pin is positioned and locked into the locking piece to restrict the movement of the locking piece relative to the fixed base in the vertical direction.

2. The folding shock absorber with a safety lock device according to claim 1, characterized in that, A self-lubricating bushing is provided on the outer side of the connecting block relative to the shaft. The self-lubricating bushing has a shaft hole in the middle for the shaft to pass through. The self-lubricating bushing is divided into an end panel and an extension. One end of the extension is inserted into the connecting block. The end panel contacts and limits the connection with the outer end face of the connecting block.

3. The folding shock absorber with a safety lock device according to claim 2, characterized in that, A first positioning protrusion is formed on the side of the end panel away from the extension. A second positioning protrusion is formed on the connector head opposite to the first positioning protrusion. A shock-absorbing spring is fitted on the shaft between the first positioning protrusion and the second positioning protrusion. The two ends of the shock-absorbing spring are respectively positioned and assembled with the first positioning protrusion and the second positioning protrusion.

4. The folding shock absorber with a safety lock device according to claim 3, characterized in that, An elastic rubber sleeve is fitted onto the shaft located on the inner end of the shock-absorbing spring. The length of the elastic rubber sleeve is less than the distance between the end face of the connector and the end face of the end panel.

5. The folding shock absorber with a safety lock device according to claim 1, characterized in that, The limiting surface is an arc-shaped surface, and the limiting slot is an annular groove. The arc-shaped surface is inserted into the annular groove to restrict the connecting block from moving relative to the fixed seat along the length direction.

6. The folding shock absorber with a safety lock device according to claim 1, characterized in that, The locking pin is provided with a pin cap on its outside, and the head of the insertion end of the locking pin is provided with an external thread. The locking plate is provided with a threaded hole that mates with the external thread. The locking pin is positioned and locked into the locking plate by the mating of the external thread and the threaded hole.

7. The folding shock absorber with a safety lock device according to claim 6, characterized in that, The threaded hole is provided on the mounting guide of the locking plate.

8. The folding shock absorber with a safety lock device according to claim 1, characterized in that, A limit ring is provided on the outer side of the connecting block opposite the fixed seat. A shock-absorbing rubber ring is provided on the side of the limit ring opposite the fixed seat, and the other side of the shock-absorbing rubber ring is in contact with the end face of the fixed seat.

9. The folding shock absorber with a safety lock device according to claim 1, characterized in that, The limiting slot is located below the limiting part of the locking piece, and the limiting part can be kept engaged in the limiting slot under the action of the compression spring.

10. A folding scooter, characterized in that, The folding scooter is equipped with a folding shock absorber with a safety lock device as described in any one of claims 1 to 9. The folding scooter includes a frame and a body, which are rotatably connected. One end of the folding shock absorber is connected to the frame via the fixed seat, and the other end is connected to the body via the connector. When the locking pin disengages from the locking piece and the locking piece disengages from the limiting slot, the connecting block can disengage relative to the fixing seat, so that the frame can fold relative to the vehicle body.

Images