A shock-absorbing folding crossbar and electric scooter

Abstract

The application discloses a shock-absorbing folding cross rod and an electric scooter, which comprises a fixed rod, two movable rods connected to the two ends of the fixed rod, the end of the movable rod is rotatably connected with the fixed rod through a first rotating shaft, the cross rod further comprises a rotating block and an elastic body, the rotating block is rotatably connected with the end of the fixed rod through the first rotating shaft, the elastic body is arranged on the fixed rod and is attached to the rotating block, when the rotating block rotates around the first rotating shaft, the elastic body can exert an elastic force on the rotating block to prevent the rotating block from rotating, a push rod capable of moving along the movable rod in the axial direction is arranged in the movable rod, a gap into which the push rod is inserted is formed in the rotating block, the cross rod has an unfolded state and a folded state, when the cross rod is in the unfolded state, the fixed rod and the movable rod are in a flat state, and the push rod is inserted into the gap of the rotating block.

Description

Technical Field

[0001] This invention relates to the field of mechanical design, specifically to a shock-absorbing folding crossbar and an electric scooter. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this invention and does not constitute prior art.

[0003] Electric scooter users often store them in their car trunks when out and about. However, the length of the crossbar significantly impacts storage while maintaining a comfortable user experience. Therefore, it's necessary to implement a crossbar length adjustment mechanism. Currently, there are two approaches on the market: Approach 1 uses a folding design, where the crossbar consists of a fixed bar, two movable bars, and two sleeves. The movable bars are movably connected to both sides of the fixed bar via pivots, and unfolding and folding are achieved by sliding the sleeves. Approach 2 uses a rotating design, where the crossbar doesn't have the ability to change its position; the crossbar's direction is aligned with the scooter body primarily by rotating the handlebar.

[0004] Regardless of whether the crossbar is folded or the handle is rotated, if the parts are not fully locked, there will be gaps that cause slight wobbling. When fully locked, the gaps will disappear, and the rotation of the moving rod will be accompanied by a noticeable resistance, which will seriously affect the user experience.

[0005] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a folding crossbar with shock absorption capability and an electric scooter.

[0007] To solve the above-mentioned technical problems, a shock-absorbing folding crossbar is provided, comprising a fixed rod and two movable rods connected to both ends of the fixed rod. The ends of the movable rods are rotatably connected to the fixed rod via a first pivot. The crossbar also includes a rotating block and an elastic body. The rotating block is rotatably connected to the end of the fixed rod via the first pivot. The elastic body is disposed on the fixed rod and fits against the rotating block. When the rotating block rotates around the first pivot, the elastic body can apply a spring force to the rotating block to prevent it from rotating. A push rod that can move along the axial direction of the movable rod is provided inside the movable rod. A notch for inserting the push rod is provided on the rotating block. The crossbar has an unfolded state and a folded state. When the crossbar is in the unfolded state, the fixed rod and the movable rods are in a straight state, and the push rod is inserted into the notch of the rotating block. When the crossbar is in the folded state, the push rod leaves the notch of the rotating block, and the movable rod folds relative to the fixed rod after rotating around the first pivot.

[0008] Preferably, the rotating block includes a first fork and a second fork, a mating surface is formed between the first fork and the second fork, the elastic member is mated to the mating surface, and at least a portion of the elastic member is covered between the first fork and the second fork.

[0009] Preferably, the fixed rod has slots at both ends, and the ends of the elastic body, rotating block and movable rod are connected in the slots. The lower side of the slot is a clearance channel. The first fork is inserted between the elastic body and the top wall of the slot, and the second fork is located on the lower side of the elastic body. When the movable rod rotates downward relative to the fixed rod around the first pivot, it can pass through the clearance channel.

[0010] Preferably, the elastomer and the rotating block are interference-fitted, the elastomer has a circular structure, and the contact surface between the elastomer and the rotating block is an arc-shaped contact surface.

[0011] Preferably, the elastomer is fixed to the fixing rod by a locking screw, and the elastomer is made of silicone or PU material.

[0012] Preferably, the movable rod includes a first housing and a second housing. The first housing includes a first housing body, a first connecting part located at the tail of the first housing body, and a second connecting part located at the head of the first housing. The second connecting part is rotatably connected to the fixed rod via a first rotating shaft. The first connecting part is threadedly connected to the second housing. The side wall of the first housing body has an axially extending elongated opening. A plug is also provided on the inner side of the tail of the first housing. A movable component is provided inside the first housing. The movable component includes the push rod, a blocking part, and a lever connected to the blocking part. The push rod passes through the blocking part and is fixedly connected to the blocking part. The head of the first housing has a first opening for the head of the push rod to pass through. The plug has a second opening through which the tail of the push rod passes. The movable part can move axially within the housing. A spring is also fitted on the push rod, and the spring is compressed between the blocking part and the plug. At least a portion of the lever is located on the outside of the housing. The lever passes through the elongated opening and connects to the blocking part. When the crossbar is in the unfolded state, the blocking part, under the action of the spring, drives the push rod to move towards the head direction. The head of the push rod is inserted into the notch of the rotating block. When the lever is moved towards the tail direction, the blocking part overcomes the elastic force of the spring and drives the push rod to move towards the tail direction. The head of the push rod leaves the notch of the rotating block, and the crossbar is in a foldable state.

[0013] Preferably, the second connecting part consists of two protruding posts that protrude towards the head from opposite sides of the housing body. The protruding posts are inserted into the slots of the fixing rod and connected to the fixing rod via the first rotating shaft. The rotating block is located between the two protruding posts.

[0014] Preferably, the outer wall of the first connecting part has an external thread structure for threaded connection with the housing, and the inner wall of the first connecting part has an internal thread structure for threaded connection with the plug.

[0015] This application also provides an electric scooter, including the aforementioned crossbar.

[0016] By employing the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] The present invention relates to a shock-absorbing folding crossbar and electric scooter. Through the deformation of the elastic body, the swaying and resistance of the folding crossbar are effectively reduced. Furthermore, when operating on bumpy roads, the elastic body provides cushioning and shock absorption, enhancing the user experience. Folding is achieved simply by moving the push rod, making operation simple and convenient. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the folding crossbar of this application.

[0019] Figure 2 This is an exploded structural diagram of the folding crossbar of this application.

[0020] Figure 3 This is a partial cross-sectional structural diagram of the folding crossbar of this application.

[0021] Figure 4 This is a structural schematic diagram of the movable component of this application.

[0022] Figure 5 This is a structural schematic diagram of the shell of this application.

[0023] Figure 6 This is a partial structural schematic diagram of the folding crossbar of this application.

[0024] Figure 7 This is a schematic diagram of the folding crossbar of this application when folded.

[0025] Figure 8 This is a partial cross-sectional view of the folding crossbar of this application when folded.

[0026] Among them, 1. Fixed rod; 2. Shell 1; 3. Shell 2;

[0027] 4. Moving parts; 5. Springs; 6. Sealing blocks; 7. Elastomers; 8. Rotating blocks; 9. Locking screws;

[0028] 81. First fork; 82. Second fork; 83. Third fork;

[0029] 41. Push rod; 42. Blocking part; 43. Pulley;

[0030] 21. First connecting part; 22. Housing body; 23. Second connecting part; 24. Opening. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that in the description of this invention, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] like Figure 1-3 As shown, this application discloses a shock-absorbing folding crossbar, comprising a fixed rod 1 and two movable rods connected to both ends of the fixed rod 1. The ends of the movable rods are rotatably connected to the fixed rod 1 via a first pivot. The crossbar also includes a rotating block 8 and an elastic body 7. The rotating block 8 is rotatably connected to the end of the fixed rod 1 via the first pivot. The elastic body 7 is disposed on the fixed rod 1 and fits against the rotating block 8. When the rotating block 8 rotates around the first pivot, the elastic body 7 can apply a resistance to the rotating block 8. The rotating block 8 has a spring force for rotation. The movable rod is provided with a push rod 41 that can move along the axis of the movable rod. The rotating block 8 has a notch for inserting the push rod 41. The crossbar has an unfolded state and a folded state. When the crossbar is in the unfolded state, the fixed rod 1 and the movable rod are in a straight state. The push rod 41 is inserted into the notch of the rotating block 8. When the crossbar is in the folded state, the push rod 41 leaves the notch of the rotating block 8. After the movable rod rotates around the first axis, it folds relative to the fixed rod 1.

[0034] The deformation of the elastomer 7 can effectively reduce the swaying and resistance of the folding crossbar, and the cushioning of the elastomer 7 provides shock absorption when working on bumpy roads.

[0035] When the crossbar sways, the push rod 41 and the moving part 4 interact. Under the action of the push rod 41, the moving part 4 rotates along the first axis. Since the elastic element and the moving part 4 are in contact, the sway of the moving part 4 is absorbed by the elastic body 7, thus achieving the shock absorption effect.

[0036] The push rod 41 is in rigid contact with the rotating block 8. When the crossbar is in the extended state, the push rod 41 can be inserted into the notch of the rotating block 8. The elastic body 7 is in elastic contact with the rotating block 8. When the push rod 41 moves up and down, the rotating block 8 can reduce the range of the push rod 41's up and down movement by slightly rotating around the first axis. Rotational movement requires less space than up and down movement, allowing for a larger range of movement in a smaller space. Therefore, the rotating block 8 structure of this application can achieve force buffering in the narrow space of the slot of the fixed rod 1, preventing collisions between parts.

[0037] Furthermore, because the head area of ​​push rod 41 is small, its contact area with rotating block 8 is also small. However, the elastic body 7 and rotating block 8 make contact through a larger contact surface. The rotating block 8 increases the buffer surface area of ​​the elastic body 7, and the larger contact area disperses the force, thereby reducing the stress per unit area. This increases the load-bearing capacity of the elastic body 7 on the contact components. When the force is distributed over a larger area, the pressure at each point is smaller, which also helps reduce local stress concentration and prevent material failure.

[0038] The rotating block 8 includes a first fork 81 and a second fork 82, with a contact surface formed between the first fork 81 and the second fork 82. The elastic element is in contact with the contact surface, and at least a portion of the elastic element is covered between the first fork 81 and the second fork 82. The elastic body 7 is in an interference fit with the rotating block 8, and the elastic body 7 has a circular structure. The contact surface between the elastic body 7 and the rotating block 8 is an arc-shaped contact surface. The arc-shaped contact surface not only increases the contact area between the elastic body 7 and the rotating block 8, but also helps to reduce the local stress peak on the contact surface, thus avoiding damage caused by excessive local stress. Because the elastic body 7 and the rotating block 8 are in an interference fit, the deformation provided by the elastic body 7 can reduce the gap between the parts and eliminate the slight shaking sensation during use.

[0039] The fixed rod 1 has slots at both ends. The ends of the elastic body 7, rotating block 8, and movable rod are connected to the slots. The lower side of the slot is a clearance channel. The first fork 81 is inserted between the elastic body 7 and the top wall of the slot, and the second fork 82 is located below the elastic body 7. When the movable rod rotates downward relative to the fixed rod 1 around the first pivot, it can pass through the clearance channel. The elastic body 7 is fixed to the fixed rod 1 by a locking screw. The elastic body 7 is made of silicone or PU material.

[0040] The movable rod includes a first housing 2 and a second housing 3. The first housing 2 includes a first housing body 22, a first connecting part 21 located at the tail of the first housing body 22, and a second connecting part 23 located at the head of the first housing 2. The second connecting part 23 is rotatably connected to the fixed rod 1 via a first rotating shaft. The first connecting part 21 is threadedly connected to the second housing 3. The side wall of the first housing body 22 has an axially extending elongated opening 24. A plug is also provided on the inner side of the tail of the first housing 2. A movable component 4 is provided inside the first housing 2. The movable component 4 includes a push rod 41, a blocking part 42, and a lever 43 connected to the blocking part 42. The push rod 41 passes through the blocking part 42 and is fixedly connected to the blocking part 42. The head of the first housing 2 has a first opening for the head of the push rod 41 to pass through. The plug has a second opening 24 for the tail of the push rod 41 to pass through. The movable part 4 can move axially within the housing 2. A spring 5 is also fitted on the push rod 41. The spring 5 is compressed between the blocking part 42 and the plug. At least a part of the lever 43 is located on the outside of the housing 2. The lever 43 passes through the elongated opening 24 and is connected to the blocking part 42. When the crossbar is in the unfolded state, the blocking part 42 drives the push rod 41 to move towards the head direction under the action of the spring 5. The head of the push rod 41 is inserted into the notch of the rotating block 8. When the lever 43 is moved towards the tail direction, the blocking part 42 overcomes the elastic force of the spring 5 and drives the push rod 41 to move towards the tail direction. The head of the push rod 41 leaves the notch of the rotating block 8, and the crossbar is in a foldable state. In a preferred embodiment, the second connecting part 23 consists of two protruding posts that protrude towards the head from opposite sides of the housing body 22. These protruding posts are inserted into the slots of the fixing rod 1 and connected to the fixing rod 1 via a first rotating shaft. The rotating block 8 is located between the two protruding posts. The outer wall of the first connecting part 21 has an external thread structure for threaded connection with the housing body 22, and the inner wall of the first connecting part 21 has an internal thread structure for threaded connection with the plug.

[0041] This application also provides an electric scooter, including the aforementioned crossbar.

[0042] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A shock-absorbing folding crossbar, comprising a fixed rod and two movable rods connected to both ends of the fixed rod, wherein the ends of the movable rods are rotatably connected to the fixed rod via a first pivot, characterized in that, The crossbar also includes a rotating block and an elastic body. The rotating block is rotatably connected to the end of the fixed rod via a first rotating shaft. The elastic body is disposed on the fixed rod and fits against the rotating block. When the rotating block rotates around the first rotating shaft, the elastic body can apply a spring force to the rotating block to prevent it from rotating. The rotating block includes a first fork and a second fork, with a mating surface formed between the first fork and the second fork. The elastic body is mated to the mating surface, and at least a portion of the elastic body is covered between the first fork and the second fork. The elastic body and the rotating block are interference-fitted, the elastic body has a circular structure, and the contact surface between the elastic body and the rotating block is an arc-shaped contact surface. The movable rod contains a push rod that can move along its axial direction, and the rotating block has a notch for inserting the push rod. The crossbar has an unfolded state and a folded state. When the crossbar is in the extended state, the fixed rod and the movable rod are in a straight state, and the push rod is inserted into the notch of the rotating block. When the crossbar is in a folded state, the push rod leaves the notch of the rotating block, and the movable rod folds relative to the fixed rod after rotating around the first axis.

2. The crossbar according to claim 1, characterized in that, The fixed rod has slots at both ends, and the ends of the elastic body, rotating block and movable rod are connected in the slots. The lower side of the slot is a clearance channel. The first fork is inserted between the elastic body and the top wall of the slot, and the second fork is located on the lower side of the elastic body. When the movable rod rotates downward relative to the fixed rod around the first pivot, it can pass through the clearance channel.

3. The crossbar according to claim 1, characterized in that, The elastomer is fixed to the fixing rod by a locking screw, and the elastomer is made of silicone or PU material.

4. The crossbar according to claim 1, characterized in that, The movable rod includes housing one and housing two. The first housing includes a housing body, a first connecting portion located at the tail of the housing body, and a second connecting portion located at the head of the housing body. The second connecting portion is rotatably connected to the fixed rod via a first rotating shaft. The first connecting portion is threadedly connected to the second housing. The side wall of the housing body has an axially extending elongated opening, and a plug is also provided on the inner side of the tail of the first housing. The housing contains a movable component, which includes a push rod, a blocking part, and a lever connected to the blocking part. The push rod passes through the blocking part and is fixedly connected to it. The head of the housing has a first opening through which the head of the push rod passes, and the plug has a second opening through which the tail of the push rod passes. The movable component is capable of axial movement within the housing. A spring is also fitted onto the push rod, and the spring is compressed between the blocking part and the plug. At least a portion of the lever is located on the outside of the housing, and the lever passes through the elongated opening and connects to the blocking portion. When the crossbar is in the extended state, the blocking part, under the action of the spring, drives the push rod to move towards the head direction, and the head of the push rod is inserted into the notch of the rotating block. When the lever is moved towards the tail direction, the blocking part overcomes the elastic force of the spring and drives the push rod to move towards the tail direction, and the head of the push rod leaves the notch of the rotating block, and the crossbar is in a foldable state.

5. The crossbar according to claim 4, characterized in that, The second connecting part consists of two protruding posts that protrude towards the head of the shell body. The protruding posts are inserted into the slots of the fixing rod and connected to the fixing rod through the first rotating shaft. The rotating block is located between the two protruding posts.

6. The crossbar according to claim 5, characterized in that, The outer wall of the first connecting part has an external thread structure for connecting with the housing by two threads, and the inner wall of the first connecting part has an internal thread structure for connecting with the plug by threads.

7. An electric scooter, characterized in that, Includes the crossbar as described in any one of claims 1-6.

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