Frames and bicycles

Abstract

This application relates to the field of bicycle technology and discloses a frame and bicycle, including: a front frame, a positioning component, a front fork, a connecting shaft, a shock absorber, and a connecting component. The upper part of the shock absorber is rotatably connected to the positioning component, and the lower part passes through the mounting hole of the front fork and through the connecting shaft. The front fork and the front frame are rotatably connected by the connecting component. Therefore, vibrations from the front fork can be buffered by the shock absorber. The shock absorber can rotate relative to the positioning component, the connecting component can rotate relative to the front fork, and the connecting component can rotate relative to the front frame. When subjected to vibration and impact, the front fork, shock absorber, and connecting component can adaptively rotate to adapt to different road conditions, thereby improving shock absorption and riding stability. The shock absorber is located at the front of the front frame, which is convenient to operate and has a stable connection. It can reduce the number of parts on both sides of the wheel and the number of shock absorbers, thereby reducing the overall weight and contributing to the lightweight design of the bicycle.

Description

Technical Field

[0001] This application relates to the field of bicycle technology, and in particular to a frame and a bicycle. Background Technology

[0002] Some bicycles have shock absorbers installed between the sides of the wheel and the front fork, which can effectively buffer wheel vibrations during riding and improve riding comfort. However, the installation space between the lower end of the front fork and the wheel is limited, making the installation of shock absorbers more complicated. Furthermore, the lower end of the front fork is usually located on both sides of the wheel axle, requiring shock absorbers to be installed on both sides of the wheel, resulting in a bulky structure that is not conducive to the lightweighting of the bicycle. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a frame that effectively solves the problems of cumbersome shock absorber installation and bulky structure. This application also proposes a bicycle frame and a bicycle incorporating this frame.

[0004] In a first aspect, the frame of this application includes: a front body, a positioning member, a front fork, a connecting shaft, a shock absorber, and a connecting member; the rear end of the positioning member is connected to the front body, the front fork is disposed below the positioning member along a first direction, and the front fork has a mounting hole extending along the first direction; the connecting shaft is connected to the front fork on the side of the mounting hole away from the positioning member; the shock absorber is located in front of the front body, and along the first direction, the upper part of the shock absorber is rotatably connected to the front end of the positioning member about a first axis, the lower part of the shock absorber passes through the mounting hole and is connected to the connecting shaft, and the lower part of the shock absorber and the connecting shaft are fixed relative to each other along the first direction; one end of the connecting member is rotatably connected to the front fork about a second axis via the connecting shaft, and the other end of the connecting member is rotatably connected to the front body about a third axis; wherein, the first axis, the second axis, and the third axis are parallel to each other and intersect the first direction.

[0005] The frame according to the embodiments of this application has at least the following beneficial effects: the upper part of the shock absorber is rotatably connected to the positioning member, and the lower part passes through the mounting hole of the front fork and is fixed in the first direction through the connecting shaft. The front fork and the front frame are rotatably connected through the connecting member. Therefore, the vibration received by the front fork from the wheel can be buffered by the shock absorber without directly impacting the front frame. The shock absorber can rotate relative to the positioning member about a first axis, the connecting member can rotate relative to the front fork about a second axis, and the connecting member can rotate relative to the front frame about a third axis. The first axis, the second axis, and the third axis are parallel to each other, so the position of the front fork can be restricted by the connecting member and the shock absorber. When subjected to vibration and impact, the front fork, the shock absorber, and the connecting member can rotate adaptively to adapt to different road conditions, thereby improving the shock absorption effect and riding stability. Furthermore, the shock absorber is located at the front of the front frame and is installed from above through the front fork via the connecting shaft, which is convenient to operate and has a stable connection. Compared with the scheme of arranging the shock absorber between the front fork and the sides of the wheel, it can reduce the number of parts on both sides of the wheel and the number of shock absorbers, thereby reducing the overall weight and facilitating the lightweight design of the bicycle.

[0006] According to some embodiments of the present application, the frame includes a front fork comprising opposing connecting rods and a mounting portion connected between the connecting rods, wherein the connecting rods are spaced apart to form a mounting space, the mounting portion having a mounting hole extending from the mounting portion toward the positioning member to the mounting space; the connecting shaft is at least partially located within the mounting space, one end of the connecting member is located within the mounting space and connected to the connecting shaft; the lower part of the shock absorber is at least partially located within the mounting space and connected to the connecting shaft.

[0007] According to some embodiments of the present application, each of the connecting rods is provided with a connecting hole along the second axis, and the two ends of the connecting shaft are respectively passed through the connecting holes of the two connecting rods and are respectively fixed relative to the corresponding connecting rods along the second axis.

[0008] According to some embodiments of the present application, in the vehicle frame, each of the connecting rods extends downward from the mounting portion along the first direction, and the lower end of the connecting rod is used to connect to the wheel.

[0009] According to some embodiments of the present application, the vehicle frame has a first connecting position and a second connecting position spaced apart front and rear; the first connecting position is provided with connecting portions spaced apart along the second axis, each connecting portion is provided with a first through hole, the lower part of the shock absorber is provided with a second through hole, the lower part of the shock absorber is located between the two connecting portions, and the connecting shaft passes through the first through hole and the second through hole along the second axis; the second connecting position is rotatably connected to the front vehicle body about the third axis.

[0010] According to some embodiments of the present application, the frame of the shock absorber has a first guide surface extending downward from top to bottom and toward the centerline of the shock absorber, and a connecting end extending downward from the lower end of the first guide surface. The connecting end has a second through hole passing through the second axis, and the connecting shaft passes through the second through hole; and / or, the mounting hole has a second guide surface at the opening on the side facing the positioning member, and the second guide surface extends downward from the upper end face of the fork toward the centerline of the mounting hole.

[0011] According to some embodiments of the present application, the vehicle frame includes a shock absorber comprising a first shaft, a second shaft, and a shock-absorbing assembly. The first shaft is sleeved on the upper end of the second shaft along the first direction. The upper part of the first shaft is rotatably connected to the positioning member. The lower part of the second shaft is provided with the first guide surface and the connecting end. The lower part of the second shaft passes through the mounting hole. The connecting end is connected to the connecting shaft. The shock-absorbing assembly is disposed between the first shaft and the second shaft.

[0012] According to some embodiments of the present application, the frame is inclined relative to the vertical direction in the first direction, and the shock absorber extends forward from top to bottom.

[0013] According to some embodiments of the present application, the vehicle frame further includes a crossbeam and a locking member. The front body is rotatably connected to the crossbeam so that the vehicle frame can switch between a folded state and an unfolded state. In the unfolded state, the rear end of the front body abuts against the front end of the crossbeam. The locking member is used to detachably connect the front body and the crossbeam in the unfolded state to lock the relative position of the front body and the crossbeam. The locking member can be driven to unlock the front body and the crossbeam so that the front body and the crossbeam can rotate relative to each other to the folded state.

[0014] Secondly, the bicycle of this application embodiment includes handlebars, wheels, and the aforementioned frame; the lower part of the handlebars is rotatably connected to the front part of the frame; and the lower part of the front fork is connected to the wheels.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the vehicle frame structure according to an embodiment of this application;

[0017] Figure 2 This is a partially enlarged schematic diagram of the vehicle frame according to an embodiment of this application;

[0018] Figure 3This is a schematic diagram of a vertical cross-section of a portion of the frame structure according to an embodiment of this application;

[0019] Figure 4 for Figure 3 Schematic diagram of the cross section at point AA;

[0020] Figure 5 for Figure 3 A partial schematic diagram at point B in the diagram;

[0021] Figure 6 This is a schematic diagram of the vehicle frame from another perspective in one embodiment of this application.

[0022] Figure label:

[0023] Positioning component 100;

[0024] Shock absorber 200; first guide surface 220; first shaft 230; second shaft 240; connecting end 241; second through hole 242; shock absorption assembly 250;

[0025] Front fork 300; mounting part 310; mounting hole 311; connecting rod 320; mounting space 330; second guide surface 340;

[0026] Connecting shaft 400; main body 410; limiting part 420; locking part 430; bolt 440; washer 450;

[0027] Connector 500; First connecting position 510; Connecting part 511; First through hole 512; Second connecting position 520;

[0028] Front body 600; fixed axle 610; crossbeam 620; first protrusion 630; second protrusion 640; latch 650;

[0029] Rear body 700; handlebars 800. Detailed Implementation

[0030] The following will clearly and completely describe the concept and technical effects of this application in conjunction with embodiments, so as to fully understand the purpose, features and effects of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0031] In the description of the embodiments of this application, if directional descriptions are involved, such as "up", "down", "front", "back", "left", "right" etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] In the description of the embodiments of this application, if a feature is referred to as "setting," "fixing," "connecting," or "installing" on another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of this application, if "several" is involved, it means one or more; if "multiple" is involved, it means two or more; if "greater than," "less than," or "exceeds," it should be understood as excluding the stated number; if "above," "below," or "within," it should be understood as including the stated number. If "first" or "second" is involved, it should be understood as used to distinguish technical features, and not as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0033] A bicycle typically consists of a frame, handlebars, and wheels. The frame includes the chassis, front fork, and rear fork. The chassis serves as the mounting base and is mainly used to mount the front fork, rear fork, and handlebars. The front fork and rear fork are used to connect the front wheel and the rear wheel, respectively.

[0034] This application provides a frame that connects the shock absorber, front frame, and front fork, improving the ease of installation and connection stability of the shock absorber, and effectively reducing the weight of the frame. This application also provides a bicycle including this frame. The bicycle involved in this application can be a human-powered bicycle or an electric bicycle, etc. The following description, in conjunction with the appendix... Figure 1 To be continued Figure 6 The embodiments of this application will be described.

[0035] refer to Figures 1 to 3 The frame of this application embodiment includes a positioning component 100, a shock absorber 200, a front fork 300, a connecting shaft 400, a connecting component 500, and a front body 600.

[0036] The rear end of the positioning component 100 is connected to the front frame 600. The front fork 300 is located below the positioning component 100 along the first direction. The shock absorber 200 is located in front of the front frame 600 and connected between the positioning component 100 and the front fork 300. Compared with the commonly used solution of arranging the shock absorber 200 between the two sides of the wheel and the front fork 300, the number of parts on both sides of the wheel and the number of shock absorbers 200 can be reduced, thereby reducing the overall weight and facilitating the lightweight design of the bicycle.

[0037] The upper part of the shock absorber 200 is rotatably connected to the front end of the positioning member 100 around the first axis. The front fork 300 is provided with a mounting hole 311 that runs through the first direction. The connecting shaft 400 is connected to the front fork 300 on the side of the mounting hole 311 away from the positioning member 100. The lower part of the shock absorber 200 passes through the mounting hole 311 and is connected to the connecting shaft 400. The lower part of the shock absorber 200 and the connecting shaft 400 are fixed relative to each other in the first direction. One end of the connecting member 500 is rotatably connected to the front fork 300 around the second axis via the connecting shaft 400. The other end of the connecting member 500 is rotatably connected to the front body 600 around the third axis.

[0038] The shock absorber 200 can rotate relative to the positioning member 100 about a first axis, the connecting member 500 can rotate relative to the fork 300 about a second axis, and the connecting member 500 can rotate relative to the front frame 600 about a third axis. The first, second, and third axes are parallel to each other and intersect with a first direction. Therefore, the position of the fork 300 can be restricted by the connecting member 500 and the shock absorber 200. The positioning member 100, shock absorber 200, and connecting member 500 can form a four-bar linkage with the front end of the front frame 600. When the fork 300 is subjected to vibration and impact, the fork 300, shock absorber 200, and connecting member 500 can adaptively rotate to adapt to different road conditions, improving shock absorption and riding stability. It is understood that the intersection of the first, second, and third axes with the first direction can be perpendicular, or it can have a certain degree of deviation while ensuring the flexible rotation of the fork 300, shock absorber 200, and connecting member 500.

[0039] Furthermore, the shock absorber 200 is located in front of the front body 600, passes through the front fork 300 from above and is installed via the connecting shaft 400, which allows for convenient operation and stable connection.

[0040] During riding, the frame bears the weight and, through the front frame 600 and the positioning component 100, presses down on the shock absorber 200. This weight is then transmitted to the front fork 300 via the connecting shaft 400, and finally to the ground via the front wheel. The vibration and impact force on the front wheel is transmitted through the front fork 300 to the connecting shaft 400, and then, after being buffered by the shock absorber 200, is transmitted to the positioning component 100, the front frame 600, or other structures connected to the front frame 600 (such as the handlebars 800, crossbeam 620, etc.). Thus, the vibration received by the front fork 300 from the wheel is buffered by the shock absorber 200 and does not directly impact the front frame 600. Therefore, when the front fork 300 bears the vibration of the wheel, the shock absorber 200 can effectively reduce the vibration transmitted to the positioning component 100, thereby reducing the vibration of the front frame 600 and the handlebars 800 connected to the front frame 600, and improving riding comfort.

[0041] refer to Figures 1 to 3 The front fork 300 includes connecting rods 320 disposed opposite each other and mounting portions 310 connected between the connecting rods 320. The connecting rods 320 are spaced apart to form mounting spaces 330. The mounting portions 310 have mounting holes 311 extending from the mounting portion 310 toward the positioning member 100 into the mounting spaces 330. At least a portion of the connecting shaft 400 is located within the mounting spaces 330. At least a portion of the lower part of the shock absorber 200 is located within the mounting spaces 330 and connected to the connecting shaft 400, thereby fixing the lower part of the shock absorber 200 in a first direction. The shock absorber 200 is limited by the positioning member 100 and the connecting shaft 400. One end of the connecting member 500 is located within the mounting spaces 330 and connected to the connecting shaft 400, thereby limiting the relative position of the front fork 300 and the front frame 600 in the longitudinal direction, and also limiting the relative position of the lower part of the shock absorber 200 and the front frame 600 in the longitudinal direction.

[0042] Understandably, during the process of damping vibration, the overall length of the shock absorber 200 along the first direction will change. Therefore, the connecting member 500, through the rotational engagement between the connecting shaft 400 and the front fork 300, enables the shock absorber 200 to rotate around the second axis when it is compressed or extended. At the same time, the other end of the connecting member 500 rotates in coordination with the front body 600 around the third axis, thereby maintaining the flexibility of movement and structural stability during the change of the length of the shock absorber 200.

[0043] In some embodiments, each connecting rod 320 is provided with a connecting hole along the second axis, and the two ends of the connecting shaft 400 are respectively passed through the connecting holes of the two connecting rods 320 and respectively fixed relative to the corresponding connecting rods 320 along the second axis, thereby ensuring a stable connection between the connecting shaft 400 and the fork 300. Therefore, the shock absorber 200 and the connector 500 can be installed through the connecting shaft 400.

[0044] refer to Figures 2 to 4 The connecting shaft 400 includes a main body 410, a limiting part 420, and a locking part 430. The main body 410 has a rod-shaped structure and is used to pass through the connecting hole of the connecting rod 320. The limiting part 420 is located at one end of the main body 410 and is used to abut against the side of one of the connecting rods 320 away from the mounting space 330 to achieve axial limiting of one end of the connecting shaft 400. The locking part 430 is located at the other end of the connecting shaft 400 away from the limiting part 420 and is used to cooperate with the other connecting rod 320 for connection. For example, the locking part 430 can be a threaded rod with an external thread at one end, and the connecting hole of the other connecting rod 320 can be a threaded hole. The threaded rod is screwed into the threaded hole for connection. Alternatively, the threaded rod can extend to the side of the other connecting rod 320 away from the mounting space 330 and be screwed in with a nut. Or, the locking part 430 can not be a threaded structure. Instead, the locking part 430 has a pin hole that extends radially through the main body 410, and extends to the side of the other connecting rod 320 away from the mounting space 330, with a locking pin passing through the pin hole. Alternatively, the locking part 430 has an internal thread hole that extends axially through the other end away from the limiting part 420, and extends to the side of the other connecting rod 320 away from the mounting space 330, and is locked in place with a bolt 440. Thus, axial limiting is achieved through the limiting part 420 and the locking part 430. This prevents the connecting shaft 400 from coming off along the second axis, thereby ensuring the connection stability between the connecting shaft 400 and the fork 300.

[0045] The lower part of the shock absorber 200 and one end of the connector 500 can be fitted with the connecting shaft 400 through through holes. For example, the connector 500 has a first connecting position 510 and a second connecting position 520 spaced apart. The second connecting position 520 is rotatably connected to the front vehicle body 600 around a third axis. The first connecting position 510 is provided with connecting parts 511 spaced apart along the second axis. Each connecting part 511 is provided with a first through hole 512. The lower part of the shock absorber 200 is provided with a second through hole 242. The lower part of the shock absorber 200 is located between the two connecting parts 511. The connecting shaft 400 passes through the first through hole 512 and the second through hole 242 along the second axis, thereby realizing the limiting connection of the shock absorber 200 in the first direction and the limiting connection of the connector 500 in the front and rear directions. For example, the lower part of the shock absorber 200 is provided with a connecting end 241, the connecting end 241 is provided with a second through hole 242 that runs through the second axis, the connecting end 241 is located between two connecting parts 511, and the first through hole 512 and the second through hole 242 can be aligned along the second axis.

[0046] When installing the shock absorber 200 and the front fork 300, simply connect the upper part of the shock absorber 200 to the positioning member 100, then pass the lower part of the shock absorber 200 through the mounting hole 311, positioning the lower part of the shock absorber 200 between the two connecting parts 511 of the connector 500. Align the first through hole 512 and the second through hole 242, insert the connecting shaft 400 into the connecting hole from the outside of one of the connecting rods 320, and sequentially pass through the first through hole 512 of one connecting part 511, the second through hole 242 of the lower part of the shock absorber 200, and the first through hole 512 of the other connecting part 511. Then, lock it with the other connecting rod 320 using the locking part 430 to complete the assembly. The assembly operation space is large, the operation is simple, and the connection is stable.

[0047] When it is necessary to disassemble the shock absorber 200 from the fork 300, simply release the connection between the locking part 430 and the other connecting rod 320, and pull the connecting shaft 400 out from the outside of the other connecting rod 320. This will sequentially disengage the first through hole 512 of the other connecting part 511, the second through hole 242 at the bottom of the shock absorber 200, and the first through hole 512 of the connecting part 511. Then, rotate the fork 300 backward so that the connecting part 500 can rotate around the third axis to remove the lower part of the shock absorber 200 from the mounting hole 311. The disassembly process is convenient and efficient.

[0048] Understandably, a shim 450 can be provided between the connecting end 241 at the lower end of the shock absorber 200 and the connecting portion 511 of the connector 500 to help reduce wear between the connecting end 241 and the connecting portion 511; similarly, a shim 450 can also be provided between the connecting portion 511 and the connecting rod 320 of the fork 300 to help reduce wear between the connecting portion 511 and the connecting rod 320.

[0049] The lower part of the shock absorber 200 can rotate relative to the connecting member 500 and the connecting shaft 400. Similarly, the connecting member 500 can rotate relative to the connecting shaft 400 and the lower part of the shock absorber 200. Thus, the shock absorber 200 and the connecting member 500 can adaptively adjust their angles according to road conditions during vehicle operation, avoiding excessive stress caused by rigid connection and improving the service life of the shock absorber 200.

[0050] To increase the ease of assembly of the shock absorber 200, some guide structures can also be provided on the lower outer wall of the shock absorber 200 and / or the upper part of the fork 300. For example, refer to Figure 3 and Figure 5In some embodiments, the lower outer wall of the shock absorber 200 is provided with a first guide surface 220 extending downwards towards the centerline of the shock absorber 200, and a connecting end 241 extending downwards from the lower end of the first guide surface 220. The connecting end 241 is provided with a second through hole 242 through a second axis, and the connecting shaft 400 passes through the second through hole 242; and / or, a second guide surface 340 is provided at the opening of the mounting hole 311 facing the positioning member 100, and the second guide surface 340 extends downwards from the upper end face of the mounting part 310 towards the centerline of the mounting hole 311. It is understood that either the first guide surface 220 or the second guide surface 340 can be provided, or both can be provided simultaneously. The specific selection can be adjusted according to actual installation requirements. The first guide surface 220 and / or the second guide surface 340 can guide the lower shock absorber 200 during insertion into the mounting hole 311, so that the shock absorber 200 can smoothly enter the mounting hole 311.

[0051] The first guide surface 220 at the lower part of the shock absorber 200 can be formed around a conical or arc-shaped structure with the smaller end facing down, and the connecting end 241 extends downward from the lower end of the first guide surface 220. The first guide surface 220 can guide the shock absorber 200 to quickly align during the insertion of the lower part of the shock absorber 200 into the mounting hole 311, which helps to quickly assemble and accurately fit the shock absorber 200 with the opening of the mounting hole 311 of the fork 300, thereby improving assembly efficiency.

[0052] The second guide surface 340 at the opening of the mounting hole 311 facing the positioning member 100 can be a conical or arc-shaped structure with the large end facing up. It can guide the shock absorber 200 to quickly center during the process of inserting the lower part of the shock absorber 200 into the mounting hole 311, so that the shock absorber 200 and the mounting hole 311 of the fork 300 can be quickly assembled.

[0053] As an example, see reference Figure 2 and Figure 3The shock absorber 200 includes a first shaft 230, a second shaft 240, and a shock-absorbing assembly 250. The first shaft 230 is sleeved on the upper end of the second shaft 240 along a first direction. The upper part of the first shaft 230 is rotatably connected to the positioning member 100. The lower part of the second shaft 240 passes through a mounting hole 311. The second shaft 240 may have the aforementioned first guide surface 220 and a connecting end 241. The connecting end 241 is connected to the connecting shaft 400. In some embodiments, the connecting end 241 is at least partially located within the mounting space 330 between the two connecting rods 320 of the fork 300 to facilitate the passage of the connecting shaft 400. The shock-absorbing assembly 250 is disposed between the first shaft 230 and the second shaft 240. The shock-absorbing assembly 250 is used to absorb vibrations along the axial direction of the first shaft 230 and the second shaft 240. The shock-absorbing assembly 250 may be an elastic element such as a spring or shock absorber 200. These elements are designed to deform under external force, thereby absorbing and dispersing vibration energy.

[0054] When a bicycle travels on an uneven surface, the wheels experience impact forces from the road surface. These impact forces are transmitted through the wheels, front fork 300, and connecting axle 400 to the second axle 240 of the shock absorber 200, and then to the shock absorption assembly 250. The shock absorption assembly 250 deforms through its internal elastic elements, converting some of the vibration energy into heat or other forms of energy, thereby reducing the impact on the first axle 230, and further reducing the impact on the positioning member 100 and the front frame 600. With the cushioning of the shock absorption assembly 250, the counter-impact on the front fork 300 is also reduced, which helps to improve connection stability and riding comfort.

[0055] refer to Figure 1 and Figure 3 In some embodiments, each connecting rod 320 extends downward from the mounting portion 310 along a first direction. The lower end of the connecting rod 320 is used to connect to the wheel. Therefore, the impact force transmitted from the wheel is transmitted upward through the connecting rod 320 along the first direction to the mounting portion 310 and the connecting shaft 400, and then transmitted from the connecting shaft 400 to the shock absorber 200, thereby effectively achieving a shock absorption effect. The connecting rod 320 extending along the first direction makes the force transmission path more direct, effectively improving the load-bearing capacity and shock absorption efficiency of the frame.

[0056] refer to Figure 1 and Figure 3In some embodiments, the first direction is inclined relative to the vertical direction, and the shock absorber 200 extends forward from top to bottom. As a result, the connecting rod 320 of the front fork 300 forms a certain tilt angle with the vertical direction. Therefore, under the impact force of the front wheel, the four-bar structure formed by the front body 600, the positioning member 100, the shock absorber 200, and the connecting member 500 can adaptively swing back and forth slightly. At the same time, the elastic deformation of the shock absorber 200 absorbs part of the impact energy, thereby achieving a good shock absorption effect.

[0057] refer to Figure 1 , Figure 2 and Figure 6 In some embodiments, the frame also includes a crossbeam 620 and a locking member. The front body 600 is rotatably connected to the crossbeam 620 so that the frame can switch between a folded state and an unfolded state. In the unfolded state, the rear end of the front body 600 abuts against the front end of the crossbeam 620. The locking member is used to detachably connect the front body 600 and the crossbeam 620 in the unfolded state to lock the relative position of the front body 600 and the crossbeam 620. The locking member can be driven to unlock the front body 600 and the crossbeam 620. The locking member can be manually moved to release the locked state, thereby separating the front body 600 and the crossbeam 620. The front body 600 and the crossbeam 620 can be rotated relative to each other to a folded state, so as to facilitate storage.

[0058] The front body 600 may have a first protrusion 630 on the side of its rear end, and the crossbeam 620 may have a second protrusion 640 on the side of its front end. The first protrusion 630 and the second protrusion 640 cooperate with each other and are connected by a pivot, so that the front body 600 and the crossbeam 620 form a stable hinge structure, which facilitates the switching between folding and unfolding.

[0059] The locking element is located on the other side of the first protrusion 630 and the second protrusion 640, and may include a latch 650 and a locking pin. The latch 650 is rotatably connected to the front frame 600. A corresponding latch groove is provided on the crossbeam 620. The latch 650 and the crossbeam 620 are respectively provided with locking pin holes. When the frame is in the unfolded state, the latch 650 can be rotated into the latch groove, thereby fixing the front frame 600 and the crossbeam 620. The locking pin holes on the latch 650 and the crossbeam 620 are correspondingly positioned, and the locking pin can be inserted into the corresponding locking pin holes on the crossbeam 620 and the latch 650, thereby fixing the position of the latch 650 and preventing accidental disengagement during riding. Understandably, the latch 650 can also be located on the crossbeam 620, with a corresponding latch slot on the front frame 600. Both the latch 650 and the front frame 600 have locking pin holes. When the frame is unfolded, the latch 650 can rotate and engage with the latch slot, thus securing the front frame 600 to the crossbeam 620. The locking pin holes on the latch 650 and crossbeam 620 correspond in position, and the locking pin can pass through the corresponding locking pin holes on the front frame 600 and latch 650, thus fixing the position of the latch 650 and preventing accidental disengagement during riding. When folding is required, simply pull out the locking pin, and the latch 650 will rotate out of the latch slot, unlocking the front frame 600 from the crossbeam 620, allowing the frame to be folded up for easy carrying and storage. The entire locking and unlocking process is simple to operate, and the structure is robust and reliable.

[0060] refer to Figure 1 and Figure 2 In some embodiments, the front end of the front body 600 may be provided with a fixed shaft 610 for mounting the lower part of the handlebar 800. The axis of the shock absorber 200 and the axis of the fixed shaft 610 may be parallel or substantially parallel, so that the shock absorber 200 and the front outer wall of the fixed shaft 610 at the front end of the front body 600 can maintain an appropriate distance, and at the same time, they can have a substantially consistent load-bearing direction when loaded.

[0061] refer to Figure 1 and Figure 2 In some embodiments, the rear end of the positioning member 100 can be connected to the upper end of the fixed shaft 610, the positioning member 100 can extend forward relative to the fixed shaft 610, and the second connection position 520 of the connector 500 can be rotatably connected to the rear side of the lower end of the fixed shaft 610, which makes it easier to rotate the fork 300 back and forth when assembling or disassembling the shock absorber 200.

[0062] Understandably, the frame may also include a rear frame 700 and a rear fork, with the rear frame 700 connected to the rear end of the crossbeam 620 and the rear fork connected to the rear frame 700, the lower end of which is used to connect to the rear wheel.

[0063] refer to Figure 1 and Figure 6The bicycle of this embodiment includes the aforementioned frame, as well as handlebars 800 and wheels. The lower part of the handlebars 800 is rotatably connected to the front of the front frame 600. For example, in some embodiments, the lower part of the handlebars 800 is rotatably connected about an axis to a fixed shaft 610 at the front of the front frame 600. The lower part of the front fork 300 is connected to the wheel. For example, the lower part of the handlebars 800 can be rotatably connected to the wheel axle via a bearing assembly, eliminating the need for a shock absorber 200 between the lower part of the front fork 300 and the wheel, thus effectively simplifying the structure between the front fork 300 and the wheel.

[0064] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A frame, characterized in that, include: Front body; A positioning component, the rear end of which is connected to the front vehicle body; A front fork is disposed below the positioning member along a first direction, and the front fork is provided with a mounting hole that extends through the first direction. A connecting shaft is connected to the front fork on the side of the mounting hole opposite to the positioning member; A shock absorber is located at the front of the front vehicle body. Along the first direction, the upper part of the shock absorber is rotatably connected to the front end of the positioning member about a first axis, and the lower part of the shock absorber passes through the mounting hole and is connected to the connecting shaft. The lower part of the shock absorber and the connecting shaft are fixed relative to each other along the first direction. A connector, one end of which is rotatably connected to the front fork via a connecting shaft about a second axis, and the other end of which is rotatably connected to the front body of the vehicle about a third axis; wherein the first axis, the second axis, and the third axis are parallel to each other and intersect the first direction.

2. The frame according to claim 1, characterized in that, The fork includes connecting rods arranged opposite each other and mounting portions connected between the connecting rods. The connecting rods are spaced apart to form a mounting space. The mounting portions are provided with mounting holes that extend from the mounting portions toward the positioning member to the mounting space. The connecting shaft is at least partially located within the mounting space, one end of the connector is located within the mounting space and connected to the connecting shaft; the lower part of the shock absorber is at least partially located within the mounting space and connected to the connecting shaft.

3. The frame according to claim 2, characterized in that, Each of the connecting rods is provided with a connecting hole along the second axis, and the two ends of the connecting shaft pass through the connecting holes of the two connecting rods respectively, and are respectively fixed relative to the corresponding connecting rods along the second axis.

4. The frame according to claim 2, characterized in that, Each of the connecting rods extends downward from the mounting portion along the first direction, and the lower end of the connecting rod is used to connect to the wheel.

5. The frame according to claim 1, characterized in that, The connector has a first connection position and a second connection position spaced apart from each other. The first connecting part is provided with connecting portions at intervals along the second axis, and each connecting portion is provided with a first through hole. The lower part of the shock absorber is provided with a second through hole, and the lower part of the shock absorber is located between the two connecting portions. The connecting shaft passes through the first through hole and the second through hole along the second axis. The second connection position is rotatably connected to the front vehicle body about the third axis.

6. The frame according to claim 1, characterized in that, The lower outer wall of the shock absorber is provided with a first guide surface extending downward from top to bottom and toward the centerline of the shock absorber, and a connecting end extending downward from the lower end of the first guide surface. The connecting end is provided with a second through hole passing through the second axis, and the connecting shaft passes through the second through hole. And / or, a second guide surface is provided at the opening of the mounting hole facing the positioning member, and the second guide surface extends from the upper end face of the fork downward toward the centerline of the mounting hole.

7. The frame according to claim 6, characterized in that, The shock absorber includes a first shaft, a second shaft, and a shock-absorbing assembly. The first shaft is sleeved on the upper end of the second shaft along the first direction. The upper part of the first shaft is rotatably connected to the positioning member. The lower part of the second shaft is provided with the first guide surface and the connecting end. The lower part of the second shaft passes through the mounting hole. The connecting end is connected to the connecting shaft. The shock-absorbing assembly is disposed between the first shaft and the second shaft.

8. The frame according to claim 1, characterized in that, The first direction is inclined relative to the vertical direction, and the shock absorber extends forward from top to bottom.

9. The frame according to claim 1, characterized in that, The frame also includes a crossbeam and a locking mechanism, and the front body is rotatably connected to the crossbeam so that the frame can switch between a folded state and an unfolded state. In the unfolded state, the rear end of the front vehicle body abuts against the front end of the crossbeam, and the locking member is used to detachably connect the front vehicle body and the crossbeam in the unfolded state to lock the relative position of the front vehicle body and the crossbeam. The locking element, when driven, can unlock the front body and the crossbeam, allowing the front body and the crossbeam to rotate relative to each other to the folded state.

10. A bicycle, characterized in that, include: The vehicle frame as claimed in any one of claims 1 to 9; Handlebars, the lower part of which is rotatably connected to the front body of the vehicle; A wheel, which is connected to the lower part of the front fork.

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