CN215436771U - Shock-proof front fork for shared bicycle and shared bicycle - Google Patents

Abstract

The embodiment of the application provides a shock-absorbing front fork and a sharing bicycle, wherein the shock-absorbing front fork comprises a vertical pipe, an outer pipe and an inner pipe. The outer pipe is in an inverted U shape, and one end of the vertical pipe is connected to the top end of the outer pipe; the bottom of outer tube all has the opening, be equipped with well core rod along its axial fixity in the outer tube, the cover is equipped with the elastic component on well core rod, the inner tube passes through the opening is worn to locate in the outer tube, and, the top of elastic component connect in the outer tube, the bottom of elastic component with interior union coupling. The utility model provides a front fork of moving away to avoid possible earthquakes for sharing bicycle that this application embodiment provided adopts the outer tube of falling U-shaped, the outer tube with the inner tube passes through the elastic component is even. Shared bicycle is at the in-process of riding, the front fork that shocks resistance can pass through the deformation of elastic component cushions the impact force of ground to shared bicycle, improves the experience of riding of driving.

Description

Shock-proof front fork for shared bicycle and shared bicycle

Technical Field

The application belongs to the technical field of sharing equipment, and particularly relates to a shock-proof front fork for a sharing bicycle and the sharing bicycle.

Background

In recent years, with the rapid development of internet technology and intelligent mobile terminals, a self-service rental-type shared bicycle service has developed into a convenient and efficient travel service. When a user selects which transportation mode to perform short-distance movement, the user often selects a shared bicycle as a transportation tool. Since the shared bicycle is directly faced by a large number of users, for example, the same shared bicycle needs to serve a plurality of different users in a short time, the riding comfort of the shared bicycle is closely related to the use experience of the large number of users.

And each part structure of traditional shared bicycle is on the hard side, for example the frame structure of traditional shared bicycle is on the hard side, in the long-time in-process of riding of user, especially when meetting the condition that the road surface is uneven. The shared bicycle has the advantages that the shared bicycle can greatly jolt, so that the structure of the shared bicycle is easily damaged, and the maintenance cost of the shared bicycle is increased; and on the other hand, the riding experience of the user is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present application is to provide a new solution for a suspension fork of a shared bicycle and a shared bicycle.

According to a first aspect of the present application, there is provided a suspension front fork for a shared bicycle, comprising:

a vertical tube;

the outer pipe is in an inverted U shape, the vertical pipe is connected to the top end of the outer pipe, openings are formed in the bottom end of the outer pipe, a central rod is fixed in the outer pipe along the axial direction of the outer pipe, and an elastic piece is sleeved on the central rod;

the inner pipe penetrates through the outer pipe through the opening, the top end of the elastic piece is connected into the outer pipe, and the bottom end of the elastic piece is connected with the inner pipe;

the bottom end of the inner pipe is connected with a hook claw, and a rotation stopping groove is formed in the hook claw;

the anti-rotation slot is configured to mate with an anti-rotation component on the front wheel of the shared bicycle.

Optionally, the outer tube comprises a first outer tube and a second outer tube which are symmetrically arranged, the vertical tube is connected between the top end of the first outer tube and the top end of the second outer tube, and the openings comprise a first opening at the bottom end of the first outer tube and a second opening at the bottom end of the second outer tube;

the central rod comprises a first central rod and a second central rod, the elastic parts comprise a first elastic part and a second elastic part, the first elastic part is sleeved on the first central rod and is jointly positioned in the first outer tube, and the second elastic part is sleeved on the second central rod and is jointly positioned in the second outer tube;

the inner tube includes first inner tube and second inner tube, the top of first inner tube with the bottom of first elastic component is connected, the top of second inner tube with the bottom of second elastic component is connected.

Optionally, the first central rod coincides with a central axis of the first outer tube, and the second central rod coincides with a central axis of the second outer tube.

Optionally, a fixing plate is arranged in the outer tube, a threaded through hole is formed in the fixing plate, and external threads matched with the threaded through hole are arranged on the periphery of the central rod.

Optionally, the top end of the central rod has a rod cap, the central rod passes through the threaded through hole, and a gasket is sandwiched between the rod cap and the fixing plate.

Optionally, the elastic member further comprises a flexible sleeve, the flexible sleeve is sleeved on the central rod and clamped between the elastic member and the central rod.

Optionally, a positioning plate is fixed to the top end of the inner tube, a positioning through hole is formed in the positioning plate, and the central rod penetrates through the positioning through hole in a movable mode.

Optionally, an annular groove is formed in the opening, and a sealing ring is arranged in the annular groove.

Optionally, a C-shaped buckle is arranged in the annular groove, and a sliding sleeve is arranged between the inner pipe and the outer pipe;

the C-shaped buckle is configured to clamp the sliding sleeve between the inner tube and the outer tube.

Optionally, a sleeve is arranged at the top end of the outer pipe, and the vertical pipe is inserted into the sleeve.

According to a second aspect of the present application, there is provided a shared bicycle comprising a frame, a front wheel and the suspension front fork of the first aspect;

one end of the shock-absorbing front fork is connected to the frame, and the other end of the shock-absorbing front fork is connected to the front wheel.

Optionally, a rotation stopping column is arranged on the front wheel;

the rotation stopping column penetrates through the rotation stopping groove and is matched with the rotation stopping groove in a rotation stopping way.

Optionally, one side of the sleeve close to the frame is provided with a limiting block, the frame comprises a head pipe, and the limiting block is in limiting fit with the head pipe under the condition that the shock-absorbing front fork is in rotation.

One technical effect of the embodiment of the application is as follows:

the embodiment of the application provides a front fork of moving away to avoid possible earthquakes for sharing bicycle, the front fork of moving away to avoid possible earthquakes includes standpipe, outer tube and inner tube. The utility model provides a front fork of moving away to avoid possible earthquakes for sharing bicycle adopts the outer tube of the shape of falling the U, be equipped with well core rod in the outer tube along its axial fixity, the cover is equipped with the elastic component on well core rod, the inner tube is worn to locate in the outer tube, the outer tube with the inner tube passes through the elastic component even. Shared bicycle is at the in-process of riding, the front fork of taking shelter from can pass through the deformation of elastic component cushions the impact force of ground to shared bicycle, especially when riding on uneven road surface, the front fork of taking shelter from can weaken the impact force that rides passerby and receive, improves the experience of riding of driving.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a front view of a suspension fork for a shared bicycle according to an embodiment of the present disclosure;

FIG. 2 is a side view of a suspension front fork for a shared bicycle according to an embodiment of the present application;

FIG. 3 is a schematic view of a suspension fork for a bicycle according to an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is a schematic structural diagram of a shared bicycle according to an embodiment of the present application;

fig. 6 is a schematic partial structure diagram of a shared bicycle according to an embodiment of the present application.

Wherein: 1-a vertical pipe; 2-an outer tube; 21-a first outer tube; 22-a second outer tube; 3-a central rod; 31-a first center pole; 32-a second center pole; 4-an elastic member; 41-a first elastic member; 42-a second elastic member; 5-inner tube; 51-a first inner tube; 52-a second inner tube; 6-flexible sleeve; 7-fixing the plate; 8-a gasket; 9-positioning plate; 10-an annular groove; 11-a sealing ring; 12-C-shaped buckle; 13-a sliding sleeve; 14-hook claw; 141-rotation stopping grooves; 15-a cannula; 16-a limiting block; 17-assembly holes;

101-front wheel; 102-rotation stop column.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1-6, embodiments of the present application provide a suspension front fork for a shared bicycle, the suspension front fork comprising:

a standpipe 1, an outer pipe 2 and an inner pipe 5.

Referring to fig. 1, the outer tube 2 is in an inverted U shape, one end of the vertical tube 1 is connected to the top end of the outer tube 2, and the other end of the vertical tube 1 is generally connected to a frame of a shared bicycle; the bottom of outer tube 2 all has the opening, be equipped with well core rod 3 along its axial fixity in the outer tube 2, well core rod 3 goes up the cover and is equipped with elastic component 4, inner tube 5 passes through the opening is worn to locate in the outer tube 2, and, the top of elastic component 4 connect in the outer tube 2, the bottom of elastic component 4 with inner tube 5 is connected. That is, the outer tube 2 and the inner tube 5 are connected by the elastic member 4. When the shared bicycle is ridden, the outer tube 2 and the inner tube 5 can move relatively, so that the elastic part 4 can be switched between a compression state and an extension state, and the elastic deformation of the elastic part 4 can provide a good damping effect for the shared bicycle; while the central rod 3 can provide a compression or extension guiding path for the elastic element 4, ensuring the stability of the deformation of the elastic element 4.

Referring to fig. 2, 5 and 6, a hook claw 14 is connected to the bottom end of the inner tube 5, a rotation stopping groove 141 is formed in the hook claw 14, and the rotation stopping groove 141 is matched with a rotation stopping component on a front wheel of the shared bicycle. The shock-absorbing front fork is generally characterized in that one end of the shock-absorbing front fork is connected to a frame, for example, a handle assembly of the frame, the other end of the shock-absorbing front fork is connected to a front wheel, and the arrangement of the upper rotary groove 141 on the hook claw 14 can prevent the shock-absorbing front fork from rotating relative to the front wheel of the shared bicycle, so that the shock-absorbing front fork and the front wheel of the shared bicycle are prevented from being rubbed and collided.

In addition, referring to fig. 1 and 3, when the outer tube 2 is in an inverted U-shape, the shoulder (the position where the curvature of the outer tube 2 is large) of the outer tube 2 is in an integral arc-shaped structure, so that a separate structure of the conventional shoulder of the outer tube is avoided. The shoulder-integrated outer pipe 2 improves the integrity and the compact structure of the outer pipe 2 on one hand, and can improve the convenience of the maintenance and the replacement of the outer pipe 2 on the other hand.

The utility model provides a front fork of moving away to avoid possible earthquakes for sharing bicycle adopts the outer tube 2 of the shape of falling the U, be equipped with well core rod 3 along its axial fixity in the outer tube 2, well core rod 3 goes up the cover and is equipped with elastic component 4, inner tube 5 wears to locate in the outer tube 2, outer tube 2 with inner tube 5 passes through elastic component 4 links. Shared bicycle is at the in-process of riding, the front fork of shock attenuation can pass through the impact force of elastic component 4 deformation buffering ground to shared bicycle, especially when riding on the unevenness road surface, the front fork of shock attenuation rides the impact force that passerby received, has avoided long-term impact to ride numb sense that the driving arm brought, improves the experience of riding the driving.

Alternatively, referring to fig. 1 and 3, the outer tube 2 comprises a first outer tube 21 and a second outer tube 22 which are symmetrically arranged, one end of the vertical tube 1 is connected between the top end of the first outer tube 21 and the top end of the second outer tube 22, and the openings comprise a first opening at the bottom end of the first outer tube 21 and a second opening at the bottom end of the second outer tube 22;

the center rod 3 comprises a first center rod 31 and a second center rod 32, the elastic member 4 comprises a first elastic member 41 and a second elastic member 42, the first elastic member 41 is sleeved on the first center rod 31 and is commonly located in the first outer tube 21, that is, the first elastic member 41 and the first center rod 31 are both located in the first outer tube 21; the second elastic member 42 is sleeved on the second central rod 32 and is located in the second outer tube 22 together, that is, the second elastic member 42 and the second central rod 32 are both located in the second outer tube 22.

The inner tube 5 includes a first inner tube 51 and a second inner tube 52, a top end of the first inner tube 51 is connected to a bottom end of the first elastic member 41, and a top end of the second inner tube 52 is connected to a bottom end of the second elastic member 42.

Specifically, since the top end of the elastic member 4 is connected inside the outer tube 2, that is, the top end of the first elastic member 41 is connected inside the first outer tube 21, the top end of the second elastic member 42 is connected inside the second outer tube 22. Elastic component 4 can be spring unit or elastic plastomers such as elastic plastic and elastic rubber, elastic component 4 is under the condition of spring unit, and spring unit's top can pass through spring screw connect in outer tube 2, spring unit's bottom can pass through spring screw connect in 5 tops of inner tube, spring unit's elastic deformation can be with the energy conversion that ground brought the impact force of sharing bicycle to spring unit's elastic deformation ability, reduces the impact of ground to sharing bicycle and rider. In addition, when the elastic part 4 is a spring assembly, the spring assembly can also be a structure formed by cross combination of double springs or series connection of an upper group of springs and a lower group of springs, so that the deformation stability and the service life of the spring assembly are improved, and the deformation degree of the spring assembly is reduced.

Alternatively, referring to fig. 1 and 2, the first central rod 31 coincides with the central axis of the first outer tube 21, that is, the first central rod 31 is disposed coaxially with the first outer tube 21; the second central rod 32 coincides with the central axis of the second outer tube 22, i.e. the second central rod 32 is arranged coaxially with the second outer tube 22.

Specifically, in the case that the first center rod 31 is arranged coaxially with the first outer tube 21, a first annular gap of the same width may be formed between the first center rod 31 and the first outer tube 21, and the first annular gap may provide sufficient space for arranging the first elastic element 41; more importantly, the first annular gap with the same width can match the first elastic element 41 with the first annular gap, so that the radial distance between any position of the first elastic element 41 and the first central rod 31 is equal, and the radial distance between any position of the first elastic element 41 and the corresponding position on the first outer tube 21 is equal, thereby improving the stability of the deformation of the first elastic element 41 on the basis of providing sufficient setting space for the first elastic element 41. Correspondingly, under the condition that the second central rod 32 and the second outer tube 22 are coaxially arranged, a circle of second annular gap with the same width can be formed between the second central rod 32 and the second outer tube 22, and the second annular gap can provide a sufficient space for the arrangement of the second elastic element 42, which is not described herein again.

Optionally, referring to fig. 1 and 2, a fixing plate 7 is disposed in the outer tube 2, a threaded through hole is disposed on the fixing plate 7, and an external thread matched with the threaded through hole is disposed on the peripheral side of the central rod 3.

Specifically, the external screw thread can set up in the week side on 3 upper portions of well core rod, the upper portion of well core rod 3 is wearing to locate when in the screw thread through-hole, through the external screw thread with the cooperation of screw thread through-hole, can realize well core rod 3 with the dismantlement of fixed plate 7 is connected. When the central rod 3 needs to be maintained or replaced, the central rod 3 can be conveniently detached from the fixing plate 7, and the stable exertion of the guiding effect of the central rod 3 is ensured.

Optionally, referring to fig. 1, the top end of the central rod 3 has a rod cap, the central rod 3 passes through the threaded through hole, and a gasket 8 is sandwiched between the rod cap and the fixing plate 7.

Specifically, the gasket 8 may be a metal gasket or an elastic gasket such as rubber, and the number of the gaskets 8 may be one or more. In the case where the center rod 3 is connected to the fixing plate 7, the gasket 8 between the rod cap and the fixing plate 7 can improve the compactness of the connection between the center rod 3 and the fixing plate 7, and the distance between the rod cap and the fixing plate 7 can be adjusted by adjusting the thickness or the number of the gaskets 8, that is, the positional flexibility of the connection of the center rod 3 to the fixing plate 7 is improved.

Optionally, with reference to fig. 1 and 2, the outer tube 2 has a fitting hole 17 opposite the central rod 3.

Specifically, outer tube 2 is including being the outer tube main part of vertical setting, well core rod 3 with elastic component 4 sets up in the outer tube main part jointly, outer tube 2 takes place to buckle at the top of outer tube main part, that is outer tube main part can with the shoulder of outer tube 2 is relative, makes well core rod 3 with the shoulder of outer tube 2 is relative. The assembly hole 17 may be located at a shoulder of the outer tube 2, so that the center rod 3 can be inserted into and taken out of the outer tube 2, and operability of the threaded connection of the center rod 3 and the fixing plate 7 is improved.

In addition, the pilot hole 17 upper cover is equipped with the closing plate, the closing plate can be sheetmetal or plastic sheet, the closing plate can include the closing cap and follow the arch of extending on the closing cap, protruding with the cooperation of pilot hole 17 joint. The outer tube 2 is capable of pulling out the sealing piece from the fitting hole 17 when the center rod 3 and the elastic member 4 are fitted; when the assembly of the central rod 3 and the elastic piece 4 is completed, the protrusion can be clamped on the assembly hole 17. In addition, the appearance of the flap may be consistent with the appearance of the outer tube 2 to improve the integrity of the outer tube 2.

Optionally, referring to fig. 3, the suspension fork further includes a flexible sleeve 6, and the flexible sleeve 6 is sleeved on the central rod 3 and is sandwiched between the elastic member 4 and the central rod 3.

In particular, the flexible sheath 6 may be a PVC sheath or a rubber sheath. In order to ensure the structural strength of the central rod 3, the central rod 3 is generally a metal rod, and the elastic member 4 inevitably needs to rub and collide with the central rod 3 during deformation. The flexible sleeve 6 is arranged, so that the central rod 3 is in contact with the flexible sleeve 6, and the flexible sleeve 6 is in contact with the elastic piece 4, so that direct contact between the elastic piece 4 and the central rod 3 is avoided, and a good buffering effect is achieved on deformation of the elastic piece 4.

Optionally, referring to fig. 1, a positioning plate 9 is fixed at the top end of the inner tube 5, a positioning through hole is formed in the positioning plate 9, and the central rod 3 is movably disposed through the positioning through hole.

Specifically, in the process that the inner tube 5 moves relative to the outer tube 2, the inner tube 5 is switched between being close to the outer tube 2 or being far from the outer tube 2, and the positioning plate 9 is also driven to be close to or be far from the outer tube 2. The central rod 3 is matched with the positioning through hole on the positioning plate 9, so that the inner tube 5 can move along the central rod 3, and the moving guidance of the inner tube 5 is improved; accordingly, the positioning through hole can position the circumference of the central rod 3, and the offset of the central rod 3 is avoided.

Optionally, referring to fig. 3 and 4, an annular groove 10 is formed in the opening of the outer tube 2, and a sealing ring 11 is arranged in the annular groove 10.

Specifically, friction and collision are inevitably caused in the process of moving the inner pipe 5 relative to the outer pipe 2, the inner pipe 5 and the outer pipe 2 are generally made of metal materials, the structural stability and the service life of the inner pipe 5 and the outer pipe 2 are reduced due to long-time friction and collision, the influence on the inner pipe 5 and the outer pipe 2 caused by friction and collision can be greatly reduced through lubricating oil, and an oil seal structure is generally required to be arranged between the inner pipe 5 and the outer pipe 2 in order to ensure the sealing performance of the lubricating oil. Specifically, for example, the sealing ring 11 may be an oil seal ring such as a PVC oil seal ring or a rubber oil seal ring, the sealing ring 11 is clamped between the inner tube 5 and the outer tube 2, and the annular groove 10 may provide a good limit for the sealing ring 11, so as to improve the structural stability of the sealing ring 11.

Optionally, referring to fig. 4, a C-shaped buckle 12 is arranged in the annular groove 10, a sliding sleeve 13 is arranged between the inner tube 5 and the outer tube 2, and the sliding sleeve 13 can avoid direct contact between the inner tube 5 and the outer tube 2; the C-shaped buckle 12 is configured to clamp the sliding sleeve 13 between the inner tube 5 and the outer tube 2. Specifically, the sliding sleeve 13 may be a flexible sliding sleeve such as a nylon sliding sleeve, and the pressing of the C-shaped buckle 12 on the sliding sleeve 13 may push the sliding sleeve 13 tightly against the inner tube 5 and the outer tube 2, so as to prevent the sliding sleeve 13 from slipping off from between the inner tube 5 and the outer tube 2.

Optionally, referring to fig. 1 and 2, a sleeve 15 is disposed at the top end of the outer tube 2, and the vertical tube 1 is inserted into the sleeve 15.

Specifically, since the outer tube 2 may include a first outer tube 21 and a second outer tube 22 which are symmetrically arranged, and one end of the vertical tube 1 is connected to the top ends of the first outer tube 21 and the second outer tube 22, in order to improve the connection strength and stability between the vertical tube 1 and the outer tube 2, the sleeve 15 may be welded between the top end of the first outer tube 21 and the top end of the second outer tube 22, and the outer tube 2 and the sleeve 15 may constitute a stable integral structure. When the vertical pipe 1 is inserted into the sleeve 15, the connection strength and stability between the vertical pipe 1 and the outer pipe 2 can be improved.

Referring to fig. 5 and 6, the present embodiment provides a shared bicycle, which includes a frame, a front wheel 101 and the suspension fork;

one end of the shock-absorbing front fork is connected to the frame, and the other end of the shock-absorbing front fork is connected to the front wheel 101.

The embodiment of the application provides sharing bicycle adopts the outer tube 2 of the shape of falling the U, it has well core rod 3 to follow its axial fixity in the outer tube 2, well core rod 3 goes up the cover and is equipped with elastic component 4, inner tube 5 wears to locate in the outer tube 2, the outer tube 2 with inner tube 5 passes through elastic component 4 links. In the riding process of the shared bicycle, the shock-absorbing front fork can buffer the impact force of the ground to the shared bicycle through the deformation of the elastic piece 4, particularly when the shared bicycle is ridden on uneven road surfaces, the shock-absorbing front fork can weaken the impact force received by a rider, and the use experience of the shared bicycle is improved.

Optionally, referring to fig. 6, a rotation stopping column 102 is disposed on the front wheel 101, and the rotation stopping column 102 may be disposed along an axial direction of the front wheel 101;

the rotation stopping column 102 is inserted into the rotation stopping groove 141 and is in rotation stopping fit with the rotation stopping groove 141.

Specifically, when the other end of the suspension fork is connected to the front wheel 101, since the suspension fork is closer to the front wheel 101, and the elastic member 4 of the suspension fork needs to be frequently deformed, the front wheel 101 needs to be frequently rotated, and the suspension fork may collide with the rotating front wheel 101 (specifically, a relatively protruded drum brake disc on the front wheel 101) during the deformation process. The rotation stopping fit of the rotation stopping column 102 and the rotation stopping groove 141 can prevent the shock absorbing front fork from moving relative to the front wheel 101, and avoid the collision between the shock absorbing front fork and the front wheel 101.

Optionally, a limit block 16 is disposed on one side of the sleeve 15 close to the frame, the frame includes a head tube, and the limit block 16 is in limit fit with the head tube when the suspension fork rotates.

Specifically, the frame is generally connected to the suspension fork through a handlebar, and the handlebar can drive the suspension fork and the front wheel 101 to rotate together during riding of the shared bicycle. And stopper 16 on the front fork of moving away to avoid possible earthquakes with the spacing cooperation of head pipe, can avoid the front wheel 101 with the front fork of moving away to avoid possible earthquakes is for the turned angle of frame is too big, has avoided the brake cable winding to give the operational difficulty that rides passerby and bring simultaneously, has guaranteed to ride passerby's the experience of riding.

Alternatively, the shared bicycle may be a shared bicycle, an electric power assisted shared bicycle or a shared motorcycle.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims (13)

1. A suspension fork for a shared bicycle, comprising:

a standpipe (1);

the outer pipe (2) is in an inverted U shape, the vertical pipe (1) is connected to the top end of the outer pipe (2), openings are formed in the bottom end of the outer pipe (2), a central rod (3) is fixed in the outer pipe (2) along the axial direction of the outer pipe, and an elastic piece (4) is sleeved on the central rod (3);

the inner pipe (5) penetrates through the outer pipe (2) through the opening, the top end of the elastic part (4) is connected into the outer pipe (2), and the bottom end of the elastic part (4) is connected with the inner pipe (5);

the bottom end of the inner pipe (5) is connected with a hook claw (14), and the hook claw (14) is provided with a rotation stopping groove (141);

the anti-rotation slot (141) is configured to mate with an anti-rotation component on the front wheel of the shared bicycle.

2. The suspension fork of claim 1, wherein the outer tube (2) comprises a first outer tube (21) and a second outer tube (22) arranged symmetrically, the vertical tube (1) is connected between the top end of the first outer tube (21) and the top end of the second outer tube (22), and the openings comprise a first opening at the bottom end of the first outer tube (21) and a second opening at the bottom end of the second outer tube (22);

the center rod (3) comprises a first center rod (31) and a second center rod (32), the elastic part (4) comprises a first elastic part (41) and a second elastic part (42), the first elastic part (41) is sleeved on the first center rod (31) and is jointly positioned in the first outer tube (21), and the second elastic part (42) is sleeved on the second center rod (32) and is jointly positioned in the second outer tube (22);

the inner tube (5) comprises a first inner tube (51) and a second inner tube (52), the top end of the first inner tube (51) is connected with the bottom end of the first elastic piece (41), and the top end of the second inner tube (52) is connected with the bottom end of the second elastic piece (42).

3. The suspension fork of claim 2, wherein the first central rod (31) coincides with the central axis of the first outer tube (21) and the second central rod (32) coincides with the central axis of the second outer tube (22).

4. The suspension fork set forth in claim 1, wherein a fixing plate (7) is disposed in the outer tube (2), a threaded through hole is disposed on the fixing plate (7), and an external thread engaged with the threaded through hole is disposed around the central rod (3).

5. The suspension fork as set forth in claim 4, wherein the top end of the central rod (3) has a rod cap, the central rod (3) passes through the threaded through hole, and a washer (8) is interposed between the rod cap and the fixing plate (7).

6. The suspension fork set forth in claim 1, further comprising a flexible sleeve (6), wherein said flexible sleeve (6) is sleeved on said central rod (3) and sandwiched between said elastic member (4) and said central rod (3).

7. The suspension front fork as recited in claim 1 or 4, wherein a positioning plate (9) is fixed to the top end of the inner tube (5), a positioning through hole is formed in the positioning plate (9), and the central rod (3) is movably inserted into the positioning through hole.

8. The suspension fork of claim 1, wherein the opening forms an annular groove (10) therein, and wherein a seal ring (11) is disposed in the annular groove (10).

9. The suspension fork set forth in claim 8, wherein a C-shaped snap (12) is provided in the annular groove (10), and a sliding sleeve (13) is provided between the inner tube (5) and the outer tube (2);

the C-shaped buckle (12) is configured to clamp the sliding sleeve (13) between the inner tube (5) and the outer tube (2).

10. The suspension fork set forth in claim 1 wherein the top end of the outer tube (2) is provided with a sleeve (15), and the vertical tube (1) is inserted into the sleeve (15).

11. A bicycle sharing system comprising a frame, a front wheel (101) and a suspension fork as claimed in any one of claims 1 to 10;

one end of the shock-absorbing front fork is connected to the frame, and the other end of the shock-absorbing front fork is connected to the front wheel (101).

12. The sharing bicycle according to claim 11, characterized in that the front wheels (101) are provided with a rotation stop column (102);

the rotation stopping column (102) penetrates through the rotation stopping groove (141) and is matched with the rotation stopping groove (141) in a rotation stopping way.

13. The sharing bicycle according to claim 11, wherein a sleeve (15) is arranged at the top end of the outer tube (2), a limit block (16) is arranged at one side of the sleeve (15) close to the frame, the frame comprises a head tube, and the limit block (16) is in limit fit with the head tube under the condition that the shock-absorbing front fork rotates.

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