Seat tube and vehicle

Abstract

The embodiment of the utility model relates to a seat tube and a vehicle. The seat tube comprises a tube body and an elastic assembly. A sliding groove is formed in the pipe body in the axial direction of the pipe body. The elastic assembly comprises a sliding block, a first limiting piece, a second limiting piece, an abutting piece and an elastic piece. The sliding block is inserted into the sliding groove, and the sliding block can slide relative to the sliding groove in the direction from the groove opening to the groove bottom of the sliding groove. The first limiting piece is fixed to the sliding groove and arranged close to the groove opening. The abutting piece is arranged at the bottom of the sliding groove. The second limiting piece is fixed to the sliding block and located between the first limiting piece and the abutting piece, and the first limiting piece is used for limiting the second limiting piece; the elastic piece is arranged in the sliding groove, one end of the elastic piece is arranged on the sliding block, and the other end of the elastic piece is arranged on the second limiting piece. Through the seat tube, when the sliding block is subjected to the acting force of the seat cushion, the sliding block slides relative to the sliding groove, and the elastic piece is compressed or stretched, so that the damping function is achieved, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of transportation. BACKGROUND

[0002] With the development of transportation technology, various transportation tools appear on the market, and people can select appropriate transportation tools according to distance, personal preferences and other factors. Among them, small transportation tools such as bicycles or electric bicycles are often the common choice of people for short trips because of their environmental protection, flexibility and convenient parking.

[0003] Among the small transportation tools such as bicycles or electric bicycles, the seat tube is a crucial part, which is used to bear the seat cushion and the user on the seat cushion.

[0004] In the process of implementing the present application, the applicant of the present application finds that in order to increase the comfort of the user riding and improve the satisfaction of the consumer, it is necessary to increase the damping function when the user rides while sitting on the seat cushion. UTILITY MODEL CONTENT

[0005] In view of the above problems, the embodiment of the present application provides a seat tube and a transportation tool, which overcome the above problems or at least partially solve the above problems.

[0006] According to one aspect of the embodiment of the present application, a seat tube is provided, which comprises a pipe body and an elastic assembly; a sliding groove is provided in the pipe body along the axial direction of the pipe body; the elastic assembly comprises a sliding block, a first limiting piece, a second limiting piece, an abutting piece and an elastic piece; the sliding block is inserted into the sliding groove, and the sliding block can slide relative to the sliding groove from the direction of the groove opening to the groove bottom; the first limiting piece is fixed to the sliding groove, and the first limiting piece is arranged close to the groove opening; the abutting piece is arranged at the groove bottom of the sliding groove; the second limiting piece is fixed to the sliding block, and the second limiting piece is located between the first limiting piece and the abutting piece, and the first limiting piece is used to limit the second limiting piece; the elastic piece is arranged in the sliding groove, one end of the elastic piece is arranged in the sliding block, and the other end of the elastic piece is arranged in the second limiting piece.

[0007] In an optional manner, the abutting piece is provided with a material-reducing through hole.

[0008] In an optional manner, the material-reducing through hole is provided along the axial direction of the pipe body, and the number of the material-reducing through holes is three, and the three material-reducing through holes are distributed on the pipe body.

[0009] In an optional manner, the cross section of the material-reducing through hole is in the shape of a sector.

[0010] In an alternative mode, the pipe body comprises a main body and a connecting head, the main body and the connecting head are screwed; the sliding slot penetrates through the main body and the connecting head; one end of the sliding block is located in the main body, and the other end of the sliding block is located in the connecting head; the first limiting piece is located in the connecting head; and the second limiting piece is located in the main body.

[0011] In an alternative mode, the second limiting piece is a grinding sleeve.

[0012] In an alternative mode, the grinding sleeve is provided with a receiving groove, the sliding block is received in the receiving groove, and the elastic assembly further comprises a screw, the screw penetrates through the groove bottom of the receiving groove, and the screw locks the grinding sleeve and the sliding block.

[0013] In an alternative mode, the elastic assembly further comprises an elastic pad, the elastic pad is arranged around the sliding block, and the elastic pad is located between the first limiting piece and the second limiting piece.

[0014] In an alternative mode, the elastic piece is a spring.

[0015] According to an aspect of the embodiments of the present application, a vehicle is provided, comprising the seat pipe.

[0016] The embodiments of the present application have the following beneficial effects: a seat pipe is provided, comprising a pipe body and an elastic assembly; along the axial direction of the pipe body, the pipe body is provided with a sliding slot; the elastic assembly comprises a sliding block, a first limiting piece, a second limiting piece, an abutting piece and an elastic piece; the sliding block is inserted into the sliding slot, and the sliding block can slide relative to the sliding slot in the direction from the slot opening to the slot bottom; the first limiting piece is fixed to the sliding slot, and the first limiting piece is arranged close to the slot opening; the abutting piece is arranged at the slot bottom of the sliding slot; the second limiting piece is fixed to the sliding block, and the second limiting piece is located between the first limiting piece and the abutting piece, and the first limiting piece is used for limiting the second limiting piece; and the elastic piece is arranged in the sliding slot, one end of the elastic piece is arranged in the sliding block, and the other end of the elastic piece is arranged in the second limiting piece. Through the seat pipe, when the sliding block is subjected to the action force of the seat cushion, the sliding block slides relative to the sliding slot, and then the elastic piece is compressed or stretched, thereby playing a damping function and improving the user experience.

[0017] In addition, at least part of the sliding slot is actually the internal pipeline of the seat pipe. Since it is necessary to adapt to users of different heights to adjust the height of the seat cushion supported by the seat pipe, generally, the seat pipe has a certain length, and due to the arrangement of the abutting piece, the length of the elastic piece can be saved, thereby facilitating the effective elasticity of the elastic piece and the use reliability of the elastic piece. BRIEF DESCRIPTION OF DRAWINGS

[0018] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which will help understand various aspects of the embodiments. The purpose and nature of these figures will become more apparent to which skilled in the art from the following detailed description. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The use of any of the following terms throughout the specification is meant to include all extensions and variations of the term that are functionally equivalent.

[0019] Figure 1 is a schematic view of a damping seat provided by an embodiment of the present application;

[0020] Figure 2 is a schematic view of a damping seat provided by an embodiment of the present application, along the direction of the arrow A; Figure 1 is a sectional view along the direction of the arrow P;

[0021] Figure 3 is a schematic view of a damping seat provided by an embodiment of the present application, along the direction of the arrow A;

[0022] Figure 4 is a schematic view of another implementation of a damping seat provided by an embodiment of the present application;

[0023] Figure 5 is a schematic view of another implementation of a damping seat provided by an embodiment of the present application;

[0024] Figure 6 is a schematic view of a seat tube provided by an embodiment of the present application;

[0025] Figure 7 is a schematic view of a seat tube provided by an embodiment of the present application, along the direction of the arrow Q; Figure 6 is a sectional view along the direction of the arrow Q.

[0026] Figure 8 is a schematic view of an abutting member provided by an embodiment of the present application. DETAILED DESCRIPTION

[0027] For the purpose of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the application. It will, nevertheless, be understood that no limitation of the scope of the application is intended by illustrative discussion of the embodiments. The terms used throughout this specification are intended to have their broadest meaning unless otherwise limited by context.

[0028] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meanings as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned in this specification are herein incorporated by reference in their entirety for the purpose of describing and disclosing, for example, the methodologies described in such publications, which might provide useful background to the present application.

[0029] Referring to Figure 1 and Figure 2 The damping seat 100 provided by the embodiments of the present application comprises a seat pipe 10, a clamp head 20, a first connecting rod 30 and a second connecting rod 40. The seat pipe 10 comprises a pipe body 11, a connecting part 12 and an elastic assembly 13. The connecting part 12 is connected to the pipe body 11 and is along the axial direction D1 of the pipe body 11. The pipe body 11 is provided with a sliding groove 11s, and the elastic assembly 13 is arranged in the sliding groove 11s. One end of the first connecting rod 30 is rotatably connected to the middle part 23 of the clamp head 20, and the other end of the first connecting rod 30 is rotatably connected to the end of the connecting part 12 away from the pipe body 11. One end of the second connecting rod 40 is rotatably connected to the end of the connecting part 12 close to the pipe body 11. One end 21 of the clamp head 20 is used for mounting a cushion, and the other end 22 of the clamp head 20 is rotatably connected to the other end of the second connecting rod 40. The first connecting rod 30 is provided with a pressing piece 31, and the pressing piece 31 abuts against the elastic assembly 13. Through the damping seat 100, when a user sits on the cushion, when subjected to vibration, the middle part 23 of the clamp head 20 rotates relative to the first connecting rod 30, the other end 22 of the clamp head 20 rotates relative to the second connecting rod 40, and the first connecting rod 30 and the second connecting rod 40 both rotate relative to the connecting part 12 of the seat pipe 10, so that the pressing piece 31 of the first connecting rod 30 acts on the elastic assembly 13 to make the elastic assembly 13 move relative to the sliding groove 11s, thereby realizing the damping function and improving the user experience.

[0030] It is worth noting that the first connecting rod 30 is tightly connected between one end and the middle part 23 of the clamp head 20, and the other end of the first connecting rod 30 is tightly connected to the end of the connecting part 12 away from the pipe body 11. One end of the second connecting rod 40 is tightly connected to the end of the connecting part 12 close to the pipe body 11, and the other end 22 of the clamp head 20 is tightly connected to the other end of the second connecting rod 40, so that when not subjected to vibration, the first connecting rod 30, the second connecting rod 40 and the other end 22 of the clamp head 20 work together to support the cushion arranged at one end 21 of the clamp head 20 on the seat pipe 10.

[0031] It can be understood that the elastic assembly 13 is movable relative to the sliding groove 11s in the direction from the slot opening to the slot bottom of the sliding groove 11s. The elastic assembly 13 can be only a spring, or the elastic assembly 13 is only a rubber pad with elasticity.

[0032] It is worth noting that in some embodiments, referring to Figure 3 , the number of the second connecting rods 40 is two, the two second connecting rods 40 are oppositely arranged on two sides of the pipe body 11, and the elastic assembly 13 is located between the two second connecting rods 40. Through the arrangement of the two second connecting rods 40, one end of each of the two second connecting rods 40 is rotationally connected to one end of the connecting portion 12 close to the pipe body 11, and the other end of each of the two second connecting rods 40 is rotationally connected to the other end 22 of the chuck 20. Through the arrangement of the two second connecting rods 40, the force balance is facilitated.

[0033] It is worth noting that in some embodiments, referring to Figure 2 and Figure 3 , the middle portion 23 of the chuck 20 is provided with an assembly hole 23s, the damping seat 100 further comprises a connecting rivet column 50, the connecting rivet column 50 is arranged on the middle portion 23 of the chuck 20, the connecting rivet column 50 penetrates through the assembly hole 23s, and one end of the first connecting rod 30 is rotationally connected to the connecting rivet column 50. By providing the assembly hole 23s in the middle portion 23 of the chuck 20, on the one hand, one end of the first connecting rod 30 is rotationally connected to the middle portion 23 of the chuck 20; on the other hand, through the arrangement of the assembly hole 23s, a part of one end of the first connecting rod 30 can be accommodated in the assembly hole 23s, that is, a part of one end of the first connecting rod 30 shares a certain space with the middle portion 23 of the chuck 20, so that the damping seat 100 occupies a small space and has a compact structure; on the other hand, through the arrangement of the assembly hole 23s, the weight of the chuck 20 can be effectively reduced, and the lightweight of the damping seat 100 is facilitated.

[0034] It is worth noting that in some embodiments, the connecting portion 12 is connected to one side of the pipe body 11, the connecting portion 12 extends along the axial direction D1 of the pipe body 11, and the elastic assembly 13 is located between the connecting portion 12 and the other end 22 of the chuck 20. Through this arrangement, the elastic assembly 13 is arranged in the space formed between the connecting portion 12 and the other end 22 of the chuck 20, so that the damping seat 100 occupies a small space, the components of the damping seat 100 are reasonably arranged in space, the damping seat 100 has a compact structure, and the damping seat 100 has a wide range of applications.

[0035] It is worth noting that in some embodiments, the elastic assembly 13 protrudes from the second connecting rod 40 along the axial direction D1 of the pipe body 11. In this way, the pressing piece 31 of the first connecting rod 30 does not need to be designed with a large size, and the pressing piece 31 can abut against the elastic assembly 13, facilitating the abutment of the pressing piece 31 against the elastic assembly 13 and facilitating the pressing of the pressing piece 31 against the elastic assembly 13, thereby ensuring the pressing strength of the pressing piece 31 against the elastic assembly 13.

[0036] It is worth noting that in some embodiments, the pressing piece 31 is provided with a circular arc surface 311 that rotates against the elastic assembly 13. When subjected to vibration, the middle portion 23 of the chuck 20 rotates relative to the first connecting rod 30, the other end 22 of the chuck 20 rotates relative to the second connecting rod 40, and the first connecting rod 30 and the second connecting rod 40 both rotate relative to the connecting portion 12 of the seat pipe 10, so that the circular arc surface 311 of the pressing piece 31 of the first connecting rod 30 rotates relative to the elastic assembly 13 and presses the elastic assembly 13, or is pushed up by the elastic force of the elastic assembly 13, thereby achieving the shock absorption function. Due to the provision of the circular arc surface 311, the smoothness of the pressing piece 31 acting on the elastic assembly 13 is improved, and the wear of the pressing piece 31 on the elastic assembly 13 is reduced, thereby ensuring the service life of the elastic assembly 13.

[0037] One end 21 of the chuck 20 is used for the seat cushion. It is worth noting that in some embodiments, the one end 21 of the chuck 20 includes a fixed piece 211, a movable piece 212, and a bolt 213, the sliding hole is arranged in the fixed piece 211, the fixed piece 211 is connected with the other end 22 of the chuck 20, one side of the movable piece 212 is provided with a connecting piece 2121, the connecting piece 2121 is rotatably inserted into the first through slot 2111; the other side of the fixed piece 211 is provided with a first screw hole 2112, the other end of the movable piece 212 is provided with a second screw hole 2122, and the bolt 213 is locked in the first screw hole 2112 and the second screw hole 2122; the middle portion of the fixed piece 211 is provided with a second through slot 2113, and the middle portion of the movable piece 212 is provided with a third through slot 2123, the first through slot 2111 and the second through slot 2113 jointly form a mounting hole 21s, and the mounting hole 21s is used for mounting the seat cushion. In this way, when it is necessary to install the seat cushion at the one end 21 of the chuck 20, only the bolt 213 needs to be loosened, the connecting piece 2121 is slid out along the first sliding slot 11s, the seat cushion is installed in the mounting hole 21s, then the connecting piece 2121 is slid and inserted into the first sliding slot 11s along the first sliding slot 11s, and the bolt 213 is locked, so that the seat cushion can be locked at the one end 21 of the chuck 20.

[0038] In some embodiments, the mounting hole 21s is further provided with an elastic clamping piece 60, thereby adapting to the size requirements of different seat cushions.

[0039] It is worth mentioning that in some embodiments, referring to Figure 4 , one end 21 of the clamp head 20 is not limited to the above structure, and can also have other implementation forms. For example, the shock-absorbing seat 100 further comprises a stud 20a, a first locking piece 20b, and a second locking piece 20c. The stud 20a penetrates the first locking piece 20b, one end 21 of the clamp head 20, and the second locking piece 20c in sequence. The first locking piece 20b has a first gap 20g1 with the clamp head 20, and the second locking piece 20c has a second gap 20g2 with the clamp head 20. The first gap 20g1 and the second gap 20g2 are used for cushion mounting. Through this setting, when the cushion is clamped in the first gap 20g1 and the second gap 20g2, and then the first locking piece 20b and the second locking piece 20c are locked, the cushion can be locked to one end 21 of the clamp head 20.

[0040] It is worth mentioning that in some embodiments, referring to Figure 5 , one end 21 of the clamp head 20 is not limited to the above structure, and can also have other implementation forms. For example, the shock-absorbing seat 100 further comprises a stud 20a, a first locking piece 20b, and a second locking piece 20c. The stud 20a penetrates the first locking piece 20b, one end 21 of the clamp head 20, and the second locking piece 20c in sequence. The first locking piece 20b has a first gap 20g1 with the clamp head 20, and the second locking piece 20c has a second gap 20g2 with the clamp head 20. The first gap 20g1 and the second gap 20g2 are used for cushion mounting. Through this setting, when the cushion is clamped in the first gap 20g1 and the second gap 20g2, and then the first locking piece 20b and the second locking piece 20c are locked, the cushion can be locked to one end 21 of the clamp head 20.

[0041] Among them, the connecting column 70a can be a bolt, a stud, etc.

[0042] In addition, in some embodiments, the connecting portion 12 of the seat pipe 10, the elastic assembly 13, the middle portion 23 of the clamp head 20, and the assembly portion 211a are arranged in sequence. Through this setting, when subjected to vibration, the pressing piece 31 of the first connecting rod 30 forms a fulcrum, facilitating the buffering of the acting force when subjected to vibration through the elastic assembly 13.

[0043] For the above-mentioned seat pipe 10, the seat pipe 10 is not limited to the above structure, and can also have other setting forms. For example, referring to Figure 6 and Figure 7The seat pipe 10 comprises a pipe body 11 and an elastic assembly 13; the pipe body 11 is provided with a sliding groove 11s in the axial direction D1 of the pipe body 11; the elastic assembly 13 comprises a sliding block 131, a first limiting piece 132, a second limiting piece 133, an abutting piece 134 and an elastic piece 135; the sliding block 131 is inserted into the sliding groove 11s and can slide relative to the sliding groove 11s from the direction of the groove opening to the groove bottom; the first limiting piece 132 is fixed to the sliding groove 11s and is arranged close to the groove opening; the abutting piece 134 is arranged at the groove bottom of the sliding groove 11s; the second limiting piece 133 is fixed to the sliding block 131 and is located between the first limiting piece 132 and the abutting piece 134, and the first limiting piece 132 is used for limiting the second limiting piece 133; the elastic piece 135 is arranged in the sliding groove 11s, one end of the elastic piece 135 is arranged in the sliding block 131, and the other end of the elastic piece 135 is arranged in the second limiting piece 133. Through the seat pipe 10, when the sliding block 131 is subjected to the force of the cushion, the sliding block 131 slides relative to the sliding groove 11s, and then the elastic piece 135 is compressed or stretched, thereby playing a shock-absorbing function and improving the user experience.

[0044] In addition, at least part of the sliding groove 11s is actually an internal pipeline of the seat pipe 10. Since it is necessary to adapt to users of different heights and thus adjust the height of the cushion supported by the seat pipe 10, generally, the seat pipe 10 has a length that is relatively long. Due to the arrangement of the abutting piece 134, the length of the elastic piece 135 can be saved, thereby facilitating the maintenance of the effective elasticity of the elastic piece 135 and taking into account the use reliability of the elastic piece 135.

[0045] It can be understood that, through the arrangement of the first limiting piece 132 and the second limiting piece 133, when the sliding block 131 slides in the direction from the groove bottom to the groove opening of the sliding groove 11s, the second limiting piece 133 fixed on the sliding block 131 is limited by the first limiting piece 132, and the sliding block 131 can be prevented from rushing out of the sliding groove 11s.

[0046] It is worth noting that, in some embodiments, referring to Figure 7 and Figure 8 , the abutting piece 134 is provided with a material-reducing through hole 134s. Through the arrangement of the material-reducing through hole 134s, the abutting piece 134 can not only play a supporting role on the elastic piece 135, but also save materials and reduce the weight of the seat pipe 10, thereby achieving the lightness of the seat pipe 10.

[0047] The abutting piece 134 can be arranged in various ways, for example, the number of material-reducing through holes (not shown in the figure) is multiple, and the multiple material-reducing through holes (not shown in the figure) are arranged in the axial direction D1 of the pipe body 11; or, in some embodiments, referring toFigure 7 and Figure 8 The material-reducing through holes 134s are arranged along the axial direction D1 of the pipe body 11, and the number of the material-reducing through holes 134s is three, and the three material-reducing through holes 134s are distributed on the pipe body 11. By arranging the three material-reducing through holes 134s, the elastic member 135 can be supported and the material can be reduced.

[0048] It is worth noting that in some embodiments, referring to Figure 7 and Figure 8 The cross-sectional shape of the material-reducing through holes 134s is a sector. Since the number of the material-reducing through holes 134s is three, the three material-reducing through holes 134s are distributed on the pipe body 11, and the cross-sectional shape of the material-reducing through holes 134s is a sector, so that the material-reducing through holes 134s can be arranged maximally, that is, the material can be reduced maximally, while the support for the elastic member 135 is taken into account.

[0049] It is worth noting that in some embodiments, referring to Figure 7 The pipe body 11 comprises a body 111 and a connecting head 112, and the body 111 and the connecting head 112 are screwed; the sliding groove 11s penetrates through the body 111 and the connecting head 112; one end of the sliding block 131 is located in the body 111, and the other end of the sliding block 131 is located in the connecting head 112; the first limiting member 132 is located in the connecting head 112; and the second limiting member 133 is located in the body 111. By screwing the body 111 and the connecting head 112, the body 111 and the connecting head 112 can be easily disassembled, so that the second limiting member 133 and the elastic member 135 arranged in the body 111 can be easily replaced.

[0050] It is worth noting that when the seat pipe 10 comprises the pipe body 11, the connecting portion 12 and the elastic assembly 13, the connecting head 112 is connected with the connecting portion 12.

[0051] It is worth noting that in some embodiments, the second limiting member 133 is a bushing. By arranging the bushing, the bushing surrounds the sliding block 131 and is fixed to the sliding block 131. When the bushing and the sliding block 131 slide relative to the sliding groove 11s, on the one hand, the friction between the bushing and the sliding groove 11s is reduced, so that the sliding block 131 can slide relative to the sliding groove 11s; on the other hand, by arranging the bushing, when the sliding block 131 slides relative to the sliding groove 11s, the bushing is worn, so that the groove wall of the sliding groove 11s is prevented from being worn, and the sliding block 131 is prevented from being worn, and the durability of the seat pipe 10 is improved.

[0052] It is worth mentioning that in some embodiments, the grinding sleeve is provided with a receiving groove 133s, the sliding block 131 is received in the receiving groove 133s, the elastic assembly 13 further comprises a screw 136, the screw 136 penetrates through the bottom of the receiving groove 133s, and the screw 136 locks the grinding sleeve and the sliding block 131. Through the arrangement, the grinding sleeve can be stably fixed on the sliding block 131, so that when the sliding block 131 slides relative to the sliding groove 11s, the grinding sleeve slides relative to the sliding groove 11s.

[0053] It is worth mentioning that in some embodiments, the elastic assembly 13 further comprises an elastic pad 137, the elastic pad 137 is arranged around the sliding block 131, and the elastic pad 137 is located between the first limiting piece 132 and the second limiting piece 133. Through the arrangement of the elastic pad 137, when the first limiting piece 132 limits the second limiting piece 133, the first limiting piece 132 and the second limiting piece 133 are buffered through the elastic pad 137, and the riding comfort of the user can be improved.

[0054] It is worth mentioning that in some embodiments, the elastic piece 135 is a spring.

[0055] It can be understood that the elastic piece 135 can also be other elastic rubber pads.

[0056] In the embodiments of the present application, through the arrangement of the damping seat 100, when subjected to vibration, the vibration is buffered by the elastic assembly 13 in the seat pipe 10 in the damping seat 100, a damping function is achieved, and user experience is improved.

[0057] The embodiments of the present application also provide a traffic tool, which comprises the damping seat 100. For the specific structure and functions of the damping seat 100, refer to the above embodiments, and details are not described here.

[0058] It should be noted that the specification and drawings of the present application provide the preferred embodiments of the present application, but the present application can be implemented in many different forms, and is not limited to the embodiments described in the specification, and the embodiments are not additional limitations on the content of the present application, and the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. And, the above technical features continue to be combined with each other, forming various embodiments not listed above, which are all considered to be within the scope of the present application. Furthermore, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes should be within the protection scope of the appended claims of the present application.

Claims

1. A seat tube, characterized in that: include: Tube body and elastic component; Along the axial direction of the tube body, the tube body is provided with a sliding groove; The elastic component includes a slider, a first limiting member, a second limiting member, an abutting member and an elastic member; The slider is inserted into the chute, and can slide relative to the chute from the notch of the chute to the bottom of the chute; The first limiting member is fixed to the sliding groove, and the first limiting member is arranged close to the notch; The abutment member is arranged at the bottom of the chute; The second limiting member is fixed to the slider, the second limiting member is located between the first limiting member and the abutting member, and the first limiting member is used to limit the second limiting member; The elastic member is arranged in the sliding groove, one end of the elastic member is arranged in the sliding block, and the other end of the elastic member is arranged in the second limiting member.

2. The seat tube according to claim 1, wherein: The abutment member is provided with a material-reducing through hole.

3. The seat tube according to claim 2, wherein: The material-reducing through holes are opened along the axial direction of the tube body. The number of the material-reducing through holes is three, and the three material-reducing through holes are distributed on the tube body.

4. The seat tube according to claim 3, characterized in that The cross section of the material-reducing through hole is fan-shaped.

5. The seat tube according to claim 1, wherein: The pipe body comprises a main body and a connector, and the main body and the connector are threadedly connected; The slide groove passes through the body and the connector; One end of the slider is located on the body, and the other end of the slider is located on the connector; The first limiting member is located on the connecting head; The second limiting member is located on the main body.

6. The seat tube according to claim 5, characterized in that The second limiting member is a grinding sleeve.

7. The seat tube according to claim 6, characterized in that The grinding sleeve is provided with a receiving groove, the sliding block is received in the receiving groove, and the elastic component further comprises a screw, the screw passes through the bottom of the receiving groove, and the screw locks the grinding sleeve and the sliding block.

8. The seat tube according to any one of claims 1 to 7, characterized in that: The elastic component further includes an elastic pad, which is arranged around the slider and located between the first limiting member and the second limiting member.

9. The seat tube according to any one of claims 1 to 7, characterized in that: The elastic member is a spring.

10. A means of transport, characterized in that: Comprising the seat tube according to any one of claims 1 to 9.

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