CN210175037U

CN210175037U - Seat pipe clamp mechanism and vehicle

Info

Publication number: CN210175037U
Application number: CN201921879859.9U
Authority: CN
Inventors: shuanghua Cao; 曹双华; Xuan Wang; 王轩
Original assignee: Beijing Mobike Technology Co Ltd
Current assignee: Hanhai Information Technology Shanghai Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-03-24
Anticipated expiration: 2029-11-01

Abstract

The utility model provides a seat pipe clamp mechanism, include: the hoop assembly comprises a first hoop and a second hoop, the first hoop and the second hoop are oppositely arranged to form a seat post groove, two locking parts are respectively formed at two ends of the two hoops, and the two locking parts of the first hoop correspond to the two locking parts of the second hoop one by one; the two groups of stroke control assemblies are respectively connected to one locking part of the first hoop and extend to one side of the second hoop far away from the first hoop; each group of locking assemblies comprises extrusion parts, and the two extrusion parts are respectively and rotatably connected to the structures, far away from the first hoop, of the two groups of stroke control assemblies; the pressing member is configured to press the locking portion of the second anchor ear by rotation to reduce the seat post groove. The utility model provides a seat pipe clamp mechanism presss from both sides tightly convenient, and can realize dismantling fast.

Description

Seat pipe clamp mechanism and vehicle

Technical Field

The utility model belongs to sharing vehicle field, specifically, the utility model relates to a seat pipe clamp mechanism and vehicle.

Background

The bicycle is always a very popular tool for people to ride instead of walk in life. In recent years, the business model of sharing bicycles has developed rapidly, further driving the development of the bicycle industry.

The height of the saddle of a bicycle during riding directly determines the comfort of people during riding (especially in the case of riding for a longer time), and the importance of the height is self-evident. As a commonly usable shared bicycle, the performance requirements are different from those of a conventional bicycle. On the one hand, sharing bicycles has higher requirements on the convenience of use. If the problems of riding laboursome, inconvenient use and the like are caused, the utilization rate of the shared bicycle is reduced, and the market competitiveness is reduced. More importantly, the shared bicycle is used in a relatively poor condition. The shared bicycle is in an open environment for a long time, and the wear of the bicycle and the influence of the environment on the bicycle are relatively serious. In addition, the user does not pay attention to the protection of the shared bicycle, and the vehicle is easily damaged.

For the traditional bicycle saddle, the device for adjusting the height of the saddle is not easy to operate, different users cannot effectively realize flexible adjustment of the height of the saddle according to the requirements of the users, and the individual requirements of the users cannot be met. Especially, the existing adjusting devices need to be adjusted by other tools, which brings great inconvenience to users. Even if can adjust, because do not adjust the restraint, the locking degree of regulation is wayward, can appear locking not tightly or lock too tight problem, this user's the impression of riding has been influenced greatly.

In addition, after the existing device for adjusting the height of the saddle is installed, the device needs to be replaced, so that time and labor are wasted in disassembly, and the maintenance cost of the shared bicycle is increased.

Therefore, the traditional adjusting device is not suitable for the application requirement of the shared bicycle, is inconvenient to disassemble and assemble, and needs to improve the adjusting mechanism of the seat tube height, so that the problems of inconvenience caused by tool adjustment, difficulty in control of locking degree and inconvenience in disassembling and assembling are avoided.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a seat tube clamp mechanism.

Another object of the present invention is to provide a vehicle having the seat pipe clamp mechanism.

A seat tube clamp mechanism comprising:

the hoop assembly comprises a first hoop and a second hoop, the first hoop and the second hoop are oppositely arranged to form a seat post groove in a surrounding mode, two locking parts are respectively formed at two ends of the first hoop and two ends of the second hoop, and the two locking parts of the first hoop correspond to the two locking parts of the second hoop one by one;

the two groups of stroke control assemblies are respectively connected to one locking part of the first hoop, and each group of stroke control assembly extends to one side, far away from the first hoop, of the second hoop;

each group of locking assemblies comprises extrusion parts, and the two extrusion parts are respectively and rotatably connected to the structures, far away from the first hoop, of the two groups of stroke control assemblies;

the pressing member is configured to press the locking portion of the second anchor ear by rotation to reduce the seat post groove.

Optionally, the structure of the stroke control assembly far away from the first hoop is provided with a rotating shaft, and the extrusion piece is provided with a shaft hole; the rotating shaft is inserted into the shaft hole to rotatably connect the pressing member with the stroke control assembly.

Optionally, the axis of rotation of the extrusion is perpendicular to the axis of the seatpost groove.

Optionally, a wear pad is disposed between the extrusion and the locking portion of the second hoop, and the wear pad is configured to isolate the extrusion from the locking portion of the second hoop.

Optionally, the extrusion is an eccentric cam, and the wear plate is a cambered surface structure capable of fitting with the eccentric cam surface.

Optionally, the arc of the curved surface of the curved structure is greater than the maximum arc of the eccentric cam.

Optionally, the stroke control assembly comprises a stroke screw and a spindle nut;

the extrusion piece is provided with a radial avoidance groove;

the rotating shaft nut is provided with a first threaded hole, and the extrusion piece is rotationally connected to the rotating shaft nut;

the stroke screw passes the locking portion of first staple bolt, with the locking portion of first staple bolt corresponds the locking portion of second staple bolt radially dodge the groove, the stroke screw with first screw hole threaded connection.

Optionally, the seat pipe clamp mechanism further comprises a wrench, the wrench is of a U-shaped structure, and two ends of the U-shaped structure are connected with the two extrusion pieces respectively.

Optionally, one side of the extrusion piece, which faces the wrench, is provided with a protruding structure, the radial cross section of the protruding structure is polygonal or circular, and the wrench is provided with a connecting hole matched with the cross section of the protruding structure in shape.

Optionally, the locking assembly further comprises a locking screw, a second threaded hole coaxial with the extrusion piece is formed in the protruding structure, and the locking screw penetrates through the connecting hole of the wrench and is fixed to the second threaded hole.

Optionally, the seat tube clamp mechanism further comprises a concave wheel gasket, the concave wheel gasket is arranged between the extrusion piece and the locking portion of the second anchor ear, the concave wheel gasket forms a semi-enclosed matching relationship for the extrusion piece, and the concave wheel gasket is configured to transmit a clamping force of the extrusion piece on the second anchor ear.

Optionally, a boss is arranged on the surface of the concave wheel gasket, which is close to the second hoop, and a groove matched with the boss is correspondingly arranged on the locking portion of the second hoop.

A vehicle, comprising:

a body having a center tube;

in the seat pipe clamping mechanism, the seat rod is clamped on the middle pipe;

the seat post penetrates through the seat post groove and extends into the middle tube, and the seat is arranged on the seat post.

Technical scheme's beneficial effect lies in: the seat post clamp can be quickly mounted and dismounted by arranging the first hoop and the second hoop which are detachably connected; the rotation of the extrusion piece is utilized to reduce the seat rod groove to clamp the vehicle seat rod, the clamping is convenient, the clamping stroke is controllable, and the problem that the seat rod is clamped too tightly or not tightly is effectively avoided.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

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

Figure 1 is an exploded view of a seat tube clamp mechanism according to an embodiment of the present invention;

FIG. 2 is a top view of a seat tube clamp mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the operation of the seat tube clamp mechanism according to an embodiment of the present invention;

the figures are labeled as follows: 1-a hoop component; 11-a first hoop; 111-a locking portion; 12-a second hoop; 121-a locking part; 13-seat post groove; 2-an extrusion; 21-axle hole; 22-radial escape slots; 3-a stroke control component; 31-stroke screw; 32-spindle nut; 4-a wrench; 41-connecting hole; 5-wear resistant sheet; 6-concave wheel shim; 7-locking screws.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, 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 invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, 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 designate like items in the following figures. Thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

The height adjustment of the bicycle saddle is achieved by adjusting the height of its seat post. After the height of the bicycle seat post is determined, the seat post is required to be locked by using the seat post clamp, so that the height of the seat post is not changed. The common seat rod clamp adjusts the clamping degree by adjusting the thread meshing width of the bolt and the nut, and a special tool is needed during adjustment. This is used on a shared bicycle and is inconvenient. Even if can adjust, adjust locking degree also not easy control, can appear pressing from both sides too tight or press from both sides tight problem. And the existing bicycle seat post clamp is inconvenient to disassemble and assemble, so that the assembly and maintenance cost of the shared bicycle is greatly increased. Accordingly, there is a need for an improved architecture for an existing seatpost clamp that overcomes the above-mentioned problems.

The utility model provides a seat pipe clamp mechanism, as shown in figure 1 to figure 2, include: the hoop component 1, the hoop component 1 includes a first hoop 11 and a second hoop 12. The first hoop 11 and the second hoop 12 are oppositely arranged to form a seat post groove 13, two ends of the first hoop 11 and the second hoop 12 respectively form two locking parts, and the two locking parts 111 of the first hoop 11 correspond to the two locking parts 121 of the second hoop 12 one by one;

specifically, the first anchor ear 11 may be symmetrically disposed with the second anchor ear 12, and the locking portions at the two ends of the anchor ear are in one-to-one correspondence. The two anchor ears enclose a seat post slot 13 for the seat post of the vehicle to pass through. The seat post groove 13 may be circular or polygonal, which is not limited by the present invention. Correspondingly, the first anchor ear 11 and the second anchor ear 12 may be semi-annular structures, or may be other shapes that enclose the seat post groove, such as bending structures, and those skilled in the art may select the structures of the first anchor ear 11 and the second anchor ear 12 according to actual needs, which is not limited by the present invention. When the seat post is used, the size of the seat post groove 13 formed by enclosing the two hoops is reduced by reducing the gaps of the two hoops corresponding to the locking parts, and then the seat post is clamped. Set up the first staple bolt 11 of detachable and second staple bolt 12, not only can be with convenient and fast to the installation of seat pole clamp, when can realizing the later maintenance moreover, the quick assembly disassembly of seat pole clamp has effectively reduced the installation maintenance cost of vehicle.

The seat pipe clamp mechanism also comprises two groups of locking assemblies and two groups of stroke control assemblies 3, wherein each group of locking assemblies comprises an extrusion part 2; each group of the stroke control assemblies 3 is connected to one of the locking portions 111 of the first hoop 11, and then the stroke control assemblies extend from one of the locking portions of the first hoop 11 to a direction away from the first hoop 11 and toward the second hoop 12 until extending to a side of the second hoop 12 away from the first hoop 11. Two extruded articles 2 swivelling joint are respectively keeping away from of two sets of stroke control assembly 3 first staple bolt 11 is structural, and extruded article 2 is used for compressing tightly the locking portion 121 of second staple bolt 12 through the rotation, reduces seatpost groove 12 to press from both sides tight vehicle seatpost.

The utility model discloses utilize the rotatory locking portion who extrudees the second staple bolt of extruded article, realize that the seat pole presss from both sides tightly, this structure has simple structure, adjusts convenient characteristics. Meanwhile, the seat post groove for clamping the seat post is formed by enclosing the first anchor ear and the second anchor ear, and the installation is convenient and fast.

Optionally, the stroke control assembly 3 is provided with a rotating shaft on the structure far away from the first hoop 11, and the extrusion piece 2 is provided with a shaft hole 21; the spindle is inserted into the shaft hole 21 to rotatably couple the extrusion 2 with the stroke control assembly 3. The axis of rotation of the extrusion 2 is perpendicular to the axis of the seat post groove 12.

In use, the extrusion 2 is rotated about a rotational axis formed through the axial hole 21 provided in the extrusion 3. The axis of the rotating shaft is perpendicular to the axis of the seat post groove 13, i.e. the rotating surface formed by the extrusion 2 rotating around the rotating shaft is parallel to the axis of the seat post groove 13.

Alternatively, the shaft hole 21 is provided in a structure of the stroke control unit 3 away from the first anchor ear 11, and the rotary shaft is provided in the extrusion 2. In use, the extrusion member 2 is inserted into the shaft hole of the stroke control assembly 3, so that the extrusion member 2 is rotatably connected with the stroke control assembly 3.

Realize extruded article and stroke control subassembly swivelling joint through the form that sets up pivot and shaft hole, can extrude the locking portion of second staple bolt when making extruded article rotatory to reduce the seat pole groove, with the tight vehicle seat pole of clamp. The structure is simple in arrangement, convenient to realize and capable of effectively reducing the manufacturing cost.

The rotation axis of the extrusion 2 is perpendicular to the axis of the seat post groove 12, and can provide an operation space for the adjustment of the seat post clamp.

Alternatively, the pressing member 2 is an eccentric cam configured to press the cam surface against the locking portion 121 of the second anchor ear 12 by rotation to narrow the seat bar groove 13. Of course, the extrusion member 2 may be of other configurations capable of achieving rotational extrusion.

In particular, an eccentric cam can be driven to produce a rotational movement. Alternatively, an eccentric cam is provided in contact with the locking portion 121 of the second anchor ear 12. When the eccentric cam rotates to the arc section with larger diameter to contact with the locking part of the second hoop 12, the cam surface of the eccentric cam presses the locking part 121 of the second hoop 12, so that the distance between the locking parts of the second hoop 12 and the first hoop 11 is reduced, the seat post groove 13 surrounded by the two hoops is reduced, and the seat post is clamped; when the eccentric cam rotates to the arc section with smaller diameter to contact with the locking part of the second hoop, the cam surface of the eccentric cam releases the locking part 121 of the second hoop 12, so that the distance between the locking parts of the second hoop 12 and the first hoop 11 is increased, the seat post groove 13 surrounded by the two hoops is enlarged, and the seat post is further released from being clamped. From the above, the locking strokes of the two hoops can be designed by setting different diameters of the eccentric cams.

The utility model discloses a theory of operation of two clamp quick detach seat pole pipe mechanisms is: the eccentric cam is driven to rotate to drive the locking part 121 of the second hoop 12 in contact connection with the eccentric cam to move, and the distance between the locking part 121 of the second hoop 12 and the corresponding locking part 111 of the first hoop 11 is increased or decreased to enlarge or reduce the seat post groove 13, so that the seat post penetrating through the seat post groove 13 is loosened or locked.

According to the technical scheme, the seat rod is controlled to be locked or unlocked by the seat rod clamp 1 through the rotation of the eccentric cam, the adjusting mode is simple, and the locking is reliable. The utility model provides a seat pipe clamp mechanism simple structure, it is controllable to adjust the stroke, and easy dismounting can effectively reduce the installation maintenance cost of this mechanism, and then reduces the cost of vehicle.

Optionally, a wearpad 5 is disposed between the eccentric cam and the locking portion 121 of the second anchor ear 12, and the wearpad 5 is configured to isolate the eccentric cam from the locking portion 121 of the second anchor ear 12.

After the wear-resistant plate 5 is arranged between the eccentric cam and the locking part 121 of the second anchor ear 12, the eccentric cam is only in contact connection with the wear-resistant plate 5. The other side of the wear-resistant sheet 5 is connected with the locking part 121 of the second anchor ear 12. Alternatively, the wearpad 5 may be fixedly connected with the locking portion 121 of the second anchor ear 12. When the eccentric cam is rotated, its cam surface acts on the surface of the wear plate 5. The wear-resistant plate 5 transmits the acting force from the eccentric cam to the locking portion 121 of the second anchor ear 12, so that the seat post groove 13 between the second anchor ear 12 and the first anchor ear 11 is enlarged or reduced to loosen or lock the seat post of the vehicle.

Because the shared vehicle is used by different users every day, the user needs to adjust the height of the seat of the shared vehicle according to the height and the body type of the user, so that the use comfort level is improved. Therefore, the double-clamping quick-release seat rod pipe mechanism has more use times, the wear-resistant sheet 5 is arranged, the second hoop 12 can be effectively protected, the service life of the seat pipe clamp mechanism is prolonged, and the maintenance cost of the seat pipe clamp mechanism is reduced.

Optionally, the wearpad 5 is a cambered surface structure capable of fitting on the eccentric cam surface.

Alternatively, the wear pad 5 is a cambered surface structure having a curved surface, which is opposite to the cam surface of the eccentric cam. And in the rotating process of the eccentric cam, the cam surface is attached to the cambered surface of the wear-resisting plate 5. Therefore, on one hand, the rotation stability of the eccentric cam can be improved, on the other hand, the abrasion of the cam surface can be reduced, and the service life of the eccentric cam is prolonged.

Optionally, the arc of the arc structure is greater than the maximum arc of the eccentric cam. Namely, the arc surface of the wear-resistant sheet 5 attached to the cam surface of the eccentric cam has an arc degree greater than the maximum arc degree of the cam surface. Thus, during the rotation of the eccentric cam, the eccentric cam is prevented from interfering with the wear plate 5.

Alternatively, as shown in fig. 2, the stroke control assembly 3 includes a stroke screw 31 and a spindle nut 32; the eccentric cam is provided with a radial avoidance groove 22; the rotating shaft nut 32 serves as the rotating shaft, and a first threaded hole is formed in the rotating shaft nut 32; the stroke screw 31 passes the locking portion 111 of first staple bolt 11, with the locking portion 11 of first staple bolt 11 corresponds the locking portion 121 of second staple bolt 12 radially dodge the groove 22, the stroke screw 31 with first screw hole threaded connection.

Specifically, as an embodiment of the present invention, the stroke control assembly includes a stroke screw 31 and a rotating shaft nut 32. The rotating shaft nut 32 is inserted into the shaft hole 21 of the eccentric cam to serve as a rotating shaft for the eccentric cam to rotate. The stroke screws 31 respectively pass through the locking portion 111 of the first anchor ear 11 and the locking portion 121 of the second anchor ear 12 corresponding to the locking portion 111 of the first anchor ear 11, are inserted into the radial avoiding groove 22 of the eccentric cam, and are connected to the spindle nut 32. The locking portion 111 of the first anchor ear 11 and the locking portion 121 of the second anchor ear 12 are provided with through holes corresponding to the stroke screws 31 for the stroke screws 31 to pass through. The stroke screw 31 serves as a movement guide shaft for the locking portion 121 of the second anchor ear 12 when the locking portion 121 of the second anchor ear 12 is tightened or loosened. Optionally, the stroke screw 31 is provided with a limiting end at a locking portion located at a side of the first anchor ear 11 away from the second anchor ear 12. For example, the limiting end may be a screw head of the travel screw 31, which is not limited in this application. Spacing end can prevent effectively on the one hand that first staple bolt locking portion from deviating from the stroke screw, and on the other hand can provide the locking stroke that needs for the seatpost clamp. A radial escape groove 22 is provided on the eccentric cam towards the second anchor ear 12 or the first anchor ear 11. The radial avoiding groove 22 is used for avoiding the stroke screw 31 when the stroke screw 31 is connected with the rotating shaft nut 32, and provides an installation space for the stroke screw 31. The spindle nut 32 is provided with a first threaded hole. After the rotating shaft nut 32 is inserted into the shaft hole 21 of the eccentric cam, the first threaded hole is exposed in the radial avoiding groove 22 of the eccentric cam, so that the stroke screw 31 is connected with the first threaded hole on the rotating shaft nut 32 in a threaded manner after being inserted into the radial avoiding groove 22 of the eccentric cam. The stroke screw 31 and the rotating shaft nut 32 may be connected in other manners, which is not limited by the present invention.

The beneficial effects of the above embodiment are: the stroke screws 31 are used for providing moving guide shafts for the locking parts of the second hoop 12 and the first hoop 11, so that the locking parts can be ensured to move according to a preset direction, and the locking reliability is improved; by arranging the stroke control assembly 3 into the stroke screws 31 and the rotating shaft nuts 32, the structural complexity of the stroke control assembly 3 can be reduced, the manufacturing cost can be reduced, and the installation is convenient; the rotating shaft nut 32 penetrates into the shaft hole 21 of the eccentric cam, and the stroke screw 31 is inserted into the radial avoiding groove 22 of the eccentric cam and then is in threaded connection with the first threaded hole of the rotating shaft nut 32, so that the structural stability of the seat tube clamp mechanism can be improved.

Optionally, the seat pipe clamp mechanism further comprises a wrench 4, the wrench is of a U-shaped structure, and two ends of the U-shaped structure are respectively connected with the two eccentric cams.

Specifically, the end of the eccentric cam remote from the axial bore 21 is connected to the end of the wrench U-shaped structure. When the seat post clamping mechanism is used, optionally, as shown in fig. 3, the wrench 4 is rotated to drive the eccentric cam connected thereto to rotate around the spindle nut 32, so as to press or loosen the locking portion 121 of the second anchor ear 12, so that the seat post groove 13 is reduced or enlarged, thereby clamping or loosening the seat post. This structure enables the eccentric cam to be rotated by the wrench 4, and the rotational motion of the eccentric cam is converted into the linear motion of the locking portion, thereby achieving the reduction or enlargement of the seat post groove 13 to clamp or loosen the seat post of the vehicle. The eccentric cam connected with the seat rod clamp is driven to rotate by the wrench, so that the seat rod clamp is more labor-saving to adjust, and the use convenience of a user is improved.

Optionally, as shown in fig. 1, a side of the eccentric cam facing the wrench 4 is provided with a protruding structure, a radial cross section of the protruding structure is polygonal or circular, and the wrench 4 is provided with a connecting hole 41 matched with a cross section of the protruding structure in shape. When the eccentric cam is used, the protruding structure of the eccentric cam is inserted into a connecting hole 41 formed in the wrench, and the shape of the connecting hole 41 is matched with the cross section shape of the protruding structure. Optionally, the cross-sectional shape of the protruding structure is polygonal, so that the wrench 4 can rotate to drive the eccentric cam to rotate without separately arranging a connecting piece between the protruding structure and the wrench. The arrangement mode can simplify the structure of the double-clamping quick-release seat rod clamp mechanism. Or, the cross section of the protruding structure is circular, the connecting hole 41 is correspondingly formed, and a connecting piece is arranged between the protruding structure and the wrench 4, so that the wrench 4 rotates to drive the eccentric cam to rotate. Therefore, the structures of the eccentric cam and the wrench 4 can be simplified, and the processing and manufacturing cost can be reduced.

Optionally, the locking assembly further includes a locking screw 7, a second threaded hole coaxial with the eccentric cam is formed in the protruding structure, and the locking screw 7 is fixed to the second threaded hole through the connecting hole 41 of the wrench 4.

The locking screw 7 is used for fixedly connecting the eccentric cam with the wrench 4, so that the rotating force can be transmitted to the eccentric cam when the wrench 4 rotates, and the eccentric cam is driven to rotate. The eccentric cam rotates to press the locking portion 121 of the second anchor ear 12 and reduce the seat post groove 13, so that the seat post clamp clamps the seat post. The arrangement of the locking screw 7 can improve the connection strength of the eccentric cam and the wrench 4, and ensure that the seat pipe clamping mechanism realizes the clamping function.

As another embodiment of the present invention, the eccentric cam and the wrench may be integrally disposed, so that the connecting members therebetween may be reduced, and the overall structure may be simplified.

Optionally, the seat tube clamping mechanism further comprises a concave wheel gasket 6, the concave wheel gasket 6 is arranged between the eccentric cam and the locking portion 121 of the second anchor ear 12, the concave wheel gasket 6 forms a half-surrounding fit relationship with the eccentric cam, and the concave wheel gasket 6 is configured to transmit the clamping force of the eccentric cam on the second anchor ear 12.

As an embodiment of the present invention, the concave wheel gasket 6 is fixedly connected to the locking portion 121 of the second hoop 12, the concave wheel gasket 6 can be connected to the cam surface of the eccentric cam in a contacting manner, and the concave wheel gasket 6 forms a semi-enclosed fitting relationship with the eccentric cam. Therefore, the matching relation between the eccentric cam and the concave wheel gasket 6 can be kept in the rotating process of the eccentric cam, more rotation energy of the eccentric cam can be transmitted to the locking part 121 of the second hoop 12 through the concave wheel gasket 6, the rotation energy is converted into the locking effect of the second hoop 12 on the seat post, and the working efficiency of the outside is improved. The semi-surrounding fit relationship of the concave wheel gasket 6 to the eccentric cam is equivalent to providing a preset rotating track for the rotation of the eccentric cam, so that the eccentric cam can be prevented from rotating obliquely.

As another embodiment of the present invention, the concave wheel gasket 6 is sleeved on the stroke screw 31. The concave wheel gasket 6 can be in contact connection with the cam surface of the eccentric cam, and the concave wheel gasket 6 forms a semi-surrounding fit relation with the eccentric cam. The eccentric cam rotates to drive the concave wheel gasket 6 to do linear motion along the stroke screw 31, so as to press or release the locking part 121 of the second anchor ear 12, and the seat post groove 13 clamps or releases the vehicle seat post.

The concave wheel gasket 6 is used as an isolating piece between the eccentric cam and the locking part 121 of the second hoop 12, so that the rotating abrasion of the eccentric cam can be effectively prevented, and the service life of the eccentric cam is prolonged; the concave wheel gasket 6 is matched with the semi-surrounding eccentric cam to provide a rotating track for the rotation of the eccentric cam, so that the rotation of the eccentric cam is more stable, the precision requirement of the eccentric cam can be reduced, and the production cost of the eccentric cam is further saved. Meanwhile, the eccentric cam and the concave wheel gasket 6 are simple in structure and convenient to install, the structure of the seat pipe clamp mechanism can be more compact, and the action effect of the eccentric cam is optimized.

Optionally, a wear plate 5 may be provided between the pocket wheel shim 6 and the eccentric cam. The opposite surfaces of the wear-resistant sheet 5 and the concave wheel gasket 6 are the same as the concave wheel gasket surface of the concave wheel gasket 6 in shape, so that the probability of relative position change of the wear-resistant sheet and the concave wheel gasket 6 can be reduced, and the protection effect of the wear-resistant sheet 5 on the concave wheel gasket 6 can be fully exerted. In addition, the surface of the wear-resistant sheet 5 opposite to the eccentric cam is arc-shaped, and the wear-resistant sheet 5 can form a semi-surrounding matching relation with the eccentric cam through the arc-shaped surface, so that a rotating track is provided for the rotation of the eccentric cam, and the rotation of the eccentric cam is more stable.

Optionally, a boss is disposed on the surface of the concave wheel gasket 6 close to the second hoop 12, and a groove matched with the boss is correspondingly disposed on the locking portion 121 of the second hoop 12. When the locking device is used, the boss on the concave wheel gasket 6 is inserted into the groove of the second hoop locking part 121. This setting mode can prevent effectively that concave wheel gasket 5 from taking place for the rotation of second staple bolt, reduces unnecessary friction and wear and energy loss. Alternatively, the bosses may be vertically disposed, and correspondingly, the grooves on the locking portion 121 of the second hoop 12 are also vertically disposed. This arrangement can reduce the interference probability of recess and second staple bolt 12, is favorable to reducing the size of locking portion.

The utility model also provides a vehicle, the vehicle includes automobile body main part, above-mentioned seat pipe clamp mechanism, seat pole and saddle. The vehicle body main body is provided with a middle pipe, and a seat rod of the seat pipe clamping mechanism is clamped on the middle pipe. The seat is arranged on the seat post which is inserted through the seat post groove 13 in the seat post clamp and into the middle tube. When the wrench 4 is rotated to rotate the eccentric cam to a position where the pressing force can be generated, the diameter of the seat rod groove 13 is reduced to clamp the seat rod, and the seat rod cannot move up and down in the middle pipe. When the wrench is rotated to rotate the eccentric cam to a position where the pressing force is not present, the diameter of the seat post groove 13 is enlarged, and the seat post is released by the seat post clamp and can be adjusted and moved up and down. The utility model provides a vehicle is fit for being used as sharing vehicle.

The vehicle with the seat pipe clamp mechanism provided by the utility model has higher reliability and adjustability, the structure arrangement mode of the eccentric cam and the concave wheel gasket is convenient for adjustment, and the effects of holding and loosening are better and more stable; the service life of the eccentric cam is long, the maintenance frequency can be reduced, and the maintenance cost is reduced; the first hoop and the second hoop which are detachably designed can realize quick detachment of the seat pipe clamp mechanism, and the seat pipe clamp mechanism is convenient to maintain and replace.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. 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 invention. The scope of the invention is defined by the appended claims.

Claims

1. Seat pipe clamp mechanism, its characterized in that includes:

2. A seat tube clamp mechanism as set forth in claim 1, wherein said travel control assembly is pivotally mounted to said structure remote from said first anchor ear and said extrusion has an axial bore therein;

or the structure of the stroke control assembly, which is far away from the first hoop, is provided with a shaft hole, and the extrusion piece is provided with a rotating shaft;

the rotating shaft is inserted into the shaft hole to rotatably connect the pressing member with the stroke control assembly.

3. A seat tube clamp mechanism as recited in claim 1, wherein the axis of rotation of said extrusion is perpendicular to the axis of said seat tube slot.

4. A seat tube clamp mechanism as set forth in claim 1, wherein a wear tab is disposed between said extrusion and said locking portion of said second anchor ear, said wear tab being configured to isolate said extrusion from said locking portion of said second anchor ear.

5. A seat tube clamp mechanism as set forth in claim 4, wherein said extrusion is an eccentric cam and said wear plate is a cambered surface configuration capable of engaging a surface of said eccentric cam.

6. A seat tube clamping mechanism as set forth in claim 5, wherein said arcuate surface is curved in an arc greater than the maximum arc of said eccentric cam.

7. A seat tube clamp mechanism as set forth in claim 1, wherein said travel control assembly includes a travel screw and a spindle nut;

the extrusion has a radial avoidance groove;

the rotating shaft nut is provided with a first threaded hole, and the extrusion piece is rotatably connected with the rotating shaft nut;

the stroke screw passes in proper order the locking portion of first staple bolt, with the locking portion of first staple bolt corresponds the locking portion of second staple bolt radially dodge the groove, with first screw hole threaded connection.

8. A seat tube clamp mechanism as recited in claim 1, further comprising a wrench, said wrench being of a U-shaped configuration, said U-shaped configuration having opposite ends connected to said two extrusions, respectively.

9. A seat tube clamping mechanism as recited in claim 8, wherein said extrusion has a protrusion on a side thereof facing said wrench, said protrusion having a polygonal or circular radial cross-section, and said wrench has an attachment hole formed therein to match the cross-sectional shape of said protrusion.

10. A seat tube clamp mechanism as set forth in claim 9, wherein said locking assembly further includes a locking screw, said projecting structure having a second threaded bore coaxial with said extrusion, said locking screw being secured to said second threaded bore through said wrench attachment bore.

11. A seat tube clamp mechanism according to any one of claims 1-10, further comprising a concave wheel shim disposed between the extrusion and the locking portion of the second anchor ear, the concave wheel shim forming a semi-encircling mating relationship with the extrusion, the concave wheel shim configured for transmitting the clamping force of the extrusion against the second anchor ear.

12. A seat tube clamp mechanism as recited in claim 11, wherein a boss is disposed on the surface of the concave wheel spacer adjacent to the second anchor ear, and a groove is correspondingly disposed on the locking portion of the second anchor ear for engaging with the boss.

13. A vehicle, characterized by comprising:

a body having a center tube;

an seat tube clamping mechanism as claimed in any one of claims 1 to 12, wherein said seat rod is jacketed on said intermediate tube;