TWM621410U - Seat post anti-theft structure and bicycle - Google Patents

Abstract

The present disclosure provides a seat post anti-theft structure, which is disposed at a seat tube of a bicycle and includes a seat post and a seat post clamp. The seat post is movably disposed in the seat tube and includes a restricting groove. The seat post clamp includes a clamp body, a radial through hole, an elastic positioning member and an anti-theft fastening member. The clamp body sleeves at one end of the seat tube. The radial through hole is located at the clamp body and correspondingly communicated with a hole of the seat tube. The elastic positioning member is movably received in the radial through hole and protrudes into the hole. The anti-theft fastening member is fastened with the radial through hole to allow the elastic positioning member to be limited in the radial through hole. When the seat post is moved toward the end of the seat post along an axis direction, the elastic positioning member is abutted against the restricted groove and is restricted thereby to prohibit the seat post to separate from the seat tube. Therefore, stealing of the seat post can be prevented.

Description

Seatpost anti-theft structure and bicycle

The present invention relates to a seat post structure and a bicycle, and particularly relates to a seat post anti-theft structure and a bicycle which can prevent the seat post from being stolen.

Generally speaking, a bicycle has a seat post mounted on the middle tube, the seat post is used for setting the seat cushion, and the height of the seat cushion can be adjusted through the relative movement of the seat post and the middle tube. In order to quickly adjust the length of the seatpost, a quick release seatpost clip can be set on the middle tube. The quick release seatpost clip includes a C-shaped buckle and a wrench. The C-shaped buckle is used to tighten the middle tube, thereby fixing the middle tube and the The height of the seat post; when the wrench is pulled, the opening of the C-shaped buckle becomes larger and the tension of the centering tube is relieved. At this time, the user can pull the seat post to adjust the height of the seat post.

However, since the above-mentioned quick release seatpost clip can be operated with bare hands, anyone can operate the quick release seatpost clip to remove the seatpost from the center tube, so the seatpost is easily stolen, resulting in loss of property.

In view of this, how to prevent the seatpost from being stolen has become the goal of the relevant industry.

In order to solve the above problems, the present invention provides an anti-theft structure for a seat post and a bicycle. Through the configuration of the anti-theft structure for the seat post, the theft of the seat post can be effectively prevented.

According to an embodiment of the present invention, an anti-theft structure for a seat post is provided, which is arranged in a middle tube of a bicycle. The anti-theft structure for the seat post includes a rod and a rod clip. The seat post is movably inserted into the middle tube and includes a limit slot. , the seat post clamp includes a retaining ring, a radial perforation, an elastic positioning piece and an anti-theft screw. The retaining ring is sleeved on one end of the middle tube, the radial perforation is located in the retaining ring and corresponds to a hole in the middle tube, the elastic positioning piece is movably accommodated in the radial perforation and protrudes into the hole; the anti-theft screw is screwed in the radial direction Perforations are made to confine the elastic positioning members to the radial perforations. Wherein, when the seat post moves toward the aforesaid end relative to the middle tube in an axial direction, the elastic positioning member abuts against the limiting groove and the position is limited by the limiting slot, so as to prevent the seat post from being separated from the middle tube.

In this way, the elastic positioning member can cooperate with the limiting groove to prevent the seat post from being detached from the center tube, and the anti-theft screw can limit the elastic positioning member to the radial hole, unless a special tool is used to remove the anti-theft screw, otherwise the anti-theft screw cannot be removed. Removing the elastic positioning piece can effectively prevent the seatpost from being stolen.

According to the anti-theft structure of the seat post of the foregoing embodiments, the limiting groove may have a ring groove structure.

According to the anti-theft structure of the seat post of the foregoing embodiments, the elastic positioning member may include a pin member and an elastic member, the pin member is located in the radial through hole and selectively abuts against the limiting groove, and the elastic member is accommodated in the radial through hole and abuts against the position-limiting groove. Top between the anti-theft screw and the pin.

According to the anti-theft structure of the seat post of the foregoing embodiment, the seat post may further comprise a lower tube, an upper tube and a height adjustment mechanism, the upper tube is movably inserted into the lower tube, and the height adjustment mechanism is located in the upper tube and the lower tube , and the height adjustment mechanism is actuated to allow the upper tube to move relative to the lower tube.

According to the anti-theft structure of the seat post of the foregoing embodiments, the anti-theft screw member may include a socket for inserting and fitting a tool, and a cross-sectional shape of the socket is a triangle.

According to the anti-theft structure of the seat post of the aforementioned embodiment, the seat post may further comprise a lower tube, an upper tube and a tail plug, the upper tube is movably inserted into the lower tube, and the tail plug is assembled at a rear end of the lower tube , where the limit groove is located at the tail plug.

According to another embodiment of the present invention, a bicycle is provided, which includes a frame, two wheels and a rod anti-theft structure, the frame includes a middle tube, the middle tube includes a hole, two wheels are arranged on the frame, and the seat post anti-theft structure includes A pole and a pole clamp. The seat post is movably inserted into the middle tube and includes a limiting groove, and the seat post clamp includes a retaining ring, a radial hole, an elastic positioning piece and an anti-theft screw. The retaining ring is sleeved on one end of the middle tube, the radial perforation is located in the retaining ring and corresponds to the hole in the middle tube, the elastic positioning piece is movably accommodated in the radial perforation and protrudes into the hole; the anti-theft screw is screwed in the radial perforation in order to limit the elastic positioning member to the radial perforation. Wherein, when the seat post moves toward the aforesaid end relative to the middle tube in an axial direction, the elastic positioning member abuts against the limiting groove and the position is limited by the limiting slot, so as to prevent the seat post from being separated from the middle tube.

According to the bicycle of the aforementioned embodiments, the elastic positioning member may include a pin member and an elastic member, the pin member is located in the radial hole and selectively abuts against the limiting groove, and the elastic member is accommodated in the radial hole and abuts against theft prevention. between the screw and the pin.

According to the bicycle according to the foregoing embodiment, the anti-theft screw member may include a socket for inserting and mating with a tool, and a cross-sectional shape of the socket is a triangle.

According to the bicycle of the aforementioned embodiments, the seatpost may further comprise a lower tube, an upper tube and a tail plug, the upper tube is movably inserted into the lower tube, and the tail plug is arranged at a rear end of the lower tube, wherein, The limit slot is located in the tail plug.

Embodiments of the present invention will be described below with reference to the drawings. For the sake of clarity, many practical details are set forth in the following description. The reader should understand, however, that these practical details should not limit the invention. That is, in some embodiments of the novel, these practical details are unnecessary. In addition, to simplify the drawings, some well-known and conventional structures and elements will be shown in a simplified and schematic manner in the drawings; and repeated elements may be denoted by the same or similar numerals.

In addition, terms such as first, second, and third in this document are only used to describe different elements or components, and do not limit the elements/components themselves. Therefore, the first element/component can also be renamed as the second element/component . Moreover, the combination of elements/components/mechanisms/modules in this article is not a generally known, conventional or conventional combination in this field, and whether the components/components/mechanisms/modules themselves are known to determine whether their combination relationship is not Easily accomplished by those of ordinary knowledge in the technical field.

Please refer to FIG. 1 and FIG. 2, wherein, FIG. 1 shows a three-dimensional schematic diagram of a seat post anti-theft structure 100 according to the first embodiment of the present invention applied to a middle tube C1, and FIG. 2 shows the first embodiment of the present invention. An exploded schematic diagram of the seat post anti-theft structure 100 and the middle tube C1 according to an embodiment. The seat post anti-theft structure 100 is disposed on a middle tube C1 of a bicycle (not shown in the first embodiment), the seat post anti-theft structure 100 includes a rod 110 and a rod clamp 120 , and the seat post 110 is movably inserted in the center The tube C1 also includes a limiting groove 113 , and the seatpost clip 120 includes a retaining ring 121 , a radial through hole 122 , an elastic positioning member 124 and an anti-theft screw member 123 . The retaining ring 121 is sleeved on one end of the middle tube C1, the radial through hole 122 is located in the retaining ring 121 and is correspondingly communicated with a hole C11 of the middle tube C1, and the elastic positioning member 124 is movably accommodated in the radial through hole 122 and protrudes into the hole C11 ; The anti-theft screw 123 is screwed to the radial hole 122 to limit the elastic positioning piece 124 to the radial hole 122 . Wherein, when the seat post 110 moves toward the aforementioned end relative to the middle tube C1 along an axial direction I1 (marked in FIG. 3 ), the elastic positioning member 124 abuts against the limiting groove 113 and is limited by the limiting groove 113 to prevent the seat The rod 110 is disengaged from the middle tube C1.

Thereby, the elastic positioning member 124 can cooperate with the limiting groove 113 to prevent the seat post 110 from disengaging from the center tube C1, and the anti-theft screw 123 can limit the elastic positioning member 124 to the radial hole 122 unless special tools are used to fix the elastic positioning member 124 in the radial hole 122. If the anti-theft screw 123 is removed, otherwise the elastic positioning member 124 cannot be removed, which can effectively prevent the seat post 110 from being stolen. Details of the seatpost anti-theft structure 100 will be described later.

Please refer to FIG. 3 and FIG. 4, and also refer to FIG. 2, wherein, FIG. 3 is a schematic cross-sectional view of the seat post anti-theft structure 100 and the middle tube C1 according to the first embodiment of FIG. 1, and FIG. 4 Another cross-sectional schematic view of the seat post anti-theft structure 100 and the middle tube C1 according to the first embodiment of FIG. 1 is shown. The seat post 110 is used for setting a seat cushion (not shown in the first embodiment) of the bicycle, and the seat post 110 may further include a lower tube 112, an upper tube 111 and a height adjustment mechanism 114, and the upper tube 111 is movably inserted The height adjustment mechanism 114 is located in the upper tube 111 and the lower tube 112, and the height adjustment mechanism 114 is actuated to allow the upper tube 111 to move relative to the lower tube 112, and the limiting slot 113 is disposed in the lower tube 112 and Has a ring groove structure.

Specifically, the seat post 110 may further include a pivoted cam 115, and the height adjustment mechanism 114 may include an actuating rod 1141, a pipe body (not shown), a valve (not shown) and a piston (not shown) ), the pipe body contains fluid, the actuating rod 1141 extends into the pipe body, when the cam 115 is actuated by the connection of the steel cable, the cam 115 pushes the actuating rod 1141 to open the valve, and the fluid flows relative to the piston to make the upper pipe 111 and the lower pipe 112 generate Relative displacement, the technology of this part is known and not the focus of the present invention, so it is not shown in the drawings and the details are not repeated. In other embodiments, the height adjustment mechanism can be driven by the electric control group, and the motor can be actuated by wireless or wired signals, and the effect of pushing the actuating rod upwards to open the valve can also be achieved. Alternatively, the seat post can also be composed of a hollow tube, which is not limited to the above disclosure.

The middle tube C1 can include a cut groove C12, and the cut groove C12 is located at the aforementioned end, so when the seat post clip 120 is sleeved on the aforementioned end, the tube wall of the middle tube C1 can be tightened and the gap of the cut groove C12 can be narrowed, so that the seat can be fixed. Rod 110 and middle tube C1. The retaining ring 121 has a C-shaped ring structure, and the seatpost clamp 120 may further include a wrench (not shown) pivotally connected to the retaining ring 121 , and the retaining ring 121 can be clamped or loosened by the operation of the wrench. In the first embodiment, The radial hole 122 is located on the side of the retaining ring 121 adjacent to the wrench, and can be protected by the wrench.

The radial through hole 122 penetrates through the body of the retaining ring 121. The elastic positioning member 124 may include a pin member 1241 and an elastic member 1242. The pin member 1241 is located in the radial through hole 122 and selectively abuts against the limiting groove 113. The elastic member 1242 accommodates The radial hole 122 is pressed against the anti-theft screw 123 and the pin 1241 .

As shown in FIG. 3, the pin 1241 may include a head 1241a and a body 1241b, the body 1241b is integrally connected to the head 1241a, the radial through hole 122 may include a first section and a second section that are connected to each other, the second section The section is adjacent to the middle tube C1 and has a smaller inner diameter, so that the body 1241b of the pin 1241 can pass through the second section and protrude into the hole C11 of the middle tube C1, while the head 1241a is limited to the first section. Therefore, when the limiting groove 113 of the seat post 110 is not aligned with the elastic positioning member 124, the elastic member 1242 is compressed, the body 1241b of the pin member 1241 abuts against the outer wall of the seat post 110, and the seat post 110 is not Restricted by the elastic positioning member 124, after the seat post clip 120 is released, the seat post 110 can move relative to the middle tube C1 to adjust the height.

On the contrary, as shown in FIG. 4 , when the seat post 110 is moved to a certain height so that the elastic positioning member 124 is aligned with the limiting groove 113 , the elastic member 1242 is reset to push the pin member 1241 outward, so that the body portion 1241b protrudes in and out. The seat post 110 can no longer move upwards when it abuts against the limiting groove 113 , unless the engagement state between the elastic positioning member 124 and the limiting groove 113 is released, the seat post 110 cannot be pulled out of the middle tube C1 . In other embodiments, the upper groove wall of the limiting groove may have a sloped structure, or the surface of the pin may have a unidirectional sloped structure, or the upper R angle of the pin may be larger than the lower R angle, etc. When the rod moves downward, it is pressed against the elastic positioning member to retract, which can only prevent the seat post from moving up but not the seat post from moving down. Therefore, even if the user accidentally makes the limit groove in the process of adjusting the seat post By engaging with the elastic positioning element, the restriction can also be released by pressing down the seat post, and the convenience of use can be improved.

The anti-theft screw 123 may include an insertion hole 1231 for a tool (not shown) to be inserted and matched, and a cross-sectional shape of the insertion hole 1231 may be a triangle. Therefore, after the wrench is opened, if the user holds a special tool that can correspond to the socket 1231, the anti-theft screw 123 can be detached. At this time, the elastic positioning member 124 is not pressed by the anti-theft screw 123, and can be withdrawn from the limit. Position slot 113, seat post 110 can be pulled out of middle tube C1. As a result, since the insertion hole 1231 of the anti-theft screw 123 has an unconventional cross-sectional shape, the anti-theft screw 123 cannot be detached at will, so the engagement between the elastic positioning member 124 and the limiting groove 113 cannot be released, thereby effectively The seatpost 110 is protected from theft. In other embodiments, the cross-sectional shape of the socket can be a polygon other than a hexagon, or the polygon includes a middle convex point, or a star shape, an irregular shape, etc., which are not limited to the above disclosure.

Accordingly, due to the elasticity of the elastic positioning member 124 , when it is not aligned with the limiting groove 113 , it will elastically abut against the seat post 110 without interfering with the height adjustment of the seat post 110 . Furthermore, in the manufacturing process, the concave limiting groove 113 can be formed at the lower end of the seat post 110 by using a lathe, which has the advantage of simple manufacturing process. In addition, the seat post 110 itself does not need to be additionally formed with structures such as longitudinal grooves, and the structural strength can be maintained.

Please refer to FIG. 5 and FIG. 6, wherein FIG. 5 is a schematic front view of a seat post 210 of a seat post anti-theft structure according to the second embodiment of the present invention, and FIG. 6 is the second embodiment of FIG. 5. Front view exploded schematic view of seatpost 210 . The anti-theft seat post structure of the second embodiment (not marked in Figures 5 and 6) is similar in structure to the anti-theft seat post structure 100 of the first embodiment in Figures 1 to 4, except that the seat post 210 It includes a lower tube 212 , an upper tube 211 and a tail plug 215 . The tail plug 215 is assembled at a rear end of the lower tube 212 , and the limiting groove 213 is located at the tail plug 215 . In other words, in the second embodiment, instead of using a lathe to form the limiting groove 213 on the lower tube 212 , the seatpost can also be made by combining the tail plug 215 with the limiting groove 213 on the lower tube 212 . 210 includes a limiting groove 213, which is more suitable for the lower tube 212 with thinner tube wall.

Please refer to FIG. 7 , wherein FIG. 7 is a schematic diagram of a bicycle 300 according to a third embodiment of the present invention. The bicycle 300 includes a frame (not shown), two wheels (not shown) and a pole anti-theft structure 310. The frame includes a middle tube 320, the middle tube 320 includes a hole (not shown), and the two wheels are disposed on the frame , the structure of the seat post anti-theft structure 310 is the same as that of the seat post anti-theft structure 100 of the first embodiment in FIGS. 1 to 4 , and details will not be repeated. In other embodiments, the seat post can also be replaced with a fifth The seat post 210 of the second embodiment shown in FIG. 6 and FIG. 6 is not limited to the above.

Although the present invention has been disclosed by the above examples, it is not intended to limit the present invention. Anyone who is familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the appended patent application.

100: Seatpost anti-theft structure 110, 210: Seatpost 111,211: Top Tube 112, 212: Down Tube 113,213: Limit slot 114: Height adjustment mechanism 1141: Actuator 115: Cam 215: tail plug 120: Seatpost clip 121: Buckle 122: Radial perforation 123: Anti-theft screws 1231: jack 124: Elastic positioning piece 1241: Pins 1241a: Head 1241b: Body 1242: Elastic 300: Bike 310: Seatpost anti-theft structure 320: Middle Tube C1: Middle tube C11: Holes C12: Cut trench I1: Axial

FIG. 1 is a three-dimensional schematic diagram of a seatpost anti-theft structure applied to a center tube according to a first embodiment of the present invention; Fig. 2 is an exploded schematic diagram of the anti-theft structure of the seat post and the middle tube of the first embodiment of Fig. 1; FIG. 3 is a schematic cross-sectional view of the anti-theft structure of the seat post and the middle tube according to the first embodiment of FIG. 1; FIG. 4 is another cross-sectional schematic view of the anti-theft structure of the seat post and the middle tube according to the first embodiment of FIG. 1; 5 is a schematic front view of a seat post of a seat post anti-theft structure according to a second embodiment of the present invention; Fig. 6 is a schematic exploded front view of the seat post of the second embodiment of Fig. 5; and FIG. 7 is a schematic diagram of a bicycle according to a third embodiment of the present invention.

110: Seatpost

111: Top Tube

112: Down Tube

113: Limit slot

114: Height adjustment mechanism

120: Seatpost clip

121: Buckle

122: Radial perforation

123: Anti-theft screws

1231: jack

124: Elastic positioning piece

1241: Pins

1242: Elastic

C1: Middle tube

C11: Holes

C12: Cut trench

Claims (10)

An anti-theft structure for a seat post is arranged in one of the middle tubes of a bicycle, and the anti-theft structure for the seat post comprises: a rod, which is movably inserted into the middle tube and includes a limiting groove; and A pole clamp, containing: a buckle, sleeved on one end of the middle pipe; a radial perforation, located in the retaining ring and corresponding to a hole in the middle pipe; an elastic positioning member movably accommodated in the radial hole and protruding into the hole; and an anti-theft screw, screwed to the radial hole to limit the elastic positioning element to the radial hole; Wherein, when the seat post moves toward the end relative to the middle tube in an axial direction, the elastic positioning member abuts against the limiting groove and is limited by the limiting groove, so as to prevent the seat post from separating from the middle tube. The anti-theft structure of the seat post according to claim 1, wherein the limiting groove has a ring groove structure. The anti-theft structure for a seat post according to claim 1, wherein the elastic positioning member comprises: a pin located in the radial through hole and selectively abutting against the limiting groove; and An elastic piece is accommodated in the radial hole and abuts between the anti-theft screw piece and the pin piece. The anti-theft structure for a seat post according to claim 1, wherein the seat post further comprises: one tube; an upper tube movably inserted into the lower tube; and A height adjustment mechanism is located in the upper tube and the lower tube, and the height adjustment mechanism is actuated to allow the upper tube to move relative to the lower tube. The anti-theft structure of the seat post as claimed in claim 1, wherein the anti-theft screw includes a socket for inserting and mating with a tool, and a cross-sectional shape of the socket is a triangle. The anti-theft structure for a seat post according to claim 1, wherein the seat post further comprises: one tube; an upper tube movably inserted into the lower tube; and a tail plug assembled at a tail end of the lower tube; Wherein, the limiting groove is located on the tail plug. A bicycle comprising: a frame, including a middle tube, the middle tube including a hole; two wheels, provided on the frame; and A pole anti-theft structure, including: a rod, which is movably inserted into the middle tube and includes a limiting groove; and A pole clamp, containing: a buckle, sleeved on one end of the middle pipe; a radial through hole, located in the retaining ring and corresponding to the hole in the middle pipe; an elastic positioning member movably accommodated in the radial hole and protruding into the hole; and an anti-theft screw, screwed to the radial hole to limit the elastic positioning element to the radial hole; Wherein, when the seat post moves toward the end relative to the middle tube in an axial direction, the elastic positioning member abuts against the limiting groove and is limited by the limiting groove, so as to prevent the seat post from separating from the middle tube. The bicycle as claimed in claim 7, wherein the elastic positioning member comprises: a pin located in the radial through hole and selectively abutting against the limiting groove; and An elastic piece is accommodated in the radial hole and abuts between the anti-theft screw piece and the pin piece. The bicycle according to claim 7, wherein the anti-theft screw includes a socket for inserting and matching a tool, and a cross-sectional shape of the socket is a triangle. The bicycle of claim 7, wherein the seatpost further comprises: one tube; an upper tube movably inserted into the lower tube; and a tail plug assembled at a tail end of the lower tube; Wherein, the limiting groove is located on the tail plug.

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