Quick-release vertical pipe device for bicycle

Abstract

The utility model belongs to the technical field of bicycle accessories, and particularly relates to a bicycle quick-release vertical pipe device which comprises a sleeve pipe, the sleeve pipe is in a circular pipe shape, an annular upper fixing ring and an annular lower fixing ring are fixedly arranged on the upper portion and the lower portion of the outer side wall of the sleeve pipe respectively, and a circular-hole-shaped through hole is formed in the outer side wall of the sleeve pipe in a surrounding mode with the central axis of the sleeve pipe as the center. The outer side wall of the sleeve is located between the upper fixing ring and the lower fixing ring and sleeved with an annular sleeve in a lifting sliding mode, and the inner side wall of the sleeve and the outer side wall of the sleeve are arranged at an interval and form a cavity. When the height of the vertical pipe body needs to be adjusted or the vertical pipe body needs to be directly detached, after the protective barrel is held by one hand, force is applied in the vertical direction, and the sleeve is lifted, the extrusion ring does not touch and extrude the ball and the positioning hole at the moment, and a user can directly detach the vertical pipe body by the other hand.

Description

Technical Field

[0001] This utility model relates to the field of bicycle accessories technology, specifically a bicycle quick-release stem device. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. Riders power it by pedaling, making it a green and environmentally friendly mode of transportation. It can be used for commuting and travel in an eco-friendly manner; increasingly, people are using bicycles as fitness equipment for exercise and cycling tours, and cycling itself is also a competitive sport.

[0003] To accommodate different heights and make riding more comfortable, the lower end of the stem used to mount the handlebars usually uses a sleeve structure that can be extended and retracted and is fixed with a nut, which makes it inconvenient to disassemble. Therefore, it is necessary to develop a quick-release stem device for bicycles. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A quick-release seat tube device for bicycles, comprising:

[0007] A sleeve, which is cylindrical in shape, has an upper and lower fixed rings fixedly arranged on its outer side wall. A circular through-hole is centered on the outer side wall of the sleeve. An annular sleeve is slidably fitted between the upper and lower fixed rings on the outer side wall of the sleeve. A cavity is formed between the inner side wall of the sleeve and the outer side wall of the sleeve, with the distance between them denoted as A. The distance between the center of the through-hole and the inner side wall of the sleeve is denoted as B, where B is greater than A. A sphere is movably arranged in the cavity corresponding to each through-hole, with the diameter of the sphere being greater than the inner diameter of the through-hole and greater than A but less than B. A compression ring protrudes from the inner side of the sleeve near the sphere.

[0008] When the sleeve slides upward, the extrusion ring does not touch the extrusion ball, and the gap between the ball and the through hole is set.

[0009] When the sleeve slides downwards, the extrusion ring touches the extrusion ball, and the ball is tightly fitted with the through hole;

[0010] The riser body is cylindrical and vertically slides and lifts inside the sleeve. The outer wall of the riser body has multiple rows of positioning holes for aligning through holes, centered on its own central axis. When the spheres are tightly fitted with the through holes, the surface of all the spheres is pressed tightly against the holes of one ring of positioning holes.

[0011] In a preferred embodiment of the bicycle quick-release stem device described in this utility model, a vertical spring is provided between the upper edge of the sleeve and the bottom of the upper fixing ring.

[0012] In a preferred embodiment of the bicycle quick-release stem device described in this utility model, the lower edge of the compression ring is provided with an arc-shaped transition, and when the sleeve slides downward, the arc-shaped transition first touches the sphere.

[0013] As a preferred embodiment of the bicycle quick-release stem device of this utility model, wherein: the outer wall of the sleeve is fixedly provided with a vertical first limiting strip protruding between two adjacent spheres, and the inner wall of the compression ring is provided with a first limiting groove corresponding to the first limiting strip, the first limiting groove is in contact with the first limiting strip and slides vertically.

[0014] As a preferred embodiment of the bicycle quick-release stem device of this utility model, the outer wall of the sleeve is provided with a cylindrical protective sleeve protruding outward, the inner cavity of the protective sleeve houses a spring, the inner side of the spring slides vertically against the outer side of the upper fixing ring, and the outer wall of the protective sleeve is provided with an anti-slip sleeve.

[0015] As a preferred embodiment of the bicycle quick-release stem device of this utility model, wherein: the outer wall of the stem body is recessed between two adjacent positioning holes and a vertical second limiting groove is provided; the inner wall of the sleeve is fixedly protruding and provided with a second limiting strip corresponding to the second limiting groove; the second limiting groove and the second limiting strip are in contact and slide vertically.

[0016] The beneficial effects of this utility model are: when it is necessary to adjust the height of the riser body or directly disassemble the riser body, by holding the protective sleeve with one hand and applying force in the vertical direction to lift the sleeve, the extrusion ring does not touch the extrusion ball and positioning hole, and the user can directly disassemble the riser body with the other hand. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal components of the protective cylinder of this utility model;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the internal components of the spring and sleeve cross-section;

[0021] Figure 4 This is an exploded view of the sleeve and bushing of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the sleeve of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the riser body after disassembly.

[0024] Figure 7 This is a schematic diagram of the structure of the present invention when the sphere and the through hole are in close contact;

[0025] Figure 8 This is a schematic diagram of the structure of the present invention when the sphere and the through hole are separated.

[0026] In the figure: sleeve 100, upper fixing ring 101, lower fixing ring 102, through hole 103, sphere 104, sleeve 105, compression ring 106, spring 107, arc transition 108, first limiting strip 109, first limiting groove 110, protective cylinder 111, anti-slip sleeve 112, riser body 200, positioning hole 201, second limiting strip 202, second limiting groove 203. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Please see Figures 1-8 The diagram shown is a structural schematic of an embodiment of the bicycle quick-release stem device of this utility model. Please refer to [link / reference]. Figures 1-8 This paper provides a detailed introduction to a quick-release bicycle stem device.

[0032] A quick-release stem device for bicycles includes a sleeve 100, which is cylindrical. An upper fixing ring 101 and a lower fixing ring 102 are fixedly disposed on the outer side wall of the sleeve 100, respectively. A circular through hole 103 is centered on the outer side wall of the sleeve 100. An annular sleeve 105 is slidably fitted onto the outer side wall of the sleeve 100 between the upper fixing ring 101 and the lower fixing ring 102. The inner side wall of the sleeve 105 is spaced from the outer side wall of the sleeve 100, forming a cavity. The distance between the outer walls of the 0 is denoted as value A, and the distance between the center of the through hole 103 and the inner wall of the sleeve 105 is denoted as value B. Value B is greater than value A. A sphere 104 is movably arranged in the cavity corresponding to each through hole 103. The diameter of the sphere 104 is greater than the inner diameter of the through hole 103. The diameter of the sphere 104 is greater than value A and less than value B, ensuring that the sphere 104 can always be located near the through hole 103 and will not fall off from the gap between the sleeve 105 and the tube 100. A compression ring 106 is protruding from the inner side of the sleeve 105 near the sphere 104.

[0033] When the sleeve 105 slides upward, the extrusion ring 106 does not touch the extrusion ball 104, and the ball 104 is spaced apart from the through hole 103.

[0034] When the sleeve 105 slides downward, the extrusion ring 106 touches the extrusion ball 104, and the ball 104 is tightly attached to the through hole 103;

[0035] The riser body 200 is vertically slidably lifted and installed inside the sleeve 100 in a cylindrical shape. The outer wall of the riser body 200 has multiple rows of positioning holes 201 for aligning the through holes 103, with its central axis as the center. When the spheres 104 are tightly attached to the through holes 103, the surfaces of all the spheres 104 are pressed tightly against the holes of one ring of positioning holes 201.

[0036] Wherein: A vertical spring 107 is provided between the upper edge of the sleeve 105 and the bottom of the upper fixing ring 101. The spring 107 applies a downward thrust to the sleeve 105, so that the compression ring 106 always compresses the ball 104, so that all the balls 104 are tightly attached to the through hole 103 and the positioning hole 201, thereby clamping and fixing the riser body 200 to the inside of the sleeve 100.

[0037] Wherein: the lower edge of the extrusion ring 106 is provided with an arc-shaped transition 108. When the sleeve 105 slides downward, the arc-shaped transition 108 first touches the ball 104. The arc-shaped transition 108 increases the contact area between the extrusion ring 106 and the ball 104 when the extrusion ring 106 slides down, thereby better touching and extruding the ball 104.

[0038] Wherein: the outer wall of the sleeve 100 is fixedly provided with a vertical first limiting strip 109 between two adjacent spheres 104, and the inner wall of the extrusion ring 106 is provided with a first limiting groove 110 corresponding to the first limiting strip 109. The first limiting groove 110 fits with the first limiting strip 109 and slides vertically. Through the provided first limiting groove 110 and first limiting strip 109, it is ensured that the sleeve 105 can only anti-slip along the vertical direction of the first limiting strip 109.

[0039] Wherein: the outer side wall of the sleeve 105 is provided with a cylindrical protective sleeve 111 protruding outward, the inner cavity of the protective sleeve 111 houses the spring 107, the inner side of the spring 107 slides vertically against the outer side of the upper fixing ring 101, and the outer side wall of the protective sleeve 111 is provided with an anti-slip sleeve 112 to prevent the spring 107 from being directly exposed to the outside.

[0040] Wherein: the outer wall of the riser body 200 is recessed between two adjacent positioning holes 201 and has a vertical second limiting groove 203. The inner wall of the sleeve 100 is fixedly protruding and has a second limiting strip 202 corresponding to the second limiting groove 203. The second limiting groove 203 and the second limiting strip 202 fit together and slide vertically. Through the setting of the second limiting groove 203 and the second limiting strip 202, it is ensured that the riser body 200 can only anti-slip along the vertical direction of the second limiting strip 202, and it is also ensured that the longitudinally arranged positioning holes 201 and the sphere 104 are kept on the same vertical line.

[0041] In actual use, when it is necessary to adjust the height of the riser body 200 or to directly disassemble the riser body 200, the user can hold the protective sleeve 111 with one hand and apply force in the vertical direction to lift the sleeve 105. At this time, the extrusion ring 106 does not touch the extrusion ball 104 and the positioning hole 201, and the user can directly disassemble the riser body 200 with the other hand.

[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A quick-release stem device for bicycles, characterized in that, The utility model relates to a kind of vertical sliding lifting device, including: Sleeve (100), the sleeve (100) is tubular, annular upper fixed ring (101) and lower fixed ring (102) are respectively fixedly arranged on the outer side wall of the sleeve (100) up and down, the outer side wall of the sleeve (100) is centered around with its own central axis and is opened with circular hole shape and is passed through and is formed with through hole (103), the outer side wall of the sleeve (100) is slidably sleeved with annular sleeve (105) between upper fixed ring (101) and lower fixed ring (102), the inner side wall of the sleeve (105) is spaced apart from the outer side wall of the sleeve (100) and is formed with chamber, the interval between the inner side wall of the sleeve (105) and the outer side wall of the sleeve (100) is recorded as value A, the interval between the center of the through hole (103) and the inner side wall of the sleeve (105) is recorded as value B, the value B is greater than value A, movable ball (104) is movably arranged in the chamber corresponding to each through hole (103), the diameter of the movable ball (104) is greater than the inner diameter of the through hole (103), the diameter of the movable ball (104) is greater than value A and less than value B, the inner side of the sleeve (105) is close to movable ball (104) and is convexly provided with extrusion ring (106); Wherein, when the sleeve (105) slides upwards, the extrusion ring (106) does not touch the extrusion movable ball (104), and the movable ball (104) is arranged with a gap from the through hole (103); When the sleeve (105) slides downwards, the extrusion ring (106) touches the extrusion movable ball (104), and the movable ball (104) is arranged tightly with the through hole (103); Stand pipe body (200) is vertically slidably arranged in the inner side of the sleeve (100) and is cylindrical, the outer side wall of the stand pipe body (200) is centered around with its own central axis and is opened with multiple longitudinal rows of positioning holes (201) for aligning the through hole (103), when the movable ball (104) is arranged tightly with the through hole (103), the surface of all the movable ball (104) is extruded and tightly arranged in the hole of one of the positioning holes (201).

2. A quick release mast apparatus for a bicycle as defined in claim 1, wherein: Spring (107) is arranged vertically between the upper end edge of the sleeve (105) and the bottom of the upper fixed ring (101).

3. A bicycle quick release mast apparatus as defined in claim 1, wherein: The lower edge of the extrusion ring (106) is provided with arc transition (108), and when the sleeve (105) slides downwards, the arc transition (108) first touches the movable ball (104).

4. A bicycle quick release mast apparatus as defined in claim 1, wherein: The outer side wall of the sleeve (100) is fixedly and convexly provided with vertical first limiting strip (109) between adjacent two movable balls (104), and the inner side wall of the extrusion ring (106) is concave and provided with first limiting groove (110) corresponding to the first limiting strip (109), the first limiting groove (110) is combined with the first limiting strip (109) and vertically slides.

5. A bicycle quick release mast apparatus as defined in claim 2, wherein: The outer side wall of the sleeve (105) is provided with a cylindrical protection cylinder (111), the inner cavity of the protection cylinder (111) accommodates a spring (107), the inner side of the spring (107) is vertically slidably attached to the outer side of the upper fixed ring (101), and the outer side wall of the protection cylinder (111) is provided with an anti-skid sleeve (112).

6. A bicycle quick release mast apparatus as defined in claim 1, wherein: The outer side wall of the riser body (200) is provided with a vertical second limiting groove (203) between two adjacent positioning holes (201), and the inner side wall of the sleeve (100) is provided with a second limiting strip (202) corresponding to the second limiting groove (203), and the second limiting groove (203) and the second limiting strip (202) are attached and vertically slidably connected.

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