WO2019062334A1

WO2019062334A1 - Bicycle seat height-adjustment apparatus

Info

Publication number: WO2019062334A1
Application number: PCT/CN2018/098689
Authority: WO
Inventors: 李利
Original assignee: 李利
Priority date: 2017-09-30
Filing date: 2018-08-03
Publication date: 2019-04-04
Also published as: CN107585236A

Abstract

A bicycle seat height-adjustment apparatus, comprising a seat height-adjustment rod (1), a base (2), a locking apparatus (3), a spring, a shaft, and a height-adjustment bicycle-frame tube (4); the seat height-adjustment rod (1) passes through the base (2) and is mounted in the height-adjustment bicycle-frame tube (4), a groove (102) extending along the vertical direction of the side wall of said rod, and a toothed rack (101) being mounted in the groove; the outer side wall of the base (2) is provided with a support frame (201), a through hole (202) being disposed near the location corresponding to the support frame (201); the locking apparatus (3) is provided with a shaft part, a locking part (303) and a handle part (302); the shaft part is mounted on the support frame (201), enabling the locking part (303) to pass through the through hole (202) and be inserted into the side wall groove of the seat height-adjustment rod (1) by means of the functioning of the spring, and mesh with the toothed rack (101), thereby implementing locking. When it is necessary to adjust the height of the seat downward, the handle part may be pressed and released, and when it is necessary to adjust upward, this may be done by pulling up the seat.

Description

Bicycle saddle lifting device

Technical field

The invention belongs to the field of bicycle accessories, and more particularly to a bicycle saddle lifting device.

technical background

With the widespread use of shared bicycles, bicycle-related technologies have also undergone various innovations to meet the various needs of people when using shared bicycles. At the same time, since the shared bicycle users are often different users, the original bicycle technology is mostly based on fixed users. Therefore, the user's demand for the shared bicycle to meet the individual characteristics of the user is increasingly prominent, and the mismatch between the height difference of the user and the height of the bicycle seat in use becomes one of the important factors affecting the user experience.

Summary of the invention

1. Problems to be solved by invention

The object of the present invention is to overcome the problem that the existing bicycle saddle height adjustment technology is not convenient to use.

2, technical solutions

In order to achieve the above object, the technical solution provided by the present invention is:

A bicycle saddle lifting device comprises a saddle lifting rod and a base; further comprising a locking device, a spring, a rotating shaft and a frame lifting cylinder; and the outer side wall of the saddle lifting rod is provided with a rack in the longitudinal direction The outer side wall of the base is provided with a bracket; the base is a tubular structure, and the inner diameter of the upper portion of the base is adapted to the outer diameter of the saddle lifting rod, and the inner diameter of the lower portion is adapted to the outer diameter of the lifting frame of the frame; The seat cover is fixed at the top of the frame lifting tube, and is fixedly connected with the frame lifting tube or formed integrally with the frame lifting tube; the saddle lifting rod is installed in the frame lifting tube through the base; the base is corresponding to the bracket The through hole is disposed near the position; the locking device includes a rotating shaft portion, a locking portion and a handle portion; the locking device is fixedly mounted on the bracket and rotatable, and after the mounting, the locking portion end is at a position corresponding to the through hole And the end of the locking portion can be in contact with the rack through the through hole; thereby locking by the engagement of the locking portion with the rack.

Further, the locking portion has a wedge-shaped structure, and a corresponding side of the locking portion and the bottom of the saddle lifting rod is an upward inclined surface, and a side corresponding to the top of the saddle lifting rod is a horizontal plane or an upward inclined surface; and in any state The inclined faces each have a portion located outside the rack; thus, the saddle lifting rod is automatically unlocked by the interaction between the inclined surface on the locking portion and the saddle lifting rod when the saddle lifting rod is lifted upward.

Further, the rack is a continuous tooth or a hole disposed between the phases.

Further, the rack has a tooth groove; a side of the tooth groove near the top of the saddle lifting rod is a horizontal plane, or a slope inclined upward with respect to an end near the outer side wall of the lifting rod.

Further, the side wall of the saddle lifting rod is provided with a groove in the longitudinal direction; the tooth rail is located at the bottom of the groove, and the end of the groove near the bottom of the saddle lifting rod is a closed structure.

Further, the locking device further includes a limiting portion and a rotating shaft portion; the rotating shaft portion is a shaft hole; when the handle portion is pulled to disengage the locking portion from the rack rail, the limiting portion and the base sidewall are Contact, the locking device is limited, so that the locking portion can be separated from the rack, but there is always a portion located in the slot.

Further, the locking device is a push-type locking device; the shaft hole is located between the handle portion and the locking portion; and the limiting portion is a convex structure between the shaft hole and the handle portion.

Further, the rotating shaft portion is a shaft hole; the locking device is a pulling type locking device; the locking portion is located between the handle portion and the shaft hole; and the limiting portion is located at one end of the shaft hole relative to the handle portion Lifting structure.

Further, the rotating shaft portion is a shaft hole; the locking device has a slot for mounting a spring at a position corresponding to the shaft hole; the spring is detachably fixedly mounted on the rotating shaft, and an elastic leg thereof The side walls of the locking device are in contact, and the other elastic leg is in contact with the side wall of the base to form an elastic support; so that the locking device always has a tendency to contact the tooth track under the action of the spring.

Further, the side wall of the saddle lifting rod has a card slot; the card slot is closed near the upper end of the saddle lifting rod and opens at the lower end of the saddle lifting rod; the rack is an independent rack; The strip has a tooth groove; the rack is inserted into the tooth gap through the slot opening of the lower end of the saddle lifting rod and is fixedly fixed; the rack may have a protrusion extending through the opening of the tooth groove on the side wall structure.

3, beneficial effects

Compared with the prior art, the technical solution provided by the invention has the following beneficial effects:

1. A bicycle saddle lifting device of the present invention has a simple structure and is convenient to use and maintain.

2. A bicycle saddle lifting device of the present invention can directly raise the saddle to a desired height and automatically lock during use, thereby facilitating user adjustment.

3. A bicycle saddle lifting device according to the present invention, by locking the locking portion and the rack rail, the locking stability is improved, and the service life is also extended.

4. A bicycle saddle lifting device of the present invention can directly mount the base on an existing bicycle frame lifting cylinder for use, thereby saving the cost of the vehicle body.

DRAWINGS

1 is a schematic view showing an assembly structure in Embodiment 1;

2 is a schematic structural view of a saddle lifting rod in Embodiment 1;

3 is a schematic structural view of a base in Embodiment 1;

4 is a schematic structural view of a locking device in Embodiment 1;

Figure 5 is a schematic structural view of a locking device in Embodiment 2;

6 is a schematic structural view of a saddle lifting rod in Embodiment 5

Fig. 7 is a schematic view showing the structure of a rack in the fifth embodiment.

Description of the symbols in the schematic

1, saddle lifting rod; 101, rack; 1011, tooth groove; 102, slot; 103, card slot; 2, base; 201, bracket; 2011, shaft hole; 202, through hole; 3, locking device; 301, shaft hole portion; 302, handle portion; 303, locking portion; 304, limiting portion; 305, slot, hole; 4, frame lifting tube.

Detailed ways

In order to further understand the present invention, the present invention will be described in detail with reference to the accompanying drawings.

The invention is further described below in conjunction with the embodiments.

Example 1

As shown in FIG. 1-4, a bicycle saddle lifting device of the present embodiment includes a saddle lifting rod (1), a base (2), a locking device (3), a spring, a rotating shaft and a frame lifting cylinder ( 4). On the outer side wall of the saddle lifting rod (1), a continuous rack-shaped rack (101) is disposed in the longitudinal direction. The side of the tooth groove (1011) on the rack (101) near the top of the saddle lifting rod (1) is a horizontal plane, or a slope inclined upward with respect to an end close to the outer side wall of the lifting rod (1). The outer side wall of the base (2) is provided with a bracket (201). A shaft hole (2011) for mounting a rotating shaft is disposed on the bracket (201). The base (2) is a tubular structure, and the inner diameter of the upper portion of the base (2) is adapted to the outer diameter of the saddle lifting rod (1), and the inner diameter of the lower portion is adapted to the outer diameter of the frame lifting cylinder (4). The base (2) is sleeved on the top end of the frame lifting cylinder (4), fixedly connected with the frame lifting cylinder (4) or formed integrally with the frame lifting cylinder (4). The saddle lifting rod (1) is mounted in the frame lifting cylinder (4) through the base (2). The base (2) is provided with a through hole (202) near a position corresponding to the bracket (201). The locking device (3) includes a shaft hole portion (301), a locking portion (303), a handle portion (302), and a limiting portion (304). The locking device (3) is fixed to the shaft hole (2011) by passing through the shaft hole portion (301) with a rotating shaft, is mounted on the locking bracket (201), and is rotatable. After the locking device (3) is installed, the end of the locking portion (303) is located at a corresponding position of the through hole (202), and the end portion of the locking portion (303) can be in contact with the rack (101) through the through hole (202); The engagement of the locking portion (303) with the rack (101) achieves locking. The locking portion (303) is a wedge-shaped structure, and a corresponding side of the locking portion (303) and the bottom of the saddle lifting rod (1) is an upward inclined structure, and a side corresponding to the top of the saddle lifting rod (1) is a horizontal plane. Or the upward slope. And in any state, the inclined surface has a portion located outside the rack (101), so that the saddle lifting rod (1) passes between the inclined surface on the locking portion (303) and the saddle lifting rod (1) when the saddle lifting rod (1) is lifted upward. The interactions are implemented automatically unlocked. The handle portion (302) is spaced from the outer sidewall of the saddle lifter (1) to facilitate manipulation of the handle portion (302) to disengage the locking portion (303) from the rack (101). When the locking portion (303) and the rack (101) are engaged, when the saddle lifting rod (1) has a downward pressure, the locking portion (303) and the rack (101) are engaged by the limit and the shaft is rotated. The role of support to achieve self-tightening. The spring is nested on the rotating shaft, and one elastic leg is in contact with the side wall of the locking device (3), and the other elastic leg is in contact with the side wall of the base (2) to form an elastic support; thereby making the locking portion (303) in the spring There is always a tendency to contact the rack (101) under the action of it.

The locking device (3) is a pull-type locking device. The locking portion (304) is between the handle portion (302) and the shaft hole portion (301). The limiting portion (304) is a lifting structure located at one end of the shaft hole portion (301) with respect to the handle portion (302). When the handle portion (302) is pulled to a certain position, the limiting portion (304) abuts against the side wall of the base (2) to limit the locking device (3).

Example 2

As shown in FIG. 5, a bicycle saddle lifting device of this embodiment is basically the same as the main body structure of Embodiment 1, except that the locking device (3) is a push type locking device. The shaft hole portion (301) is located between the handle portion (302) and the locking portion (303). The limiting portion (304) is a convex structure between the shaft hole portion (301) and the handle portion (302). When the handle portion (302) is pressed to a certain position, the limiting portion (304) abuts against the side wall of the base (2) to limit the locking device (3).

Example 3

The bicycle saddle lifting device of this embodiment is basically the same as the main body structures of

Embodiments

1 and 2, except that the rack rails (101) are holes provided between the two. Correspondingly, in any state, the inclined structure on the locking portion (303) has a portion outside the through hole (202); in order to pass the inclined surface on the locking portion (303) when the saddle is stretched upward The interaction with the saddle lifting rod (1) enables automatic unlocking.

Example 4

A bicycle saddle lifting device of this embodiment is basically the same as the main body structure of Embodiment 1-3, except that the side wall of the saddle lifting rod (1) is provided with a groove (102) in the longitudinal direction. The rack (101) is located at the bottom of the slot (102), and the end of the slot (102) at the bottom of the saddle lifting rod (1) is a closed structure. When the handle portion (302) is pulled to disengage the locking portion (303) from the rack (101), the limiting portion (304) limits the locking device (3) by contact with the side wall of the base (2). ; the locking portion (303) can be separated from the rack (101), but the locking portion (303) always has a portion located in the slot (102); thereby preventing the saddle lifting rod (1) from deflecting; (303) is mutually restrained from the closed end of the groove (102) to prevent the saddle lifting rod (1) from being pulled out of the base (2).

Example 5

As shown in FIG. 6-7, the bicycle saddle lifting device of the embodiment is substantially the same as the main body of the embodiment 1-4, and the difference is that the side wall of the saddle lifting rod (1) is a card slot. (103). The card slot (103) is closed near the upper end of the saddle lifting rod (1) and opens at the lower end of the saddle lifting rod (1). The rack (101) is a separate rack. The gullet (1011) is located on the rack. The rack is inserted into the slot (1011) through the opening of the slot (1011) at the lower end of the saddle lifting rod (1) and is fixed in position. The rack may have a raised structure that can pass through the opening of the slot (1011) on the side wall.

The invention and its embodiments have been described above schematically, and the description is not limited thereto, and only one embodiment of the present invention is shown in the drawings, and the actual structure is not limited thereto. Therefore, if the person skilled in the art is inspired by the invention, the structural manners and embodiments similar to the technical solution are not creatively designed, and should belong to the protection scope of the present invention. .

Claims

A bicycle saddle lifting device comprising a saddle lifting rod (1) and a base (2), characterized by: further comprising a locking device (3), a spring, a rotating shaft and a frame lifting cylinder (4); the saddle a tooth rail (101) is disposed on an outer side wall of the lifting rod (1); a bracket (201) is disposed on an outer side wall of the base (2); the base (2) is a tubular structure, and the base The inner diameter of the upper part of the seat (2) is adapted to the outer diameter of the saddle lifting rod (1), and the inner diameter of the lower section is adapted to the outer diameter of the frame lifting cylinder (4); the base (2) is placed on the frame lifting cylinder (4) The top end is fixedly connected with the frame lifting cylinder (4) or integrated with the frame lifting cylinder (4); the saddle lifting rod (1) is installed in the frame lifting cylinder through the base (2); The seat (2) is provided with a through hole (202) near a position corresponding to the bracket (201); the locking device (3) includes a rotating shaft portion, a locking portion (303) and a handle portion (302); the locking device ( 3) fixedly mounted on the bracket (201) and rotatable, after installation, the end of the locking portion (303) is at a position corresponding to the through hole (202), and the end of the locking portion (303) can pass through the through hole ( 202) contacting the rack (101); thereby passing the locking portion (303) and the teeth (101) occlusion effect locking.
A bicycle saddle lifting device according to claim 1, wherein said locking portion (303) has a wedge-shaped structure, and a corresponding side of the locking portion (303) and the bottom portion of the saddle lifting rod (1) is upward. The inclined surface, the side corresponding to the top of the saddle lifting rod (1) is a horizontal plane or an upward inclined surface; and in any state, the inclined surface has a portion located outside the rack (101); thus the saddle lifting rod (1) is When lifting upwards, automatic unlocking is achieved by the interaction between the inclined surface on the locking portion (303) and the saddle lifting rod (1).
A bicycle saddle lifting device according to claim 1, wherein said rack (101) is a continuous tooth or a hole disposed therebetween.
A bicycle saddle lifting device according to claim 1, wherein said tooth rail (101) has a tooth groove (1011); said tooth groove (1011) is adjacent to the top of the saddle lifting rod (1). One side is a horizontal plane, or a slope that is inclined upward with respect to an end close to the outer side wall of the lifting rod (1).
A bicycle saddle lifting device according to claim 1, wherein a side wall of the saddle lifting rod (1) is longitudinally provided with a groove (102); and the tooth rail (101) is located at the groove (102). The bottom, and the end of the groove (102) near the bottom of the saddle lifting rod (1) is a closed structure.
The bicycle saddle lifting device according to claim 5, wherein the locking device (3) further comprises a limiting portion (304) and a rotating shaft portion; the rotating shaft portion is a shaft hole (301); When the handle portion (302) is pulled to disengage the locking portion (303) from the rack (101), the locking device (3) is restricted by the contact of the limiting portion (304) with the side wall of the base (2). The locking portion (303) is separable from the rack but always has a portion located within the slot (102).
A bicycle saddle lifting device according to claim 6, wherein said locking device (3) is a push-type locking device (3); said shaft hole (301) is located at the handle portion (302) and locked The portion (304) is a convex structure between the shaft hole (301) and the handle portion (302).
A bicycle saddle lifting device according to claim 6, wherein said rotating shaft portion is a shaft hole (301); said locking device (3) is a pulling type locking device (3); said locking The portion (303) is located between the handle portion (302) and the shaft hole (301); the limiting portion (304) is a tilting structure located at one end of the shaft hole (301) with respect to the handle portion (302).
A bicycle saddle lifting device according to claim 1, wherein said rotating shaft portion is a shaft hole (301); and said locking device (3) is at a position corresponding to the shaft hole (301). a spring-mounted slot (305); the spring is detachably fixed to the rotating shaft, and one of the elastic legs is in contact with the side wall of the locking device (3), and the other elastic leg is in contact with the side wall of the base (2) The elastic support is formed; so that the locking device (3) always has a tendency to contact the rack (101) under the action of the spring.
A bicycle saddle lifting device according to claim 1, wherein said saddle lifting rod (1) has a card slot (103) on its side wall; said card slot (103) is adjacent to the saddle lifting rod (1) the upper end is closed and opens at the lower end of the saddle lifting rod (1); the rack (101) is an independent rack; the rack is provided with a tooth groove (1011); the rack passes through the saddle The slot (1011) at the lower end of the lifting rod (1) is inserted into the slot (1011) and is fixedly fixed; the rack has a convex structure that can pass through the opening of the slot (1011) on the side wall.