CN211844710U

CN211844710U - Bicycle backrest with locking function

Info

Publication number: CN211844710U
Application number: CN202020213493.8U
Authority: CN
Inventors: 胡莹莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-11-03
Anticipated expiration: 2030-02-26

Abstract

A bicycle backrest with locking function is used for a backseat of a bicycle and comprises a backrest device and a fixing device; the backrest device comprises a first locking piece and a second locking piece, wherein the first locking piece and the second locking piece can be buckled to be locked or separated to be unlocked; when the backrest device swings to the position above the rear seat and is vertical to the rear seat, the backrest device can be used as a backrest, and the fixing device locks the position of the backrest device; or the locking state of the backrest device by the fixing device is released through external force; the first locking piece and the second locking piece can swing into the hub of the rear wheel of the bicycle and are buckled to be locked, and the backrest device serves as a lockset at the moment. The lock can be used as a backrest of a bicycle in a normal state, and when the lock leaves the bicycle, the rear wheel of the bicycle can be locked by the lock, so that the lock is convenient to carry and use.

Description

Bicycle backrest with locking function

Technical Field

The utility model relates to a bicycle field specifically is a bicycle back with lock function.

Background

At present, vehicles such as bicycles, electric motorcycles and the like become transportation tools for people to go out, and the small and medium-sized vehicles need to be locked and prevented from theft by using a carried lockset when a driver leaves. It is comparatively inconvenient to carry the tool to lock out of the door, and drop the loss easily at the in-process of traveling.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems, the utility model provides a pair of bicycle back with lock function makes things convenient for locking of bicycle and carrying of tool to lock.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a bicycle backrest with locking function is used for a backseat of a bicycle and comprises a backrest device and a fixing device; the backrest device comprises a first locking piece and a second locking piece, the rear seat is also provided with a mounting groove, the first end of the first locking piece is rotatably mounted at one end of the mounting groove, and the first end of the second locking piece is movably connected with the mounting groove in the mounting groove; the second end of the first locking piece and the second end of the second locking piece can be buckled to lock or separated to unlock; when the backrest device swings to the position above the rear seat and is vertical to the rear seat, the backrest device is at a first swing position; when the backrest device swings to a position below the rear seat and close to the hub of the rear wheel, the second swing position is set; when the backrest device is in the first swinging position, the fixing device locks the position of the backrest device relative to the rear seat; or the locking state of the backrest device by the fixing device can be released through external force; when the backrest device is in the second swing position, the second end of the second locking piece can pass through the hub of the rear wheel and is buckled with the first locking piece to be locked.

Preferably, a first limiting boss is arranged in the mounting groove, a first limiting groove is formed in the first end of the first locking piece, the first limiting boss is rotatably connected with the first limiting groove in the first limiting groove, a second limiting groove is further formed in the mounting groove, a second limiting boss is arranged on the first end of the second locking piece, and the second limiting boss is movably connected with the second limiting groove in the second limiting groove.

Preferably, the tail part of the rear seat is also provided with a fixed box, a cavity is arranged in the fixed box, the fixing device is arranged in the cavity, the fixing device comprises a clamping piece and an elastic resetting piece, and the side wall of the mounting groove is also provided with a through hole for communicating the fixed box; the first end of the second locking piece is also provided with a positioning hole, the clamping piece is provided with a blocking piece, one end of the blocking piece is provided with a third limiting boss, and when the backrest device is positioned at the first swinging position, the third limiting boss can penetrate through the through hole and be inserted into the positioning hole; the other end of the baffle is provided with a pull rod which penetrates through one end of the fixed box far away from the through hole and is connected with the fixed box in a sliding way; when the pull rod is pulled by an external force to enable the third limiting boss to be separated from the positioning hole, the backrest device can swing from the first swing position to the second swing position; the elastic reset piece is sleeved on the pull rod, one end of the elastic reset piece is abutted to the separation blade, and the other end of the elastic reset piece is abutted to one end, away from the through hole, of the fixed box.

Preferably, the bicycle backrest with the locking function further comprises an inclined strut, one end of the inclined strut is fixedly connected with the shaft connecting part of the frame and the rear wheel axle, and the other end of the inclined strut is fixedly connected with the bottom of the fixed box.

Advantageous effects

The utility model has the advantages that: a bicycle backrest with locking function is used for a backseat of a bicycle and comprises a backrest device and a fixing device; the backrest device comprises a first locking piece and a second locking piece, wherein the first locking piece and the second locking piece can be buckled to be locked or separated to be unlocked; when the backrest device swings to the position above the rear seat and is vertical to the rear seat, the backrest device can be used as a backrest, and the fixing device locks the position of the backrest device; or the locking state of the backrest device by the fixing device is released through external force; the first locking piece and the second locking piece can swing into the hub of the rear wheel of the bicycle and are buckled to be locked, and the backrest device serves as a lockset at the moment. The lock can be used as a backrest of a bicycle in a normal state, and when the lock leaves the bicycle, the rear wheel of the bicycle can be locked by the lock, so that the lock is convenient to carry and use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention,

in the drawings:

fig. 1 shows a schematic structural view of an embodiment of the present invention as a backrest;

fig. 2 shows a schematic structural view of an embodiment of the present invention as a lock;

fig. 3 shows a schematic overall structure diagram of an embodiment of the present invention;

FIG. 4 shows a schematic structural view of the fixture;

fig. 5 shows a schematic view of the first locking member and the second locking member in the installation groove;

FIG. 6 is a schematic view showing an inner structure of the mounting groove;

FIG. 7 shows a schematic structural view of the holding tank;

FIG. 8 illustrates a relationship between the catch and the second lock;

figure 9 shows a schematic view of the first lock;

in the figure, a rear seat 1, a backrest device 2, a fixing device 3, an inclined strut 4, a mounting groove 10, a fixing box 11, a first limiting boss 101, a second limiting groove 102, a through hole 103, a first locking piece 21, a second locking piece 22, a first limiting groove 210, a second limiting boss 220, a positioning hole 221, a clamping piece 30, an elastic resetting piece 31, a blocking piece 300, a third limiting boss 301 and a pull rod 302 are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-9, a bicycle backrest with locking function for a rear seat 1 of a bicycle comprises a backrest device 2 and a fixing device 3; the backrest device 2 comprises a first locking piece 21 and a second locking piece 22, the rear seat 1 is further provided with a mounting groove 10, a first end of the first locking piece 21 is rotatably mounted at one end of the mounting groove 10, a first end of the second locking piece 22 is movably connected with the mounting groove in the mounting groove, and the movable connection comprises a sliding connection mode, a rotating connection mode and a combination connection mode of the sliding connection mode and the rotating connection mode; the second end of the first locker 21 and the second end of the second locker 22 may be fastened to be locked or separated to be unlocked; the first swing position is set when the backrest device 2 swings to the position above the rear seat 1 and is vertical to the rear seat 1, and the second swing position is set when the backrest device 2 swings to the position below the rear seat 1 and close to the hub of the rear wheel; when the backrest device 2 is in the first swing position, the fixing device 3 locks the position of the backrest device 2 relative to the rear seat 1; or the locking state of the backrest device 2 by the fixing device 3 can be released by external force; when the backrest device 2 is in the second swing position, the second end of the second locking member 22 can pass through the hub of the rear wheel and be locked by being engaged with the second end of the first locking member 21.

Specifically, the bicycle is as the very commonly used vehicle in modern society, and the frequency of use is higher, and the bicycle is as middle-size and small-size vehicle, and its theftproof performance is relatively poor, locks for the bicycle through installing the tool to lock additional usually, and this wherein, because use the bicycle as the instrument of riding instead of walk when going out, all need carry corresponding tool to lock at every turn, so the carrying and the arrangement of tool to lock have caused the trouble to the driver. The embodiment of the utility model provides an in, the back of installation on the bicycle backseat 1 can use as the tool to lock when the user leaves the bicycle, locks for the rear wheel of bicycle. After the second end of the first locking piece 21 and the second end of the second locking piece 22 are locked, the first locking piece swings to the first swing position, the first locking piece can be used as a backrest of a bicycle, and the position of the backrest device 2 is fixed by the fixing device 3, so that the backrest device 2 is prevented from swinging downwards due to stress, and a passenger sitting on the rear seat 1 is prevented from falling. After the driver reaches the destination, the second end of the first locking piece 21 and the second end of the second locking piece 22 can be unlocked, then the locking state of the fixing device 3 on the backrest device 2 is released by external force, the backrest device 2 is swung to a second swinging position, the second end of the second locking piece 22 penetrates through the hub of the rear wheel and is buckled with the second end of the first locking piece 21, and then the rear wheel of the bicycle can be locked, so that the anti-theft function is provided for the bicycle. The bicycle backrest has the functions of the lock and the backrest simultaneously, a user can carry the bicycle lock conveniently, and the lock is easy to lock the bicycle.

Further, a first limiting boss 101 is arranged in the mounting groove 10, a first end of the first locking piece 21 is provided with a first limiting groove 210, the first limiting boss 101 is rotatably connected with the first limiting groove 210 in the first limiting groove 210, a second limiting groove 102 is further arranged in the mounting groove 10, a first end of the second locking piece 22 is provided with a second limiting boss 220, and the second limiting boss 220 is movably connected with the second limiting groove 102 in the second limiting groove 102. The first locking piece 21 can only rotate relative to the rear seat 1 and cannot slide through the first limiting boss 101 and the first limiting groove 210, so that the stability of the backrest device 2 when used as a backrest can be ensured.

Further, when the backrest device 2 is in the first swing position, it can be used as a backrest of a bicycle, and at this time, the fixing device 3 is required to fix the backrest device 2, so as to ensure that the backrest device 2 does not swing greatly. The tail part of the rear seat 1 is also provided with a fixed box 11, a cavity is arranged in the fixed box 11, the fixing device 3 is arranged in the cavity, the fixing device 3 comprises a clamping piece 30 and an elastic resetting piece 31, and the side wall of the mounting groove 10 is also provided with a through hole 103 to communicate with the fixed box 11;

the first end of the second locking piece 22 is further provided with a positioning hole 221, the clamping piece 30 is provided with a blocking piece 300, one end of the blocking piece 300 is provided with a third limiting boss 301, and when the backrest device 2 is located at the first swinging position, the third limiting boss 301 penetrates through the through hole 103 and is inserted into the positioning hole 221; the other end of the baffle 300 is provided with a pull rod 302, and the pull rod 302 penetrates through one end of the fixed box 11 far away from the through hole 103 and is connected with the fixed box in a sliding manner; when the pull rod 302 is pulled by an external force to separate the third limiting boss 301 from the positioning hole 221, the backrest device 2 can swing from the first swing position to the second swing position; the elastic restoring member 31 is sleeved on the pull rod 302, and one end of the elastic restoring member abuts against the blocking piece 300, and the other end of the elastic restoring member abuts against one end of the fixed box 11 far away from the through hole 103.

By inserting the third limit projection 301 into the through hole 103 and the positioning hole 221, the position of the second locker 22 with respect to the rear seat 1 is fixed, thereby fixing the entire backrest device 2. When the third limiting projection 301 is disengaged from the positioning hole 221, the second locking member 22 can move, so that the first locking member 21 and the second locking member 22 can swing downwards, and the fixing device 3 loses effectiveness; when the second locking piece 22 swings to the first swing position again, the clip 30 allows the third limiting projection 301 to be snapped into the positioning hole 221 again due to the elastic force of the elastic restoring piece 31, thereby restoring the effect.

Furthermore, this bicycle back with locking function still includes bracing 4, and the one end and the frame of bracing 4 and rear wheel hub connection department fixed connection, the other end and fixed box 11 bottom fixed connection. The vast majority of pressure applied to the backrest device 2 by the back of a human body is borne by the clamping piece 30 and is transmitted to the fixed box 11, the requirement on the load of the fixed box 11 is high, and the bearing capacity of the fixed box 11 can be improved by adding the inclined strut 4.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates 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 application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. 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 refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bicycle backrest with locking function for a rear seat (1) of a bicycle, characterized by comprising backrest means (2) and fixing means (3);

the backrest device (2) comprises a first locking piece (21) and a second locking piece (22), a mounting groove (10) is further formed in the rear seat (1), the first end of the first locking piece (21) is rotatably mounted at one end of the mounting groove (10), and the first end of the second locking piece (22) is movably connected with the mounting groove in the mounting groove;

the second end of the first locking piece (21) and the second end of the second locking piece (22) can be buckled to be locked or separated to be unlocked;

the backrest device (2) is at a first swinging position when swinging to the position above the rear seat (1) and vertical to the rear seat (1), and is at a second swinging position when swinging to the position below the rear seat (1) and close to the hub of the rear wheel;

when the backrest device (2) is in the first swing position, the fixing device (3) locks the position of the backrest device (2) relative to the rear seat (1); or the locking state of the backrest device (2) by the fixing device (3) can be released through external force; when the backrest device (2) is at the second swinging position, the second end of the second locking piece (22) can pass through the hub of the rear wheel and is buckled with the second end of the first locking piece (21) to be locked.

2. The bicycle backrest with a locking function according to claim 1, wherein a first limiting boss (101) is disposed in the mounting groove (10), a first limiting groove (210) is disposed at a first end of the first locking member (21), the first limiting boss (101) is rotatably connected with the first limiting groove (210) in the first limiting groove (210), a second limiting groove (102) is further disposed in the mounting groove (10), a second limiting boss (220) is disposed at a first end of the second locking member (22), and the second limiting boss (220) is movably connected with the second limiting groove (102) in the second limiting groove (102).

3. The bicycle backrest with the locking function as claimed in claim 1, wherein a fixing box (11) is further provided at the tail of the rear seat (1), a cavity is provided in the fixing box (11), the fixing device (3) is installed in the cavity, the fixing device (3) comprises a clamping piece (30) and an elastic reset piece (31), and a through hole (103) is further provided on the side wall of the installation groove (10) to communicate with the fixing box (11);

a positioning hole (221) is further formed in the first end of the second locking piece (22), a blocking piece (300) is arranged on the clamping piece (30), a third limiting boss (301) is arranged at one end of the blocking piece (300), and when the backrest device (2) is located at the first swinging position, the third limiting boss (301) can penetrate through the through hole (103) and be inserted into the positioning hole (221); the other end of the baffle plate (300) is provided with a pull rod (302), and the pull rod (302) penetrates through one end, far away from the through hole (103), of the fixed box (11) and is connected with the fixed box in a sliding mode;

when the pull rod (302) is pulled by an external force to enable the third limiting boss (301) to be separated from the positioning hole (221), the backrest device (2) can swing from the first swing position to the second swing position;

the elastic reset piece (31) is sleeved on the pull rod (302), one end of the elastic reset piece is abutted against the baffle sheet (300), and the other end of the elastic reset piece is abutted against one end, far away from the through hole (103), of the fixed box (11).

4. The bicycle backrest with the locking function as claimed in claim 3, further comprising an inclined strut (4), wherein one end of the inclined strut (4) is fixedly connected with the axle connection part of the frame and the rear wheel, and the other end of the inclined strut is fixedly connected with the bottom of the fixed box (11).