CN221214347U - Foldable structure of child seat and child seat support assembly - Google Patents

Abstract

The utility model provides a foldable structure of a child seat and a child seat support assembly, and aims to solve the problem that a foldable child seat support is inconvenient to fold. Compared with the prior art, the foldable scheme provided by the utility model improves the problem of inconvenient use of the plug pin type folding and further improves the safety. Specifically, the child seat comprises a rotating shaft seat and a seat support, and the movable limit is respectively arranged in two states of child sitting and seat accommodating on the basis of the normal shaft and hole rotating fit, so that the use state of the foldable structure is fixed, a plug pin is not required to be pulled out, the use is more convenient, and the blocking phenomenon is avoided; under the riding state, namely the horizontal state of the bracket is provided with a safety limit, the seat bracket is prevented from rotating downwards, and therefore the riding safety of children is improved.

Description

Foldable structure of child seat and child seat support assembly

Technical Field

The utility model relates to the technical field of auxiliary accessories of electric bicycles, in particular to a foldable structure of a child seat and a child seat assembly.

Background

In the field of two-wheeled household mobility aids, in particular to electric bicycles, although a plurality of foldable brackets of front-row child seats exist on the market to meet the demands of riders for carrying children, the folding scheme is mainly to set up a bolt at a rotating joint to establish or break the connection, and the structure is inconvenient to use due to frequent pulling of the bolt when frequently folded, and is easy to cause the phenomena of dead locking, incapability of folding and the like due to mechanical faults; on the other hand, the pulling of the bolt requires a larger force, which is very inconvenient for children.

Disclosure of utility model

Aiming at the defects in the prior art, the application provides a foldable structure of a child seat and a child seat assembly, wherein the movable limit is respectively arranged at a child sitting position and a seat storage position on the basis of the rotation fit of a conventional shaft and a hole, so that the use state of the foldable structure is fixed; under the riding state, namely the horizontal state of the bracket, the safety limit is arranged, so that the bracket is prevented from rotating when bearing.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a but child seat's beta structure, its includes pivot seat and seat support, realize rotating through wearing to establish the pivot subassembly between pivot seat and the seat support and connect, the seat support is close to pivoted one end and is provided with the first spacing hole that is used for fixing seat support horizontality and is used for fixing seat support to accomodate the second spacing hole of state, still including setting up the activity spacing unit on the pivot seat, activity spacing unit selectively gets into first spacing hole or second spacing hole under different rotation states, the seat support is close to the outline of rotating one side and is the semicircle cross-section.

Further, the seat support comprises a support main body and a limiting sleeve, wherein the support main body is close to a semicircular arc section of one end section of the rotating side, the limiting sleeve is fixedly connected inside one end of the support main body, and the first limiting hole and the second limiting hole are formed in the arc-shaped outline of the limiting sleeve.

Further, the rotating shaft assembly comprises a nut penetrating through the rotating shaft seat and the seat support, and the other end of the nut is fixed through a screw.

Further, a gasket is arranged between the end faces of the nut and the screw, which are opposite to the rotating shaft seat.

Further, the movable limiting unit comprises a limiting column, a through hole is formed in the middle of the rotating shaft seat, a limiting ring is formed in the outline of the limiting column, the limiting column is arranged in the through hole through the limiting ring, an elastic piece is arranged in the limiting column, and a limiting bead is arranged at one end of the elastic piece extending out of the end face of the limiting column.

Further, the movable limiting unit is a wave bead screw.

In another aspect, the application provides a child seat support assembly comprising a main spindle of a faucet, a foldable structure of a child seat disposed on the main spindle of the faucet, and a seat cushion disposed on the seat support.

Further, a positioning hole is formed in the main shaft of the faucet, and the rotating shaft seat is inserted into the positioning hole through the movable limiting unit for positioning and installation.

The beneficial effects of the utility model are as follows:

Compared with the prior art, the foldable technical scheme provided by the utility model improves the problem of inconvenient use of the plug pin type folding and has higher safety. Specifically, the child seat comprises a rotating shaft seat and a seat support, and the movable limit is respectively arranged on the child seat and the seat storage on the basis of the normal shaft and the hole in a rotating fit manner, so that the use state of the foldable structure is fixed, a plug pin is not required to be pulled out, the use is more convenient, and the blocking phenomenon is avoided; under the riding state, namely the horizontal state of the bracket is provided with a safety limit, the seat bracket is prevented from rotating downwards, and therefore the riding safety of children is improved.

Drawings

FIG. 1 is a schematic perspective view of a child seat in accordance with the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic perspective view of the seat support of FIG. 1;

FIG. 4 is an exploded view of the movable stop unit of FIG. 1;

FIG. 5 is a schematic perspective view of a child seat support assembly of the present utility model;

Fig. 6 is an exploded view of fig. 5.

Wherein: 1. a rotating shaft seat; 11. a through hole;

2. A seat support; 21. a holder main body; 22. a limit sleeve; 221. a first limiting hole; 222. a second limiting hole;

3. a spindle assembly; 31. a nut; 32. a screw; 33. a gasket;

4. A movable limiting unit; 41. a limit column; 411. a limiting ring; 42. an elastic member; 43. limiting beads;

5. a tap spindle; 51. positioning holes; 6. and (5) a cushion.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings.

The utility model provides a foldable structure of a child seat, which aims to solve the problem that a foldable child seat support 2 is inconvenient to fold, and meanwhile, a limit is arranged at the lower limit part of the support for taking a child, so that downward rotation is prevented, and the safety is improved.

Specifically, as shown in fig. 1 and fig. 2, the utility model comprises a rotating shaft seat 1 and a seat support 2, the rotating shaft seat 1 and the seat support 2 are rotatably connected through penetrating a rotating shaft assembly 3, a first limiting hole 221 for fixing the horizontal state of the seat support 2 and a second limiting hole 222 for fixing the accommodating state of the seat support 2 are arranged at one end of the seat support 2 close to rotation, the utility model further comprises a movable limiting unit 4 arranged on the rotating shaft seat 1, the movable limiting unit 4 selectively enters the first limiting hole 221 or the second limiting hole 222 in different rotating states, and the outline of the seat support 2 close to one side of rotation is a semicircular arc section.

Through the technical scheme, based on conventional shaft hole running fit, a first limiting hole 221 and a second limiting hole 222 are formed in the end of the seat support 2, and a movable limiting unit 4 is arranged in the end of the rotating shaft seat 1, so that when the seat support 2 is rotated to be horizontal, the movable limiting unit 4 enters the first limiting hole 221; when the seat support 2 is rotated to be non-horizontal (vertical or inclined), the movable restricting unit 4 enters the second restricting hole 222 to achieve a relatively fixed state.

In some embodiments, as shown in fig. 3, the seat support 2 includes a support body 21 and a stop collar 22, wherein the support body 21 has a semicircular arc section near an end section of a rotation side, the stop collar 22 is fixedly connected inside an end of the support body 21, and the first stop hole 221 and the second stop hole 222 are formed on an arc-shaped outline of the stop collar 22.

It should be noted that, in view of cost and processing difficulty, the bracket main body 21 and the stop collar 22 of the present utility model are preferably processed separately and welded into an integral form; in other embodiments, the bracket body 21 and the stop collar 22 can also be formed as the seat bracket 2 by integral molding, which is not limited herein.

In particular, the end profile of the bracket main body 21 forms an outer semicircle profile, that is, when the child sits in the child seat and rotates relative to the storage state, the end surface of the arc profile does not cause rotation interference of the bracket main body 21; when the child sits, the seat support 2 needs to rotate to the horizontal end face, but cannot exceed the negative angle of the downward horizontal end face, and at the moment, the lower edge of the support main body 21 is a right angle, so that the support main body 21 is prevented from continuing to rotate downwards, and supporting force and safety limit are provided for the child to sit.

In some embodiments, the spindle assembly 3 includes a nut 31 penetrating through the spindle base 1 and the seat bracket 2, and the other end of the nut 31 is fixed by a screw 32. A gasket 33 is also arranged between the nut 31 and the end face of the screw 32 opposite to the rotating shaft seat 1; the nut 31 and the screw 32 cooperate for the purpose of a spindle, wherein the washer 33 serves to reduce friction and to improve stability.

In one embodiment, as shown in fig. 4, the movable limiting unit 4 includes a limiting post 41, a through hole 11 is formed in the middle of the rotating shaft seat 1, a limiting ring 411 is formed on the outer contour of the limiting post 41, the limiting post 41 is disposed in the through hole 11 through the limiting ring 411, an elastic member 42 is disposed in the limiting post 41, and a limiting bead 43 is disposed at one end of the elastic member 42 extending out of the end face of the limiting post 41; in this embodiment, the elastic member 42 can be a spring, and in other embodiments, including but not limited to, this.

In another embodiment, the movable limiting unit 4 is a ball screw, and the outer part of the movable limiting unit is provided with threads, so that the movable limiting unit can be fixed on the foundation through the threads.

A further aspect provides a child seat support 2 assembly comprising a tap spindle 5, and a child seat foldable structure provided on the tap spindle 5, as shown in fig. 5 and 6, and a seat cushion 6 provided on the seat support 2. In one embodiment, the movable limiting unit 4 adopts a structure shown in fig. 4, a general positioning hole 51 is formed in the main faucet shaft 5, and the rotating shaft seat 1 is inserted into the positioning hole 51 through the limiting column 41 and positioned and installed in a welding mode; in another embodiment, the movable limiting unit 4 adopts a ball screw, the main shaft 5 of the tap is provided with a positioning hole 51 internally provided with threads, and the movable limiting unit 4 is installed on the main shaft 5 of the tap by connecting the external threads of the ball screw with the threads arranged in the positioning hole 51. When in use, the positioning is firstly carried out, and one side end face of the rotating shaft seat 1 is welded and fixed on the main shaft 5 of the faucet after the positioning.

The working principle of the utility model is as follows:

Compared with the prior art, the foldable scheme of the child seat is provided for an electric bicycle or other adaptable two-wheeled riding tool, so that the problem of inconvenient use of plug pin type folding is solved, and meanwhile, the safety is higher. Specifically, the folding seat comprises a rotating shaft seat 1 and a seat support 2, and the movable limit is respectively arranged on the child seat and the seat storage on the basis of the normal shaft and the hole in a rotating fit manner, so that the use state of the folding structure is fixed; under the riding state, namely the horizontal state of the bracket, the safety limit is arranged, so that the bracket is protected to rotate when bearing.

The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.

Claims (8)

1. A collapsible structure for a child seat, characterized by: including pivot seat (1) and seat support (2), realize rotating through wearing to establish pivot subassembly (3) between pivot seat (1) and seat support (2) and connect, seat support (2) are close to pivoted one end and are provided with first spacing hole (221) and second spacing hole (222) that are used for fixed seat support (2) horizontality and are used for fixed seat support (2) to accomodate the state, still including setting up activity spacing unit (4) on pivot seat (1), activity spacing unit (4) selectively get into first spacing hole (221) or second spacing hole (222) under different rotation states, the outline that seat support (2) are close to one side of rotation is the semicircle cross-section.

2. A child seat collapsible structure according to claim 1, wherein: the seat support (2) comprises a support main body (21) and a limiting sleeve (22), wherein the support main body (21) is close to a semicircular arc section of one end section of a rotating side, the limiting sleeve (22) is fixedly connected inside one end of the support main body (21), and a first limiting hole (221) and a second limiting hole (222) are formed in the arc-shaped outline of the limiting sleeve (22).

3. A child seat collapsible structure according to claim 1, wherein: the rotating shaft assembly (3) comprises a nut (31) penetrating through the rotating shaft seat (1) and the seat support (2), and the other end of the nut (31) is fixed through a screw (32).

4. A child seat collapsible structure according to claim 3, wherein: a gasket (33) is further arranged between the nut (31) and the end face of the screw (32) opposite to the rotating shaft seat (1).

5. A child seat collapsible structure according to claim 1, wherein: the movable limiting unit (4) comprises a limiting column (41), a through hole (11) is formed in the middle of the rotating shaft seat (1), a limiting ring (411) is formed in the outer profile of the limiting column (41), the limiting column (41) is arranged in the through hole (11) through the limiting ring (411), an elastic piece (42) is arranged in the limiting column (41), and one end, extending out of the end face of the limiting column (41), of the elastic piece (42) is provided with a limiting bead (43).

6. A child seat collapsible structure according to claim 1, wherein: the movable limiting unit (4) is a wave bead screw.

7. A child seat support assembly, characterized in that: comprising a tap spindle (5) and a folding structure of a child seat according to any one of claims 1-6 arranged on the tap spindle (5), further comprising a seat cushion (6), said seat cushion (6) being arranged on the seat support (2).

8. The child seat support assembly of claim 7, wherein: the faucet spindle (5) is provided with a positioning hole (51), and the rotating shaft seat (1) is inserted into the positioning hole (51) through the movable limiting unit (4) for positioning and installation.