CN202620132U

CN202620132U - Turning locating mechanism of walking-aid wheel group

Info

Publication number: CN202620132U
Application number: CN 201220283116
Authority: CN
Inventors: 黄保山
Original assignee: Zhongshan Longcheng Daily Products Co Ltd
Current assignee: SHANGHAI LERADO DAILY ARTICLE CO., LTD.
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2012-12-26
Anticipated expiration: 2022-06-15

Abstract

The utility model discloses a turning locating mechanism of a walking-air wheel group. The turning locating mechanism of the walking-aid wheel group at least comprises a front wheel seat, a front wheel group, a locating pole, and an operating component which is used to lift and lock the locating pole, wherein the front wheel seat is arranged at the lower end of a skeleton of a walking-aid car, an axial guide groove is arranged inside the front wheel seat, a retaining groove stretches out of one side of the axial guide groove. The front wheel group is connected below the front wheel seat through a vertical shaft pole in rotating mode, and a locating groove is arranged at the upper end of the front wheel group. The locating pole is provided with a horizontal convex portion, the locating pole is telescopically arranged in the axial guide groove, an elastic component enables the locating pole to be stretched into the axial guide groove and clamped into the locating groove so that the front wheel group is locked in a fixed direction. The operating component is pivoted with the front wheel seat, and the operating component separates the lower end of the locating pole from the locating groove so that the front wheel group is unlocked and rotates freely. The turning locating mechanism of the walking-aid wheel group can be installed below the skeleton of the walking-aid car, and is capable of locking the front wheel group when the walking-aid car needs to forward straightly, and unlocking the front wheel group when the walking-aid car needs to flexibly turn, and recovering free rotation state. The turning locating mechanism of the walking-aid wheel group is simple in structure and practical.

Description

A kind of step set of wheels that helps turns to detent mechanism

Technical field

This utility model relates to a kind of detent mechanism, and particularly a kind of being contained in helped under the step car skeleton, before making wheels can locking direction and the step set of wheels that helps of the turn state that affranchises turn to detent mechanism.

Background technology

Help the step car can assist old man's walking, also can help personage weak or that carry out rehabilitation to practise walking,, prevent the accident of falling by the support that mobile is provided.

For the support of mobile is provided, wheels and back wheels before the lower end that helps the step car is provided with, wherein the back wheels have brake mechanism, can't left and rightly circle round usually; And, help the front-wheel of step car can left and rightly freely to turn round mostly for the characteristic of flexible turning is provided.

But too flexible rotating front-wheel is wayward, and especially health can't keep balance, when very relying on its support that mobile is provided, more is difficult to keep helping step car straight line moving forward, causes the danger of overturning easily.

The utility model content

The purpose of this utility model is to provide a kind of being contained in to help under the step car skeleton, before making wheels can locking direction and the step set of wheels that helps of the turn state that affranchises turn to detent mechanism.

A kind of step set of wheels that helps turns to detent mechanism, comprises at least:

Wheel seat before one is located at one and is helped the lower end that goes on foot the car skeleton, and inside is provided with an axial channel, and in the other maintenance groove of stretching of a side of axial channel;

Wheels before one are coupling in preceding wheel seat below via a vertical axostylus axostyle pivotally, and the upper end is provided with a locating slot;

A positioning rod is provided with a horizontal protuberance; Said locating rod telescopically is installed in the axial channel, makes its maintenance stretch out this axial channel and snap in this locating slot by an elastic parts, with should before wheels be locked in a fixed-direction;

One in order to rise and to lock the operating parts of this locating rod, is articulated in preceding wheel seat, and this operating parts breaks away from this locating slot with the lower end of this locating rod, thus these preceding wheels are unlocked and free revolution.

The step set of wheels that helps of this utility model turns to detent mechanism; Can be contained in and help under the step car skeleton,, when needs are turned flexibly, remove locking preceding wheels helping the step car to need straight ahead that preceding wheels are locked; The turn state that affranchises, simple structure of this utility model and practicality.

Description of drawings

Fig. 1 helps step car skeleton schematic perspective view for this utility model is installed on.

Fig. 2 is this utility model member exploded perspective sketch map.

Fig. 3 separates schematic side view for this utility model wheel seat with wheels.

Fig. 4 is directed for wheels and the part enlarged diagram.

Fig. 5 freely turns to generalized section for wheels are.

Fig. 6 freely turns to and the part enlarged diagram for wheels are.

Fig. 7 is directed generalized section for wheels.

[primary clustering symbol description]

2	Upper support frame	3	End bracing frame
				4	Horizontal folding group	5	Preceding wheel seat
6	Preceding wheels	7	Detent mechanism
				10	Help step car skeleton	21	Handle portion
22	Brake mechanism	23	Base
				24	Connection rod set	31	Back wheels
51	Vertical axostylus axostyle	52	Axial channel
				70	Keep the edge	71	Locating slot
72	Keep groove	73	Locating rod
				74	Elastic parts	75	Horizontal protuberance
76	Operating parts	77	The operating side
				78	The pushing and withstanding end	79	Push away top arc groove

The specific embodiment

The help step set of wheels extremely shown in Figure 7 like Fig. 1 turns to the embodiment of detent mechanism 7, comprises at least: wheel seat 5, one preceding wheels 6, a positioning rod 73 and an operating parts 76 before one.Wherein preceding wheel seat 5 is located at the lower end that helps step car skeleton 10, and inside is provided with an axial channel 52, and in the other maintenance groove 72 of stretching of a side of axial channel 52.

Helping that present embodiment is used goes on foot car skeleton 10; Can be locked in one launches stationary state and folds to become a folding state; Comprise a pair of upper support frame 2, connect an end bracing frame 3 respectively in the lower end of each upper support frame 2, and before an end of each end bracing frame 3 or lower end connect one wheel seat 5.In addition, between this is to upper support frame 2 or end bracing frame 3, can connect a horizontal folding group 4.The horizontal folding group 4 of present embodiment comprises the pair of cross rod member, is able to oppositely open the back locking near reaching each other in order to laterally to connect and to drive, to make the upper support frame 2 and the end bracing frame 3 that help step car both sides, produces folding, reduces the effect that takes up room.

Can establish a handle portion 21 at this respectively to upper support frame 2 upper ends, support or pass and help the step car so that action to be provided.In handle portion 21 brake mechanism 22 is set and supplies interlocks to be located at the brake mechanism of back wheels 31, with operation help the step car brake, slow down or make and help the step car to be parked in the original place.

The lower end of each upper support frame 2 can be through bracing frame 3 at the bottom of a base 23 connections.In addition, also can between each upper support frame 2 and end bracing frame 3, be provided with a connection rod set 24, so that upper support frame 2 is able to fold (figure does not show) longitudinally with respect to end bracing frame 3.Bracing frame of the applied end of present embodiment 3 is to be coupling in back wheels 31 with the rear end, wheel seat 5 before connecting with front end.Wheels 6 before preceding wheel seat 5 is coupling through a vertical axostylus axostyle 51, wheels 6 can freely circle round along vertical axostylus axostyle 51 before making, and help the direction of advance that goes on foot car to change neatly.

Preceding wheels 6 can left and rightly be coupling in the below of preceding wheel seat 5 pivotally, connect a front-wheel down, and the upper end is provided with a locating slot 71.

Locating rod 73 telescopicallies are installed in the axial channel 52 of preceding wheel seat 5, and are provided with a horizontal protuberance 75 towards a side, make its bullet that keeps down stretch out axial channel 52 to snap in the locating slot 71, so that preceding wheels 6 are locked in a fixed-direction by an elastic parts 74.The elastic parts 74 of present embodiment can be a compression spring, between wheel seat 5 and the locating rod 73, for example can be installed in the upper end of axial channel 52 before being installed on, and uses pushing locating rod 73 down, makes locating rod 73 keep snapping within the locating slot 71.

Operating parts 76 is articulated in preceding wheel seat 5, in order to by the operation of pulling or rotating, rises and lock in place bar 73, makes the lower end of locating rod 73 be able to break away from locating slot 71, wheels 6 thereby unlock and be able to freely left and right revolution before making.

The operating parts 76 of present embodiment is coupling in preceding wheel seat 5, is provided with an operating side 77 and a pushing and withstanding end 78.Wherein pushing and withstanding end 78 is horizontal protuberance 75 butts with locating rod 73, by pulling or rotating operation end 77 and then rotates pushing and withstanding end 78, locating rod 73 is upwards risen and withdrawal axial channel 52.

Pushing and withstanding end 78 be provided with one be indent push away top arc groove 79, and be provided with a maintenance edge 70 in a side that pushes away top arc groove 79.When locating rod 73 downward bullets are stretched and when snapping in locating slot 71, laterally protuberance 75 with keep edge 70 butts; When rise locating rod 73 made disengaging locating slot 71, laterally protuberance 75 pushed away top arc groove 79 from keeping edge 70 to slide into.The effect that pushes away top arc groove 79 is laterally horizontal protuberance 75 to be headed into to keep groove 72, makes locating rod 73 thereby can't stretch by the downward bullet of the elastic force of elastic parts 74.

When desire is recovered the locking of preceding wheels 6, can pull or rotating operation spare 76, what make pushing and withstanding end 78 pushes away the top arc groove 79 horizontal protuberance 75 that slips away, and lets locating rod 73 stretch by the downward bullet of the elastic force of elastic parts 74 again and snaps in locating slot 71.

In the time of in locating rod 73 snaps in locating slot 71, laterally protuberance 75 is connected to the maintenance edge 70 of operating parts 76 again.When desire is removed the locking of preceding wheels 6; Can pull again or the operating side 77 of rotating operation spare 76; Make the maintenance edge 70 of pushing and withstanding end 78 praise horizontal protuberance 75 and rise locating rod 73; Horizontal protuberance 75 is pushed away in the top arc groove 79 along keeping edge 70 to get into, horizontal protuberance 75 is snapped in keep in the groove 72 to stop locating rod 73 downward bullets to be stretched.

The step set of wheels that helps of this utility model turns to detent mechanism, and simple structure and practicality can be in helping the step car to need straight ahead with 6 lockings of preceding wheels, and when needs are turned flexibly, remove the locking to preceding wheels 6.Utilization pushes away top arc groove 79 horizontal protuberance 75 is headed into the design that keeps groove 72, make locating rod 73 can the shock conditions in advancing under automatically down bullet stretch, the top of wheels 6 before the friction and cause to damage or use and go up puzzlement has advantages of high practicability.

Claims

1. one kind is helped the step set of wheels to turn to detent mechanism, comprises at least:

2. the step set of wheels that helps according to claim 1 turns to detent mechanism; It is characterized in that; The said step car skeleton that helps comprises a pair of upper support frame, connects an end bracing frame respectively in the lower end of each upper support frame, and between this is to upper support frame, connects a horizontal folding group.

3. the step set of wheels that helps according to claim 2 turns to detent mechanism, it is characterized in that the lower end of the said front-wheel base device bracing frame end of in.

4. the step set of wheels that helps according to claim 2 turns to detent mechanism, it is characterized in that said horizontal folding group comprises the pair of cross rod member, in order to laterally to drive this to upper support frame and end bracing frame, makes each other and oppositely opens the back locking near reaching.

5. the step set of wheels that helps according to claim 1 turns to detent mechanism, it is characterized in that, also comprise an elastic parts, said elastic parts is installed between preceding wheel seat and the locating rod.

6. the step set of wheels that helps according to claim 5 turns to detent mechanism, it is characterized in that, said elastic parts is a compression spring.

7. the step set of wheels that helps according to claim 1 turns to detent mechanism; It is characterized in that; Said operating parts is coupling in preceding wheel seat, is provided with an operating side and a pushing and withstanding end, the horizontal protuberance butt of said pushing and withstanding end and locating rod; By driving this operating side this pushing and withstanding end is rotated, make this locating rod this axial channel of upwards withdrawing.

8. the step set of wheels that helps according to claim 7 turns to detent mechanism; It is characterized in that; Said pushing and withstanding end is provided with one and pushes away top arc groove; Be provided with a maintenance edge in a side that pushes away top arc groove, when this locating rod stretches out this axial channel downwards and when snapping in this locating slot, this horizontal protuberance system keeps edge butt with this; When this locating rod broke away from this locating slot, this horizontal protuberance can keep the edge to slide into this from this pushing away top arc groove, and should laterally be pushed this maintenance groove by horizontal protuberance.

9. the step set of wheels that helps according to claim 8 turns to detent mechanism, it is characterized in that wherein this pushes away top arc groove and laterally should push this maintenance groove by horizontal protuberance, and this locating rod can't be stretched by the downward bullet of the elastic force of this elastic parts.

10. the step set of wheels that helps according to claim 8 turns to detent mechanism, it is characterized in that, wherein this operating parts is rotatable and make this push away top arc groove this horizontal protuberance that slips away, and stretches and snap in this locating slot by the downward bullet of the elastic force of this elastic parts.