CN212631086U

CN212631086U - Stepless regulator

Info

Publication number: CN212631086U
Application number: CN202020312357.4U
Authority: CN
Inventors: 周泽奇
Original assignee: Foshan Zhongxin Aolian Precision Technology Co ltd
Current assignee: Foshan Zhongxin Aolian Precision Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-03-02
Anticipated expiration: 2030-03-13

Abstract

A stepless regulator comprises a steel pipe, wherein the steel pipe is of a hollow structure, a forward sleeve is fixed at the front end position inside the steel pipe, and a backward sleeve is fixed at the rear end position inside the steel pipe; the steel pipe sleeve is characterized by also comprising a solid rod, wherein the solid rod is sleeved inside the steel pipe, and the side wall of the solid rod is in sliding fit with the inner side walls of the forward sleeve and the backward sleeve; still include spring adjustment mechanism, spring adjustment mechanism including left spring, right spring, the support of acting as go-between and the line of acting as go-between colludes, the line of acting as go-between colludes and installs in the steel pipe to with the inside wall sliding fit of steel pipe, the support of acting as go-between is located the steel pipe outside, and the support of acting as go-between colludes the linkage cooperation with the line of acting as go-between, left side spring and right spring cup joint respectively on solid core rod, and left side spring and right spring still closely laminate with the lateral wall of solid core rod to left side spring and right spring have the trend of inside crimple, the one end of left side spring is fixed and is sheathe in to the back, and the left end that.

Description

Stepless regulator

Technical Field

The utility model belongs to the technical field of elevating system and specifically relates to a stepless regulator is applied to the lift adjustment of wheelchair back.

Background

The wheelchair has the advantages that as the living standard of people is gradually improved, the perfect requirement of people on materials is higher and higher, for disabled people or patients who cannot walk, people can move from the former walking stick to the current wheelchair more conveniently through the wheelchair, and at present, in order to enable the wheelchair to bring better comfort to users in use, the regulator is additionally arranged on the backrest of the wheelchair, the angle of the backrest of the wheelchair can be regulated through the regulator, and sitting postures at different angles can be brought to the users; at present, the wheelchair back made by the traditional process basically adopts a clamping and gear shifting mode to adjust the lifting height, when the wheelchair back is adjusted, the gear shifting can generate noise, and the adjusted angle has limitation and cannot adapt to the adjustment of low angle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A stepless regulator comprises a steel pipe, wherein the steel pipe is of a hollow structure, a forward sleeve is fixed at the front end position inside the steel pipe, and a backward sleeve is fixed at the rear end position inside the steel pipe; the steel pipe sleeve is characterized by also comprising a solid rod, wherein the solid rod is sleeved inside the steel pipe, and the side wall of the solid rod is in sliding fit with the inner side walls of the forward sleeve and the backward sleeve; the steel pipe drawing device is characterized by further comprising a spring adjusting mechanism, wherein the spring adjusting mechanism comprises a left spring, a right spring, a drawing wire support and a drawing wire hook, the drawing wire hook is installed in the steel pipe and is in sliding fit with the inner side wall of the steel pipe, the drawing wire support is located outside the steel pipe and is in linkage fit with the drawing wire hook, the left spring and the right spring are respectively sleeved on the solid rod, the left spring and the right spring are tightly attached to the side wall of the solid rod, the left spring and the right spring have the inward contraction tendency, one end of the left spring is fixed on the backward sleeve, and the other end of the left spring is fixed at the left end of the drawing wire hook; one end of the right spring is fixed on the forward sleeve, and the other end of the right spring is fixed at the right end of the pull wire hook; the pull wire hook is in linkage fit through the pull wire support, so that the left spring and the right spring fixed on the pull wire hook are driven to expand.

Preferably, slots are respectively formed in the outer walls of the front sleeve and the rear sleeve, the inner wall of the steel pipe is located between the front sleeve and the rear sleeve, insertion blocks are further formed inwards at the positions of the slots, and the slots and the insertion blocks are riveted with each other.

Preferably, the opposite surfaces of the forward sleeve and the backward sleeve are respectively provided with a first plug hole, one end of the left spring is plugged in the first plug hole of the backward sleeve, and one end of the right spring is plugged in the first plug hole of the forward sleeve.

Preferably, the pull wire hook comprises a fixed end and a movable end, and the pull wire bracket comprises two bracket plates; the fixed end of the pull wire hook is fixed on the side wall of the steel pipe and is positioned between the left spring and the right spring, the movable end of the pull wire hook is in running fit with the inner wall of the steel pipe, the movable end of the pull wire hook is limited by the fixed end, and one end of the left spring and one end of the right spring are respectively fixed on the movable end of the pull wire hook; two support plates of the stay wire support are mutually hinged and matched, one support plate is fixed at the fixed end of the stay wire hook, and the other support plate is fixed at the movable end of the stay wire hook.

Preferably, the two sides of the movable end of the pull wire hook are respectively provided with a second inserting hole, and the other ends of the left spring and the right spring are respectively inserted into the second inserting holes.

Preferably, the movable sleeve is sleeved on the inner wall of the steel pipe and located between the forward sleeve and the backward sleeve, and the left spring and the right spring are located in the movable sleeve.

Preferably, a thread is further formed on the side wall of the front end of the solid rod, and a locknut is connected to the thread in a threaded manner.

Preferably, the U-shaped code is fixedly sleeved on the side wall of the front end of the steel pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

two cradling pieces of acting as go-between support are pressed respectively through two fingers, and the expansion end that the drive acting as go-between was colluded rotates to open and tend to contract left spring and right spring under the state, make the solid pole not receive the tensile force of left spring and right spring, realize the structure that the high free adjustment of stroke was locked, solve prior art and adjust the noise that sends through the screens, and can carry out arbitrary altitude mixture control in order to realize the regulation of the arbitrary angle of wheelchair back.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of the present invention at a in fig. 1.

Fig. 3 is an enlarged schematic view of the present invention at B in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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 to 3, in an embodiment of the present invention, a stepless regulator includes a steel pipe 10, where the steel pipe 10 is a hollow structure, a front sleeve 11 is fixed at a front end position inside the steel pipe 10, and a rear sleeve 12 is fixed at a rear end position inside the steel pipe 10; the steel pipe structure further comprises a solid rod 20, wherein the solid rod 20 is sleeved inside the steel pipe 10, and the side wall of the solid rod 20 is in sliding fit with the inner side walls of the forward sleeve 11 and the backward sleeve 12; the steel pipe drawing device is characterized by further comprising a spring adjusting mechanism, wherein the spring adjusting mechanism comprises a left spring 31, a right spring 32, a drawing wire support 34 and a drawing wire hook 33, the drawing wire hook 33 is installed in the steel pipe 10 and is in sliding fit with the inner side wall of the steel pipe 10, the drawing wire support 34 is located outside the steel pipe 10, the drawing wire support 34 is in linkage fit with the drawing wire hook 33, the left spring 31 and the right spring 32 are respectively sleeved on the solid rod 20, the left spring 31 and the right spring 32 are tightly attached to the side wall of the solid rod 20, the left spring 31 and the right spring 32 tend to contract inwards, one end of the left spring 31 is fixed on the rear sleeve 12, and the other end of the left spring 31 is fixed at the left end of the drawing wire hook 33; one end of the right spring 32 is fixed on the forward sleeve 11, and the other end of the right spring 32 is fixed at the right end of the pull wire hook 33; the pull wire hook 33 is in linkage fit through the pull wire bracket 34, so that the left spring 31 and the right spring 32 fixed on the pull wire hook 33 are driven to expand.

In the embodiment, the steel pipe 10 is fixed behind the backrest of the wheelchair, the rear end of the solid rod 20 is fixed at the lower end of the cushion of the wheelchair, and the angle adjustment for the wheelchair for examination can be realized by adjusting the position between the steel pipe 10 and the solid rod 20; wherein the stay wire hook 33 is rotated through the stay wire support 34, the stay wire hook 33 is linked to rotate along the inner side wall of the steel pipe 10, the positions of the left spring 31 and the right spring 32 which are fixed on the stay wire hook 33 are driven, so that the outward expansion of the left spring 31 and the right spring 32 is realized, the tension force between the left spring 31 and the solid rod 20 is further removed, the solid rod 20 is separated from the tension force and then is only in sliding fit with the front sleeve 11 and the rear sleeve 12, and the position can be adjusted.

As further shown in fig. 3, the outer walls of the forward sleeve 11 and the backward sleeve 12 are respectively provided with a slot 111, and the inner wall of the steel pipe 10 is further formed with an insert block 14 at the position of the slot 111 of the forward sleeve 11 and the backward sleeve 12, and the slot 111 and the insert block 14 are riveted with each other.

As further shown in fig. 3, the opposite surfaces of the forward sleeve 11 and the backward sleeve 12 are respectively provided with a first insertion hole 112, one end of the left spring 31 is inserted into the first insertion hole 112 of the backward sleeve 12, and one end of the right spring 32 is inserted into the first insertion hole 112 of the forward sleeve 11.

As further shown in fig. 2, the pull wire hook 33 includes a fixed end 331 and a movable end 332, and the pull wire bracket 34 includes two bracket plates 341; the fixed end 331 of the pull wire hook 33 is fixed on the side wall of the steel pipe 10 and is located between the left spring 31 and the right spring 32, the movable end 332 of the pull wire hook 33 is in running fit with the inner wall of the steel pipe 10, the movable end 332 of the pull wire hook 33 is limited by the fixed end 331, and one end of the left spring 31 and one end of the right spring 32 are respectively fixed on the movable end 332 of the pull wire hook 33; the two supporting plates 341 of the stay wire bracket 34 are hinged and matched with each other, wherein one supporting plate 341 is fixed on the fixed end 331 of the stay wire hook 33, and the other supporting plate is fixed on the movable end 332 of the stay wire hook 33.

In this embodiment, two support plates 341 of the wire support 34 are pressed by two fingers respectively, the movable end 332 of the wire hook 33 is driven to rotate, so as to expand the left spring 31 and the right spring 32 which tend to be in a contracted state, the solid rod 20 is not subjected to the tension of the left spring 31 and the right spring 32, the stroke height can be freely adjusted, after the fingers are released, the left spring 31 and the right spring 32 contract and are tightly attached to the solid rod 20 to generate tension, wherein the tension between the solid rod 20 and the left spring 31 and the right spring 32 is controlled to be more than 3000N, the solid rod 20 and the steel tube 10 are fixed with each other, and the backrest position of the wheelchair is locked and adjusted.

As further shown in fig. 2, second inserting holes 333 are further formed in two side positions of the movable end 332 of the wire hook 33, and the other ends of the left spring 31 and the right spring 32 are respectively inserted into the second inserting holes 333.

As further shown in fig. 2, the adjusting device further comprises a movable sleeve 13, wherein the movable sleeve 13 is sleeved on the inner wall of the steel pipe 10, the movable sleeve 13 is located between the forward sleeve 11 and the backward sleeve 12, and the left spring 31 and the right spring 32 are located in the movable sleeve 13, so that stability in the adjusting process is enhanced.

As further shown in fig. 1, a screw thread is formed on the front end side wall of the solid rod 20, and a locknut 21 is screwed on the screw thread to prevent the solid rod 20 from being drawn out.

Further, as shown in fig. 1, a U-shaped bracket 15 is fixedly sleeved on the side wall of the front end of the steel tube 10 and is used for being fixed on the backrest of the wheelchair.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A stepless regulator comprises a steel pipe and is characterized in that the steel pipe is of a hollow structure, a forward sleeve is fixed at the front end position inside the steel pipe, and a backward sleeve is fixed at the rear end position inside the steel pipe; the steel pipe sleeve is characterized by also comprising a solid rod, wherein the solid rod is sleeved inside the steel pipe, and the side wall of the solid rod is in sliding fit with the inner side walls of the forward sleeve and the backward sleeve; the steel pipe drawing device is characterized by further comprising a spring adjusting mechanism, wherein the spring adjusting mechanism comprises a left spring, a right spring, a drawing wire support and a drawing wire hook, the drawing wire hook is installed in the steel pipe and is in sliding fit with the inner side wall of the steel pipe, the drawing wire support is located outside the steel pipe and is in linkage fit with the drawing wire hook, the left spring and the right spring are respectively sleeved on the solid rod, the left spring and the right spring are tightly attached to the side wall of the solid rod, the left spring and the right spring have the inward contraction tendency, one end of the left spring is fixed on the backward sleeve, and the other end of the left spring is fixed at the left end of the drawing wire hook; one end of the right spring is fixed on the forward sleeve, and the other end of the right spring is fixed at the right end of the pull wire hook; the pull wire hook is in linkage fit through the pull wire support, so that the left spring and the right spring fixed on the pull wire hook are driven to expand.

2. The stepless regulator of claim 1, wherein the outer walls of the forward sleeve and the backward sleeve are respectively provided with a slot, and the inner wall of the steel pipe is further provided with an insert block inwardly formed at the position of the slot of the forward sleeve and the backward sleeve, and the slot and the insert block are riveted with each other.

3. The stepless regulator of claim 1, wherein the opposite surfaces of the forward sleeve and the backward sleeve are respectively provided with a first inserting hole, one end of the left spring is inserted into the first inserting hole of the backward sleeve, and one end of the right spring is inserted into the first inserting hole of the forward sleeve.

4. The stepless adjuster according to claim 1, wherein the pull wire hook comprises a fixed end and a movable end, and the pull wire bracket comprises two bracket plates; the fixed end of the pull wire hook is fixed on the side wall of the steel pipe and is positioned between the left spring and the right spring, the movable end of the pull wire hook is in running fit with the inner wall of the steel pipe, the movable end of the pull wire hook is limited by the fixed end, and one end of the left spring and one end of the right spring are respectively fixed on the movable end of the pull wire hook; two support plates of the stay wire support are mutually hinged and matched, one support plate is fixed at the fixed end of the stay wire hook, and the other support plate is fixed at the movable end of the stay wire hook.

5. The stepless regulator of claim 4, wherein the two sides of the movable end of the pull wire hook are respectively provided with a second inserting hole, and the other ends of the left spring and the right spring are respectively inserted into the second inserting holes.

6. The stepless regulator of claim 1, further comprising a movable sleeve, wherein the movable sleeve is sleeved on the inner wall of the steel pipe, the movable sleeve is positioned between the forward sleeve and the backward sleeve, and the left spring and the right spring are positioned in the movable sleeve.

7. The stepless regulator of claim 1, wherein the front end side wall of the solid rod is further formed with threads, and the threads are connected with a locknut in a threaded mode.

8. The stepless regulator of claim 1, wherein a U-shaped bracket is fixedly sleeved on the side wall of the front end of the steel tube.