WO2023066172A1

WO2023066172A1 - Stretching rod and support

Info

Publication number: WO2023066172A1
Application number: PCT/CN2022/125564
Authority: WO
Inventors: 夏美华
Original assignee: 深圳欧森隆科创有限公司
Priority date: 2021-10-22
Filing date: 2022-10-17
Publication date: 2023-04-27
Also published as: CN216519038U9; CN216519038U

Abstract

Provided are a stretching rod and a support. The stretching rod comprises a first pull rod (10), a second pull rod (20) and an extrusion assembly (30), wherein the first pull rod (10) has a stretching end and an insertion end which are opposite to one another, and an insertion end of the second pull rod (20) is movably inserted into the first pull rod (10); and the extrusion assembly (30) is mounted at the insertion end of the second pull rod (20) and abutted against the inner wall of the first pull rod (10), so as to provide a uniform extrusion friction force provided from the insertion end of the second pull rod (20) to the inner wall of the first pull rod (10). The present invention improves the structure of a stretching rod, the supporting stability of the stretching rod is improved, and the service life of the stretching rod is prolonged.

Description

Stretch rods and brackets

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202122560720.1 and the title of the invention "Stretch Rod and Bracket" submitted to the China Patent Office on October 22, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of tension rods, in particular to a tension rod and a bracket.

Background technique

In some scenes of life, there is a need to flexibly change the length and height of the product, so various brackets with stretch rods have emerged as the times require. At present, there are many types of stretch rods in the market with poor stability, unable to carry objects stably, and it is difficult to meet the needs of some special scenarios.

Contents of the invention

The main purpose of the present application is to provide a stretch rod and a bracket, aiming at improving the stability of the stretch rod.

In order to achieve the above object, the application proposes a stretch rod, which includes:

first pull rod;

a second pull rod having opposite stretching ends and insertion ends, the insertion end of the second pull rod is movably inserted into the first pull rod; and

an extrusion assembly installed on the insertion end of the second tension rod and abutting against the inner wall of the first tension rod, so as to provide uniform extrusion from the insertion end of the second tension rod to the inner wall of the first tension rod pressure friction.

Optionally, installation holes are opened on both sides of the insertion end of the second pull rod, and the extrusion assembly includes:

The first friction seat is provided with a first connecting arm;

The second friction seat is provided with a second connecting arm corresponding to the position of the first connecting arm, the second friction seat and the first friction seat are enclosed to form a sleeve, and the sleeve is sleeved on the first The insertion ends of the two tie rods are located between the first tie rod and the second tie rod; wherein, the first connecting arm and the second connecting arm are respectively inserted into the mounting holes and abut against each other to form extrusion column; and

The elastic member is sheathed on the extruding column.

Optionally, the elastic member is a spring or a plastic elastic body.

Optionally, two mounting holes are respectively provided on both sides of the insertion end of the second pull rod, and the number of the first connecting arm and the second connecting arm are both two, so as to form two sets of the Each extrusion column is provided with the elastic member.

Optionally, the first connecting arm and the second connecting arm are fastened and fixed by screws; or the first connecting arm and the second connecting arm are fixed by riveting; or the first connecting arm and the second connecting arm are fixed by riveting. The second connecting arm is fixed by clamping; or the first connecting arm and the second connecting arm are fixed by riveting and hot-melt connection.

Optionally, the pressing assembly further includes a friction plate, and the friction plate is arranged between the sleeve and the first pull rod.

Optionally, the number of the friction plates is two, and the two friction plates are attached to the first friction seat and the second friction seat respectively; or one of the friction plates is connected to the first friction seat. The friction seat is integrally formed, and the other friction sheet is integrally formed with the second friction seat.

Optionally, the friction plate is made of metal or plastic.

Optionally, a rod sleeve is provided at an end of the first pull rod close to the second pull rod, so as to restrict the second pull rod from detaching from the first pull rod.

In order to achieve the above object, the present application also proposes a bracket, the bracket includes the stretch rod as described above, and the stretch rod includes:

first pull rod;

In the technical solution of the present application, the stretch rod includes a first pull rod, a second pull rod and an extrusion assembly, the first pull rod has opposite stretch ends and insertion ends, and the insertion end of the second pull rod is movably inserted into the first pull rod. The pull rod; the extrusion assembly is installed on the insertion end of the second pull rod and abuts against the inner wall of the first pull rod, so as to provide uniform extrusion friction from the outer peripheral wall of the insertion end of the second pull rod to the inner peripheral wall of the first pull rod. Wherein, the extruding assembly is arranged between the first tie rod and the second tie rod, and provides a uniform extrusion force to the first tie rod, so that the friction force between the first tie rod and the second tie rod can be evenly dispersed, thereby improving the tensile strength. The stability of the rod and prolong the service life.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative effort.

Fig. 1 is the structural representation of an embodiment of the stretch rod of the present application;

Fig. 2 is the front view of an embodiment of the stretch rod of the present application;

Fig. 3 is a partial cross-sectional view of an embodiment of the stretch rod of the present application;

Fig. 4 is a partial cross-sectional view of another embodiment of the stretch rod of the present application.

Explanation of reference numbers:

10. First pull rod; 20. Second pull rod; 30. Extrusion assembly; 31. First friction seat; 32. Second friction seat; 33. Elastic member; 311. First connecting arm; 321. Second connecting arm ; 34, friction plate; 11, rod cover.

The realization, functional features and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present application, the directional indications are only used to explain the position in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be interpreted as indications or hints Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, if the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes in which both A and B are satisfied . In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

The present application proposes a stretch rod, which is suitable for brackets and the like, but is not limited here.

1 to 3, in an embodiment of the present application, the stretch rod includes a first pull rod 10, a second pull rod 20 and an extrusion assembly 30, the first pull rod 10 has opposite stretch ends and insertion ends, the second pull rod The insertion end of the two pull rods 20 is movably inserted into the first pull rod 10; The outer peripheral wall provides uniform squeezing friction to the inner peripheral wall of the first tie rod 10 .

In this embodiment, both the first pull rod 10 and the second pull rod 20 can be arranged in the shape of a hollow long cylinder, and their materials can be plastic or metal, etc., which are not limited here. The diameter of the second tie rod 20 may be slightly smaller than the diameter of the first tie rod 10 .

The extruding assembly 30 can be a sleeve and an elastic member, and can also be an elastic end plug or an end cap, etc., and can also be other materials with a certain degree of elasticity and can be provided from the outer peripheral wall of the second pull rod 20 to the inner peripheral wall of the first pull rod 10 . Parts with uniform extrusion force are not limited here.

In the technical solution of the present application, the stretch rod includes a first pull rod 10, a second pull rod 20 and an extrusion assembly 30, the first pull rod 10 has opposite stretch ends and insertion ends, and the insertion end of the second pull rod 20 is movable Inserted in the first pull rod 10; the extrusion assembly 30 is installed on the insertion end of the second pull rod 20 and abuts against the inner wall of the first pull rod 10, so as to be used to move from the outer peripheral wall of the insertion end of the second pull rod 20 to the first pull rod 10 The inner peripheral wall provides uniform extrusion friction. Wherein, the extrusion assembly 30 is arranged between the first pull rod 10 and the second pull rod 20, and provides uniform extrusion force to the first pull rod 10, so that the friction force between the first pull rod 10 and the second pull rod 20 can be evenly distributed , thereby improving the stability of the stretch rod and prolonging the service life.

Please refer to FIG. 3 , in one embodiment, mounting holes are provided on both sides of the insertion end of the second pull rod 20 , and the extruding assembly 30 includes a first friction seat 31 , a second friction seat 32 and an elastic member 33 , the first friction seat 32 The seat 31 is provided with a first connecting arm 311; the position of the second friction seat 32 corresponding to the first connecting arm 311 is provided with a second connecting arm 321, and the second friction seat 32 and the first friction seat 31 are enclosed to form a sleeve, and the sleeve Sleeved on the insertion end of the second tie rod 20 and located between the first tie rod 10 and the second tie rod 20; wherein, the first connecting arm 311 and the second connecting arm 321 are respectively inserted into the mounting holes and abut against each other to form a extrusion column ; The elastic member 33 is sleeved on the extrusion column.

During the expansion and contraction process of the stretch rod, the elastic member 33 can provide a frontal stable and uniform extrusion force to the inner peripheral wall of the first pull rod 10 through the first friction seat 31 and the second friction seat 32 respectively, which can greatly provide stretching. Rod stability, and prolong service life.

In this embodiment, the elastic member 33 can be a spring or a plastic elastic body with a certain degree of elasticity. Both the first friction seat 31 and the second friction seat 32 can be arranged in a semicircular tubular shape, and the two can be combined to form a sleeve.

In order to facilitate installation and fixation, the stability of the first friction seat 31 and the second friction seat 32 is improved, and the friction force between the first pull rod 10 and the second pull rod 20 is evenly distributed to further improve the stability of the stretch rod. In one embodiment, referring to FIG. 3, two mounting holes can be respectively provided on both sides of the insertion end of the second pull rod 20, and the number of the first connecting arm 311 and the second connecting arm 321 are both two to form There are two sets of extruding columns, each of which is provided with an elastic member 33 .

Wherein, the first connecting arm 311 and the second connecting arm 321 can be fastened and fixed by screws. Certainly, in some other embodiments, the first connecting arm 311 and the second connecting arm 321 may also be fixed by means of riveting, clamping, bonding or hot-melt connection, which is not limited here.

Please refer to FIG. 4 , in an embodiment, the extruding assembly 30 may further include a friction plate 34 disposed between the sleeve and the first pull rod 10 . In this way, the first friction seat 31 and the second friction seat 32 can be protected to avoid wear and tear after long-term use and affect the overall stability of the stretch rod, and further improve the service life of the stretch rod.

In this embodiment, the friction plate 34 can be a separate component, and the number of the friction plate 34 can be two, and the two friction plates 34 are attached to the first friction seat 31 and the second friction seat 32 respectively; of course, in some other In an embodiment, one friction plate 34 can be integrally formed with the first friction seat 31 , and the other friction plate 34 can be integrally formed with the second friction seat 32 , which is not specifically limited here.

The material of the friction plate 34 can be metal or plastic with wear resistance, and is not limited here.

Please refer to FIG. 4 , in an embodiment, a rod sleeve 11 may be provided at an end of the first tie rod 10 close to the second tie rod 20 to restrict the second tie rod 20 from detaching from the first tie rod 10 .

In this embodiment, the rod cover 11 also has a guiding function to guide the movement of the first pull rod 10, which can prevent the first pull rod 10 from deviating from the movement track and damage the extruding assembly 30 between it and the second pull rod 20, thereby improving the tension of the pull rod 10. The stability of the extension rod is improved, and the service life is further extended.

The application also proposes a bracket, which includes a stretch rod. The specific structure of the stretch rod refers to the above-mentioned embodiments. Since the bracket proposed by the application includes all the solutions of all the embodiments of the above-mentioned stretch rod, it has at least The same technical effects as those of the stretch rod are not described here one by one.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Under the inventive concept of the present application, the equivalent structural transformations made by using the description of the application and the contents of the accompanying drawings, or direct/indirect Applications in other relevant technical fields are included in the patent protection scope of the present application.

Claims

A stretch rod, characterized in that the stretch rod comprises:

first pull rod;

a second pull rod having opposite stretching ends and insertion ends, the insertion end of the second pull rod is movably inserted into the first pull rod; and

an extrusion assembly installed on the insertion end of the second tension rod and abutting against the inner wall of the first tension rod, so as to provide uniform extrusion from the insertion end of the second tension rod to the inner wall of the first tension rod pressure friction.
The stretch rod according to claim 1, wherein installation holes are opened on both sides of the insertion end of the second pull rod, and the extruded assembly comprises:

The first friction seat is provided with a first connecting arm;

The second friction seat is provided with a second connecting arm corresponding to the position of the first connecting arm, the second friction seat and the first friction seat are enclosed to form a sleeve, and the sleeve is sleeved on the first The insertion ends of the two tie rods are located between the first tie rod and the second tie rod; wherein, the first connecting arm and the second connecting arm are respectively inserted into the mounting holes and abut against each other to form extrusion column; and

The elastic member is sheathed on the extruding column.
The stretch rod according to claim 2, wherein the elastic member is a spring or a plastic elastic body.
The stretch rod according to claim 2, wherein two mounting holes are respectively provided on both sides of the insertion end of the second pull rod, and the number of the first connecting arm and the second connecting arm is Both are two to form two groups of extruding columns, and each of the extruding columns is provided with the elastic member.
The stretch rod according to claim 4, wherein the first connecting arm and the second connecting arm are fastened and fixed by screws; or the first connecting arm and the second connecting arm are riveted Pressing and fixing; or the first connecting arm and the second connecting arm are fixed by clamping; or the first connecting arm and the second connecting arm are fixed by riveting and hot melt connection.
The stretch rod according to claim 2, wherein the extruding assembly further comprises a friction plate, and the friction plate is arranged between the sleeve and the first pull rod.
The stretch rod according to claim 6, wherein the number of the friction plates is two, and the two friction plates are attached to the first friction seat and the second friction seat respectively; or One of the friction plates is integrally formed with the first friction seat, and the other friction plate is integrally formed with the second friction seat.
The stretch rod according to claim 6, wherein the material of the friction plate is metal or plastic.
The stretch rod according to any one of claims 1-8, characterized in that a rod sleeve is provided at the end of the first pull rod close to the second pull rod to restrict the movement of the second pull rod from the first pull rod. Comes out of the lever.
A stent, characterized in that the stent comprises the stretch rod according to any one of claims 1-8.