CN214837621U

CN214837621U - Telescopic rod

Info

Publication number: CN214837621U
Application number: CN202120995289.0U
Authority: CN
Inventors: 王卫强
Original assignee: Dongguan Tianyu Luggage Accessories Co ltd
Current assignee: Dongguan Tianyu Luggage Accessories Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-23
Anticipated expiration: 2031-05-11

Abstract

The application belongs to the technical field of folding fan supporting rods and relates to a telescopic rod which comprises a plurality of rod bodies which are sleeved and embedded for stretching, wherein the sleeved and embedded positions of the adjacent rod bodies are provided with through holes in a penetrating way on the outer layer rod body, and an anti-retraction assembly is arranged on the inner layer rod body; the retraction prevention assembly comprises a bead body, a spring and an end sleeve body sleeved on the outer wall of the end part of the inner layer rod body; the bead body is arranged on one side of the end sleeve body close to the outer layer rod body and is positioned at the through hole, the outer diameter of the bead body is larger than the inner diameter of the through hole, and the outer part of the bead body protrudes out of the outer layer rod body and is positioned outside the outer layer rod body; the spring is positioned between the end sleeve body and the bead body and provides acting force for the bead body to protrude outwards from the through hole. This application is injectd the relative position of the inlayer body of rod and the outer body of rod through the pearl body to effectively help prevents that the telescopic link from appearing the phenomenon of returning back in the course of the work.

Description

Telescopic rod

Technical Field

The application relates to the field of folding fan bracing piece, especially relate to a telescopic link.

Background

The telescopic rod is a daily tool which is commonly used, and can be used on more structures or devices. The telescopic folding fan emerging at present adopts a telescopic rod. Generally speaking, this kind of flexible folding fan includes base, telescopic link and fan head. The base is box-like, and the bottom of telescopic link is installed in the base, and the fan head is installed on the top of telescopic link. The height of the fan head is adjusted and stored through the telescopic rod.

However, there is the consumer feedback, when using above-mentioned flexible folding fan, the telescopic link is contract easily, leads to the fan head gliding from this, needs the consumer to stretch the telescopic link again repeatedly in order to adjust the height of fan head, experiences poorly.

SUMMERY OF THE UTILITY MODEL

In order to alleviate the telescopic folding phenomenon that the telescopic link retracted in the fan, this application provides a telescopic link.

The application provides a telescopic link adopts following technical scheme:

a telescopic rod comprises a plurality of rod bodies which are sleeved and embedded for stretching,

at the sleeving and embedding position of the adjacent rod bodies, a through hole is formed in the outer layer rod body in a penetrating mode, and an anti-retraction assembly is arranged on the inner layer rod body;

the retraction prevention assembly comprises a bead body, a spring and an end sleeve body sleeved on the outer wall of the end part of the inner layer rod body;

the bead body is arranged on one side of the end sleeve body close to the outer layer rod body and is positioned at the through hole, the outer diameter of the bead body is larger than the inner diameter of the through hole, and the outer part of the bead body protrudes out of the outer layer rod body and is positioned outside the outer layer rod body;

the spring is positioned between the end sleeve body and the bead body and provides acting force for the bead body to protrude outwards from the through hole.

Through adopting above-mentioned technical scheme, when the telescopic link body was in the state of lengthening, the pearl body inlayed in the through-hole under the effect of spring, and the outer wall of the outer layer body of rod of the outside salient of the pearl body, can block the relative displacement between the inlayer body of rod and the outer layer body of rod from this to alleviate the phenomenon of contracting that the telescopic link normally produced during operation. When the telescopic link is accomodate in needs withdrawal, press the pearl body inwards for the pearl body breaks away from corresponding perforating hole, then, with the inlayer body of rod retract to the outer layer body of rod that corresponds in can. Moreover, the elasticity of spring is good, easily installation, long-lived, can effectively promote the pressing of the pearl body and use experience.

Optionally, the end sleeve body is provided with a limiting groove with an opening, the opening of the limiting groove faces the bead body, the spring is located in the limiting groove, and two ends of the spring in the telescopic direction are respectively connected with the inner wall of the limiting groove and the bead body.

By adopting the technical scheme, the limiting groove can limit the expansion of the spring to a certain extent, so that the stability of the expansion action of the spring is improved, and the stability of the elastic expansion of the bead body is improved.

Optionally, the end sleeve body and the inner layer rod body are clamped.

Through adopting above-mentioned technical scheme, the connected mode of joint is simple, easy equipment.

Optionally, the end sleeve body comprises a first sleeve body and a second sleeve body which are independent, and the first sleeve body and the second sleeve body are connected with the inner layer rod body in a clamped mode.

By adopting the technical scheme, the end sleeve body is divided, and the convenience in manufacturing and assembling the end sleeve body can be further improved.

Optionally, the end sleeve body is arranged at the end part of the inner layer rod body, the inner wall of the end part of the outer layer rod body is provided with an anti-falling ring, and the anti-falling ring is abutted to the outer wall of the inner layer rod body.

Through adopting above-mentioned technical scheme, including the end cover body including the subassembly that contracts of preventing not only can effectively prevent that the telescopic link from returning the slip backward and contract, can also play the function that the inlayer body of rod and the outer body of rod break away from when preventing that the telescopic link from pulling open.

Optionally, the end of the telescopic rod body is provided with an end connector, and the end connector is provided with a terminal.

The telescopic link of this application can be arranged in flexible folding fan. This application sets up the terminal at the tip of telescopic link body through adopting above-mentioned technical scheme, and the external circuit of being convenient for improves the practicality and the use convenience of the telescopic link of this application.

Optionally, the end connector is provided with a mounting buckle.

Through adopting above-mentioned technical scheme, the installation buckle of telescopic link body bottom is convenient for install the telescopic link body on the base of flexible folding fan, and the installation buckle of telescopic link body bottom is convenient for install fan head, further promotes the practicality and the use convenience of the telescopic link of this application from this.

Optionally, the end joint is provided with a positioning column for positioning the telescopic rod when the telescopic rod is installed.

By adopting the technical scheme, when the telescopic rod is installed and used, the telescopic rod can be conveniently aligned and positioned.

To sum up, the application comprises the following beneficial technical effects:

1. the relative positions of the inner layer rod body and the outer layer rod body are limited through the beads, so that the telescopic rod is effectively prevented from retracting in the working process;

2. the retraction prevention assembly can effectively prevent the telescopic rod from backward sliding and retracting and also has the function of preventing the inner-layer rod body from being separated from the outer-layer rod body when the telescopic rod is pulled open;

3. the utility model provides a practicality and the use convenience of the telescopic link of this application have further been promoted to the tip of telescopic link still be provided with the terminal that is used for the wiring and the installation buckle of being convenient for the installation.

Drawings

FIG. 1 is a schematic view of a telescoping pole of the present application in an extended position;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a cross-sectional view of an end cap embodying the internal structure of the stop groove;

FIG. 5 is a schematic diagram of the structure at B in FIG. 2;

fig. 6 is a schematic diagram of the structure at C in fig. 2.

Description of reference numerals: 1. an inner layer rod body; 11. inner layer mounting holes; 2. an outer layer rod body; 21. a through hole; 22. an outer layer mounting hole; 3. an end cap body; 31. a limiting groove; 32. an inner layer clamping column; 33. the positioning rod is extended; 4. a spring; 5. a bead body; 6. the anti-drop ring; 61. an outer layer fixture block; 7. an end fitting; 71. a positioning column; 72. a terminal; 73. mounting a buckle; 74. and (4) a yielding hole.

Detailed Description

The present application is described in further detail below.

The embodiment of the application discloses telescopic link, refer to fig. 1 and 2, including the telescopic link body, the telescopic link body includes the body of rod that a plurality of telescopic cover inlayed. Referring to fig. 3, a through hole 21 is formed in the outer layer rod body 2 at the nesting position of the adjacent rod bodies, and an anti-retraction assembly is arranged on the inner layer rod body 1 corresponding to the through hole 21 and comprises an end sleeve body 3, a spring 4 and a bead body 5. Both ends of the telescopic rod body are provided with end connectors 7.

Referring to fig. 1 and 2, in the embodiment, the rod body is provided with three sections, the cross section is waist-shaped, and the shape of the rod body is round and smooth, and the nested rod bodies are not easy to rotate and displace. Referring to fig. 3, in the present embodiment, two through holes 21 are formed at the embedding position of the adjacent rod bodies, the two through holes 21 are respectively located at the two arc surfaces corresponding to the outer layer rod body 2, and the two through holes 21 are oppositely disposed.

The end sleeve body 3 is matched with the corresponding inner layer rod body 1 and is integrally sleeved on the outer wall of the end part of the inner layer rod body 1. The part of the end part sleeve body 3 extending out of the end part of the inner layer rod body 1 extends inwards to form a butt joint table, and the inner surface of the butt joint table is used for butt joint with the end part of the corresponding inner layer rod body 1.

In order to facilitate processing and installation, the end sleeve body 3 is divided into two parts along the length direction of the horizontal section of the end sleeve body 3, namely a first sleeve body and a second sleeve body. The inner walls of the first sleeve body and the second sleeve body are fixedly provided with inner layer clamping columns 32, the corresponding positions of the inner layer rod body 1 are provided with penetrating inner layer mounting holes 11, and the inner layer clamping columns penetrate through and are clamped into the inner layer mounting holes 11, so that the end part sleeve body 3 and the inner layer rod body 1 are conveniently fixed.

The inside wall of the end sleeve body 3 is provided with two limiting grooves 31, and the two limiting grooves 31 are respectively positioned on the first sleeve body and the second sleeve body. Referring to fig. 4, the limiting groove 31 may be formed by inward depression of the side wall of the end cap 3, and the opening is outward and located at the corresponding through hole 21. The spherical ball 5 is disposed at the opening of the limiting groove 31, and the outer diameter is smaller than the inner diameter of the limiting groove 31 and larger than the inner diameter of the corresponding through hole 21. A spring 4 is provided in the stopper groove 31. One end of the spring 4 in the expansion direction abuts against the inner bottom wall of the limiting groove 31, and the other end abuts against the bead 5. The spring 4 gives the bead 5 a force to protrude from the through hole 21 to the outside of the outer rod body 2.

Referring back to fig. 3, the inner wall of the end of the outer layer rod body 2 is provided with a slip-off preventing ring 6. Referring to fig. 5, the outer wall of the anti-drop ring 6 is provided with an outer fixture block 61, and a corresponding position of the outer rod body 2 is provided with a penetrating outer mounting hole 22. The outer layer fixture block 61 is embedded in the outer layer mounting hole 22, so that the anti-drop ring 6 and the outer layer rod body 2 are fixed. Referring back to fig. 3, in the practical use process of the telescopic rod, the end sleeve 3 is inserted into the outer layer rod 2 and the anti-drop ring 6 along with the inner layer rod 1, the end sleeve 3 is located on the inner side of the anti-drop ring 6 in the axial direction, and the inner wall of the anti-drop ring 6 is abutted to the outer wall of the inner layer rod 1.

Referring back to fig. 2, the two ends of the telescopic rod body are both provided with end connectors 7, and the end connectors 7 are embedded in the inner wall of the corresponding rod body in a clamping manner. Referring to fig. 6, the end fitting 7 is provided with a terminal 72 for external wiring. A positioning column 71 for aligning and clamping with the base is also arranged in the end connector 7. The outside portion of end joint 7 is provided with installation buckle 73, is convenient for with other part joint such as base, fan head, set up the hole of stepping down 74 that cooperation installation buckle 73 wore out the body of rod on the body of rod that corresponds.

In this embodiment, as shown in fig. 5, at the insertion position of the middle rod body and the lower rod body, two extension positioning rods 33 are further disposed at the bottom end of the lantern ring 3, and the two extension positioning rods 33 are respectively and fixedly located at two opposite sides of the bottom surface of the lantern ring 3. The extension positioning rod 33 is vertically arranged in a long rod shape, and the top end of the extension positioning rod is fixedly connected to the bottom surface of the lantern ring 3. When the telescopic rod body is retracted, the top end of the extension positioning rod 33 is abutted against the top surface of the end joint 7, so that the middle rod body cannot be excessively retracted into the lower rod body, and a certain positioning effect is exerted on the middle rod body.

The implementation principle of a telescopic link of this application embodiment does: after the telescopic link body elongates, the pearl body 5 inlays in the perforating hole 21 under the effect of spring 4, and the outer wall of the outer layer body of rod 2 of the outside salient of pearl body 5 from this can block the relative displacement between the inner layer body of rod 1 and the outer layer body of rod 2 to alleviate the phenomenon of contracting that the telescopic link normally produced during operation. When the telescopic link is accomodate in the needs withdrawal, press the pearl body inwards for the pearl body breaks away from corresponding perforating hole 21, then, with the inlayer body of rod 1 retract to the outer body of rod 2 that corresponds in can.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a telescopic rod, includes that a plurality of cover inlay so that be used for the flexible body of rod, its characterized in that:

at the sleeving and embedding position of the adjacent rod bodies, a through hole (21) is formed in the outer layer rod body (2) in a penetrating mode, and an anti-retraction assembly is arranged on the inner layer rod body (1);

the retraction prevention assembly comprises a bead body (5), a spring (4) and an end sleeve body (3) sleeved on the outer wall of the end part of the inner layer rod body (1);

the bead body (5) is arranged on one side, close to the outer layer rod body (2), of the end portion sleeve body (3) and located at the through hole (21), the outer diameter of the bead body (5) is larger than the inner diameter of the through hole (21), and the outer portion of the bead body (5) protrudes out of the outer layer rod body (2) and is located outside the outer layer rod body (2);

the spring (4) is positioned between the end sleeve body (3) and the bead body (5) and provides the bead body (5) with an acting force which protrudes outwards from the through hole (21).

2. A telescopic rod according to claim 1, characterized in that: the end sleeve body (3) is provided with a limiting groove (31) with an opening, the opening of the limiting groove (31) faces the bead body (5), the spring (4) is located in the limiting groove (31), and two ends of the spring (4) in the stretching direction are connected with the inner wall of the limiting groove (31) and the bead body (5) respectively.

3. A telescopic rod according to claim 1, characterized in that: the end part sleeve body (3) is clamped with the inner layer rod body (1).

4. A telescopic rod according to claim 1, characterized in that: the end sleeve body (3) comprises a first sleeve body and a second sleeve body which are independent, and the first sleeve body and the second sleeve body are connected with the inner layer rod body (1) in a clamped mode.

5. A telescopic rod according to claim 1, characterized in that: the end part sleeve body (3) is arranged at the end part of the inner layer rod body (1), the inner wall of the end part of the outer layer rod body (2) is provided with an anti-drop ring (6), and the anti-drop ring (6) is abutted to the outer wall of the inner layer rod body (1).

6. A telescopic rod according to claim 1, characterized in that: the end part of the telescopic rod body is provided with an end part joint (7), and the end part joint (7) is provided with a terminal (72).

7. A telescopic rod according to claim 6, characterized in that: and the end joint (7) is provided with an installation buckle (73).

8. A telescopic rod according to claim 6, characterized in that: and a positioning column (71) for positioning the telescopic rod when the telescopic rod is installed is arranged on the end part joint (7).