CN219795780U

CN219795780U - Length-adjustable telescopic rod

Info

Publication number: CN219795780U
Application number: CN202321148938.9U
Authority: CN
Inventors: 鲍佳骏; 刘强
Original assignee: Hangzhou Huayiqiang Industrial Co ltd
Current assignee: Hangzhou Huayiqiang Industrial Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-03
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a telescopic rod with adjustable length, and belongs to the field of telescopic rods. An outer tube configured to have a telescoping slot; the inner tube is arranged in the telescopic groove in a telescopic way; the telescopic link of adjustable length still includes: the guide piece is arranged on the inner wall of the telescopic groove so that the inner pipe slides along the axial direction of the outer pipe; the limiting rings are uniformly arranged on the inner wall of the telescopic groove along the axial direction and used for limiting the inner pipe in the axial direction; the support block is arranged on the guide piece in a sliding manner, and the surface of the support block is used for supporting the inner pipe; one end of the inner tube is rotatably arranged on the supporting block and is connected by a torsion spring; the outer wall of the inner tube is provided with a limiting block corresponding to the limiting ring; in the positioning state, the limiting block is embedded between two adjacent limiting rings, so that the inner pipe is limited in the axial direction. The telescopic rod has the beneficial effects that the telescopic rod with adjustable length is limited and stable and can be adjusted quickly.

Description

Length-adjustable telescopic rod

Technical Field

The utility model relates to the field of telescopic rods, in particular to a telescopic rod with adjustable length.

Background

In daily life, a plurality of objects need to be used by the telescopic rod when needed; however, the common telescopic rod is required to be limited by a positioning piece on the telescopic rod after being stretched, so that the length is troublesome to adjust by operation; therefore, a telescopic rod capable of quickly adjusting the length is derived from the market;

for example, patent number (CN 202220720492.1) is a quick length-adjusting extension and retraction device, which comprises a main rod and a sub rod sleeved in the main rod, wherein a plurality of annular ribs are arranged in the main rod at equal intervals, at least two fixing sheets are uniformly arranged at the top of the sub rod, an arc convex edge corresponding to the annular ribs is arranged at the top of the fixing sheets, and the outer side surface of the sub rod is attached to the annular ribs;

in the structure, the arc convex edge on the fixing piece is matched with the annular convex edge to realize quick positioning; because when adjusting length, telescopic link axial displacement can lead to stationary blade and chimb continuous friction, can lead to the fact wearing and tearing for a long time, can spacing unstable when leading to the use.

There is no telescopic rod capable of quickly adjusting the length and stably positioning.

Disclosure of Invention

The summary of the utility model is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the utility model is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

In order to solve the technical problems mentioned in the background section above, some embodiments of the present utility model provide a length-adjustable telescopic rod, an outer tube configured to have a telescopic slot;

the inner tube is telescopically arranged in the telescopic groove

The telescopic link of adjustable length still includes:

the guide piece is arranged on the inner wall of the telescopic groove so that the inner pipe slides along the axial direction of the outer pipe;

the limiting rings are uniformly arranged on the inner wall of the telescopic groove along the axial direction and used for limiting the inner pipe in the axial direction;

the support block is arranged on the guide piece in a sliding manner, and the surface of the support block is used for supporting the inner pipe;

one end of the inner tube is rotatably arranged on the supporting block and is connected by a torsion spring; the outer wall of the inner tube is provided with a limiting block corresponding to the limiting ring; in the positioning state, the limiting block is embedded between two adjacent limiting rings so that the inner pipe is limited in the axial direction

In the working process, the inner tube is rotated to enable the limiting block to be separated from the limiting ring, and at the moment, the inner tube can move in the axial direction; then the inner tube is loosened, and the limiting block is embedded between the two limiting rings again under the action of the torsion spring, so that the inner tube is limited in the axial direction; the convenience is improved.

Further, the limiting rings are uniformly distributed along the axial direction; the clearance between two adjacent limiting rings in the axial direction is a limiting groove;

the limiting block is inserted into the limiting groove so that the inner pipe is limited in the axial direction.

Further, the limiting block is an elastic piece, and the surface of the limiting block is in contact with the surface of the limiting ring;

the elastic piece is always pressed against the surface of the limiting ring.

Further, a limit strip is arranged on the inner wall of the telescopic groove, and the limit strip is perpendicular to the bottom of the telescopic groove;

the limiting strips are arranged on the side edges of the two ends of the limiting ring, and gaps exist between the side edges of the limiting strips and the end parts of the limiting ring;

the clearance between the side edge of the limit strip and the end part of the limit ring is defined as a guide groove for the limit block to slide.

Further, two ends of the limiting strip form a guiding surface for guiding the limiting block to be embedded between two adjacent limiting rings.

Further, the support block forms a rotation groove into which the inner tube is inserted and rotated;

the bottom of the inner tube is inserted into the rotary groove part and is connected with the bottom of the rotary groove through a torsion spring;

the limiting block is positioned between two adjacent limiting rings in the initial state.

Further, the guide piece is a guide groove arranged on the inner wall of the telescopic groove, and the axial direction of the guide groove extends;

the side wall part of the supporting block is protruded to form a convex block, and the convex block is inserted into the guide piece; so that the supporting block is limited in the circumferential direction of the telescopic groove and can only slide along the extending direction of the guide piece.

The utility model has the beneficial effects that: an adjustable length telescopic rod is provided that is particularly convenient to adjust.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic of an embodiment according to the present utility model;

FIG. 2 is a schematic structural view of a portion of an embodiment, primarily showing an overall half-section view;

FIG. 3 is a schematic view of a portion of an embodiment, mainly illustrating the configuration of the stop collar and stop groove;

fig. 4 is a schematic structural view of a part of the embodiment, mainly showing the structure of the support block.

1. An outer tube; a1, a telescopic groove; a11, a guide groove; a12, limiting rings; a13, a limit groove; a131, a limit bar;

2. an inner tube; 21. a support block; 211. a bump; 22. and 23, a limiting block and a torsion spring.

Description of the embodiments

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A telescopic rod of adjustable length comprising: the outer tube 1, the inner tube 2, the guide piece, the limiting ring a12 and the supporting block 21;

the telescopic rod consists of an outer tube 1 and an inner tube 2 movably arranged in the outer tube 1; specifically, the outer tube 1 is configured to form a telescopic groove a1, and the inner tube 2 is telescopically disposed in the telescopic groove a 1; more specifically, a support block 21 for supporting the inner tube 2 is slidably provided in the expansion groove a 1; the supporting block 21 is matched with a guide piece arranged on the inner wall of the telescopic groove a 1; the guide piece is a guide groove a11 arranged on the inner wall of the telescopic groove a1, and the guide groove a11 extends along the axial direction; the side wall part of the supporting block 21 is protruded to form a protrusion 211, and the protrusion 211 is inserted into the guide; so that the supporting block 21 is limited in the circumferential direction of the expansion slot a1 and can only slide in the extending direction of the guide.

The inner wall of the telescopic groove a1 is provided with a plurality of limiting rings a12, and the limiting rings a12 are uniformly distributed along the axial direction; the clearance between two adjacent limiting rings a12 in the axial direction is a limiting groove a13; the outer wall of the inner tube 2 is provided with a limiting block 22 corresponding to the limiting groove a13, and the limiting block 22 is inserted into the limiting groove a13 so that the inner tube 2 is limited in the axial direction; more specifically, two ends of the limiting ring a12 form guiding surfaces for guiding the limiting block 22 to be embedded into the limiting groove a13; so that the limiting block 22 can easily enter the limiting groove a13, and the accuracy of limiting is improved;

preferably, the limiting block 22 is an elastic piece, and the surface of the limiting block 22 is abutted against the surface of the limiting ring a 12; the elastic piece is always pressed against the surface of the limiting ring a 12; so that the friction force of the inner tube 2 in the circumferential direction of the outer tube 1 can be increased, so that the inner tube cannot easily rotate when in use;

more specifically, a limit strip a131 is arranged on the inner wall of the telescopic groove a1, and the limit strip a131 is perpendicular to the bottom of the telescopic groove a 1; the limit strips a131 are arranged on the side edges of the two ends of the limit ring a12, and gaps exist between the side edges of the limit strips a131 and the end parts of the limit ring a 12; a gap between the side edge of the limit bar a131 and the end of the limit ring a12 is defined as a guiding portion a22 for sliding the limit block 22; more specifically, the support block 21 forms a rotation groove into which the inner tube 2 is inserted and rotated; the bottom of the inner tube 2 is inserted into the rotary groove part and is connected with the bottom surface of the rotary groove through a torsion spring 23; the limiting block 22 is positioned in the limiting groove a13 in the initial state; the inner tube 2 is rotated to enable the limiting block 22 to be located in the guide part a22, and at the moment, the inner tube 2 can move; the stopper 22 moves in the extending direction of the guide portion a22; when the length is regulated to a certain value, the inner tube 2 is loosened, and the limiting block 22 is inserted into the limiting groove a13 for limiting under the action of the torsion spring 23; therefore, the limit rapidness is improved, and the rapidness of adjusting the length of the telescopic rod is further described.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A telescopic rod of adjustable length comprising:

an outer tube configured to have a telescoping slot;

the inner tube is arranged in the telescopic groove in a telescopic way

The method is characterized in that:

the length-adjustable telescopic rod further comprises:

the guide piece is arranged on the inner wall of the telescopic groove so as to enable the inner pipe to slide along the axial direction of the outer pipe;

one end of the inner tube is rotatably arranged on the supporting block and is connected by a torsion spring; the outer wall of the inner tube is provided with a limiting block corresponding to the limiting ring; in the positioning state, the limiting block is embedded between two adjacent limiting rings, so that the inner pipe is limited in the axial direction.

2. The adjustable length telescoping pole of claim 1, wherein:

the limiting rings are uniformly distributed along the axial direction; the gap between two adjacent limiting rings in the axial direction is a limiting groove;

the limiting block is inserted into the limiting groove, so that the inner pipe is limited in the axial direction.

3. The adjustable length telescoping pole of claim 1, wherein:

the limiting block is an elastic piece, and the surface of the limiting block is abutted against the surface of the limiting ring;

the elastic piece is always pressed against the surface of the limiting ring.

4. The adjustable length telescoping pole of claim 1, wherein:

a limiting strip is arranged on the inner wall of the telescopic groove and is perpendicular to the bottom of the telescopic groove;

and a gap between the side edge of the limiting strip and the end part of the limiting ring is defined as a guide groove for the limiting block to slide.

5. The adjustable length telescoping pole of claim 1, wherein:

two ends of the limiting strip are provided with guide surfaces for guiding the limiting blocks to be embedded between two adjacent limiting rings.

6. The adjustable length telescoping pole of claim 1, wherein:

the supporting block forms a rotary groove for the inner pipe to be inserted and rotated;

the bottom of the inner tube is inserted into the rotary groove part and is connected with the bottom of the rotary groove through the torsion spring;

and the limiting block is positioned between two adjacent limiting rings in the initial state.

7. The adjustable length telescoping pole of claim 1, wherein:

the guide piece is a guide groove which is arranged on the inner wall of the telescopic groove, and the axial direction of the guide groove extends;

the side wall part of the supporting block is protruded to form a protruding block, and the protruding block is inserted into the guide piece; so that the supporting blocks are limited in the circumferential direction of the telescopic grooves and can only slide along the extending direction of the guide piece.