CN218773487U

CN218773487U - Telescopic mechanism of pull rod

Info

Publication number: CN218773487U
Application number: CN202223366140.XU
Authority: CN
Inventors: 王赛鹏
Original assignee: Shanxi Qiyi Window Control Technology Co ltd
Current assignee: Shanxi Qiyi Window Control Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-03-31
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a telescopic machanism of pull rod, including the expansion pipe, the expansion pipe is U type structure, the expansion pipe sliding connection be equipped with the U type pole of expansion pipe tip complex, the expansion pipe top is connected and is equipped with the drive chamber, it is equipped with and drives the gliding driving piece of U type pole to drive the intracavity connection, sliding connection is equipped with fixed pipe on the both ends outer wall of expansion pipe respectively, fixed pipe other end is connected and is equipped with the mounting panel, the tip of expansion pipe articulates respectively in fixed intraductal and is equipped with a plurality of card lamella, the card lamella can be spacing between expansion pipe and the fixed pipe under the drive of U type pole. Compared with the prior art, the utility model the advantage lie in: simple structure, convenient operation, be convenient for flexible wantonly.

Description

Telescopic mechanism of pull rod

Technical Field

The utility model relates to the technical field of daily necessities, specifically indicate a telescopic machanism of pull rod.

Background

In travel and business trip, people usually choose a proper draw-bar box in order to carry a large number of personal belongings; however, most of common draw-bar boxes are telescopic in two gears or three gears, and when the draw-bar box is used, the draw-bar box is adjusted to a corresponding height gear and locked for use; however, due to different heights of people or different arm lengths in different ages, corresponding gears cannot adapt to all individuals to reach corresponding comfortable heights, and the people have discomfort feeling of being too high or too low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a simple structure, convenient operation, be convenient for an arbitrary telescopic machanism of pull rod that stretches out and draws back.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a telescopic machanism of pull rod, includes the expansion pipe, the expansion pipe is U type structure, the expansion pipe internal sliding connection be equipped with the U type pole of expansion pipe tip complex, the connection of expansion pipe top is equipped with the drive chamber, it is equipped with and drives the gliding driving piece of U type pole to drive the intracavity connection, sliding connection is equipped with fixed pipe on the both ends outer wall of expansion pipe respectively, fixed pipe other end connection is equipped with the mounting panel, the tip of expansion pipe articulates respectively in fixed intraductal being equipped with a plurality of card lamellas, the card lamella can be spacing between expansion pipe and the fixed pipe under the drive of U type pole.

Compared with the prior art, the utility model the advantage lie in: the driving piece drives the U-shaped rod to slide in the range of the driving cavity, when the U-shaped rod slides upwards under the driving of the driving piece, two ends of the U-shaped rod are not matched with the clamping flaps, the clamping flaps naturally drop downwards in the fixed pipe, and at the moment, the middle part of the movable pipe can be pulled to freely move upwards and downwards in the fixed pipe; when the driving piece is loosened, the U-shaped rod resets downwards, the two ends of the U-shaped rod extend out between the clamping flaps, the clamping flaps are driven to outwards butt against the inner wall of the fixed pipe, and the movable pipe is positioned in the fixed pipe under the action of friction force.

Furthermore, the driving piece comprises a convex block connected to the bottom end of the middle part of the U-shaped rod, a through hole is connected to the bottom end of the middle part of the movable tube and matched with the convex block, springs are respectively connected to two sides of the convex block of the U-shaped rod, the other end of each spring is connected with the inner wall of the driving cavity, when the convex block is pressed down, the convex block penetrates through the through hole and slides to the driving cavity, the convex block drives the U-shaped rod to slide upwards, and the springs are stressed and stretched; when the lug is loosened, the U-shaped rod drives the lug to penetrate through the through hole and slide out of the driving cavity under the reset contraction action of the spring.

Furthermore, the cross section of each clamping flap is of a trapezoidal structure with a small upper part and a large lower part, so that when the U-shaped rod goes deep into the clamping flaps, the clamping flaps are stressed to expand outwards, and the inner wall of the fixing pipe is abutted.

Furthermore, the clamping valve is connected with a wear-resistant anti-slip layer on the outer side, and the friction between the clamping valve and the inner wall of the fixed pipe is increased conveniently due to the wear-resistant anti-slip layer, so that the clamping valve is stable and limited conveniently.

Further, fixed union coupling top is equipped with the spacing ring, U type pole bottom connect be equipped with spacing ring complex stopper, avoid the activity pipe slippage from between the fixed pipe through setting up of spacing ring and stopper.

Furthermore, the middle part of the movable pipe is connected with an anti-slip handle, and the anti-slip handle is convenient for a hand to effectively drive the pull rod.

Drawings

Fig. 1 is a schematic structural view of the telescopic mechanism of the pull rod of the present invention in an unlocked state.

Fig. 2 is a schematic structural view of the telescopic mechanism of the pull rod of the present invention in a limit state.

As shown in the figure: 1. the anti-skid device comprises a movable pipe, 2, a U-shaped rod, 3, a driving cavity, 4, a fixed pipe, 5, a mounting plate, 6, a clamping flap, 7, a bump, 8, a through hole, 9, a spring, 10, a wear-resistant anti-skid layer, 11, a limiting ring, 12, a limiting block, 13 and an anti-skid handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine shown in figure 1-2, a telescopic machanism of pull rod, including activity pipe 1, activity pipe 1 is U type structure, 1 sliding connection in the activity pipe is equipped with 1 tip complex U type pole 2 of activity pipe, 1 top connection of activity pipe is equipped with

drive chamber

3, 3 in-connection in the drive chamber are equipped with and drive the gliding driving piece of U type pole 2, sliding connection is equipped with fixed pipe 4 respectively on the both ends outer wall of activity pipe 1, fixed 4 other end connections of pipe are equipped with mounting panel 5, the tip of activity pipe 1 articulates respectively in fixed pipe 4 and is equipped with a plurality of card lamella 6, card lamella 6 can be spacing between activity pipe 1 and fixed pipe 4 under U type pole 2's drive.

The driving piece comprises a convex block 7 connected to the bottom end of the middle part of the U-shaped rod 2, a through hole 8 is connected to the bottom end of the middle part of the movable tube 1, the through hole 8 is matched with the convex block 7, springs 9 are respectively connected to two sides of the convex block 7 of the U-shaped rod 2, and the other end of each spring 9 is connected with the inner wall of the driving cavity 3; the section of the clamping flap 6 is of a trapezoidal structure with a small upper part and a big lower part; the outer side of the clamping flap 6 is connected with a wear-resistant anti-skid layer 10; the top end of the fixed pipe 4 is connected with a limiting ring 11, and the bottom end of the U-shaped rod 2 is connected with a limiting block 12 matched with the limiting ring 11; the middle part of the movable tube 1 is connected with an anti-skid handle 13.

The utility model discloses when the concrete implementation, through driving the driving piece, driving piece drive U type pole 2 slides in driving chamber 3 within range, when U type pole 2 upwards slides under the drive of driving piece, press lug 7, lug 7 runs through hole 8 and slides to driving chamber 3, lug 7 drives U type pole 2 upwards slides, spring 9 atress is tensile, U type pole 2 both ends no longer cooperate with card lamella 6, card lamella 6 naturally hangs down in fixed pipe 4, can freely reciprocate in fixed pipe 4 through pulling the middle part of movable pipe 1 at this moment; when the driving piece is loosened, the protrusion 7 is loosened, the U-shaped rod 2 drives the protrusion 7 to slide out of the driving cavity 3 through the through hole 8 under the reset contraction action of the spring 9, the U-shaped rod 2 resets downwards, two ends of the U-shaped rod 2 extend out between the clamping flaps 6 at the moment, the clamping flaps 6 are driven to outwards butt against the inner wall of the fixing tube 4, and the section of each clamping flap 6 is of a trapezoidal structure with a small upper part and a large lower part, so that when the U-shaped rod 2 penetrates into the clamping flaps 6, the clamping flaps 6 are forced to outwards expand to butt against the inner wall of the fixing tube 4; under the action of friction force, the arrangement of the wear-resistant and anti-slip layer 10 is convenient for increasing the friction between the clamping flap 6 and the inner wall of the fixed pipe 4 and is convenient for stably positioning the movable pipe 1 in the fixed pipe 4; the movable pipe 1 is prevented from slipping between the fixed pipes 4 through the arrangement of the limiting ring 11 and the limiting block 12, and the anti-slip handle 13 is convenient for a hand to effectively drive the pull rod.

The present invention and its embodiments have been described above, but the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. The utility model provides a telescopic machanism of pull rod, includes activity pipe (1), its characterized in that: activity pipe (1) is U type structure, sliding connection is equipped with U type pole (2) with activity pipe (1) tip complex in activity pipe (1), activity pipe (1) top is connected and is equipped with drive chamber (3), drive chamber (3) in-connection is equipped with and drives U type pole (2) gliding driving piece, sliding connection is equipped with fixed pipe (4) respectively on the both ends outer wall of activity pipe (1), fixed pipe (4) other end is connected and is equipped with mounting panel (5), the tip of activity pipe (1) hinges respectively in fixed pipe (4) and is equipped with a plurality of card lamella (6), card lamella (6) can carry on spacingly under the drive of U type pole (2) between activity pipe (1) and fixed pipe (4).

2. The telescopic mechanism of a draw bar of claim 1, wherein: the driving piece is including connecting in lug (7) of U type pole (2) middle part bottom, movable tube (1) middle part bottom is connected and is equipped with through hole (8), through hole (8) and lug (7) cooperation, U type pole (2) are connected respectively in lug (7) both sides and are equipped with spring (9), drive chamber (3) inner wall is connected to the spring (9) other end.

3. The telescopic mechanism of a draw bar of claim 1, wherein: the section of the clamping flap (6) is of a trapezoidal structure with a small upper part and a large lower part.

4. The telescopic mechanism of a draw bar of claim 1, wherein: and a wear-resistant anti-slip layer (10) is connected and arranged on the outer side of the clamping valve (6).

5. The telescopic mechanism of a draw bar of claim 1, wherein: fixed pipe (4) top is connected and is equipped with spacing ring (11), U type pole (2) bottom is connected and is equipped with and spacing ring (11) complex stopper (12).

6. The telescopic mechanism of a draw bar of claim 1, wherein: the middle part of the movable pipe (1) is connected with an anti-skid handle (13).