A plastic telescopic rod

Abstract

The utility model discloses a plastic telescopic rod, comprising an inner tube and an outer tube slidably arranged on the inner tube through a connecting piece, a first fixed tube head is fixedly arranged at one end of the inner tube, a shell for wrapping the inner tube and the outer tube is fixedly arranged on the first fixed tube head, a second fixed tube head is fixedly arranged at one end of the outer tube, a multi-end limiting groove is fixedly arranged at the upper end of the inner tube, a cavity is arranged in the multi-end limiting groove, a spring is fixedly arranged in the cavity, a limiting device used in conjunction with the limiting groove is arranged on the shell, the utility model can be reset by the spring, and the use of the multi-end limiting groove allows the telescopic rod to be applied to places with different length requirements, thereby increasing the practicality of the telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices, in particular to a plastic telescopic rod. Background Art

[0002] At present, telescopic rods are needed in a large number of places in daily life. For example, a Chinese utility model patent with publication number CN205977937U and the name of the patent is “A telescopic tube for a selfie stick”, which discloses a telescopic tube for a selfie stick, comprising an outer tube and an inner tube, wherein the inner tube is inserted into and sleeved in the outer tube from the rear of the outer tube, and a closing opening is provided at the front end of the outer tube to prevent the inner tube from slipping off, and the characteristics are as follows: the rear part of the inner tube is stamped with outer ribs and inner ribs protruding outward, and the outer ribs and the inner ribs are tightly attached to the inner wall of the outer tube; the length of the outer tube is longer than that of the inner tube; the height of the outer ribs is higher than that of the inner ribs; a U-shaped notch is provided at the lower opening of the outer tube; and the rear part of the outer tube is stamped with a plurality of inwardly sunken stop points.

[0003] However, there are defects in the above structure. Specifically, the telescopic rod cannot automatically return to its original position, and there are few limiting mechanisms, so it cannot be applied to multiple different length requirements.

[0004] Based on the above reasons, it is necessary to improve the existing technology. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model is aimed at the above defects existing in the prior art, and specially proposes a plastic telescopic rod to solve the problems raised in the above background technology.

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model provides a plastic telescopic rod, comprising an inner tube and an outer tube slidably arranged on the inner tube through a connecting piece, a first fixed tube head is fixedly arranged at one end of the inner tube, a shell for wrapping the inner tube and the outer tube is fixedly arranged on the first fixed tube head, a second fixed tube head is fixedly arranged at one end of the outer tube, a limiting groove is fixedly arranged at the upper end of the inner tube, a cavity is arranged in the limiting groove, a spring is fixedly arranged in the cavity, and a limiting device used in conjunction with the limiting groove is arranged on the outer shell.

[0009] In the above technical solution, a soft rubber seal is provided at the connection between the inner tube and the outer tube.

[0010] In the above technical solution, a limiting member is fixedly provided at one end of the shell.

[0011] In the above technical solution, the top of the shell protrudes upward to form a channel, and the height of the channel corresponds to the limiting groove.

[0012] In the above technical solution, the limiting device is a spring limiting member.

[0013] Beneficial Effects

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model can be reset by a spring, and the multi-end limiting grooves are adopted to allow the telescopic rod to be applied to places with different length requirements, thereby increasing the practicality of the telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0018] In the figure: 1 is an inner tube, 2 is an outer tube, 3 is an outer shell, 4 is a multi-end limiting groove, 5 is a spring, 6 is a limiting device, 10 is a first fixed tube head, 20 is a second fixed tube head, 30 is a limiting member, 40 is a cavity, 100 is a connecting member, and 200 is a soft rubber sealing member. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] See also Figure 1-3 The utility model provides a plastic telescopic rod, comprising an inner tube 1 and an outer tube 2 slidably arranged on the inner tube 1 through a connecting piece 100, a first fixed tube head 10 is fixedly arranged at one end of the inner tube 1, a shell 3 for wrapping the inner tube 1 and the outer tube 2 is fixedly arranged on the first fixed tube head 10, a second fixed tube head 20 is fixedly arranged at one end of the outer tube 2, a multi-end limiting groove 4 is fixedly arranged at the upper end of the inner tube 1, a cavity 40 is arranged in the multi-end limiting groove 4, a spring 5 is fixedly arranged in the cavity 40, and a limiting device 6 used in conjunction with the limiting groove is arranged on the shell 3.

[0021] In the above structure, when the outer tube extends outward, the multi-end limiting groove moves outward with the outer tube. When it needs to be fixed, the limiting device is used to clamp the concave part of the multi-end limiting groove, and the spring is deformed by the force of the outer tube sliding outward.

[0022] When the outer tube contracts, it is only necessary to remove the limiting device from the recessed position of the multi-end limiting groove, and the force generated by the spring restoration drives the outer tube to slide inward;

[0023] It can be reset by a spring, and the effects of different extension and retraction lengths can be achieved through different depressions in the multi-end limit grooves.

[0024] Specifically, a soft rubber seal 200 is provided at the connection between the inner tube 1 and the outer tube 2. The soft rubber seal can improve the sealing effect of the connection between the outer tube and the inner tube and enable the telescopic tube to be extended and retracted without hindrance.

[0025] Specifically, a limiting member 30 is fixedly provided at one end of the outer shell 3, and the limiting member is used to limit the sliding of the outer tube, thereby preventing the outer tube from being separated from the inner tube.

[0026] Specifically, the top of the shell 3 protrudes upward to form a channel, and the height of the channel corresponds to the multi-end limit groove 4. The channel can accommodate the multi-end limit groove when the telescopic rod is retracted, so that the visual effect is not abrupt and the aesthetic effect is increased.

[0027] Specifically, the limiting device 6 is a spring limiting member, which has the advantages of high reliability, good stability, and convenient maintenance.

[0028] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plastic telescopic rod, comprising an inner tube (1) and an outer tube (2) slidably arranged on the inner tube (1) via a connecting piece (100), a first fixed tube head (10) being fixedly arranged at one end of the inner tube (1), a shell (3) for wrapping the inner tube (1) and the outer tube (2) being fixedly arranged on the first fixed tube head (10), and a second fixed tube head (20) being fixedly arranged at one end of the outer tube (2), characterized in that: The upper end of the inner tube (1) is fixedly provided with a multi-end limiting groove (4), a cavity (40) is provided in the multi-end limiting groove (4), a spring (5) is fixedly provided in the cavity (40), and the outer shell (3) is provided with a limiting device (6) used in conjunction with the limiting groove.

2. A plastic telescopic rod as claimed in claim 1, characterized in that: A soft rubber seal (200) is provided at the connection between the inner tube (1) and the outer tube (2).

3. A plastic telescopic rod as claimed in claim 1, characterized in that: A limiting member (30) is fixedly provided at one end of the housing (3).

4. A plastic telescopic rod as claimed in claim 1, characterized in that: The top of the housing (3) protrudes upward to form a channel, and the height of the channel corresponds to the multi-end limiting groove (4).

5. A plastic telescopic rod as claimed in claim 1, characterized in that: The limiting device (6) is a spring limiting member.

Images