A connecting film and telescopic tube

Abstract

The utility model discloses a connecting rubber sheet and a telescopic tube, which relates to the technical field of telescopic tubes, and comprises two anti-slip sheets, which can be enclosed into a ring and sleeved on the inner tube end of the telescopic tube, and the inner wall of the anti-slip sheet is provided with a hanging point, which is used to extend into and clamp into a through hole on the side wall of the inner tube, and the end of the anti-slip sheet away from the inner tube is provided with a limiting step, which is used to contact the end of the inner tube, and the inner side wall of the anti-slip sheet is provided with a reinforcing rib, which is arranged close to the limiting step, and is used to be embedded in the notch of the inner tube end, and the end of the anti-slip sheet away from the inner tube end can clamp the rubber sleeve of the outer tube end of the telescopic tube when the telescopic tube is stretched. The utility model can improve the tensile strength and assembly efficiency of the telescopic tube.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic tubes, in particular to a connecting film and a telescopic tube. Background Art

[0002] In metal telescopic tube products, films are used as connectors between metal tubes to prevent scratches and falling off. The material, structure, and size of the films determine the physical properties of the tension and smoothness between the sections of the telescopic tube. Due to frequent use, when the film structure and size are unreasonable, problems such as decreased tension, uneven stretching, and film breakage and falling off are likely to occur, resulting in customer loss complaints.

[0003] The connection position of the metal telescopic tube product is usually assembled by combining two semicircular films. However, the existing films have the following defects:

[0004] 1. The wall thickness is thin, and the stress-bearing part of the film and the metal telescopic tube is only a circle of hanging platform protruding from the end of the film. It is easy to break and fall off during use, making the tensile strength of the film weak;

[0005] 2. When assembling the film, there is only one hole on the metal tube that matches the convex hanging point on the film to locate it, and the positioning time is relatively long;

[0006] 3. Only the thickness of the hanging platform at the end of the film is increased, which will increase the overall length of the product, which does not meet the requirements. Utility Model Content

[0007] The utility model aims to provide a connecting film and a telescopic tube to solve the problems existing in the above-mentioned prior art and improve the tensile strength and assembly efficiency of the telescopic tube.

[0008] To achieve the above purpose, the utility model provides the following solutions:

[0009] The utility model provides a connecting rubber sheet and a telescopic tube, comprising two anti-slip sheets, the two anti-slip sheets can be enclosed into a circular ring and sleeved on the inner tube end of the telescopic tube, and the inner wall of the anti-slip sheet is provided with a hanging point, the hanging point is used to extend into and clamped in the through hole on the side wall of the inner tube, the end of the anti-slip sheet away from the inner tube is provided with a limiting step, the limiting step is used to contact the end of the inner tube, the inner side wall of the anti-slip sheet is provided with a reinforcing rib, the reinforcing rib is arranged close to the limiting step, and the reinforcing rib is used to embed into the notch at the end of the inner tube, and the end of the anti-slip sheet away from the inner tube end can clamp the rubber sleeve at the outer tube end of the telescopic tube when the telescopic tube is stretched.

[0010] Preferably, the outer wall of the anti-slip sheet is provided with anti-slip grooves.

[0011] Preferably, a side of the reinforcing rib away from the anti-slip sheet is flush with a side of the limiting step away from the anti-slip sheet.

[0012] Preferably, the reinforcing rib is in the shape of an elongated strip.

[0013] The utility model also provides a telescopic tube, comprising an outer tube, an inner tube, a rubber sleeve and a connecting rubber piece described in any one of the above technical solutions, wherein the connecting rubber piece is sleeved on the outer periphery of the end of the inner tube, the rubber sleeve is installed on the inner wall of the end of the outer tube, and the inner tube can move relative to the outer tube until the connecting rubber piece is stuck on one end of the rubber sleeve.

[0014] Preferably, the end of the inner tube is provided with the notch, the notch is used to accommodate the reinforcing rib, and the notch is U-shaped.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a connecting rubber sheet and a telescopic tube, wherein the two anti-slip sheets can be enclosed into a circular ring and sleeved on the inner tube end of the telescopic tube, and the inner wall of the anti-slip sheet is provided with a hanging point, which is used to extend into and be clamped in the through hole on the side wall of the inner tube, and then the connection stability between the anti-slip sheet and the inner tube is improved through the mutual limitation of the hanging point and the through hole, and a limiting step is provided on the end of the anti-slip sheet away from the inner tube, and the limiting step is used to contact the end of the inner tube, and a reinforcing rib is provided on the inner side wall of the anti-slip sheet to increase the wall thickness of the part of the anti-slip sheet, and the reinforcing rib is arranged close to the limiting step, and the reinforcing rib is used to embed into the inner tube. The notch at the end can limit the reinforcing rib through the notch without affecting the original length of the telescopic tube. The setting of the reinforcing rib is equivalent to increasing the circumference of the anti-slip plate and the contact area with the inner tube, thereby reducing the force degree per unit area of ​​the anti-slip plate, improving the tensile strength of the telescopic tube, and preventing breakage and detachment. At the same time, during assembly, the notch is aligned with the reinforcing rib, and the hanging point is aligned with the through hole, which can improve the assembly efficiency. The end of the anti-slip plate away from the end of the inner tube can clamp the rubber sleeve at the end of the outer tube of the telescopic tube when the telescopic tube is stretched, thereby achieving limitation after stretching into place. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the connecting film provided in Example 1;

[0019] Figure 2 It is a structural schematic diagram of the stop slide in the first embodiment;

[0020] Figure 3 A schematic diagram of the structure of the telescopic tube provided in the second embodiment;

[0021] Figure 4 This is a schematic diagram of the structure when the outer tube is removed in the second embodiment;

[0022] Figure 5 It is a schematic diagram of the structure of the rubber sleeve in the second embodiment;

[0023] In the figure: 1-outer tube, 2-inner tube, 3-anti-slip sheet, 4-rubber sleeve, 5-reinforcement rib, 6-hanging point, 7-limiting step. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model aims to provide a connecting film and a telescopic tube to solve the problems existing in the prior art and improve the tensile strength and assembly efficiency of the telescopic tube.

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Embodiment 1

[0028] like Figure 1-Figure 5As shown, the present embodiment provides a connecting rubber sheet, including two anti-slip sheets 3, the two anti-slip sheets 3 can be enclosed into a ring and sleeved on the end of the inner tube 2 of the telescopic tube, and the inner wall of the anti-slip sheet 3 is provided with a hanging point 6, the hanging point 6 is used to extend into and be clamped in the through hole on the side wall of the inner tube 2, and then the mutual limitation of the hanging point 6 and the through hole is improved to improve the connection stability between the anti-slip sheet 3 and the inner tube 2, the end of the anti-slip sheet 3 away from the inner tube 2 is provided with a limiting step 7, the limiting step 7 is used to contact the end of the inner tube 2, the inner side wall of the anti-slip sheet 3 is provided with a reinforcing rib 5, which plays a role in increasing the partial wall thickness of the anti-slip sheet 3, the reinforcing rib 5 is arranged close to the limiting step 7, and the reinforcing rib The rib 5 is used to be embedded in the notch at the end of the inner tube 2, so that the rib 5 can be limited by the notch without affecting the original length of the telescopic tube. The provision of the rib 5 is equivalent to increasing the circumference of the anti-slip sheet 3 and the contact area with the inner tube 2, thereby reducing the force degree per unit area of ​​the anti-slip sheet 3, improving the tensile strength of the telescopic tube, and preventing breakage and detachment. At the same time, during assembly, the notch is aligned with the rib 5, and the hanging point 6 is aligned with the through hole, which can improve the assembly efficiency. The end of the anti-slip sheet 3 away from the end of the inner tube 2 can clamp the rubber sleeve 4 at the end of the outer tube 1 of the telescopic tube when the telescopic tube is stretched, thereby achieving limitation after stretching into place.

[0029] Specifically, the outer wall of the anti-slip sheet 3 is provided with anti-slip grooves to increase the contact friction between the anti-slip sheet 3 and the outer tube 1, thereby improving the connection stability.

[0030] The side of the reinforcing rib 5 away from the anti-slip sheet 3 is flush with the side of the limiting step 7 away from the anti-slip sheet 3 to avoid affecting the connection stability between the inner tube 2 and the outer tube 1 .

[0031] The reinforcing rib 5 is in the shape of an elongated strip, and the length direction of the reinforcing rib 5 is along the circumferential direction of the inner tube 2 .

[0032] Embodiment 2

[0033] like Figure 1-Figure 5 As shown, this embodiment provides a telescopic tube, comprising an outer tube 1, an inner tube 2, a rubber sleeve 4 and a connecting rubber of any one of the above technical solutions, the end periphery of the inner tube 2 is provided with a connecting rubber, the rubber sleeve 4 is installed on the inner wall of the end of the outer tube 1, and the inner tube 2 can move relative to the outer tube 1 until the connecting rubber is clamped at one end of the rubber sleeve 4, thereby realizing the clamping after being stretched into place.

[0034] Specifically, a notch is provided at the end of the inner tube 2 , and the notch is used to accommodate the reinforcing rib 5 . The notch is U-shaped, and the shape of the notch is consistent with the shape of the reinforcing rib 5 .

[0035] In actual application, the telescopic tube is usually assembled by combining multiple inner tubes 2 and multiple outer tubes 1. When assembling the next section of inner tube 2 and outer tube 1, the previously assembled inner tube 2 and outer tube 1 need to be stretched into place before the next assembly operation can be carried out. In addition, each tube body serves as both the outer tube 1 of the previous tube body and the inner tube 2 of the next tube body, that is, one end of the first tube body in the length direction extends into one end of the second tube body, and the other end of the second tube body extends into one end of the third tube body, and so on, thereby realizing the telescopic connection of multiple tube bodies.

[0036] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A connecting film, characterized in that: It comprises two anti-slip sheets, which can be formed into a circle and sleeved on the inner tube end of the telescopic tube, and the inner wall of the anti-slip sheet is provided with a hanging point, which is used to extend into and clamped in the through hole on the side wall of the inner tube, and the end of the anti-slip sheet away from the inner tube is provided with a limiting step, and the limiting step is used to contact the end of the inner tube, and the inner side wall of the anti-slip sheet is provided with a reinforcing rib, which is arranged close to the limiting step and is used to embed into the notch at the end of the inner tube, and the end of the anti-slip sheet away from the inner tube end can clamp the rubber sleeve at the outer tube end of the telescopic tube when the telescopic tube is stretched.

2. The connecting film according to claim 1, characterized in that: The outer wall of the anti-slip sheet is provided with anti-slip grooves.

3. The connecting film according to claim 1, characterized in that: A side of the reinforcing rib away from the anti-slip sheet is flush with a side of the limiting step away from the anti-slip sheet.

4. The connecting film according to claim 1, characterized in that: The reinforcing rib is in the shape of an elongated strip.

5. A telescopic tube, characterized in that: It comprises an outer tube, an inner tube, a rubber sleeve and the connecting rubber described in any one of claims 1 to 4, the connecting rubber is sleeved on the outer periphery of the end of the inner tube, the rubber sleeve is installed on the inner wall of the end of the outer tube, and the inner tube can move relative to the outer tube until the connecting rubber is stuck at one end of the rubber sleeve.

6. The telescopic tube according to claim 5, characterized in that: The end of the inner tube is provided with the notch, the notch is used to accommodate the reinforcing rib, and the notch is U-shaped.

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