Rubber tube expansion anti-falling device for air tightness detection

Abstract

The utility model relates to the technical field of pipeline air tightness detection, and provides a rubber tube expansion anti-falling device for air tightness detection, which comprises at least one anti-falling component, the anti-falling component comprises a bottom cylinder seat and a telescopic head, the telescopic head penetrates through the bottom cylinder seat and is in sliding connection with the bottom cylinder seat, and the tail end of the telescopic head is connected with a linear driving piece; an expansion sleeve is connected and wrapped between the telescopic head and the bottom barrel base, and the telescopic head moves downwards through the linear driving piece to extrude the expansion sleeve, so that the expansion sleeve extends outwards to be tightly attached to the pipe wall. According to the utility model, the sealing performance during air tightness detection can be improved, falling is effectively prevented, and the plug is convenient to take out.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline air tightness detection, in particular to a hose expansion and anti-dropping device for air tightness detection. Background Art

[0002] A car is made up of thousands of parts, including several automobile hoses. Automobile hoses include oil hoses, gas hoses and water hoses. Gas hoses include silicone hoses and fluorosilicone hoses used in turbocharged engine exhaust pipes. Automobile exhaust system products, such as round pipes, need to be tested for air tightness so that they cannot leak during normal use. Before testing, the pipe opening must be sealed and then the air tightness test can be performed. When the existing technology uses a plug to seal the pipe opening and inject air, the plug is very easy to separate from the hose under the action of air pressure, resulting in a loose seal. In addition, after the air tightness test, it is inconvenient to remove the plug, and the operation and testing efficiency is low. Utility Model Content

[0003] The utility model aims to provide a hose expansion and anti-dropping device for air tightness detection, which can improve the sealing performance during air tightness detection, effectively prevent drop-off and facilitate the removal of the plug.

[0004] The embodiment of the utility model is realized through the following technical scheme: a rubber hose expansion and anti-detachment device for air tightness detection, comprising at least one anti-detachment component, the anti-detachment component comprising a base cylinder seat and a telescopic head, the telescopic head passes through the base cylinder seat and is slidably connected thereto, the tail end of the telescopic head is connected to a linear driving member; an expansion sleeve is connected and wrapped between the telescopic head and the base cylinder seat, the telescopic head moves downward through the linear driving member to squeeze the expansion sleeve, so that the expansion sleeve extends outward and fits tightly against the pipe wall.

[0005] Preferably, it also includes a mounting base plate and an outer sleeve, the telescopic head and the base sleeve seat are arranged in the middle of the outer sleeve, and the lower end of the outer sleeve is fixedly connected to the mounting base plate, and the lower end of the telescopic head passes through the mounting base plate.

[0006] Preferably, an air hole is opened in the middle of the telescopic head, an air pipe is connected to the lower end of the telescopic head, and the air pipe is communicated with the air hole.

[0007] Preferably, the top end of the telescopic head is T-shaped, and when the telescopic head moves upward, the telescopic head, the expansion sleeve and the bottom cylinder seat form an equal-diameter structure.

[0008] Preferably, the top end of the outer sleeve adopts a conical funnel mouth structure.

[0009] Preferably, the anti-slip assembly is provided with two components installed at both ends of the hose.

[0010] Preferably, the expansion sleeve is made of rubber material.

[0011] Preferably, the linear drive member is a pneumatic cylinder or an electric cylinder.

[0012] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: the utility model connects one end of the hose to the telescopic head and moves it down to the bottom cylinder seat. The linear drive component pulls down the telescopic head to extrude the expansion sleeve to increase its volume, so that the expansion sleeve is tightly attached to the inner wall of the hose, thereby playing an anti-slip effect, having better sealing performance, facilitating the removal of the plug, and improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the front structure of a hose expansion and anti-detachment device for air tightness detection provided by an embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the anti-slip assembly in the utility model;

[0016] Figure 3 The utility model is a top view of the hose expansion and anti-dropping device for air tightness detection.

[0017] Icons: 1-anti-drop assembly, 11-telescopic head, 111-air hole, 12-bottom cylinder seat, 13-outer sleeve, 14-expansion sleeve, 15-linear drive component, 16-mounting base plate, 17-trachea. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] Example

[0022] The following is further described in conjunction with specific embodiments. Figure 1-Figure 3 As shown, the present embodiment is a rubber hose expansion and anti-slip device for air tightness detection, comprising at least one anti-slip component 1, the anti-slip component 1 comprising a bottom cylinder seat 12 and a telescopic head 11, the telescopic head 11 passes through the bottom cylinder seat 12 and is slidably connected thereto, and a linear driving member 15 is connected to the tail end of the telescopic head 11; an expansion sleeve 14 is connected and wrapped between the telescopic head 11 and the bottom cylinder seat 12, and the telescopic head 11 is moved down by the linear driving member 15 to squeeze the expansion sleeve 14, so that the expansion sleeve 14 extends outward and adheres closely to the pipe wall; specifically, the utility model connects the pipe mouth of the rubber hose to the columnar structure formed by the telescopic head 11, the expansion sleeve 14 and the bottom cylinder seat 12, and then the linear driving member 15 pulls down the telescopic head 11 to squeeze the expansion sleeve 14, so that the volume of the expansion sleeve 14 becomes larger and adheres closely to the inner wall of the rubber hose, thereby playing a good anti-slip effect and improving the sealing performance, and when the telescopic head 11 moves up, the volume of the expansion sleeve 14 is reduced, and the rubber hose can be normally separated from the telescopic head 11 and the expansion sleeve 14, and the detection operation is very convenient.

[0023] Reference Figure 2 As shown, the present embodiment also includes a mounting base plate 16 and an outer sleeve 13, the telescopic head 11 and the base sleeve seat 12 are arranged in the middle of the outer sleeve 13, and the lower end of the outer sleeve 13 is fixedly connected to the mounting base plate 16, and the lower end of the telescopic head 11 passes through the mounting base plate 16; specifically, in order to improve the anti-detachment effect, the expansion sleeve 14 squeezes the inner wall of the hose to cooperate with the outer sleeve 13 and the outer wall of the hose to fit, and when performing air tightness testing, it is more difficult for the hose to detach from the telescopic head 11 and the expansion sleeve 14.

[0024] Reference Figure 2 As shown, an air hole 111 is opened in the middle of the telescopic head 11, and the lower end of the telescopic head 11 is connected with an air pipe 17, and the air pipe 17 is communicated with the air hole 111; specifically, after one end of the hose is connected to the telescopic head 11 and the expansion sleeve 14, the air pipe 17 can input gas into the hose through the air hole 111 to perform air tightness detection.

[0025] The top end of the telescopic head 11 in this embodiment is T-shaped. When the telescopic head 11 moves upward, the telescopic head 11, the expansion sleeve 14 and the bottom cylinder seat 12 form an equal-diameter structure. Specifically, because the inner hole diameter of the hose is relatively uniform and the telescopic head 11 does not squeeze the expansion sleeve 14, the equal-diameter structure facilitates the insertion of the hose.

[0026] In order to facilitate the connection of the mouth of the rubber hose to the outer sleeve 13, a conical funnel mouth structure is adopted at the top of the outer sleeve 13 to play a certain guiding role.

[0027] In order to be able to perform air tightness detection on a complete pipe fitting, the anti-dropout assembly 1 in this embodiment is provided with two anti-dropout assemblies 1 installed at both ends of the hose; specifically, the anti-dropout assemblies 1 at both ends can be inflated.

[0028] It is worth noting that the expansion sleeve 14 is made of rubber material and has good deformation recovery ability.

[0029] In addition, the linear drive member 15 adopts a pneumatic cylinder or an electric cylinder; specifically, when performing air tightness detection, it has more air sources, which is convenient for connecting the pneumatic cylinder for use.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hose expansion and anti-dropping device for air tightness detection, characterized in that: The invention comprises at least one anti-slip assembly (1), wherein the anti-slip assembly (1) comprises a bottom cylinder seat (12) and a telescopic head (11), wherein the telescopic head (11) passes through the bottom cylinder seat (12) and is slidably connected thereto, and the rear end of the telescopic head (11) is connected to a linear drive member (15); An expansion sleeve (14) is connected and wrapped between the telescopic head (11) and the bottom cylinder seat (12); the telescopic head (11) moves downward through the linear drive member (15) to squeeze the expansion sleeve (14), so that the expansion sleeve (14) extends outward and adheres closely to the pipe wall.

2. The hose expansion and anti-dropping device for air tightness detection according to claim 1 is characterized in that: It also includes a mounting base plate (16) and an outer sleeve (13), wherein the telescopic head (11) and the base sleeve seat (12) are arranged in the middle of the outer sleeve (13), and the lower end of the outer sleeve (13) is fixedly connected to the mounting base plate (16), and the lower end of the telescopic head (11) passes through the mounting base plate (16).

3. The hose expansion and anti-dropping device for air tightness detection according to claim 2, characterized in that: An air hole (111) is provided in the middle of the telescopic head (11), an air pipe (17) is connected to the lower end of the telescopic head (11), and the air pipe (17) is in communication with the air hole (111).

4. The hose expansion and anti-dropping device for air tightness detection according to claim 3 is characterized in that: The top end of the telescopic head (11) is T-shaped. When the telescopic head (11) moves upward, the telescopic head (11), the expansion sleeve (14) and the bottom cylinder seat (12) form an equal diameter structure.

5. The hose expansion and anti-dropping device for air tightness detection according to claim 2, characterized in that: The top end of the outer sleeve (13) adopts a conical funnel mouth structure.

6. The hose expansion and anti-dropping device for air tightness detection according to any one of claims 1 to 5, characterized in that: The anti-slip assembly (1) is provided with two ends mounted on the two ends of the rubber hose.

7. The hose expansion and anti-dropping device for air tightness detection according to claim 1, characterized in that: The expansion sleeve (14) is made of rubber material.

8. The hose expansion and anti-dropping device for air tightness detection according to claim 1, characterized in that: The linear drive member (15) is a pneumatic cylinder or an electric cylinder.

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