Airtight tool capable of being replaced quickly

Abstract

The utility model discloses a quick-change airtight tool which comprises a base, an O-shaped ring is installed on the axial sealing portion of the base, a check ring is installed on the side, away from an inner cavity of the base, of the O-shaped ring, the check ring and the front end of the inner cavity of the base are axially sealed through the O-shaped ring, a spring is installed at the front end of the check ring, and the O-shaped ring is connected with the spring. A plug is installed between the spring and the front end of the O-shaped ring, and the base of the base is in threaded connection with a second locking ring. The airtight tool capable of being rapidly replaced is suitable for airtight modes under low pressure, medium pressure and high pressure, the structure is universal, one tool can be suitable for airtight of multiple products, the cost is reduced, meanwhile, the labor intensity of workers is relieved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness of hose products, specifically a quick-change airtight tooling. Background Technology

[0002] Rubber hoses are widely used in various industrial sectors, especially in the automotive industry, where their sealing performance plays a crucial role.

[0003] This requires rubber manufacturers to ensure that rubber hoses are airtight before they leave the factory. Existing airtight methods include clamping and locking the hose and connector for airtightness, interference fit between the hose and the plug for airtightness, and using internal expansion or external clamping for airtightness. Utility Model Content

[0004] The purpose of this invention is to provide a quick-change airtight tooling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-change airtight fixture includes a base, an O-ring 1 installed on the axial sealing part of the base, a retaining ring installed on the side of the O-ring 1 away from the inner cavity of the base, an O-ring 2 axially sealing the retaining ring and the front end of the inner cavity of the base, a spring installed at the front end of the retaining ring, a plug installed between the spring and the front end of the O-ring 1, a locking ring 2 threadedly connected to the base, and a locking ring 1 fixedly connected at the middle part of the retaining ring 2 and the locking ring 2.

[0007] As a further embodiment of this utility model: the outer wall of the retaining ring is provided with an annular groove, and the O-ring is adapted to the annular groove on the outer wall of the retaining ring.

[0008] As a further improvement of this utility model: a second annular groove is provided on the lower part of the outer wall of the spring, and the second annular groove is adapted to the plug.

[0009] As a further improvement of this utility model: the spring and the retaining ring are connected by a thread.

[0010] As a further improvement of this utility model, the spring and the plug are sealed to the cross-section of the retaining ring.

[0011] As a further improvement of this utility model: the end face of the base away from the second locking ring is provided with an air source interface two and an air source interface one, respectively, and the front end of the second locking ring is provided with a bubble observation port.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This practical method uses clamps to lock the hoses and connectors in an airtight manner, but it is inefficient, requires a lot of labor intensity for workers, and the clamps need to be replaced frequently.

[0014] This utility model, including the interference fit of the hose and plug, ensures airtightness. It is only suitable for low-pressure airtight hoses and cannot be used for high-pressure airtight hoses.

[0015] This practical, internally expanding, or externally encasing airtight fixture requires the installation of rubber blocks inside, and each type of fixture is only suitable for one type of product. It has high processing costs and limited versatility, but its structure is more optimized and its design more rational.

[0016] This utility model is applicable to airtightness methods under low, medium, and high pressure conditions. It has a universal structure, and one tooling can be used for airtightness of multiple products, reducing costs while alleviating the labor intensity of workers and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a quick-change airtight tooling.

[0018] Figure 2 This is a cross-sectional view of a quick-change airtight tooling.

[0019] Figure 3 This is a partial structural diagram of a quick-change airtight tooling.

[0020] Figure 4 This is an assembly drawing for a quick-change airtight tooling.

[0021] In the diagram: 1. Base, 2. O-ring 1, 3. Retaining ring, 4. O-ring 2, 5. Plug, 6. Spring, 7. Locking ring 1, 8. Air source interface 2, 9. Air source interface 1, 10. Bubble observation port, 11. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4In this embodiment of the present invention, a quick-change airtight tooling includes a base 1, an O-ring 2 installed on the axial sealing part of the base 1, a retaining ring 3 installed on the side of the O-ring 2 away from the inner cavity of the base 1, an O-ring 4 axially sealing the retaining ring 3 and the front end of the inner cavity of the base 1, a spring 6 installed on the front end of the retaining ring 3, a plug 5 installed between the spring 6 and the front end of the O-ring 2, a locking ring 8 threadedly connected to the base 1, and a locking ring 7 fixedly connected between the retaining ring 3 and the locking ring 8.

[0024] The outer wall of the retaining ring 3 has an annular groove, and the O-ring 2 is adapted to the annular groove on the outer wall of the retaining ring 3.

[0025] A second annular groove is provided on the lower part of the outer wall of the spring 6, and the second annular groove is compatible with the plug 5.

[0026] The spring 6 is threadedly connected to the retaining ring 3.

[0027] The spring 6 and the plug 5 are installed in a cross-sectional seal with the retaining ring 3.

[0028] Air source interface 2 9 and air source interface 10 are respectively opened on the end face of the base 1 away from the locking ring 2 8, and air bubble observation port 11 is opened at the front end of the locking ring 2 8.

[0029] The working principle of this utility model is as follows:

[0030] When in use, insert the hose into the spring 6. The air source interface 2 9 and the air source interface 1 10 push the retaining ring 3 to move upward, while simultaneously driving the spring 6 and the locking ring 1 7 to compress upward. The outer wall of the hose and the locking ring 8 form a compression lock.

[0031] Air source interface 2 9 and air source interface 1 10 are connected to each other through the small hole between the retaining ring 3 and the spring 6. Air is then injected to complete the airtightness test. After the airtightness test is completed:

[0032] Disconnect air source interface 10 from air source interface 29 and air source interface 10. Locking ring 17 pushes the retaining ring 3 to reset. Spring 6 and retaining ring 3 are threadedly connected. Locking ring 28 is threadedly connected to base 1. When changing to hoses with different inner diameter specifications, only locking ring 28 and spring 6 need to be replaced to switch to other specifications for airtightness.

[0033] Regarding its versatility, the locking ring 28 replaces the traditional clamp locking function, while reducing the labor intensity of workers and improving production efficiency;

[0034] It is applicable to testing under three airtight pressures: low, medium, and high.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-change airtight tooling, comprising a base (1), characterized in that: The axial sealing part of the base (1) is equipped with an O-ring one (2), and a retaining ring (3) is installed on the side of the O-ring one (2) away from the inner cavity of the base (1). The retaining ring (3) and the front end of the inner cavity of the base (1) are axially sealed with an O-ring two (4). A spring (6) is installed at the front end of the retaining ring (3). A plug (5) is installed between the spring (6) and the front end of the O-ring one (2). The base of the base (1) is threadedly connected with a locking ring two (8). The middle part of the retaining ring (3) and the locking ring two (8) is fixedly connected with a locking ring one (7).

2. The quick-change airtight tooling according to claim 1, characterized in that: The outer wall of the retaining ring (3) is provided with an annular groove, and the O-ring (2) is adapted to the annular groove on the outer wall of the retaining ring (3).

3. The quick-change airtight tooling according to claim 1, characterized in that: The lower part of the outer wall of the spring (6) is provided with an annular groove 2, and the annular groove 2 is compatible with the plug (5).

4. The quick-change airtight tooling according to claim 1, characterized in that: The spring (6) is threadedly connected to the retaining ring (3).

5. A quick-change airtight tooling according to claim 3, characterized in that: The spring (6) and plug (5) are sealed to the cross section of the retaining ring (3).

6. The quick-change airtight tooling according to claim 1, characterized in that: The base (1) has an air source interface 2 (9) and an air source interface 1 (10) on the end face away from the locking ring 2 (8), and the front end of the locking ring 2 (8) has an air bubble observation port (11).

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