Insulation leak detection quick joint

By introducing a locking component and a snap-fit ​​structure into the quick-connector for insulation leak detection, the problem of handle rebound is solved, enabling rapid locking of the lever and ensuring the continuity of airtightness testing.

CN224079767UActive Publication Date: 2026-04-03NINGBO HAISHU JIACHENG HARDWARE TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing quick-connector for insulation leak detection lacks a locking function for the handle, which causes the handle to easily spring back and reset during testing, affecting the accuracy of airtightness testing.

Method used

A structure including a locking assembly, a connecting rod, a insert rod, a limiting block, and a push-button buckle is designed. The connecting rod is fixed by the locking assembly, and the insert rod passes through the lever and the connecting rod and is quickly locked by the push-button buckle to prevent the lever from springing back.

Benefits of technology

This design enables quick fixation of the lever, preventing it from springing back during leak testing and ensuring the continuity and accuracy of airtightness testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of airtight leak detection, in particular to an insulation leak detection quick joint, which comprises a mounting seat. A deflector rod is arranged on the outer side of the mounting seat, a connecting seat is mounted on the surface of the top of the mounting seat, the locking assemblies are arranged on the surfaces of the front side and the rear side of the connecting seat, one end of the connecting rod is arranged on the outer side of each locking assembly, and the other end of the connecting rod is attached to the deflector rod; an inserting rod is arranged between the two connecting rods and the shifting rod in a penetrating manner; a limiting block is mounted at the front end of the inserting rod; by arranging the locking assembly, the connecting rod can be installed and fixed, after the shifting rod is shifted, the inserting rod can be inserted into the front connecting rod and penetrate through the shifting rod and the rear connecting rod till the limiting block is attached to the outer surface of the front connecting rod, then the pressing type buckle is clamped at the rear end of the inserting rod, and the position of the shifting rod can be rapidly fixed; and the problem that the test needs to be carried out again because the deflector rod rebounds during the leak detection test is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of airtight leak detection, and in particular to quick connectors for insulation leak detection. Background Technology

[0002] In actual production, for some products that require airtight leak testing, a leak test connector is generally connected to the pipe fittings on the product to be tested. Then, an air source is connected through the leak test connector, and gas is introduced into the product to be tested using the air source. The product is then placed in water to observe whether there are any bubbles, thereby determining whether the product to be tested has a leak.

[0003] Existing quick-connectors for insulation leak detection lack a quick-locking mechanism for the toggle handle. When performing airtightness testing after connecting to a pipeline, the toggle handle is prone to springing back and resetting, causing the connector to lose its positioning on the pipeline, and the test needs to be repeated.

[0004] Therefore, in view of the problem that the existing quick-connectors for insulation leak detection lack a locking function for the handle, which causes the handle to easily spring back and reset during testing, there is an urgent need to design a new type of quick-connector for insulation leak detection. Utility Model Content

[0005] To overcome the problem that existing quick-connectors for insulation leak detection lack a locking function for the handle, causing the handle to easily spring back and reset during testing.

[0006] The technical solution of this utility model is as follows: an insulation leak detection quick connector, including a mounting base; it also includes a locking component, a connecting rod, a plug rod, a limiting block, and a press-type buckle. A lever is provided on the outer side of the mounting base, a connecting base is installed on the top surface of the mounting base, and locking components are provided on both the front and rear surfaces of the connecting base. One end of the connecting rod is provided on the outer side of the locking component, and the other end of the connecting rod is in contact with the lever. A plug rod is provided through the two connecting rods and the lever. A limiting block is installed at the front end of the plug rod, and a press-type buckle is provided at the rear end of the plug rod.

[0007] Preferably, by setting a locking component, the connecting rod can be installed and fixed. After the lever is turned, the insert rod can be inserted from the front connecting rod and pass through the lever and the rear connecting rod until the limiting block is in contact with the outer surface of the front connecting rod. Then, the press-type buckle is locked at the rear end of the insert rod, which can quickly fix the position of the lever and prevent the lever from springing back during leak detection testing, causing the test to need to be repeated. This solves the problem that the existing quick-connect insulation leak detection connector does not have a quick locking structure for the lever, and when the airtightness test is performed after connecting the pipeline, the lever is prone to springing back and resetting, causing the connector to lose its positioning on the pipeline, and the test needs to be repeated.

[0008] Preferably, the locking assembly includes a fixing screw and a washer; the front and rear surfaces of the connecting seat are threaded with fixing screws, the fixing screws pass through the corresponding connecting rods, and the outer surface of the fixing screws is fitted with a washer near the connecting seat.

[0009] Preferably, a rotating shaft is rotatably connected through the front and rear surfaces of the mounting base, the rotating shaft passes through the lever, and positioning nuts are threaded onto both the front and rear surfaces of the outer surface of the rotating shaft.

[0010] Preferably, a connecting strip is provided at the end of the lever away from the mounting base, and a handle is connected to the lever through the connecting strip.

[0011] Preferably, the outer surface of the grip is covered with a protective sleeve, and the protective sleeve is bonded to the grip with strong adhesive.

[0012] Preferably, a guide rod is mounted on the bottom surface of the mounting base, and a slide block is slidably connected to the outer surface of the guide rod.

[0013] Preferably, the guide rod has an external thread at the lower part of its outer surface, and a rubber pad is connected to the outer surface of the guide rod through the external thread.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting a locking component, the connecting rod can be installed and fixed. After moving the lever, the insert rod can be inserted from the front connecting rod and pass through the lever and the rear connecting rod until the limiting block is in contact with the outer surface of the front connecting rod. Then, the press-type buckle is locked at the rear end of the insert rod, which can quickly fix the position of the lever and avoid the lever rebounding during leak detection testing, which would cause the test to need to be repeated. This solves the problem that the existing quick-connect insulation leak detection connector does not have a quick locking structure for the lever. When the airtightness test is performed after connecting the pipeline, the lever is prone to rebound and reset, causing the connector to lose its positioning on the pipeline and the test to need to be repeated. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the quick-connect insulation leak detection according to this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the connecting rod structure of the quick-connector for insulation leak detection according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the quick-connect lever for insulation leak detection of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the rubber pad of the quick-connect insulated leak detection device of this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Mounting base; 2. Lever; 3. Connecting base; 41. Fixing screw; 42. Washer; 5. Connecting rod; 6. Insert rod; 7. Limiting block; 8. Press-type buckle; 9. Rotating shaft; 10. Positioning nut; 11. Connecting strip; 12. Handle; 13. Protective sleeve; 14. Guide rod; 15. Slide; 16. External thread; 17. Rubber pad. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4 This utility model provides an embodiment of an insulation leak detection quick connector, including a mounting base 1; it also includes a locking assembly, a connecting rod 5, a plug rod 6, a limiting block 7, and a press-type buckle 8. A lever 2 is provided on the outer side of the mounting base 1, and a connecting base 3 is mounted on the top surface of the mounting base 1. Locking assemblies are provided on both the front and rear surfaces of the connecting base 3. One end of the connecting rod 5 is provided on the outer side of the locking assembly, and the other end of the connecting rod 5 is in contact with the lever 2. A plug rod 6 is provided through the two connecting rods 5 and the lever 2. A limiting block 7 is installed at the front end, and a press-type buckle 8 is provided at the rear end of the insertion rod 6. By setting a locking component, the connecting rod 5 can be installed and fixed. After moving the lever 2, the insertion rod 6 can be inserted from the front connecting rod 5 and pass through the lever 2 and the rear connecting rod 5 until the limiting block 7 is in contact with the outer surface of the front connecting rod 5. Then, the press-type buckle 8 is locked at the rear end of the insertion rod 6, which can quickly fix the position of the lever 2 and avoid the lever 2 from springing back during the leak test, which would cause the test to need to be repeated.

[0023] Please see Figures 1-4 In this embodiment, the locking assembly includes a fixing screw 41 and a washer 42. The front and rear surfaces of the connecting seat 3 are threaded with fixing screws 41, which pass through the corresponding connecting rod 5. A washer 42 is fitted onto the outer surface of the fixing screw 41 near the connecting seat 3. By setting the fixing screw 41 and the washer 42, when installing the connecting rod 5, first place the washer 42 in the hole position of the connecting seat 3, then align the hole on one side of the connecting rod 5 with the washer 42, and then tighten the fixing screw 41 to complete the installation and positioning of the connecting rod 5. A rotating shaft 9 is rotatably connected to the front and rear surfaces of the mounting base 1. The rotating shaft 9 passes through the lever 2. The front and rear surfaces of the outer surface of the rotating shaft 9 are threaded with positioning nuts 10. By setting the rotating shaft 9, the rotating connection between the lever 2 and the connecting base 3 can be realized. The positioning nuts 10 can limit the two sides of the lever 2 to prevent it from falling off. A connecting strip 11 is set at the end of the lever 2 away from the mounting base 1. The lever 2 is connected to a handle 12 through the connecting strip 11. By setting the handle 12, the overall lever arm of the lever 2 can be increased, so that the operator can turn the lever 2 more effortlessly.

[0024] Please see Figures 1-4 In this embodiment, a protective sleeve 13 is fitted on the outer surface of the handle 12. The protective sleeve 13 is bonded to the handle 12 with strong adhesive. By setting the protective sleeve 13, the friction between the handle and the worker's hand can be increased, preventing slippage. A guide rod 14 is installed on the bottom surface of the mounting base 1. A slide block 15 is slidably connected to the outer surface of the guide rod 14. By setting the guide rod 14, the sliding direction of the slide block 15 can be restricted. Thus, when the lever 2 is turned, the tip on the left side of the lever 2 can squeeze the slide block 15, causing the slide block 15 to move on the outer surface of the guide rod 14. An external thread 16 is opened at the lower position of the outer surface of the guide rod 14. A rubber pad 17 is connected to the outer surface of the guide rod 14 through the external thread 16. By setting the external thread 16, the rubber pad 17 can be installed and adjusted. When the slide block 15 squeezes the rubber pad 17, the rubber pad 17 can be deformed to achieve quick docking with the pipeline.

[0025] During operation, by setting the fixing screw 41 and the washer 42, when installing the connecting rod 5, first place the washer 42 in the hole position of the connecting seat 3, then align the hole on one side of the connecting rod 5 with the washer 42, and then tighten the fixing screw 41 to complete the installation and positioning of the connecting rod 5. By setting the rotating shaft 9, the rotational connection between the lever 2 and the connecting seat 3 can be realized. The positioning nut 10 can limit the two sides of the lever 2 to prevent it from falling off. By setting the handle 12, the overall lever arm of the lever 2 can be increased, allowing the operator to operate it more easily. The lever 2, with its protective sleeve 13, increases friction with the operator's hand, preventing slippage. The guide rod 14 restricts the sliding direction of the slide 15, allowing the tip on the left side of the lever 2 to press against the slide 15 when the lever 2 is moved, causing the slide 15 to move on the outer surface of the guide rod 14. The external thread 16 facilitates the installation and adjustment of the rubber pad 17. When the slide 15 presses against the rubber pad 17, the rubber pad 17 deforms outward, enabling quick connection with the pipeline.

[0026] Through the above steps, by setting the locking component, the connecting rod 5 can be installed and fixed. After moving the lever 2, the insert rod 6 can be inserted from the front connecting rod 5, passing through the lever 2 and the rear connecting rod 5, until the limiting block 7 is in contact with the outer surface of the front connecting rod 5. Then, the press-type buckle 8 is locked at the rear end of the insert rod 6, which can quickly fix the position of the lever 2 and prevent the lever 2 from springing back during the leak test, causing the test to need to be repeated. This solves the problem that the existing quick-connect insulation leak tester does not have a quick-locking structure for the lever handle. When the airtightness test is performed after connecting the pipeline, the lever handle is prone to springing back and resetting, causing the connector to lose its positioning on the pipeline, and the test needs to be repeated.

Claims

1. An insulation leak detection quick connector, comprising a mounting base (1); characterized in that: It also includes a locking assembly, a connecting rod (5), a plug rod (6), a limiting block (7), and a press-type buckle (8). A lever (2) is provided on the outside of the mounting base (1). A connecting seat (3) is installed on the top surface of the mounting base (1). Locking assemblies are provided on both the front and rear surfaces of the connecting seat (3). One end of the connecting rod (5) is provided on the outside of the locking assembly. The other end of the connecting rod (5) is in contact with the lever (2). A plug rod (6) is provided through the two connecting rods (5) and the lever (2). A limiting block (7) is installed at the front end of the plug rod (6). A press-type buckle (8) is provided at the rear end of the plug rod (6).

2. The quick-connector for insulation leak detection according to claim 1, characterized in that: The locking assembly includes a fixing screw (41) and a washer (42); the front and rear surfaces of the connecting seat (3) are threaded with fixing screws (41), the fixing screws (41) pass through the corresponding connecting rods (5), and the outer surface of the fixing screws (41) is fitted with a washer (42) near the connecting seat (3).

3. The quick-connector for insulation leak detection according to claim 1, characterized in that: The front and rear surfaces of the mounting base (1) are rotatably connected to a rotating shaft (9), which passes through a lever (2). The front and rear surfaces of the outer surface of the rotating shaft (9) are threaded with positioning nuts (10).

4. The quick-connector for insulation leak detection according to claim 1, characterized in that: A connecting strip (11) is provided at the end of the lever (2) away from the mounting base (1), and a handle (12) is connected to the lever (2) through the connecting strip (11).

5. The quick-connector for insulation leak detection according to claim 4, characterized in that: The outer surface of the grip (12) is covered with a protective sleeve (13), and the protective sleeve (13) is bonded to the grip (12) with strong adhesive.

6. The quick-connector for insulation leak detection according to claim 1, characterized in that: A guide rod (14) is mounted on the bottom surface of the mounting base (1), and a slide block (15) is slidably connected to the outer surface of the guide rod (14).

7. The quick-connector for insulation leak detection according to claim 6, characterized in that: The guide rod (14) has an external thread (16) at the lower part of its outer surface, and a rubber pad (17) is connected to the outer surface of the guide rod (14) through the external thread (16).