Sealing leak detection tester for sealing ring manufacturing
By improving the structural design of the sealing leak detection tester, single-handed operation and safety protection have been achieved, solving the problems of operational difficulty and misoperation in the existing technology, and improving detection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU CHUANGSU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-12
AI Technical Summary
Existing airtight leak detectors require manual pressing of two start buttons when testing sealing rings, which increases the difficulty of operation and the possibility of misoperation, especially for novice or inexperienced operators, thus affecting testing efficiency.
A sealing leak detection tester was designed. Through the cooperation of the chassis, spring, connecting plate, limit rod, pressing cover and pressure rod, it can realize one-handed operation to press the buttons on both sides at the same time, reducing the difficulty of operation and reducing the number of misoperations. At the same time, the cooperation of side plate, side block, front baffle, rectangular groove, rubber protrusion and bolt prevents high-pressure gas from spraying and causing injury.
It enables convenient one-handed operation, reduces the difficulty of operation and the risk of misoperation, improves detection efficiency, and protects the safety of operators.
Smart Images

Figure CN224231205U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sealing ring manufacturing technology, specifically relating to a sealing leak detection tester for sealing ring manufacturing. Background Technology
[0002] In the complex systems of modern industrial production, sealing rings are key components that ensure the airtightness of equipment, and their quality directly affects production safety and product performance in numerous industries. From aircraft sealing systems in the aerospace field to engine and fuel system seals in automobile manufacturing, and the stringent requirements for packaging seals in the food and pharmaceutical industries, sealing rings play an indispensable role.
[0003] In the manufacturing process of sealing rings, leak detection testers are of great significance and play a crucial role. They can quickly and accurately detect even minute leaks in the sealing rings, promptly identifying quality defects during processing, preventing defective products from entering subsequent stages, and effectively reducing the scrap rate. By quantifying leakage data, they provide a reliable basis for process optimization, helping to improve processing accuracy and production efficiency. Simultaneously, they ensure that the sealing rings leaving the factory possess stable and reliable sealing performance, building a solid quality defense line for industries with extremely high sealing requirements, such as aerospace, automotive manufacturing, and food and pharmaceutical industries, ensuring the safe and stable operation of equipment and product quality safety.
[0004] Existing leak detectors require manual pressing of two start buttons simultaneously to activate the equipment when testing sealing rings. However, for novice or inexperienced operators, coordinating both hands to press the two buttons separately increases the difficulty of operation and the possibility of misoperation, thus affecting the efficiency of the testing work. Utility Model Content
[0005] The purpose of this invention is to provide a sealing leak detection tester for manufacturing sealing rings, which aims to solve the problem that existing airtight leak detectors require manual pressing of two start buttons simultaneously to start the equipment for testing when testing sealing rings. However, in batch testing and frequent operation of the equipment, novice or inexperienced operators need to coordinate both hands to press the two buttons separately, which increases the difficulty of operation and the possibility of misoperation, thus affecting the efficiency of the testing work.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing leak detection tester for manufacturing sealing rings, comprising a tester body, control buttons mounted on the front surface of the tester body, a test platform mounted on the upper surface of the tester body, a chassis connected to both sides of the control buttons on the surface of the tester body, a spring connected to the other side of the chassis, a connecting plate connected to the surface of the spring, a limiting rod movably inserted into the surface of the connecting plate, the other side of the limiting rod connected to the surface of the chassis, a pressing cover connected to the surface of the connecting plate, a pressing rod connected to the surface of the pressing cover, side plates connected to both sides of the test platform on the surface of the tester body, side blocks connected to the upper surface of the side plates, and the side blocks slidably connected to rectangular grooves opened on both sides of the front baffle, with rubber protrusions bonded to the lower end of the rectangular grooves where they intersect with the front baffle.
[0007] As a preferred embodiment of the sealing leak detection tester for manufacturing sealing rings according to this utility model, the chassis, spring and connecting plate form an elastic connection structure.
[0008] As a preferred embodiment of the sealing leak detection tester for manufacturing sealing rings according to this utility model, the pressure rod has an inverted "U" shaped structure, with a pressing cover connected to each of its two sides. A circular groove is opened on one side of the pressing cover, and the shape and size of the groove are adapted to the control button.
[0009] In a preferred embodiment of the sealing and leak detection tester for manufacturing sealing rings according to this utility model, the surface of the rubber protrusion is movably engaged with the grooves on both sides of the side block, the surface of the side block abuts against the rectangular plate, and the surface of the rectangular plate is connected to the side block by bolt threads.
[0010] As a preferred embodiment of the sealing leak detection tester for manufacturing sealing rings according to this utility model, the side blocks are respectively provided with circular grooves, and the shape and size of the grooves are adapted to the rubber protrusions.
[0011] As a preferred embodiment of the sealing leak detection tester for manufacturing sealing rings according to this utility model, the front baffle is a U-shaped integrated structure, and the front end of the front baffle is provided with a rectangular transparent glass window.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] Through the cooperation between the chassis, spring, connecting plate, limit rod, pressing cover and pressure rod, when the equipment is started for testing, pressing the pressure rod can drive the two connected pressing covers to operate the control buttons. This makes it convenient to press the start buttons on both sides at the same time when operating with one hand. This eliminates the need for novice or inexperienced operators to coordinate both hands to press two buttons separately, reducing the difficulty of operation, reducing the possibility of misoperation, and thus improving the efficiency of testing work.
[0014] Meanwhile, the cooperation between the side plates, side blocks, front baffle, rectangular groove, rubber protrusion, rectangular plate and bolts shields the testing platform during testing, preventing high-pressure gas generated by defective sealing rings from being directly sprayed and injuring people, thus reducing the risk of injury to operators. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a side view of the structure of this utility model;
[0018] Figure 3 This is a cross-sectional exploded view of the front baffle section of this utility model;
[0019] Figure 4 This is an exploded magnified structural diagram of the press cover and spring portion of this utility model;
[0020] Figure 5 This is an exploded structural diagram of the front baffle and side plate of this utility model.
[0021] In the diagram: 1. Tester body; 2. Control button; 3. Test platform; 4. Chassis; 5. Spring; 6. Connecting plate; 7. Limiting rod; 8. Press cover; 9. Pressure rod; 10. Side plate; 11. Side block; 12. Front baffle; 13. Rectangular groove; 14. Rubber protrusion; 15. Rectangular plate; 16. Bolt. 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 1-5This utility model provides the following technical solution: a sealing leak detection tester for manufacturing sealing rings, comprising a tester body 1, a control button 2 mounted on the front surface of the tester body 1, a test platform 3 mounted on the upper surface of the tester body 1, a base 4 connected to the control button 2 on both sides of the surface of the tester body 1, a spring 5 connected to the other side of the base 4, a connecting plate 6 connected to the surface of the spring 5, a limiting rod 7 movably inserted into the surface of the connecting plate 6, the other side of the limiting rod 7 connected to the surface of the base 4, a pressing cover 8 connected to the surface of the connecting plate 6, and a pressing rod 9 connected to the surface of the pressing cover 8. 1. The surface of the test platform 3 is connected to the side plate 10 on both sides. The upper surface of the side plate 10 is connected to the side block 11. The surface of the side block 11 is slidably connected to the rectangular groove 13 opened on both sides of the front baffle 12. The lower end of the rectangular groove 13 intersects with the front baffle 12 and the surface is bonded with a rubber protrusion 14. In this design, the tester body 1, the control button 2 and the test platform 3 constitute the main body of the air tightness tester. A large number of related components are set in the main body of the air tightness tester. Since they are existing technologies and the core content of this technical solution is not related to them, they will not be described in detail in this technical solution.
[0024] The main model of the airtightness tester in this solution is: JC-LZ10020.
[0025] In use: The airtightness tester employs the pressure decay method (pressure drop method). First, a pressure source, such as compressed air, is used to fill the workpiece under test on the testing platform 3, which contains the sealing ring, with a certain pressure of gas. Once the set pressure is reached, the gas source is shut off. If there is a leak in the sealing ring, the gas will escape, causing a pressure drop. The instrument monitors the pressure change inside the workpiece over a period of time. If the pressure drops beyond a set threshold within a specified time, the sealing ring is deemed unqualified for airtightness; otherwise, it is qualified. By detecting the pressure drop, leakage can be determined, and the leakage amount can be calculated from the pressure drop.
[0026] Preferably, the chassis 4, spring 5, and connecting plate 6 form an elastic connection structure.
[0027] In actual use, after pressing, releasing the lever 9 will cause the lever 9 to return to its original position through the rebound of the spring 5 connecting the connecting plate 6 and the chassis 4, thus disengaging the pressed control button 2.
[0028] Preferably, the pressure rod 9 has an inverted "U" shaped structure, with a pressing cover 8 connected to each of its two sides. A circular groove is opened on one side of the pressing cover 8, and the shape and size of the groove are adapted to the control button 2.
[0029] In actual use, hold the lever 9 and press it down. When the lever 9 is pressed down, the pressing cover 8 connected to both sides also slides down on the limit rod 7, so as to maintain parallel movement with the control button 2 until the pressing cover 8 presses the control button 2 on both sides at the same time, so that the opening button on both sides of the control button 2 can be pressed synchronously with one hand.
[0030] Preferably, the surface of the rubber protrusion 14 is movably engaged with the grooves on both sides of the side block 11, the surface of the side block 11 abuts against the rectangular plate 15, and the surface of the rectangular plate 15 is threadedly connected to the side block 11 by bolts 16.
[0031] In actual use, the handle at the front end of the front baffle 12 causes the rectangular slots 13 on both sides to be raised vertically under the restriction of the side block 11 and the rectangular plate 15, until the two sets of rubber protrusions 14 attached to the front baffle 12 are engaged in the grooves on both sides of the side block 11, thereby temporarily fixing the position of the raised front baffle 12.
[0032] Preferably, circular grooves are formed on both sides of the side block 11, and the shape and size of the grooves are adapted to the rubber protrusion 14.
[0033] In practical use, the grooves on both sides of the side block 11 are engaged with the rubber protrusion 14 to fix the position of the raised front baffle 12 on the side block 11.
[0034] Preferably, the front baffle 12 has a U-shaped integrated structure, and the front end of the front baffle 12 is provided with a rectangular transparent glass window.
[0035] In practical use, the rectangular transparent glass at the front end of the front baffle 12 allows the user to observe the testing situation on the testing platform 3. It can also protect and intercept the area where the high-pressure gas generated when a sealing ring with quality problems is detected is sprayed onto the front end of the tester body 1 and the operator standing there.
[0036] Working principle: During the manufacturing of the sealing ring, first grasp the handle at the front end of the front baffle 12 so that the rectangular grooves 13 on both sides are vertically raised under the constraint of the side blocks 11 and the rectangular plate 15, until the two sets of rubber protrusions 14 bonded to the front baffle 12 are engaged in the grooves on both sides of the side blocks 11, thereby temporarily fixing the position of the raised front baffle 12, thus exposing the test fixture installed on the surface of the test table 3. Then, place the sealing ring that needs to be tested for leak sealing in the test fixture provided on the test table 3, and repeat the above operation. Pull down the front baffle 12 engaged on the side blocks 11 so that it moves downward from the engaged side blocks 11 until the bottom of the front baffle 12 abuts against the base on the surface of the tester body 1. Then, grasp the pressure rod 9 and press it down. When the pressure rod 9 is pressed down, the pressing covers 8 connected to its two sides also slide down on the limit rod 7, thereby maintaining parallel movement with the control button 2. The device is activated by pressing the control buttons 2 on both sides of the cover 8, which in turn activates the tester body 1 to perform a sealing test on the sealing ring placed in the test fixture on the test platform 3. After pressing, the pressure rod 9 is released, and the spring 5 connecting the connecting plate 6 and the chassis 4 returns the pressure rod 9 to its original position, thus disengaging from the pressed control button 2. If the sealing ring is defective during the test, causing high-pressure gas to be ejected, it will be blocked by the front baffle 12 to prevent the high-pressure gas from directly contacting the operator and causing damage. After long-term use, the bolt 16 threaded between the rectangular plate 15 and the side block 11 can be unscrewed to replace the aging front baffle 12. At the same time, the rectangular transparent glass at the front end of the front baffle 12 allows the user to observe the test situation on the test platform 3 during the test, so as to deal with any sudden problems caused by the sealing ring during the test in a timely manner.
[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A leak detection tester for manufacturing sealing rings, comprising a tester body (1), characterized in that: The front surface of the tester body (1) is equipped with control buttons (2), the upper surface of the tester body (1) is equipped with a test platform (3), the surface of the tester body (1) is connected to the chassis (4) on both sides of the control buttons (2), the other side of the chassis (4) is connected to a spring (5), the surface of the spring (5) is connected to a connecting plate (6), the surface of the connecting plate (6) is movably connected to a limiting rod (7), the other side of the limiting rod (7) is connected to the surface of the chassis (4), the surface of the connecting plate (6) is connected to a pressing cover (8), the surface of the pressing cover (8) is connected to a pressure rod (9), the surface of the tester body (1) is connected to side plates (10) on both sides of the test platform (3), the upper surface of the side plate (10) is connected to a side block (11), the surface of the side block (11) is slidably connected to the rectangular grooves (13) opened on both sides of the front baffle (12), and the lower end of the rectangular groove (13) intersects with the front baffle (12) with a rubber protrusion (14).
2. The sealing leak detection tester for manufacturing sealing rings according to claim 1, characterized in that: The chassis (4), spring (5) and connecting plate (6) form an elastic connection structure.
3. The sealing leak detection tester for manufacturing sealing rings according to claim 1, characterized in that: The pressure rod (9) has an inverted "U" shaped structure, with a pressing cover (8) connected to each side. A circular groove is opened on one side of the pressing cover (8), and the shape and size of the groove are adapted to the control button (2).
4. A leak detection tester for manufacturing sealing rings according to claim 1, characterized in that: The surface of the rubber protrusion (14) is movably engaged with the grooves on both sides of the side block (11), the surface of the side block (11) abuts against the rectangular plate (15), and the surface of the rectangular plate (15) is threadedly connected to the side block (11) by bolts (16).
5. A leak detection tester for manufacturing sealing rings according to claim 4, characterized in that: The side block (11) has circular grooves on both sides, and the shape and size of the grooves are adapted to the rubber protrusion (14).
6. A leak detection tester for manufacturing sealing rings according to claim 1, characterized in that: The front baffle (12) has a U-shaped integrated structure, and the front end of the front baffle (12) is provided with a rectangular transparent glass window.