Device for detecting sealing performance of sealing plug
By designing a sealing plug detection device that combines a pressure regulating cylinder and laser detection, the problems of contamination and inconvenience in the detection of sealing plugs in the prior art are solved, and a simple detection method without dyes and water immersion is realized.
Patent Information
- Application Number
- CN202520388459.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing methods for testing sealed plugs require the use of dyes, which may cause contamination and are inconvenient to operate. They also require immersing the container in water, making the testing process cumbersome.
A device for testing the sealing performance of a sealing plug was designed. It uses a first and second pressure regulating cylinder in conjunction with a laser emitter and receiver to determine the leakage of the sealing plug by the change of high-pressure air, avoiding the use of dyeing agents and simplifying the operation.
It enables the detection of sealed plugs without the need for dyes, simplifies the operation process, avoids immersing containers in water, and improves the convenience and accuracy of the detection.
Smart Images
Figure CN223756229U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sealing performance detection, especially relates to a detection device for sealing performance of sealing plug. BACKGROUND
[0002] The sealing plug is an indispensable sealing element in various containers, pipelines and even mechanical equipment. In actual use, the sealing plug needs to bear various pressures from the inside or outside of the container to ensure that the medium does not leak. Therefore, it is particularly important to accurately and efficiently detect the sealing performance of the sealing plug.
[0003] Currently, pressure decay method and liquid leakage method are often used to detect the sealing performance of the sealing plug. The liquid leakage method needs to inject high-pressure liquid with a dyeing agent into the container, and whether the sealing plug is qualified is judged by observing whether the liquid leaks out of the sealing plug. However, the dyeing agent may contaminate the sealing plug, and the detection process is relatively complicated. The pressure decay method is to inject high-pressure air into the container, and then observe whether there is air bubble at the sealing plug by immersing the container in water to judge whether it is qualified. Although this method can detect small leaks, it needs to completely immerse the container in water, which is inconvenient to operate. SUMMARY
[0004] The utility model provides a detection device for sealing performance of sealing plug, which does not need to use dyeing agent when detecting the sealing plug, avoids contaminating the sealing plug, and the detection process is also simpler, and the container does not need to be immersed in water, which is more convenient to operate.
[0005] In a first aspect, the present disclosure provides a detection device for sealing performance of a sealing plug, which specifically comprises a base.
[0006] A first pressure regulating cylinder is fixedly arranged on the left top of the base, and a second pressure regulating cylinder is fixedly arranged on the right top of the base. A one-way valve is installed on the top of each of the first pressure regulating cylinder and the second pressure regulating cylinder. A sealing plug is installed on the left middle position of the first pressure regulating cylinder. A first piston plate is slidably installed inside the first pressure regulating cylinder. A second piston plate is slidably installed inside the second pressure regulating cylinder. A connecting rod is fixed between the first piston plate and the second piston plate. A laser emitter is installed at the front top of the base, and a laser receiver is installed at the rear top of the base.
[0007] In at least some embodiments, a circular hole is arranged on the rectangular plate at the bottom of the connecting rod, and the circular hole on the rectangular plate at the bottom of the connecting rod is at the same height as the light beam emitting point of the laser emitter and the receiving point of the laser receiver.
[0008] In at least some embodiments, the first pressure regulating cylinder and the second pressure regulating cylinder are both provided with a cylindrical cavity inside, the inner diameter of the cylindrical cavity is equal to the outer diameter of the first piston plate and the second piston plate, and the first piston plate and the second piston plate are both wrapped with rubber outside.
[0009] In at least some embodiments, when the first piston plate slides to the rightmost side, the first piston plate is tightly attached to the inner wall of the right side of the first pressure regulating cylinder, and the circular hole on the rectangular plate at the bottom of the connecting rod is in a straight line with the laser emitter and the laser receiver.
[0010] In at least some embodiments, the connecting rod is a hexagonal columnar rod, and the right middle position of the first pressure regulating cylinder and the left middle position of the second pressure regulating cylinder are both provided with a corresponding hexagonal hole.
[0011] In at least some embodiments, the right top of the first pressure regulating cylinder and the left top of the second pressure regulating cylinder are both provided with a circular hole penetrating inside and outside, and the inner walls of the first pressure regulating cylinder and the second pressure regulating cylinder are both smeared with lubricating oil.
[0012] In at least some embodiments, the bottom of the connecting rod is firmly provided with a rectangular plate, and the distance between the bottom surface of the rectangular plate and the top surface of the base is 2mm.
[0013] The utility model provides a detection device of sealing performance of sealing plug has following beneficial effect:
[0014] In the utility model, high pressure air can be introduced into the first pressure regulating cylinder and the second pressure regulating cylinder, once the sealing plug leaks in the detection process, the air pressure in the first pressure regulating cylinder is reduced, then the position change of the rectangular plate at the bottom of the connecting rod can make the laser receiver send a light beam interruption signal, so that whether the sealing performance of the sealing plug is qualified can be easily judged, when the sealing plug is detected, the device does not need to use dyeing agent, avoids causing pollution to the sealing plug, the detection process is also simpler, and the container does not need to be immersed in water, operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.
[0016] The drawings in the following description only relate to some embodiments of the utility model, and are not limited to the utility model.
[0017] In the drawings:
[0018] Figure 1 The main shaft side schematic view of the overall structure of the application is shown;
[0019] Figure 2 The main shaft side schematic view of the connecting rod after moving left in the application is shown;
[0020] Figure 3 The main view schematic diagram of the present application is shown;
[0021] Figure 4 The main shaft side schematic diagram of the present application is shown after the pressure regulating cylinder is cut open;
[0022] Figure 5 The main shaft side schematic diagram of the present application is shown after the pressure regulating cylinder is cut open and the connecting rod is moved left;
[0023] Figure 6 The structure schematic diagram of the present application is shown after the connecting rod is cut open;
[0024] List of reference signs
[0025] 1, base; 2, No. 1 pressure regulating cylinder; 3, No. 2 pressure regulating cylinder; 4, one-way valve; 5, sealing plug; 6, No. 1 piston plate; 7, No. 2 piston plate; 8, connecting rod; 9, laser emitter; 10, laser receiver. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] Embodiment one: please refer to Figures 1 to 6 :
[0028] The utility model provides a kind of sealing plug sealing performance detection device, it include: base 1;
[0029] The left side of the top of the base 1 is fixedly provided with a first pressure regulating cylinder 2, the base 1 is used for supporting the upper structure of the device, the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 can detect the sealing performance of the sealing plug 5; the right side of the top of the base 1 is fixedly provided with a second pressure regulating cylinder 3, the second pressure regulating cylinder 3 and the first pressure regulating cylinder 2 can detect the sealing performance of the sealing plug 5; the top of the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 is installed with a check valve 4, the check valve 4 is used for introducing high-pressure air into the cavity inside the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3; the left side of the first pressure regulating cylinder 2 is installed with a sealing plug 5; the inside of the first pressure regulating cylinder 2 is slidably installed with a first piston plate 6, when the air pressure in the cavity inside the first pressure regulating cylinder 2 is increased to be slightly greater than the air pressure in the cavity inside the second pressure regulating cylinder 3, the first piston plate 6, the connecting rod 8 and the second piston plate 7 are slowly pushed to slide to the right; the inside of the second pressure regulating cylinder 3 is slidably installed with a second piston plate 7, if the sealing plug 5 is unqualified, the air in the cavity inside the first pressure regulating cylinder 2 will be lost to reduce the air pressure, at this time, the high air pressure in the cavity inside the second pressure regulating cylinder 3 will push the second piston plate 7, the connecting rod 8 and the first piston plate 6 to slide to the left; the first piston plate 6 and the second piston plate 7 are fixedly installed with a connecting rod 8, the connecting rod 8 is used for connecting the first piston plate 6 and the second piston plate 7 together; the top of the base 1 is installed with a laser emitter 9, the top of the base 1 is installed with a laser receiver 10, when detecting, the light beam emitted by the laser emitter 9 can pass through the circular hole on the rectangular plate at the bottom of the connecting rod 8 to irradiate on the receiving point of the laser receiver 10, when the laser receiver 10 can receive the signal, it is in a normal state, then it can be tested for a long time.
[0030] In the embodiments of the present disclosure, as shown in Figures 1-6 The bottom of the connecting rod 8 is provided with a front and rear through circular hole, and the circular hole on the rectangular plate at the bottom of the connecting rod 8 is at the same height with the light beam emitting point of the laser emitter 9 and the receiving point of the laser receiver 10, when testing, the light beam emitted by the laser emitter 9 can pass through the circular hole on the rectangular plate at the bottom of the connecting rod 8 to irradiate on the receiving point of the laser receiver 10, after the test time, if the sealing plug 5 is qualified, the air pressure in the cavity inside the first pressure regulating cylinder 2 will not change, the position of the first piston plate 6 and the connecting rod 8 will not move, therefore, the laser receiver 10 is still in a normal state, so as to judge that the sealing performance of the sealing plug 5 is qualified, if the sealing plug 5 is unqualified, the air in the cavity inside the first pressure regulating cylinder 2 will be lost to reduce the air pressure, at this time, the high air pressure in the cavity inside the second pressure regulating cylinder 3 will push the second piston plate 7, the connecting rod 8 and the first piston plate 6 to slide to the left, at this time, the light beam emitted by the laser emitter 9 can only irradiate on the rectangular plate at the bottom of the connecting rod 8, so as to judge that the sealing performance of the sealing plug 5 is unqualified.
[0031] In the embodiments of the present disclosure, as shown inFigure 4 and Figure 5 As shown in the figure, the inside of the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 are both provided with a cylindrical cavity, the inner diameter of the cylindrical cavity is equal to the outer diameter of the first piston plate 6 and the second piston plate 7, and the outside of the first piston plate 6 and the second piston plate 7 is wrapped by rubber, so when the air pressure in the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 changes, the first piston plate 6 and the second piston plate 7 can be pushed to slide left and right in the cavity inside, so as to determine whether the sealing performance is qualified through the change of position.
[0032] In the embodiment of the present disclosure, as shown in the figure, Figure 4 When the first piston plate 6 slides to the rightmost side, it will be in close contact with the right inner wall of the first pressure regulating cylinder 2, and the circular hole on the bottom rectangular plate of the connecting rod 8 will be in the same straight line with the laser emitter 9 and the laser receiver 10. During the test, the light beam emitted by the laser emitter 9 can pass through the circular hole on the bottom rectangular plate of the connecting rod 8 and irradiate on the receiving point of the laser receiver 10. After the test time, if the sealing plug 5 is qualified, the air pressure in the cavity inside the first pressure regulating cylinder 2 will not change, and the position of the first piston plate 6 and the connecting rod 8 will not move, so the laser receiver 10 will still be in the normal state, so as to determine that the sealing performance of the sealing plug 5 is qualified.
[0033] In the embodiment of the present disclosure, as shown in the figure, Figures 1-5 The connecting rod 8 is a hexagonal column, and the right middle position of the first pressure regulating cylinder 2 and the left middle position of the second pressure regulating cylinder 3 are both provided with a corresponding hexagonal hole, so that during the detection process, the connecting rod 8 can only slide left and right and cannot rotate, so as to ensure that the bottom rectangular plate of the connecting rod 8 is in a vertical state.
[0034] In the embodiment of the present disclosure, as shown in the figure, Figures 1-5 The bottom of the connecting rod 8 is firmly provided with a rectangular plate, and the distance between the bottom surface of the rectangular plate and the top surface of the base 1 is 2mm. If the sealing plug 5 is unqualified, the light beam emitted by the laser emitter 9 can only irradiate on the rectangular plate at the bottom of the connecting rod 8, so as to determine that the sealing performance of the sealing plug 5 is unqualified, and the bottom surface of the rectangular plate will not rub with the base 1 when the connecting rod 8 slides left and right.
[0035] In the embodiment of the present disclosure, as shown in the figure, Figures 1-6 The right top of the first pressure regulating cylinder 2 and the left top of the second pressure regulating cylinder 3 are both provided with a circular hole penetrating inside and outside, and the inner wall of the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 is also smeared with lubricating oil, so that when the first piston plate 6 and the second piston plate 7 slide left and right, the air in the cavity on the other side can be discharged outward through the circular hole at the right top of the first pressure regulating cylinder 2 and the left top of the second pressure regulating cylinder 3, so as to reduce the sliding resistance, and the lubricating oil on the inner wall of the first pressure regulating cylinder 2 and the second pressure regulating cylinder 3 can further reduce the sliding resistance.
[0036] The working principle of the embodiment is as follows: when it is needed to detect the sealing performance of the sealing plug by using the device, the base 1 is first supported on a desktop, then the sealing plug 5 is firmly installed at the left middle position of the first pressure regulating cylinder 2, the one-way valve 4 at the top of the second pressure regulating cylinder 3 is connected with an external air pump and high-pressure air is introduced, at this time, the air pressure in the internal cavity of the second pressure regulating cylinder 3 is increased, so that the second piston plate 7 can push the connecting rod 8 and the first piston plate 6 to slide to the leftmost side, then the one-way valve 4 at the top of the first pressure regulating cylinder 2 is connected with the external air pump and high-pressure air is introduced, when the air pressure in the internal cavity of the first pressure regulating cylinder 2 is increased to be slightly greater than that in the internal cavity of the second pressure regulating cylinder 3, the first piston plate 6 and the connecting rod 8 and the second piston plate 7 are slowly pushed to slide to the right, when the first piston plate 6 cannot slide to the right, the introduction of high-pressure air is stopped, at this time, the light beam emitted by the laser emitter 9 can pass through the circular hole on the rectangular plate at the bottom of the connecting rod 8 and irradiate on the receiving point of the laser receiver 10, when the laser receiver 10 can receive the signal, it is in a normal state, then the test can be carried out for a long time, if the sealing plug 5 is qualified after the test time, the air pressure in the internal cavity of the first pressure regulating cylinder 2 will not change, and the position of the first piston plate 6 and the connecting rod 8 will not move, so that the laser receiver 10 is still in the normal state, so that it is judged that the sealing performance of the sealing plug 5 is qualified, and if the sealing plug 5 is unqualified, the air in the internal cavity of the first pressure regulating cylinder 2 will be lost to reduce the air pressure, at this time, the high air pressure in the internal cavity of the second pressure regulating cylinder 3 will push the second piston plate 7 and the connecting rod 8 and the first piston plate 6 to slide to the left, at this time, the light beam emitted by the laser emitter 9 can only irradiate on the rectangular plate at the bottom of the connecting rod 8, so that it is judged that the sealing performance of the sealing plug 5 is unqualified.
[0037] In this article, the following points need attention:
[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.
[0039] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.
[0040] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.
Claims
1. A device for detecting the sealing performance of a sealing plug, comprising: Base (1); characterized in that: The left side of the top of the base (1) is firmly provided with a first pressure regulating cylinder (2); the right side of the top of the base (1) is firmly provided with a second pressure regulating cylinder (3); the top of the first pressure regulating cylinder (2) and the top of the second pressure regulating cylinder (3) are both provided with a check valve (4); the left side of the first pressure regulating cylinder (2) is provided with a sealing plug (5) at the middle position; the inside of the first pressure regulating cylinder (2) is slidably provided with a first piston plate (6); the inside of the second pressure regulating cylinder (3) is slidably provided with a second piston plate (7); a connecting rod (8) is fixed between the first piston plate (6) and the second piston plate (7); a laser emitter (9) is installed at the front top of the base (1), and a laser receiver (10) is installed at the rear top of the base (1).
2. The sealing plug sealing performance detection device according to claim 1, wherein, The inside of the first pressure regulating cylinder (2) and the inside of the second pressure regulating cylinder (3) are both provided with a cylindrical cavity, the inner diameter of the cylindrical cavity is equal to the outer diameter of the first piston plate (6) and the second piston plate (7), and the outside of the first piston plate (6) and the second piston plate (7) is wrapped with rubber.
3. The sealing plug sealing performance detection device according to claim 1, wherein, The connecting rod (8) is a hexagonal column, and the right side of the first pressure regulating cylinder (2) and the left side of the second pressure regulating cylinder (3) are both provided with a corresponding hexagonal hole.
4. The sealing plug sealing performance detection device according to claim 1, wherein, The bottom of the connecting rod (8) is firmly provided with a rectangular plate, and the distance between the bottom surface of the rectangular plate and the top surface of the base (1) is 2mm.
5. The sealing plug sealing performance detection device according to claim 1, wherein, The bottom of the connecting rod (8) is firmly provided with a rectangular plate, and the distance between the bottom surface of the rectangular plate and the top surface of the base (1) is 2mm.
6. The sealing plug sealing performance detection device according to claim 1, wherein, When the first piston plate (6) slides to the rightmost side, it will be in close contact with the right inner wall of the first pressure regulating cylinder (2), and the circular hole on the bottom of the connecting rod (8) will be on the same straight line with the laser emitter (9) and the laser receiver (10).
7. The sealing plug sealing performance detection device according to claim 1, wherein, The right side of the top of the first pressure regulating cylinder (2) and the left side of the top of the second pressure regulating cylinder (3) are both provided with a circular hole that penetrates from the inside to the outside, and the inner walls of the first pressure regulating cylinder (2) and the second pressure regulating cylinder (3) are also coated with lubricating oil.