Sealing performance testing device for rubber sealing ring

Abstract

The utility model relates to a rubber sealing ring sealing performance testing device which comprises a detection cylinder, a detection channel is formed in the detection cylinder, the detection channel vertically penetrates through the bottom of the detection cylinder, a plurality of first air outlet holes are formed in the top of the detection cylinder, and the first air outlet holes all penetrate through the detection cylinder and are communicated with the detection channel. A detection rod is inserted into the detection cylinder, the detection rod is vertically located in the detection channel, the detection rod does piston movement in the detection channel, an air inlet channel is formed in the detection rod, the air inlet channel vertically penetrates through the bottom of the detection rod and is connected with an external air supply device pipeline, and a plurality of second air outlet holes are formed in the top of the detection rod. The second air outlet holes penetrate through the detection rod and are communicated with the air inlet channel, a rubber sealing ring is transversely arranged at the top of the detection rod, the rubber sealing ring and the detection rod synchronously move, and air sensors are arranged in the first air outlet holes and are electrically connected with an external controller.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and more specifically, to a rubber sealing ring sealing test device. Background Art

[0002] Rubber sealing rings are very common in our lives. They can be used for dustproof and waterproof sealing of various products. They are important sealing components in machinery and equipment. There are many kinds of processing techniques for rubber sealing rings. The mechanical equipment used in each process and the sealing rings produced are different. However, no matter what process is used to produce the rubber sealing rings, they need to undergo a series of quality inspections, mainly including appearance inspection, size measurement and hardness testing of the rubber sealing rings. Some manufacturers also need to conduct additional sealing performance tests on the rubber sealing rings on the basis of the above tests, mainly to detect whether the end face of the rubber sealing ring is damaged during processing. Rubber sealing rings with damaged end faces will affect the normal use of the rubber sealing rings, but there are few equipment on the market specifically for testing the sealing performance of rubber sealing rings, which is very inconvenient. Utility Model Content

[0003] In response to the deficiencies of the above-mentioned prior art, the purpose of the present application is to provide a rubber sealing ring sealing testing device, comprising a detection cylinder, a detection channel formed inside the detection cylinder, and the detection channel vertically passes through the bottom of the detection cylinder, a plurality of first air outlets are formed on the top of the detection cylinder, and the first air outlets all pass through the detection cylinder and are connected to the detection channel, a detection rod is inserted inside the detection cylinder, and the detection rod is vertically located in the detection channel, and the detection rod performs piston movement inside the detection channel, an air intake channel is formed inside the detection rod, and the air intake channel vertically passes through the bottom of the detection rod and is connected to the external air supply device pipeline, a plurality of second air outlets are formed on the top of the detection rod, and the second air outlets all pass through the detection rod and are connected to the air intake channel, a rubber sealing ring is placed horizontally on the top of the detection rod, and the rubber sealing ring covers the second air outlet, and the rubber sealing ring moves synchronously with the detection rod, a gas sensor is provided in each of the first air outlets, and the gas sensors are electrically connected to an external controller.

[0004] Preferably, a limiting column for limiting the position of the rubber sealing ring is vertically formed at the top end of the inner portion of the detection cylinder, and the limiting column is located in the detection channel and between the first air outlets.

[0005] Preferably, a placement groove for placing a rubber sealing ring is formed on the top of the detection rod, and the placement groove is connected to the second air outlet, and the placement groove is connected to the air inlet channel through the second air outlet.

[0006] Preferably, a sealing member is provided around the detection rod and the detection cylinder, and the sealing member moves synchronously with the detection rod. The sealing member is located outside the detection rod, and the outside of the sealing member abuts against the inner wall of the detection cylinder.

[0007] Preferably, the first air outlet holes are arranged around the detection cylinder itself, and the first air outlet holes are not connected to each other; the second air outlet holes are arranged around the detection rod itself, and the second air outlet holes are not connected to each other.

[0008] In summary, this application has the following beneficial effects:

[0009] The staff moves the detection rod together with the limited rubber sealing ring synchronously toward the detection cylinder and inserts it into the detection cylinder. After one end of the detection rod and the limited rubber sealing ring are in the detection channel, the external air supply device inputs gas into the detection rod. The gas flows through the air inlet channel and is discharged through the second air outlet and enters the detection channel. At the same time as the gas enters the detection channel, it also drives the rubber sealing ring to be detected placed on the top of the detection rod to contact the top of the detection cylinder. At this time, the rubber sealing ring to be detected and the detection rod are in a separated state and the top of the rubber sealing ring to be detected completely covers the bottom of the first air outlet. At this time, the external air supply device continues to input gas into the detection rod, and the gas sensor in the first air outlet is fully It is in the open state and monitors the airflow through the first air outlet in real time. If the gas sensor detects that there is gas flowing out of the detection channel through the first air outlet, it means that the end face of the rubber sealing ring being tested is damaged and it is a defective product; if the gas sensor does not detect that there is gas flowing out of the detection channel through the first air outlet, it means that the end face of the rubber sealing ring being tested is not damaged and it is a good product. The external air supply device, the detection tube, the detection rod and the gas sensor cooperate with each other to realize the detection of the sealing performance of the rubber sealing ring, which effectively solves the very inconvenient technical problem that there are few equipment on the market specifically for testing the sealing performance of rubber sealing rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of a rubber sealing ring sealing test device;

[0011] Figure 2 It is a schematic diagram of the explosion structure of a rubber sealing ring sealing test device;

[0012] Figure 3 It is a structural diagram of the detection rod;

[0013] Figure 4 This is another structural schematic diagram of a rubber sealing ring sealing test device;

[0014] Figure 5The present invention is another structural schematic diagram of a rubber sealing ring sealing test device.

[0015] Figure numerals: 1. Detection cylinder; 2. Detection channel; 3. First air outlet; 4. Detection rod; 5. Air inlet channel; 6. Second air outlet; 7. Rubber sealing ring; 8. Gas sensor; 9. Limiting column; 10. Placement groove; 11. Sealing member. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0017] It should be noted that when a component is referred to as being “fixed to” or “disposed on” another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being “connected to” another component, it can be directly or indirectly connected to the other component.

[0018] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0020] A rubber sealing ring sealing test device, see Figures 1 to 5, including a detection cylinder 1, a detection channel 2 is formed inside the detection cylinder 1, and the detection channel 2 vertically passes through the bottom of the detection cylinder 1, a plurality of first air outlets 3 are formed on the top of the detection cylinder 1, and the first air outlets 3 all pass through the detection cylinder 1 and are connected to the detection channel 2, a detection rod 4 is inserted into the detection cylinder 1, and the detection rod 4 is vertically located in the detection channel 2, and the detection rod 4 performs piston movement inside the detection channel 2, an air intake channel 5 is formed inside the detection rod 4, and the air intake channel 5 vertically passes through the bottom of the detection rod 4 and is connected to the external air supply device pipeline, a plurality of second air outlets 6 are formed on the top of the detection rod 4, and the second air outlets 6 all pass through the detection rod 4 and are connected to the air intake channel 5, the top of the detection rod 4 is horizontally A rubber sealing ring 7 is placed, and the rubber sealing ring 7 covers the second air outlet 6, and the rubber sealing ring 7 moves synchronously with the detection rod 4. A gas sensor 8 is provided in the first air outlet 3, and the gas sensor 8 is electrically connected to the external controller. In this embodiment, the staff starts the external air supply device after placing the rubber sealing ring 7 to be detected on the top of the detection rod 4, and the external air supply device begins to pump air from one end of the detection rod 4 to the inside thereof. At this time, the inside of the detection rod 4 is in a negative pressure state because the pipeline at one end of the detection rod 4 is connected to the external air supply device and the other end is abutted by the rubber sealing ring 7 to be detected. The negative pressure will pass through the air inlet channel 5 and the second air outlet 6 to pump the rubber sealing ring to be detected placed on the top of the detection rod 4. The sealing ring 7 is adsorbed, thereby limiting the position of the rubber sealing ring 7 to be detected placed on the top of the detection rod 4, so that it will not be offset or fall off. After the rubber sealing ring 7 to be detected is limited, the staff will move the detection rod 4 together with the limited rubber sealing ring 7 synchronously toward the detection tube 1 and insert it into the detection tube 1. After one end of the detection rod 4 and the limited rubber sealing ring 7 are in the detection channel 2, the external air supply device switches the working state and inputs gas into the detection rod 4. The gas flows through the air inlet channel 5 and is discharged through the second air outlet 6 and enters the detection channel 2. At the same time as the gas enters the detection channel 2, it also drives the rubber sealing ring 7 to be detected placed on the top of the detection rod 4 and the top of the detection tube 1 Contact, at this time the rubber sealing ring 7 to be tested is in a separated state from the testing rod 4 and the top of the rubber sealing ring 7 to be tested completely covers the bottom of the first air outlet 3. At this time, the external air supply device continues to input gas into the testing rod 4, and the gas sensor 8 in the first air outlet 3 is in an open state throughout the process and monitors the airflow through the first air outlet in real time. If the gas sensor 8 detects that there is gas flowing out of the testing channel 2 in the first air outlet, it means that the end face of the rubber sealing ring 7 being tested is damaged and is a defective product; if the gas sensor 8 does not detect that there is gas flowing out of the testing channel 2 in the first air outlet, it means that the end face of the rubber sealing ring 7 being tested is not damaged and is a good product;

[0021] After the test is completed, the state of the external air supply device is switched again, so that the external air supply device evacuates the inside of the test rod 4 again. At this time, the inside of the test rod 4 is in a negative pressure state again, and the negative pressure adsorbs the rubber sealing ring 7 that is in contact with the top of the inner top of the test cylinder 1 through the air inlet channel 5 and the second air outlet hole 6, so that it is limited to the top of the test rod 4 again. Finally, the staff moves the test rod 4 together with the tested rubber sealing ring 7 away from the test cylinder 1 until the test rod 4 and the tested rubber sealing ring 7 are completely separated from the test cylinder 1. The external air supply device can be turned off and the tested rubber sealing ring 7 can be removed to complete the entire test step. If it is necessary to perform a sealing test on the next rubber sealing ring 7, it is only necessary to repeat the above steps. The external air supply device, the test cylinder 1, the test rod 4 and the gas sensor 8 cooperate with each other to realize the testing of the sealing performance of the rubber sealing ring 7, which effectively solves the inconvenience of the technical problem that there are few equipment specifically for testing the sealing performance of rubber sealing rings on the market.

[0022] A limiting column 9 for limiting the position of the rubber sealing ring 7 is vertically formed at the top end of the inner part of the detection cylinder 1, and the limiting column 9 is located in the detection channel 2, and the limiting column 9 is located between each first air outlet 3. In this embodiment, by providing the limiting column 9, the rubber sealing ring 7 can be sleeved on the outside of the limiting column 9, thereby limiting the movable range of the rubber sealing ring 7 located inside the detection cylinder 1, preventing the rubber sealing ring 7 inside the detection cylinder 1 from swinging significantly, thereby affecting the normal detection of the rubber sealing ring 7.

[0023] A placement groove 10 for placing the rubber sealing ring 7 is formed on the top of the detection rod 4, and the placement groove 10 is connected to the second air outlet 6, and the placement groove 10 is connected to the air inlet channel 5 through the second air outlet 6.

[0024] A sealing member 11 is arranged around the detection rod 4 and the detection tube 1, and the sealing member 11 moves synchronously with the detection rod 4. The sealing member 11 is located outside the detection rod 4, and the outside of the sealing member 11 abuts against the inner wall of the detection tube 1. In this embodiment, by arranging the sealing member 11 outside the detection rod 4, the sealing performance inside the detection channel 2 can be effectively improved, preventing the external gas supply device from inputting gas into the detection channel 2 inside the detection tube 1 through the detection rod 4. Leakage from the gap between the two, thereby affecting normal detection work.

[0025] The first air outlet holes 3 are arranged around the detection tube 1 and are not connected to each other. The second air outlet holes 6 are arranged around the detection rod 4 and are not connected to each other.

[0026] The above embodiments are merely explanations of the present application and are not limitations of the present application. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A rubber sealing ring sealing test device, characterized in that: It includes a detection cylinder, a detection channel is formed inside the detection cylinder, and the detection channel vertically passes through the bottom of the detection cylinder, a plurality of first air outlets are formed on the top of the detection cylinder, and the first air outlets all pass through the detection cylinder and are connected to the detection channel, a detection rod is inserted inside the detection cylinder, and the detection rod is vertically located in the detection channel, and the detection rod performs piston movement inside the detection channel, an air intake channel is formed inside the detection rod, and the air intake channel vertically passes through the bottom of the detection rod and is connected to the external air supply device pipeline, a plurality of second air outlets are formed on the top of the detection rod, and the second air outlets all pass through the detection rod and are connected to the air intake channel, a rubber sealing ring is placed horizontally on the top of the detection rod, and the rubber sealing ring covers the second air outlet, and the rubber sealing ring moves synchronously with the detection rod, a gas sensor is provided in each of the first air outlets, and the gas sensors are electrically connected to an external controller.

2. A rubber sealing ring sealing test device according to claim 1, characterized in that: A limiting column for limiting the position of the rubber sealing ring is vertically formed on the top of the inner portion of the detection cylinder, and the limiting column is located in the detection channel and between the first air outlet holes.

3. A rubber sealing ring sealing test device according to claim 1, characterized in that: A placement groove for placing a rubber sealing ring is formed on the top of the detection rod, and the placement groove is communicated with the second air outlet, and the placement groove is communicated with the air inlet channel through the second air outlet.

4. A rubber sealing ring sealing test device according to claim 1, characterized in that: A sealing member is arranged around the detection rod and the detection cylinder, and the sealing member moves synchronously with the detection rod. The sealing member is located outside the detection rod, and the outside of the sealing member abuts against the inner wall of the detection cylinder.

5. A rubber sealing ring sealing test device according to claim 1, characterized in that: The first air outlet holes are arranged around the detection cylinder itself, and the first air outlet holes are not connected to each other. The second air outlet holes are arranged around the detection rod itself, and the second air outlet holes are not connected to each other.

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