Air tightness detection device for rubber sealing element

Abstract

The utility model relates to the field of rubber sealing element detection equipment, and discloses a rubber sealing element air tightness detection device which comprises a workbench, the upper end of the workbench is fixedly connected with a fixing frame, the top end of the interior of the fixing frame is fixedly connected with a hydraulic cylinder, a detection assembly is arranged above the workbench, and the hydraulic cylinder is fixedly connected with the hydraulic cylinder. The detection assembly comprises a placing cylinder and a moving plate, the placing cylinder is fixedly connected to the upper end of the workbench, the upper end of the placing cylinder is fixedly connected with a sealing ring, the bottom end of the left side of the placing cylinder is provided with an air outlet, the left end of the air outlet is fixedly connected with an exhaust pipe, and the left end of the placing cylinder is provided with a glass water tank. According to the utility model, through the arrangement of the detection assembly, the sealing element can be rapidly detected after being placed into the placing cylinder, and meanwhile, the sealing element is separated from water, so that the sealing element is prevented from being adhered with water in the detection process and further needs to be dried in the later period.

Description

Technical Field

[0001] The utility model relates to the field of rubber sealing component detection equipment, in particular to an air tightness detection device for rubber sealing components. Background Art

[0002] Rubber seals are generally used to prevent leakage, because rubber will produce greater deformation when given a smaller stress in different media. This deformation can provide contact pressure, compensate for the leakage gap, and achieve the purpose of sealing. After the rubber seals are produced, they need to be tested for air tightness using an air tightness detection device to ensure the product quality of the rubber seals.

[0003] After searching, Chinese patent announcement number: CN216207308U discloses an air tightness detection device for a rubber seal for a water pump, which includes setting a placement block. When in use, the sealing cover is driven by driving the telescopic device to cover the placement block, and then the inside of the water tank is filled with water, and then a micro air pump is used to inflate the inside of the sealing cover. At this time, if bubbles are generated inside the water tank, the seal is unqualified, otherwise the seal is qualified, thereby achieving the effect of quickly detecting whether the air tightness of the seal is qualified.

[0004] However, in actual use of the above-mentioned air tightness detection device, since the water surface needs to submerge the seal to observe the bubble situation in order to judge the air tightness detection result, the outer surface of the seal will be contaminated with moisture during the detection process, and then the seal needs to be taken out with a drying component to dry the seal after the detection, resulting in reduced processing and detection efficiency. Therefore, a rubber seal air tightness detection device is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a rubber seal air tightness detection device, which aims to improve the problem in the prior art that when the air tightness detection device detects the seal, the surface of the seal will be contaminated with moisture, resulting in the need for subsequent drying treatment, which delays the detection and processing efficiency.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a rubber seal air tightness detection device, comprising a workbench, the upper end of the workbench is fixedly connected to a fixing frame, the inner top end of the fixing frame is fixedly connected to a hydraulic cylinder, and a detection component is arranged above the workbench, and the detection component comprises:

[0007] A placing tube, the placing tube is fixedly connected to the upper end of the workbench, a sealing ring is fixedly connected to the upper end of the placing tube, an air outlet is opened at the left bottom end of the placing tube, an exhaust pipe is fixedly connected to the left end of the air outlet, a glass water tank is arranged at the left end of the placing tube, and a triangular plate is fixedly connected to the inner bottom end of the placing tube;

[0008] A movable plate, wherein the movable plate is fixedly connected to the bottom output end of the hydraulic cylinder, an upper end of the movable plate is fixedly connected to an air pump, a bottom output end of the air pump passes through the movable plate, a bottom output end of the air pump is fixedly connected to a telescopic hose, and an extrusion assembly is arranged at the bottom of the movable plate.

[0009] As a further description of the above technical solution:

[0010] A placement groove is provided on the inner bottom surface of the placement tube, a limiting groove is provided at the bottom end of the placement groove, a limiting block is inserted inside the limiting groove, a connecting rod is fixedly connected to the upper end of the limiting block, and a triangular placement ring is fixedly connected to the upper surface of the connecting rod.

[0011] As a further description of the above technical solution:

[0012] The extrusion assembly comprises an elastic member, the elastic member is fixedly connected to the bottom end of the moving plate, and the bottom end of the elastic member is fixedly connected to a pressing plate.

[0013] As a further description of the above technical solution:

[0014] The left end of the exhaust pipe is located inside the glass water tank.

[0015] As a further description of the above technical solution:

[0016] The bottom end of the telescopic hose is fixedly connected to the upper surface of the pressing plate, and the bottom space of the pressing plate is communicated with the bottom output end of the air pump through the telescopic hose.

[0017] As a further description of the above technical solution:

[0018] The connecting rod is plugged into the interior of the limiting groove.

[0019] As a further description of the above technical solution:

[0020] The bottom surface of the triangular placement ring is in contact with the inner bottom surface of the placement tube.

[0021] As a further description of the above technical solution:

[0022] The cross section of the triangular placement ring is arranged in a triangular structure.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, by setting up a detection component, the seal can be placed into the placement tube and then quickly tested. At the same time, the seal is separated from water to prevent the seal from being contaminated with moisture during the test, which requires subsequent drying. By setting up an extrusion component, seals of different thicknesses can be automatically and quickly fixed and limited, thereby speeding up the detection efficiency. If bubbles are generated inside the glass water tank during the test, it means that the seal is leaking. If there are no bubbles, it means that the air tightness of the seal is qualified.

[0025] 2. In the utility model, by cooperating with the placement groove, limit groove, limit block, connecting rod and triangular placement ring, the detection component can perform fixed limit detection on the Y-type seal, thereby improving the adaptability of the inspection device. At the same time, the triangular placement ring can be quickly replaced to adapt to Y-type seals of different specifications, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the whole of a rubber sealing air tightness detection device proposed by the utility model;

[0027] Figure 2 A schematic diagram of a detection component of a rubber seal air tightness detection device proposed by the utility model;

[0028] Figure 3 The utility model provides a rubber seal air tightness detection device Figure 2 Schematic diagram at part A;

[0029] Figure 4 The utility model provides a schematic diagram of a limit block, a connecting rod and a triangular placement ring of a rubber seal air tightness detection device.

[0030] Legend:

[0031] 1. Workbench; 2. Fixed frame; 3. Hydraulic cylinder; 401. Placement tube; 402. Sealing ring; 403. Air outlet; 404. Exhaust pipe; 405. Glass water tank; 406. Triangular plate; 407. Moving plate; 408. Air pump; 409. Telescopic hose; 501. Placement slot; 502. Limiting slot; 503. Limiting block; 504. Connecting rod; 505. Triangular placement ring; 601. Elastic member; 602. Pressing plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1 The utility model provides an embodiment: a rubber seal air tightness detection device, including a workbench 1, the upper end of the workbench 1 is fixedly connected to a fixing frame 2, the inner top end of the fixing frame 2 is fixedly connected to a hydraulic cylinder 3, and a detection component is arranged above the workbench 1.

[0034] Reference Figure 1-Figure 3 The detection component includes: a placement tube 401 and a moving plate 407. The placement tube 401 is fixedly connected to the upper end of the workbench 1. The upper end of the placement tube 401 is fixedly connected with a sealing ring 402. When the moving plate 407 moves downward, the sealing ring 402 is squeezed, so that the inside of the placement tube 401 is sealed. An air outlet 403 is opened at the bottom left end of the placement tube 401. The left end of the air outlet 403 is fixedly connected with an exhaust pipe 404. The inside of the exhaust pipe 404 is connected to the inside of the placement tube 401 through the air outlet 403. A glass water tank 405 is arranged at the left end of the placement tube 401. The left end of the exhaust pipe 404 is located at the glass water tank. Inside the box 405, the gas inside the placing tube 401 can enter into the glass water tank 405 through the exhaust pipe 404 and the air outlet 403. Water can be placed in the glass water tank 405 so that the water surface is above the bottom of the left end of the exhaust pipe 404. When the gas inside the placing tube 401 enters into the glass water tank 405, bubbles will emerge from the glass water tank 405. The placing space inside the placing tube 401 is separated from the inspection space inside the glass water tank 405, so that when the rubber seal is inspected, the seal is not in water, which results in the seal being taken out after the inspection is completed and needs to be dried, thereby delaying the processing efficiency.

[0035] The inner bottom end of the placement cylinder 401 is fixedly connected with a triangular plate 406, and the triangular plate 406 can perform a protective treatment on the air outlet 403 to prevent the air outlet 403 from being blocked when the seal is placed and affecting the detection of the seal. The movable plate 407 is fixedly connected to the bottom output end of the hydraulic cylinder 3. When the hydraulic cylinder 3 is started, the movable plate 407 can be driven to move linearly in the up and down directions. When the movable plate 407 moves downward, the inside of the placement cylinder 401 can be sealed. The diameter of the movable plate 407 is larger than that of the placement cylinder 401. The upper end of the movable plate 407 is fixedly connected with an air pump 408. The bottom output end of the air pump 408 runs through the movable plate 407. The bottom output end of the air pump 408 is fixedly connected with a telescopic hose 409. When the air pump 408 is started, the telescopic hose 40 9 blows air downwardly toward the pressing plate 602, an extrusion assembly is provided at the bottom of the movable plate 407, the extrusion assembly comprises an elastic member 601, the elastic member 601 is fixedly connected to the bottom end of the movable plate 407, the bottom end of the elastic member 601 is fixedly connected to the pressing plate 602, the bottom end of the telescopic hose 409 is fixedly connected to the upper surface of the pressing plate 602, the bottom space of the pressing plate 602 is interconnected with the bottom output end of the air pump 408 through the telescopic hose 409, since the elastic member 601 can be compressed, the distance between the pressing plate 602 and the movable plate 407 can be adjusted according to the seals of different thicknesses, so that the air tightness detection process of the seals of different thicknesses can be quickly performed, thereby improving the adaptability of the device, and the telescopic hose 409 can be arranged to avoid hindering the movement of the pressing plate 602.

[0036] After the seal is placed inside the placement tube 401, the hydraulic cylinder 3 can be started to drive the movable plate 407 to move downward. The pressure plate 602 will contact the seal first, and then squeeze the elastic member 601, so that the elastic member 601 is compressed to generate elastic potential energy, so that the movable plate 407 can continue to move downward to cooperate with the sealing ring 402 to seal the inside of the placement tube 401. At this time, the pressure plate 602 will fix the seal under the action of the elastic member 601, and then the air pump 408 can be started to inflate the inside of the seal. If there is a leak in the seal, the gas can escape from the inside of the seal to the inside of the glass water tank 405 to generate bubbles, so that the staff can quickly test the air tightness of the seal.

[0037] Reference Figure 2-Figure 4A placement groove 501 is provided on the bottom surface of the placement tube 401, and a limiting groove 502 is provided at the bottom end of the placement groove 501. A limiting block 503 is inserted into the limiting groove 502. A connecting rod 504 is fixedly connected to the upper end of the limiting block 503. The connecting rod 504 is inserted into the limiting groove 502. The connecting rod 504 and the limiting block 503 can be quickly pulled out and replaced from the inside of the placement groove 501, and triangular placement rings 505 of different sizes are adapted. A triangular placement ring 505 is fixedly connected to the upper surface of the connecting rod 504. The bottom surface of the triangular placement ring 505 fits with the inner bottom surface of the placement tube 401. The cross-section of the corner placement ring 505 is set in a triangular structure. When some Y-type seals need to be inspected, the bottom end of the Y-type seal can be placed on the triangular placement ring 505 for stable placement and limiting. When Y-type seals of different specifications need to be placed and inspected, connecting rods 504 of different lengths can be replaced according to the diameter of the Y-type seal and placed into the placement groove 501. Y-type seals of different specifications can be inspected and processed. When O-type seals need to be inspected, a sealing block that matches the size of the placement groove 501 can be inserted into the placement groove 501 for inspection, and the operation is simple.

[0038] Working principle: Place the seal into the interior of the placement tube 401, then start the hydraulic cylinder 3 to drive the movable plate 407 to move downward, so that the pressure plate 602 can fix the seal and limit the interior of the placement tube 401. At the same time, the movable plate 407 can seal the interior of the placement tube 401. Start the air pump 408 to ventilate the interior of the seal through the telescopic hose 409. If there is a leak in the seal, the gas can enter the glass water tank 405 through the air outlet 403 and the exhaust pipe 404 to generate bubbles. Otherwise, there will be no bubbles. The detection method is simple. At the same time, since the seal is placed separately from the interior of the glass water tank 405, when the measured seal is taken out, it can be avoided that the seal is contaminated with moisture, which requires subsequent drying treatment, which affects the processing efficiency.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber seal air tightness detection device, comprising a workbench (1), the upper end of the workbench (1) is fixedly connected to a fixing frame (2), the inner top end of the fixing frame (2) is fixedly connected to a hydraulic cylinder (3), characterized in that: A detection component is arranged above the workbench (1), and the detection component comprises: A placement tube (401), the placement tube (401) is fixedly connected to the upper end of the workbench (1), a sealing ring (402) is fixedly connected to the upper end of the placement tube (401), an air outlet (403) is provided at the left bottom end of the placement tube (401), an exhaust pipe (404) is fixedly connected to the left end of the air outlet (403), a glass water tank (405) is provided at the left end of the placement tube (401), and a triangular plate (406) is fixedly connected to the inner bottom end of the placement tube (401); A movable plate (407), wherein the movable plate (407) is fixedly connected to the bottom output end of the hydraulic cylinder (3), the upper end of the movable plate (407) is fixedly connected to an air pump (408), the bottom output end of the air pump (408) passes through the movable plate (407), the bottom output end of the air pump (408) is fixedly connected to a telescopic hose (409), and an extrusion component is arranged at the bottom of the movable plate (407).

2. The rubber seal air tightness detection device according to claim 1, characterized in that: The bottom surface of the placement tube (401) is provided with a placement groove (501), the bottom end of the placement groove (501) is provided with a limiting groove (502), a limiting block (503) is inserted into the limiting groove (502), the upper end of the limiting block (503) is fixedly connected to a connecting rod (504), and the upper surface of the connecting rod (504) is fixedly connected to a triangular placement ring (505).

3. The rubber seal air tightness detection device according to claim 1, characterized in that: The extrusion assembly comprises an elastic member (601), wherein the elastic member (601) is fixedly connected to the bottom end of the movable plate (407), and the bottom end of the elastic member (601) is fixedly connected to a pressing plate (602).

4. The rubber seal air tightness detection device according to claim 1, characterized in that: The left end of the exhaust pipe (404) is located inside the glass water tank (405).

5. The air tightness detection device for a rubber seal according to claim 3, characterized in that: The bottom end of the telescopic hose (409) is fixedly connected to the upper surface of the pressing plate (602), and the bottom space of the pressing plate (602) is connected to the bottom output end of the air pump (408) through the telescopic hose (409).

6. The air tightness detection device for a rubber seal according to claim 2, characterized in that: The connecting rod (504) is plugged into the interior of the limiting groove (502).

7. The air tightness detection device for a rubber seal according to claim 2, characterized in that: The bottom surface of the triangular placement ring (505) fits with the inner bottom surface of the placement tube (401).

8. The air tightness detection device for a rubber seal according to claim 2, characterized in that: The cross section of the triangular placement ring (505) is arranged in a triangular structure.

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