A test tool for waterproof performance of a sealing gasket

Abstract

The utility model discloses a kind of test tool of sealing gasket waterproof performance, it is related to sealing performance test technical field, solve the sealing gasket using the mode of sealing tank water pressure to the sample piece is sealed performance test, its operation is complex, long test cycle Problem. Including first outer sleeve and second outer sleeve, the sealing gasket to be tested is sleeved in cable, the inner periphery of one end of first outer sleeve and / or second outer sleeve is opened a circle of clamping groove, first outer sleeve and second outer sleeve are mutually connected and pass through clamping groove and are clamped the outer periphery of sealing gasket to be tested, the second outer sleeve is sealed connection third end cover in the end away from first outer sleeve, through hole is penetrated in third end cover and is connected connecting pipe, connecting pipe is into the fluid medium of setting pressure to third end cover inside. It can be convenient cable sealing gasket waterproof test, it is convenient to operate and short test cycle, reaches the effect of improving test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sealing performance testing technology, and in particular to a testing fixture for the waterproof performance of a sealing gasket. Background Technology

[0002] Gaskets are key sealing components for achieving a seal between cables and pipes and other equipment. They can block external moisture, corrosive media and organisms, ensuring the safe operation of cable systems. They are particularly suitable for situations requiring sealing and waterproofing, such as submarine cables. However, existing gaskets use a sealed tank with water pressure to test the sealing performance of samples, which is complicated to operate, has a long test cycle, and low testing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a testing fixture for the waterproof performance of cable gaskets, which facilitates the testing of the waterproof performance of cable gaskets, is easy to operate, has a short testing cycle, and improves testing efficiency.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A testing fixture for the waterproof performance of a sealing gasket includes a first outer sleeve and a second outer sleeve. The sealing gasket to be tested is fitted onto a cable. A clamping groove is formed on the inner circumference of the first outer sleeve and / or the second outer sleeve at one end close to each other. The first outer sleeve and the second outer sleeve are connected to each other and clamp the outer circumference of the sealing gasket to be tested through the clamping groove. A third end cap is sealed to the end of the second outer sleeve away from the first outer sleeve. A through hole is provided on the third end cap and a connecting pipe is connected to it. A fluid medium with a set pressure is introduced into the inside of the third end cap through the connecting pipe.

[0005] By adopting the above technical solution, the gasket to be tested is sleeved on the cable, and the first outer sleeve and the second outer sleeve are connected to each other and clamp the outer periphery of the gasket to be tested through the clamping groove to achieve sealing simulation; the third end cap achieves the sealing of the cable test end and introduces fluid medium into it, and finally simulates the underwater stress through the pressure of the fluid medium, causing the gasket to deform accordingly, so as to quickly test the waterproof performance of irregularly shaped gaskets with different designs and improve the testing efficiency.

[0006] Furthermore, the third end cap is also connected to a pressure gauge.

[0007] By adopting the above technical solution, the pressure gauge tests the pressure of the fluid medium, realizes the quantification of the test results, makes the test results more accurate, and facilitates comparison and recording.

[0008] Furthermore, the cable end is connected to a first seal.

[0009] By adopting the above technical solution, the cable end is sealed, thus avoiding the impact of the cable's internal sealing capability on the gasket's test results.

[0010] Furthermore, the first seal includes a first waterproof tape layer wrapped around the end of the cable.

[0011] By adopting the above technical solution, the first waterproof layer is wrapped around the cable end to achieve cable sealing.

[0012] Furthermore, the first sealant also includes a first putty layer coated on the outside of the first waterproof tape layer and the cable.

[0013] By adopting the above technical solution, the first sealant layer further improves the sealing effect of the cable.

[0014] Furthermore, the first sealant also includes a cap fitted over the first putty layer.

[0015] By adopting the above technical solution, the cap achieves a rigid seal at the cable end, ensuring the accuracy of the test results.

[0016] Furthermore, the cap is a heat-shrink cap.

[0017] By adopting the above technical solution, the heat-shrink cap method facilitates the fitting of the cap and the final sealing and fixation.

[0018] Furthermore, a second sealing element is provided on the outside of the opening end of the cap.

[0019] By adopting the above technical solution, the sealing effect is further improved by sealing the opening end of the cap.

[0020] Furthermore, the second seal includes a second waterproof tape layer wrapped around the opening end of the cap and the outer periphery of the cable.

[0021] By adopting the above technical solution, a second waterproof layer wrapped around the opening end of the cap and the outer periphery of the cable is used to achieve a seal between the opening end of the cap and the outer periphery of the cable.

[0022] Furthermore, the second seal also includes a PVC strip layer wrapped around the second waterproof strip layer.

[0023] By adopting the above technical solution, the PVC strip layer reinforces the sealing effect of the second waterproof strip layer.

[0024] In summary, this utility model has the following beneficial effects: The gasket to be tested is fitted onto the cable, while the first and second outer sleeves are connected to each other and clamp the outer periphery of the gasket to be tested through a clamping groove to achieve a sealing simulation. The third end cap seals the cable test end and introduces a fluid medium into it. Finally, the pressure of the fluid medium simulates the underwater stress, causing the gasket to deform accordingly. This allows for rapid testing of the waterproof performance of irregularly shaped gaskets with different designs, improving testing efficiency. At the same time, the pressure of the fluid medium is measured by a pressure gauge to quantify the test results, making the test results more accurate and easier to compare and record. The first waterproof tape layer, the first putty layer, and the cap improve the sealing effect of the cable and ensure the accuracy of the test results. The heat-shrink cap method facilitates the fitting of the cap and the final sealing and fixing. The second waterproof tape layer and PVC tape layer wrapped around the opening end of the cap and the outer periphery of the cable achieve the seal between the opening end of the cap and the outer periphery of the cable. This application utilizes air pressure and other methods to simulate underwater stress conditions and quickly test the waterproof performance of irregularly shaped sealing gaskets with different designs. Observing the air gauge yields more obvious and quantitative results than observing water stains. Furthermore, it only requires inflation to simulate deep-water pressure, resulting in a shorter testing cycle, more convenient installation, and lower personnel requirements. The testing is also simpler and the results are more quantitative. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of a testing fixture for the waterproof performance of a sealing gasket according to this utility model.

[0027] In the diagram, 1. First outer sleeve; 2. Second outer sleeve; 3. Third end cap; 4. First waterproof tape layer; 5. First putty layer; 6. Sealing cap; 7. Second waterproof tape layer; 8. Second putty layer; 9. Fixing bolt. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These embodiments do not constitute a limitation on this utility model. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0029] A testing fixture for the waterproof performance of a sealing gasket, such as Figure 1As shown, it includes a first outer sleeve 1 and a second outer sleeve 2. The gasket to be tested is sleeved on the cable, and it can also be directly fixed by means of glue, etc., to complete the fixing and sealing between the gasket to be tested and the cable. A clamping groove is formed on the inner circumference of the first outer sleeve 1 and / or the second outer sleeve 2 near one end of each other. The first outer sleeve 1 and the second outer sleeve 2 are connected to each other and clamp the outer circumference of the sealing gasket to be tested through the clamping groove. In this embodiment, the clamping groove is formed on the inner circumference of the end of the second outer sleeve 2, while the end of the first outer sleeve 1 is integrally connected to a clamping block (without a clamping groove) that is adapted to the clamping groove. A deformable sealing ring is integrally connected to the outer circumference of the sealing gasket. There is a gap between the clamping block and the bottom of the clamping groove. This gap is smaller than the thickness of the deformable sealing ring, so that the clamping block and the clamping groove clamp the deformable sealing ring and deform it to a certain extent to achieve a seal. Among them, several fixing bolts 9 are connected between the outer periphery of the first outer sleeve 1 and the second outer sleeve 2 to achieve mutual connection. A fixing plate is connected to the first outer sleeve 1 for fixing and installing in positions such as machine base. A positioning block is connected to the inner periphery of the second outer sleeve 2. The sealing gasket to be tested is inserted into the second outer sleeve 2 until it abuts against the positioning block to improve its positioning effect during installation.

[0030] like Figure 1 As shown, the second outer sleeve 2 is sealed to the third end cap 3 at the end away from the first outer sleeve 1. The third end cap 3 has a through hole and is connected to an air pipe. The air pipe introduces a fluid medium with a set pressure into the inside of the third end cap 3. In this embodiment, the fluid medium is air. A tee is connected to the third end cap 3. The tee contains a sealing gasket to achieve a seal after connection. One end of the tee is connected to the third end cap 3 to allow air to enter the third end cap 3. The other end is connected to a ball valve and an air pipe quick connector to achieve air pipe connection. The other end is connected to a pressure gauge to achieve air pressure measurement. Among them, several fixing bolts 9 are connected between the outer periphery of the second outer sleeve 2 and the third end cover 3 to achieve mutual connection. A sealing groove is also opened on the inner side of the third end cover 3 and a sealing ring is placed there. The sealing ring abuts against the second outer sleeve 2 to achieve sealing between the second outer sleeve 2 and the third end cover 3.

[0031] like Figure 1 As shown, the cable end is connected to a first sealing element. The first sealing element includes a first waterproof tape layer 4 wrapped around the cable end; the first sealing element also includes a first putty layer 5 coated on the first waterproof tape layer 4 and the outside of the cable; the first sealing element also includes a cap 6 sleeved on the first putty layer 5 and the outside of the cable. The cap 6 is a heat-shrink cap, so that after being sleeved on the first putty layer 5 and the outside of the cable, it is fixed by heat shrinking. A second sealing element is provided outside the opening end of the cap 6 to seal the opening end of the cap 6; the second sealing element includes a second putty layer 71 coated on the opening end of the cap 6 and the outer periphery of the cable, a second waterproof tape layer 7 wrapped around the second putty layer 71, and a PVC tape layer 8 further wrapped and fixed around the second waterproof tape layer 7 to achieve the sealing of the opening end of the cap 6.

[0032] Working principle: The gasket to be tested is fitted onto the cable, the cable end is wrapped with the first waterproof tape layer 4 and the first putty layer 5, and sealed with the heat shrink cap 6. The gasket to be tested is fitted with locking cylindrical fittings (first outer sleeve 1 and second outer sleeve 2 are locked), and the top is sealed with the third end cap 3 with a quick-connect air tube and pressure gauge. According to specific test requirements, air at a specified pressure is injected into the gasket through an air tube, and the change in internal pressure is confirmed by reading the pressure gauge to determine whether the sealing performance of the gasket under test meets the requirements at the specified pressure.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A testing fixture for the waterproof performance of a sealing gasket, characterized in that: The device includes a first outer sleeve and a second outer sleeve. The gasket to be tested is fitted onto the cable. A clamping groove is formed on the inner circumference of the first outer sleeve and / or the second outer sleeve at one end close to each other. The first outer sleeve and the second outer sleeve are connected to each other and clamp the outer circumference of the gasket to be tested through the clamping groove. The end of the second outer sleeve away from the first outer sleeve is sealed and connected to a third end cap. The third end cap has a through hole and is connected to a connecting pipe. The connecting pipe introduces a fluid medium with a set pressure into the inside of the third end cap.

2. The testing fixture for the waterproof performance of a sealing gasket according to claim 1, characterized in that: The third end cap is also connected to a pressure gauge.

3. The testing fixture for the waterproof performance of a sealing gasket according to claim 1 or 2, characterized in that: The cable end is connected to a first seal.

4. The testing fixture for the waterproof performance of a sealing gasket according to claim 3, characterized in that: The first seal includes a first waterproof tape layer wrapped around the end of the cable.

5. The testing fixture for the waterproof performance of a sealing gasket according to claim 4, characterized in that: The first sealant also includes a first putty layer coated on the outside of the first waterproof tape layer and the cable.

6. The testing fixture for the waterproof performance of a sealing gasket according to claim 5, characterized in that: The first sealing element also includes a cap that is fitted over the first putty layer.

7. The testing fixture for the waterproof performance of a sealing gasket according to claim 6, characterized in that: The cap is a heat-shrink cap.

8. The testing fixture for the waterproof performance of a sealing gasket according to claim 6, characterized in that: A second sealing element is provided on the outside of the opening end of the cap.

9. The testing fixture for the waterproof performance of a sealing gasket according to claim 8, characterized in that: The second seal includes a second waterproof tape layer wrapped around the opening end of the cap and the outer periphery of the cable.

10. The testing fixture for the waterproof performance of a sealing gasket according to claim 9, characterized in that: The second seal also includes a PVC strip layer wrapped around the second waterproof strip layer.

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