Testing device for testing tear resistance of flexible sealing structure in high-pressure state

Abstract

The utility model discloses a testing device for testing the tear resistance of a flexible sealing structure in a high-pressure state, which is characterized in that a locking screw rod is matched with an inner cylinder body, so that the bottom of cylindrical rubber is further tightly pressed with the inner wall of a piston through an arc-shaped pressing plate, and the bottom of the cylindrical rubber is fixed; then the upper part of the cylindrical rubber is firstly adhered to the slope of the inner wall of the tank body through viscose glue, and then is pressed through the pressing ring, so that the upper part of the cylindrical rubber is fixed, and the cylindrical rubber is pulled through pressurization, so that the tear resistance of the cylindrical rubber for flexible sealing is detected, and compared with a traditional direct pulling mode, the tear resistance of the cylindrical rubber is detected. The tear resistance test of the flexible sealing structure in a high-pressure state can be simulated, the detection result is more accurate, the bottom of the cylindrical rubber is fixed by adopting the arc-shaped pressing ring, and then the cylindrical rubber is tightly pressed by the pressing ring, so that test failure caused by falling of the cylindrical rubber can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible sealing structure anti -tear performance testing device technical field, concretely is a kind of test high pressure state flexible sealing structure anti -tear performance's test device. BACKGROUND

[0002] For artificial chamber type gas storage, first prepare to use rubber to seal the inside of chamber, and this flexible sealing structure needs to bear high pressure when storing gas, therefore, before using flexible sealing material, the test of flexible sealing structure anti -tear performance under high pressure is needed.

[0003] At present, the anti -tear performance of flexible sealing material such as rubber is generally detected by directly fixing both ends of a flexible material (non-cylindrical structure) and then pulling, this detection method has great limitations, the test is not accurate enough, and the high-pressure sealing state in actuality cannot be simulated, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. SUMMARY

[0004] The utility model discloses a kind of test high pressure state flexible sealing structure anti -tear performance's test device, by the cooperation of locking screw and inner cylinder, make cylindrical rubber bottom is further compressed tightly by arc pressing plate and piston inner wall, to realize the fixation of cylindrical rubber bottom, then through adhesive, cylindrical rubber upper part is pasted at the slope of tank inner wall, then again through compression ring and is compressed, to realize the fixation of cylindrical rubber upper part, by pressurization, cylindrical rubber is pulled, to realize the anti -tear performance detection of cylindrical rubber for flexible sealing, compared with traditional direct pulling mode, high-pressure state flexible sealing structure anti -tear performance test can be simulated, detection result is more accurate, to solve the problem proposed in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of test high pressure state flexible sealing structure anti -tear performance's test device, including tank, tank cover and piston;

[0006] The bottom of the tank is provided with a bottom plate, a gas outlet observation hole is formed in the center of the bottom plate, an inclined slope is arranged inside the tank, a compression ring is arranged at the inclined slope inside the tank, and the outer edge of the compression ring is tightly matched with the inclined slope.

[0007] The tank cover is arranged on the upper surface of the tank, a gas inlet hole is formed in the center of the tank cover, a gas inlet pipe is arranged on the lower surface of the tank cover and located at the gas inlet hole, and the gas inlet pipe is arranged inside the tank and passes through the compression ring.

[0008] The upper surface of the piston is open, the piston is movably arranged at the lower end inside the tank body, an inner cylinder is arranged inside the piston, a plurality of screw holes are uniformly arranged at the upper portion of the inner cylinder, locking screws are arranged at the positions of the screw holes, arc-shaped pressing plates are arranged at the outer ends of the locking screws through bolts, and an identification rod is arranged at the bottom of the piston and penetrates the gas observation opening in the bottom plate.

[0009] Preferably, the tank cover is connected with the top of the tank body through bolts and nuts.

[0010] Preferably, the outer edge of the lower surface of the pressing ring is chamfered, and a plurality of handles are arranged on the upper surface of the pressing ring.

[0011] Preferably, a plurality of connecting rings are arranged between the inner wall of the piston and the inner cylinder through bolts, and a reinforcing plate is arranged at the connection position between the bottom of the inner cylinder and the piston.

[0012] Preferably, the outer end of the locking screw is provided with an outer hexagonal head.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The cooperation of the locking screw and the inner cylinder enables the bottom of the cylindrical rubber to be further tightly pressed against the inner wall of the piston through the arc-shaped pressing plate, so that the bottom of the cylindrical rubber is fixed, then the upper portion of the cylindrical rubber is pasted on the slope of the inner wall of the tank body through adhesive, and then the upper portion of the cylindrical rubber is tightly pressed through the pressing ring, so that the upper portion of the cylindrical rubber is fixed, the cylindrical rubber is pulled through pressurization, so that the anti-tear performance of the cylindrical rubber for flexible sealing is detected, compared with the traditional direct pulling mode, the anti-tear performance of the flexible sealing structure under high pressure can be simulated, and the detection result is more accurate.

[0015] (2) The arc-shaped pressing ring is used to fix the bottom of the cylindrical rubber, the upper portion of the cylindrical rubber is pasted through adhesive, and then the upper portion of the cylindrical rubber is tightly pressed through the pressing ring, so that the test failure caused by the falling of the cylindrical rubber can be avoided.

[0016] (3) The identification rod is arranged at the bottom of the piston and penetrates the gas observation opening in the bottom plate, on one hand, the position of the piston can be observed, and on the other hand, whether the rubber is torn can be observed, so that whether the rubber is torn can be judged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model discloses a structure schematic diagram.

[0018] Figure 2 For the attached Figure 1 The enlarged structure schematic diagram of the mark A is shown in the figure.

[0019] Figure 3 The utility model discloses a structure schematic diagram.

[0020] In the figure: tank body 1, tank cover 2, piston 3, bottom plate 4, gas outlet observation port 5, slope 6, press ring 7, air inlet hole 8, air inlet pipe 9, inner cylinder 10, locking screw 11, arc pressing plate 12, mark rod 13, handle 14, connecting ring 15, reinforcing plate 16, outer hexagonal head 17, cylindrical rubber 18. Specific implementation

[0021] The technical scheme of the utility model will be described clearly and completely in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] It should be noted that in the description of the utility model, it should be noted that the terms "in", "out", "up", "down", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0023] Please refer to Figures 1-3 The utility model provides a kind of technical scheme: a test device for testing the tear resistance of flexible sealing structure under high pressure state, including tank body 1, tank cover 2 and piston 3.

[0024] Tank body 1 bottom is provided with bottom plate 4, and bottom plate 4 center position is provided with gas outlet observation port 5, and tank body 1 inside is provided with slope 6, and tank body 1 inside and at slope 6 are provided with press ring 7, and the outer edge of press ring 7 is tightly matched with slope 6, and the outer edge of the lower surface of press ring 7 is chamfered, by setting chamfer, avoid when pressing press ring 7, rubber is pressed to break, and the upper surface of press ring 7 is provided with a plurality of handles 14, so as to be hung out from tank body 1 in press ring 7;

[0025] A tank cover 2 is arranged on the upper surface of the tank body 1. The tank cover 2 is connected to the top of the tank body 1 by bolts and nuts, so as to realize the connection and disassembly of the tank cover 2 and the tank body 1. A gas inlet hole 8 is arranged at the center of the tank cover 2. An air inlet pipe 9 is arranged on the lower surface of the tank cover 2 and located at the gas inlet hole 8. The air inlet pipe 9 is arranged in the tank body 1 and penetrates the compression ring 7.

[0026] The upper surface of the piston 3 is open. The piston 3 is movably arranged at the lower end of the tank body 1. An inner cylinder 10 is arranged on the inner side of the piston 3. A plurality of connecting rings 15 are arranged between the inner wall of the piston 3 and the inner cylinder 10 by bolts. A reinforcing plate 16 is arranged at the connecting position between the bottom of the inner cylinder 10 and the piston 3. The connecting rings 15 are used to realize the connection and support between the inner cylinder 10 and the piston 3. The reinforcing plate 16 is used to ensure the structural strength of the inner cylinder 10. A plurality of screw holes are uniformly arranged on the upper part of the inner cylinder 10. Locking screws 11 are arranged at the positions of the screw holes. Arc-shaped pressing plates 12 are arranged at the outer ends of the locking screws 11 by bolts. The bolts are not locked, so as to realize the rotary connection between the arc-shaped pressing plates 12 and the locking screws 11. The bolt holes of the arc-shaped pressing plates 12 are concave, so as to ensure that the heads of the bolts do not exceed the outer surface of the arc-shaped pressing plates 12. Hexagonal heads 17 are arranged at the outer ends of the locking screws 11, so as to facilitate the rotation of the locking screws 11. An identification rod 13 is arranged at the bottom of the piston 3. The identification rod 13 penetrates the gas outlet observation hole 5 of the bottom plate 4.

[0027] The installation method and use principle are as follows: firstly, the connecting ring 15 is sleeved on the outside of the inner cylinder body 10 and fastened by bolts, then the connecting ring 15 is fastened and connected with the side wall of the piston 3 by bolts, then the reinforcing plates 16 are welded with the inner cylinder body 10 and the bottom of the piston 3 respectively, and the connection of the inner cylinder body 10 and the piston 3 is completed. The locking screw 11 is passed through the screw hole on the upper part of the inner cylinder body 10, and the arc-shaped pressing plate 12 is installed on the outer end of the locking screw 11 by bolts. Then the bottom of the cylindrical rubber 18 is connected with the inner wall of the piston 3 by adhesive, then the locking screw 11 is rotated, the arc-shaped pressing plate 12 is pressed on the inner wall of the cylindrical rubber 18, the bottom of the cylindrical rubber 18 is fixed, then the piston 3 is placed into the tank body 1. The cylindrical rubber 18 is adhered to the inclined slope 6 of the inner wall of the tank body 1 by adhesive, then the pressing ring 7 is placed into the tank body 1 and moves the inclined slope 6, and is pressed on the upper part of the cylindrical rubber 18, finally the tank cover 2 is placed on the upper part of the tank body 1 and is fixed by bolts and nuts, at this time, the bottom of the air inlet pipe 9 abuts against the piston 3, the installation and preparation work are completed, and the space between the lower part of the piston 3 and the bottom plate 4 is separated by the cylindrical rubber 18 and the inner cavity of the upper part of the tank body 1. In use, the tank body 1 is pressurized through the air inlet hole 8 of the tank cover 2, through the air pressure, the piston 3 is lowered and pulls the cylindrical rubber 18, so that the tear resistance of the rubber is realized, then the position of the piston 3 is observed through the identification rod 13, if the rubber is torn, the identification rod 13 is located at the bottom, and the air outlet observation hole 5 of the bottom plate 4 leaks. The utility model has the advantages of reasonable structure, through the cooperation of the locking screw 11 and the inner cylinder body 10, the bottom of the cylindrical rubber 18 is further tightly pressed on the inner wall of the piston 3 through the arc-shaped pressing plate 12, so that the fixation of the bottom of the cylindrical rubber 18 is realized, then the upper part of the cylindrical rubber 18 is pasted on the inclined slope 6 of the inner wall of the tank body 1 by adhesive, then the upper part of the cylindrical rubber 18 is pressed by the pressing ring 7, so that the fixation of the upper part of the cylindrical rubber 18 is realized, through pressurization, the cylindrical rubber 18 is pulled, so that the tear resistance of the cylindrical rubber 18 used for flexible sealing is realized, compared with the traditional direct pulling mode, the anti-tear performance of the flexible sealing structure under high pressure state can be simulated, the detection result is more accurate, meanwhile, the bottom of the cylindrical rubber 18 is fixed by the arc-shaped pressing ring 7, the upper part is pasted by adhesive, then is tightly pressed by the pressing ring 7, so that the test failure caused by the falling of the cylindrical rubber 18 can be avoided, the bottom of the piston 3 is provided with the identification rod 13, the identification rod 13 passes through the air outlet observation hole 5 of the bottom plate 4, on one hand, the position of the piston 3 can be observed, on the other hand, whether the piston 3 leaks can be observed, so that whether the rubber is torn can be judged.

[0028] The parts not described in the utility model are the known technology of the person skilled in the art.

[0029] Finally, it should be noted that the above detailed description is merely intended to illustrate the technical solutions of the present application, rather than limit the present application. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be included in the scope of the claims of the present application.

Claims

1. An apparatus for testing the tear resistance of a flexible seal under high pressure conditions, characterized by: Including the tank body (1), the tank cover (2) and the piston (3); The bottom of the tank body (1) is provided with a bottom plate (4), a gas outlet observation hole (5) is formed at the center position of the bottom plate (4), a slope (6) is arranged in the tank body (1), a compression ring (7) is arranged in the tank body (1) and located at the slope (6), and the outer edge of the compression ring (7) is tightly matched with the slope (6); The tank cover (2) is arranged on the upper surface of the tank body (1), a gas inlet hole (8) is formed at the center position of the tank cover (2), a gas inlet pipe (9) is arranged on the lower surface of the tank cover (2) and located at the gas inlet hole (8), and the gas inlet pipe (9) is arranged in the tank body (1) and passes through the compression ring (7); The upper surface of the piston (3) is open, the piston (3) is movably arranged at the lower end of the tank body (1), an inner cylinder (10) is arranged on the inner side of the piston (3), a plurality of screw holes are uniformly formed in the upper part of the inner cylinder (10), a locking screw (11) is arranged at each screw hole of the inner cylinder (10), an arc-shaped pressing plate (12) is arranged on the outer end of the locking screw (11) through bolts, a mark rod (13) is arranged on the bottom of the piston (3), and the mark rod (13) passes through the gas outlet observation hole (5) formed in the bottom plate (4).

2. The test device for testing the tear resistance of a flexible seal under high pressure according to claim 1, characterized in that The tank cover (2) is connected with the top of the tank body (1) through bolts and nuts.

3. The test device for testing the tear resistance of a flexible seal under high pressure according to claim 1, characterized in that: The outer edge of the lower surface of the compression ring (7) is chamfered, and a plurality of handles (14) are arranged on the upper surface of the compression ring (7).

4. The test device for testing the tear resistance of a flexible seal under high pressure according to claim 1, characterized in that: A plurality of connecting rings (15) are arranged between the inner wall of the piston (3) and the inner cylinder (10) through bolts, and a reinforcing plate (16) is arranged at the connection between the bottom of the inner cylinder (10) and the piston (3).

5. The test device for testing the tear resistance of a flexible seal under high pressure conditions according to claim 1, characterized in that: The outer end of the locking screw (11) is provided with an outer hexagonal head (17).

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