Angle valve airtightness testing device

Abstract

The utility model relates to an angle valve airtightness testing device, and mainly relates to the technical field of valve testing, the angle valve airtightness testing device comprises a fixing seat and a sleeve, the sleeve sleeves a valve body on the periphery of a water inlet of an angle valve, and a buffer connecting piece is detachably installed between the sleeve and a boss of the valve body. The fixing seat is provided with an air vent communicated with an output port of a pressure testing machine, the fixing seat is provided with an installation groove in the periphery of the air vent, the sleeve is adjustably arranged in the installation groove in the axis direction of a water inlet of the angle valve, a first sealing ring is arranged in the installation groove, the first sealing ring is provided with a communication port, and the communication port is communicated with the air vent. And two ends of the communicating port are respectively communicated with the angle valve water inlet and the ventilation port. The angle valve air tightness testing device can solve the problem that in the process of carrying out air tightness testing on an angle valve, a boss is arranged at the water inlet of the angle valve, so that a pressure testing machine cannot be smoothly connected into the water inlet of the angle valve, and the testing accuracy and efficiency are affected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve testing, in particular to an angle valve air tightness testing device. BACKGROUND

[0002] The angle valve is commonly used in the water heating pipeline of a family, and the sealing property of the angle valve in a closed state directly affects the stability and reliability of the angle valve in daily use. In order to ensure the reliability of the angle valve, the air tightness of the angle valve needs to be tested by a manufacturer before the angle valve is shipped.

[0003] Generally, a boss is arranged at the water inlet of the angle valve, which can be used as a supporting surface of a sealing gasket or rubber ring, so that the sealing gasket or rubber ring is not excessively deformed or only deformed when the sealing gasket or rubber ring is compressed, thereby improving the sealing property. During the testing of the air tightness of the angle valve by using a pressure testing machine, the arrangement of the boss may cause the pressure testing machine to fail to be smoothly connected to the water inlet of the angle valve, thereby affecting the accuracy and efficiency of the testing. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the arrangement of the boss at the water inlet of the angle valve causes the pressure testing machine to fail to be smoothly connected to the water inlet of the angle valve during the testing of the air tightness of the angle valve, thereby affecting the accuracy and efficiency of the testing, the application provides an angle valve air tightness testing device.

[0005] The application provides an angle valve air tightness testing device, which adopts the following technical scheme:

[0006] The angle valve air tightness testing device comprises a sleeve and a fixing base, the sleeve is sleeved on a valve body on the periphery of a water inlet of an angle valve, a buffer connecting piece is detachably arranged between the sleeve and a boss of the valve body, the fixing base is provided with a ventilation opening which is connected to an output opening of a pressure testing machine, the fixing base is provided with a mounting groove on the periphery of the ventilation opening, the sleeve is adjustably arranged in the mounting groove along the axis direction of the water inlet of the angle valve, the mounting groove is provided with a first sealing ring, the first sealing ring is provided with a communication opening, and the two ends of the communication opening are connected to the water inlet of the angle valve and the ventilation opening, respectively.

[0007] By adopting the above technical scheme, when the sleeve is close to the fixing base along the axis direction of the water inlet of the angle valve in the mounting groove of the fixing base, the sleeve drives the angle valve to move towards the fixing base under the action of the boss and the buffer connecting piece, so that the water inlet of the angle valve is pressed against the first sealing ring in the mounting groove, and the water inlet of the angle valve and the ventilation opening are connected through the communication opening on the first sealing ring, thereby completing the sealing between the water inlet of the angle valve and the fixing base, the pressure testing machine is connected to the ventilation opening to realize the testing of the air tightness of the angle valve; during the testing, the water inlet of the angle valve is always pressed against the first sealing ring, thereby ensuring the sealing property between the pressure testing machine and the water inlet of the angle valve, so as to improve the accuracy and efficiency of the testing of the air tightness of the angle valve.

[0008] Preferably, an outer thread is formed on the outer wall of the sleeve along the axial direction of the sleeve, and an inner thread is formed on the side wall of the mounting groove, the inner thread and the outer thread are matched to enable the fixed seat and / or the sleeve to move along the axial direction of the water inlet of the angle valve.

[0009] By using the above technical scheme, the inner thread of the inner wall of the mounting groove and the outer thread of the outer wall of the sleeve are matched to enable the fixed seat and the sleeve to be fixed, during the process of the fixed seat and the sleeve approaching each other, the water inlet of the angle valve abuts against the first sealing ring in the mounting groove, and the fixed seat exerts a pulling force on the sleeve, so that the sleeve approaches the fixed seat, the sleeve extrudes the buffer connecting piece, the buffer connecting piece transmits the force to the boss of the angle valve, thereby the stability of the relative fixation between the sleeve and the fixed seat is enhanced by the first sealing ring and the buffer connecting piece, to ensure the stability of the air tightness test of the angle valve.

[0010] Preferably, an abutting plate for mounting the pressure tester is fixedly installed at the air vent of the fixed seat, and a second sealing ring is fixedly installed on the abutting plate.

[0011] By using the above technical scheme, the abutting plate is used to mount the fixed seat and the pressure tester, and the second sealing ring is used to ensure the sealing property at the connection between the pressure tester and the fixed seat, thereby ensuring the accuracy of the air tightness test of the angle valve.

[0012] Preferably, the buffer connecting piece includes at least two symmetrically arranged buffer blocks.

[0013] By using the above technical scheme, since the boss of the angle valve has a large diameter, arranging the buffer connecting piece as at least two symmetrically arranged buffer blocks is helpful for the installation of the buffer connecting piece.

[0014] Preferably, the contact surfaces of two adjacent buffer blocks are respectively provided with a limiting block and a limiting groove, and the limiting block and the limiting groove are matched to enable the buffer connecting piece to be mounted.

[0015] By using the above technical scheme, the contact surfaces of two adjacent buffer blocks are respectively provided with a limiting block and a limiting groove, and the limiting block and the limiting groove are matched to enable the buffer connecting piece to be mounted.

[0016] Preferably, the mounting groove comprises a fixing groove and a placing groove arranged from top to bottom, the internal thread is arranged on the sidewall of the fixing groove, and the diameter of the fixing groove is greater than or equal to the diameter of the placing groove.

[0017] By adopting the technical scheme, the mounting groove is arranged as the fixing groove and the placing groove, the adjustment degree of the fixing seat is limited by the fixing groove, so as to avoid excessive extrusion of the first sealing ring and damage of the sealing ring; the position of the first sealing ring is limited by the placing groove, so as to avoid the first sealing ring from being deviated when the position between the fixing seat and the sleeve is adjusted, and to avoid the influence on the accuracy of the air tightness detection of the angle valve.

[0018] Preferably, the surface of the fixing seat is provided with anti-skid lines.

[0019] By adopting the technical scheme, the friction of the surface of the fixing seat is increased, and the relative position between the fixing seat and the sleeve is conveniently adjusted.

[0020] Preferably, the diameter of the communication port is less than or equal to the diameter of the water inlet of the angle valve.

[0021] By adopting the technical scheme, it is ensured that the first sealing ring can completely seal the water inlet of the angle valve, so as to ensure the accuracy of the air tightness detection of the angle valve.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the detachable buffer connecting piece between the sleeve and the valve body boss, the interference of the boss on the test pressure machine is effectively solved, the connection tightness in the test process is improved, and the accuracy of the air tightness test is improved;

[0024] 2. The sleeve is adjustably arranged in the mounting groove along the axis direction of the water inlet of the angle valve, and the stable communication of the gas passage is realized through the first sealing ring and the communication port, so as to ensure the adaptability and reliability of the test of different types of angle valves;

[0025] 3. The air vent on the fixing seat is in communication with the output port of the test pressure machine, and in combination with the sealing design in the mounting groove, gas leakage is avoided, and the test efficiency and operation convenience are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of the buffer connecting piece in the embodiment of the present application;

[0028] Figure 3 is a cross-sectional schematic diagram of the buffer connecting piece in the embodiment of the present application.

[0029] Label: 1, sleeve; 11, external thread; 2, fixed seat; 21, air vent; 22, mounting groove; 221, fixing groove; 222, placing groove; 23, internal thread; 24, anti-skid pattern; 3, buffer connector; 31, buffer block; 32, limiting groove; 33, limiting block; 4, first sealing ring; 41, communication port; 5, abutting block; 51, second sealing ring. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying drawings Figure 1 - the accompanying drawings Figure 3 The present application is further described in detail.

[0031] The embodiment of the present application discloses a kind of angle valve air tightness testing device.

[0032] Referring to Figure 1 An angle valve air tightness testing device includes a fixed seat 2 and a sleeve 1, the sleeve 1 is sleeved on the valve body of the water inlet peripheral side of the angle valve, and the buffer connector 3 is detachably installed between the sleeve 1 and the boss of the valve body, the fixed seat 2 is provided with an air vent 21 communicated with the pressure testing machine, and the fixed seat 2 is provided with a mounting groove 22 outside the peripheral of the air vent 21, the sleeve 1 is adjustably arranged in the mounting groove 22 along the axial direction of the water inlet of the angle valve, so that the sleeve 1 and the fixed seat 2 can approach and move away from each other, the first sealing ring 4 is arranged in the mounting groove 22, the first sealing ring 4 is provided with a communication port 41 for communicating the gas outlet and the water inlet of the angle valve, i.e. the two ends of the communication port 41 are communicated with the air vent 21 of the fixed seat 2 and the water inlet of the angle valve respectively, to form a channel for the pressure testing machine to test the air tightness of the angle valve, after the output port of the pressure testing machine is connected with the air vent 21, the air tightness of the angle valve can be tested.

[0033] Referring to Figure 1 The outer wall of the sleeve 1 is provided with an external thread 11 along the axial direction of the water inlet of the angle valve, and the side wall of the mounting groove 22 is provided with an internal thread 23 matched with the external thread 11, the sleeve 1 and the fixed seat 2 are approached by the cooperation of the external thread 11 and the internal thread 23, so as to realize the position adjustment of the sleeve 1 and the fixed seat 2, and the range of adjustment can be controlled by the cooperation of the internal thread 23 and the external thread 11.

[0034] Referring to Figure 1 The abutting plate for installing the pressure testing machine is fixedly installed at the air vent 21 of the fixed seat 2, and the second sealing ring 51 is fixedly installed on the abutting plate, the sealing property of the pressure testing machine when installed with the abutting plate is ensured by the second sealing ring 51, so as to avoid affecting the result of the air tightness test of the angle valve.

[0035] Referring to Figure 2The buffer connecting piece 3 is at least two symmetrically arranged buffer blocks 31, so as to set the buffer blocks 31 on the boss of the angle valve to fix the sleeve 1, and the contact surfaces of the adjacent two buffer blocks 31 are respectively provided with limiting blocks 33 and limiting grooves 32 matched with each other, the installation of the buffer connecting piece 3 is realized through the cooperation of the limiting blocks 33 and the limiting grooves 32, and the sealing can be formed, when the fixed seat 2 and the sleeve 1 are close to each other, under the limiting action of the boss of the angle valve, the sleeve 1 will extrude the buffer connecting piece 3, at this time, the buffer connecting piece 3 may be deformed, and under the cooperation of the limiting blocks 33 and the limiting grooves 32, even if the deformation occurs, the sealing effect of the buffer connecting piece 3 at the position is not affected.

[0036] With reference to Figure 1 The installation groove 22 includes a fixed groove 221 and a placing groove 222, the fixed groove 221 is located above the placing groove 222, and the internal thread 23 is arranged on the side wall of the fixed groove 221, so that the sleeve 1 can be adjusted in position in the fixed groove 221, and the fixed groove 221 can also limit the adjustment range between the fixed seat 2 and the sleeve 1, so as to prevent excessive adjustment from causing the buffer connecting piece 3 and / or the first sealing ring 4 to be excessively extruded and damaged, and the diameter of the fixed groove 221 is greater than or equal to the diameter of the placing groove 222, the fixed groove 221 limits the position of the first sealing ring 4, so as to ensure that the first sealing ring 4 will not be offset, thereby ensuring the accuracy of the air tightness detection of the angle valve.

[0037] With reference to Figure 1 The fixed seat 2 is provided with anti-skid lines 24 on the surface, and the friction is increased during the process of rotating the fixed seat 2 to fix the fixed seat 2 and the sleeve 1, so as to facilitate the operation.

[0038] With reference to Figure 3 The buffer connecting piece 3 can be arranged in a stepped shape, so that the contact area between the buffer connecting piece 3 and the valve body of the angle valve is increased, so that the sleeve 1 is more stable when moving the angle valve.

[0039] The implementation principle of the embodiment of the application is:

[0040] When the air tightness test of the corner valve is needed, the sleeve 1 is sleeved on the valve body around the water inlet of the corner valve and slides along the valve body, the buffer connecting piece 3 is sleeved on the position where the boss of the valve body is located, the sleeve 1 slides to the buffer connecting piece 3 and contacts with the buffer connecting piece 3, then the first sealing ring 4 matched with the air vent 21 and the water inlet of the corner valve is placed into the placing groove 222, the inner thread 23 on the inner wall of the fixing groove 221 and the outer thread 11 on the outer wall of the sleeve 1 are matched with each other, the fixed seat 2 is rotated to make the fixed seat 2 and the sleeve 1 close to each other, the force is transmitted to the boss of the corner valve through the buffer connecting piece 3 in the process that the sleeve 1 closes to the fixed seat 2, so that the corner valve is driven to close to the fixed seat 2, the water inlet of the corner valve abuts on the first sealing ring 4, then the pressure testing machine is communicated with the air vent 21 of the fixed seat 2, the fixed seat 2 and the pressure testing machine are installed through the abutting plate, the sealing property of the connection between the fixed seat 2 and the pressure testing machine is ensured by the second sealing ring 51, then the other water inlets of the corner valve are related, the corner valve is pressurized by the pressure testing machine, the pressure testing machine is closed after being pressurized to the test pressure, whether the pressure gauge of the pressure testing machine changes is observed, so that the air tightness test of the corner valve is completed.

[0041] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A device for testing the air tightness of a corner valve, characterized in that: The utility model provides a kind of pressure test device, including sleeve (1) and fixed seat (2), the sleeve (1) is sleeved on the valve body of the peripheral side of angle valve water inlet, detachable installation is equipped with buffer connecting piece (3) between the sleeve (1) and the boss of valve body, the fixed seat (2) is equipped with air vent (21) being communicated with the output port of pressure test machine, the fixed seat (2) is located and is equipped with installation groove (22) in the peripheral of the air vent (21), the sleeve (1) is adjustably arranged in the installation groove (22) along the axial direction of angle valve water inlet, first sealing ring (4) is equipped in the installation groove (22), the first sealing ring (4) is equipped with communication port (41), and the both ends of the communication port (41) are communicated with angle valve water inlet and the air vent (21) respectively.

2. The device of claim 1, wherein: The outer wall of the sleeve (1) is equipped with external thread (11) along the axial direction of sleeve (1), the side wall of the installation groove (22) is equipped with internal thread (23) matched with the external thread (11), and the internal thread (23) and the external thread (11) are matched to make the fixed seat (2) and / or the sleeve (1) move along the axial direction of angle valve water inlet.

3. The device of claim 1, wherein: The air vent (21) of the fixed seat (2) is fixedly installed with abutting plate for being communicated with the output port of pressure test machine, and the second sealing ring (51) is fixedly installed on the abutting plate.

4. The device of claim 1, wherein: The buffer connecting piece (3) includes at least two symmetrically arranged buffer blocks (31).

5. A device for testing the gas tightness of a corner valve according to claim 4, characterized in that: The contact surfaces of two adjacent buffer blocks (31) are respectively provided with limiting blocks (33) and limiting grooves (32), and the limiting blocks (33) and the limiting grooves (32) are matched with each other to realize the installation of the buffer connecting piece (3).

6. The air tightness testing device for angle valve according to claim 2, characterized in that: The installation groove (22) includes fixed groove (221) and placing groove (222) arranged from top to bottom, the internal thread (23) is arranged on the side wall of the fixed groove (221), and the diameter of the fixed groove (221) is greater than or equal to the diameter of the placing groove (222).

7. The device of claim 1, wherein: The surface of the fixed seat (2) is provided with anti-skid lines (24).

8. The device of claim 1, wherein: The diameter of the communication port (41) is less than or equal to the diameter of angle valve water inlet.

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