Quick mounting device for internal leakage test of valve

Abstract

A rapid installation device for a valve internal leakage test comprises a supporting seat, a butt joint pipe and a push rod device, the supporting seat comprises a first supporting piece, a second supporting piece and a connecting piece connected between the first supporting piece and the second supporting piece, the first supporting piece is provided with a first installation hole, the butt joint pipe is installed in the first installation hole, and the push rod device is connected with the butt joint pipe. A butt joint ring is installed at the end, located on the second supporting piece, of the butt joint pipe, a second installation hole is formed in the second supporting piece, the push rod device is installed in the second installation hole or installed on the side, away from the first supporting piece, of the second supporting piece, a piston rod of the push rod device is a hollow rod, and a check ring is installed at the end, facing the butt joint ring, of the piston rod. The sealing ring is sleeved on the piston rod and abuts against the check ring, the sealing ring is aligned with the butt joint ring, and the other end of the piston rod is provided with external threads. Through the above structure, rapid assembly and disassembly of the valve during a test are realized, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, in particular to a quick installation device for valve internal leakage test. Background Art

[0002] Valves used in important places in hydropower stations need to be tested for internal leakage before they are put into use. At present, during the test, the joint with the flange needs to be connected to the valve through bolts, and the joint is connected to the hydraulic hose. During the test, the valve is closed and pressure is applied to the hydraulic hose through the pump station to test the internal leakage of the valve. Since the joint and the valve are connected by bolts, the bolts need to be repeatedly installed and removed before and after the test, and the test efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, to provide a rapid installation device for valve internal leakage test, to achieve rapid assembly and disassembly of the valve during the test, and to improve the test efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a valve internal leakage test quick installation device, including a support seat, a butt joint tube and a push rod device, the support seat includes a first support member and a second support member, and a connecting member connected between the first support member and the second support member, a first mounting hole is provided on the first support member, the butt joint tube is installed in the first mounting hole, a butt joint ring is installed at one end of the butt joint tube located on the second support member, a second mounting hole is provided on the second support member, the push rod device is installed in the second mounting hole or on the side of the second support member away from the first support member, the piston rod of the push rod device is a hollow rod, a retaining ring is installed at one end of the piston rod facing the butt joint ring, a sealing ring is sleeved on the piston rod and abuts against the retaining ring, the sealing ring is aligned with the butt joint ring, and an external thread is provided at the other end of the piston rod; wherein, when the push rod device is installed on the side of the second support member away from the first support member, the piston rod at the end where the sealing ring is installed passes through the second mounting hole.

[0005] The support seat also includes a base, and the first support member and the second support member are fixedly mounted on the base.

[0006] The butt-joint ring is provided with a sealing member on the end surface facing the push rod device.

[0007] The push rod device is a cylinder or a hydraulic cylinder.

[0008] A supporting member is installed on one side of the first supporting member and the second supporting member opposite to each other, and the two supporting members are respectively located at the lower side of the first mounting hole and the second mounting hole.

[0009] A semicircular hole is arranged on the top of the first support member, a semi-ring is installed on the top of the first support member through bolts, and the first installation hole is composed of the semicircular hole and the semi-ring.

[0010] The utility model has the following beneficial effects:

[0011] 1. The first support member of the utility model is used to install and fix the butt joint pipe, and a butt joint ring is installed at one end of the butt joint pipe located at the second support member. The second support member is used to install a push rod device. The piston rod of the push rod device is a hollow rod. A retaining ring and a sealing ring are installed at one end of the piston rod facing the butt joint ring. The valve is placed between the first support member and the second support member, and the interface of the valve is aligned with the butt joint ring and the sealing ring. The push rod device is connected to a hydraulic station or a compressed air source, and the piston rod is controlled to extend toward one side of the valve until the sealing ring abuts against the interface of the valve, thereby fixing the valve between the butt joint ring and the sealing ring. At this time, due to the pressure of the piston rod, the interfaces at both ends of the valve are sealed with the butt joint ring and the piston rod respectively, thereby realizing rapid installation of the valve. When disassembling, the piston rod of the push rod device is controlled to move to the left, thereby loosening the valve, thereby realizing rapid disassembly of the valve.

[0012] 2. The utility model provides a lifting piece, and when the valve is placed, the valve is placed on the lifting piece, the lifting piece supports the valve, and aligns the valve with the docking ring and the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in use.

[0015] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0016] Figure 3 for Figure 2 Schematic diagram of the AA section structure.

[0017] Figure 4 for Figure 2 Schematic diagram of the BB cross-section structure.

[0018] Figure 5 It is a schematic diagram of the butt-jointed pipe structure of the utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the push rod device of the utility model.

[0020] In the figure:

[0021] Support seat 10, base 11, first support member 12, second support member 13, connecting member 14, lifting member 15, first mounting hole 16, half ring 17, second mounting hole 18;

[0022] Butt pipe 20, butt ring 21, seal 22;

[0023] Push rod device 30, piston rod 31, retaining ring 32, external thread 33, sealing ring 34;

[0024] Valve 40 , hydraulic hose 50 . DETAILED DESCRIPTION

[0025] See also Figure 1-6 A quick installation device for valve internal leakage test, comprising a support seat 10, a butt joint pipe 20 and a push rod device 30, wherein the support seat 10 comprises a first support member 12 and a second support member 13, and a connecting member 14 connected between the first support member 12 and the second support member 13, a first mounting hole 16 is arranged on the first support member 12, the butt joint pipe 20 is installed in the first mounting hole 16, a butt joint ring 21 is installed at one end of the butt joint pipe 20 located at the second support member 13, a second mounting hole 18 is arranged on the second support member 13, and the push rod device 30 is installed in the first mounting hole 16. The push rod device 30 is installed in the second mounting hole 18 or on the side of the second support member 13 away from the first support member 12. The piston rod 31 of the push rod device 30 is a hollow rod. A retaining ring 32 is installed at one end of the piston rod 31 facing the docking ring 21. The sealing ring 34 is sleeved on the piston rod 31 and abuts against the retaining ring 32. The sealing ring 34 is aligned with the docking ring 21. The other end of the piston rod 31 is provided with an external thread 33. When the push rod device 30 is installed on the side of the second support member 13 away from the first support member 12, the piston rod 31 is located at the end of the sealing ring 34 through the second mounting hole 18. Through the above structure, the valve can be quickly assembled and disassembled during testing, and the test efficiency is improved.

[0026] The first support member 12 is used to install and fix the butt joint pipe 20. The butt joint pipe 20 is installed with a butt joint ring 21 at one end of the second support member 13. The second support member 13 is used to install the push rod device 30. The piston rod 31 of the push rod device 30 is a hollow rod. The end of the piston rod 31 facing the butt joint ring 21 is installed with a retaining ring 32 and a sealing ring 34. When in use, the external thread 33 end of the piston rod 31 is connected to the hydraulic hose 50, and the hydraulic hose 50 is connected to the pressure supply system. The valve 40 is placed between the first support member 12 and the second support member 13, and the interface of the valve 40 is aligned with the butt joint ring 21 and the sealing ring 34. , an annular rubber pad is placed between the valve 40 and the docking ring 21 as a seal, the push rod device 30 is connected to the hydraulic station or the compressed air source, and the piston rod 31 is controlled to extend toward one side of the valve 40 until the sealing ring 34 abuts against the interface of the valve 40, thereby fixing the valve 40 between the docking ring 21 and the sealing ring 34. At this time, due to the pressure of the piston rod 31, the interfaces at both ends of the valve 40 are sealed with the docking ring 21 and the piston rod 31 respectively, thereby realizing the rapid installation of the valve. When disassembling, the piston rod 31 of the push rod device 30 is controlled to move to the left, thereby loosening the valve 40, thereby realizing the rapid disassembly of the valve.

[0027] Preferably, the sealing ring 34 is a rubber ring.

[0028] Furthermore, the support seat 10 also includes a base 11 , and the first support member 12 and the second support member 13 are welded and installed on the base 11 to improve the stability of the support seat 10 .

[0029] For further information, see Figure 5 The butt ring 21 is provided with a seal 22 on the end surface facing the push rod device 30, so as to facilitate sealing with the valve. Specifically, the seal 22 may be a rubber seal gasket, which is bonded to the butt ring 21 by glue; or the seal 22 may be an O-ring, and a ring groove is provided on the end surface of the butt ring 21, and the seal 22 is fixed in the ring groove by glue.

[0030] Specifically, the push rod device 30 is a cylinder or a hydraulic cylinder. The control of the cylinder or the hydraulic cylinder is a conventional pneumatic and hydraulic technical means, which will not be described in detail here.

[0031] See also Figure 1-4 The first support member 12 and the second support member 13 are respectively provided with a lifting member 15 on the opposite side thereof. The two lifting members 15 are respectively located at the lower side of the first mounting hole 16 and the second mounting hole 18. By providing the lifting member 15, when placing the valve, the valve 40 is placed on the lifting member 15, and the lifting member 15 supports the valve 40 and aligns the valve 40 with the docking ring 21 and the piston rod 31. Figure 3 , 4 The lifting member 15 is an arc-shaped push plate.

[0032] See also Figure 3 A semicircular hole is provided on the top of the first support member 12, and a semi-ring 17 is installed on the top of the first support member 12 by bolts. The first mounting hole 16 is composed of the semicircular hole and the semi-ring 17, which is convenient for installing the butt pipe 20.

[0033] The working principle or action process of the utility model is as follows:

[0034] When in use, the external thread 33 end of the piston rod 31 is connected to the hydraulic hose 50, and the hydraulic hose 50 is connected to the pressure supply system. The valve 40 is placed on the supporting member 15 of the first support member 12 and the second support member 13. At this time, the valve 40 is aligned with the docking ring 21 and the piston rod 31, and people only need to hold the valve.

[0035] The push rod device 30 is connected to the hydraulic station or the compressed air source to control the piston rod 31 to extend toward one side of the valve 40 until the sealing ring 34 abuts against the interface of the valve 40, thereby fixing the valve 40 between the docking ring 21 and the sealing ring 34. At this time, due to the pressure of the piston rod 31, the interfaces at both ends of the valve 40 are sealed with the docking ring 21 and the piston rod 31 respectively, thereby realizing the rapid installation of the valve. When disassembling, the piston rod 31 of the push rod device 30 is controlled to move to the left, thereby loosening the valve 40, thereby realizing the rapid disassembly of the valve.

Claims

1. Quick installation device for valve internal leakage test, Features: The invention comprises a support seat (10), a butt joint pipe (20) and a push rod device (30), wherein the support seat (10) comprises a first support member (12) and a second support member (13), and a connecting member (14) connected between the first support member (12) and the second support member (13); a first mounting hole (16) is provided on the first support member (12); the butt joint pipe (20) is installed in the first mounting hole (16); a butt joint ring (21) is installed at one end of the butt joint pipe (20) located on the second support member (13); a second mounting hole (18) is provided on the second support member (13); and the push rod device (30) is installed in the second mounting hole (18) or The push rod device (30) is mounted on a side of the second support member (13) away from the first support member (12); the piston rod (31) of the push rod device (30) is a hollow rod; a retaining ring (32) is mounted on one end of the piston rod (31) facing the docking ring (21); a sealing ring (34) is sleeved on the piston rod (31) and abuts against the retaining ring (32); the sealing ring (34) is aligned with the docking ring (21); and an external thread (33) is disposed on the other end of the piston rod (31); wherein, when the push rod device (30) is mounted on a side of the second support member (13) away from the first support member (12), the piston rod (31) is located at an end where the sealing ring (34) is mounted and passes through the second mounting hole (18).

2. The valve internal leakage test quick installation device according to claim 1, Features: The support seat (10) further comprises a base (11), and the first support member (12) and the second support member (13) are fixedly mounted on the base (11).

3. The valve internal leakage test quick installation device according to claim 1, Features: The butt ring (21) is provided with a sealing member (22) on the end surface facing the push rod device (30).

4. The valve internal leakage test quick installation device according to claim 1, Features: The push rod device (30) is a gas cylinder or a hydraulic cylinder.

5. The valve internal leakage test quick installation device according to claim 1, Features: A supporting member (15) is installed on one side opposite to the first supporting member (12) and the second supporting member (13), respectively. The two supporting members (15) are located at the lower side of the first mounting hole (16) and the lower side of the second mounting hole (18), respectively.

6. The valve internal leakage test quick installation device according to claim 1, Features: A semicircular hole is provided on the top of the first support member (12); a semi-ring (17) is mounted on the top of the first support member (12) via bolts; and the first mounting hole (16) consists of the semicircular hole and the semi-ring (17).

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