Pressure-bearing film type series water pressure device

Abstract

The utility model relates to the field of water pressure test tools, and discloses a pressure-bearing film type series water pressure device, which comprises a wall pipe and screw seat connecting pieces, the screw seat connecting pieces are inserted into two ends of the wall pipe, and each screw seat connecting piece comprises a connecting pipe, an inner plug, a limiting plate, a mounting groove, a sealing gasket and a sealing ring; the locking ring is arranged on the outer ring of the limiting plate in a sleeving manner; the threaded straight-through piece is in threaded connection with the interior of the side, away from the wall pipe, of the screw base connecting piece; the same threaded caps are arranged at the two ends of the high-pressure hose. The screw seat connecting pieces capable of being flexibly inserted are installed at the two ends of the wall pipes, the screw seat connecting pieces are locked through the locking rings so that the screw seat connecting pieces can be fixed to the wall pipes, the ends, away from the wall pipes, of the screw seat connecting pieces are connected with the high-pressure hose through the threaded straight-through pieces, and the two ends of the high-pressure hose are connected with the different wall pipes respectively. The wall pipes can be connected in series, the multiple wall pipes can be subjected to hydrostatic tests at the same time, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure test tooling, in particular to a pressure-bearing membrane type series water pressure device. Background Art

[0002] In order to meet the product design requirements, it is necessary to test the pressure bearing capacity of the pipe body. The pipe water pressure test device is a special test device that uses the water injection pressurization method to test the pressure bearing capacity of the pipe body.

[0003] The existing hydraulic devices mainly use mechanical hydraulic expansion plugs to completely seal one end of a single branch pipe, and the other end is also sealed with a water-filled expansion plug and connected to a pressure water pump and a pressure gauge, and then a hydraulic test is performed. When performing a hydraulic test on a sub-high-pressure membrane wall, due to the high pressure, it is easy to cause the expansion plug to fail, the seal to leak, and even the expansion plug to fall off, collapse, and other unexpected situations. In addition, the efficiency of conducting hydraulic tests branch by branch is low. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pressure-bearing membrane type series water pressure device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a pressure-bearing membrane type series hydraulic device, comprising a wall tube, a thread seat connector, which is plugged at both ends of the wall tube, the thread seat connector comprising a connecting tube, an inner plug, a limiting plate, an installation groove, a sealing pad and a sealing ring, wherein the connecting tube and the wall tube are butted against each other, an inner thread is provided on the inner wall, the inner plug is connected to a side of the connecting tube close to the wall tube, the limiting plate is fixed to an outer wall of the connecting tube close to the inner plug, and an end away from the connecting tube is in an outward expansion shape, the installation groove is provided on a surface of an end of the inner plug away from the connecting tube, the sealing pad is clamped with the installation groove, a clamping groove is left between the inner plug and the limiting plate for convenient insertion of the end of the wall tube, and a sealing ring is placed inside the clamping groove;

[0007] A locking ring, sleeved on the outer ring of the limiting plate;

[0008] A threaded straight-through piece, threadedly connected to the inside of the wire seat connector on the side away from the wall tube;

[0009] High pressure hose, with identical threaded caps at both ends.

[0010] Furthermore, after several groups of wall tubes are connected in series through high-pressure hoses, reserved openings are provided at the ends of the remaining two groups of wall tubes, and one of the reserved openings is used as a water injection port.

[0011] Furthermore, a pressure gauge is connected at another set of reserved openings through a threaded through piece.

[0012] Furthermore, the position of the water injection port is connected to a pressure pump.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model installs flexible pluggable screw seat connectors at both ends of the wall pipe, and locks the screw seat connectors through a locking ring to fix the screw seat connectors to the wall pipe. At the end of the screw seat connector away from the wall pipe, a threaded straight-through piece is connected to a high-pressure hose, and both ends of the high-pressure hose are respectively connected to different wall pipes, enabling the series connection between groups of wall pipes, so that multiple groups of wall pipes can conduct a hydrostatic test simultaneously, improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front perspective structure diagram of the utility model;

[0016] Figure 2 is the side perspective structure diagram of the utility model;

[0017] Figure 3 is the disassembled structure diagram of the wall pipe and the screw seat connector in the utility model;

[0018] Figure 4 is the partial sectional structure diagram of the utility model;

[0019] The reference numerals in the drawings respectively represent: 1, wall pipe; 2, screw seat connector; 3, locking ring; 4, threaded straight-through piece; 5, high-pressure hose; 6, water injection port; 7, pressure gauge; 21, connecting pipe; 22, inner plug; 23, limiting plate; 24, installation groove; 25, sealing gasket; 26, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, including a wall tube 1, a wire seat connector 2, which is plugged into both ends of the wall tube 1, and the wire seat connector 2 includes a connecting tube 21, an inner plug 22, a limiting plate 23, an installation groove 24, a sealing gasket 25 and a sealing ring 26, wherein the connecting tube 21 and the wall tube 1 are butted against each other, and an inner thread is provided on the inner wall, and the inner plug 22 is connected to the side of the connecting tube 21 close to the wall tube 1, and the outer diameter of the inner plug 22 matches the inner diameter of the wall tube 1, and can be plugged into each other, and the limiting plate 23 is fixed to the outer wall of the connecting tube 21 close to the inner plug 22, and the end away from the connecting tube 21 is outwardly expanded, and the outer surface of the limiting plate 23 is provided with an outer thread, and the inner wall is provided with anti-slip patterns, and the limiting plate 2 3 is provided with an active groove on the outer wall. When the connecting tube 21 is plugged into the wall tube 1, the limiting plate 23 is wrapped around the outer ring of the wall tube 1 as the connecting tube 21 moves. The mounting groove 24 is provided on the surface of one end of the inner plug 22 away from the connecting tube 21. The sealing gasket 25 is engaged with the mounting groove 24, so as to be movably connected with the wire seat connector 2. When the inner plug 22 is inserted into the wall tube 1, the gap between the inner wall of the wall tube 1 and the outer wall of the inner plug 22 can be sealed by the sealing gasket 25. There is a slot between the inner plug 22 and the limiting plate 23 for convenient plugging of the end of the wall tube 1. A sealing ring 26 is placed inside the slot. When the wire seat connector 2 is plugged into the wall tube 1, the end of the wall tube 1 The sealing ring 26 is squeezed on the part, so that the connection part between the wall tube 1 and the wire seat connector 2 is sealed; the locking ring 3 is sleeved on the outer ring of the limiting plate 23, and the inner wall of the locking ring 3 is provided with an internal thread, which matches the external thread of the limiting plate 23. The locking ring 3 is rotated on the surface of the limiting plate 23 to move the locking ring 3 toward the wall tube 1, so that the limiting plate 23 expanded outward is contracted inwardly. After the limiting plate 23 is contracted, the inner wall fits the outer wall of the wall tube 1. Through the continuous rotation of the locking ring 3, the limiting plate 23 squeezes and clamps the outer wall of the wall tube 1 to ensure the tightness of the connection between the wire seat connector 2 and the wall tube 1, and the limiting plate 23 is provided with a The anti-slip pattern can improve the anti-separation property of the wire seat connector 2 and the wall tube 1, and reduce the possibility of the wire seat connector 2 and the wall tube 1 being separated during the water pressure test. The wall tube 1 and the wire seat connector 2 can be quickly assembled by plugging the wire seat connector 2 and the wall tube 1 and then clamping the locking ring 3, which is convenient for the staff to disassemble and assemble; the threaded straight-through piece 4 is threadedly connected to the inside of the side of the wire seat connector 2 away from the wall tube 1; the high-pressure hose 5 is provided with the same threaded caps at both ends, which are connected and fixed to the side of the threaded straight-through piece 4 away from the wire seat connector 2 through the threaded cap, and the two ends of the high-pressure hose 5 are respectively connected to different wall tubes 1, so that multiple groups of wall tubes 1 are connected in series.

[0022] After several groups of wall pipes 1 are connected in series through high-pressure hoses 5, reserved ports are arranged at the ends of the remaining two groups of wall pipes 1, and one of the reserved ports is used as the water injection port 6. A pressure gauge 7 is connected through a threaded straight-through part 4 at the position of the other reserved port. A pressure pump is connected to the position of the water injection port 6. The prefabricated and recyclable wire seat connectors 2 are assembled to both ends of the wall pipe 1 in advance. After the wire seat connectors 2 are assembled, the high-pressure hoses 5 are connected in series to the wire seat connectors 2 according to the plan. After the connection is completed, a pressure pump and a pressure gauge 7 are installed at the position of the water injection port 6 at the end of the wall pipe 1, and a hydrostatic test is carried out. After the test is completed, the locking ring 3 is rotated in the reverse direction to loosen the clamping of the wall pipe 1 by the wire seat connector 2, which facilitates the detachment of the wall pipe 1 from the wire seat connector 2, so that the wire seat connector 2 can be recycled. This device can conduct the hydrostatic test for the entire row or multiple rows simultaneously, improving the efficiency. And the safety performance is guaranteed.

[0023] Working principle: When conducting a hydrostatic test on multiple groups of wall pipes 1, the two ends of the wall pipe 1 are inserted into the wire seat connector 2, so that the inner plug 22 is inserted into the interior of the wall pipe 1 as a connecting plug. After the inner plug 22 is inserted into the wall pipe 1, the limiting plate 23 wraps around the outer wall of the wall pipe 1 as the inner plug 22 moves. The locking ring 3 moves towards the wall pipe 1 and rotates on the outer circle of the limiting plate 23 to clamp the inner plug 22 on the outer wall of the wall pipe 1, so that the inside and outside of the wall pipe 1 are clamped by the inner plug 22 and the locking ring 3. The anti-slip threads provided on the inner wall of the limiting plate 23 further ensure the anti-detachment property of the wall pipe 1 and the wire seat connector 2 when the pressure is too high. After the wall pipe 1 is connected to the wire seat connector 2, it is connected to the other end of the wire seat connector 2 through a threaded straight-through part 4. One end of the high-pressure hose 5 is connected to the wall pipe 1 through a threaded straight-through part 4, and the other end of the high-pressure hose 5 is connected to another group of wall pipes 1 through a threaded straight-through part 4 to realize the series connection between the two groups of wall pipes 1. The high-pressure hoses 5 are used to connect multiple groups of wall pipes 1 according to the schematic diagram. A pressure pump and a pressure gauge 7 are installed at the reserved port position of the wall pipe 1 to apply pressure to the wall pipe 1, so that multiple groups of wall pipes 1 can complete the hydrostatic test at one time, improving the test efficiency. After the test is completed, the wire seat connector 2 can be disassembled from the wall pipe 1, so that the wire seat connector 2 can be recycled.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-bearing membrane type series hydraulic device, comprising a wall tube (1), It is characterized in that Also included are: The wire seat connector (2) is plugged into the two ends of the wall tube (1). The wire seat connector (2) comprises a connecting tube (21), an inner plug (22), a limiting plate (23), a mounting groove (24), a sealing gasket (25) and a sealing ring (26). The connecting tube (21) and the wall tube (1) are butted against each other. The inner wall is provided with an inner thread. The inner plug (22) is connected to the side of the connecting tube (21) close to the wall tube (1). The limiting plate (23) is fixed to the outer wall of the connecting tube (21) close to the inner plug (22). The end away from the connecting tube (21) is in an outwardly expanding shape. The mounting groove (24) is provided on the surface of the end of the inner plug (22) away from the connecting tube (21). The sealing gasket (25) is clamped with the mounting groove (24). A clamping groove for convenient insertion of the end of the wall tube (1) is left between the inner plug (22) and the limiting plate (23). A sealing ring (26) is placed inside the clamping groove. A locking ring (3) is sleeved on the outer ring of the limiting plate (23); A threaded straight-through piece (4) is threadedly connected to the inside of the wire seat connector (2) on a side away from the wall tube (1); The high-pressure hose (5) is provided with identical threaded caps at both ends.

2. The pressure-bearing membrane type series hydraulic pressure device according to claim 1, characterized in that: After a plurality of groups of wall tubes (1) are connected in series via a high-pressure hose (5), reserved openings are provided at the ends of the remaining two groups of wall tubes (1), and one of the reserved openings is used as a water injection port (6).

3. The pressure-bearing membrane type series water pressure device according to claim 1, wherein: A pressure gauge (7) is connected to another set of reserved openings via a threaded through piece (4).

4. The pressure-bearing membrane type series water pressure device according to claim 1, characterized in that: The water injection port (6) is connected to a pressure pump.

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