High-pressure stop valve of oil well pipe water pressure testing machine

Abstract

The utility model belongs to the technical field of high-pressure stop valves, and particularly relates to a high-pressure stop valve of an oil well pipe water pressure testing machine, which comprises a valve body, a liquid inlet pipe fixedly connected in the valve body, a liquid outlet pipe fixedly connected in the valve body, a valve rod arranged in the valve body, a rotating disc fixedly connected at the upper end of the valve rod, and a pressure sensor fixedly connected at the lower end of the rotating disc. The inner wall of the valve rod is connected with a screw rod through threads, the lower end of the screw rod is fixedly connected with a plugging disc, the plugging disc is in sliding connection with the valve body, and the plugging disc is in sliding connection with the liquid inlet pipe. According to the scheme, the installation disc can be limited by pushing the installation disc to be inserted into the liquid inlet pipe under the structures of an insertion rod, a spring and the like, rapid installation and use by an operator are facilitated, impurities of high-speed fluid can be filtered out under the action of a filter screen, and under the action of a rotating blade, a rotating rod can drive bristles to rotate to clean the filter screen, so that the operation is convenient, and the practicability is high. And the circulation effect of the filter screen is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure stop valves, and in particular relates to a high-pressure stop valve for an oil well pipe water pressure tester. Background Art

[0002] The high pressure stop valve of the oil well pipe water pressure test machine is a device used to control the flow of high pressure liquid. It is usually installed on the pipeline of the oil well pipe water pressure test machine and is used to close or open the pipeline when it is necessary to stop or adjust the flow of liquid. The main function of the high pressure stop valve is to quickly cut off the flow of liquid in an emergency to ensure the safety of equipment and personnel.

[0003] A utility model patent with the patent authorization announcement number CN221120954U discloses a high-pressure stop valve for an oil well pipe water pressure test machine, including a valve body, a valve ball, a compression spring, a connector and a drive mechanism. An installation channel that runs through the upper end of the valve body is provided, and a liquid inlet connected to the installation channel is provided on the left side of the upper part of the valve body.

[0004] However, the existing high-pressure stop valves for oil well pipe water pressure testers also have certain shortcomings. The existing high-pressure stop valves for oil well pipe water pressure testers mostly use straight-through liquid inlet pipes to circulate high-speed fluids. Due to the influence of impurities in the fluid, long-term use will not only cause wear problems of the valve body, but also have adverse effects on subsequent equipment. Summary of the invention

[0005] The utility model aims to provide a high-pressure stop valve for an oil well pipe water pressure tester, which solves the problem that the existing high-pressure stop valves for oil well pipe water pressure testers mostly use straight-through liquid inlet pipes to circulate high-speed fluids, and due to the influence of impurities in the fluid, long-term use will not only cause wear of the valve body, but also have adverse effects on subsequent equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a high-pressure stop valve for an oil well pipe water pressure tester, comprising a valve body, a liquid inlet pipe is fixedly connected to the interior of the valve body, a liquid outlet pipe is fixedly connected to the interior of the valve body, a valve stem is arranged inside the valve body, a rotating disk is fixedly connected to the upper end of the valve stem, a screw is threadedly connected to the inner wall of the valve stem, a blocking disk is fixedly connected to the lower end of the screw, the blocking disk is slidably connected to the valve body, and the blocking disk is slidably connected to the liquid inlet pipe;

[0007] A guide sleeve is fixedly connected to the inner top of the valve body, a guide rod is slidably connected to the inner wall of the guide sleeve, the guide rod is fixedly connected to the sealing disk, a connecting piece is bonded to the inner wall of the liquid inlet pipe, a connecting block is bonded to the inner wall of the connecting groove of the connecting piece, a sealing ring is bonded to the end face of the connecting block, the sealing ring is bonded to the connecting piece, the sealing ring is slidably connected to the annular groove of the sealing disk, and a filtering mechanism is arranged on the liquid inlet pipe.

[0008] The principle of the utility model is: by pushing the rotating disk to rotate, the valve stem is driven to rotate, and under the relationship of threaded connection, the screw rod can be driven to move, and then the blocking disk is driven to move, and when the blocking disk moves, the guide rod can be driven to move along the inner wall of the guide cylinder. Under the action of the guide rod and the guide cylinder, the blocking disk can be guided to ensure the stable movement of the blocking disk, so that the blocking disk is separated from the sealing ring and then from the liquid inlet pipe, and the valve body is opened and closed. Under the action of the connecting piece and the connecting block, the sealing ring can be reinforced, avoiding the problem of weak tear resistance of the sealing ring caused by single-point extrusion fixation in the prior art;

[0009] By pulling the insertion rod to move to the right, the spring is deformed under the action of the installation tube, and then the rotating rod is pushed to drive the installation disk to move, so that the installation disk is inserted into the liquid inlet pipe, and the insertion rod is loosened to allow the spring to recover its deformation, so that the insertion rod is pulled to insert the installation disk, and the installation disk is plugged in, which is convenient for the operator to quickly install and use;

[0010] Under the action of the filter, the medium in the high-speed fluid can be filtered out, and the rotating blade can drive the rotating rod to rotate under the impact of the high-speed fluid, so as to drive the connecting plate to rotate, and then drive the bristles to rotate, so that the bristles move along the surface of the filter to clean the impurities attached to the filter to ensure the circulation effect of the filter.

[0011] The beneficial effects of the present utility model are as follows: the present scheme can drive the valve stem to rotate through the setting of the turntable, and the sealing disk can be moved under the relationship of the threaded connection, and the movement of the sealing disk can be ensured to be stable under the action of the guide rod and the guide cylinder, so that the valve body is in an open and closed state, and the sealing ring can be firmly bonded under the action of the connecting piece and the connecting block to ensure the sealing effect of the sealing ring, avoiding the problem of weak tearing resistance of the sealing ring caused by single-point extrusion fixation in the prior art, and the installation disk can be pushed into the liquid inlet pipe. Under the structure of the insertion rod, the installation disk can be limited, which is convenient for the operator to quickly install and use, and under the action of the filter, the high-speed fluid can be filtered out of impurities, and under the action of the rotating blades, the rotating rod can drive the bristles to rotate to clean the filter to ensure the circulation effect of the filter.

[0012] Furthermore, two guide cylinders are provided, and the two guide cylinders are symmetrically distributed on the valve body. Through the provision of the guide cylinders, the guide rod can be installed and used, and then the blocking disk can be moved and guided.

[0013] Furthermore, a plurality of the connecting blocks are provided, and the plurality of connecting blocks are evenly distributed on the connecting sheet. The provision of the connecting blocks can improve the connection stability of the sealing ring.

[0014] The filtrating mechanism further comprises a mounting plate, the inner wall of the liquid inlet pipe is slidably connected to the mounting plate, the inner wall of the mounting plate is fixedly connected to the filter screen, the interior of the mounting plate is provided with a rotating rod through a bearing, the surface of the rotating rod and the upper side of the mounting plate are fixedly connected to a rotating blade, the surface of the rotating rod and the lower side of the mounting plate are fixedly connected to a connecting plate, the upper end of the connecting plate is fixedly connected to bristles, and the bristles contact the filter screen, the right side of the liquid inlet pipe is fixedly connected to a mounting cylinder, the inner wall of the mounting cylinder is slidably connected to a plug rod, the horizontal part of the plug rod is slidably connected to the liquid inlet pipe, the horizontal part of the plug rod is slidably connected to the mounting plate, a spring is arranged on the outer side of the horizontal part of the plug rod, and the mounting plate can be plugged in under the action of the spring, the plug rod and other structures, and under the action of the filter screen, impurities in high-speed circulation can be filtered out, and the filter screen can be cleaned under the rotating blades, the rotating rod, the bristles and other structures to ensure the circulation effect of the filter screen.

[0015] Furthermore, four filter screens are provided, and the four filter screens are arranged in a circular array on the mounting plate. Through the arrangement of the filter screens, high-speed fluid can be filtered.

[0016] Furthermore, a plurality of rotating blades are provided, and the plurality of rotating blades are arranged in a ring array on the rotating rod. Through the arrangement of the rotating blades, when the rotating blades are impacted by a high-speed fluid, the rotating rod can be driven to rotate.

[0017] Furthermore, one end of the spring is welded to the vertical portion of the insertion rod, and the other end of the spring is welded to the mounting tube. Through the arrangement of the spring, the insertion rod can be connected for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the overall structure of the high-pressure stop valve of the oil well pipe water pressure tester according to an embodiment of the present invention;

[0019] Figure 2 The high pressure stop valve of the oil well pipe water pressure tester according to the embodiment of the present invention Figure 1 A bottom-up stereogram of

[0020] Figure 3 The high pressure stop valve of the oil well pipe water pressure tester according to the embodiment of the present invention Figure 1 A front cross-sectional view of

[0021] Figure 4 The high pressure stop valve of the oil well pipe water pressure tester according to the embodiment of the present invention Figure 3 A magnified view of the filtering mechanism;

[0022] Figure 5 The high pressure stop valve of the oil well pipe water pressure tester according to the embodiment of the present invention Figure 3 Enlarged view of point A.

[0023] The figure marks in the drawings of the specification include: valve body 1, liquid inlet pipe 2, liquid outlet pipe 3, valve stem 4, turntable 5, screw 6, sealing plate 7, guide cylinder 8, guide rod 9, connecting piece 10, connecting block 11, sealing ring 12, filtering mechanism 13, mounting plate 131, filter screen 132, rotating rod 133, rotating blade 134, connecting plate 135, bristles 136, mounting cylinder 137, plug rod 138, spring 139. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment provides a high-pressure stop valve for an oil well pipe water pressure tester, comprising a valve body 1, a liquid inlet pipe 2 is fixedly connected to the inside of the valve body 1, a liquid outlet pipe 3 is fixedly connected to the inside of the valve body 1, a valve stem 4 is arranged inside the valve body 1, a rotating disk 5 is fixedly connected to the upper end of the valve stem 4, a screw 6 is threadedly connected to the inner wall of the valve stem 4, a sealing disk 7 is fixedly connected to the lower end of the screw 6, the sealing disk 7 is slidably connected to the valve body 1, and the sealing disk 7 is slidably connected to the liquid inlet pipe 2;

[0026] A guide cylinder 8 is fixedly connected to the inner top of the valve body 1, a guide rod 9 is slidably connected to the inner wall of the guide cylinder 8, the guide rod 9 is fixedly connected to the sealing disk 7, a connecting piece 10 is bonded to the inner wall of the liquid inlet pipe 2, a connecting block 11 is bonded to the inner wall of the connecting groove of the connecting piece 10, a sealing ring 12 is bonded to the end face of the connecting block 11, the sealing ring 12 is bonded to the connecting piece 10, and the sealing ring 12 is slidably connected to the annular groove of the sealing disk 7.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, two guide cylinders 8 are provided, and the two guide cylinders 8 are symmetrically distributed on the valve body 1. Through the provision of the guide cylinders 8, the guide rod 9 can be installed and used, and then the sealing disk 7 can be moved and guided. There are multiple connecting blocks 11, and the multiple connecting blocks 11 are evenly distributed on the connecting piece 10. Through the provision of the connecting blocks 11, the connection stability of the sealing ring 12 can be improved.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a filter mechanism 13 is provided on the liquid inlet pipe 2, and the filter mechanism 13 includes a mounting plate 131, the inner wall of the liquid inlet pipe 2 is slidably connected with the mounting plate 131, the inner wall of the mounting plate 131 is fixedly connected with a filter screen 132, a rotating rod 133 is installed inside the mounting plate 131 through a bearing, a rotating blade 134 is fixedly connected to the surface of the rotating rod 133 and located on the upper side of the mounting plate 131, a connecting plate 135 is fixedly connected to the surface of the rotating rod 133 and located on the lower side of the mounting plate 131, and a bristle 136 is fixedly connected to the upper end of the connecting plate 135, and the bristle 136 contacts the filter screen 132, and the right side of the liquid inlet pipe 2 is fixed. It is connected to a mounting cylinder 137, and an insertion rod 138 is slidably connected to the inner wall of the mounting cylinder 137. The horizontal part of the insertion rod 138 is slidably connected to the liquid inlet pipe 2, and the horizontal part of the insertion rod 138 is slidably connected to the mounting plate 131. A spring 139 is arranged on the outer side of the horizontal part of the insertion rod 138. Under the action of the spring 139, the insertion rod 138 and other structures, the mounting plate 131 can be plugged in. Under the action of the filter screen 132, impurities in high-speed circulation can be filtered out, and under the structures of the rotating blades 134, the rotating rod 133, the brush 136 and other structures, the filter screen 132 can be cleaned to ensure the circulation effect of the filter screen 132.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, four filter screens 132 are provided, and the four filter screens 132 are arranged in a circular array on the mounting plate 131. Through the setting of the filter screens 132, high-speed fluid can be filtered. A plurality of rotating blades 134 are provided, and the plurality of rotating blades 134 are arranged in a circular array on the rotating rod 133. Through the setting of the rotating blades 134, when the rotating blades 134 are impacted by the high-speed fluid, the rotating rod 133 can be driven to rotate. One end of the spring 139 is welded to the vertical portion of the insertion rod 138, and the other end of the spring 139 is welded to the mounting tube 137. Through the setting of the spring 139, the insertion rod 138 can be connected for use.

[0030] The specific implementation process of the utility model is as follows: by pushing the rotating disk 5 to rotate, the valve stem 4 is driven to rotate. Under the relationship of threaded connection, the screw rod 6 can be driven to move, and then the blocking disk 7 is driven to move. When the blocking disk 7 moves, the guide rod 9 can be driven to move along the inner wall of the guide cylinder 8. Under the action of the guide rod 9 and the guide cylinder 8, the blocking disk 7 can be guided to ensure the stable movement of the blocking disk 7, so that the blocking disk 7 is separated from the sealing ring 12, and then separated from the liquid inlet pipe 2, and the valve body 1 is opened and closed. Under the action of the connecting piece 10 and the connecting block 11, the sealing ring 12 can be reinforced to avoid the problem of weak tear resistance of the sealing ring 12 caused by single-point extrusion fixation in the prior art;

[0031] By pulling the insertion rod 138 to move to the right, the spring 139 is deformed under the action of the installation tube 137, and then the rotating rod 133 is pushed to drive the installation disk 131 to move, so that the installation disk 131 is inserted into the liquid inlet pipe 2, and the insertion rod 138 is loosened to allow the spring 139 to recover its deformation, so as to pull the insertion rod 138 to insert the installation disk 131, and the installation disk 131 is plugged in, which is convenient for the operator to quickly install and use;

[0032] Under the action of the filter 132, the medium in the high-speed fluid can be filtered out, and the rotating blade 134 can drive the rotating rod 133 to rotate under the impact of the high-speed fluid, so as to drive the connecting plate 135 to rotate, and then drive the bristles 136 to rotate, so that the bristles 136 move along the surface of the filter 132 to clean the impurities attached to the filter 132 to ensure the circulation effect of the filter 132.

[0033] The present invention can drive the valve stem 4 to rotate by setting the turntable 5. Under the relationship of threaded connection, the sealing disk 7 can be moved. Under the action of the guide rod 9 and the guide cylinder 8, the movement of the sealing disk 7 can be guaranteed to be stable, so that the valve body 1 is in an open and closed state. Under the action of the connecting piece 10 and the connecting block 11, the sealing ring 12 can be firmly bonded to ensure the sealing effect of the sealing ring 12, so as to avoid the problem of weak tearing resistance of the sealing ring 12 caused by single-point extrusion fixation in the prior art. By pushing the mounting disk 131 to insert into the liquid inlet pipe 2, the mounting disk 131 can be limited by the structures of the insertion rod 138, the spring 139, etc., so as to facilitate the quick use of the operator. Under the action of the filter screen 132, the impurities of the high-speed fluid can be filtered out, and under the action of the rotating blade 134, the rotating rod 133 can drive the bristles 136 to rotate to clean the filter screen 132 to ensure the circulation effect of the filter screen 132.

[0034] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A high-pressure stop valve for an oil well pipe water pressure tester, comprising a valve body, characterized in that: The interior of the valve body is fixedly connected with a liquid inlet pipe, the interior of the valve body is fixedly connected with a liquid outlet pipe, a valve stem is arranged inside the valve body, the upper end of the valve stem is fixedly connected with a rotating disk, the inner wall of the valve stem is threadedly connected with a screw, the lower end of the screw is fixedly connected with a blocking disk, the blocking disk is slidably connected to the valve body, and the blocking disk is slidably connected to the liquid inlet pipe; A guide sleeve is fixedly connected to the inner top of the valve body, a guide rod is slidably connected to the inner wall of the guide sleeve, the guide rod is fixedly connected to the sealing disk, a connecting piece is bonded to the inner wall of the liquid inlet pipe, a connecting block is bonded to the inner wall of the connecting groove of the connecting piece, a sealing ring is bonded to the end face of the connecting block, the sealing ring is bonded to the connecting piece, the sealing ring is slidably connected to the annular groove of the sealing disk, and a filtering mechanism is arranged on the liquid inlet pipe.

2. The high pressure stop valve for oil well pipe water pressure tester according to claim 1 is characterized in that: Two guide cylinders are provided, and the two guide cylinders are symmetrically distributed on the valve body.

3. The high pressure stop valve for oil well pipe water pressure tester according to claim 1, characterized in that: A plurality of the connecting blocks are provided, and the plurality of the connecting blocks are evenly distributed on the connecting sheet.

4. The high pressure stop valve for oil well pipe water pressure tester according to claim 1, characterized in that: The filtering mechanism includes a mounting plate, the inner wall of the liquid inlet pipe is slidably connected to the mounting plate, the inner wall of the mounting plate is fixedly connected to the filter screen, a rotating rod is installed inside the mounting plate through a bearing, a rotating blade is fixedly connected to the surface of the rotating rod and located on the upper side of the mounting plate, a connecting plate is fixedly connected to the surface of the rotating rod and located on the lower side of the mounting plate, the upper end of the connecting plate is fixedly connected to bristles, and the bristles are in contact with the filter screen, a mounting cylinder is fixedly connected to the right side of the liquid inlet pipe, a plug rod is slidably connected to the inner wall of the mounting cylinder, the horizontal part of the plug rod is slidably connected to the liquid inlet pipe, the horizontal part of the plug rod is slidably connected to the mounting plate, and a spring is arranged on the outside of the horizontal part of the plug rod.

5. The high pressure stop valve for oil well pipe water pressure tester according to claim 4 is characterized in that: There are four filter screens, which are arranged in a circular array on the mounting plate.

6. The high-pressure stop valve for the oil well pipe water pressure tester according to claim 4, characterized in that: A plurality of rotating blades are provided, and the plurality of rotating blades are arranged in a ring array on the rotating rod.

7. The high-pressure stop valve for the oil well pipe water pressure tester according to claim 4, characterized in that: One end of the spring is welded to the vertical portion of the insertion rod, and the other end of the spring is welded to the mounting tube.

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