Novel ultrahigh-pressure sand control valve

Abstract

The utility model relates to the technical field of sand prevention valves, in particular to a novel ultrahigh-pressure sand prevention valve which comprises a sand prevention valve body, pipelines are installed on the two sides of the sand prevention valve body, the sand prevention valve body is in threaded connection with the pipelines through bolts, a clamping shell is arranged outside the connecting position of the sand prevention valve body and the pipelines in a sleeved mode, an inserting block is installed on the bottom face of one side of the clamping shell, and a clamping block is installed on the surface of the inserting block. An inserting groove is formed in the bottom face of the other side of the clamping shell, a straight groove is formed in the surface of one end of the inserting groove, a limiting groove is formed in the surface of the straight groove, a limiting block is movably inserted into the limiting groove, and a drawing column is installed on the surface of the limiting block; the sand control valve has the beneficial effects that through the simple structure, the stability of the connecting position can be enhanced, meanwhile, the clamping shell is convenient to disassemble, the disassembling time of the sand control valve is shortened, the maintenance period is shortened, the structure is simple and convenient, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of sand control valves, in particular to a new ultra-high pressure sand control valve. Background Art

[0002] A sand valve is a valve used to prevent sand and dust from entering pipelines. It typically features a tight closing mechanism that effectively blocks the intrusion of sand and dust. There are several types of valves, including butterfly valves and flap valves. These valves are designed to prevent sand and dust from entering pipelines, thereby preventing them from becoming clogged or wearing out. Sand valves are typically used in specific applications, such as pumping stations or water pipelines used in desert areas, and water pipelines used in agricultural irrigation systems.

[0003] In the prior art, the connection between the sand control valve and the pipeline is mostly connected by bolts, and a seal needs to be installed at the connection to ensure that the medium in the pipeline does not leak.

[0004] However, due to the working characteristics of the sand control valve, when it is closed, the pressure of the medium inside the pipeline will exert external force on the bolts at the connection, causing the threads on the outer surface of the bolts to wear, resulting in medium leakage at the connection. The usual solution is to install a protective shell at the connection between the sand control valve and the pipeline. Most of the common protective shells on the market are integrated structures, which are heavy in themselves and are fixed to the outside of the connection between the sand control valve and the pipeline by bolts. When the sand control valve needs to be cleaned or repaired, the bolts on the protective shell must be unscrewed first, and then the protective shell must be removed, and then the bolts at the connection must be unscrewed. The sand control valve must be dismantled for cleaning or repair. The disassembly and assembly steps are relatively stable and cumbersome, which extends the maintenance cycle of the sand control valve and increases its maintenance cost. Utility Model Content

[0005] The purpose of the present utility model is to provide a new ultra-high pressure sand control valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of ultra-high pressure sand control valve, including a sand control valve, pipes are installed on both sides of the sand control valve, the sand control valve and the pipe are screwed together by bolts, and a holding shell is provided on the outer sleeve of the connection between the sand control valve and the pipe, a plug-in block is installed on the bottom surface of one side of the holding shell, a holding block is installed on the surface of the plug-in block, a plug-in groove is provided on the bottom surface of the other side of the holding shell, a straight groove is provided on the surface of the straight groove, a limiting groove is provided on the surface of the straight groove, the limiting block is movably inserted in the limiting groove, and a pull-out column is installed on the surface of the limiting block.

[0007] Preferably, flanges are integrally formed on both sides of the sand control valve, and a flange is integrally formed on one end of the pipe connected to the sand control valve. A threaded hole is opened on the flange, and the threaded hole passes through the flange. Bolts are screwed on the flange, and a nut is sleeved on the outside of one end of the bolt passing through the flange on the pipe.

[0008] Rubber pads are installed at the flange connections between the sand control valve and the pipeline.

[0009] Preferably, the holding shell is a semi-annular plate structure, and an arc groove is provided on the inner ring surface of the holding shell. The width of the arc groove is the width of the connection between the sand control valve and the pipeline. There are two groups of holding shells, and the two groups of holding shells are arranged on the outside of the connection between one side of the sand control valve and the pipeline.

[0010] Preferably, the plug-in block is installed in the center of the bottom surface of one side of the sand control valve, and a holding block is installed on the surface of the plug-in block away from the connection between the sand control valve and the pipeline.

[0011] Preferably, the plug-in slot is opened in the center of the bottom surface of the other side of the holding shell, the position size of the holding shell corresponds to the plug-in block, a straight groove is opened on the surface of the plug-in slot away from the plug-in block, and limiting grooves are opened on the two parallel side walls of the straight groove, and the position size of the limiting grooves corresponds to the holding block.

[0012] Preferably, a limiting spring is installed in the limiting groove cavity, one end of the limiting spring is fixed on the surface of the limiting groove, and the other end of the limiting spring is fixed on the surface of the limiting block facing the limiting groove. One end of the limiting groove located in the straight groove cavity is provided with an inclined surface, and the inclined surface faces the direction of the straight groove inlet.

[0013] Preferably, a limiting hole is opened on the surface of the limiting groove, and a pull-out column is movably inserted in the limiting hole. The top of the pull-out column at one end in the limiting groove cavity is fixed on the surface of the limiting block, and the limiting spring is sleeved on the outside of the pull-out column at one end in the limiting groove cavity.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model discloses a novel ultra-high pressure sand control valve, which adopts bolt connection at the connection point of the sand control valve and the pipeline, ensures the stability of the connection point, and a holding shell is sleeved on the outside of the connection point to further strengthen the connection effect of the connection point, a plug-in block is installed on the bottom surface of one side of the holding shell, and a holding block is installed on the surface of the plug-in block, and a plug-in groove is provided on the bottom surface of the other side of the holding shell, and a straight groove is provided on one end surface of the plug-in groove, and a limiting groove is provided on the surface of the straight groove, and the limiting block is movably inserted in the limiting groove. By inserting the plug-in block of the holding shell into the plug-in groove, the limiting block and the holding block are clamped with each other to complete the assembly of the holding shell, and a pulling column is installed on the surface of the limiting block so that the limiting block can release the limiting position of the holding block on the holding block when it is pulled outward, which is convenient for disassembly of the holding shell. The device can not only strengthen the stability of the connection point through a simple structure, but also facilitate the disassembly of the holding shell, shorten the disassembly time of the sand control valve, and reduce its maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the sand control valve and pipeline assembly of the utility model;

[0018] Figure 3 This is a left-side structural diagram of the card holder shell of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the card holder shell from the right side of the utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure at center A;

[0021] Figure 6 This is a front view structural diagram of the card holder shell of the utility model;

[0022] Figure 7 for Figure 6 Schematic diagram of the structural cross section at AA in the middle;

[0023] Figure 8 for Figure 7 Schematic diagram of the structure at point B.

[0024] In the figure: sand control valve 1, pipe 2, rubber gasket 3, bolt 4, holding shell 5, plug-in block 6, holding block 7, plug-in slot 8, straight slot 9, limit slot 10, limit block 11, limit spring 12, pull-out column 13, nut 14. DETAILED DESCRIPTION

[0025] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figures 1-8 The utility model provides a technical solution: a new type of ultra-high pressure sand control valve, including a sand control valve 1, characterized in that: pipes 2 are installed on both sides of the sand control valve 1, the sand control valve 1 and the pipe 2 are screwed together by bolts 4, and a holding shell 5 is provided on the outer sleeve of the connection between the sand control valve 1 and the pipe 2, a plug-in block 6 is installed on the bottom surface of one side of the holding shell 5, a holding block 7 is installed on the surface of the plug-in block 6, a plug-in groove 8 is provided on the bottom surface of the other side of the holding shell 5, a straight groove 9 is provided on the surface of the straight groove 9, a limiting groove 10 is provided on the surface of the straight groove 9, a limiting block 11 is movably inserted in the limiting groove 10, and a pull column 13 is installed on the surface of the limiting block 11.

[0028] By using bolts 4 to connect the sand control valve 1 and the pipeline 2, the stability of the connection is guaranteed. A holding shell 5 is sleeved on the outside of the connection to further strengthen the connection effect of the connection. A plug-in block 6 is installed on the bottom surface of one side of the holding shell 5, and a holding block 7 is installed on the surface of the plug-in block 6. A plug-in groove 8 is provided on the bottom surface of the other side of the holding shell 5, and a straight groove 9 is provided on one end surface of the plug-in groove 8. A limiting groove 10 is provided on the surface of the straight groove 9. The limiting block 11 is movably inserted in the limiting groove 10. By inserting the plug-in block 6 of the holding shell 5 into the plug-in groove 8, the limiting block 11 and the holding block 7 are clamped to each other, completing the assembly of the holding shell 5. A pull-out column 13 is installed on the surface of the limiting block 11 so that it can release the limit of the limiting block 11 on the holding block 7 when pulled outward, thereby facilitating the disassembly of the holding shell 5.

[0029] Example 2

[0030] See also Figures 1 to 2 On the basis of Example 1, in order to realize the connection and sealing between the pipeline and the sand control valve, flanges are integrally formed on both sides of the sand control valve 1, and a flange is integrally formed on the end of the pipeline 2 connected to the sand control valve 1. A threaded hole is opened on the flange, and the threaded hole passes through the flange. A bolt 4 is screwed on the flange. The bolt 4 passes through the end of the flange on the pipeline 2 and is sleeved with a nut 14 on the outside. A rubber pad 3 is installed at the connection between the two flanges of the sand control valve 1 and the pipeline 2.

[0031] A threaded hole is opened on the flange of the sand control valve 1 and the pipeline 2, and a bolt 4 is screwed into the threaded hole. Then, a nut 14 is installed on the outer surface of the bolt 4. By tightening the bolt 4, the stability of the connection is ensured. A rubber pad 3 is installed at the connection. Both sides of the rubber pad 3 are squeezed by the flange to fill the connection and ensure the sealing of the connection.

[0032] Example 3

[0033] See also Figures 3 to 8 On the basis of the second embodiment, in order to realize the installation of the holding shell, the holding shell 5 is a semi-annular plate structure, and an arc groove is opened on the inner ring surface of the holding shell 5. The width of the arc groove is the width of the connection between the sand control valve 1 and the pipeline 2. The holding shell 5 is provided with two groups. The two groups of holding shells 5 are sleeved on the outside of the connection between the sand control valve 1 and the pipeline 2 on one side. The plug-in block 6 is installed in the center of the bottom surface of one side of the sand control valve 1. The plug-in block 7 is installed on the surface of the plug-in block 6 away from the connection between the sand control valve 1 and the pipeline 2. The plug-in groove 8 is opened in the center of the bottom surface of the other side of the holding shell 5. The position and size of the holding shell 5 correspond to the plug-in block 6. A straight groove 9 is provided on the surface of the plug-in slot 8 away from the plug-in block 6. A limiting groove 10 is provided on two parallel side walls of the straight groove 9. The position and size of the limiting groove 10 correspond to the holding block 7. A limiting spring 12 is installed in the cavity of the limiting groove 10. One end of the limiting spring 12 is fixed on the surface of the limiting groove 10, and the other end of the limiting spring 12 is fixed on the surface of the limiting block 11 facing the limiting groove 10. An inclined surface is provided at one end of the limiting groove 10 located in the cavity of the straight groove 9, and the inclined surface faces the inlet direction of the straight groove 9.

[0034] When installing the holding shell 5, the plug-in block 6 of the holding shell 5 is inserted into the plug-in slot 8, the holding block 7 enters the straight slot 9, and the limit block 11 is retracted to the inside of the limit slot 10 under the squeezing action of the holding block 7. At this time, the limit spring 12 contracts. When the holding block 7 completely enters the straight slot 9, the limit block 11 is not affected by external force, and the limit spring 12 lifts the limit block 11, thereby limiting the holding block 7, and the assembly between the two holding shells 5 is completed.

[0035] Example 4

[0036] See also Figures 3 to 8 On the basis of Example 3, in order to facilitate the disassembly of the holding shell, a limiting hole is opened on the surface of the limiting groove 10, and a pull-out column 13 is movably inserted in the limiting hole. The pull-out column 13 is located at the top of one end of the cavity of the limiting groove 10 and is fixed on the surface of the limiting block 11. The limiting spring 12 is sleeved on the outside of the pull-out column 13 at one end of the cavity of the limiting groove 10.

[0037] When the holding shell 5 needs to be disassembled, pull the pulling column 13 outward to retract the limit block 11 into the limit groove 10, release the limiting effect of the limit block 11 on the holding block 7, pull out the holding shell 5, and the holding shell 5 can be disassembled.

[0038] When the clamping block 7 is fully inserted into the straight groove 9, the limit block 11 is retracted into the inner part of the limit groove 10 under the extrusion of the clamping block 7, and the limit spring 12 contracts. When the clamping block 7 is fully inserted into the straight groove 9, the limit block 11 is not affected by external force, and the limit spring 12 pushes up the limit block 11, thereby limiting the clamping block 7. The assembly between the two clamping shells 5 is completed. When the clamping shell 5 needs to be disassembled, the pulling column 13 is pulled outward to retract the limit block 11 into the limit groove 10, releasing the limiting effect of the limit block 11 on the clamping block 7, and pulling the clamping shell 5 out can complete the disassembly of the clamping shell 5.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new ultra-high pressure sand control valve, comprising a sand control valve (1), characterized in that: Pipelines (2) are installed on both sides of the sand control valve (1), the sand control valve (1) and the pipeline (2) are screwed together by bolts (4), a holding shell (5) is provided on the outside of the connection between the sand control valve (1) and the pipeline (2), a plug-in block (6) is installed on the bottom surface of one side of the holding shell (5), a holding block (7) is installed on the surface of the plug-in block (6), a plug-in groove (8) is provided on the bottom surface of the other side of the holding shell (5), a straight groove (9) is provided on the surface of one end of the plug-in groove (8), a limiting groove (10) is provided on the surface of the straight groove (9), a limiting block (11) is movably inserted in the limiting groove (10), and a pull-out column (13) is installed on the surface of the limiting block (11).

2. The new ultra-high pressure sand control valve according to claim 1 is characterized in that: Flanges are integrally formed on both sides of the sand control valve (1), and a flange is integrally formed on one end of the pipeline (2) connected to the sand control valve (1). A threaded hole is provided on the flange, and the threaded hole passes through the flange. A bolt (4) is screwed on the flange. A nut (14) is sleeved on the outside of one end of the bolt (4) passing through the flange on the pipeline (2). A rubber pad (3) is installed at the connection between the two flanges of the sand control valve (1) and the pipeline (2).

3. The new ultra-high pressure sand control valve according to claim 1 is characterized in that: The holding shell (5) is a semi-annular plate-shaped structure. An arc groove is provided on the inner ring surface of the holding shell (5). The width of the arc groove is the width of the connection between the sand control valve (1) and the pipeline (2). Two groups of holding shells (5) are provided. The two groups of holding shells (5) are sleeved on the outside of the connection between one side of the sand control valve (1) and the pipeline (2).

4. The new ultra-high pressure sand control valve according to claim 1 is characterized in that: The plug-in block (6) is installed at a central position on the bottom surface of one side of the sand control valve (1), and a holding block (7) is installed on the surface of the plug-in block (6) away from the connection between the sand control valve (1) and the pipeline (2).

5. The new ultra-high pressure sand control valve according to claim 1 is characterized by: The plug-in slot (8) is provided at a central position on the bottom surface of the other side of the holding shell (5); the position and size of the holding shell (5) correspond to the plug-in block (6); a straight slot (9) is provided on the surface of the plug-in slot (8) away from the plug-in block (6); limiting slots (10) are provided on two parallel side walls of the straight slot (9); the position and size of the limiting slots (10) correspond to the holding block (7).

6. The new ultra-high pressure sand control valve according to claim 1 is characterized by: A limit spring (12) is installed in the cavity of the limit groove (10), one end of the limit spring (12) is fixed on the surface of the limit groove (10), and the other end of the limit spring (12) is fixed on the surface of the limit block (11) facing the limit groove (10). One end of the limit groove (10) located in the cavity of the straight groove (9) is provided with an inclined surface, and the inclined surface faces the inlet direction of the straight groove (9).

7. The new ultra-high pressure sand control valve according to claim 1 is characterized by: A limiting hole is provided on the surface of the limiting groove (10), a pull-out column (13) is movably inserted in the limiting hole, the top of the pull-out column (13) is located at one end of the cavity of the limiting groove (10) and is fixed on the surface of the limiting block (11), and the limiting spring (12) is sleeved on the outside of the pull-out column (13) at one end of the cavity of the limiting groove (10).

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