Pneumatic rubber lining angle type stop valve with good sealing performance

Abstract

The pneumatic rubber lining angle type stop valve comprises a stop valve body, an inlet pipe is fixedly installed at the bottom end of the stop valve body, and a protection assembly for reducing abrasion of solid particles in a medium to a sealing face is arranged in the inlet pipe. The protection assembly comprises a protection filter plate arranged in the inlet pipe and located under the sealing face, first fixed magnets evenly and fixedly installed on the periphery of the protection filter plate in a surrounding mode and a fixed outer ring fixedly installed on the periphery of the inlet pipe, and an inflation air bag is fixedly installed on the inner side of the fixed outer ring. Solid particles in a circulating medium can be blocked through the protective filter plate, damage caused by friction between the solid particles in the medium and a sealing surface is reduced, meanwhile, the protective filter plate can be quickly fixed in the inlet pipe through the opposite attraction effect of a first fixed magnet and a second fixed magnet, and the sealing surface is prevented from being damaged. And the mounting portability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of angle stop valves, in particular to a pneumatic rubber-lined angle stop valve with good sealing performance. Background Art

[0002] The inlet and outlet channels of the angle stop valve are at a certain angle, usually a right angle. This structural design gives the valve a unique advantage in places where installation space is limited, and it can better adapt to specific pipeline layouts. Rubber lining refers to the rubber material lining the inner surface of the valve. Rubber has good corrosion resistance and can effectively resist the erosion of various corrosive media, extending the service life of the valve. At the same time, rubber can also provide a certain degree of sealing and reduce the risk of leakage.

[0003] The working principle of the stop valve is to rotate the valve stem to raise or lower the valve core, thereby changing the size of the channel between the valve seat and the valve core to achieve control of the fluid. However, when there are solid particles in the circulating medium, the solid particles will rub against the sealing surface of the valve core through circulation, causing scratches, pits, corrosion and other damage to the sealing surface, thereby reducing the sealing performance and affecting its use. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that a stop valve raises or lowers a valve core by rotating a valve stem, thereby changing the size of a channel between a valve seat and a valve core to achieve control of a fluid. However, when there are solid particles in the circulating medium, the solid particles rub against the sealing surface of the valve core through the circulation, resulting in scratches, pits, corrosion and other damages on the sealing surface, thereby reducing the sealing performance and affecting the use. A pneumatic rubber-lined angle stop valve with good sealing performance is provided.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a pneumatic rubber-lined angle stop valve with good sealing performance, comprising a stop valve body, an inlet pipe fixedly installed at the bottom end of the stop valve body, a protective component for reducing the wear of the sealing surface caused by solid particles in the medium is arranged inside the inlet pipe, the protective component comprises a protective filter plate arranged inside the inlet pipe and directly below the sealing surface, a first fixed magnet evenly surrounding and fixedly installed on the outer periphery of the protective filter plate, and a fixed outer ring fixedly installed on the outer periphery of the inlet pipe, an inflatable airbag is fixedly installed on the inner side of the fixed outer ring, and a second fixed magnet fixed by magnetic attraction with the first fixed magnet is fixedly installed at one end of the inflatable airbag, a micro air pump for inflating the inflatable airbag is fixedly installed on the outer periphery of the inlet pipe, an air inlet pipe is fixedly installed at one end of the micro air pump, an air supply pipe is fixedly installed at one end of the micro air pump, a multi-way pipe is fixedly installed at one end of the air supply pipe, and the multi-way pipe passes through the fixed outer ring and is connected with the inflatable airbag.

[0006] As a further solution of the present invention: a guide groove is opened on the inner side of the inlet pipe to facilitate the guidance of the protective filter plate, and the guide groove is evenly opened around the inside of the inlet pipe, and a guide block that is slidably adapted to the guide groove is evenly fixedly installed around the outer periphery of the protective filter plate.

[0007] As a further solution of the present invention: a limiting ring for limiting the position of the protective filter plate is fixedly installed inside the inlet pipe and directly below the sealing surface.

[0008] As a further solution of the present invention: a discharge pipe for facilitating the discharge of the medium is fixedly mounted on one end of the stop valve body, and the discharge pipe is arranged at a 90-degree angle with the inlet pipe.

[0009] As a further solution of the present invention: a valve seat is arranged at the top of the stop valve body to facilitate adjustment by the staff.

[0010] As a further solution of the present invention: the outer wall of the protective filter plate is connected to the inner wall of the inlet pipe in sealing contact.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention can block solid particles in the circulating medium through the protective filter plate, reduce the damage caused by friction between the solid particles in the medium and the sealing surface, and at the same time, through the attraction between the opposite poles of the first fixed magnet and the second fixed magnet, the protective filter plate can be quickly fixed inside the inlet pipe, thereby increasing the portability of the installation;

[0013] 2. The guide block and the guide groove can facilitate the user to quickly position the first fixed magnet and the second fixed magnet on the periphery of the protective filter plate, thereby increasing the speed of installing the protective filter plate. The limiting ring can limit the protective filter plate during installation, thereby increasing the accuracy of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 The present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0016] Figure 3 Schematic diagram of the bottom structure of the inlet pipe of the present invention;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the stop valve body and the inlet pipe of the present invention;

[0018] Figure 5 The present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0019] Figure 6 It is an enlarged structural schematic diagram of the protective filter plate of the present invention.

[0020] In the figure: 1. stop valve body; 2. inlet pipe; 3. outlet pipe; 4. valve seat; 5. protection assembly; 51. protection filter plate; 52. guide groove; 53. guide block; 54. first fixed magnet; 55. fixed outer ring; 56. inflatable airbag; 57. second fixed magnet; 58. multi-way pipe; 59. micro air pump; 510. air delivery pipe; 511. air inlet pipe; 512. limit ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0023] Reference Figure 1 and Figure 6In the embodiment of the present invention, a pneumatic rubber-lined angle stop valve with good sealing performance includes a stop valve body 1, an inlet pipe 2 is fixedly installed at the bottom end of the stop valve body 1, and a protective component 5 is arranged inside the inlet pipe 2 to reduce the wear of the sealing surface caused by solid particles in the medium. The protective component 5 includes a protective filter plate 51 arranged inside the inlet pipe 2 and located directly below the sealing surface, a first fixed magnet 54 uniformly surrounding and fixedly installed on the outer periphery of the protective filter plate 51, and a fixed outer ring 55 fixedly installed on the outer periphery of the inlet pipe 2. An inflatable airbag 56 is fixedly installed on the inner side of the outer ring 55, and a second fixed magnet 57 fixed to the first fixed magnet 54 by magnetic attraction is fixedly installed on one end of the inflatable airbag 56. A micro air pump 59 for inflating the inflatable airbag 56 is fixedly installed on the outer periphery of the inlet tube 2. An air inlet pipe 511 is fixedly installed on one end of the micro air pump 59. An air delivery pipe 510 is fixedly installed on one end of the micro air pump 59. A multi-way pipe 58 is fixedly installed on one end of the air delivery pipe 510, and the multi-way pipe 58 passes through the fixed outer ring 55 and is connected to the inflatable airbag 56.

[0024] Through the implementation of this method: the inflation tubes of the multiple groups of inflatable airbags 56 inside the fixed outer ring 55 are connected to the multi-way tube 58 for inflation. The multiple groups of inflatable airbags 56 can be inflated together through the multi-way tube 58. The protective filter plate 51 can block the solid particles in the circulating medium, reducing the damage caused by the friction between the solid particles in the medium and the sealing surface. At the same time, through the attraction of opposite poles between the first fixed magnet 54 and the second fixed magnet 57, the protective filter plate 51 can be quickly fixed to the inside of the inlet tube 2, thereby increasing the portability of the installation.

[0025] Reference Figure 1 and Figure 6 A guide groove 52 is provided inside the inlet pipe 2 to facilitate the guiding of the protective filter plate 51, and the guide groove 52 is evenly arranged around the inside of the inlet pipe 2, and a guide block 53 is evenly fixed around the outer periphery of the protective filter plate 51 to be slidably matched with the guide groove 52;

[0026] Through the implementation of this method, the guide block 53 and the guide groove 52 can facilitate the user to quickly position the first fixed magnet 54 and the second fixed magnet 57 on the periphery of the protective filter plate 51, thereby increasing the speed of installing the protective filter plate 51.

[0027] Reference Figure 1 and Figure 6 A limiting ring 512 for limiting the position of the protective filter plate 51 is fixedly installed in the pipe 2 and is located just below the sealing surface;

[0028] Through the implementation of this method: the limiting ring 512 can be used to limit the protective filter plate 51 during installation, thereby increasing the accuracy of installation.

[0029] Reference Figure 1 and Figure 6 A discharge pipe 3 is fixedly installed at one end of the stop valve body 1 for facilitating the discharge of the medium. The discharge pipe 3 is arranged at a 90-degree angle with the inlet pipe 2. A valve seat 4 is arranged at the top of the stop valve body 1 for convenience of adjustment by the staff.

[0030] Reference Figure 1 and Figure 6 , the outer wall of the protective filter plate 51 is in sealing contact with the inner wall of the inlet pipe 2;

[0031] By implementing this method, the outer periphery of the protective filter plate 51 is in contact with the inner wall of the inlet pipe 2, thereby increasing the sealing performance of the connection between the protective filter plate 51 and the inlet pipe 2.

[0032] The working principle of the present invention is: when installing the protective filter plate 51, firstly, the first fixed magnet 54 on the outer periphery of the protective filter plate 51 and the second fixed magnet 57 arranged inside the fixed outer ring 55 can be positioned through the guide groove 52 and the guide block 53, thereby increasing the portability of the installation of the protective filter plate 51. At the same time, the first fixed magnet 54 on the outer periphery of the protective filter plate 51 can be positioned directly below the second fixed magnet 57 through the limit ring 512, thereby increasing the portability of the installation of the protective filter plate 51. Then, the staff starts the micro air pump 59, and the micro air pump 59 takes in air through the air inlet pipe 511. Then, the air is input to the multi-way pipe 58 through the air delivery pipe 510. The multi-way pipe 58 can fill the multiple groups of air inside the fixed outer ring 55. The airbag 56 is inflated at the same time. The volume of the inflated airbag 56 is expanded by the filling of gas, and the second fixed magnet 57 at the bottom approaches the first fixed magnet 54 and is fixed. The solid particles in the circulating medium can be blocked by the protective filter plate 51, thereby reducing the damage caused by the friction between the solid particles in the medium and the sealing surface. At the same time, through the attraction between the first fixed magnet 54 and the second fixed magnet 57, the protective filter plate 51 can be quickly fixed to the inside of the inlet pipe 2, thereby increasing the portability of the installation. When disassembly is required, it is only necessary to start the micro air pump 59 to extract the gas inside the inflated airbag 56, and it will drive the second fixed magnet 57 at the bottom to separate from the first fixed magnet 54, and the disassembly can be completed.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Pneumatic rubber lined angle stop valve with good sealing performance, characterized by: The invention comprises a stop valve body (1), an inlet pipe (2) being fixedly mounted at the bottom end of the stop valve body (1), a protective component (5) being arranged inside the inlet pipe (2) to reduce the wear of the sealing surface caused by solid particles in the medium, the protective component (5) comprising a protective filter plate (51) arranged inside the inlet pipe (2) and located directly below the sealing surface, a first fixed magnet (54) evenly surrounding and fixedly mounted on the outer periphery of the protective filter plate (51), and a fixed outer ring (55) fixedly mounted on the outer periphery of the inlet pipe (2), an inflatable airbag being fixedly mounted on the inner side of the fixed outer ring (55) (56), and a second fixed magnet (57) fixedly mounted on one end of the inflatable airbag (56) and magnetically fixed to the first fixed magnet (54), a micro air pump (59) for inflating the inflatable airbag (56) is fixedly mounted on the outer periphery of the inlet tube (2), an air intake pipe (511) is fixedly mounted on one end of the micro air pump (59), an air delivery pipe (510) is fixedly mounted on one end of the micro air pump (59), a multi-way pipe (58) is fixedly mounted on one end of the air delivery pipe (510), and the multi-way pipe (58) passes through the fixed outer ring (55) and is connected to the inflatable airbag (56).

2. The pneumatic rubber-lined angle stop valve with good sealing performance according to claim 1 is characterized in that: A guide groove (52) is provided on the inner side of the inlet pipe (2) for guiding the protective filter plate (51), and the guide groove (52) is evenly arranged around the inside of the inlet pipe (2), and a guide block (53) is evenly fixedly installed around the outer periphery of the protective filter plate (51) and is slidably matched with the guide groove (52).

3. The pneumatic rubber-lined angle stop valve with good sealing performance according to claim 1 is characterized in that: A limiting ring (512) for limiting the position of the protective filter plate (51) is fixedly installed inside the inlet pipe (2) and directly below the sealing surface.

4. The pneumatic rubber-lined angle stop valve with good sealing performance according to claim 1 is characterized in that: A discharge pipe (3) for facilitating the discharge of the medium is fixedly mounted on one end of the stop valve body (1); the discharge pipe (3) is arranged at a 90-degree angle with the inlet pipe (2).

5. The pneumatic rubber-lined angle stop valve with good sealing performance according to claim 1 is characterized in that: The top end of the stop valve body (1) is provided with a valve seat (4) for easy adjustment by staff.

6. The pneumatic rubber-lined angle stop valve with good sealing performance according to claim 1 is characterized in that: The outer wall of the protective filter plate (51) is connected to the inner wall of the inlet pipe (2) in sealing contact.

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