Large-diameter adjusting stop valve

Abstract

The utility model relates to the technical field of valves, in particular to a large-caliber adjusting stop valve which comprises a valve cover cylinder fixedly installed at the top of a valve body, a magnetic block is fixedly installed on the inner top wall of the valve cover cylinder, a fixing piece is fixedly installed on the inner side of the valve cover cylinder, and an electromagnetic coil is arranged on the inner side of the fixing piece. And a first valve rod is movably mounted on the inner side of the valve cover cylinder. An iron column can drive a first valve rod to open a sealing plug through magnetic attraction of a magnetic block to the iron column, gas can penetrate through a through hole through a gas inlet nozzle and is conveyed in a circulating mode through a gas outlet nozzle, and continuous power supply consumption and use of a storage battery on the inner side of the mounting box are avoided; an electromagnetic coil is powered on through a storage battery in an installation box, the top end of an iron column and a magnetic block generate the same magnetism through the electromagnetic coil, the iron column is separated from the magnetic block, a through hole is well sealed through a sealing plug under the elastic effect of a spring, and ventilation is cut off.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a large-diameter regulating shut-off valve. Background Technology

[0002] A shut-off valve is an actuator in an automation system. It consists of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. It receives signals from regulating instruments and controls the shut-off, connection, or switching of fluids in process pipelines. It features simple structure, sensitive response, and reliable operation. Shut-off valves have a wide range of applications and can be used to shut off coal gas, combustion air, cold air, and flue gas, etc.

[0003] In existing technologies, such as the "Gas Shut-off Valve" with Chinese Patent Publication No. CN221347880U, the use of a solenoid valve control device allows the solenoid coil to stop working when the power is off, causing the moving iron core to lose its attraction and fall, thereby causing the valve core at the lower end of the valve stem to overlap with the valve seat to close the valve. This facilitates the use of the equipment, eliminates the need for manual operation, and protects personnel safety.

[0004] In the aforementioned prior art, during the ventilation process, it is necessary to maintain a power supply to the solenoid valve control device to ensure that the solenoid coil generates magnetic force and keeps the valve stem in the open position. This continuous power supply consumes a lot of electrical energy. Utility Model Content

[0005] The purpose of this utility model is to provide a large-diameter regulating shut-off valve that has the characteristic of saving energy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large-diameter regulating shut-off valve, comprising a valve cover cylinder fixedly installed on the top of the valve body, a magnetic block fixedly installed on the inner top wall of the valve cover cylinder, a fixing member fixedly installed on the inner side of the valve cover cylinder, an electromagnetic coil provided on the inner side of the fixing member, a first valve stem movably installed on the inner side of the valve cover cylinder, an iron column attracted to the magnetic block being threadedly installed on the top of the first valve stem, a sealing plug fixedly installed on the bottom end of the first valve stem, a second valve stem being threadedly connected to the top of the iron column, and a spring being sleeved on the outer side of the first valve stem.

[0007] In order to provide electrical energy, as a preferred embodiment of the large-diameter regulating shut-off valve of this utility model, an installation box is fixedly installed on the right side of the valve cover cylinder, and a storage battery for power supply is provided inside the installation box. The storage battery is electrically connected to the electromagnetic coil.

[0008] To facilitate ventilation, in a preferred embodiment of this utility model of a large-diameter regulating shut-off valve, an air inlet is provided on the left side of the valve body, an air outlet is provided on the right side of the valve body, and a partition plate is fixedly installed on the inner side of the valve body to separate the air inlet and the air outlet.

[0009] To facilitate sealing and connection, in a preferred embodiment of the large-diameter regulating shut-off valve of this utility model, a through hole is provided on the inner side of the dividing plate, and a sealing gasket matching the through hole is provided at the bottom of the sealing plug.

[0010] In order to provide a damping effect, in a preferred embodiment of the large-diameter regulating shut-off valve of this utility model, a fixing block is fixedly installed on the inner side of the valve cover cylinder, and a damping sleeve adapted to the spring is fixedly installed at the center of the fixing block.

[0011] For ease of use, in a preferred embodiment of the large-diameter regulating shut-off valve of this utility model, the second valve stem passes through the top of the valve cover cylinder, the second valve stem is located inside the magnetic block and is movably sleeved with the magnetic block, and the iron column is located inside the fixing member with a gap.

[0012] For better sealing and connection, in a preferred embodiment of the large-diameter regulating shut-off valve of this utility model, the top end of the spring is fixedly connected to the bottom of the fixing block, and the bottom end of the spring is fixedly connected to the top of the sealing plug.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The magnetic attraction of the iron column by the magnetic block causes the iron column to move the first valve stem, opening the sealing plug. Gas flows through the inlet, through the through hole, and then through the outlet, avoiding continuous power consumption from the battery inside the mounting box. When it is necessary to cut off the gas supply, the battery inside the mounting box powers the electromagnetic coil. The electromagnetic coil causes the top of the iron column to become magnetically connected to the magnetic block, causing the iron column to detach from the magnetic block. Under the elastic action of the spring, the sealing plug seals the through hole, cutting off the gas supply. If the mounting box or the electromagnetic coil malfunctions, pressing the second valve stem causes the iron column to detach from the magnetic block, allowing the sealing plug to seal the through hole, completing the cut-off operation. Attached Figure Description

[0015] Figure 1 This is a complete three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial cross-sectional three-dimensional structural view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the valve cover cylinder of this utility model;

[0018] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0019] In the diagram: 1. Valve body; 2. Valve cover cylinder; 3. Mounting box; 4. Air inlet; 5. Air outlet; 6. Divider plate; 7. Through hole; 8. Sealing plug; 9. Spring; 10. First valve stem; 11. Fixing component; 12. Magnetic block; 13. Second valve stem; 14. Damping sleeve; 15. Iron column; 16. Fixing block; 17. Electromagnetic coil. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must be set in a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figures 1 to 4 A large-diameter regulating shut-off valve includes a valve cover cylinder 2 fixedly installed on the top of a valve body 1. A magnetic block 12 is fixedly installed on the inner top wall of the valve cover cylinder 2. A fixing member 11 is fixedly installed on the inner side of the valve cover cylinder 2. An electromagnetic coil 17 is provided on the inner side of the fixing member 11. A first valve stem 10 is movably installed on the inner side of the valve cover cylinder 2. An iron column 15 that attracts the magnetic block 12 is threadedly installed on the top of the first valve stem 10. A sealing plug 8 is fixedly installed on the bottom end of the first valve stem 10. A second valve stem 13 is threadedly connected to the top of the iron column 15. A spring 9 is sleeved on the outer side of the first valve stem 10.

[0022] In this embodiment: by setting up a spring 9, a magnetic block 12, an iron column 15, and an electromagnetic coil 17, the magnetic attraction of the iron column 15 by the magnetic block 12 can cause the iron column 15 to drive the first valve stem 10, thereby opening the sealing plug 8. Gas will flow through the air inlet 4, through the through hole 7, and through the air outlet 5, avoiding continuous power consumption from the battery inside the mounting box 3. When it is necessary to cut off the gas supply, the battery inside the mounting box 3 will power the electromagnetic coil 17. The electromagnetic coil 17 will cause the top of the iron column 15 to have the same magnetism as the magnetic block 12, causing the iron column 15 to detach from the magnetic block 12. Under the elastic action of the spring 9, the sealing plug 8 will seal the valve body 1 and cut off the gas supply. When the electromagnetic coil 17 malfunctions, pressing the second valve stem 13 will cause the iron column 15 to detach from the magnetic block 12, and the sealing plug 8 will seal the valve body 1 and cut off the gas supply. The above two cutting-off methods can be realized, and the gas supply can be cut off more effectively.

[0023] As a technical optimization of this utility model, an installation box 3 is fixedly installed on the right side of the valve cover cylinder 2, and a power supply battery is provided inside the installation box 3. The battery is electrically connected to the electromagnetic coil 17.

[0024] In this embodiment, the battery installed in the mounting box 3 can provide the required electrical energy to the electromagnetic coil 17.

[0025] As a technical optimization of this utility model, an air inlet 4 is provided on the left side of the valve body 1, and an air outlet 5 is provided on the right side of the valve body 1. A dividing plate 6 is fixedly installed on the inner side of the valve body 1 to separate the air inlet 4 and the air outlet 5. A through hole 7 is provided on the inner side of the dividing plate 6, and a sealing gasket matching the through hole 7 is provided at the bottom of the sealing plug 8.

[0026] In this embodiment: the sealing plug 8 seals the through hole 7, and the dividing plate 6 separates the air supply between the air inlet 4 and the air outlet 5.

[0027] As a technical optimization of this utility model, a fixing block 16 is fixedly installed on the inner side of the valve cover cylinder 2, and a damping sleeve 14 adapted to the spring 9 is fixedly installed at the center of the fixing block 16.

[0028] In this embodiment: by setting the damping sleeve 14, the spring 9 can be energy balanced by the damping sleeve 14 when it elastically returns to its original state, so that the sealing plug 8 and the through hole 7 can be better sealed under the elastic action of the spring 9 on the sealing plug 8.

[0029] As a technical optimization of this utility model, the second valve stem 13 passes through the top of the valve cover cylinder 2, the second valve stem 13 is located inside the magnetic block 12 and the second valve stem 13 is movably sleeved with the magnetic block 12, and the iron column 15 is located inside the fixing member 11 with a gap.

[0030] In this embodiment: by adapting the fixing member 11 to the iron column 15, the electromagnetic coil 17 inside the fixing member 11 can generate an electromagnetic field on the iron column 15, so that the top of the iron column 15 generates the same magnetism as the magnetic block 12. According to the principle of like poles repulsion, the iron column 15 can be separated from the magnetic block 12, so that the first valve stem 10 at the bottom of the iron column 15 drives the sealing plug 8 to seal and connect with the through hole 7, so that the electromagnetic coil 17 can be energized through the mounting box 3 to complete the cutting operation.

[0031] As a technical optimization of this utility model, the top end of the spring 9 is fixedly connected to the bottom of the fixing block 16, and the bottom end of the spring 9 is fixedly connected to the top of the sealing plug 8.

[0032] In this embodiment: by setting spring 9, the sealing plug 8 can be connected and sealed to the through hole 7 under the elastic action of spring 9 when the air supply is cut off, which facilitates the air supply cut-off operation.

[0033] Working principle: When it is necessary to cut off the air supply, the battery in the mounting box 3 powers the electromagnetic coil 17, which in turn powers the coil in the fixing part 11 to generate an electromagnet on the iron column 15. This causes the top of the iron column 15 to generate the same magnetism as the magnetic block 12. According to the principle of like poles repulsion, the iron column 15 detaches from the magnetic block 12. Under the elastic action of the spring 9, the iron column 15 drives the first valve stem 10 to move downward. The first valve stem 10 then drives the sealing plug 8 to seal the through hole 7 in the dividing plate 6. When the electromagnetic coil 17 malfunctions, pressing the second valve rod 13 causes the iron column 15 to disengage from the magnetic block 12, thereby sealing the through hole 7 of the dividing plate 6 with the sealing plug 8 and cutting off the air supply. The above two cutting-off methods can better cut off the air supply operation. When the air supply operation is required, pulling up the second valve rod 13 causes the iron column 15 and the first valve rod 10 to move upward. At this time, the magnetic block 12 magnetically attracts the iron column 15, causing the first valve rod 10 to drive the sealing plug 8 to disengage from the through hole 7 and open the air supply.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large-diameter regulating shut-off valve, comprising a valve cover cylinder (2) fixedly installed on the top of the valve body (1), characterized in that: A magnetic block (12) is fixedly installed on the inner top wall of the valve cover cylinder (2). A fixing member (11) is fixedly installed on the inner side of the valve cover cylinder (2). An electromagnetic coil (17) is provided on the inner side of the fixing member (11). A first valve stem (10) is movably installed on the inner side of the valve cover cylinder (2). An iron column (15) that attracts the magnetic block (12) is threaded on the top of the first valve stem (10). A sealing plug (8) is fixedly installed at the bottom end of the first valve stem (10). A second valve stem (13) is threaded on the top of the iron column (15). A spring (9) is sleeved on the outer side of the first valve stem (10).

2. The large-diameter regulating shut-off valve according to claim 1, characterized in that: An installation box (3) is fixedly installed on the right side of the valve cover cylinder (2). A storage battery for power supply is provided inside the installation box (3). The storage battery is electrically connected to the electromagnetic coil (17).

3. The large-diameter regulating shut-off valve according to claim 1, characterized in that: An air inlet (4) is provided on the left side of the valve body (1), and an air outlet (5) is provided on the right side of the valve body (1). A partition plate (6) is fixedly installed on the inner side of the valve body (1) to separate the air inlet (4) and the air outlet (5).

4. A large-diameter regulating shut-off valve according to claim 3, characterized in that: The inner side of the dividing plate (6) is provided with a through hole (7), and the bottom of the sealing plug (8) is provided with a sealing gasket that matches the through hole (7).

5. A large-diameter regulating shut-off valve according to claim 1, characterized in that: A fixing block (16) is fixedly installed on the inner side of the valve cover cylinder (2), and a damping sleeve (14) adapted to the spring (9) is fixedly installed at the center of the fixing block (16).

6. A large-diameter regulating shut-off valve according to claim 1, characterized in that: The second valve stem (13) passes through the top of the valve cover cylinder (2), the second valve stem (13) is located inside the magnetic block (12) and the second valve stem (13) is movably sleeved with the magnetic block (12), and the iron column (15) is located inside the fixing member (11) with a gap.

7. A large-diameter regulating shut-off valve according to claim 5, characterized in that: The top end of the spring (9) is fixedly connected to the bottom of the fixing block (16), and the bottom end of the spring (9) is fixedly connected to the top of the sealing plug (8).

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