CN218582292U - External thread gate valve - Google Patents

Abstract

The utility model discloses an external threaded gate valve, which comprises a valve body, a valve stem, a gate plate and a hand wheel. The valve stem is arranged in the valve body through a rotating assembly. One end of the valve body has a water inlet. The other end of the valve has a water outlet, the water inlet and the water outlet are connected, the two ends of the valve body close to the water inlet and the water outlet are threaded, the gate is located between the water inlet and the water outlet, the valve The body is provided with a sluice matching the sluice, the sluice is located in the sluice, and the lower end of the sluice is fixedly equipped with a filter assembly. , the filter screen plate rises with the opening of the gate plate, and filter material is arranged in the filter screen plate, so that after the gate valve is opened, with the rise of the filter screen plate, the gate valve can have a filtering effect, and the setting of the shell and the gasket , also allows cleaning and maintenance of the filter assembly when the gate valve is closed.

Description

An external threaded gate valve

technical field

The utility model belongs to the technical field of gate valves, in particular to an external threaded gate valve.

Background technique

A gate valve, also known as a gate valve, is a valve that opens by lifting the gate out of the fluid path. The gate valve requires little space along the pipe axis and hardly restricts the flow of fluid when the gate is fully open.

After the gate valve is installed, due to the lack of filtering function of the gate valve, if the liquid flowing through the pipeline needs to be filtered, it needs to install another filter to solve the problem, which is not convenient to use. Therefore, a gate valve with filtering effect is needed.

Contents of the invention

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: an externally threaded gate valve, including a valve body, a valve stem installed in the valve body by rotation, a gate plate arranged on the valve stem to move up and down through thread transmission, and a valve for The handwheel that drives the valve stem to rotate is characterized in that: the valve stem is set in the valve body through a rotating assembly, one end of the valve body has a water inlet, and the other end of the valve body has a water outlet, and the water inlet and The water outlet is connected through, the two ends of the valve body close to the water inlet and the water outlet are threaded, the gate is located between the water inlet and the water outlet, and a gate groove matching the gate is opened in the valve body. The gate is located in the gate groove, the lower end of the valve body is fixedly connected to the housing, the gate groove is connected to the inside of the housing, and the lower end of the gate is fixedly equipped with a filter assembly, the filter assembly includes A connection plate and a bottom plate fixedly connected to the lower end of the gate plate, the connection plate and the bottom plate are fixedly connected through two filter screen plates arranged at intervals, and filter materials are arranged in the intervals.

As a further improvement of the utility model: the width of the bottom plate is greater than the width of the upper end of the gate groove, and a sealing gasket is fixedly connected to the upper end of the bottom plate and the gate groove.

As a further improvement of the utility model: a sealing hole is opened on the bottom plate, and a sealing screw is screwed inside the sealing hole, and the sealing screw is located between two filter screen plates.

As a further improvement of the utility model: the connecting plate and the bottom plate are solid.

As a further improvement of the utility model: the housing is connected with the valve body in a threaded sealing manner.

As a further improvement of the utility model: the rotating assembly includes a rotating ring, the rotating ring is fixedly sleeved on the valve stem, a rotating groove is opened in the valve body, and the valve stem is set in the rotating groove by rotating the rotating ring Inside.

As a further improvement of the utility model: when the bottom plate is in the open state of the gate valve, the sealing pad of the bottom plate is set against the sealing pad of the valve groove, and when the gate valve is in the closed state, the gate plate is located in the gate groove, And the two sides of the flashboard are set in conflict with the gasket of the gate groove.

The beneficial effect of the utility model is that: by setting the filter assembly at the bottom of the gate, the filter screen rises following the opening of the gate, and the filter material is arranged in the filter screen, so that after the gate valve is opened, the filter screen rises with the lifting of the filter screen. Together, the gate valve can have a filtering effect, and the arrangement of the housing and the gasket also enables the filter assembly to be cleaned and maintained when the gate valve is closed.

Description of drawings

Accompanying drawing 1 is the structural drawing of the present utility model;

Accompanying drawing 2 is the enlarged schematic diagram of A in accompanying drawing 1;

Accompanying drawing 3 is the enlarged schematic diagram of B in accompanying drawing 1;

Accompanying drawing 4 is the schematic diagram when gate valve is opened;

Accompanying drawing 5 is the enlarged schematic diagram of C in accompanying drawing 4;

Description of reference signs: 1. Valve body, 2. Valve stem, 3. Gate plate, 4. Hand wheel, 5. Water inlet, 6. Water outlet, 7. Gate groove, 8. Housing, 9. Connecting plate, 10. Bottom plate, 11. Filter screen plate, 12. Filter material, 13. Sealing hole, 14. Sealing screw, 15. Rotating ring, 16. Rotating groove.

Detailed ways

The utility model will be described in further detail below in conjunction with the embodiments provided by the accompanying drawings.

Referring to the accompanying drawings 1-5, an externally threaded gate valve in this example includes a valve body 1, a valve stem 2 that is rotated in the valve body 1, and a gate plate that is movable up and down on the valve stem 2 through thread transmission. 3 and a hand wheel 4 for driving the valve stem 2 to rotate. The valve stem 2 is set in the valve body 1 through a rotating assembly. One end of the valve body 1 has a water inlet 5, and the other end of the valve body 1 has a The water outlet 6, the water inlet 5 and the water outlet 6 are set through, the two ends of the valve body 1 close to the water inlet 5 and the water outlet 6 are threaded, and the gate plate 3 is located between the water inlet 5 and the water outlet 6 Between, the valve body 1 is provided with a gate groove 7 matching the gate plate 3, the gate plate is a cuboid, the gate plate 3 is located in the gate groove 7, and the lower end of the valve body 1 is fixedly connected with a housing 8 , the gate groove 7 is provided through the inside of the housing 8, the lower end of the gate plate 3 is fixedly provided with a filter assembly, and the filter assembly includes a connecting plate 9 and a bottom plate 10 fixedly connected to the lower end of the gate plate 3, the The connection plate 9 and the bottom plate 10 are fixedly connected by two filter screen plates 11 arranged at intervals, and filter material 12 is arranged in the interval. , the hand wheel 4 drives the valve stem 2 to rotate, the valve stem 2 is fixedly sleeved with a rotating ring 15, the valve body 1 is provided with a rotating groove 16, and the valve stem 2 is rotated through the rotating ring 15 in the rotating groove 16 in the valve body 1. Rotate, because the gate plate 3 moves up and down on the valve stem 2 through screw transmission, the gate plate 3 will rise when the valve stem 2 is rotated, because the lower end of the gate plate 3 is fixedly connected with the connecting plate 9 and the bottom plate 10, the connecting plate 9 It is connected with the bottom plate 10 through two filter screen plates 11 arranged at intervals, and filter material 12 is arranged in the interval. When the gate plate 3 is raised, since the gate plate 3 is located in the gate groove 7 when the gate valve is closed , when the gate plate 3 rises, it will drive the filter screen plate 11 to rise through the connecting plate 9, and the filter screen plate 11 will drive the bottom plate 10 to move towards the gate groove 7. Since the upper end of the bottom plate 10 and the gate groove 7 are fixedly connected with a sealing gasket After moving upwards until the gasket of the bottom plate 10 collides with the gasket of the gate groove 7, it means that the movement has been completed, and a seal is formed between the bottom plate 10 and the gate groove 7 through the gasket, and the filter screen plate 11 will be located at this time. Between the water inlet 5 and the water outlet 6, the liquid flowing through is filtered. If the filter screen 11 needs to be cleaned, the gate valve is closed. After closing, the gate plate 3 will be located in the gate groove 7 and will be in contact with the gasket A seal is formed. Since the lower end of the valve body 1 is connected to the housing 8 by thread sealing, and the filter screen 11 is located in the housing 8, after the gate groove 7 and the gate 3 form a seal, the liquid can be prevented from flowing from the gate 3 to the gate 3. The gate groove 7 flows into the housing 8. At this time, the housing 8 can be unscrewed to clean the filter screen plate 11. If the filter material 12 needs to be replaced, since the bottom plate 10 is provided with a sealing hole 13, the sealing hole 13 A sealing screw 14 is provided inside, and the sealing screw 14 is located between the two filter screen plates 11, so that after the sealing screw 14 is loosened, the filter material 12 can be replaced from the sealing hole 13. The filter assembly is installed, and the filter screen plate 11 rises following the opening of the gate plate 3. The filter screen plate 11 is provided with a filter material 12, so that after the gate valve is opened, with the rise of the filter screen plate 11, the gate valve can have a filtering effect. , and the arrangement of the housing 8 and the gasket also makes it possible to clean and maintain the filter assembly when the gate valve is closed.

The utility model is further set as: the width of the base plate 10 is greater than the width of the upper end of the gate groove 7, the upper end of the base plate 10 and the gate groove 7 are fixedly connected with a gasket, and the upper end of the base plate 10 and the gate groove 7 The sealing gasket fixed inside is convenient for the sealing gasket of the bottom plate 10 to conflict with the sealing gasket of the gate groove 7 when the gate valve is opened, and the liquid will not leak into the shell 8 from between the bottom plate 10 and the gate groove 7 when the gate valve is working When the gate valve is closed, the gate plate 3 will interfere with the gasket in the gate groove 7 to form a seal, so that the liquid can be prevented from flowing into the housing 8 from between the gate plate 3 and the gate groove 7, which is convenient for The filter screen plate 11 in the housing 8 is cleaned or the filter material 12 is replaced.

The utility model is further set as follows: the bottom plate 10 is provided with a sealing hole 13, and the inner screw of the sealing hole 13 is provided with a sealing screw 14, and the sealing screw 14 is located between the two filter screen plates 11. The sealing hole 13 and the sealing screw 14 make it possible to replace the filter material 12 in the filter screen plate 11 by unscrewing the sealing screw 14 when the filter material 12 needs to be replaced, which facilitates the replacement of the filter material 12.

The utility model is further set as: the connecting plate 9 and the bottom plate 10 are solidly arranged, because the connecting plate 9 and the bottom plate 10 are solidly arranged, so that after the gate valve is opened, the liquid will not flow from the connecting plate 9 and the bottom plate 10 during work. And leak into the flashboard 3 and the housing 8.

The utility model is further set as: the housing 8 is connected with the valve body 1 through a threaded sealing method, and through the setting of the threaded connection, it is convenient to replace the filter material 12 or clean the filter screen plate 11 through The filter material 12 can be replaced or the filter screen plate 11 can be cleaned by threaded connection and the housing 8 is removed.

The utility model is further set as: the rotating assembly includes a rotating ring 15, the rotating ring 15 is fixedly sleeved on the valve stem 2, a rotating groove 16 is opened in the valve body 1, and the valve stem 2 passes through the The rotating ring 15 is rotated and arranged in the rotating groove 16. By setting the rotating ring 15 and the rotating groove 16, when the valve stem 2 is rotated by the handwheel 4, the valve rod 2 will not be caused by the setting of the rotating ring 15 and the rotating groove 16. Moving up and down through thread transmission makes it convenient for the gate to move up and down through thread transmission.

The utility model is further set as: when the bottom plate 10 is in the open state of the gate valve, the sealing pad of the bottom plate 10 is set in conflict with the sealing pad of the valve groove, so that when the gate valve is opened for work, the bottom plate 10 and the gate valve can be connected by the sealing pad. A seal is formed between the grooves 7, so that the work is stable. When the gate valve is in a closed state, the gate plate 3 is located in the gate groove 7, and the two sides of the gate plate 3 are set in conflict with the gasket of the gate groove 7, so that it can Prevent the liquid from flowing into the housing 8 from between the gate plate 3 and the gate groove 7, and facilitate the removal of the housing to clean the filter screen 11 in the housing 8 or replace the filter material 12.

The above descriptions are only preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments. Any modifications, modifications or equivalent replacements made by those of ordinary skill in the art according to the above descriptions belong to the scope of the present utility model. scope of protection.

Claims (7)

1. An externally threaded gate valve, including a valve body (1), a valve stem (2) that is rotated inside the valve body (1), and a gate (3) that is moved up and down on the valve stem (2) through thread transmission ) and the hand wheel (4) for driving the valve stem (2) to rotate, characterized in that: the valve stem (2) is set in the valve body (1) through a rotating assembly, and one end of the valve body (1) It has a water inlet (5), the other end of the valve body (1) has a water outlet (6), the water inlet (5) and the water outlet (6) are connected through, and the valve body (1) is close to the water inlet (5) and the two ends of the water outlet (6) are threaded, the gate (3) is located between the water inlet (5) and the water outlet (6), and the valve body (1) is provided with a gate The gate groove (7) matched with the plate (3), the gate plate (3) is located in the gate groove (7), the lower end of the valve body (1) is fixedly connected with the housing (8), and the gate groove (7) is arranged through the inside of the housing (8), and the lower end of the gate (3) is fixedly provided with a filter assembly, and the filter assembly includes a connecting plate (9) fixedly connected to the lower end of the gate (3) and The bottom plate (10), the connecting plate (9) and the bottom plate (10) are fixedly connected through two spaced filter screen plates (11), and filter material (12) is set in the space. 2. An externally threaded gate valve according to claim 1, characterized in that: the width of the bottom plate (10) is greater than the width of the upper end of the gate groove (7), and the upper end of the bottom plate (10) and the gate groove (7) ) are fixedly connected with gaskets. 3. An externally threaded gate valve according to claim 2, characterized in that: the bottom plate (10) is provided with a sealing hole (13), and the inner screw of the sealing hole (13) is provided with a sealing screw (14) , the sealing screw (14) is located between the two filter screen plates (11). 4. An externally threaded gate valve according to claim 2 or 3, characterized in that: the connecting plate (9) and the bottom plate (10) are solid. 5. An externally threaded gate valve according to claim 4, characterized in that: the housing (8) is connected to the valve body (1) in a threaded sealing manner. 6. An externally threaded gate valve according to claim 5, characterized in that: the rotating assembly includes a rotating ring (15), and the rotating ring (15) is fixedly sleeved on the valve stem (2). A turning groove (16) is opened in the valve body (1), and the valve stem (2) is set in the turning groove (16) by rotating the turning ring (15). 7. An externally threaded gate valve according to claim 6, characterized in that: when the bottom plate (10) is in the open state of the gate valve, the sealing gasket of the bottom plate (10) is set against the sealing gasket of the valve slot, so When the gate valve is in a closed state, the gate plate (3) is located in the gate groove (7), and both sides of the gate plate (3) are arranged in conflict with the gasket of the gate groove (7).

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