CN108443513B - An electric valve - Google Patents

Abstract

The present invention discloses an electric valve, belonging to the technical field of pipeline valves, characterized in that: a valve body, one side of which is provided with an extension, the extension is connected to the valve body and forms a valve core insertion cavity, an upper baffle and a lower baffle are connected and arranged in the valve body relative to the valve core insertion cavity; the upper baffle and the lower baffle are respectively arranged on the upper left and lower right sides of the valve body relative to the valve core insertion cavity, the forward projection part between the upper and lower baffles overlaps, and forms a Z-shaped circulation channel with the valve body; the valve core is located in the valve core insertion cavity, and the front end of the valve core is located in the middle of the Z-shaped circulation channel. The purpose of simple structure, low cost, suitable for high-pressure pipeline network and stable sealing is achieved.

Description

An electric valve

Technical Field

The invention relates to the technical field of pipeline valves, in particular to an electric valve.

Background Art

There are two major problems with traditional solenoid valves in pipe network applications. The first problem is high cost. When large-scale branch pipe networks are required, the economic expenditure is too high. The second problem is large size. Especially for solenoid valves used in high-pressure pipe networks, they are large in size and occupy a large space.

The purpose of the design of the present invention is to design a low-cost, small-sized electric valve to replace the solenoid valve in the traditional pipe network, while solving the requirements for size, pressure-resistant sealing ability, and repeated opening and closing ability under low cost requirements; the present invention has the advantages of low cost, small size, low energy consumption, and can be repeatedly opened and closed under high water pressure; it is equipped with multiple sealing rings, and the sealing effect is significant.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a technical solution with simple structure, low cost, applicability to high-pressure pipelines and stable sealing, so as to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

An electric valve, characterized in that it comprises

A valve body, one side of which is provided with an extension portion, which is connected to the valve body and forms a valve core insertion cavity, and an upper baffle plate and a lower baffle plate are connected and arranged in the valve body relative to the valve core insertion cavity; the upper baffle plate and the lower baffle plate are respectively arranged on the upper left and lower right sides of the valve body relative to the valve core insertion cavity, and the forward projection part between the upper and lower baffle plates overlaps, forming a Z-shaped flow channel with the valve body;

A valve core is located in the valve core insertion cavity, and the front end of the valve core is located in the middle of the Z-shaped flow channel;

A motor is located in the valve core, and a screw is connected to the front end of the motor;

The sealing seat has a threaded hole at the upper end, the threaded hole is threadedly connected to the screw rod and is used to be linked with the motor; the sealing seat is provided with a guide member, and the valve body is provided with a limit member, the limit member and the guide member cooperate to limit the rotation of the sealing seat, so that the sealing seat moves linearly up and down relative to the screw rod;

Wherein, a water outlet and a water inlet are arranged at the front end of the valve core, and the water inlet and the water outlet are connected; and the sealing seat is located on the water inlet of the valve core.

Preferably, a partition is provided in the valve core, the motor is located above the partition, and the screw passes through the partition.

Preferably, a sealing ring three is provided between the screw and the partition.

Preferably, an elastic member is connected to the sealing seat; one end of the elastic member is connected to the sealing seat, and the other end is fixed to the valve core or the valve body; when the sealing seat and the valve core cooperate to seal, the elastic member is in an energy storage state.

Preferably, two ends of the elastic member are connected to the sealing seat and the valve core respectively, a groove is provided at the front end of the valve core relative to the elastic member, and the elastic member is located in the groove.

Preferably, a sealing ring 1 is arranged on the outer side of the front end of the valve core to seal the flow channel.

Preferably, a second sealing ring is arranged on the outer side of the rear end of the valve core, and the second sealing ring fits the extension part to seal the valve core into the cavity.

Preferably, the rear end of the valve core and the extension of the valve body are threadedly connected.

Preferably, an end cover is connected to the extension part, the end cover and the extension part are threadedly connected, a boss is provided on the inner side of the end cover, the boss is in contact with the valve core, and limits the position of the valve core.

Preferably, a sealing gasket is sleeved on the sealing seat, and the size of the sealing seat is larger than the inner diameter of the water inlet; the size of the sealing gasket is larger than the inner diameter of the water inlet and smaller than the size of the sealing seat.

Preferably, the valve core is in the shape of a straight tube, and the length of the valve core is smaller than the depth of the valve core inserted into the cavity.

It can be seen from the above technical solution that the beneficial effects of the present invention are:

Compared with the traditional solenoid valve, the present invention has low cost, light weight and compact size, and can be used in various pipe networks, especially in pipe networks with high water pressure. The elastic member is provided to help the motor reduce the load, which helps the motor drive the sealing seat to open the water inlet, thus meeting the requirements of fast, flexible and long-term use.

By setting the elastic member, a small-sized motor can be selected, which is beneficial to reducing the length and width of the valve core; the valve core is located in the valve core insertion cavity, reducing the exposed length, making the overall size of the electric valve small and convenient for connection and use in various pipelines;

When the valve core and valve body are designed as separate parts, the seal is ensured by the first and second sealing rings, which facilitates the replacement of the valve core during maintenance, so as to ensure that most faults of the electric valve are solved quickly and efficiently;

When the valve core and valve body are designed as an integral whole, the first and second sealing rings are eliminated, the number of parts is reduced, and the failure rate is reduced; this is conducive to ensuring the sealing inside the valve body and preventing loose sealing caused by assembly problems of the valve core and valve body;

The electric valve adopts an inverted sealing form relative to the water inlet direction, so that it is not affected by water pressure in a closed state, and uses water pressure to further ensure the tightness of the sealing seat and the water inlet to prevent water leakage.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a structural schematic diagram of Embodiment 1 of the present invention;

FIG2 is a second structural diagram of the first embodiment of the present invention;

FIG3 is a schematic diagram of the structure of Embodiment 2 of the present invention;

FIG. 4 is a schematic diagram of the structure of a fourth embodiment of the present invention.

Reference numerals:

1. Valve body; 11. Limiting member; 12. Extension; 13. Lower baffle plate; 14. Upper baffle plate; 15. Valve core insertion cavity;

2. Valve core; 21. Partition plate; 22. Water inlet; 23. Water outlet; 24. Sealing ring 1; 25. Sealing ring 2;

3. Motor; 31. Screw; 32. Sealing ring three;

4. Sealing seat; 41. Threaded hole; 42. Sealing gasket; 43. Guide piece; 44. Elastic piece;

5. end cover; 51. boss;

6. Nozzle.

DETAILED DESCRIPTION

Embodiment 1, as shown in Figures 1 and 2:

An electric valve, characterized in that it comprises

A valve body 1, wherein one side of the valve body 1 is provided with an extension 12, wherein the extension 12 is connected to the valve body 1 and forms a valve core insertion cavity 15, wherein an upper baffle plate 14 and a lower baffle plate 13 are connected to and arranged in the valve body 1 relative to the valve core insertion cavity 15; wherein the upper baffle plate 14 and the lower baffle plate 13 are respectively arranged at the upper left and lower right sides of the valve body 1 relative to the valve core insertion cavity 15, wherein the forward projections of the upper baffle plates 14 and the lower baffle plates 15 overlap, and form a Z-shaped flow channel with the valve body 1;

The valve core 2 is located in the valve core insertion cavity 15, the front end of the valve core 2 is located in the middle of the Z-shaped flow channel, and a sealing ring 224 is arranged outside the front end of the valve core 2 to seal the flow channel; a sealing ring 25 is arranged outside the rear end of the valve core 2, and the sealing ring 25 fits the extension 12 to seal the valve core insertion cavity 15;

A motor 3 is located in the valve core 2, and a screw 31 is provided at the front end of the motor 3;

The sealing seat 4 is provided with a threaded hole 41 at the upper end, and the threaded hole 41 is threadedly connected to the screw rod 31 for linkage with the motor 3; the sealing seat 4 is provided with a guide member 43, and the valve body 1 is provided with a limit member 11, and the limit member 11 cooperates with the guide member 43 to limit the rotation of the sealing seat 4, so that the sealing seat 4 moves linearly up and down relative to the screw rod 31;

Among them, the front end of the valve core 2 is provided with a water outlet 23 and a water inlet 22, and the water inlet 22 and the water outlet 23 are connected; the sealing seat 4 is located on the water inlet 22 of the valve core 2, and the screw 31 is driven by the motor 3 to drive the sealing seat 4 to move up and down, so as to open or close the water inlet 22.

The valve core 2 is provided with a partition 21, the motor 3 is located above the partition 21, and the screw 31 penetrates the partition 21. A sealing ring 32 is provided between the screw 31 and the partition 21.

The sealing seat 4 is connected with an elastic member 44; one end of the elastic member 44 is connected to the sealing seat 4, and the other end is fixed to the valve core 2 or the valve body 1; when the sealing seat 4 and the valve core 2 cooperate to seal, the elastic member 44 is in an energy storage state.

The two ends of the elastic member 44 are connected to the sealing seat 4 and the valve core 2 respectively. The front end of the valve core 2 is provided with a notch relative to the elastic member 44, and the elastic member 44 is located in the notch.

A sealing ring 1 24 is disposed outside the front end of the valve core 2 to seal the flow channel. A sealing ring 25 is disposed outside the rear end of the valve core 2 to fit the extension 12 to seal the valve core into the cavity 15 .

The extension portion 12 is connected with an end cover 5 , and the end cover 5 is threadedly connected to the extension portion 12 . A boss 51 is provided on the inner side of the end cover 5 , and the boss 51 contacts the valve core 2 to limit the position of the valve core 2 in the valve core insertion cavity 15 .

A sealing gasket 42 is sleeved on the sealing seat 4 . The size of the sealing seat 4 is larger than the inner diameter of the water inlet 22 . The size of the sealing gasket 42 is larger than the inner diameter of the water inlet 22 and smaller than the size of the sealing seat 4 .

The valve core 2 is in a straight tube shape, and the length of the valve core 2 is smaller than the depth of the valve core inserted into the cavity 15 .

The valve body 1, the extension 12, the upper baffle 14, the lower baffle 13 and the limit member 11 are an integral whole. The upper 14 and lower 13 baffles have the same shape and size. The upper 14 and lower 14 baffles are both semicircular and have a cross-sectional area greater than half of the cross-sectional area of the valve body 1.

The water flows upward from the lower end of the Z-shaped flow channel, passing through the water inlet 22 and the water outlet 23 of the valve core 2 . The size of the water outlet 23 is smaller than or equal to the size of the water inlet 22 .

The guide member 43 and the sealing seat 4 are integrally formed, and the length of the guide member 43 is less than the depth of the threaded hole 41 ; the limit member 11 , the guide member 43 , the screw rod 31 and the motor 3 are located on the same straight line to facilitate the stable up and down movement of the sealing seat 4 .

The guide member 43 is hexagonal, and a hexagonal groove is provided on the limiting member 11, and the guide member 43 is located in the groove. When the sealing seat 4 rotates, the guide member 43 is acted upon by the limiting member 11, so that the sealing seat 4 only moves up and down linearly.

The electric valve adopts an inverted sealing form relative to the water inlet direction, so that it is not affected by water pressure in a closed state, and uses water pressure to further ensure the tightness of the sealing seat and the water inlet to prevent water leakage.

Description of the opening and closing action of the valve core 2 relative to the valve body 1. When the motor 3 is activated, the screw 31 rotates to push or pull the sealing seat 4 with the screw hole to reciprocate, so that the water inlet 22 located on the valve core 2 is opened or closed. When the water inlet 22 is opened, the water flow in the valve body 1 is affected by the water pressure, enters from the water inlet 22, and flows out from the water outlet 23, thereby completing the opening action of the electric valve; correspondingly, when the water inlet 22 is closed, the water flow cannot enter the water inlet 22, the water flow is blocked, and the electric valve is in a closed state.

Embodiment 2, as shown in FIG3:

On the basis of the first embodiment, the rear end of the valve core 2 is threadedly connected to the extension 12 of the valve body 1. The connection between the valve core 2 and the valve body 1 is strengthened to stabilize the position of the valve core 2 and ensure the sealing performance.

Embodiment three:

On the basis of the first embodiment, when the valve core 2 and the valve body 1 are designed as an integral whole, the sealing rings 1 24 and 25 are eliminated, the number of parts is reduced, and the failure rate is reduced; this is beneficial to ensure the sealing inside the valve body 1 and prevent poor sealing caused by assembly problems of the valve core 2 and the valve body 1.

Embodiment 4, as shown in FIG4:

On the basis of the first, second or third embodiment, a nozzle 6 is connected to one side of the electric valve, so that the nozzle 6 and the electric valve are a complete set of products. When renovating an old fire-fighting pipe network, it is only necessary to remove the original traditional fire-fighting nozzle, install the electric valve at the end of the old pipe network, and connect the nozzle 6 to the other end of the electric valve, so as to realize intelligent control of the water flow in the pipe network by relying on the electric valve.

The above is only a preferred embodiment of the present invention. All the descriptions of up, down, left, right, front, and back in the text are only for ease of understanding and are not intended to limit the actual use of the product. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. An electrically operated valve, comprising

The valve body is provided with an extension part at one side, the extension part is connected with the valve body, a valve core placing cavity is formed, and an upper baffle plate and a lower baffle plate are connected with the valve core placing cavity; the upper baffle plate and the lower baffle plate are respectively arranged at the left upper side and the right lower side of the valve body relative to the valve core placing cavity, forward projection parts between the upper baffle plate and the lower baffle plate are overlapped, and a Z-shaped circulation channel is formed by the valve body;

the valve core is positioned in the valve core placing cavity, and the front end of the valve core is positioned in the middle of the Z-shaped flow channel;

the motor is positioned in the valve core, and the front end of the motor is connected with a screw rod;

The upper end of the sealing seat is provided with a threaded hole, and the threaded hole is in threaded connection with the screw rod and is used for being interlocked with the motor; the sealing seat is provided with a guide piece, the valve body is provided with a limiting piece, and the limiting piece is matched with the guide piece and used for limiting the sealing seat to rotate so that the sealing seat moves vertically and linearly relative to the screw rod;

the front end of the valve core is provided with a water outlet and a water inlet, and the water inlet and the water outlet are communicated; the sealing seat is positioned on the water inlet of the valve core.

2. An electrically operated valve as set forth in claim 1 wherein: a partition plate is arranged in the valve core, the motor is located above the partition plate, and the screw penetrates through the partition plate.

3. An electrically operated valve as set forth in claim 2 wherein: and a sealing ring III is arranged between the screw rod and the partition plate.

4. An electrically operated valve as set forth in claim 1 wherein: an elastic piece is connected to the sealing seat; one end of the elastic piece is connected with the sealing seat, and the other end of the elastic piece is fixed on the valve core or the valve body; when the sealing seat and the valve core are matched for sealing, the elastic piece is in an energy storage state.

5. An electrically operated valve as set forth in claim 4 wherein: the two ends of the elastic piece are respectively connected to the sealing seat and the valve core, a notch is formed in the front end of the valve core relative to the elastic piece, and the elastic piece is located in the notch.

6. An electrically operated valve as set forth in claim 1 wherein: and a sealing ring I is arranged on the outer side of the front end of the valve core and used for sealing the circulation channel.

7. An electrically operated valve as claimed in claim 1 or 6, wherein: and a second sealing ring is arranged on the outer side of the rear end of the valve core, and is attached to the extension part and used for sealing the valve core embedded cavity.

8. An electrically operated valve as set forth in claim 1 wherein: the rear end of the valve core is in threaded connection with the outer extension part of the valve body.

9. An electrically operated valve as claimed in claim 1 or 8, wherein: the outer extension part is connected with an end cover, the end cover is in threaded connection with the outer extension part, a boss is arranged on the inner side of the end cover, the boss is in contact with the valve core, and the position of the valve core is limited.

10. An electrically operated valve as set forth in claim 1 wherein: the sealing seat is sleeved with a sealing gasket, and the size of the sealing seat is larger than the inner diameter of the water inlet; the size of the sealing gasket is larger than the inner diameter of the water inlet and smaller than the size of the sealing seat.