CN211474889U

CN211474889U - Stop valve

Info

Publication number: CN211474889U
Application number: CN201922264622.6U
Authority: CN
Inventors: 胡四清
Original assignee: NINGBO CHANGHUA COPPER PRODUCTS CO Ltd
Current assignee: NINGBO CHANGHUA COPPER PRODUCTS CO Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-11
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a stop valve, including valve body, valve rod and valve clack, be equipped with fluid passage in the valve body, the fluid passage middle part is equipped with the flex point, the inside flex point that corresponds of valve body is equipped with the disk seat, and the valve clack of telling is located fluid passage and matches the disk seat setting, the connection is equipped with the connecting seat on the valve clack, be equipped with the connection chamber that the cross-section is type on the connecting seat, the valve rod includes the threaded rod and the connector that is located the threaded rod bottom, the connector cross-section is type and rotates the embedding connection intracavity, the other end of threaded rod passes the valve body and connects and be equipped with the hand. Compared with the prior art, the utility model the advantage lie in: the valve clack is driven to vertically lift, abrasion caused by circumferential rotation friction of the valve clack and the valve seat is reduced, and the service life is prolonged.

Description

Stop valve

Technical Field

The utility model relates to a stop valve field specifically indicates a stop valve.

Background

The stop valve, also called stop valve, is one of the most widely used valves, and it is popular because of the small friction between the sealing surfaces in the opening and closing process, it is durable, the opening height is not large, the manufacture is easy, the maintenance is convenient, it is not only suitable for the medium and low pressure, but also for the high pressure. The stop valve depends on the pressure of the valve rod, so that the valve clack is tightly attached to the valve seat, the medium is prevented from flowing, and the sealing effect is achieved. But the leakproofness is bad for the vast majority of stop valves in the existing market, has the drawback of leaking after closing between disk seat and the valve clack, can cause very big inconvenience for the use like this, causes the loss, and in addition, valve clack receives the valve rod linkage usually, and it is great with disk seat rotational friction when sealing, causes wearing and tearing easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide one kind and adopt valve clack over-and-under type and disk seat sealing connection, sealed effectual, difficult wearing and tearing, long service life's a stop valve.

In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a stop valve, includes valve body, valve rod and valve clack, be equipped with fluid passage in the valve body, the fluid passage middle part is equipped with the flex point, the inside flex point that corresponds of valve body is equipped with the disk seat, and the valve clack of telling is located fluid passage and matches the disk seat setting, the connection is equipped with the connecting seat on the valve clack, be equipped with the connection chamber that the cross-section is type protrudingly on the connecting seat, the valve rod includes the threaded rod and is located the connector of threaded rod bottom, the connector cross-section is type protrudingly and rotates the embedding connection intracavity, the other end of threaded rod passes the.

Compared with the prior art, the utility model the advantage lie in: the connector of valve rod bottom rotates the embedding and is connecting the intracavity, realizes being connected of valve rod and valve clack, rotates the propulsion valve clack that the valve rod can be convenient through the hand wheel and goes up and down, and can not drive the valve clack and rotate to effectively reduce the wearing and tearing that the rotational friction of valve clack and disk seat caused, the sealed effect of guarantee, increase of service life, overall structure is simple, uses convenient operation.

As an improvement, the valve seat is of an annular structure, a round platform-shaped sealing interface with a wide upper part and a narrow lower part is arranged on the valve seat, and a better sealing effect is achieved by matching the valve clack.

As the improvement, the valve clack matches the sealing interface and is the round platform form, the upper surface diameter of valve clack is greater than sealing interface upper surface diameter, the lower surface diameter of valve clack is less than sealing interface lower surface diameter for the area of contact of sealing interface and valve clack is bigger, and sealed effect is better.

As an improvement, the sealing rubber gasket is connected and arranged on the peripheral surface of the outer side of the valve clack, and the sealing effect of the valve clack and the sealing interface is further improved.

As the improvement, the embedding is equipped with the ball on the global in the outside of connector, the surface and the laminating of being connected intracavity wall of ball improve the connector and connect the rotation effect of intracavity, reduce frictional resistance, it is more convenient to use.

As an improvement, the joint of the valve body and the threaded rod is provided with threads, and the threads are connected with a sealing sleeve to enhance the connection tightness between the valve rod and the valve body.

Drawings

Fig. 1 is a schematic view of a stop valve of the present invention.

Fig. 2 is a schematic view of the structure of part a in fig. 1.

Fig. 3 is a schematic view of the structure of the part B in fig. 1.

As shown in the figure: 1. the valve comprises a valve body, 2, a valve rod, 3, a valve clack, 4, a fluid channel, 5, an inflection point, 6, a connecting seat, 7, a connecting cavity, 8, a threaded rod, 9, a connecting head, 10, a hand wheel, 11, a sealing interface, 12, a sealing rubber gasket, 13, a ball, 14, threads, 15, a sealing sleeve, 16 and a valve seat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine shown in fig. 1-3, a stop valve, including valve body 1, valve rod 2 and valve clack 3, be equipped with fluid passage 4 in the valve body 1, fluid passage 4 middle part is equipped with the flex point 5, 1 inside corresponding flex point 5 of valve body is equipped with disk seat 16, and the valve clack 3 of telling matches the setting of disk seat 16 in being located fluid passage 4, the connection is equipped with connecting seat 6 on the valve clack 3, be equipped with the connection chamber 7 that the cross-section is the type on the connecting seat 6, valve rod 2 includes threaded rod 8 and is located the connector 9 of 8 bottoms of threaded rod, 9 cross-sections of connector are the type and rotate the embedding connection chamber 7 in, the other end of threaded rod 8 passes 1 connection of valve body and is equipped with hand wheel 10, valve body 1.

The valve seat 16 is of an annular structure, a round platform-shaped sealing interface 11 with a wide upper part and a narrow lower part is arranged on the valve seat 16, the valve clack 3 is matched with the sealing interface 11 and is in a round platform shape, the upper surface diameter of the valve clack 3 is larger than the upper surface diameter of the sealing interface 11, the lower surface diameter of the valve clack 3 is smaller than the lower surface diameter of the sealing interface 11, a sealing rubber gasket 12 is connected and arranged on the peripheral surface of the outer side of the valve clack 3, a ball 13 is embedded into the peripheral surface of the outer side of the connector 9, the outer surface of the ball 13 is attached to the inner wall of the connecting cavity 7, a thread 14 is arranged at the joint.

The utility model discloses when concrete implementation, fluid passage 4 uses arrow mark direction one end to annotate as the influent stream mouth in figure 1, and one end is for the outflowing port to supply the medium to flow in and flow out, valve clack 3 is connected with valve rod 2 through connecting seat 6, and valve rod 2 goes up and down under the effect of hand wheel 10, and valve rod 2 rotates with connecting seat 6 to be connected, thereby makes 3 vertical lift of valve clack and 16 sealing connection of disk seat.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a stop valve, includes valve body (1), valve rod (2) and valve clack (3), its characterized in that: be equipped with fluid passage (4) in valve body (1), fluid passage (4) middle part is equipped with inflection point (5), valve body (1) inside correspondence inflection point (5) are equipped with disk seat (16), and the valve clack (3) of telling are located fluid passage (4) and match disk seat (16) setting, the connection is equipped with connecting seat (6) on valve clack (3), be equipped with connection chamber (7) that the cross-section is the type of protruding on connecting seat (6), valve rod (2) include threaded rod (8) and be located connector (9) of threaded rod (8) bottom, connector (9) cross-section is the type of protruding and rotates the embedding and connect chamber (7) in, the other end of threaded rod (8) passes valve body (1) and is connected and is equipped with hand wheel (10), valve body (1) and threaded rod (8) thread sealing connection.

2. A shut-off valve as claimed in claim 1, wherein: the valve seat (16) is of an annular structure, and a round platform-shaped sealing interface (11) which is wide at the upper part and narrow at the lower part is arranged on the valve seat (16).

3. A shut-off valve as claimed in claim 2, wherein: valve clack (3) match sealed interface (11) and are the round platform form, the upper surface diameter of valve clack (3) is greater than sealed interface (11) upper surface diameter, the lower surface diameter of valve clack (3) is less than sealed interface (11) lower surface diameter.

4. A shut-off valve as claimed in claim 3, wherein: the outer side peripheral surface of the valve clack (3) is connected with a sealing rubber gasket (12).

5. A shut-off valve as claimed in claim 1, wherein: the embedding is equipped with ball (13) on the global outside of connector (9), the surface and the laminating of connecting chamber (7) inner wall of ball (13).

6. A shut-off valve as claimed in claim 1, wherein: the connecting part of the valve body (1) and the threaded rod (8) is provided with a thread (14), and the thread (14) is connected with a sealing sleeve (15).