CN218468352U

CN218468352U - Straight-through double-seat control valve

Info

Publication number: CN218468352U
Application number: CN202222194956.2U
Authority: CN
Inventors: 余长波; 祝伟; 黄智磊
Original assignee: Shanghai Gold Flow Maoye Fluid Technology Co ltd
Current assignee: Shanghai Gold Flow Maoye Fluid Technology Co ltd
Priority date: 2022-08-21
Filing date: 2022-08-21
Publication date: 2023-02-10
Anticipated expiration: 2032-08-21

Abstract

The utility model relates to the technical field of valves, specific straight-through double-seat control valve that says so, including last valve gap and valve body, the inside runner that has the circulation by the transport medium of valve body, go up valve gap and valve body stationary phase and connect, just go up valve gap and valve body junction and seted up the movable hole, make go up the inside being linked together of valve gap and valve body, the valve rod top is connected with straight stroke actuating mechanism, straight stroke actuating mechanism orders about the case and promotes downwards, the utility model discloses can be through the length of adjusting flexible pipeline, and need not to strengthen the processing to external pipeline again, improve the installation performance of valve, reduced the input of manpower and physics, improved the practicality of equipment, and the sealing washer and the backing plate that are equipped with, for the sealed material of elastoplasticity, when outer pipeline and interior pipeline concertina connection, the inseparable attached backing plate surface of sealing washer to the sealing of outer pipeline and interior pipeline seam has been realized.

Description

Straight-through double-seat control valve

Technical Field

The utility model relates to the technical field of valves, particularly, relate to a direct double-seat control flap.

Background

The double-seat control valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing reverse flow, stabilizing pressure, shunting or overflowing and releasing pressure and the like. For fluid control.

The existing valves are same in width, are usually arranged in different areas and different environments, and therefore, the length required by the valves when the valves are connected to different places is different.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a straight-through double-seat control flap can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a straight-through double-seat control valve, includes upper valve cover and valve body, the inside runner that the circulation was carried the medium that has of valve body, upper valve cover and valve body stationary phase are connected, just the movable hole has been seted up to upper valve cover and valve body junction, makes upper valve cover and the inside of valve body are linked together, sliding connection has the valve rod on the movable hole, valve rod bottom rigid coupling has the case, valve body bottom rigid coupling has the valve plate, the valve rod top is connected with straight stroke actuating mechanism, straight stroke actuating mechanism orders about the case and promotes downwards, with the valve plate supports tightly, realizes the inside runner that leads to of valve body seals, the valve body both sides communicate with each other and are connected with the flexible pipeline of adjustable length.

Preferably, the straight stroke executing mechanism is fixed to the top of the upper valve cover, a convex block is arranged at the bottom of the valve core, and a groove matched with the convex block is formed in the top of the valve plate.

Preferably, the valve element has a thickness equal to a thickness of the valve body.

Preferably, the telescopic pipeline is composed of an outer pipeline and an inner pipeline, the inner pipeline is fixedly connected to the inner wall of the valve body, and the inner pipeline is communicated with the inner channel of the valve body.

Preferably, a sliding plate is arranged at the top of the inner pipeline, a sliding groove is arranged on the inner wall of the outer pipeline, and the sliding groove is in sliding connection with the sliding plate.

Preferably, the top of the sliding plate is provided with a plurality of first screw holes, the outer pipeline is provided with a second screw hole, and the first screw holes are in butt joint with the second screw holes through screws.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the length of the telescopic pipeline can be adjusted, the telescopic pipeline is in sliding connection with the inner pipeline through the outer pipeline, the two sides of the outer pipeline are provided with the flange plates, the telescopic pipeline is used for being in butt joint with the pipelines, the length of the telescopic pipeline is adjusted, the installation performance of the valve is improved, when the telescopic pipeline is connected between the two pipelines, if the valve specifications are not matched, the length is left between the two sides and the pipelines, the length of the telescopic pipeline can be adjusted, the external pipeline does not need to be subjected to strengthening treatment, the installation performance of the valve is improved, the investment of manpower and physics is reduced, the practicability of equipment is improved, the sealing ring and the backing plate are arranged, the sealing ring is made of elastic-plastic sealing materials, the sealing ring is tightly attached to the surface of the backing plate when the outer pipeline is in telescopic connection with the inner pipeline, and therefore the joint of the outer pipeline and the inner pipeline is sealed.

2. When daily inside passage circulation, case and last valve cap bottom counterbalance tightly, when realizing the inside sealed of valve, order about straight stroke actuating mechanism, drive case promotion downwards and valve plate chucking, and lug and the recess that is equipped with all are circular setting, when case promotion downwards and valve plate chucking, lug and recess chucking have realized the case to the jam of passageway, and liquid can not appear permeating to the opposite side position, has improved the sealing performance of equipment.

Drawings

Fig. 1 is a schematic view of the overall structure of a straight-through double-seat control valve of the present invention;

fig. 2 is a schematic structural diagram of a valve core of a straight-through double-seat control valve of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 of the straight-through double-seat control valve of the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 2 of the straight-through double-seat control valve of the present invention.

In the figure: 1. an upper valve cover; 101. a movable hole; 2. a valve body; 3. a telescopic pipeline; 301. an outer conduit; 302. an inner conduit; 303. a slide plate; 304. a first screw hole; 305. a screw; 306. a second screw hole; 307. a chute; 4. a straight stroke actuator; 5. a valve stem; 6. a valve core; 7. a bump; 8. a valve plate; 801. a groove; 9. a seal ring; 10. a backing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, a straight-through double-seat control valve comprises an upper valve cover 1 and a valve body 2, a flow channel for circulating a conveyed medium is arranged inside the valve body 2, the upper valve cover 1 is fixedly connected with the valve body 2, a movable hole 101 is formed in the joint of the upper valve cover 1 and the valve body 2, so that the upper valve cover 1 is communicated with the inside of the valve body 2, a valve rod 5 is slidably connected onto the movable hole 101, a valve core 6 is fixedly connected to the bottom of the valve rod 5, a valve plate 8 is fixedly connected to the bottom of the valve body 2, a straight stroke executing mechanism 4 is connected to the top of the valve rod 5, the straight stroke executing mechanism 4 drives the valve core 6 to push downwards and tightly abut against the valve plate 8, the inside flow channel of the valve body 2 is sealed, and the two sides of the valve body 2 are communicated with a telescopic pipeline 3 with which can adjust the length.

In this embodiment, the straight stroke actuator 4 is fixed on the top of the upper valve cover 1, the bottom of the valve core 6 is provided with a bump 7, the top of the valve plate 8 is provided with a groove 801 matched with the bump 7, the thickness of the valve core 6 is equal to the thickness inside the valve body 2, the length of the telescopic pipeline 3 can be adjusted, the telescopic pipeline is slidably connected with the inner pipeline 302 through the outer pipeline 301, and flanges are arranged on two sides of the outer pipeline 301 for butt joint with the pipelines.

In this embodiment, the telescopic pipe 3 is composed of an outer pipe 301 and an inner pipe 302, the inner pipe 302 is fixedly connected to the inner wall of the valve body 2, the inner pipe 302 is communicated with the inner channel of the valve body 2, the length of the telescopic pipe 3 is adjusted, the installation performance of the valve is improved, and when the two pipes are connected, if the specifications of the valve are not matched, the length is left between the two sides and the pipes.

In this embodiment, interior pipeline 302 top is equipped with slide 303, and outer pipeline 301 inner wall is equipped with spout 307, and spout 307 and slide 303 sliding connection can be through adjusting flexible pipeline 3's length, and need not to strengthen the processing to external pipeline again, have improved the installation performance of valve, have reduced the input of manpower and physics, have improved the practicality of equipment.

In this embodiment, the top of the sliding plate 303 is provided with a plurality of first screw holes 304, the outer pipeline 301 is provided with a second screw hole 306, the first screw holes 304 and the second screw holes 306 are butted through a screw 305, when the daily internal channel circulates, the valve core 6 is tightly abutted to the bottom of the upper valve cover 1, when the internal sealing of the valve is realized, the straight stroke executing mechanism 4 is driven to drive the valve core 6 to downwards push and be clamped with the valve plate 8, the provided convex block 7 and the groove 801 are both circularly arranged, when the valve core 6 downwards pushes and is clamped with the valve plate 8, the convex block 7 and the groove 801 are clamped, the blockage of the valve core 6 to the channel is realized, the liquid cannot permeate to the other side part, and the sealing performance of the device is improved.

The working principle of the straight-through double-seat control valve is as follows: the length can be adjusted to flexible pipeline 3 that is equipped with, through outer pipeline 301 and interior pipeline 302 sliding connection, and the both sides of outer pipeline 301 all are equipped with the ring flange, be used for with the butt joint of pipeline, and adjust flexible pipeline 3's length, the installation performance of valve has been improved, when connecting between two pipelines, if the valve specification mismatch appears, when still leaving length between both sides and the pipeline, can be through adjusting flexible pipeline 3's length, and need not to strengthen the processing to external pipeline again, the installation performance of valve has been improved, the input of manpower and physics has been reduced, and the sealing washer and the backing plate that are equipped with, for elastoplasticity sealing material, when outer pipeline and interior pipeline telescopic connection, the inseparable attached backing plate surface of sealing washer, thereby the sealing of outer pipeline with interior pipeline seam has been realized, the practicality of equipment has been improved.

When daily internal passage circulates, case 6 supports tightly with 1 bottom of last valve gap, when realizing the inside sealed of valve, order about straight stroke actuating mechanism 4, drive case 6 and promote downwards and valve plate 8 chucking, and lug 7 and the recess 801 that is equipped with all are circular setting, when case 6 promotes downwards and valve plate 8 chucking, lug 7 and recess 801 chucking, realized the jam of case 6 to the passageway, liquid can not appear permeating to the opposite side position, has improved the sealing performance of equipment.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above description, and all embodiments cannot be exhausted here, and all obvious variations or changes are still in the protection scope of the present invention.

Claims

1. The utility model provides a straight-through double-seat control valve, includes upper valve cover (1) and valve body (2), its characterized in that: the utility model discloses a valve body, including valve body (2), upper valve cover (1) and valve body (2), movable hole (101) have been seted up to upper valve cover (1) and valve body (2) junction, make movable hole (101) are linked together to upper valve cover (1) and valve body (2) inside, sliding connection has valve rod (5) on movable hole (101), valve rod (5) bottom rigid coupling has case (6), valve body (2) bottom rigid coupling has valve plate (8), valve rod (5) top is connected with straight stroke actuating mechanism (4), straight stroke actuating mechanism (4) order about case (6) and promote downwards, with valve plate (8) support tightly, realize valve body (2) inside logical runner is sealed, valve body (2) both sides communicate mutually and are connected with flexible pipeline (3) of adjustable length, be equipped with sealing mechanism between flexible pipeline (3) and valve body (2).

2. A straight-through double seat control valve as claimed in claim 1, wherein: the straight stroke executing mechanism (4) is fixed to the top of the upper valve cover (1), a convex block (7) is arranged at the bottom of the valve core (6), and a groove (801) matched with the convex block (7) is arranged at the top of the valve plate (8).

3. A straight-through double seat control valve as claimed in claim 1, wherein: the thickness of the valve core (6) is equal to that of the interior of the valve body (2).

4. A straight-through double seat control valve as claimed in claim 1, wherein: the telescopic pipeline (3) is composed of an outer pipeline (301) and an inner pipeline (302), the inner pipeline (302) is fixedly connected to the inner wall of the valve body (2), and the inner pipeline (302) is communicated with an inner channel of the valve body (2).

5. A straight-through double seat control valve as claimed in claim 4, wherein: the top of the inner pipeline (302) is provided with a sliding plate (303), the inner wall of the outer pipeline (301) is provided with a sliding groove (307), and the sliding groove (307) is in sliding connection with the sliding plate (303).

6. A straight-through double seat control valve as claimed in claim 5, wherein: the top of the sliding plate (303) is provided with a plurality of first screw holes (304), the outer pipeline (301) is provided with a second screw hole (306), and the first screw holes (304) and the second screw holes (306) are butted through screws (305).

7. A straight-through double seat control valve as claimed in claim 1, wherein: the straight stroke executing mechanism (4) is an electric push rod.

8. A straight-through double seat control valve as claimed in claim 5, wherein: one end of the inner wall of the outer pipeline (301), which is close to the valve body (2), is fixedly connected with a sealing ring (9), a base plate (10) is arranged on the inner wall of the sliding groove (307), and the sealing ring (9) is in sliding connection with the base plate (10).

9. A straight-through dual-seat control valve as defined in claim 8, wherein: the sealing ring (9) and the backing plate (10) are both made of elastic-plastic sealing materials.