CN218543333U

CN218543333U - Telescopic sealed butterfly valve

Info

Publication number: CN218543333U
Application number: CN202223167063.5U
Authority: CN
Inventors: 张海宽; 王立; 王熙康
Original assignee: Zhejiang Huamu Environment Engineering Co ltd
Current assignee: Zhejiang Huamu Environment Engineering Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-02-28
Anticipated expiration: 2032-11-29

Abstract

The utility model provides a telescopic sealing butterfly valve, which relates to the technical field of butterfly valves and comprises a valve body, a valve plate and a valve seat, wherein the valve plate is rotatably arranged in the valve body, the valve seat is arranged on the outer side of the valve body, the valve rod is rotatably arranged at the top end of the valve seat, the connector is symmetrically arranged on the outer side of the valve body, one side of the connector is provided with a movable pipe, and a telescopic mechanism is arranged in the movable pipe; the utility model discloses an when the external pipeline takes place expend with heat and contract with cold, the external pipeline can push up the tensioning cover rebound through fixed cover tip to tight with the expansion pipe top through the tensioning cover, make external pipeline and connector be connected inseparabler, reset after external pipe cooling, also can drive fixed cover simultaneously and reset, make external pipeline continue and connector zonulae occludens, further promotion the sealing performance of valve body.

Description

Telescopic sealed butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a telescopic sealed butterfly valve.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the butterfly valve for the on-off control of low-pressure pipeline media, and refers to a valve of which the closing part is a circular disc and rotates around a valve shaft to open and close, the valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting and throttling on a pipeline, and the butterfly valve opening and closing part is a circular disc-shaped butterfly plate and rotates around the axis of the butterfly valve body so as to achieve the purpose of opening and closing or regulating;

traditional metal seal butterfly valve has some problems in the in-process of using, and when butterfly valve and pipeline butt joint installation, the pipeline receives the influence of temperature easily and produces the phenomenon of the shrinkage that rises with heat to change the diameter of pipeline, the leakproofness of the butterfly valve that makes is poor, consequently, the utility model provides a telescopic seal butterfly valve is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a telescopic sealed butterfly valve has solved among the prior art because of the shrinkage phenomenon that rises with heat leads to the poor problem of pipeline and butterfly valve leakproofness.

For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes: a telescopic sealing butterfly valve comprises a valve body, a valve plate and a valve seat, wherein the valve plate is rotatably arranged in the valve body, the valve seat is arranged on the outer side of the valve body, a valve rod is rotatably arranged at the top end of the valve seat, connectors are symmetrically arranged on the outer side of the valve body, a movable pipe is arranged on one side of each connector, and a telescopic mechanism is arranged in each movable pipe;

telescopic machanism is including fixed cover, tensioning cover and threaded rod, the inside of movable tube is equipped with fixed cover, one side and the connector fixed connection of fixed cover, the inside of movable tube is equipped with the tensioning cover, the one end tilt up of fixed cover meets with the inner wall of tensioning cover, the outside of fixed cover is equipped with the threaded rod.

The further improvement lies in that: one end of the threaded rod penetrates through the inner part of the movable tube, and a sealing gasket is arranged between the fixed sleeve and the tensioning sleeve.

The further improvement is that: one end of the movable pipe is connected with an articulated frame, a connecting pipe is arranged in the articulated frame and connected with the movable pipe, and the connecting pipe is structurally designed into a corrugated pipe.

The further improvement is that: articulated frame comprises a plurality of dwangs, every the both ends symmetry of dwang is equipped with the pin joint, and is adjacent the pin joint of dwang is articulated each other through the round pin axle.

The further improvement is that: the top of valve rod is equipped with the hand wheel, the outside of hand wheel is equipped with the protective sheath, the outside of protective sheath is equipped with anti-skidding stripe, the valve rod passes through drive mechanism and is connected with the valve plate.

The further improvement lies in that: the drive mechanism includes pivot, worm and turbine, the bottom of valve rod is connected with the worm, the inside of disk seat is rotated and is installed the turbine, the outer wall closure of worm and turbine, the inside of turbine is fixed with the pivot, the one end and the valve plate of pivot are connected.

The utility model has the advantages that: when the external pipeline expands with heat and contracts with cold, the external pipeline can push the tensioning sleeve to move upwards through the inclined end of the fixing sleeve and tightly push the movable pipe through the tensioning sleeve, so that the external pipeline is more tightly connected with the connector, the external pipeline resets after being cooled, and meanwhile, the fixing sleeve is driven to reset, so that the external pipeline is continuously and tightly connected with the connector, and the sealing performance of the valve body is further improved; because the connecting pipe is a corrugated pipe, the connecting pipe can rotate up and down together with the hinge frame, so that one end of the connecting head can slightly rotate upwards or downwards, and the valve body can be conveniently connected with an external pipeline with an elbow.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of the valve body structure of the present invention;

fig. 4 is the internal structure diagram of the valve seat of the present invention.

Wherein: 1. a valve body; 2. a valve plate; 3. a valve seat; 4. a valve stem; 5. a rotating shaft; 6. a connector; 7. a movable tube; 8. fixing a sleeve; 9. a tensioning sleeve; 10. a threaded rod; 11. a gasket; 12. a hinged frame; 13. a connecting pipe; 14. a worm; 15. a turbine.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments are combined to further detail the present invention, and the present embodiment is only used to explain the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1, 2, 3, 4 show, this embodiment has proposed a telescopic sealed butterfly valve, including valve body 1, valve plate 2 and disk seat 3, valve plate 2 is installed in the inside rotation of valve body 1, the outside of valve body 1 is equipped with disk seat 3, the top of disk seat 3 is rotated and is installed valve rod 4, the outside symmetry of valve body 1 is equipped with connector 6, one side of connector 6 is equipped with movable tube 7, the inside of movable tube 7 is equipped with telescopic machanism, the top of valve rod 4 is equipped with the hand wheel, the outside of hand wheel is equipped with the protective sheath, the outside of protective sheath is equipped with anti-skidding stripe, valve rod 4 is connected with valve plate 2 through drive mechanism, when external pipeline is connected with valve body 1, inserts the inside of valve body 1 with external pipeline earlier, docks the ring flange of external pipeline's ring flange and the flange of valve body 1 one end again, later inserts the bolt in the ring flange to the reuse nut is screwed up it and is accomplished external pipeline and is connected with valve body 1, and the pipeline has the condition of heat shrinkage and pipeline, telescopic machanism can compensate the pipeline, prevents that the pipeline leakage, has the safety cover that has on the hand wheel, can avoid people's rotation to produce the screw when the valve rod 4, the valve rod and drive mechanism that skids drive mechanism that the anti-skidding, and the drive mechanism that the anti-skidding.

Drive mechanism includes pivot 5, worm 14 and turbine 15, the bottom of valve rod 4 is connected with worm 14, turbine 15 is installed to the inside rotation of disk seat 3, worm 14 and turbine 15's outer wall meshing, the inside of turbine 15 is fixed with pivot 5, the one end and the valve plate 2 of pivot 5 are connected, twist the valve rod 4 rotation at disk seat 3 top through the hand wheel, and valve rod 4 drives worm 14 and rotates, because of the outer wall of worm 14 with turbine 15 to the meshing, so worm 14 drives turbine 15 and rotates to turbine 15 drives valve plate 2 through pivot 5 and rotates at 1 internal rotation of valve body, and then can control the switch of valve body 1 through rotating valve rod 4.

The telescopic machanism includes fixed cover 8, tensioning cover 9 and threaded rod 10, the inside of movable tube 7 is equipped with fixed cover 8, one side and the 6 fixed connection of connector of fixed cover 8, the inside of movable tube 7 is equipped with tensioning cover 9, the one end tilt up of fixed cover 8 meets with the inner wall of tensioning cover 9, the outside of fixed cover 8 is equipped with threaded rod 10, the one end of threaded rod 10 runs through in the inside of movable tube 7, be equipped with sealed the pad 11 between fixed cover 8 and the tensioning cover 9, place movable tube 7 in the one end of fixed cover 8 earlier, insert the outside of fixed cover 8 with movable tube 7 again to the threaded rod 10 that makes the fixed cover 8 outside together inserts the inside of movable tube 7, afterwards use the nut to screw up them, just make movable tube 7 link together with fixed cover 8, when the external pipeline takes place expend with heat and contract with cold, the one end rebound that fixed cover 8 slopes can be pushed up to external pipeline at first, thereby utilize the tight cover 9 rebound of slope pipe extrusion tensioning, and push up movable tube 7 tightly through tensioning cover 9, it is inseparabler to make external pipeline be connected with connector 6, reset after external pipe cooling, also can drive fixed cover 8 simultaneously and reset, thereby make tensioning cover 9 also reset with movable tube 7, continue with connector 6 zonulae occludens, the sealed 11 leakproofness of packing of rubber material is good, the setting is between fixed cover 8 and tensioning cover 9, further promotion the sealing performance of connector 6.

The one end of activity pipe 7 is connected with articulated frame 12, the inside of articulated frame 12 is equipped with connecting pipe 13, the internal connection of connecting pipe 13 and activity pipe 7, the structure of connecting pipe 13 is established to the bellows, articulated frame 12 comprises a plurality of dwangs, every the both ends symmetry of dwang is equipped with the pin joint, and is adjacent the pin joint of dwang is articulated each other through the round pin axle, is the bellows because of the structure of connecting pipe 13, and it can be with articulated frame 12 tilting together to enable the one end of connector 6 upwards slightly or rotate downwards, make things convenient for just valve body 1 and the external pipe connection who has the elbow.

The telescopic sealing butterfly valve is characterized in that a telescopic mechanism is arranged inside a movable pipe 7, the telescopic mechanism is composed of a fixed sleeve 8, a tensioning sleeve 9 and a threaded rod 10, the threaded rod 10 is firstly utilized to connect the movable pipe 7 with the fixed sleeve 8, when the external pipeline expands with heat and contracts with cold, the external pipeline can push one inclined end of the fixed sleeve 8 to move upwards at first, so that the tensioning sleeve 9 is extruded by the inclined pipe to move upwards, the movable pipe 7 is pushed tightly by the tensioning sleeve 9, the external pipeline is connected with a connector 6 more tightly, the fixed sleeve 8 is reset after the external pipeline is cooled, the external pipeline is driven to reset, the external pipeline is continuously connected with the connector 6 tightly, and the sealing performance of the valve body 1 is further improved; because the structure of the connecting pipe 13 is a corrugated pipe, the connecting pipe can rotate up and down together with the hinge frame 12, so that one end of the connector 6 can slightly rotate upwards or downwards, and the valve body 1 can be conveniently connected with an external pipeline with an elbow.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a telescopic sealed butterfly valve, includes valve body (1), valve plate (2) and disk seat (3), its characterized in that: the valve plate (2) is rotatably mounted inside the valve body (1), the valve seat (3) is arranged on the outer side of the valve body (1), the valve rod (4) is rotatably mounted at the top end of the valve seat (3), the connectors (6) are symmetrically arranged on the outer side of the valve body (1), the movable pipe (7) is arranged on one side of each connector (6), and the telescopic mechanism is arranged inside each movable pipe (7);

telescopic machanism is including fixed cover (8), tensioning cover (9) and threaded rod (10), the inside of movable tube (7) is equipped with fixed cover (8), one side and connector (6) fixed connection of fixed cover (8), the inside of movable tube (7) is equipped with tensioning cover (9), the one end tilt up of fixed cover (8) and meet with the inner wall of tensioning cover (9), the outside of fixed cover (8) is equipped with threaded rod (10).

2. The telescopic sealing butterfly valve of claim 1, wherein: one end of the threaded rod (10) penetrates through the inner part of the movable tube (7), and a sealing gasket (11) is arranged between the fixed sleeve (8) and the tensioning sleeve (9).

3. The telescopic sealing butterfly valve of claim 1, wherein: the one end of activity pipe (7) is connected with articulated frame (12), the inside of articulated frame (12) is equipped with connecting pipe (13), the internal connection of connecting pipe (13) and activity pipe (7), the bellows is established to the structure of connecting pipe (13).

4. The telescoping seal butterfly valve of claim 3, wherein: articulated frame (12) comprise a plurality of dwangs, every the both ends symmetry of dwang is equipped with the pin joint, and is adjacent the pin joint of dwang is articulated each other through the round pin axle.

5. The telescopic sealing butterfly valve of claim 1, wherein: the top of valve rod (4) is equipped with the hand wheel, the outside of hand wheel is equipped with the protective sheath, the outside of protective sheath is equipped with anti-skidding stripe, valve rod (4) are connected with valve plate (2) through drive mechanism.

6. The telescoping seal butterfly valve of claim 5, wherein: drive mechanism includes pivot (5), worm (14) and turbine (15), the bottom of valve rod (4) is connected with worm (14), turbine (15) are installed in the inside rotation of disk seat (3), the outer wall meshing of worm (14) and turbine (15), the inside of turbine (15) is fixed with pivot (5), the one end and the valve plate (2) of pivot (5) are connected.