CN215059558U

CN215059558U - Metal sealing butterfly valve

Info

Publication number: CN215059558U
Application number: CN202121502408.0U
Authority: CN
Inventors: 佟泽
Original assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Current assignee: Tianjin Tanggu Tianshun Valve Industrial Co ltd
Priority date: 2021-07-04
Filing date: 2021-07-04
Publication date: 2021-12-07
Anticipated expiration: 2031-07-04

Abstract

The embodiment of the application discloses metal seal butterfly valve, which comprises a valve body, the top of valve body left end is connected with the seal box, the left end swing joint of seal box inner chamber has worm two, the bottom of worm two runs through the lateral wall of valve body and extends to the inner chamber of valve body, the top of worm two runs through the lateral wall of seal box and extends to the top of seal box, the right side swing joint of seal box inner chamber has dwang three. The application provides a pair of metal seal butterfly valve, through the setting of two worms and a gear meshing, the rotation of two worms can drive a gear and rotate, and a gear drives a screw rod and rotates, and the rotation of screw rod one makes the screw thread cover remove in the direction at screw rod one place, and the screw thread cover drives the connecting cylinder and removes, and when the connecting cylinder moved right, the connecting cylinder can scrape the impurity of the inner wall surface adhesion of valve body, the in close contact with of the valve plate of being convenient for and valve body lateral wall.

Description

Metal sealing butterfly valve

Technical Field

The application relates to the butterfly valve field, more specifically relates to a metal seal butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating a closing member (a valve clack or a butterfly plate) around a valve shaft, wherein when the existing metal sealing butterfly valve is used, impurities can be adhered to the inner surface of the butterfly valve and the surface of a valve plate, and influence on the sealing property of the butterfly valve is influenced by the impurities, so that the butterfly valve is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides a metal seal butterfly valve, which comprises a valve body, wherein a seal box is connected to the top of the left end of the valve body, a worm II is movably connected to the left end of the inner cavity of the seal box, the bottom end of the worm II penetrates through the side wall of the valve body and extends into the inner cavity of the valve body, the top end of the worm II penetrates through the side wall of the seal box and extends to the upper part of the seal box, a rotating rod III is movably connected to the right side of the inner cavity of the seal box, a coil spring is connected to the outer ring at the top end of the rotating rod III, the other end of the coil spring is connected with one end of a limiting rope, the limiting rope is wound on the outer ring of the coil spring, the other end of the limiting rope is connected with the side wall of the worm II, a worm III is movably connected to the front side of the valve body, the left end of the inner cavity of the valve body is movably connected with an impurity removing structure, and a valve plate is movably connected to the right side of the inner cavity of the valve body, the top of valve plate is connected with the axis of rotation, the top of axis of rotation runs through the lateral wall of valve body and extends to the outside of valve body, the top swing joint of axis of rotation and valve body.

Preferably, the impurity removing structure comprises a connecting cylinder, a thread sleeve is connected to the middle of the top of an inner cavity of the connecting cylinder, a first screw rod is in thread connection with the inner cavity of the thread sleeve, the left end of the first screw rod extends to the outer side of the connecting cylinder, a first fixing sleeve is movably sleeved on the outer ring of the left end of the first screw rod, the top of the fixing sleeve is connected with the top of the inner cavity of the valve body, a first gear is connected to the left end of the first screw rod, the bottom end of a second gear is meshed with the first gear, a supporting rod is connected to the front side of the top of the inner cavity of the connecting cylinder, a first worm is movably sleeved on the inner ring of the other end of the supporting rod, a first rotating rod is movably connected to the inner cavity of the other end of the supporting rod, a second gear is connected to the other side of the second gear, and a scraper is connected to the other end of the second rotating rod, the scraper is matched with the valve plate, the left end of the first worm is connected with a third gear, and the third worm is matched with the third gear.

Preferably, transparent glass is inlaid at the top of the inner cavity of the sealing box, the outer ring of the three top ends of the rotating rod is connected with a limiting plate, and the limiting rope is in contact with the top of the limiting plate.

Preferably, the right side of the connecting cylinder is connected with an annular scraper, the front side of the left end of the connecting cylinder is provided with a slot, and the worm is located in the slotted inner cavity.

Preferably, the second worm, the third worm and the rotating shaft are sealed with the side wall of the valve body through packing.

The beneficial effect of this application:

the application provides a pair of metal seal butterfly valve, through the setting of two worms and a gear meshing, the rotation of two worms can drive a gear and rotate, and a gear drives a screw rod and rotates, and the rotation of screw rod one makes the screw thread cover remove in the direction at screw rod one place, and the screw thread cover drives the connecting cylinder and removes, and when the connecting cylinder moved right, the connecting cylinder can scrape the impurity of the inner wall surface adhesion of valve body, the in close contact with of the valve plate of being convenient for and valve body lateral wall.

The application provides a pair of metal seal butterfly valve, through the setting of each structure in the seal box, when two worms rotate, two worms can make spacing rope winding on two worms, spacing rope and coil spring separation, or two reverse rotations of worm make spacing rope and two separation of worms, the resilience force of coil spring makes spacing rope rewind on the outer lane of coil spring, the user can judge the displacement distance of connecting cylinder according to the state of spacing rope, the impurity of being convenient for is got rid of the structure and is struck off the impurity on this butterfly valve.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic front view of the novel structure;

FIG. 2 is an exploded view of the novel structure of FIG. 1;

fig. 3 is an explosion diagram of the novel structure for removing impurities.

In the figure: 1. a valve body; 2. a valve plate; 3. a rotating shaft; 4. a sealing box; 5. a worm III; 6. an impurity removal structure; 7. a second worm; 8. rotating the rod III; 9. a coil spring; 10. a limiting rope; 11. a first screw rod; 12. fixing a sleeve; 13. a first gear; 14. a support bar; 15. a connecting cylinder; 16. a threaded sleeve; 17. a first worm; 18. a third gear; 19. a second gear; 20. a scraper.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1-3, a metal sealing butterfly valve comprises a valve body 1, a sealing box 4 is connected to the top of the left end of the valve body 1, a worm gear 7 is movably connected to the left end of the inner cavity of the sealing box 4, the bottom end of the worm gear 7 penetrates through the side wall of the valve body 1 and extends into the inner cavity of the valve body 1, the top end of the worm gear 7 penetrates through the side wall of the sealing box 4 and extends to the upper side of the sealing box 4, a rotating rod three 8 is movably connected to the right side of the inner cavity of the sealing box 4, a coil spring 9 is connected to the outer ring of the top end of the rotating rod three 8, the other end of the coil spring 9 is connected to one end of a limiting rope 10, the limiting rope 10 is wound on the outer ring of the coil spring 9, the other end of the limiting rope 10 is connected to the side wall of the worm gear 7, the worm gear 7 can wind the worm gear 10 on the second gear 7 by the arrangement of the structures in the sealing box 4 when the worm gear 7 rotates, the limiting rope 10 is separated from the coil spring 9, or the worm II 7 rotates reversely to separate the limiting rope 10 from the worm II 7, the resilience force of the coil spring 9 enables the limiting rope 10 to be wound on the outer ring of the coil spring 9 again, a user can judge the rotation condition of the worm II 7 according to the state of the limiting rope 10, the front side of the valve body 1 is movably connected with the worm III 5, the left end of the inner cavity of the valve body 1 is movably connected with the impurity removing structure 6, the right side of the inner cavity of the valve body 1 is movably connected with the valve plate 2, the top of the valve plate 2 is connected with the rotating shaft 3, the top end of the rotating shaft 3 penetrates through the side wall of the valve body 1 and extends to the outer side of the valve body 1, the rotating shaft 3 is movably connected with the top of the valve body 1, through the arrangement of the rotating shaft 3 and the valve plate 2, the rotation of the rotating shaft 3 can drive the valve plate 2 to rotate, and the opening and closing of the butterfly valve are controlled,

wherein, the impurity removing structure 6 comprises a connecting cylinder 15, the middle part of the top of the inner cavity of the connecting cylinder 15 is connected with a threaded sleeve 16, the inner cavity of the threaded sleeve 16 is in threaded connection with a first screw rod 11, the left end of the first screw rod 11 extends to the outer side of the connecting cylinder 15, the outer ring of the left end of the first screw rod 11 is movably sleeved with a fixed sleeve 12, the top of the fixed sleeve 12 is connected with the top of the inner cavity of the valve body 1, the left end of the first screw rod 11 is connected with a first gear 13, the bottom end of a second worm 7 is meshed with the first gear 13, the rotation of the second worm 7 can drive the first gear 13 to rotate, the first gear 13 drives the first screw rod 11 to rotate, the rotation of the first screw rod 11 enables the threaded sleeve 16 to move in the direction of the first screw rod 11, the threaded sleeve 16 drives the connecting cylinder 15 to move, when the connecting cylinder 15 moves rightwards, the connecting cylinder can scrape impurities adhered to the inner wall surface of the valve body 1, the valve plate 2 is convenient to be in close contact with the side wall of the valve body 1, the front side of the top of the inner cavity of the connecting cylinder 15 is connected with a supporting rod 14, the connecting cylinder 15 can drive the scraper 20 to move through the arrangement of the supporting rod 14, the scraper 20 is convenient to be in contact with the valve plate 2, when the scraper 20 is in contact with the valve plate 2, the worm III 5 is meshed with the gear III 18, the inner cavity of the other end of the supporting rod 14 is movably sleeved with the worm I17, the outer ring of the other end of the worm I17 is movably sleeved with the support, the inner cavity of the other end of the support is movably connected with the rotating rod I, the inner side of the rotating rod I is connected with the gear II 19, the other side of the gear II is connected with one end of the rotating rod II, the worm I17 is meshed with the gear II 19, the other end of the rotating rod II is connected with the scraper 20, the scraper 20 is matched with the valve plate 2, the left end of the worm I17 is connected with the gear III 18, the worm III 5 is matched with the gear III 18 through the arrangement of the worm III 5, when the worm three 5 is meshed with the gear three 18, the rotation of the worm three 5 can drive the gear three 18 to rotate, the gear three 18 drives the gear two 19 to rotate through the worm one 17, the gear two 19 drives the scraper 20 to rotate through the rotating gear two, and the scraper 20 can scrape impurities on the side wall of the valve plate 2.

Wherein, the top of 4 inner chambers of seal box is inlayed and is had clear glass, through clear glass's setting, convenient to use person observes the state of spacing rope 10, and the user can judge the displacement of connecting cylinder 15 through the state of spacing rope 10, and the outer lane on the three 8 tops of dwang is connected with the limiting plate, and spacing rope 10 contacts with the top of limiting plate, through the setting of limiting plate, and the winding of limiting rope 10 of being convenient for is on coil spring 9's surface.

Wherein, the right side of connecting cylinder 15 is connected with annular scraper, and the front side of connecting cylinder 15 left end is equipped with the fluting, and three 5 of worms are located grooved inner chamber, through the setting of annular scraper, can scrape the impurity on the valve body 1 lateral wall, and grooved setting, three 5 of worms can not influence the removal of connecting cylinder 15.

Wherein, the second worm 7, the third worm 5 and the rotating shaft 3 are sealed with the side wall of the valve body 1 through packing, the sealing performance of the butterfly valve is improved, and the butterfly valve is convenient to use.

To sum up, when the valve body 1 and the valve plate 2 need to be cleaned of impurities at a contact position, a user rotates the rotating shaft 3, the rotating shaft 3 drives the valve plate 2 to rotate, the valve plate 2 and the valve body 1 are in a vertical state, the user rotates the second worm 7, the rotation of the second worm 7 enables the limiting rope 10 to be wound on the surface of the second worm 7, the rotation of the second worm 7 drives the first gear 13 to rotate, the first gear 13 drives the first screw 11 to rotate, the rotation of the first screw 11 enables the threaded sleeve 16 to move in the direction of the first screw 11, the threaded sleeve 16 drives the connecting cylinder 15 to move, the connecting cylinder 15 moves rightwards, when the limiting rope 10 on the coil spring 9 is wound on the second worm 7, the user stops rotating the second worm 7, the connecting cylinder 15 scrapes off the impurities at the contact position of the valve body 1 and the valve plate 2, the third worm 5 is meshed with the third gear 18, the scraper 20 is in contact with the valve plate 2, the user rotates the worm three 5, and the rotation of worm three 5 can drive gear three 18 and rotate, and gear three 18 drives gear two 19 through worm one 17 and rotates, and gear two 19 drives scraper blade 20 through rotating two and rotates, and scraper blade 20 can scrape the impurity on the 2 lateral walls of valve plate, is convenient for this butterfly valve's closure.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a metal seal butterfly valve, includes valve body (1), its characterized in that, the top of valve body (1) left end is connected with seal box (4), the left end swing joint of seal box (4) inner chamber has worm two (7), the bottom of worm two (7) runs through the lateral wall of valve body (1) and extends to the inner chamber of valve body (1), the top of worm two (7) runs through the lateral wall of seal box (4) and extends to the top of seal box (4), the right side swing joint of seal box (4) inner chamber has dwang three (8), the outer lane on dwang three (8) top is connected with coil spring (9), the other end of coil spring (9) is connected with the one end of spacing rope (10), spacing rope (10) twines on the outer lane of coil spring (9), just the other end of spacing rope (10) is connected with the lateral wall of worm two (7), the utility model discloses a valve body, including valve body (1), front side swing joint of valve body (1) has three (5) worms, the left end swing joint of valve body (1) inner chamber has impurity to get rid of structure (6), the right side swing joint of valve body (1) inner chamber has valve plate (2), the top of valve plate (2) is connected with axis of rotation (3), the top of axis of rotation (3) runs through the lateral wall of valve body (1) and extends to the outside of valve body (1), axis of rotation (3) and the top swing joint of valve body (1).

2. The metal sealing butterfly valve according to claim 1, wherein the impurity removing structure (6) comprises a connecting cylinder (15), a threaded sleeve (16) is connected to the middle of the top of the inner cavity of the connecting cylinder (15), a first screw (11) is connected to the inner cavity of the threaded sleeve (16) in a threaded manner, the left end of the first screw (11) extends to the outer side of the connecting cylinder (15), a fixed sleeve (12) is movably sleeved on the outer ring of the left end of the first screw (11), the top of the fixed sleeve (12) is connected with the top of the inner cavity of the valve body (1), a first gear (13) is connected to the left end of the first screw (11), the bottom end of a second worm (7) is meshed with the first gear (13), a support rod (14) is connected to the front side of the top of the inner cavity of the connecting cylinder (15), a first worm (17) is movably sleeved on the inner cavity of the other end of the support rod (14), the support has been cup jointed in the outer lane activity of the first worm (17) other end, and the inner chamber swing joint of the support other end has dwang one, and the inboard of dwang one is connected with gear two (19), the another side of gear two (19) is connected with the one end of dwang two, and the other end of dwang two is connected with scraper blade (20), scraper blade (20) and valve plate (2) adaptation, the left end of worm one (17) is connected with gear three (18), three (5) of worm and gear three (18) adaptations.

3. The metal sealing butterfly valve according to claim 1, wherein a transparent glass is embedded at the top of the inner cavity of the sealing box (4), a limiting plate is connected to the outer ring of the top end of the rotating rod III (8), and the limiting rope (10) is in contact with the top of the limiting plate.

4. The metal seal butterfly valve according to claim 2, characterized in that an annular scraper is connected to the right side of the connecting cylinder (15), the front side of the left end of the connecting cylinder (15) is provided with a slot, and the worm gear (5) is located in the inner cavity of the slot.

5. The metal seal butterfly valve according to claim 1, characterized in that the second worm (7), the third worm (5) and the rotating shaft (3) are sealed with the side wall of the valve body (1) by packing.