CN218408560U

CN218408560U - Butterfly valve with good protection performance

Info

Publication number: CN218408560U
Application number: CN202222544717.5U
Authority: CN
Inventors: 郭建林; 王小浪
Original assignee: Suzhou Boyun Valve Co ltd
Current assignee: Suzhou Boyun Valve Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-31
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a butterfly valve that barrier propterty is good, including butterfly valve body and body, the first ring flange of fixedly connected with on the butterfly valve body, fixedly connected with second ring flange on the body is equipped with the through-hole of mutually supporting on first ring flange and the second ring flange, is equipped with the connecting seat on the butterfly valve body, is equipped with the dwang on the connecting seat, fixedly connected with swing handle on the dwang, is equipped with the bolt on the through-hole, and the spiro union has the nut on the bolt, has seted up the draw-in groove on the second ring flange, draw-in groove and bolt looks adaptation. The utility model discloses a set up draw-in groove and bolt block, reached and fixed the one end of bolt to moving the completion back twisting, the bolt can not rotate, thereby first ring flange and second ring flange can not become flexible, and when twisting the nut to the bolt simultaneously, the bolt can not rotate, thereby conveniently twist the effect of moving the nut.

Description

Butterfly valve with good protection performance

Technical Field

The utility model relates to a butterfly valve technical field specifically is a butterfly valve that barrier propterty is good.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk.

The butterfly valve body with the good sealing performance comprises a butterfly valve body, wherein a shaft sleeve is communicated with the center of the top of the butterfly valve body, a valve rod is connected to an inner cavity of the shaft sleeve in a bolted mode, a connecting seat is connected to the top of the shaft sleeve in a bolted mode, a connecting rod is connected to the center of the top of the connecting seat in a rotating mode, a rotating handle is connected to the center of the top of the connecting rod in a bolted mode, and first flange plates are integrally formed on two sides of the butterfly valve body. The utility model discloses a cooperation of second ring flange, sealing rubber pad, third ring flange can fasten the butterfly valve body sealed, has strengthened the sealing performance of butterfly valve body, prevents that liquid leakage from appearing in the butterfly valve body, reduces the maintenance frequency of butterfly valve body, has reduced staff's intensity of labour simultaneously, has prolonged the life of butterfly valve body simultaneously, and spraying paint can protect butterfly valve body surface simultaneously, prevents that rusty condition from appearing in butterfly valve body surface.

However, when the butterfly valve is used, nuts and bolts at the joint of the two flanges are easy to loosen, so that the butterfly valve leaks and normal use is affected, and the butterfly valve with good protection performance is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a butterfly valve that barrier propterty is good to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a butterfly valve that barrier propterty is good, includes butterfly valve body and body, the first ring flange of fixedly connected with on the butterfly valve body, fixedly connected with second ring flange on the body, be equipped with the through-hole of mutually supporting on first ring flange and the second ring flange, be equipped with the connecting seat on the butterfly valve body, be equipped with the dwang on the connecting seat, fixedly connected with swing handle on the dwang, be equipped with the bolt on the through-hole, the spiro union has the nut on the bolt, the draw-in groove has been seted up on the second ring flange, draw-in groove and bolt looks adaptation.

As a further preferred aspect of the present invention, the nut is attached to the first flange.

As a further preferred option of the technical scheme, a limiting mechanism for limiting and fixing the nut is arranged on the first flange, the limiting mechanism includes a supporting block fixedly connected to the first flange, a first piston cylinder is fixedly connected to the supporting block, a first sealing plug is slidably connected to the first piston cylinder, a first piston rod is fixedly connected to the first sealing plug, and a limiting block is fixedly connected to the first piston rod.

As a further preferred aspect of the present technical solution, the limiting mechanism further includes a first spring sleeved on the first piston rod, and two ends of the first spring are respectively fixedly connected to the first piston cylinder and the first sealing plug.

As a further preferred feature of the present technical solution, the limiting mechanism further includes a placing groove formed in the first flange, the placing groove is fixedly connected with a second piston cylinder, the second piston cylinder is slidably connected with a second sealing plug, the second sealing plug is fixedly connected with a second piston rod, and the second piston rod abuts against the nut.

As a further preferable feature of the present technical solution, the limiting mechanism further includes a second spring disposed in the second piston cylinder, and two ends of the second spring are respectively and fixedly connected to the second piston cylinder and the second sealing plug.

As a further preferred feature of the present technical solution, the limiting mechanism further includes a delivery pipe, and the first piston cylinder and the second piston cylinder are fixedly communicated through the delivery pipe.

As a further preferred of the technical scheme, one end, far away from the limiting block, of the first piston rod penetrates through the first piston cylinder, and a stop block is fixedly connected to one end, far away from the limiting block, of the first piston rod.

The utility model provides a butterfly valve that barrier propterty is good possesses following beneficial effect:

(1) The utility model discloses a set up draw-in groove and bolt block, reached the one end of fixing the bolt to moving the completion back twisting, the bolt can not rotate, thereby first ring flange and second ring flange can not become flexible, and when twisting the nut to the bolt simultaneously, the bolt can not rotate, thereby conveniently twists the effect of moving the nut.

(2) The utility model discloses a set up stop gear, reached and carried out spacing fixed to nut and bolt to make nut and bolt in use can not become flexible, thereby the leakage can not appear in the butterfly valve, has strengthened the protective effect of butterfly valve, has avoided when the long-time use of butterfly valve, and nut and bolt take place not hard up, thereby the effect of butterfly valve leakage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a first schematic sectional view of the limiting mechanism of the present invention;

fig. 4 is a schematic sectional structure diagram of the limiting mechanism of the present invention.

In the figure: 1. a pipe body; 11. a second flange plate; 12. a card slot; 13. a bolt; 14. a nut; 2. a butterfly valve body; 21. a first flange plate; 22. a through hole; 23. turning a handle; 24. rotating the rod; 25. a connecting seat; 3. a supporting block; 31. a first piston cylinder; 32. a first piston rod; 33. a limiting block; 34. a first sealing plug; 35. a first spring; 36. a delivery pipe; 37. a stopper; 4. a second piston cylinder; 41. a second piston rod; 42. a second sealing plug; 43. a second spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

The utility model provides a technical scheme: as shown in fig. 1 and fig. 2, in this embodiment, a butterfly valve with good protection performance, including butterfly valve body 2 and pipe body 1, first ring flange 21 of fixedly connected with is on butterfly valve body 2, second ring flange 11 of fixedly connected with is on pipe body 1, be equipped with through-hole 22 of mutually supporting on first ring flange 21 and the second ring flange 11, be equipped with connecting seat 25 on butterfly valve body 2, be equipped with dwang 24 on the connecting seat 25, fixedly connected with swing handle 23 on the dwang 24, be equipped with bolt 13 on the through-hole 22, the spiro union has nut 14 on the bolt 13, draw-in groove 12 has been seted up on the second ring flange 11, draw-in groove 12 and bolt 13 looks adaptation.

When the butterfly valve is installed, the first flange plate 21 on the butterfly valve body 2 and the through hole 22 on the second flange plate 11 on the pipe body 1 are aligned, then a sealing gasket is placed between the first flange plate 21 and the second flange plate 11, then the bolt 13 is placed along the clamping groove 12 and the through hole 22, the bolt 13 is clamped with the clamping groove 12, the bottom surface of the bolt 13 is attached to the bottom surface of the clamping groove 12, and then the nut 14 is screwed at the end of the first flange plate 21, so that the first flange plate 21 and the second flange plate 11 are fixed.

Through the cooperation that sets up draw-in groove 12 and bolt 13 for fix the one end of bolt 13, thereby move the completion back twisting, bolt 13 can not rotate, thereby first ring flange 21 and second ring flange 11 can not become flexible, and when moving nut 14 to bolt 13 twisting simultaneously, bolt 13 can not rotate, thereby conveniently twist the effect of moving nut 14.

As shown in fig. 1 and 2, the nut 14 is engaged with the first flange 21.

The nut 14 is arranged to be attached to the first flange 21, so that the first flange 21 and the second flange 11 are fixed to form a seal.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a limiting mechanism for limiting and fixing the nut 14 is arranged on the first flange 21, the limiting mechanism includes a supporting block 3 fixedly connected to the first flange 21, a first piston cylinder 31 is fixedly connected to the supporting block 3, a first sealing plug 34 is slidably connected to the first piston cylinder 31, a first piston rod 32 is fixedly connected to the first sealing plug 34, and a limiting block 33 is fixedly connected to the first piston rod 32.

The limiting mechanism further comprises a first spring 35 sleeved on the first piston rod 32, and two ends of the first spring 35 are fixedly connected with the first piston cylinder 31 and the first sealing plug 34 respectively.

The limiting mechanism further comprises a placing groove formed in the first flange plate 21, a second piston cylinder 4 is fixedly connected to the placing groove, a second sealing plug 42 is slidably connected to the second piston cylinder 4, a second piston rod 41 is fixedly connected to the second sealing plug 42, and the second piston rod 41 abuts against the nut 14.

The limiting mechanism further comprises a second spring 43 placed in the second piston cylinder 4, and two ends of the second spring 43 are fixedly connected with the second piston cylinder 4 and the second sealing plug 42 respectively.

The limiting mechanism further comprises a delivery pipe 36, and the first piston cylinder 31 and the second piston cylinder 4 are fixedly communicated through the delivery pipe 36.

When the nut 14 is screwed, the nut 14 gradually approaches one end of the first flange 21, and the second piston rod 41 abuts against the nut 14, so that the second piston rod 41 moves towards the end close to the delivery pipe 36, and the gas in the second piston cylinder 4 is delivered to the first piston cylinder 31 through the delivery pipe 36, so that the first sealing plug 34 in the first piston cylinder 31 drives the first piston rod 32 to slide towards the end far from the delivery pipe 36, and therefore after the nut 14 is screwed and attached to the first flange 21, at this time, the first piston rod 32 drives the limit block 33 to contact with the bolt 13, and the limit block 33 is attached to the nut 14.

Reached and carried out spacing fixed to nut 14 and bolt 13 to make nut 14 and bolt 13 in use can not become flexible, thereby the leakage can not appear in the butterfly valve, strengthened the protective effect of butterfly valve, avoided when the long-time use of butterfly valve, nut 14 and bolt 13 take place not hard up, thereby the leaky effect of butterfly valve.

As shown in fig. 2 and fig. 3, one end of the first piston rod 32 away from the stopper 33 penetrates through the first piston cylinder 31, and a stopper 37 is fixedly connected to one end of the first piston rod 32 away from the stopper 33.

The stopper 37 is manually pulled when the butterfly valve needs to be disassembled, so that the stopper 33 is far away from the bolt 13 and the nut 14, the nut 14 is manually screwed, and then the first piston cylinder 31 and the second piston cylinder 4 are reset through the first spring 35 and the second spring 43.

The utility model provides a butterfly valve that barrier propterty is good, concrete theory of operation as follows: when the butterfly valve is installed, the first flange plate 21 on the butterfly valve body 2 and the through hole 22 on the second flange plate 11 on the pipe body 1 are aligned, then a sealing gasket is placed between the first flange plate 21 and the second flange plate 11, then the bolt 13 is placed along the clamping groove 12 and the through hole 22, the bolt 13 is clamped with the clamping groove 12, the bottom surface of the bolt 13 is attached to the bottom surface of the clamping groove 12, and then the nut 14 is screwed at the end of the first flange plate 21, so that the first flange plate 21 and the second flange plate 11 are fixed.

Through the cooperation that sets up draw-in groove 12 and bolt 13 for fix the one end of bolt 13, thereby move the completion back twisting, bolt 13 can not rotate, thereby first ring flange 21 and second ring flange 11 can not become flexible, and when screwing nut 14 to bolt 13 simultaneously, bolt 13 can not rotate, thereby conveniently twist the effect of moving nut 14.

When the nut 14 is screwed, the nut 14 gradually approaches one end of the first flange 21, and the second piston rod 41 abuts against the nut 14, so that the second piston rod 41 moves towards the end close to the delivery pipe 36, and the gas in the second piston cylinder 4 is delivered to the first piston cylinder 31 through the delivery pipe 36, so that the first sealing plug 34 in the first piston cylinder 31 drives the first piston rod 32 to slide towards the end far from the delivery pipe 36, and thus after the nut 14 is screwed and attached to the first flange 21, at this time, the first piston rod 32 drives the stopper 33 to contact with the bolt 13, and the stopper 33 is attached to the nut 14.

Reached and carried out spacing fixed to nut 14 and bolt 13 to make nut 14 and bolt 13 in use can not become flexible, thereby the leakage can not appear in the butterfly valve, strengthened the protective effect of butterfly valve, avoided when the long-time use of butterfly valve, nut 14 and bolt 13 take place not hard up, thereby the effect of butterfly valve leakage.

The stopper 37 is manually pulled when the butterfly valve needs to be disassembled, so that the limit block 33 is far away from the bolt 13 and the nut 14, the nut 14 is manually screwed, and then the first piston cylinder 31 and the second piston cylinder 4 are reset through the first spring 35 and the second spring 43.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a butterfly valve that barrier propterty is good, includes butterfly valve body (2) and body (1), first ring flange of fixedly connected with (21) is gone up in butterfly valve body (2), fixedly connected with second ring flange (11) are gone up in body (1), be equipped with through-hole (22) of mutually supporting on first ring flange (21) and second ring flange (11), be equipped with connecting seat (25) on butterfly valve body (2), be equipped with dwang (24) on connecting seat (25), fixedly connected with swing handle (23), its characterized in that on dwang (24): the novel flange plate is characterized in that a bolt (13) is arranged on the through hole (22), a nut (14) is screwed on the bolt (13), a clamping groove (12) is formed in the second flange plate (11), and the clamping groove (12) is matched with the bolt (13).

2. The butterfly valve with good protection performance of claim 1, wherein: the nut (14) is attached to the first flange plate (21).

3. The butterfly valve with good protection performance of claim 1, wherein: be equipped with on first ring flange (21) and be used for carrying out spacing fixed stop gear to nut (14), stop gear is including supporting shoe (3) of fixed connection on first ring flange (21), first piston barrel (31) of fixedly connected with on supporting shoe (3), sliding connection has first sealing plug (34) on first piston barrel (31), first piston rod (32) of fixedly connected with on first sealing plug (34), fixedly connected with stopper (33) on first piston rod (32).

4. The butterfly valve with good protection performance of claim 3, wherein: the limiting mechanism further comprises a first spring (35) sleeved on the first piston rod (32), and two ends of the first spring (35) are fixedly connected with the first piston cylinder (31) and the first sealing plug (34) respectively.

5. The butterfly valve with good protection performance of claim 4, wherein: the limiting mechanism further comprises a placing groove formed in the first flange plate (21), a second piston cylinder (4) is fixedly connected to the placing groove, a second sealing plug (42) is connected to the second piston cylinder (4) in a sliding mode, a second piston rod (41) is fixedly connected to the second sealing plug (42), and the second piston rod (41) is abutted to the nut (14).

6. The butterfly valve with good protection performance of claim 5, wherein: the limiting mechanism further comprises a second spring (43) placed in the second piston cylinder (4), and two ends of the second spring (43) are fixedly connected with the second piston cylinder (4) and the second sealing plug (42) respectively.

7. The butterfly valve with good protection performance of claim 6, wherein: the limiting mechanism further comprises a conveying pipe (36), and the first piston cylinder (31) and the second piston cylinder (4) are fixedly communicated through the conveying pipe (36).

8. The butterfly valve with good protection performance of claim 3, wherein: one end, far away from the limiting block (33), of the first piston rod (32) penetrates through the first piston cylinder (31), and one end, far away from the limiting block (33), of the first piston rod (32) is fixedly connected with a stop block (37).