CN214093215U

CN214093215U - Butterfly valve casting

Info

Publication number: CN214093215U
Application number: CN202022894954.5U
Authority: CN
Inventors: 王良辉; 王茂杰
Original assignee: Wenzhou Haige Valve Co ltd
Current assignee: Wenzhou Haige Valve Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-08-31
Anticipated expiration: 2030-12-04

Abstract

The application relates to a butterfly valve casting, which relates to the technical field of butterfly valves and comprises a valve body and a rubber ring, wherein the valve body comprises an upper shell and a lower shell which can be mutually connected and then are in a circular ring shape, and the rubber ring is arranged on the inner side walls of the upper shell and the lower shell; the outer side wall of the upper shell and the outer side wall of the lower shell are respectively and coaxially provided with an upper mounting column and a lower mounting column, the rubber ring penetrates through a jack for the valve rod to penetrate through, and a joint of the upper shell and the lower shell is provided with a fixing component for detachably connecting the upper shell and the lower shell. This application can dismantle the connection with last casing and lower casing with the valve body and form, goes up the casing and can dismantle the connection through fixed subassembly with lower casing, when changing the rubber circle, through the fixed subassembly of unblock, will go up casing and lower casing separation, makes things convenient for taking out of rubber circle to change, simple structure, convenient operation.

Description

Butterfly valve casting

Technical Field

The application relates to the technical field of butterfly valves, in particular to a butterfly valve casting.

Background

The butterfly valve is a regulating valve used for cutting off or throttling various types of fluids such as water, corrosive media, slurry, oil products, liquid metal and the like in a pipeline, and the sealing performance is particularly important because the butterfly valve is mainly used for various types of fluids.

A butterfly valve foundry goods among the correlation technique, including valve body and rubber circle, seted up valve disc pivoted rotation hole in the valve body, the rubber circle inlays to be established on the inside wall that rotates the hole, sets up the mounting hole that supplies the valve rod to pass on the valve body, and the hole of stepping down that supplies the valve rod to pass is seted up to the position of relative mounting hole on the rubber circle.

With respect to the related art in the above, the inventors consider that: the rubber circle is corroded after long-time use easily, consequently need change the rubber circle in order to guarantee the leakproofness of butterfly valve, and rubber circle inlays to be established on the inside wall in rotation hole among the correlation technique, and when changing the rubber circle, the user is dismantled comparatively difficultly, operates inconveniently.

SUMMERY OF THE UTILITY MODEL

Dismantle inconvenient problem when changing in order to solve the rubber circle, this application provides a butterfly valve foundry goods.

The application provides a butterfly valve foundry goods adopts following technical scheme:

a butterfly valve casting comprises a valve body and a rubber ring, wherein the valve body comprises an upper shell and a lower shell which can be connected with each other to form a circular ring shape, and the rubber ring is arranged on the inner side walls of the upper shell and the lower shell; the valve rod is characterized in that the outer side walls of the upper shell and the lower shell are respectively and coaxially provided with an upper mounting column and a lower mounting column, the rubber ring penetrates through a jack for the valve rod to penetrate through, and a joint of the upper shell and the lower shell is provided with a fixing component for detachably connecting the upper shell and the lower shell.

Through adopting above-mentioned technical scheme, can dismantle the connection with last casing and lower casing for the valve body and form, go up the casing and can dismantle the connection through fixed subassembly with lower casing, when changing the rubber circle, through the fixed subassembly of unblock, with last casing and lower casing separation, make things convenient for taking out of rubber circle to change, simple structure, convenient operation.

Optionally, the fixing assembly comprises two first fixing plates arranged on the outer side wall of the upper shell and two second fixing plates arranged on the outer side wall of the lower shell, a fixing rod is arranged on the end face of the first fixing plate facing the second fixing plate, fixing holes for the fixing rod to pass through are formed in the second fixing plates, threaded ends are arranged at the end portions of the fixing rods, and fixing nuts are matched with the threaded ends in a threaded manner.

Through adopting above-mentioned technical scheme, corresponding first fixed plate and second fixed plate pass the fixed orifices through the dead lever, and fixation nut realizes the fixed of first fixed plate and second fixed plate with the screw-thread fit of threaded end, just also realizes going up the casing and fixing of casing down.

Optionally, a guide plate is arranged on the side wall of each second fixing plate, which is away from the lower shell, a sliding groove is formed in one side, facing the first fixing plate, of the guide plate, and a sliding rod which slides in the sliding groove is arranged on the first fixing plate.

Through adopting above-mentioned technical scheme, the sliding fit of slide bar and spout realizes the alignment to dead lever and fixed orifices, plays the effect of direction to the cooperation of dead lever and fixed orifices.

Optionally, the end of the sliding rod, which is far away from the first fixing plate, is provided with a threaded rod, the threaded rod is in threaded fit with a locking nut, and the end of the threaded rod extends out of the side wall of the guide plate, which deviates from the first fixing plate.

Through adopting above-mentioned technical scheme, after the screw thread end realizes going up casing and casing down with the fixation of fixation nut cooperation, through threaded rod and lock nut's cooperation, further strengthen the fixed of casing and casing down.

Optionally, the length of the threaded rod is greater than the sum of the thicknesses of the fixing nut and the locking nut.

Through adopting above-mentioned technical scheme, when will going up casing and casing separation down, fixation nut can screw-thread fit on the threaded rod after taking off from the dead lever, avoids fixation nut to lose after taking off.

Optionally, both ends of the rubber ring are provided with the caulking rings, and the upper shell and the lower shell are respectively provided with caulking grooves for embedding the caulking rings.

Through adopting above-mentioned technical scheme, the abaculus inlays and establishes in the caulking groove, can further improve rubber circle and last casing and casing complex stability down, and the cooperation of while abaculus and caulking groove can play the effect of direction, easy to assemble when the installation of rubber circle and last casing and lower casing.

Optionally, a limiting block is arranged on the outer side wall of the embedded ring, and a limiting groove for embedding the limiting block is formed in the upper shell.

By adopting the technical scheme, when the limiting block is embedded into the limiting groove, the jack on the rubber ring and the upper mounting column are positioned at the same axial lead, so that the valve rod is convenient to be matched with the upper shell.

Optionally, the end of the upper mounting column away from the upper housing is provided with a mounting plate.

Through adopting above-mentioned technical scheme, the valve body all needs to detect before using, and at last casing and casing fixed back vertical place subaerial time down, the area of contact on mounting panel and ground is greater than the area of contact on erection column and ground to can improve the casing and the casing fixed back vertical stability of placing down.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the valve body is formed by detachably connecting an upper shell and a lower shell, the upper shell and the lower shell are detachably connected through a fixing assembly, when the rubber ring is replaced, the upper shell and the lower shell are separated by unlocking the fixing assembly, the rubber ring is conveniently taken out and replaced, the structure is simple, and the operation is convenient;

2. the first fixing plate and the second fixing plate which correspond to each other pass through the fixing holes through the fixing rods, the nuts are in threaded fit with the threaded ends, the first fixing plate and the second fixing plate are fixed, and the upper shell and the lower shell are fixed.

Drawings

FIG. 1 is a schematic overall structure of the present application;

fig. 2 is an exploded schematic view of the present application.

Description of reference numerals: 1. a valve body; 11. an upper housing; 111. caulking grooves; 112. a limiting groove; 12. a lower housing; 13. mounting a column; 14. a lower mounting post; 15. mounting a plate; 16. opening a hole groove; 2. a rubber ring; 21. a jack; 22. embedding a ring; 23. a limiting block; 3. a fixing assembly; 31. a first fixing plate; 32. a second fixing plate; 33. fixing the rod; 34. a fixing hole; 35. a threaded end; 36. a guide plate; 37. a chute; 38. a slide bar; 39. a threaded rod; 4. fixing a nut; 5. and locking the nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses butterfly valve foundry goods.

Referring to fig. 1 and 2, a butterfly valve casting comprises a valve body 1 and a rubber ring 2 embedded on the inner side wall of the valve body 1, the valve body 1 is divided into two parts for being conveniently replaced after the rubber ring 2 is aged and worn for a long time, the two parts are an upper shell 11 and a lower shell 12 respectively, and the upper shell 11 and the lower shell 12 can be connected to form a circular ring for embedding the rubber ring 2. Since the casting needs to be provided with a rotation hole for rotationally matching with the valve rod at the later stage, an upper mounting column 13 and a lower mounting column 14 which are coaxial with the axis are respectively and integrally formed on the outer side walls of the upper shell 11 and the lower shell 12, so that preparation is made for providing the rotation hole for rotationally matching with the valve rod at the later stage. The opposite rubber ring 2 is provided with an insertion hole 21, and the insertion hole 21 is also provided for the valve rod to pass through. Meanwhile, a fixing component 3 capable of realizing detachable connection of the upper shell 11 and the lower shell 12 is installed at the joint of the upper shell 11 and the lower shell 12.

Referring to fig. 1 and 2, the fixing assembly 3 includes first fixing plates 31 integrally formed on outer sidewalls of both ends of the upper case 11 facing the lower case 12, respectively, and second fixing plates 32 integrally formed on outer sidewalls of both ends of the lower case 12 facing the upper case 11, respectively, the first fixing plates 31 and the second fixing plates 32 being aligned two by two. A fixing rod 33 is integrally formed on one end surface of the second fixing plate 32 facing the first fixing plate 31, a fixing hole 34 for the fixing rod 33 to pass through is formed on the opposite second fixing plate 32, and a threaded end 35 is integrally formed on the end portion of the fixing rod 33 far away from the first fixing plate 31. After the fixing rod 33 passes through the fixing hole 34 and the first fixing plate 31 abuts against the second fixing plate 32, the fixing nut 4 abuts against the end face of the second fixing plate 32 far away from the first fixing plate 31 through the threaded fit of the fixing nut 4 and the threaded end 35, so that the fixing of the first fixing plate 31 and the second fixing plate 32, that is, the fixing of the upper shell 11 and the lower shell 12 is realized.

Referring to fig. 1 and 2, in order to facilitate alignment between the fixing rod 33 and the fixing hole 34, a guide plate 36 extending toward the first fixing plate 31 is integrally formed on a side wall of the second fixing plate 32 away from the lower housing 12, a sliding slot 37 extending toward the second fixing plate 32 is formed at an end of the guide plate 36 away from the second fixing plate 32, a sliding rod 38 capable of sliding in the sliding slot 37 is integrally formed on an opposite side wall of the first fixing plate 31 toward the guide plate 36, the length of the guide plate 36 is greater than that of the fixing rod 33, the sliding rod 38 is engaged with the sliding slot 37 before the fixing rod 33 is aligned with the fixing hole 34, and the fixing rod 33 is aligned with the fixing hole 34 after the sliding engagement, so as to facilitate insertion engagement between the fixing rod 33 and the second fixing plate 32.

Referring to fig. 1 and 2, the fixing strength of the first fixing plate 31 and the second fixing plate 32 is further enhanced by integrally forming a threaded rod 39 at an end of the slide rod 38 remote from the first fixing plate 31, and by screwing a lock nut 5 onto the threaded rod 39, and by pressing the lock nut 5 against the side wall of the guide plate 36 after being screwed with the threaded rod 39. Meanwhile, the threaded rod 39 can be in threaded fit with the fixing nut 4, the length of the threaded rod 39 is larger than the sum of the thicknesses of the fixing nut 4 and the locking nut 5, the fixing nut 4 can be matched with the threaded rod 39 after the locking nut 5 is unscrewed and the fixing nut 4 is unscrewed from the fixing rod 33, and the fixing nut 4 and the locking nut are separated after the upper shell 11 and the lower shell 12 are separated

The female 5 can simultaneously engage the threaded rod 39, preventing the fixing nut 4 from being lost after removal.

Referring to fig. 1 and 2, since the rubber ring 2 is directly inserted into the inner side of the circular ring formed by the upper case 11 and the lower case 12, there is a slip condition, which affects the sealing performance. Therefore, the two ends of the rubber ring 2 are integrally formed with the embedded rings 22 having the same axial line with the rubber ring 2, and the upper shell 11 and the lower shell 12 are both provided with the embedded grooves 111 for the embedded rings 22 to be embedded, so that the matching stability of the rubber ring 2 with the upper shell 11 and the lower shell 12 is improved. Meanwhile, the rubber ring 2 is assembled with the upper shell 11 first during assembly, and at the moment, the matching of the embedded ring 22 and the embedded groove 111 can play a guiding role, and the lower shell 12 is also convenient to match the rubber ring 2 and the upper shell 11 through the matching of the embedded ring 22 and the embedded groove 111.

Referring to fig. 1 and 2, since the insertion hole 21 needs to be aligned with the upper mounting post 13 when the rubber ring 2 is fitted to the upper housing 11, the stopper 23 is integrally formed on the outer sidewall of the insert ring 22, and a stopper groove 112 for the stopper 23 to be inserted into is formed on the opposite end surface of the upper housing 11.

Referring to fig. 1 and 2, an installation plate 15 is integrally formed at an end of the upper installation column 13 away from the upper housing 11, and the installation plate 15 is mainly used for fixedly connecting a fixing component on the valve rod after the upper installation column 13 is provided with a rotation hole for rotatably matching with the valve rod. Simultaneously, at last casing 11 and the fixed back of casing 12 down, still need carry out product quality's detection, and mounting panel 15 can make last casing 11 and casing 12 stand when subaerial increase with the area of contact on ground down, improve the stability that last casing 11 and casing 12 stood down, convenient detection. Finally, in order to facilitate the later stage to open the rotating hole on the upper mounting column 13, the end surface of the mounting plate 15 far away from the upper mounting column 13 is provided with a hole opening groove 16, and the hole opening groove 16 and the upper mounting column 13 have the same axial lead, so that the later stage hole opening positioning is facilitated.

The implementation principle of the butterfly valve casting of the embodiment of the application is as follows:

the upper shell 11, the lower shell 12 and the rubber ring 2 are fixedly installed, in the first step, under the matching of the embedded ring 22 and the embedded groove 111 on the upper shell 11, the upper shell 11 and the rubber ring 2 are installed, and meanwhile, the limiting block 23 is matched with the limiting groove 112, so that the jack 21 is aligned with the upper installation column 13; secondly, under the sliding fit of the sliding rod 38 and the sliding groove 37, the fixing rod 33 is inserted into the fixing hole 34 in an aligned manner, and meanwhile, the caulking groove 111 on the lower shell 12 is matched with the caulking ring 22 and screwed up through the thread matching of the fixing nut 4 and the thread end 35, so that the first fixing plate 31 and the second fixing plate 32 are fixed, and the upper shell 11 and the lower shell 12 are fixed; and thirdly, screwing the locking nut 5 and the threaded rod 39 in a threaded fit manner, and further improving the firmness of fixing the upper shell 11 and the lower shell 12 to complete the installation and fixation of the upper shell 11, the lower shell 12 and the rubber ring 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a butterfly valve foundry goods, includes valve body (1) and rubber circle (2), its characterized in that: the valve body (1) comprises an upper shell (11) and a lower shell (12) which can be connected with each other and then are in a circular ring shape, and the rubber ring (2) is arranged on the inner side walls of the upper shell (11) and the lower shell (12); go up on the lateral wall of casing (11) and casing (12) down coaxial erection column (13) and lower erection column (14) of being provided with respectively, rubber circle (2) run through have supply jack (21) that the valve rod passed, the linking department of going up casing (11) and casing (12) down is provided with and is used for dismantling fixed subassembly (3) of connecting up casing (11) and casing (12) down.

2. A butterfly valve casting according to claim 1, wherein: fixed subassembly (3) include two set up in first fixed plate (31) of last casing (11) lateral wall, two set up in second fixed plate (32) of casing (12) lateral wall down, first fixed plate (31) are provided with dead lever (33) towards the terminal surface of second fixed plate (32), be provided with on second fixed plate (32) and supply fixed rod (33) to pass fixed orifices (34), the tip of dead lever (33) is provided with threaded end (35), threaded end (35) screw-thread fit has fixation nut (4).

3. A butterfly valve casting according to claim 2, wherein: each second fixing plate (32) is provided with a guide plate (36) on the side wall departing from the lower shell (12), a sliding groove (37) is formed in one side, facing the first fixing plate (31), of the guide plate (36), and a sliding rod (38) sliding in the sliding groove (37) is arranged on the first fixing plate (31).

4. A butterfly valve casting according to claim 3, wherein: the end part, far away from the first fixing plate (31), of the sliding rod (38) is provided with a threaded rod (39), the threaded rod (39) is in threaded fit with a locking nut (5), and the end part of the threaded rod (39) extends out of the side wall, away from the first fixing plate (31), of the guide plate (36).

5. A butterfly valve casting according to claim 4, wherein: the length of the threaded rod (39) is greater than the sum of the thicknesses of the fixing nut (4) and the locking nut (5).

6. A butterfly valve casting according to claim 1, wherein: the both ends of rubber circle (2) all are provided with caulking ring (22), be provided with caulking groove (111) that supply caulking ring (22) to imbed on last casing (11) and lower casing (12) respectively.

7. A butterfly valve casting according to claim 6, wherein: the outer side wall of the embedded ring (22) is provided with a limiting block (23), and the upper shell (11) is provided with a limiting groove (112) for the limiting block (23) to be embedded into.

8. A butterfly valve casting according to claim 1, wherein: and the end part of the upper mounting column (13) far away from the upper shell (11) is provided with a mounting plate (15).