CN210290784U

CN210290784U - Butterfly valve with lower limiting device

Info

Publication number: CN210290784U
Application number: CN201920855231.9U
Authority: CN
Inventors: 宋尚; 丁桂花
Original assignee: Wuxi Swater Fluid Control Technology Co ltd
Current assignee: Wuxi Swater Fluid Control Technology Co ltd
Priority date: 2019-06-09
Filing date: 2019-06-09
Publication date: 2020-04-10
Anticipated expiration: 2029-06-09

Abstract

The utility model discloses a butterfly valve with a lower limiting device, which comprises a valve body, wherein a connecting piece is fixedly arranged at the top end of the valve body, a threaded rod is inserted and installed in the connecting piece, a knob is fixedly installed at one end of the threaded rod, which is far away from the valve body, two butt rings are symmetrically installed at two ends of the valve body, a plurality of butt holes are drilled on the two butt rings, a channel is drilled in the middle of the valve body, a valve block is rotatably installed between the inner walls of the channel and at the middle position of the two butt rings, a sealing gasket is arranged on the inner wall of the channel corresponding to the valve block, two limiting columns are symmetrically and fixedly installed on the inner bottom wall of the channel, which is far away from one end of the connecting piece, at two sides of the valve block, the butterfly valve with the lower limiting device is provided with two cylinders as the limiting columns in the, the limiting column and the groove can be clamped and connected, and the stability of the limiting column for limiting the valve block is effectively improved.

Description

Butterfly valve with lower limiting device

Technical Field

The utility model relates to a butterfly valve, in particular to butterfly valve of stop device under area belongs to butterfly valve technical field.

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 with a closing member, namely a valve clack or a butterfly plate, which is a disc and rotates around a valve shaft to open and close.

The butterfly valve needs to limit the valve block through the limiting device in the using process, when the traditional butterfly valve with the lower limiting device is used, only the limiting columns are arranged on two sides of the valve block, and clamping grooves are not chiseled on the valve block, so that the valve block is not firmly connected with the limiting columns, the limiting stability of the limiting columns on the valve block is greatly reduced, and the butterfly valve with the lower limiting device with the limiting stability needs to be designed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a butterfly valve of stop device under area.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a butterfly valve of stop device under area, including the valve body, valve body top fixed mounting has the connecting piece, insert in the connecting piece and install the threaded rod, the one end fixed mounting that the valve body was kept away from to the threaded rod has the knob, two butt joint circles are installed to valve body both ends symmetry, two all cut a plurality of butt joint holes on the butt joint circle, cut the passageway in the middle of the valve body, just be located the intermediate position rotation of two butt joint circles between the passageway inner wall and install the valve block, be equipped with seal ring with the corresponding position of valve block on the passageway inner wall, just be located the bilateral symmetry fixed mounting of valve block and have two spacing posts on the interior diapire that connecting piece one end.

As a preferred technical scheme of the utility model, the one end that is close to the connecting piece on the valve body and the top that is located the valve block are opened and are chiseled and have the through-hole, just the one end that the knob was kept away from to the threaded rod passes through-hole and valve block fixed connection.

As a preferred technical scheme of the utility model, the valve block axle is installed to the inside fixed nestification of valve block, just the one end that the valve block axle is close to the connecting piece is passed through-hole and the one end fixed connection that the knob was kept away from to the threaded rod, the one end that the connecting piece was kept away from to the valve block axle is rotated with the passageway inner wall and is connected.

As a preferred technical scheme of the utility model, a recess has all been dug on the two sides that the valve plate deviates from mutually, and two recesses respectively with the corresponding setting in position of two spacing posts.

As an optimal technical scheme of the utility model, two spacing post is the cylinder, and two spacing post all is connected rather than the corresponding recess block that sets up.

The utility model discloses the beneficial effect who reaches is: the utility model relates to a butterfly valve of stop device under area has spacing stable characteristics, and in concrete use, with traditional butterfly valve of stop device under the area comparatively speaking, this butterfly valve is provided with two cylinders in the valve body as spacing post to it has two recesses to cut with two corresponding positions of spacing post on the valve block, and spacing post can be connected by the block with the recess, effectively improves spacing post to the spacing stability of valve block.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

fig. 2 is a cross-sectional view of the valve body of the present invention;

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

FIG. 4 is a schematic view of the structure of the spacing column of the present invention;

fig. 5 is a schematic view of the valve plate and the limit post.

In the figure: 1. a valve body; 11. a through hole; 2. a valve plate; 21. a valve plate shaft; 22. a groove; 3. a connecting member; 4. a knob; 5. a threaded rod; 6. a butt joint hole; 7. a channel; 8. a butt joint ring; 9. a limiting column; 10. a gasket is provided.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-5, the utility model relates to a butterfly valve with stop device down, including

valve body

1, 1 top fixed mounting of valve body has connecting piece 3, insert in the connecting piece 3 and install threaded rod 5, the one end fixed mounting that valve body 1 was kept away from to threaded rod 5 has knob 4, two butt joint circle 8, two are installed to 1 both ends symmetry of valve body a plurality of butt joint holes 6 have all been dug on the butt joint circle 8, it has passageway 7 to dig in the middle of the valve body 1, just be located two butt joint circle 8 intermediate positions between the 7 inner walls of passageway and rotate and install valve block 2, be equipped with seal ring 10 with the corresponding position of valve block 2 on the 7 inner walls of passageway, just be located two spacing posts 9 of bilateral symmetry fixed mounting of valve block 2 on the inner bottom wall that connecting piece 3 one end.

Wherein, the one end that is close to connecting piece 3 on the valve body 1 and the top that is located valve block 2 are dug there is through-hole 11, just the one end that knob 4 was kept away from to threaded rod 5 passes through-hole 11 and valve block 2 fixed connection.

Wherein, valve block axle 21 is installed to the inside fixed nestification of valve block 2, just the one end that valve block axle 21 is close to connecting piece 3 passes through-hole 11 and threaded rod 5 and keeps away from the one end fixed connection of knob 4, the one end that connecting piece 3 was kept away from to valve block axle 21 rotates with the passageway 7 inner wall to be connected.

Wherein, a groove 22 is dug on the two sides that valve block 2 deviates from mutually, and two grooves 22 set up with the position correspondence of two spacing posts 9 respectively.

Wherein, two spacing post 9 is the cylinder, and two spacing post 9 all is connected with its corresponding recess 22 block that sets up.

Specifically, the utility model discloses during the use, drive threaded rod 5 through rotating knob 4 and rotate, drive valve block 2 then and rotate, can ensure the leakproofness of

valve block

2 and 7 inner wall contact jaw of passageway through seal ring 10, when the ninety degree angle of valve block 2 rotation, drive the block butt joint through the spacing post 9 of recess 22 of cutting on the valve block 2 and the cylinder of corresponding setting, can prevent to break away from easily behind the two butt joint, improve spacing post 9 then to the spacing stability of valve block.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a butterfly valve of stop device under area, includes valve body (1), its characterized in that, valve body (1) top fixed mounting has connecting piece (3), insert in connecting piece (3) and install threaded rod (5), the one end fixed mounting that valve body (1) were kept away from in threaded rod (5) has knob (4), two butt joint circle (8) are installed to valve body (1) both ends symmetry, two all cut on butt joint circle (8) and have a plurality of butt joint hole (6), cut in the middle of valve body (1) and have passageway (7), just be located the intermediate position of two butt joint circles (8) between passageway (7) inner wall and rotate and install valve block (2), be equipped with seal ring (10) with valve block (2) corresponding position on passageway (7) inner wall, just be located the bilateral symmetry fixed mounting of valve block (2) on the interior diapire of connecting piece (3) one end is kept away from in passageway (7) 9).

2. The butterfly valve with the lower limiting device according to claim 1, wherein a through hole (11) is formed in one end of the valve body (1) close to the connecting piece (3) and located at the top end of the valve plate (2), and one end of the threaded rod (5) far away from the knob (4) penetrates through the through hole (11) to be fixedly connected with the valve plate (2).

3. The butterfly valve with the lower limiting device according to claim 1, wherein a valve plate shaft (21) is fixedly nested in the valve plate (2), one end of the valve plate shaft (21) close to the connecting piece (3) penetrates through the through hole (11) to be fixedly connected with one end of the threaded rod (5) far away from the knob (4), and one end of the valve plate shaft (21) far away from the connecting piece (3) is rotatably connected with the inner wall of the channel (7).

4. The butterfly valve with the lower limiting device according to claim 1, wherein a groove (22) is cut on each of two sides of the valve plate (2) away from each other, and the two grooves (22) are respectively arranged corresponding to the positions of the two limiting columns (9).

5. The butterfly valve with the lower limiting device according to claim 1, wherein the two limiting columns (9) are both cylinders, and the two limiting columns (9) are both connected with the corresponding grooves (22) in a clamping manner.