CN209959945U

CN209959945U - Integral type butterfly check valve

Info

Publication number: CN209959945U
Application number: CN201920851688.2U
Authority: CN
Inventors: 顾素云
Original assignee: JIANGSU TONGDA MARINE-TYPE VALVE AND PUMP Co Ltd
Current assignee: JIANGSU TONGDA MARINE-TYPE VALVE AND PUMP Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-01-17
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses an integral type butterfly check valve belongs to five metals valve field. An integrated butterfly check valve comprises a valve body and a butterfly plate, wherein a valve cavity matched with the butterfly plate is arranged inside the valve body, a valve rod is connected inside the butterfly plate, one end of the valve rod is rotatably connected inside the valve body, one end, far away from the valve body, of the valve rod penetrates through a valve cover and is connected with a grab handle, a first cavity is arranged inside the valve rod, a first connecting rod is connected inside the valve cover, one end, far away from the valve cover, of the first connecting rod penetrates through the valve cover and is rotatably connected with the bottom of the first cavity, a second cavity is arranged inside the butterfly plate, a telescopic rod is connected inside the second cavity, one end of the telescopic rod is matched with the first; the beneficial effects of the utility model reside in that can guarantee that the butterfly plate rotates stable fixing behind the certain angle, avoid the butterfly plate to take place spacing unstable condition under the pressure shock of medium, influence the control of butterfly valve to the medium circulation.

Description

Integral type butterfly check valve

Technical Field

The utility model relates to a five metals valve field especially relates to an integral type butterfly check valve.

Background

The butterfly valve is also called as flap valve, is a regulating valve with simple structure, 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 the roles of cutting off and throttling on a pipeline.

Traditional butterfly valve includes valve body and valve rod, and the lower extreme of valve rod is provided with the valve plate, and the structure that relies on the turbine worm mainly is realized to the injecing of the valve plate position of this butterfly valve, and wherein the worm is the upper portion of last valve rod promptly, but this kind of limit structure is spacing not firm enough, leads to the butterfly plate to take place to rotate very easily when the velocity of flow of medium is unstable in the valve body, and then influences medium business turn over flow.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art, and the integral type butterfly check valve who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an integral type butterfly check valve, includes valve body and butterfly plate, the valve body is inside be provided with butterfly plate assorted valve pocket, the butterfly plate is connected in the valve pocket, be connected with the valve gap on the valve body roof, butterfly plate internal connection has the valve rod, valve rod one end is rotated and is connected in the valve body, the valve rod is kept away from the one end of valve body and is passed the valve gap and be connected with the grab handle, the inside first cavity that is provided with of valve rod, the valve gap in-connection has first connecting rod, the one end that the valve gap was kept away from to first connecting rod is passed the valve gap and is rotated with first cavity bottom and link to each other, the inside second cavity that is provided with of butterfly plate, second cavity internal connection has the telescopic link, telescopic link one end cooperatees with first.

Preferably, the outer wall of the first connecting rod is provided with a first boss, the first boss is meshed with a second boss, and the second boss is connected to the telescopic rod.

Preferably, the telescopic link includes second connecting rod, third connecting rod and screw sleeve, screw sleeve one end links to each other with the second connecting rod is fixed, the one end that the second connecting rod was kept away from to the screw sleeve links to each other with the third connecting rod screw thread.

Preferably, one end of the third connecting rod, which is far away from the threaded sleeve, is connected with a bump, the bump is contracted inside the second cavity, and the bump is matched with the second cavity.

Preferably, a rotating handle is arranged at the top of the first connecting rod, and anti-skid grains are arranged on the outer wall of the rotating handle.

Compared with the prior art, the utility model provides an integral type butterfly check valve possesses following beneficial effect:

1. the integrated butterfly check valve can drive the valve rod to rotate by rotating the grab handle at the top of the valve body, so as to drive the butterfly plate to rotate, thereby realizing the adjustment of medium circulation, then the rotating handle is rotated, thereby driving the first connecting rod to rotate, further driving the first boss connected on the outer wall of the first connecting rod to rotate, thereby driving the second boss connected with the first boss to rotate, further driving the second connecting rod connected with the second boss and the threaded sleeve connected on the outer wall of the second connecting rod to rotate, thereby driving the third connecting rod in threaded connection with the threaded sleeve to slide by the rotation of the threaded sleeve, further leading the third connecting rod to extend out of the second cavity, further driving the lug to extend out, further leading the lug to be tightly abutted against the inner wall of the valve body, and leading the threaded sleeve to only rotate in the second cavity, can not remove, thereby make the second boss on the second connecting rod cooperate with first boss all the time, and the third connecting rod can only remove in the second cavity and can not rotate, can make the convenient removal of third connecting rod, thereby make fixing inside the valve body that the butterfly plate can be stable after rotating certain angle, avoid the butterfly plate to take place spacing unstable condition under the pressure shock of medium, thereby influence the control of butterfly valve to medium flux, through lug and second cavity phase-match, thereby avoid the medium to enter into inside the second cavity, and influence the normal flexible of telescopic link, through the turning handle who sets up, thereby be convenient for to the initiative of first connecting rod, through the setting of antiskid line, thereby the condition of skidding takes place when avoiding the rotatory turning handle.

Drawings

Fig. 1 is a schematic structural view of an integrated butterfly check valve according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of an integrated butterfly check valve according to the present invention;

FIG. 3 is a side sectional view of an integrated butterfly check valve in accordance with the present invention;

fig. 4 is the utility model provides a structure of integral type butterfly check valve's telescopic link is schematic.

In the figure: 1. a valve body; 101. a valve cover; 2. a butterfly plate; 201. a second cavity; 3. a valve stem; 301. a first cavity; 4. a handle; 5. a first link; 501. a first boss; 502. a second boss; 503. rotating the handle; 6. a telescopic rod; 601. a second link; 602. a third link; 603. a threaded sleeve; 604. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, an integral type butterfly check valve, including valve body 1 and

butterfly plate

2, 1 inside be provided with of valve body with 2 assorted valve chambeies of butterfly plate, butterfly plate 2 is connected in the valve chamber, be connected with valve gap 101 on 1 roof of valve body, 2 internal connection of butterfly plate have

valve rod

3, 3 one end rotations of valve rod are connected in valve body 1, valve rod 3 keeps away from the one end of valve body 1 and passes valve gap 101 and be connected with

grab handle

4, 3 inside first cavities 301 that are provided with of valve rod, valve gap 101 in-connection has first connecting rod 5, the one end that valve gap 101 was kept away from to first connecting rod 5 is passed valve gap 101 and is rotated with first cavity 301 bottom and link to each other, 2 inside second cavities 201 that are provided with of butterfly plate, second cavity 201 internal connection has

telescopic link

6, 6 one end of telescopic link matches with first connecting rod 5, the one.

Referring to fig. 2, a first boss 501 is arranged on the outer wall of the first connecting rod 5, the first boss 501 is engaged with a second boss 502, and the second boss 502 is connected to the telescopic rod 6.

Referring to fig. 4, the telescopic rod 6 comprises a second link 601, a third link 602 and a threaded sleeve 603, wherein one end of the threaded sleeve 603 is fixedly connected with the second link 601, and one end of the threaded sleeve 603 away from the second link 601 is in threaded connection with the third link 602.

Referring to fig. 1-4, a protrusion 604 is connected to an end of the third link 602 away from the threaded sleeve 603, the protrusion 604 is retracted inside the second cavity 201, and the protrusion 604 is matched with the second cavity 201.

Referring to fig. 1-3, a rotating handle 503 is disposed on the top of the first connecting rod 5, and anti-slip threads are disposed on the outer wall of the rotating handle 503.

By rotating the handle 4 at the top of the valve body 1, the valve rod 3 can be driven to rotate, the butterfly plate 2 is driven to rotate, the medium circulation can be adjusted, then the rotating handle 503 is rotated, the first connecting rod 5 can be driven to rotate, the first boss 501 connected to the outer wall of the first connecting rod 5 is driven to rotate, the second boss 502 meshed and connected with the first boss 501 is driven to rotate, the second connecting rod 601 connected with the second boss 502 and the threaded sleeve 603 connected to the outer wall of the second connecting rod 601 are driven to rotate, the third connecting rod 602 in threaded connection with the threaded sleeve 603 is driven to slide through the rotation of the threaded sleeve 603, the third connecting rod 602 extends out of the second cavity 201, the lug 604 is driven to extend out, the lug 604 can tightly abut against the inner wall of the valve body 1, and the threaded sleeve 603 can only rotate in the second cavity 201, unable removal, thereby make second boss 502 on the second connecting rod 601 cooperate with first boss 501 all the time, and third connecting rod 602 can only remove in second cavity 201 and can not rotate, can make the convenient removal of third connecting rod 602, thereby make butterfly plate 2 rotate can be stable fix inside valve body 1 after certain angle, avoid butterfly plate 2 to take place spacing unstable condition under the pressure impact of medium, thereby influence the butterfly valve to the control of medium flux, through lug 604 and second cavity 201 phase-match, thereby avoid the medium to enter into inside the second cavity 201, and influence the normal of telescopic link 6, through the turning handle 503 that sets up, thereby be convenient for to the initiative of first connecting rod 5, through the setting of anti-skidding line, thereby avoid the condition of taking place to skid when rotatory turning handle 503.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The integrated butterfly check valve comprises a valve body (1) and a butterfly plate (2), and is characterized in that a valve cavity matched with the butterfly plate (2) is arranged inside the valve body (1), the butterfly plate (2) is connected in the valve cavity, a valve cover (101) is connected to the top wall of the valve body (1), a valve rod (3) is connected inside the butterfly plate (2), one end of the valve rod (3) is rotatably connected in the valve body (1), one end, far away from the valve body (1), of the valve rod (3) penetrates through the valve cover (101) and is connected with a grab handle (4), a first cavity (301) is arranged inside the valve rod (3), a first connecting rod (5) is connected in the valve cover (101), one end, far away from the valve cover (101), of the first connecting rod (5) penetrates through the valve cover (101) and is rotatably connected with the bottom of the first cavity (301), a second cavity (201) is arranged inside the butterfly plate, the valve is characterized in that a telescopic rod (6) is connected inside the second cavity (201), one end of the telescopic rod (6) is matched with the first connecting rod (5), and one end, away from the first connecting rod (5), of the telescopic rod (6) is abutted to the inner wall of the valve body (1).

2. The integrated butterfly check valve according to claim 1, characterized in that a first boss (501) is disposed on an outer wall of the first connecting rod (5), a second boss (502) is engaged and connected to the first boss (501), and the second boss (502) is connected to the telescopic rod (6).

3. An integral butterfly check valve according to claim 2, characterized in that the telescopic rod (6) comprises a second link (601), a third link (602) and a threaded sleeve (603), wherein one end of the threaded sleeve (603) is fixedly connected with the second link (601), and the end of the threaded sleeve (603) far away from the second link (601) is in threaded connection with the third link (602).

4. An integral butterfly check valve according to claim 3, characterized in that a projection (604) is attached to the end of the third link (602) remote from the threaded sleeve (603), the projection (604) being retracted inside the second cavity (201), and the projection (604) matching the second cavity (201).

5. The integrated butterfly check valve according to claim 1, characterized in that a rotating handle (503) is arranged on the top of the first connecting rod (5), and anti-skid threads are arranged on the outer wall of the rotating handle (503).