CN211082956U

CN211082956U - Pneumatic three-way flap valve

Info

Publication number: CN211082956U
Application number: CN201922288759.5U
Authority: CN
Inventors: 杨瑞鹏; 王水波; 陈连峰
Original assignee: Qingdao Jieyurui Machinery Co ltd
Current assignee: Qingdao Jieyurui Machinery Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-24
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a pneumatic tee bend flap valve, including valve body and ooff valve, the valve body is the tee bend pipeline, has entry, export and second export, the ooff valve is two sets altogether, including fixed plate, valve plate, mount, pivot and drive arrangement, one set sets up between entry and export, and one set sets up between entry and second export, and a fixed plate is fixed to be set up in the valve body and to enter the mouth and export spaced apart, and another fixed plate is fixed to be set up in the valve body and to enter the mouth and export spaced apart with the second, all sets up the defeated material hole on two fixed plates, the beneficial effects of the utility model: the valve plate is located the valve body inboard, has solved the valve plate and has switched the problem that produces steam in cold and hot environment, and the inclined plane setting of valve plate and defeated material hole makes the cooperation of the two inseparabler, and the leakproofness is better, and cement powder can't be hoarded on the inclined plane, and the quality is more stable.

Description

Pneumatic three-way flap valve

Technical Field

The utility model belongs to the technical field of cement manufacture equipment, concretely relates to pneumatic tee bend flap valve.

Background

During the production process of cement, finished cement powder needs to be conveyed through a pipeline. Since cement is easily hardened with water or moist air, a valve needs to be provided in the delivery pipe. When cement is conveyed, the valve is opened, and after the cement is conveyed, the valve needs to be closed to keep a sealing state and prevent external water vapor from entering.

Most of the existing pipeline valves are gate valves, as shown in fig. 1 and 2, the valve plate 20 can slide up and down relative to the valve body 10, when the valve plate is inserted to the lower side, the valve is in a closed state, and when the valve plate slides up to the top end, the valve is in an open state. There may be two driving modes of the air cylinder and the electric motor. As can be seen, valve plate 20 is inserted inside the tube when closed and exposed to air when open. Therefore, the main problems of the gate valve in the use process are as follows:

first, a certain clearance is required due to the sliding form of the valve plate, and cement powder is easily leaked and accumulated from the clearance. Leakage, and loss and waste of powder are caused. The accumulated powder and the water vapor in the air can be hardened, so that the valve plate is difficult to slide up and down and cannot be used.

Second, the valve plate part exposes in the air, because the finished temperature of cement is than higher, about seventy degrees or so, the pipeline internal temperature is higher promptly, and the temperature is lower in the outside air, switches in the cold and hot environment of valve plate, can produce a large amount of steam, causes to produce a large amount of hardened cement on the valve plate, leads to the unable up-and-down slip of valve plate, unable use.

SUMMERY OF THE UTILITY MODEL

The pneumatic three-way flap valve is provided for solving the problem that the flap valve cannot slide up and down due to hardening caused by accumulation of cement in gaps in the use process of the flap valve in the prior art.

A pneumatic three-way flap valve, which comprises a valve body and a switch valve,

the valve body is a three-way pipeline and is provided with an inlet, an outlet and a second outlet,

the two sets of switch valves comprise a fixed plate, a valve plate, a fixed frame, a rotating shaft and a driving device, one set of switch valves is arranged between the inlet and the outlet, the other set of switch valves is arranged between the inlet and the second outlet,

one fixing plate is fixedly arranged in the valve body to separate the inlet from the outlet, the other fixing plate is fixedly arranged in the valve body to separate the inlet from the second outlet, the two fixing plates are both provided with material conveying holes,

the rotating shaft penetrates through the valve body and is rotatably arranged on the valve body, the fixed frame is positioned in the valve body, one end of the fixed frame is fixedly connected with the rotating shaft, the other end of the fixed frame is connected with the valve plate,

the valve plate is matched with the fixed plate and rotates relative to the rotating shaft together with the fixed frame to open or cover the material conveying hole,

the driving device is arranged on the outer side of the valve body, is connected with one end, extending out of the valve body, of the rotating shaft and is used for driving the rotating shaft to rotate.

Preferably, the edge of the material conveying hole of the pneumatic flap valve is an inclined plane, and the pneumatic flap valve inclines towards the center of the valve body in the direction from the outlet to the inlet.

Preferably, the size of the valve plate of the pneumatic flap valve is matched with the material conveying hole, and the valve plate is provided with an inclined surface edge matched with the material conveying hole.

Preferably, the driving device of the pneumatic flap valve comprises an air cylinder and a rotating arm, the rotating arm is coaxially connected with the outer side end of the rotating shaft extending out of the valve body, the tail end of the air cylinder is rotatably arranged on the outer side of the valve body, and the rod end of the air cylinder is rotatably connected with the rotating arm.

Preferably, the driving device of the pneumatic flap valve is a rotary motor, and the rotary motor drives the rotating shaft to rotate.

Preferably, pneumatic flap valve still includes fixed cover, packing and sliding sleeve, fixed cover is fixed to be set up on the valve body, set up the shaft hole on the fixed cover, set up the blind hole from valve body outside one side, wherein the aperture of blind hole is greater than the shaft hole, and the pivot penetrates in the shaft hole, the packing winding is in the pivot, and sliding sleeve and pivot clearance fit compress tightly install in the blind hole, inwards compress tightly the packing.

Preferably, the pneumatic flap valve further comprises a square ball bearing with a seat, the outer end of the rotating shaft is arranged on the square ball bearing with the seat, and the square ball bearing with the seat is mounted on the valve body through a bolt fastener and presses the sliding sleeve inwards.

Preferably, the valve body of the pneumatic flap valve is also provided with a closed cavity, the cavity is communicated with the outlet, the communicated part is provided with ventilation cloth, and high-pressure gas is introduced into the cavity.

Preferably, the valve body of the pneumatic flap valve is also provided with a closed cavity, the second cavity is communicated with the second outlet, the communicated part is provided with ventilation cloth, and high-pressure gas is introduced into the cavity.

Preferably, the material conveying hole is a circular or square hole.

The utility model has the advantages that:

1. the valve plate is positioned at the inner side of the valve body, the problem that the valve plate generates water vapor in a cold and hot environment is solved,

2. the inclined plane setting of valve plate and defeated material hole makes the cooperation of the two inseparabler, and the leakproofness is better, and cement powder can't be hoarded on the inclined plane, and the quality is more stable.

Drawings

FIG. 1 is a schematic view of a gate valve;

FIG. 2 is a schematic view of a gate valve;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is a cross-sectional view of an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention;

fig. 7 is a schematic view of a shaft end sealing structure according to an embodiment of the present invention;

fig. 8 is a schematic view of a sealing structure according to an embodiment of the present invention;

fig. 9 is a usage state diagram of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the drawings in the embodiments of the present invention.

As shown in fig. 3, the pneumatic three-way flap valve comprises a valve body 1 and a switch valve,

the valve body 1 is a three-way pipeline and is provided with an inlet 11, an outlet 12 and a second outlet 13,

the two sets of switch valves comprise a fixed plate 21, a valve plate 22, a fixed frame 23, a rotating shaft 24 and a driving device, one set is arranged between the inlet 11 and the outlet 12, the other set is arranged between the inlet 11 and the second outlet 13,

a fixing plate 21 is fixedly arranged in the valve body 1 to separate the inlet 11 from the outlet 12, another fixing plate 21 is fixedly arranged in the valve body 1 to separate the inlet 11 from the second outlet 13, the two fixing plates 21 are both provided with a material conveying hole 211,

the rotating shaft 24 penetrates through the valve body 1 and is rotatably arranged on the valve body 1, the fixing frame 23 is positioned in the valve body 1, one end of the fixing frame is fixedly connected with the rotating shaft 24, the other end of the fixing frame is connected with the valve plate 22,

the valve plate 22 is matched with the fixing plate 21, and rotates relative to the rotating shaft 24 integrally with the fixing frame 23 to open or cover the material conveying hole 211,

the driving device is installed on the outer side of the valve body 1, connected with one end of the rotating shaft 24 extending out of the valve body 1 and used for driving the rotating shaft 24 to rotate.

As shown in the figure, unlike the gate valve, the valve plate 22 in the present application, whether in the open state or the closed state, is located inside the valve body, thus solving the problem of water vapor generation caused by the switching of the valve plate in the prior art in the cold and hot environment. And a gap for pulling and inserting the valve plate of the gate valve is not formed, so that the sealing property is better. The driving device is positioned outside the valve body, and is convenient to control.

The edge of the material conveying hole 211 is an inclined plane, and the inclined plane inclines towards the center of the valve body 1 in the direction from the outlet to the inlet.

The valve plate 22 is matched with the delivery hole 211 in size and is provided with an inclined surface edge matched with the delivery hole 211.

As shown in fig. 3, the slope has two advantages, one of which is that the sealing performance is good. The inclined planes of the valve plate 22 and the material conveying hole 211 are arranged, so that the valve plate and the material conveying hole are matched more tightly, and the sealing performance is better. Secondly, no cement powder is accumulated on the sealing surface. Certain smoothness needs to be guaranteed at the inclined plane, and cement powder can not be hoarded on the inclined plane, can drop automatically, has guaranteed the life of flap valve, no matter how long time the use, can not have the problem of deposition and influence sealed, and the quality is more stable.

As shown in fig. 5, the driving device is a cylinder 3 and a rotating arm 4, the rotating arm 4 is coaxially connected with the outer end of the rotating shaft 24 extending out of the valve body 1, the tail end of the cylinder 3 is rotatably mounted on the outer side of the valve body 1, and the rod end of the cylinder is rotatably connected with the rotating arm 4.

The driving device is a rotary motor, and the rotary motor drives the rotating shaft 24 to rotate.

As shown in fig. 6, 7 and 8, the pneumatic three-way flap valve further comprises a fixing sleeve 51, a packing 53 and a sliding sleeve 52, wherein the fixing sleeve 51 is fixedly arranged on the valve body 1, a shaft hole 511 is formed in the fixing sleeve 51, a blind hole 512 is formed in one side of the outer portion of the valve body 1, the aperture of the blind hole 512 is larger than that of the shaft hole 511, the rotating shaft 24 penetrates through the shaft hole 511, the packing 53 is wound on the rotating shaft 24, the sliding sleeve 52 is in clearance fit with the rotating shaft 24 and is tightly pressed in the blind hole 512, and the packing 53 is tightly pressed inwards.

Sealing of the shaft ends is particularly important in order to prevent cement powder from leaking out of the gaps at the shaft ends. The fixing sleeve 51 can be welded on the housing of the valve body 1 by full welding, and the shaft hole 511 is also in clearance fit with the rotating shaft 24. The sealing is mainly realized by the packing 53, the packing 53 is compressible, and under the compression action of the sliding sleeve 52, the packing 53 is tightly matched with the rotating shaft 24, so that the sealing effect is realized, and the leakage of cement powder is prevented.

The sliding sleeve 52 can be mounted by pressing, for example, the pressing plate can be mounted on the valve body 1 by bolts, and the sliding sleeve 52 can be pressed inward by the pressing plate.

The valve further comprises a square ball bearing with a seat 54, the outer side end of the rotating shaft 24 is arranged on the square ball bearing with a seat 54, the square ball bearing with a seat 54 is installed on the valve body 1 through a bolt fastener, and the sliding sleeve 52 is pressed inwards.

The valve body 1 is also provided with a closed cavity 15, the cavity 15 is communicated with the outlet 12, a ventilating cloth 16 is arranged at the communicated position, and high-pressure gas is introduced into the cavity 15.

The valve body 1 is also provided with a closed cavity 17, the second cavity 15 is communicated with the second outlet 13, a ventilating cloth 16 is arranged at the communication position, and high-pressure gas is introduced into the cavity 15.

As shown in FIG. 4, high-pressure gas is introduced into the cavity 15, the gas is uniformly introduced to one side of the outlet 12 through the ventilating cloth 16, and under the action of the high-pressure gas, the cement powder is in a suspended state, so that the cement powder is conveyed more smoothly.

As shown in fig. 6, a torque transmission sleeve 25 is mounted on the rotating shaft 24, and the fixing frame 23 is fixedly connected with the torque transmission sleeve 25.

As shown in fig. 9, the pipes are disposed in an inclined state for use.

The three-way valve can be communicated with one way selectively, can be used for supplying two different materials and respectively selects different discharge ports.

It is to be understood that 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 may 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. A pneumatic three-way flap valve is characterized by comprising a valve body (1) and a switch valve,

the valve body (1) is a three-way pipeline and is provided with an inlet (11), an outlet (12) and a second outlet (13),

the two sets of switch valves comprise a fixed plate (21), a valve plate (22), a fixed frame (23), a rotating shaft (24) and a driving device, one set is arranged between the inlet (11) and the outlet (12), the other set is arranged between the inlet (11) and the second outlet (13),

one fixing plate (21) is fixedly arranged in the valve body (1) to separate the inlet (11) from the outlet (12), the other fixing plate (21) is fixedly arranged in the valve body (1) to separate the inlet (11) from the second outlet (13), the two fixing plates (21) are both provided with material conveying holes (211),

the rotating shaft (24) penetrates through the valve body (1) and is rotatably arranged on the valve body (1), the fixing frame (23) is positioned in the valve body (1), one end of the fixing frame is fixedly connected with the rotating shaft (24), the other end of the fixing frame is connected with the valve plate (22),

the valve plate (22) is matched with the fixing plate (21) and rotates relative to the rotating shaft (24) together with the fixing frame (23) to open or cover the material conveying hole (211),

the driving device is arranged on the outer side of the valve body (1), is connected with one end, extending out of the valve body (1), of the rotating shaft (24) and is used for driving the rotating shaft (24) to rotate.

2. A pneumatic flap valve according to claim 1, characterized in that the edge of said delivery hole (211) is bevelled towards the centre of the valve body (1) in the direction from the outlet to the inlet.

3. A pneumatic flap valve according to claim 2, characterized in that said valve plate (22) is sized to fit the delivery hole (211) and has a beveled edge to fit the delivery hole (211).

4. A pneumatic flap valve according to claim 1, characterized in that the driving means is a cylinder (3) and a rotating arm (4), the rotating arm (4) is coaxially connected with the outer end of the rotating shaft (24) extending out of the valve body (1), the tail end of the cylinder (3) is rotatably mounted on the outer side of the valve body (1), and the rod end of the cylinder is rotatably connected with the rotating arm (4).

5. A pneumatic flap valve according to claim 1, characterized in that said drive means is a rotary motor which drives the shaft (24) in rotation.

6. The pneumatic flap valve according to claim 1, further comprising a fixing sleeve (51), a packing (53) and a sliding sleeve (52), wherein the fixing sleeve (51) is fixedly arranged on the valve body (1), the fixing sleeve (51) is provided with a shaft hole (511), a blind hole (512) is formed in one side of the outer portion of the valve body (1), the diameter of the blind hole (512) is larger than that of the shaft hole (511), the rotating shaft (24) penetrates through the shaft hole (511), the packing (53) is wound on the rotating shaft (24), the sliding sleeve (52) and the rotating shaft (24) are in clearance fit and are tightly pressed and arranged in the blind hole (512), and the packing (53) is tightly pressed inwards.

7. A pneumatic flap valve according to claim 6, characterized by further comprising a square seated ball bearing (54), the outer end of the rotary shaft (24) being provided with the square seated ball bearing (54), the square seated ball bearing (54) being mounted on the valve body (1) by means of a bolt fastening and pressing the sliding sleeve (52) inwardly.

8. The pneumatic flap valve according to claim 1, wherein the valve body (1) is further provided with a closed cavity (15), the cavity (15) is communicated with the outlet (12), a ventilating cloth (16) is arranged at the communication position, and high-pressure gas is introduced into the cavity (15).

9. The pneumatic flap valve according to claim 1, wherein the valve body (1) is further provided with a closed cavity (17), the second cavity (15) is communicated with the second outlet (13), a ventilating cloth (16) is arranged at the communication position, and high-pressure gas is introduced into the cavity (15).

10. A pneumatic flap valve according to claim 1, characterized in that said delivery hole (211) is a circular or square hole.