CN212297658U

CN212297658U - Multifunctional valve

Info

Publication number: CN212297658U
Application number: CN202020673683.8U
Authority: CN
Inventors: 王良; 王健
Original assignee: SHANGHAI KAIKE VALVE MANUFACTURING CO LTD
Current assignee: SHANGHAI KAIKE VALVE MANUFACTURING CO LTD
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-01-05
Anticipated expiration: 2030-04-28

Abstract

The utility model relates to a valve, in particular to multifunctional valve, include: the valve comprises a valve body, a valve rod, a valve seat, a disc plate, a valve plate, a driving device and a guide mechanism; wherein, having the runner in the valve body, the disk seat sets up in the valve body to have the water hole of crossing with the runner intercommunication, the valve rod inserts the valve body along the axis direction of perpendicular to runner, and enters in the runner, drive arrangement is connected with the valve rod, and guiding mechanism is used for driving the valve rod and moves along the axis direction of perpendicular to runner, forces the rotatory angle of predetermineeing of valve rod. Compared with the prior art, the valve plate is used for forming sealing with the valve seat when the valve rod moves from the starting position to the ending position, and sealing the water passing hole; the dish board is used for the valve rod from the motion of termination position to start position when, and forms sealedly between the disk seat, opens cross the water hole, the dish board still is used for the valve rod from the in-process of start position to the motion of termination position, follows the valve rod and rotates, adjusts the aperture in water hole to make the multifunctional valve possess two kinds of characteristics of gate valve and butterfly valve simultaneously.

Description

Multifunctional valve

Technical Field

The utility model discloses an embodiment relates to a ooff valve, in particular to multifunctional valve.

Background

The use of flat gate valves is becoming more common in long-distance pipelines for oil, natural gas and the like, and it is generally necessary to perform corresponding throttling, regulating and the like functions on the flow, pressure and the like of pipeline media in industrial systems. However, most of the existing flat gate valves are only used as switching valves, and for the adjustment of media in pipelines, due to the design of the flat gate valves, the precise flow adjustment cannot be achieved in some special pipelines like butterfly valves.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model aims to design a multifunctional valve, can satisfy in the pipeline to the throttle of medium, can realize again the accurate regulation to the medium flow in the pipeline.

In order to solve the above technical problem, an embodiment of the utility model provides a multifunctional valve, include: a valve body, a valve rod and a valve seat; wherein, the runner has in the valve body, the runner is inlet side and outlet side respectively along the both ends of self axis direction, the disk seat set up in the valve body to have with the water hole of crossing of runner intercommunication, the valve rod is along the perpendicular to the axis direction of runner inserts the valve body, and enters into in the runner, multifunctional valve includes:

the disc plate and the valve plate are arranged on the valve rod; the disc plate and the valve plate are oppositely arranged along the axial direction of the valve rod;

the driving device is connected with the valve rod and is used for driving the valve rod to move along the direction vertical to the axis of the flow passage;

the guide mechanism is arranged on the valve body and is in sliding fit with the valve rod; the guide mechanism is used for forcing the valve rod to rotate by a preset angle when the valve rod moves along the direction vertical to the axis of the flow channel;

when the valve rod moves from an initial position to a final position along the direction perpendicular to the axis of the flow channel, the valve rod drives the disc plate to rotate by a preset angle to adjust the opening of the water passing hole, then the disc plate is moved out of the flow channel, and the valve plate is brought into the flow channel until a seal is formed between the valve plate and the valve seat, and the water passing hole is sealed;

when the valve rod moves from the ending position to the starting position along the direction perpendicular to the axis of the flow channel, the valve plate is moved out of the flow channel, and the disc plate is brought into the flow channel until a seal is formed between the disc plate and the valve seat.

Through the above-mentioned content difficult discovery, because be provided with butterfly plate and valve plate simultaneously on the valve rod of multifunctional valve, and butterfly plate and valve plate are the relative setting of axis direction along the valve rod, this multifunctional valve still includes simultaneously: the valve comprises a driving device and a guide mechanism, wherein the driving device is used for driving a valve rod to move along the direction vertical to the axis of the flow channel, and the guide mechanism is arranged on the valve body and is in sliding fit with the valve rod, so that the valve rod is forced to rotate by a preset angle when the valve rod moves along the direction vertical to the axis of the flow channel. Therefore, in practical application, when the driving device drives the valve rod to move from the initial position to the final position, the valve plate can be brought into the flow channel by the valve plate, and a seal is formed between the valve plate and the valve seat to close the water passing hole. And when the valve rod moved to the initiating location from the terminating location, corresponding valve plate can be shifted out the runner, and the butterfly plate and then can be brought into the runner by the valve rod, and form sealedly between the disk seat, open the water hole, the dish board still is used for the in-process of valve rod from the initiating location to the terminating location motion simultaneously, it is rotatory to follow the valve rod, in order to reach the purpose of adjusting water hole aperture, thereby this embodiment's multifunctional valve has possessed two kinds of characteristics of gate valve and butterfly valve simultaneously, the throttle of medium in the pipeline that can satisfy, can realize again crossing the accurate regulation of water hole aperture.

Further, the disc plate is used for being parallel to the axial direction of the flow channel when the valve rod moves from the termination position to the starting position; the disc plate is also used for moving out of the flow channel when the valve rod moves from the starting position to the ending position and is perpendicular to the axial direction of the flow channel.

Further, the valve plate with the dish board all valve rod fixed connection, the dish board is followed the orthographic projection of valve rod axis direction is located the thickness within range of valve plate.

Further, the valve plate is rotatably connected with the valve rod, and the disc plate is fixedly connected with the valve rod; the valve plate is always perpendicular to the axis direction of the flow channel.

Furthermore, the valve body is also internally provided with a first accommodating cavity for accommodating the disc plate and a second accommodating cavity for accommodating the valve plate, and the first accommodating cavity and the second accommodating cavity are oppositely arranged along the axial direction of the valve rod and are communicated with the flow channel; the disc plate is used for entering the first accommodating cavity when the valve rod moves from a starting position to a terminating position; the valve plate is used for entering the second accommodating cavity when the valve rod moves from the termination position to the start position.

Further, the guide mechanism includes:

the positioning pin is arranged on the valve rod;

the support is arranged at the top of the valve body along the axial direction of the valve rod; said valve stem having a portion that enters said housing; the bracket is provided with a sliding chute in sliding fit with the positioning pin;

the locating pin is used for the valve rod from the initial position when moving to the end position, with the spout cooperation drives the valve rod is followed the orbit of spout is around the rotatory preset angle of self axis direction.

Further, the chute includes: the spiral groove section is connected with the vertical groove section; one end of the spiral groove section is connected with one end, opposite to the valve body, of the vertical groove section, and the other end of the spiral groove section faces the valve body and extends spirally around the axis direction of the valve rod.

Further, a first annular sealing element is arranged on one side, opposite to the valve rod, of the valve seat, and is used for forming a first sealing surface with the valve plate;

and a second annular sealing element is arranged on one side of the valve seat, which is opposite to the flow passage, and is used for forming a second sealing surface with the disc plate.

Further, the valve body is around the axis direction of runner sets up annular mounting groove, the disk seat set up in annular mounting groove, the disk seat includes:

the annular seat body is arranged in the annular mounting groove and is in sliding fit with the groove wall of the annular mounting groove; the first annular sealing element is arranged on one side of the annular seat body relative to the valve rod, and the second annular sealing element is arranged on one side of the annular seat body relative to the flow passage;

a plurality of resilient connecting members; each resilience connecting assembly is arranged at the bottom of the annular mounting groove and is annularly arranged around the axis direction of the annular seat body at equal intervals; each resilience connecting assembly is connected with the annular seat body and used for applying resilience force to the annular seat body along the axial direction perpendicular to the valve rod.

Furthermore, the annular seat body is also provided with a plurality of air inlet channels around the axis direction of the annular seat body; each air inlet channel is provided with a first air inlet side opposite to the valve rod and a second air inlet side opposite to the groove wall of the annular mounting groove, and the first air inlet side and the second air inlet side are communicated with each other in any air inlet channel.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic view of an internal structure of a valve body according to a first embodiment of the present invention;

fig. 2 is an assembly view of the multi-function valve according to the first embodiment of the present invention;

fig. 3 is a schematic view of the positioning pin in the sliding groove when the valve stem is at the end position according to the first embodiment of the present invention;

fig. 4 is a schematic view of the positioning pin in the sliding groove when the valve rod moves from the stop position to the start position according to the first embodiment of the present invention;

fig. 5 is a schematic view of the positioning pin in the sliding groove when the valve rod is at the initial position according to the first embodiment of the present invention;

FIG. 6 is an enlarged view of a portion A of FIG. 1;

fig. 7 is an assembly diagram of a valve seat and a valve body according to a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

A first embodiment of the present invention relates to a multifunctional valve, as shown in fig. 1 and 2, comprising: valve body 1, valve rod 2 and valve seat 3. Wherein, have runner 11 in the valve body 1, the both ends of runner 11 along its axis direction are inlet side 111 and outlet side 112 respectively, and valve seat 3 sets up in valve body 1 to have the water hole 31 of crossing with runner 11 intercommunication, valve rod 2 inserts valve body 3 along the axis direction perpendicular to runner 11, and in going into runner 11.

As shown in fig. 1 and 2, the multifunctional valve of the present embodiment includes: all set up dish board 4 and valve plate 5 on valve rod 2, dish board 4 and valve plate 5 set up relatively along the axis direction of valve rod 2.

As shown in fig. 1 and 2, the multifunctional valve of the present embodiment further includes: a driving device 6 connected with the valve rod 2 and a guide mechanism 7 arranged on the valve body 3. Wherein the driving device 6 is used for driving the valve rod 2 to move along the direction vertical to the axis of the flow channel 11. And a guide mechanism 7 is slidably engaged with the valve stem 2, the guide mechanism 7 being configured to force the valve stem 2 to rotate by a predetermined angle when the valve stem 2 is moved in a direction perpendicular to the axis of the flow passage 11.

In practical application, as shown in fig. 1 and 2, the valve rod 2 can be driven by the driving device 6 to move along the direction perpendicular to the axis of the flow channel 11, that is, when the valve rod 2 moves from the initial position to the final position along the direction perpendicular to the axis of the flow channel 11, the disc plate 4 can be driven by the valve rod 2 to rotate by a preset angle, so as to adjust the opening of the water through hole 31, and then the disc plate 4 is moved out of the flow channel 11 by the valve rod 2, and the valve plate 5 is brought into the flow channel 11 until a seal is formed between the valve plate 5 and the valve seat 3, so as to close the water through hole 31. When the valve rod 2 moves from the ending position to the starting position along the axial direction perpendicular to the flow channel 11, the valve rod 2 can move the valve plate 3 out of the flow channel 11, and the disc plate 4 can be brought into the flow channel 11 until a seal is formed between the disc plate 4 and the valve seat 3, so that the water through hole 31 is opened, and the adjustment of the opening degree of the water through hole 31 by the disc plate 4 can be realized. Therefore, the multifunctional valve of the embodiment has two characteristics of a gate valve and a butterfly valve, and can not only meet the throttling of the medium in the pipeline, but also meet the regulation of the medium flow in the pipeline.

Specifically, in the present embodiment, as shown in fig. 1 and 2, when the valve stem 2 moves from the end position to the start position, the disc plate 4 is parallel to the axial direction of the flow passage 11, that is, the disc plate 4 is in a state where the water through hole 31 of the valve seat 3 is fully opened, that is, the opening degree of the water through hole 31 is maximized. And when the valve rod 2 moves from the initial position to the final position, the valve rod 2 can be forced to drive the disc plate 4 to rotate by a preset angle by means of sliding fit of the guide mechanism 7 and the valve rod 2, namely, the disc plate 4 can achieve the purpose of adjusting the opening degree of the water passing hole 31 through the rotation of the disc plate 4 at the moment until the disc plate 4 is completely vertical to the axis of the flow channel 11, namely, the disc plate 4 completely seals the water passing hole 31. At this time, the driving device 6 continues to drive the valve rod 2 to move towards the end position, the disc plate 4 can be gradually moved out of the flow channel 11 under the driving of the valve rod 2, the corresponding valve plate 5 is brought into the flow channel 11, and when the valve rod 2 moves to the start position, the valve plate 5 can completely seal the water through hole 31, so that the purpose of throttling the medium in the flow channel 11 is achieved.

Further, it is noted that, in order to satisfy the rotation driving of the valve rod 2 by the guide mechanism 7, as shown in fig. 2 to 5, the guide mechanism 7 includes: a bracket 71 arranged on the top of the valve body 1, and a positioning pin 72 arranged on the valve rod 2. Wherein the bracket 71 is arranged along the axial direction of the valve rod 2, the positioning pin 72 is arranged along the direction vertical to the axial direction of the valve rod 2, and the valve rod 2 enters the bracket 71 from part and is connected with the bracket 71 in a rotating way. Meanwhile, the bracket 71 is further provided with a sliding groove 73 which can be in sliding fit with the positioning pin 72, and the sliding groove 73 is in sliding fit with the positioning pin 72. For example, the sliding grooves 73 are respectively formed in two sides of the bracket 71, the positioning pin 72 penetrates through the valve rod 2, two ends of the positioning pin 72 respectively penetrate through the sliding grooves 73 in the two sides of the bracket 71 and are in sliding fit with the sliding grooves 73, and the lifting and rotating motion of the valve rod 2 can be realized through the matching of two ends of the positioning pin 72 with the sliding grooves 73 in the two sides of the bracket 71. In practical application, the positioning pin 72 is used for being matched with the sliding groove 73 when the valve rod 2 moves from the start position to the end position, and forcibly drives the valve rod 2 to rotate around the axis direction of the valve rod 2 by a preset angle.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the valve body 1 further includes a first housing chamber 12 for housing the disc 4 and a second housing chamber 13 for housing the valve plate 5. The first accommodating cavity 12 and the second accommodating cavity 13 are oppositely arranged along the axial direction of the valve rod 2 and are both communicated with the flow channel 11, that is, the first accommodating cavity 12 is located at the top of the flow channel 11, and the second accommodating cavity 13 is located at the bottom of the flow channel 11. Thus, it can be seen from fig. 1 that when the valve rod 2 is in the initial position, the valve plate 5 is located in the second receiving chamber 13, and the disc plate 4 is located in the flow passage 11 and forms a seal with the valve seat 3, and when the valve rod 2 moves from the initial position to the final position, the disc plate 4 can be moved out of the flow passage 11 and into the first receiving chamber 12, and the corresponding valve plate 5 leaves the second receiving chamber 13 and is brought into the flow passage 11 by the valve rod 2 and forms a seal with the valve seat 3. Conversely, when the valve plate 2 moves from the end position to the start position, the valve plate 5 can be moved out of the flow channel 11 by the driving of the valve rod 2 and reenters the second accommodating cavity 13, and the corresponding disc plate 4 can reenter the flow channel 11 from the first accommodating cavity 12 and form a seal with the valve seat 3.

In addition, in the present embodiment, the description is given in conjunction with fig. 3 to 5. The chute 73 includes: a vertical groove section 731 extending in the axial direction of the valve stem 2, and a spiral groove section 732 connected to the vertical groove section 731. Wherein one end of the spiral groove section 732 is connected to one end of the vertical groove section 731 with respect to the valve body 1, and the other end of the spiral groove section 732 extends spirally toward the valve body 1 and around the axial direction of the valve stem 2. Therefore, it is easy to see that, when the valve rod 2 moves from the initial position to the initial position along the axial direction perpendicular to the flow channel 11, as shown in fig. 3 and 4, the valve rod 2 can be forced to guide the positioning pin 72 by the spiral groove section 732 with the help of the matching between the spiral groove section 732 and the positioning pin 72, so that the positioning pin 72 is forced to drive the valve rod 2 to rotate at a certain angle, and the disc plate 4 can rotate synchronously with the valve rod 2 under the rotation of the valve rod 2, thereby realizing the adjustment of the opening degree of the water through hole 31. When the disc 4 rotates to a direction perpendicular to the axis of the flow channel 11, as shown in fig. 4 and 5, if the driving device 6 continues to drive the valve rod 2 to move towards the end position, the positioning pin 72 can directly enter the vertical groove section 731 of the sliding groove 73, and by means of the sliding fit between the vertical groove section 731 and the positioning pin 72, the valve rod 2 can drive the disc 4 and the valve plate 5 to perform linear motion, so that the disc 4 is gradually moved out of the flow channel 11 and gradually brought into the first accommodating chamber 12, the valve plate 5 is brought into the flow channel 11 from the second accommodating chamber 13, and the water through hole 31 is gradually closed. On the contrary, as shown in fig. 3 to 5, when the driving device 6 drives the valve rod 2 to move from the ending position to the starting position, the valve plate 5 can be gradually moved out of the flow passage 11 by the valve rod 2 and re-enter the second accommodating chamber 13, and the disc plate 4 can be moved into the flow passage 11 again from the first accommodating chamber 12 and re-establish the sealing with the valve seat 3.

From this it is difficult to see, with the help of the spiral groove section 732 of locating pin 72 and spout 73, the cooperation of vertical groove section 731, the straight line elevating movement of valve rod 2 has not only been realized, can also be at valve rod 2 from the initial segment in-process of initiating position to the motion of terminating position, realize the rotary motion of valve rod 2, thereby can guarantee valve plate 5 to the shutoff of crossing water hole 31, accomplish the throttle effect to the interior medium of runner 11, and can also guarantee that dish board 4 adjusts the aperture of crossing water hole 31, the realization is to the accurate control of medium flow in the runner 11. Meanwhile, by means of the matching of the spiral groove section 732 and the vertical groove section 731, a certain section sense can be fed back to a worker through a manual driving device in the process that the valve rod 2 moves from the starting position to the ending position, so that the controllability of the valve rod 2 can be further improved by the worker.

In addition, in order to drive the valve rod 2, in the present embodiment, as shown in fig. 2, a hand wheel driving device may be used as the driving device 6, and the linear movement of the valve rod 2 in the up-and-down direction may be achieved by manually rotating the hand wheel. Alternatively, the drive device 6 may be an electric drive device, by which the lifting movement of the valve rod 2 can be automatically controlled, so that the rotation of the disc plate 4 can be adjusted more precisely.

It should be noted that, in the present embodiment, the valve plate 5 may be fixedly connected to the valve rod 2, or may be rotatably connected to the valve rod 2. Specifically, as shown in fig. 1 and 2, when the valve plate 5 and the valve rod 2 are fixedly connected, that is, the valve plate 5 and the valve rod 2 are locked and fixed by corresponding locking members, the valve plate 5 and the disc plate 4 at this time are in the same direction, that is, the orthogonal projection of the disc plate 4 along the axial direction of the valve rod 2 is always within the thickness range of the valve plate 5. Therefore, in the process that the valve rod 2 moves from the starting position to the ending position, when the disc plate 4 rotates to the position perpendicular to the axial direction of the flow channel 11 along with the valve rod 2, the valve plate 5 is just in the position, and at the moment, when the disc plate 4 and the valve plate 5 rise along with the valve rod 2, the disc plate 4 and the valve plate 5 can directly pass through the joint part of the first accommodating cavity 12 and the flow channel 11 and the joint part of the second accommodating cavity 13 and the flow channel 11 respectively, so that the valve body 1 can not interfere with the rising of the disc plate 4 and the valve plate 5, and vice versa.

And when valve plate 5 and valve rod 2 adopted the mode of rotating to be connected, can adopt the axle sleeve to realize mutual pivot each other between valve plate 5 and the valve rod 2 promptly for valve rod 2 is at rotatory in-process, and valve plate 5 can not follow the rotation of valve rod 2 and rotate, consequently, when installing valve plate 5, because of guaranteeing that valve plate 5 is perpendicular with the axis of runner 11 all the time. Through the mode, the valve body 1 can be ensured not to interfere the disc plate 4 and the valve plate 5 when lifting, and the lifting motion of the disc plate 4 and the valve plate 5 is realized.

Furthermore, in order to achieve sealing between the disc plate 4 and the valve plate 5 and the valve seat 3, respectively, in the present embodiment, as shown in fig. 6, a first annular sealing member 8 is provided on a side of the valve seat 4 opposite to the valve stem 2, the first annular sealing member 8 is used for forming a first sealing surface (not shown) with the valve plate 5, meanwhile, a second annular sealing member 9 is provided on a side of the valve seat 3 opposite to the flow passage 11, and the second annular sealing member 9 is used for forming a second sealing surface (not shown) with the disc plate 4.

Specifically, in the present embodiment, as shown in fig. 6, the valve body 1 is provided with an annular mounting groove 14 around the axial direction of the flow passage 11, and the valve seat 3 is disposed in the annular mounting groove 14. Also, the valve seat 3 includes: and the annular seat body 21 is arranged in the annular mounting groove 14, the first annular sealing element 8 is arranged on one side of the annular seat body 21 relative to the valve rod 2, and the second annular sealing element 9 is arranged on one side of the annular seat body 21 relative to the flow passage 11. Wherein, the first annular sealing element 8 is used for forming a seal by matching with the valve plate 5 after the valve plate 5 enters the flow channel 11, the second annular sealing element 9 is used for forming a seal by matching with the disc plate 4 after the disc plate 4 enters the flow channel 11, and meanwhile, the annular seat body 21 is also in sliding fit with the groove wall 141 of the annular mounting groove 14.

In addition, in the present embodiment, as shown in fig. 6, the valve seat 3 further includes: a plurality of resilient connecting members 24. And each resilience connecting assembly 24 is arranged at the groove bottom 142 of the annular mounting groove 14, and each resilience connecting assembly is annularly arranged around the axis direction of the annular seat body 21 at equal intervals. Each rebound connection assembly 24 is connected to the annular seat body 21 and is adapted to apply a rebound force to the annular seat body 21 in a direction perpendicular to the axis of the valve stem 2. From this it can be seen that, with the help of the resilience force that each resilience link assembly 24 applyed to annular seat body 21 for dish board 4 can closely laminate with the second annular seal 9 on the annular seat body 21 all the time following the pivoted in-process of valve rod 2, thereby avoids appearing the leakage phenomenon. In addition, in the present embodiment, each of the rebound connection assemblies 24 specifically includes, as shown in fig. 6: the bolt 241 is disposed in the annular mounting groove 14, and the spring 242 is sleeved on the bolt 241, and the root of the bolt 241 is fixed on the groove bottom 142 of the annular mounting groove 14, and the spring 242 is connected to the groove bottom of the annular mounting groove 142 and the annular seat body 21, respectively. In practical applications, the resilient force exerted by each spring 242 on the annular seat body 21 can make the annular seat body 21 always slide towards the valve rod 2, so as to realize the sealing of the first annular seal 8 and the valve plate 5 and the sealing of the second annular seal 9 and the disc plate 4.

In addition, the first annular sealing element 21 and the second annular sealing element 22 used in the present embodiment may be flexible sealing rings similar to rubber, silica gel, or plastic, or may also be hard metal sealing elements to seal with the valve plate 5 and the disc plate 4, respectively.

Further, as shown in fig. 1 and 2, preferably, in the present embodiment, two valve seats 3 may be provided, and the two valve seats 3 may be respectively disposed with the axis of the valve stem 2 as a symmetry axis, so that the two valve seats 3 may always apply a resilient force to the valve plate 5 or the butterfly plate 4, and thus the sealing performance between the valve plate 5 or the butterfly plate 4 and the valve seats 3 may be further improved.

The second embodiment of the present invention relates to a multifunctional valve, which is further improved on the basis of the first embodiment, and the main improvement lies in that, as shown in fig. 7, the annular seat body 21 is further provided with a plurality of air inlet channels 25 around the axis direction thereof, and each air inlet channel 25 has a first air inlet side 251 disposed opposite to the valve rod 2 and a second air inlet side 252 disposed opposite to the groove wall 141 of the annular mounting groove 14. Meanwhile, in any intake passage 25, the first intake side 251 and the second intake side 252 communicate with each other.

It can be seen from the above that, through each air inlet channel 25 provided on the annular seat body 21, the air inlet channel 25 can be filled with air all the time, so that when the valve plate 5 moves up and down along with the valve rod 2, with the aid of the first air inlet side 251, a vacuum area can be prevented from being formed between the annular seat body 21 and the valve plate 5, and the valve plate 5 is prevented from being stuck, so that the valve plate 5 can smoothly follow the valve rod 2 to move linearly between the first flow channel 11 and the second accommodating cavity 13. Meanwhile, by means of the second air inlet side 252, the disc plate 4 can freely slide in the annular mounting groove 14 by means of the resilience connecting assemblies 24 in the rotating process of the annular seat body 21, and the annular seat body 21 is prevented from being blocked in the annular mounting groove 14 due to the fact that a vacuum area is formed between the annular seat body 21 and the wall of the annular mounting groove 14, so that the second annular sealing element 9 can be attached to the disc plate 4 all the time, and the sealing performance of the disc plate is improved.

Preferably, in order to further improve the sealing performance between the annular seat body 21 and the groove wall 141 and the groove bottom 142 of the annular installation groove 14, as shown in fig. 7, the annular seat body 21 is further sleeved with a sealing ring 10 and a sealing ring 20, and the annular seat body can form sealing surfaces with the groove wall 141 and the groove bottom 142 of the annular installation groove 14 through the sealing ring 10 and the sealing ring 20, so that the sealing performance between the annular seat body 21 and the annular installation groove 14 can be further improved.

It will be understood by those skilled in the art that the foregoing embodiments are specific to the implementation of the present invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. A multifunctional valve comprising: a valve body, a valve rod and a valve seat; wherein, the runner has in the valve body, the runner is inlet side and outlet side respectively along the both ends of self axis direction, the disk seat set up in the valve body to have with the water hole of crossing of runner intercommunication, the valve rod is along the perpendicular to the axis direction of runner inserts the valve body, and enter in the runner, its characterized in that, multifunctional valve includes:

2. The multifunctional valve of claim 1, wherein said disc is adapted to be parallel to the axial direction of said flow passage when said valve stem is moved from the final position to the initial position;

the disc plate is also used for moving out of the flow channel when the valve rod moves from the starting position to the ending position and is perpendicular to the axial direction of the flow channel.

3. The multifunctional valve according to claim 2, wherein the valve plate and the disc plate are fixedly connected to the valve stem, and the orthographic projection of the disc plate along the axial direction of the valve stem is within the thickness range of the valve plate.

4. The multifunctional valve of claim 2, wherein said valve plate is rotatably coupled to said valve stem, and said disc plate is fixedly coupled to said valve stem; the valve plate is always perpendicular to the axis direction of the flow channel.

5. The multifunctional valve according to claim 1, wherein the valve body further has a first housing chamber for housing the disc plate and a second housing chamber for housing the valve plate, the first housing chamber and the second housing chamber being disposed opposite to each other along the axial direction of the valve stem and both communicating with the flow passage;

the disc plate is used for entering the first accommodating cavity when the valve rod moves from a starting position to a terminating position; the valve plate is used for entering the second accommodating cavity when the valve rod moves from the termination position to the start position.

6. The multifunctional valve of claim 1, wherein said guide mechanism comprises:

the positioning pin is arranged on the valve rod;

7. The multifunctional valve of claim 6, wherein said chute comprises: the spiral groove section is connected with the vertical groove section;

one end of the spiral groove section is connected with one end, opposite to the valve body, of the vertical groove section, and the other end of the spiral groove section faces the valve body and extends spirally around the axis direction of the valve rod.

8. The multifunctional valve according to any one of claims 1 to 7, wherein a side of said valve seat opposite to said valve stem is provided with a first annular seal for forming a first sealing surface with a valve plate;

9. The multifunctional valve according to claim 8, wherein said valve body is provided with an annular mounting groove around an axial direction of said flow passage, said valve seat is disposed in said annular mounting groove, said valve seat comprises:

10. The multifunctional valve according to claim 9, wherein said annular seat body further defines a plurality of air inlet passages about its axis;

each air inlet channel is provided with a first air inlet side opposite to the valve rod and a second air inlet side opposite to the groove wall of the annular mounting groove, and the first air inlet side and the second air inlet side are communicated with each other in any air inlet channel.