CN112682562B - Gas pressure control gas cut-off valve - Google Patents
Gas pressure control gas cut-off valve Download PDFInfo
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- CN112682562B CN112682562B CN202011635647.3A CN202011635647A CN112682562B CN 112682562 B CN112682562 B CN 112682562B CN 202011635647 A CN202011635647 A CN 202011635647A CN 112682562 B CN112682562 B CN 112682562B
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Abstract
The invention discloses a gas pressure control gas stop valve which comprises a main pipeline used for being connected into an air passage, a first installation pipeline used for installing a first valve core and communicated with the main pipeline, and a second installation pipeline used for installing a second valve core and communicated with the main pipeline, wherein the other end of the second installation pipeline is communicated with the first installation pipeline, the main pipeline is communicated with a gas pumping unit, and the gas pumping unit can selectively pump gas or supply gas for the main pipeline. The first valve core and the second valve core are controlled by the first air cylinder and the second air cylinder to close and open the main pipeline in sequence, the control of a mechanical transmission structure is not needed, the failure rate of the device is reduced, and the water hammer effect can be weakened.
Description
Technical Field
The invention relates to the field of valves, in particular to a gas pressure control gas stop valve.
Background
The valve type switch with the stopping function is called as a switch valve and generally comprises a pneumatic switch valve and an electric switch valve, and structurally, the valve body of the pneumatic switch valve and the valve body of the electric switch valve are not different, the main difference is that the pushing force for pushing a sliding block in the valve body to change the valve position is different, the pneumatic switch valve is characterized in that an operating cylinder which is used for pushing a piston to move to drive the sliding block to change the valve position of the valve body by control air in an air path (pipe), and the electric switch valve generates electromagnetic suction force through a spiral coil to drive the sliding block to change the valve position of the valve body.
Disclosure of Invention
The invention aims to provide a gas pressure control gas cut-off valve.
The purpose of the invention is realized by the technical scheme, which comprises a main pipeline used for connecting an air passage and a first installation pipeline used for installing a first valve core and communicated with the main pipeline, and is characterized in that the switch valve also comprises a second installation pipeline, one end of the second installation pipeline is communicated with the main pipeline and is provided with a second valve core, and the other end of the second installation pipeline is communicated with the first installation pipeline; the first valve core is movably arranged in the first installation pipeline, the second valve core is movably arranged in the second installation pipeline, the first valve core is connected with the first installation pipeline in a closed mode, the second valve core is connected with the second installation pipeline in a closed mode, and the first valve core and the second valve core can sequentially enter and close the main pipeline;
the switch valve also comprises a pumping and gas-supplying unit communicated with the main pipeline, and the pumping and gas-supplying unit can selectively pump air or supply air for the main pipeline.
Preferably, the distance between the second valve core and the air passage of the air pumping unit is greater than the distance between the first valve core and the air passage of the air pumping unit; and friction grains for increasing the friction force with the second installation pipeline are arranged on the side wall of the second valve core.
Preferably, an elastic stop block is fixedly connected to the main pipeline and is positioned at the interface position of the main pipeline and the first installation pipeline; the first valve core comprises a cylindrical first valve body and a hemispherical second valve body fixedly connected to the bottom end of the first valve body.
Preferably, the air pumping and supplying unit comprises an air pumping module, an air supplying module and a channel sealing module, the air pumping module and the air supplying module are both communicated with the first installation pipeline, the channel sealing module is driven by the air supplying module, and the communication position of the air pumping module and the first installation pipeline can be sealed.
Preferably, the air exhaust module comprises a first air cylinder, an L-shaped first connecting pipe and a first air pipe; the output end of the first cylinder is communicated with one end of a first connecting pipe, the other end of the first connecting pipe is communicated with the first mounting pipeline, one end of a first air pipe is communicated with the outside, and the other end of the first air pipe is communicated with the first connecting pipe; the gas-operated air cylinder is characterized in that a first check valve is arranged in the first air pipe, wherein gas can enter the outside from the first connecting pipe, and a second check valve is arranged in the first connecting pipe, wherein gas can enter the first air cylinder from the first mounting pipeline.
Preferably, the air supply module comprises a second air cylinder, an L-shaped second connecting pipe and a second air pipe; the output end of the second cylinder is communicated with one end of a second connecting pipe, the other end of the second connecting pipe is communicated with the first mounting pipeline, one end of a second air pipe is communicated with the outside, and the other end of the second air pipe is communicated with the second connecting pipe; and a third one-way valve through which gas can enter the second connecting pipe from the outside is arranged in the second gas pipe, and a fourth one-way valve through which gas can enter the first mounting pipeline from the second cylinder is arranged in the second connecting pipe.
Preferably, a first return spring for returning the piston is arranged between the piston of the second cylinder and the inner wall of the second cylinder.
Preferably, the first one-way valve, the second one-way valve, the third one-way valve and the fourth one-way valve comprise annular check blocks and connecting rods fixedly connected to the inner walls of the first connecting pipe or the second connecting pipe, one end of each connecting rod is fixedly connected to the inner pipe of the first connecting pipe or the second connecting pipe, the other end of each connecting rod is fixedly connected with a lantern ring, the valve blocks are movably located between the lantern rings and the check blocks, one end of each first transmission rod is fixedly connected to the center of the valve block, the other end of each first transmission rod movably penetrates through the lantern ring, and the second reset spring is sleeved on the first transmission rod and located between the lantern ring and the valve block.
Preferably, the channel closing module comprises a closing piston, a second transmission rod and a connecting rope, the closing piston can movably enter the first connecting pipe through the first installation pipeline, one end of the second transmission rod is fixedly connected to one side of the closing piston, the other end of the second transmission rod is fixedly connected to one end, far away from the valve block, of the first transmission rod of the fourth one-way valve, one end of the connecting rope is fixedly connected to the piston of the second cylinder, the other end of the connecting rope bypasses a steering column and is fixedly connected to the valve block of the fourth one-way valve, and the steering column is fixedly connected to the steering position of the inner wall of the second connecting pipe.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the switch of the main pipeline is controlled through air pressure, a mechanical transmission structure is not needed, the abrasion of the mechanical structure is avoided, and the service life is obviously prolonged;
2. when the fluid in the main pipeline is liquid, the first valve core and the second valve core can sequentially close the main pipeline, so that the closing effect is enhanced, and the water hammer effect and the water backflow phenomenon are obviously reduced;
3. the arrangement of the pipeline distance and the friction grains can ensure that the falling speed of the second valve core is slower than that of the first valve core, thereby achieving the effect of delaying and closing the main pipeline successively;
4. the elastic stop block is matched with the second valve body, so that the main pipeline can be in a semi-closed state, and the air output is controlled.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
The drawings of the present invention are described below.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the second valve core structure.
Fig. 3 is a schematic view of a first valve core structure.
Fig. 4 is a schematic view of the main pipe structure.
Fig. 5 is a schematic structural view of the check valve.
In the figure: 1. a main pipeline; 101. an elastic stopper; 2. a first valve spool; 201. a first valve body; 202. a second valve body; 3. a first installation conduit; 4. a second valve core; 41. rubbing the lines; 5. a second installation duct; 6. a first cylinder; 61. a first connecting pipe; 62. a first air pipe; 7. a first check valve; 8. a second one-way valve; 9. a second cylinder; 91. a second connecting pipe; 92. a second air pipe; 93. a first return spring; 10. a third check valve; 11. a fourth check valve; 12. an annular stop block; 13. a connecting rod; 14. a collar; 15. a valve block; 16. a first drive lever; 17. a second return spring; 18. a closed piston; 19. a second transmission rod; 20. connecting ropes; 21. a steering column.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the drawings.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the invention provides a gas pressure control gas cut-off valve, which comprises a main pipeline 1 used for connecting an air passage and a first installation pipeline 3 used for installing a first valve core 2 and communicated with the main pipeline 1, and is characterized in that the switch valve further comprises a second installation pipeline 5, one end of which is communicated with the main pipeline 1 and is provided with a second valve core 4, and the other end of the second installation pipeline 5 is communicated with the first installation pipeline 3; the first valve core 2 is movably arranged in the first installation pipeline 3, the second valve core 4 is movably arranged in the second installation pipeline 5, the first valve core 2 is connected with the first installation pipeline 3 in a closed mode, the second valve core 4 is connected with the second installation pipeline 5 in a closed mode, and the first valve core 2 and the second valve core 4 can sequentially enter and close the main pipeline 1;
the switch valve also comprises a pumping and gas-supplying unit communicated with the main pipeline 1, and the pumping and gas-supplying unit can selectively pump air or supply air for the main pipeline.
In the present embodiment, the main pipe 1 is provided with the first valve element 2 and the second valve element 4, and the user can drive the first valve element and the second valve element to open and close by controlling the air pumping unit.
As shown in fig. 2, the air passage distance from the second valve core 4 to the pumping unit is greater than the air passage distance from the first valve core 2 to the pumping unit; the side wall of the second valve core 4 is provided with friction lines 41 for increasing the friction force with the second installation pipe 5.
In this embodiment, the second valve core is provided with friction grains, so the friction force between the second valve core and the second installation pipeline is larger, and the distance from the second valve core to the air passage of the air pumping unit is farther, so that the second valve core can slowly open and close the main pipeline compared with the first valve core.
As shown in fig. 3 to 4, an elastic stopper 101 is fixedly connected to the main pipe 1, and the elastic stopper 101 is located at an interface position between the main pipe 1 and the first installation pipe 3; the first valve core 2 comprises a cylindrical first valve body 201 and a hemispherical second valve body 202 fixed at the bottom end of the first valve body 201.
In this embodiment, the elasticity dog cooperation second valve body can make the trunk line be in half closed condition to control the air output.
As shown in fig. 1, the air pumping and supplying unit includes an air pumping module, an air supplying module and a channel sealing module, the air pumping module and the air supplying module are both communicated with the first installation pipeline 3, the channel sealing module is driven by the air supplying module, and a communication position between the air pumping module and the first installation pipeline 3 can be sealed.
The air extraction module comprises a first air cylinder 6, an L-shaped first connecting pipe 61 and a first air pipe 62; the output end of the first air cylinder 6 is communicated with one end of a first connecting pipe 61, the other end of the first connecting pipe 61 is communicated with the first mounting pipeline 3, one end of a first air pipe 62 is communicated with the outside, and the other end of the first air pipe 62 is communicated with the first connecting pipe 61; a first check valve 7 is arranged in the first air pipe 62, and air can enter the first air cylinder 6 from the first connecting pipe 61, and a second check valve 8 is arranged in the first connecting pipe 61, and air can enter the first air cylinder 6 from the first installation pipeline 3.
The air feeding module comprises a second air cylinder 9, an L-shaped second connecting pipe 91 and a second air pipe 92; the output end of the second cylinder 9 is communicated with one end of a second connecting pipe 91, the other end of the second connecting pipe 91 is communicated with the first mounting pipeline 3, one end of a second air pipe 92 is communicated with the outside, and the other end of the second air pipe 92 is communicated with the second connecting pipe 91; a third one-way valve 10 through which gas can enter the second connecting pipe 91 from the outside is arranged in the second gas pipe 92, and a fourth one-way valve 10 through which gas can enter the first mounting pipeline 3 from the second cylinder 9 is arranged in the second connecting pipe 91.
In this embodiment, a user may control the first cylinder to pump air to open the first valve core and the second valve core, may control the second cylinder to pump air to control the first valve core and the second valve core to close, and when the first cylinder supplies air and the second cylinder pumps air, neither the first valve core nor the second valve core may operate.
As shown in the figure, each of the first check valve 7, the second check valve 8, the third check valve 10 and the fourth check valve 11 includes an annular stopper 12 and a connecting rod 13 which are fixedly connected to the inner wall of the first connecting pipe 61 or the second connecting pipe 91, one end of the connecting rod 13 is fixedly connected to the inner pipe of the first connecting pipe 61 or the second connecting pipe 91, the other end of the connecting rod 13 is fixedly connected to a lantern ring 14, the valve block 15 is movably located between the lantern ring 14 and the stopper 12, one end of the first transmission rod 16 is fixedly connected to the center of the valve block 15, the other end of the first transmission rod 16 movably passes through the lantern ring 14, and the second reset spring 17 is sleeved on the first transmission rod 16 and located between the lantern ring 14 and the valve block 15.
In this embodiment, the check valve allows only one-way passage of gas.
As shown in the figure, the channel closing module includes a closing piston 18, a second transmission rod 19 and a connection rope 20, the closing piston 18 is movable and enters a first connection pipe 61 through a first installation pipeline 3, one end of the second transmission rod 19 is fixedly connected to one side of the closing piston 18, the other end of the second transmission rod 19 is fixedly connected to one end, away from the valve block, of the first transmission rod of the fourth check valve 10, one end of the connection rope 20 is fixedly connected to the piston of the second cylinder 9, the other end of the connection rope bypasses the steering column 21 and is fixedly connected to the valve block of the fourth check valve 10, and the steering column 21 is fixedly connected to the steering position on the inner wall of the second connection pipe 91.
In this embodiment, when first cylinder was bled, because the effect of connecting the rope can not drive the action of fourth check valve, so can accomplish the function of opening the valve, when the second cylinder was sent gas, closed piston rod can be blockked up first connecting pipe under the drive of fourth check valve, so can accomplish the function of closing the valve.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (4)
1. A gas pressure control gas cut-off valve comprises a main pipeline (1) used for being connected into an air passage and a first installation pipeline (3) used for installing a first valve core (2) and communicated with the main pipeline (1), and is characterized by further comprising a second installation pipeline (5) with one end communicated with the main pipeline (1) and provided with a second valve core (4), and the other end of the second installation pipeline (5) is communicated with the first installation pipeline (3); the first valve core (2) is movably arranged in the first installation pipeline (3), the second valve core (4) is movably arranged in the second installation pipeline (5), the first valve core (2) is connected with the first installation pipeline (3) in a sealing mode, the second valve core (4) is connected with the second installation pipeline (5) in a sealing mode, and the first valve core (2) and the second valve core (4) can sequentially enter and seal the main pipeline (1);
the cut-off valve also comprises a pumping and gas-supplying unit communicated with the main pipeline (1), and the pumping and gas-supplying unit can selectively pump air or supply air for the main pipeline;
the air pumping and feeding unit comprises an air pumping module, an air feeding module and a channel sealing module, wherein the air pumping module and the air feeding module are communicated with the first mounting pipeline (3), the channel sealing module is driven by the air feeding module and can seal the communication position of the air pumping module and the first mounting pipeline (3);
the air extraction module comprises a first air cylinder (6), an L-shaped first connecting pipe (61) and a first air pipe (62); the output end of the first cylinder (6) is communicated with one end of a first connecting pipe (61), the other end of the first connecting pipe (61) is communicated with the first mounting pipeline (3), one end of a first air pipe (62) is communicated with the outside, and the other end of the first air pipe (62) is communicated with the first connecting pipe (61); a first check valve (7) through which gas can enter the outside from a first connecting pipe (61) is arranged in the first gas pipe (62), and a second check valve (8) through which gas can enter the first cylinder (6) from the first mounting pipeline (3) is arranged in the first connecting pipe (61);
the air supply module comprises a second air cylinder (9), an L-shaped second connecting pipe (91) and a second air pipe (92); the output end of the second cylinder (9) is communicated with one end of a second connecting pipe (91), the other end of the second connecting pipe (91) is communicated with the first mounting pipeline (3), one end of a second air pipe (92) is communicated with the outside, and the other end of the second air pipe (92) is communicated with the second connecting pipe (91); a third one-way valve (10) allowing gas to enter a second connecting pipe (91) from the outside is arranged in the second gas pipe (92), and a fourth one-way valve (11) allowing gas to enter the first mounting pipeline (3) from a second cylinder (9) is arranged in the second connecting pipe (91);
the first check valve (7), the second check valve (8), the third check valve (10) and the fourth check valve (11) respectively comprise an annular stop block (12) and a connecting rod (13) which are fixedly connected to the inner wall of a first connecting pipe (61) or a second connecting pipe (91), one end of the connecting rod (13) is fixedly connected to the inner pipe of the first connecting pipe (61) or the second connecting pipe (91), the other end of the connecting rod (13) is fixedly connected with a lantern ring (14), a valve block (15) is movably located between the lantern ring (14) and the stop block (12), one end of a first transmission rod (16) is fixedly connected to the center of the valve block (15), the other end of the first transmission rod (16) movably penetrates through the lantern ring (14), and a second transmission rod reset spring (17) is sleeved on the first transmission rod (16) and located between the lantern ring (14) and the valve block (15);
the channel closing module comprises a closing piston (18), a second transmission rod (19) and a connecting rope (20), wherein the closing piston (18) enters a first connecting pipe (61) through a first installation pipeline (3) in a movable mode, one end of the second transmission rod (19) is fixedly connected to one side of the closing piston (18), the other end of the second transmission rod (19) is fixedly connected to one end, far away from a valve block, of a first transmission rod of a fourth one-way valve (11), one end of the connecting rope (20) is fixedly connected to a piston of a second cylinder (9), the other end of the connecting rope bypasses a steering column (21) and is fixedly connected to the valve block of the fourth one-way valve (11), and the steering column (21) is fixedly connected to the inner wall of the second connecting pipe (91) in a steering mode.
2. The gas pressure control gas shut-off valve according to claim 1, characterized in that the gas passage distance from the second valve core (4) to the pumping unit is greater than the gas passage distance from the first valve core (2) to the pumping unit; and friction grains (41) used for increasing the friction force with the second installation pipeline (5) are arranged on the side wall of the second valve core (4).
3. The gas pressure control gas shut-off valve according to claim 1, characterized in that an elastic stop block (101) is fixedly connected to the main pipe (1), and the elastic stop block (101) is positioned at the interface position of the main pipe (1) and the first mounting pipe (3); the first valve core (2) comprises a cylindrical first valve body (201) and a hemispherical second valve body (202) fixedly connected to the bottom end of the first valve body (201).
4. The gas pressure control gas shut-off valve according to claim 1, characterized in that a first return spring (93) for returning the piston is provided between the piston of the second cylinder (9) and the inner wall of the second cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635647.3A CN112682562B (en) | 2020-12-31 | 2020-12-31 | Gas pressure control gas cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011635647.3A CN112682562B (en) | 2020-12-31 | 2020-12-31 | Gas pressure control gas cut-off valve |
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| Publication Number | Publication Date |
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| CN112682562A CN112682562A (en) | 2021-04-20 |
| CN112682562B true CN112682562B (en) | 2022-09-30 |
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| CN202011635647.3A Active CN112682562B (en) | 2020-12-31 | 2020-12-31 | Gas pressure control gas cut-off valve |
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