CN115435116A

CN115435116A - Vacuum control valve equipment and suction method

Info

Publication number: CN115435116A
Application number: CN202211311246.1A
Authority: CN
Inventors: 阳平坚; 洪宗虎
Original assignee: Zhejiang Smart Cloud Technology Co ltd
Current assignee: Zhejiang Smart Cloud Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-12-06
Anticipated expiration: 2042-10-25
Also published as: CN115435116B

Abstract

The invention discloses vacuum control valve equipment and a suction method, and belongs to the technical field of control valves. A vacuum control valve device comprises a mounting seat mounted on a lifter, wherein a guide pipe is connected to the mounting seat, one end, away from the mounting seat, of the guide pipe is connected with a valve body, a working hole, a negative pressure hole and an emptying hole are formed in the valve body, the working hole, the negative pressure hole and the emptying hole are mutually communicated through a connecting cavity, a piston block is movably arranged in the connecting cavity, and a driving assembly for driving the piston block to displace is arranged in the valve body; the water level control device has a simple and reasonable structure, is completely controlled by depending on the water level in the lifter, does not need to depend on a circuit control system and a magnetic attraction mode, can stably and continuously control the opening and closing of the valve body, and has high stability and strong practicability.

Description

Vacuum control valve equipment and suction method

Technical Field

The invention relates to the technical field of control valves, in particular to vacuum control valve equipment and a suction method.

Background

With the increasing awareness of environmental protection, the technology of collecting domestic wastewater and sewage by dispersion and vacuum is more and more widely applied. The traditional scheme of scatter point vacuum collection is: the lifters are arranged at the dispersion points, the domestic wastewater flows into the lifters through gravity flow, and the vacuum interface valve is arranged on a drainage pipeline between the lifters and the vacuum wastewater tank. The lifter is provided with a liquid level sensor, after the liquid level sensor detects a high liquid level, the controller controls the three-way electromagnetic valve to open the vacuum interface valve, waste sewage in the lifter is sucked by vacuum, and the sewage in the lifter is sucked into the vacuum sewage tank to be stored.

In the prior art, the invention patent with the patent application number of CN202010513351.8 discloses a mechanical vacuum liquid level control valve, which adopts the mechanical structure for cooperation, controls the opening or closing of a vacuum interface valve by completely depending on the water level in a lifter, does not need to depend on a circuit control system any more, reduces the electric energy loss, and can stably operate when the voltage is unstable. The mechanical structure adopts the magnetic attraction of magnetic beads to control the opening and closing of the vacuum interface valve in a mode of moving up and down, and most magnets are hard and are easily damaged when being impacted or collided, so that an internal magnetic conduction structure is influenced; the magnet is easily influenced by temperature and an external magnetic field, loses magnetism during heating, but regains magnetism during cooling, so that the opening and closing of the vacuum interface valve cannot be normally controlled when the temperature of the magnetic beads is higher in summer or when a strong and opposite magnetic field exists in the outside; simultaneously the come-up subassembly in this equipment is owing to be in the sewage, and some impurity (all contain moisture in waste paper, the abandonment plastic bag) sputter adhesion at the floater upside after sewage whereabouts reaches the riser, increases the floater dead weight, leads to the buoyancy weakened of come-up subassembly, makes the sliding tube can't drive magnet and moves to appointed high attracting the magnetic bead on, and the practicality is relatively poor.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a vacuum control valve device and a suction method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a vacuum control valve equipment, is including installing the mount pad on the lifting mechanism, be connected with the pipe on the mount pad, the one end that the mount pad was kept away from to the pipe is connected with the valve body, working hole, negative pressure hole and evacuation hole have been seted up on the valve body, communicate each other through connecting the chamber between working hole, negative pressure hole and the evacuation hole, it is provided with the piston piece to connect the intracavity activity, be provided with the drive assembly who is used for driving the piston piece displacement in the valve body, still be provided with the restriction subassembly that is used for restricting the piston piece displacement in the valve body, it is provided with the movable rod to slide in the pipe, set up on the mount pad with movable rod matched with through-hole, the bottom of movable rod is provided with the kicking block, be provided with on the movable rod and be used for driving kicking block pivoted rotating assembly.

Preferably, both sides of the piston block are provided with sliders, a sliding groove matched with the sliders is formed in the valve body, a first elastic element is arranged between the inner wall of the sliding groove and the sliders, sealing gaskets are arranged at the negative pressure hole and the emptying hole, and the piston block is movably abutted to the sealing gaskets.

Preferably, drive assembly is including rotating the dead lever that sets up in the valve body, it is connected with the shell to rotate on the dead lever, the both sides of shell sliding connection respectively have first even board and second even board, first even board rotates with the piston piece and links to each other, the second is even the board and is connected with the push pedal, push pedal sliding connection is on the valve body, the push pedal offsets with the movable rod activity.

Preferably, the upper side and the lower side of the piston block are also connected with a partition plate, and the valve body is provided with a movable groove matched with the partition plate.

Preferably, rotating assembly is including seting up the recess on the movable rod, be provided with the rack board in the recess, rack board outside meshing is connected with movable gear, be provided with the axis of rotation between movable gear and the through-hole, the axis of rotation outside is provided with first worm, still rotates on the movable rod and is provided with the dwang, it is provided with the first worm wheel of being connected with first worm meshing to slide on the dwang, be provided with the mounting panel in the axis of rotation, first worm and first worm wheel all rotate through the bearing and set up on the mounting panel, the one end that first worm wheel was kept away from to the dwang is provided with the second worm, the meshing is connected with the second worm wheel in the second worm outside, it is provided with the connecting rod that links firmly with the second worm wheel to rotate on the movable rod, the one end that the second worm wheel was kept away from to the connecting rod passes the movable rod and links to each other with the kicking block.

Preferably, a guide strip is arranged on the first worm wheel, and a guide groove matched with the guide strip is formed in the rotating rod.

Preferably, the movable rod comprises a first piston arranged in the guide pipe in a sliding mode and a rod body fixedly connected with the first piston, the first piston is movably abutted to the push plate, an air outlet valve is arranged on the first piston and communicated with an air pipe, one end, far away from the first piston, of the air pipe penetrates through the rod body and is connected with a pneumatic plate, the pneumatic plate is fixedly arranged on the rod body, an air cavity communicated with the air pipe is formed in the pneumatic plate, and an air hole communicated with the air cavity is formed in the outer side of the pneumatic plate.

Preferably, the restriction subassembly is including seting up the restriction groove on the valve body, sliding connection has the second piston in the restriction groove, be provided with second elastic element between the inner wall in second piston and restriction groove, one side that the second piston deviates from second elastic element is provided with the inserted bar, seted up on the piston piece with inserted bar matched with restriction hole, be provided with the inclined plane on the inserted bar, the restriction subassembly is still including setting up the gasbag in the pipe, the gasbag passes through the air duct and communicates each other with the restriction groove, first piston offsets with the gasbag activity.

Preferably, a plurality of threaded holes are formed in the mounting base, and a bolt is connected to each threaded hole in an internal thread mode.

The invention also discloses a suction method of the vacuum control valve device, which comprises the following steps:

s1: when the valve is used, the mounting seat is fixed on the lifter through the bolt, the floating block is arranged in the lifter, the working hole of the valve body is connected with the vacuum interface valve, the negative pressure hole is externally connected with a vacuum source, and the emptying hole is communicated with the external atmosphere;

s2: when the waste sewage in the lifter is at a low liquid level, the piston block moves upwards under the suction action of the negative pressure hole on the upper side, the piston block blocks the negative pressure hole, the working hole is communicated with the emptying hole, and the vacuum interface valve is closed;

s3: along with the waste sewage flows into the lifter under the action of gravity, when the liquid level in the lifter gradually rises, the floating block moves up under the action of self buoyancy, the floating block drives the movable rod to move up in the guide pipe, the movable rod drives the driving assembly to work, so that the piston block blocks the emptying hole on the lower side, the limiting assembly limits the piston block at the moment, the working hole is communicated with the negative pressure hole, the vacuum interface valve is opened, and the sewage in the lifter is sucked to the vacuum sewage tank.

Compared with the prior art, the invention provides vacuum control valve equipment and a suction method, and the vacuum control valve equipment and the suction method have the following beneficial effects:

1. according to the vacuum control valve device and the suction method, the opening and closing of the valve body are controlled by depending on the water level in the lifter, the opening and closing of the valve body can be stably and continuously controlled without depending on a circuit control system and a magnetic attraction mode, the stability is high, and the practicability is high.

2. According to the vacuum control valve device and the suction method, the buoyancy of the floating block is larger than the sum of the elastic force of the first elastic element and the suction force of the negative pressure hole to the piston block, the second connecting plate moves upwards under stress, the second connecting plate drives the piston block, the other side of which is connected with the first connecting plate, to move downwards through the rotation of the shell, the piston block blocks the emptying hole on the lower side, the piston block is limited by the inserting rod at the moment, and the working hole is communicated with the negative pressure hole, so that the opening of the vacuum interface valve is controlled.

3. According to the vacuum control valve device and the suction method, after the floating block moves downwards along with the water level to the initial position, the movable rod connected with the floating block extrudes the air bag, so that air in the air bag is discharged into the limiting groove through the air guide pipe, the air generates thrust on the second piston, the second piston extrudes the second elastic element and drives the insertion rod to contract into the limiting groove, the insertion rod does not limit and position the piston block any more, at the moment, the piston block moves upwards under the elastic support of the first elastic element and the suction effect of the negative pressure hole on the upper side, the piston block blocks the negative pressure hole, the working hole is communicated with the emptying hole, and therefore the vacuum interface valve is controlled to be closed.

4. The vacuum control valve device and the suction method drive the movable rod to move upwards in the guide pipe through the floating block, so that a rack plate on the movable rod is meshed with a moving gear at a through hole, the moving gear drives the rotating shaft to rotate, the rotating shaft drives a first worm to be meshed with a first worm gear on the rotating rod, the first worm gear drives the rotating rod to be meshed with a second worm outside the rotating rod, the second worm is meshed with a second worm gear on the connecting rod, the floating block rotates relative to the movable rod, impurities adhered to the floating block drop in sewage along with the rotation of the floating block and are separated from the floating block, and the phenomenon that the gravity of the floating block is increased on the upper side of the floating block by the impurities is avoided, and the normal floating height of the floating block is influenced.

5. According to the vacuum control valve equipment and the suction method, the movable rod moves upwards to extrude air in the guide pipe by the first piston, the extruded air enters the pneumatic plate through the air outlet valve and the air pipe, the air can blow floating objects falling in water on the floating block, impurities are far away from the floating block, and the phenomenon that the floating impurities are adhered to the floating block again or are accumulated near the floating block, so that the impurities near the floating block are splashed to the floating block again when waste water in the drainage pipeline falls into the lifter again is avoided.

Drawings

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

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

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;

FIG. 4 is a schematic illustration of the piston block of the present invention;

FIG. 5 is a schematic cross-sectional view of the mounting base of the present invention;

FIG. 6 is an enlarged view of the portion B of FIG. 5 according to the present invention;

fig. 7 is an external structural view of a rotating lever of the present invention;

FIG. 8 is a schematic view of the rotating rod and the first worm gear of the present invention;

FIG. 9 is a schematic view of the movable rod of the present invention moving upward;

FIG. 10 is a schematic view of the structure of the pneumatic plate and the float ball of the present invention;

fig. 11 is a schematic structural diagram of the mounting seat of the present invention.

In the figure: 1. a mounting base; 101. a through hole; 2. a conduit; 3. a valve body; 301. a working hole; 302. a negative pressure hole; 303. a drain hole; 304. a chute; 3041. a first elastic element; 305. a movable groove; 4. a piston block; 401. a slider; 402. a partition plate; 403. a limiting aperture; 5. a movable rod; 501. a first piston; 502. a rod body; 6. floating blocks; 7. a fixing rod; 701. a housing; 702. a first connecting plate; 703. a second connecting plate; 704. pushing the plate; 8. a limiting groove; 801. a second piston; 802. a second elastic element; 803. inserting a rod; 9. a groove; 901. a rack plate; 10. a moving gear; 11. a rotating shaft; 111. a first worm; 12. rotating the rod; 121. a first worm gear; 1211. a guide strip; 122. a second worm; 123. a second worm gear; 124. a guide groove; 13. mounting a plate; 14. a connecting rod; 15. a pneumatic plate; 151. air holes; 16. an air bag; 17. a gasket; 18. a threaded hole; 181. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 9, a vacuum control valve device, including installing mount pad 1 on the riser, be connected with pipe 2 on mount pad 1, the one end that pipe 2 kept away from mount pad 1 is connected with valve body 3, working hole 301 has been seted up on the valve body 3, negative pressure hole 302 and evacuation hole 303, working hole 301, communicate each other through connecting the chamber between negative pressure hole 302 and the evacuation hole 303, the activity is provided with piston block 4 in the connecting chamber, be provided with the drive assembly who is used for driving piston block 4 displacement in the valve body 3, still be provided with the restriction assembly who is used for restricting piston block 4 displacement in the valve body 3, it is provided with movable rod 5 to slide in the pipe 2, set up through-hole 101 with movable rod 5 matched with on the mount pad 1, the bottom of movable rod 5 is provided with floating block 6, be provided with the rotating assembly who is used for driving floating block 6 pivoted on the movable rod 5.

Specifically, when the mounting seat 1 is fixed on a lifter during use, the floating block 6 is arranged in the lifter, the working hole 301 of the valve body 3 is connected with the vacuum interface valve, the negative pressure hole 302 is externally connected with a vacuum source, the emptying hole 303 is communicated with the outside atmosphere, when the waste water in the lifter is at a low liquid level, the piston block 4 moves upwards under the suction force of the negative pressure hole 302 at the upper side, the piston block 4 blocks the negative pressure hole 302, the working hole 301 is communicated with the emptying hole 303, the vacuum interface valve is closed, the waste water flows into the lifter under the action of gravity, when the liquid level in the lifter gradually rises, the floating block 6 moves upwards under the action of self buoyancy, the floating block 6 drives the movable rod 5 to move upwards in the guide pipe 2, in the process, the rotating assembly on the movable rod 5 drives the floating block 6 to rotate, so that sundries adhered to the upper side of the floating block 6 fall into sewage and are separated from the floating block 6 in the overturning process, finally, the movable rod 5 drives the driving assembly to act, the driving assembly drives the piston block 4 to move downwards, the piston block 4 blocks the emptying hole 303 at the lower side, the working hole 301 and the negative pressure hole 302 are communicated, the vacuum interface valve is opened, and sewage in the lifter is sucked to a vacuum sewage tank.

Example 2:

referring to fig. 2 and 3, a vacuum control valve apparatus is similar to that of embodiment 1, further, sliding blocks 401 are disposed on two sides of a piston block 4, a sliding groove 304 matched with the sliding block 401 is disposed on a valve body 3, a first elastic element 3041 is disposed between an inner wall of the sliding groove 304 and the sliding block 401, a sealing gasket 17 is disposed at a negative pressure hole 302 and a drain hole 303, and the piston block 4 is movably abutted to the sealing gasket 17.

Specifically, when the piston block 4 moves upwards to block the negative pressure hole 302 or moves downwards to block the emptying hole 303, the sealing gasket 17 can improve the sealing effect of the valve body 3; the piston block 4 moves upward under the elastic force of the first elastic element 3041 in cooperation with the suction force of the upper negative pressure hole 302, so that the piston block 4 blocks the negative pressure hole 302, the working hole 301 and the emptying hole 303 are communicated, and the vacuum interface valve is closed.

Example 3:

referring to fig. 1, 2 and 9, a vacuum control valve device is the same as that in embodiment 1, and further, the driving assembly includes a fixing rod 7 rotatably disposed in the valve body 3, the fixing rod 7 is rotatably connected to a housing 701, two sides of the housing 701 are respectively slidably connected to a first connecting plate 702 and a second connecting plate 703, the first connecting plate 702 is rotatably connected to the piston block 4, the second connecting plate 703 is connected to a push plate 704, the push plate 704 is slidably connected to the valve body 3, and the push plate 704 is movably abutted to the movable rod 5.

Specifically, the movable rod 5 moves upwards to push the second connecting plate 703 to move upwards, the second connecting plate 703 drives the piston block 4 connected with the first connecting plate 702 at the other side to move downwards through the rotation of the shell 701, the piston block 4 blocks the evacuation hole 303 at the lower side, the working hole 301 and the negative pressure hole 302 are communicated, the vacuum interface valve is opened, and the sewage in the lifter is sucked to the vacuum sewage tank.

Example 4:

referring to fig. 2 and 4, a vacuum control valve apparatus is similar to embodiment 3, and further, a partition plate 402 is connected to the upper and lower sides of the piston block 4, and a movable groove 305 matching with the partition plate 402 is formed in the valve body 3.

Specifically, when the piston block 4 moves up or down, the working hole 301 is only communicated with the negative pressure hole 302 or the emptying hole 303, so that the air tightness of the valve body 3 is ensured.

Example 5:

referring to fig. 5, 6, 7, 8, 9 and 11, a vacuum control valve device is the same as in embodiment 3, further, the rotating assembly includes a groove 9 formed in the movable rod 5, a rack plate 901 is disposed in the groove 9, a moving gear 10 is engaged with the outer side of the rack plate 901, a rotating shaft 11 is disposed between the moving gear 10 and the through hole 101, a first worm 111 is disposed on the outer side of the rotating shaft 11, a rotating rod 12 is further rotatably disposed on the movable rod 5, a first worm wheel 121 engaged with the first worm 111 is slidably disposed on the rotating rod 12, a mounting plate 13 is disposed on the rotating shaft 11, the first worm 111 and the first worm wheel 121 are both rotatably disposed on the mounting plate 13 through a bearing, a second worm 122 is disposed at an end of the rotating rod 12 away from the first worm wheel 121, a second worm wheel 123 is engaged with the outer side of the second worm 122, a connecting rod 14 fixedly connected to the second worm wheel 123 is rotatably disposed on the movable rod 5, and an end of the connecting rod 14 away from the second worm wheel 123 passes through the movable rod 5 and is connected to the floating block 6.

Further, the first worm wheel 121 is provided with a guide strip 1211, and the rotating lever 12 is provided with a guide groove 124 engaged with the guide strip 1211.

Specifically, when the liquid level in the lifter gradually rises, the floating block 6 moves upwards under the action of the buoyancy of the floating block 6, the floating block 6 drives the movable rod 5 to move upwards in the guide pipe 2, in the process, the rack plate 901 on the movable rod 5 is meshed with the movable gear 10 at the through hole 101, the movable gear 10 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the first worm 111 to be meshed with the first worm wheel 121 on the rotating rod 12, the first worm wheel 121 drives the rotating rod 12 to be meshed with the second worm 122 outside the rotating rod 12, and the second worm 122 is meshed with the second worm wheel 123 on the connecting rod 14, so that the floating block 6 rotates relative to the movable rod 5, impurities adhered to the floating block 6 fall into sewage along with the rotation of the floating block 6 and are separated from the floating block 6, and the phenomenon that the gravity of the floating block 6 is increased on the upper side of the floating block 6 to influence the normal floating height of the floating block 6 due to the accumulation of the impurities.

Example 6:

referring to fig. 5, fig. 6 and fig. 10, a vacuum control valve device, the same as embodiment 5, further, the movable rod 5 includes a first piston 501 slidably disposed in the guiding tube 2 and a rod body 502 fixedly connected to the first piston 501, the first piston 501 movably abuts against the push plate 704, an air outlet valve is disposed on the first piston 501, the air outlet valve is communicated with an air pipe, one end of the air pipe, which is far away from the first piston 501, penetrates through the rod body 502 and is connected to the pneumatic plate 15, the pneumatic plate 15 is fixedly disposed on the rod body 502, an air cavity communicated with the air pipe is disposed in the pneumatic plate 15, and an air hole 151 communicated with the air cavity is disposed on the outer side of the pneumatic plate 15.

Specifically, the movable rod 5 moves upwards in the conduit 2, the first piston 501 of the movable rod 5 extrudes air in the conduit 2, the extruded air enters the pneumatic plate 15 through the air outlet valve and the air pipe, and the air blows floating objects falling in water on the floating block 6, so that the impurities are far away from the floating block 6, the floating impurities are prevented from being re-adhered to the floating block 6 or being accumulated near the floating block 6, and the floating impurities near the floating block 6 are re-sputtered on the floating block 6 when waste water in the drainage pipeline falls into the lifter again.

Example 7:

referring to fig. 2, 3 and 6, a vacuum control valve apparatus is the same as that in embodiment 6, further, the limiting assembly includes a limiting groove 8 formed in the valve body 3, a second piston 801 slidably connected in the limiting groove 8, a second elastic element 802 is disposed between the second piston 801 and an inner wall of the limiting groove 8, an insertion rod 803 is disposed on a side of the second piston 801 away from the second elastic element 802, a limiting hole 403 matched with the insertion rod 803 is formed in the piston block 4, an inclined surface is disposed on the insertion rod 803, the limiting assembly further includes an air bag 16 disposed in the conduit 2, the air bag 16 is communicated with the limiting groove 8 through an air duct, and the first piston 501 movably abuts against the air bag 16.

Specifically, when the movable rod 5 moves to the upper side of the conduit 2, the movable rod 5 acts on the push plate 704, the buoyancy of the floating block 6 is greater than the sum of the elastic force of the first elastic element 3041 and the suction force of the negative pressure hole 302 on the piston block 4, the second connecting plate 703 is forced to move upwards, the second connecting plate 703 drives the piston block 4 connected with the first connecting plate 702 at the other side to move downwards through the rotation of the housing 701, the piston block 4 blocks the emptying hole 303 at the lower side, and the piston block 4 is limited by the insertion rod 803 at this time, the working hole 301 is communicated with the negative pressure hole 302, the vacuum interface valve is opened, the sewage in the lifter is sucked to the vacuum sewage tank, when the liquid level in the lifter gradually drops, the movable rod 5 moves downwards along with the floating block 6 and does not act on the push plate 704 any more, but the piston block 4 cannot move upwards due to the limitation by the insertion rod 803 at this time, when the water level drops to a certain degree, the floating block 6 moves down to the initial position, the movable rod 5 connected with the floating block 6 extrudes the air bag 16, so that the air in the air bag 16 is discharged into the limiting groove 8 through the air duct, the air generates thrust on the second piston 801, the second piston 801 extrudes the second elastic element 802 and drives the insertion rod 803 to contract into the limiting groove 8, the insertion rod 803 does not limit and position the piston block 4 any more, at this time, the piston block 4 moves up under the elastic support of the first elastic element 3041 and the suction of the upper negative pressure hole 302, the piston block 4 blocks the negative pressure hole 302, the working hole 301 is communicated with the emptying hole 303, and the vacuum interface valve is closed.

Example 8:

referring to fig. 1, 2, 3, 4, 5, 6 and 9, a vacuum control valve apparatus is similar to that of embodiment 6, and further, a plurality of threaded holes 18 are formed in the mounting base 1, and a bolt 181 is screwed into each threaded hole 18.

Specifically, on will mount pad fixing base lifting mechanism 1 through bolt 181, simple structure is convenient for install and dismantle mount pad 1.

The working principle is as follows: s1: when the device is used, the mounting seat 1 is fixed on a lifter through a bolt 181, the floating block 6 is arranged in the lifter, the working hole 301 of the valve body 3 is connected with the vacuum interface valve, the negative pressure hole 302 is externally connected with a vacuum source, the emptying hole 303 is communicated with the external atmosphere, when the waste water in the lifter is at a low liquid level, the piston block 4 moves upwards under the elastic support of the first elastic element 3041 and the suction effect of the negative pressure hole 302 at the upper side, the piston block 4 blocks the negative pressure hole 302, the working hole 301 is communicated with the emptying hole 303, and the vacuum interface valve is closed;

s2: when the liquid level in the lifter gradually rises, the floating block 6 moves up under the action of the buoyancy of the floating block 6, the floating block 6 drives the movable rod 5 to move up in the guide pipe 2, in the process, the rack plate 901 on the movable rod 5 is meshed with the movable gear 10 at the through hole 101, the movable gear 10 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the first worm 111 to be meshed with the first worm wheel 121 on the rotating rod 12, the first worm wheel 121 drives the rotating rod 12 to be meshed with the second worm 122 on the outer side of the rotating rod 12, the second worm 122 is meshed with the second worm wheel 123 on the connecting rod 14, the floating block 6 rotates relative to the movable rod 5, and impurities adhered to the floating block 6 fall into the sewage along with the rotation of the floating block 6 and are separated from the floating block 6;

s3: the movable rod 5 continues to move upwards, the first piston 501 of the movable rod 5 extrudes air in the guide pipe 2, the extruded air enters the pneumatic plate 15 through the air outlet valve and the air pipe, and the air blows floating objects falling in water on the floating block 6 to enable sundries to be far away from the floating block 6;

s4: when the movable rod 5 moves to the upper side of the conduit 2, the movable rod 5 acts on the push plate 704, the buoyancy of the floating block 6 is larger than the sum of the elasticity of the first elastic element 3041 and the suction force of the negative pressure hole 302 to the piston block 4, the second connecting plate 703 is forced to move upwards, the second connecting plate 703 drives the piston block 4, the other side of which is connected with the first connecting plate 702, to move downwards through the rotation of the shell 701, the piston block 4 blocks the emptying hole 303 at the lower side, and the piston block 4 is limited by the inserting rod 803 at the moment, the working hole 301 is communicated with the negative pressure hole 302, the vacuum interface valve is opened, and the sewage in the lifter is sucked to the vacuum sewage tank;

s5: when sewage in the lifter is sucked to a vacuum sewage tank, the liquid level in the lifter gradually decreases, the movable rod 5 moves down along with the floating block 6 and does not apply an action on the push plate 704, but the piston block 4 cannot reset and move up due to the limit of the inserted rod 803 at the moment, so that the vacuum interface valve continuously works, when the water level decreases to a certain degree and the floating block 6 moves down to an initial position, the movable rod 5 connected with the floating block 6 extrudes the air bag 16, so that air in the air bag 16 is discharged into the limiting groove 8 through the air duct, the air generates thrust on the second piston 801, the second piston 801 extrudes the second elastic element 802 and drives the inserted rod 803 to contract into the limiting groove 8, so that the inserted rod 803 does not restrict and position the piston block 4, at the moment, the piston block 4 moves up under the elastic support of the first elastic element 3041 and the suction force of the negative pressure hole 302 on the upper side, the piston block 4 blocks the negative pressure hole 302, the working hole 301 is communicated with the evacuation hole 303, and the vacuum interface valve is closed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a vacuum control valve equipment, is including installing mount pad (1) on the lifting mechanism, its characterized in that, be connected with pipe (2) on mount pad (1), the one end that mount pad (1) was kept away from in pipe (2) is connected with valve body (3), working hole (301), negative pressure hole (302) and evacuation hole (303) have been seted up on valve body (3), communicate each other through connecting the chamber between working hole (301), negative pressure hole (302) and evacuation hole (303), it is provided with piston block (4) to connect the intracavity activity, be provided with the drive assembly who is used for driving piston block (4) displacement in valve body (3), still be provided with the restriction subassembly that is used for restricting piston block (4) displacement in valve body (3), it is provided with movable rod (5) to slide in pipe (2), set up through-hole (101) with movable rod (5) matched with on mount pad (1), the bottom of movable rod (5) is provided with floating block (6), be provided with on movable rod (5) and be used for driving floating block (6) pivoted rotation assembly.

2. The vacuum control valve device according to claim 1, wherein sliding blocks (401) are arranged on two sides of the piston block (4), a sliding groove (304) matched with the sliding blocks (401) is formed in the valve body (3), a first elastic element (3041) is arranged between the inner wall of the sliding groove (304) and the sliding blocks (401), sealing gaskets (17) are arranged at the negative pressure hole (302) and the emptying hole (303), and the piston block (4) is movably abutted to the sealing gaskets (17).

3. The vacuum control valve device according to claim 1, wherein the driving assembly comprises a fixed rod (7) rotatably disposed in the valve body (3), the fixed rod (7) is rotatably connected with a housing (701), two sides of the housing (701) are respectively slidably connected with a first connecting plate (702) and a second connecting plate (703), the first connecting plate (702) is rotatably connected with the piston block (4), the second connecting plate (703) is connected with a push plate (704), the push plate (704) is slidably connected with the valve body (3), and the push plate (704) is movably abutted against the movable rod (5).

4. The vacuum control valve device according to claim 3, wherein the upper and lower sides of the piston block (4) are further connected with a partition plate (402), and the valve body (3) is provided with a movable groove (305) matched with the partition plate (402).

5. The vacuum control valve device according to claim 3, wherein the rotating assembly comprises a groove (9) formed in the movable rod (5), a rack plate (901) is arranged in the groove (9), a moving gear (10) is meshed and connected with the outer side of the rack plate (901), a rotating shaft (11) is arranged between the moving gear (10) and the through hole (101), a first worm (111) is arranged on the outer side of the rotating shaft (11), a rotating rod (12) is further arranged on the movable rod (5) in a rotating mode, a first worm wheel (121) meshed and connected with the first worm (111) is arranged on the rotating rod (12) in a sliding mode, a mounting plate (13) is arranged on the rotating shaft (11), the first worm (111) and the first worm wheel (121) are both arranged on the mounting plate (13) through bearing rotation, a second worm (122) is arranged at one end, far away from the first worm wheel (121), of the rotating rod (12) is meshed and connected with a second worm wheel (123), a connecting rod (14) arranged on the movable rod (5) in a rotating mode, and the connecting rod (14) penetrates through the floating block (6) and is connected with the movable rod (6).

6. The vacuum control valve apparatus according to claim 5, wherein the first worm wheel (121) is provided with a guide strip (1211), and the rotating lever (12) is provided with a guide groove (124) engaged with the guide strip (1211).

7. The vacuum control valve device according to claim 5, wherein the movable rod (5) comprises a first piston (501) slidably disposed in the guide tube (2) and a rod body (502) fixedly connected to the first piston (501), the first piston (501) movably abuts against the push plate (704), an air outlet valve is disposed on the first piston (501), the air outlet valve is communicated with an air pipe, one end of the air pipe, which is far away from the first piston (501), penetrates through the rod body (502) and is connected to the pneumatic plate (15), the pneumatic plate (15) is fixedly disposed on the rod body (502), an air cavity communicated with the air pipe is disposed in the pneumatic plate (15), and an air hole (151) communicated with the air cavity is disposed on the outer side of the pneumatic plate (15).

8. The vacuum control valve device according to claim 7, wherein the limiting assembly comprises a limiting groove (8) formed in the valve body (3), a second piston (801) is connected in the limiting groove (8) in a sliding mode, a second elastic element (802) is arranged between the second piston (801) and the inner wall of the limiting groove (8), an inserting rod (803) is arranged on one side, away from the second elastic element (802), of the second piston (801), a limiting hole (403) matched with the inserting rod (803) is formed in the piston block (4), an inclined surface is arranged on the inserting rod (803), the limiting assembly further comprises an air bag (16) arranged in the guide pipe (2), the air bag (16) is communicated with the limiting groove (8) through an air guide pipe, and the first piston (501) is movably abutted to the air bag (16).

9. Vacuum control valve device according to claim 1, characterized in that the mounting seat (1) is provided with a plurality of threaded holes (18), and each threaded hole (18) is internally threaded with a bolt (181).

10. A method of pumping a vacuum control valve apparatus as claimed in any one of claims 1 to 9, comprising the steps of:

s1: when the valve is used, the mounting seat (1) is fixed on a lifter through a bolt (181), the floating block (6) is arranged in the lifter, the working hole (301) of the valve body (3) is connected with a vacuum interface valve, the negative pressure hole (302) is externally connected with a vacuum source, and the emptying hole (303) is communicated with the external atmosphere;

s2: when the waste water in the lifter is at a low liquid level, the piston block (4) moves upwards under the action of the suction force of the negative pressure hole (302) on the upper side, the piston block (4) blocks the negative pressure hole (302), the working hole (301) is communicated with the emptying hole (303), and the vacuum interface valve is closed;

s3: along with sewage flows into the lifting mechanism under the action of gravity, when the liquid level in the lifting mechanism rises gradually, the floating block (6) moves up under the action of self buoyancy, the floating block (6) drives the movable rod (5) to move up in the guide pipe (2), the movable rod (6) drives the driving assembly to work, so that the piston block (4) blocks the emptying hole (303) on the lower side, the limiting assembly limits the piston block (4) at the moment, the working hole (301) and the negative pressure hole (302) are communicated, the vacuum interface valve is opened, and the sewage in the lifting mechanism is sucked to the vacuum sewage tank.