CN206070645U - Negative pressure inhibition device - Google Patents

Abstract

The utility model discloses a kind of negative pressure inhibition device is mainly by housing, ball float, piston seat, float, valve seat, top cover, instruction device, intelligent controller and binding post composition, lower housing portion is welded adpting flange, case top is provided with top cover, sealing dividing plate is provided with enclosure interior, electrical equipment dividing plate and waterproof bulkhead, adpting flange, sealing dividing plate, the inside of housing is separated into hydroecium by electrical equipment dividing plate and waterproof bulkhead, three cell structures of air chamber and electric apparatus room, the valve seat of connection air chamber is equiped with the sealing dividing plate inside hydroecium, it is supporting in valve seat to be equiped with spacing valve body, magnetic-inductive device is connected with spacing valve body top surface.The beneficial effects of the utility model are, this utility model has the advantages that good seal performance, sensitivity are high and safe effect is good, and are provided with intelligent controller and instruction device realizes instruction, warning function to work or malfunction, improve security reliability.

Description

Negative pressure inhibition device

Technical field

This utility model is related to secondary water-supply technical field, specifically a kind of for setting without negative pressure water distribution system flushing Standby negative pressure inhibition device.

Background technology

Negative pressure-free pipe network Pressure-superposed water supply equipment is convenient due to having the advantages that energy-conservation, province ground, health and management service, at present All kinds of civilian secondary water-supply fields with industrial building are widely used to, and progressively occupy the leading of secondary water-supply equipment Status.The protection negative pressure eliminating device of negative pressure inhibition device or vacuum suppresser etc. will be indispensable in negative pressure-free pipe network Pressure-superposed water supply equipment One of scarce key core part, but the protection negative pressure eliminating device used on market is present that simple structure, reliability are low, be active in one's movements Property difference and there are problems that, affect use.

Utility model content

The purpose of this utility model be provide a kind of good airproof performance, be active in one's movements, safe, defencive function it is complete Negative pressure inhibition device.

This utility model solves the technical scheme adopted by its technical problem：Negative pressure inhibition device mainly by housing, ball float, Piston seat, float, valve seat, top cover, instruction device, intelligent controller and binding post composition, the housing are that cylinder tube-type is vertical Structure, bottom are welded adpting flange, and case top is provided with top cover, is connected by fixed screw between top cover and housing, Enclosure interior is provided with sealing dividing plate, and the enclosure interior on sealing dividing plate is additionally provided with electrical equipment dividing plate, adpting flange, sealing dividing plate Be parallel to each other and electrical equipment dividing plate between and be provided separately, and assemble with case weld respectively, sealing dividing plate and electrical equipment dividing plate it Between be also vertically provided between waterproof bulkhead, and electrical equipment dividing plate and waterproof bulkhead to connect preparation, that is, by the top of waterproof bulkhead Portion is welded to connect with electrical equipment divider upright, and electrical equipment dividing plate is connected in the weld preparation perforate being connected with waterproof bulkhead It is logical, vertical welding connection between the bottom of the waterproof bulkhead and sealing dividing plate, the both sides of waterproof bulkhead are contacted with the housing, And be welded to connect, so, the inside of housing is separated into hydroecium, gas by adpting flange, sealing dividing plate, electrical equipment dividing plate and waterproof bulkhead Form hydroecium between room and three cell structures of electric apparatus room, and adpting flange and sealing dividing plate, waterproof bulkhead and sealing dividing plate and The closed portion formed between electrical equipment dividing plate is air chamber, the interconnecting part that formed between waterproof bulkhead and sealing dividing plate and electrical equipment dividing plate Point, and electrical equipment dividing plate and top cover between the space that constitutes be electric apparatus room, open up at the center of the adpting flange of lower housing portion There is centre bore to connect with hydroecium, supporting in centre bore to be equiped with piston seat, piston seat is located at the centre bore bottom of adpting flange, Supporting on piston seat to be equiped with piston packing, piston seat can be carried out close by piston packing and the centre bore of adpting flange Envelope, the also referred to as primary seal of hydroecium, are provided with ball float in bottom centre's contact of piston seat, and the ball float and piston seat are filled It is located at the inside of the protection cylinder of supporting setting, cylinder barrel of the protection cylinder for upper end open, in side wall and the bottom of protection cylinder Permeable through hole is offered, the upper end of protection cylinder is welded in the bottom of adpting flange, ball float and piston seat can be made in protection cylinder Upper and lower motion, when moving on piston seat is with ball float, the centre bore with adpting flange contacts by piston packing, and seal, hydroecium Close, form the primary seal of hydroecium, when piston seat is moved down with ball float, hydroecium is connected by the centre bore of adpting flange, water Chamber opening, the primary seal of hydroecium are eliminated；Inside hydroecium sealing dividing plate on be equiped with connection air chamber valve seat, valve seat with it is close Part is contacted with each other between packing plate by sealing gasket sealing, one end amplification air inlet chamber of valve seat is simultaneously female with valve in plenum interior Prepare, valve is female to be connected by screw thread and valve seat between, that is, valve seat tighten by valve mother be folded in seal on dividing plate, and Sealed by sealing gasket, the valve seat bottom inside hydroecium is connected with connecting rod by valve pin, and the other end of connecting rod passes through valve seat An overall structure is connected into the float, supporting in valve seat to be equiped with spacing valve body, spacing valve body is also by arranging Removable pin in valve seat is connected with connecting rod, and spacing valve body can make upper and lower motion with float drivening rod in valve seat, in limit Supporting on the valve body of position to be equiped with valve seals, valve seals will contact sealing when spacing valve body is moved upwards with valve seat, So as to hydroecium and air chamber are given sealed separation, the also referred to as secondary seal of hydroecium, connect in the top surface of spacing valve body seal valve seat Magnetic-inductive device is provided with, magnetic switch assemblies are housed on the sealing dividing plate in air chamber, the magnetic-inductive device will be opened with magnetic force Close component pairing, and can contact with each other with electrical signal of reaction, and magnetic-inductive device is when the induction zone of magnetic switch assemblies is close to Connect, disconnect when the induction zone of magnetic switch assemblies is left, when float drives spacing valve body to transport upwards in hydroecium by connecting rod When dynamic, spacing valve body will be closed by valve seals seal valve seat, hydroecium, form the secondary seal of hydroecium, now magnetic induction Device be located at air chamber in, and be close to magnetic switch assemblies induction zone with electrical signal of reaction connect, when float by connecting rod in hydroecium When driving spacing valve body to move downward, valve seat is opened, and air chamber is connected with hydroecium, and the secondary seal of hydroecium is eliminated, now magnetic induction Device is located in hydroecium, and leaves the induction zone of magnetic switch assemblies and disconnect；

Protective plate is additionally provided with above the central hole location of the adpting flange in hydroecium, in protective plate and adpting flange Heart hole and the piston seat being installed in centre bore are prepared, and the effect one for arranging protective plate is that current lead to when hydroecium is opened The centre bore of adpting flange is crossed into for preventing water impact float from producing interference, two is in order in piston during hydroecium Seat avoids the interference of the float in hydroecium during moving upwards, protective plate is fixed on the adpting flange of hydroecium.

Additionally, be additionally provided with sealing dividing plate cause adpting flange position below communicating pipe, that is, the one of communicating pipe End is connected, and is connected with air chamber with dividing plate is sealed, the other end of communicating pipe will through hydroecium cause adpting flange position below, And prolong Shen to the intercommunicating pore connection corresponding to the interface of the supporting installation of adpting flange institute, but do not connect with hydroecium communicating pipe, and And communicating pipe will get around float, connecting rod and protective plate in hydroecium, with adpting flange supporting installation interface corresponding to Intercommunicating pore is connected communicating pipe, the position of one end was equiped with communication seals circle, by communicating pipe when the communication seals circle is used to install With adpting flange supporting installation interface corresponding to intercommunicating pore carry out sealing and connect and externally mutually seepage, so guarantee Sealing connection when installing and when removing convenient dismounting effect；

Additionally, intelligent controller and instruction device are equiped with the electric apparatus room, and intelligent controller is installed in electricity On the electrical equipment dividing plate of device room, the sky that instruction device is installed on the housing of electric apparatus room and is constituted with housing positioned at the waterproof bulkhead Between it is internal, the instruction device will be connected with intelligent controller by the light-emitting diodes route of pipe line and be communicated, intelligent controller by Cable is connected with the binding post being installed on housing, and binding post is located on the housing of electric apparatus room, and is separated with instruction device, intelligently Controller will give distribution by binding post and externally communication, and intelligent controller also passes through electrical equipment dividing plate and the magnetic force by wire Switch module wiring connect, housing install instruction device position it is also supporting be equiped with label seat, label seat is mounted in outside housing Side, installs instruction device inside label seat through housing, and instruction device will first by intelligent controller collection, analysis and Judge the working condition of magnetic switch assemblies, magnetic switch assemblies " work ", " failure " are shown by label seat again then Or Alarm state.

Operation principle of the present utility model is, ball float will float with water level and drive piston seat to move upwards, and seal The centre bore and closing hydroecium of adpting flange, forms the primary seal of hydroecium, and now hydroecium is anhydrous, and the float in hydroecium will be in State is hanged under gravity, and float makes spacing valve body put in lowermost position in valve seat by connecting rod, the secondary seal of hydroecium is beaten Open, hydroecium is connected with air chamber, when primary seal failure causes percolating water to enter hydroecium by the centre bore of adpting flange, hydroecium Water level with percolating water is risen and floats, and drives spacing valve body to move upwards by connecting rod by interior float, in limit valve Body move upwards contact with valve seat, and when being sealed by valve seals, the secondary seal of hydroecium is formed, and is now installed in limit valve Magnetic-inductive device at the top of body will be close to the induction zone of magnetic switch assemblies and electrical signal of reaction is connected, and be sensed The signal of telecommunication will by wire transmission to intelligent controller, then by intelligent controller to receive the signal of telecommunication be analyzed, Process, and " work ", " failure " or Alarm are carried out to instruction device by light emitting diode circuit output by conclusion is processed Indicate, while intelligent controller is also by the signal of telecommunication of collection and process conclusion passes through cable and binding post is externally transmitted into control The heart；Water level decreasing below the adpting flange and when there is negative pressure, loss of buoyance is moved down by ball float, and piston seat is also moved down therewith, Hydroecium is connected by the centre bore of adpting flange, and hydroecium is opened, and primary seal is eliminated, and now, the percolating water of hydroecium is from connection method Blue centre bore flows out, hydroecium water level decreasing, and the float in hydroecium moved down with water level, and drive spacing valve body downward by connecting rod Motion, air chamber are opened, and hydroecium is connected with air chamber, and now air chamber is then by communicating pipe and the inert gas compressed energy-storage malleation for arranging Device or outside air system connectivity, are vacuum formed condition with destroy hydroecium and air chamber, so as to eliminate negative pressure impact.

The beneficial effects of the utility model are that this utility model has good seal performance, sensitivity height and safe effect good The advantages of, and it is provided with intelligent controller and instruction device realizes instruction, warning function to work or malfunction, improve Security reliability.

Description of the drawings

Accompanying drawing 1 is structural representation of the present utility model.

In figure, 1, protection cylinder, 2, ball float, 3, piston seat, 4, piston packing, 5, communication seals circle, 6, adpting flange, 7, Housing, 8, protective plate, 9, communicating pipe, 10, float, 11, label seat, 12, sealing dividing plate, 13, waterproof bulkhead, 14, instruction device, 15th, the light-emitting diodes route of pipe line, 16, wire, 17, electric apparatus room, 18, top cover, 19, intelligent controller, 20, magnetic switch assemblies, 21, Magnetic-inductive device, 22, cable, 23, electrical equipment dividing plate, 24, fixed screw, 25, binding post, 26, air chamber, 27, valve it is female, 28, spacing Valve body, 29, sealing gasket, 30, valve seals, 31, valve pin, 32, removable pin, 33, valve seat, 34, connecting rod, 35, hydroecium, 36, thoroughly Water through hole.

Specific embodiment

Below accompanying drawing 1 is described in detail below to negative pressure inhibition device of the present utility model.

As shown in Figure 1, negative pressure inhibition device of the present utility model is mainly by housing 7, ball float 2, piston seat 3, float 10, valve Seat 33, top cover 18, instruction device 14, intelligent controller 19 and binding post 25 are constituted, and the housing 7 is vertically tied for cylinder tube-type Structure, bottom are welded adpting flange 6, and top cover 18 is provided with the top of housing 7, are connected by fixed screw 24 between top cover 18 and housing 7 It is fixed, sealing dividing plate 12 is provided with inside housing 7, electrical equipment dividing plate 23 is additionally provided with inside the housing 7 on sealing dividing plate 12, even Acting flange 6, sealing dividing plate 12 and electrical equipment dividing plate 23 between be parallel to each other and be provided separately, and respectively with 7 assemble welding of housing, Between sealing dividing plate 12 and electrical equipment dividing plate 23, also vertical being provided between waterproof bulkhead 13, and electrical equipment dividing plate 23 and waterproof bulkhead 13 is Connection is prepared, that is, the top of waterproof bulkhead 13 is connected with 23 vertical welding of electrical equipment dividing plate, and by electrical equipment dividing plate 23 with The weld of the connection of waterproof bulkhead 13 is prepared perforate and is connected, and hangs down between the bottom of the waterproof bulkhead 13 and sealing dividing plate 12 Directly it is welded to connect, the both sides of waterproof bulkhead 13 are contacted with the housing 7, and be welded to connect, so, adpting flange 6, sealing dividing plate 12nd, the inside of housing 7 is separated into the three Room knot of hydroecium 35, air chamber 26 and electric apparatus room 17 for electrical equipment dividing plate 23 and waterproof bulkhead 13 Hydroecium 35, waterproof bulkhead 13 and sealing dividing plate 12 and electrical equipment dividing plate 23 are formed between structure, and adpting flange 6 and sealing dividing plate 12 Between the closed portion that formed be air chamber 26, the interconnecting part formed between waterproof bulkhead 13 and sealing dividing plate 12 and electrical equipment dividing plate 23 Point, and electrical equipment dividing plate 23 and top cover 18 between the space that constitutes be electric apparatus room 17, in the adpting flange 6 of 7 bottom of housing Center is offered centre bore and is connected with hydroecium 35, and supporting in centre bore to be equiped with piston seat 3, piston seat 3 is located at adpting flange 6 Centre bore bottom, supporting on piston seat 3 to be equiped with piston packing 4, piston seat 3 can pass through piston packing 4 and be connected The centre bore of flange 5 is sealed, also referred to as the primary seal of hydroecium 35, is provided with ball float 2 in bottom centre's contact of piston seat 3, And the ball float 2 and piston seat 3 are installed in the inside of the protection cylinder 1 of supporting setting, the protection cylinder 1 is upper end open Cylinder barrel, protection cylinder 1 side wall and bottom offer permeable through hole 36, the upper end of protection cylinder 1 is welded in adpting flange 6 Bottom, ball float 2 and piston seat 3 can make upper and lower motion in protection cylinder 1, when moving on piston seat 3 is with ball float 2, piston packing 4 will contact with the centre bore of adpting flange 6, and seal, hydroecium 35 is closed, and forms the primary seal of hydroecium 35, when piston seat 3 with When ball float 2 is moved down, hydroecium 35 is connected by the centre bore of adpting flange 6, and hydroecium 35 is opened, and the primary seal of hydroecium 35 is eliminated； The valve seat 33 of connection air chamber 26 is equiped with the sealing dividing plate 12 inside hydroecium 35, between valve seat 33 and sealing dividing plate 12 mutually Contact portion is sealed by sealing gasket 29, one end of valve seat 33 amplification air inlet chamber 26, and is prepared with valve female 27 inside air chamber 26, It is connected by screw thread between valve female 27 and valve seat 33, that is, valve seat 33 is tightened by valve mother 27 and is folded in sealing dividing plate 12 Above, and sealed by sealing gasket 29,33 bottom of valve seat inside hydroecium 35 is connected with connecting rod 34, connecting rod 34 by valve pin 31 The other end overall structure is connected into the float 10 through valve seat 33, it is supporting in valve seat 33 to be equiped with limit valve Body 28, spacing valve body 28 are also connected with connecting rod 34 by the removable pin 32 being arranged in valve seat 33, and spacing valve body 28 can be with floating Sub 10 drivening rods 34 make upper and lower motion in valve seat 33, supporting on spacing valve body 28 to be equiped with valve seals 30, valve body Sealing ring 30 will contact sealing with valve seat 33 when spacing valve body 28 is moved upwards, so as to hydroecium 35 is sealed with air chamber 26 Separate, also referred to as the secondary seal of hydroecium 35, magnetic-inductive device 21 is connected with the top surface of 28 seal valve seat 33 of spacing valve body, Magnetic switch assemblies 20 are housed on the sealing dividing plate 12 in air chamber 26, the magnetic-inductive device 21 will be matched somebody with somebody with magnetic switch assemblies 20 To, and can contact with each other with electrical signal of reaction, and magnetic-inductive device 21 connect when the induction zone of magnetic switch assemblies 20 is close to, Disconnect when the induction zone of magnetic switch assemblies 20 is left, when float 10 from connecting rod 34 drive in hydroecium 35 spacing valve body 28 to During upper motion, spacing valve body 28 will be closed by 30 seal valve seat 33 of valve seals, hydroecium 35, and form hydroecium 35 two grades are close Envelope, now magnetic-inductive device 21 be located in air chamber 26, and be close to 20 induction zone of magnetic switch assemblies and connected with electrical signal of reaction, when When float 10 drives spacing valve body 28 to move downward in the hydroecium 35 by connecting rod 34, valve seat 33 is opened, and air chamber 26 is connected with hydroecium 35 Logical, the secondary seal of hydroecium 35 is eliminated, and now magnetic-inductive device 21 is located in hydroecium 35, and leaves the sense of magnetic switch assemblies 20 Answer area and disconnect；

Protective plate 8, protective plate 8 and connection method are additionally provided with above the central hole location of the adpting flange 6 in hydroecium 35 Blue 6 centre bore and the piston seat 3 being installed in centre bore are prepared, and the effect one for arranging protective plate 8 is in hydroecium 35 During opening current by the centre bore of adpting flange 6 into dry for preventing water impact float 10 from producing during hydroecium 35 Disturb, two be in order to be moved in piston seat 3 upwards during avoid the interference of float 10 in hydroecium 35, protective plate 8 is fixed on On the adpting flange 6 of hydroecium 35.

Additionally, be additionally provided with sealing dividing plate 12 cause 6 position below of adpting flange communicating pipe 9, that is, communicating pipe 9 One end be connected with sealing dividing plate 12, and connect with air chamber 26, the other end of communicating pipe 9 will cause adpting flange through hydroecium 35 6 position below simultaneously prolong Shen to connecting with the intercommunicating pore corresponding to the interface of the supporting installation of the institute of adpting flange 6, but communicating pipe 9 and Hydroecium 35 is not connected, and communicating pipe 9 will get around float 10, connecting rod 34 and protective plate 8 in hydroecium 35, with adpting flange 6 Intercommunicating pore corresponding to the interface of supporting installation connect communicating pipe 9 one end position be equiped with communication seals circle 5, the company Logical sealing ring 5 be used for when installing by communicating pipe 9 and adpting flange 6 supporting installation interface corresponding to intercommunicating pore sealed Connect and external mutual seepage, the effect for sealing connection and conveniently dismantling when removing when this ensure that installation；

Additionally, being equiped with intelligent controller 19 and instruction device 14, and intelligent controller 19 in the electric apparatus room 17 It is installed on the electrical equipment dividing plate 23 of electric apparatus room 17, instruction device 14 is installed on the housing 7 of electric apparatus room 17 and is located at the waterproof The interior volume that dividing plate 13 is constituted with housing 7, the instruction device 14 will be by the light-emitting diodes route of pipe line 15 and intelligent controller 19 connections are communicated, and intelligent controller 19 is connected with the binding post 25 being installed on housing 7 by cable 22, and binding post 25 is located at On the housing 7 of electric apparatus room 17, and separate with instruction device 14, intelligent controller 19 will give distribution and externally by binding post 25 Communication, intelligent controller 19 is also connected with 20 wiring of the magnetic switch assemblies through electrical equipment dividing plate 23 by wire 16, in housing 7 The position of installation instruction device 14 is also supporting to be equiped with label seat 11, and label seat 11 is mounted in the outside of housing 7, exists through housing 7 Instruction device 14 is installed inside label seat 11, and instruction device 14 will be gathered, and analyze and be judged by intelligent controller 19 first Go out the working condition of magnetic switch assemblies 20, magnetic switch assemblies 20 " work ", " event are shown by label seat 11 again then Barrier " or Alarm state.

Operation principle of the present utility model is, ball float 2 will float with water level and drive piston seat 3 to move upwards, and close The centre bore and closing hydroecium 35 of envelope adpting flange 6, forms the primary seal of hydroecium 35, and now hydroecium 35 is anhydrous, in hydroecium 35 Float 10 will hang state under gravity, and float 10 makes spacing valve body 28 in valve seat 33 under most by connecting rod 34 Position, the secondary seal of hydroecium 35 are opened, and hydroecium 35 is connected with air chamber 26, causes percolating water in the primary seal failure of hydroecium 35 By the centre bore of adpting flange 6 enter hydroecium 35 when, the float 10 in hydroecium 35 by with percolating water water level rise and on It is floating, and drive spacing valve body 28 to move upwards by connecting rod 34, moved in spacing valve body 28 upwards contact with valve seat 33, and by valve When body sealing ring 30 is sealed, the secondary seal of hydroecium 35 is formed, the magnetic-inductive device 21 being now installed at the top of spacing valve body 28 By the induction zone for being close to magnetic switch assemblies 20, electrical signal of reaction is connected, and the signal of telecommunication for being sensed will pass through Wire 16 is transmitted to intelligent controller 19, then is analyzed, is processed by the signal of telecommunication of 19 pairs of receptions of intelligent controller, and will place Reason conclusion exports the instruction that " work ", " failure " or Alarm are carried out to instruction device 14 by the light-emitting diodes route of pipe line 15, together When intelligent controller 19 also by the signal of telecommunication of collection and process conclusion and pass through cable 22 and binding post 25 and externally transmit into control The heart；When water level decreasing of the adpting flange below 6 is with there is negative pressure, loss of buoyance is moved down by ball float 2, and piston seat 3 is also with Move, hydroecium 35 is connected by the centre bore of adpting flange 6, hydroecium 35 is opened, primary seal is eliminated, now, the seepage of hydroecium 35 Water is flowed out from the centre bore of adpting flange 6,35 water level decreasing of hydroecium, and the float 10 in hydroecium 35 moved down with water level, and by connecting Bar 34 drives spacing valve body 28 to move downward, and air chamber 26 is opened, and hydroecium 35 is connected with air chamber 26, and now air chamber 26 is then by connection Pipe 9 and the inert gas compressed energy-storage positive pressure devices or outside air system connectivity that arrange, to destroy hydroecium 35 and air chamber 26 Be vacuum formed condition, so as to eliminate negative pressure impact.

Claims (10)

1. a kind of negative pressure inhibition device, mainly by housing, ball float, piston seat, float, valve seat, top cover, instruction device, Based Intelligent Control Device and binding post composition, lower housing portion is welded adpting flange, and case top is provided with top cover, enclosure interior be provided with sealing dividing plate, Electrical equipment dividing plate and waterproof bulkhead, it is characterised in that adpting flange, sealing dividing plate, electrical equipment dividing plate and waterproof bulkhead are by housing Part is divided into three cell structures of hydroecium, air chamber and electric apparatus room, the center of the adpting flange of lower housing portion offer centre bore with Hydroecium is connected, supporting in centre bore to be equiped with piston seat, supporting on piston seat to be equiped with piston packing, in piston seat Bottom centre's contact is provided with ball float, and ball float and piston seat are installed in the inside of the protection cylinder of supporting setting, inside hydroecium The valve seat of connection air chamber is equiped with sealing dividing plate, the valve seat bottom inside hydroecium is connected with connecting rod by valve pin, connecting rod The other end is connected into an overall structure through valve seat and float, supporting in valve seat to be equiped with spacing valve body, spacing valve body It is connected with connecting rod by the removable pin being arranged in valve seat, spacing valve body can make upper and lower fortune with float drivening rod in valve seat It is dynamic, and it is supporting on spacing valve body be equiped with valve seals, and be connected with magnetic-inductive device in spacing valve body top surface, in gas Magnetic switch assemblies are housed on the sealing dividing plate of room, the pairing of the magnetic-inductive device and magnetic switch assemblies, and can be contacted with each other With electrical signal of reaction, it is additionally provided with the sealing dividing plate of air chamber and causes adpting flange position below communicating pipe, and in communicating pipe The one end for causing below adpting flange position is equiped with communication seals circle, is equiped with intelligent controller and refers in the electric apparatus room Showing device, instruction device are connected with intelligent controller by the light-emitting diodes route of pipe line and are communicated, intelligent controller by cable with The binding post connection being installed on housing, intelligent controller also pass through electrical equipment dividing plate and the magnetic switch assemblies wiring by wire Connection.

2. negative pressure inhibition device according to claim 1, it is characterised in that adpting flange, sealing dividing plate and electrical equipment dividing plate it Between be parallel to each other and be provided separately, and respectively with case weld assemble, electrical equipment dividing plate enclosure interior be located at sealing dividing plate on, Waterproof bulkhead will be vertically welded between sealing dividing plate and electrical equipment dividing plate, and electrical equipment dividing plate is matched somebody with somebody in the weld being connected with waterproof bulkhead Perforate processed is connected, and the both sides of waterproof bulkhead are contacted with the housing, and be welded to connect.

3. negative pressure inhibition device according to claim 2, it is characterised in that form water between adpting flange and sealing dividing plate Room, between waterproof bulkhead and sealing dividing plate and electrical equipment dividing plate, the closed portion that formed is air chamber, waterproof bulkhead and sealing dividing plate and The space constituted between the connected component formed between electrical equipment dividing plate and electrical equipment dividing plate and top cover is electric apparatus room.

4. negative pressure inhibition device according to claim 1, it is characterised in that cylinder barrel of the protection cylinder for upper end open, Protection cylinder side wall and bottom offer permeable through hole, the upper end of protection cylinder is welded in the bottom of adpting flange, ball float and Piston seat can make upper and lower motion in protection cylinder.

5. negative pressure inhibition device according to claim 1, it is characterised in that contact with each other between valve seat and sealing dividing plate part Sealed by sealing gasket, and air inlet chamber is amplified and in the female preparation of plenum interior and valve in one end of valve seat.

6. negative pressure inhibition device according to claim 5, it is characterised in that valve is female to coordinate company by screw thread and valve seat between Connect.

7. negative pressure inhibition device according to claim 1, it is characterised in that the central hole location of the adpting flange in the hydroecium Top be additionally provided with protective plate, the centre bore and the piston seat being installed in centre bore of protective plate and adpting flange are matched somebody with somebody System.

8. negative pressure inhibition device according to claim 7, it is characterised in that communicating pipe is not connected with hydroecium, and communicating pipe Float, connecting rod and protective plate will be got around in hydroecium.

9. negative pressure inhibition device according to claim 1, it is characterised in that intelligent controller be installed in the electrical equipment of electric apparatus room every On plate, the interior volume that instruction device is installed on the housing of electric apparatus room and is constituted with housing positioned at the waterproof bulkhead, wiring Post is located on the housing of electric apparatus room, and is separated with instruction device.

10. negative pressure inhibition device according to claim 1, it is characterised in that also match somebody with somebody the position for installing instruction device in housing Set is equiped with label seat, and label seat is mounted in hull outside, installs instruction device through housing inside label seat.