CN202300891U

CN202300891U - Liquid-discharging system

Info

Publication number: CN202300891U
Application number: CN2011202416189U
Authority: CN
Inventors: 杨明陆; 张亚东; 张天恩; 李越
Original assignee: Hongzhun Precision Tooling Kunshan Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongzhun Precision Tooling Kunshan Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2011-07-11
Filing date: 2011-07-11
Publication date: 2012-07-04
Anticipated expiration: 2021-07-11

Abstract

A liquid-discharging system comprises a closed cavity, a liquid-pumping mechanism and a liquid-discharging mechanism, liquid and a certain density of air are contained in the closed cavity, the liquid-pumping mechanism can pump the liquid in the closed cavity, the pumped liquid is discharged out of the closed cavity from the liquid-discharging mechanism, the liquid-discharging mechanism can prevent the air outside the closed cavity from entering the closed cavity, and the liquid-pumping mechanism can prevent the pumped liquid from flowing into the closed cavity again. Since the liquid-discharging mechanism can prevent the air outside the closed cavity from entering the closed cavity and the liquid-pumping mechanism can prevent the pumped liquid from flowing into the closed cavity again, the liquid can be discharged out of the closed cavity, and the outside air cannot enter the closed cavity.

Description

Drainage system

Technical field

The utility model relates to a kind of drainage system, the particularly a kind of drainage system that can the liquid under certain gaseous environment be discharged.

Background technique

Under the occasion that need sewage be discharged, often can use and discharge after pull of vacuum sucks container with sewage, for example water-suction cleaning appliance makes the gas in the water storage container reach certain degree of vacuum through vacuum system.Sewage is pressed in the container under the effect of air pressure.But because the water storage container of this water-suction cleaning appliance forms the environment of a certain vacuum degree; In draining; Ambient atmos can enter into water storage container through drain opening; Thereby destroy its degree of vacuum, make in draining, must stop vacuum system, cause and in draining, sewage to be sucked in the water storage container.

The model utility content

In view of foregoing, being necessary to provide a kind of can and can stop extraneous empty its to get into the drainage system in sealed cavity with the discharge of the liquid in the sealed cavity.

A kind of drainage system; It comprises sealed cavity, Liquid extracting mechanism and liquid output mechanism; This sealed cavity accommodates the gas of liquid and certain density, and this Liquid extracting mechanism can extract the liquid in this sealed cavity, and the liquid of this extraction is discharged this sealed cavity from this liquid output mechanism; This liquid output mechanism can stop the outer gas of this sealed cavity to get into this sealed cavity, and this Liquid extracting mechanism can stop the liquid that extracts to flow into this sealed cavity again.

Preferably; This Liquid extracting mechanism comprises driven unit, the telescopic component that under the driving of driven unit, can stretch and first fluid non-return assembly; This telescopic component comprises one at the variable flexible cavity of the driving lower volume of driven unit; This first fluid non-return assembly links to each other with this flexible cavity; This first fluid non-return assembly can stop the fluid in this flexible cavity to get in this sealed cavity; This liquid output mechanism comprises the second fluid non-return assembly that links to each other with this flexible cavity, and when this flexible cavity stretched, this liquid can flow into and should perhaps flow out this sealed cavity from this flexible cavity through this second fluid non-return assembly by flexible cavity through this first fluid non-return assembly under the effect of draught head from this sealed cavity.

Preferably; This first fluid non-return assembly comprises that piston is installed in the flexible member of this piston near this flexible cavity one side with fitting; This piston can flow through for liquid, and this flexible member its periphery under the extruding of liquid can produce distortion so that liquid passes through, and this second fluid non-return assembly comprises that piston is installed in the flexible member of this piston away from this flexible cavity one side with fitting; This piston can flow through for liquid, and this flexible member its periphery under the extruding of liquid can produce distortion so that liquid passes through.

Preferably, this first fluid non-return assembly is one-way valve with this second fluid non-return assembly.

Preferably, this driven unit comprises driveshaft, and an end of this driveshaft links to each other with this telescopic component and can drive this telescopic component and stretches.

Preferably; The drive plate that this driven unit also comprises the follower that is fixedly set in this driveshaft one end, actuator, driven by this actuator; And be arranged at the driveshaft on this drive plate; Offer restraining groove on this follower, this driveshaft that is arranged on this drive plate can be matched with interior this follower that also can under the drive of this drive plate, drive of this restraining groove versatilely around the rotation of the center of circle of this drive plate.

Preferably, this driven unit also comprises cylinder body and is installed in the driven plunger in this cylinder body that this driven plunger links to each other with this driveshaft.

Preferably, this Liquid extracting mechanism also comprises control unit, and this control unit comprises sensor and the controller that is installed in this sealed cavity, and this sensor can send liquid level information to this controller, and this controller is according to this driven unit action of information Control.

Preferably; This sensor is set at preset liquid level with the required liquid level in this sealed cavity; Liquid level in this sealed cavity surpasses in the time of should presetting liquid level; This controller receives this driven unit of information Control and drives should flexible cavity flexiblely, and when the liquid level in this sealed cavity returned to this preset liquid level, this this driven unit of controller control stopped to drive should flexible cavity flexible.

Preferably; When the cavity that should stretch is upheld; Should form draught head outward with this sealed cavity and this sealed cavity by flexible cavity; Liquid in this sealed cavity gets into the cavity that should stretch through first fluid non-return assembly under the effect of draught head, this first fluid non-return assembly stops the outer gas of this sealed cavity to get into the cavity that should stretch, when this flexible cavity shrinks; Liquid in should flexible cavity receives that hydraulic pressure discharges through the second fluid non-return assembly should flexible cavity, and this first fluid non-return assembly stops the liquid in this flexible cavity to be got back in this sealed cavity.

Because this device has adopted liquid output mechanism and Liquid extracting mechanism; And the liquid output mechanism can stop the outer gas of sealed cavity to get into sealed cavity; Liquid extracting mechanism can stop the liquid that extracts to flow into sealed cavity again; Make liquid be able to discharge sealed cavity and make liquid level remain on predeterminated position and ambient air is got in the sealed cavity, therefore, can in discharge opeing, reach and keep the effect that gas density does not change in the sealed cavity.

Description of drawings

Fig. 1 is the principle schematic of drainage system shown in the utility model.

Structural representation when Fig. 2 is in first state for first mode of execution of drainage system shown in the utility model.

Structural representation when Fig. 3 is in second state for drainage system shown in Figure 2.

Fig. 4 is the structural representation of the drainage system of second mode of execution of drainage system shown in the utility model when using.

Schematic representation when Fig. 5 is in first state for drainage system shown in Figure 4.

Schematic representation when Fig. 6 is in second state for drainage system shown in Figure 4.

The primary component symbol description

Sealed cavity	A
		Driven unit	B
Telescopic component	C
		First fluid non-return assembly	D
The liquid output mechanism	E
		Drainage system
	100，400
		Sealed cavity	10，40
Liquid extracting mechanism	20，50
		The liquid output mechanism	30，60
Reservoir channel	12，42
		Gas channel	14，44

Slag exhausting mouth	16，46
		Sealing cover	18，48
Telescopic component	21，41
		First fluid non-return assembly	23，43
Driven unit	25，45
		Control unit	27，47
Flexible cavity	211，5111
		Opening end	213，5113
Outage	215，5115
		Sidewall	2111，5117
First chamber	2113，5118
		Second chamber	2115，5119
Piston	231，311，513，531，611
		Permeable hole	2311，3115
Flexible member	233，313，533，613
		Filter screen	235，535
Driveshaft	251，257，555
		Drive end	2511
Follower	253
		Restraining groove	2531
Drive plate	255
		Rounded face	2551
Sensor	271，571
		The second fluid non-return assembly	31，61
Supporting surface	3111，5133
		Sealing surface	3113，3133，5131

Cylinder body	511，551
		Pull bar	515
First holding channel	517
		Second holding channel	519
Driven plunger	553

Following embodiment will combine above-mentioned accompanying drawing to further specify the utility model.

Embodiment

See also Fig. 1, the sealed cavity A that the drainage system of the utility model comprises, Liquid extracting mechanism (figure is mark not) and liquid output mechanism E.Liquid extracting mechanism comprises driven unit B, the telescopic component C that under the driving of driven unit B, can stretch and the first fluid non-return assembly D that is connected with telescopic component C.Liquid extracting mechanism can extract the liquid among the sealed cavity A; The liquid that extracts is discharged sealed cavity A from liquid output mechanism E; Liquid output mechanism E can stop the outer gas of sealed cavity A to get into sealed cavity A, and Liquid extracting mechanism can stop the liquid that extracts to flow into sealed cavity A again.

Sealed cavity A accommodates the gas of certain vacuum degree and the liquid of certain volume.Telescopic component C has a flexible cavity (figure does not show); First fluid non-return assembly D is immersed in the liquid among the sealed cavity A; First fluid non-return assembly D can allow that the liquid among the sealed cavity A gets into telescopic component C and also can get among the fluid entering sealed cavity A that stops among the telescopic component C, and the gas (for example ambient air) during liquid output mechanism E can stop outside the sealed cavity A flows into telescopic component C.When the liquid of sealed cavity A surpassed preset liquid level; It is flexible to change the volume of flexible cavity that driven unit can drive telescopic component C; Thereby produce a draught head at flexible cavity and sealed cavity A; Make the liquid among the sealed cavity A under the effect of draught head, flow into telescopic component C or flow out sealed cavity A through liquid output mechanism E through first fluid non-return assembly D from telescopic component C from sealed cavity A; Can make excess liquid be able to discharge sealed cavity like this makes liquid level remain on predeterminated position and ambient air is got in the sealed cavity; Therefore, can in discharge opeing, reach the effect that gas degree of vacuum does not change among the maintenance sealed cavity A.

See also Fig. 2, the drainage system 100 in the utility model first mode of execution comprises sealed cavity 10, Liquid extracting mechanism 20 and the liquid output mechanism 30 that is connected with Liquid extracting mechanism 20.Liquid extracting mechanism 20 comprises telescopic component 21, first fluid non-return assembly 23, driven unit 25 and control unit 27, and liquid output mechanism 30 comprises the second fluid non-return assembly 31.

Sealed cavity 10 comprises and offers reservoir channel 12 and gas channel 14 on the both sides sidewall near its top respectively and offer slag exhausting mouth 16 in its bottom and with the sealing cover 18 of slag exhausting mouth 16 sealings.Reservoir channel 12 is used for flowing into for liquid, and gas channel 14 links to each other with sealed cavity 10 outer vacuum systems (figure does not show) that make sealed cavity 10 keep the certain vacuum degree.

Telescopic component 21 is cylindric; Axially offer flexible cavity 211 and be formed with corresponding flexible cavity 211 sidewalls 2111 along it; One end of telescopic component 21 is formed with the opening end 213 that communicates with the cavity 211 that stretches; The other end is a closed end, and sidewall 2111 offers outage 215 at contiguous closed end place.Opening end 213 places the liquid of sealed cavity 10, and outage 215 links to each other with liquid-discharging tube (figure does not show) and discharges with the liquid that will flow in the flexible cavity 211.In this mode of execution, telescopic component 21 is one to offer the cylinder body of cavity.

The filter screen 235 that first fluid non-return assembly 23 comprises piston 231, is arranged at the flexible member 233 that deviates from opening end 213 on the piston 231 and is located at opening end 213 places.

Offer a plurality of permeable holes 2311 on the piston 231 and flow into flexible cavity 211 so that the liquid in the sealed cavity 10 can see through piston 231.Permeable hole 2311 can also stop the impurity in the liquid to see through.

The periphery of flexible member 233 and sidewall 2111 fit flexible cavity 211 is isolated to stop the liquid in the flexible cavity 211 to flow out towards opening end 213 with sealed cavity 10.Flexible member 233 is processed for flexible material, the elasticity bending and form certain clearance with sidewall 2111 and flow into telescopic cavity body 211 for the liquid in the sealed cavity 10 under the punching press of liquid of its periphery.In this mode of execution, flexible member 233 is circular silicagel pad.Filter screen 235 is used for the liquid filtering that gets into flexible cavity 211 for offering the wire gaze of filtering hole.

Driven unit 25 comprises driveshaft 251, is fixedly set in the follower 253 of driveshaft 251 1 ends, actuator (figure does not show), the drive plate 255 that driven by actuator, and is arranged at the driveshaft 257 on the drive plate 255.Driveshaft 257 is arranged in the flexible cavity 211 and can moves along the axially relative telescopic component 21 of flexible cavity 211, and driveshaft 257 links to each other with piston 231 and flexible member 233 away from an end of follower 253.

Follower 253 is for being arranged at a rectangular block of the other end one side relative with opening end 213, and its length direction is vertical with driveshaft 257.Follower 253 offers restraining groove 2531 along its length direction, and restraining groove 2531 is a rectangular through slot, and its length direction is parallel with the length direction of follower 253.In this mode of execution, follower 253 is one-body molded with driveshaft 257.

Drive plate 255 is that a disk and contiguous follower 253 are provided with, and its center of circle is on the central axis of telescopic component 21.Drive plate 255 comprises the rounded face 2551 that a parallel follower 253 is provided with, and drive plate 255 can be around its center of circle rotation under the driving of actuator.

Driveshaft 251 is the cylindrical bump that is arranged at rounded face 2551 peripheries of drive plate 255, and it comprises the fixed connecting end (figure does not show) and drive end 2511 that is oppositely arranged.Fixed connecting end is used for driveshaft 257 is fixedly connected on drive plate 255.Drive end 2511 can movable be matched with in the restraining groove 2531 and can drive follower 253 and rotatablely move around the center of circle of drive plate 255, and relative driveshaft 257 slides so that driveshaft 251 remains on the axis of telescopic component 21 can make follower 253 rotations the time.

Control unit 27 comprises sensor 271 that detects liquid level in the sealed cavity 10 and the controller that receives said liquid level information (figure does not show); Sensor 271 is installed in the sealed cavity 10; In this mode of execution, be preset with preset liquid level in the sealed cavity 10; Sensor 271 is installed in preset liquid level place and can detects the liquid level information in the sealed cavity 10, the information that controller receiving sensor 271 transmits and according to these information Control driven unit 25 actions.

The second fluid non-return assembly 31 comprises piston 311 and the flexible member 313 that is connected with driven unit 25.

Piston 311 is round pie, and it is arranged in the flexible cavity 211 and between opening end 213 and outage 215, and they can opposing sidewalls 2111 motions under the drive of driven unit 25.Piston 311 comprises towards the supporting surface 3111 of driven unit 25 and the sealing surface 3113 that is provided with around periphery.The shape of sealing surface 3113 adapts and can fit with sidewall 2111 with sidewall 2111 and is divided into first chamber 2113 that is in neighbouring open end 213 1 sides and second chamber 2115 that is connected with outage 215 with the cavity 211 that will stretch.Connect on the supporting surface 3111 of piston 311 and offer a plurality of permeable holes 3115 so that liquid can see through piston 311 inflows second chamber 2115.Permeable hole 3115 can also stop the impurity in the liquid to see through.

Flexible member 313 profiles are similar with flexible member 233, and the one of which side is fitted and is supported on the supporting surface 3111 of piston 311.Flexible member 233 comprises the obstructing surface 3131 that deviates from supporting surface 3,111 one sides, and around its periphery and with sidewall 2111 corresponding sealing surfaces 3133.Sealing surface 3133 fits 2115 sealings of second chamber to stop liquid return to the first chamber 2113 that gets in second chamber 2115 with sidewall 2111.The periphery of flexible member 313 can be under the punching press of liquid elasticity bending and form certain clearance with sidewall 2111 and flow into second chamber 2115 for the liquid that sees through piston 311.In this mode of execution, flexible member 313 is circular silicagel pad.

See also Fig. 2 and Fig. 3, during work, start vacuum system and make sealed cavity 10 reach certain degree of vacuum, make extraneous liquid get into the sealed cavity 10 from reservoir channel 12.

When the liquid in the sealed cavity 10 surpasses preset liquid level; Actuator is not worked; Follower 253 is in the closest approach of the contiguous telescopic component 21 of drive plate 255; Correspondingly, piston 311 is in flexible cavity 211 with flexible member 313 and is in the desired location near opening end 213, and this moment, drainage system 100 was in first state.

When surpassing preset liquid level, sensor 271 sends liquid level information to controller, and controller controlling and driving part drives.Actuator drives drive plate 255 and rotates, and the drive end 2511 on it supports the sidewall of restraining groove 2531 to drive follower 253 around the rotation of the center of drive plate 255.Because driveshaft 251 can rotate along with the center around drive plate 255 of drive plate 255, thereby drive certain the departing from of axial generation of driveshaft 257 and flexible cavity 211.Under the resistance of driveshaft 257, follower on it 253 can and driveshaft 251 produce and slide, promptly driveshaft 251 along the automatic slippage of restraining groove 2531 length directions for driveshaft 257 self-alignings with the parallel to an axis of flexible cavity 211.

Rotation along with drive plate 255; Driveshaft 257 along its axial direction away from opening end 213; Driveshaft 251 turns to the distal-most end apart from telescopic component 21; At this moment, drive end 2511 slides onto the middle part of restraining groove 2531 length directions automatically and is positioned on the axially-extending line of driveshaft 257, and sidewall 2111 moves to the predetermined position of contiguous outage 215 from initial position in the drive lower edge of driveshaft 257 for piston 311 and flexible member 313.At this moment, drainage system 100 reaches second state.

At first status transition during to second state; Because drive end 2511 drives followers 253 and moves along telescopic component 21, driveshaft 257 in the drive lower edge of follower 253 its axially away from opening end 213 and drive piston 311 and flexible member 313 towards moving away from outage 215 directions.In this process; The sealing surface 3133 of flexible member 313 is fitted 2113 sealings of first chamber with sidewall 2111; Flexible member 313 continues to become big, air pressure reduces and produce certain draught head with second chamber 2115 away from the volume of opening end 213, the first chambers 2113.Flexible member 313 is extending distortion and fitting tightly on piston 311 under the effect of draught head, the sealing surface 3113 on it is fitted closelyr with sidewall 2111.

When the air pressure in first chamber 2113 during less than the air pressure in the sealed cavity 10; Liquid in the sealed cavity 10 sees through filter screen 235 entering opening ends 213 and continues and impacts flexible member 233 through the permeable hole 2311 of piston 231 under action of pressure; The periphery of flexible member 233 produces certain bending under the impact of liquid, thus with sidewall 2111 generation gaps to get into for liquid in first chamber 2113.2311 pairs of liquid that get in first chamber 2113 of the permeable hole of filter screen 235 and piston 231 filter.

When drainage system 100 arrives second state, fit tightly under the pressure of flexible member 233 liquid in first chamber 2113 on piston 231 and fit first chamber 2113 is isolated to stop the liquid in first chamber 2113 to flow out towards opening end 213 with sealed cavity 10 with sidewall 2111.

When drainage system 100 during from second status transition to first state, actuator drives drive plate 255 and is rotated further, and the driveshaft 251 on it moves to most proximal end from the distal-most end apart from telescopic component 21.Piston 311 moves to initial position from predeterminated position with flexible member 313 under the drive of driveshaft 257; In this process; First chamber, 2113 smaller volume; Flexible member 313 bending distortion under the impact of liquid makes the sealing surface 3133 on it produce certain clearance with sidewall 2111, thereby makes flow direction second chamber 2115 in first chamber 2113.

First fluid non-return assembly 23 is discharged sealed cavity 10 along telescopic component 21 to-and-fro motion continuous firings with liquid, and the liquid level in the sealed cavity 10 continues to descend.When sensor 271 detected liquid and dropped to preset liquid level, controller receiving sensor 271 information transmitted transmitted Stop messages to driven unit 25, and driven unit 25 shuts down according to this Stop message, and drainage system 100 quits work thereupon.

After using a period of time, produce certain spot in the sealed cavity 10, can open sealing cover 18 spot is discharged from sealed cavity through slag exhausting mouth 16.

Be appreciated that position that flexible member 313 is connected with driveshaft 257 is that metal is processed and one-body molded with driveshaft 257, its periphery away from driveshaft 257 is the periphery that driveshaft 257 was processed and be embedded in to flexible material.

Sensor 271 in the above-mentioned drainage system 100; Can detect the liquid level in the sealed cavity 10 and send liquid level information to controller; When the liquid level that detects has surpassed preset liquid level, thereby controller controlling and driving assembly 25 drives first fluid non-return assembly 23 motions startup drainage system 100 with unnecessary liquid discharge sealed cavity 10.When the liquid level of sealed cavity 10 is put when being reduced to preset liquid level; Driven unit 25 quits work; Send drainage system 100 to quit work in the discharge opeing process thereby make; Because the deformation effect of flexible member 313 and flexible member 233 makes liquid be able to discharge and the gas at outage 215 places can not get in the sealed cavity 10, thereby can not destroy the gas density in the sealed cavity 10.

See also Fig. 4, the drainage system 400 in the utility model second mode of execution comprises sealed cavity 40, Liquid extracting mechanism 50 and the liquid output mechanism 60 that is connected with Liquid extracting mechanism 50.Liquid extracting mechanism 50 comprises telescopic component 51, first fluid non-return assembly 53, driven unit 55 and control unit 57, and liquid output mechanism 60 comprises the second fluid non-return assembly 61.

Sealed cavity 40 offers reservoir channel 42 and gas channel 44 respectively, is opened in the slag exhausting mouth 46 of sealed cavity 40 bottoms on the both sides sidewall near its top, reach the sealing cover 48 with slag exhausting mouth 46 sealings.Reservoir channel 42 is used for flowing into for liquid.Gas channel 44 links to each other with sealed cavity 40 outer making form the certain vacuum degree in the sealed cavity 40 vacuum system (figure does not show).

Telescopic component 51 is a cylinder, and it is installed in the sealed cavity 40, comprises cylinder body 511, piston 513 and the pull bar 515 that links to each other with piston 513, and is oppositely arranged on first holding channel 517 and second holding channel 519 near telescopic component 51 1 ends.Be formed with flexible cavity 5111 in the cylinder body 511 and comprise opening end 5113 and the outage 5115 that communicates with flexible cavity 5111.Flexible cavity 5111 extends axially and comprises sidewall 5117 along cylinder body.Opening end 5113 is opened in the both sides of cylinder body 511 near an end relatively with outage 5115; The liquid that opening end 5113 can hold in the sealed cavity 40 flows into; First holding channel 517 is fixedly set in opening end 5113 places and communicates with flexible cavity 5111; Second holding channel 519 communicates with the external world, and the liquid that can hold in the cylinder body 511 flows out cylinder body 511.In this mode of execution; Opening end 5113 is arranged on the same horizontal line in the liquid with outage 5115; First holding channel 517 is extended to form to cylinder body 511 1 sides by opening end 5113, and second holding channel 519 is stretched out by outage 5115 and forms and one-body molded with cylinder body 511.

Piston 513 is installed in the flexible cavity 5111 versatilely; Comprise a sealing surface 5131 that is positioned at its periphery and towards the supporting surface 5133 of opening end 5113 and outage 5115, the sidewall 5117 of sealing surface 5131 and cylinder body 511 fits and is divided into disconnected first chamber 5118 and second chamber 5119 mutually with the cavity 5111 that will stretch.First chamber 5118 is connected with opening end 5113 and outage 5115.One end of pull bar 515 is fixedly connected with the end of piston 513 near second chamber 5119, and the other end of pull bar 515 stretches out outside the cylinder body 511 from second chamber 5119.

First fluid non-return assembly 53 is installed in first holding channel 517; It comprises piston 531, flexible member 533 and filter screen 535, piston 531 match with first holding channel, 517 inwalls and piston 531 on offer through hole (figure do not show) and get into flexible cavity 5111 for the liquid in the sealed cavity 40.Flexible member 533 is roughly round pie and is processed by silica gel material, and it is installed in the side of piston 531 near opening end 5113, and its approximate center is fixed on the piston 531, and its periphery and first holding channel 517 fit so that first holding channel 517 is sealed.Filter screen 535 is used for the liquid filtering that gets into first chamber 5118 for offering the filtering hole wire gaze.

Driven unit 55 is one and drives cylinder that it comprises that cylinder body 551, activity are installed in the driven plunger 553 in the cylinder body 551, and driveshaft 555.Cylinder body 551 is installed in sealed cavity 40 outsides, and the installing mode and the piston 513 of driven plunger 553 are similar, an end of driveshaft 555 and driven plunger 553 Joints, the other end and pull bar 515 Joints.

Control unit 57 comprises sensor 571 that detects liquid level in the sealed cavity 40 and the controller that receives said liquid level information (figure does not show); Sensor 571 is installed in the sealed cavity 40; In this mode of execution, be preset with preset liquid level in the sealed cavity 40; Sensor 571 is installed in preset liquid level place and can detects the liquid level information in the sealed cavity 40, the information that controller receiving sensor 571 transmits and according to these information Control driven unit 55 actions.

Sensor 571 is installed in the sealed cavity 40; In this mode of execution, be preset with preset liquid level in the sealed cavity 40; Sensor 571 is installed in preset liquid level place and can detects the liquid level information in the sealed cavity 40, and the information that controller receiving sensor 571 transmits also will be according to 55 actions of information Control driven unit.

The second fluid non-return assembly 61 is installed in second holding channel 519, and it comprises piston 611 and flexible member 613.The similar of piston 611 and piston 531, the structural similarity of flexible member 613 and flexible member 533.

During assembling; Telescopic component 51 is installed in the sealed cavity 40; Wherein cylinder body 511 places the liquid in the sealed cavity 40 perpendicular to liquid level and opening end 5113 and outage 5115; The first fluid non-return assembly 53 and the second fluid non-return assembly 61 are installed in respectively in first holding channel 517 and second holding channel 519; The periphery of piston 531 is fixed in the inwall of first holding channel, and flexible member 533 is installed in the side of piston 531 near opening end 5113, and the inwall of the periphery of flexible member 533 and first holding channel 517 fits; Its central position is fixed on the piston 531; The affixed inwall with second holding channel 519 of the periphery of piston 611, flexible member 613 are installed in piston 611 and fit away from a side of outage 5115 and the periphery of flexible member 613 and the inwall of second holding channel 519, and the central position Joint of the central position of flexible member 613 and piston.

Driven unit 55 is installed on sealed cavity 40 outsides; Driveshaft 555 is towards a side of telescopic component 51 and be arranged in the sealed cavity 40, driveshaft 555 is moved to be positioned on the same axis with pull bar 515 and the end of driveshaft 555 and pull bar 515 end away from piston 513 is fixedly connected with fastening piece (figure does not show).Filter screen 535 is installed in the end of first holding channel 517, sensor 571 and controller are installed in the sealed cavity 40.

See also Fig. 4 and Fig. 5, during use, start vacuum system, make to form the certain vacuum degree in the sealed cavity 40, the active force of extraneous liquid outer draught head in the inflow sealed cavity 40, is established liquid level down.When sensor 571 detects liquid in the sealed cavity 40 and surpasses preset liquid level; The liquid level information that controller receiving sensor 571 transmits also sends a log-on message to and drives telescopic component 51; Drive telescopic component 51 and drive driven plunger 553 and drive driveshaft 555 and to telescopic component 51 in, move, so drive pull bar 515 draw piston 513 along sidewall 5117 courts away from opening end 5113, piston 513 completely cuts off first chamber 5118 and second chamber 5119; The volume of first chamber 5118 increases gradually; Air pressure reduces, and at this moment, the air pressure in second holding channel 519 is greater than the air pressure in first chamber 5118; Flexible member 613 is fitting tightly under the effect of draught head on piston 611, and second holding channel 519 and first chamber 5118 is isolated.And the air pressure in the sealed cavity 40 is greater than the air pressure in first chamber 5118; Liquid wherein sees through filter screen 535 and piston 531 compressing flexible members 533 under the effect of draught head, make flexible member 533 peripheries produce the elasticity bending and flow into first chamber 5118 with first holding channel, 517 generation gaps for liquid.At this moment, drainage system 400 is first state.

When driven plunger 553 moves to range in telescopic component 51, be full of liquid in first chamber 5118.See also Fig. 6; Driven plunger 553 drives driveshaft 555 towards telescopic component 51 motions; And then drive pull bar 515 push piston 513 to the motion of opening end 5113 directions, and the volume of first chamber 5118 reduces gradually, and second chamber 5119 increases gradually; Liquid motion in supporting surface 5133 pushing and pressing first chamber 5118 of piston 513; The liquid compressing of flexible member 533 in first chamber fits tightly on piston 531 opening end 5113 sealings down, flexible member 613 under the pushing and pressing of liquid and compressing to flowing out first chamber 5118 for liquid away from piston 611 1 side bendings and with the inwall generation certain clearance of second holding channel 519; At this moment, drainage system 400 arrives second state.

Driveshaft 555 band pistons 513 are discharged sealed cavity along cylinder body 511 to-and-fro motion continuous firings with liquid, and the liquid level in the sealed cavity 40 continues to descend.When sensor 571 detected liquid and dropped to preset liquid level, controller receiving sensor 571 information transmitted transmitted Stop message to actuator, and actuator shuts down according to this Stop message, and drainage system 400 quits work thereupon.

After using a period of time, deposition has waste in the sealed cavity 10, can open sealing cover 48 waste is discharged from sealed cavity through slag exhausting mouth 46.

Be appreciated that pull bar 515 is also can driveshaft 555 one-body molded.

Above-mentioned drainage system 400 includes sensor 571; Can detect the liquid level change in the sealed cavity 40; When the liquid level that detects has surpassed preset liquid level; Information and 513 motions of controlling and driving assembly 55 drive stay 515 band pistons that controller is received sensor 571 transmission flow into first chamber 5118 with the liquid in the sealed cavity 40, then the liquid in first chamber 5118 is discharged sealed cavity 40, thereby the liquid level in the sealed cavity 40 is controlled at predeterminated position.And, in whole discharge opeing process,, can stop the gas in the sealed cavity 40 to get into the gas density of destroying in the sealed cavity 40 in the sealed cavity 40 because first opening end is arranged in the seal action of liquid and flexible member 533 and flexible member 613.

Its technique effect that does not depart from the utility model is appreciated that those skilled in the art also can do other and change in the utility model spirit, as long as all can.These all should be included within the utility model scope required for protection according to the variation that the utility model spirit is done.

Claims

1. drainage system; It comprises sealed cavity, Liquid extracting mechanism and liquid output mechanism; Said sealed cavity accommodates the gas of liquid and certain density; It is characterized in that: said Liquid extracting mechanism can extract the liquid in the said sealed cavity; Said Liquid extracting mechanism comprises driven unit, the telescopic component that under the driving of driven unit, can stretch and first fluid non-return assembly; Said telescopic component comprises one at the variable flexible cavity of the driving lower volume of driven unit; Said first fluid non-return assembly links to each other with said flexible cavity, and said first fluid non-return assembly can stop the fluid in the said flexible cavity to get in the said sealed cavity, and said liquid output mechanism comprises the second fluid non-return assembly that links to each other with said flexible cavity; When said flexible cavity stretched, said liquid can flow into said flexible cavity or flow out said sealed cavity from said flexible cavity through the said second fluid non-return assembly through said first fluid non-return assembly under the effect of draught head from said sealed cavity.

2. drainage system as claimed in claim 1; It is characterized in that: said first fluid non-return assembly comprises that piston is installed in the flexible member of said piston near said flexible cavity one side with fitting; Said piston can flow through for liquid; Said flexible member its periphery under the extruding of liquid can produce distortion so that liquid passes through; The said second fluid non-return assembly comprises that piston is installed in the flexible member of said piston away from said flexible cavity one side with fitting, and said piston can flow through for liquid, and said flexible member its periphery under the extruding of liquid can produce distortion so that liquid passes through.

3. drainage system as claimed in claim 1 is characterized in that: said first fluid non-return assembly and the said second fluid non-return assembly are one-way valve.

4. drainage system as claimed in claim 1 is characterized in that: said driven unit comprises driveshaft, and an end of said driveshaft links to each other with said telescopic component and can drive said telescopic component and stretches.

5. drainage system as claimed in claim 4; It is characterized in that: the drive plate that said driven unit also comprises the follower that is fixedly set in said driveshaft one end, actuator, driven by said actuator; And be arranged at the driveshaft on the said drive plate; Offer restraining groove on the said follower, be arranged at said driveshaft on the said drive plate and can be matched with in the said restraining groove versatilely and can under the drive of said drive plate, drive said follower and rotate around the center of circle of said drive plate.

6. drainage system as claimed in claim 4 is characterized in that: said driven unit also comprises cylinder body and is installed in the driven plunger in the said cylinder body that said driven plunger links to each other with said driveshaft.

7. drainage system as claimed in claim 1; It is characterized in that: said Liquid extracting mechanism also comprises control unit; Said control unit comprises sensor and the controller that is installed in the said sealed cavity; Said sensor can send liquid level information to said controller, and said controller is according to the said driven unit action of information Control.

8. drainage system as claimed in claim 7; It is characterized in that: said sensor is set at preset liquid level with the required liquid level in the said sealed cavity; When the liquid level in the said sealed cavity surpasses said preset liquid level; Said controller receives the said driven unit of information Control, and to drive said flexible cavity flexible, and when the liquid level in the said sealed cavity returned to said preset liquid level, said controller is controlled said driven unit, and to stop to drive said flexible cavity flexible.

9. drainage system as claimed in claim 1; It is characterized in that: when said flexible cavity is upheld; Said flexible cavity and said sealed cavity and said sealed cavity form draught head outward; Liquid in the said sealed cavity gets into said flexible cavity through first fluid non-return assembly under the effect of draught head, said first fluid non-return assembly stops the outer gas of said sealed cavity to get into said flexible cavity, when said flexible cavity shrinks; Liquid in the said flexible cavity receives hydraulic pressure and discharges said flexible cavity through the second fluid non-return assembly, and said first fluid non-return assembly stops the liquid in the said flexible cavity to be got back in the said sealed cavity.