CN202186879U

CN202186879U - Liquid discharging device

Info

Publication number: CN202186879U
Application number: CN2011202416422U
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: 2012-04-11
Anticipated expiration: 2021-07-11

Abstract

A liquid discharging device for discharging the liquid in the cavity comprises a cylinder and a driving component; an internal cavity, a liquid inlet end and a liquid outlet end communicated with the internal cavity are arranged in the cylinder; the cylinder further comprises a piston and a pull rod; one end of the pull rod is fixedly connected with the piston; the other end of the pull rod is fixedly connected with the driving component; the liquid discharging device further comprises a first check component arranged on the liquid inlet end and a second check component arranged on the liquid outlet end; the driving component drives the pull rod to lead the piston to keep far away or approach the liquid inlet end, so that the liquid flows into the internal cavity via the first check component or flows out of the internal cavity via the second check component; the first check component is used for stopping the liquid flowing out of the internal cavity from the liquid inlet end; and the second check component is used for stopping the gas flowing into the liquid outlet end. The liquid discharging device can discharge the liquid in the closed cavity, and prevents the closed cavity and the outside from exchanging air.

Description

Pumping equipment

Technical field

The utility model relates to a kind of pumping equipment, particularly a kind ofly can the liquid in the closed cavity discharged and is kept the gaseous environment unmodified pumping equipment in the closed cavity.

Background technology

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

The utility model content

In view of foregoing, being necessary to provide a kind of can discharge the liquid in the closed cavity, and can prevent closed cavity and the extraneous pumping equipment that carries out gas exchange.

A kind of pumping equipment; Be used for getting rid of the liquid of closed cavity; This pumping equipment comprises cylinder and driven unit; Liquid inflow end and liquid outflow end that this cylinder offers inner chamber and communicates with inner chamber; This cylinder also comprises the pull bar that a piston and an end are captiveed joint with this piston, and this pull bar other end is captiveed joint with this driven unit, and this pumping equipment comprises that also being installed in this liquid flows into the first non-return assembly of holding; Be installed in the second non-return assembly of this liquid outflow end; This driven unit drive this pull bar with drive this piston away from or approaching this liquid flow into end and flow out this inner chamber so that liquid flows in this inner chamber or through this second non-return assembly through this first non-return assembly, this first non-return assembly is used to stop liquid to flow into end from this liquid to flow out inner chamber, this second non-return assembly is used to stop gas to get into this liquid outflow end.

Preferably; This pumping equipment also comprises a control assembly; This control assembly comprises the controller of sensor that detects liquid level and the information that receives this sensor sensing; This controller drives this pull bar along the axis direction crank motion according to this driven unit of this information Control, and this pull bar drives this piston crank motion in this cylinder.

Preferably; This piston comprises that one is positioned at the sealing surface of its periphery and the supporting surface of holding towards this liquid inflow; The sidewall of sealing face and this inner chamber fits inner chamber is divided into disconnected first chamber and second chamber mutually, and this first chamber flows into end with liquid and the liquid outflow end is connected.

Preferably; This cylinder body also comprises first holding channel that is connected with this liquid inflow end and second holding channel that is connected with this liquid outflow end; This first holding channel is immersed in the liquid away from the end that this liquid flows into end; This first non-return assembly comprises piston and the flexible piece that is installed in this first holding channel; Piston is installed in this flexible piece and flows into a side of holding away from this liquid, and this second non-return assembly comprises piston and the flexible piece that is installed in this second holding channel, and piston is installed in the side of this flexible piece near this liquid outflow end.

Preferably, all offer the through hole that sees through for liquid on the piston of the piston of this first non-return assembly and this second non-return assembly, the flexible piece of the flexible piece of this first non-return assembly and this second non-return assembly is a silicagel pad.

Preferably, this first non-return assembly also comprises a filtering net, this filtering net be arranged at this piston away from a side of this inner chamber with to this liquid filtering.

Preferably, the approximate centre position of the flexible piece of this first non-return assembly is fixed on the piston of this first non-return assembly, and the approximate centre position of the flexible piece of this second non-return assembly is fixed on the piston of this second non-return assembly.

Preferably, this driven unit is one and drives cylinder, and this driving cylinder comprises cylinder body, be installed in drive spindle, this drive spindle and this pull bar Joint that driven plunger and an end in the cylinder body link to each other with driven plunger.

Preferably, this driving cylinder and this cylinder dress is arranged on the same axis this drive spindle and the coaxial setting of this pull bar.

Preferably, this driven unit is a cam drive mechanism.

Said pumping equipment since the first non-return assembly and the second non-return assembly by constituting by piston that fits and flexible piece; When ambient atmos is oppressed the flexible piece of the second non-return assembly; The piston of this flexible piece and the second non-return assembly fits; Make ambient atmos not get in the closed cavity, thereby make the gas in the closed cavity not carry out gas exchange with ambient atmos.

Description of drawings

Fig. 1 is pumping equipment with the utility model embodiment structural representation when using.

Scheme drawing when Fig. 2 is in first state for pumping equipment shown in Figure 1.

Scheme drawing when Fig. 3 is in second state for pumping equipment shown in Figure 1.

The main element nomenclature

Pumping equipment	100
		Closed cavity	10
Cylinder	20
		Driven unit	30
The first non-return assembly	40
		The second non-return assembly	50
Control assembly	60
		Reservoir channel	12
Gas passage	14
		Mud hole	16
Seal cover cap	18
		Cylinder body	21
Piston	23
		Pull bar	25
Inner chamber	211
		Sidewall	2111
First chamber	2113
		Second chamber	2115
Liquid flows into end	213
		The liquid outflow end	215
First holding channel	217
		Second holding channel	219
Sealing surface	231
		Supporting surface	233
Cylinder body	31
		Driven plunger	33
Drive spindle	35
		Piston	41
Flexible piece	43
		Filtering net	45
Piston	51
		Flexible piece	53
Sensor	61

The following specific embodiment will combine above-mentioned accompanying drawing to further specify the utility model.

The specific embodiment

See also Fig. 1, pumping equipment 100 comprises cylinder 20, driven unit 30, the first non-return assembly 40, the second non-return assembly 50, is used for the control assembly 60 of controlling and driving assembly 30 actions.In this embodiment; Pumping equipment 100 is used for extracting the liquid of closed cavity 10; Closed cavity 10 offers reservoir channel 12 and gas passage 14, closed cavity 10 respectively on the both sides sidewall near its top bottom offers mud hole 16, and closed cavity 10 also comprises mud hole 16 leak free seal cover caps 18.Reservoir channel 12 is equiped with the valve body (figure does not show) of controlling liquid flow.Reservoir channel 12 is used for flowing into for liquid.Gas passage 14 and closed cavity 10 outer one link to each other to the vacuum (figure does not show) that closed cavity carries out vacuum.

Cylinder 20 is installed in the closed cavity 10, and it comprises cylinder body 21, piston 23 and the pull bar 25 that links to each other with piston 23.Be formed with inner chamber 211 in the cylinder body 21 and comprise that the liquid that communicates with inner chamber 211 flows into end 213 and liquid outflow end 215, and be oppositely arranged on first holding channel 217 and second holding channel 219 near cylinder 20 1 ends.Inner chamber 211 extends axially and comprises sidewall 2111 along cylinder body.Liquid flows into end 213 and is opened in the both sides of cylinder body 21 near an end relatively with liquid outflow end 215; Liquid flows into end 213 can hold the liquid inflow in the closed cavity 10; First holding channel 217 is fixedly set in liquid inflow end 213 places and communicates with inner chamber 211; Second holding channel 219 is fixedly set in liquid outflow end 215 places and communicates with the external world, and the liquid that can hold in the cylinder body 21 flows out cylinder body 21.In this embodiment; Liquid flows into end 213 and is arranged on the same horizon in the liquid with liquid outflow end 215; First holding channel 217 flows into end 213 by liquid and extends to form to cylinder body 21 1 sides, and second holding channel 219 is stretched out by liquid outflow end 215 and forms and one-body molded with cylinder body 21.

Piston 23 can be installed in the inner chamber 211 versatilely; Comprise a sealing surface 231 that is positioned at its periphery and flow into the supporting surface 233 of end 213 and liquid outflow end 215 towards liquid, sealing surface 231 can fit with the sidewall 2111 of cylinder body 21 inner chamber 211 is divided into disconnected first chamber 2113 and second chamber 2115 mutually.First chamber 2113 flows into end 213 with liquid and liquid outflow end 215 is connected.One end of pull bar 25 is captiveed joint near an end of second chamber 2115 with piston 23, and the other end of pull bar 25 stretches out outside the cylinder body 21 from second chamber 2115.

Driven unit 30 is one and drives cylinder that it comprises that cylinder body 31, activity are installed in the driven plunger 33 in the cylinder body 31, and drive spindle 35.Cylinder body 31 is installed in closed cavity 10 outsides, and the installing mode and the piston 23 of driven plunger 33 are similar, an end of drive spindle 35 and driven plunger 33 Joints, the other end and pull bar 25 Joints.

The first non-return assembly 40 comprises piston 41, flexible piece 43 and filtering net 45; Piston 41 is installed in first holding channel 217 with flexible piece 43, piston 41 can match with first holding channel, 217 inwalls and piston 41 on offer through hole (figure does not show) and get into inner chamber 211 for the liquid in the closed cavity 10.Flexible piece 43 is roughly round pie and is processed by silica gel material, and it is installed in the side of piston 41 near liquid inflow end 213, and its approximate center is fixed on the piston 41, and its periphery and first holding channel 217 fit so that first holding channel 217 is sealed.Filtering net 45 is installed in the side of piston 41 away from liquid inflow end 213, and in this embodiment, filtering net 45 is installed in first holding channel 217.

The second non-return assembly 50 is installed in second holding channel 219, and it comprises piston 51 and flexible piece 53.The similar of piston 51 and piston 41, flexible piece 53 with the structural similitude of the flexible piece 43 of the first non-return assembly 40.

Control assembly 60 comprises sensor 61 that detects liquid level in the closed cavity 10 and the controller that receives said liquid level information (figure does not show); Sensor 61 is installed in the closed cavity 10; In this embodiment, be preset with preset liquid level in the closed cavity 10; Sensor 61 is installed in preset liquid level place and can detects the liquid level information in the closed cavity 10, the information that controller receiving sensor 61 transmits and according to these information Control driven unit 30 actions.

During assembling; Cylinder 20 is installed in the closed cavity 10; Wherein cylinder body 21 flows into end 213 perpendicular to liquid level and liquid and liquid outflow end 215 places the liquid in the closed cavity 10; The first non-return assembly 40 and the second non-return assembly 50 are installed in respectively in first holding channel 217 and second holding channel 219; The periphery of piston 41 is fixed in the inwall of first holding channel, and flexible piece 43 is installed in the side of piston 41 near liquid inflow end 213, and the inwall of the periphery of flexible piece 43 and first holding channel 217 fits; Its center is fixed on the piston 41; The affixed inwall with second holding channel 219 of the periphery of piston 51, flexible piece 53 are installed in piston 51 and fit away from a side of liquid outflow end 215 and the periphery of flexible piece 53 and the inwall of second holding channel 219, and the center Joint of the center of flexible piece 53 and piston.

Driven unit 30 is installed on closed cavity 10 outsides; Drive spindle 35 is towards a side of cylinder 20 and be arranged in the closed cavity 10, drive spindle 35 is moved to be positioned on the same axis with pull bar 25 and the end of drive spindle 35 and pull bar 25 end away from piston 23 is fixedly connected with fastener (figure does not show).Filtering net 45 is installed in the end of first holding channel 217, sensor 61 and controller are installed in the closed cavity 10.

See also Fig. 1 and 2, during use, the open vacuum device; Make to form certain degree of vacuum in the closed cavity 10, extraneous liquid enters into closed cavity 10 through reservoir channel 12, when sensor 61 detects liquid in the closed cavity 10 and surpasses preset liquid level; The liquid level information that controller receiving sensor 61 transmits also sends a log-on message to driven unit 30; Driven unit 30 drives driven plunger 33 and drives drive spindle 35 and to cylinder 20 in, move, and then drives pull bar 25 pulling pistons 23 and hold 213 along sidewall 2111 towards flowing into away from liquid, and piston 23 completely cuts off first chamber 2113 and second chamber 2115; The volume of first chamber 2113 increases gradually; Air pressure reduces, and at this moment, the air pressure in second holding channel 219 is greater than the air pressure in first chamber 2113; Flexible piece 53 is fitting tightly under the effect of draught head on piston 51, and second holding channel 219 and first chamber 2113 is isolated.And the air pressure in the closed cavity 10 is greater than the air pressure in first chamber 2113; Liquid wherein sees through filtering net 45 and piston 41 compressing flexible pieces 43 under the effect of draught head, make flexible piece 43 peripheries produce the elasticity bending and flow into first chamber 2113 with first holding channel, 217 generation gaps for liquid.At this moment, pumping equipment 100 is first state.

When driven plunger 33 moves to range in cylinder 20, be full of liquid in first chamber 2113.See also Fig. 3; Driven plunger 33 drives drive spindle 35 towards cylinder 20 motions; And then drive pull bar 25 promotion pistons 23 to the motion of liquid inflow end 213 directions, and the volume of first chamber 2113 reduces gradually, and second chamber 2115 increases gradually; Liquid motion in supporting surface 233 pushing and pressing first chamber 2113 of piston 23; The liquid compressing of flexible piece 43 in first chamber fits tightly on piston 41 liquid flowed into end 213 sealings down, flexible piece 53 under the pushing and pressing of liquid and compressing to flowing out first chamber 2113 for liquid away from piston 51 1 side bendings and with the inwall generation certain clearance of second holding channel 219; At this moment, pumping equipment 100 arrives second state.

Drive spindle 35 drives piston 23 and along cylinder body 21 crank motion continuous firings liquid is discharged closed cavity, and the liquid level in the closed cavity 10 continues to descend.When sensor 61 detected liquid and dropped to preset liquid level, controller receiving sensor 61 information transmitted transmitted Stop message to actuator, and actuator shuts down according to this Stop message, and pumping equipment 100 quits work thereupon.

If after using a period of time, when generation accretion the like waste is deposited on closed cavity 10 bottoms in the liquid in the closed cavity 10, then can opens seal cover cap 18 waste is discharged from closed cavity through mud hole 16.

Be appreciated that driven unit 30 also can be other actuating devices, for example cam drive mechanism.It is one-body molded that pull bar 25 also can drive spindle 35.The first non-return assembly 40 and the second non-return assembly 50 also can be the check valve of other structures.

Above-mentioned pumping equipment 100 includes sensor 61; Can detect the liquid level change in the closed cavity 10; When the liquid level that detects has surpassed preset liquid level; Information and 23 motions of controlling and driving assembly 30 drive stay 25 drive pistons that controller is received sensor 61 transmission flow into first chamber 2113 with the liquid in the closed cavity 10, then the liquid in first chamber 2113 is discharged closed cavity 10, thereby the liquid level in the closed cavity 10 is controlled at predeterminated position.And, in whole discharge opeing process,, can stop gas and ambient atmos in the closed cavity 10 to carry out gas exchange because liquid flows into the sealing function that end is arranged in liquid and flexible piece 43 and flexible piece 53.

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. pumping equipment; Be used for getting rid of the liquid of closed cavity; Said pumping equipment comprises cylinder and driven unit; Said cylinder also comprises the pull bar that a piston and an end are captiveed joint with said piston; The said pull bar other end is captiveed joint with said driven unit, it is characterized in that: liquid inflow end and liquid outflow end that said cylinder offers inner chamber and communicates with inner chamber, said pumping equipment comprise that also being installed in said liquid flows into the first non-return assembly of holding; Be installed in the second non-return assembly of said liquid outflow end; Said driven unit drive said pull bar with drive said piston away from or approaching said liquid flow into end and flow out said inner chamber so that liquid flows in the said inner chamber or through the said second non-return assembly through the said first non-return assembly, the said first non-return assembly is used to stop liquid to flow into end from said liquid to flow out inner chamber, the said second non-return assembly is used to stop gas to get into said liquid outflow end.

2. described pumping equipment as claimed in claim 1; It is characterized in that: said pumping equipment also comprises a control assembly; Said control assembly comprises the controller of sensor that detects liquid level and the information that receives said sensor sensing; Said controller drives said pull bar along the axis direction crank motion according to the said driven unit of said information Control, and said pull bar drives said piston crank motion in said cylinder.

3. described pumping equipment as claimed in claim 2; It is characterized in that: said piston comprises that one is positioned at the sealing surface of its periphery and the supporting surface of holding towards said liquid inflow; The sidewall of said sealing surface and said inner chamber fits inner chamber is divided into disconnected first chamber and second chamber mutually, and said first chamber flows into end with liquid and the liquid outflow end is connected.

4. described pumping equipment as claimed in claim 1; It is characterized in that: said cylinder body also comprises first holding channel that is connected with said liquid inflow end and second holding channel that is connected with said liquid outflow end; Said first holding channel is immersed in the liquid away from the end that said liquid flows into end; The said first non-return assembly comprises piston and the flexible piece that is installed in said first holding channel; Piston is installed in said flexible piece and flows into a side of holding away from said liquid, and the said second non-return assembly comprises piston and the flexible piece that is installed in said second holding channel, and piston is installed in the side of said flexible piece near said liquid outflow end.

5. described pumping equipment as claimed in claim 4; It is characterized in that: all offer the through hole that can see through for liquid on the piston of the piston of the said first non-return assembly and the said second non-return assembly, the flexible piece of the flexible piece of the said first non-return assembly and the said second non-return assembly is a silicagel pad.

6. pumping equipment as claimed in claim 5 is characterized in that: the said first non-return assembly also comprises a filtering net, said filtering net be arranged at said piston away from a side of said inner chamber with to said liquid filtering.

7. pumping equipment as claimed in claim 5; It is characterized in that: the approximate centre position of the flexible piece of the said first non-return assembly is fixed on the piston of the said first non-return assembly, and the approximate centre position of the flexible piece of the said second non-return assembly is fixed on the piston of the said second non-return assembly.

8. described pumping equipment as claimed in claim 1; It is characterized in that: said driven unit is one and drives cylinder; Said driving cylinder comprises cylinder body, be installed in drive spindle, said drive spindle and said pull bar Joint that driven plunger and an end in the cylinder body link to each other with driven plunger.

9. pumping equipment as claimed in claim 8 is characterized in that: said driving cylinder and said cylinder dress are arranged on the same axis said drive spindle and the coaxial setting of said pull bar.

10. described pumping equipment as claimed in claim 1 is characterized in that: said driven unit is a cam drive mechanism.