CN1130159C

CN1130159C - Self-evacuating vacuum cleaner

Info

Publication number: CN1130159C
Application number: CN 98801660
Authority: CN
Inventors: R·C·伯菲尔德
Original assignee: Shop Vac Corp
Current assignee: Shop Vac Corp
Priority date: 1997-01-15
Filing date: 1998-01-14
Publication date: 2003-12-10
Anticipated expiration: 2018-01-14
Also published as: EP1006855A1; EP1006855B1; AU724121B2; DE69805419T2; HK1023709A1; DE69805419D1; CA2275412C; CA2275412A1; AU6022898A; BR9806904A; WO1998031270A1; CN1243422A

Abstract

A vaccum cleaner has an electric motor driving an air impeller (74) for creating suction and a pump (120) which draws liquid material through an inlet tube (310) from the bottom of a tank (32) and expels it from the tank. The vacuum cleaner also includes a mechanical shut-off and override assembly that automatically shuts off the motor if the liquid level in the tank gets too high. The user, however, can mechanically override this automatic shut-off in order to continue pumping liquid out of the tank. A priming apparatus is disposed in the tank in fluid communication with the pump, and a valve (58) is selectively actuable to establish a pressure differential across liquid in the priming apparatus to thereby prime the pump (120).

Description

Self-evacuating vacuum cleaner

Technical field

The present invention relates to vacuum cleaner, more specifically relate to a kind of like this. wet/dry vacuum cleaners, the liquid substance in its vacuum cleaner case can be emitted by pump pressure.

Background technology

The box vacuum cleaner can be admitted the dry such as chip or dust, also can be used for pumping liquid.When casing is filled, the vacuum subassembly on top (generally include a motor and bleed impeller) can be removed, and the rubbish of the inside is outwelled.If this vacuum cleaner is used for liquid substance, casing is being in or may be very heavy during near its full state, thereby is difficult to mention casing the material of the inside is poured among tank etc.When the liquid level in the casing is higher, even casing is tilted liquid is poured into floor drain also is intractable.

The a solution of liquid being discharged the problem that vacuum chamber runs into is at bottom half an outlet to be set.This scheme is suitable under the situation of the liquid in the casing being poured into floor drain; But,, then casing must be mentioned tank or similar pour(ing) point if do not have floor drain or lower position water to leak.In this case, the outlet of bottom half there is no much values.

Second kind of scheme of toppling over liquid in the vacuum chamber provides a pump, and it has a motor usually in the casing outside or bottom.This pump is removed liquid by the bottom of casing, and by a flexible pipe it is emitted.Although this pump is normally effective, its price is comparatively expensive.This pump not only needs impeller of pump and flexible pipe, but also oneself motor, power line and switch must be arranged.For the totle drilling cost of vacuum cleaner, especially a domestic suction cleaner, the shared score of these parts is sizable.When vacuum cleaner was used for dry, this pump also may reduce the available capacity or the interference work of vacuum tank.In addition, if pump is not arranged in the bottom half, also must provide expensive and complicated structure to make the pump starting.

In order to reduce interference as far as possible, also may need filter the chip in the liquid that enters casing to impeller of pump.Vacuum cleaner has in casing usually catches the filter bag that chip is used.But this filter bag is normally made by paper material, therefore is not suitable for moist collection.

Summary of the invention

According to an aspect of the present invention, provide a kind of vacuum cleaner, it comprises: constitute a chamber and have a casing of an import that is used to admit liquid substance; With one of the chamber atmosphere circulation impeller of bleeding; One pump, the inlet of this pump and chamber in fluid communication, this pump also has an inner pump chamber, and this inside pump chamber has first hole that is connected in pump intake and second hole of circulating with chamber atmosphere; A starting device that is arranged in the chamber and is communicated with the pump intake fluid; Thereby and the device that selectively forms a pressure reduction priming pump on the liquid in starting device.

This vacuum cleaner can have a pump discharge pipe that is connected in pump.One pumping intake piping also can be connected in pump and be connected in a ducted body that is positioned at bottom half.A valve that is positioned on the pump discharge pipe has an outlet that is used to discharge by the liquid of pump institute pump pressure, and a conduit can extend to ducted body from pump discharge pipe.Open valve and can make atmospheric pressure feed outlet and conduit, so that the water in the ducted body is pressed in the inlet tube.This valve can have an air intake, can have such mechanism in valve, and this mechanism has primary importance, and atmospheric pressure flows through air intake on this position.This mechanism has the second place, and on this position, air intake is closed, and the outlet of valve is closed.This mechanism has the 3rd position, and on this position, air intake is closed, and the outlet of valve is opened.Ducted body can have a hole and a valve, and the fluid in the casing enters ducted body by this hole, and the valve in the ducted body cuts out this hole.

According to another aspect of the present invention, provide a kind of vacuum cleaner, it comprises: have a casing that enters the mouth that is used to admit liquid substance; With one of the casing circulation of air impeller of bleeding; Liquid is discharged a pump of casing; Be positioned at casing, be used for a chamber of receiving fluids, wherein, chamber has first hole that is communicated with the pump fluid and second hole that is communicated with atmospheric air by an exit portion; An and valve that places exit portion, also can between an open position and a closed position, move, when being shown in an open position, this valve keeps second hole of chamber and the air communication between the atmosphere, when in the closed position, this valve blocks second hole of chamber and the air communication between the atmosphere.

The conduit that this vacuum cleaner can have a inlet tube that first hole with chamber links to each other with pump and second hole of chamber is linked to each other with valve.This chamber can be sealed by a ducted body; This ducted body can have a hole, the internal fluid communication of this hole and casing, and liquid enters chamber by this hole, and this hole can be closed in case liquid spills by it.

For skilled person in the art, its its feature and advantage are intrinsic in that disclosed, claimed vacuum cleaner, and they will become very clear by the detailed description of doing below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the side view of vacuum cleaner of the present invention;

Fig. 2 is the vertical view of vacuum cleaner of the present invention;

Fig. 3 is the partial cross-sectional side-elevation view of dissecing along the line 3-3 among Fig. 2;

Fig. 4 is the bleed stereogram of impeller of the present invention;

Fig. 5 is the bleed partial sectional view of impeller assembly of the present invention;

Fig. 6 is that part dots, the partial cross-sectional side-elevation view of the switch activated assembly of the present invention;

Fig. 7 is the exploded perspective view of this switch activated assembly;

Fig. 8 is that part dots, the partial elevation view of this switch activated assembly, and wherein some is clipped;

Fig. 9 A is that part dots, the partial top view of this switch activated assembly;

Fig. 9 B is that part dots, the local vertical view cutaway drawing of this switch activated assembly;

Figure 10 is the partial sectional view of the first half ones of exit portion of the present invention;

Figure 11 is the upward view that part dotted, was in the ball valve of Figure 10 position, and wherein some is clipped;

Figure 12 A be ball valve among Fig. 3 by the vertical view after partly clipping, this moment, this ball valve was in the closed position;

Figure 12 B is and vertical view like Figure 12 category-A that this moment, this ball valve was shown in an open position;

Figure 12 C is a vertical view similar with Figure 12 A and 12B, that the expression ball valve is shown in an open position;

Figure 13 is the sectional side view of pump adapter assembly of the present invention;

Figure 14 is the exploded view of the Differential Pressure Unit of pump adapter assembly shown in Figure 13;

Figure 15 A is the enlarged drawing of Differential Pressure Unit shown in Figure 13;

Figure 15 B is the line A-A side cross sectional view of this Differential Pressure Unit along Figure 15 A;

Figure 15 C be with like Figure 15 category-B, represent that this Differential Pressure Unit not exclusively is full of the cutaway view of liquid;

Figure 16 is and the similar view of Fig. 3 one collecting bag and pump adapter assembly wherein to be housed, and to be connected with a flexible pipe;

Figure 17 is the stereogram of collecting bag of the present invention;

Figure 18 A is the stereogram of the sealing detachable cap of this collecting bag when being shown in an open position;

Figure 18 B is the front view of the sealing detachable cap of this collecting bag when in the closed position;

Figure 19 A is the partial elevation view that part dotted, was in the switch activated assembly of off-position, and wherein some is clipped;

Figure 19 B is the partial cross-sectional side-elevation view that part dotted, was in the switch activated assembly of off-position;

Figure 20 A is that part dots, switch activated assembly is transformed into the partial elevation view of " opening " position from " pass ", and wherein some is clipped;

Figure 20 B is the partial cross-sectional side-elevation view that part dots, switch activated assembly is transformed into " opening " position from " pass ";

Figure 21 A is the partial elevation view that part dotted, was in the switch activated assembly of " opening " position, and wherein some is clipped;

Figure 21 B is the partial cross-sectional side-elevation view that part dotted, was in the switch activated assembly of " opening " position;

Figure 22 A is that part dots, switch activated assembly is transformed into the partial elevation view of off-position from " opening ", and wherein some is clipped;

Figure 22 B is the partial cross-sectional side-elevation view that part dots, switch activated assembly is transformed into the off-position from " opening ";

Figure 23 A is that part dots, is in the present invention's machinery shutoff of " opening " position and the partial elevation view of Artificial Control assembly;

Figure 23 B is that part dots, is in the present invention's machinery shutoff of " opening " position and the partial cross-sectional side-elevation view of Artificial Control assembly;

Figure 24 A is that part dots, moves to because of liquid level is too high this machinery shutoff of off-position and the partial elevation view of Artificial Control assembly, and wherein some is clipped;

Figure 24 B is that part dots, moves to because of liquid level is too high this machinery shutoff of off-position and the partial cross-sectional side-elevation view of Artificial Control assembly;

Figure 25 A is that part dots, this machinery turn-offs and the Artificial Control assembly turn-offs the partial elevation view that bypasses with machinery, and wherein some is clipped;

Figure 25 B is that part dots, this machinery turn-offs and the Artificial Control assembly turn-offs machinery the partial cross-sectional side-elevation view that bypasses; And

Figure 26 is a view similar with Figure 16, that represent another embodiment of vacuum cleaner of the present invention.

The specific embodiment

At first referring to Fig. 1 and Fig. 2, what vacuum cleaner of the present invention was total is represented by label 30, and it has a casing 32 and a top vacuum subassembly, and what this assembly was total is represented by label 34.

Casing 32 is supported by caster 36, and has a pair of handle 38.This handle 38 can be mentioned and moves this vacuum cleaner 30 with helping the user.Casing 32 also limits an inlet 40 and an a plurality of door bolt groove 42.Inlet 40 can match, be used for the desired position is aspirated with a vacuum hose (not shown).

Casing 32 supporting top vacuum subassemblies 34.Top vacuum subassembly 34 has a cover cap 44, a motor casing 46, a lid 48 and one handle 50.This top vacuum subassembly 34 can be traditional structure.Except following described pump, mechanical shutoff and manual control system and starting device, top vacuum subassembly 34 and associated components thereof can be similar to the QL20TS type vacuum cleaner by the Shop Vac company manufacturing of Pennsylvania Williamsport.Cover cap 44 has constituted the bottom of top vacuum subassembly 34, and it has one or more door bolts 52.Motor casing 46 is connected in the napex of cover cap 44.Lid 48 and then be connected in the top of motor casing 46, last, handle 50 is positioned at the top of lid 48.When the user wishes that top vacuum subassembly 34 is connected in casing 32, top vacuum subassembly 34 can be mentioned casing 32 tops, make door bolt 52 and fasten groove 42 with a bolt or latch and align, the top vacuum subassembly 34 of loweing, be held on the top of casing 32 up to cover cap 44, then, will fasten 52 with a bolt or latch and be fixed in casing 32.

Motor casing 46 limits a pair of blower fan air discharge duct 54.Discharge by this blower fan air discharge duct 54 from 40 air that suck in the vacuum cleaner 30 that enter the mouth, shown in the arrow B A among Fig. 1.And this motor casing 46 has three ball valves 58 that a pump discharge 56 and extends out from this outlet.The lid 48 of top vacuum subassembly 34 provides shell for a switch activated assembly 60 (Fig. 3) that will be described in detail below, and this lid has a user can engage actuated piece 62 (Fig. 2), and what extend outward from lid 48 is a wire 64.This electric wire 64 extends through the projection 65 on the lid 48, and can permanently be connected in motor casing 46 or removably be connected in it.Motor casing 46 can form two detachable parts that separate with lid 48, or parts that are mutually one.Have under the situation of any structure, motor casing 46 and lid 48 all limit the air duct 66 of a permission air turnover lid 48, shown in the arrow C A among Fig. 1.

See also Fig. 3-5 now, being arranged in the top vacuum subassembly 34 and being positioned in the middle of other parts is the impeller assembly 68 of bleeding.This impeller assembly 68 of bleeding comprises a housing 70, that limits a hole 72 bleed impeller 74, a motor shaft 76, extension 78, a flange gasket 80 and an a pair of plain washer 82 (Fig. 5).(if necessary, vacuum cleaner 30 also can use a plurality of impellers of bleeding.) impeller 74 of bleeding has a upper plate 84 and a lower plate 86, is provided with a series of blades 88 (Fig. 4) between upper plate 84 and lower plate 86.Upper plate 84 limits first hole 90, and lower plate 86 limits second hole 92 of diameter greater than first hole 90.One end of motor shaft 76 is connected in motor 93 (Fig. 3-illustrate the bottom of motor 93), and is shaped on screw thread (Fig. 5) on its other end 94.Axle extension 78 limits a threaded holder 96, and has an end of thread 98 (Fig. 3).

The impeller 74 of bleeding is arranged on (Fig. 5) among the housing 70.The end of thread 94 of motor shaft 76 extends through first hole 90 of the impeller 74 of bleeding.Axle extension 78 is fixed in motor shaft 76 by the end of thread 94 of motor shaft 76 with the engaging of screw thread holder 96 of axle extension 78.Being arranged on upper plate 84 and axle between the extension 78 is one of them plain washer 82.Another plain washer 82 and flange gasket 80 be round motor shaft 76, and be arranged between a upper plate 84 and the motor bearings 102 (Fig. 3).Axle extension 78 extends through second hole 92 of the impeller 74 of bleeding and stretches out by the hole 72 of housing 70 from motor shaft 76, and the end of thread 98 by the axle extension is connected in an impeller of pump 104 (Fig. 3).Equally, motor 93 supports bleed impeller 74 and impeller of pump 104, and drives them by motor shaft 76 and axle extension 78.Perhaps, axle extension 78 can form as one with motor shaft 76, drives bleed impeller 74 and impeller of pump 104 with a kind of overall structure.Another kind method is to make an extension 78 depart from motor shaft 76, so moment of torsion is delivered to an extension 78 from motor shaft 76 by a transmission mechanism or gear train.

Referring to Fig. 3, top vacuum subassembly 34 also has a cover cap box 106, and it and cover cap 44 form one and extend downwards from this cover cap.The impeller assembly 68 of bleeding is arranged among the cover cap box 106, and the impeller 74 of bleeding passes through cover cap box 106 with the air suction.Cover cap box 106 has several pillars 108, and they support a base plate 110, and this base plate 110 limits first elliptical aperture 112 and second than macropore 114.The outer peripheral face of cover cap box 106 when vacuum cleaner 30 is used for the dryness occasion, can center on cover cap 106 with a cloth filtration members 118, in case rubbish enters hole 114 round a foamed filter spare 116.Except using the foamed filter spare 116 and the cloth filtration members 118 of separating, also can adopt a kind of monoblock type filter cylinder in addition, it can be changed easily.

Also have a top pump assembly in the cover cap box 106, what it was total is represented by label 120.Pump installing rack 122 is connected in the impeller housing 70 of bleeding with this top pump assembly 120.Top pump assembly 120 comprises impeller of pump 104, a upper leaf hub 124 and a bottom impeller housing 126.Impeller of pump 104 is made by nylon 6, and upper leaf hub 124 and bottom impeller housing 126 are preferably made by acrylic nitrile-butadiene-benzene copolymer (" ABS ").Impeller of pump 104 has a threaded holder 128 and an a series of blade 130; Upper leaf hub 124 limits a hole 132; Bottom impeller housing 126 has an internal ring wall 134 and an external annulus 136.This internal ring wall 134 has a top 133, and this top comprises a side ring wall 135, and this side ring wall limits the hole 137 that fluid is communicated with between the inner chamber that allows impeller of pump 104 and internal ring wall 134.One screen 139 can be provided with across the inner chamber of internal ring wall 134, in case external substance passes hole 137 and has influence on impeller of pump 104.External annulus 136 outwards opens and forms one and opens part 138.Bottom impeller housing 126 is connected in upper leaf hub 124, and in the present embodiment, these two parts are by being threaded togather.The end of thread 98 of axle extension 78 extends through the hole 132 in the upper leaf hub 124, and engages with the screw thread holder 128 of impeller of pump 104.Therefore, impeller of pump 104 is suspended between upper leaf hub 124 and the bottom impeller housing 126, makes impeller of pump 104 free to rotate.The diameter in axle diameter of extension 78 and hole 132 is made into to make and produces a radial spacing between them and be about 0.762 centimetre annular gap 140.Because the tolerance that axle extension 78 and hole 132 are allowed in manufacture process, thus the spacing in gap 140 can+/-0.381 centimetre of fluctuation.Gap 140 blow-by can be had a mind to make, the outside of upper leaf hub 124 can be freely flow to from the inboard of upper leaf hub 124 to allow fluid.Because the cause in gap 140, therefore do not contact between axle extension 78 and the upper leaf hub 124.Contactlessly between these two parts prevent to produce frictional heat, therefore can reduce the needs that cool off at 140 places in the gap.Other effect of gap 140 will elaborate below.A baffle plate 142 that forms one with pump installing rack 122 is used to prevent that the 140 any liquid that splash enter the impeller assembly 68 of bleeding from the gap.

Top vacuum group 34 also accommodates a machinery and turn-offs and the Artificial Control assembly, and what it was total is represented by label 144.This machinery turn-offs and Artificial Control assembly 144 comprises switch activated assembly 60, a float lever 146 and a float 148.Switch activated assembly 60 is positioned at lid 48, and float 148 is held on the base plate 110 of cover cap box 106, and float lever 146 extends through cover cap 44 and motor casing 46, thereby the connection between switch activated assembly 60 and the float 148 is provided.

Referring to Fig. 6-9B, they more specifically show switch activated assembly 60.Should be understood that, that Fig. 6 (also having Figure 19 B-25B) does not illustrate the real cutaway view of switch activated assembly 60, but the view of the switch activated assembly 60 that each member of switch activated assembly provides is described for help.The decomposition of Fig. 7 there is shown the accurate alignment of some members of switch activated assembly 60.Switch activated assembly 60 comprises that a switch installing rack 150 (Fig. 6), a switch 152, a crank throw 154, a connection piece 156 (Fig. 6), a spring part 158 (Fig. 6) and user can engage actuated piece 62 (Fig. 6).In preferred embodiment, switch installing rack 150, crank throw 154 and connector 156 are preferably made by ABS, and the user can engage actuated piece 62 and preferably be made by nylon 6/6, and spring part 158 is preferably made by nylon.Switch installing rack 150 is made of two parts: a switch enclosure 160 and a switch cover 162 (Fig. 7).Form one with switch enclosure 160 and what extend internally is a switch enclosure dividing plate 164, one first switch support bar 166 and the crank throw dividing plate 168 with a crank throw block 170 above it.Outward extending from switch enclosure 160 is a pivot holder 172 and a flange connector 174 that limits a bolt hole 176 (Fig. 6).Switch cover 162 is wedge shape, and it has an inwall 178 and an outer wall 180 (Fig. 7) that tilts.Incision has a groove 182 in the outer wall 180.The bottom of groove 182 is limited by a flange connector 184, and this flange also limits a bolt hole 186.Form one with switch cover inwall 178 and what extend internally is a second switch cramp bar 188 and a crank throw pivot 190 (Fig. 6) above it.The end of crank throw pivot 190 is loaded in the pivot holder 172 of switch enclosure 160.With switch cover outer wall 180 form one and outward extending above it be a connection fastener 192.Switch cover 162 also limits a hole 194 that communicates with groove 182.Switch cover 162 is connected in switch enclosure 160 by pair of screws 193, thereby forms switch installing rack 150.Switch installing rack 150 and then be fixed in motor casing 46 (Fig. 3) by a pair of bolt 196 that extends through flange connector 174,184 and stretch into motor casing 46 again.

Referring to Fig. 8, switch 152 is electric microswitch of a standard, and it comprises a pivot hole 198, a support holes 200, one instantaneous actuated piece 202, a contained spring 204 and a pair of electrical terminal 206a, 206b.Switch 152 belongs to such type, and promptly switch normally is to be in the off-position, only just is in " opening " position when instantaneous actuated piece 202 is depressed.In case actuated piece 202 is released, contained spring 204 just makes switch 152 get back to normal off-position to extrapolation actuated piece 202.In preferred embodiment, can use C﹠amp by Connecticut State Willingford; The #TMCJG6SP0040Y type product that K/Unimax company produces.Switch 152 is loaded in the switch mounting box 150 securely, and supports by being arranged on first and second switch support bars 166,188 in the support holes 200 (Fig. 6) and the crank throw pivot 190 that is arranged in the pivot hole 198.

Referring to Fig. 7 and Fig. 8, crank throw 154 roughly takes the shape of the letter U, it has a back wall 208, pair of sidewalls 2 12a, 212b and the cross-over connection sealed yoke plate 214 between sidewall 212a, 212b, and wherein this back wall 208 is defined for a bar of admitting float lever 146 (Fig. 6) and admits extension 210 (Fig. 8).Two sidewall 212a, 212b all limit a pivot hole 216a, 216b, and a lug boss 218 is from sidewall 212a stretch out (Fig. 7).Crank throw 154 is arranged in the switch installing rack 150, and sidewall 212a, 212b are on the opposite side that is arranged on switch 152, and sidewall 212b is separated by crank throw dividing plate 168 and switch enclosure 160, and sealed yoke plate 214 is arranged on switch 152 times (Fig. 6).Equally, crank throw pivot 190 extends through pivot hole 216a, 216b, and lug boss 218 extends through the hole 194 (Fig. 6) in the switch cover 162.As being shown specifically among Fig. 8, sealed yoke plate 214 has a chamfered portion 220 and a locked portions 222, and wherein this locked portions 222 intersects at a critical point CP with this chamfered portion 220.In preferred embodiment, the angle between chamfered portion 220 and the locked portions 222 is about 158 degree, but its size also can be different from this value, and this is conspicuous for those skilled in the art.Angle between chamfered portion 220 and the locked portions 222 is such, and promptly after crank throw 154 rotated fully in the counterclockwise direction, as shown in Figure 20 A, chamfered portion 220 was pasting this bottom surface with the bottom surface of switch 152 with flushing.

Referring to Fig. 6-9B, connector 156 limits an elongated slot 224 and lug boss grooves 226, and outward extending from connector 156 is a spring part holder 228.Connection fastener 192 is arranged in the elongated slot 224, and connector 156 is connected in switch installing rack 150.The elongated shape of groove 224 allows connector 156 to slide up and down with respect to switch installing rack 150.In addition, the lug boss 218 of crank throw 154 extends through lug boss groove 226 (Fig. 6).

Referring to Fig. 6,9A and 9B, spring part 158 comprises an actuator lever 230, a connecting piece 232, a tongue 234, a upper spring 236, a lower spring 238 and an offside hurdle 240 (Fig. 9).Brace 232 links together actuator lever 230, tongue 234, upper spring 236, lower spring 238 and side hurdle 240.Upper spring 236 and lower spring 238 all from brace 232 outwards and with respect to tongue 234 backward towards the end bending (Fig. 6) of actuator lever 230.Upper spring 236 and lower spring 238 all are arranged in the groove 242 that is formed in the lid 48, and actuator lever 230 extends through this groove 242.Upper spring 236 engages with the apical margin 244 of groove 242, thereby produces first load, and simultaneously, lower spring 238 engages with the root edge 246 of groove 242, thereby produces second load.In preferred embodiment, first load and second load are isoequilibriums mutually, thereby when the user can engage actuated piece 62 and is not operated, make this user can engage the central authorities that actuated piece 62 is positioned at groove 242.On the other hand, tongue 234 is arranged on (Fig. 6) in the spring part holder 228.But the user can engage actuated piece 62 has a bonding part 248 that is connected in a hollow stem connector 250.This hollow stem connector 250 extends internally by lid groove 242, and is provided with around the actuator lever 230 of spring part 158.But the user can engage the outside that the bonding part 248 of actuated piece 62 is arranged on lid 48, and the interior side engagement of side hurdle 240 and lid 48 cooperates (Fig. 9) closely thereby form between spring part 158 and lid 48.

Referring to Fig. 3, float 148 is a hollow again, and it can be made by any suitable material such as co-polymer polypropylene.Float 148 limits a bar holder 252, and float lever 146 can be fixed in wherein.In preferred embodiment, float lever 146 along one free, the linear pattern of not sealing up and down route move.But, also can imagine other embodiment, wherein float lever 146 is to move along linear route up and down in the passage of a sealing or gathering sill.

Referring to Fig. 3, top vacuum subassembly 34 also is surrounded by the first half ones 254 (Figure 16) of an exit portion 256.Referring to Figure 10 and 11, the first half ones 254 of this exit portion 256 comprise a housing 258, ball valve 58 and a bend pipe 260.Housing 258 limits pump discharge 56, a ball seat 262 and a bend pipe chamber 264.Housing 258 also comprises the threaded portion 268 that the outside around housing 258 is provided with from housing 258 downward inlets 266 and that extend.Inlet 266 limits a hole 270 and a check valve (check valve) seat 271.One check valve 272 is arranged in this unidirectional valve seat 271, and this check valve can prevent from 266 to spill by entering the mouth from the air of bend pipe 260 or pump discharge 56 or liquid.Ball valve 58 comprises a knob 274, and this knob has three projections (dog) 276a-c, and it is connected in has a ball 278 passage that penetrates 280, that be used to open and close valve 58.Knob 274 is arranged on the outside of housing 258, and ball 278 is positioned at the ball seat 262 of housing 258.Can between ball 278 and housing 258, form sealing at the pair of O type circle 282,283 between ball 278 and the housing 258.Similarly, can between knob 274 and housing 258, form sealing at the O type circle 285 between knob 274 and the housing 258.Bend pipe 260 limits a passage 284 and an adapter holder 286.With bend pipe 260 form one and outward extending above it be a case cover 288, have a sealing flange 290 and an a pair of connector 294 (Figure 11) of an O type circle 292.Bend pipe 260 utilizes screw 295 to be fixed in the bend pipe chamber 264 interior (Figure 11) of housing 258, makes bend pipe 260 against O type circle 282, thereby forms sealing with ball 278, and passage 284 is communicated with ball 278.In addition, O type circle 292 forms sealing between bend pipe 260 and housing 258, and case cover 288 covers housing 258.(Fig. 3) among the motor casing 46 is fixed in by a pair of screw 297 of twisting connector 294 and being screwed into a pair of lug boss 296 in the motor casing 46 in the first half ones 254 of exit portion 256.Housing 258 extends through the hole 298 in the motor casing 46, and adapter holder 286 extends through the hole 300 (Fig. 3) in the cover cap 44.By a connection piece 304 being fixed in the threaded portion 268 of housing 258, thereby a flexible pipe 302 can be connected in housing 258 (Figure 16).Connector 304 can be the type of gardening with the sort of fillet of screw on the hose end.

The projection 276a-c of knob 274 is used to indicate the angle position of passage 280 in housing 258.As shown in Figure 12 A, projection 276a aligns with pump discharge 56, and ball 278 stops fluid to flow to pump discharge 56 or flow to bend pipe from pump discharge from bend pipe 260.Because passage 280 is perpendicular to passage 284, and ball 278 and housing 258 formation sealings, therefore can prevent that in this position fluid from flowing through ball.

When projection 276b aligns with pump discharge 56, shown in Figure 12 B, passage 280 and passage 284 angles at 45, thereby only allow segment fluid flow to flow to pump discharge 56 from bend pipe 260.And as can see from Figure 10, when ball 278 was in this position, check valve 272 allowed air 266 to enter and flow into bend pipe 260 by entering the mouth.In Figure 10, do not cut ball 278 open, so that can see clearlyer by 266 paths that flow to bend pipe 260 that enter the mouth for air.Arrow among Figure 10 and 11 represents that all air is by 266 the glide paths after entering that enter the mouth.By enter the mouth 266 enter after, air flows through check valve 272, is centered around ball 278 outsides then, passes passage 280 and flow channel 284.Because the opposed end of ball 278 has been removed to form passage 280, therefore air can be other by ball 278 on this position.Equally, on this position, ball 278 can not form sealing completely with housing 258.

When projection 276c alignd with pump discharge 56, shown in Figure 12 C, passage 280 alignd with passage 284, thereby allows whole fluids to flow to pump discharge 56 from bend pipe.

Figure 13 shows a pump adapter assembly 306, and it comprises a pump joint 308, one the second half one 316 of inlet tube 310, a Differential Pressure Unit 312, a conduit 314 and exit portion 256 once.Pump joint 308 is preferably made by ABS, it have a upper inlet pipe 318 and around the end half one of this upper inlet pipe 318 and with an external annulus 320 of its formation one.Upper inlet pipe 318 and external annulus 320 all have an O type circle 322,324, and they are arranged at respectively in the corresponding groove 326,328 that is formed in this two component upper ends.At an end place relative with O type circle 322, upper inlet pipe 318 is inserted in the lower inlet pipe 310.Outward extending from external annulus 320 is pair of flanges 330,332.Upper flange 330 ovalizes, lower flange 332 is radially, and the maximum gauge of upper flange 330 is less than the diameter of lower flange 332.External annulus 320 also is connected in a pump joint 334 of the second half ones 316 of exit portion 256, and is communicated with its fluid.

Can be clear that from Figure 14,15A, 15B and 15C Differential Pressure Unit 312 has a ducted body 336, this ducted body forms a chamber that holds ball 340 by a base plate 338 sealings.Ducted body 336 has a hole 342, and ball 340 can be arranged at wherein (Figure 15 C).Ducted body 336 also has upwardly extending joint 344,346 (Figure 15 A), their limiting holes 348,350 (Figure 15 A), and be respectively applied for connection lower inlet pipe 310 and conduit 314.Ducted body 336 is connected with a top board 352 by screw 353.Can be clear that from Figure 14 top board has the hole 354,356 that supplies inlet tube 310 and conduit 314 to pass through respectively.Top board 352 and base plate 338 encase a filtration members 358, guarantee also to pass through this filtration members 358 by any liquid that hole 342 flow in the ducted body 336.

Return Figure 13 now, the second half ones 316 of exit portion 256 comprise pump joint 334, a flexible pipe 360 and a rotatable connector 362.One end of pump joint 334 is connected in the external annulus 320 of pump joint 308, and is such as described above, and its other end is connected in flexible pipe 360.The other end of flexible pipe 360 is connected in rotatable connector 362.Pump joint 334 has a check valve 364 and a pipe joint 366.This check valve 364 allows fluid from pump joint 308 inflow pump joints 334, but check valve 364 does not allow fluid from pump joint 334 inflow pump joints 308.One end of conduit 314 connects the pipe joint 366 of pump joint 334.Pipe joint 366 is arranged on the outlet side of check valve 364, so that any fluid that flows downward by flexible pipe 360 can inflow catheter 314 and do not blocked by check valve 364.The other end of conduit 314 embeds the joint 346 in the ducted body 336.Between the conduit two ends, a clip 368 is against lower inlet pipe 310 with conduit 314 folders.

Referring to Figure 26, there is shown another embodiment of the present invention.Components and parts similar to the aforementioned embodiment are represented by identical label.In this embodiment, check valve 364 has tip 365, and is pressed into a base 367 by a spring 369.Total during by the represented pump of label 372 (operation about this pump will describe in detail hereinafter) in starting one, the interaction of the tip 365 of check valve 364, spring 369 and base 367 forms reliable (positive) and seals between pump joint 308 and pump joint 334.Among lower inlet pipe 310, be provided with a reinforced pipe 371,, help to make Differential Pressure Unit 312 fixing on the throne so that when vacuum cleaner 30 work.In addition, in this embodiment, removed the clip 368 that conduit 314 folder is against lower inlet pipe 310, the substitute is conduit 314 is twined round lower inlet pipe 310 1 circles or multi-turn ground, to prevent conduit 314 freely-movable in casing 32.Make conduit 314 coil and do not use clip 368 can reduce the tension force that is produced between conduit 314 and the lower inlet pipe 310, and allow conduit 314 when contraction or expansion, can move with respect to lower inlet pipe 310 round lower inlet pipe 310.In this embodiment, filtration members 358 is replaced by a screen 373, and this screen can be made of plastics.Because it is frequent blocked that screen 373 can not resemble filtration members 358, therefore when the big particle matter of suction, this screen 373 is than suitable.Screen 139 across internal ring wall 134 inner chambers is removed in this embodiment, and the side ring wall 135 of limiting hole 137 extends to form a limited fluid passage 375 downwards.The diameter that this limited fluid passage 375 reduces helps to prevent that customer impact is to impeller of pump when stopping transport or work.In this embodiment, the inlet 266 of housing 258 no longer is defined for a unidirectional valve seat 271 of admitting check valve 272.On the contrary, in this embodiment, in inlet 266, be provided with one and keep circle 377, promptly one packing ring, to play the effect of the unidirectional valve seat 271 that is used for check valve 272.

Vacuum cleaner 30 can two kinds of pattern work: dryness suction mode and moist suction mode.Fig. 3 represents that vacuum cleaner 30 is in the dryness pattern configurations.Ball valve 58 is in the closed position to keep the pressure reduction in the casing 32, and cloth filtration members 118 is in around the appropriate location of cover cap box 106 and enters hole 114 to prevent rubbish.For the vacuum cleaner 30 with arbitrary embodiment is converted to moist pattern work, can remove cloth filtration members 118, and pump adapter assembly 306 (Figure 16 and 26) are installed.For pump adapter assembly 306 being installed and being formed pump 372, the user can be inserted into pump joint 308 in the bottom impeller housing 126 of top pump assembly 120 by the hole in the cover cap box plate 110 112,114 earlier.The part 138 of opening of top pump assembly 120 is convenient to pump adapter assembly 306 is inserted in the bottom impeller housing 126.During insertion, upper inlet pipe 318 slides in the internal ring wall 134 of bottom impeller housing 126, and O type circle 322 forms sealing with internal ring wall 134.Screen 139 (Figure 16) or the side ring wall 135 (Figure 26) that extends are arranged between upper inlet pipe 318 and the hole 137.Similarly, the external annulus 320 of pump joint 308 slides in the external annulus 136 of bottom impeller housing 126, and O type circle 324 forms sealing with external annulus 136.At last, radial flange 332 is arranged in hole 114.

For pump adapter assembly 306 is fixed in cover cap box 106, the user can turn round pump adapter assembly 306 and turn 90 degrees, and causes pump joint 308 also to reverse and oval flange 330 is contacted with the base plate 110 of cover cap box 106.In order to finish being connected of pump adapter assembly 306 and top vacuum subassembly 34, the user can handle rotatable connector 362 and be inserted into adapter holder 286.The pump of being finished 372 has a starting chamber 374 and a drain tank 376.This starting chamber 374 is combined by upper inlet pipe 318, O type circle 322, internal ring wall 134 and impeller of pump 104.This drain tank 376 is combined by the external annulus 320 of external annulus 136, O type circle 324 and the pump joint 308 of bottom impeller housing 126.The size of pump 372 each several parts depends on the flow rate that pump 372 is required.In addition, the power of motor 93 also can influence the size and the design of the many members that comprise impeller of pump 104.

If the user need filter out the larger particles material in the material in the vacuum cleaner 30 that sucks arbitrary embodiment, then can collect mesh bag 370 pack into (Figure 16) in the casing 32 with one.(in the embodiment shown in Figure 26, also can adopt a collection mesh bag 370).Referring to Figure 17, Figure 18 A and Figure 18 B, this collection mesh bag 370 comprises a filtration fraction 378, a sealing detachable cap 380 and an inlet collar 382.Filtration fraction 378 comprises anterior 384 and one rear portion 386.Three limit 388a-c at front portion 384 and rear portion 386 permanently link together.Sealing detachable cap 380 is elongated portions at the rear portion 386 of filtration fraction 378, and it is arranged on the opposite on the 4th limit 389 of front portion 384, thereby forms an opening 391.The size of the netted hole of filtration fraction 378 preferably is about 0.5 millimeter * 1 millimeter.Filtration fraction 378 is made by nylon or other firm and water-fast material.Total rectangular of filtration fraction 378, its size are formed into that (Figure 16) makes the bottom of filtration fraction 378 just touch the bottom of casing 32 after installation.The inlet collar 382 comprises 393a of first and second portion 393b (Figure 18 A and 18B).The 393a of first of the inlet collar 382 is rigidity stiffeners, and it can be made by rigid plastics, and it limits a hole 397, and is positioned at the central authorities (Figure 18 B) of sealing detachable cap 380 outer surfaces 395.The second portion 393b of the inlet collar 382 is connected in the center of top of the front portion 384 of filtration fraction 378, and it limits a hole 399 (Figure 18 A).The second portion 393b of the inlet collar 382 has can be by a soft lining 392 of the viscosity that elastomeric material is made and the rigidity reinforced portion 392 that also can be made by rigid plastics, and lining 392 is sandwiched between the front portion 384 of reinforced portion 394 and filtration fraction 378.Collect mesh bag 370 in order to install, the user can will seal detachable cap 380 imbrication on the four edges 389 of hole 391 and anterior 384 earlier.Then, the user can place casing 32 with collecting mesh bag 370, and will collect mesh bag 370 and spread on the inner peripheral surface that is around in casing 32 (Figure 16).Then, the user can make the hole 397,399 of the inlet collar 382 align with the inlet 40 of casing 32, and the collar 382 that will enter the mouth slides on the inlet 40.Along with the inlet collar 382 is pushed on the inlet 40, soft lining 392 will outwards open.In case the inlet collar 382 is in place, the diameter of lining 392 little to and its tack of materials even as big as the inlet of clamping securely 40.At last, in order to finish the preparation that makes vacuum cleaner 30 be used for moist mode of operation, the user can be inserted into the vacuum subassembly 34/ pump adapter assembly 306 of combination in the casing 32, with fastening 52 with a bolt or latch cover cap 44 is fixed in casing 32 (Figure 16) as mentioned above then.

In order to make vacuum cleaner 30 with moist mode of operation work (operation of switch activated assembly 60 is identical with the operation of dry working pattern), the user can be transformed into " opening " position and rotary electric machine 93 with switch 152 earlier.Switch activated assembly 60 is former before this in the off-position, shown in Figure 19 A and 19B.On the off-position, the sealed yoke plate 214 of crank throw 154 does not engage with instantaneous actuated piece 202, and the user can engage actuated piece 62 is in groove 242 under the equipollent balance of upper spring 236 and lower spring 238 central authorities.Shown in Figure 20 A and 20B, for rotary electric machine 93, but the user can engage on the bonding part 248 of actuated piece 62 the user and presses up.Power up is delivered to spring part 158 and is delivered to connector 156.The power up that acts on the spring part 158 is pressed against the apical margin 244 of groove 242 with upper spring 236, thereby produces a load.The power up that acts on the connector 156 moves up lug boss groove 226.Along with lug boss groove 226 moves up, lug boss groove 226 engages with the lug boss 218 of crank throw 154.Lug boss groove 226 moves on constantly lug boss 218 is moved up, and cause crank throw 154 in the counterclockwise direction (as seeing among Figure 20 A and the B) rotate around crank throw pivot 190 (Fig. 6).The top in the hole 194 in the switch cover 162 can prevent the user, and upwards La Detai is far away with lug boss 218, is upwards pressed to such an extent that too far prevent the damage possible to switch 152 on switch 152 by preventing crank throw 154.The rotating counterclockwise of crank throw 154 is moved into instantaneous actuated piece 202 chamfered portion 220 and engages, thereby instantaneous actuated piece 202 is pressed into switch 152.Rotating counterclockwise that crank throw 154 continues makes chamfered portion 220 along instantaneous actuated piece lateral sliding.Finally, instantaneous actuated piece 202 is by critical point CP, and contacts with the locked portions 222 of sealed yoke plate 214.At this moment, instantaneous actuated piece 202 no longer hinders rotating counterclockwise of crank throw 154; On the contrary, by pushing downwards on sealed yoke plate 214, instantaneous actuated piece 202 is against switch 152 with crank throw 154 locks, makes instantaneous actuated piece 202 keep being depressed (Figure 20 A and 20B).The instantaneous actuated piece 202 that is depressed makes switch 152 be transformed into " opening " position, and then is motor 93 power supplies.Can engage actuated piece 62 in case the user unclamps the user, the load that is created on the upper spring 236 comes loose, and spring part 158 is reused the family can engage the central authorities (Figure 21 A and 21B) that actuated piece 62 is in groove 242.

The motor 93 of energising makes bleed impeller 74 and impeller of pump 104 rotations simultaneously by the combination (Figure 16 and Figure 26) of 76/ extension 78 of motor shaft.The pressure that the impeller 74 of bleeding that rotates reduces in the casing 32 forms vacuum.This vacuum 40 is drawn into air, liquid and/or other material in the casing 32 by entering the mouth.Along with material 40 is inhaled into casing 32 by entering the mouth, collects mesh bag 370 and filter out king-sized particulate matter, thereby reduce the possibility that pump 372 blocks.Even pump 372 is not used, collect mesh bag 370 and still can be used to easily the larger particles material in the liquid in the casing 32 be leached, thereby liquid is poured into or when entering drainpipe, the larger particles material can not block drainpipe in casing 32.The air that is inhaled into casing 32 enters motor casing 46 through foamed filter spare 116, cover cap box 106, finally is discharged from air discharge duct 54 (Fig. 1).

Pump 372 in most of the cases is a kind of self-starting pump.Referring to Figure 15 C and 16, when ball 340 is arranged in hole 342, because atmospheric pressure air down is trapped between the interior liquid of the ball valve 58 (Figure 12 A) of closing and the ducted body that is collected in Differential Pressure Unit 312 336, thus in passage 284, flexible pipe 360 and conduit 314 formation one high pressure system.Simultaneously, because the gap 140 in the upper leaf hub 124 makes inlet tube 310,318 communicate with the low-pressure area that is produced by the impeller 74 of bleeding, thereby in inlet tube 310,318, form a low pressure system.Being trapped in low-pressure air in the inlet tube 310,318 can not produce and be enough to liquid collected in the ducted body 336 is upwards drawn and the head of priming pump 372 by inlet tube 310,318.Check valve 364 plays the effect that the high pressure system in the formed low pressure system and passage 284, flexible pipe 360 and conduit 314 is separated in inlet tube 310,318 that makes.High pressure system and low pressure system one work, by high pressure (being atmospheric pressure basically) air the liquid in the ducted body 336 is upwards pushed away inlet tube 310,318 and entered starting chamber 374, low-pressure air is moved and priming pump 372, thereby form a pressure differential on the liquid in ducted body 336.

Then, the pump 372 that is started can go out casing 32 with collected liquid pump pressure.The liquid that is collected in the casing 32 will flow into ducted body 336, flow through inlet tube 310,318 (and by reinforced pipe 371 by filtration members 358 (Figure 16) or screen 373 (Figure 26) from casing 32, if words on the throne), enter starting chamber 374, up to impeller of pump 104.Have some can spill in this liquid by gap 140, but most of liquid can flow into drain tank 376 downwards, through the check valve 364 inlet/outlet part 256 of going forward side by side.O type circle 324 will prevent between the interface of external annulus 136 of the external annulus 320 of pump joint 308 and bottom impeller housing 126 any leak of liquid is arranged.In case be in the exit portion 256, liquid will flow through pump joint 334, flexible pipe 360, rotatable connector 362, passage 284, passage 280, and arrive a draining source (not shown) by flexible pipe 302 (if connection) efflux pump outlet 56.In case started, user's rotatable knob 274 so that projection 276c aligns with pump discharge 56, so just makes passage 280 align with passage 284, thereby allows liquid to discharge (Figure 12 C) with the flow rate of maximum.This self-starting effect of the present invention is the aspect of a uniqueness of this design.

If make pump 372 self-runningly to talk about for some reason, then the user can align (Figure 12 B) projection 276b by knob 274 being turned to its position of 45 ° with pump discharge 56, thus starting system.The higher relatively extraneous air of pressure under atmospheric pressure will enter inlet 266 (Figure 10 and 11), and be full of passage 284, flexible pipe 360 and conduit 314, resemble high pressure system as described above thereby form one.This high pressure system will produce a pressure differential on the liquid in the ducted body 336, and priming pump 372 in the same manner as described above.

Another unique design characteristics of the present invention are, pump 372 starting in a single day, and it loses its starting state with regard to being not easy because of the degradation of O type circle 322.When pump 372 outwardly during pump pressure liquid, because starting chamber 374 and drain tank 376 all have been full of liquid, the both sides that therefore constitute the O type circle 322 that seals between the internal ring wall 134 of upper inlet pipe 318 and bottom impeller housing 126 are all centered on by liquid.Equally, even O type circle 322 quality begin variation, air also can't enter starting chamber 374 and make pump 372 lose its starting state.But pump 372 operating efficiency in this state is lower.

Referring to Figure 16 and Figure 23-25, if in vacuum draw, it is too high that the liquid height in the casing 32 becomes, and then machinery shutoff and Artificial Control assembly 144 will automatically shut down motor 93.When the liquid in the casing 32 reached the height of float 148, liquid upwards pushed away float 148.Simultaneously, float 148 is upwards shifted float lever 146 onto in the bar admittance extension 210 of crank throw 154.Finally, the liquid of rising reaches height that are enough to produce a upward force and make float lever 146 clockwise promotion crank throws 154, and crank throw 154 and switch 152 are broken away from.In case crank throw 154 breaks away from switch 152, instantaneous actuated piece 202 can be because of the outside bullet of the power of contained spring 204, thereby switch 152 is transformed into off-position (Figure 24 A and 24B), and this just makes motor 93 stop, thereby the rotation of stop to bleed impeller 74 and impeller of pump 104.Float 148 should be set on the enough low height, just can be switched off before the height of impeller 74 so that motor 93 reaches to begin to enter to bleed at liquid.In case motor 93 is switched off, the user has two selections: both removable top vacuum subassembly 34 and with the hand casing 32 of turning, also can walk around the float switching off device, by Artificial Control float switching off device mechanically.

For the casing 32 of turning with hand, the user can unclamp door bolt 52 and mention top vacuum subassembly 34.When mentioning top vacuum subassembly 34, motor 93 can unexpectedly not connected power supply.The present invention has many design features that combine with it so that crank throw 154 can not engage with instantaneous actuated piece 202 again because like this can be when top vacuum subassembly 34 be lifted from casing 32, cause motor 93 to connect power supplys.The first, crank throw 154 does not link to each other with float lever 146 intentionally.If crank throw 154 forms one with float lever 146, then when mentioning top vacuum subassembly 34, float lever 146 can make crank throw 154 counterclockwise rotate, and may engage again with instantaneous actuated piece 202.The second, the outward force of the contained spring 204 of switch 152 is enough to prevent that crank throw is when top vacuum subassembly 34 is raised, depress instantaneous actuated piece 202 because of carelessness.In case top vacuum subassembly 34 is removed, the user can mention casing 32, takes out and collects mesh bag 370, and pour the material in the casing 32 into discharge outlet.

Except toppling over the material in the casing 32, the user also can walk around float switching off device (Figure 25 A and 25B) by engaging the user upwards to push away on the actuated piece 62.As mentioned above, the user can engage actuated piece 62 on move lug boss 218 moved up, this rotates crank throw 154 in the counterclockwise direction.Crank throw 154 rotates and contacts once more and it is depressed with instantaneous actuated piece 202.In case instantaneous actuated piece 202 is depressed, motor 93 is got back to open mode again, and the user can continue the liquid pump pressure is gone out casing 32.Yet in this case, the user must keep the user can engage actuated piece upwards, is gone out casing 32 and makes liquid height below the height of motor switching off device by pump pressure up to the liquid of q.s; Otherwise liquid will continue float 148 is upwards pushed away, and this can make crank throw 154 rotate along clockwise direction once more and close power machine 93.In case user's pump pressure has gone out the liquid of q.s and made liquid level in the casing 32 below motor switching off device height, when the user unclamps the user can engage actuated piece 62 time, motor 93 will stay open state, and the user can recover the operate as normal of vacuum cleaner 30.

When the user has finished the suction of vacuum cleaner 30 or pump pressure operation, can turn-off vacuum cleaner 30 (Figure 22 A and 22B) by can engage on the actuated piece 62 pushing downwards the user.Downward power is delivered to spring part 158 and is delivered to connector 156.The downward force that acts on the spring part 158 is pressed against the root edge 246 of groove 242 with lower spring 238, thereby produces a load.The downward force that acts on the connector 156 moves down lug boss groove 226.Along with lug boss groove 226 moves down, lug boss groove 226 engages with the lug boss 218 of crank throw 154.The continuing to move down of lug boss groove 226 moves down lug boss 218, and makes crank throw 154 rotate (Fig. 6) around crank throw pivot 190 along clockwise direction.The bottom in the hole 194 in the switch cover 162 and crank throw block 170 prevent that crank throw 154 from moving too far backward.Clockwise rotating of crank throw 154 makes sealed yoke plate 214 break away from instantaneous actuated piece 202.Equally, the contained spring 204 of switch 152 with instantaneous actuated piece to extrapolation, thereby switch 152 is transformed into the off-position, and then close power machine 93.Can engage actuated piece 62 in case the user unclamps the user, the load that results from the lower spring 238 is removed, and spring part 158 is reused the family can engage the central authorities (Figure 19 A and 19B) that actuated piece 62 is in groove 242.

Vacuum cleaner of the present invention has and significantly is better than existing vacuum cleaner part.By providing a pump to extract liquid out casing, liquid can be poured at an easy rate into the drainpipe of various height.Come driven pump impeller with bleed same motor of impeller of driving, this compares with the design that needs one are used for the separate electrical motor of pump pressure, has significantly reduced the cost of vacuum cleaner.By pump directly being arranged in casing below the impeller of bleeding, impeller of pump can simply and effectively be driven by the same rotating shaft that is connected in the impeller of bleeding.The dismoutability of pump adapter assembly makes very high efficient when vacuum cleaner is used for dry matter.

Machinery of the present invention turn-offs and the Artificial Control assembly also provides tangible advantage.When the liquid level in the vacuum cleaner casing was too high, this machinery turn-offed and the Artificial Control assembly can automatically shut down motor.And this assembly allows user that the machinery of vacuum cleaner is turn-offed to bypass and continue the liquid pump pressure is gone out casing, and need not the user mentions or the inclination casing is toppled over.In addition, starting component of the present invention provides a kind of starting system of simple, its cost-effective easy to use.

Above detailed description only provides for the ease of understanding, and for technical staff in the art, its multiple modification is conspicuous, thereby this should be interpreted as unnecessary restriction.

Claims

1. vacuum cleaner, it comprises:

Constitute a chamber and have a casing of an import that is used to admit liquid substance;

With one of the described chamber atmosphere circulation impeller of bleeding;

One pump, the inlet of described pump and described chamber in fluid communication, described pump also has an inner pump chamber, and described inner pump chamber has first hole that is connected in described pump intake and second hole of circulating with described chamber atmosphere;

A starting device that is arranged in the chamber and is communicated with the pump intake fluid; And

Thereby selectively form the device that a pressure reduction starts described pump on the liquid in described starting device.

2. vacuum cleaner as claimed in claim 1 is characterized in that, described formation device has a valve that is connected in described starting device.

3. vacuum cleaner as claimed in claim 1 is characterized in that described starting device has a main body, and described main body has a roof, is provided with a hole in described roof, and described main body also has a ball that is positioned at main body, also can engages with described hole.

4. vacuum cleaner as claimed in claim 1 is characterized in that described starting device has a main body, and described main body has a diapire, is provided with a hole in described diapire, and described main body also has a ball that is positioned at main body, also can engages with described hole.

5. vacuum cleaner as claimed in claim 1 is characterized in that it comprises:

Be connected in a pump discharge pipe of described pump;

One end is connected in an inlet tube of described pump intake;

Be arranged at described bottom half and be connected in a ducted body of an opposite end of described inlet tube;

Be positioned on the described pump discharge pipe, have a valve that is used to discharge by an outlet of the liquid of pump institute pump pressure;

Conduit from described pump discharge pipe to described ducted body;

Wherein, open described valve and make atmospheric pressure feed described outlet and conduit and form a pressure reduction on the liquid in described ducted body, thereby start described pump.

6. vacuum cleaner as claimed in claim 5 is characterized in that it comprises:

Be positioned at an air intake of described valve; And

Be positioned at a mechanism of described valve, wherein, described valve has primary importance, and air flows through described air intake on this position.

7. vacuum cleaner as claimed in claim 6 is characterized in that,

Described mechanism has the second place, and on this position, described air intake is closed, and the outlet of described valve is closed; And

Described mechanism has the 3rd position, and on this position, described air intake is closed, and the outlet of described valve is opened.

8. vacuum cleaner as claimed in claim 5 is characterized in that, described ducted body has a hole and a valve member, and the fluid in the described casing enters ducted body by described hole, and described valve member is closed described hole.

9. vacuum cleaner as claimed in claim 8 is characterized in that, described valve member is a ball that can engage with described hole.

10. vacuum cleaner, it comprises:

Has a casing that enters the mouth that is used to admit liquid substance;

With one of the described casing circulation of air impeller of bleeding;

Liquid is discharged a pump of described casing;

Be positioned at described casing, be used for a chamber of receiving fluids, wherein, described chamber has first hole that is communicated with described pump fluid and second hole that is communicated with atmospheric air by an exit portion; And

One valve that place described exit portion, also can between an open position and a closed position, move, when being in described open position, described valve keeps second hole of described chamber and the air communication between the atmosphere, when being in described closed position, described valve blocks second hole of described chamber and the air communication between the atmosphere.

11. vacuum cleaner as claimed in claim 10 is characterized in that, it comprises:

The inlet tube that first hole of described chamber is linked to each other with described pump; And

The conduit that second hole of described chamber is linked to each other with described valve.

12. vacuum cleaner as claimed in claim 10 is characterized in that,

Described chamber is sealed by a ducted body;

Described ducted body has a hole, the internal flow fluid of described hole and described casing, and liquid enters chamber by described hole; And

The hole of described ducted body can be closed in case liquid spills by it.