CN207025945U - Handheld high-voltage cleaning machine - Google Patents
Handheld high-voltage cleaning machine Download PDFInfo
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- CN207025945U CN207025945U CN201720503439.5U CN201720503439U CN207025945U CN 207025945 U CN207025945 U CN 207025945U CN 201720503439 U CN201720503439 U CN 201720503439U CN 207025945 U CN207025945 U CN 207025945U
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- plunger
- driving structure
- cleaning machine
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Abstract
A kind of Handheld high-voltage cleaning machine is the utility model is related to, including：Housing；Driving structure, in the housing；Plunger pump, in the housing, the plunger pump includes two or more piston structures, each piston structure includes cylinder body and the plunger in the cylinder body, and the driving structure is connected to each plunger to drive each plunger linear reciprocating motion in the corresponding cylinder body.Above-mentioned Handheld high-voltage cleaning machine, due to provided with the plunger pump for including two or more piston structures, two or more plungers can be respectively limited by corresponding cylinder body and the linear reciprocating motion in cylinder body, so as to compared in the prior art using the plunger pump only with a plunger, the Handheld high-voltage cleaning machine has larger water flow, so as to have higher operating efficiency.
Description
Technical field
Field of power tools is the utility model is related to, more particularly to a kind of Handheld high-voltage cleaning machine.
Background technology
With the development and the progress of science and technology of society, jetting machine more and more widely should as a kind of cleaning device
For in the life of people, great convenience to be brought for the life of people.Jetting machine can be used for cleaning automobile, glass door
Window, garden road etc., there is highly effective and safe, characteristic easy to use.Jetting machine is typically provided with the pump housing to export water under high pressure
Stream.
But at present, it is clear to have impact on the Handheld high-voltage provided with the pump housing due to fault of construction for the pump housing in jetting machine
The water flow of washing machine, the operating efficiency of jetting machine is reduced, inconvenience is brought for the production and living of people.
Utility model content
Based on this, it is necessary to for the less problem of jetting machine water flow, there is provided a kind of water flow is larger
Handheld high-voltage cleaning machine.
A kind of Handheld high-voltage cleaning machine, including：
Housing；
Driving structure, in the housing；And
Plunger pump, in the housing, the plunger pump includes two or more piston structures, each described
Piston structure includes cylinder body and the plunger in the cylinder body, and the driving structure is connected to each plunger to drive
Each plunger linear reciprocating motion in the corresponding cylinder body.
Above-mentioned Handheld high-voltage cleaning machine, due to provided with the plunger pump for including two or more piston structures, two
Individual or more than two plungers can be respectively limited by corresponding cylinder body and the linear reciprocating motion in cylinder body, so as to compared to existing
Have in technology has larger water flow using the plunger pump only with a plunger, the Handheld high-voltage cleaning machine, so as to
With higher operating efficiency.
In one of the embodiments, the plunger pump also includes connecting the driving structure and the transmission of the plunger
Mechanism, the driving structure drive the relatively described cylinder body of two or more plungers to transport by the transmission mechanism
It is dynamic.
In one of the embodiments, the transmission mechanism includes eccentric shaft, and the plunger bushing is located at the eccentric shaft, institute
Plunger straight reciprocating motion in the cylinder body can be driven under the driving of the driving structure by stating eccentric shaft.
In one of the embodiments, the plunger is two, and the eccentric shaft is connected to two plungers
Middle part, and two plungers are symmetricly set in both ends or interval that the eccentric shaft is located remotely from each other located at the eccentric shaft wherein
One end.
In one of the embodiments, the cylinder body includes the high-pressure chamber positioned at the plunger both ends, and the plunger can
Straight reciprocating motion is with alternately two high-pressure chamber of extruding in the cylinder body.
In one of the embodiments, the eccentric shaft include first end and located at the side end face of first end one second
End, the central axis at second end are set with the central axis skew of the first end, and the plunger is matched somebody with somebody with second end
Close.
In one of the embodiments, the transmission mechanism also include connecting the output shaft of the driving structure with it is described partially
The bevel gear set of mandrel, the bevel gear set include a first bevel gear for being sheathed on the output shaft and two and described the
The second bevel gear of one bevel gear engagement, the central axis upright of the second bevel gear is in the central shaft of the first bevel gear
Line, two bevel gears are affixed to drive the eccentric shaft turns by connecting shaft and the eccentric shaft.
In one of the embodiments, the transmission mechanism includes swash plate actuator, the swash plate actuator and the biography
Moving axis is obliquely installed with the central axial direction for merging relatively described power transmission shaft, two or more plungers wherein one
End is held in the end face of the swash plate actuator away from the driving structure respectively.
In one of the embodiments, the transmission mechanism includes eccentric wheel, two or more plungers one
End is connected to the side wall of the eccentric wheel.
In one of the embodiments, the driving structure is linear electric motors, and the transmission mechanism includes drive rod, described
Drive rod one end is connected to the linear electric motors, and the other end is connected to the plunger to drive the piston reciprocation to move.
In one of the embodiments, the transmission mechanism includes first connecting rod and second connecting rod, the first connecting rod one
End is connected to the driving structure to be rotated under the drive of the driving structure, and the second connecting rod is rotatably connected at
The first connecting rod is rotatably connected at the plunger one away from described driving structure one end, the other end of the second connecting rod
End.
Brief description of the drawings
Fig. 1 is the structural representation of the plunger pump of first embodiment；
Fig. 2 is the structural representation of the plunger pump of second embodiment；
Fig. 3 is the structural representation of the plunger pump of 3rd embodiment；
Fig. 4 is the structural representation of the plunger pump of fourth embodiment；
Fig. 5 is the structural representation of the plunger pump of the 5th embodiment；
Fig. 6 is the structural representation of the plunger pump of sixth embodiment.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to of the present utility model
The understanding of disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
As shown in figure 1, a kind of Handheld high-voltage cleaning machine of this first embodiment, the Handheld high-voltage cleaning machine include shell
Body 110, driving structure 120 and plunger pump 140.
Wherein, driving structure 120 and plunger pump 140 be in housing 110, plunger pump 140 include two or two with
On piston structure 142, each piston structure 142 includes cylinder body 1422 and the plunger 1424 in cylinder body 1422, drives
Structure 120 is connected to each plunger 1424 to drive each plunger 1424 linear reciprocating motion in corresponding cylinder body 1422.
Above-mentioned Handheld high-voltage cleaning machine, due to provided with the plunger pump for including two or more piston structures 142
140, two or more plungers 1424 can be respectively limited by corresponding cylinder body 1422 and back and forth straight in cylinder body 1422
Line moves, so as to which compared to the plunger pump only with a plunger is used in the prior art, the Handheld high-voltage cleaning machine has
Larger water flow, so as to have higher operating efficiency.
Please continue to refer to Fig. 1, plunger pump 140 includes connection driving structure 120 and the transmission mechanism 144 of plunger 1424, drives
Dynamic structure 120 drives two or more opposing cylinders 1422 of plunger 1424 to be synchronized with the movement by transmission mechanism 144, so as to
The common work completed suction liquid and discharge liquid, with fluid flow of the increase suction liquid with discharging liquid.
Specifically, driving structure 120 is with the motor of output torque provided with output shaft 122.Transmission mechanism 144 includes
Eccentric shaft 143, plunger 1424 are sheathed on eccentric shaft 143, and eccentric shaft 143 can drive plunger under the driving of driving structure 120
1424 straight reciprocating motions in cylinder body 1422, so as to change the volume at the both ends of cylinder body 1422 to complete to suck liquid and discharge liquor
The work of body.In the present embodiment, plunger 1424 is two, and eccentric shaft 143 is connected to the middle part of two plungers 1424, and
Two plungers 1424 are symmetricly set in the both ends that eccentric shaft 143 is located remotely from each other.
Further, eccentric shaft 143 is also two, and two eccentric shafts 143 are coaxial and are arranged at intervals, two eccentric shafts 143
The one end being located remotely from each other connects the middle part of one of plunger 1424 respectively, so as to drive one of plunger 1424 reciprocal respectively
Motion.Each cylinder body 1422 includes Liang Ge high-pressure chamber, and the Liang Ge high-pressure chamber is located at the both ends of plunger 1424 respectively.Post
Plug alternately high-pressure chamber of the extruding positioned at its both ends can be pressurizeed 1424 in reciprocatory movement, so that water is from the post
Sprayed in plug pump 140.
Specifically, eccentric shaft 143 includes first end 1432 and located at the second end 1434 of the side end face of first end 1,432 1, the
The central axis at two ends 1434 and the central axis skew of first end 1432 are set, and plunger 1424 coordinates with the second end 1434.Such as
This, driving structure 120 can drive the center axis thereof around its own of the first end 1432 of eccentric shaft 143, and then make and the
The second end 1434 that the skew of one end 1432 is set is also around the center axis thereof of first end 1432.Due to the center at the second end 1434
Axis and the central axis of first end 1432 have certain distance, therefore can drive plunger 1424 in the spacing work of cylinder body 1422
With lower along straight reciprocating motion, so as to which alternately high-pressure chamber of the extruding positioned at its both ends is pressurizeed.
Further, transmission mechanism 144 also includes the bevel gear of the output shaft 122 and eccentric shaft 143 of connection driving structure
Group 145, the output shaft 122 of driving structure connect eccentric shaft 143 to drive eccentric shaft 143 to rotate by bevel gear set 145.
Specifically, bevel gear set 145 includes the first bevel gear of an output shaft 122 for being sheathed on driving structure 120
1452 and two second bevel gears 1454 engaged with first bevel gear 1452, the central axis upright of second bevel gear 1454 in
The central axis of first bevel gear 1452 to change the transmission direction of the output of output shaft 122, distinguish by two second bevel gears 1454
It is affixed to drive two synchronous axial systems of eccentric shaft 143 with two eccentric shafts 143 respectively by connecting shaft.
In the present embodiment, two plungers 1424 are symmetricly set in the both sides of transmission mechanism 144 and two plungers 1424
The centerline axis parallel of the output shaft 122 of heart axis direction and driving structure 120, two second bevel gears 1454 are symmetrically set in the
The relative both sides of one bevel gear 1452 are with corresponding with two plungers 1424.Therefore, first bevel gear, which rotates 1452, can drive two
The synchronous axial system of second bevel gear 1454, and transmission direction because the inclined-plane of second bevel gear 1454 and first bevel gear 1452 coordinates and
Change, and then drive two plungers 1424 to move back and forth.
Above-mentioned Handheld high-voltage cleaning machine, a driving structure 120 can drive two by transmission mechanism 144 and can set respectively
In the plunger 1424 in two cylinder bodies 1422, synchronous linear moves back and forth in cylinder body 1422, so as to increase the Handheld high-voltage
The flow of the liquid of suction and the discharge of cleaning machine, there is higher operating efficiency.
As shown in Fig. 2 a kind of Handheld high-voltage cleaning machine of second embodiment, with high pressure during hand-held in first embodiment
Cleaning machine is similar, including housing 210 and driving structure 220 and plunger pump 240 in housing 210, wherein plunger pump 240 wrap
Include piston structure 242 and transmission mechanism 244.Piston structure 242 includes cylinder body 2422 and the plunger 2424 in cylinder body 2422
Transmission mechanism 244 includes being used for the eccentric shaft 243 for driving the straight reciprocating motion of plunger 2424, and eccentric shaft 243 includes first end
2432 and located at the second end 2434 of the side end face of first end 2,432 1, the moment of torsion that driving structure 220 exports is converted into plunger
2424 straight reciprocating motion.Driving structure 220 is the motor provided with output shaft and output torque.
It is with first embodiment difference, in this second embodiment, two intervals of plunger 2424 are located at eccentric shaft
243 wherein one end, with the straight reciprocating motion under the drive of eccentric shaft 243.
Specifically, transmission mechanism 244 also includes the connector 245 coordinated with eccentric shaft 243.The first end of eccentric shaft 243
2432 are sheathed on the output shaft of driving structure 220, and connector 245 is sheathed on the second end 2434 of eccentric shaft 243 and is arranged in
Plunger 2424, and the central axis of connector 245 overlaps with the central axis at the second end of eccentric shaft 243.In this way, driving structure
220 output shaft drives eccentric shaft 243 to rotate, and then can be with follower link 245 around the center of the first end 2432 of eccentric shaft 243
Axis carries out eccentric rotary, can finally drive spacing lower carry out straight reciprocating motion of the plunger 2424 in cylinder body 2422.
In the present embodiment, two plungers 2424 it is parallel be arranged side by side and the central axis of two plungers 2424 with driving tie
The central axis upright of the output shaft of structure 220, connector 245 stretch into another post after passing through one of the middle part of plunger 2424
The middle part of plug 2424, so as to drive two synchronous linear of plunger 2424 motions.
As shown in figure 3, a kind of Handheld high-voltage cleaning machine of 3rd embodiment, with the Handheld high-voltage in first embodiment
Cleaning machine is similar, including housing 310 and driving structure 320 and plunger pump 340 in housing 310, wherein plunger pump 340 wrap
Piston structure 342 and transmission mechanism 344 are included, piston structure 342 includes cylinder body 3422 and the plunger 3424 in cylinder body 3422,
Driving structure 320 can drive transmission device 344 to drive plunger 3424 to move.Wherein, driving structure 320 is provided with output shaft
322 and output torque motor.
In the present embodiment, transmission mechanism 344 includes swash plate actuator 3442, swash plate actuator 3442 and driving structure
320 output shaft 322 coordinates and the central axial direction of relative output shaft 322 is obliquely installed, and two plungers 3424 are arranged at intervals
And wherein one end is held in swash plate actuator 3442 away from driving structure 320 and relative 322 inclined end face of output shaft respectively.
The swash plate actuator 3442 can be rotated by output shaft 322, so as to change the chi on the axis direction of output shaft 322
Very little, plunger 3424 is then held in the end face of swash plate actuator 3442 and in central shaft under the drive of swash plate actuator 3442 all the time
Line moves back and forth on direction.
Further, 3442 structure in the form of annular discs of swash plate actuator, after swash plate actuator 3442 rotates one week, plunger
3424 can complete once to suck liquid with discharging the work of liquid.
Further, transmission mechanism 344 includes driving gear component 3444, and driving gear component 3444 includes and drive
The gear and the power transmission shaft through gear that the output shaft 322 of dynamic structure 320 coordinates, the power transmission shaft one end, which is arranged in, is engaged in output
The gear of axle 322, the other end are arranged in swash plate actuator 3442, and swash plate actuator 3442 can turn under the drive of the output shaft
It is dynamic.
As shown in figure 4, the Handheld high-voltage cleaning machine of fourth embodiment, with high-pressure wash during hand-held in first embodiment
Machine is similar, including housing and driving structure and plunger pump 440 in housing, wherein plunger pump 440 include piston structure 442
With transmission mechanism, piston structure 442, which includes cylinder body 4422 and the plunger 4424 in cylinder body 4422, driving structure, can drive biography
Motivation structure is to drive plunger 442 to move.Wherein, driving structure is the motor provided with output shaft 422 and output torque.
Specifically, transmission mechanism includes eccentric wheel 4442, and the eccentric wheel 4442 is sheathed on the output shaft 422 of driving structure
And the central axis of the central axis of eccentric wheel 4442 and output shaft 422 is misaligned, two or more plungers 4,424 1
End is connected to the side wall of eccentric wheel 4442.In this way, the output shaft 422 of driving structure can be with movable eccentric wheel 4442 around output shaft 422
Center axis thereof, and then change plunger 4424 central axial direction position and straight reciprocating motion.
Further, two plungers 4424 are spaced and are set up in parallel, eccentric wheel 4442 positioned at two one end of plunger 4424 with
Contact and drive plunger 4424 to move.Eccentric wheel 4442 rotates one week, and two plungers 4424 can be completed once to suck and discharge
The work of liquid.
As shown in figure 5, the Handheld high-voltage cleaning machine of the 5th embodiment, is cleaned with the Handheld high-voltage in first embodiment
Machine is similar, including housing and driving structure 520 and plunger pump 540 in housing, wherein plunger pump 540 include piston structure
542 include cylinder body 5422 and the plunger 5424 in cylinder body 5422, driving structure with transmission mechanism 544, piston structure 542
520 can drive transmission device 544 to drive plunger 5424 to move.
Further, driving structure 520 is provided with output shaft 522 and exports the linear electric motors of straight reciprocating motion, is driven
Mechanism 544 includes drive rod, and drive rod one end is connected to linear electric motors, and the other end is connected to plunger 5424 to drive plunger 5424
Straight reciprocating motion is carried out in cylinder body 5422.
In the present embodiment, drive rod includes the first drive rod 5442 and driven located at the second of the both ends of the first drive rod 5442
Lever 5444, the first drive rod 5442 are sheathed on the output shaft 522 of driving structure 520, two second drive rods 5444 from first
The both ends of drive rod 5442 extend to be respectively and fixedly connected with two plungers 5424 to away from the one end of driving structure 520, so as to timing belt
The central axis direction for moving output shaft 522 of two plungers 5424 along driving structure 520 moves back and forth, and finally drives two plungers
5424 carry out straight reciprocating motion in cylinder body 5422.
As shown in fig. 6, a kind of Handheld high-voltage cleaning machine of sixth embodiment, with the Handheld high-voltage in first embodiment
Cleaning machine is similar, including housing and driving structure and plunger pump 640 in housing, the plunger pump 640 include piston structure
642 include cylinder body 6422 and the plunger 6424 in cylinder body 6422 with drive mechanism 644, piston structure 642, and driving structure can
Drive transmission device 644 is to drive plunger 6424 to move.Driving structure is the driving electricity provided with output shaft 622 and output torque
Machine.
Specifically, transmission mechanism 644 includes first connecting rod 6442 and second connecting rod 6444, and the one end of first connecting rod 6442 connects 1
The output shaft 622 of driving structure is connected to be rotated under the drive of driving structure, second connecting rod 6444 is rotatably connected at
One connecting rod 6442 is rotatably connected at the one end of plunger 6424 away from driving structure one end, the other end of second connecting rod 6444.Such as
This, driving structure can drive first connecting rod 6442 around the center axis thereof of output shaft 622, and then drive and be connected to plunger 6424
Second connecting rod 6444 swing, it is final to drive plunger 6424 to carry out straight reciprocating motion in cylinder body 6422.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (11)
- A kind of 1. Handheld high-voltage cleaning machine, it is characterised in that including：Housing；Driving structure, in the housing；AndPlunger pump, in the housing, the plunger pump includes two or more piston structures, each plunger Structure includes cylinder body and the plunger in the cylinder body, and it is each to drive that the driving structure is connected to each plunger Plunger linear reciprocating motion in the corresponding cylinder body.
- 2. Handheld high-voltage cleaning machine according to claim 1, it is characterised in that the plunger pump is also included described in connection Driving structure and the transmission mechanism of the plunger, the driving structure are driven two or more by the transmission mechanism The relatively described movement of cylinder block of the plunger.
- 3. Handheld high-voltage cleaning machine according to claim 2, it is characterised in that the transmission mechanism includes eccentric shaft, The plunger bushing is located at the eccentric shaft, and the eccentric shaft can drive the plunger described under the driving of the driving structure Straight reciprocating motion in cylinder body.
- 4. Handheld high-voltage cleaning machine according to claim 3, it is characterised in that the plunger is two, the bias Axle is connected to the middle part of two plungers, and two plungers are symmetricly set in the eccentric shaft is located remotely from each other two End or interval are located at the eccentric shaft wherein one end.
- 5. Handheld high-voltage cleaning machine according to claim 4, it is characterised in that the cylinder body includes being located at the plunger The high-pressure chamber at both ends, the plunger straight reciprocating motion can extrude two high-pressure chamber in the cylinder body with alternating.
- 6. Handheld high-voltage cleaning machine according to claim 3, it is characterised in that the eccentric shaft includes first end and set In the second end of the side end face of first end one, the central axis at second end is set with the central axis skew of the first end Put, the plunger coordinates with second end.
- 7. Handheld high-voltage cleaning machine according to claim 3, it is characterised in that the transmission mechanism also includes connection institute The output shaft of driving structure and the bevel gear set of the eccentric shaft are stated, the bevel gear set is sheathed on the output shaft including one First bevel gear and two second bevel gears engaged with the first bevel gear, the central axis of the second bevel gear hang down It is directly affixed to drive by connecting shaft and the eccentric shaft in the central axis of the first bevel gear, two bevel gears State eccentric shaft turns.
- 8. Handheld high-voltage cleaning machine according to claim 2, it is characterised in that the transmission mechanism drives including swash plate Part, the swash plate actuator are obliquely installed with the power transmission shaft with the central axial direction for merging relatively described power transmission shaft, two Or more than two plungers wherein one end is held in the end face of the swash plate actuator away from the driving structure respectively.
- 9. Handheld high-voltage cleaning machine according to claim 2, it is characterised in that the transmission mechanism includes eccentric wheel, Two or more plunger at one end are connected to the side wall of the eccentric wheel.
- 10. Handheld high-voltage cleaning machine according to claim 2, it is characterised in that the driving structure is linear electric motors, The transmission mechanism includes drive rod, and described drive rod one end is connected to the linear electric motors, and the other end is connected to the plunger To drive the piston reciprocation to move.
- 11. Handheld high-voltage cleaning machine according to claim 2, it is characterised in that the transmission mechanism includes first and connected Bar and second connecting rod, described first connecting rod one end are connected to the driving structure to be rotated under the drive of the driving structure, The second connecting rod is rotatably connected at the first connecting rod away from described driving structure one end, the second connecting rod it is another End is rotatably connected at the plunger at one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503439.5U CN207025945U (en) | 2017-05-04 | 2017-05-04 | Handheld high-voltage cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503439.5U CN207025945U (en) | 2017-05-04 | 2017-05-04 | Handheld high-voltage cleaning machine |
Publications (1)
| Publication Number | Publication Date |
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| CN207025945U true CN207025945U (en) | 2018-02-23 |
Family
ID=61480097
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720503439.5U Active CN207025945U (en) | 2017-05-04 | 2017-05-04 | Handheld high-voltage cleaning machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678924A (en) * | 2018-07-24 | 2018-10-19 | 苏州小科清洁科技有限公司 | A kind of pump unit and jetting machine |
| CN108787554A (en) * | 2017-05-04 | 2018-11-13 | 苏州宝时得电动工具有限公司 | Handheld high-voltage cleaning machine |
-
2017
- 2017-05-04 CN CN201720503439.5U patent/CN207025945U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787554A (en) * | 2017-05-04 | 2018-11-13 | 苏州宝时得电动工具有限公司 | Handheld high-voltage cleaning machine |
| CN108787554B (en) * | 2017-05-04 | 2024-01-05 | 苏州宝时得电动工具有限公司 | Hand-held high-pressure cleaning machine |
| CN108678924A (en) * | 2018-07-24 | 2018-10-19 | 苏州小科清洁科技有限公司 | A kind of pump unit and jetting machine |
| WO2020019676A1 (en) * | 2018-07-24 | 2020-01-30 | 苏州小科清洁科技有限公司 | Pump assembly and high-pressure cleaner |
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