CN209012010U - Plunger pump and hand-hold washer - Google Patents
Plunger pump and hand-hold washer Download PDFInfo
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- CN209012010U CN209012010U CN201821554528.3U CN201821554528U CN209012010U CN 209012010 U CN209012010 U CN 209012010U CN 201821554528 U CN201821554528 U CN 201821554528U CN 209012010 U CN209012010 U CN 209012010U
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- plunger
- transmission shaft
- chamber
- cavity
- water
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Abstract
The utility model relates to a kind of plunger pump and hand-hold washers.The cleaning machine applies the plunger pump.The plunger pump includes installation cavity, transmission shaft and plunger unit.The transmission shaft is contained in installation cavity, and the both ends of the transmission shaft are positioned by fixing piece respectively, and the driving bearing for making eccentric rotary with transmission shaft is equipped on the transmission shaft.The plunger unit includes plunger cavity and the plunger in the plunger cavity, resetting structure is provided in the plunger cavity, when the transmission shaft rotates, driving bearing remains and plunger contact, the plunger can make straight reciprocating motion under the common driving of driving bearing and resetting structure in plunger cavity.Above-mentioned plunger pump is all positioned by fixing piece due to the both ends of transmission shaft, so that transmission shaft itself is not likely to produce vibration in rotation, and transmission shaft is during rotation, driving bearing thereon remains and plunger contact, can hold to avoid drive shaft generate vibration due to plunger strikes in this way.
Description
Technical field
The utility model relates to field of power tools, more particularly to plunger pump and hand-hold washer.
Background technique
The plunger pump applied in traditional hand-hold washer is only provided with a plunger.The transmission shaft of this single plunger pump
Cantilever work, that is, the transmission shaft one end are provided with fixing piece, and the other end is not provided with fixing piece.That end of no fixing piece is
Free end, the free end are easy to produce vibration at work.
Utility model content
Based on this, it is necessary to aiming at the problem that transmission shaft is also easy to produce vibration, provide a kind of plunger pump.
A kind of plunger pump, comprising:
Installation cavity；
Transmission shaft, the transmission shaft are contained in installation cavity, and the both ends of the transmission shaft are positioned by fixing piece respectively, described
The driving bearing for making eccentric rotary with transmission shaft is installed on transmission shaft；
Plunger unit, the plunger unit include plunger cavity and the plunger in the plunger cavity, the plunger cavity
It is inside provided with resetting structure, when the transmission shaft rotates, driving bearing remains and plunger contact, and the plunger is in drive shaft
It holds under the common driving with resetting structure, it can be reciprocating in plunger cavity.
Above-mentioned plunger pump is since the both ends of transmission shaft are all positioned by fixing piece, so that transmission shaft itself is not easy to produce in rotation
Raw vibration, and transmission shaft is during rotation, driving bearing thereon remains and plunger contact, in this way can be to avoid driving
Bearing generates vibration due to plunger strikes.
The transmission shaft includes for installing the driving portion of driving bearing, setting up separately described in one of the embodiments,
The interconnecting piece at driving portion both ends, two interconnecting pieces are positioned by the fixing piece respectively.
The fixing piece includes setting up separately be separately mounted to the of the both ends of the transmission shaft in one of the embodiments,
One bearing, second bearing.The quantity of the plunger unit is two in one of the embodiments, described two plunger units
It is symmetrically set in the two sides of the driving bearing.
The installation cavity includes first chamber and second chamber in one of the embodiments, and an interconnecting piece is set to described
In second chamber, driving portion and another interconnecting piece are set in the first chamber, and the plunger cavity of the plunger unit is close to first
One end of chamber is provided with first seal, and the first seal and plunger form the first sealing structure, first sealing
Structure closes the gap between plunger cavity and first chamber, and the second chamber is close equipped with second close to one end of first chamber
Sealing, the second seal and transmission shaft form second seals structure, and the second seals structure is by second chamber and first
Gap closing between chamber, the first chamber is interior to be filled with lubricating oil.
The side in the plunger cavity positioned at first seal is provided with guide sleeve in one of the embodiments, described
Guide sleeve is provided with third sealing element away from the side of first seal, and the third sealing element and plunger form third sealing and tie
Structure.
The plunger unit further includes water feeding one-way valve and water one-way valve out in one of the embodiments, and by institute
Plunger, water feeding one-way valve and water one-way valve surrounds out intermediate cavity are stated, the plunger pump further includes intake antrum and water chamber；Institute
State plunger under resetting structure effect by first position towards in the moving process of the second position, intermediate cavity volume is gradually increased, into
Water in water cavity can enter intermediate cavity through the water feeding one-way valve；The plunger is in the case where drive shaft makes use by second position court
In the moving process of first position, intermediate cavity volume is gradually decreased, and the indoor water of intermediate cavity can be gone out water one-way valve and enter water outlet
Chamber.
The plunger pump further includes inlet and outlet in one of the embodiments, and the water inlet passes through water inlet
Channel is connected to the intake antrum, and the water outlet is connected to by exhalant canal with the water chamber.
The resetting structure is volute spring in one of the embodiments,.
The utility model additionally provides a kind of hand-hold washer, comprising:
Host shell；
Above-mentioned plunger pump；
Electric machine assembly is arranged in the host shell, connect, be used to provide power with the plunger pump；
Battery pack is configured at the host shell, for powering to the electric machine assembly.
Detailed description of the invention
Fig. 1 is the schematic diagram for the plunger pump that the embodiments of the present invention provide；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the schematic diagram for the hand-hold washer that the embodiments of the present invention provide.
Wherein:
100, plunger pump 110, first chamber 120, second chamber
130, transmission shaft 131, driving portion 132, interconnecting piece
140, bearing 150, plunger unit 151, plunger cavity are driven
152, plunger 153, resetting structure 154, guide sleeve
155, water feeding one-way valve 156, out water one-way valve 157, intermediate cavity
160a, first seal 160b, second seal 160c, third sealing element
170a, first bearing 170b, second bearing 181, intake antrum
182, water chamber 183, water inlet 184, water outlet
185, intake tunnel 186, exhalant canal 200, hand-hold washer
210, host shell 220, electric machine assembly 230, battery pack
240,250, water flow flow pass 260, spray head are started switch
270, handle
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As shown in Figure 1, the embodiments of the present invention provide a kind of plunger pump 100 comprising installation cavity, transmission shaft
130 and plunger unit 150.
Above-mentioned transmission shaft 130 is contained in installation cavity, and the both ends of above-mentioned transmission shaft 130 are positioned by fixing piece respectively, above-mentioned
The driving bearing 140 for making eccentric rotary with transmission shaft 130 is installed on transmission shaft 130.Above-mentioned fixing piece can be the members such as bearing
Part.For example, 130 both ends of transmission shaft are positioned by first bearing 170a and second bearing 170b respectively.Above-mentioned transmission shaft 130 can be
One eccentric shaft, driving bearing 140 are mounted on the eccentric part of eccentric shaft.Above-mentioned transmission shaft 130 can also be by shaft and installation
Eccentric group in shaft at.Above-mentioned driving bearing 140 is mounted on eccentric wheel.
Above-mentioned plunger unit 150 includes plunger cavity 151 and the plunger 152 in above-mentioned plunger cavity 151, above-mentioned plunger
Resetting structure 153 is provided in chamber 151, when above-mentioned transmission shaft 130 rotates, driving bearing 140 is remained to be connect with plunger 152
Touching, above-mentioned plunger 152 can be made back and forth to transport in plunger cavity 151 under the common driving of driving bearing 140 and resetting structure 153
It is dynamic.
The plunger unit 150 has first position, the second position, and above-mentioned first position, that is, plunger 152 is in plunger cavity 151
Along the extreme position moved far from installation cavity direction, said second position, that is, plunger 152 is in plunger cavity 151 along close to installation cavity side
To the extreme position of movement, the plunger unit switches between the first position and the second position.
In the present embodiment, the quantity of above-mentioned plunger unit 150 can be one, or multiple.For example, above-mentioned plunger
The quantity of unit 150 is two, and above-mentioned two plunger unit 150 is to the two sides for being arranged in above-mentioned driving bearing 130.Above-mentioned transmission
Axis 130 during rotation, driving bearing 140 on driving portion 131 can two plungers 152 of driven along corresponding plunger cavity
151 movements, i.e., when one of plunger unit 150 is in first position, another plunger unit 150 is in the second position；
When one of plunger unit 150 is in the second position, another plunger unit 150 is in first position.
In the present embodiment, above-mentioned transmission shaft 130 includes driving portion 131 and sets up the connection at 131 both ends of driving portion separately
Portion 132, above-mentioned installation cavity include first chamber 110 and second chamber 120, and an interconnecting piece 132 is set to the second chamber 120
Interior, driving portion 131 and another interconnecting piece 132 are set in the first chamber 110, and two interconnecting pieces 132 are in the first chamber 110
With in the second chamber 120 respectively by first bearing 170a and second bearing 170b location and installation, the two of above-mentioned transmission shaft 130
End is positioned by the first bearing 170a and second bearing 170b respectively, so that transmission shaft itself is not easy to produce in rotation
Raw vibration.Above-mentioned driving bearing 140 is installed on above-mentioned driving portion 131.Above-mentioned interconnecting piece in the second chamber 120
132 can be connected with electric machine assembly 220.Transmission shaft 130 can be driven to rotate by electric machine assembly 220.The column of above-mentioned plunger unit 150
Plug chamber 151 is provided with first seal 160a, above-mentioned first seal 160a and plunger 152 close to one end of first chamber 110
The first sealing structure is formed, above-mentioned first sealing structure closes the gap between plunger cavity 151 and first chamber 110, above-mentioned
Second chamber 120 is equipped with second seal 160b, above-mentioned second seal 160b and transmission shaft close to one end of first chamber 110
130 form second seals structure, and above-mentioned second seals structure closes the gap between second chamber 120 and first chamber 110,
Lubricating oil is filled in above-mentioned first chamber 110.Above-mentioned second seal 160b is oil sealing or other members with sealing function
Part.Similarly, above-mentioned first seal 160a is oil sealing or other elements with sealing function.
Above-mentioned plunger pump 100 is due to having the first sealing structure and second seals structure, so that the profit in first chamber 110
Lubricating oil can maintain in first chamber 110.And the water in plunger cavity 151 is hardly entered due to being stopped by the first sealing structure
In first chamber 110.Even if there is a small amount of water to enter in first chamber 110, due to being filled with lubricating oil in first chamber 110, drive
Dynamic bearing 140 is wrapped up by lubricating oil, this part water is caused to be difficult to cause that bearing 140 is driven to get rusty.Since driving bearing 140 is not easy
It gets rusty, also there is no need to use the driving bearing of stainless steel material.Cost can be reduced in this way.
In the present embodiment, the side of first seal 160a is provided with guide sleeve 154 in above-mentioned plunger cavity 151, on
State guide sleeve 154 and the side of first seal 160a be provided with third sealing element 160c, above-mentioned third sealing element 160c with
Plunger 152 forms third sealing structure, and above-mentioned third sealing structure is for preventing water from flowing towards first seal 160a.By setting
Third sealing element 160c is set, can be further improved sealing effect, that is, water can be further prevented to enter first chamber 110
It is interior.Above-mentioned third sealing element 160c can be oil sealing etc..On the one hand first seal 160a is convenient in the setting of above-mentioned guide sleeve 154
With the assembly of third sealing element 160c, it is fixed that support on the other hand can also be played to first seal 160a and third sealing element 160c
The other structures of plunger pump 100 can also be played support positioning action by the effect of position.
Above-mentioned plunger unit 150 further includes water feeding one-way valve 155 and water one-way valve 156 out, and by above-mentioned plunger 152,
The intermediate cavity Room 157 that water feeding one-way valve 155 and out water one-way valve 156 surround.I.e. each corresponding water inlet of plunger unit 150 is unidirectional
Valve 155, one goes out water one-way valve 156 and an intermediate cavity Room 157.Above-mentioned plunger pump 100 further includes intake antrum 181 and water chamber 182.
Above-mentioned intake antrum 181 can be located between two water feeding one-way valves 155.Above-mentioned water chamber 182 can be located at two and go out water one-way valve 156
Between.Above-mentioned plunger 152 under the effect of resetting structure 153 by first position towards in the moving process of the second position, intermediate cavity Room 157
Volume is gradually increased, and the water in intake antrum 181 can enter intermediate cavity Room 157 through above-mentioned water feeding one-way valve 155.Above-mentioned plunger 152
In the case where driving bearing 140 is acted on by the second position towards in the moving process of first position, 157 building volume of intermediate cavity is gradually decreased, in
Between the indoor water of chamber 157 can be gone out water one-way valve 156 enter water chamber 182.
In the present embodiment, above-mentioned plunger pump 100 further includes water inlet 183 and water outlet 184, and above-mentioned water inlet 183 passes through
Intake tunnel 185 is connected to above-mentioned intake antrum 181, and above-mentioned water outlet 184 is connected by exhalant canal 186 and above-mentioned water chamber 182
It is logical.Water inlet 183 can be connected with external water source.Water outlet 184 can connect with the water flow flow pass 250 of hand-hold washer 200
It is logical.Above-mentioned water flow flow pass 250 is connected with the spray head 260 of hand-hold washer 200.In this way, the water of external water source can be successively
By water inlet 183, intake antrum 181, intermediate cavity 157, water chamber 182, water outlet 184 and water flow flow pass 250, finally,
It can be sprayed by the spray head 260 of hand-hold washer 200.
When above-mentioned resetting structure 153 is spring, the plunger unit is in first position and first position and described the
When between two positions, one end of spring and plunger 152 against, spring the other end and plunger cavity 151 against.Specifically, can be with
Spring mounting groove is set in the tail end of plunger 152, is also provided with spring mounting groove, the both ends point of spring in the end of plunger cavity 151
It is not assemblied in two spring mounting grooves.Above-mentioned resetting structure 153 can be cylindrically coiled spring, be also possible to volute spring.
Be conducive to improve the self-priming effect of plunger pump 100 using volute spring.This is because for comparing cylindrically coiled spring, taper
The use of spring can effectively improve the compression ratio of pump, and compress the relatively high self-priming effect for being conducive to improve plunger pump 100.
It should be noted that the big end of above-mentioned volute spring is arranged in plunger tail when resetting structure 153 is volute spring
Hold in the spring mounting groove formed, the cavity wall of the small end of volute spring and plunger cavity 151 against.
The embodiments of the present invention additionally provide a kind of hand-hold washer 200 comprising: it is host shell 210, above-mentioned
Plunger pump 100, electric machine assembly 220 and battery pack 230.
Above-mentioned electric machine assembly 220 is arranged in above-mentioned host shell 210, connect with above-mentioned plunger pump 100, dynamic for providing
Power.
Above-mentioned battery pack 230 is configured at above-mentioned host shell 210, for powering to above-mentioned electric machine assembly 220.
In the present embodiment, above-mentioned host shell 210 includes handle 270, is provided on above-mentioned handle 270 and starts switch 240.
The setting of handle 270 so that operator hold it is convenient, when preparing will work, operator's hand-hold washer, on starting handle 270
Start switch 240；When preparing to stop working, operator directly closes on handle 270 and starts switch 240.
In the present embodiment, the motor used in electric machine assembly 220 can be direct current generator.By battery pack 230 directly to straight
The power supply of galvanic electricity machine, direct current generator is for driving plunger pump work.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies 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, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of plunger pump characterized by comprising
Installation cavity；
Transmission shaft, the transmission shaft are contained in installation cavity, and the both ends of the transmission shaft are positioned by fixing piece respectively, the transmission
The driving bearing for making eccentric rotary with transmission shaft is installed on axis；
Plunger unit, the plunger unit include plunger cavity and the plunger in the plunger cavity, are set in the plunger cavity
Be equipped with resetting structure, when the transmission shaft rotates, driving bearing remains and plunger contact, the plunger in driving bearing and
It, can be reciprocating in plunger cavity under the common driving of resetting structure.
2. plunger pump according to claim 1, it is characterised in that: the transmission shaft includes the drive for installing driving bearing
Dynamic portion sets up interconnecting piece at the driving portion both ends separately, and two interconnecting pieces are positioned by the fixing piece respectively.
3. plunger pump according to claim 1, it is characterised in that: the fixing piece include set up separately be separately mounted to it is described
First bearing, the second bearing at the both ends of transmission shaft.
4. plunger pump according to claim 1, which is characterized in that the quantity of the plunger unit is two, described two
Plunger unit is symmetrically set in the two sides of the driving bearing.
5. plunger pump according to claim 2, which is characterized in that
The installation cavity includes first chamber and second chamber, and an interconnecting piece is set in the second chamber, driving portion and another
Interconnecting piece is set in the first chamber；
The plunger cavity of the plunger unit is provided with first seal, the first seal and column close to one end of first chamber
Plug forms the first sealing structure, and first sealing structure closes the gap between plunger cavity and first chamber；
The second chamber is equipped with second seal close to one end of first chamber, and the second seal and transmission shaft form the
Two sealing structures, the second seals structure close the gap between second chamber and first chamber；
Lubricating oil is filled in the first chamber.
6. plunger pump according to claim 5, which is characterized in that the side in the plunger cavity positioned at first seal is set
It is equipped with guide sleeve, the guide sleeve is provided with third sealing element, the third sealing element and column away from the side of first seal
Plug forms third sealing structure.
7. plunger pump according to claim 1, which is characterized in that
The plunger unit further includes water feeding one-way valve and water one-way valve out, and by the plunger, water feeding one-way valve and water outlet
The intermediate cavity that check valve surrounds, the plunger pump further include intake antrum and water chamber；
The plunger under resetting structure effect by first position towards in the moving process of the second position, intermediate cavity volume gradually increases
Greatly, the water in intake antrum can enter intermediate cavity through the water feeding one-way valve；
The plunger in the case where drive shaft makes use by the second position towards in the moving process of first position, intermediate cavity volume gradually subtracts
Few, the indoor water of intermediate cavity can be gone out water one-way valve and enter water chamber.
8. plunger pump according to claim 7, which is characterized in that the plunger pump further includes inlet and outlet, institute
It states water inlet to be connected to by intake tunnel with the intake antrum, the water outlet is connected to by exhalant canal with the water chamber.
9. plunger pump according to claim 1, which is characterized in that the resetting structure is volute spring.
10. a kind of hand-hold washer characterized by comprising
Host shell；
Plunger pump described in any one of claim 1 to 9；
Electric machine assembly is arranged in the host shell, connect, be used to provide power with the plunger pump；
Battery pack is configured at the host shell, for powering to the electric machine assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821554528.3U CN209012010U (en) | 2018-09-21 | 2018-09-21 | Plunger pump and hand-hold washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821554528.3U CN209012010U (en) | 2018-09-21 | 2018-09-21 | Plunger pump and hand-hold washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012010U true CN209012010U (en) | 2019-06-21 |
Family
ID=66834018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821554528.3U Active CN209012010U (en) | 2018-09-21 | 2018-09-21 | Plunger pump and hand-hold washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012010U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905756A (en) * | 2019-11-27 | 2020-03-24 | 丹阳新工五金有限公司 | Cleaning machine plunger pump |
| CN110905750A (en) * | 2019-11-27 | 2020-03-24 | 丹阳新工五金有限公司 | Hand-held type cleaning machine |
| WO2021082909A1 (en) * | 2019-10-31 | 2021-05-06 | 苏州宝时得电动工具有限公司 | Handheld high-pressure washer and washer |
| CN113775498A (en) * | 2021-10-13 | 2021-12-10 | 浙江酷泓机械科技有限公司 | Axial pump of high-pressure cleaning machine |
| CN114109803A (en) * | 2021-07-26 | 2022-03-01 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
-
2018
- 2018-09-21 CN CN201821554528.3U patent/CN209012010U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021082909A1 (en) * | 2019-10-31 | 2021-05-06 | 苏州宝时得电动工具有限公司 | Handheld high-pressure washer and washer |
| CN110905756A (en) * | 2019-11-27 | 2020-03-24 | 丹阳新工五金有限公司 | Cleaning machine plunger pump |
| CN110905750A (en) * | 2019-11-27 | 2020-03-24 | 丹阳新工五金有限公司 | Hand-held type cleaning machine |
| CN114109803A (en) * | 2021-07-26 | 2022-03-01 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
| CN114109803B (en) * | 2021-07-26 | 2024-04-26 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
| CN113775498A (en) * | 2021-10-13 | 2021-12-10 | 浙江酷泓机械科技有限公司 | Axial pump of high-pressure cleaning machine |
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