CN106286201B - A kind of stable high voltage medical pump - Google Patents
A kind of stable high voltage medical pump Download PDFInfo
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- CN106286201B CN106286201B CN201510247290.4A CN201510247290A CN106286201B CN 106286201 B CN106286201 B CN 106286201B CN 201510247290 A CN201510247290 A CN 201510247290A CN 106286201 B CN106286201 B CN 106286201B
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- feed pathway
- apocenosis passage
- piston cylinder
- piston
- pump housing
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Abstract
The invention discloses a kind of stable high voltage medical pumps, including the pump housing, inlet tube and outlet tube, first piston cylinder and second piston cylinder are equipped in the pump housing, it is connected with the inner cavity of first piston cylinder and is equipped with the first feed pathway and the first apocenosis passage, it is connected with the inner cavity of second piston cylinder and is equipped with the second feed pathway and the second apocenosis passage, inlet tube is connect respectively and in the first feed pathway and the second feed pathway equipped with check valve with the first feed pathway and the second feed pathway, the pump housing is equipped with switching valve, outlet tube can be with the first apocenosis passage or the second drain channel conductive by switching valve, piston and piston rod are respectively arranged in first piston cylinder and second piston cylinder.It include two piston cylinders in this stable high voltage medical pump, by way of the asynchronous persistent pressure of double-piston, double-piston is moved back and forth, and check valve and switching valve is cooperated to realize gapless continuous high-pressure, the fluctuation problem of water knife is overcome, water knife good cutting performance under a constant is kept.
Description
Technical field
The present invention is used for the field of medical instrument technology, more particularly to a kind of stable high voltage medical pump.
Background technique
In Water Cutting technology, high-pressure pump is one of the core of medical water jet design, frequently with the common mark such as plunger pump
Quasi- part.When existing medical high-pressure pump, liquid enter plunger pump and is pressurized, one end is intake by one-way water inlet valve, after pressurization
It is released by the other end, enters pressure duct by going out water one-way valve, by the reciprocating motion of piston, form endlessly high pressure
Water flow.But this high-pressure pump exports water flow pressure and also forms cyclic fluctuation since piston motion is there are a commutation cycle, because
This usually must also carry out pressure stabilizing by addition installing high pressure accumulator additional.
Summary of the invention
To solve the above problems, the present invention provides a kind of stable high voltage medical pump, overcome by gapless continuous high-pressure
The pressure oscillation problem of water knife, to achieve the purpose that medical pump stable high voltage；Reducing pressure duct makes high pressure accumulator
With simplified pressure duct；Total is simple and practical simultaneously, is easy to carry out sterilization treatment, to meet medical instrument to sterilization
Requirement.
The technical solution adopted by the present invention to solve the technical problems is: a kind of stable high voltage medical pump, including the pump housing, into
Liquid pipe and outlet tube, the pump housing is interior to be equipped with first piston cylinder and second piston cylinder, is connected with the inner cavity of the first piston cylinder
Equipped with the first feed pathway and the first apocenosis passage, be connected with the inner cavity of the second piston cylinder equipped with the second feed pathway and the
Two apocenosis passages, the inlet tube connect with first feed pathway and the second feed pathway respectively and in the first feed pathways
With check valve is housed in the second feed pathway, the pump housing is equipped with switching valve, and the outlet tube can be with by the switching valve
First apocenosis passage or the second drain channel conductive, be respectively arranged in the first piston cylinder and second piston cylinder piston and
Driving the piston is in the piston rod of asynchronous reciprocating motion.
It is further used as the improvement of technical solution of the present invention, on the pump housing the first feed pathway, the first apocenosis passage,
The outside of second feed pathway and the second apocenosis passage is equipped with pump cover, and the pump cover and the pump housing are tightly connected.
It is further used as the improvement of technical solution of the present invention, the switching valve include the guide hole that is located in the pump cover and
Switching valve ball in the guide hole, the both ends of the guide hole are logical with first apocenosis passage and the second drain respectively
Road docking, the switching valve ball can move in the guide hole and can close first apocenosis passage or the second drain is logical
Road, the side wall of the guide hole are equipped with the fluid hole be connected with the outlet tube, and the diameter of the switching valve ball goes out greater than described in
The aperture of fluid apertures, the first apocenosis passage and the second apocenosis passage.
It is further used as the improvement of technical solution of the present invention, and the pump cover is equipped with the first feed pathway described in face and the
The unidirectional valve pool of two feed pathways, the bottom of the unidirectional valve pool opens up the inlet opening be connected with the inlet tube, described unidirectional
Valve includes that in the unidirectional valve pool and can close the unidirectional valve ball of the inlet opening and the unidirectional valve ball is avoided to enter
First feed pathway and the anti-of the second feed pathway close gasket, and the anti-gasket that closes is equipped with several through flow holes, the unidirectional valve ball
Diameter be greater than the inlet opening and through flow hole aperture.
It is further used as the improvement of technical solution of the present invention, the first piston cylinder and second piston cylinder on the pump housing side by side
It is arranged, in the outside shape of the first feed pathway, the first apocenosis passage, the second feed pathway and the second apocenosis passage on the pump housing
At the mounting plane for assembling the pump cover.
Beneficial effects of the present invention: including two piston cylinders in this stable high voltage medical pump, asynchronous lasting by double-piston
The mode of pressurization, i.e., when a piston rod inner piston promotes liquid under pressure, another piston cylinder inner piston carries out pumping liquid,
It is on the contrary then opposite.Double-piston moves back and forth, and cooperates check valve and switching valve to realize gapless continuous high-pressure, has reached medical pump
The purpose of stable high voltage keeps water knife good cutting performance under a constant to overcome the fluctuation problem of water knife.Together
When this is simple and practical in structure, realize that gapless continuous high-pressure can reduce use of the pressure duct to high pressure accumulator, simplify
Pressure duct.Through the above technical solutions, the pressure oscillation problem of water knife can be overcome well, holding water knife exists the present invention
Good cutting performance under constant pressure, and total also can satisfy requirement of the medical instrument to sterilization.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the structural schematic diagram of the drain of first piston cylinder of the embodiment of the present invention, second piston cylinder imbibition；
Fig. 2 is the structural schematic diagram of the imbibition of first piston cylinder of the embodiment of the present invention, second piston cylinder drain；
Fig. 3, which is that the present invention is anti-, closes gasket construction schematic diagram.
Specific embodiment
The present invention provides a kind of stable high voltage medical pump, including the pump housing 1, inlet tube 2 and outlet tube 3, in the pump housing 1
Equipped with first piston cylinder 11 and second piston cylinder 12, is connected with the inner cavity of the first piston cylinder 11 and is equipped with the first feed pathway
111 and first apocenosis passage 112, it is connected with the inner cavity of the second piston cylinder 12 and is equipped with the second feed pathway 121 and second row
Liquid channel 122, the inlet tube 2 connect respectively with first feed pathway 111 and the second feed pathway 121 and first into
Check valve is housed, the pump housing 1 is equipped with switching valve, and the outlet tube 3 passes through on liquid channel 111 and the second feed pathway 121
The switching valve can be connected with first apocenosis passage 112 or the second apocenosis passage 122, the first piston cylinder 11 and second
It is respectively arranged with piston 13 in piston cylinder 12 and the driving piston 13 is in the piston rod 14 of asynchronous reciprocating motion.
In the first feed pathway 111, the first apocenosis passage 112, the second feed pathway 121 and second row on the pump housing 1
The outside in liquid channel 122 is equipped with pump cover 4, and the pump cover 4 is tightly connected with the pump housing 1.The first piston cylinder 11 and second
Piston cylinder 12 on the pump housing 1 be arranged side by side, on the pump housing 1 the first feed pathway 111, the first apocenosis passage 112, second into
Liquid channel 121 and the outside of the second apocenosis passage 122 form the mounting plane for assembling the pump cover 4.
The switching valve includes the guide hole 41 being located in the pump cover 4 and the switching valve ball in the guide hole 41
42(is preferably steel ball), the both ends of the guide hole 41 are right with first apocenosis passage 112 and the second apocenosis passage 122 respectively
It connects, the switching valve ball 42 can move in the guide hole 41 and can close first apocenosis passage 112 or the second drain
Channel 122, the side wall of the guide hole 41 is equipped with the fluid hole 43 be connected with the outlet tube 3, described to switch the straight of valve ball 42
Diameter is greater than the aperture of the fluid hole 43, the first apocenosis passage 112 and the second apocenosis passage 122.
The pump cover 4 is equipped with the unidirectional valve pool 44 of the first feed pathway 111 and the second feed pathway 121 described in face,
The bottom of the unidirectional valve pool 44 opens up the inlet opening 45 with the inlet tube 2 conducting, and the check valve includes being mounted in the list
Into valve pool 44 and can to close the unidirectional valve ball 46(of the inlet opening 45 be preferably steel ball) and avoid the unidirectional valve ball 46
Gasket 47 is closed into the first feed pathway 111 and the anti-of the second feed pathway 121, as shown in figure 3, described prevent that closing gasket 47 is equipped with
Several through flow holes 471, through flow hole 471 is designed using round hole, to guarantee the unimpeded mistake of liquid flow, the diameter of the unidirectional valve ball 46
Greater than the aperture of the inlet opening 45 and through flow hole 471.Realize that sealing effect is simple and practical by switching valve and check valve, simultaneously
It is easy to sterilize to it, to meet requirement of the medical instrument to sterilization.
Referring to Fig.1, the piston rod 14 in first piston cylinder 11 is pushed ahead, and the inner cavity of first piston cylinder 11 generates high pressure,
It pushes the unidirectional valve ball 46 in the unidirectional valve pool 44 in 111 outside of the first feed pathway to move upwards, closes the first feed pathway 111；
It pushes the switching valve ball 42 in guide hole 41 to move right to shown position and closes the second apocenosis passage 122, highly pressurised liquid is through the
One apocenosis passage 112 is discharged after entering outlet pipe 3.Meanwhile the piston rod 14 in second piston cylinder 12 aspirates backward, second piston
The inner cavity of cylinder 12 generates low pressure, in the unidirectional valve pool 44 in 121 outside of the second feed pathway in unidirectional valve ball 46 move downwardly to it is anti-
It closes at gasket 47, low pressure liquid still can enter second piston cylinder 12 through the second feed pathway 121 by water inlet pipe 2.
Referring to Fig. 2, the piston rod 14 in second piston cylinder 12 is pushed ahead, and the inner cavity of second piston cylinder 12 generates high pressure,
It pushes the unidirectional valve ball 46 in the unidirectional valve pool 44 in 121 outside of the second feed pathway to move upwards, closes the second feed pathway 121；
It pushes the switching valve ball 42 in guide hole 41 to move downward to shown position and closes the first apocenosis passage 112, highly pressurised liquid is through the
Two drains logical 112 are discharged after entering outlet pipe 3.Meanwhile the piston rod 14 in first piston cylinder 11 aspirates backward, first piston
The inner cavity of cylinder 11 generates low pressure, in the unidirectional valve pool 44 in 111 outside of the first feed pathway in unidirectional valve ball 46 move downwardly to it is anti-
It closes at gasket 47, low pressure liquid still can enter first piston cylinder 11 through the first feed pathway 111 by water inlet pipe 2.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (3)
1. a kind of stable high voltage medical pump, it is characterised in that: be equipped with the including the pump housing, inlet tube and outlet tube, in the pump housing
One piston cylinder and second piston cylinder are connected logical equipped with the first feed pathway and the first drain with the inner cavity of the first piston cylinder
Road, be connected with the inner cavity of the second piston cylinder be equipped with the second feed pathway and the second apocenosis passage, the inlet tube respectively with
First feed pathway connects with the second feed pathway and is equipped in the first feed pathway and the second feed pathway check valve,
The pump housing is equipped with switching valve, and the outlet tube can be logical with first apocenosis passage or the second drain by the switching valve
Road is connected, and piston and the driving piston are respectively arranged in the first piston cylinder and second piston cylinder in asynchronous reciprocating motion
Piston rod, on the pump housing the first feed pathway, the first apocenosis passage, the second feed pathway and the second apocenosis passage outside
Equipped with pump cover, the pump cover and the pump housing are tightly connected, and the switching valve includes the guide hole and dress being located in the pump cover
Switching valve ball in the guide hole, the both ends of the guide hole respectively with first apocenosis passage and the second apocenosis passage
Docking, the switching valve ball can move in the guide hole and can close first apocenosis passage or the second apocenosis passage, institute
The side wall for stating guide hole is equipped with the fluid hole that be connected with the outlet tube, the diameter of the switching valve ball greater than the fluid hole,
The aperture of first apocenosis passage and the second apocenosis passage.
2. stable high voltage medical pump according to claim 1, it is characterised in that: the pump cover is equipped with first described in face
The bottom of the unidirectional valve pool of feed pathway and the second feed pathway, the unidirectional valve pool opens up the feed liquor be connected with the inlet tube
Hole, the check valve include that in the unidirectional valve pool and can close the unidirectional valve ball of the inlet opening and avoid the list
Enter the first feed pathway to valve ball and the anti-of the second feed pathway closes gasket, the anti-gasket that closes is equipped with several through flow holes, institute
The diameter for stating unidirectional valve ball is greater than the aperture of the inlet opening and through flow hole.
3. stable high voltage medical pump according to claim 1 or 2, it is characterised in that: the first piston cylinder and second is lived
Plug cylinder is arranged side by side on the pump housing, in the first feed pathway, the first apocenosis passage, the second feed pathway and second on the pump housing
The outside of apocenosis passage forms the mounting plane for assembling the pump cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247290.4A CN106286201B (en) | 2015-05-14 | 2015-05-14 | A kind of stable high voltage medical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247290.4A CN106286201B (en) | 2015-05-14 | 2015-05-14 | A kind of stable high voltage medical pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286201A CN106286201A (en) | 2017-01-04 |
| CN106286201B true CN106286201B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510247290.4A Active CN106286201B (en) | 2015-05-14 | 2015-05-14 | A kind of stable high voltage medical pump |
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| CN (1) | CN106286201B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575379A (en) * | 2017-10-27 | 2018-01-12 | 吉林省云动力智能装备制造有限公司 | High efficiency smart adjustable hydraulic pump and its pumping station system of application |
| CN109268241B (en) * | 2018-08-13 | 2021-04-09 | 王成广 | Reciprocating air compressor cylinder body and reciprocating air compressor |
| CN109140041B (en) * | 2018-10-19 | 2024-07-19 | 惠州海卓科赛医疗有限公司 | Valve plug, high-pressure pump structure and valve plug sealing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976640A (en) * | 2004-06-30 | 2007-06-06 | 爱尔伯电子医疗设备公司 | Medical pump |
| CN1980609A (en) * | 2004-06-30 | 2007-06-13 | 爱尔伯电子医疗设备公司 | Medical pump |
| CN103802482A (en) * | 2012-11-12 | 2014-05-21 | 精工爱普生株式会社 | Liquid supply apparatus |
| CN204663795U (en) * | 2015-05-14 | 2015-09-23 | 罗凤玲 | A kind of stable high voltage medical pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2711545A1 (en) * | 2012-09-19 | 2014-03-26 | Erbe Elektromedizin GmbH | Pump unit for water jet surgery |
| CN103912525A (en) * | 2012-12-29 | 2014-07-09 | 上海熊猫机械(集团)有限公司 | Bidirectional multifunctional coupling device |
| CN104265619A (en) * | 2014-09-30 | 2015-01-07 | 罗凤玲 | Medical high-pressure pump |
-
2015
- 2015-05-14 CN CN201510247290.4A patent/CN106286201B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976640A (en) * | 2004-06-30 | 2007-06-06 | 爱尔伯电子医疗设备公司 | Medical pump |
| CN1980609A (en) * | 2004-06-30 | 2007-06-13 | 爱尔伯电子医疗设备公司 | Medical pump |
| CN103802482A (en) * | 2012-11-12 | 2014-05-21 | 精工爱普生株式会社 | Liquid supply apparatus |
| CN204663795U (en) * | 2015-05-14 | 2015-09-23 | 罗凤玲 | A kind of stable high voltage medical pump |
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| CN106286201A (en) | 2017-01-04 |
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| C06 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181112 Address after: 516083 Longshan seven road, Dayawan, west of Dayawan, Guangdong Applicant after: Huizhou best medical Co., Ltd. Address before: 730000 231 Pingliang Road, Chengguan District, Lanzhou, Gansu 302 Applicant before: Luo Fengling |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |