CN209309455U - A kind of valve plug and high-pressure pump structure - Google Patents
A kind of valve plug and high-pressure pump structure Download PDFInfo
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- CN209309455U CN209309455U CN201821706656.5U CN201821706656U CN209309455U CN 209309455 U CN209309455 U CN 209309455U CN 201821706656 U CN201821706656 U CN 201821706656U CN 209309455 U CN209309455 U CN 209309455U
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- valve plug
- feed pathway
- liquid outlet
- outlet channel
- sealing surface
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Abstract
The utility model relates to technical field of medical treatment mechanical, disclosing a kind of valve plug and high-pressure pump structure, the valve plug includes plug body, and an end face of the plug body is set as sealing surface, and the plug body is provided with step away from one end of the sealing surface；From one end of sealing surface to the other end, its outer diameter is gradually increased the plug body of the valve plug.The utility model has the following beneficial effects: valve plug to be designed as to the shape being gradually increased from sealing surface to other end diameter, structure is simple, and can shorten the sealing response time of valve plug, improves the working effect of high-pressure pump；And sealing surface can be the various shapes such as spherical surface, the conical surface or plane, can reduce difficulty of processing simultaneously in guarantee sealing effect.
Description
Technical field
The utility model relates to a kind of valve plug, the high-pressure pump structure including it and valve plug based on this high-pressure pump structure are quick
Self-sealing method.
Background technique
In the prior art, needs of medical sterilization condition and high pressure performance in order to balance, generally use plunger pump, simultaneously
Pumping intracorporal valve, to be also required to structure simple, and steel ball sealing or pre- using spring is generallyd use in existing pump housing valve gate technology
The product of the sealed body as valve such as tight valve block, existing spring pre-tightening valve block class usually has the following problems: due to bullet
The use of spring causes structure very complicated, the halfway dead space structure of sterilizing easy to form, while very high to spring performance requirement, very
Hardly possible judgement validity under high pressure, therefore carry out as medical product using with great risk, using steel ball as valve
Sealed body realizes self-sealing function according to flow media pressure, and there is a problem of other: steel ball passes through stream as a sphere
To realize sealing, there are very poor commutation efficiency for the driving of dynamic medium, cause steel ball dielectric leakage amount during closed excessive,
Sealing effect is very poor.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of valve plug, the high-pressure pump structure including it are provided
And the valve plug encapsulating method based on this high-pressure pump structure, structure is simple, and can shorten the response time of valve plug, realizes quickly close
Envelope.
To achieve the goals above, the utility model first aspect provides a kind of valve plug, an end of the plug body
Face is set as sealing surface, and the plug body is provided with step away from one end of the sealing surface；The plug body is from sealing
The one end in face to its outer diameter of the other end is gradually increased.
Preferably, the plug body is in a circular table shape.
Preferably, the sealing surface of the plug body is the one of which in plane, spherical surface and the conical surface.
Preferably, at least one end of the plug body is provided with along the outwardly extending convex of central shaft
Platform.
Preferably, the both ends of the plug body are provided with positioning convex platform, wherein are arranged on the sealing surface
There is the first positioning convex platform, the plug body is provided with the second positioning convex platform away from the end face of the sealing surface；The valve plug sheet
Body offers recess away from the end face of the sealing surface, offered on second positioning convex platform with it is described be recessed be connected to it is recessed
Slot.
Same purpose, the utility model second aspect propose a kind of high-pressure pump structure comprising the pump housing and any of the above-described
Valve plug described in, offers feed pathway and liquid outlet channel on the pump housing, the feed pathway and the liquid outlet channel it
Between be connected to by valve plug chamber, the internal diameter of the valve plug chamber is greater than the internal diameter of the feed pathway and the liquid outlet channel；The valve
Plug is slidably set to that the valve plug is intracavitary, and the maximum outside diameter of the valve plug is greater than the interior of the feed pathway and the liquid outlet channel
Diameter, and it is less than the internal diameter of the valve plug chamber, first positioning convex platform is inserted in the feed pathway, second convex
Platform is inserted in the liquid outlet channel, and the outer diameter of first positioning convex platform is less than the internal diameter of the feed pathway, and described the
The outer diameter of two positioning convex platforms is less than the internal diameter of the liquid outlet channel；When the sealing surface of the valve plug is close to the valve plug chamber close to institute
When stating the end face of feed pathway, the feed pathway and liquid outlet channel partition；When the sealing surface of the valve plug is far from described
When valve plug chamber is close to the end face of the feed pathway, the end face of the step abuts the other end of the valve plug chamber, it is described into
Liquid channel is connected to the liquid outlet channel.
Preferably, the feed pathway and two liquid outlet channels there are two being opened up in the pump housing, two
The feed pathway is respectively the first feed pathway, the second feed pathway, and two liquid outlet channels are respectively that first to go out liquid logical
Road, the second liquid outlet channel are connected between first feed pathway and the first liquid outlet channel by the first valve plug chamber, described second
It is connected between feed pathway and second liquid outlet channel by the second valve plug chamber, is also provided with plunger shaft in the pump housing, institute
State the first liquid outlet channel, the second feed pathway is connected to the plunger shaft；The high-pressure pump structure includes two valve plugs, point
Not Wei the first valve plug and the second valve plug, first valve plug is set to that first valve plug is intracavitary, and second valve plug is set to described
Second valve plug is intracavitary.
Preferably, the first installation cavity being connected to first liquid outlet channel is offered in the pump housing, it is described
Inlet tube, the first feed pathway described in the Inner Constitution of inlet tube, the bottom of first installation cavity are inserted in first installation cavity
The first valve plug chamber is defined as between wall and the end face of the inlet tube；It is also provided in the pump housing and second feed liquor
Second installation cavity of channel connection, is inserted with outlet tube in second installation cavity, the described in the Inner Constitution of the outlet tube
Two liquid outlet channels are defined as the second valve plug chamber between the bottom wall of second installation cavity and the end face of the outlet tube.
Preferably, fixing sleeve, the fixing sleeve set are also connected on the outside of the inlet tube and the outlet tube
Set on the outside of the pump housing.
Preferably, at least two plunger shafts are offered on the pump housing, are offered on the pump housing several
Plunger shaft the first feed pathway of corresponding setting, the first liquid outlet channel, the second feed pathway, the second liquid outlet channel one by one；Respectively
First feed pathway is connected by water supply connector, and each second liquid outlet channel is connected by water outlet connector.
The utility model provides a kind of valve plug and the high-pressure pump structure including it, is from sealing by plug body whole installation
The shape that face one end is gradually increased to other end outer diameter, and sealing surface can be set as spherical surface, the conical surface or plane etc., utilize valve plug
Structure can be improved the energy transfer efficiency of fluid, shorten the corresponding time of valve plug, realize fast sealing, and sealing surface is settable
For various shapes, the requirement to machining accuracy can be accordingly reduced.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of valve plug in the utility model embodiment；
Fig. 2 is a kind of the schematic diagram of the section structure of high-pressure pump structure in the utility model embodiment；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the B-B cross-sectional view of Fig. 2；
Fig. 5 be the utility model high-pressure pump structure plunger shaft be high pressure conditions when partial schematic diagram；
Fig. 6 be the utility model high-pressure pump structure plunger shaft be negative pressure state when partial schematic diagram.
In figure, 10, valve plug；11, plug body；111, sealing surface；112, it is recessed；12, step；13, the first positioning convex platform；
14, the second positioning convex platform；141, groove；20, the pump housing；21, the first feed pathway；22, the first valve plug chamber；23, first to go out liquid logical
Road；24, the second feed pathway；25, the second valve plug chamber；26, the second liquid outlet channel；27, plunger shaft；30, the first valve plug, 40,
Two valve plugs；50, inlet tube；60, outlet tube；70, fixing sleeve；80, water supply connector；90, water outlet connector.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.It should be understood that using term in the utility model
" first ", " second " etc. describe various information, but these information should not necessarily be limited by these terms, these terms are only used to will be same
The information of type is distinguished from each other out.For example, " first " information can also be claimed in the case where not departing from the scope of the utility model
Similar for " second " information, " second " information can also be referred to as " first " information.
As shown in Figure 1, the first aspect of the preferred embodiment in the utility model proposes a kind of valve plug 10 comprising valve plug sheet
Body 11, an end face of the plug body 11 are set as sealing surface 111, and the plug body 11 deviates from the sealing surface 111
One end be provided with step 12；From one end of sealing surface 111 to the other end, its outer diameter is gradually increased the plug body 11.This reality
Apply in example, plug body 11 is set as being gradually increased from sealing surface one end to other end outer diameter it is bowl-shape, using valve plug 10 outside
The unique shape of contouring can reduce resistance when fluid flow to liquid outlet channel from feed pathway, can mention in seal process
The energy transmission of high fluid improves the leakage efficiency of valve plug 10, further to shorten the response time of valve plug 10；And valve plug 10
Structure is simple, and difficulty of processing is small.
Specifically, in the present embodiment, outer diameter is set outside one end to the other end of sealing surface 111 by plug body 11
Diameter is gradually increased round table-like.
Further, in this embodiment the sealing surface 111 of the plug body 11 is plane, it is sealed using plane
Processing request and machining accuracy can be reduced, is avoided due to being sealed using the conical surface, processes unqualified lead because of required precision height
The leakage of cause increases the unfailing performance of sealing, and needs a cooperation time relative to conical surface seal, the response speed of flat seal
Degree is speeded.
Illustratively, the sealing surface 111 of the plug body 11 may be equally the conical surface or spherical surface, can make to seal
Better effect.The sealing surface 111 may be configured as spherical surface, circular conical surface, plane or other shapes, can guarantee sealing performance
Meanwhile simplifying processing technology.
Based on the above-mentioned technical proposal, a kind of valve plug 10 is provided in the present embodiment, valve plug 10 is in sliding process in order to prevent
Deflect or block motionless, to lead to poor sealing effect, at least one end of the plug body 11 is provided with along its center
The outwardly extending positioning convex platform of axis.
Specifically, in the present embodiment, in order to guide valve plug 10 in the intracavitary smooth sliding of valve plug, the plug body 11
Both ends be provided with positioning convex platform, for ease of description, wherein the first positioning convex platform 13 is provided on the sealing surface 111,
The plug body 11 is provided with the second positioning convex platform 14 away from the end face of the sealing surface 111；The plug body 11 deviates from
The end face of the sealing surface 111 offers recess 112, offers on second positioning convex platform 14 and is connected to the recess 112
Groove 141.
Same purpose, the second aspect of the preferred embodiment in the utility model also propose a kind of high-pressure pump structure, specific to tie
Structure is referring to shown in attached drawing 2- Fig. 6 comprising the pump housing 20 and valve plug described in any of the above embodiments 10, offer on the pump housing 20 into
Liquid channel and liquid outlet channel are connected between the feed pathway and the liquid outlet channel by valve plug chamber, the valve plug chamber it is interior
Diameter is greater than the internal diameter of the feed pathway and the liquid outlet channel；The valve plug 10 is slidably intracavitary set on the valve plug, described
The maximum outside diameter of valve plug 10 is greater than the internal diameter of the feed pathway and the liquid outlet channel, and is less than the internal diameter of the valve plug chamber,
First positioning convex platform 13 is inserted in the feed pathway, and second positioning convex platform 14 is inserted in the liquid outlet channel
It is interior, and the outer diameter of first positioning convex platform 13 is less than the internal diameter of the feed pathway, the outer diameter of second positioning convex platform 14
Less than the internal diameter of the liquid outlet channel；When the sealing surface 111 of the valve plug 10 is close to the valve plug chamber close to the feed pathway
End face when, the feed pathway and the liquid outlet channel partition；When the sealing surface 111 of the valve plug 10 is far from the valve plug chamber
When close to the end face of the feed pathway, the end face of the step 12 abuts the other end of the valve plug chamber, and the feed liquor is logical
Road is connected to the liquid outlet channel.It is all beneficial to effect with above-mentioned valve plug 10 due to including valve plug 10 described above
Fruit is not cooked state one by one herein.
More specifically, in the present embodiment, open up that there are two go out liquid described in the feed pathway and two in the pump housing 20
Channel, for ease of description, two feed pathways are respectively the first feed pathway 21, the second feed pathway 24, two institutes
Stating liquid outlet channel is respectively the first liquid outlet channel 23, the second liquid outlet channel 26, first feed pathway 21 and first to go out liquid logical
It is connected between road 23 by the first valve plug chamber 22, is passed through between second feed pathway 24 and second liquid outlet channel 26
Second valve plug chamber is connected to 25, and plunger shaft 27, the liquid outlet connection of first liquid outlet channel 23 are also provided in the pump housing 20
The plunger shaft 27, the inlet of second feed pathway 24 are connected to the plunger shaft 27；The high-pressure pump structure includes
Two valve plugs are respectively for ease of description the first valve plug 30 and the second valve plug 40, and first valve plug 30 is set to described the
In one valve plug chamber 22, second valve plug 40 is set in the second valve plug chamber 25.
Specific work process can refer to shown in Fig. 5 and Fig. 6, as shown in figure 5, when piston rod pushes the piston in plunger shaft 27
It turns right when moving, high pressure is generated in plunger shaft 27, the water flow pressure of the first liquid outlet channel 23 is higher than the water of the first feed pathway 21
Flowing pressure, the sealing surface of the first valve plug 30 is close to the sealing of the right side of the first valve plug chamber 22 at this time, and the first valve plug 30, which is in, to close
Closed state, to block the fluid between the first liquid outlet channel 23 and the first feed pathway 21 to circulate, and at the same time, the second feed liquor
The water flow pressure in channel 24 is higher than the water flow pressure of the second liquid outlet channel 26, and the sealing surface of the second valve plug 40 goes out liquid towards second and leads to
The sliding of 26 one end of road, the second valve plug 40 is in the open state, and the fluid in plunger shaft 27 flows separately through the second feed pathway at this time
24, the second valve plug chamber 25, the second liquid outlet channel 26, the final fluid for flowing out high voltage state；When piston rod pulls in plunger shaft 27
Piston generates negative pressure, state as shown in FIG. 6 is switched to from Fig. 5 state, at this point, the first valve toward when moving left in plunger shaft 27
Plug 30 is moved to the left under the action of pressure difference, makes the sealing surface of the first valve plug 30 far from the right side of the first valve plug chamber 22, the
The step 12 of the left end of one valve plug 30 abuts the left side of the first valve plug chamber 22, the left side of the first valve plug 30 and the first valve plug chamber
There are gaps between 22 left side, and the first valve plug 30 is in the open state, and low pressure liquid is flowed into from the first feed pathway 21, and
Followed by the first valve plug chamber 22, recess 112, groove 141, the first liquid outlet channel 23, and plunger shaft 27 is finally flowed into, and and this
Meanwhile second valve plug 40 then slide to the left, seal face is adjacent to the left side of the second valve plug chamber 25, and the second valve plug 40, which is in, to close
Closed state.
In the present embodiment, for the ease of processing and assembling, offered in the pump housing 20 and first liquid outlet channel 26
First installation cavity of connection, is inserted with inlet tube 50 in first installation cavity, described in the Inner Constitution of inlet tube 50 first into
Liquid channel 21 is defined as the first valve plug chamber 22 between the bottom wall of first installation cavity and the end face of the inlet tube 50；
It is also provided with the second installation cavity being connected to second feed pathway 24 in the pump housing 20, is plugged in second installation cavity
There are outlet tube 60, the second liquid outlet channel 26 described in the Inner Constitution of the outlet tube 60, the bottom wall of second installation cavity and institute
It states and is defined as the second valve plug chamber 25 between the end face of outlet tube 60.
Similarly, in order to which more steadily inlet tube 50 and outlet tube 60 are installed on the pump housing 20, the inlet tube 50
It is also connected with fixing sleeve 70 with the outside of the outlet tube 60, the fixing sleeve 70 is sheathed on the outside of the pump housing 20.Example
Property, the fixing sleeve 70 includes the first fixing sleeve and the second fixing sleeve, is connected to inlet tube 50 and outlet tube 60
Outside.
When opening up single plunger shaft 27 in the pump housing, due to realizing the first valve plug 30 by the reciprocating motion of a piston
With unlatching and closing for the second valve plug 40, plunger shaft 27 is only able to achieve single water inlet or water outlet in the same time, therefore is
Output endlessly high-pressure fluid, offers at least two plunger shafts 27 on the pump housing 20, on the pump housing 20
Offer several plunger shafts 27 first feed pathway 21 of corresponding setting, the first liquid outlet channel 23, the second feed pathway one by one
24, the second liquid outlet channel 26；Each first feed pathway 21 is connected by water supply connector 80, and each described second, which goes out liquid, leads to
Road 26 is connected by water outlet connector 90.It is respectively arranged with piston in corresponding multiple plunger shafts 27, is between each piston
Asynchronous movement, it is thus possible to realize that low pressure water flow endlessly inputs and high pressure water flow continually exports.In the present embodiment,
There are two the plunger shafts 27 for preferred design.
The utility model third aspect preferred embodiment provides a kind of valve plug encapsulating method based on above-mentioned high-pressure pump structure,
The specific steps are that:
When the Fluid pressure in liquid outlet channel is lower than Fluid pressure in feed pathway, fluid impact valve plug to it is described go out
The sliding of liquid one end of the channel, the end face of the step 12 abut valve plug chamber close to the bottom wall of liquid outlet channel, to make plug body 11
There are gap between the end face of its sealing surface 111 and the bottom wall of valve plug chamber, the fluid of liquid outlet channel passes through the valve respectively
Chamber, recess 112, groove 141 are filled in, is finally flowed into liquid outlet channel, until in the Fluid pressure and feed pathway in liquid outlet channel
Fluid pressure balance each other；When the Fluid pressure in liquid outlet channel is higher than the Fluid pressure in the feed pathway, fluid punching
It hits valve plug 10 to slide to described feed pathway one end, when fluid flows through the end face that the plug body 11 deviates from its sealing surface 111
When, fluid flow direction changes 60 ° -150 °, and the fluid positioned at the central axis direction of the plug body 11 passes to momentum
Valve plug 10, the sealing surface 111 of valve plug 10 are close to the bottom wall of the valve plug chamber, and feed pathway and liquid outlet channel separate.
To sum up, the utility model embodiment provide a kind of valve plug 10, including its high-pressure pump structure and based on the high pressure
The valve plug encapsulating method of pump configuration, valve plug 10 are the shape being gradually increased from one end of sealing surface 111 to other end diameter, can be subtracted
Resistance when small fluid flows into liquid outlet channel from feed pathway, and in 10 closing process of valve plug, it can be improved fluid energy
It is transmitted to the transmission efficiency of valve plug 10, and then shortens the sealing response time, to improve the efficiency of high-pressure pump；And structure is simple, valve
The sealing surface 111 of plug 10 can be set as the various shapes such as spherical surface, the conical surface or plane, can accordingly drop while guaranteeing sealing effect
Low difficulty of processing.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of valve plug, which is characterized in that including plug body, an end face of the plug body is set as sealing surface, institute
It states plug body and one end of the sealing surface is provided with step；The plug body from one end of sealing surface to the other end its
Outer diameter is gradually increased.
2. valve plug as described in claim 1, which is characterized in that the plug body is in a circular table shape.
3. valve plug as described in claim 1, which is characterized in that the sealing surface of the plug body is plane, spherical surface and the conical surface
In one of which.
4. valve plug as described in claim 1, which is characterized in that at least one end of the plug body is provided with along central shaft
Outwardly extending positioning convex platform.
5. valve plug as described in claim 1, which is characterized in that the both ends of the plug body are provided with positioning convex platform,
In, the first positioning convex platform is provided on the sealing surface, the plug body is provided with second away from the end face of the sealing surface
Positioning convex platform；The plug body offers recess away from the end face of the sealing surface, offers on second positioning convex platform
With the groove for being recessed and being connected to.
6. a kind of high-pressure pump structure, which is characterized in that including the pump housing and valve plug according to any one of claims 1 to 5, institute
The both ends for stating plug body are provided with positioning convex platform, wherein the first positioning convex platform, the valve plug are provided on the sealing surface
Ontology is provided with the second positioning convex platform away from the end face of the sealing surface；The plug body is opened away from the end face of the sealing surface
Equipped with recess, offered on second positioning convex platform and the groove for being recessed and being connected to；
Feed pathway and liquid outlet channel are offered on the pump housing, pass through valve plug between the feed pathway and the liquid outlet channel
Chamber connection, the internal diameter of the valve plug chamber are greater than the internal diameter of the feed pathway and the liquid outlet channel；
The valve plug is slidably set to that the valve plug is intracavitary, the maximum outside diameter of the valve plug be greater than the feed pathway and it is described go out
The internal diameter in liquid channel, and it is less than the internal diameter of the valve plug chamber, first positioning convex platform is inserted in the feed pathway, described
Second positioning convex platform is inserted in the liquid outlet channel, and the outer diameter of first positioning convex platform is less than the interior of the feed pathway
Diameter, the outer diameter of second positioning convex platform are less than the internal diameter of the liquid outlet channel；
When the sealing surface of the valve plug is close to the valve plug chamber close to the end face of the feed pathway, the feed pathway and institute
State liquid outlet channel partition；When the sealing surface of the valve plug far from the valve plug chamber close to the end face of the feed pathway when, it is described
The end face of step abuts the other end of the valve plug chamber, and the feed pathway is connected to the liquid outlet channel.
7. high-pressure pump structure as claimed in claim 6, which is characterized in that the feed pathway there are two being opened up in the pump housing
With two liquid outlet channels, two feed pathways are respectively the first feed pathway, the second feed pathway, are gone out described in two
Liquid channel is respectively the first liquid outlet channel, the second liquid outlet channel, is passed through between first feed pathway and the first liquid outlet channel
The connection of first valve plug chamber, is connected between second feed pathway and second liquid outlet channel by the second valve plug chamber, described
Plunger shaft is also provided in the pump housing, first liquid outlet channel, the second feed pathway are connected to the plunger shaft；
The high-pressure pump structure includes two valve plugs, is respectively the first valve plug and the second valve plug, and first valve plug is set to institute
It is intracavitary to state the first valve plug, it is intracavitary that second valve plug is set to second valve plug.
8. high-pressure pump structure as claimed in claim 7, which is characterized in that offer that go out liquid with described first logical in the pump housing
First installation cavity of road connection, is inserted with inlet tube, the first feed liquor described in the Inner Constitution of inlet tube in first installation cavity
Channel is defined as the first valve plug chamber between the bottom wall of first installation cavity and the end face of the inlet tube；
It is also provided with the second installation cavity being connected to second feed pathway in the pump housing, is plugged in second installation cavity
There are outlet tube, the second liquid outlet channel described in the Inner Constitution of the outlet tube, the bottom wall of second installation cavity and the liquid out
The second valve plug chamber is defined as between the end face of pipe.
9. high-pressure pump structure as claimed in claim 8, which is characterized in that the outside of the inlet tube and the outlet tube also connects
It is connected to fixing sleeve, the fixing sleeve is sheathed on the outside of the pump housing.
10. high-pressure pump structure as claimed in any one of claims 7-9, which is characterized in that offered at least on the pump housing
Two plunger shafts, offering several plunger shafts on the pump housing, the first feed pathway of corresponding setting, first go out one by one
Liquid channel, the second feed pathway, the second liquid outlet channel；Each first feed pathway is connected by water supply connector, each described
Second liquid outlet channel is connected by water outlet connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706656.5U CN209309455U (en) | 2018-10-19 | 2018-10-19 | A kind of valve plug and high-pressure pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821706656.5U CN209309455U (en) | 2018-10-19 | 2018-10-19 | A kind of valve plug and high-pressure pump structure |
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| Publication Number | Publication Date |
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| CN209309455U true CN209309455U (en) | 2019-08-27 |
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| CN201821706656.5U Active CN209309455U (en) | 2018-10-19 | 2018-10-19 | A kind of valve plug and high-pressure pump structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140041A (en) * | 2018-10-19 | 2019-01-04 | 惠州海卓科赛医疗有限公司 | Valve plug, high-pressure pump structure and valve plug encapsulating method |
-
2018
- 2018-10-19 CN CN201821706656.5U patent/CN209309455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140041A (en) * | 2018-10-19 | 2019-01-04 | 惠州海卓科赛医疗有限公司 | Valve plug, high-pressure pump structure and valve plug encapsulating method |
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