CN209480316U - A kind of external spring type pump core - Google Patents
A kind of external spring type pump core Download PDFInfo
- Publication number
- CN209480316U CN209480316U CN201821869907.1U CN201821869907U CN209480316U CN 209480316 U CN209480316 U CN 209480316U CN 201821869907 U CN201821869907 U CN 201821869907U CN 209480316 U CN209480316 U CN 209480316U
- Authority
- CN
- China
- Prior art keywords
- compression bar
- pump
- guide part
- force
- applying piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of external spring type pump cores, including being equipped with the valve body of pump valve, in interference fit with the pump plug of valve body one end, the compression bar being embedded in pump plug, the connecting rod that is embedded in compression bar and the piston being sheathed on outside connecting rod, the compression bar, connecting rod and piston are linked together, pressing spring is arranged with outside the compression bar, the pressing both ends of the spring is pushed against respectively in compression bar and pump plug, the compression bar is located at one end periphery in valve body and is equipped with stop bit muscle, and the stop bit muscle is connected to pump plug and is located at one end end wall in valve body.Since stop bit muscle outer diameter is greater than the size of pump plug inner hole after compression bar passes through pump plug, under the action of pressing spring force, compression bar can block pump plug, and pump plug not readily disengages from compression bar.Therefore in automatic assembling, the process of more assembling precompressed automatic together is not being needed to be pressed by automatic assembling device as long as putting on piston and connecting rod again in proper order after completing this procedure, improve production efficiency.
Description
Technical field
The utility model relates to pump cores, and in particular to a kind of external spring type pump core.
Background technique
With the development of market economy, the increasingly raising of living standards of the people, various cosmetics come into public people seeking beauty
Pocket and Bao Bao, wherein the product of lotion skin type also occupies the consumer group of most, and on lotion pump and Dewar bottle
Vacuum pump and the suction pipe pump used becomes an important highland of cosmetics packaging material supplier production, and the two pump core part is
For the pump housing whether there is or not side opening difference, remaining accessory is identical.
Existing pump core, such as the patent that Authorization Notice No. is CN105035506B, a kind of spring external of the patent disclosure
Pump core and its application method.The pump housing Single port and bayonet mount interference seal of the pump core fasten, and one end of valve rod passes through bayonet mount
Protrude into the pump housing, valve rod is linked together with needle one end fitting, and the outer diameter of valve rod is equipped with spring, the both ends of spring respectively with valve rod
The port outside diameter and bayonet mount of the other end offset, and pump intracorporal needle outer diameter equipped with piston, pump intracorporal other end inlet opening
Equipped with guided missile；Its main points is the T-shaped screw of the needle, the catching groove and valve rod centre bore internal diameter two that needle passes through nail tip outer diameter
The symmetrically arranged button bit fastening in side is linked together；The centre bore inner diameter wall of valve rod is equipped with valve rod rib, and the inner diameter wall of piston is equipped with
Piston rib；Liquid flows into valve rod by the piston rib of piston and the valve rod rib of valve rod.
When work, depressed stem is opened between piston and needle, and liquid passes through the gap between needle and pump housing inner wall,
The gap between piston, valve rod and needle is flowed into, and is flowed out from valve rod.
And present pump core is assembled, it needs first valve rod, spring to be installed on bayonet mount for first, and use automatic machinery
Spring and bayonet mount precompressed are combined, then second could organize needle and piston again, last third road again with the pump housing and pump
Valve is assembled, since assembling flow path is more, relatively time-consuming in the process.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of external spring type pump core, it can
Improve production efficiency.
To achieve the above object, the utility model provides following technical solution:
A kind of external spring type pump core, including be equipped with pump valve valve body, in interference fit with valve body one end pump plug, be embedded at
Compression bar, the connecting rod being embedded in compression bar and the piston being sheathed on outside connecting rod, the compression bar, connecting rod and piston in pump plug are linked as one
Body, the compression bar are arranged with pressing spring outside, and the pressing both ends of the spring is pushed against respectively in compression bar and pump plug, and the compression bar is located at
One end periphery is equipped with stop bit muscle in valve body, and the stop bit muscle is connected to pump plug and is located at one end end wall in valve body.
By using above-mentioned technical proposal, since stop bit muscle outer diameter is greater than pump plug inner hole after compression bar passes through pump plug
Size, under the action of pressing spring force, compression bar can block pump plug, and pump plug not readily disengages from compression bar.Therefore in automatic assembling,
The process of more assembling precompressed automatic together is not being needed to pass through as long as putting on piston and connecting rod again in proper order after completing this procedure
Automatic assembling device is pressed, and production efficiency is improved.
The utility model is further arranged to: the stop bit muscle is inclined to set far from pump valve side side.
By using above-mentioned technical proposal, to make compression bar that can be inserted into pump plug along inclined-plane, installation is facilitated.
The utility model is further arranged to: the stop bit muscle is far from institute's shape between pump plug side side and pump plug axial direction
At angle be 65 °~75 °.
By using above-mentioned technical proposal, when being in the angle, compression bar can be easily pressed into pump plug, while stop bit
Muscle can also keep enough structural strengths, to limit pump plug, prevent compression bar from leaving pump plug under the action of by pressing spring.
The utility model is further arranged to: the pump plug inner wall offers sliding slot, the sliding slot along its length
It is inside fixed with executive item, the compression bar is rotationally connected with pump plug, and it is in circumferentially fixed force that the compression bar, which is equipped with compression bar,
Part, the force-applying piece are located in sliding slot and are located at executive item towards pump valve side, the force-applying piece and sliding slot towards pump valve one end
It is equipped with limit spring between end wall, is equipped between the force-applying piece and executive item for rotating force-applying piece and edge with force-applying piece
Compression bar, which is axially moved and is maintained at limit spring, is compressed to extreme position or limit spring in the gear of nature position
Structure.
By using above-mentioned technical proposal, in travelling or transportational process, if no longer needing to carry out extrudate by moulded rod
Material.Compression bar can be rotated relative to pump plug, so that limit spring is in the state for being compressed to the limit, at this point, compression bar can not be further continued for down
Pressure, then due to maloperation, will not cause material to be forced out during transportation.When that need to continue to use, it is rotated further by compression bar, is made
It is moved towards executive item, and limit spring is made to reset to the state that can be compressed.
The utility model is further arranged to: the linkage mechanism includes in the first guide part of circular arc setting and in circle
Second guide part of arc setting, first guide part are located at force-applying piece back to limit spring side, second guide part position
In executive item towards force-applying piece side, the first guide part is inclined to set to form the first guide surface towards second guide part one end,
Second guide part is equipped with the second guide surface cooperated with the first guide surface, offers on the executive item or force-applying piece for making to hold
Row part and force-applying piece are clamped circumferentially fixed card slot relatively.
By using above-mentioned technical proposal, when that need to make pump core that can not work, rotation urging part turns the first guide part
Dynamic, after the first guide part turns to certain angle, one end of the second guide part towards the first guide part can be embedded in card slot, or
One end of the first guide part of person towards the second guide part can be embedded in card slot, and force-applying piece is farthest apart from executive item at this time, to make
Limit spring is in the state for being compressed to the limit.
The utility model is further arranged to: the sliding slot is annular, and the executive item is cylinder type, and described second leads
It is circumferentially with several along the chute to part.
By using above-mentioned technical proposal, so that compression bar is made to be not required to invert, as soon as it need to only be constantly being directed towards a direction rotation, energy
Realize can opposite pump plug sliding and can not two states of opposite pump plug sliding switching.
The utility model is further arranged to: first guide part is equipped with several along compression bar periphery, the card slot
Positioned at the second guide part towards first guide part one end, first guide part one end is inclined to set to form third guide surface, and first
Guide surface and third guide surface form the end angle being arranged in obtuse angle, and the end angle of the card slot and the first guide part is similar triangle
Shape.
By using above-mentioned technical proposal, rotation urging part rotates the first guide part, when the first guide part turns to one
After determining angle, the second guide part direction the first guide part one end can be embedded in card slot, at this time force-applying piece apart from executive item most
Far, so that limit spring be made to be in the state for being compressed to the limit, make pump core that can not work.Simultaneously increase the first guide part and
The contact point of second guide part, and then be axially moved force-applying piece can by more stable drives edge compression bar.When pump core need to being made to work
When, force-applying piece is continued to rotate, leaves the first guide part out of card slot, force-applying piece is under the action of limit spring towards executive item
Movement, makes spring be restored to nature, compression bar can be pushed normally at this time.Compression bar is realized with respect to pump plug sliding and opposite can not be pumped
The switching of plug two states of sliding.
The utility model is further arranged to: the force-applying piece is cylinder type and fixing sleeve is set to outside compression bar.
By using above-mentioned technical proposal, force-applying piece need to be only fixedly welded on outside compression bar, install convenient.
The utility model is further arranged to: the force-applying piece is arranged radially along compression bar and radially slides connection along compression bar
In compression bar；When the connecting rod is embedded in compression bar, in the force-applying piece and the first guide part insertion sliding slot.
By using above-mentioned technical proposal, when in connecting rod insertion compression bar, force application rod is towards runner movement, into sliding slot
In, only common process for pressing is needed to can be realized, installation cost is low.
The utility model has the advantage that 1, high production efficiency；2, material in transportational process can be reduced to be pressed out
The probability come.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the structural schematic diagram of embodiment two；
Fig. 4 is the enlarged drawing in Fig. 3 at B；
Fig. 5 is structural schematic diagram of the embodiment two at linkage mechanism；
Fig. 6 is the structural schematic diagram of embodiment three；
Fig. 7 is the enlarged drawing in Fig. 6 at C.
Appended drawing reference: 1, valve body；2, pump plug；3, compression bar；4, connecting rod；5, piston；6, pump valve；7, the first connector；8,
One locating part；9, the second connector；10, the second locating part；11, pressing spring is pressed；12, stop bit muscle；13, sliding slot；14, executive item；
15, force-applying piece；16, the first guide part；17, the second guide part；18, the first guide surface；19, the second guide surface；20, card slot；21,
Limit spring；22, third guide surface.
Specific embodiment
Embodiment one:
As shown in Figure 1, a kind of external spring type pump core, including valve body 1, pump plug 2, compression bar 3, connecting rod 4 and piston 5.Valve body 1
One end is equipped with pump valve 6.Pump plug 2 includes the first connector 7 being inserted into valve body 1 far from 6 one end of pump valve and is fixed at the first company
First locating part 8 of 7 periphery of fitting, the first connector 7 is with valve body 1 in interference fit.First locating part 8 is located at the first connector
7 far from 6 one end of pump valve, and the first locating part 8 is connected to valve body 1 far from 6 one end end wall of pump valve.Compression bar 3 includes that insertion pump plug 2 is remote
The second connector 9 from 6 one end of pump valve and the second locating part 10 for being fixed at 9 periphery of the second connector, the second locating part
10 are located at compression bar 3 far from 6 one end of pump valve.It is arranged with pressing spring 11 outside second connector 9, is located at the second limit by pressing spring 11
Between part 10 and the first locating part 8, and the first locating part 8 and the second locating part 10 are pushed against by pressing spring 11.Connecting rod 4 is inserted in
Two connectors 9 are close to 6 one end of pump valve.Piston 5 is sheathed on connecting rod 4 close to 6 one end of pump valve.Compression bar 3, connecting rod 4 and piston 5 are linked as
One.
As depicted in figs. 1 and 2, the second connector 9 is equipped with stop bit muscle 12 towards 6 one end periphery of pump valve.Stop bit muscle 12 abuts
In the first connector 7 close to 6 one end end wall of pump valve.Stop bit muscle 12 is inclined to set far from 6 side side of pump valve.Stop bit muscle 12 is remote
It is 74 ° from angle is formed by between 2 side side of pump plug and 2 axial direction of pump plug.
The mounting process of the pump core is as follows:
1, compression bar 3 is passed through into pump plug 2, since 12 outer diameter of stop bit muscle is greater than the size of 2 inner hole of pump plug, presses pressing spring
Under the action of 11 elastic force, compression bar 3 can block pump plug 2, and pump plug 2 not readily disengages from compression bar 3；Not needing will be by 11 precompressed of pressing spring
In pump plug 2, production efficiency is improved；
2, in proper order put on piston 5 and connecting rod 4 again outside pump plug 2, pressed by automatic assembling device, pump core it is upper
Half part is just combined and is completed；
3, the lower half portion pump housing and pump valve 6 of pump core are combined by automatic machine；
4, then pump core combination again passes by the pump core that mounter just completes a whole branch by limiting assembling up and down
Combination.
Embodiment two:
The difference of embodiment two and embodiment one is,
As shown in Figure 3 and Figure 4,7 inner wall of the first connector offers sliding slot 13 along its length, and sliding slot 13 is annular.
Executive item 14 is fixed in sliding slot 13, executive item 14 is cylinder type and is fixedly connected on sliding slot 13 far from 6 one end end of pump valve
Wall.3 fixed sleeves of compression bar are equipped with force-applying piece 15, and force-applying piece 15 is located in sliding slot 13 and is located at executive item 14 towards 6 side of pump valve.
Force-applying piece 15 and sliding slot 13 are towards being equipped with limit spring 21 between 6 one end end wall of pump valve.Limit spring 21 is circumferentially with along annular groove
Several.
As shown in figure 4, being equipped with linkage mechanism between force-applying piece 15 and executive item 14, linkage mechanism is circumferential including along the chute 13
The first guide part 16 for being arranged and along the chute 13 the second guide part 17 being circumferentially arranged.First guide part 16 is located at force-applying piece 15
Back to 21 side of limit spring, and the first guide part 16 13 is circumferentially with several along the chute.Second guide part 17, which is located at, to be executed
Part 14 13 is circumferentially with several along the chute towards 15 side of force-applying piece, the second guide part 17, the quantity of the second guide part 17 with
The quantity of first guide part 16 is identical.As shown in figure 5, the first guide part 16 is inclined to set shape towards 17 one end of the second guide part
At the first guide surface 18, the second guide part 17 is equipped with the second guide surface 19 cooperated with the first guide surface 18.First guide part 16
One end is inclined to set to form third guide surface 22, and the first guide surface 18 and third guide surface 22 form the end being arranged in obtuse angle
Angle.Second guide part 17 offers card slot 20,16 one end end angle of card slot 20 and the first guide part towards 16 one end of the first guide part
For similar triangles.When in the first guide part 16 insertion card slot 20, limit spring 21 is compressed to the limit.
In travelling or transportational process, if no longer needing by moulded rod 3, to extrude material.Compression bar can be rotated relative to pump plug 2
3, force-applying piece 15 rotates at this time, rotates the first guide part 16, after the first guide part 16 turns to certain angle, the second guiding
One end of the first guide part 16 of direction of part 17 can be embedded in card slot 20, and force-applying piece 15 is farthest apart from executive item 14 at this time, thus
Limit spring 21 is set to be in the state for being compressed to the limit.Therefore compression bar 3 can not be slided with respect to pump plug 2 again, will not be generated due to accidentally
The case where operating and compression bar 3 caused to slide with respect to pump plug 2, and being forced out material.If needing in use, pressure can be continued to rotate
Bar 3, force-applying piece 15 rotates at this time, rotates the first guide part 16, and the first guide part 16 is produced out of card slot 20, in limit bullet
The state for being connected to the second guide surface 19 is restored under the action of spring 21, limit spring 21 is in nature at this time, and compression bar 3 can phase
Pump plug 2 is slided, which can normal use.
Embodiment three:
The difference of embodiment three and embodiment two is, as shown in Figure 6 and Figure 7, force-applying piece 15 be arranged radially along compression bar 3 and
It is radially slided along compression bar 3 and is connected to compression bar 3, force-applying piece 15 13 is circumferentially with several along the chute.When connecting rod 4 is embedded at compression bar 3
When interior, in force-applying piece 15 and the first guide part 16 insertion sliding slot 13.
The mounting process of the pump core is as follows:
1, compression bar 3 is passed through into pump plug 2, since 12 outer diameter of stop bit muscle is greater than the size of 2 inner hole of pump plug, presses pressing spring
Under the action of 11 elastic force, compression bar 3 can block pump plug 2, and pump plug 2 not readily disengages from compression bar 3；Not needing will be by 11 precompressed of pressing spring
In pump plug 2, production efficiency is improved；
2, force-applying piece 15 is inserted on compression bar 3；
3, in proper order put on piston 5 and connecting rod 4 again outside pump plug 2, pressed by automatic assembling device, pump core it is upper
Half part is just combined and is completed；When connecting rod 4 is inserted into compression bar 3, force application rod is moved towards sliding slot 13, into sliding slot 13, only
Common process for pressing is needed to can be realized, installation cost is low；
4, the lower half portion pump housing and pump valve 6 of pump core are combined by automatic machine；
5, then pump core combination again passes by the pump core that mounter just completes a whole branch by limiting assembling up and down
Combination.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of external spring type pump core, including being equipped with the valve body (1) of pump valve (6), in interference fit with the pump plug of valve body (1) one end
(2), the compression bar (3) that is embedded in pump plug (2), the connecting rod (4) being embedded in compression bar (3) and it is sheathed on the piston of connecting rod (4) outside
(5), the compression bar (3), connecting rod (4) and piston (5) are linked together, and pressing spring (11) is arranged with outside the compression bar (3), described
It is pushed against respectively by pressing spring (11) both ends in compression bar (3) and pump plug (2), it is characterized in that: the compression bar (3) is located in valve body (1)
One end periphery is equipped with stop bit muscle (12), and the stop bit muscle (12) is connected to pump plug (2) and is located at the interior one end end wall of valve body (1).
2. a kind of external spring type pump core according to claim 1, it is characterized in that: the stop bit muscle (12) is far from pump valve
(6) side side is inclined to set.
3. a kind of external spring type pump core according to claim 2, it is characterized in that: the stop bit muscle (12) is far from pump plug
(2) it is 65 ° ~ 75 ° that angle is formed by between side side and pump plug (2) axial direction.
4. a kind of external spring type pump core according to claim 1, it is characterized in that: the pump plug (2) inner wall is along its length
Direction offers sliding slot (13), is fixed with executive item (14) in the sliding slot (13), the compression bar (3) is rotationally connected with pump plug
(2), it is in circumferentially fixed force-applying piece (15) that the compression bar (3), which is equipped with compression bar (3), and the force-applying piece (15) is located at sliding slot
(13) in and it is located at executive item (14) towards pump valve (6) side, the force-applying piece (15) and sliding slot (13) towards pump valve (6) one end
Between end wall be equipped with limit spring (21), between the force-applying piece (15) and executive item (14) equipped with for make force-applying piece (15) with
Force-applying piece (15) rotation and be axially moved along compression bar (3) and be maintained at limit spring (21) and be compressed to extreme position or limit
Spring (21) is in the linkage mechanism of nature position.
5. a kind of external spring type pump core according to claim 4, it is characterized in that: the linkage mechanism includes setting in circular arc
The first guide part (16) set and the second guide part (17) being arranged in circular arc, first guide part (16) are located at force-applying piece
(15) back to limit spring (21) side, second guide part (17) is located at executive item (14) towards force-applying piece (15) side,
First guide part (16) is inclined to set to form the first guide surface (18), the second guide part towards the second guide part (17) one end
(17) it is equipped with the second guide surface (19) cooperated with the first guide surface (18), is opened up on the executive item (14) or force-applying piece (15)
Have for making executive item (14) and force-applying piece (15) be clamped circumferentially fixed card slot (20) relatively.
6. a kind of external spring type pump core according to claim 5, it is characterized in that: the sliding slot (13) is annular, it is described
Executive item (14) is cylinder type, and second guide part (17) is circumferentially with several along the chute (13).
7. a kind of external spring type pump core according to claim 6, it is characterized in that: first guide part (16) is along compression bar
(3) periphery is equipped with several, and the card slot (20) is located at the second guide part (17) towards the first guide part (16) one end, and first leads
It is inclined to set to be formed third guide surface (22) to part (16) one end, the first guide surface (18) and third guide surface (22) formation are in
The end angle of obtuse angle setting, and the end angle of the card slot (20) and the first guide part (16) is similar triangles.
8. a kind of external spring type pump core according to claim 7, it is characterized in that: the force-applying piece (15) be cylinder type and
Fixing sleeve is set to compression bar (3) outside.
9. a kind of external spring type pump core according to claim 7, it is characterized in that: the force-applying piece (15) is along compression bar (3)
It is arranged radially and is radially slided along compression bar (3) and be connected to compression bar (3)；When the connecting rod (4) be embedded at compression bar (3) it is interior when, it is described
In force-applying piece (15) and the first guide part (16) insertion sliding slot (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869907.1U CN209480316U (en) | 2018-11-14 | 2018-11-14 | A kind of external spring type pump core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821869907.1U CN209480316U (en) | 2018-11-14 | 2018-11-14 | A kind of external spring type pump core |
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| Publication Number | Publication Date |
|---|---|
| CN209480316U true CN209480316U (en) | 2019-10-11 |
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ID=68115777
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821869907.1U Active CN209480316U (en) | 2018-11-14 | 2018-11-14 | A kind of external spring type pump core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649821A (en) * | 2018-11-14 | 2019-04-19 | 杭州余杭振华日化玻璃有限公司 | A kind of external spring type pump core |
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2018
- 2018-11-14 CN CN201821869907.1U patent/CN209480316U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649821A (en) * | 2018-11-14 | 2019-04-19 | 杭州余杭振华日化玻璃有限公司 | A kind of external spring type pump core |
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