CN112570163A - External spring pump core device - Google Patents
External spring pump core device Download PDFInfo
- Publication number
- CN112570163A CN112570163A CN202011543970.8A CN202011543970A CN112570163A CN 112570163 A CN112570163 A CN 112570163A CN 202011543970 A CN202011543970 A CN 202011543970A CN 112570163 A CN112570163 A CN 112570163A
- Authority
- CN
- China
- Prior art keywords
- locking
- pump
- pump rod
- spring
- locking cover
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000012356 Product development Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
- B05B11/1001—Piston pumps
-
- 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
Abstract
The invention discloses an external spring pump core device, which comprises a pump body, an upper pump rod, a piston and a locking cover, wherein the pump body comprises an upper cavity and a lower cavity which are of a stepped structure, the locking cover comprises a clamping part clamped and fixed at the lower part of the upper cavity, a locking part extending upwards into the upper cavity and a limiting part extending downwards into the lower cavity, the locking cover is hollow, the upper pump rod is positioned at the inner side of the locking cover, the upper end of the upper pump rod penetrates through the locking cover and is connected with a press head, the lower end of the upper pump rod penetrates through the locking cover and is connected with the piston, a spring is sleeved at the outer side of the upper pump rod and is arranged in the locking cover, a supporting part protruding inwards to support the spring is arranged at the lower part of the locking cover, a jacking boss for the spring to jack upwards is arranged on the outer side surface of the upper pump rod, and a one-way valve for liquid to enter is arranged at, the device has the characteristics of simple structure, easy assembly and flexible application.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to an external spring pump core device.
[ background of the invention ]
The existing pressing pump mostly adopts the structural design of a built-in spring, and a metal spring is in direct contact with a material body, so that the metal spring is easy to corrode and is not environment-friendly enough. The push pump is generally of an integral structure, namely, the pump core, the lock bottle cap and the press head are assembled and fixed together, and the lock bottle cap and the like are fixed on the pump core through the lock cap during assembly, so that the push pump is not flexible to use. Or when the push pump is integrally assembled, the locking structure is usually arranged inside the upper pump rod and the locking cover, so that the manufacturing cost of parts is high.
The present invention has been made based on such a situation.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provides an external spring pump core device which has the characteristics of simple structure, sanitation, safety, flexible use and low manufacturing cost.
The invention is realized by the following technical scheme:
the utility model provides an external spring pump core device, includes the pump body, goes up pump stem, piston and locking lid, the pump body includes ladder structure's last cavity and lower cavity, locking lid is fixed at the joint portion of the lower part of last cavity including the joint to and upwards stretch into the locking portion in last cavity and stretch into the spacing portion in cavity down downwards, locking lid cavity and last pump stem are located locking lid inboard, go up the pump stem upper end and pass locking lid and be used for being connected with the press head, the lower extreme passes locking lid and is connected with the piston, it is equipped with the spring to go up pump stem outside cover, the spring is established in locking lid, locking lid lower part is equipped with the supporting part that inwards extrudees and be used for supporting spring, be equipped with the roof pressure boss that supplies the spring roof pressure upwards on the lateral surface of last pump stem upper portion, the lower extreme that lies in cavity down in the pump body is equipped with the check valve that supplies liquid to get into.
The external spring pump core device is characterized in that a gap for enabling the pressing head to slide up and down is reserved between the inner wall of the upper cavity and the locking portion, a guide groove is formed in the locking portion, a guide plate for enabling the pressing head to be clamped in from the guide groove in a rotating mode when the pressing head bounces is arranged at the upper end of the locking portion, a locking step for limiting the downward movement of the guide plate is formed in the locking step, a locking boss for preventing the guide plate from being separated from the locking step by itself and falling into the guide groove is arranged on the locking step, and a baffle for blocking the guide plate from rotating is arranged on the other side, located on the locking boss, of the locking step.
According to the external spring pump core device, a guide angle is arranged between the locking step and the guide groove, and the piston is provided with an inner sleeve capable of jacking against the bottom of the supporting part when the upper pump rod bounces.
The external spring pump core device is characterized in that the inner diameter of the upper cavity of the pump body is larger than that of the lower cavity, the lower part of the upper cavity is provided with an annular boss protruding inwards, the bottom of the upper cavity is located below the boss, an annular buckling groove recessed laterally is formed below the boss, the boss and the buckling groove are connected up and down to form an S-shaped buckling structure, the outer side of the clamping portion is provided with a buckling ring buckled into the buckling groove and a concave ring for clamping the boss, and a plurality of ribs which are in interference fit with the locking cover are arranged above the boss in the pump body at intervals in the circumferential direction and are used for preventing the locking cover and the pump body from rotating and loosening.
According to the external spring pump core device, the upper pump rod is hollow, the lower end of the upper pump rod is sealed, the lower portion of the upper pump rod is provided with the side opening communicated with the inside of the upper pump rod, the upper portion and the lower portion of the upper pump rod, which are positioned at the side opening, are provided with the upper limiting table and the lower limiting table, the piston is provided with the movable sleeve capable of moving up and down between the upper limiting table and the lower limiting table, the lower end of the movable sleeve is provided with the sealing ring which can be matched with the lower limiting table to realize sealing connection, and the communication between the inside of the upper pump rod and the lower chamber is cut off when the lower limiting table presses the sealing ring; when the upper pump rod moves downwards, the lower limiting table is separated from the sealing ring downwards, the upper pump rod is communicated with the lower cavity through the side opening, the upper limiting table can be pressed at the upper end of the movable sleeve after moving downwards for a certain distance to push the piston to move downwards together, when the upper limiting table is pressed at the upper end of the movable sleeve, the upper limiting table and the movable sleeve are in sealed connection, and the upper end of the piston is provided with a convex ring which protrudes inwards and is in interference fit with the outer side wall of the upper pump rod to be in sealed connection.
The external spring pump core device comprises a ball, wherein the ball is arranged in the one-way valve.
According to the external spring pump core device, the sealing gasket is sleeved on the outer side of the upper end of the pump body.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, few components, easy assembly and low manufacturing cost.
2. In the external spring pump core device, the locking cover is fixed with the pump body through the clamping part, the spring is positioned in the locking cover and is limited between the supporting part and the jacking boss, the piston is sleeved on the upper pump rod and is jacked at the bottom of the locking cover when the spring bounces, so that the upper pump rod and the spring are prevented from being separated, and an integral body capable of being independently stored and transported is formed, so that the external spring pump core device can be used as a standard component, different press heads and lock bottle caps can be matched according to needs in the subsequent production and assembly processes, the requirements of different customers and use occasions are met, the use flexibility is increased, and the product development and manufacturing cost is reduced.
3. The channel for conveying the material body is positioned in the upper pump rod, and the spring is positioned outside the upper pump rod, so that the contact between the spring and the material body can be avoided, the material body can be prevented from being corroded and polluted, and the corrosion of the metallic spring can also be avoided.
[ description of the drawings ]
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is an exploded view of an external spring pump core assembly of the present invention;
FIG. 2 is a cross-sectional view of an external spring pump core assembly of the present invention;
FIG. 3 is a schematic view of the locking cap;
FIG. 4 is a schematic view of a button head;
fig. 5 is a schematic structural view of a push pump using an external spring pump core device of the present invention.
[ detailed description ] embodiments
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 3, an external spring pump core device includes a pump body 1, an upper pump rod 3, a piston 4 and a locking cover 6, wherein the pump body 1 includes an upper chamber 11 and a lower chamber 12 having a stepped structure, the locking cover 6 includes a clamping portion 61 clamped and fixed at a lower portion of the upper chamber 11, a locking portion 62 extending upward into the upper chamber 11, and a limiting portion 63 extending downward into the lower chamber 12, the locking cover 6 is hollow, the upper pump rod 3 is located inside the locking cover 6, an upper end of the upper pump rod 3 passes through the locking cover 6 and is connected with a press head 2, a lower end of the upper pump rod 3 passes through the locking cover 6 and is connected with the piston 4, a spring 7 is sleeved outside the upper pump rod 3, the spring 7 is arranged inside the locking cover 6, a supporting portion 64 protruding inward to support the spring 7 is arranged at a lower portion of the locking cover 6, a pressing boss 31 for pressing the spring 7 upward is arranged on an outer side surface of an upper portion of the upper pump rod, the lower extreme that lies in cavity 12 down in the pump body 1 is equipped with the check valve 8 that supplies liquid to get into, check valve 8 includes ball 81, and simple structure easily produces and makes.
Among the above-mentioned external spring pump core device, locking lid 6 is fixed with the pump body 1 through joint portion 61, spring 7 is located locking lid 6 and inject between supporting part 64 and roof pressure boss 31, piston 4 cover is on last pump rod 3 and roof pressure is in locking lid 6 bottom and prevent to go up pump rod 3 and spring and deviate from when spring 7 bounces last pump rod 3, thereby form the whole that can independent storage and transportation, make this external spring pump core device can regard as a standard component, so that can match different according to the head and lock the bottle lid as required in the subsequent production assembling process, satisfy the demand of different customers and use occasion, increase the flexibility of use, reduce product development and manufacturing cost.
In addition, the channel for conveying the material body is positioned inside the upper pump rod 3, and the spring 7 is positioned outside the upper pump rod 3, so that the contact between the spring 7 and the material body can be avoided, the corrosion and pollution of the material body can be avoided, and the corrosion of a metallic spring can also be avoided.
A gap is reserved between the inner wall of the upper chamber 11 and the locking part 62, a guide groove 621 arranged up and down is arranged on the locking part 62, a locking step 622 formed by recessing from one side of the guide groove 621 is arranged at the upper end of the locking part 62, an upward convex locking boss 623 is arranged on one side of the locking step 622 close to the guide groove 621, and a baffle 624 is arranged on the other side of the locking step 622 located on the locking boss 623.
When the press head 2 shown in fig. 4 is used, the press head 2 comprises an inner cylinder 21 and an outer cylinder 22, the inner cylinder 21 is connected with the upper pump rod 3 and can move up and down in the locking part 62, the outer cylinder 22 is sleeved outside the locking part 62 and can slide up and down in the gap between the inner wall of the upper chamber 11 and the locking part 62, a guide plate 23 is arranged between the inner cylinder 21 and the outer cylinder 22, the guide plate 23 can move up and down in the guide groove 621, and when the press head 2 bounces, the rotary press head 2 can rotatably clamp the guide plate 23 on the locking step 622 from the guide groove 621 and cross the locking boss 623 to limit the downward movement of the guide plate 23, wherein the locking boss 623 can prevent the guide plate 23 from falling out of the locking step 622 into the guide groove 621, and the baffle 624 can prevent the guide plate 23 from automatically falling out of the locking step 622 after the guide plate 23 crosses the locking boss 623 to stop the guide plate 23 from continuously rotating, and the locking step 622, the baffle 624 and the guide plate 23 can form a locking device for locking the button head 2 on the locking cover 6, so that the structure of the push pump is simplified, the corresponding parts are easy to manufacture, and the cost is reduced.
A guide angle 625 is arranged between the locking step 622 and the guide groove 621, the piston 4 is provided with an inner sleeve 41 which can be pressed against the bottom of the support part 64 when the upper pump rod 3 bounces, and under the action of a spring force, the external spring pump core device is in a certain tensioning state, so that the storage and transportation stability is improved. Meanwhile, when the push pump as the embodiment of fig. 5 is assembled, when the push head 2 is popped up and rotated, the guide plate 23 slides into the locking step 622 along the guide angle 625, and the inner case 41 is pressed against the bottom of the support portion 64, so that the push head, the upper pump rod, the piston, and the locking cap can be tightly locked together after self-locking, thereby improving the stability of the locking state.
The inner diameter of the upper cavity 11 of the pump body 1 is larger than that of the lower cavity 12, the lower part of the upper cavity 11 is provided with an annular boss 14 protruding inwards, the bottom of the upper cavity 11 is positioned below the boss 14, an annular buckling groove 13 recessed inwards in the lateral direction is formed, the boss 14 and the buckling groove 13 are connected up and down to form an S-shaped buckling structure, the outer side of the clamping portion 61 is provided with a buckling ring 611 buckled into the buckling groove 13 and a concave ring 612 for clamping the boss 14, a plurality of ribs 15 in interference fit with the locking cover 6 are arranged above the boss 14 in the pump body 1 at intervals along the circumferential direction, the structure is simple, the fixation is firm, and the mutual rotation and loosening between the locking cover 6 and the pump body 1 can be prevented.
The upper pump rod 3 is hollow and the lower end of the upper pump rod is closed, the lower part of the upper pump rod 3 is provided with a side opening 32 communicated with the inside of the upper pump rod 3, an upper limit table 33 and a lower limit table 34 are arranged above and below the side opening 32 on the upper pump rod 3, a movable sleeve 42 capable of moving up and down between the upper limit table 33 and the lower limit table 34 is arranged on the piston 4, a sealing ring 43 capable of being matched with the lower limit table 34 to realize sealing connection is arranged at the lower end of the movable sleeve 42, and the communication between the inside of the upper pump rod 3 and the lower chamber 12 is cut off when the lower limit table 34 presses upwards on the sealing ring 43; when the upper pump rod 3 moves downwards, the lower limit table 34 is separated from the sealing ring 43 downwards, the upper pump rod 3 is communicated with the lower chamber 12 through the side opening 32, the upper limit table 33 can be pressed on the upper end of the movable sleeve 42 after moving downwards for a certain distance to push the piston 4 to move downwards together, when the upper limit table 33 is pressed on the upper end of the movable sleeve 42, the upper limit table and the movable sleeve are connected in a sealing mode, the upper end of the piston 4 is provided with a convex ring 44 which protrudes inwards and is in interference fit with the outer side wall of the upper pump rod 3 to be connected in a sealing mode, the structure is simple, pump rod mounting accessories are omitted, the number of components is small, assembly is convenient, and cost is reduced.
As shown in fig. 1, a sealing gasket 9 is sleeved outside the upper end of the pump body 1, a flange is arranged outwards at the upper end of the pump body 1, the flange positions the sealing gasket 9 from above, as shown in fig. 5, when the lock bottle cap 5 is installed, a snap ring 51 is arranged in the lock bottle cap 5, the flange at the upper end of the pump body 1 is inserted into the lock bottle cap 5, and the snap ring 51 is clamped below the flange of the pump body 1, so that the installation connection between the lock bottle cap 5 and the pump body 1 is realized. The lower end of the pump body 1 is connected with a suction pipe 10, the structure is simple, and the production and the manufacture are easy.
Claims (7)
1. The utility model provides an external spring pump core device which characterized in that: comprises a pump body (1), an upper pump rod (3), a piston (4) and a locking cover (6), wherein the pump body (1) comprises an upper chamber (11) and a lower chamber (12) which are of a stepped structure, the locking cover (6) comprises a clamping part (61) which is clamped and fixed at the lower part of the upper chamber (11) and a limiting part (63) which upwards extends into a locking part (62) in the upper chamber (11) and downwards extends into the lower chamber (12), the locking cover (6) is hollow and is positioned at the inner side of the locking cover (6), the upper end of the upper pump rod (3) penetrates through the locking cover (6) and is used for being connected with a press head (2), the lower end of the upper pump rod (3) penetrates through the locking cover (6) to be connected with the piston (4), a spring (7) is sleeved at the outer side of the upper pump rod (3), the spring (7) is arranged in the locking cover (6), a supporting part (64) which inwards protrudes for supporting the spring (7) is arranged at the lower, a jacking boss (31) for upward jacking of the spring (7) is arranged on the outer side face of the upper part of the upper pump rod (3), and a one-way valve (8) for liquid to enter is arranged at the lower end of the lower cavity (12) in the pump body (1).
2. The external spring pump core device as set forth in claim 1, wherein: go up cavity (11) inner wall and locking portion (62) between leave the confession urceolus (22) according to head (2) gliding clearance from top to bottom, be equipped with guide way (621) that set up from top to bottom on locking portion (62), locking portion (62) upper end is equipped with and supplies to press deflector (23) of head (2) to go into and restrict the locking step (622) of deflector (23) downstream from rotatory card in guide way (621) when popping according to head (2), be equipped with on locking step (622) and prevent that deflector (23) from deviating from locking step (622) by oneself and fall into locking boss (623) in guide way (621), the opposite side that locking step (622) are located locking boss (623) is equipped with and is used for blockking baffle (624) rotatory of deflector (23).
3. The external spring pump core device as set forth in claim 2, wherein: a guide angle (625) is arranged between the locking step (622) and the guide groove (621), and the piston (4) is provided with an inner sleeve (41) which can be pressed against the bottom of the support part (64) when the upper pump rod (3) is bounced.
4. The external spring pump core device as set forth in claim 1, wherein: the pump body (1) is characterized in that the inner diameter of an upper cavity (11) of the pump body is larger than the inner diameter of a lower cavity (12), an annular boss (14) protruding inwards is arranged at the lower part of the upper cavity (11), an annular buckling groove (13) recessed laterally is arranged below the boss (14) at the bottom of the upper cavity (11), the boss (14) and the buckling groove (13) are connected up and down to form an S-shaped buckling structure, a buckling ring (611) buckled into the buckling groove (13) is arranged on the outer side of a clamping part (61), and a concave ring (612) clamped into the boss (14) is provided, a plurality of ribs (15) in interference fit with a locking cover (6) are arranged above the boss (14) in the pump body (1) at intervals along the circumferential direction, and are used for preventing the locking cover (6) and the pump body (1) from rotating and loosening.
5. The external spring pump core device as set forth in claim 1, wherein: the upper pump rod (3) is hollow, the lower end of the upper pump rod is closed, a side opening (32) communicated with the interior of the upper pump rod (3) is formed in the lower portion of the upper pump rod (3), an upper limiting table (33) and a lower limiting table (34) are arranged above and below the side opening (32) on the upper pump rod (3), a movable sleeve (42) capable of moving up and down between the upper limiting table (33) and the lower limiting table (34) is arranged on the piston (4), a sealing ring (43) capable of being matched with the lower limiting table (34) to achieve sealing connection is arranged at the lower end of the movable sleeve (42), and the interior of the upper pump rod (3) is communicated with the lower cavity (12) when the lower limiting table (34) presses up on the sealing ring (43); when the upper pump rod (3) moves downwards, the lower limiting table (34) is separated from the sealing ring (43) downwards, the upper pump rod (3) is communicated with the lower chamber (12) through the side opening (32), the upper limiting table (33) can be pressed at the upper end of the movable sleeve (42) after moving downwards for a certain distance to push the piston (4) to move downwards together, when the upper limiting table (33) is pressed at the upper end of the movable sleeve (42), the upper limiting table and the movable sleeve are connected in a sealing mode, and the upper end of the piston (4) is provided with a convex ring (44) which protrudes inwards and is in interference fit with the outer side wall of the upper pump rod (3) to be connected in a sealing mode.
6. The external spring pump core device as set forth in claim 1, wherein: the one-way valve (8) comprises a ball (81).
7. The external spring pump core device as set forth in claim 1, wherein: the outer side of the upper end of the pump body (1) is sleeved with a sealing gasket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011543970.8A CN112570163A (en) | 2020-12-23 | 2020-12-23 | External spring pump core device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011543970.8A CN112570163A (en) | 2020-12-23 | 2020-12-23 | External spring pump core device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112570163A true CN112570163A (en) | 2021-03-30 |
Family
ID=75139171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011543970.8A Withdrawn CN112570163A (en) | 2020-12-23 | 2020-12-23 | External spring pump core device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112570163A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0498275A1 (en) * | 1991-02-07 | 1992-08-12 | Tetsuya Tada | A pump dispenser and a primary valve thereof |
| CN106144190A (en) * | 2016-07-01 | 2016-11-23 | 中山市美捷时包装制品有限公司 | The standardization self-locking liquid distributing pump of external spring |
| CN111268274A (en) * | 2020-03-20 | 2020-06-12 | 中山市美捷时包装制品有限公司 | External spring pump with left and right locking structures |
| CN211711507U (en) * | 2020-02-21 | 2020-10-20 | 中山市美捷时包装制品有限公司 | Full-plastic self-locking pump device |
| CN214288892U (en) * | 2020-12-23 | 2021-09-28 | 中山市美捷时包装制品有限公司 | External spring pump core |
-
2020
- 2020-12-23 CN CN202011543970.8A patent/CN112570163A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0498275A1 (en) * | 1991-02-07 | 1992-08-12 | Tetsuya Tada | A pump dispenser and a primary valve thereof |
| CN106144190A (en) * | 2016-07-01 | 2016-11-23 | 中山市美捷时包装制品有限公司 | The standardization self-locking liquid distributing pump of external spring |
| CN211711507U (en) * | 2020-02-21 | 2020-10-20 | 中山市美捷时包装制品有限公司 | Full-plastic self-locking pump device |
| CN111268274A (en) * | 2020-03-20 | 2020-06-12 | 中山市美捷时包装制品有限公司 | External spring pump with left and right locking structures |
| CN214288892U (en) * | 2020-12-23 | 2021-09-28 | 中山市美捷时包装制品有限公司 | External spring pump core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213385592U (en) | Full-plastic self-locking emulsion pump | |
| CN112173411A (en) | Full-plastic self-locking pump | |
| CN112756130B (en) | External spring self-locking type pressing pump structure | |
| CN214288892U (en) | External spring pump core | |
| CN112110030A (en) | External spring pump distributor with safety outlet valve | |
| CN112093262A (en) | Independent external spring pump core | |
| CN214288891U (en) | External spring is from locking-type press pump | |
| CN209739723U (en) | Full-plastic emulsion pump | |
| CN211686396U (en) | Emulsion pump storage cavity structure | |
| CN214357714U (en) | External spring buckle type pressing pump | |
| CN112570163A (en) | External spring pump core device | |
| CN116750347A (en) | Valve cup for pressure vessel | |
| CN112660600A (en) | External spring buckle formula is pressed and is pressed pump structure | |
| CN211686397U (en) | Prevent that emulsion from flowing out's seal structure in static emulsion pump | |
| CN214320603U (en) | External spring lock thread type pressing pump | |
| CN209852890U (en) | Environment-friendly emulsion pump | |
| CN212386936U (en) | Spring-up structure of emulsion pump press head and main column | |
| US20230211365A1 (en) | Food pump with safe outlet valve and outer mounted spring | |
| CN215099331U (en) | Full-plastic pressing pump | |
| CN212386937U (en) | Independent external spring food pump core | |
| CN211686395U (en) | Limiting structure for bouncing of press head and main column of emulsion pump | |
| CN211663801U (en) | Full-plastic emulsion pump | |
| CN213535781U (en) | A hand pump for cosmetic bottle | |
| CN208150044U (en) | A kind of emulsion pumps that novel spring is external | |
| CN208169035U (en) | High pressure fuel pump and axle envelope for high pressure fuel pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210330 |
|
| WW01 | Invention patent application withdrawn after publication |