CN112340224A - All-plastic pump with internal lock - Google Patents
All-plastic pump with internal lock Download PDFInfo
- Publication number
- CN112340224A CN112340224A CN202011002767.XA CN202011002767A CN112340224A CN 112340224 A CN112340224 A CN 112340224A CN 202011002767 A CN202011002767 A CN 202011002767A CN 112340224 A CN112340224 A CN 112340224A
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- Prior art keywords
- guide
- locking
- seat
- groove
- axial
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- 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
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- 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
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- Reciprocating Pumps (AREA)
Abstract
An internal locking all-plastic pump comprises a body, a plastic spring, a bottom glass ball, a pressing head, a main column, a piston, a locking cover and a screw thread, and also comprises a connecting column, a top glass ball and a guiding locking piece, wherein the guiding locking piece of an outer sleeve is embedded with a circumferential locking groove of the locking cover in a linkage state; the circular arc-shaped guide locking block of the main column is matched with the circular ring-shaped connecting seat 111 between the two guide blocks of the inner sleeve to stop, and the spiral inclined plane on the axial guide rail of the main column is matched with the spiral surface of the guide block; in the natural state after unlocking, the guide locking block of the outer sleeve is in sliding fit with the axial guide groove of the locking cover, and the arc-shaped guide locking block at the upper end of the main column is in supporting fit with the lower end of the guide block; the axial guide rail of the main column is in sliding fit with the axial guide groove on the circular ring seat on the lock cover. By adopting the structure, in a natural state, the press head, the connecting column and the guide locking piece rotate together during locking, and the main column and the piston lift upwards together; when unlocking, the press head, the connecting column and the guide locking piece rotate together in a reverse direction, and the automatic lifting device has the characteristic of automatic lifting.
Description
Technical Field
The invention relates to an emulsion pump.
Background
In the prior art, an all-plastic emulsion pump comprises a body, a plastic spring, a bottom glass ball, a press head, a main column, a piston, a lock cover and a screw thread, wherein the lower part of the body is provided with a bottom one-way valve seat, the upper opening end of the body is provided with a circular baffle, the upper opening of the lock cover is provided with a circular seat, and the circular seat is provided with a circular slot with a lower opening; the upper end of the body passes through the through hole on the thread top plate, the locking cover is inserted into the body, and the upper end of the body is inserted into the lower opening annular insertion groove; the lower end of the plastic spring is matched with the bottom of the body, and the upper end of the plastic spring is matched with the piston. There are problems in that: the locking is inconvenient, the unlocking is inconvenient characteristics.
Disclosure of Invention
The purpose of the invention is: the all-plastic pump with the internal lock has the advantages of being convenient to lock and unlock.
The invention is realized by the following steps: an internal locking all-plastic pump comprises a body, a plastic spring, a bottom glass ball, a press head, a main column, a piston, a lock cover and a screw thread, wherein the lower part of the body is provided with a bottom one-way valve seat, the upper opening end of the body is provided with a circular baffle plate, the upper opening of the lock cover is provided with a circular seat, and the circular seat is provided with a circular slot with a lower opening; the upper end of the body passes through the through hole on the thread top plate, the locking cover is inserted into the body, and the upper end of the body is inserted into the lower opening annular insertion groove; the lower end of the plastic spring is matched with the bottom of the body, and the upper end of the plastic spring is matched with the piston; it is characterized in that: the pressing head comprises a liquid outlet channel and a cylindrical interface communicated with the liquid outlet channel, a plurality of circular arc-shaped bulges are arranged on the outer surface of the cylindrical interface, and a clamping groove is arranged on the inner wall of the cylindrical interface;
the main column and the piston are integrally formed, and the main column comprises two arc-shaped guide locking blocks arranged at the upper end, two axial guide rails arranged in the middle and a positioning block arranged at the lower end; the arc-shaped guide locking block is arranged on a diameter line, the two axial guide rails are arranged on a diameter line, the axial guide rails and the positioning block are arranged on a straight line, and the upper ends of the axial guide rails are provided with spiral inclined planes;
a circular ring seat is arranged in the middle of the lock cover, and two circular arc-shaped through grooves and two axial guide grooves are arranged on the circular ring seat; the inner wall of the lock cover at the upper part of the circular ring seat is provided with an axial guide groove, a spiral groove and a circumferential locking groove at the lower part, the upper end of the spiral groove is communicated with the upper end of the axial guide groove, and the lower turbulence is communicated with the circumferential locking groove;
also comprises a connecting column, a top glass ball and a guiding locking piece,
the connecting column comprises a round pipe part, a top one-way valve seat and a top cylindrical interface, wherein the top one-way valve seat and the top cylindrical interface are arranged at the upper end of the round pipe part;
the guiding locking piece comprises a circular connecting seat, an upper opening circular inserting groove arranged on the circular connecting seat, an inner sleeve and an outer sleeve; the inner surface of the outer ring wall of the upper opening circular ring-shaped inserting groove is provided with an axial inserting groove, the inner sleeve wall is provided with two guide blocks, one circumferential side of each guide block is a plane, and the other circumferential side of each guide block is a spiral surface; the lower end of the outer sleeve is provided with two guide locking blocks;
the circular arc guide locking block and the axial guide rail of the main column respectively penetrate through the circular arc penetrating groove and the axial guide groove on the circular ring seat, the stop block is matched with the axial guide groove, the piston is matched with the circular ring seat to stop, and the piston is matched with the lower end of the locking cover to stop; the main column is inserted into an inner sleeve of the guide locking piece, and the circular arc-shaped guide locking piece and the axial guide rail of the main column are in clearance fit with the guide block of the inner sleeve and the two guide blocks; the round pipe part of the connecting column is in sliding fit and sealing with the inner cavity of the main column, and the top glass ball is arranged in the top one-way valve seat; the cylindrical interface of the press head is inserted into an upper opening annular insertion groove on an annular connecting seat of the guide locking piece, and the top cylindrical interface of the connecting column is embedded with the clamping groove of the press head; the arc-shaped bulge on the press head is connected with the axial insertion groove on the guide locking piece;
in the locking state, the guide locking block of the outer sleeve is embedded with the circumferential locking groove of the locking cover; the circular arc-shaped guide locking block of the main column is matched with the circular ring-shaped connecting seat 111 between the two guide blocks of the inner sleeve to stop, and the spiral inclined plane on the axial guide rail of the main column is matched with the spiral surface of the guide block;
in the natural state after unlocking, the guide locking block of the outer sleeve is in sliding fit with the axial guide groove of the locking cover, and the arc-shaped guide locking block at the upper end of the main column is in supporting fit with the lower end of the guide block; the axial guide rail of the main column is in sliding fit with the axial guide groove on the circular ring seat on the lock cover.
The all-plastic pump with the internal lock is characterized in that: the inner wall of the locking cover is also provided with an axial lead-in groove which is communicated with the spiral groove of the locking cover,
and the guide locking block on the outer sleeve enters the spiral groove through the axial guide groove.
The all-plastic pump with the internal lock is characterized in that: the main column is internally provided with a hollow flow guide seat with a lower opening and a plug body arranged at the upper part of the flow guide seat, and the flow guide seat is provided with a plurality of flow guide holes;
a hollow liquid outlet seat with a lower opening is arranged in the round pipe part of the connecting column;
and in the locked state, the plug body is sealed with the liquid outlet seat.
The all-plastic pump with the internal lock is characterized in that: the lower extreme of the round tube portion of spliced pole is equipped with the elastic sealing cover, and elastic sealing cover and main post inner chamber sliding fit just seal.
The all-plastic pump with the internal lock is characterized in that: the piston comprises a seat body part with a lower opening and a hyperbolic-shaped piston body surrounding the lower end of the seat body part, an upper spring seat is arranged in the seat body part, and the upper end of the plastic spring is embedded with the upper spring seat.
The all-plastic pump with the internal lock is characterized in that: the inner wall of the cylindrical connector of the press head is provided with a plurality of radial plates, and the radial plates and the inner wall of the cylindrical connector form the clamping groove.
The invention relates to an internal locking all-plastic pump, which adopts the structure, and the press head, the connecting column and the guide locking piece rotate together and the main column and the piston lift upwards together when in locking under the natural state; when unlocking, the press head, the connecting column and the guide locking piece rotate together in a reverse direction, and the automatic lifting device has the characteristic of automatic lifting.
Drawings
Fig. 1 is a cross-sectional view showing the locked state of the present invention.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a sectional view of the present invention in its natural state.
Fig. 4 is a view B-B of fig. 3.
Fig. 5 is one of the exploded perspective views of the present invention.
Fig. 6 is a second exploded perspective view of the present invention.
Fig. 7 is a perspective view of the button head of the present invention.
Fig. 8 is a top view of the locking cap of the present invention.
Fig. 9 is a view C-C of fig. 8.
Fig. 10 is a perspective cross-sectional view of the locking cap of the present invention.
Fig. 11 is one of the perspective views of the guide lock of the present invention.
Fig. 12 is a cross-sectional view of the guide lock of the present invention.
Fig. 13 is a perspective cross-sectional view of the guide lock of the present invention.
Fig. 14 is a second perspective view of the guide lock of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the all-plastic pump with internal lock comprises a body 1, a plastic spring 2, a bottom glass ball 3, a press head 4, a main column 5, a piston 6, a lock cover 7 and a screw thread 8, wherein the lower part of the body 1 is provided with a bottom one-way valve seat 1A, the upper opening end of the body is provided with a circular ring baffle 1B, the upper opening of the lock cover 7 is provided with a circular ring seat 71, and the circular ring seat 71 is provided with a lower opening circular ring slot 711; the upper end of the body 1 penetrates through a through hole on a top plate of the thread 8, the lock cover 7 is inserted into the body 1, and the upper end of the body 1 is inserted into the lower opening annular insertion groove 711; the lower end of the plastic spring 2 is matched with a lower spring seat 1C at the bottom of the body 1, and the upper end of the plastic spring is matched with the piston 6;
as shown in fig. 1, 2, 3, and 7, the button 4 includes a liquid outlet channel 41 and a cylindrical interface 42 communicated with the liquid outlet channel, the outer surface of the cylindrical interface is provided with a plurality of circular arc-shaped protrusions 43, the inner wall of the cylindrical interface is provided with a plurality of radial plates 44, and the radial plates 44 and the inner wall of the cylindrical interface 42 form a slot 45;
the main column 5 and the piston 6 are integrally formed, and the main column 5 comprises two circular arc-shaped guide locking blocks 51 arranged at the upper end, two axial guide rails 52 arranged in the middle and a positioning block 53 arranged at the lower end; the circular arc-shaped guide locking block 51 is positioned on a diameter line, the two axial guide rails 52 are positioned on a diameter line, the axial guide rails 52 and the positioning block 53 are positioned on a straight line, and the upper end of the axial guide rail 52 is provided with a spiral inclined plane 521;
as shown in fig. 8, 9 and 10, a circular ring seat 72 is arranged in the middle of the lock cover 7, and two circular arc-shaped through grooves 73 and two axial guide grooves 74 are arranged on the circular ring seat; an axial guide groove 751, a spiral groove 752 and a circumferential locking groove 753 arranged at the lower part are arranged on the inner wall of the locking cover 7 at the upper part of the circular ring seat 72, the upper end of the spiral groove 752 is communicated with the upper end of the axial guide groove 751, and the lower turbulence is communicated with the circumferential locking groove 753;
also comprises a connecting column 9, a top glass ball 10 and a guide locking piece 11,
the connecting column 9 comprises a round pipe part 91, a top one-way valve seat 92 and a top cylindrical interface 93, wherein the top one-way valve seat 92 is arranged at the upper end of the round pipe part, and the diameter of the top cylindrical interface 93 is larger than that of the round pipe part 91;
the guiding locking piece 11 comprises a circular ring-shaped connecting seat 111, an upper opening circular ring-shaped inserting groove 112 arranged on the circular ring-shaped connecting seat, an inner sleeve 113 and an outer sleeve 114; an axial insertion groove 1111 is formed in the inner surface of the outer ring wall of the upper opening circular insertion groove 112, two guide blocks 115 are arranged on the inner sleeve wall 113, one circumferential side of each guide block 115 is a plane 1151, and the other circumferential side of each guide block 115 is a spiral surface 1152; the lower end of the outer sleeve 114 is provided with two guide locking blocks 1141;
the circular arc guide locking block 51 and the axial guide rail 52 of the main column 5 respectively penetrate through the circular arc penetrating groove 73 and the axial guide groove 74 on the circular ring seat 72, the stop block 53 is embedded with the axial guide groove 74, the piston 6 is matched with the circular ring seat 72 for stopping, and the piston 6 is matched with the lower end of the locking cover 7 for stopping; the main column 5 is inserted into the inner sleeve 113 of the guiding locking piece 11, the circular arc guiding locking piece 51 and the axial guide rail 52 of the main column 5 are matched with the guide block 115 of the inner sleeve 113 and the clearance between the two guide blocks 115; the round pipe part 91 of the connecting column 9 is in sliding fit and sealing with the inner cavity of the main column 5, and the top glass ball 11 is arranged in the top one-way valve seat 92; the cylindrical interface 42 of the button 4 is inserted into the upper opening circular ring-shaped inserting groove 1111 on the circular ring-shaped connecting seat 111 of the guiding locking piece 11, and the top cylindrical interface 93 of the connecting column 9 is embedded with the clamping groove 45 of the button 4; the circular arc-shaped projection 43 on the press head 4 and the axial insertion groove 1111 on the guide locking piece 11;
in the locked state, the guide locking block 1141 of the outer sleeve 114 is embedded with the circumferential locking groove 753 of the lock cover 7; the circular arc guide locking block 51 of the main column 5 is matched with the circular ring-shaped connecting seat 111 between the two guide blocks 115 of the inner sleeve 113 to stop, and the spiral inclined plane 521 on the axial guide rail 52 of the main column 5 is matched with the spiral surface 1152 of the guide block 115;
in the natural state after unlocking, the guide locking block 1141 of the outer sleeve 114 is in sliding fit with the axial guide groove 751 of the lock cover 7, and the circular arc-shaped guide locking block 51 at the upper end of the main column 5 is in supporting fit with the lower end of the guide block 115; the axial guides 52 of the main column 5 are in sliding engagement with axial guides 74 on a circular ring seat 72 on the locking cap 7.
The inner wall of the locking cover 7 is also provided with an axial lead-in groove 754, the axial lead-in groove 754 is communicated with the spiral groove 752 of the locking cover,
the guide tabs 1141 on the outer sleeve 114 enter the helical groove 752 through the axial guide groove 754.
As a further improvement of the invention: a hollow flow guide seat 54 with a lower opening and a plug body 55 arranged at the upper part of the flow guide seat are arranged in the main column 5, a plurality of flow guide holes 541 are arranged on the flow guide seat 54, and the plug body 51 is cylindrical with an upper opening and has elasticity;
a hollow liquid outlet seat 94 with a lower opening is arranged in the round pipe part 91 of the connecting column 9, and the liquid outlet seat 94 comprises a circular ring seat body 941 and a cone frustum-shaped sleeve 942 arranged on the circular ring seat body;
in the locked state, the plug 55 is inserted into the liquid outlet seat 94 and sealed, i.e. the plug 55 is inserted into the truncated cone-shaped sleeve 942, and the liquid outlet seat 94 is engaged with the circular ring seat 941 to stop.
The lower end of the round tube part 91 of the connecting column 9 is provided with an elastic sealing sleeve 95, and the elastic sealing sleeve 95 is in sliding fit with the inner cavity of the main column 5 and is sealed.
The piston 6 includes a seat body 61 having a lower opening and a hyperbolic piston body 62 surrounding a lower end of the seat body, an upper spring seat 611 is provided in the seat body 61, and an upper end of the plastic spring 2 is fitted to the upper spring seat 611. The seat body 61 of the piston 6 is engaged with the 72 of the lock cover 7 to stop, and the piston body 62 is engaged with the lower end of the lock cover 7.
Fig. 1 and 2 are views showing the present invention in a locked state, in the state shown in fig. 1, when the pressing head 4, the connecting column 9 and the guiding locking piece 11 rotate together, the guiding locking piece 1141 of the guiding locking piece 11 enters the axial guiding groove 751 from the circumferential locking groove 753 through the upper end of the spiral groove 752; meanwhile, the spiral inclined surface 521 at the upper end of the axial guide rail 52 is in sliding fit with the spiral surface 1152 of the guide block 115, and the circular arc-shaped guide locking block 51 of the main column 5 is in supporting fit with the lower end of the guide block 115, so that the unlocking is completed and the device is in a natural state, namely, a working state.
In the state shown in fig. 3 and 4, the press head 4 is operated, and the press head 4, the connecting column 9, the guide locking part 11, the main column 5 and the piston 6 reciprocate downward and upward together; the guide locking block 1141 moves up and down in the axial guide slot 751; the axial guide rail 52 moves up and down within the axial guide slot 74.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.
Claims (6)
1. An internal locking all-plastic pump comprises a body, a plastic spring, a bottom glass ball, a press head, a main column, a piston, a lock cover and a screw thread, wherein the lower part of the body is provided with a bottom one-way valve seat, the upper opening end of the body is provided with a circular baffle plate, the upper opening of the lock cover is provided with a circular seat, and the circular seat is provided with a circular slot with a lower opening; the upper end of the body passes through the through hole on the thread top plate, the locking cover is inserted into the body, and the upper end of the body is inserted into the lower opening annular insertion groove; the lower end of the plastic spring is matched with the bottom of the body, and the upper end of the plastic spring is matched with the piston; the method is characterized in that: the pressing head comprises a liquid outlet channel and a cylindrical interface communicated with the liquid outlet channel, a plurality of circular arc-shaped bulges are arranged on the outer surface of the cylindrical interface, and a clamping groove is arranged on the inner wall of the cylindrical interface;
the main column and the piston are integrally formed, and the main column comprises two arc-shaped guide locking blocks arranged at the upper end, two axial guide rails arranged in the middle and a positioning block arranged at the lower end; the arc-shaped guide locking block is arranged on a diameter line, the two axial guide rails are arranged on a diameter line, the axial guide rails and the positioning block are arranged on a straight line, and the upper ends of the axial guide rails are provided with spiral inclined planes;
a circular ring seat is arranged in the middle of the lock cover, and two circular arc-shaped through grooves and two axial guide grooves are arranged on the circular ring seat; the inner wall of the lock cover at the upper part of the circular ring seat is provided with an axial guide groove, a spiral groove and a circumferential locking groove at the lower part, the upper end of the spiral groove is communicated with the upper end of the axial guide groove, and the lower turbulence is communicated with the circumferential locking groove;
also comprises a connecting column, a top glass ball and a guiding locking piece,
the connecting column comprises a round pipe part, a top one-way valve seat and a top cylindrical interface, wherein the top one-way valve seat and the top cylindrical interface are arranged at the upper end of the round pipe part;
the guiding locking piece comprises a circular connecting seat, an upper opening circular inserting groove arranged on the circular connecting seat, an inner sleeve and an outer sleeve; the inner surface of the outer ring wall of the upper opening circular ring-shaped inserting groove is provided with an axial inserting groove, the inner sleeve wall is provided with two guide blocks, one circumferential side of each guide block is a plane, and the other circumferential side of each guide block is a spiral surface; the lower end of the outer sleeve is provided with two guide locking blocks;
the circular arc guide locking block and the axial guide rail of the main column respectively penetrate through the circular arc penetrating groove and the axial guide groove on the circular ring seat, the stop block is matched with the axial guide groove, the piston is matched with the circular ring seat to stop, and the piston is matched with the lower end of the locking cover to stop; the main column is inserted into an inner sleeve of the guide locking piece, and the circular arc-shaped guide locking piece and the axial guide rail of the main column are in clearance fit with the guide block of the inner sleeve and the two guide blocks; the round pipe part of the connecting column is in sliding fit and sealing with the inner cavity of the main column, and the top glass ball is arranged in the top one-way valve seat; the cylindrical interface of the press head is inserted into an upper opening annular insertion groove on an annular connecting seat of the guide locking piece, and the top cylindrical interface of the connecting column is embedded with the clamping groove of the press head; the arc-shaped bulge on the press head is connected with the axial insertion groove on the guide locking piece;
in the locking state, the guide locking block of the outer sleeve is embedded with the circumferential locking groove of the locking cover; the circular arc-shaped guide locking block of the main column is matched with the circular ring-shaped connecting seat 111 between the two guide blocks of the inner sleeve to stop, and the spiral inclined plane on the axial guide rail of the main column is matched with the spiral surface of the guide block;
in the natural state after unlocking, the guide locking block of the outer sleeve is in sliding fit with the axial guide groove of the locking cover, and the arc-shaped guide locking block at the upper end of the main column is in supporting fit with the lower end of the guide block; the axial guide rail of the main column is in sliding fit with the axial guide groove on the circular ring seat on the lock cover.
2. An interlock all plastic pump according to claim 1, characterised in that: the inner wall of the locking cover is also provided with an axial lead-in groove which is communicated with the spiral groove of the locking cover,
and the guide locking block on the outer sleeve enters the spiral groove through the axial guide groove.
3. An interlock all plastic pump according to claim 1, characterised in that: the main column is internally provided with a hollow flow guide seat with a lower opening and a plug body arranged at the upper part of the flow guide seat, and the flow guide seat is provided with a plurality of flow guide holes;
a hollow liquid outlet seat with a lower opening is arranged in the round pipe part of the connecting column;
and in the locked state, the plug body is sealed with the liquid outlet seat.
4. An interlock all plastic pump according to claim 1, characterised in that: the lower extreme of the round tube portion of spliced pole is equipped with the elastic sealing cover, and elastic sealing cover and main post inner chamber sliding fit just seal.
5. An interlock all plastic pump according to claim 1, characterised in that: the piston comprises a seat body part with a lower opening and a hyperbolic-shaped piston body surrounding the lower end of the seat body part, an upper spring seat is arranged in the seat body part, and the upper end of the plastic spring is embedded with the upper spring seat.
6. An interlock all plastic pump according to claim 1, characterised in that: the inner wall of the cylindrical connector of the press head is provided with a plurality of radial plates, and the radial plates and the inner wall of the cylindrical connector form the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002767.XA CN112340224A (en) | 2020-09-22 | 2020-09-22 | All-plastic pump with internal lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002767.XA CN112340224A (en) | 2020-09-22 | 2020-09-22 | All-plastic pump with internal lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112340224A true CN112340224A (en) | 2021-02-09 |
Family
ID=74357976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011002767.XA Pending CN112340224A (en) | 2020-09-22 | 2020-09-22 | All-plastic pump with internal lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112340224A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257611A1 (en) * | 2021-06-11 | 2022-12-15 | 中山市联昌喷雾泵有限公司 | Column piston assembly and fully-plastic oil pump |
| EP4317685A1 (en) * | 2023-02-20 | 2024-02-07 | Xiamen Daida Technology Co., Ltd. | Full-plastic liquid pump |
-
2020
- 2020-09-22 CN CN202011002767.XA patent/CN112340224A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257611A1 (en) * | 2021-06-11 | 2022-12-15 | 中山市联昌喷雾泵有限公司 | Column piston assembly and fully-plastic oil pump |
| EP4317685A1 (en) * | 2023-02-20 | 2024-02-07 | Xiamen Daida Technology Co., Ltd. | Full-plastic liquid pump |
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