CN220097163U - Jumping piston structure of all-plastic foam pump - Google Patents

Jumping piston structure of all-plastic foam pump Download PDF

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Publication number
CN220097163U
CN220097163U CN202320951021.6U CN202320951021U CN220097163U CN 220097163 U CN220097163 U CN 220097163U CN 202320951021 U CN202320951021 U CN 202320951021U CN 220097163 U CN220097163 U CN 220097163U
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CN
China
Prior art keywords
piston
spring
valve rod
pump
pump body
Prior art date
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Active
Application number
CN202320951021.6U
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Chinese (zh)
Inventor
黄建艺
黄颖锋
黄幸颖
沈杨彬
罗登军
沈岳忠
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Zhejiang Z&Z Industrial Co Ltd
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Zhejiang Z&Z Industrial Co Ltd
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Priority to CN202320951021.6U priority Critical patent/CN220097163U/en
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Publication of CN220097163U publication Critical patent/CN220097163U/en
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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
    • B05B11/1087—Combination of liquid and air 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1077—Springs characterised by a particular shape or material
    • 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

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  • Details Of Reciprocating Pumps (AREA)

Abstract

The utility model relates to a jumping piston structure of a full-plastic foam pump, which is designed for solving the technical problems that the existing similar products are less in corrugated plastic spring structure, all parts are difficult to automatically produce and assemble, and the structural form is single. The main point is that the spring in the pump core component of the plastic foam pump is a plastic spring, one end of the corrugated sleeve of the plastic spring is propped against the spring groove at one end of the spring pad in the pump body, the other end of the spring pad is sleeved in and buckled and fixed in the lower piston cavity at the bottom of the pump body, the valve needle in the lower piston cavity of the pump body is buckled and fixed at the other end of the valve rod sleeved in the spring pad, the outer diameter of the valve needle at the buckled position is provided with a small piston, the outer diameter of the small piston is matched and sealed with the inner wall of the lower piston cavity in the pump body, the other end of the corrugated sleeve of the plastic spring is propped against the limit rib of the outer diameter of the valve rod at the bidirectional valve at the inner top of the large piston, the bidirectional valve is buckled and fixed in the inner ring groove at the inner top of the large piston, and the suction pipe at the bottom of the lower piston cavity in the pump body is provided with a spring sleeve or ball.

Description

Jumping piston structure of all-plastic foam pump
Technical Field
The utility model relates to a foam pump, in particular to a jumping piston structure of an all-plastic foam pump.
Background
The foam pump is a pump body which is sprayed by pressing to generate foam, and the working principle of the foam pump is mainly that liquid is sprayed at a high speed to form a certain negative pressure around a liquid column, and the negative pressure generates suction gas to enter a mixing part so that air and the liquid are mixed again and quickly pass through a silk screen to form foam. For some foam pumps and similar products, a corrugated plastic spring structure is adopted, such as application publication number CN114403575A disclosed in Chinese patent literature, application publication date 2022.04.29, and the utility model is named as an all-plastic structure oil pump; and as disclosed in Chinese patent document, the grant bulletin No. CN212606872U, grant bulletin date 2021.02.26, and the name of the utility model is polymer all-plastic push type emulsion spray head; however, the plastic springs of the structure and the like mainly adopt an external structure, are less arranged in the pump body of the pump core assembly, and meanwhile, the corrugated plastic spring structure has the problems that the stability in the pump body is poor, and each part is difficult to automatically produce and assemble.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide the full-plastic foam pump jumping piston structure in the field, so that the technical problems that the existing like products are less in corrugated plastic spring structure, all parts are difficult to automatically produce and assemble, and the structural form is single are solved. The aim is achieved by the following technical scheme.
A pump core component of the full-plastic foam pump is fixed on a large ring, one end of a suction pipe is connected with a suction pipe hole at the bottom of a pump body of the pump core component, a spring, a large piston, a valve rod, a small piston and a valve needle are arranged in the pump body of the pump core component, the outer diameter of the large piston is matched and sealed with the inner wall of an upper piston cavity in the pump body, one end of the valve rod extending out of the large ring and the large piston is connected with a duckbill, and at least one end of a filter plug at the joint of the duckbill and the valve rod is provided with a silk screen. The pump core assembly is characterized in that a spring of the pump core assembly is a plastic spring or a metal spring, one end of a corrugated sleeve of the plastic spring is propped against a spring groove at one end of a spring pad in a pump body, the other end of the spring pad is sleeved in and buckled and fixed with a lower piston cavity at the bottom of the pump body, a valve needle in the lower piston cavity of the pump body is buckled and fixed with the other end of a valve rod sleeved in the spring pad, the outer diameter of a valve needle at the buckled position is provided with a small piston, the outer diameter of the small piston is matched and sealed with the inner wall of the lower piston cavity in the pump body, a clearance channel is arranged between the small piston, the valve needle and the connecting position of the valve rod, the other end of the corrugated sleeve of the plastic spring is propped against a limit rib at the outer diameter of a valve rod at the inner top of a two-way valve in a large piston, the two-way valve is buckled and fixed with an inner ring groove at the inner top of the large piston, and a spring sleeve or a ball is arranged at the suction pipe at the bottom of the lower piston cavity in the pump body; and two ends of the metal spring are respectively propped against the spring groove of the spring pad and the limit rib of the valve rod. The filter plug can also be provided with a first silk screen and a second silk screen at two ends of the filter plug respectively, the common steel wire spring is canceled by the plastic foam pump, and all functions of the foam pump are realized by a plastic spring structure made of plastic materials; the plastic spring is arranged in the spring groove of the spring pad and sleeved outside the outer wall of the valve rod, and the plastic spring is not contacted with liquid at the inner wall of the pump body, so that the pollution of the liquid caused by the contact of the plastic spring and the liquid is prevented; the small jumping piston adopts the following two schemes, optimizes the structure of the product matched seal, and more effectively prevents liquid leakage.
The valve needle is first valve needle, the small piston is first small piston, the valve rod is first valve rod, first small piston, first valve needle, be equipped with the clearance passageway between first valve rod internal diameter, first valve needle external diameter, the first valve rod internal diameter of first valve rod junction, be equipped with the button head nail that both sides flat key face symmetry set up in the middle of the sealed first valve needle's of first valve needle one side, the bellied inner circle Kong Waijing in first small piston top is sealed with the conical intracavity wall cooperation in the buckling department bottom of first valve rod, the button head nail department seal head top of first valve needle is equipped with the seal groove, seal groove and the bottom inner circle muscle cooperation seal of first small piston, the sealed centre drill way that is located spring bed bottom arch and stretches into of limit of first small piston top outer piston She Xiangdi. The embodiment of interconnection among the small piston, the valve needle and the valve rod at the lower piston cavity in the pump body is as described above.
The valve needle is the second valve needle, the small piston is the second small piston, the valve rod is the second valve rod, be equipped with the clearance passageway between second valve needle hole bottom through-hole and the second piston internal diameter of second valve rod junction of second small piston, the through-hole top external diameter of second valve needle and the inner wall lock seal of second valve rod, the spacing lock in through-hole department top of valve needle is fixed in the stem mouth of second valve rod, the through-hole top second valve rod external diameter of second valve needle and the cooperation of second small piston top internal diameter are sealed, the through-hole department bottom seal head top of second valve needle is equipped with the seal groove, seal groove and the bottom inner circle muscle cooperation of second small piston are sealed, the sealed limit in spring bed bottom arch of second small piston top inner circle hole counterbalance and stretch into the central drill way. The above is another embodiment of interconnection among the small piston, the valve needle and the valve rod at the lower piston cavity in the pump body.
The pump core component is fixed in an upper buckling groove at the inner top of the large ring through a flanging buckle at the pump opening of the pump body, and a gasket is arranged at the bottom of the flanging of the pump body at the buckling position. The above is a specific structural embodiment in which the pump core assembly is fixed to the large ring through the pump body.
The elastic sleeve is fastened and fixed in an elastic sleeve groove at the suction pipe at the bottom of the lower piston cavity in the pump body, the middle plane at the bottom of the elastic sleeve is matched and sealed with the plane at the elastic sleeve groove of the pump body, and a hollowed hole and an elastic strip are arranged between the middle plane at the bottom of the elastic sleeve and the inner diameter. The above-mentioned specific structural embodiment adopting the elastic sleeve structure and the specific structural design of the elastic sleeve for the all-plastic foam pump.
An inner groove which is distributed at equal intervals is arranged between the annular groove at the spring groove of the spring pad and the sleeve opening with the protruding outer diameter, an inner annular groove is arranged on the annular surface at one end of the plastic spring corresponding to the inner groove, and end face blocks which are distributed at equal intervals and protruding are arranged on the annular surface at the other end of the plastic spring. The structure ensures the normal use of the plastic spring, namely, the air inlet and the air exhaust at the two ends of the plastic spring.
The spring groove inner side valve rod hole of the spring cushion is provided with an inner groove ring which is protruding and larger than the diameter of the valve rod hole, and the inner wall of the inner groove ring is conical. The structure is convenient for the valve rod to be sleeved into the spring pad during automatic production and assembly.
The outer diameter of the limit rib of the valve rod is provided with protruding edges which are symmetrical and connected in pairs.
The inner diameters of the ring orifices at the extending part of the valve rod of the large ring and the sleeved part at the bottom of the duckbill are provided with downward-protruding inner plug rings, and the inner plug rings of the large ring are sleeved into the inner diameters of the pump ports fixed on the pump body; the inner plug ring of the large ring is replaced by an inner plug piece with the inner diameter at the pump opening of the pump body.
The utility model has reasonable structural design, convenient automatic production and assembly, good overall tightness and stability, simple overall recycling, and particularly good tightness and stability of the plastic spring and the small piston; the device is suitable for being used as a jumping piston structure of a full plastic foam pump and improvement of similar products.
Drawings
Fig. 1 is a schematic cross-sectional structure of an embodiment of the present utility model, in which a frame portion is a schematic spring sleeve structure.
Fig. 2 is an enlarged schematic view of the first small piston of fig. 1.
Fig. 3 is a schematic view of the first small piston and the first valve needle explosion structure of fig. 2.
FIG. 4 is a schematic view of an exploded view of the first valve stem, plastic spring, spring pad of FIG. 1, with the outlined parts being a schematic view of the bottom of the plastic spring.
FIG. 5 is a schematic diagram of a second cross-sectional structure of an embodiment of the present utility model.
Fig. 6 is an enlarged schematic view of the second small piston of fig. 5.
Fig. 7 is a schematic view of the second small piston and the second needle explosion structure of fig. 6.
The following drawing numbers and names: 1. straw, 2, pump body, 201, lower piston chamber, 3, bullet cover, 4, first needle, 5, first little piston, 6, first valve rod, 7, spring pad, 701, spring groove, 702, inside groove circle, 8, plastic spring, 9, big circle, 901, inside stopper circle, 10, big piston, 11, bi-directional valve, 12, gasket, 13, first silk screen, 14, filter plug, 15, second silk screen, 16, duckbill, 17, housing, 18, second little piston, 19, second needle, 20, second valve rod.
Description of the embodiments
The technical features and uses of the present utility model are further described with reference to the accompanying drawings. In the first embodiment shown in fig. 1-4, a pump core assembly of the full-plastic foam pump is fixed on a large ring 9, one end of a suction pipe 1 is connected with a suction pipe hole at the bottom of a pump body 2 of the pump core assembly, a spring, a large piston 10, a first valve rod 6, a first small piston 5 and a first valve needle 4 are arranged in the pump body of the pump core assembly, the outer diameter of the large piston is sealed with the inner wall of an upper piston cavity in the pump body in a matched manner, one end of the valve rod extending out of the large ring and the large piston in the pump body is connected with a duckbill 16, a first silk screen 13 and a second silk screen 15 are respectively arranged at two ends of a filter plug 14 at the joint of the duckbill and the valve rod, and an outer cover 17 is buckled and fixed on the large ring outside the duckbill. The spring of above-mentioned pump core subassembly is plastics spring 8, plastics spring's ripple cover one end offsets with the spring groove 701 of spring pad 7 one end in the pump body 2, the other end of spring pad embolias and lock is fixed in the lower piston chamber 201 of pump body inner bottom, the first needle lock is fixed in the first valve rod other end of embolias spring pad in the lower piston chamber of pump body, the first needle external diameter of buckling department is equipped with first little piston, the external diameter of first little piston and the pump body inner wall cooperation seal in lower piston chamber department, be equipped with the clearance passageway between first little piston, first needle, first valve rod junction, plastics spring's ripple cover other end offsets with the spacing muscle of the first valve rod external diameter of the bi-directional valve 11 department at big piston inner top, the spacing muscle department external diameter of first valve rod is equipped with two-pair symmetry and continuous protruding limit, bi-directional valve lock is fixed in the inner race of big piston inner top, the straw department of the pump body inner bottom of lower piston chamber is equipped with bullet cover 3. The plastic spring in the structure can also be replaced by a metal spring, and two ends of the metal spring respectively prop against the spring groove of the spring pad and the limit rib of the valve rod.
The clearance channel is specifically arranged between the first small piston, the first valve needle, the first small piston inner diameter of the first valve rod joint, the first valve needle outer diameter and the first valve rod inner diameter, buckling nails symmetrically arranged on two sides of the flat key surface are arranged in the middle of one side of the sealing head of the first valve needle, the inner ring Kong Waijing of the bulge at the top of the first small piston is matched and sealed with the inner wall of the conical cavity at the bottom of the buckling part of the first valve rod, the sealing head top of the buckling nail of the first valve needle is provided with a sealing groove, the sealing groove is matched and sealed with the inner ring rib at the bottom of the first small piston, and the sealing limit of the outer piston She Xiangdi at the top of the first small piston is positioned at the central hole protruding from and extending into the bottom of the spring cushion. The pump core component is fastened and fixed on the upper fastening groove at the inner top of the large ring through the flange at the pump opening of the pump body, and a gasket 12 is arranged at the bottom of the flange at the fastening position of the pump body. The elastic sleeve is buckled and fixed in an elastic sleeve groove at the suction pipe at the bottom of the lower piston cavity in the pump body, the middle plane of the bottom of the elastic sleeve is matched and sealed with the plane of the elastic sleeve groove of the pump body, and a hollowed hole and an elastic strip are arranged between the middle plane of the bottom of the elastic sleeve and the inner diameter. An inner groove which is distributed at equal intervals is arranged between the annular groove at the spring groove of the spring pad and the sleeve opening with the protruding outer diameter, an inner annular groove is arranged on the annular surface at one end of the plastic spring corresponding to the inner groove, and end face blocks which are distributed at equal intervals and protruding are arranged on the annular surface at the other end of the plastic spring. The inner groove ring 702 which is raised and larger than the diameter of the valve rod hole is arranged at the valve rod hole at the inner side of the spring groove of the spring cushion, and the inner wall of the inner groove ring is conical. The inner diameter of the ring orifice at the position of the valve rod extension of the large ring and the bottom of the duckbill 16 is provided with an inner plug ring 901 protruding downwards, and the inner plug ring of the large ring is sleeved into the inner diameter of the pump opening fixed on the pump body; the inner plug ring of the large ring is replaced by an inner plug piece with the inner diameter at the pump opening of the pump body.
The outer edge of the top of the first small piston is positioned in the inner wall of the valve rod to be matched and sealed, so that liquid is prevented from flowing back, and the appearance and the functions are affected; the sealing rib at the outer edge of the first small piston is positioned in the inner wall of the pump body to be matched and sealed, so that liquid leakage is prevented, and appearance and functions are prevented from being influenced; the sealing rib at the bottom of the first small piston is positioned in the sealing groove of the valve needle to be matched and sealed, so that liquid leakage is prevented, and appearance and functions are affected.
When the bottle is used, the bottle mouth of the bottle body is filled in a large circle of rotation, the outer cover is opened, the duckbill is pressed in a reciprocating mode, and liquid in the bottle body can be sprayed out through foam.
According to the structural feature of the first embodiment, as shown in fig. 5-7, in the second embodiment, the valve needle is replaced by a second valve needle 19, the small piston is replaced by a second small piston 18, the valve rod is replaced by a second valve rod 20, a clearance channel is arranged between the bottom through hole of the inner hole of the second valve needle and the inner diameter of the second piston at the joint of the second small piston, the second valve needle and the second valve rod 20, the outer diameter above the through hole of the second valve needle is buckled and sealed with the inner diameter of the top of the second small piston, the upper limit buckling of the through hole of the valve needle is fixed at the rod mouth of the second valve rod, the outer diameter of the second valve rod above the through hole of the second valve needle is matched and sealed with the inner diameter of the top of the second small piston, the top inner ring hole of the second small piston is propped against and sealed with the central hole which is located in the protrusion of the bottom of the spring pad and stretches.
The inner hole rib of the second small piston is positioned on the outer wall of the valve rod to be matched and sealed, so that liquid is prevented from flowing back, and appearance and functions are affected; the outer edge sealing rib of the second small piston is positioned in the inner wall of the pump body to be matched and sealed, so that liquid leakage is prevented, and appearance and functions are prevented from being influenced; the sealing rib at the bottom of the second small piston is positioned in the sealing groove of the valve needle to be matched and sealed, so that liquid leakage is prevented, and appearance and functions are affected. The second embodiment can achieve the same technical purpose and effect as the first embodiment.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical scope of the present utility model, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, which should be covered in the scope of the claims of the present utility model.

Claims (9)

1. A pump core component of the full-plastic foam pump is fixed on a large ring (9), one end of a suction pipe (1) is connected with a suction pipe hole at the bottom of a pump body (2) of the pump core component, a spring, a large piston (10), a valve rod, a small piston and a valve needle are arranged in the pump body of the pump core component, the outer diameter of the large piston is sealed with the inner wall of an upper piston cavity in the pump body in a matched manner, one end of the valve rod extending out of the large ring and the large piston in the pump body is connected with a duckbill (16), and at least one end of a filter plug (14) at the joint of the duckbill and the valve rod is provided with a silk screen; the pump is characterized in that the spring of the pump core assembly is a plastic spring (8) or a metal spring, one end of a corrugated sleeve of the plastic spring is propped against a spring groove (701) at one end of a spring pad (7) in a pump body (2), the other end of the spring pad is sleeved in and buckled and fixed on a lower piston cavity (201) at the inner bottom of the pump body, a valve needle in the lower piston cavity of the pump body is buckled and fixed on the other end of a valve rod sleeved in the spring pad, the outer diameter of a valve needle at the buckled position is provided with a small piston, the outer diameter of the small piston is matched and sealed with the inner wall of the lower piston cavity in the pump body, a clearance channel is arranged between the small piston, the valve needle and the connecting position of the valve rod, the other end of the corrugated sleeve of the plastic spring is propped against a limit rib at the outer diameter of the valve rod at a bidirectional valve (11) at the inner top of a large piston (10), the bidirectional valve is buckled and fixed on an inner ring groove at the inner top of the large piston, and a spring sleeve (3) or a ball is arranged at a suction pipe at the bottom of the lower piston cavity in the pump body; and two ends of the metal spring are respectively propped against the spring groove of the spring pad and the limit rib of the valve rod.
2. The pulsation piston structure of the all-plastic foam pump according to claim 1, characterized in that the valve needle is a first valve needle (4), the small piston is a first small piston (5), the valve rod is a first valve rod (6), a gap channel is arranged among the first small piston, the first valve needle and the first small piston inner diameter at the joint of the first valve rod, the first valve needle outer diameter and the first valve rod inner diameter, a buckling nail with two side flat key faces symmetrically arranged is arranged in the middle of one side of a sealing head of the first valve needle, an inner ring Kong Waijing of a top protrusion of the first small piston is matched and sealed with the inner wall of a conical cavity at the bottom of a buckling part of the first valve rod, a sealing groove is arranged at the top of the sealing head of the buckling nail of the first valve needle and matched and sealed with the inner ring rib at the bottom of the first small piston, and the sealing limit of the top outer piston She Xiangdi of the first small piston is positioned at the bottom protrusion of a spring pad (7) and stretches into a central hole.
3. The full plastic foam pump jumping piston structure according to claim 1, characterized in that the valve needle is a second valve needle (19), the small piston is a second small piston (18), the valve rod is a second valve rod (20), a clearance channel is arranged between a bottom through hole of an inner hole of the second valve needle at the joint of the second small piston, the second valve needle and the second valve rod (20) and the inner diameter of the second piston, the outer diameter above the through hole of the second valve needle is buckled and sealed with the inner wall of the second valve rod, the upper limit buckling of the through hole of the valve needle is fixed at a rod mouth of the second valve rod, the outer diameter above the through hole of the second valve needle is matched and sealed with the inner diameter of the top of the second small piston, a sealing groove is arranged at the top of a bottom sealing head of the through hole of the second valve needle and matched and sealed with an inner ring rib at the bottom of the second small piston, and the inner ring hole of the top of the second small piston is propped and sealed and limited at a central hole protruding from the bottom of a spring pad (7) and stretches into.
4. The jumping piston structure of the plastic foam pump according to claim 1, characterized in that the pump core component is fastened and fixed on the upper fastening groove at the inner top of the large ring through the flanging at the pump opening of the pump body (2), and a gasket (12) is arranged at the bottom of the flanging of the pump body at the fastening position.
5. The jumping piston structure of the plastic foam pump according to claim 1, characterized in that the elastic sleeve (3) is fastened and fixed in an elastic sleeve groove at the suction pipe of the bottom of the lower piston cavity in the pump body (2), the middle plane of the bottom of the elastic sleeve is matched and sealed with the plane of the elastic sleeve groove of the pump body, and a hollowed hole and an elastic strip are arranged between the middle plane of the bottom of the elastic sleeve and the inner diameter.
6. The jumping piston structure of the plastic foam pump according to claim 1, characterized in that an inner groove distributed equidistantly is arranged between the annular groove at the spring groove (701) of the spring pad (7) and the sleeve opening with the protruding outer diameter, an inner annular groove is arranged on one end annular surface of the plastic spring (8) corresponding to the inner groove, and end face blocks distributed equidistantly and protruding are arranged on the other end annular surface of the plastic spring.
7. The jumping piston structure of the plastic foam pump according to claim 1, characterized in that an inner groove ring (702) which is raised and larger than the diameter of the valve rod hole is arranged at the valve rod hole inside a spring groove (701) of the spring pad (7), and the inner wall of the inner groove ring is conical.
8. The jumping piston structure of full plastic foam pump as set forth in claim 1, wherein the outer diameter of the limit rib of the valve rod is provided with two symmetrical and connected protruding edges.
9. The jumping piston structure of the plastic foam pump according to claim 1, characterized in that the inner diameter of the hole opening of the large ring (9) extending out of the valve rod and sleeved in the bottom of the duck bill (16) is provided with an inner plug ring (901) protruding downwards, and the inner plug ring of the large ring is sleeved in the inner diameter of the pump opening of the pump body (2); the inner plug ring of the large ring is replaced by an inner plug piece with the inner diameter at the pump opening of the pump body.
CN202320951021.6U 2023-04-21 2023-04-21 Jumping piston structure of all-plastic foam pump Active CN220097163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320951021.6U CN220097163U (en) 2023-04-21 2023-04-21 Jumping piston structure of all-plastic foam pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320951021.6U CN220097163U (en) 2023-04-21 2023-04-21 Jumping piston structure of all-plastic foam pump

Publications (1)

Publication Number Publication Date
CN220097163U true CN220097163U (en) 2023-11-28

Family

ID=88865087

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320951021.6U Active CN220097163U (en) 2023-04-21 2023-04-21 Jumping piston structure of all-plastic foam pump

Country Status (1)

Country Link
CN (1) CN220097163U (en)

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