CN216270996U - Pressure storage type spray pump and pressure storage type spray device - Google Patents
Pressure storage type spray pump and pressure storage type spray device Download PDFInfo
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- CN216270996U CN216270996U CN202122263361.3U CN202122263361U CN216270996U CN 216270996 U CN216270996 U CN 216270996U CN 202122263361 U CN202122263361 U CN 202122263361U CN 216270996 U CN216270996 U CN 216270996U
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- main column
- spray pump
- pressure
- storage type
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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
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
- B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
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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
- B05B11/1073—Springs
- B05B11/1077—Springs characterised by a particular shape or material
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- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
A pressure storage type spray pump and a pressure storage type spray device can prevent an elastic component from being corroded while realizing continuous spraying, and can prolong the service life. Comprises a main column, a cylinder body, an upper elastic part, an upper envelope, a lower elastic part, a first piston and a one-way valve mechanism. The upper end of the upper elastic element is fixedly connected with the main column. The upper envelope is fixedly connected with the cylinder body and is fixedly connected with the lower end of the upper elastic piece. The lower elastic part is arranged between the main column and the cylinder body, and the upper end of the lower elastic part is fixedly connected with the upper envelope. The first piston is arranged on the lower side of the lower elastic part along the axial direction, and the first piston is fixedly connected with the lower end of the lower elastic part. The check valve mechanism is provided axially on a lower side of the first piston with a reservoir chamber formed therebetween, and is configured to open only when the main column is pressed, and to allow only the working liquid to flow from the cylinder into the reservoir chamber.
Description
Technical Field
The present invention relates to a pressure storage type spray pump and a pressure storage type spray device.
Background
At present, most of spray pumps sold on the market are discontinuously sprayed, one-time spraying is carried out by pressing, and when the starting and the ending of each time of spraying, fog drops with poor atomizing effect drop from a nozzle, so that the waste of products can be caused.
For this reason, two continuous spraying techniques are currently proposed. One is developed by Aaofa spraying Group (AFA spraying Group)
A technique (for example, international publication WO2012-061764a1) that enables continuous spraying, another that enables the effect of continuous spraying by using an aerosol (gas propellant).
However, the internal structure is complicated, the volume is large, and the production cost is high and the price is high. In addition, since the aerosol is generally prepared by using a propellant (organic small molecule alkane gas) and simultaneously using a high-pressure device, the aerosol belongs to flammable and explosive products. Therefore, the product belongs to a prohibited product in many cases, and brings great inconvenience to the use of consumers.
For this reason, the inventors of the present application have invented a pressure storage type continuous spray pump (chinese patent application No. 202121322139X) which realizes continuous spraying by using a double piston double spring system and has high safety.
Documents of the prior art
Patent document
Patent document 1: international publication WO2012-061764A1
Patent document 2: chinese patent application No. 202121322139X
SUMMERY OF THE UTILITY MODEL
In patent document 2, in order to realize the continuous pressure storage technique, the second elastic member is provided in a space of the cylinder, which is located below the second piston and stores the working fluid, and is often immersed in the working fluid. In addition, in consideration of practical use, ease of manufacture, and manufacturing cost, an all-plastic type spray pump is often preferred. In particular, the second elastic member often employs a plastic such as silicone rubber or polyethylene or polypropylene and a poly-long-chain olefin blend. However, since the working fluid is often a chemical body with corrosiveness, there is a technical problem that the second elastomer is corroded. In order to solve the problem of corrosion, the second elastic member may be made of a metal having corrosion resistance, such as stainless steel. However, since the spray pump is often disposable, there are technical problems of excessive waste and excessive manufacturing costs. In addition, in the case where the second elastic member is made of metal and the other members are made of plastic, after use, the spraying device must be detached and the second elastic member made of metal and the other members made of plastic must be separately recycled, which is environmentally undesirable and has a low recycling rate.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a pressure storage type spray pump and a pressure storage type spray apparatus, which can prevent an elastic member from being corroded while realizing continuous spraying, and can improve the service life.
Utility model first point's pressure storage formula atomizing pump includes king post and cylinder body, the inside of king post is formed with along axially extended fluid passage, working fluid is acceptd to the cylinder body to inserted the king post, its characterized in that still includes:
the upper end of the upper elastic part is fixedly connected to the main column;
the upper sealing sleeve is fixedly connected to the cylinder body and is fixedly connected with the lower end of the upper elastic piece;
the lower elastic piece is arranged between the main column and the cylinder body, and the upper end of the lower elastic piece is fixedly connected to the upper envelope;
the first piston is arranged on the lower side of the lower elastic part along the axial direction and is fixedly connected with the lower end of the lower elastic part; and
a check valve mechanism provided on a lower side of the first piston in the axial direction with a reservoir chamber formed therebetween, the check valve mechanism being configured to open only when the main column is pressed and to allow only the working liquid to flow from the cylinder into the reservoir chamber.
In the pressure accumulating type atomizing pump according to the second aspect of the present invention, it is preferable that the pressure accumulating type atomizing pump is an all-plastic type atomizing pump.
In the pressure accumulating type spray pump according to the second aspect of the present invention, it is preferable that the upper elastic body and/or the lower elastic body is made of silicone rubber.
In the pressure-storing spray pump according to the fourth aspect of the present invention, in addition to the pressure-storing spray pump according to the second aspect of the present invention, it is preferable that the upper elastomer and/or the lower elastomer is/are formed by blending polyethylene or polypropylene and a long-chain polyolefin.
In the accumulator spray pump according to the first aspect of the present invention, it is preferable that the check valve mechanism includes:
a second piston that is fixed to the main column with the first piston and the second piston being disposed with the reservoir chamber therebetween in the axial direction, the second piston being formed with a through hole that penetrates in the axial direction; and
an elastic spacer configured to cover the through hole, the elastic spacer being deformed to open the through hole by pressing the main column.
In the accumulator spray pump according to a fifth aspect of the present invention, it is preferable that the second piston has a plurality of through holes formed at equal intervals in a circumferential direction.
In the pressure accumulating type spray pump according to a seventh aspect of the present invention, in addition to the pressure accumulating type spray pump according to the first aspect of the present invention, it is preferable that a fine hole communicating with the fluid passage is formed in a side wall of the main column, the fine hole is closed by the first piston, and the fine hole is opened by pressing the main column to fluidly communicate the reservoir chamber with the fluid passage.
In the accumulator spray pump according to a seventh aspect of the present invention, it is preferable that the plurality of fine holes are formed in the side wall of the main column at equal intervals in the circumferential direction in the accumulator spray pump according to an eighth aspect of the present invention.
A ninth aspect of the present invention relates to a pressure storage type atomizer, comprising:
the pressure storage type spray pump according to any one of the first to eighth aspects; and
and the pressing type sprayer is matched with the pressure storage type spray pump to apply force to the main column of the pressure storage type spray pump along the axial direction.
In the pressure accumulating type atomizer according to a ninth aspect of the present invention, it is preferable that the pressure accumulating type atomizer according to the tenth aspect of the present invention further include a cover member configured to house a part of the cylinder into which the main column is inserted.
In the pressure accumulating type atomizer according to the tenth aspect of the present invention, it is preferable that the cap member is a screw cap having a thread formed on an inner wall thereof.
According to the pressure storage type spray pump of the first aspect, the second elastic member originally provided in the space of the cylinder body below the second piston for storing the working fluid is modified into the external upper elastic member, so that the elastic member can be prevented from being corroded while continuous spraying is achieved, and the service life can be prolonged.
The pressure storage type spray pump according to the second to fourth aspects can be configured as a full-plastic type spray pump, and the upper elastomer and/or the lower elastomer can be formed by blending silicone rubber, polyethylene, polypropylene and a long-chain olefin, so that a plastic processing process can be used only, the production process is simple, the cost is low, and the disposable requirement can be met. Further, the problem of corrosion of the plastic elastic member by corrosive chemicals can be avoided. In addition, because the pressure storage type spray pump is an all-plastic spray pump, the spray pump can be directly extruded and recycled for use after use, and does not need to be burnt or recycled after disassembly, so that the spray pump has better environmental protection performance and high regeneration utilization rate.
According to the pressure accumulating type atomizing pump described in the fifth aspect, the check valve mechanism can be formed with a simple structure, and the entire structure of the pressure accumulating type atomizing pump can be simplified.
The pressure-storing type spray pump according to the sixth to eighth aspects can introduce the working fluid more uniformly into the reservoir chamber and the fluid passage in the main column.
The pressure-storing type atomizer according to the ninth to eleventh aspects can provide an atomizer which can continuously atomize a liquid and has a long service life.
Drawings
Fig. 1 is a view showing a pressure accumulating type atomizer including a pressure accumulating type atomizing pump according to an embodiment of the present invention, wherein (a) is a perspective view showing the pressure accumulating type atomizer, (B) is an exploded front view showing the pressure accumulating type atomizer in a compressed state, and (C) is an exploded sectional view showing the pressure accumulating type atomizer in a compressed state.
Fig. 2 is a sectional view showing the pressure storage type atomizer in a free state.
Fig. 3 is a sectional view showing the pressure storage type atomizer in a compressed state.
Fig. 4 is an enlarged cross-sectional view showing an upper elastic body and a lower elastic body.
Fig. 5 is an enlarged sectional view showing a second piston constituting the check valve mechanism.
Fig. 6 is an enlarged cross-sectional view showing an elastic spacer constituting the check valve mechanism.
Detailed Description
Next, the structure of the pressure accumulating type atomizing pump and the pressure accumulating type atomizing device according to the embodiment of the present invention will be described in detail with reference to the drawings.
The specific structure of the pressure storage type spray pump and the pressure storage type spray device
Fig. 1 shows a diagram of a pressure-storing type atomizer a including a pressure-storing type atomizer pump P according to an embodiment of the present invention. In which fig. 1(a) shows a perspective view of a pressure storage type atomizer a, fig. 1(B) shows a front exploded view of the pressure storage type atomizer a in a compressed state, and fig. 1(C) shows a cross-sectional exploded view of the pressure storage type atomizer a in a compressed state.
As shown in fig. 1(a), 1(B) and 1(C), the pressure-storing type atomizer a includes a push-type head 1, a lid member C, a pressure-storing type atomizing pump P (a cylinder 3 described later is shown as a part thereof), and a suction tube 2. The push-type head 1 may be a commercially available conventional head, and the user can manually push the push-type head 1 to spray. The push type head 1 is fitted in a cap member C for fixing the pressure storage type atomizer a to a bottle body (not shown). In the present embodiment, the cap member C is a screw cap having a screw thread C1 formed on the inner wall surface thereof, and connects the pressure storage type atomizer a to the body to be used by engaging with the screw thread formed on the bottle mouth. The cover member C has a part of a pressure storage type spray pump P described later disposed therein. A suction pipe 2 is connected to a lower end of the pressure accumulating type spray pump P, and the suction pipe 2 supplies the working fluid (liquid for spraying) from the inside of the bottle to a cylinder 3 of the pressure accumulating type spray pump P, which will be described later.
Next, the detailed structure of the pressure-storing type atomizing pump P will be described with reference to fig. 1(C) and 2.
Fig. 2 shows a sectional view of the pressure-storing spraying device in a free state. As shown in fig. 2, the pressure storage type spray pump P includes a cylinder 3, a main column 4, an upper elastic body 5, an upper jacket 6, a lower elastic body 7, a first piston 8, an elastic spacer 9 and a second piston 10 constituting a check valve mechanism, and a paddle 11.
The cylinder 3 is a cylindrical member having an open upper end and a lower end, and has a large diameter portion 31, a small diameter portion 32, and a liquid inlet portion 33, the large diameter portion 31 accommodating a part of the main column 4, the upper jacket 6, the lower elastic body 7, the first piston 8, and the elastic spacer 9 and the second piston 10 constituting the check valve mechanism, the small diameter portion 32 accommodating the paddle 11, and the liquid inlet portion 33 into which the suction pipe 2 is inserted. Further, as shown in fig. 3, the cylinder 3 is fixed to the cover member C by fitting.
The main column 4 is a thin cylindrical member having an open upper end and a closed lower end, and a fluid passage 41 for flowing gas or working liquid is formed inside. An annular flange 42 is formed around the entire upper end of the main column 4 in the axial direction of the main column 4, and the flange 42 is used to fix the upper end of the upper elastic body 5. Further, a fine hole 43 penetrating the side wall of the main column 4 in the radial direction is formed in a portion near the lower end portion in the axial direction of the main column 4, and air or working liquid stored in a storage chamber M described later enters the fluid passage 41 through the fine hole 43 and is ejected from the fluid passage 41 to the outside through the push type head 1 at a high speed.
The upper jacket 6 is a member for connecting the lower end of the upper elastic body 5 and the upper end of the lower elastic body 7. As shown in fig. 2, an upper envelope 6 is fixedly coupled to an upper end opening of the cylinder 3 to close an inner space of the cylinder 3 from an outer space.
As shown in fig. 4, the upper elastic body 5 is made of plastic such as silicone rubber, polyethylene, or polypropylene blended with a long-chain olefin, and includes a first inner side portion 51 and a first outer side portion 52. The first inner side portion 51 and the first outer side portion 52 are configured to be elastically deformable relative to each other in the axial direction by an axial force. Similarly, the lower elastic portion 7 is also made of plastic such as silicone rubber, polyethylene, or a blend of polypropylene and a long-chain olefin, and includes a second inner side portion 71 and a second outer side portion 72. The second inner side portion 71 and the second outer side portion 72 are also configured to be elastically deformable relative to each other in the axial direction by an axial force. Specifically, fig. 1(C) shows the upper elastic body 5 and the lower elastic body 7 in a compressed state, and fig. 2 shows the upper elastic body 5 and the lower elastic body 7 in a free state. The upper end of the upper elastic body 5 is fixedly connected to the flange 42 of the main column 4, and the lower end is fixedly connected to the upper surface of the upper envelope 6. The upper end of the lower elastic body 7 is fixedly connected to the lower surface of the upper envelope 6, and the lower end thereof is fixedly connected to the first piston 8.
The first piston 8 is an annular member disposed between the cylinder 3 and the main column 4, and has an inner surface that is in close contact with the outer surface of the main column 4 without a gap in the radial direction and an outer surface that is in close contact with the inner wall surface of the cylinder 3 without a gap in the radial direction. That is, the air or the working fluid hardly flows from below to above the first piston 8, and does not flow from above to below the first piston 8. In the free state, the first piston 8 closes the fine hole 43 of the main column 4, so that the fluid passage 41 does not communicate with the later-described reservoir chamber M.
The one-way valve mechanism comprises an elastomeric isolator 9 and a second piston 10. Fig. 5 shows an enlarged cross-sectional view of the second piston 10. The second piston 10 is a substantially annular member disposed between the cylinder 3 and the main column 4, and as shown in fig. 5, has a hollow main body portion 10a1, an upper flange portion 10a2, and a side flange portion 10A3, the upper flange portion 10a2 being formed at the upper end of the main body portion 10a1 and projecting radially outward, and the side flange portion 10A3 being formed at the outer edge of the upper flange portion 10a2 in the radial direction and extending axially downward. In a state where the second piston 10 is disposed between the cylinder 3 and the main column 4, the inner peripheral surface of the body portion 10a1 is in close contact with the outer surface of the main column 4 without a radial gap, and the side flange portion 10A3 is in close contact with the inner wall surface of the cylinder 3 without a radial gap. Further, the second piston 10 is formed with a plurality of through holes 12 axially penetrating the upper flange portion 10a2, and the through holes 12 are used to fluidly communicate the small diameter portion 32 of the cylinder 3 with a reservoir chamber M described later. The diameter of the through-hole 12 is much larger than that of the fine hole 43. Fig. 6 shows an enlarged cross-sectional view of the elastomeric isolator 9. As shown in fig. 6, the elastic spacer 9 is a hollow substantially disk-shaped member, is disposed between the cylinder 3 and the main column 4 and above the second piston 10 adjacently as shown in fig. 2, and has a hollow columnar portion 91 and an annular plate portion 92, and the annular plate portion 92 is formed along the entire outer peripheral surface of the columnar portion 91 and is formed in a shape inclined downward as being away from the columnar portion 91 in the radial direction. The annular plate portion 92 is formed of an elastic thin plate and is elastically deformable in the axial direction with respect to the columnar portion 91. As shown in fig. 2, when the elastic spacer 9 is disposed between the cylinder 3 and the main column 4, the columnar portion 91 supports the first piston 8, the columnar portion 91 is supported by the upper surface of the second piston 10 (to be precise, the main body portion 10a1), and the annular plate portion 92 covers the through hole 12 from above.
Further, as shown in fig. 2, a reservoir chamber M with a variable volume is formed between the first piston 8 and the elastic spacer 9. Specifically, the volume of the reservoir chamber M becomes larger as air or the working liquid flows into the reservoir chamber M, and the volume of the reservoir chamber M becomes smaller as air or the working liquid flows out of the reservoir chamber M. This will be explained in detail later.
Next, the structures of the pressure accumulating type atomizing pump P and the pressure accumulating type atomizing device a are explained, and the operation principle of the pressure accumulating type atomizing pump P and the pressure accumulating type atomizing device a is explained in detail with reference to fig. 2 and 3.
Fig. 2 shows a sectional view of the pressure storage type atomizer a in a free state. In the free state, the first piston 8 contacts the cylindrical portion 91 of the elastic spacer 9 to close the fine hole 43, so that the reservoir chamber M is in a state of non-communication with the fluid passage 41 of the main column 4.
When the pressure accumulating type atomizing pump P and the pressure accumulating type atomizing device a of the present embodiment are used for the first time, air may exist in the storage chamber M and a space below the second piston 10 in the cylinder 3 (hereinafter, referred to as a lower chamber LM). First, the push type head 1 is pushed to move the main column 4 connected to the push type head 1 downward in the axial direction against the elastic force of the upper elastic body 5. At this time, the upper elastic body 5 is compressed by the pressing force. At this time, since the paddle 11 closes the connection port between the small diameter portion 32 and the liquid inlet portion 33, the air in the lower chamber LM cannot be discharged from below.
At the same time, since the air in the lower chamber LM is compressed so that the pressure in the lower chamber LM becomes greater than the pressure in the reservoir chamber M, the annular plate portion 92 of the elastic partition 9 is deformed upward by the pressure difference to open the through hole 12, and the air in the lower chamber LM flows into the reservoir chamber M, as shown in fig. 3. Then, as the air flows in, the first piston 8 moves upward in the axial direction against the lower elastic body 7, so that the fine hole 43, which is originally closed by the side surface of the first piston 8, is opened, thereby bringing the reservoir chamber M into fluid communication with the fluid passage 41 in the main column 4, and the air in the reservoir chamber M flows into the fluid passage via the fine hole 43. At this time, the lower elastic body 7 is compressed by the air pressure. However, since the aperture of the through hole 12 is much larger than that of the fine hole 43, the amount of air flowing into the reservoir chamber M from the lower chamber LM per unit time is larger than the amount of air flowing into the fluid passage 41 from the reservoir chamber M per unit time, and the volume of the reservoir chamber M becomes larger as viewed from the entire pressing process, and the first piston 8 continues to move upward in the axial direction against the lower elastic body 7.
When the push type head 1 is pressed until the upper elastic body 5 is compressed to the maximum elastic compression position, the push type head 1 is released. At this time, the main column 2 and the secondary piston 10 are moved upward in the axial direction by the restoring force of the upper elastic body 5. Further, since the pressure in the reservoir chamber M is higher than the pressure in the lower chamber LM, the annular plate portion 92 of the elastic spacer 9 returns to the initial state to close the through hole 12. That is, the pressure storage type atomizer a gradually returns from the compressed state shown in fig. 3 to the free state shown in fig. 2. At the same time, the first piston 8 moves downward by the restoring force of the lower elastic body 7 to urge the air in the reservoir chamber M, so that the air flows into the fluid passage 41 through the fine hole 43 more quickly until the first piston 5 moves to the initial position in abutment with the columnar portion 91 of the elastic spacer 9 to close the fine hole 43. Thereby, the pressure accumulating type atomizer a is returned to the free state shown in fig. 2. On the other hand, during the release, since the pressure in the liquid inlet portion 33 is greater than the pressure in the lower chamber LM, the paddle 11 opens, and air or the working liquid continuously flows from the liquid inlet portion 33 into the lower chamber LM. Thereby, the working liquid is contained in the lower chamber LM.
By repeatedly pressing and releasing the push type head 1 as described above, the lower chamber LM is filled with the working fluid.
Next, the main column 4 connected to the push type head 1 is moved downward in the axial direction against the elastic force of the upper elastic body 5 by pressing the push type head 1. At this time, since the paddle 11 closes the connection port between the small diameter portion 32 and the liquid inlet portion 33, the working liquid in the lower chamber LM cannot be discharged from below.
At this time, since the working fluid has a nearly incompressible property, when the working fluid in the lower chamber LM is compressed, the fluid pressure in the lower chamber LM becomes greater than the pressure in the reservoir chamber M, and therefore, as shown in fig. 3, the annular plate portion 92 of the elastic partition 9 deforms upward by the pressure difference to open the through hole 12, and the working fluid in the lower chamber LM flows into the reservoir chamber M. Then, as the working fluid flows in, the first piston 8 moves upward in the axial direction against the elastic force of the lower elastic body 7, and the fine hole 43, which is originally closed by the side surface of the first piston 8, opens, so that the reservoir chamber M is in fluid communication with the fluid passage 41 in the main column 4, and the working fluid in the reservoir chamber M flows into the fluid passage via the fine hole 43. However, since the aperture of the through hole 10 is much larger than that of the fine hole 43, the amount of the working fluid flowing from the lower chamber LM into the reservoir chamber M per unit time is larger than the amount of the working fluid flowing from the reservoir chamber M into the fluid passage 41 per unit time, and the volume of the reservoir chamber M becomes larger as viewed from the entire pressing process, and the first piston 8 continues to move upward in the axial direction against the elastic force of the lower elastic body 7.
Meanwhile, due to the incompressibility of the working liquid, the poking sheet 11 is always in a closed state, and the working liquid in the liquid inlet 33 cannot flow into the lower chamber LM.
When the push type head 1 is pressed until the upper elastic body 5 is compressed to the maximum elastic compression position, the push type head 1 is released. At this time, the main column 4 and the second piston 10 are moved upward in the axial direction by the restoring force of the upper elastic body 5, so that the pressure in the lower chamber LM is formed to be a negative pressure. Therefore, the annular plate portion 92 of the elastic spacer 9 returns to the initial state to close the through hole 12. That is, the pressure storage type atomizer a is gradually returned from the compressed state shown in fig. 3 to the free state shown in fig. 2. At the same time, the first piston 8 moves downward by the restoring force of the lower elastic body 7 to urge the working liquid in the reservoir chamber M, so that the working liquid flows into the fluid passage 41 through the fine hole 43 more quickly until the first piston 8 moves to the initial position in abutment with the columnar portion 91 of the elastic spacer 9 to close the fine hole 43. Thereby, the pressure accumulating type atomizer a is returned to the free state shown in fig. 2. On the other hand, since the pressure in the lower chamber LM is negative, the paddle 11 is opened, and the working fluid continuously flows into the lower chamber LM from the liquid inlet portion 33. Thereby, the lower chamber LM is always filled with the working liquid.
Further, as described above, the aperture of the through hole 12 is much larger than the aperture of the fine hole 43, and the amount of the working fluid flowing into the reservoir chamber M from the lower chamber LM per unit time is larger than the amount of the working fluid flowing into the fluid passage 41 from the reservoir chamber M per unit time, so that the working fluid can be continuously discharged from the reservoir chamber M to the outside through the fine hole 43 and the fluid passage 41 by being pressed and released one or more times. That is, in addition to the above-described configuration, the effect of continuing the spraying can be achieved by one or more times of pressing and releasing.
Technical effects of the implementation
According to the embodiment, the pressure storage type spray pump realizes the effect of continuous spraying by adopting a double-spring double-piston structure and a one-way valve mechanism. Further, in view of the fact that the working fluid is corrosive, the structure of the pressure-accumulating type spray pump is improved in such a manner that an elastic member, which is generally provided in a space in which the working fluid is stored, is attached to the outside of the cylinder. This can avoid the problem that the elastic member, which is often deformed and easily aged in the pressure storage type spray pump, is corroded and aged due to long-term immersion in the working fluid. In this way, it is not necessary to consider that the corrosion is prevented by changing the material of the elastic member. Therefore, even if the elastic component is made of silicon rubber or plastic such as polyethylene, polypropylene and poly-long-chain olefin, the long service life of the pressure storage type spray pump can be ensured. In this case, an all-plastic spray pump may be used as the pressure accumulating type spray pump, that is, the entire pressure accumulating type spray pump may be made of plastic. Thus, only plastic processing can be performed, cost can be saved, and processing difficulty can be reduced. In addition, because the pressure storage type spray pump is an all-plastic spray pump, the spray pump can be directly extruded and recycled for use after use, and does not need to be burnt or recycled after disassembly, so that the spray pump has better environmental protection performance and high regeneration utilization rate.
In addition, the present invention can freely combine the respective embodiments, or appropriately modify or omit the respective embodiments within the scope thereof.
Claims (11)
1. A pressure storage type spray pump (P) comprising a main column (4) and a cylinder body (3), wherein a fluid passage (41) extending in an axial direction is formed inside the main column (4), the cylinder body (3) contains a working fluid, and the main column (4) is inserted, characterized by further comprising:
the upper end of the upper elastic part (5) is fixedly connected to the main column (4);
the upper sleeve (6) is fixedly connected to the cylinder body (3) and is fixedly connected with the lower end of the upper elastic piece (5);
the lower elastic piece (7) is arranged between the main column (4) and the cylinder body (3), and the upper end of the lower elastic piece (7) is fixedly connected to the upper envelope (6);
the first piston (8), the first piston (8) is arranged at the lower side of the lower elastic part (7) along the axial direction, and the lower end of the lower elastic part (7) is fixedly connected with the first piston (8); and
a one-way valve mechanism provided on a lower side of the first piston (8) in the axial direction with a reservoir chamber (M) formed between the one-way valve mechanism and the first piston (8), the one-way valve mechanism being configured to open only when the main column (4) is pressed, and to allow only the working liquid to flow from the cylinder (3) into the reservoir chamber (M).
2. The pressure storing spray pump (P) according to claim 1,
the pressure storage type spray pump (P) is a full plastic spray pump.
3. A pressure accumulating spray pump (P) according to claim 2,
the upper elastic element (5) and/or the lower elastic element (7) are made of silicone rubber.
4. A pressure accumulating spray pump (P) according to claim 2,
the upper elastic part (5) and/or the lower elastic part (7) are made of polyethylene or polypropylene and poly-long-chain olefin through blending.
5. The pressure storing spray pump (P) according to claim 1,
the check valve mechanism includes:
a second piston (10), the second piston (10) and the first piston (8) being disposed in the axial direction with the reservoir chamber (M) therebetween and being fixed to the main column (4), the second piston (10) having a through hole (12) formed therethrough in the axial direction; and
an elastic spacer (9), the elastic spacer (9) being configured to cover the through hole (12), the elastic spacer (9) being deformed to open the through hole (12) by pressing the main column (4).
6. A pressure accumulating spray pump (P) according to claim 5,
the second piston (10) is formed with a plurality of through holes (12) at equal intervals in the circumferential direction.
7. The pressure storing spray pump (P) according to claim 1,
a fine hole (43) communicating with the fluid passage is formed in a side wall of the main column (4), the fine hole (43) being closed by the first piston (8),
by pressing the main column (4), the fine hole (43) is opened to place the reservoir chamber (M) in fluid communication with the fluid passage (41).
8. A pressure accumulating spray pump (P) according to claim 7,
the fine holes (43) are formed in the side wall of the main column (4) at equal intervals in the circumferential direction.
9. A pressure storing type atomizer (A) comprising:
the pressure-storing spray pump (P) of any one of claims 1 to 8; and
the push type spray head (1) is matched with the pressure storage type spray pump (P) to apply force to the main column (4) of the pressure storage type spray pump (P) along the axial direction.
10. A pressure storing spraying device (A) according to claim 9,
further comprising a cover member (C) configured to receive inside a portion of the cylinder (3) into which the main column (4) is inserted.
11. A pressure storing spraying device (A) according to claim 10,
the cap member (C) is a screw cap having a screw thread (C1) formed on an inner wall thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263361.3U CN216270996U (en) | 2021-09-17 | 2021-09-17 | Pressure storage type spray pump and pressure storage type spray device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122263361.3U CN216270996U (en) | 2021-09-17 | 2021-09-17 | Pressure storage type spray pump and pressure storage type spray device |
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| Publication Number | Publication Date |
|---|---|
| CN216270996U true CN216270996U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122263361.3U Active CN216270996U (en) | 2021-09-17 | 2021-09-17 | Pressure storage type spray pump and pressure storage type spray device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216270996U (en) |
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2021
- 2021-09-17 CN CN202122263361.3U patent/CN216270996U/en active Active
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Effective date of registration: 20230414 Address after: Room 232, North Zone, Building 5, No. 3131 Jinshajiang Road, Zhenxin Street, Jiading District, Shanghai, 201824 Patentee after: SHANGHAI SHICHUANG PACKAGING TECHNOLOGY CO.,LTD. Patentee after: SHANGHAI XIXIAIER QIDONG DAILY CHEMICAL ARTICLES Co.,Ltd. Address before: 528467 first floor, No. 3, Longtang Second Road, Tanzhou town, Zhongshan City, Guangdong Province Patentee before: Zhongshan Yachuang Packaging Technology Co.,Ltd. Patentee before: SHANGHAI XIXIAIER QIDONG DAILY CHEMICAL ARTICLES Co.,Ltd. |