CN110329654B - Novel shower nozzle improves structure - Google Patents
Novel shower nozzle improves structure Download PDFInfo
- Publication number
- CN110329654B CN110329654B CN201910729680.3A CN201910729680A CN110329654B CN 110329654 B CN110329654 B CN 110329654B CN 201910729680 A CN201910729680 A CN 201910729680A CN 110329654 B CN110329654 B CN 110329654B
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- Prior art keywords
- ring
- piston
- suction pipe
- pump
- pump body
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- 239000000463 material Substances 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000006872 improvement Effects 0.000 claims description 8
- 239000010902 straw Substances 0.000 claims description 6
- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
Abstract
The invention relates to a novel spray head improved structure, wherein an air vent is formed in a piston, a gasket which can be matched with the air vent is arranged between a piston rod and the piston, meanwhile, a one-way valve is arranged at the bottom of a pump body, when a pressing head cap pumps out a primary material, the negative pressure is generated in a bottle body, and forces the gasket to open the air vent and open the one-way valve, so that external air is supplemented into the bottle body.
Description
Technical Field
The invention relates to the technical field of cosmetic containers, in particular to a novel spray head improved structure.
Background
In the cosmetic field, bottles with spray heads are often used to store liquids, such as emulsion pumps. The emulsion pump is widely used for cosmetics and bath products, and when the emulsion pump needs to be used, the needed emulsion can be taken out by pressing the pressing head. The Chinese patent No. CN203127397U discloses a novel emulsion pump (201320109153.0) which comprises a pressing head, wherein the pressing head is sleeved at the upper end of a screw, clamping positions are correspondingly arranged at the bottom of the pressing head and the inside of the screw, the bottom of the pressing head is matched with a buckling line arranged at the upper end of the screw, a main column is arranged inside the screw, the top end of the main column is matched with the inside of the pressing head in a mutually chamfering way, an auxiliary column is arranged below the main column, a spring is arranged between the main column and the auxiliary column, and a suction pipe is sleeved at the lower end of the screw. The emulsion pump with the structure is connected with the clamping position inside the screw teeth by adopting the bottom of the pressing head, the pressing head is pressed to rotate by 90 degrees to switch the switch, the inside of the pressing head is matched with the top end of the main column in a chamfering way, and suction force and liquid pumping effect can be generated when the pressing head moves up and down.
The prior art piston is generally similar to the structure, the nozzle on the pressing head cannot be sealed, the content can be prevented from being oxidized only by arranging a cover cap outside the pressing head, the cover cap can play a role in sealing to a certain extent, but the content remained in the piston is extremely easy to contact with air to be oxidized, the usage amount of each time of a user is just the amount remained in the piston, and the portion used by each time of the user is an oxidized portion, so that the use effect is affected.
In order to solve the problem, the applicant applies for a spray head structure (application number: 201711405330.9) in the 12 th 2017 and 22 th, the solution comprises a piston and a head cap assembly, the top of the piston is propped against the inner top surface of the head cap assembly, the head cap assembly comprises a head cap body and a nozzle, the head cap body is rotatably arranged on the piston, the top of the piston is provided with a mounting cavity for accommodating the nozzle, the side wall of the mounting cavity is provided with a through hole corresponding to the discharge end of the nozzle, and the side part of the head cap body is provided with a material guide channel communicated with the through hole. The head cap body can be rotatably arranged on the piston, so that the nozzle and the piston are kept relatively still all the time, and when the head cap is required to be used, the head cap body is rotated, so that a material guide channel on the head cap body corresponds to a discharge end of the nozzle on the piston, and the output of content can be realized; after the use is finished, the head cap body is rotated, so that the material guide channel on the head cap body is staggered with the discharge end of the nozzle on the piston, the discharge end of the nozzle can be sealed, and the content retained in the piston is prevented from being oxidized.
However, in the subsequent production and application, the same channel is adopted for material output and air filling, namely, the pump body middle channel, the piston rod middle channel and the material guide channel, so that certain interference exists between the air filling process and the material output process, when the device is used for the first time, the material can be pumped out according to the set quantity once, and after the device is continuously used, the actual pumped-out material quantity is less than the set pumping quantity, so that the pumping quantity of the material is unstable, and the larger fluctuation exists, thereby influencing the experience of a user.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel spray head improved structure which enables a material output channel and an air supplementing channel to be independent relatively so as to avoid mutual interference of the material output channel and the air supplementing channel and improve discharge stability.
The technical scheme adopted for solving the technical problems is as follows: novel shower nozzle improves structure, its characterized in that: comprising
The pump body is provided with a first flow passage which is positioned in the middle of the pump body and is penetrated along the axial direction and a pump cavity which is arranged around the periphery of the first flow passage, and a one-way valve which can allow gas to flow downwards in a negative pressure state is arranged at the bottom of the pump cavity;
the pump sleeve is sleeved outside the pump body, and the upper part of the pump sleeve is provided with an inner ring which is formed by extending downwards in a circular tube shape from the top of the pump sleeve;
the lower end of the piston rod is inserted into the pump body in a vertically movable way and is provided with a second flow passage communicated with the first flow passage, and the upper end of the piston rod is exposed out of the inner ring of the pump sleeve;
the piston is sleeved at the lower part of the piston rod and can slide up and down in the pump cavity along with the piston rod, and an air vent which is vertically communicated is arranged in the piston;
the gasket is correspondingly arranged below the ventilation opening of the piston, sleeved at the edge of the lower end of the piston rod and provided with a sealing sheet capable of covering the ventilation opening;
the head cap is sleeved on the upper part of the piston rod, the lower end of the head cap abuts against the upper end of the piston, and the head cap is provided with a third flow passage which is communicated with the second flow passage and is used for outputting materials; and
the first elastic piece is arranged between the pump body and the piston rod, so that the piston rod and the head cap always keep the upward movement trend.
In the above scheme, the edge of the lower end of the piston rod extends outwards to form an assembly ring for limiting the sleeving of the gasket, the cross section of the gasket is shaped into an L shape, the vertical part of the L-shaped gasket is clamped between the upper surface of the assembly ring and the lower end face of the piston, and the transverse part of the L-shaped gasket is close to the lower end face of the piston and extends outwards along the radial direction to form the sealing piece. Above-mentioned structure not only is convenient for assemble, and the gasket wholly adopts elastic material such as silica gel, rubber to mould plastics into an organic whole, and the vertical part thickness of L shape gasket is greater than horizontal part thickness, and vertical part makes and plays better sealed effect between piston and the piston rod, and horizontal part can cover the ventilative mouth on the piston to open ventilative mouth under the negative pressure state of pump body below, supply the air supply and mend.
Preferably, the piston is provided with an inner ring and an outer ring, the inner ring and the outer ring are connected through an annular sheet, and the ventilation opening is arranged on the annular sheet; the inner ring is arranged close to the outer peripheral wall of the piston rod, the upper end of the inner ring abuts against the lower end of the head cap, and the lower end of the inner ring abuts against the gasket; the outer wall of the lower end of the outer ring abuts against the inner peripheral wall of the pump body and is in sliding fit, and the upper end of the outer ring abuts against the inner ring of the pump sleeve. The structure is convenient to assemble and is convenient to be matched with the L-shaped gasket to open or close the ventilation opening.
As an improvement, a convex ring which is arranged along the circumferential direction is formed at the outer edge of the lower surface of the transverse part of the L-shaped gasket, one part of the convex ring is arranged corresponding to the ventilation opening, and the other part of the convex ring is arranged corresponding to the periphery of the ventilation opening. The arrangement of the convex ring is beneficial to improving the sealing effect on the ventilation opening when the ventilation opening is closed, and is beneficial to enabling the edge of the transverse part to be turned down when the ventilation opening is opened.
In each of the above schemes, the improved structure of the spray head further comprises a bottle body, a suction pipe and a current limiting rod, the pump body is arranged at the opening part of the bottle body, the lower part of the pump body is positioned in the bottle body, the upper end of the suction pipe is connected with the lower end of the first flow channel of the pump body, the lower end of the suction pipe is supported at the bottom of the bottle through a second elastic piece, the upper end of the current limiting rod is connected with the head cap, and the lower end of the current limiting rod sequentially penetrates through the third flow channel, the second flow channel and the first flow channel to extend into the suction pipe.
Preferably, a supporting ring arranged close to the lower end of the suction pipe is arranged on the inner peripheral wall of the suction pipe, a gap for the material to pass through is formed in the supporting ring, and in the downward moving state of the head cap, the lower end of the current-limiting rod abuts against the supporting ring and compresses the second elastic piece to drive the suction pipe to move downward. By adopting the structure, the suction pipe is driven to move downwards to fully contact materials, so that the materials are output.
Further preferably, the supporting ring is in an shape when viewed from top, the upper surface of the supporting ring gradually inclines downwards from the position near the outer edge to the middle part to form an arc-shaped surface, and the central part of the supporting ring forms a supporting surface which is horizontally arranged and can be matched with the lower end of the flow limiting rod. By adopting the structure, the matching stability between the current limiting rod and the supporting ring is improved, and the special structure of the supporting ring can also prevent the material sucked into the suction pipe from partially returning during discharging, thereby affecting quantitative discharging.
Preferably, the improved structure of the spray head further comprises a plug, the lower part of the plug is sleeved on the periphery of the suction pipe and is in tight fit connection with the suction pipe, the inner edge of the upper part of the plug is clamped between the lower end of the pump body and the upper end of the suction pipe, a connecting column extending downwards is arranged on the lower end face of the pump body, and correspondingly, a connecting hole matched and connected with the connecting column is formed in the plug. A close-fit connection mode is adopted between the upper part of the suction pipe and the lower end of the pump body, but a certain gap is inevitably formed between the inner wall of the suction pipe and the outer wall of the pump body, and partial leakage of materials possibly occurs at the gap.
Preferably, the straw and the second elastic piece are of an integrated structure, the second elastic piece is an elastic rib spirally arranged at the lower end of the straw, and the lower end of the elastic rib is connected with a supporting ring which is arranged at the bottom of the bottle body.
In each scheme, an opening communicated with the pump cavity is formed in the bottom of the pump body, and the one-way valve is arranged at the opening. The opening is arranged at the bottom of the pump body and corresponds to any ventilation opening, so that air can be quickly supplemented into the bottle body.
Preferably, the check valve comprises a valve plug, the valve plug is provided with a limit post capable of restraining the opening and a circular sealing piece which is arranged at the tail of the limit post in an extending mode, and the circular sealing piece covers the lower surface of the opening.
Compared with the prior art, the invention has the advantages that: according to the invention, the air vent is formed in the piston, the gasket which can be matched with the air vent is arranged between the piston rod and the piston, meanwhile, the one-way valve is arranged at the bottom of the pump body, when the pressing head cap pumps out primary materials, the negative pressure is generated in the bottle body, and forces the gasket to open the air vent and the one-way valve, so that external air is fed into the bottle body.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;
FIG. 4 is a cross-sectional view of FIG. 1;
fig. 5 is a schematic structural view of a support ring according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 5, the novel spray head improvement structure of the present embodiment includes a pump body 1, a pump sleeve 2, a piston rod 3, a piston 4, a gasket 5, a head cap 6, a first elastic member 10, a bottle 7, a suction pipe 8, a flow limiting rod 9, and a plug 100.
The pump body 1 is provided with a first flow passage 11 which is positioned in the middle of the pump body 1 and is penetrated along the axial direction and a pump cavity 12 which is arranged around the periphery of the first flow passage 11, and a one-way valve 13 which can allow gas to flow downwards in a negative pressure state is arranged at the bottom of the pump cavity 12. The pump sleeve 2 is sleeved outside the pump body 1, and the upper part of the pump sleeve is provided with an inner ring 21 which is formed by extending downwards in a circular tube shape from the top of the pump sleeve 2; the lower end of the piston rod 3 is inserted in the pump body 1 so as to be movable up and down and has a second flow passage 31 communicating with the first flow passage 11, and the upper end of the piston rod 3 protrudes outside the inner ring 21 of the pump housing 2. The piston 4 is sleeved on the lower part of the piston rod 3 and acts together with the piston rod 3, the outer wall of the lower end of the piston abuts against the inner peripheral wall of the pump body 1 and is in sliding fit, and an annular piece 44 in the piston 4 is provided with an air ventilation opening 41 which penetrates up and down. The lower end edge of the piston rod 3 is outwards extended to form an assembling ring 32 for limiting the assembling of the gasket 5, the gasket 5 is sleeved on the piston rod 3 and clamped between the assembling ring 32 and the lower end face of the piston 4, and the top edge of the gasket 5 is outwards extended to form a sealing sheet 51 for covering the ventilation port 41. The head cap 6 is sleeved on the upper part of the piston rod 3, the lower end of the head cap 6 abuts against the upper end of the piston 4, the head cap 6 is provided with a third flow passage 61 communicated with the second flow passage 31 and used for outputting materials, and one side of the head cap 6 is provided with a nozzle 62 communicated with the third flow passage 61. The first elastic member 10 is disposed between the pump body 1 and the piston rod 3, so that the piston rod 3 and the head cap 6 always keep a trend of upward movement. The first elastic member 10 is a spring, the upper end of which abuts against the inner top wall of the piston rod 3, and the lower end of which abuts against the inner bottom wall of the pump cavity 12 of the pump body 1.
Specifically, the gasket 5 is shaped in cross section as an L, with its vertical portion 52 sandwiched between the upper surface of the fitting ring 32 and the lower surface of the annular connecting wall 44 of the piston 4, and with its lateral portion constituting the sealing piece 51, the lateral portion extending radially outwards adjacent to the lower surface of the annular connecting wall 44 of the piston 4. The structure is convenient to assemble, the gasket 5 is integrally molded into an integral piece by adopting elastic materials such as silica gel, rubber and the like, the thickness of the vertical part 52 of the L-shaped gasket is larger than that of the horizontal part, the vertical part 52 has a good sealing effect between the piston 4 and the piston rod 3, the horizontal part can cover the ventilation opening 41 on the piston 4, and the ventilation opening 41 is opened in a negative pressure state below the pump body 1 for supplementing gas.
The piston 4 of this embodiment has an inner ring 42 and an outer ring 43, between which annular pieces 44 are connected, the inner ring 42 is disposed close to the outer peripheral wall of the piston rod 3, and the upper end abuts against the lower end of the head cap 6, and the lower end abuts against the gasket 5, so that the gasket 5 is sandwiched between the fitting ring 32 and the lower end of the inner ring 42 of the piston 4. The ventilation ports 41 are formed on the annular piece 44, four ventilation ports 41 are arranged at intervals along the circumferential direction in the embodiment, the outer wall of the lower end of the outer ring 43 abuts against the inner circumferential wall of the pump body 1, and the pump cavity can slide up and down. This structure is convenient for assembly, and is convenient for cooperate with the above-mentioned L-shaped gasket 5 to realize opening or closing of the ventilation opening 41. At the outer edge of the lower surface of the lateral portion of the L-shaped gasket 5, a bead 53 is formed which is arranged in the circumferential direction, and a part of the bead 53 is arranged corresponding to the ventilation port 41, and another part of the bead 53 is arranged corresponding to the periphery of the first ventilation port 41. The provision of the bead 53 is advantageous in that the sealing effect on the ventilation opening 41 is improved when the ventilation opening 41 is closed, and in that the edge of the lateral portion is unfolded downward when the ventilation opening 41 is opened.
In this embodiment, the pump body 1 is mounted at the mouth of the bottle body 7 and the lower part is located in the bottle body 7, the upper end of the suction pipe 8 is connected with the lower end of the first flow channel 11 of the pump body 1, and the lower end of the suction pipe 8 is supported at the bottom of the bottle through the second elastic member 20. The flow-limiting rod 9 is arranged in the flow passage between the head cap 6 and the suction pipe 8, the upper end of the flow-limiting rod is connected with the head cap 6, and the lower end of the flow-limiting rod penetrates through the third flow passage 61, the second flow passage 31 and the first flow passage 11 and stretches into the suction pipe 8. The inner peripheral wall of the suction pipe 8 is provided with a support ring 81 which is arranged close to the lower end of the suction pipe 8, the support ring 81 is provided with a notch 82 through which a material passes, and in the downward moving state of the head cap 6, the lower end of the flow limiting rod 9 abuts against the support ring 81 and compresses the second elastic piece 20 to drive the suction pipe 8 to move downwards so as to drive the suction pipe 8 to move downwards, and the support ring is fully contacted with the material, so that the material is output.
The second elastic member 20 and the straw 8 in this embodiment are integrally formed, and have an elastic rib 201 and a supporting ring 202, the supporting ring 202 is located at the bottom of the bottle 7, and the elastic rib 201 is 3 and is spirally arranged between the lower end of the straw 8 and the supporting ring 202 at intervals. With this structure, the suction pipe 8 is kept moving upward, and the suction pipe is automatically reset after the discharging is completed.
The support ring 81 of the embodiment is in an "x" shape in a top view, and the upper surface of the support ring 81 gradually slopes down from the near outer edge to the middle to form an arc surface 811, and the central portion of the support ring 81 forms a support surface 812 that is horizontally arranged and can be matched with the lower end of the flow limiting rod 9. By adopting the structure, the matching stability between the current limiting rod 9 and the supporting ring 81 is improved, and the special structure of the supporting ring 81 can also prevent the material sucked into the suction pipe 8 from partially returning during discharging to influence quantitative discharging.
The lower part of the rod body of the flow-limiting rod 9 in this embodiment is formed with an extraction structure 91 capable of lifting up the content, and the outer peripheral surface of the upper part of the rod body is convexly provided with a flow-guiding structure 92 capable of guiding the content upward and increasing the dispersion degree in the content ejection state. Wherein, the extraction structure 91 is a protrusion arranged along the circumferential direction of the rod body, and the protrusion is a plurality of protrusions and is arranged at intervals up and down along the rod body. The flow guiding structure 92 is a spiral rib extending along the length direction of the rod body, the spiral rib is positioned in the piston rod 3 and the pump body 1, and the spiral rib can play a role in guiding fluid, thereby being beneficial to fluid output and expanding the spraying surface of powder or liquid. The number of the spiral ribs is two, and the spiral ribs are arranged at intervals in the circumferential direction of the rod body. The edge of the spiral rib and the rod body are in smooth transition at the joint of the spiral rib and the rod body.
The lower part of the plug 100 is sleeved on the periphery of the suction pipe 8 and is in tight fit connection with the suction pipe 8, the inner edge of the upper part of the plug 100 is clamped between the lower end of the pump body 1 and the upper end of the suction pipe 8, a connecting column 14 extending downwards is arranged on the lower end face of the pump body 1, and correspondingly, a connecting hole 101 which is in fit connection with the connecting column 14 is formed in the plug 100. A tight-fit connection mode is adopted between the upper part of the suction pipe 8 and the lower end of the pump body 1, but a certain gap is inevitably formed between the inner wall of the suction pipe 8 and the outer wall of the pump body 1, a part of material possibly leaks at the gap, and the plug 100 can play a role in sealing the upper port of the suction pipe 8 to prevent the material from leaking.
An opening 121 communicated with the pump cavity 12 is formed in the bottom of the pump body 1, and the one-way valve 13 is arranged at the opening 121. The opening 121 is arranged at the bottom of the pump body 1 and corresponds to any ventilation opening 41, which is beneficial to quickly filling air into the bottle body 7. The check valve 13 comprises a valve seat and a valve plug which are assembled in the opening 121, the valve plug is in an inverted-T shape, the check valve is provided with a limiting column 131 which can be restrained in a valve seat hole and a circular sealing piece 132 which is extended at the tail of the limiting column 131 and is in an enlarged shape, and the circular sealing piece 132 covers the lower surface of the opening 121. The inner wall of the valve seat is partially extended to the middle to form oppositely arranged extension arms 122, and a limit post 131 is arranged through the through hole of the valve seat and is provided with a step 133 on the outer peripheral wall of the upper part, which can be supported on the extension arms 122, so as to be convenient for restraining the valve plug on the valve seat. The valve plug is also made of elastic materials such as silica gel, rubber and the like.
When the spray head of the embodiment is used, the pressure head cap 6 is pressed down, the head cap 6 drives the piston rod 3, the piston 4 and the flow limiting rod 9 to move downwards together, so that the spring is compressed, when the lower end of the flow limiting rod 9 abuts against the support ring 81 of the suction pipe 8, the second elastic piece 20 is compressed downwards to drive the suction pipe 8 to move downwards, and in the process, liquid in the bottle body 7 is pressurized and flows into the head cap 6 through the suction pipe 8 through the pump body 1 and is sprayed out through the nozzle 62; after the head cap 6 is loosened, under the action of spring force, the head cap 6, the limiting rod 9 and the piston 4 move upwards together until the piston 4 props against the pump sleeve 2, the suction pipe 8 moves upwards to reset under the action of deformation force of an elastic structure at the lower end of the suction pipe 8, in the process, due to negative pressure in the bottle body 7 and the action of atmospheric pressure, the gasket 5 opens the first ventilation port 41, the one-way valve 13 is opened, and external air is filled into the bottle body 7 through gaps between the head cap 6 and the pump sleeve 2, the first ventilation port 41, the pump cavity 12 and the opening 121.
The improved structure of the embodiment not only can improve the liquid outlet stability, but also can avoid the phenomenon that the powder is easy to agglomerate when the content is powder.
Claims (6)
1. An improvement structure of a spray head, which is characterized in that: comprising
The pump body is provided with a first flow passage which is positioned in the middle of the pump body and is penetrated along the axial direction and a pump cavity which is arranged around the periphery of the first flow passage, and a one-way valve which can allow gas to flow downwards in a negative pressure state is arranged at the bottom of the pump cavity;
the pump sleeve is sleeved outside the pump body, and the upper part of the pump sleeve is provided with an inner ring which is formed by extending downwards in a circular tube shape from the top of the pump sleeve;
the lower end of the piston rod is inserted into the pump body in a vertically movable way and is provided with a second flow passage communicated with the first flow passage, and the upper end of the piston rod is exposed out of the inner ring of the pump sleeve;
the piston is sleeved at the lower part of the piston rod and can slide up and down in the pump cavity along with the piston rod, and an air vent which is vertically communicated is arranged in the piston;
the gasket is correspondingly arranged below the ventilation opening of the piston, sleeved at the edge of the lower end of the piston rod and provided with a sealing sheet capable of covering the ventilation opening;
the head cap is sleeved on the upper part of the piston rod, the lower end of the head cap abuts against the upper end of the piston, and the head cap is provided with a third flow passage which is communicated with the second flow passage and is used for outputting materials; and
the first elastic piece is arranged between the pump body and the piston rod, so that the piston rod and the head cap always keep the upward moving trend;
the novel bottle comprises a bottle body, a suction pipe and a flow limiting rod, wherein the pump body is arranged at the mouth part of the bottle body and at the lower part of the bottle body, the upper end of the suction pipe is connected with the lower end of a first flow channel of the pump body, the lower end of the suction pipe is supported at the bottom of the bottle through a second elastic piece, the upper end of the flow limiting rod is connected with a head cap, and the lower end of the flow limiting rod sequentially penetrates through a third flow channel, a second flow channel and a first flow channel to extend into the suction pipe; the inner peripheral wall of the suction pipe is provided with a support ring which is arranged close to the lower end of the suction pipe, a gap for a material to pass through is formed in the support ring, and in the downward moving state of the head cap, the lower end of the flow limiting rod abuts against the support ring and compresses the second elastic piece to drive the suction pipe to move downward; the supporting ring is in a shape when overlooking, the upper surface of the supporting ring gradually inclines downwards from the position near the outer edge to the middle part to form an arc-shaped surface, and the central part of the supporting ring forms a supporting surface which is horizontally arranged and can be matched with the lower end of the flow limiting rod; the straw and the second elastic piece are of an integrated structure, the second elastic piece is an elastic rib spirally arranged at the lower end of the straw, and the lower end of the elastic rib is connected with a supporting ring which is arranged at the bottom of the bottle body.
2. The spray head improvement structure according to claim 1, characterized in that: the sealing device is characterized in that an assembling ring for limiting the sleeving of the gasket is formed by outwards extending the edge of the lower end of the piston rod, the cross section of the gasket is shaped into an L shape, the vertical part of the L-shaped gasket is clamped between the upper surface of the assembling ring and the lower end face of the piston, and the transverse part of the L-shaped gasket is close to the lower end face of the piston and extends outwards along the radial direction to form the sealing piece.
3. The spray head improvement structure according to claim 2, characterized in that: the piston is provided with an inner ring and an outer ring, the inner ring and the outer ring are connected through an annular sheet, and the ventilation opening is arranged on the annular sheet; the inner ring is arranged close to the outer peripheral wall of the piston rod, the upper end of the inner ring abuts against the lower end of the head cap, and the lower end of the inner ring abuts against the gasket; the outer wall of the lower end of the outer ring abuts against the inner peripheral wall of the pump body and is in sliding fit, and the upper end of the outer ring abuts against the inner ring of the pump sleeve.
4. The spray head improvement structure according to claim 2, characterized in that: a convex ring which is arranged along the circumferential direction is formed at the outer edge of the lower surface of the transverse part of the L-shaped gasket, one part of the convex ring is arranged corresponding to the ventilation opening, and the other part of the convex ring is arranged corresponding to the periphery of the ventilation opening.
5. The shower head improvement structure according to any one of claims 1 to 4, characterized in that: the novel suction pipe is characterized by further comprising a plug, wherein the lower part of the plug is sleeved on the periphery of the suction pipe and is in tight fit connection with the suction pipe, the inner edge of the upper part of the plug is clamped between the lower end of the pump body and the upper end of the suction pipe, a connecting column extending downwards is arranged on the lower end face of the pump body, and correspondingly, a connecting hole matched and connected with the connecting column is formed in the plug.
6. The shower head improvement structure according to any one of claims 1 to 4, characterized in that: an opening communicated with the pump cavity is formed in the bottom of the pump body, and the one-way valve is arranged at the opening; the one-way valve comprises a valve plug, wherein the valve plug is provided with a limiting column capable of restraining the opening and a circular sealing sheet which is arranged at the tail part of the limiting column in an extending mode, and the circular sealing sheet covers the lower surface of the opening.
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| CN201910729680.3A CN110329654B (en) | 2019-08-08 | 2019-08-08 | Novel shower nozzle improves structure |
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| CN201910729680.3A CN110329654B (en) | 2019-08-08 | 2019-08-08 | Novel shower nozzle improves structure |
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| CN110329654B true CN110329654B (en) | 2024-04-16 |
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