CN210311612U - Foam pump with breathing sheet - Google Patents
Foam pump with breathing sheet Download PDFInfo
- Publication number
- CN210311612U CN210311612U CN201921146914.3U CN201921146914U CN210311612U CN 210311612 U CN210311612 U CN 210311612U CN 201921146914 U CN201921146914 U CN 201921146914U CN 210311612 U CN210311612 U CN 210311612U
- Authority
- CN
- China
- Prior art keywords
- main valve
- sheet
- valve rod
- piston
- breathing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 54
- 239000006260 foam Substances 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000005187 foaming Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000241 respiratory effect Effects 0.000 description 9
- 238000007664 blowing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000195940 Bryophyta Species 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000008266 hair spray Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011929 mousse Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1087—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
- B05B11/01—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
-
- 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
Landscapes
- Closures For Containers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
A foam pump with a breathing sheet comprises a nozzle pressing head, a screw ring cover and a pump body, wherein the pump body comprises a pump body shell, a liquid inlet one-way valve, a large piston, a main valve rod, a valve needle, a rod bottom piston, a spring and a fixing clamping ring. The breathing piece structure is uniquely designed, the breathing piece, the main valve rod and the large piston are matched, air inlet is smoother, the pressure of an air inlet cavity is higher, higher internal pressure can be generated, gas and liquid are uniformly mixed, and foams are abundant.
Description
Technical Field
The utility model relates to a pump class, especially a foam pump with breathe piece.
Background
The foam pump is also called as a foaming pump, is usually used for packaging containers such as hand sanitizer, liquid detergent, mousse, hair spray and the like, a liquid pump is connected with a bottle mouth part, an air inlet cavity is arranged near the liquid pump, and after high-pressure liquid and compressed air are mixed, a large amount of foam is generated through a foaming net with dense meshes and flows out from a nozzle of a pressing head.
For example, patent No. CN201110128683.5 "an external spring type foam pump" is provided in a screw cap of a liquid container, the external spring type foam pump is filled with liquid in the liquid container when in specific use, a user quantitatively pumps out the liquid in the liquid container by pressing the external spring type foam pump, and in the process of completing the action of pumping out the liquid, the pumped liquid is mixed with air by means of the external spring type foam pump, and the external spring type foam pump includes a liquid pumping cavity, an air intake cavity and a liquid-air mixing cavity. The liquid pumping cavity is used for containing liquid to be pumped out, the air inlet cavity is used for providing air to be mixed, the liquid to be pumped out and the air to be mixed provided by the air inlet cavity are mixed in the liquid-air mixing cavity, the liquid to be pumped out and the air to be mixed are finally discharged out of the foam pump with the external spring, and the return spring is arranged in the air inlet cavity.
The existing foam pump adopts an air valve similar to a piston when sucking air and compressing air, adopts a mode similar to an inflator to provide the compressed air, and when a large piston and a connecting cover are attached together, an air inlet valve is closed, and when the large piston and the connecting cover are separated, the air inlet valve is opened; when the pull rod valve plate and the connecting rod valve plate are jointed together, the air blowing valve is closed, and when the pull rod valve plate and the connecting rod valve plate are separated, the air blowing valve is opened. The structure of the valve plate is complex because the air inlet cavity needs the large piston, the connecting cover, the pull rod valve plate and the connecting rod. And negative pressure is respectively generated on the air inlet valve and the air blowing valve during air inlet and air blowing, when the internal pressure of the air inlet cavity is increased, the air inlet valve is also pushed open, the internal pressure of the air inlet cavity is finally reduced, the air pressure generated by the air blowing valve is limited, and higher closed internal pressure cannot be generated.
In addition, when the foam pump is reset, the foaming liquid in the mixing cavity possibly flows back to the air inlet cavity along the air inlet valve. And a part of foaming liquid is left in the air inlet cavity, so that the effective gas exchange space of the air inlet cavity is reduced. And the next work of the air inlet cavity is not facilitated. The bubbling effect is therefore increasingly poor when the nozzle is pressed rapidly several times.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the utility model provides a foam pump with breathe slice structure utilizes the respiratory of breathing the piece, realizes the operation of taking a breath in the chamber of admitting air, and the structure is simpler, simple to operate to can improve the interior pressure in the chamber of admitting air, produce more atmospheric pressure at the hybrid chamber, it is even to go out the bubble, and the foam is abundant and the persistence is better.
The utility model provides a technical scheme that above-mentioned problem adopted: a foam pump with a breathing sheet comprises a nozzle pressing head, a screw ring cover and a pump body, wherein the pump body comprises a pump body shell, a liquid inlet one-way valve, a large piston, a main valve rod, a valve needle, a rod bottom piston, a spring and a fixing clamp ring; an air inlet cavity is formed between the large piston and the pump body shell, a liquid inlet cavity is formed between the liquid inlet one-way valve and the valve needle, a high-pressure liquid cavity is formed between the main valve rod and the upper section of the large piston, a mixing cavity is arranged above the large piston, and a foaming net is arranged in the mixing cavity. The main valve rod is provided with an elastic bracket, the outer side of the elastic bracket is connected with a lifting ring, the lifting ring is contacted with the outer edge of the breathing sheet, and the elastic bracket pushes the breathing sheet against the bottom of the inner wall of the large piston; the inner side of the breathing sheet is provided with a plurality of rosettes, the breathing sheet is arranged on the elastic bracket, and part of the breathing sheet is clamped by the bracket of the main valve rod and the large piston; the main valve rod bracket below the petal body is provided with an expiratory valve hole, and the expiratory hole and a high-pressure airflow channel on the large piston are arranged above the petal body; the high-pressure airflow channel and the high-pressure liquid cavity are both communicated with the mixing cavity.
Furthermore, the breathing sheet and the lifting ring matched with the breathing sheet are circular or regular polygon.
Furthermore, a positioning piece is arranged on the main valve rod and matched with a gap between the rosettes on the inner side of the breathing piece to limit the breathing piece to rotate.
Furthermore, the pump body shell is fixedly connected with a spiral ring cover, the spiral ring cover is in sliding connection with the nozzle pressing head, and the spiral ring cover limits the nozzle pressing direction and the moving direction of the large piston and the main valve rod, so that the large piston and the main valve rod can only move up and down along the central shaft.
Further, the stem-bottom piston is disposed between the main valve stem and the needle and allowed to slide up and down between the main valve stem and the needle, the stem-bottom piston being in sliding friction with an inner wall of the liquid intake chamber. When the main valve rod moves downwards, the rod bottom piston moves upwards relative to the valve needle to expose the inner hole of the valve needle; when the main valve rod moves upwards, the piston at the bottom of the rod moves downwards relative to the valve needle to close the inner hole of the valve needle.
Furthermore, the high-pressure airflow passage is formed by a gap between the inner wall of the large piston and the top of the main valve rod, and the exhalation hole of the main valve rod is communicated with the high-pressure airflow passage.
Furthermore, the liquid inlet cavity one-way valve consists of a steel ball, a tapered hole and an anti-falling bayonet.
Further, the upper part of the pump body shell is provided with an air pressure balance hole, and when the large piston is located at the lowest position, the air pressure balance hole communicates the outside air with the air in the bottle.
Compared with the prior art, the utility model discloses a breathe piece structural control chamber of admitting air, its advantage lies in: the pump body is provided with the elastic breathing sheet, and the breathing is controlled by breathing one breath of the breathing sheet, so that the air inlet and the air outlet of the air inlet cavity can be completed in a better rhythm like breathing of a human body, the breathing is smooth, and the breathing pressure is high.
When the nozzle press head is reset by the spring, the rosette at the inner side of the breathing sheet is closed, and residual liquid in the mixing cavity cannot be sucked into the air inlet cavity.
Compare with the chamber structure of admitting air in the comparison file, adopt the breathing piece formula mode of admitting air, breathe piece, main valve stem and big piston and cooperate, admit air more smoothly, the pressure in chamber of admitting air is bigger, can produce bigger internal pressure, and gas-liquid mixture is even, and the foam is abundant. When the air inlet cavity inhales air, the valve body is completely propped by the pressure difference between the atmosphere and the negative pressure in the air inlet cavity, and air leakage is avoided; when the air inlet cavity is exhausted, the outer edge of the breathing sheet and the lifting ring are pressed by the pressure difference between the lower side of the large piston and the high-pressure air in the air inlet cavity and the outside, and air leakage cannot occur.
The high-pressure air sealing device avoids high-pressure air in the air inlet cavity sealed in a friction mode of the piston and the inner wall of the pump body in the prior art, and hardly generates high-pressure air leakage in the air inlet cavity. The mixing cavity can generate larger air pressure and stronger air flow, the foam is rich and uniform, and the foam state is maintained for a long time.
When the foam pump is reset, the valvular body can block the backflow of the foaming liquid, so that the foaming liquid is prevented from entering the air inlet cavity, the foam pump is pressed for many times, and the foaming effect is still good.
Drawings
Fig. 1 is an external view.
Fig. 2 is a cross-sectional view of the present invention along the direction of the nozzle.
Fig. 3 is a state diagram of the utility model during reset.
Fig. 4 is a state diagram of the present invention for depressing the pressing head of the nozzle. (the section is rotated 30 degrees around the central axis compared to fig. 3).
Fig. 5 is an enlarged view of fig. 3 at a.
Fig. 6 is an enlarged view of fig. 4 at B.
Figure 7 is a top view of a respiratory patch.
Fig. 8 is a perspective view of the upper structure of the main valve stem.
Fig. 9 is a perspective view of the lower structure of the main valve stem.
Fig. 10 is an enlarged view of fig. 2 at C.
Fig. 11 is an enlarged view of fig. 4 at D.
The device comprises a nozzle pressing head 1, a screw ring cover 2, a pump body 3, a mixing cavity 4, a main valve rod 5, a breathing sheet 6, a large piston 7, a valve needle 8, a rod bottom piston 9, a sealing plug 10, a steel ball 11, a conical hole 12, an anti-falling bayonet 13 and an air pressure balancing hole 14.
51 is an elastic bracket, 52 is an expiratory valve hole, 53 is a positioning sheet, 54 is a lifting ring, 61 is a petal-shaped body, 62 is the outer edge of a breathing sheet, 71 is an inspiratory hole, 72 is an expiratory hole, and 81 is an inner hole of a valve needle.
101 is a liquid inlet cavity, 102 is a gas inlet cavity, 103 is a mixing cavity, 104 is a high-pressure liquid cavity, and 105 is a high-pressure gas flow channel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A foam pump with breathing sheet, as shown in fig. 1-2, is composed of a nozzle pressing head, a screw ring cover and a pump body, wherein the pump body comprises a pump body shell, a liquid inlet one-way valve, a large piston, a main valve rod, a valve needle, a rod bottom piston, a spring and a fixed collar; an air inlet cavity is formed between the large piston and the pump body shell, a liquid inlet cavity is formed between the liquid inlet one-way valve and the valve needle, a high-pressure liquid cavity is formed between the main valve rod and the upper section of the large piston, a mixing cavity is arranged above the large piston, and a foaming net is arranged in the mixing cavity. The main valve rod is provided with an elastic bracket, the outer side of the elastic bracket is connected with a lifting ring, the lifting ring is contacted with the outer edge of the breathing sheet, and the elastic bracket pushes the breathing sheet against the bottom of the inner wall of the large piston; the inner side of the breathing sheet is provided with a plurality of rosettes, the breathing sheet is arranged on the elastic bracket, and part of the breathing sheet is clamped by the bracket of the main valve rod and the large piston; the main valve rod bracket below the petal body is provided with an expiratory valve hole, and the expiratory hole and a high-pressure airflow channel on the large piston are arranged above the petal body; the high-pressure airflow channel and the high-pressure liquid cavity are both communicated with the mixing cavity.
The breathing sheet and the lifting ring matched with the breathing sheet are circular or regular polygon, and the embodiment adopts a circular design.
The rosette on the exhalation sheet needs to correspond to the position of the exhalation valve hole on the main valve stem. In order to prevent the respiratory sheet from being limited to rotate and avoid the dislocation between the respiratory sheet and the respiratory valve hole, the main valve rod is provided with a positioning sheet which is matched with the gap between the rosette bodies at the inner side of the respiratory sheet, when the respiratory sheet and the lifting ring matched with the respiratory sheet are designed in a regular polygon shape, the respiratory sheet can be limited to rotate by other positioning groove modes without adopting a positioning sheet structure.
The pump body shell is fixedly connected with the spiral ring cover, the spiral ring cover is in sliding connection with the nozzle pressing head, and the spiral ring cover limits the nozzle pressing direction and the moving direction of the large piston and the main valve rod, so that the large piston and the main valve rod can only move up and down along the central shaft.
The rod bottom piston is arranged between the main valve rod and the valve needle and is allowed to slide up and down between the main valve rod and the valve needle, and the rod bottom piston is in sliding friction with the inner wall of the liquid inlet cavity. When the main valve rod moves downwards, the rod bottom piston moves upwards relative to the valve needle to expose the inner hole of the valve needle; when the main valve rod moves upwards, the piston at the bottom of the rod moves downwards relative to the valve needle to close the inner hole of the valve needle.
The gap between the inner wall of the large piston and the top of the main valve rod forms a high-pressure airflow channel, and the air blowing hole of the main valve rod is communicated with the high-pressure airflow channel.
The liquid inlet cavity one-way valve consists of a steel ball, a tapered hole and an anti-falling bayonet, and the anti-falling bayonet prevents the steel ball from falling off the tapered hole.
The upper part of the pump body shell is provided with an air pressure balance hole, and the outside air is communicated with the inside of the bottle through the air pressure balance hole.
The two ends of the mixing cavity are provided with high-density foaming nets, and a large amount of foam can be generated and enters the nozzle pressing head under the pushing of high-pressure air flow.
When the nozzle pressing head is pressed down, the lower end of the nozzle pressing head presses the large piston, the large piston drives the main valve rod to synchronously move downwards, and at the moment, the outer side of the breathing piece is fixed on the inner wall of the large piston by the lifting ring and synchronously moves downwards; the upper part of the inner side petal body is provided with an expiration hole, after the air pressure is increased, the petal body on the inner side of the expiration piece is pushed by high-pressure air in the air inlet cavity, the petal body is elastically deformed to form an expiration channel, and the high-pressure air in the air inlet cavity enters the air-liquid mixing cavity along the expiration valve hole on the main valve rod through the expiration channel and the high-pressure airflow channel, which is called as an expiration process; as the main valve rod moves downwards, the piston at the bottom of the rod moves upwards and retreats due to the friction with the liquid inlet cavity, so that a liquid inlet channel of the valve needle is reserved, and liquid in the liquid inlet cavity also enters the mixing cavity.
The foaming liquid and the high-pressure air are mixed in the mixing cavity, and a large amount of foam is generated after passing through high-density meshes on the upper side and the lower side of the mixing cavity and is sprayed out along an internal channel of the nozzle pressing head.
When the large piston reaches the maximum downward stroke, the piston wall of the large piston descends, the air pressure balance hole in the pump body shell is opened, and the air in the bottle is communicated with the atmosphere to realize air exchange.
When the nozzle pressing head is released, the main valve rod drives the large piston to reset and move upwards under the upward thrust of the spring, at the moment, the valve body on the inner side of the breathing sheet is propped by the main valve rod, and meanwhile, because the negative pressure exists in the air inlet cavity and the pressure difference exists between the air inlet cavity and the outside air, the breathing valve hole is covered by the valve body, and the breathing channel is completely closed; because the air inlet cavity is internally provided with negative pressure, the external air pressure and the pressure difference in the air inlet cavity press the outer edge of the breathing sheet to drive the lifting ring to deform downwards, the elastic bracket deforms, an air suction channel is formed between the outer edge of the breathing sheet and the large piston, and the air inlet cavity is filled with air, so that the process is called as an air suction process.
In the air suction process, the valve needle moves upwards along with the main valve rod, the piston at the bottom of the rod cuts off an inner channel of the valve needle, the space of the liquid inlet cavity is increased to generate negative pressure, and foaming liquid in the bottle pushes away steel balls along the suction pipe and enters the liquid inlet cavity along the one-way valve to be stored.
In the air suction process, the main valve rod moves upwards to push the rosette at the inner side of the breathing sheet to seal the breathing hole, so that the foaming liquid can be effectively prevented from being sucked into the air inlet cavity.
After the air suction is finished, the large piston is reset to block the air pressure balancing hole, so that the foaming liquid in the bottle is prevented from leaking.
Claims (8)
1. A foam pump with a breathing sheet comprises a nozzle pressing head, a screw ring cover and a pump body, wherein the pump body comprises a pump body shell, a liquid inlet one-way valve, a large piston, a main valve rod, a valve needle, a rod bottom piston, a spring and a fixing clamp ring; an air inlet cavity is formed between the large piston and the pump body shell, a liquid inlet cavity is formed between the liquid inlet one-way valve and the valve needle, a high-pressure liquid cavity is formed between the main valve rod and the upper section of the large piston, a mixing cavity is arranged above the large piston, and the mixing cavity is provided with a foaming net, and the high-pressure liquid mixing pump is characterized in that: the main valve rod is provided with an elastic bracket, the outer side of the elastic bracket is connected with a lifting ring, the lifting ring is contacted with the outer edge of the breathing sheet, and the elastic bracket pushes the breathing sheet against the bottom of the inner wall of the large piston; the inner side of the breathing sheet is provided with a plurality of rosettes, the breathing sheet is arranged on the elastic bracket, and part of the breathing sheet is clamped by the bracket of the main valve rod and the large piston; the main valve rod bracket below the petal body is provided with an expiratory valve hole, and the expiratory hole and a high-pressure airflow channel on the large piston are arranged above the petal body; the high-pressure airflow channel and the high-pressure liquid cavity are both communicated with the mixing cavity.
2. The foam pump with a breath sheet of claim 1, wherein: the breathing sheet and the lifting ring matched with the breathing sheet are circular or regular polygon.
3. The foam pump with a breath sheet of claim 1, wherein: the main valve rod is provided with a positioning sheet which is matched with a gap between the rosettes at the inner side of the breathing sheet to limit the breathing sheet to rotate.
4. The foam pump with a breath sheet of claim 1, wherein: the pump body shell is fixedly connected with the spiral ring cover, the spiral ring cover is in sliding connection with the nozzle pressing head, and the spiral ring cover limits the nozzle pressing direction and the moving direction of the large piston and the main valve rod, so that the main valve rod can only move up and down along the central shaft.
5. The foam pump with a breath sheet of claim 1, wherein: the rod bottom piston is arranged between the main valve rod and the valve needle and is allowed to slide up and down between the main valve rod and the valve needle, and the rod bottom piston and the inner wall of the liquid inlet cavity are in sliding friction; when the main valve rod moves downwards, the piston at the bottom of the rod moves upwards to expose the inner hole of the valve needle; when the main valve rod moves upwards, the piston at the bottom of the rod seals the inner hole of the valve needle.
6. The foam pump with a breath sheet of claim 1, wherein: the high-pressure airflow channel is formed by a gap between the inner wall of the large piston and the top of the main valve rod, and the exhalation hole of the main valve rod is communicated with the high-pressure airflow channel.
7. The foam pump with a breath sheet of claim 1, wherein: the liquid inlet cavity one-way valve consists of a steel ball, a tapered hole and an anti-falling bayonet.
8. The foam pump with a breath sheet of claim 1, wherein: and the upper part of the pump body shell is provided with an air pressure balance hole, and when the large piston is positioned at the lowest position, the air pressure balance hole communicates the outside air with the air in the bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146914.3U CN210311612U (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921146914.3U CN210311612U (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210311612U true CN210311612U (en) | 2020-04-14 |
Family
ID=70124735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921146914.3U Expired - Fee Related CN210311612U (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210311612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329653A (en) * | 2019-07-22 | 2019-10-15 | 沈利庆 | Foam pump with breathing piece |
-
2019
- 2019-07-22 CN CN201921146914.3U patent/CN210311612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110329653A (en) * | 2019-07-22 | 2019-10-15 | 沈利庆 | Foam pump with breathing piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210722 |