CN210783969U - Connecting mechanism of quick-heating water drinking device - Google Patents
Connecting mechanism of quick-heating water drinking device Download PDFInfo
- Publication number
- CN210783969U CN210783969U CN201921569097.2U CN201921569097U CN210783969U CN 210783969 U CN210783969 U CN 210783969U CN 201921569097 U CN201921569097 U CN 201921569097U CN 210783969 U CN210783969 U CN 210783969U
- Authority
- CN
- China
- Prior art keywords
- annular
- closing membrane
- way opening
- water
- opening
- 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
Images
Landscapes
- Devices For Dispensing Beverages (AREA)
Abstract
A connecting mechanism of a quick-heating drinking device comprises a base with a water inlet and a water outlet, wherein a gas compensation structure communicated with the water inlet is arranged on the base; the gas compensation structure comprises an air inlet pipe arranged on the base, a first one-way opening and closing membrane arranged at the input end of the air inlet pipe and used for opening and closing the air inlet pipe, and a pressing cover arranged at the input end of the air inlet pipe, wherein the first one-way opening and closing membrane is arranged between the air inlet pipe and the pressing cover, and an air hole opposite to the first one-way opening and closing membrane is formed in the pressing cover. The utility model discloses gaseous compensation simple structure, the manufacturing and the installation of the gaseous compensation structure of being convenient for.
Description
Technical Field
The utility model relates to a connecting mechanism of a quick-heating water drinking device.
Background
Chinese patent document No. CN108552955A discloses an instant heating type water dispenser, which is characterized in that: the water pump, the heating body, the control circuit board, the water outlet nozzle and the water bottle seat are installed in the shell, the water bottle seat, the water pump, the heating body and the water outlet nozzle are communicated through a water path, the control circuit board controls water supply of the water pump and heating of the heating body, a one-way air inlet device is arranged on the side edge of a water outlet of the water bottle seat and comprises an air inlet channel, an air inlet pipe, a sealing cover, a spring and a sealing steel ball, one end of the sealing cover is provided with a positioning hole which is sleeved on the air inlet pipe, the other end of the sealing cover is a micropore, the spring and the sealing steel ball are sleeved in the air inlet pipe, the outer end of the spring is abutted against.
The water bottle seat is used as a connecting mechanism between the water dispenser and a water bottle (a container loaded with water), wherein the one-way air inlet device on the water bottle seat has a complex structure and larger parts, is not beneficial to the manufacture and installation of the one-way air inlet device, and has certain limitation.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a coupling mechanism of fast hot watering device, its gas compensation simple structure, the manufacturing and the installation of the gas compensation structure of being convenient for.
The purpose of the utility model is realized like this:
a connecting mechanism of a quick-heating drinking device comprises a base with a water inlet and a water outlet, wherein a gas compensation structure communicated with the water inlet is arranged on the base;
the gas compensation structure comprises an air inlet pipe arranged on the base, a first one-way opening and closing membrane arranged at the input end of the air inlet pipe and used for opening and closing the air inlet pipe, and a pressing cover arranged at the input end of the air inlet pipe, wherein the first one-way opening and closing membrane is arranged between the air inlet pipe and the pressing cover, and an air hole opposite to the first one-way opening and closing membrane is formed in the pressing cover.
The compressing cover is provided with a first support which abuts against the outer end face of the first one-way opening and closing membrane and is used for limiting the one-way conduction of the first one-way opening and closing membrane, and the first support extends into the air inlet pipe.
One end of the first support frame is positioned at the center of the vent hole, and a plurality of connecting plates connected with the inner side surface of the vent hole are uniformly distributed on the side part of the first support frame along the circumferential direction.
The outer side surface of the air inlet pipe is provided with an annular groove, the inner side surface of the pressing cover is provided with a first annular raised line corresponding to the annular groove, and the first annular raised line is buckled on the annular groove.
A second one-way opening and closing membrane for opening and closing the water outlet is arranged in the water outlet;
the first one-way opening and closing membrane and the second one-way opening and closing membrane are provided with opening and closing seams;
the first unidirectional opening and closing membrane and the second unidirectional opening and closing membrane are both concave.
The base comprises a first column part and a second column part connected to the first column part, and the diameter of the second column part is larger than that of the first column part;
a water passage which runs through the upper part and the lower part of the first column part is arranged in the first column part, a water inlet cavity which runs through the upper part of the second column part is arranged in the second column part, a water inlet is positioned at the upper part of the water inlet cavity, and a water outlet is positioned at the lower part of the water passage;
the air inlet pipe is arranged below the second column part and connected to the outer side of the first column part;
the outer side surface of the first column part is provided with a connecting pipe, one end of the connecting pipe is communicated with the air inlet pipe, and the other end of the connecting pipe is communicated with the water inlet cavity of the water inlet cavity.
The edges of the first unidirectional opening and closing membrane and the second unidirectional opening and closing membrane are provided with annular positioning platforms and annular mounting grooves formed in the annular positioning platforms.
The input end of the air inlet pipe is provided with a groove, the first one-way opening and closing membrane is arranged in the groove, the bottom surface of the groove is provided with a first annular positioning plate, and the first annular positioning plate extends into an annular mounting groove of the first one-way opening and closing membrane annular positioning table;
the edge of the bottom of the vent hole is provided with an annular pressing plate, the annular pressing plate is arranged on an annular positioning table of the first one-way opening and closing membrane, and the first annular positioning plate and the annular pressing plate are respectively positioned on two sides of the first one-way opening and closing membrane.
An annular limiting table is arranged on the inner side surface of the water passage, a limiting seat is arranged on the annular limiting table, the second one-way opening and closing membrane is located between the annular limiting table and the limiting seat, and a water through hole opposite to the second one-way opening and closing membrane is arranged in the limiting seat.
A second support frame which is abutted against the upper surface of the second one-way opening and closing membrane is arranged in the water through hole;
an annular pressing table connected to the lower part of the second support frame is arranged on the inner side surface of the water through hole, and the annular pressing table is arranged on an annular positioning table of the second one-way opening and closing membrane;
a second annular positioning plate extending downwards is arranged on the bottom surface of the annular pressing table and extends into an annular mounting groove of the second one-way opening and closing membrane annular positioning table;
an annular top backup plate is arranged on the annular limiting table and arranged at the bottom of the annular positioning table of the second one-way opening and closing membrane;
and a second annular convex strip is arranged on the inner side surface of the water passage, and the limiting seat is positioned at the lower part of the second annular convex strip.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a cross-sectional view of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of portion B of fig. 1.
Fig. 4 is an exploded view of an embodiment of the present invention.
Fig. 5 is a schematic structural view of a pressing cover according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a spacing seat according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-6, the connecting mechanism of the instant heating drinking device comprises a base 4 having a water inlet 1 and a water outlet 2, wherein a gas compensation structure communicated with the water inlet 1 is arranged on the base 4;
the gas compensation structure comprises an air inlet pipe 3 arranged on a base 4, a first one-way opening and closing membrane 5 arranged at the input end of the air inlet pipe 3 and used for opening and closing the air inlet pipe 3, and a pressing cover 6 arranged at the input end of the air inlet pipe 3, wherein the first one-way opening and closing membrane 5 is arranged between the air inlet pipe 3 and the pressing cover 6, the first one-way opening and closing membrane 5 is positioned, a vent hole 7 opposite to the first one-way opening and closing membrane 5 is formed in the pressing cover 6, and the vent hole 7 of the pressing cover 6 is communicated with the outside.
The connecting mechanism is applied to the water dispenser. Specifically, the base 4 is inserted on a corresponding mounting interface of the water dispenser, the water outlet 2 of the base 4 is connected with a water inlet pipeline of the water dispenser, the base 4 is provided with barreled water 33 or other water storage containers communicated with the water inlet 1, a water suction pump is arranged on the water inlet pipeline of the water dispenser, when the water suction pump operates, water in the barreled water 33 is sucked into the water dispenser, after water in the barreled water 33 is output, the internal air pressure of the barreled water 33 is reduced, external atmospheric pressure pushes the first one-way opening and closing membrane 5 to be opened towards the inner side, and external air can enter the barreled water 33.
The first one-way opening and closing membrane 5 can only realize one-way conduction that gas enters the gas inlet pipe 3 from the outside of the connecting mechanism, and ensures that water in the connecting mechanism cannot leak to the outside of the connecting mechanism from the first one-way opening and closing membrane 5.
The gas compensation structure is simple, and the manufacturing and the installation of the gas compensation structure are convenient.
Furthermore, a first support frame 8 which is abutted against the outer end face of the first one-way opening and closing membrane 5 and used for limiting the one-way conduction of the first one-way opening and closing membrane 5 is arranged on the pressing cover 6, and the first support frame 8 extends into the air inlet pipe 3.
The arrangement of the first support frame 8 enables the first one-way opening and closing membrane 5 not to be opened towards the outer side deformation of the air inlet pipe 3, and the first one-way opening and closing membrane 5 only can be opened towards the inner side deformation of the air inlet pipe 3, so that the one-way conduction function of the first one-way opening and closing membrane 5 is realized.
The first support frame 8 comprises a plurality of first sub-boards which are uniformly distributed at intervals along the circumferential direction, one ends of the plurality of first sub-boards are connected, and the other ends of the plurality of first sub-boards radially extend. In this embodiment, the number of the first sub-boards is three.
Furthermore, one end of the first support frame 8 is located at the center of the vent hole 7, and a plurality of connecting plates 9 connected with the inner side surface of the vent hole 7 are uniformly distributed on the side part of the first support frame 8 along the circumferential direction. Positioning of the first support frame 8 is achieved.
Furthermore, an annular groove 10 is formed in the outer side face of the air inlet pipe 3, a first annular protruding strip 11 is arranged on the inner side face of the pressing cover 6 corresponding to the annular groove 10, the first annular protruding strip 11 is buckled on the annular groove 10, and the air inlet pipe 3 and the pressing cover 6 are installed.
Further, a second one-way opening and closing membrane 12 for opening and closing the water outlet 2 is arranged in the water outlet 2;
the second one-way opening and closing membrane 12 can only realize one-way conduction of liquid output from the inside of the connecting mechanism to the outside of the water outlet 2 (specifically, a water inlet pipeline of a water dispenser), and ensures that water and gas outside the connecting mechanism cannot flow back to the inside of the connecting mechanism through the second one-way opening and closing membrane 12.
The first one-way opening and closing membrane 5 and the second one-way opening and closing membrane 12 are both provided with an opening and closing seam 13;
the opening and closing seam 13 comprises a plurality of sub-seams which are uniformly distributed at intervals along the circumferential direction, one ends of the plurality of sub-seams are connected, and the other ends of the plurality of sub-seams radially extend.
In this embodiment, the opening and closing slit 13 of the first unidirectional opening and closing membrane 5 has three sub slits, and the opening and closing slit 13 of the second unidirectional opening and closing membrane 12 has four sub slits, that is, the opening and closing slit 13 of the unidirectional opening and closing membrane 12 is in a cross shape.
The first unidirectional opening and closing membrane 5 and the second unidirectional opening and closing membrane 12 are both concave.
The first one-way opening and closing membrane 5 and the second one-way opening and closing membrane 12 are made of silica gel.
Further, the base 4 comprises a first column part 14 and a second column part 15 connected to the first column part 14, and the diameter of the second column part 15 is larger than that of the first column part 14;
a water passage 16 penetrating through the upper part and the lower part of the first column part 14 is arranged in the first column part 14, a water inlet cavity 17 penetrating through the upper part of the second column part 15 is arranged in the second column part 15, a water inlet 1 is positioned at the upper part of the water inlet cavity 17, and a water outlet 2 is positioned at the lower part of the water passage 16;
the barreled water 33 is inserted in the water inlet cavity 17, and the barreled water 33 is supported on the bottom surface of the water inlet cavity 17.
The inner wall of the water inlet cavity 17 is annularly provided with mounting threads, and the threads on the head of the screw cap type barreled water 33 are matched with the mounting threads, so that the barreled water 33 and the base 4 are positioned and mounted.
The air inlet pipe 3 is arranged below the second column part 15 and is connected to the outer side of the first column part 14; the air intake pipe 3 and the water passage 16 are partitioned from each other by a side wall of the first pillar portion 14.
A connecting pipe 18 is arranged on the outer side surface of the first column part 14, one end of the connecting pipe 18 is communicated with the air inlet pipe 3, and the other end of the connecting pipe 18 is communicated with a water inlet cavity 17 of the water inlet cavity 17.
A seal ring 32 is fitted over the outer surface of the first column portion 14.
Further, the edges of the first one-way opening and closing membrane 5 and the second one-way opening and closing membrane 12 are both provided with an annular positioning table 19 and an annular mounting groove 20 arranged on the annular positioning table 19.
The annular mounting groove 20 is connected with the edges of the corresponding first unidirectional opening and closing membrane 5 and the second unidirectional opening and closing membrane 12.
Furthermore, a groove 21 is formed in the input end of the air inlet pipe 3, the first one-way opening and closing membrane 5 is arranged in the groove 21, a first annular positioning plate 22 is arranged on the bottom surface of the groove 21, and the first annular positioning plate 22 extends into an annular mounting groove 20 of an annular positioning table 19 of the first one-way opening and closing membrane 5;
the edge of the bottom of the vent hole 7 is provided with an annular pressing plate 23, the annular pressing plate 23 is arranged on an annular positioning table 19 of the first one-way opening and closing membrane 5, and the first annular positioning plate 22 and the annular pressing plate 23 are respectively positioned on two sides of the first one-way opening and closing membrane 5, so that the positioning and installation of the first one-way opening and closing membrane 5 are realized.
Furthermore, an annular limiting table 24 is arranged on the inner side surface of the water passage 16, a limiting seat 25 is arranged on the annular limiting table 24, the second one-way opening and closing membrane 12 is located between the annular limiting table 24 and the limiting seat 25, a water through hole 26 opposite to the second one-way opening and closing membrane 12 is arranged in the limiting seat 25, and the water through hole 26 penetrates through the upper portion and the lower portion of the limiting seat 25.
The limiting seat 25 is arranged in the water passage 16, and the second one-way opening and closing membrane 12 is embedded in the limiting seat 25.
When the water pump operates, negative pressure is formed below the second one-way opening and closing membrane 12, so that the second one-way opening and closing membrane 12 deforms downwards and is opened.
Further, a second support frame 27 which is abutted against the upper surface of the second one-way opening and closing membrane 12 is arranged in the limber hole 26;
the second support frame 27 is arranged to prevent the second one-way opening and closing membrane 12 from being deformed and opened towards the inner side of the water passage 16, and the second one-way opening and closing membrane 12 can only be deformed and opened towards the outer side of the water passage 16 (the water outlet 2), so that the one-way conduction function of the second one-way opening and closing membrane 12 is realized.
The first support frame 8 comprises a plurality of second sub-boards which are uniformly distributed at intervals along the circumferential direction, one ends of the plurality of second sub-boards are connected, and the other ends of the plurality of second sub-boards radially extend. In this embodiment, the number of the second sub-boards is four, that is, the first support frame 8 is cross-shaped.
The outer side of the second support frame 27 is connected to the inner wall of the water passage hole 26.
An annular pressing table 28 connected to the lower part of the second supporting frame 27 is arranged on the inner side surface of the water through hole 26, and the annular pressing table 28 is arranged on an annular positioning table 19 of the second one-way opening and closing membrane 12;
a second annular positioning plate 29 extending downwards is arranged on the bottom surface of the annular pressing table 28, and the second annular positioning plate 29 extends into the annular mounting groove 20 of the annular positioning table 19 of the second one-way opening and closing membrane 12;
an annular top backup plate 30 is arranged on the annular limiting table 24, and the annular top backup plate 30 is arranged at the bottom of the annular positioning table 19 of the second one-way opening and closing membrane 12; and positioning and mounting of the second one-way opening and closing membrane 12 are realized.
The inner side surface of the water passage 16 is provided with a second annular convex strip 31, the limiting seat 25 is positioned at the lower part of the second annular convex strip 31, and the positioning of the limiting seat 25 in the vertical direction is realized by the arrangement of the second annular convex strip 31.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and not for the purpose of limiting the same, and the appended claims are intended to cover all such modifications, equivalents, and alternatives falling within the scope of the present invention.
Claims (10)
1. A connecting mechanism of a quick-heating water drinking device comprises a base (4) with a water inlet (1) and a water outlet (2), and is characterized in that a gas compensation structure communicated with the water inlet (1) is arranged on the base (4);
the gas compensation structure comprises an air inlet pipe (3) arranged on a base (4), a first one-way opening and closing membrane (5) arranged at the input end of the air inlet pipe (3) and used for opening and closing the air inlet pipe (3), and a pressing cover (6) arranged at the input end of the air inlet pipe (3), wherein the first one-way opening and closing membrane (5) is arranged between the air inlet pipe (3) and the pressing cover (6), and a vent hole (7) opposite to the first one-way opening and closing membrane (5) is formed in the pressing cover (6).
2. The connecting mechanism of the quick-heating water drinking device according to claim 1, wherein the pressing cover (6) is provided with a first supporting frame (8) which is abutted against the outer end face of the first one-way opening and closing membrane (5) and used for limiting the one-way conduction of the first one-way opening and closing membrane (5), and the first supporting frame (8) extends into the air inlet pipe (3).
3. The connecting mechanism of the quick-heating water drinking device according to claim 2, wherein one end of the first supporting frame (8) is located at the center of the vent hole (7), and a plurality of connecting plates (9) connected with the inner side surface of the vent hole (7) are uniformly distributed on the side part of the first supporting frame (8) along the circumferential direction.
4. The connecting mechanism of the quick-heating water dispenser according to claim 2, wherein the outer side of the air inlet pipe (3) is provided with an annular groove (10), the inner side of the pressing cover (6) is provided with a first annular convex strip (11) corresponding to the annular groove (10), and the first annular convex strip (11) is buckled on the annular groove (10).
5. The connecting mechanism of the quick-heating water drinking device according to the claim 1, characterized in that a second one-way opening and closing membrane (12) for opening and closing the water outlet (2) is arranged in the water outlet (2);
the first one-way opening and closing membrane (5) and the second one-way opening and closing membrane (12) are both provided with an opening and closing seam (13);
the first unidirectional opening and closing membrane (5) and the second unidirectional opening and closing membrane (12) are both concave.
6. A connection means for a quick-heating drinking device according to claim 5, characterized in that the base (4) comprises a first pillar part (14) and a second pillar part (15) connected to the first pillar part (14), the diameter of the second pillar part (15) being larger than the diameter of the first pillar part (14);
a water passage (16) which runs through the upper part and the lower part of the first column part (14) is arranged in the first column part, a water inlet cavity (17) which runs through the upper part of the second column part (15) is arranged in the second column part, the water inlet (1) is positioned at the upper part of the water inlet cavity (17), and the water outlet (2) is positioned at the lower part of the water passage (16);
the air inlet pipe (3) is arranged below the second column part (15) and is connected to the outer side of the first column part (14);
the outer side surface of the first column part (14) is provided with a connecting pipe (18), one end of the connecting pipe (18) is communicated with the air inlet pipe (3), and the other end of the connecting pipe (18) is communicated with the water inlet cavity (17) of the water inlet cavity (17).
7. The connecting mechanism of the quick-heating water dispenser according to claim 6, wherein the edges of the first one-way opening and closing membrane (5) and the second one-way opening and closing membrane (12) are provided with an annular positioning table (19) and an annular mounting groove (20) arranged on the annular positioning table (19).
8. The connecting mechanism of the quick-heating water dispenser according to claim 7, wherein the input end of the air inlet pipe (3) is provided with a groove (21), the first one-way opening and closing membrane (5) is arranged in the groove (21), the bottom surface of the groove (21) is provided with a first annular positioning plate (22), and the first annular positioning plate (22) extends into the annular mounting groove (20) of the annular positioning table (19) of the first one-way opening and closing membrane (5);
the edge of the bottom of the vent hole (7) is provided with an annular pressing plate (23), the annular pressing plate (23) is arranged on an annular positioning table (19) of the first one-way opening and closing membrane (5), and the first annular positioning plate (22) and the annular pressing plate (23) are respectively positioned on two sides of the first one-way opening and closing membrane (5).
9. The connecting mechanism of the quick-heating water dispenser according to claim 7, wherein the inner side surface of the water passage (16) is provided with an annular limiting platform (24), the annular limiting platform (24) is provided with a limiting seat (25), the second one-way opening and closing membrane (12) is positioned between the annular limiting platform (24) and the limiting seat (25), and the limiting seat (25) is internally provided with a water through hole (26) opposite to the second one-way opening and closing membrane (12).
10. The connecting mechanism of the quick-heating water dispenser according to claim 9, wherein a second supporting frame (27) which is abutted against the upper surface of the second one-way opening and closing membrane (12) is arranged in the water through hole (26);
an annular pressing table (28) connected to the lower part of the second support frame (27) is arranged on the inner side surface of the water through hole (26), and the annular pressing table (28) is arranged on an annular positioning table (19) of the second one-way opening and closing membrane (12);
a second annular positioning plate (29) extending downwards is arranged on the bottom surface of the annular pressing table (28), and the second annular positioning plate (29) extends into an annular mounting groove (20) of an annular positioning table (19) of the second one-way opening and closing membrane (12);
an annular top backup plate (30) is arranged on the annular limiting table (24), and the annular top backup plate (30) is arranged at the bottom of an annular positioning table (19) of the second one-way opening and closing membrane (12);
and a second annular convex strip (31) is arranged on the inner side surface of the water passage (16), and the limiting seat (25) is positioned at the lower part of the second annular convex strip (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569097.2U CN210783969U (en) | 2019-09-19 | 2019-09-19 | Connecting mechanism of quick-heating water drinking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569097.2U CN210783969U (en) | 2019-09-19 | 2019-09-19 | Connecting mechanism of quick-heating water drinking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210783969U true CN210783969U (en) | 2020-06-19 |
Family
ID=71234896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921569097.2U Expired - Fee Related CN210783969U (en) | 2019-09-19 | 2019-09-19 | Connecting mechanism of quick-heating water drinking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210783969U (en) |
-
2019
- 2019-09-19 CN CN201921569097.2U patent/CN210783969U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210783969U (en) | Connecting mechanism of quick-heating water drinking device | |
| WO2019144307A1 (en) | Elastic bladder pump | |
| WO2022052312A1 (en) | Environmentally friendly foam pump | |
| CN104089056B (en) | A kind of Nonrepetitive filling valve and its implementation | |
| US8453884B2 (en) | Diaphragm pump actuated liquid dispensing apparatus having dome shaped deformable membrane | |
| CN217911266U (en) | Glue dispensing device | |
| CN214567479U (en) | Lotion pump without spring | |
| CN203682139U (en) | Emulsion outlet spray head | |
| CN211176304U (en) | Container lid with two-way automatic decompression function | |
| CN212186192U (en) | Bucket connecting device of water dispenser | |
| US20230211365A1 (en) | Food pump with safe outlet valve and outer mounted spring | |
| JP5820690B2 (en) | Discharge pump | |
| JP5311475B2 (en) | Liquid discharge pump | |
| CN107616725B (en) | Cup cover assembly and cup | |
| CN203963148U (en) | A kind of novel Nonrepetitive filling valve | |
| JP3026896U (en) | Cap type suction device for liquid container | |
| CN210106121U (en) | Two-way inflating pump piston ring structure | |
| CN220703232U (en) | Wine barrel | |
| CN215664878U (en) | Pump head with liquid shortage detection function | |
| CN219447843U (en) | Quick assembly's external spring pump | |
| CN116241687A (en) | Anti-backflow structure and gas meter | |
| CN210585500U (en) | Spraying pump with water sealing device | |
| CN211795937U (en) | Mineral water bottle crossover sub | |
| CN217852459U (en) | Air inlet structure | |
| CN110145454B (en) | Two-way inflating pump piston ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20210919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |