CN103015509B - Pneumatic button for automatic air supplement - Google Patents
Pneumatic button for automatic air supplement Download PDFInfo
- Publication number
- CN103015509B CN103015509B CN201210578157.3A CN201210578157A CN103015509B CN 103015509 B CN103015509 B CN 103015509B CN 201210578157 A CN201210578157 A CN 201210578157A CN 103015509 B CN103015509 B CN 103015509B
- Authority
- CN
- China
- Prior art keywords
- button
- air supply
- supply passage
- piston piece
- air
- 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.)
- Active
Links
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a pneumatic button for automatic air supplement. The pneumatic button comprises a pressing device, wherein the pressing device is formed by pressing a spring between a button seat and a key; an air inflation device is connected below the button seat, and comprises an air cylinder of which the bottom is provided with an exhaust orifice, and a piston piece which is hermetically matched with the inner wall of the air cylinder; the piston piece is provided with an air supplementing channel which is communicated with the air cylinder; the key and the piston piece are in interference differential fit with each other; a sealing element is arranged in a differential gap between the key and the air supplementing channel; the sealing element is used for enclosing the air supplementing channel before the key is pressed down and the piston piece is driven, and further used for opening the air supplementing channel after the key and the piston piece are loosened and before resetting; the air supplementing channel is closed before the key is pressed down, and then the piston piece is pressed downwardly for exhausting air out of the air cylinder; and contrarily, the air supplementing channel is opened before the key rises, and the piston piece is driven to rise, so that air is supplemented into the air cylinder through the air supplementing channel. The air inflation device adopted in the structure of the pneumatic button is simple in structure, and has long service life; and the air supplementing channel is opened and closed reliably, and air is supplemented to the air cylinder reliably in time.
Description
Technical field
The present invention relates to the Pneumatic button of a kind of automatic inflating device of sensitive reliable, the long service life of the gas control starting drive, particularly tonifying Qi of sanitary bath equipment.
Background technology
The gas control starting drive of existing sanitary bath equipment adopts air bag compression to produce air pressure substantially, then by flexible pipe, air pressure transmission is passed to the pneumatic means of controlling sanitary bath equipment, start sanitary bath equipment, because gas control starting drive all can be installed in any space, therefore its application is comparatively extensive, but gas control starting drive also has its weak point, air bag connects pneumatic means by flexible pipe, pneumatic means can oppositely be calmed the anger to gas control starting drive under external force, therefore unavoidably have a little leakage and cause laboured breathing, the air pressure of transmission is declined, therefore need all must supplement air in order to using next time to inside air bag after every task, to solve its integrity problem, but in the middle of the application of reality, air bag is in use frequently inflated and is compressed, easily breakage causes application life shorter, thereby gas control starting drive was lost efficacy, such gas control starting drive has the disclosed draining valve pneumatic actuating device of European patent (EP1719846A2), the air control unit of the disclosed toilet drain valve of European patent (EP2525004A1), also has the disclosed a kind of Pneumatic button with gas supplementary structure of Chinese utility model patent (CN201214816Y).
Summary of the invention
For solving the existing problem of gas control starting drive of above-mentioned sanitary bath equipment, it is sensitive reliable that the present invention is intended to propose tonifying Qi, the Pneumatic button of a kind of automatic inflating device of long service life, adopt the air-breathing and exhaust of reducible press device control cylinder piston, on piston piece, offer the air supply passage of a connection cylinder, utilize the progressive error of press device and piston piece to open or close air supply passage, even if seal air supply passage before the pressing keys driven plunger part of press device, and unclamp the button piston piece front opening air supply passage that starts to reset, make air supply passage there is the function to the unidirectional tonifying Qi of cylinder.
For reaching above-mentioned purpose, the invention provides a kind of Pneumatic button of automatic inflating device, comprise a press device of pressing spring between the two to form by button seat, button and top, it is characterized in that: button seat below connects an aerating device, described aerating device comprises that a bottom is provided with the cylinder of steam vent, one and the piston piece that is sealed and matched of cylinder inner wall, described piston piece is provided with the air supply passage of a connection cylinder, described button coordinates with piston piece interval is differential, in described button and the differential gap of air supply passage, a seal is set; Described seal is for sealing air supply passage before pressing keys driven plunger part and unclamping the button piston piece front opening air supply passage that starts to reset.
In the middle of described button bottom, be provided with one with the differential shank being connected in piston piece interval, shank coordinates with piston piece dogging, air supply passage bottom forms described differential gap with shank bottom, pass through differential gap, make button first press down a differential movement, seal in differential gap top is pressed between button and piston piece, first seal air supply passage, then button continues to press down and just can drive the piston piece of sealing to press down cylinder exhaust; And after cylinder exhaust, unclamp button, the button differential movement that first rises under spring force, the sealing of first depressurization part to differential gap gap and open air supply passage, then spring continuation jacking button just can drive piston piece to rise from cylinder, air enters cylinder from air supply passage, and cylinder is supplemented to air.
On the sidewall of described piston piece bottom, be arranged with two side openings that are communicated with air supply passages, the bottom sidewall of button bottom shank be arranged with two with the differential outer barb being connected of side opening; Button is pressed a differential movement, outer barb is after descending this differential movement of side opening, button can press down piston piece downward movement in cylinder, cylinder exhaust is complete, the button differential movement that first rises under spring top lift, make outer barb first rise this differential movement and side opening dogging, button can be with dynamic pressure piston piece upstroke in cylinder in follow-up rising.
Described seal is a rubber parts, and this rubber parts is fixed on the bottom of described button bottom shank, and rubber parts moves downward presses while touching air supply passage bottom opening, and air supply passage bottom opening is closed.
The bottom of described button bottom shank is provided with pressure surface, and described seal is a rubber ring, and rubber ring is fixed on the air supply passage bottom opening on piston piece, and when button pressed makes shank pressure surface contact in differential gap rubber ring, air supply passage bottom opening is closed.
Described seal is rubber ring, described piston piece is a guide pipe, air supply passage is guide pipe tube chamber, this rubber ring is fixed on guide pipe and pushes up along upper, between edge, guide pipe top and button, form described differential gap, pressing keys is touched rubber ring and the button bottom surface pressure in differential gap, and air supply passage open top is closed.
Described seal is rubber ring, described piston piece is a guide pipe, air supply passage is guide pipe tube chamber, this rubber ring is fixed on button bottom surface, between edge, guide pipe top and button, form described differential gap, pressing keys is pressed the rubber ring in differential gap and is touched edge, guide pipe top, and air supply passage open top is closed.
Described piston piece bottom sidewall is provided with an annular groove, fixes a joint ring being sealed and matched with cylinder inner wall in described annular groove, and piston piece edge and cylinder inner wall are sealed.
The invention has the beneficial effects as follows: coordinate with the differential of piston piece by button, while making button pressed, first close air supply passage packed-piston part, and then the piston piece of lower means of press seals presses down cylinder exhaust, otherwise, when button rises, first open air supply passage, and then drive piston piece up in cylinder, make air fill into cylinder by air supply passage, structure employing aerating device of the present invention is simple in structure, long service life, and air supply passage is opened and close reliable, reliable in time to cylinder tonifying Qi.
Brief description of the drawings
Fig. 1 is embodiment mono-three-dimensional assembly structure decomposing schematic representation of the present invention.
Fig. 2 is that the structure of embodiment mono-air supply passage original state of the present invention is analysed and observe.
Fig. 3 is the structure sectional view of embodiment mono-air supply passage of the present invention while closing.
Fig. 4 is under embodiment mono-air supply passage closed condition of the present invention, the structure sectional view of cylinder exhaust.
Fig. 5 is under embodiment mono-air supply passage closed condition of the present invention, the complete structure sectional view of cylinder exhaust.
Fig. 6 is that embodiment mono-the present invention resets and opens the structure sectional view of air supply passage to cylinder tonifying Qi while startup.
Fig. 7 is that the structure of embodiment bis-air supply passage original state of the present invention is analysed and observe.
Fig. 8 is that the structure of embodiment tri-air supply passage original state of the present invention is analysed and observe.
In figure:
10. aerating device; 11. cylinders; 111. steam vent; 12. piston pieces; 120. guide pipe; 121. annular groove; 122. side opening; 13. joint rings;
20. press device; 21. button seats; 22. buttons; 221. decoration panel; 23. springs;
30. air supply passage; 31. air supply passage open tops; 32. air supply passage bottom openings;
40. shank; 41. outer barbs; 42. installing holes; 43. pressure surfaces;
50. seal; 51. rubber parts; 52. rubber rings; 53. rubber rings;
60. differential gap;
70. flexible pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing and each embodiment, the present invention is further described.
embodiment mono-(seal adopts rubber parts, and shank bottom rubber parts is used for the differential air supply passage bottom opening of opening or close the border).
As
fig. 1with
fig. 2the Pneumatic button of shown a kind of automatic inflating device, comprises a press device 20 of pressing spring 23 between the two to form by 21 button seats, button 22 and top, the decoration panel 221 that button 22 end face buckles connect, button seat 21 belows connect an aerating device 10, described aerating device 10 is by comprising that a bottom is provided with the cylinder 11 of steam vent 111, one tubulose or the shaft-like piston piece 12 coordinating with cylinder 11 inner wall sealings, piston piece 12 bottom sidewalls are provided with an annular groove 121, in annular groove 121, fix a joint ring 13 coordinating with cylinder 11 inner wall sealings, piston piece 12 is provided with the air supply passage 30 of a connection cylinder 11, piston piece 12 top is along forming the gap of stepping down with button 22, on piston piece 12 bottom sidewalls, be arranged with two side openings 122 and be communicated with air supply passage 30, button 22 be provided with in the middle of bottom surfaces one with the differential shank being connected 40 in piston piece 12 intervals, shank 40 coordinates with piston piece 12 inwall intervals in air supply passage 30, the bottom sidewall of button 22 bottom shanks 40 be arranged with two with the differential outer barb 41 being connected of side opening 122, on outer barb 41 and side opening 122 along dogging, air supply passage 30 bottoms and shank 40 bottoms form differential gap 60, in the differential gap 60 of button 22 and air supply passage 30, a seal 50 is set, the seal 50 of the present embodiment is a rubber parts 51, this rubber parts 51 is fixed on the bottom of button 22 bottom shanks 40, preferably, the bottom of button 22 bottom shanks 40 is provided with an installing hole 42, rubber parts 51 is chimeric to be fixed in installing hole 42, rubber parts 51 is arranged in air supply passage bottom opening 32 top differential gaps 60, and rubber parts 51 is arranged in air supply passage bottom opening 32 tops and in differential gap 60, so far completes erection work of the present invention.
Describe operating principle of the present invention and concrete enforcement action below in detail.
As
fig. 2with
fig. 3shown in, on press device 20, applying light decoration panel 221 presses down button 22, button 22 Compress Springs also drive the shank 40 of its bottom to press down a differential movement, in the air supply passage 30 of shank 40 in the piston piece 12 of press device 20, synchronously move downward with this differential movement, the rubber parts 51 of shank 40 bottoms makes the gap smaller of shank 40 bottoms and supplementary gas channel bottom opening 32, the side opening 122 of piston piece 12 bottoms is stepped down to the outer barb 41 of shank 40 bottoms, outer barb 41 is moved downward, until moving downward, rubber parts 51 presses while touching air supply passage bottom opening 32, differential gap 60 place's air supply passages 30 are sealed blocking-up by rubber parts 51, air supply passage bottom opening 32 is closed, whole air supply passage 30 is closed, make piston piece 12 seal up the top of cylinder 11, the described differential movement of pressing by 22 moments of button, make rubber parts 51 seal air supply passage bottom opening 32, due to the joint ring 13 and cylinder 11 inner wall sealings of piston piece 12 bottom sidewalls, therefore in the time that rubber parts 51 seals air supply passage bottom opening 32, piston piece 12 is sealed and matched to cylinder 11 tops formation piston types.
As
fig. 4with
fig. 5shown in, then under the state of rubber parts 51 hermetically closing air supply passages 30, continue downward pressing keys 22, making shank 40 bottom rubber parts 51 seal air supply passage bottom opening 32 presses down piston piece 12 and drives aerating device 10 to start working, piston piece 12 is together with lower air cylinder 11 compressed air of joint ring 13 sealings, the air with air pressure in cylinder 11 is discharged by steam vent 111, can transmit by the flexible pipe 70 being connected with steam vent 111 pneumatic means of air driven sanitary bath equipment, sanitary bath equipment is started.
As
fig. 6shown in, after aerating device 10 transmits air, be that exhaust is complete, unclamp button 22, button 22 moment under Compress Spring 23 reset deformation effect power the differential movement that rises, make the rubber parts 51 of shank 40 bottoms separate with 32 moments of air supply passage bottom opening and open air supply passage 30, the outer barb 41 of the shank 40 bottoms dogging edge on it of rising again in side opening 122, the air supply passage 30 of being blocked by the differential gap 60 of rubber parts 51 reopens; After button 22 rose with above-mentioned differential movement moment, continue in the process of jacking button 22 at spring 23, shank 12 draws high piston piece 12 by outer barb 41 dogging side openings 122 and moves upward, side opening 122, the differential gap 60 of air in button seat 21 by being communicated with air supply passage 30 supplements inlet casing 11 continually from air supply passage bottom opening 32, until press device reset to as
fig. 2when shown original state, cylinder 11 stops filling into air from air supply passage 30, and aerating device also resets to original state.
embodiment bis-(seal adopts rubber ring, and rubber ring is fixed on air supply passage bottom opening, the Kai Heguan of the clutch for clutch control air supply passage of the pressure surface of shank and rubber ring).
As
fig. 7shown in, the difference of the present embodiment and embodiment mono-is: the bottom of button 22 bottom shanks 40 is provided with pressure surface 43, the installing hole 42 in embodiment mono-is not established in the bottom of shank 40, the seal 50 that the present embodiment adopts is a rubber ring 52, rubber ring 52 is fixed on the air supply passage bottom opening 32 on piston piece 12, the pressure surface 43 of shank 40 presses down while contacting in differential gap 60 rubber ring 52, air supply passage bottom opening 32 is closed, the differential drive shank 40 of button 22 rises, pressure surface 43 is separated with rubber ring 52, air supply passage bottom opening 32 is opened, air supply passage 30 is opened, air supplements air through air supply passage bottom opening 32 to cylinder 11 by rubber ring 52, other structure, operating principle and the enforcement of the present embodiment are moved with embodiment mono-.
embodiment tri-(seal adopts rubber ring, and piston piece is a guide pipe, and guide pipe tube chamber is air supply passage, and rubber ring is fixed on guide pipe top along upper and in the differential gap between itself and button, and the outer barb of shank coordinates with the differential clutch of air supply passage bottom opening).
As
fig. 8shown in, the present embodiment is with the difference of embodiment mono-: the bottom sidewall of described button 22 bottom shanks 40 be arranged with two with the differential outer barb 41 being connected of air supply passage bottom opening 32 on guide pipe 120, outer barb 41 and air supply passage bottom opening 32 doggings matched in clearance, the present embodiment piston piece no longer arranges the side opening 122 in embodiment mono-, the seal 50 of the present embodiment is rubber ring 53, this rubber ring 53 is fixed on guide pipe 120 and pushes up along upper, when button 22 drives shank 40 to press down, the external barb 41 of air supply passage bottom opening 32 is stepped down, make button 22 and guide pipe 120 tops differential by interference fit along passing through differential gap 60, 22 moments of button are while pressing down a differential movement, when touching with button 22 bottom surfaces pressures, blocks rubber ring 53 in differential gap 30 differential gap 60, air supply passage open top 31 is closed, make whole air supply passage 30 close sealing guide pipe 120, then continuing to press down button 22 presses down guide pipe 120 by rubber ring 53 and drives aerating device 10 to do the action the same with embodiment, while unclamping button 22, spring 23 resets upwards to push up and presses button 22, button 22 bottom shanks outer barb 41 differential movement that moves upward, rubber ring 53 separates with button 22 bottom surfaces the differential gap 60 of being blocked by rubber ring 53 is communicated with again, air supply passage top/bottom part opening 31 is communicated with guide pipe 120 is outside, air supply passage bottom opening 32 again dogging to drive guide pipe 120 reseting movement that rises, now, the air of guide pipe 120 outsides is opened air supply passage 30 through air supply passage open top 31, air is filled in the cylinder 11 of aerating device 10 through air supply passage bottom opening 32 continuously in press device 20 reseting procedures, similar, rubber ring 53 also can be fixed on button 22 bottom surfaces, between guide pipe 120 edges, top and button 22, form described differential gap 60, pressing keys 22 makes the rubber ring 53 in differential gap 60 press tactile guide pipe 120 to push up edge, and air supply passage open top 31 is closed, other structure, operating principle and the enforcement of the present embodiment are moved with embodiment mono-.
Each embodiment is used for illustrative purposes only above, but not limitation of the present invention, those skilled in the art, without departing from the spirit and scope of the present invention, setting to air supply passage 30 on tubing string shape piston piece 12 also can have other variation, button 22 and piston piece 12 be differential is connected cooperation, also there is other conversion or change structure to control the switch of air supply passage 30, various being equal to, replaces or changes, therefore, all technical schemes that are equal to also should belong to category of the present invention, are limited by each claim.
Claims (8)
1. the Pneumatic button of an automatic inflating device, comprise a press device of pressing spring between the two to form by button seat, button and top, it is characterized in that: button seat below connects an aerating device, described aerating device comprises that a bottom is provided with the cylinder of steam vent, one and the piston piece that is sealed and matched of cylinder inner wall, described piston piece is provided with the air supply passage of a connection cylinder, described button coordinates with piston piece interval is differential, in described button and the differential gap of air supply passage, a seal is set; Described seal is for sealing air supply passage before pressing keys driven plunger part and unclamping the button piston piece front opening air supply passage that starts to reset.
2. the Pneumatic button of a kind of automatic inflating device as claimed in claim 1, it is characterized in that: in the middle of described button bottom, be provided with one with the differential shank being connected in piston piece interval, shank coordinates with piston piece dogging, and air supply passage bottom forms described differential gap with shank bottom.
3. the Pneumatic button of a kind of automatic inflating device as claimed in claim 2, it is characterized in that: on the sidewall of described piston piece bottom, be arranged with two side openings that are communicated with air supply passages, the bottom sidewall of button bottom shank be arranged with two with the differential outer barb being connected of side opening.
4. a kind of Pneumatic button of automatic inflating device as claimed in claim 2 or claim 3, it is characterized in that: described seal is a rubber parts, this rubber parts is fixed on the bottom of described button bottom shank, and rubber parts moves downward presses while touching air supply passage bottom opening, and air supply passage bottom opening is closed.
5. a kind of Pneumatic button of automatic inflating device as claimed in claim 2 or claim 3, it is characterized in that: the bottom of described button bottom shank is provided with pressure surface, described seal is a rubber ring, rubber ring is fixed on the air supply passage bottom opening on piston piece, when button pressed makes shank pressure surface contact in differential gap rubber ring, air supply passage bottom opening is closed.
6. the Pneumatic button of a kind of automatic inflating device as claimed in claim 1, it is characterized in that: described seal is rubber ring, described piston piece is a guide pipe, guide pipe tube chamber is air supply passage, this rubber ring is fixed on guide pipe and pushes up along upper, between edge, guide pipe top and button, form described differential gap, pressing keys is touched rubber ring and the button bottom surface pressure in differential gap, and air supply passage open top is closed.
7. the Pneumatic button of a kind of automatic inflating device as claimed in claim 1, it is characterized in that: described seal is rubber ring, described piston piece is a guide pipe, guide pipe tube chamber is air supply passage, this rubber ring is fixed on button bottom surface, between edge, guide pipe top and button, form described differential gap, pressing keys is pressed the rubber ring in differential gap and is touched edge, guide pipe top, and air supply passage open top is closed.
8. the Pneumatic button of a kind of automatic inflating device as described in claim 1 or 3 or 6 or 7, is characterized in that: described piston piece bottom sidewall is provided with an annular groove, fixes a joint ring being sealed and matched with cylinder inner wall in described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578157.3A CN103015509B (en) | 2012-12-27 | 2012-12-27 | Pneumatic button for automatic air supplement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578157.3A CN103015509B (en) | 2012-12-27 | 2012-12-27 | Pneumatic button for automatic air supplement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015509A CN103015509A (en) | 2013-04-03 |
| CN103015509B true CN103015509B (en) | 2014-10-15 |
Family
ID=47964569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210578157.3A Active CN103015509B (en) | 2012-12-27 | 2012-12-27 | Pneumatic button for automatic air supplement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103015509B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201214817Y (en) * | 2008-06-16 | 2009-04-01 | 彭东 | Pneumatic push button with air compensating structure |
| CN201214816Y (en) * | 2008-06-16 | 2009-04-01 | 彭东 | Pneumatic push button with air compensating structure |
| CN201809839U (en) * | 2010-09-26 | 2011-04-27 | 李飞宇 | Pneumatic button with air replenishing structure |
| EP2525004A1 (en) * | 2011-05-18 | 2012-11-21 | Wisa B.V. | Pneumatic flush control for a flush mechanism of a toilet |
| CN203022093U (en) * | 2012-12-27 | 2013-06-26 | 厦门瑞尔特卫浴科技股份有限公司 | Pneumatic button for automatically filling gas |
-
2012
- 2012-12-27 CN CN201210578157.3A patent/CN103015509B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201214817Y (en) * | 2008-06-16 | 2009-04-01 | 彭东 | Pneumatic push button with air compensating structure |
| CN201214816Y (en) * | 2008-06-16 | 2009-04-01 | 彭东 | Pneumatic push button with air compensating structure |
| CN201809839U (en) * | 2010-09-26 | 2011-04-27 | 李飞宇 | Pneumatic button with air replenishing structure |
| EP2525004A1 (en) * | 2011-05-18 | 2012-11-21 | Wisa B.V. | Pneumatic flush control for a flush mechanism of a toilet |
| CN203022093U (en) * | 2012-12-27 | 2013-06-26 | 厦门瑞尔特卫浴科技股份有限公司 | Pneumatic button for automatically filling gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103015509A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203022093U (en) | Pneumatic button for automatically filling gas | |
| CN105408644B (en) | Detachable vacuum pump device | |
| CN202875026U (en) | Coffee machine | |
| US9512603B2 (en) | Flushing mechanism | |
| CN206916866U (en) | Pneumatic control press-key structure and closestool | |
| CN201214817Y (en) | Pneumatic push button with air compensating structure | |
| CN103015509B (en) | Pneumatic button for automatic air supplement | |
| CN204551652U (en) | A kind of draining valve starting switch with pneumatic feel | |
| CN203050662U (en) | Hydraulic sliding sleeve switch | |
| CN203078943U (en) | Daily-use cosmetic packaging bottle | |
| CN212054595U (en) | Negative pressure type oil-gas mixed pumping pump capable of being matched with blowout prevention oil drain device | |
| CN212296299U (en) | Bidirectional pressure-bearing repeatable setting packer | |
| CN201973289U (en) | Two-position and five-way valve | |
| CN102562708A (en) | Telescopic cylinder and lighting device comprising same | |
| CN104315199A (en) | Two-position five-way reversing valve | |
| CN101298135A (en) | Driving tool and head valve assembly for a driving tool | |
| CN111155955A (en) | Negative-pressure oil-gas mixed pumping pump capable of being matched with blowout-prevention oil drainer and method | |
| CN209855748U (en) | Deep well air release valve | |
| CN213478286U (en) | Packer convenient to unseal | |
| CN208203219U (en) | A kind of interior blowout-preventing ball seat | |
| CN103277556B (en) | Temperature control valve | |
| CN215677392U (en) | Air pressure detection device | |
| CN201474655U (en) | Expanded packer used in oil supply | |
| CN219654831U (en) | Upper cover and single-bidirectional switching high-pressure hand-pulled air pump | |
| CN112208933A (en) | Push type foam pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |