CN109253071A - The relief fittings that cooperation inflator uses - Google Patents
The relief fittings that cooperation inflator uses Download PDFInfo
- Publication number
- CN109253071A CN109253071A CN201710570042.2A CN201710570042A CN109253071A CN 109253071 A CN109253071 A CN 109253071A CN 201710570042 A CN201710570042 A CN 201710570042A CN 109253071 A CN109253071 A CN 109253071A
- Authority
- CN
- China
- Prior art keywords
- joint body
- relief
- air flue
- valve rod
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B33/00—Pumps actuated by muscle power, e.g. for inflating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of relief fittingss, it include a joint body, one relief valve and a connection ring, joint body has an air flue, second opening of first opening of one connection air flue one end and a connection air flue other end, relief valve is set to joint body, it is mainly used to discharge the gas pressure in air flue, connection ring can opposing tabs ontology be rotatably arranged in joint body one end and some be located at joint body first opening in, the inner ring surface of connection ring has an internal thread part, relief fittings of the invention can be attached by the interconnecting piece of connection ring with various different inflators, consumer is allowed not need to buy more with specific pressure relief, and then achievees the effect that increase ease of use and save expense.
Description
Technical field
The present invention is related with pressure relief device, espespecially a kind of relief fittings that can allow various different inflators and use.
Background technique
In the prior art, inflator has not had pressure relief device, once the internal gas pressure mistake of object to be inflatable
Gao Shi, user need first to remove the gas nozzle of inflator, then voluntarily pressing object to be inflatable comes in the thimble of inflation place setting
The gas of a part is discharged, but if discharging excessive gas accidentally, causes the gas pressure of object to be inflatable too low, user
It must be reinstalled the gas nozzle of inflator, then operational pump cylinder is inflated object to be inflatable, whole process is really quite complicated
With inconvenience.
In order to solve the problems, such as pressure release, wind fairing head disclosed in No. 228169 patents of Taiwan I is provided with relief valve, when making
User with finger feel object to be inflatable gas pressure it is excessively high when, relief valve can be operated directly to reach adjustment gas pressure
Purpose.However in above-mentioned existing patent, relief valve can only cooperate the wind fairing head with specific structure to use, and there is no methods
Other various forms of wind fairing heads are mounted on, even if both still can only select together so consumer merely desires to buy more relief valve
Purchase, thus cause the increase of expense.In addition, if one of them is damaged and needs replacing, do not damage it is other it
One must also replace together, and the cost for the user in terms of maintenance also can be improved and then.
Summary of the invention
The main purpose of the present invention is to provide a kind of relief fittings, be able to cooperate various different inflators carry out using,
To increase using upper convenience and save expense of the consumer in terms of accessory.
In order to achieve the above objectives, relief fittings of the invention includes a joint body, a relief valve and a connection ring.
The inside of the joint body has an air flue, which has one first gas transmission end and one second gas transmission end, this is first defeated
Gas end has first opening for being connected to the air flue, which has second opening for being connected to the air flue；The pressure release
Valve is set to the joint body and has a relief hole and a valve rod, which is displaceably set to the relief hole and can be one
It is moved between air-tight position and a vent position, when the valve rod is located at the air-tight position, which can not be connected to the connector
The air flue of ontology can allow the air flue to be maintained at airtight conditions at this time, and when the valve rod is located at the vent position, which connects
Lead to the air flue of the joint body, the gas pressure in the air flue can be discharged at this time；The connection ring can turn with respect to the joint body
It is set in the first gas transmission end of the joint body and at least a part of the first opening positioned at the joint body dynamicly, this
Outside, the inner ring surface of the connection ring has an interconnecting piece, which is connect by the interconnecting piece with inflator.
By above structure it is found that relief fittings of the invention can carry out group with any inflator by the connection ring
Dress can provide the effect of adjustment gas pressure by the relief valve after assembly is completed, so can achieve increase and use
The purpose of convenience.If be damaged in structure in the future, as long as being individually replaced relief fittings of the invention, the company of not needing
It is replaced together with the inflator, thus can substantially save the expense in terms of maintenance.Relief fittings of the invention can engage
Any position between inflator gas outlet and gas nozzle, the present invention illustrates example to connect gas nozzle for convenience of explanation, but not with this
It is limited.
Preferably, the first gas transmission end of the joint body has the pin hole of a radial communication first opening, the connection ring
Outer ring surface have an annular groove, the pin hole of the joint body is arranged in by a pin member and is embedded at the annular groove of the connection ring, is made
The connection ring is pivotally assembled in the first gas transmission end of the joint body.
Preferably, which can be hidden in completely in the first opening of the joint body, or part is exposed to this
First opening of joint body is outer.If the former, the outer end face of the connection ring is flush to the first gas transmission end of the joint body
End face makes overall structure can achieve succinct effect, if being the latter, user can use this exposed part to this
Connection ring is manipulated, to further promote operation ease.
Preferably, which has more a mounting groove and a holding groove, which is connected to the air flue and is located at and be somebody's turn to do
Between first, second opening, which is recessed to be formed and correspond to the mounting groove from the wall surface of the air flue.The relief valve has
One valve seat, a sealing ring and a return springs, in which: the valve seat is set in the mounting groove of the joint body and lets out with this
Kong Yuyi pressure release passage is pressed, which is connected to the air flue of the relief hole and the joint body and is worn by the valve rod, and
There is a predetermined gap between the valve rod；The sealing ring is set to the outer peripheral surface of the valve rod, when the valve rod is located at the airtight position
When setting, which is located in the pressure release passage and is connected to the wall surface of the pressure release passage, makes between the relief hole and the air flue
It can not be connected to, when the valve rod is located at the vent position, which leaves the pressure release passage and be located at the gas of the joint body
In road, it is connected to formation between the relief hole and the air flue；The return springs are set to the end of the holding groove of the joint body
Between wall and the bottom end of the valve rod, the valve rod is maintained at the air-tight position to provide elastic force.
Preferably, which also has one to press button for a user to operate, which is set to the top of the valve rod
End, when the valve rod is located at the air-tight position, which is locally exposed to outside the relief hole, when the valve rod is located at the vent position
When, which is located in the relief hole.
Preferably, which also has one second sealing ring, which is set to the installation of the joint body
Between slot and the valve seat, to ensure airtight effect between the two.
Preferably, the outer peripheral surface of the second gas transmission end of the joint body has an external thread part, is mainly used to inflate with this
One air delivering pipeline of cylinder connects.
Detailed description of the invention
Fig. 1 is the stereoscopic figure of the relief fittings of the 1st embodiment of the invention.
Fig. 2 is the stereogram exploded view of the relief fittings of the 1st embodiment of the invention.
Fig. 3 is the assembled sectional view of the relief fittings of the 1st embodiment of the invention.
Fig. 4 is the relief fittings of the 1st embodiment of the invention in the stereogram exploded view for being assembled in gas nozzle.
Fig. 5 is stereoscopic figure of the relief fittings of the 1st embodiment of the invention after being assembled in gas nozzle.
Fig. 6 is the partial sectional view that the relief fittings of the 1st embodiment of the invention cooperates gas nozzle to use, main to show valve rod position
In air-tight position.
Fig. 7 is analogous to the 6th figure, main to show that valve rod is located at vent position.
The stereoscopic figure of the relief fittings of Fig. 8 the 2nd embodiment of the present invention.
The stereogram exploded view of the relief fittings of Fig. 9 the 2nd embodiment of the present invention.
[Detailed description of the invention]
10 gas nozzle, 12 external thread part
20 relief fittings, 30 joint body
31 first gas transmission ends 312 first opening
314 pin hole, 32 second gas transmission end
322 second 324 external thread parts of opening
33 air flue, 34 protruding shaft
35 first sealing ring, 36 mounting groove
37 holding groove, 40 relief valve
41 valve seat, 412 relief hole
414 pressure release passage, 42 valve rod
43 press button, 44 return springs
45 second sealing ring, 46 third sealing ring
P1 air-tight position P2 vent position
50 connection ring, 51 annular groove
52 internal thread part, 53 pin member
60 connection ring, 62 operation portion
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
Please referring initially to Fig. 4 and Fig. 5, gas nozzle 10 shown in figure be but be not limited thereto by taking double end gas nozzle as an example, however
Whether the gas nozzle of double end gas nozzle, single head gas nozzle or other forms, in order to be connected with the air delivering pipeline (not shown) of inflator,
Each gas nozzle all has an external thread part 12 in structure.
Referring again to Fig. 1 and Fig. 2, the relief fittings 20 of the 1st embodiment of the invention includes a joint body 30, a pressure release
Valve 40 and a connection ring 50.
Please refer to Fig. 2 and Fig. 3, joint body 30 has one first gas transmission end 31 and one second gas transmission end 32, and first
Gas transmission end 31 has one first opening 312 and two relatively radial pin holes 314 for being connected to the first opening 312, the second gas transmission end
32 have one second opening 322, and the outer peripheral surface of the second gas transmission end 32 has an external thread part 324.The inside of joint body 30
With an air flue 33, the both ends of air flue 33 are respectively communicated with the first, second opening 312,322, moreover, joint body 30 is from air flue 33
One end towards first opening 312 direction extend a protruding shaft 34, protruding shaft 34 is arranged with one first sealing ring 35.In addition, connector
Ontology 30 is with more a mounting groove 36 and a holding groove 37,36 vertical connection air flue 33 of mounting groove and positioned at the first, second opening
312, between 322, the wall surface of holding groove 37 from air flue 33 is recessed to be formed and correspond to mounting groove 36.
Please refer to figs. 2 and 3, and relief valve 40 has a valve seat 41, a valve rod 42, a press button 43 and a return springs
44, in which:
Valve seat 41 is fixed in the mounting groove 36 of joint body 30 with screw-in version and has a relief hole 412 and a pressure release
Channel 414, pressure release passage 414 is between relief hole 412 and the air flue 33 of joint body 30.In addition, the outer peripheral surface of valve seat 41
It is embedded with one second sealing ring 45, the second sealing ring 45 is connected to the cell wall of the mounting groove 36 of joint body 30, to ensure two
Airtight effect between person.
The top of valve rod 42 is located in the relief hole 412 of valve seat 41, the bottom end of valve rod 42 via valve seat 41 pressure release passage
414 are arranged in the air flue 33 of joint body 30, moreover, the wall surface of the pressure release passage 414 of the outer peripheral surface of valve rod 42 and valve seat 41 it
Between have a predetermined gap.In addition, the outer peripheral surface of the bottom end of valve rod 42 is embedded with a third sealing ring 46, when valve rod 42 is located at one
When air-tight position P1 (as shown in Figure 6), third sealing ring 46 is located in the pressure release passage 414 of valve seat 41 and is connected to valve seat 41
The wall surface of pressure release passage 414 be connected to the air flue 33 of joint body 30 can not with the relief hole 412 of valve seat 41, when valve rod 42
When vent position P2 (as shown in Figure 7), third sealing ring 46 lift off a seat 41 pressure release passage 414 and be located at joint body
In 30 air flue 33, the air flue 33 of joint body 30 is enable to be connected to the relief hole of valve seat 41 via the pressure release passage 414 of valve seat 41
412。
Press button 43 is fixed on the top of valve rod 42, is pressed with for user.When valve rod 42 is positioned at as shown in FIG. 6 airtight
When the P1 of position, 43 part of press button is exposed to outside the relief hole 412 of valve seat 41, when valve rod 42 is located at vent position as shown in Figure 7
When P2, press button 43 is located in the relief hole 412 of valve seat 41.
Return springs 44 are set between the end wall of the holding groove 37 of joint body 30 and the bottom end of valve rod 42, to mention
Valve rod 42 is maintained at air-tight position P1 for elastic force.
The outer ring surface of connection ring 50 has an annular groove 51, and the inner ring surface of connection ring 50 has an interconnecting piece, in the present embodiment
In be an internal thread part 52, internal thread part 52 is used to the external thread part 12 of gas nozzle 10 of arranging in pairs or groups.The connection type of connection ring and gas nozzle
It is not limited with being spirally connected.
When being assembled with gas nozzle 10, as shown in Figures 4 and 5, pass through the internal thread part 52 and gas of connection ring 50 first
Connection ring 50 is assembled in gas nozzle 10 by the relationship that screws togather between the external thread part 12 of mouth 10, then by 30 company of being sheathed on of joint body
Ring 50 is connect, is located at connection ring 50 in first opening 312 of joint body 30, is worn respectively by two opposite pin members 53 later
In joint body 30 a pin hole 314 and jointly be embedded at connection ring 50 annular groove 51 in, make connection ring 50 can be connected to each other
The mode that head ontology 30 rotates is assembled in the first gas transmission end 31 of joint body 30, at this time again by the air delivering pipeline of inflator with
Screw connection manner is assembled in the external thread part 324 of the second gas transmission end 32 of joint body 30, connects relief fittings 20 of the invention
Between the air delivering pipeline and gas nozzle 10 of inflator, operational pump cylinder can be started at this time.
In the process of operational pump cylinder, the gas exported from the air delivering pipeline of inflator can be via joint body 30
The second gas transmission end 32 enter joint body 30 air flue 33 in, due to valve rod 42 at this time be located at it is as shown in FIG. 6 airtight
Position P1 is inflated gas nozzle 10 to object to be inflatable dynamic so can be directly entered in gas nozzle 10 into the gas in air flue 33
Make.
If discharge the gas pressure of object to be inflatable, press button 43 is pressed with finger, makes valve rod 42 from as shown in FIG. 6
Air-tight position P1 is displaced downwardly to vent position P2 as shown in Figure 7, and the internal gas of object to be inflatable can enter from gas nozzle 10 and connect at this time
In the air flue 33 of head ontology 30, valve seat 41 then is flow to from the air flue 33 of joint body 30 via the pressure release passage 414 of valve seat 41
Relief hole 412, be finally discharged outside to again from the relief hole 412 of valve seat 41.It can also as the excessive gas in air delivering pipeline
In from the second gas transmission end 32 of joint body 30 into the air flue 33 of joint body 30, then equally via the pressure release of valve seat 41
Channel 414 flow to the relief hole 412 of valve seat 41, is finally discharged outside to again from the relief hole 412 of valve seat 41.To the end of pressure release it
Afterwards, the strength to press button 43 is discharged, valve rod 42 can return to the air-tight position P1 of script by the elastic force of return springs 44.
If relief fittings 20 in the future of the invention will inflate first when configuration aspects are damaged and need replacing part
Air delivering pipeline and the joint body 30 of cylinder separate, and two pin members 53 are then pushed away to using tool the pin hole 314 of joint body 30,
So that joint body 30 is disconnected ring 50, finally screws off connection ring 50 again, it at this time can be according to carrying out zero the case where fact damaged
The replacement of part, it is to be replaced finish after fitted together again with gas nozzle 10 further in accordance with above-mentioned steps.In other words, of the invention to let out
The part that damage itself is only needed replacing when crimp head 20 encounters repair, does not need that gas nozzle 10 is allowed to carry out together more
It changes, therefore can substantially save the expense in terms of maintenance.
Herein it is noted that in the present embodiment, as shown in figure 3, connection ring 50 is complete after assembly is completed
It is hidden in the first opening 312 of joint body 30, moreover, one end of connection ring 50 is connected to the first sealing ring 35, to ensure
Connection ring 50 is with that can maintain good air-tightness between joint body 30, the end face of the other end of connection ring 50 is in connector sheet
The end face of first gas transmission end 31 of body 30, makes connection ring 50 allow overall appearance to reach simplicity after being assembled in joint body 30
Effect.
On the other hand, connection ring 50 is set to joint body 30 in a manner of hiding completely compared to above-described embodiment
In first opening 312, in the 2nd embodiment of the invention, connection ring 60 is that joint body 30 is set in a manner of locally exposing
First opening 312, other primary structures are then identical with above-described embodiment.As can be seen from figures 8 and 9, connection ring 60
One end is connected to the first sealing ring 35, and the other end of connection ring 60 is protruded from outside the first opening 312 of joint body 30 and formed
One operation portion 62 allows user that can first be about to connection ring 60 is assembled in joint body 30 first by this operation portion 62
Gas transmission end 31 recycles operation portion to be rotatablely connected ring 60, connection ring 60 is made to be assembled in gas nozzle 10 with screw-in version, as dismantling
When, connection ring 60 is also inverted by operation portion 62, and connection ring 60 is made to be detached from gas nozzle 10 together with joint body 30,
It does not need using the pin hole 314 that pin member 53 is pushed away to joint body 30 to tool, to further increase operationally just
Benefit.
In conclusion relief fittings of the invention can by connection ring with any inflator gas nozzle with the side of being spirally connected
Formula is assembled, and can provide the effect of adjustment gas pressure by relief valve 40 after assembly is completed, and then reach increase
The purpose of ease of use.And other than being connect in addition to the gas nozzle with inflator, relief fittings of the invention, which can also be arranged in, beats
On the appendix of inflator, if be damaged in structure in the future, as long as being individually replaced relief fittings of the invention, so may be used
To achieve the effect that save expense.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (9)
1. a kind of relief fittings that cooperation inflator uses, which includes:
One joint body, the inside of the joint body have an air flue, which has one first gas transmission end and one second
Gas transmission end, first gas transmission end have first opening for being connected to the air flue, which has one to be connected to the air flue
Second opening；
One relief valve is set to the joint body and has a relief hole and a valve rod, which is displaceably set to this and lets out
Pressure and can move at hole between an air-tight position and a vent position, when the valve rod is located at the air-tight position, the relief hole without
Method is connected to the air flue of the joint body, and when the valve rod is located at the vent position, which is connected to the air flue of the joint body；
And
One connection ring can be rotatably arranged in the first gas transmission end of the joint body and at least a part of with respect to the joint body
In the first opening of the joint body, the inner ring surface of the connection ring has an interconnecting piece, can connect with inflator.
2. the relief fittings that uses of cooperation inflator as described in claim 1, the wherein interconnecting piece of the inner ring surface of the connection ring
For an internal thread part.
3. the relief fittings that cooperation inflator uses as described in claim 1, wherein the first gas transmission end of the joint body has
There is the pin hole of a radial communication first opening, the outer ring surface of the connection ring has an annular groove, which can by a pin member
It is rotatably arranged in the first gas transmission end of the joint body, which is arranged in the pin hole of the joint body and is embedded at the connection
The annular groove of ring.
4. the relief fittings that uses of cooperation inflator as described in claim 1, wherein the joint body is from one end of the air flue
Extend a protruding shaft towards the direction of first opening, which is fully located in the first opening of the joint body, the connection
One end of ring is connected to first sealing ring for being sheathed on the protruding shaft, and the end face of the other end of the connection ring is in the connector sheet
The end face of first gas transmission end of body.
5. the relief fittings that uses of cooperation inflator as described in claim 1, wherein the joint body is from one end of the air flue
Extend a protruding shaft towards the direction of first opening, which is partially located in the first opening of the joint body, the connection
One end of ring is connected to first sealing ring for being sheathed on the protruding shaft, and the other end of the connection ring protrudes from the of the joint body
One opening is outer.
6. the relief fittings that cooperation inflator uses as described in claim 1, wherein the joint body has more a mounting groove
With a holding groove, which is connected to the air flue and is located between first, second opening, wall surface of the holding groove from the air flue
Recess forms and corresponds to the mounting groove；The relief valve has a valve seat, a third sealing ring and a return springs, the valve seat
Be set in the mounting groove of the joint body and have the relief hole and a pressure release passage, the pressure release passage be connected to the relief hole and
It the air flue of the joint body and is worn by the valve rod, and there is a predetermined gap between the valve rod, which sets
In the outer peripheral surface of the valve rod, when the valve rod is located at the air-tight position, which is located in the pressure release passage and abuts
In the wall surface of the pressure release passage, when the valve rod is located at the vent position, which leaves the pressure release passage and is located at
In the air flue of the joint body, the return springs be set to the holding groove of the joint body end wall and the valve rod bottom end it
Between, the valve rod is maintained at the air-tight position to provide elastic force.
7. the relief fittings that cooperation inflator uses as claimed in claim 6, wherein the relief valve also has a press button, the pressure
Button is set to the top of the valve rod, and when the valve rod is located at the air-tight position, which is locally exposed to outside the relief hole, when this
When valve rod is located at the vent position, which is located in the relief hole.
8. the relief fittings that cooperation inflator uses as claimed in claim 6, wherein the relief valve also has one second sealing
Ring, second sealing ring are set between the mounting groove of the joint body and the valve seat.
9. the relief fittings that uses of cooperation inflator as described in claim 1, wherein the second gas transmission end of the joint body
Outer peripheral surface has an external thread part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570042.2A CN109253071B (en) | 2017-07-13 | 2017-07-13 | Pressure relief joint used in cooperation with inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570042.2A CN109253071B (en) | 2017-07-13 | 2017-07-13 | Pressure relief joint used in cooperation with inflator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109253071A true CN109253071A (en) | 2019-01-22 |
| CN109253071B CN109253071B (en) | 2020-07-17 |
Family
ID=65051762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710570042.2A Active CN109253071B (en) | 2017-07-13 | 2017-07-13 | Pressure relief joint used in cooperation with inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253071B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040086404A1 (en) * | 2002-10-31 | 2004-05-06 | Scott Wu | Pump capable of releasing excessive air |
| US20050129544A1 (en) * | 2003-12-15 | 2005-06-16 | Scott Wu | Air nozzle and relief valve arrangement for vertical tire pump |
| CN201255254Y (en) * | 2008-08-28 | 2009-06-10 | 余锋 | Control valve of oxygenation pumping system |
| TW201538849A (en) * | 2014-04-02 | 2015-10-16 | Beto Engineering & Marketing | Push-bar-free air pump nozzle |
| CN207161295U (en) * | 2017-07-13 | 2018-03-30 | 双余实业股份有限公司 | The relief fittings for coordinating inflator to use |
-
2017
- 2017-07-13 CN CN201710570042.2A patent/CN109253071B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040086404A1 (en) * | 2002-10-31 | 2004-05-06 | Scott Wu | Pump capable of releasing excessive air |
| US20050129544A1 (en) * | 2003-12-15 | 2005-06-16 | Scott Wu | Air nozzle and relief valve arrangement for vertical tire pump |
| CN201255254Y (en) * | 2008-08-28 | 2009-06-10 | 余锋 | Control valve of oxygenation pumping system |
| TW201538849A (en) * | 2014-04-02 | 2015-10-16 | Beto Engineering & Marketing | Push-bar-free air pump nozzle |
| CN207161295U (en) * | 2017-07-13 | 2018-03-30 | 双余实业股份有限公司 | The relief fittings for coordinating inflator to use |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109253071B (en) | 2020-07-17 |
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