CN109973454A - A kind of quick coupling with overflow valve function - Google Patents
A kind of quick coupling with overflow valve function Download PDFInfo
- Publication number
- CN109973454A CN109973454A CN201910257729.XA CN201910257729A CN109973454A CN 109973454 A CN109973454 A CN 109973454A CN 201910257729 A CN201910257729 A CN 201910257729A CN 109973454 A CN109973454 A CN 109973454A
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- Prior art keywords
- cavity
- pressure release
- grid
- pressure
- overflow valve
- 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.)
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Links
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 14
- 230000006837 decompression Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005457 optimization Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of quick couplings with overflow valve function, including connector, connector includes joint body, high-voltage end, decompression end, pressure relieving end, pressure relieving end cooperation is equipped with pressure release component, pressure release component includes mounting bracket and pressure release valve block, mounting bracket includes mounting bracket ontology, the first cavity, the second cavity and pressure release grid, and pressure release grid includes grid ontology and installation axle, and pressure release valve block is fixed in installation axle and to part grating body surface.The present invention facilitates the high pressure kicks pipe rapid abutting joint of connector and equipment using lock quick fixation structure by optimization design, improves the convenience of the oil pipe docking used；Optimize pressure release end structure, using grid separated structure, improves the stability of pressure release and the agility of air discharge；Described in synthesis, this product design can substitute conventional outflow valve, with rapid abutting joint structure, while having the effect of overflow valve, simplify product structure, reduce the production cost.
Description
Technical field
The present invention relates to overflow valve technical field, in particular to a kind of quick coupling with overflow valve function.
Background technique
Overflow valve is a kind of hydraulic pressure control valve, mainly plays level pressure overflow in hydraulic device, pressure stabilizing, system unloaded and
Safeguard protection effect.A hydraulicdriven characteristic exactly can very easily realize overload protection, and here it is overflow valves to rise
Effect, it is the unlatching overflow by valve port, and the pressure of system is made to keep constant or limit maximum pressure.Overflow valve not only can be with
The effect for playing safety valve, is also used as the purposes such as pressure regulator valve, unloading valve, counterbalance valve, balanced valve.In systems as safety
Valve in use, overflow valve be normally off, only in system overload just unlatching overflow, to limit the maximum pressure of hydraulic system,
Protect hydraulic system or mechanical structure；In throttle valve speed-regulating system, overflow valve is normally open, and overflow valve is pressure regulator valve at this time
Or constant pressure valve, to keep the pressure of system constant.
The effect of overflow valve includes:
1, level pressure overflow acts on: in constant displacement pump flow restriction control system, constant displacement pump provides constant flow rate.When system pressure
When power increases, flow demand can be made to reduce.Overflow valve is opened at this time, and excess traffic is made to overflow oil return box, guarantee overflow valve inlet-pressure
Power, i.e. pump discharge pressure are constant (valve port is often opened with pressure oscillation).
2, pressure stabilization function: overflow valve is connected on oil return line, and overflow valve generates back pressure, and moving component stationarity increases.
3, system unloaded acts on: concatenating the solenoid valve for the small flow that overflows in the remote control mouth of overflow valve, when the solenoid is energized, overflows
The remote control mouth for flowing valve leads to fuel tank, at this time hydraulic pump off-load.Overflow valve is used as unloading valve to use at this time.
4, safeguard protection acts on: when system worked well, valve is closed.Only load is more than the defined limit (system pressure
Power is more than set pressure) Shi Kaiqi overflow, overload protection is carried out, being further added by system pressure not (usually makes the setting of overflow valve
High 10%~20%) of pressure ratio system maximum working pressure.
Overflow valve in actual application, typically as unloading valve use, remote pressure regulating valve, high-low pressure Multistage Control
Valve, sequence valve or string, for generating back pressure etc., generally include two kinds of structures: direct acting type overflow valve and pilot-operated type on oil return line
Overflow valve.
Because good effect may be implemented in more multi-field for overflow valve, existing overflow valve docking is usually simply used
Oil pipe is done directly docking or generallys use helicitic texture and docked, and the connection of different pipelines is realized, to realize high pressure
Oil inlet, fuel-displaced and pressure release the function of decompression, however the installation of existing overflow valve is relatively complicated, and the docking of its oil pipe is also extremely
It is coarse, therefore it is easy to cause oil leak present, influence the normal use of overflow valve；And existing overflow valve internal structure is more multiple
Miscellaneous, cost of manufacture is relatively high, also relatively complicated with the abutting joint of equipment, while internal pressure release position is generally only to be equipped with
Corresponding relief hole is unfavorable for the discharge of gas in oil circuit, influences whole using effect.
Summary of the invention
The purpose of the present invention is to provide a kind of quick couplings with overflow valve function, can solve technology in above-mentioned background
Problem has the characteristics that docking is efficient and convenient, pressure release is stable effectively, air discharge is effective and rapid.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of quick coupling with overflow valve function, including connector, the connector include joint body and are mutually communicated
High-voltage end, decompression end, pressure relieving end, pressure relieving end cooperation is equipped with pressure release component, the pressure release component include mounting bracket and
Pressure release valve block, the mounting bracket include mounting bracket ontology, positioned at mounting bracket ontology inner end the first cavity, be located at peace
The second cavity and the pressure release grid between first cavity and second cavity for filling rack body outer end, it is described
Pressure release grid includes grid ontology and in the middle part of the grid ontology and the installation axle for the setting that extends outwardly, the pressure release valve block
It is fixed in the installation axle and partially to cover the grid body surface.
The grid ontology uses scattering formula cell structure.
The grid ontology is equipped with several grids by extending centrally out, and is cavity knot between adjacent grid
Structure, the grid section are isosceles trapezoid shape or isosceles triangle shape, and the grating thickness size gradually subtracts from center to edge
It is small, small end towards the second cavity at, big end towards the first cavity at.
The first cavity internal diameter is less than the second cavity internal diameter, and the pressure release valve block outer diameter is greater than
Equal to the first cavity internal diameter and less than the second cavity internal diameter.
It further include sealing ring, the sealing ring is the pressure release valve block to be fixedly installed in the installation axle.
The mounting bracket body part insertion is installed in the pressure relieving end inner cavity, and is made first cavity and let out
The docking of pressure side inner cavity.
Fuel-displaced lumen is equipped with inside the decompression end, fuel-displaced lumen ecto-entad inner cavity caliber size gradually reduces.
Internal chamber wall of the high-voltage end at lateral surface is equipped with lock holding tank, and set there are two it is symmetrical by
Button cavity, the button cavity run through the side wall of the high-voltage end, and the lock holding tank and button cavity are to install lock
Button.
The lock includes button portion, elastic joint part and Carcel portion, and the elastic joint part is to connect the button
Portion and Carcel portion, the button portion are installed in the button cavity, and the lock part is corresponded to each other with the lock holding tank
Cavity is equipped between and, the lock part can be mobile to cavity.
The high-voltage end inner cavity is additionally provided with sealing ring and retaining ring, and affiliated lock is located at the sealing ring and retaining ring outside portion.
The present invention has following outstanding advantages and effect compared with prior art: the present invention is by optimization design, using lock
Quick fixation structure is detained, the high pressure kicks pipe rapid abutting joint of connector and equipment is facilitated, improves the convenience of the oil pipe docking used；It is excellent
Change pressure release end structure, outlet cavity is improved using grid separated structure using pressure release component, while utilizing pressure release valve block
It is correspondingly arranged, improves the stability of pressure release and the agility of air discharge；Described in synthesis, this product design can substitute tradition
Overflow valve simplifies product structure with overflow valve while having the effect of rapid abutting joint structure, reduces and is fabricated to
This.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Detailed description of the invention
Fig. 1 is whole decomposition texture schematic diagram of the invention；
Fig. 2 is integral assembling structure schematic diagram of the invention；
Fig. 3 is whole schematic cross-sectional view of the invention；
Fig. 4 is joint structure schematic diagram of the invention；
Fig. 5 is pressure release component decomposition texture schematic diagram of the invention；
Fig. 6 is pressure release component schematic cross-sectional view one of the invention；
Fig. 7 is pressure release component schematic cross-sectional view two of the invention；
Fig. 8 is grid schematic cross-sectional view one of the invention；
Fig. 9 is grid schematic cross-sectional view two of the invention；
Figure 10 is buckle structure schematic diagram of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
As shown in Fig. 1 to 10, a kind of quick coupling with overflow valve function, including connector, the connector include connector
Ontology 1 and the high-voltage end 2 being mutually communicated, decompression end 3, pressure relieving end 4, high-voltage end 2 to be docked with the pipeline that overflows of the high pressure in equipment,
End 3 is depressurized to dock with oil return oil pipe, convenient for the oil body of overflow to be back in hydraulic oil container, pressure relieving end 4 is in being discharged
Portion's high pressure gas, while realizing the inside and outside effect for flattening weighing apparatus.
Preferably, the cooperation of pressure relieving end 4 is equipped with pressure release component 5 in the present embodiment, and the pressure release component 5 includes mounting bracket 51
With pressure release valve block 52, the mounting bracket 51 includes mounting bracket ontology 511, positioned at the of 511 inner end of mounting bracket ontology
One cavity 513, positioned at 511 outer end of mounting bracket ontology the second cavity 514 and be located at first cavity 513 and described the
Pressure release grid 512 between two cavities 514, mounting bracket ontology 511, which is partially submerged into, to be installed in 4 inner cavity of pressure relieving end, and is made
First cavity 513 is docked with 4 inner cavity of pressure relieving end；4 lateral wall of pressure relieving end is equipped with reversed acanthoid card convex, and reversed acanthoid card convex is convenient for and pipe
Part docking, improves the leakproofness and fastness of docking.
Usually in preferred design, the outside portion outside the first cavity 513, which has fully embedded into, is installed on 4 inner cavity of pressure relieving end
In, realize sealing docking, while because optimization uses 5 structure of pressure release component, therefore 513 inner cavity of the first cavity and joint body 1
Inner cavity directly penetrates through, and can form integrated cavity structure, and in addition the outside portion outside the second cavity 514, which usually exposes to, lets out
Outside pressure side, step docking structure is used to design, realizes sealing installation convenient for more preferable.
Usually in preferred design, pressure release grid 512 includes grid ontology 5121 and is located at 5121 middle part of grid ontology simultaneously
Extend outwardly the installation axle 5122 of setting, and usually with 52 corresponding matching of pressure release valve block, pressure release valve block 5 is fixed on grid ontology 5121
In installation axle 5122 and to 5121 surface of part grating ontology, blocked so that 1 inner cavity of butt joint ontology is realized, this implementation
By optimizing the structure of grid ontology 5121 structure and pressure release valve block 52, while 513 internal diameter ruler of the first cavity of preferred design in example
Very little 52 outer diameter of pressure release valve block is equal to 513 internal diameter of the first cavity less than 514 internal diameter of the second cavity, therefore can be with
The function of realizing pressure release perforation, changing structure is two-way communicating structure, is easy to implement quick pressure releasing function, improves the stabilization of pressure release
Property, it may be implemented effectively to be used cooperatively with equipment overflow pipe；When equipment needs to complete overflow pressure relief, usually make
Oil body with high pressure flow velocity is from the inner cavity that high-voltage end 2 enters joint body 1, and usually decompression end 3 exports, however depressurizes back
The oil body of stream cannot have too high flow rate, and the outlet of decompression end 3 is smaller, need to complete by pressure relieving end 4 to entrance in this time
The oil body of 1 inner cavity of joint body carries out pressure release buffering, therefore 5121 structure of optimization design grid ontology, can quickly by oil body into
Row is upset, and pressure release valve block 52 is impacted, and by being designed using lateral outer flow structure, allows to internal high pressure stream quickly
The oil body of speed, which completes flow velocity, to be reduced, then fuel-displaced convenient for completing from decompression end 3；In addition, structure design may be implemented quickly to arrange
Gas, avoiding, which leads to be vented because relief hole is smaller unsmooth problem, occurs.
In addition, further preferably optimize the fuel-displaced lumen 31 depressurized in end 3, fuel-displaced lumen 31 is preferably adopted
The structure gradually reduced with ecto-entad inner cavity caliber size, the access aperture docked with the inner cavity of joint body 1 is smaller, gradually
It expands outwardly, flow velocity can be reduced, be convenient for oil return；In addition, decompression 3 lateral wall of end is equipped with reversed acanthoid card convex, reversed acanthoid card convex
Convenient for docking with pipe fitting, the leakproofness and fastness of docking are improved.
Further, grid ontology 5121 uses scattering formula cell structure, convenient for being convenient for that pressure release valve block 52 is combined to realize laterally
Aerial drainage can establish runner, runner is in pressure release valve block because of the difference using the first cavity 513 and the internal diameter of the second cavity 514
52 unmasked portions, and it is in circumference outermost end, it then needs laterally to flow out when oil body flows to, with good reduction of speed effect；
Grid ontology 5121 is equipped with several grids by extending centrally out, and is cavity structure between adjacent grid, and grid is cut
Face be isosceles trapezoid shape or isosceles triangle shape, small end towards the second cavity at, big end towards the first cavity at, optimization
Grid cross section structure, the arrangement design of big small end face are to improve shunting effect to preferably realize grid shunting function；
Grating thickness size is gradually reduced from center to edge, is formed bullet-headed structure design, is conducive to improve shunting effect.
It further, further include sealing ring 53, the sealing ring 53 is described the pressure release valve block 52 to be fixedly installed in
In installation axle 5122.
Further, internal chamber wall of the high-voltage end 2 at lateral surface be equipped with lock holding tank 22, and set there are two mutually it is right
The button cavity 21 of title, button cavity 21 run through the side wall of the high-voltage end 2, latch holding tank 22 and button cavity 21 to
Installation lock 6；Lock 6 is to improve docking convenience for the ease of quickly docking with equipment overflow pipe fitting.
Further, lock 6 includes button portion 61, elastic joint part 62 and Carcel portion 63, and elastic joint part 62 is to connect
The button portion 61 and Carcel portion 63, button portion 61 are installed in the button cavity 21, lock part 63 and lock holding tank 22
It corresponds to each other and is equipped with cavity between simultaneously, lock part 63 can be mobile to cavity；When needing the service of connection devices overflow pipe fitting, by two sides
Button portion 61 is pressed to center, and conduction is to Carcel portion 63 after 62 stress of elastic joint part, to outer expandable after 63 stress of Carcel portion,
To which Carcel portion 63 is mobile to cavity, while the dimensional space of inner cavity is increased, when the corresponding pipe fitting of equipment is packed into the cavity
After interior, loosen button portion, realize and reset, the pipe fitting of chimeric loading quickly can be completed clamping by Carcel portion 63, realize quickly peace
Dress.
Further, 2 inner cavity of high-voltage end is additionally provided with sealing ring 7 and retaining ring 8, and the lock 6 is located at the sealing ring 7 and retaining ring
8 outside portions avoid oil leak from occurring for increasing the sealing effect of docking.
The present invention facilitates connector and the high-pressure pipeline in equipment quick by optimization design using lock quick fixation structure
Docking improves the convenience of the oil pipe docking used；Optimize pressure release end structure, using pressure release component, is separated and tied using grid
Structure is improved outlet cavity, while being correspondingly arranged using pressure release valve block, and the stability and air for improving pressure release are discharged fast
Victory.
Described in synthesis, this product design can substitute conventional outflow valve, have while with rapid abutting joint structure and overflow
The effect for flowing valve, simplifies product structure, reduces the production cost.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (10)
1. a kind of quick coupling with overflow valve function, including connector, the connector includes joint body and is mutually communicated
High-voltage end, decompression end, pressure relieving end, it is characterised in that: the pressure relieving end cooperation is equipped with pressure release component, and the pressure release component includes peace
Fill bracket and pressure release valve block, the mounting bracket includes mounting bracket ontology, positioned at the first logical of mounting bracket ontology inner end
Chamber, the pressure release positioned at the second cavity of mounting bracket ontology outer end and between first cavity and second cavity
Grid, the pressure release grid include grid ontology and in the middle part of the grid ontology and the installation axle for the setting that extends outwardly, institute
Pressure release valve block is stated to be fixed in the installation axle and partially to cover the grid body surface.
2. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: the grid ontology
Using scattering formula cell structure.
3. a kind of quick coupling with overflow valve function according to claim 1 or 2, it is characterised in that: the grid
Ontology is equipped with several grids by extending centrally out, and is cavity structure between adjacent grid, the grid section is
Isosceles trapezoid shape or isosceles triangle shape, the grating thickness size are gradually reduced from center to edge, and small end is towards
At two cavities, big end towards the first cavity at.
4. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: first cavity
Internal diameter is less than the second cavity internal diameter, and the pressure release valve block outer diameter is more than or equal to the first cavity internal diameter
And less than the second cavity internal diameter.
5. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: further include sealing
Circle, the sealing ring is the pressure release valve block to be fixedly installed in the installation axle.
6. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: the mounting bracket
Body part insertion is installed in the pressure relieving end inner cavity, and first cavity is docked with pressure relieving end inner cavity.
7. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: in the decompression end
Portion is equipped with fuel-displaced lumen, and fuel-displaced lumen ecto-entad inner cavity caliber size gradually reduces.
8. a kind of quick coupling with overflow valve function according to claim 1, it is characterised in that: the high-voltage end leans on
Internal chamber wall at nearly lateral surface is equipped with lock holding tank, and sets that there are two symmetrical button cavity, the button cavities
Through the side wall of the high-voltage end, the lock holding tank and button cavity are to install lock.
9. a kind of quick coupling with overflow valve function according to claim 8, it is characterised in that: the lock includes
Button portion, elastic joint part and Carcel portion, the elastic joint part is to connect the button portion and Carcel portion, the button portion
It is installed in the button cavity, the lock part corresponds to each other between simultaneously with the lock holding tank and is equipped with cavity, the card
It lock section can be mobile to cavity.
10. a kind of quick coupling with overflow valve function according to claim 1 or 8, it is characterised in that: the high pressure
End inner cavity is additionally provided with sealing ring and retaining ring, and the lock is located at the sealing ring and retaining ring outside portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257729.XA CN109973454B (en) | 2019-04-01 | 2019-04-01 | Quick-operation joint with overflow valve function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257729.XA CN109973454B (en) | 2019-04-01 | 2019-04-01 | Quick-operation joint with overflow valve function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973454A true CN109973454A (en) | 2019-07-05 |
| CN109973454B CN109973454B (en) | 2024-04-30 |
Family
ID=67082172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257729.XA Active CN109973454B (en) | 2019-04-01 | 2019-04-01 | Quick-operation joint with overflow valve function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973454B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202901348U (en) * | 2012-11-27 | 2013-04-24 | 慈溪市美源净水设备有限公司 | Ball valve with pressure relief function |
| CN210127985U (en) * | 2019-04-01 | 2020-03-06 | 临海市永恒汽配科技有限公司 | Quick connector with overflow valve function |
-
2019
- 2019-04-01 CN CN201910257729.XA patent/CN109973454B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202901348U (en) * | 2012-11-27 | 2013-04-24 | 慈溪市美源净水设备有限公司 | Ball valve with pressure relief function |
| CN210127985U (en) * | 2019-04-01 | 2020-03-06 | 临海市永恒汽配科技有限公司 | Quick connector with overflow valve function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109973454B (en) | 2024-04-30 |
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