CN214456801U - Foam-free self-sealing oil gun - Google Patents
Foam-free self-sealing oil gun Download PDFInfo
- Publication number
- CN214456801U CN214456801U CN202023036715.2U CN202023036715U CN214456801U CN 214456801 U CN214456801 U CN 214456801U CN 202023036715 U CN202023036715 U CN 202023036715U CN 214456801 U CN214456801 U CN 214456801U
- Authority
- CN
- China
- Prior art keywords
- oil
- self
- gun body
- sealing
- outlet pipe
- 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
Images
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a foam-free self-sealing oil gun, which comprises a main valve, a self-sealing mechanism, a gun body, a handle assembly, an oil outlet pipe fitting, an auxiliary valve, a negative pressure pipe and the like, wherein the main valve, the self-sealing mechanism and the auxiliary valve are all arranged in the gun body, the negative pressure pipe is arranged in the oil outlet pipe fitting, the oil outlet pipe fitting is arranged at the front end of the gun body, a communication pipeline is arranged between the oil outlet pipe fitting and the gun body and is communicated with the gun body and the oil outlet pipe fitting, and the communication pipeline is communicated with the negative pressure pipe. According to the invention, the connecting structure between the gun body and the oil outlet pipe fitting is provided with the communicating pipeline for communicating the internal chambers of the gun body and the oil outlet pipe fitting, so that the pressure balance function and the structural characteristics of the communicating pipeline are fully utilized, the generation amount of oil foam in the oil filling gun during oil filling is effectively reduced, and foam-free oil filling is realized as much as possible.
Description
Technical Field
The invention relates to the technical field of refueling equipment, in particular to a self-sealing type refueling gun capable of realizing foamless refueling.
Background
The fuel gun is the terminal for the fuel dispenser output in the service station, i.e. the part that touches the vehicle's fuel tank. The self-sealing oiling is a kind of common variety at present. The nozzle is including handle assembly, rifle body and oil pipe spare, and the rifle body communicates with passing through the switching cover between the oil pipe spare, and internal main valve, the mechanism of proclaiming oneself of setting up of rifle are used for controlling passing through of fluid, and the rifle body then sets up the export that the auxiliary valve is used for controlling fluid with the intercommunication department of oil pipe spare.
After the oil gun is started, the handle assembly of the oil gun is opened, and oil passes through the main valve hole, the auxiliary valve and the oil outlet pipe fitting and is output. When oil is added, oil liquid flows through the venturi tube quickly, a low-pressure area is formed in a sealing cavity between the venturi tube and the auxiliary valve seat, one path of the low-pressure area passes through a negative pressure tube to reach an air nozzle at the front end of the gun barrel, and the other path of the low-pressure area directly reaches the self-sealing mechanism. Once the oil (or the foam generated by the oil) submerges the negative pressure pipe, the self-sealing mechanism closes the oil gun and stops supplying oil.
Therefore, in the oiling process, when excessive oil foam is generated in the oil liquid conveying process, the frequent gun jumping of the oiling gun is easily caused, and the oiling process is influenced.
Based on this, the present application is proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a foam-free self-sealing oil gun, which solves the existing problem that the self-sealing oil gun in the prior art is easy to foam, reduces oil foam generated in the conveying process as much as possible and avoids overlarge influence on the oil filling process.
In order to realize the purpose, the foam-free self-sealing oil gun has the following structure: the disclosed device is provided with:
a main valve which is opened by an opening valve lever therein to allow the fuel oil to flow therethrough;
a self-sealing mechanism for releasing the engagement between the valve seat of the main valve and the open valve rod to stop the refueling when the liquid level in the tank to be refueled is sealed;
a gun body having the main valve and the self-sealing mechanism;
the handle assembly is used for controlling the opening valve rod and the self-sealing mechanism to open;
the oil outlet pipe fitting is arranged at the front end of the gun body and is used for connecting an oil tank to be oiled with the gun body;
the negative pressure pipe is arranged in the oil outlet pipe fitting and is used for communicating the self-sealing mechanism with an oil tank to be refueled;
the auxiliary valve is arranged between the oil outlet pipe fitting and the gun body and used for controlling the circulation of fuel oil;
the communicating pipeline is used for communicating the gun body and the oil outlet pipe fitting and communicated with the negative pressure pipe.
Through the technical scheme, after the handle assembly controls the self-sealing mechanism and the main valve to be opened, the oil is filled in the main cavity of the gun body, the sealing piston in the auxiliary valve is pushed open, the auxiliary valve is forced to be opened, and the oil enters the oil outlet pipe fitting. In this process, because the existence of communicating pipe, some fluid can discharge and relieve pressure earlier through communicating pipe in advance to slow down in the moment that the auxiliary valve is opened and the fluid velocity of flow of opening the in-process, avoid producing the oil foam because of high-speed oil outlet causes in the oil pipe spare, influence the oil quality.
Meanwhile, the communicating pipeline is communicated with the negative pressure pipe, so that in the refueling process, certain negative pressure is generated by suction force generated when oil in the communicating pipeline flows, and the negative pressure in a low-pressure area and the negative pressure pipe of the self-sealing mechanism is enhanced.
The invention further provides the following: the diameter of the communicating pipeline is not more than 1mm, the gun body and the oil outlet pipe fitting are kept in a micro-conduction state, and meanwhile, oil leakage can be prevented when the main valve and the auxiliary valve are both in a turn-off state through the communicating pipeline.
The invention further provides the following: the communicating pipeline has a certain length in the gun body, so that the speed of oil flowing out through the communicating pipeline is prolonged, the phenomenon that the oil is mixed with air at the tail end of the convex pipe to generate foam is avoided, and the generation of oil foam is further reduced. Secondly, utilize the existence of this communicating pipe way, alleviated the mutual squeezing action of fluid in the oil pipe spare, and then reduced the production of oil foam. In order to ensure the above effect, the length range is not less than 5mm, and 1CM to 5CM is preferable in consideration of convenience of actual installation and processing.
The invention further provides the following: the diameters of the communication pipelines are consistent, so that the communication pipelines are convenient to process on one hand, and are also beneficial to realizing communication under small pipe diameters or micro-pipe diameters on the other hand.
The invention further provides the following: the communicating pipeline is arranged on the adapter sleeve between the oil outlet pipe fitting and the gun body; to this end, the adaptor sleeve is provided with a protruding pipe arranged axially towards one side of the oil outlet pipe fitting and/or the gun body, and the communication pipeline is arranged in the protruding pipe. The technical scheme has the advantages of simple structure, convenient realization and convenient maintenance.
The invention further provides the following: the convex pipe is with the coupling part thickening design of switching cover, through the thickening design, can strengthen the structural strength of convex pipe on the one hand, prevent its rupture, and on the other hand, the thickening part can be used to overlap and establish the spring or set up the route, kills two birds with one stone.
The invention further provides the following: and a through hole is formed in the sealing piston of the auxiliary valve, and the through hole is communicated with the communication pipeline or the communication pipeline penetrates through the through hole to be communicated with the gun body. The technical scheme has the advantages of simple structure, convenient realization and maintenance and good effect.
The invention further provides the following: the communication pipeline penetrates out of the through hole; preferably, the length of the communication pipeline which penetrates out of the sealing piston of the auxiliary valve is not less than 0.2 mm.
According to the technical scheme, assembly is facilitated; and secondly, the sealing piston can also move by taking the convex pipe as a shaft, so that the moving path of the sealing piston is limited, and the performance of the auxiliary valve is improved. And thirdly, the two sides are further ensured to be in a good conduction state, so that the pressure balance is favorably kept, and the generation of oil foam is reduced.
The invention further provides the following: an inclined hole is formed in the adapter sleeve, one end of the inclined hole is communicated with the communicating pipeline, and the other end of the inclined hole is opened on the outer side wall of the adapter sleeve; one end of the negative pressure tube communicated with the self-sealing mechanism is connected to the inclined hole.
The invention has the following beneficial effects:
according to the invention, the connecting structure between the gun body and the oil outlet pipe fitting is provided with the communicating pipeline for communicating the internal chambers of the gun body and the oil outlet pipe fitting, so that the pressure balance function and the structural characteristics of the communicating pipeline are fully utilized, the generation amount of oil foam in the oil filling gun during oil filling is effectively reduced, and foam-free oil filling is realized as much as possible.
The communicating pipeline has the advantages of simple structure, ingenious design, convenient processing and assembly, convenient maintenance and inspection, and suitability for practical use.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of an embodiment of the present invention.
Reference numerals: 1-oil outlet pipe fitting, 2-leather sheath, 3-gun body, 4-self-sealing mechanism, 5-main valve, 6-rivet, 7-gun stock, 8-gear rivet, 9-gear, 10-handle component, 11-connecting pin shaft, 12-internal tooth elastic retainer ring, 13-pan head screw, 14-external tooth elastic retainer ring, 15-negative pressure pipe, 16-switching sleeve;
101-oil outlet cavity, 301-oil passing cavity, 1600-communication pipeline, 1601-boss pipe I, 1602-boss pipe II, 1603-inclined hole, 1601 a-boss, 1701-valve seat, 1702-sealing piston, 1703-spring.
Detailed Description
The invention provides a foam-free self-sealing oil gun, which is provided with a gun body 3, an oil outlet pipe fitting 1 and a handle assembly 10, wherein the oil outlet pipe fitting 1 is arranged at the front end of the gun body 3 and is connected with the gun body 3 through a adapter sleeve 16, a main valve 5, an auxiliary valve, a self-sealing mechanism 4 and other parts are arranged in the gun body 3, and the handle assembly 10 is linked with the main valve 5 and a control part of the self-sealing mechanism 4, namely an opening valve rod and a self-control rod, and is used for controlling the circulation of oil. When the oil is added, the handle is buckled, the valve opening rod and the automatic control rod are stressed to drive the sealing element to be separated from the valve seat, and the valve opening conduction is realized. The oil enters the oil passing cavity 301, the sealing piston 1702 of the auxiliary valve which is a check valve plug capable of automatically resetting is pushed open, the oil enters the oil outlet pipe fitting 1 through the valve seat 1701 of the auxiliary valve, in the process, the high-speed and high-pressure oil is mixed with air when passing through the oil passing cavity 301 and the valve seat 1701 of the auxiliary valve, and the added oil contains air bubbles, namely, the so-called bubble refueling.
According to the invention, the communicating pipeline 1600 is designed between the oil passing cavity 301 and the oil outlet cavity 101 to enable the oil passing cavity 301 and the oil outlet cavity 101 to be communicated, when oil enters the oil passing cavity 301, gas in the oil passing cavity 301 is extruded and discharged through the communicating pipeline 1600, and further, the oil and air are prevented from being mixed to form foam. And when oil enters the oil outlet pipe fitting 1 through the auxiliary valve, a small amount of oil can flow out through the communication pipeline 1600, so that the overhigh flow speed and pressure when the oil passes through the valve seat 1701 of the auxiliary valve can be reduced, and the oil can be added with little foam or even no foam.
The structure will be described in detail with reference to examples.
the gun body 3 is provided with a main valve 5 and a self-sealing mechanism 4, the main valve 5 is positioned at an oil inlet channel which is arranged at the rear side of the gun body 3 and is communicated with the oiling machine, and the self-sealing mechanism 4 is arranged in an oil passing cavity 301 in the middle of the gun body 3;
a handle assembly 10 for controlling the opening of the main valve 5 and the self-sealing mechanism 4;
and the oil outlet pipe fitting 1 is positioned on the front side of the gun body 3, the oil outlet pipe fitting 1 is in sealing connection with the gun body 3 through the adapter sleeve 16 and is used for connecting an oil tank to be refueled with the gun body 3, and a secondary valve can be arranged at the position for preventing the oil liquid in the oil passing cavity 301 in the gun body 3 from flowing out after the main valve 5 is closed.
The main valve 5 includes a sealing element, a valve seat 1701, a spring 1703 and a valve opening rod, wherein the sealing element is movably matched with the valve seat 1701 in a sealing manner, the spring 1703 is arranged between the sealing element and the inner wall of the gun body 3 and is used for enabling the sealing element to be always abutted against the valve seat 1701, one end of the valve opening rod is linked with the reverse fixation of the sealing element, the other end of the valve opening rod extends to the outside and is linked with the handle assembly 10, and the valve opening rod can be controlled to move through the handle assembly 10 to enable the sealing element to be separated from the valve seat 1701 and allow fuel oil to flow.
The self-sealing mechanism 4 is used for sealing the liquid level in the oil tank to be refueled, and comprises a spring 1703, a steel ball, a self-control rod, a diaphragm and other components, wherein the self-control rod is linked with the handle assembly 10 through a connecting pin 1111 and an internal tooth elastic retainer ring 12 and the like, so that the joint state of a sealing piece of the main valve 5 and an opening valve rod is released under the pressure unbalance state, and the refueling is stopped.
Wherein, be equipped with negative pressure pipe 15 in the oil outlet pipe fitting 1, the one end setting of negative pressure pipe 15 is on the front end of oil outlet pipe fitting 1, and the other end stretches into to the switching cover 16 inboard, has the clearance between the outer wall of switching cover 16 and the rifle body 3 inner wall, and through a passageway intercommunication between this clearance and the pneumatic chamber of proclaiming oneself the mechanism 4. Thus, the self-sealing mechanism 4 is triggered to operate at the first time when the tank to be filled is full of oil.
The secondary valve includes a valve seat 1701 fixedly disposed in the gun body 3 and blocking the oil passing chamber 301 and the front end of the gun body 3, a sealing piston 1702 movably fitted with the valve seat 1701, and a spring 1703 urging the sealing piston 1702 against the valve seat 1701.
As shown in fig. 2, in this embodiment, the adapter sleeve 16 and the auxiliary valve are coaxially disposed and adjacent to each other, one end of the adapter sleeve 16 is opposite to the auxiliary valve, and the other end is opposite to the oil outlet pipe fitting 1, in order to overcome the problem of foaming inside the fueling gun during fueling, a communicating pipeline 1600 is disposed in the valve seat 1701 between the adapter sleeve 16 and the auxiliary valve: the adapter sleeve 16 is provided with a convex pipe I1601 and a convex pipe II 1602 which are protruded from the end faces of the two sides of the auxiliary valve and the oil outlet pipe fitting 1, the convex pipe I1601 and the convex pipe II 1602 are arranged along the axial direction of the adapter sleeve 16, and axial through holes are formed in the convex pipe I1601 and the convex pipe II 1602 and communicated with each other; the diameter of the communication conduit 1600 is preferably uniform for ease of manufacture. Of course, to avoid oil leakage, the diameter of the communication conduit 1600 does not exceed 1 mm.
The valve seat 1701 of the auxiliary valve is provided with a coaxial through hole, the diameter of the through hole is matched with the outer diameter of the convex pipe two 1602, the convex pipe two 1602 can be inserted into the through hole and penetrate out of the outer side of the auxiliary valve to the oil passing cavity 301, and preferably, the length of the sealing piston 1702 of the communication pipeline 1600 penetrating out of the auxiliary valve is not less than 0.2 mm. One end of the spring 1703 in the secondary valve is sleeved on the outer periphery of the protruding tube II 1602, and the other end abuts against the sealing piston 1702. For this purpose, a groove structure or a protruding structure may be disposed on the end surface of the adapter sleeve 16 facing the auxiliary valve for sleeving and fixing the spring 1703.
By means of the communication pipeline 1600, the communication pipeline 1600 communicates the oil passing cavity 301 with the oil outlet cavity 101, so that the cavities on the two sides of the auxiliary valve are communicated with each other through the communication pipeline 1600 formed by the through holes in the first protruding pipe 1601 and the second protruding pipe 1602 to achieve ventilation and oil passing. Therefore, in the oiling process, the oil foam generated in the oiling gun can be effectively reduced, and the oiling quality and effect are improved.
In addition, in other embodiments, in order to further enhance the oil filling effect without foam or even with less foam, the communicating pipeline 1600 may be formed with a certain length in the portion of the gun body 3, i.e. the protruding pipe 1601, the length range is not less than 5mm, preferably 1CM to 5 CM.
Embodiment 2 in this embodiment, the negative pressure tube 15 extends into the adapter sleeve 16 to be connected with the adapter sleeve 16, and then the inclined hole 1603 formed in the adapter sleeve 16 communicates the opening at the other end of the negative pressure tube 15 with the gap between the outer wall of the adapter sleeve 16 and the inner wall of the oil outlet pipe 1 or the gun body 3, and finally the negative pressure tube 15 communicates with the cavity in the self-sealing mechanism 4 through the air inlet channel in the cavity, so that the self-sealing mechanism 4 communicates with the oil tank to be refueled.
This example differs from example 1 in that: the inclined hole 1603 is simultaneously communicated with through holes in the convex pipe I1601 and the convex pipe II 1602, namely the inclined hole 1603 is simultaneously communicated with the communication pipeline 1600 and the negative pressure pipe 15.
Embodiment 4 this embodiment differs from the previous embodiments in the fitting relationship of the second protruding tube 1602 to the leading through hole in the sealing piston 1702 of the secondary valve: in this embodiment, the end of the second protruding tube 1602 facing the sealing piston 1702 is inserted into the through hole, and the end of the second protruding tube 1602 does not protrude out of the sealing piston 1702.
Example 5 this embodiment differs from the previous embodiments in the fitting relationship of the second protruding tube 1602 to the leading through hole in the sealing piston 1702 of the secondary valve: in this embodiment, the end of the male pipe 1602 facing the sealing piston 1702 is opposite to the leading hole, i.e. the side opening of the connecting channel 1600 is in butt joint with the leading hole. However, compared with the embodiment in which the second protruding tube 1602 is inserted into the via hole, the requirement on the processing technology and the assembly precision of the second protruding tube 16202 is higher, otherwise, the defect of easy oil leakage exists.
In summary, in the present embodiment, the communicating pipeline 1600 connected through the oil chamber 301 and the oil outlet chamber 101 is provided, so that the two chambers are communicated and balanced, the generation of foam in the oil filling process is effectively reduced, and the oil filling quality is improved.
Claims (9)
1. The utility model provides a no foam self-sealing nozzle which characterized in that: the disclosed device is provided with:
a main valve which is opened by an opening valve lever therein to allow the fuel oil to flow therethrough;
a self-sealing mechanism for releasing the engagement between the valve seat of the main valve and the open valve rod to stop the refueling when the liquid level in the tank to be refueled is sealed;
a gun body having the main valve and the self-sealing mechanism;
the handle assembly is used for controlling the opening valve rod and the self-sealing mechanism to open;
the oil outlet pipe fitting is arranged at the front end of the gun body and is used for connecting an oil tank to be oiled with the gun body;
the negative pressure pipe is arranged in the oil outlet pipe fitting and is used for communicating the self-sealing mechanism with an oil tank to be refueled;
the auxiliary valve is arranged between the oil outlet pipe fitting and the gun body and used for controlling the circulation of fuel oil;
the communicating pipeline is used for communicating the gun body and the oil outlet pipe fitting and communicated with the negative pressure pipe.
2. The foamless self-sealing fuel nozzle of claim 1, wherein: the diameter of the communication pipeline is not more than 1 mm.
3. The foamless self-sealing fuel nozzle of claim 1, wherein: the length of the communicating pipeline on the gun body is not less than 5 mm;
or the length of the communicating pipeline between the gun body and the communicating pipeline is 1 cm-5 cm.
4. The foamless self-sealing fuel nozzle of claim 1, wherein: the diameters of the communicating pipelines are consistent.
5. The foamless self-sealing fuel nozzle of claim 1, wherein: the communicating pipeline is arranged on the adapter sleeve between the oil outlet pipe fitting and the gun body; to this end, the adaptor sleeve is provided with a protruding pipe arranged axially towards one side of the oil outlet pipe fitting and/or the gun body, and the communication pipeline is arranged in the protruding pipe.
6. The foamless self-sealing fuel nozzle of claim 5, wherein: the connecting part of the convex pipe and the adapter sleeve is thickened.
7. The foamless self-sealing fuel nozzle of claim 1, wherein: and a through hole is formed in the sealing piston of the auxiliary valve, and the through hole is communicated with the communication pipeline or the communication pipeline penetrates through the through hole to be communicated with the gun body.
8. The foamless self-sealing fuel nozzle of claim 7, wherein: the communication pipeline penetrates out of the through hole; or the communication pipeline penetrates out of the through hole, and the length of the sealing piston of the auxiliary valve, which penetrates out of the communication pipeline, is not less than 0.2 mm.
9. The foamless self-sealing fuel nozzle of claim 5, wherein: the adapter sleeve is internally provided with an inclined hole, one end of the inclined hole is communicated with the communicating pipeline, and the other end of the inclined hole is opened on the outer side wall of the adapter sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023036715.2U CN214456801U (en) | 2020-12-16 | 2020-12-16 | Foam-free self-sealing oil gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023036715.2U CN214456801U (en) | 2020-12-16 | 2020-12-16 | Foam-free self-sealing oil gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214456801U true CN214456801U (en) | 2021-10-22 |
Family
ID=78189330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023036715.2U Active CN214456801U (en) | 2020-12-16 | 2020-12-16 | Foam-free self-sealing oil gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214456801U (en) |
-
2020
- 2020-12-16 CN CN202023036715.2U patent/CN214456801U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017210599B2 (en) | Non-pressurized fluid level shutoff for fuel tank | |
| CN112678761A (en) | Foam-free self-sealing oil gun | |
| CN112197018A (en) | Valve for self-adaptively adjusting ventilation mode of aero-engine | |
| CN214456801U (en) | Foam-free self-sealing oil gun | |
| CN102442629B (en) | Bleeder valve | |
| US8662118B2 (en) | Liquid filling system | |
| CN214936028U (en) | Negative pressure pipe for oil gun and oil gun | |
| CN105485397A (en) | Electromagnetic valve for regulating gas flow | |
| CN103072936A (en) | Self-sealing oil gun with high performance | |
| CN205350514U (en) | Spout solenoid valve for rail | |
| CN210050554U (en) | Oil atomizer with function of refueling without stopping gas | |
| CN107470050B (en) | Spray gun with cooling effect for desulfurization and denitrification | |
| CN210290321U (en) | Electromagnetic overflow valve | |
| CN218030412U (en) | Oil-gas separation device in diesel engine system | |
| CN210106849U (en) | Hydraulic pipe joint | |
| CN212024760U (en) | Automatic oiling nozzle and automatic oiling machine | |
| CN220999236U (en) | Adapter sleeve structure for foamless oil gun | |
| CN214789205U (en) | Pneumatic three-way stop valve for large diaphragm pump | |
| CN213711200U (en) | Negative pressure type carburetor type gasoline engine oil supply mechanism | |
| CN215902587U (en) | Pipe bender lubricating oil mist supply device and pipe bender | |
| CN110043782B (en) | Oil atomizer with function of filling oil without stopping gas | |
| RU2015701C1 (en) | Hydrovacuum mixing system for liquid components | |
| CN114234181B (en) | Fuel oil atomizing device for pressure atomizing burner | |
| CN219708987U (en) | Drip-proof pipe joint | |
| CN210107015U (en) | Practical oil storage cylinder structure of oil atomizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |