CN215439664U - Antidrip device of antidrip vapor recovery system rifle - Google Patents
Antidrip device of antidrip vapor recovery system rifle Download PDFInfo
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- CN215439664U CN215439664U CN202120060477.4U CN202120060477U CN215439664U CN 215439664 U CN215439664 U CN 215439664U CN 202120060477 U CN202120060477 U CN 202120060477U CN 215439664 U CN215439664 U CN 215439664U
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Abstract
The anti-drip function of the anti-drip oil gas recovery refueling gun provided by the utility model is characterized in that a channel closing mechanism, namely the anti-drip mechanism, is additionally arranged at the front end part of the gun barrel through the idea of blocking an oil outlet channel midway, and then the anti-drip mechanism and the gun body are installed to form the whole refueling gun.
Description
Technical Field
The utility model relates to an oiling device, in particular to a drip-proof device of a drip-proof oil gas recovery gun.
Background
Most of automobile refueling and gas stations adopt a so-called self-sealing type oil gas recovery gun, and the type of the oil gas recovery gun has the function of automatically closing when an automobile oil tank is full. However, after the main valve of this type of fuel gun is closed and the fuel is stopped, because the main valve is located at a position behind the fuel gun body, the oil in the fuel gun body and the oil outlet pipe between the main valve and the oil outlet still flows out incompletely, at this time, the residual oil will continue to flow out along the oil outlet pipe until the residual oil in the fuel gun body and the oil outlet pipe flows out completely, otherwise, when the fuel gun pulls out of the oil tank, the residual oil in the fuel gun body and the oil outlet pipe will drip on the ground, which can cause inaccurate metering of the fuel dispenser and oil loss and environmental pollution. If it is required that the residual oil must be drained, the vehicle refueling process takes a long time, which is detrimental to the efficiency of the service station personnel and the associated gain of interest.
In the prior art, the oil gun is closed at the main valve and stops oiling according to the idea of blocking the oil outlet channel, a closing mechanism is added in the oil outlet channel between the oil gun body and the gun barrel, so that the oil outlet channel between the oil gun body and the gun barrel is shortened to achieve the effect of oil drip prevention, and thus, the oil guns used in the prior art are complex in structure, high in cost, low in production and assembly efficiency and the like, and production or assembly is not easy to operate and easily causes the drip prevention function to fail.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing the anti-dripping device of the anti-dripping oil gas recovery gun, which has the advantages of simple structure, good anti-dripping effect and easy operation.
In order to solve the technical problem, the utility model provides a drip-proof device of a drip-proof oil gas recovery gun, which comprises:
the gun body (2) comprises an inner cavity forming an oil-gas channel, and the inner cavity comprises a first inner cavity (A) and a second inner cavity (C);
the main valve is used for controlling the switch of the refueling passage, is arranged in a first inner cavity at the inlet end of the gun body and controls oil gas to enter a second inner cavity from the first inner cavity;
a handle mechanism controlling the opening and closing of the main valve;
its characterized in that still including setting up the front end at the rifle body and being used for controlling the oil gas of second inner chamber gets into oil pipe's antidrip mechanism from oil gas output port, antidrip mechanism includes:
the auxiliary valve seat is arranged on the outer side of the oil-gas output port and is connected with the inner wall of the front end of the gun body;
an auxiliary valve core; the auxiliary valve core is movably connected relative to the auxiliary valve seat along the oil gas inlet and outlet direction so as to be convenient for closing and opening the oil gas outlet port; and
and when oil is added, the pressure oil gas overcomes the elasticity of the auxiliary valve core return spring to push the auxiliary valve core to move in the direction away from the oil gas output port, so that the oil gas output port is opened.
The oil gas outlet is communicated with the oil pipe through a second inner cavity, and the oil gas outlet is communicated with the oil pipe through a second inner cavity.
Further, the outer shape of the sub-valve core is tapered, and the corresponding inner wall that engages with the sub-valve core is also tapered, so that a sealing engagement is easily formed.
Still further, the auxiliary valve seat is connected with the inner wall of the front end of the gun body in a sealing mode.
Furthermore, an opening is arranged above the gun body, and a sealing upper cover which can be opened and closed is arranged above the opening.
Furthermore, the auxiliary valve seat is detachably connected with the inner wall of the front end of the gun body.
Still further, the auxiliary valve seat is detachably connected with the inner wall of the front end of the gun body through threads.
The anti-leakage function of the anti-leakage oil gas recovery refueling gun provided by the utility model is characterized in that a channel closing mechanism, namely the anti-leakage mechanism, is additionally arranged at the front end part of the gun barrel through the idea of blocking an oil outlet channel midway, and then the anti-leakage mechanism and the gun body are installed to form the whole refueling gun.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the anti-drip oil gas recovery refueling gun of the present invention.
FIG. 2 is an enlarged view of the drip resistant mechanism of the drip resistant vapor recovery nozzle of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
Referring to fig. 1, the anti-drip oil gas recovery refueling gun provided by the utility model comprises a gun body 2, a main valve 1 arranged in the gun body 2, and an anti-drip mechanism 100 arranged at the front end of the gun body 2 and used for controlling an oil way. The main valve 1 controls the oil filling channel switch, which is arranged in the first inner cavity A at the inlet end of the gun body 2 and controls the oil gas to enter the second inner cavity B from the first inner cavity A
The main flow passage of the gun body 2 is composed of a first inner cavity A and a second inner cavity C, pressure oil after an oil pump of the oiling machine is started enters the second inner cavity C from the first inner cavity A through a main valve 1, enters an oil pipe 32 through an anti-leakage mechanism 100 and then enters an oil tank of an oiled automobile.
The main valve 1 includes a main valve seat 4 disposed at the main oil outlet, a main valve seal ring 41, and a main valve seat return spring 3 for returning the main valve seat 4. The main valve seal seat 4 is provided with an intake valve body 23 and an intake valve body return spring 24 for returning the intake valve body.
In the second inner cavity C, there are a piston 17 and a piston sleeve 16 for pushing the main valve sealing seat 4 to move right to open the main valve 1, one end of the piston 17 is arranged in the piston sleeve 16, the other end of the piston 17 is connected with a piston driving rod 21, a groove 211 of the piston driving rod 21 is connected with a handle 18 through a handle connecting rod 19, and a piston return spring 22 is arranged in the piston sleeve 16 for returning the piston driving rod 21 to left after pushing the main valve sealing seat 4. Piston 17 is limited in distance to move left and right by piston locating pin 39. The flow tooth 33 can be hung on a different catch pin 34.
An opening 51 is provided above the gun body 2, and an upper cover 5 is provided above the opening. The upper cover 5 is openable and closable and can seal the opening 51. a corresponding control part may be additionally installed in the opening 51. Of course, the upper cover 5 may be integrated with the gun body 2.
The drip-proof mechanism 100 is arranged at the front end of the gun body 2, i.e. between the fuel filler barrel 32 and the outlet of the first chamber C, and is connected at one end to the fuel line 30 and at the other end to the fuel/air outlet port 101 of the second chamber C, so that it can directly control the fuel/air flow in and out of the fuel line 30 in the barrel 32. In the present embodiment, the anti-drip valve mechanism 100 includes a sub valve seat 29, a sub valve body 26, and a sub valve body 25, and the sub valve body 25 is disposed at the outlet and is hermetically connected to the inner wall of the oil and gas outlet port 101 of the gun body 2 by a seal 255. The sub-valve body 25 is hollow, and a passage 253 for communicating the second chamber C with the oil pipe 30 is provided in the middle. The sub valve body 25 can also be connected with the oil gas output port 101 of the gun body 2 into an integral structure.
The sub valve seat 29 is provided outside the oil and gas output port 101 and is detachably connected to the inner wall 254 of the front end of the gun body 2 by a screw.
The secondary valve core 26 is movably connected with the secondary valve seat 29 along the oil gas inlet and outlet direction, so that the pressure oil gas coming out of the first inner cavity C enters to push the secondary valve core 26 to move towards the oil pipe 30, and the oil gas output port 101 is opened. In the present embodiment, the shafts extended by the auxiliary spool 26 are inserted into the inner cavity of the auxiliary valve seat 29 to be movably (slidably) connected to each other.
An auxiliary valve core 26 is arranged at the outlet of the first inner cavity C, an auxiliary valve body 25 and the auxiliary valve core 26 form a valve mechanism, an auxiliary valve core return spring 27 is used for returning the auxiliary valve core 26, one end of the auxiliary valve core return spring 27 is connected with an auxiliary valve seat 29, the other end is connected with the auxiliary valve core 26, when the secondary spool 26 receives the pressure oil from the first chamber C, the secondary spool 26 is pushed to the left (in the direction of the barrel 32), the secondary spool return spring 27 is compressed, and the drip proof valve mechanism 100 is opened, when the fuel pump is closed, the pressure of the pressure oil from the inner cavity C becomes too small to overcome the elastic force of the auxiliary valve core return spring 27, the auxiliary valve core return spring 27 returns to push the auxiliary valve core 26 rightwards, so that the sub-valve spool 26 is in sealing engagement with the sub-valve body 25, the passage 253 is closed, and the oil gas output port 101 is closed, that is, the anti-drip valve mechanism 100 is closed.
Referring again to fig. 1 and 2, it can be seen from the above description that when the oil gun is in oil filling operation, the handle 18 is opened, so that the piston 16 pushes the main valve 1 to open, and due to the pressure of oil and gas, the main valve 1 of the anti-drip mechanism 100 is also opened, so that oil filling can be performed. When the refueling is completed and the refueling pump is closed, the handle 18 is released, the piston 16 does not push the main valve 1 any more, at this time, the main valve 1 is closed, and at this time, because the oil pressure becomes small and cannot overcome the elastic force of the auxiliary valve core return spring 27, the auxiliary valve core return spring 27 returns to push the auxiliary valve core 26 rightward, so that the auxiliary valve core 26 and the auxiliary valve body 25 are closed, and the anti-dripping mechanism 100 is closed, so that it can be seen that two seals of the pressure oil channel in the gun body 2 are closed, the contact distance between the pressure oil and the outside when only one seal is at the main valve 1 is provided is greatly shortened, and after the anti-dripping valve mechanism 100 is used as the second seal (namely formed by the auxiliary valve body 25 and the auxiliary valve core 26), the contact distance between the pressure oil and the outside is only the distance from the auxiliary valve seat 29 to the oil outlet 28, and the distance is equivalent to the length of the oil pipe 30, thus achieving a better anti-dripping function.
Through the above description, the anti-dripping function of the present invention is substantially by adopting the idea of blocking the oil outlet channel midway, adding a channel closing mechanism at the front end of the barrel 32, namely the anti-dripping valve mechanism 100, and then installing the gun body 2 to form the whole oil gun, when the main valve of the oil gun is closed and stops oil filling, the anti-dripping mechanism 100 at the end of the barrel 32 is also closed randomly, which greatly shortens the distance between the oil channel and the outside, achieves the anti-dripping function of the oil product, and can smoothly open the channel due to the action of the pressure oil during oil filling (the closing mechanism is opened along the direction of the pressure oil outlet, and the pressure oil disappears and is also closed randomly), without affecting the smoothness of the original oil channel, and the structure is simple and the installation is convenient.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an antidrip device of antidrip vapor recovery system rifle, it includes:
the gun body (2) comprises an inner cavity forming an oil-gas channel, and the inner cavity comprises a first inner cavity (A) and a second inner cavity (C);
the main valve (1) is used for controlling the opening and closing of the refueling passage, is arranged in a first inner cavity (A) at the inlet end of the gun body (2), and controls oil gas to enter a second inner cavity (B) from the first inner cavity (A);
a handle mechanism controlling the opening and closing of the main valve (1);
the anti-dripping and anti-leaking device is characterized by further comprising an anti-dripping mechanism (100) which is arranged at the front end of the gun body (2) and used for controlling oil gas in the second inner cavity to enter the oil pipe (30) from an oil gas outlet port (101), wherein the anti-dripping mechanism (100) comprises:
the auxiliary valve seat (29) is arranged on the outer side of the oil-gas output port (101) and is connected with the inner wall (254) at the front end of the gun body (2);
a secondary valve spool (26); the auxiliary valve core (26) is movably connected relative to the auxiliary valve seat (29) along the oil gas inlet and outlet direction so that the auxiliary valve core (26) can close and open the oil gas outlet port (101); and
and the auxiliary valve core return spring (27) is used for returning, when the oil pressure of refueling is lower than a set value, the elastic force of the auxiliary valve core return spring (27) can enable the auxiliary valve core (26) to move towards the oil-gas output port (101) to close the oil-gas output port (101), and when refueling is performed, the pressure oil gas overcomes the elastic force of the auxiliary valve core return spring (27) to push the auxiliary valve core (26) to move towards the direction away from the oil-gas output port (101), so that the oil-gas output port (101) is opened.
2. The anti-dripping device of the anti-dripping oil gas recovery gun according to claim 1, further comprising an auxiliary valve body (25) arranged at the oil gas output port (101) and hermetically connected with the inner wall of the gun body (2) of the oil gas output port (101) through a seal (255), wherein the auxiliary valve body (25) is hollow, a passage (253) for communicating the second inner cavity (C) with the oil pipe (30) is arranged in the middle of the auxiliary valve body, and the auxiliary valve core (26) closes the passage (253) under the elastic force of an auxiliary valve core return spring (27).
3. An anti-drip device for an anti-drip oil and gas recovery gun as claimed in claim 2, characterized in that said secondary spool (26) is conical in shape and the corresponding inner wall (254) engaging said secondary spool (26) is also conical to facilitate a sealing engagement.
4. An anti-drip device for an anti-drip oil and gas recovery gun according to claim 2, characterized in that said secondary valve seat (29) is sealingly connected to the inner wall of the front end of said gun body (2).
5. An anti-drip device for an anti-drip oil and gas recovery gun according to claim 1, characterized in that an opening (51) is provided above said gun body (2), and a sealing upper cover (5) which can be opened and closed is provided above said opening (51).
6. An anti-drip device for an anti-drip oil and gas recovery gun according to claim 1, characterized in that said secondary valve seat (29) is removably connected to the inner wall (254) of the front end of said gun body (2).
7. An anti-drip device for an anti-drip oil and gas recovery gun as claimed in claim 1, characterized in that said secondary valve seat (29) is removably connected by means of a screw thread to the inner wall (254) of the front end of said gun body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120060477.4U CN215439664U (en) | 2021-01-11 | 2021-01-11 | Antidrip device of antidrip vapor recovery system rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120060477.4U CN215439664U (en) | 2021-01-11 | 2021-01-11 | Antidrip device of antidrip vapor recovery system rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215439664U true CN215439664U (en) | 2022-01-07 |
Family
ID=79681942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120060477.4U Active CN215439664U (en) | 2021-01-11 | 2021-01-11 | Antidrip device of antidrip vapor recovery system rifle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215439664U (en) |
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2021
- 2021-01-11 CN CN202120060477.4U patent/CN215439664U/en active Active
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