CN212832820U

CN212832820U - Oil gun with self-sealing cover

Info

Publication number: CN212832820U
Application number: CN202021818688.1U
Authority: CN
Inventors: 叶益松; 林迁和
Original assignee: Zhejiang Tonglian Petroleum Machinery Co ltd
Current assignee: Zhejiang Tonglian Petroleum Machinery Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-30
Anticipated expiration: 2030-08-26

Abstract

The utility model provides a nozzle with self-sealing cover, including the rifle body and self-sealing assembly, the rifle body is equipped with independent detachable self-sealing cover, self-sealing cover includes base and the bellied casing relative to the base, the base is connected with the rifle body, be equipped with oil circuit passageway, gas circuit passageway and the first cavity and the second cavity of vertical intercommunication in the casing; the self-sealing assembly comprises an oil pressure driving piston, a base and a diaphragm assembly, when the self-sealing assembly is arranged in the self-sealing cover, the oil pressure driving piston is positioned in the first cavity, and an oil pressure chamber is formed between the oil pressure driving piston and the inner wall of the shell; the base and the diaphragm assembly are located in the second cavity, and a pneumatic chamber is formed between the diaphragm assembly and the oil pressure driving piston. The utility model discloses a preparation is more simple and convenient, can dismantle from the closing cap for the preparation of the nozzle body is more simple and convenient high-efficient, and the nozzle body is with proclaim oneself the cooperation between the subassembly more accurate, closely.

Description

Oil gun with self-sealing cover

Technical Field

The utility model relates to a fuel filling equipment technical field, concretely relates to nozzle with from closing cap.

Background

At present, most filling stations adopt self-sealing oil guns in order to automatically close oil passages when an automobile oil tank is full. The oil gun comprises a self-sealing assembly, wherein the self-sealing assembly is arranged in a gun body and needs to be matched with the gun body to form an oil pressure chamber and an air pressure chamber for pushing the self-sealing assembly to move, however, in the prior art, the gun body of the oil gun is usually manufactured by integral die casting, so that the manufacturing difficulty of a gun body casting is large, the preparation efficiency is low, the matching accuracy between the manufactured gun body and the self-sealing assembly is difficult to control, the tightness of the oil pressure chamber and the air pressure chamber is difficult to reach the standard, and the realization of the self-sealing function of the self-sealing assembly is influenced.

Therefore, how to design a nozzle with from closing cap, provide one kind preparation and assemble simpler, convenient, can with the rifle body separation from the closing cap for the preparation of nozzle rifle body is more simple and convenient, high-efficient, and the cooperation between the rifle body and the subassembly of proclaiming oneself is more accurate, inseparable, just becomes the problem that the field is urgent to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a nozzle with from closing cap is provided, it is simpler, convenient to provide a preparation and assembly, can with the rifle body separation from the closing cap for the preparation of the nozzle rifle body is more simple and convenient, high-efficient, the rifle body with proclaim oneself the cooperation between the subassembly more accurate, closely.

In order to solve the technical problem, the utility model discloses a following technical scheme: the fuel truck nozzle with the self-sealing cover comprises a gun body and the self-sealing assembly, wherein the gun body is provided with the self-sealing cover which is independently detachable, the self-sealing cover comprises a base and a shell protruding relative to the base, the base is connected with the gun body, and an oil passage, an air passage and a first cavity and a second cavity which are longitudinally communicated are arranged in the shell; the self-sealing assembly comprises an oil pressure driving piston, a base and a diaphragm assembly, the oil pressure driving piston is positioned in the first cavity, and an oil pressure chamber is formed between the oil pressure driving piston and the inner wall of the shell; the base and the diaphragm assembly are positioned in the second cavity, and a pneumatic chamber is formed between the diaphragm assembly and the oil pressure driving piston; the oil path channel is communicated with the oil pressure chamber, and the gas path channel is communicated with the gas pressure chamber.

Preferably, a limiting groove is formed in the first cavity, a check ring is arranged in the limiting groove, and the check ring is arranged between the oil pressure driving piston and the base to enable the oil pressure driving piston to be limited in the first cavity to longitudinally slide.

Preferably, the base is provided with a through hole, and the through hole enables the air pressure chamber to be communicated with the air channel.

Preferably, the shell comprises a cavity shell including a first cavity and a second cavity, and a reinforcing rib is arranged between the upper surface of the base and the outer side wall of the cavity shell.

Preferably, one side of the cavity shell extends outwards to form an oil path shell, the oil path channel is located in the oil path shell, and the oil path channel obliquely enters the first cavity from the base.

Preferably, the housing further comprises a gas path housing, the gas path channel is located in the gas path housing, the gas path channel comprises an oblique channel and a guide channel, the guide channel is longitudinally communicated with the second cavity, and the oblique channel is communicated with the guide channel from the base in an oblique manner.

Preferably, the base is provided with a connecting hole, and the gun body and the self-sealing cover are connected and fixed through a bolt penetrating through the connecting hole.

Preferably, one side of the base, which is connected with the gun body, is provided with an annular sealing groove, and a sealing element is arranged in the annular sealing groove.

Preferably, the self-sealing cover further comprises a connecting part, and the connecting part comprises a handle connecting pin and a first limiting block connected with the side wall of the handle connecting pin; the oil gun further comprises a handle assembly, the handle assembly penetrates through the handle connecting pin to be connected with the gun body, and a second limiting block matched with the first limiting block is arranged on the gun body, so that the handle assembly moves between the first limiting block and the second limiting block.

Preferably, the inner walls of the first and second cavities are smoothed.

Has the advantages that:

1. the utility model provides a nozzle with it is independent, detachable from closing cap, in prior art, the rifle body of nozzle adopts integral type structure die-casting to form more, but the preparation degree of difficulty of this kind of nozzle is big, and the preparation precision is low, and the cooperation between the rifle body and other functional parts in the nozzle is connected and is difficult to the accuracy and holds, leads to production efficiency to be difficult to improve, adopts the utility model provides a simple structure, preparation convenience, independent detachable from the closing cap can make alone and assemble from the closing cap, can also be when preparing from the closing cap and with from the subassembly of proclaiming oneself of closing cap matched with and process together, can effectively improve the preparation efficiency and the preparation quality of nozzle.

2. The utility model discloses set up the spacing groove that has the retaining ring in the first cavity of proclaiming oneself the lid, can be with rather than the complex from the motion range restriction that the subassembly got into the part of first cavity between retaining ring and first cavity top for it is inside that the subassembly setting is located first cavity all the time to proclaiming oneself, and separates first cavity and second cavity.

3. The utility model discloses a casing includes oil circuit casing and gas circuit casing, only need when the preparation along the direction of oil circuit casing and gas circuit casing drill out oil circuit passageway and gas circuit passageway can, easy operation is convenient.

4. The utility model provides a from the sealing cover set up the strengthening rib between cavity casing and base, can effectively strengthen the compressive capacity of cavity casing, prevent that the cavity casing from because of the internal pressure reinforcing bulging deformation, above-mentioned oil circuit casing and gas circuit casing also can play the effect of certain strengthening rib simultaneously.

5. The utility model provides a not only set up the connecting hole on the valve cover and be used for connecting the rifle body, still set up the handle components of connecting portion and nozzle and link to each other for accomplish the transmission between the handle components and the nozzle rifle body and be connected.

6. The utility model provides a from first cavity and the second cavity inner wall of closing cap all process smooth processing for can be in first cavity and second cavity nimble motion from the subassembly of proclaiming oneself rather than the complex, guarantee the sensitivity of device, reduce the wearing and tearing between the part, increase life.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the technical solutions in the prior art, the drawings required to be used in the technical solutions or the technical solutions in the prior art descriptions will be briefly introduced below, and 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 obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is a block diagram of a fuel gun with a self-sealing cover according to the present invention;

FIG. 2 is a cross-sectional view of a fuel gun with a self-sealing cap in accordance with the present invention;

FIG. 3 is a cross-sectional view of a self-sealing cap and a self-sealing assembly of a fuel gun with a self-sealing cap according to the present invention;

FIG. 4 is a diagram of the connection structure of the self-sealing cover and the self-sealing assembly in the fuel gun with the self-sealing cover according to the present invention;

FIG. 5 is a schematic diagram of a self-sealing cap of a fuel gun with a self-sealing cap according to the present invention;

FIG. 6 is a cross-sectional view of a self-sealing cap in a fuel gun with a self-sealing cap according to the present invention;

FIG. 7 is a schematic diagram of a self-sealing cap of a fuel gun with a self-sealing cap according to the present invention;

in the figure: the self-sealing type automatic control gun comprises a gun body 1, a self-sealing assembly 2, a 201 oil pressure driving piston, a 202 base, a 203 diaphragm assembly, a 3 self-sealing cover, a 4 base, a 401 connecting hole, a 402 annular sealing groove, a 5 shell, a 501 cavity shell, a 502 oil circuit shell, a 503 air circuit shell, a 6 oil circuit channel, a 7 air circuit channel, a 701 inclined channel, a 702 guide channel, a 8 first cavity, a 801 oil pressure chamber, an 802 limiting groove, a 9 second cavity, a 901 air pressure chamber, a 10 reinforcing rib, an 11 connecting part, a 1101 handle connecting pin, a 1102 limiting block and a 12 handle assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-7, a fuel gun with a self-sealing cover is provided, which comprises a gun body 1 and a self-sealing assembly 2, wherein the gun body 1 is provided with the self-sealing cover 3 which is independently detachable, the self-sealing cover 3 comprises a base 4 and a shell 5 which is convex relative to the base 4, the base 4 is connected with the gun body 1, and an oil passage 6, an air passage 7 and a first cavity 8 and a second cavity 9 which are longitudinally communicated are arranged in the shell 5; the self-sealing assembly 2 comprises an oil pressure driving piston 201, a base 202 and a diaphragm assembly 203, wherein the oil pressure driving piston 201 is positioned in the first cavity 8, and an oil pressure chamber 801 is formed between the oil pressure driving piston 201 and the inner wall of the shell 5; the base 202 and the diaphragm assembly 203 are positioned in the second cavity 9, and an air pressure chamber 901 is formed between the diaphragm assembly 203 and the oil pressure driving piston 201; the oil passage 6 is communicated with the oil pressure chamber 801, and the gas passage 7 is communicated with the air pressure chamber 901.

Preferably, a limiting groove 802 is arranged in the first cavity 8, a retaining ring is arranged in the limiting groove 802, and the retaining ring is arranged between the oil pressure driving piston 201 and the base 202 to enable the oil pressure driving piston 201 to be limited in the first cavity 8 to slide longitudinally.

The limiting groove with the check ring is arranged in the first cavity of the self-sealing cover, the movement range of the oil pressure driving piston can be limited between the check ring and the top end of the first cavity, the oil pressure driving piston is always located in the first cavity, and the first cavity and the second cavity are separated.

Preferably, the base 202 is provided with a through hole, and the through hole enables the air pressure chamber to be communicated with the air passage channel 7.

The base is attached to the edge of the membrane assembly, so that a through hole communicated with the air channel is formed in the base, and an air pressure chamber can be formed above the membrane assembly.

Preferably, the housing 5 includes a cavity housing 501 including a first cavity 8 and a second cavity 9, and a reinforcing rib 10 is disposed between the upper surface of the base 4 and the outer side wall of the cavity housing 501.

Set up the strengthening rib between cavity casing and base, can effectively strengthen the compressive capacity of cavity casing, prevent that the cavity casing from because of the internal pressure reinforcing inflation deformation.

Preferably, an oil passage housing 502 extends outwards from one side of the cavity housing 501, the oil passage 6 is located in the oil passage housing 502, and the oil passage 6 obliquely leads into the first cavity 8 from the base 4.

The linear oil path channel in the preferred scheme is adopted, and only the inclined hole drilling along the oil path shell is needed, so that the operation of manufacturing the self-sealing cover is simpler and more convenient.

Preferably, the housing 5 further includes an air path housing 503, the air path channel 7 is located in the air path housing 8, the air path channel 7 includes an inclined channel 701 and a guide channel 702, the inclined channel 701 starts from the base 4 and is communicated with the guide channel 702, and the guide channel 702 is communicated with the second cavity 9.

By adopting the preferred scheme, the manufacturing process of the gas path channel just needs to drill obliquely as the oil path channel until the oblique channel and the guide channel are opened, and the operation is simple and easy to control.

Preferably, the base 4 is provided with a connecting hole 401, and the gun body 1 and the self-sealing cover 3 are connected and fixed by a bolt passing through the connecting hole 401.

Other means of welding, splicing, etc. may be used, but the preferred embodiment may facilitate removal and assembly from the closure.

Preferably, an annular sealing groove 402 is formed in one side of the base 4 connected with the gun body 1, and a sealing element is arranged in the annular sealing groove 402.

Adopt preferred scheme can strengthen the leakproofness between base and the rifle body, guarantee to proclaim oneself the subassembly and from the cooperation effect of closing cap.

Preferably, the self-sealing cover 3 further comprises a connecting portion 11, and the connecting portion 11 comprises a handle connecting pin 1101 and a first limiting block 1102 connected with a side wall of the handle connecting pin 1101; the oil gun further comprises a handle assembly 12, the handle assembly 12 penetrates through a handle connecting pin 1101 to be connected with the gun body 1, and a second limiting block matched with the first limiting block 1102 is arranged on the gun body 1, so that the handle assembly 12 moves between the first limiting block 1102 and the second limiting block.

Adopt preferred scheme to ensure the transmission between handle assembly and the rifle body and be connected.

Preferably, the inner walls of the first and

second cavities

8 and 9 are smoothed.

Adopt preferred scheme for the assembly can be nimble in first cavity and second cavity and move from the sealing, guarantees the sensitivity of device, reduces the wearing and tearing between the part, increases life.

It should be noted that, in the foregoing system embodiment, each included system unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present invention.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a nozzle with from closing cap, includes the rifle body (1) and proclaims oneself subassembly (2), its characterized in that: the gun body (1) is provided with an independent detachable self-sealing cover (3), the self-sealing cover (3) comprises a base (4) and a shell (5) protruding relative to the base (4), the base (4) is connected with the gun body (1), and an oil channel (6), a gas channel (7) and a first cavity (8) and a second cavity (9) which are longitudinally communicated are arranged in the shell (5); the self-sealing assembly (2) comprises an oil pressure driving piston (201), a base (202) and a membrane assembly (203), the oil pressure driving piston (201) is located in the first cavity (8), and an oil pressure chamber (801) is formed between the oil pressure driving piston (201) and the inner wall of the shell (5); the base (202) and the diaphragm assembly (203) are positioned in the second cavity (9), and a pneumatic chamber (901) is formed between the diaphragm assembly (203) and the oil pressure driving piston (201); the oil passage (6) is communicated with the oil pressure chamber (801), and the gas passage (7) is communicated with the air pressure chamber (901).

2. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: be equipped with spacing groove (802) in first cavity (8), retaining ring is equipped with in spacing groove (802), the retaining ring setting makes oil pressure drive piston (201) spacing longitudinal sliding in first cavity (8) between oil pressure drive piston (201) and base (202).

3. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: the base (202) is provided with a through hole, and the through hole enables the air pressure chamber (901) to be communicated with the air channel (7).

4. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: the shell (5) comprises a cavity shell (501) which comprises a first cavity (8) and a second cavity (9), and a reinforcing rib (10) is arranged between the upper surface of the base (4) and the outer side wall of the cavity shell (501).

5. The fuel nozzle with the self-sealing cover as set forth in claim 4, wherein: one side of the cavity shell (501) extends outwards to form an oil circuit shell (502), the oil circuit channel (6) is located in the oil circuit shell (502), and the oil circuit channel (6) obliquely enters the first cavity (8) from the base (4).

6. The fuel nozzle with the self-sealing cover as set forth in claim 4, wherein: casing (5) still include gas circuit casing (503), gas circuit passageway (7) are located gas circuit casing (503), just gas circuit passageway (7) include slant passageway (701) and direction passageway (702), direction passageway (702) vertically set up with second cavity (9) intercommunication, slant passageway (701) are followed base (4) and are started slant intercommunication direction passageway (702).

7. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: the gun is characterized in that a connecting hole (401) is formed in the base (4), and the gun body (1) and the self-sealing cover (3) are fixedly connected through a bolt penetrating through the connecting hole (401).

8. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: one side that base (4) and rifle body (1) are connected is equipped with annular seal groove (402), be equipped with the sealing member in annular seal groove (402).

9. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: the self-sealing cover (3) further comprises a connecting part (11), wherein the connecting part (11) comprises a handle connecting pin (1101) and a first limiting block (1102) connected with the side wall of the handle connecting pin (1101); the oil gun further comprises a handle assembly (12), the handle assembly (12) penetrates through a handle connecting pin (1101) to be connected with the gun body (1), and a second limiting block matched with the first limiting block (1102) is arranged on the gun body (1), so that the handle assembly (12) moves between the first limiting block (1102) and the second limiting block.

10. The fuel nozzle with the self-sealing cover as set forth in claim 1, wherein: the inner walls of the first cavity (8) and the second cavity (9) are all subjected to smoothing treatment.