CN211946245U - Oil gun with dry-type gas tightness detects function - Google Patents
Oil gun with dry-type gas tightness detects function Download PDFInfo
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- CN211946245U CN211946245U CN202020168596.7U CN202020168596U CN211946245U CN 211946245 U CN211946245 U CN 211946245U CN 202020168596 U CN202020168596 U CN 202020168596U CN 211946245 U CN211946245 U CN 211946245U
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Abstract
The utility model relates to a nozzle with dry-type gas tightness detects function, include the separating valve (3) of installing in shell body (1), separating valve (3) include valve body (3.1), form air flue (4) of loop configuration between outer wall and shell body (1) of valve body (3.1), the center of valve body (3.1) is provided with air return way (3.3) along its axial; the valve is characterized in that a detection hole (3.1.1) is radially arranged on the valve wall of the valve body (3.1), the detection hole (3.1.1) is communicated with the air passage (4) and the air return passage (3.3), and a detection valve (5) is arranged in the detection hole (3.1.1). The utility model relates to a nozzle with dry-type gas tightness detects function, it adjusts simply and has whole sealing performance.
Description
Technical Field
The utility model relates to a nozzle especially relates to a can carry out airtight nozzle that detects under the condition of not logical oil, belongs to nozzle technical field.
Background
At present, the environmental protection bureau needs to perform air-tight sealing detection on the oil gun at regular intervals, and the conventional oil gun can perform air-tight sealing only under the use condition and cannot perform dry detection; therefore, oiling machine enterprises can only redesign the structure of the oil gun, the conventional method is to install a control screw at the front end of a control valve, and when the oil gun needs to be detected, the air passage is opened after the screw is adjusted, so that the detection is realized; however, the structure has a certain risk of oil leakage, and the operation is not convenient enough; therefore, a fuel nozzle with a simple structure and good sealing performance is needed to realize a dry-type air tightness detection function.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide a nozzle with dry-type gas tightness detects function, it adjusts simply and has whole sealing performance.
The purpose of the utility model is realized like this:
the fuel gun with the dry-type air tightness detection function comprises a separation valve arranged in an outer shell, wherein the separation valve comprises a valve body, an air passage of an annular structure is formed between the outer wall of the valve body and the outer shell, and an air return passage is arranged in the center of the valve body along the axial direction of the valve body; the valve wall of the valve body is radially provided with a detection hole which is communicated with the air passage and the air return passage, and a detection valve is arranged in the detection hole.
The utility model relates to a nozzle with dry-type gas tightness detects function, the check valve includes the vertical sealed axle that sets up in the inspection hole, the lower part cover of sealed axle is equipped with the sealing washer, and the inspection hole is a step hole, the sealing washer pressfitting forms the sealed face on the step face in this step hole, the upper portion cover of sealed axle is equipped with a spring, and inlays on the pore wall in inspection hole and has set a jump ring, and the lower extreme of spring is connected on the sealed axle, and the top of spring is supported and is leaned on the jump ring; the top of the sealing shaft is sleeved with a strong magnetic ring.
The utility model relates to a nozzle with dry-type gas tightness detects function, the outside arch of lower part outer wall of sealed axle is formed with a circular bead, and this circular bead is located the top of sealing washer, and the lower extreme of spring supports and leans on the circular bead.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has simple structure and convenient use, and realizes the on-off and closing of the gas circuit by utilizing the bypass; the gas circuit can be opened for detection only by adsorbing the strong magnetic ring in the gas circuit by using a strong magnetic object; meanwhile, the whole appearance keeps the sealing performance, the possibility of oil leakage and air leakage is avoided, and the safety performance is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an oil gun with a dry air tightness detection function according to the present invention.
Fig. 2 is a partial enlarged view (gas path closed) of the detection valve of the fuel nozzle with dry gas tightness detection function of the present invention.
Fig. 3 is a partial enlarged view (gas path opened) of the detection valve of the fuel nozzle with dry gas tightness detection function of the present invention.
Wherein:
the device comprises an outer shell 1, a control valve 2, a separation valve 3, an air passage 4 and a detection valve 5;
the valve comprises a valve body 3.1, an oil duct 3.2, an air return duct 3.3, a valve rod 3.4, a spring seat 3.5, an elastic part 3.6 and a communicating air duct 3.7;
detection hole 3.1.1;
an air guide groove 3.4.1;
seal shaft 5.1, sealing washer 5.2, strong magnetic ring 5.3, spring 5.4, jump ring 5.5.
Detailed Description
Referring to fig. 1 to 3, the fuel truck nozzle with dry type air tightness detection function according to the present invention includes a control valve 2 and a separation valve 3 installed in an outer casing 1, the separation valve 3 includes a valve body 3.1, an air passage 4 of an annular structure is formed between an outer wall of the valve body 3.1 and the outer casing 1, an oil passage 3.2 of a spiral structure is provided between valve walls of the valve body 3.1 and communicated to a cavity of the control valve 2, an air return passage 3.3 is provided at a center of the valve body 3.1 along an axial direction thereof, a valve rod 3.4 is transversely penetrated in the air return passage 3.3, a control valve rod of the control valve 2 is abutted against a head of the valve rod 3.4, a spring seat 3.5 located in the air return passage 3.3 is installed at a tail portion of the valve rod 3.4, an elastic member 3.6 sleeved on the spring seat 3.5 is pressed between inner walls of the air return passage 3.3 and the spring seat 3.5, an air guide groove 3.4 is provided on an outer wall of the valve rod 3., one end of a communicating air passage 3.7 arranged along the radial direction of the valve body 3.1 is communicated with the air guide groove 3.4.1, and the other end is communicated with the air passage 4; the method is characterized in that:
the valve wall of the valve body 3.1 is radially provided with a detection hole 3.1.1, the detection hole 3.1.1 is communicated with the air passage 4 and the air return passage 3.3, and a detection valve 5 is arranged in the detection hole 3.1.1.
When in use, the gas circuit can be conveniently and directly communicated by opening and closing the detection valve 5; the gas circuit is not required to be opened after the control valve 2 acts on the separating valve 3.
Further, the detection valve 5 comprises a sealing shaft 5.1 vertically arranged in the detection hole 3.1.1, a sealing ring 5.2 is sleeved on the lower portion of the sealing shaft 5.1, the detection hole 3.1.1 is a stepped hole, the sealing ring 5.2 is pressed on the stepped surface of the stepped hole to form a sealing surface, a spring 5.4 is sleeved on the upper portion of the sealing shaft 5.1, a clamp spring 5.5 is embedded in the hole wall of the detection hole 3.1.1, the lower end of the spring 5.4 is connected to the sealing shaft 5.1, and the top end of the spring 5.4 abuts against the clamp spring 5.5; the top of the sealing shaft 5.1 is sleeved with a strong magnetic ring 5.3;
when detection is needed, a strong magnet is attached to the outer wall of the oil gun or the electromagnet adsorbs a strong magnetic ring 5.3 to move upwards, so that the elasticity of the spring 5.4 can be overcome easily, and the whole gas path is opened; therefore, the integral integrity of the whole oil gun is ensured, and after the strong magnet or the electromagnet is removed, the gas path channel can be quickly closed under the elastic force action of the spring 5.4.
Furthermore, the outer wall of the lower part of the sealing shaft 5.1 protrudes outwards to form a shoulder which is positioned above the sealing ring 5.2, and the lower end of the spring 5.4 is abutted against the shoulder;
in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (3)
1. The oil gun with the dry-type air tightness detection function comprises a separation valve (3) installed in an outer shell (1), wherein the separation valve (3) comprises a valve body (3.1), an air channel (4) of an annular structure is formed between the outer wall of the valve body (3.1) and the outer shell (1), and an air return channel (3.3) is arranged in the center of the valve body (3.1) along the axial direction of the valve body;
the method is characterized in that:
the valve is characterized in that a detection hole (3.1.1) is radially arranged on the valve wall of the valve body (3.1), the detection hole (3.1.1) is communicated with the air passage (4) and the air return passage (3.3), and a detection valve (5) is arranged in the detection hole (3.1.1).
2. The fuel gun with dry airtightness detection function according to claim 1, wherein: the detection valve (5) comprises a sealing shaft (5.1) vertically arranged in a detection hole (3.1.1), a sealing ring (5.2) is sleeved at the lower part of the sealing shaft (5.1), the detection hole (3.1.1) is a stepped hole, the sealing ring (5.2) is pressed on the stepped surface of the stepped hole to form a sealing surface, a spring (5.4) is sleeved at the upper part of the sealing shaft (5.1), a clamp spring (5.5) is embedded in the hole wall of the detection hole (3.1.1), the lower end of the spring (5.4) is connected to the sealing shaft (5.1), and the top end of the spring (5.4) is abutted against the clamp spring (5.5); the top of the sealing shaft (5.1) is sleeved with a strong magnetic ring (5.3).
3. The fuel gun with a dry airtightness detecting function according to claim 2, wherein: the outer wall of the lower part of the sealing shaft (5.1) protrudes outwards to form a shoulder which is positioned above the sealing ring (5.2), and the lower end of the spring (5.4) is abutted against the shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168596.7U CN211946245U (en) | 2020-02-13 | 2020-02-13 | Oil gun with dry-type gas tightness detects function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020168596.7U CN211946245U (en) | 2020-02-13 | 2020-02-13 | Oil gun with dry-type gas tightness detects function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211946245U true CN211946245U (en) | 2020-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020168596.7U Active CN211946245U (en) | 2020-02-13 | 2020-02-13 | Oil gun with dry-type gas tightness detects function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211946245U (en) |
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2020
- 2020-02-13 CN CN202020168596.7U patent/CN211946245U/en active Active
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