CN209890245U

CN209890245U - Oil gun

Info

Publication number: CN209890245U
Application number: CN201920110982.8U
Authority: CN
Inventors: 徐艳华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2020-01-03
Anticipated expiration: 2029-01-22

Abstract

The utility model provides a nozzle, include: the gun comprises a gun body, a barrel body and a gun body, wherein an oil inlet channel and an oil outlet channel are formed in the gun body, a platform is formed between the oil inlet channel and the oil outlet channel, and a liquid passing port for communicating the oil inlet channel and the oil outlet channel is formed in the middle of the platform; the gun barrel is connected to the front end of the oil outlet channel, and the hose of the oiling machine is connected to the tail end of the oil inlet channel; a stop valve disposed above the platform; the ejector rod is connected to the stop valve, and the lower end of the ejector rod extends out of the gun body; a spring disposed above the check valve for pressing the check valve; the pressing strip is movably connected to the gun body, and the front part of the pressing strip is positioned below the ejector rod; wherein: the liquid passing hole extends downwards for a section to form a liquid passing hole, the liquid passing hole downwards forms a section of gradual change section from the upper end, and the section area of the gradual change section of the liquid passing hole is gradually reduced from top to bottom; the stop valve includes a body in the shape of a flat column and a column formed below the body.

Description

Oil gun

Technical Field

The utility model relates to an refueling equipment technical field especially relates to a nozzle for refueling the vehicle.

Background

A fuel nozzle in the prior art generally includes a nozzle body, a barrel provided at a front end of the nozzle body. An oil inlet channel and an oil outlet channel are arranged in the gun body, the gun barrel is connected with the front end of the oil outlet channel, and a hose of the oiling machine is connected with the tail end of the oil inlet channel.

A platform is arranged between the oil inlet channel and the oil outlet channel, and the middle part of the platform is provided with a liquid passing port; a flat columnar stop valve is arranged above the platform, the lower end of the stop valve is provided with a push rod, the lower end of the push rod extends out of the gun body, and the upper end of the stop valve is provided with a spring for pushing the stop valve so as to enable the stop valve to be pressed on the platform to block the liquid passing port to realize the isolation of the oil inlet channel and the oil outlet channel; the gun body is movably connected with a pressing strip, the front part of the pressing strip is positioned below the ejector rod, when the front part of the pressing strip is driven by hands to rotate upwards, the pressing strip pushes the ejector rod upwards to enable the stop valve to move upwards to open the liquid passing port, and fuel oil in the oil inlet channel enters the oil outlet channel through the liquid passing port and is injected into an oil tank of a vehicle through the gun barrel.

The above-mentioned fuel gun has the following problems:

the pressing strip only leads the stop valve to open the liquid passing opening by a large opening degree through a small rotation amount, or the ratio of the variation of the opening degree of the liquid passing opening to the unit displacement of the ejector rod is large, so that the opening degree of the liquid passing opening is not easy to control through applying force to the pressing strip, and further the flow of fuel passing through the liquid passing opening and the flow of filling fuel are not easy to control.

The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nozzle to solve the above-mentioned technical problem who exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fuel gun, comprising:

the gun comprises a gun body, a barrel body and a nozzle, wherein an oil inlet channel and an oil outlet channel are formed in the gun body, a platform is formed between the oil inlet channel and the oil outlet channel, and a liquid passing port for communicating the oil inlet channel and the oil outlet channel is formed in the middle of the platform;

a barrel connected to the front end of the oil outlet passage, and a hose of the fuel dispenser connected to the tail end of the oil inlet passage;

a stop valve disposed above the platform;

a push rod connected to the stop valve, a lower end of the push rod extending out of the gun body;

a spring disposed above the stopper valve for pressing the stopper valve;

the pressing strip is movably connected to the gun body, and the front part of the pressing strip is positioned below the ejector rod; wherein:

the liquid passing hole extends downwards for a section to form a liquid passing hole, the liquid passing hole downwards forms a section of gradual change section from the upper end, and the section area of the gradual change section of the liquid passing hole is gradually reduced from top to bottom;

the stop valve comprises a main body in the shape of a flat column and a column body formed below the main body.

Preferably, the transition section of the liquid passing hole is provided with a plurality of vertically extending grooves, the grooves are circumferentially arranged, and the grooves are gradually shallow from top to bottom.

Preferably, a plug is arranged at a position of the gun body vertically opposite to the stop valve, and the spring is arranged between the plug and the stop valve.

Preferably, a sealing ring is arranged on the platform to be pressed by the main body.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has: because the liquid passing hole is provided with a section of gradual change section, the opening degree of the liquid passing port is jointly limited by the lower end of the column body and the hole wall of the gradual change section which is flush with the lower end of the column body, when the stop valve is moved upwards by the pressing bar through the mandril, the opening degree of the liquid passing port is gradually increased due to the gradual increase of the sectional area of the gradual change section which is level with the lower end of the column body, thus, the amount of change in the opening degree of the liquid passing port due to the unit displacement of the stopper valve can be made more reasonable by setting the amount of change in the area of the transition section per unit axial dimension, for example, the amount of change in the opening degree of the liquid passing port caused by the unit displacement of the stopper valve can be made smaller by reducing the amount of change in the area per unit axial dimension, and then can avoid carrying on the emergence that can make the aperture of the liquid passing mouth increase to the biggest condition in the twinkling of an eye when the layering carries out less rotation volume, and then make the operator can conveniently control the filling flow of fuel.

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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a fuel nozzle provided in an embodiment of the present invention (a liquid through port is in a blocked state);

fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural diagram of a fuel nozzle according to an embodiment of the present invention (a liquid through port is in an open state);

fig. 4 is an enlarged view of a portion B of fig. 3.

Icon: 10-gun body; 11-an oil inlet channel; 12-an oil outlet channel; 13-a platform; 14-a liquid passing port; 15-liquid passing hole; 151-transition; 1511-groove; 20-a stop valve; 21-a body; 22-a column; 30-a spring; 40-ejector pin; 50-pressing strips; 60-plug; 70-sealing ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

As shown in FIGS. 1 to 4, the embodiment of the utility model discloses a fuel truck nozzle, this fuel truck nozzle includes: gun body 10, barrel, stop valve 20, ram 40, spring 30, and bead 50. An oil inlet channel 11 and an oil outlet channel 12 are formed in the gun body 10, a platform 13 is formed between the oil inlet channel 11 and the oil outlet channel 12, a liquid passing port 14 used for communicating the oil inlet channel 11 and the oil outlet channel 12 is formed in the middle of the platform 13, and the liquid passing port 14 is used for communicating the oil inlet channel 11 and the oil outlet channel 12. A barrel (not shown in the drawings) is connected to the front end of the oil outlet passage 12, and a hose of the fuel dispenser is connected to the rear end of the oil inlet passage 11. The check valve 20 is disposed above the platform 13, as shown in fig. 2, when the check valve 20 is pressed against the platform 13, the liquid passing port 14 is blocked, the oil inlet passage 11 and the oil outlet passage 12 are blocked, which makes the fuel gun in a closed state, as shown in fig. 4, when the check valve 20 is moved upward, the liquid passing port 14 is opened, the oil inlet passage 11 is communicated with the oil outlet passage 12, and the fuel in the oil inlet passage 11 can flow into the oil outlet passage 12 through the liquid passing port 14, so that the fuel gun is opened, thereby enabling the fuel to be injected into the fuel tank of the vehicle through the barrel. The upper end of the stem 40 is vertically connected to the check valve 20 and is located below the check valve 20, and the lower end of the stem 40 protrudes out of the gun body 10. The spring 30 is disposed above the check valve 20 for pressing the check valve 20, and when the check valve 20 is not subjected to the upward force of the plunger 40, the spring 30 presses the check valve 20 against the platform 13 to block the liquid passing port 14. The pressing strip 50 is movably connected to the gun body 10, the front portion of the pressing strip 50 is located below the ejector rod 40, as shown in fig. 4, when an operator applies force upwards on the pressing strip 50 to enable the front portion of the pressing strip 50 to rotate upwards, the pressing strip 50 pushes against the ejector rod 40 to move upwards, the ejector rod 40 drives the stop valve 20 to move upwards to enable the liquid passing port 14 to be opened, and the spring 30 is compressed, as shown in fig. 2, and after the operator removes the force on the pressing strip 50, the spring 30 resets to enable the stop valve 20 to move downwards again to block the liquid passing port 14. In the present invention, the liquid passing port 14 and the stop valve 20 are configured as follows:

extending a section of the liquid passing hole 15 downwards to form a liquid passing hole 15, wherein the liquid passing hole 15 downwards forms a section of gradual change section 151 from the upper end, and the section area of the gradual change section 151 of the liquid passing hole 15 gradually decreases from top to bottom; the check valve 20 includes a body 21 having a flat column shape and a column 22 formed below the body 21. It will be readily appreciated that the column 22 below the body 21 is located in the liquid passing hole 15 when the body 21 is pressed against the platform 13. The utility model discloses in, make cylinder 22 and cross liquid hole 15 have fit clearance, and this fit clearance can not be too big to cylinder 22 can not produce too big radial float in crossing liquid hole 15, and can not produce the friction with the pore wall of crossing liquid hole 15 as the criterion, and when cylinder 22 of main part 21 below pressed in platform 13 at main part 21, the lower extreme of cylinder 22 flushed or was slightly higher than the lower extreme of transition 151 with the lower extreme of transition 151.

The advantages of the above embodiment are: because the gradual change section 151 is arranged in the liquid passing hole 15, the opening degree of the liquid passing port 14 is jointly limited by the lower end of the column 22 and the hole wall of the gradual change section 151 at the position flush with the lower end of the column 22, so that when the stop valve 20 is moved upwards by the push rod 40 by the pressing strip 50, the opening degree of the liquid passing port 14 is gradually increased due to the gradual increase of the cross-sectional area of the gradual change section 151 flush with the lower end of the column 22, thus, the variation of the opening degree of the liquid passing port 14 caused by the unit displacement of the stop valve 20 can be more reasonable by setting the variation of the area of the gradual change section 151 in the unit axial dimension, for example, the variation of the opening degree of the liquid passing port 14 caused by the unit displacement of the stop valve 20 can be smaller by reducing the variation of the area of the unit axial dimension, and the situation that the opening degree of the liquid passing port 14 can be instantly increased to the maximum when the pressing strip 50 rotates, and further, an operator can conveniently control the fuel filling flow.

The transition 151 may be a tapered hole, however, the tapered hole may cause the cylinder 22 to move greatly when the stop valve 20 moves up to a certain height, because the cylinder is not restricted by the liquid through hole 15.

In a preferred embodiment of the present invention, as shown in fig. 2 and 4, the transition section 151 of the liquid passing hole 15 is provided with a plurality of vertically extending grooves 1511, the plurality of grooves 1511 are circumferentially arranged, and the grooves 1511 become shallow gradually from top to bottom. In this embodiment, the opening of the liquid passing hole 15 is determined by the sum of the cross-sectional areas of the lower end of the column 22 and all the grooves 1511 flush with the column 22. In the present embodiment, on the one hand, the grooves 1511 can allow fuel to pass through, and on the other hand, the hole walls of the liquid passing holes 15 between the grooves 1511 have a radial limiting effect on the cylinder 22 to prevent the cylinder 22 from generating large radial movement.

In a preferred embodiment of the present invention, as shown in fig. 2, a plug 60 is disposed at a position vertically opposite to the stop valve 20 of the gun body 10, a spring 30 is disposed between the plug 60 and the stop valve 20, and the plug can be mounted on the gun body 10 by screwing. In this embodiment, the spring 30 can be replaced by detaching the plunger from the gun body 10.

In a preferred embodiment of the present invention, as shown in fig. 2, a sealing ring 70 is provided on the platform 13 for the main body 21 to press against. In this embodiment, the sealing ring 70 seals the stop valve 20 with the platform 13, thereby preventing a small amount of fuel from leaking through the liquid passing port 14 when the liquid passing port 14 is in a closed state.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A fuel gun, comprising:

a stop valve disposed above the platform;

a spring disposed above the stopper valve for pressing the stopper valve;

2. The fuel nozzle as claimed in claim 1, wherein the transition section of the liquid passing hole is formed with a plurality of vertically extending grooves, the plurality of grooves are circumferentially arranged, and the grooves are gradually shallower from top to bottom.

3. The fuel nozzle as claimed in claim 1, wherein a plug is provided at a position vertically opposite to the stopper valve, and the spring is provided between the plug and the stopper valve.

4. The fuel nozzle of claim 1, wherein the platform is configured with a gasket against which the body presses.