Motorcycle oil gun

Abstract

The utility model provides a motorcycle oil gun which comprises a gun body assembly with an oil gas channel inner cavity, the inner cavity comprises a first inner cavity and a second inner cavity which are located on the two sides of a main valve assembly, a handle assembly controls opening and closing of an oil gas channel by controlling the main valve assembly, and the gun body assembly is connected with a gun barrel. The gun further comprises an auxiliary valve assembly arranged between the second inner cavity and the gun barrel, the auxiliary valve assembly comprises an auxiliary valve body, an auxiliary valve seat and an auxiliary valve element, the auxiliary valve element is in sliding fit with an extension cylinder on the auxiliary valve seat through an extension column, the extension column is sleeved with a spring, and a flow limiting gasket for limiting the spring is arranged outside the extension cylinder. The oil tank of the motorcycle is shallow, and the oil storage amount is small, in the technical scheme, the spring is limited by arranging the flow limiting gasket, so that the stroke of relative sliding of the extension column and the extension cylinder is limited, the effect of limiting the maximum stroke of the auxiliary valve element is achieved, the maximum opening amount of the auxiliary valve is limited, and the flow entering the gun barrel is limited; the oil gun is suitable for motorcycle oil filling.

Description

Technical Field

[0001] The utility model relates to the field of refueling equipment, in particular to a motorcycle refueling gun. Background Art

[0002] The fuel gun is the terminal of the fuel dispenser in the gas station, that is, the part that contacts the car's fuel tank. It usually includes a gun body and a handle. When the gas station staff presses and swings the handle set under the gun body, the gun body injects fuel into the car's fuel tank.

[0003] When refueling a car, most gas stations use self-sealing refueling guns, which have the function of automatically closing when the car tank is full. For example, the applicant previously invented a pressure-free self-sealing device for a drip-proof oil and gas recovery gun (CN 214780737U) for this type of refueling gun, which includes a gun body, which includes a first inner cavity and a second inner cavity constituting an oil and gas channel; a gun barrel connected to the gun body; a main valve for controlling refueling, the main valve device is arranged in the first inner cavity, and controls the passage of oil and gas from the refueling machine into the first inner cavity and into the second inner cavity; a handle mechanism connected to the main valve, the handle mechanism controls the opening and closing of the main valve through a horizontally moving piston; an opening is provided on the gun body, and a pressure-free self-sealing mechanism is provided on the opening; based on the pressure-free self-sealing oil and gas recovery refueling gun, when quantitative refueling is completed and the oil level does not block the air hole of the gun barrel, the oil pump is automatically closed, and the oil pressure in the gun body is reduced. When the pressure is reduced to a level that is insufficient to overcome the reset force of the relevant reset spring, the spring reset immediately resets the relevant mechanism and drives the handle reset to achieve the refueling action of automatically jumping the gun and closing.

[0004] At present, the refueling gun is generally designed to be compatible with the caliber and flow rate of automobiles, while there are few refueling guns for motorcycles; the Chinese utility model patent (CN215756417 U) discloses a motorcycle oil and gas recovery refueling gun gas collecting cover and a refueling gun, the motorcycle oil and gas recovery refueling gun gas collecting cover is mainly composed of an embedded section, a telescopic section and a fixed section, when refueling a motorcycle at a gas station, the embedded section can be directly inserted into the refueling port of the motorcycle tank, so that the embedded section and the refueling port are sealed and connected, thereby preventing the oil and gas generated during refueling from escaping to the atmosphere and reducing atmospheric pollution. And, the Chinese utility model patent (CN202223157379.6) provides a refueling gun suitable for motorcycles, which includes a fuel tank, an oil outlet pipe is provided on the left side of the fuel tank, an auxiliary mechanism is provided on the oil outlet pipe, and a leak-proof mechanism is provided on the auxiliary mechanism, the leak-proof mechanism includes two fixed plates, the two fixed plates are both arranged on the auxiliary mechanism, a fixed rod is fixed between the opposite sides of the two fixed plates, a movable rod is slidably connected to the outer surface of the fixed rod, and a leak-proof plate is fixed on the bottom surface of the movable rod. The utility model is provided with a leak-proof mechanism. After the motorcycle is refueled, the refueling pipe is blocked by a leak-proof plate, and the residual fuel in the refueling pipe is absorbed by an oil-absorbing pad to prevent the residual fuel from dripping. By providing an auxiliary mechanism, when refueling, the pressure ring is pressed down to drive the refueling pipe to be inserted into the refueling port of the motorcycle. After refueling, the pressure ring is released. At this time, the refueling pipe moves up and down under the action of the auxiliary spring to be drawn out of the refueling port of the motorcycle.

[0005] The above two patents respectively solve the problems of oil and gas pollution and fuel leakage of motorcycle refueling guns. However, due to cost and safety considerations, the above structures cannot be well promoted in application. The applicant has many years of experience in the production of automobile refueling guns. Based on the mature automobile refueling gun structure, the applicant has improved the currently widely used refueling gun so that it can be used for refueling motorcycles with smaller fuel tanks. Summary of the invention

[0006] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a motorcycle refueling gun. The technical solution adopted by the utility model is as follows:

[0007] A motorcycle refueling gun comprises a gun body assembly, a gun barrel assembly connected to the gun body assembly, a handle assembly, and a gun frame assembly; the gun body assembly has an inner cavity constituting an oil and gas passage, the inner cavity comprises a first inner cavity and a second inner cavity located on both sides of a main valve assembly, and the main valve assembly controls the switch of the oil and gas passage; the gun barrel assembly is connected to the gun body assembly by a fixing screw, and an auxiliary valve assembly is arranged between the gun barrel assembly and the gun body assembly; the handle assembly cooperates with the main valve assembly in the gun body by a driving push rod.

[0008] In order to make the oil flow rate of the refueling gun suitable for refueling motorcycles, the auxiliary valve assembly arranged between the second inner cavity and the gun barrel includes an auxiliary valve body, an auxiliary valve seat, and an auxiliary valve core slidably arranged between the auxiliary valve body and the auxiliary valve seat. The auxiliary valve core is slidably matched with the extension tube on the auxiliary valve seat through an extension column, and a spring is arranged outside the extension column, and a flow limiting gasket is arranged outside the extension tube to limit the spring.

[0009] Preferably, the auxiliary valve core includes an umbrella-shaped portion arranged close to the second inner cavity and an extension column arranged away from the second inner cavity, the umbrella-shaped portion is surrounded by an umbrella-shaped inclined surface, and the surface of the umbrella-shaped portion facing the second inner cavity is a plane; when the auxiliary valve core is not compressed, the spring is located between the umbrella-shaped portion and the flow limiting gasket and pushes the auxiliary valve core to cooperate with the auxiliary valve body to form a seal, and when the auxiliary valve core is impacted by the fluid, the umbrella-shaped portion squeezes the spring and causes the extension column to displace in a direction deeper into the extension tube. At this time, the umbrella-shaped portion and the flow limiting gasket squeeze the spring until its rebound force is balanced with the fluid pressure. Due to the presence of the flow limiting gasket, the total stroke of the auxiliary valve core pushing the spring and displacing is shortened.

[0010] Preferably, the auxiliary valve seat has a stepped portion, the flow limiting gasket is embedded between the stepped portion and the extension tube, and a side of the flow limiting gasket close to the auxiliary valve core does not protrude beyond a side of the stepped portion close to the auxiliary valve core.

[0011] Preferably, an auxiliary valve body sealing ring is embedded in the outer circumference of the auxiliary valve body, an auxiliary valve seat first sealing ring is embedded in the outer circumference of the auxiliary valve seat, and an auxiliary valve seat second sealing ring is embedded in the inner circumference of the auxiliary valve seat away from the extension tube.

[0012] Preferably, the overall length of the gun barrel is in the range of 185-187 mm, which is 10 mm shorter than the barrel of a conventional refueling gun, thereby avoiding interference between the gun barrel and the inside of the motorcycle fuel tank, causing the splash guard to not be completely sealed.

[0013] Preferably, the barrel outer sleeve is provided with a splash-proof sleeve made of a transparent material, one end of the splash-proof sleeve is close to the outer sleeve of the refueling gun, and the other end extends to the vicinity of the oil outlet of the barrel.

[0014] Preferably, the splash-proof sleeve has a plurality of bending parts, and the bending parts are composed of two conical tubes, the two conical tubes are connected at the maximum diameter, and adjacent bending parts are connected at the minimum diameter.

[0015] Preferably, the splash-proof sleeve has a curved curvature as a whole, or the center line of the splash-proof sleeve is bent to form an obtuse angle.

[0016] Preferably, one end of the splash-proof sleeve close to the oil outlet is a collecting port, and the collecting port is a bell-shaped port whose diameter gradually expands outwards.

[0017] Preferably, the end of the splash-proof sleeve away from the oil outlet is a connecting part, which is connected to the gun barrel through an adjustable clamp, and the end of the connecting part has a flange, which is inserted into the inner sleeve of the refueling gun, and a first through hole is opened on the side of the bending part close to the connecting part, and the first through hole is exposed outside the sleeve.

[0018] Preferably, the refueling gun has a gun frame assembly, on which a gear indicating structure is provided for the handle assembly to shift gears; multiple gears suitable for the car are changed to one gear, thereby ensuring the maximum flow rate for refueling the suitable motorcycle when the gear is engaged.

[0019] The beneficial effects of the utility model are as follows: the motorcycle fuel tank is shallow and has a small oil storage capacity. In the present technical solution, the auxiliary valve assembly can prevent the oil in the second inner cavity from dripping from the barrel, and by setting a flow-limiting gasket to limit the spring, thereby limiting the relative sliding stroke of the extension column and the extension tube, achieving the effect of limiting the maximum stroke of the auxiliary valve core, thereby limiting the maximum opening amount of the auxiliary valve, limiting the flow entering the barrel, and making the refueling gun suitable for refueling motorcycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0022] Figure 2 is a cross-sectional view of Example 1;

[0023] Figure 3 This is a schematic diagram of the auxiliary valve structure of Example 1;

[0024] Figure 4 This is a front view of the auxiliary valve structure of Example 1;

[0025] Figure 5 This is the appearance diagram of the auxiliary valve structure of Example 1;

[0026] Figure 6 This is a schematic diagram of the splash-proof sleeve structure of Example 1;

[0027] Figure 7 for Figure 2 Enlarged view of point A in the middle;

[0028] In the figure, 1-barrel assembly, 2-handle assembly, 3-gun frame assembly, 4-proportional valve assembly, 5-filter assembly, 6-main valve spring, 7-main valve sealing seat, 8-main valve assembly, 9-upper cover assembly, 10-pressure cover assembly, 11-pressureless self-sealing assembly, 12-gun body assembly, 13-push rod, 14-sheath, 15-jacket, 16-splashproof sleeve, 161-splashproof sleeve connecting part, 162-bending part, 163-collecting port, 164-first through hole, 17-auxiliary valve assembly, 171-auxiliary valve body, 172- auxiliary valve body sealing ring, 173- auxiliary valve core, 1731- umbrella-shaped part, 1732- extension column, 174- spring, 175- flow limiting gasket, 176- auxiliary valve seat, 1761- extension tube, 177- auxiliary valve seat first sealing ring, 178 auxiliary valve seat second sealing ring, 18- adjustable clamp, 19- fixing screw, 20- gun barrel, 21- oil outlet, 22- upper cover fixing screw, 23- screw hole sealing ring, 24- cotter pin, 25- gun frame semi-hollow rivet, 26- gun frame fixing screw. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0030] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0031] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0032] like Figure 1-7As shown, a motorcycle refueling gun comprises a gun body assembly 12, a gun barrel assembly 1 connected to the gun body assembly 12, a handle assembly 2, and a gun frame assembly 3; the gun body assembly 12 has an inner cavity constituting an oil and gas passage, the inner cavity comprising a first inner cavity and a second inner cavity located on both sides of a main valve assembly 8, and the main valve assembly 8 controls the switch of the oil and gas passage; the gun barrel assembly 1 is connected to the gun body assembly 12 by a fixing screw 19, and an auxiliary valve assembly 17 is arranged between the gun barrel assembly 1 and the gun body assembly 12; the handle assembly 2 cooperates with the main valve assembly 8 in the gun body through a driving push rod 13 The main valve assembly 8 includes a main valve sealing seat 7, a main valve spring 6, and an upper cover assembly 9 and a pressure cover assembly 10, and a pressure-free self-sealing assembly 11 are arranged above the main valve assembly 8; a proportional valve assembly 4 is arranged on the side of the main valve assembly 8 close to the oil inlet, and a filter assembly 5 including a filter is installed at the inlet of the proportional valve assembly 4; the gun body assembly 12 is connected to the gun frame assembly 3 through a gun frame fixing screw 26 and a gun frame semi-hollow rivet 25, and a sheath 14 is arranged on the outer jacket of the end of the gun body assembly 12 close to the oil inlet, and a leather jacket 15 is arranged on the outer jacket of the end of the gun body assembly 12 close to the barrel 20.

[0033] In order to make the oil flow rate of the refueling gun suitable for refueling motorcycles, the auxiliary valve assembly 17 arranged between the second inner cavity and the barrel 20 in this embodiment includes an auxiliary valve body 171, an auxiliary valve seat 176, and an auxiliary valve core 173 that can be slidably arranged between the auxiliary valve body 171 and the auxiliary valve seat 176. The auxiliary valve core 173 is slidably matched with the extension tube 1761 on the auxiliary valve seat 176 through an extension column 1732, and a spring 174 is arranged outside the extension column 1732, and a flow limiting gasket 175 is arranged outside the extension tube 1761 to limit the spring 174.

[0034] The auxiliary valve core 173 includes an umbrella-shaped portion 1731 arranged close to the second inner cavity and an extension column 1732 arranged away from the second inner cavity. The umbrella-shaped portion 1731 is surrounded by an umbrella-shaped inclined surface, and the surface of the umbrella-shaped portion 1731 facing the second inner cavity is a flat surface.

[0035] When the auxiliary valve core 173 is not compressed, the spring 174 is located between the umbrella-shaped portion 1731 and the flow-limiting gasket 175 and pushes the auxiliary valve core 173 to cooperate with the auxiliary valve body 171 to form a seal. When the auxiliary valve core 173 is impacted by the fluid, the umbrella-shaped portion 1731 squeezes the spring 174 and causes the extension column 1732 to move in the direction of deepening into the extension tube 1761. At this time, the umbrella-shaped portion 1731 and the flow-limiting gasket 175 squeeze the spring 174 until its rebound force is balanced with the fluid pressure. Due to the existence of the flow-limiting gasket 175, the total stroke of the auxiliary valve core 173 pushing the spring 174 and displacing is shortened.

[0036] The auxiliary valve seat 176 has a stepped portion 1762 , and the flow limiting gasket 175 is embedded between the stepped portion 1762 and the extension tube 1761 , and a surface of the flow limiting gasket 175 close to the auxiliary valve core 173 does not protrude from a surface of the stepped portion 1762 close to the auxiliary valve core 173 .

[0037] The auxiliary valve body sealing ring 172 is embedded in the outer circumference of the auxiliary valve body, the auxiliary valve seat 176 is embedded in the outer circumference of the auxiliary valve seat 177, and the auxiliary valve seat second sealing ring 178 is embedded in the inner circumference of the auxiliary valve seat 176 away from the extension tube 1761.

[0038] In this embodiment, the overall length of the gun barrel is 185.9 mm, which prevents the gun barrel from interfering with the inside of the motorcycle fuel tank and causing the splash guard 16 to not be completely sealed.

[0039] The barrel 20 is covered with a splash-proof sleeve 16 made of a transparent material. One end of the splash-proof sleeve 16 is close to the jacket 15 of the fuel gun, and the other end extends to the vicinity of the fuel outlet 21 of the barrel 20 .

[0040] The splash-proof sleeve 16 has a plurality of bending portions 162 . The bending portions 162 are formed by two conical tubes. The two conical tubes are connected at the maximum diameter, and adjacent bending portions 162 are connected at the minimum diameter.

[0041] The splash-proof sleeve 16 has a curved arc as a whole, or the center line of the splash-proof sleeve 16 is bent to form an obtuse angle; Figure 6 shown.

[0042] One end of the splash-proof sleeve 16 close to the oil outlet 21 is a collecting port 163 , and the collecting port 163 is a bell-shaped port with a gradually expanding outer diameter.

[0043] The end of the splash-proof sleeve 16 away from the oil outlet 21 is a connecting portion 161, which is connected to the barrel 20 via 18, and the end of the connecting portion 161 has a flange 1611, which is inserted into the inner part of the jacket 15 of the fuel gun, and a first through hole 164 is opened on the side of the bent portion 162 close to the connecting portion 161, and the first through hole 164 is exposed outside the jacket 15.

[0044] The refueling gun has a gun frame assembly 3, on which a gear indicating structure for the handle assembly 2 to engage in gear is provided; multiple gears adapted for the car are changed into one gear, thereby ensuring the maximum flow rate for refueling the adapted motorcycle when engaging in gear.

[0045] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A motorcycle refueling gun, comprising: A gun body assembly (12) having an inner cavity constituting an oil and gas passage, the inner cavity comprising a first inner cavity and a second inner cavity located on both sides of a main valve assembly (8), the main valve assembly (8) controlling the opening and closing of the oil and gas passage; A handle assembly (2) for controlling the opening and closing of the main valve assembly (8); a gun barrel (20) connected to the gun body assembly (12); The invention is characterized in that it also includes an auxiliary valve assembly (17) arranged between the second inner cavity and the gun barrel (20), wherein the auxiliary valve assembly (17) includes an auxiliary valve body (171), an auxiliary valve seat (176), and an auxiliary valve core (173) slidably arranged between the auxiliary valve body (171) and the auxiliary valve seat (176), wherein the auxiliary valve core (173) is slidably matched with an extension tube (1761) on the auxiliary valve seat (176) through an extension column (1732), and a spring (174) is arranged outside the extension column (1732), and a flow limiting gasket (175) is arranged outside the extension tube (1761) to limit the spring (174).

2. A motorcycle refueling gun according to claim 1, characterized in that: The auxiliary valve core (173) comprises an umbrella-shaped portion (1731) arranged close to the second inner cavity and an extension column (1732) arranged away from the second inner cavity. The umbrella-shaped portion (1731) is surrounded by an umbrella-shaped inclined surface, and the surface of the umbrella-shaped portion (1731) facing the second inner cavity is a plane.

3. A motorcycle refueling gun according to claim 1, characterized in that: The auxiliary valve seat (176) has a stepped portion (1762), and the flow limiting gasket (175) is embedded between the stepped portion (1762) and the extension tube (1761), and the side of the flow limiting gasket (175) close to the auxiliary valve core (173) does not protrude from the side of the stepped portion (1762) close to the auxiliary valve core (173).

4. A motorcycle refueling gun according to claim 1, characterized in that: The overall length of the gun barrel ranges from 185 to 187 mm.

5. A motorcycle refueling gun according to any one of claims 1 to 4, characterized in that: The barrel (20) is provided with a splash-proof sleeve (16) made of a transparent material, one end of the splash-proof sleeve (16) is close to the jacket (15) of the refueling gun, and the other end extends to the vicinity of the oil outlet (21) of the barrel (20).

6. A motorcycle refueling gun according to claim 5, characterized in that: The splash-proof sleeve (16) has a plurality of bending portions (162), wherein the bending portions (162) are formed by two conical tubes, wherein the two conical tubes are connected at the maximum diameter, and adjacent bending portions (162) are connected at the minimum diameter.

7. A motorcycle refueling gun according to claim 5, characterized in that: The splash-proof sleeve (16) has a curved arc as a whole, or the center line of the splash-proof sleeve (16) is bent to form an obtuse angle.

8. The motorcycle refueling gun according to claim 5, characterized in that: One end of the splash-proof sleeve (16) close to the oil outlet (21) is a collecting port (163), and the collecting port (163) is a bell-shaped port whose diameter gradually expands outwards.

9. The motorcycle refueling gun according to claim 5, characterized in that: One end of the splash-proof sleeve (16) away from the oil outlet (21) is a connecting portion (161), and the connecting portion (161) is connected to the gun barrel (20) via an adjustable clamp (18), and the end of the connecting portion (161) has a flange (1611), and the flange (1611) is inserted into the inner part of the outer sleeve (15) of the fuel gun.

10. The motorcycle refueling gun according to claim 1, characterized in that: The refueling gun comprises a gun frame assembly (3), and a gear position indicating structure for the handle assembly (2) to be engaged is arranged on the gun frame assembly (3).

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