Gas collecting device of oil gun

Abstract

The utility model discloses an oil gun gas collecting device which comprises a first gas collecting hood provided with a cylinder. And the second gas collecting hood is inserted into the cylinder body and is detachably connected with the cylinder body. According to the gas collecting device, the first gas collecting hood and the second gas collecting hood are spliced, and the length can be increased after splicing; when a motorcycle is refueled, the second gas collecting hood can be attached to an oil tank opening of the motorcycle, and oil gas generated by refueling can be wrapped in the second gas collecting hood and then extracted by a refueling gun, so that the oil gas is prevented from being dissipated into the atmosphere. Therefore, the problem that oil gas is directly dissipated into the atmosphere due to the fact that a gas collecting hood on an existing oil gun cannot be attached to an oil tank opening of the motorcycle can be solved. The oil-gas collecting hood has the advantages that oil gas can be prevented from being dissipated into the atmosphere when the motorcycle is refueled, the second gas collecting hood can be detached when refueling is finished, and then the first gas collecting hood can be used for refueling an oil tank of an automobile conveniently.

Description

Technical Field

[0001] The utility model relates to an air collecting device, in particular to an air collecting device used for recovering oil and gas from a refueling gun when refueling a motorcycle. Background Art

[0002] At present, my country's gas stations generally use a gas collection hood for fuel guns designed based on the fuel tank opening of automobiles. During the refueling process, the fuel gun and the fuel tank opening can be completely sealed, which can effectively prevent the volatilization of oil and gas. However, this gas collection hood cannot fit the fuel tank opening of a motorcycle. When refueling, there is a certain distance between the gas collection hood and the fuel tank opening of the motorcycle, which makes the gas collection hood ineffective and causes the oil and gas to escape directly into the atmosphere. Therefore, in view of the defects of the prior art, a gas collection device for a fuel gun that can recover oil and gas when refueling a motorcycle is developed. Summary of the invention

[0003] The utility model aims to provide a gas collecting device for a refueling gun in view of the defects of the prior art.

[0004] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:

[0005] A gas collecting device for a refueling gun comprises a first gas collecting hood provided with a cylindrical body; and a second gas collecting hood inserted into the cylindrical body and detachably connected to the cylindrical body.

[0006] Furthermore, the second air collecting hood is a straight-cylindrical hood.

[0007] Furthermore, the utility model provides a gas collecting device for a refueling gun further comprising a first clamp, which is sleeved on the cylindrical body, one end of the straight cover is inserted into the cylindrical body, and the first clamp is tightened, so that the cylindrical body and the straight cover are firmly connected.

[0008] Furthermore, a limiting boss is provided on the circumferential outer side surface of the straight-cylinder cover, and the limiting boss is used to limit the depth of the straight-cylinder cover inserted into the cylindrical body.

[0009] Furthermore, a second ring plate is provided on one end of the straight-tube cover away from the limiting boss, and the second ring plate protrudes outward relative to the side surface of the straight-tube cover.

[0010] Furthermore, the second air collecting hood is a telescopic hood.

[0011] Furthermore, the telescopic hood includes a corrugated hood body, one end of the corrugated hood body is provided with a shield tube, and the other end is provided with a reducer; an air guide cylinder, the circumferential side of the air guide cylinder is provided with a plurality of elastic parts at intervals and connected to the reducer; and a blocking ring, the blocking ring is installed on the top of the air guide cylinder; wherein the elastic parts protrude from the edge of the blocking ring, and when the air guide cylinder and the blocking ring are inserted into the cylindrical body, the cylindrical body simultaneously squeezes the plurality of elastic parts, and the plurality of elastic parts are supported on the inner side of the cylindrical body, so that the air guide cylinder is firmly connected to the cylindrical body.

[0012] Furthermore, the elastic member comprises a spring sheet, one end of which is mounted on the air guide cylinder, and the other end of which is inclined and extends downward and then bent into an arc toward the air guide cylinder.

[0013] Furthermore, an arc end is provided on one end of the spring sheet away from the blocking ring.

[0014] Furthermore, a third ring plate is provided at the bottom of the telescopic cover.

[0015] The utility model has the following improvements over the prior art:

[0016] The utility model adopts a spliced ​​gas collecting device, which can be extended in length relative to the existing gas collecting hood, and can be attached to the fuel tank port of a motorcycle to achieve the purpose of oil and gas recovery. That is, the first gas collecting hood and the second gas collecting hood are connected in a detachable manner. When refueling a motorcycle, the second gas collecting hood is put on the nozzle of the oil gun and then inserted into the first gas collecting hood, so that the second gas collecting hood and the first gas collecting hood are spliced, and the length of the gas collecting hood is increased. The second gas collecting hood can be attached to the fuel tank port of the motorcycle, which can prevent the oil and gas generated during refueling from being recovered by the refueling gun. When refueling a car, the second gas collecting hood is separated from the first gas collecting hood to prevent the second gas collecting hood from affecting the operation of the first gas collecting hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 This is a structural schematic diagram of a gas collecting device for a refueling gun of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the expanded structure;

[0020] Figure 3 Another structural schematic diagram of the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of the expanded structure;

[0022] Figure 5 for Figure 3 , 4 Structural schematic diagram of the middle lap joint;

[0023] Figure 6 for Figure 3-5 A schematic diagram of the structure of the elastic member;

[0024] Figure 7 This is a schematic diagram of the structure of the utility model installed on a refueling gun;

[0025] The names and serial numbers of the components in the figure are: 1-first air collecting hood, 101-cylinder, 102-first ring plate, 103-sleeve, 2-first clamp, 3-second clamp, 4-straight cover, 41-limiting boss, 42-second ring plate, 5-telescopic cover, 51-corrugated cover body, 52-reducing piece, 53-air guide cylinder, 54-elastic piece, 541-arc bending section, 542-arc end, 543-spring, 55-blocking ring, 56-shield tube, 57-third ring plate, 6-fuel gun, 61-fuel gun nozzle. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution in the present application, the technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0027] Embodiment 1:

[0028] like Figure 1-7 As shown, this embodiment is a gas collecting device for a fuel gun, which is used to recover oil and gas when refueling a motorcycle to prevent the oil and gas from escaping into the atmosphere. The structure adopted includes a first gas collecting hood 1 and a second gas collecting hood. The first gas collecting hood 1 is provided with a cylindrical body 101; the second gas collecting hood is inserted into the cylindrical body 101 and is detachably connected to the cylindrical body 101.

[0029] like Figure 7 As shown, the first air collecting hood 1 is fixedly mounted on the refueling gun via the second clamp 3 .

[0030] The second gas collecting hood can be a transparent structure, which can facilitate the refueling personnel to observe the refueling situation and prevent oil from spilling and splashing.

[0031] When the second air collecting hood is spliced ​​with the first air collecting hood 1, the length of the air collecting hood is increased, and the coverage of the fuel gun nozzle can be increased. When refueling the motorcycle's fuel tank, the second air collecting hood can be attached to the mailbox port, and the fuel gun nozzle of the fuel gun can be wrapped in a relatively closed space, which is conducive to oil and gas recovery and prevents oil and gas from escaping into the atmosphere.

[0032] It should be noted that when the motorcycle is not refueled, the second air collecting hood can be separated from the first air collecting hood, and the first air collecting hood can continue to remain on the refueling gun. When it can be used to refuel a car, the first air collecting hood can be attached to the fuel tank port of the car.

[0033] In some embodiments of the present disclosure, a structure of the second air collecting hood is provided, which may be a straight cylinder hood 4 .

[0034] like Figure 1 and 2 As shown, a connection structure between the straight cover and the first air collecting cover is provided, and a first clamp 2 is additionally installed. The first clamp 2 is sleeved on the cylinder 101, one end of the straight cover 4 is inserted into the cylinder 101, and the first clamp 2 is tightened, and the cylinder 101 and the straight cover 4 are tightly connected.

[0035] One end of the straight cover 4 for inserting into the cylindrical body 101 is rigid and will not be deformed when clamped by the first clamp; this end can be made of stainless steel, hard plastic or PPC.

[0036] It is understandable that the first clamp and the second clamp can be throat clamp structures. Therefore, the first clamp and the second clamp themselves have adjustable tightness function.

[0037] The straight cover 4 is fixedly connected to the cylindrical body 101 of the first air collecting cover through the first clamp 2, so that the straight cover and the first air collecting cover are spliced, and the length of the air collecting cover is increased, which can be suitable for covering the fuel tank opening of the motorcycle. When refueling the motorcycle, the fuel gun nozzle of the fuel gun is inserted into the fuel tank of the motorcycle through the fuel tank opening, and the straight cover 4 can be attached to the mailbox opening, so that the mailbox, the straight cover and the first air collecting cover form a relatively closed communication space, which is conducive to the fuel gun to recover the oil and gas generated during refueling and prevent the oil and gas from escaping into the atmosphere.

[0038] In some embodiments of the present disclosure, in order to limit the depth of the straight-cylindrical cover inserted into the first air collecting cover, a limiting boss 41 is added.

[0039] like Figure 1 and 2 As shown, a limiting boss 41 is provided on the circumferential outer side surface of the straight-tube cover 4 , and the limiting boss 41 is used to limit the depth of the straight-tube cover 4 inserted into the cylindrical body 101 .

[0040] When the straight-cylinder hood 4 is installed on the first air collecting hood 1, the end close to the limiting boss 41 is inserted into the cylindrical body 101 until the cylindrical body 101 touches the limiting boss 41, and then the straight-cylinder hood 4 is stopped from being inserted into the cylindrical body 101. Then, the first clamp 2 is adjusted to be tightened, so that the first clamp fixes the straight-cylinder hood 4 to the cylindrical body 101.

[0041] When disassembling, loosen the first clamp and the straight cover and the cylindrical body can be separated.

[0042] Furthermore, in order to increase the shielding area of ​​the straight tube cover, a second ring plate 42 is added. Figure 1 and 2 As shown, a second ring plate 42 is provided on one end of the straight cover 4 away from the limiting boss 41 , and the second ring plate 42 protrudes outward relative to the side surface of the straight cover 4 .

[0043] When the straight-cylinder cover covers the fuel tank opening of the motorcycle, the second ring plate 42 can cover the circumference of the fuel tank opening, which is more conducive to forming a closed space between the straight-cylinder cover and the fuel tank.

[0044] In some embodiments of the present disclosure, another structure of the second air collecting hood is provided. The second air collecting hood may be a telescopic hood 5 .

[0045] like Figure 3 , 4 As shown, the telescopic cover 5 includes a corrugated cover body 51, an air guide cylinder 53 and a blocking ring 55. A shield cylinder 56 is provided at one end of the corrugated cover body 51, and a reducing member 52 is provided at the other end; a plurality of elastic members 54 are installed at intervals on the circumferential side of the air guide cylinder 53 and connected to the reducing member 52; the blocking ring 55 is installed on the top of the air guide cylinder 53; the elastic member 54 protrudes from the edge of the blocking ring 55, and when the air guide cylinder 53 and the blocking ring 55 are inserted into the cylindrical body 101, the cylindrical body 101 squeezes the plurality of elastic members 54 at the same time, and the plurality of elastic members 54 are supported on the inner side of the cylindrical body 101, so that the air guide cylinder 53 is firmly connected to the cylindrical body 101.

[0046] It should be noted that the bellows 51 has a telescopic function, that is, the two ends of the bellows are pulled outward to achieve stretching. The two ends of the bellows are pressed toward each other to achieve contraction. The bellows can adjust the overall length of the telescopic cover.

[0047] It should also be noted that the air guide cylinder 53 will not be deformed when squeezed.

[0048] like Figure 4As shown, the diameter of the blocking ring 55 is larger than the diameter of the air guide cylinder 53, and the edge of the blocking ring protrudes outward relative to the air guide cylinder. The diameter of the blocking ring is slightly smaller than the inner diameter of the cylinder 101, which can facilitate the insertion of the blocking ring into the cylinder. When the blocking ring is inserted into the cylinder together with the air guide cylinder, when the blocking ring is inserted until the inner side surface of the first air collecting hood is supported, the air guide cylinder is stopped from being pushed into the cylinder. At this time, the blocking ring contacts the inner side surface of the first air collecting hood, which can facilitate the airtightness of the connection between the blocking ring and the first air collecting hood.

[0049] The elastic member has elastic deformation. When the air guide cylinder is inserted into the cylindrical body, the cylindrical body 101 squeezes the multiple elastic members 54 at the same time, and each elastic member undergoes elastic deformation. Therefore, the multiple elastic members 54 are supported on the inner side of the cylindrical body 101, so that the air guide cylinder 53 is tightly connected to the cylindrical body 101. The second air collecting hood is spliced ​​with the first air collecting hood, and the length of the air collecting hood is increased.

[0050] It is understandable that when the air guide cylinder is pulled out from the cylindrical body, the elastic member loses the squeezing effect of the cylindrical body and performs elastic deformation and restoration.

[0051] The telescopic cover 5 is detachably connected to the cylindrical body through a plurality of elastic members on the air guide cylinder 53 , that is, the telescopic cover is detachably connected to the first air collecting cover.

[0052] In some embodiments of the present disclosure, a structure of an elastic member is provided. Figure 6 As shown, the elastic member includes a spring sheet 543 , one end of which is mounted on the air guide cylinder 53 , and the other end of which extends downwardly and then bends into an arc toward the air guide cylinder 53 .

[0053] The spring piece 543 extends downward to form an arc-shaped bend section 541. When the air guide cylinder is inserted into the cylinder, the arc-shaped bend section contacts the inner side surface of the cylinder, so that the inner side surface of the cylinder is tangentially connected to the arc-shaped bend section, thereby avoiding the occurrence of sharp corners that may scratch the cylinder.

[0054] Furthermore, if Figure 6 As shown, an arc end 542 is provided on the end of the spring piece 543 away from the blocking ring 55 to prevent the spring piece from contacting the side of the gas guide cylinder with a sharp tip, thereby puncturing the gas guide cylinder.

[0055] Furthermore, if Figure 4 As shown, the bottom of the telescopic cover 5 is provided with a third ring plate 57. The range of the telescopic cover covering the oil tank opening can be increased.

[0056] How the telescopic cover works:

[0057] Splicing: Insert the air guide cylinder 53 and the blocking ring 55 into the cylindrical body 101 of the first air collecting hood 1, and stop pushing the air guide cylinder 53 until the blocking ring 55 contacts the inner side of the first air collecting hood. When the air guide cylinder 53 is inserted into the cylindrical body 101, the cylindrical body squeezes the multiple elastic members 54 on the air guide cylinder, and each elastic member is elastically deformed due to the squeezing, so the elastic member reversely supports the cylindrical body 101. When the air guide cylinder 53 stops being inserted, the elastic member reaches the maximum elastic deformation, and the supporting force of the elastic member corresponding to the cylindrical body reaches the maximum. Multiple elastic members simultaneously support the cylindrical body, and the air guide cylinder is fastened to the cylindrical body through multiple elastic members, so that the telescopic cover is spliced ​​on the first air collecting hood.

[0058] When refueling, the nozzle of the refueling gun is inserted into the fuel tank of the motorcycle, the third ring plate 57 on the telescopic cover fits around the fuel tank opening, and the shield tube 56 covers the top of the fuel tank opening, so that a connected closed space is formed between the fuel tank, the telescopic cover and the first air collecting cover, which can prevent oil and gas from escaping into the atmosphere and being effectively absorbed by the refueling gun.

[0059] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A gas collecting device for a refueling gun, characterized in that: include A first air collecting hood (1), wherein the first air collecting hood (1) is provided with a cylindrical body (101); and A second air collecting hood is inserted into the cylindrical body (101) and is detachably connected to the cylindrical body (101).

2. The gas collecting device for a fueling gun according to claim 1, characterized in that: The second air collecting hood is a straight-cylindrical hood (4).

3. The gas collecting device for a fueling gun according to claim 2, characterized in that: It also comprises a first clamp (2), wherein the first clamp (2) is sleeved on the cylindrical body (101), one end of the straight-cylinder cover (4) is inserted into the cylindrical body (101), and the first clamp (2) is tightened, so that the cylindrical body (101) and the straight-cylinder cover (4) are firmly connected.

4. The gas collecting device for a refueling gun according to claim 2 or 3, characterized in that: A limiting boss (41) is provided on the circumferential outer side surface of the straight-cylinder cover (4), and the limiting boss (41) is used to limit the depth of the straight-cylinder cover (4) inserted into the cylindrical body (101).

5. The gas collecting device for a fueling gun according to claim 4, characterized in that: A second ring plate (42) is provided on one end of the straight-tube cover (4) away from the limiting boss (41), and the second ring plate (42) protrudes outward relative to the side surface of the straight-tube cover (4).

6. The gas collecting device for a fueling gun according to claim 1, characterized in that: The second air collecting hood is a telescopic hood (5).

7. The gas collecting device for a fueling gun according to claim 6, characterized in that: The telescopic cover (5) comprises A corrugated cover body (51), wherein a shielding tube (56) is provided at one end of the corrugated cover body (51) and a reducing piece (52) is provided at the other end; An air guide cylinder (53), wherein a plurality of elastic members (54) are installed at intervals on the circumferential side surface of the air guide cylinder (53) and connected to the reducing member (52); and A blocking ring (55), wherein the blocking ring (55) is mounted on the top end of the air guide cylinder (53); The elastic member (54) protrudes from the edge of the blocking ring (55). When the air guide cylinder (53) and the blocking ring (55) are inserted into the cylindrical body (101), the cylindrical body (101) squeezes the plurality of elastic members (54) at the same time, and the plurality of elastic members (54) are supported on the inner side surface of the cylindrical body (101), so that the air guide cylinder (53) and the cylindrical body (101) are firmly connected.

8. The gas collecting device for a fueling gun according to claim 7, characterized in that: The elastic member comprises a spring sheet (543), one end of which is mounted on the air guide cylinder (53), and the other end of which is inclined downward and then bent into an arc toward the air guide cylinder (53).

9. The gas collecting device for a fueling gun according to claim 8, characterized in that: An arc end (542) is provided on the end of the spring piece (543) away from the blocking ring (55).

10. The gas collecting device for a fueling gun according to any one of claims 6 to 9, characterized in that: A third ring plate (57) is provided at the bottom of the telescopic cover (5).

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