Fuel tank oil filling pipe opening structure with oil gas recovery function

Abstract

The utility model provides a fuel tank oil filling pipe opening structure with an oil gas recovery function, belongs to the technical field of fuel tank oil filling pipe openings, and aims to solve the problems that oil gas is directly discharged to intensify pollution and waste energy due to the fact that the design of the fuel tank oil filling pipe opening lacks an oil gas recovery mechanism. Comprising a nozzle body; a sealing assembly and a fixing structure are fixedly arranged in the pipe opening body, and the fixing structure is located above the sealing assembly. A pressure applying assembly is fixedly arranged on the inner side of the fixing ring, and an oil gas recycling structure is fixedly arranged on one side of the pipe opening body. The elastic ring and the elastic rubber sheet are arranged, so that the gun nozzle can be completely wrapped by the elastic ring when the gun nozzle of the oil gun is inserted into the pipe orifice main body; meanwhile, a large amount of oil gas generated in the refueling process can be pumped into the carbon tank through the cylinder frame and the recovery cover by utilizing the oil gas recovery structure; and recovery and secondary utilization of a large amount of oil gas generated in the refueling process are facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of fuel tank refueling pipe inlet, and in particular relates to a fuel tank refueling pipe inlet structure with oil vapor recovery function. Background Technology

[0002] The fuel filler hose is a key component of the fuel tank system. It connects the refueling equipment to the inside of the fuel tank, allowing fuel to enter the tank smoothly and safely. During refueling, a large amount of fuel vapor is generated due to fuel evaporation and changes in internal pressure.

[0003] Currently, the widely adopted fuel tank refueling hose design has a significant flaw: the lack of a vapor recovery mechanism. This deficiency allows a large amount of fuel vapor generated during refueling to be released directly into the atmosphere through the hose, exacerbating environmental pollution and resulting in the unnecessary waste of valuable energy resources. Even more inconvenient is the fact that the existing refueling hose design fails to adequately consider the need for fixing and securing the refueling nozzle. This design flaw easily leads to accidental contact between the nozzle tip and the hose wall, affecting the smoothness of the refueling operation and significantly reducing refueling efficiency. Utility Model Content

[0004] In view of this, the present invention aims to propose a fuel tank refueling pipe inlet structure with oil and gas recovery function, so as to at least solve one of the problems in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A fuel tank refueling pipe inlet structure with oil and gas recovery function includes an inlet body; a fixing ring is fixedly installed on the top of the inlet body, and a bolt rod is fixedly installed on the top of the fixing ring, and the bolt rods are arranged in a ring array; a clamping nut is installed on the outer side of the top of the bolt rod through a threaded connection; an auxiliary ring is movably installed on the outer side of the bolt rod, and the top of the auxiliary ring is in contact with the top of the clamping nut.

[0007] The main body of the pipe opening is internally equipped with a sealing component and a fixing structure, with the fixing structure located above the sealing component. The sealing component includes a sealing ring frame and a sealing groove A. The sealing ring frame is fixedly installed inside the main body of the pipe opening. The sealing groove A is located inside the bottom side of the sealing ring frame. A pressure-applying component is fixedly installed inside the fixing ring, and an oil and gas recovery structure is fixedly installed on one side of the main body of the pipe opening. The oil and gas recovery structure includes a fixed pipe A, a fixed pipe B, a recovery pipe, and a cylinder frame. The fixed pipe A is fixedly installed inside one side of the main body of the pipe opening, and is located below the sealing ring frame. The fixed pipe B is fixedly installed inside one side of the main body of the pipe opening, and both the fixed pipe B and the fixed pipe A are inclined, with the fixed pipe B located above the sealing ring frame. The recovery pipe is fixedly installed between the fixed pipe A and the fixed pipe B. The cylinder frame is fixedly installed at the top of the recovery pipe.

[0008] Furthermore, a circular ring is held between the fixed ring and the auxiliary ring, and the circular ring is located outside the bolt rod; an elastic rubber sheet is fixedly installed inside the circular ring, and an elastic ring is fixedly installed inside the elastic rubber sheet.

[0009] Furthermore, the pressure application component includes: a support ring, a pressure groove, a pressure ring, and a pressure strip; the support ring is fixedly disposed inside the fixed ring, and the top of the support ring is in contact with the bottom of the elastic rubber sheet; the pressure groove is opened inside the top side of the support ring; the pressure ring is fixedly disposed inside the auxiliary ring, and the bottom of the pressure ring is in contact with the top of the elastic rubber sheet; the pressure strip is fixedly disposed at the bottom of the pressure ring, and the pressure strip is located directly above the pressure groove.

[0010] Furthermore, the sealing assembly also includes: a fixed seat, a rotating shaft, a sealing plate, and a sealing strip A; the fixed seat is fixedly disposed at the bottom of the sealing ring frame; the rotating shaft is rotatably disposed inside the fixed seat, and a torsion spring is disposed between the outer side of the rotating shaft and the inside of the fixed seat; one side of the sealing plate is fixedly disposed outside the rotating shaft, and the top of the sealing plate is in contact with the bottom of the sealing ring frame; the sealing strip A is fixedly disposed outside the sealing plate, and the sealing strip A is movably disposed inside the sealing groove A.

[0011] Furthermore, the fixing structure includes: a fixing cylinder, a sliding rod, a baffle, and a fixing block; the fixing cylinder is fixedly disposed inside the main body of the pipe opening; the sliding rod is slidably disposed inside the fixing cylinder; the baffle is fixedly disposed at one end of the sliding rod and is slidably disposed inside the fixing cylinder; a spring is disposed between the baffle and the inside of the fixing cylinder, and four sets of the baffle, the sliding rod, and the fixing cylinder are symmetrically disposed; the fixing block is fixedly disposed between two sets of sliding rods, and the fixing block is configured as an arc-shaped structure; two sets of fixing blocks are symmetrically disposed, and the top of the fixing block is configured as a beveled structure.

[0012] Furthermore, the oil and gas recovery structure also includes: a recovery hood and a fan; the recovery hood is fixedly installed on the outside of the cylinder frame, and the recovery hood is connected to the carbon canister inlet through a connecting pipe, and the recovery hood is configured as a conical structure; the fan is fixedly installed inside the cylinder frame.

[0013] Compared with the prior art, the fuel tank refueling pipe inlet structure with oil and gas recovery function described in this utility model has the following beneficial effects:

[0014] (1) The fuel tank refueling pipe opening structure with oil and gas recovery function described in this utility model, by setting an elastic ring and an elastic rubber sheet, can make the elastic ring completely wrap the nozzle when the nozzle of the fuel gun is inserted into the main body of the pipe opening; it is beneficial to prevent a large amount of oil and gas generated during the refueling process from being directly released into the atmosphere through the refueling pipe opening; at the same time, by using the fan and fixed pipe A and fixed pipe B and recovery pipe, a large amount of oil and gas generated during the refueling process can be drawn into the carbon canister through the cylinder frame and recovery cover; it is beneficial to recover and reuse a large amount of oil and gas generated during the refueling process.

[0015] (2) The fuel tank refueling pipe opening structure with oil and gas recovery function described in this utility model, by setting spring components, baffles and sliding rods, can enable two sets of fixing blocks to clamp and fix the fuel nozzle, which helps to prevent the fuel nozzle from accidentally contacting the refueling pipe wall; it can ensure the smoothness and efficiency of refueling operation; by using the rotating shaft and torsion spring components, the sealing plate can be automatically reset when the fuel nozzle is pulled out of the pipe opening body; so that the sealing plate can seal the pipe opening body through the sealing strip A, the sealing groove A and the sealing ring frame; it can effectively prevent fuel leakage and overflow after refueling; and enhance the practicality of the pipe opening structure. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the main body of the pipe opening of this utility model;

[0019] Figure 3 This is a schematic diagram of the upper surface structure of the fixing ring of this utility model;

[0020] Figure 4 This is a schematic diagram of the lower surface structure of the pressure ring of this utility model;

[0021] Figure 5This is a schematic diagram of the structure of the elastic rubber sheet and elastic ring of this utility model;

[0022] Figure 6 This is a schematic diagram of the opening structure of the closed plate of this utility model;

[0023] Figure 7 This is a schematic diagram of the oil and gas recovery structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the fixed structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Pipe body; 101. Fixing ring; 102. Bolt rod; 103. Compression nut; 104. Auxiliary ring; 105. Circular ring; 106. Elastic rubber sheet; 107. Elastic ring;

[0027] 2. Pressure application assembly; 201. Support ring; 202. Pressure groove; 203. Pressure ring; 204. Pressure strip;

[0028] 3. Enclosure assembly; 301. Enclosure ring frame; 302. Sealing groove A; 303. Fixing base; 304. Rotating shaft; 305. Enclosure plate; 306. Sealing strip A;

[0029] 4. Fixed structure; 401. Fixed cylinder; 402. Sliding rod; 403. Baffle; 404. Fixed block;

[0030] 5. Oil and gas recovery structure; 501. Fixed pipe A; 502. Fixed pipe B; 503. Recovery pipe; 504. Frame; 505. Recovery cover; 506. Fan. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] Example 1:

[0034] As attached Figure 1 To be continued Figure 8 As shown:

[0035] This utility model provides a fuel tank refueling pipe inlet structure with oil and gas recovery function, including a pipe inlet body 1; a fixing ring 101 is fixedly provided on the top of the pipe inlet body 1, and a bolt rod 102 is fixedly provided on the top of the fixing ring 101, and the bolt rods 102 are arranged in a ring array; a clamping nut 103 is provided on the outer side of the top of the bolt rod 102 through a threaded connection; an auxiliary ring 104 is movably provided on the outer side of the bolt rod 102, and the top of the auxiliary ring 104 is in contact with the top of the clamping nut 103;

[0036] In this embodiment, a sealing component 3 and a fixing structure 4 are fixedly disposed inside the main body 1 of the pipe opening, and the fixing structure 4 is located above the sealing component 3; the sealing component 3 includes: a sealing ring frame 301 and a sealing groove A302; the sealing ring frame 301 is fixedly disposed inside the main body 1 of the pipe opening; the sealing groove A302 is opened inside the bottom side of the sealing ring frame 301; a pressure applying component 2 is fixedly disposed inside the fixing ring 101, and an oil and gas recovery structure 5 is fixedly disposed on one side of the main body 1 of the pipe opening; the oil and gas recovery structure 5 includes: a fixing pipe A501, a fixing pipe B502, a recovery pipe 503, a cylinder frame 504, a recovery cover 505, and a fan 506; the fixing pipe A501 is fixed The fixed pipe A501 is located below the closed ring frame 301 and is located inside one side of the main body 1 of the pipe opening; the fixed pipe B502 is fixedly installed inside one side of the main body 1 of the pipe opening, and both the fixed pipe B502 and the fixed pipe A501 are inclined, with the fixed pipe B502 located above the closed ring frame 301; the recovery pipe 503 is fixedly installed between the fixed pipe A501 and the fixed pipe B502; the cylinder frame 504 is fixedly installed at the top of the recovery pipe 503; the recovery hood 505 is fixedly installed outside the cylinder frame 504, and the recovery hood 505 is connected to the carbon canister inlet through a connecting pipe, and the recovery hood 505 is designed with a conical structure; the fan 506 is fixedly installed inside the main body 1 of the pipe opening. Inside the cylinder frame 504; a circular ring 105 is held between the fixing ring 101 and the auxiliary ring 104, and the circular ring 105 is located outside the bolt rod 102; an elastic rubber sheet 106 is fixedly installed inside the circular ring 105, and an elastic ring 107 is fixedly installed inside the elastic rubber sheet 106; the pressure assembly 2 includes: a support ring 201, a pressure groove 202, a pressure ring 203, and a pressure strip 204; the support ring 201 is fixedly installed inside the fixing ring 101, and the top of the support ring 201 is in contact with the bottom of the elastic rubber sheet 106; the pressure groove 202 is opened inside the top side of the support ring 201; the pressure ring 203 is fixedly installed inside the auxiliary ring 104, and the pressure ring 204 is fixedly installed inside the auxiliary ring 104, and the pressure ring 205 ... 3. The bottom is in contact with the top of the elastic rubber sheet 106; the pressure strip 204 is fixedly set at the bottom of the pressure ring 203, and the pressure strip 204 is located directly above the pressure groove 202; its specific function is: by setting the elastic ring 107 and the elastic rubber sheet 106, when the nozzle of the fuel gun is inserted into the main body of the pipe opening 1, the elastic ring 107 can completely wrap the nozzle; it is beneficial to prevent a large amount of oil and gas generated during the refueling process from being released directly into the atmosphere through the refueling pipe opening; at the same time, by using the fan 506 and the fixed pipe A501 and the fixed pipe B502 and the recovery pipe 503, a large amount of oil and gas generated during the refueling process can be drawn into the carbon canister through the cylinder frame 504 and the recovery cover 505.

[0037] Example 2:

[0038] As attached Figure 2 With appendix Figure 6As shown: Based on Embodiment 1, the sealing assembly 3 further includes: a fixed base 303, a rotating shaft 304, a sealing plate 305, and a sealing strip A306; the fixed base 303 is fixedly disposed at the bottom of the sealing ring frame 301; the rotating shaft 304 is rotatably disposed inside the fixed base 303, and a torsion spring is disposed between the outer side of the rotating shaft 304 and the inside of the fixed base 303; one side of the sealing plate 305 is fixedly disposed outside the rotating shaft 304, and the top of the sealing plate 305 is in contact with the bottom of the sealing ring frame 301; the sealing strip A306 is fixedly disposed outside the sealing plate 305, and the sealing strip A306 is movably disposed inside the sealing groove A302; its specific function is: by using the rotating shaft 304 and the torsion spring, the sealing plate 305 can be automatically reset when the nozzle of the fuel dispenser is pulled out of the pipe body 1; so that the sealing plate 305 seals the pipe body 1 through the sealing strip A306, the sealing groove A302, and the sealing ring frame 301.

[0039] Example 3:

[0040] As attached Figure 2 With appendix Figure 8 As shown: Based on Embodiment 1 and Embodiment 2, the fixing structure 4 includes: a fixing cylinder 401, a sliding rod 402, a baffle 403, and a fixing block 404; the fixing cylinder 401 is fixedly disposed inside the pipe body 1; the sliding rod 402 is slidably disposed inside the fixing cylinder 401; the baffle 403 is fixedly disposed at one end of the sliding rod 402, and the baffle 403 is slidably disposed inside the fixing cylinder 401; a spring is disposed between the baffle 403 and the inside of the fixing cylinder 401, and the baffle 403 and the sliding rod 404 are... 02 and the fixed cylinder 401 are symmetrically arranged in four sets; the fixed block 404 is fixedly arranged between the two sets of sliding rods 402, and the fixed block 404 is set with an arc-shaped structure; the fixed block 404 is symmetrically arranged in two sets, and the top of the fixed block 404 is set with a beveled structure; its specific function is: by setting the spring, the baffle 403 and the sliding rod 402, the two sets of fixed blocks 404 can clamp and fix the nozzle of the fuel gun, which helps to prevent the nozzle of the fuel gun from accidentally contacting the wall of the fuel pipe.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In this invention, during use, the nozzle of the refueling gun is inserted into the elastic ring 107, causing the nozzle to push open the sealing plate 305. The elastic ring 107 uses its elasticity to wrap around the nozzle. When the refueling gun is inserted, the nozzle uses the top bevel of the fixing block 404 to push open the fixing block 404. The fixing block 404 uses the sliding rod 402, the baffle 403, and the spring to press and fix the nozzle. When oil vapor is generated during the refueling process, the elastic rubber sheet 106 and the elastic ring 107 prevent the oil vapor from being released directly into the atmosphere through the port of the main body 1. The fan 506 is activated, and the fan 506 uses the fixed pipe A501, the fixed pipe B502, and the recovery pipe. 503 and the cylinder frame 504 draw the oil vapor into the recovery hood 505, allowing the oil vapor to enter the carbon canister for storage. When the engine starts, the carbon canister solenoid valve opens, and the gasoline vapor is drawn into the combustion chamber under the vacuum in the intake manifold to participate in combustion, thereby realizing the secondary utilization of fuel. When the refueling is completed and the refueling nozzle is pulled out, the sealing plate 305 automatically resets through the torsion spring and the rotating shaft 304, so that the sealing plate 305 seals the main body 1 of the pipe opening through the sealing strip A306, the sealing groove A302, and the sealing ring frame 301. The auxiliary ring 104 can be disassembled by using the clamping nut 103 and the bolt rod 102, which is convenient for disassembling and replacing the elastic rubber sheet 106 and the elastic ring 107.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fuel tank refueling pipe inlet structure with vapor recovery function, characterized in that, include: The main body of the pipe opening (1) is fixedly provided with a fixing ring (101) at the top, and a bolt rod (102) is fixedly provided at the top of the fixing ring (101), and the bolt rods (102) are arranged in a ring array; a clamping nut (103) is provided on the outer side of the top of the bolt rod (102) through a threaded connection; an auxiliary ring (104) is movably provided on the outer side of the bolt rod (102), and the top of the auxiliary ring (104) is in contact with the top of the clamping nut (103); The main body (1) of the pipe is fixedly provided with a sealing component (3) and a fixing structure (4), and the fixing structure (4) is located above the sealing component (3); A pressure-applying component (2) is fixedly installed inside the fixed ring (101), and an oil and gas recovery structure (5) is fixedly installed on one side of the main body (1).

2. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The sealing component (3) includes: a sealing ring frame (301) and a sealing groove A (302); the sealing ring frame (301) is fixedly installed inside the main body (1) of the pipe opening; the sealing groove A (302) is opened inside the bottom side of the sealing ring frame (301).

3. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The oil and gas recovery structure (5) includes: a fixed pipe A (501), a fixed pipe B (502), a recovery pipe (503), and a cylinder frame (504); the fixed pipe A (501) is fixedly installed inside one side of the main body (1) of the pipe opening, and the fixed pipe A (501) is located below the closed ring frame (301); the fixed pipe B (502) is fixedly installed inside one side of the main body (1) of the pipe opening, and both the fixed pipe B (502) and the fixed pipe A (501) are inclined, and the fixed pipe B (502) is located above the closed ring frame (301); the recovery pipe (503) is fixedly installed between the fixed pipe A (501) and the fixed pipe B (502); the cylinder frame (504) is fixedly installed at the top of the recovery pipe (503).

4. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: A circular ring (105) is held between the fixed ring (101) and the auxiliary ring (104), and the circular ring (105) is located outside the bolt rod (102); an elastic rubber sheet (106) is fixedly provided inside the circular ring (105), and an elastic ring (107) is fixedly provided inside the elastic rubber sheet (106).

5. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The pressure application component (2) includes: a support ring (201), a pressure groove (202), a pressure ring (203), and a pressure strip (204); the support ring (201) is fixedly disposed inside the fixed ring (101), and the top of the support ring (201) is in contact with the bottom of the elastic rubber sheet (106); the pressure groove (202) is opened inside the top side of the support ring (201); the pressure ring (203) is fixedly disposed inside the auxiliary ring (104), and the bottom of the pressure ring (203) is in contact with the top of the elastic rubber sheet (106); the pressure strip (204) is fixedly disposed at the bottom of the pressure ring (203), and the pressure strip (204) is located directly above the pressure groove (202).

6. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The sealing assembly (3) further includes: a fixed seat (303), a rotating shaft (304), a sealing plate (305), and a sealing strip A (306); the fixed seat (303) is fixedly disposed at the bottom of the sealing ring frame (301); the rotating shaft (304) is rotatably disposed inside the fixed seat (303), and a torsion spring is disposed between the outer side of the rotating shaft (304) and the inside of the fixed seat (303); one side of the sealing plate (305) is fixedly disposed outside the rotating shaft (304), and the top of the sealing plate (305) is in contact with the bottom of the sealing ring frame (301); the sealing strip A (306) is fixedly disposed outside the sealing plate (305), and the sealing strip A (306) is movably disposed inside the sealing groove A (302).

7. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The fixing structure (4) includes: a fixing cylinder (401), a sliding rod (402), a baffle (403), and a fixing block (404); the fixing cylinder (401) is fixedly installed inside the main body (1) of the pipe opening; the sliding rod (402) is slidably installed inside the fixing cylinder (401); the baffle (403) is fixedly installed at one end of the sliding rod (402), and the baffle (403) is slidably installed inside the fixing cylinder (401); a spring is provided between the baffle (403) and the inside of the fixing cylinder (401), and four sets of the baffle (403), the sliding rod (402), and the fixing cylinder (401) are symmetrically arranged; the fixing block (404) is fixedly installed between two sets of sliding rods (402), and the fixing block (404) is set as an arc-shaped structure; two sets of the fixing blocks (404) are symmetrically arranged, and the top of the fixing block (404) is set as a beveled structure.

8. The fuel tank refueling pipe inlet structure with oil and gas recovery function according to claim 1, characterized in that: The oil and gas recovery structure (5) further includes: a recovery hood (505) and a fan (506); the recovery hood (505) is fixedly installed on the outside of the cylinder frame (504), and the recovery hood (505) is connected to the carbon canister inlet through a connecting pipe, and the recovery hood (505) is set as a conical structure; the fan (506) is fixedly installed inside the cylinder frame (504).

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