High-pressure oil tank convenient to assemble

Abstract

The utility model relates to a high-pressure oil tank convenient to assemble, which is characterized in that an integral washboard frame is integrally connected in an oil tank shell in a blow molding manner, two side plate frames are connected into an integral structure through a middle connecting frame, and the outer side and / or the inner side of any side plate frame are / is connected with more than one supporting column; the inner side of the supporting column is attached to the outer side face or the inner side face of the side plate frame of the integral type washboard frame in a matched mode through the cross section shape, and the outer side of the supporting column is connected with a clamping opening or a clamping head on the side edge of the integral type washboard frame in a clamped mode through more than one clamping plate matched with the supporting column in cross section shape in the axial direction of the supporting column. The structure is simple and compact, rapid and stable assembly is facilitated, and the high requirements of blow molding quality and aging are met.

Description

Technical Field

[0001] This utility model relates to the field of fuel tanks, specifically a high-pressure fuel tank that is easy to assemble. Background Technology

[0002] With the implementation of the China VI emission standard (Phase b), the control requirements for fuel evaporation emissions have significantly increased. Traditional gasoline vehicles rely on carbon canisters to adsorb vapors, but the capacity of carbon canisters is limited. High-pressure fuel tanks, through structural reinforcement and intelligent valve linkage such as the FTIV isolation valve, achieve dynamic vapor sealing and directional emission, overcoming the bottleneck of adapting atmospheric pressure fuel tanks to hybrid vehicles. In existing high-pressure fuel tank structures, various components such as baffles, liquid collectors, and various exhaust valves and pipelines are built-in. These components are directly blow-molded and connected to the inner wall of the tank during the fuel tank blow molding process. During the blow molding operation, each component needs to be installed individually, affecting the blow molding time and efficiency. The long installation time of multiple components can easily affect the temperature of the blow-molded material and subsequent molding. At the same time, connecting multiple components to the inner wall of the high-pressure fuel tank has a significant impact on the overall thickness of the tank and the thickness and strength of the connection parts, which is not conducive to the stability of the blow molding quality of the high-pressure fuel tank. Summary of the Invention

[0003] This utility model provides a high-pressure oil tank that is compact in structure, easy to assemble, and stable.

[0004] The technical solution adopted by this utility model is: a high-pressure oil tank that is easy to assemble, wherein an integral baffle frame is blow-molded and connected to the outer shell of the oil tank. Two or more support columns are vertically arranged on the integral baffle frame. The upper and lower end faces of the support columns are integrally blow-molded and connected to the inner wall of the high-pressure oil tank. The integral baffle frame is characterized in that: the integral baffle frame consists of two side panels connected by a central connecting frame to form an integral structure. One or more support columns are connected to the outer and / or inner side of either side panel. The inner side of the support column is fitted to the outer or inner side of the side panel of the integral baffle frame through a cross-sectional shape matching the support column. The outer side of the support column is connected to the side of the integral baffle frame through a clamp or a clamp head or a clamp head that is aligned with the support column along the axial direction and cross-sectional shape of the support column.

[0005] Furthermore, the outer side of the support column is provided with upper and lower clamping plates. Each clamping plate has a clamping head on both sides of the support column. The clamping head has a clamping head groove or clamping head rib along the axial direction of the support column on the side of the side plate frame. The clamping head groove or clamping head rib is inserted into the side rib or side groove on the side of the side plate frame. The clamping head is also provided with a clamping slot or elastic clamping head. The clamping slot or clamping head is inserted into the elastic clamping head or clamping slot on the side of the side plate frame. The elastic clamping heads of the upper and lower clamping plates or the elastic clamping heads on the side of the side plate frame corresponding to the clamping heads of the upper and lower clamping plates are facing away from each other or towards each other.

[0006] Furthermore, one or more GVV gravity valves and liquid collectors are fixedly connected to the integral wave deflector frame. The GVV gravity valve is connected to the liquid collector via an exhaust pipe. The liquid collector is connected to an FLVV refueling and exhaust valve. The liquid collector is also fixedly connected to an exhaust connector on the integral wave deflector frame via a vent pipe, which is connected to a ventilation pipe outside the high-pressure oil tank. The exhaust pipe and vent pipe are fixedly fastened by a clamp set on the integral wave deflector frame.

[0007] Furthermore, a snap-fit ​​bracket is fitted onto the GVV gravity valve. The snap-fit ​​bracket has a snap-fit ​​groove running vertically on its outer side. An upward-facing elastic snap head is also provided on the outer side of the snap-fit ​​bracket on one side of the snap-fit ​​groove. A snap head bracket is provided on the integral baffle frame corresponding to the GVV gravity valve. A guide plug is provided on the inner side of the snap head bracket and inserted into the snap-fit ​​groove. The snap head bracket is also provided with a snap head baffle that is higher than the guide plug and corresponds to the downward-pressing elastic snap head. Two or more snap-fit ​​ears are provided on the outer side of the liquid collector, and the snap-fit ​​ears are snapped into the snap ear bracket on the integral baffle frame.

[0008] Furthermore, the GVV gravity valve and liquid collector are not fixedly connected to the inner wall of the high-pressure oil tank.

[0009] Furthermore, two or more GVV gravity valves are respectively located on both sides of the integral wave deflector frame.

[0010] Furthermore, the two or more GVV gravity valves are installed at different heights on the integrated wave deflector frame.

[0011] Furthermore, the exhaust connector is a female or male connector that is inserted directly into the ventilation pipe.

[0012] Furthermore, the location where the support column is installed on the inner side of one of the two side panels is set to be parallel to the outer side of that side panel, and the location where the support column is installed on the inner side of the other side panel is set to be perpendicular to the inner side of either side panel.

[0013] Furthermore, the upper and lower end faces of the support column are integrally blow-molded with the high-pressure oil tank and are provided with multiple circumferentially distributed or arrayed protrusions or concave points, or with grid protrusions or grid grooves; the upper and lower end faces of the support column are provided with connecting seats, and the end faces of the connecting seats integrally blow-molded with the high-pressure oil tank are provided with multiple circumferentially distributed or arrayed protrusions or concave points, or with grid protrusions or grid grooves.

[0014] The beneficial effects of this utility model are:

[0015] 1. An integrated anti-surge plate frame is used to install the liquid collector, GVV gravity valve and various pipes, which facilitates quick installation during blow molding operations, improves blow molding efficiency, and ensures blow molding quality.

[0016] 2. Two or more GVV gravity valves are installed on both sides of the integrated baffle frame at different heights, which can better regulate the overall fuel supply and ensure the sealing and safety of the fuel system under the fuel tank under various vehicle conditions; and send the vapor into the collector, and return the fuel to the fuel tank through the FLVV refueling and venting valves and release it outward through the vent pipe, exhaust connector and ventilation pipe to ensure safe and stable pressure regulation of the high-pressure fuel tank.

[0017] 3. The integrated wave deflector frame adopts a structure where the two side panels are connected in the middle, providing excellent support and reinforcement for the fuel tank. Each side panel is connected to the upper and lower inner walls of the high-pressure fuel tank via support columns. This design, while providing wave deflection and noise reduction, also offers more stable support for the high-pressure fuel tank, improving its overall strength. Positioning the two support columns on the inner sides of the two side panels perpendicular to each other further enhances the structural strength of the integrated wave deflector frame and improves the support columns' resistance to the wave deflector frame. This, in turn, enhances the support performance of the support columns within the high-pressure fuel tank, comprehensively improving the structural stability within the high-pressure fuel tank.

[0018] 4. The inner side of the support column is fitted to the outer or inner side of the side plate frame through a cross-sectional shape matching, and a clamping plate with a matching cross-sectional shape is used to clamp it on the outer side. When the clamping head groove or rib corresponds to the side rib or groove of the side plate frame and is inserted, the elastic clamping head is restricted and released at the clamping position to clamp into the clamping hole, thereby completing the positioning and clamping of the clamping plate; there are two clamping plates, upper and lower, and the elastic clamping heads of the upper and lower clamping plates face opposite directions, which can better clamp and prevent the axial movement of the support column, further improving the positioning stability of the anti-surge plate after the support column is positioned in the high-pressure oil tank.

[0019] 5. The GVV gravity valve connector uses a snap-fit ​​bracket with snap-fit ​​grooves and elastic snap heads. These snap-fit ​​brackets work in conjunction with the guide plug on the snap head bracket of the integrated baffle frame, and the snap head baffle restricts the elastic snap head, enabling quick and easy installation of the GVV gravity valve on the integrated baffle frame. The liquid collector is also quick and easy to install by using hooks on snap-fit ​​ears that engage with the snap-fit ​​ears on the integrated baffle frame. Various exhaust pipes and vent pipes are directly snapped into place via the snap-fit ​​seats on the integrated baffle frame. The baffle is integrated with all components before being fed into the blow molding process, avoiding the need for individual components to be installed sequentially, thus ensuring the timeliness and quality control of the blow molding operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram showing the installation of the support column of this utility model on the outer side of the side plate frame;

[0022] Figure 3 This is a schematic diagram of the structure of the card plate and the outer side of the support column of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation of the GVV gravity valve of this utility model on the upper end of the integral anti-surge plate frame;

[0024] Figure 5 This is a schematic diagram showing the installation of the liquid collector of this utility model on the upper end of the integrated wave shield frame;

[0025] Figure 6 This is a schematic diagram of the overall structure of this utility model.

[0026] In the diagram: 1. Integrated wave deflector frame; 2. Side frame; 3. Central connecting frame; 4. Outer side; 5. Inner parallel surface; 6. Inner vertical surface; 7. Support column; 8. Connecting seat; 9. Protrusion; 10. Clamping plate; 11. Clamping head; 12. Clamping head groove; 13. Clamping head groove opening; 14. Side groove; 15. Side groove elastic clamping head; 16. GVV gravity valve; 17. Clamping bracket; 18. Clamping groove; 19. Clamping bracket elastic clamping head; 20. Clamping head bracket; 21. Guide plug; 22. Clamping head baffle; 23. Exhaust pipe; 24. Clamping seat; 25. Liquid collector; 26. Clamping ear; 27. Clamping ear bracket; 28. Vent pipe; 29. ​​Exhaust connector; 30. FLVV refueling exhaust valve; 31. Fuel tank shell. Detailed Implementation

[0027] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0028] Figure 1-6As shown: A conveniently assembled high-pressure oil tank includes an outer shell 31, an integral anti-surge baffle frame 1, support columns 7, a GVV gravity valve 16, a clamping head frame 20, an exhaust pipe 23, a clamping seat 24, a liquid collector 25, a clamping ear frame 27, a vent pipe 28, an exhaust connector 29, and an FLVV refueling and exhaust valve 30. The integral anti-surge baffle frame 1 is integrally connected to the outer shell 31 via blow molding. The integral anti-surge baffle frame 1 consists of two side frames 2 connected by a central connecting frame 3. A support column 7 is fitted to the outer surface 4 of each side frame 2. The inner parallel surface 5 of one side frame 2 is parallel to its outer surface 4. An inner vertical surface 6 perpendicular to its outer surface is provided on the inner side of the other side frame 2. A support column 7 is fitted to both the inner parallel surface 5 and the inner vertical surface 6. Connecting seats 8 are provided at the upper and lower ends of the four support columns 7. Multiple evenly distributed protrusions 9 on the outer end face of the connecting seats 8 connect to the high-pressure oil tank. The inner wall is integrally blow-molded; each support column has side grooves 14 on both sides of its mounting surface, with side groove elastic clips 15 inside each side groove 14. The two side groove clips 15 face outwards and back to back. Each support column 7 has two clips 10 on its outer side, one above the other, corresponding to the side grooves 14. Two clips 11 are set on both sides of each clip 10. Clips 11 have clip slots 12 corresponding to the side grooves 14. The clip slots 12 are staggered and engage with the side grooves 14. The side of the clip slots 12 facing the support column mounting surface has clip slot openings 13, and the side groove elastic clips 15 engage with the clip slot openings 13 (see...). Figure 2 , 3 ).

[0029] Figure 1 , 4 As shown, GVV gravity valves 16 with different heights are installed on the upper ends of the two side plates 2. A snap-fit ​​bracket 17 is sleeved on the GVV gravity valve 16. A snap-fit ​​groove 18 with an up-down direction is provided on the outside of the snap-fit ​​bracket 17. A snap-fit ​​bracket elastic snap-fit ​​head 19 with an upward opening is also provided on the outside of the snap-fit ​​bracket on one side of the snap-fit ​​groove 18. A snap-fit ​​head bracket 20 is provided on the side plate 2 of the integral wave deflector 1 corresponding to the outside of the GVV gravity valve 16. A guide plug 21 that is inserted into the snap-fit ​​groove 18 is provided on the inside of the snap-fit ​​head bracket 20. A snap-fit ​​head baffle 22 that is higher than the snap-fit ​​bracket elastic snap-fit ​​head 19 corresponding to the guide plug is also provided on the snap-fit ​​head bracket 20.

[0030] Figure 1 , 5 As shown, a liquid collector 25 is provided on the upper end of the plate frame 2 on any side, and two or more locking ears 26 are provided on the outside of the liquid collector 25. The locking ears 26 are locked to the locking ear bracket 27 on the integral wave-damping plate frame.

[0031] In this embodiment, the GVV gravity valve 16 is connected to the liquid collector 25 via the exhaust pipe 23. The liquid collector 25 is connected to the FLVV refueling exhaust valve 30. The liquid collector 25 is also connected to the exhaust connector 29, which is fixedly connected to the integral wave deflector frame and connected to the ventilation pipe outside the high-pressure oil tank, via the vent pipe 28. The exhaust pipe and the vent pipe are fixedly connected by the clamp 24 set on the integral wave deflector frame.

[0032] In this embodiment, the GVV gravity valve 16 and the liquid collector 25 are not fixedly connected to the inner wall of the high-pressure oil tank.

[0033] Based on this embodiment, the exhaust connector can be either a female connector or a male connector that is inserted into a ventilation pipe.

[0034] Based on this embodiment, the support column can be directly connected to the connecting seat structure, and the protrusions can be replaced with protruding ridges or grid grooves.

Claims

1. A high-pressure oil tank with convenient assembly, wherein an integral baffle frame is blow-molded and connected to the outer shell of the tank, and two or more support columns are vertically arranged on the integral baffle frame, the upper and lower end faces of the support columns being integrally blow-molded and connected to the inner wall of the high-pressure oil tank, characterized in that: The integral wave deflector frame consists of two side panels connected by a central connecting frame to form an integrated structure. Each side panel has one or more support columns connected to its outer and / or inner sides. The inner side of the support column is fitted to the outer or inner side of the integral wave deflector frame side panel with a cross-sectional shape that matches the support column. The outer side of the support column is connected to the side panel or slot of the integral wave deflector frame by one or more clamps that are axially aligned with the support column and have a cross-sectional shape that matches the support column.

2. The high-pressure oil tank with convenient assembly according to claim 1, characterized in that: The support column is provided with two clamping plates, upper and lower, on its outer side. Each clamping plate has a clamping head on both sides of the support column. The clamping head has a clamping head groove or clamping head rib along the axial direction of the support column on the side of the side plate frame. The clamping head groove or clamping head rib is inserted into the side rib or side groove on the side of the side plate frame. The clamping head is also provided with a locking slot or elastic clamping head, which is locked into the elastic clamping head or locking slot on the side of the side plate frame. The elastic clamping heads of the upper and lower clamping plates or the elastic clamping heads on the side of the side plate frame corresponding to the clamping heads of the upper and lower clamping plates are facing away from each other or towards each other.

3. The high-pressure oil tank with convenient assembly according to claim 1, characterized in that: One or more GVV gravity valves and liquid collectors are fixedly connected to the integral wave deflector frame. The GVV gravity valve is connected to the liquid collector via an exhaust pipe. The liquid collector is connected to an FLVV refueling and exhaust valve. The liquid collector is also connected to an exhaust connector on the integral wave deflector frame via a vent pipe, which is connected to a ventilation pipe outside the high-pressure oil tank. The exhaust pipe and vent pipe are fixedly connected by a clamp set on the integral wave deflector frame.

4. The high-pressure oil tank with convenient assembly according to claim 3, characterized in that: A snap-fit ​​bracket is fitted onto the GVV gravity valve. The snap-fit ​​bracket has a snap-fit ​​groove on its outer side, and an upward-facing elastic snap head is also provided on the outer side of the snap-fit ​​bracket on one side of the snap-fit ​​groove. A snap head bracket is provided on the integral baffle frame corresponding to the GVV gravity valve. A guide plug is provided on the inner side of the snap head bracket and inserted into the snap-fit ​​groove. The snap head bracket is also provided with a snap head baffle that is higher than the guide plug and corresponding to the downward-pressing elastic snap head. Two or more snap-fit ​​ears are provided on the outer side of the liquid collector, and the snap-fit ​​ears are snapped into the snap ear bracket on the integral baffle frame.

5. A high-pressure oil tank with convenient assembly according to claim 3, characterized in that: The GVV gravity valve and liquid collector are not fixedly connected to the inner wall of the high-pressure oil tank.

6. A high-pressure oil tank with convenient assembly according to claim 3, characterized in that: Two or more GVV gravity valves are installed on both sides of the integral wave deflector frame.

7. A high-pressure oil tank with convenient assembly according to claim 3, characterized in that: The two or more GVV gravity valves are installed at different heights on the integrated wave deflector frame.

8. A high-pressure oil tank with convenient assembly according to claim 3, characterized in that: The exhaust connector is either a female or male connector that is inserted into a ventilation pipe.

9. A high-pressure oil tank with convenient assembly according to claim 1, characterized in that: The location where the support column is installed on the inner side of either of the two side panels is set to be parallel to the outer side of that side panel, and the location where the support column is installed on the inner side of the other side panel is set to be perpendicular to the inner side of either of the two side panels.

10. A high-pressure oil tank with convenient assembly according to claim 1, 2, or 9, characterized in that: The upper and lower end faces of the support column are integrally blow-molded with the high-pressure oil tank and are provided with multiple circumferentially distributed or arrayed protrusions or concave points, or with grid protrusions or grid grooves; the upper and lower end faces of the support column are provided with connecting seats, and the end faces of the connecting seats integrally blow-molded with the high-pressure oil tank are provided with multiple circumferentially distributed or arrayed protrusions or concave points, or with grid protrusions or grid grooves.

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