Oil tank device with filter convenient to disassemble and assemble and storage vehicle

Abstract

The utility model provides an oil tank device with a filter convenient to disassemble and assemble and a storage vehicle. The oil tank device with the filter convenient to disassemble and assemble comprises a plastic oil tank and the filter. A fixing ring is embedded in the plastic oil tank, and a limiting protrusion extending outwards in the radial direction is formed at the first end, exposed out of the outer side of the plastic oil tank, of the fixing ring. The filter is inserted into the fixing ring and provided with a clamping groove extending in the circumferential direction and an insertion opening communicating with the clamping groove. The limiting protrusion of the fixing ring is inserted through the insertion opening and clamped into the clamping groove in a rotating mode. Limiting matching structures are arranged on the plastic oil tank and the filter, and after the limiting protrusions of the fixing ring are clamped into the clamping grooves, the limiting matching structures of the plastic oil tank and the filter correspond to each other and form rotary limiting matching. The purpose of simplifying the production assembly and after-sale maintenance steps is achieved, and then the production assembly cost and the after-sale maintenance time are saved.

Description

Technical Field

[0001] The utility model relates to the field of storage vehicles, in particular to a fuel tank device and a storage vehicle for conveniently disassembling and assembling a filter. Background Art

[0002] Storage vehicles are widely used in operating occasions such as warehouse storages, supermarkets, and factory workshops because of their flexibility, good passing performance and stability. At present, most of the hydraulic fuel tanks used in storage vehicles are plastic fuel tanks, which are processed by rotational molding. During the processing, corresponding nuts need to be embedded. The fuel tank is equipped with a filter. Generally, the filter comes with a flange, and the flange of the filter is locked and fixed with the embedded nuts on the fuel tank through two or more bolts.

[0003] This assembly method still follows the assembly method of metal fuel tanks. During the assembly process, two or more bolts are required for fixation, and the bolts play a pre-tightening force role, and corresponding torques need to be applied. When disassembling, due to the narrow space of the fuel tank of the storage vehicle, it is very inconvenient to replace the filter. Therefore, this solution is not convenient for production assembly and after-sales maintenance. Content of the Utility Model

[0004] Therefore, the utility model provides a fuel tank device and a storage vehicle for conveniently disassembling and assembling a filter. By optimizing the matching structure of the filter and the plastic fuel tank, the steps of production assembly and after-sales maintenance are simplified, thereby saving the production assembly cost and after-sales maintenance man-hours.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A fuel tank device for conveniently disassembling and assembling a filter includes a plastic fuel tank and a filter; a fixing ring is embedded in the plastic fuel tank, and a limiting protrusion extending radially outward is formed at a first end of the fixing ring exposed outside the plastic fuel tank; the filter is inserted into the fixing ring, and the filter has a slot extending in the circumferential direction and an insertion port communicating with the slot; the limiting protrusion of the fixing ring is inserted through the insertion port and is snapped into the slot by rotation; limiting and matching structures are arranged on both the plastic fuel tank and the filter, and after the limiting protrusion of the fixing ring is snapped into the slot, the limiting and matching structures of the plastic fuel tank and the filter correspond to each other and form a rotational limiting and matching.

[0007] Further, the number of sets of the matching between the limiting protrusion of the fixing ring and the slot of the filter is multiple groups; and they are spaced apart along the circumferential direction of rotation.

[0008] Further, the limiting protrusion is inclined in the circumferential direction of rotation so that the limiting protrusion is gradually clamped into the slot.

[0009] Further, the card slot is inclined in the circumferential direction of rotation so that the limiting protrusion is gradually clamped into the card slot.

[0010] Further, a connecting ring is provided on the filter, and the card slot and the insertion port are formed on the inner ring wall of the connecting ring; the connecting ring is also hermetically abutted against the plastic fuel tank through a sealing gasket.

[0011] Further, the sealing gasket is fixedly connected to the connecting ring.

[0012] Further, the plastic fuel tank is fixedly connected to the fixing ring through a rotational molding process; the fixing ring forms a radially outwardly bent insertion blade at the second end facing away from the first end, and the insertion blade is embedded in the body of the plastic fuel tank.

[0013] Further, the limiting and mating structure of the plastic fuel tank is a limiting blind hole, and the limiting and mating structure of the filter is a connecting hole provided on the filter flange; after the limiting protrusion of the fixing ring is inserted into the card slot, the connecting hole and the limiting blind hole correspond to each other, and a limiting member is further included. The limiting member is inserted through the corresponding connecting hole and limiting blind hole to form a rotational limiting fit to limit the rotation of the filter relative to the plastic fuel tank.

[0014] Further, the limiting member is a bolt, the connecting hole on the filter flange is a threaded hole, and the bolt is screwed into the connecting hole on the filter flange, and the bolt is inserted into or pulled out of the limiting blind hole by rotating the bolt forward and backward.

[0015] A warehousing vehicle at least includes the fuel tank device for conveniently disassembling and assembling the filter as described above.

[0016] Through the technical solution provided by the present utility model, the following beneficial effects are achieved:

[0017] A fixing ring is embedded on the plastic fuel tank, and the filter makes the limiting protrusion on the fixing ring be clamped into its card slot by rotation, and then the fixing is realized by forming a rotational limiting fit with the plastic fuel tank; when disassembly is required, the rotational limiting fit is released, and then the filter is rotated in the reverse direction to release the fixing; the structural cooperation is simple, and the disassembly and assembly operations are convenient; the purpose of simplifying the production assembly and after-sales maintenance steps is achieved, thereby saving the production assembly cost and after-sales maintenance man-hours. Description of the Drawings

[0018] Figure 1 Shown is a three-dimensional schematic diagram of the fuel tank device for conveniently disassembling and assembling the filter in the embodiment;

[0019] Figure 2 Shown is a partial structural decomposition schematic diagram of the fuel tank device for conveniently disassembling and assembling the filter in the embodiment;

[0020] Figure 3 The figure shows a partial structural schematic diagram of a plastic fuel tank in an embodiment;

[0021] Figure 4 The figure shows a partial structural sectional view of a fuel tank device for facilitating the disassembly and assembly of a filter in an embodiment;

[0022] Figure 5 The figure shows a partial structural sectional view of a filter in an embodiment;

[0023] Figure 6 The figure shows a structural schematic of a fixing ring in an embodiment Figure 1 ;

[0024] Figure 7 The figure shows a structural schematic of a fixing ring in an embodiment Figure 2 . Detailed implementation manners

[0025] To further illustrate each embodiment, the present invention provides drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] In the description of the present invention, the orientation or positional relationships such as "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] Now, the present invention will be further described in combination with the drawings and specific implementation manners.

[0028] Referring to Figures 1 to 7 as shown, a fuel tank device for facilitating the disassembly and assembly of a filter provided in this embodiment includes a plastic fuel tank 10 and a filter 20; a fixing ring 30 is embedded in the plastic fuel tank 10. Specifically, the plastic fuel tank 10 is fixedly connected with the fixing ring 30 through a rotational molding process, that is, the fixing ring 30 is placed in the mold in advance, and then the plastic fuel tank 10 is directly molded through the rotational molding process, so that the fixing ring 30 is embedded in the plastic fuel tank 10; the fixing ring 30 is used for installing the filter 20.

[0029] Specifically, the fixing ring 30 is made of a metal material with good strength; of course, in other embodiments, it can also be made of materials such as ceramics, etc.

[0030] A limiting protrusion 31 extending radially outward is formed at the first end of the fixing ring 30 exposed outside the plastic fuel tank 10. Specifically, the number of the limiting protrusions 31 is four, which are distributed at intervals in the circumferential direction. The filter 20 is inserted into the fixing ring 30. The filter 20 has a card slot 22 extending in the circumferential direction and an insertion port 21 communicating with the card slot 22. In this specific embodiment, the number of the card slots 22 is also four. The limiting protrusion 31 of the fixing ring 30 is inserted through the insertion port 21 and is snapped into the card slot 22 by rotation. That is, during assembly, the insertion port 21 of the filter 20 is aligned with the limiting protrusion 31 of the fixing ring 30 and inserted. After insertion, rotate (such as rotate clockwise) to snap the limiting protrusion 31 into the card slot 22. At this time, the filter 20 is only not restricted in the circumferential rotation direction relative to the plastic fuel tank 10.

[0031] Limiting and matching structures are provided on both the plastic fuel tank 10 and the filter 20. After the limiting protrusion 31 of the fixing ring 30 is snapped into the card slot 22, the limiting and matching structures of the plastic fuel tank 10 and the filter 20 correspond to each other and form a rotational limiting and matching to restrict and limit the circumferential rotation direction, realizing a firm assembly.

[0032] When disassembly is required, release the rotational limiting and matching, and then rotate the filter 20 in the reverse direction (such as rotate counterclockwise) to release the fixation. The structure matching is simple, and the assembly and disassembly operations are convenient, achieving the purpose of simplifying the production assembly and after-sales maintenance steps, thereby saving the production assembly cost and after-sales maintenance man-hours.

[0033] A connecting ring 23 is provided on the filter 20. The opening of the connecting ring 23 faces downward. The card slot 22 and the insertion port 21 are formed on the inner ring wall of the connecting ring 23. For example, a boss 27 protrudes inward on the inner ring wall of the connecting ring 23. The space between the boss 27 and the top wall of the connecting ring 23 is the card slot 22. The area without the boss 27 is the insertion port 21 connecting the card slot 22. The connecting ring 23 is also hermetically abutted against the plastic fuel tank 10 through a sealing gasket 24. That is, when the limiting protrusion 31 is snapped into the card slot 22 and fixed, the connecting ring 23 is hermetically abutted against the plastic fuel tank 10 through the sealing gasket 24.

[0034] Specifically, in this embodiment, the sealing gasket 24 is fixedly connected to the connecting ring 23 and is always connected to the filter 20, without the need for additional alignment operations. Of course, in other embodiments, the sealing gasket 24 can also be an independent structure.

[0035] The limiting protrusion 31 is inclined in the circumferential direction of rotation so that the limiting protrusion 31 is gradually clamped into the clamping groove 22. When the limiting protrusion 31 just starts to be inserted into the clamping groove 22, there is a large gap between the two, and at this time, it can be smoothly inserted. As it continues to be inserted, the gap between the limiting protrusion 31 and the clamping groove 22 gradually becomes smaller until frictional contact is formed, and finally it is clamped and fixed. At the same time, as the limiting protrusion 31 is clamped with the clamping groove 22, a downward pressing force can be provided for the connecting ring 23 to press the sealing gasket 24 against the plastic fuel tank 10.

[0036] The above-mentioned method of providing pre-tightening by setting the limiting protrusion 31 to be inclined is one of the more preferred solutions; of course, in other embodiments, the clamping groove 22 can also be inclined in the circumferential direction of rotation to achieve the same purpose. Or when the limiting protrusion 31 and the clamping groove 22 can form good pre-tightening at the beginning of the cooperation, it can also not be set to be inclined.

[0037] Further, the fixing ring 23 forms an inserting blade 32 that bends radially outward at the second end facing away from the first end. As shown in Figure 4 , Figure 6 and Figure 7 The outer periphery of the second end of the fixing ring 30 is evenly distributed with a plurality of inserting blades 32. The inserting blades 32 are embedded in the body of the plastic fuel tank 10, and after the plastic fuel tank 10 is rotomolded, a more firm fitting is achieved.

[0038] The limiting and mating structure of the plastic fuel tank 10 is a limiting blind hole 11, and the limiting and mating structure of the filter 20 is a connecting hole 26 provided on the filter flange 25; after the limiting protrusion 31 of the fixing ring 30 is inserted into the clamping groove 22, the connecting hole 26 and the limiting blind hole 11 correspond to each other. It also includes a limiting member 40. The limiting member 40 is inserted into the corresponding connecting hole 26 and limiting blind hole 11, thereby forming a rotational limiting and mating to limit the rotation of the filter 20 relative to the plastic fuel tank 10. When it needs to be released, the limiting member 40 is pulled out of the limiting blind hole 11.

[0039] More specifically, in this embodiment, the limiting member 40 is a bolt, the connecting hole 26 on the filter flange 25 is a threaded hole, and the bolt is screwed into the connecting hole 26 on the filter flange 25, and the bolt is inserted into or pulled out of the limiting blind hole 11 by rotating the bolt forward and backward. The limiting member 40 adopts the structure of a bolt and forms a screw connection with the connecting hole 26, which can well realize the fixation of the limiting member 40 and prevent the limiting member 40 from falling off.

[0040] Of course, in other embodiments, the rotational limit cooperation structure of the plastic fuel tank 10 and the filter 20 can also be replaced by other structures; for example, the limit cooperation structure of the plastic fuel tank 10 is a buckle, and the limit cooperation structure on the filter 20 is a bayonet; when the filter 20 is snapped in place, the bayonet corresponds to the buckle, and the buckle is snapped onto the bayonet to achieve rotational limit cooperation, and so on.

[0041] This embodiment also provides a warehousing vehicle, which at least includes the fuel tank device for conveniently disassembling and assembling the filter described above.

[0042] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them fall within the protection scope of the present invention.

Claims

1. An oil tank device for conveniently disassembling and assembling a filter, comprising a plastic oil tank and a filter; characterized in that: A fixing ring is embedded in the plastic oil tank, and a limiting protrusion extending radially outward is formed on the first end of the fixing ring exposed on the outside of the plastic oil tank; the filter is inserted into the fixing ring, and the filter has a slot extending circumferentially and an insertion port connected to the slot; the limiting protrusion of the fixing ring is inserted through the insertion port and is inserted into the slot by rotation; the plastic oil tank and the filter are both provided with limiting matching structures, and after the limiting protrusion of the fixing ring is inserted into the slot, the limiting matching structures of the plastic oil tank and the filter correspond to each other and form a rotational limiting match.

2. The oil tank device for convenient filter removal according to claim 1, characterized in that: The matching number of the limiting protrusions of the fixing ring and the clamping grooves of the filter is multiple groups, and they are distributed at intervals along the circumferential direction of rotation.

3. The oil tank device for convenient filter removal according to claim 1, characterized in that: The limiting protrusion is arranged to be inclined in the circumferential direction of rotation so that the limiting protrusion is gradually clamped into the clamping groove.

4. The oil tank device for convenient filter removal according to claim 1, characterized in that: The clamping groove is arranged to be inclined in the circumferential direction of rotation so that the limiting protrusion is gradually clamped into the clamping groove.

5. The oil tank device for convenient filter removal according to claim 1, characterized in that: The filter is provided with a connecting ring, the clamping groove and the insertion port are formed on the inner ring wall of the connecting ring; the connecting ring is also sealed against the plastic oil tank through a sealing gasket.

6. The oil tank device for convenient filter removal according to claim 5, characterized in that: The sealing gasket is fixedly connected to the connecting ring.

7. The oil tank device for convenient filter removal according to claim 1, characterized in that: The plastic oil tank is fixedly connected with the fixing ring by means of a rotational molding process; the fixing ring is provided with a radially outwardly bent insert at a second end away from the first end, and the insert is embedded in the body of the plastic oil tank.

8. The oil tank device for convenient filter removal according to claim 1, characterized in that: The limiting matching structure of the plastic oil tank is a limiting blind hole, and the limiting matching structure of the filter is a connecting hole arranged on the filter flange; after the limiting protrusion of the fixing ring is inserted into the slot, the connecting hole and the limiting blind hole correspond to each other, and also include a limiting member, which is inserted into the corresponding connecting hole and the limiting blind hole, thereby forming a rotational limiting match to limit the filter from rotating relative to the plastic oil tank.

9. The oil tank device for convenient filter removal according to claim 8, characterized in that: The limiting member is a bolt, the connecting hole on the filter flange is a screw hole, the bolt is screwed into the connecting hole on the filter flange, and the bolt can be inserted into or pulled out of the limiting blind hole by rotating the bolt forward and backward.

10. A storage vehicle, characterized in that: The oil tank device at least comprises the oil tank device for convenient filter disassembly and assembly as described in any one of claims 1 to 9.

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