Plastic oil tank

Abstract

The utility model discloses a plastic oil tank which comprises a liquid level sensor, the liquid level sensor comprises a body, a wire harness and a plug connector, and the body and the plug connector are fixedly connected with the two opposite ends of the wire harness respectively; the box body is internally provided with a containing cavity, the body is fixed to the top of the box body and extends into the containing cavity, and the wire harness and the plug connector are both located outside the box body; the surface of the box body is provided with a wire groove matched with the wire harness and a limiting piece matched with the plug connector, the wire harness is clamped in the wire groove, and the plug connector is fixed through the limiting piece. According to the liquid level sensor, the wire harness is fixed in the wire groove, and the plug connector is fixed by the limiting piece, so that the wire harness and the plug connector of the liquid level sensor can be fixed through the cooperation of the wire groove and the limiting piece, abrasion caused by contact with other parts is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tanks, in particular to a plastic fuel tank. Background Art

[0002] Compared with metal fuel tanks, plastic fuel tanks have the characteristics of light weight, rust prevention, low cost and easy molding, so they are widely used in excavators. A liquid level sensor is installed on the plastic fuel tank. The liquid level sensor is fixed on the top of the plastic fuel tank and extends downward into the plastic fuel tank. The wire harness for the liquid level sensor to output signals is placed on the surface of the plastic fuel tank. It is not only in a bare state, but also easily offsets and contacts other components on the periphery, resulting in easy damage to the wire harness and affecting the normal use of the liquid level sensor.

[0003] The prior art discloses that a recessed wiring groove is opened on the top of the plastic fuel tank, and the wire harness is placed in the wiring groove to be separated from other components. However, the size of the wiring groove is significantly larger than that of the wire harness, and the wire harness can move freely in the wiring groove, still causing wear to the wire harness. Summary of the Utility Model

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a plastic fuel tank, which can fix both the wire harness and the plug of the liquid level sensor to avoid wear caused by contact with other components and improve the service life.

[0005] The technical solution adopted by the utility model to solve its problems is as follows:

[0006] A plastic fuel tank, comprising:

[0007] A liquid level sensor, which includes a body, a wire harness and a plug. The body and the plug are respectively fixed to connect the opposite ends of the wire harness;

[0008] A box body, an accommodation cavity is arranged inside the box body. The body is fixed on the top of the box body and extends into the accommodation cavity. Both the wire harness and the plug are located outside the box body;

[0009] A wire groove adapted to the wire harness and a limiting member adapted to the plug are arranged on the surface of the box body. The wire harness is clamped in the wire groove, and the plug is fixed by the limiting member.

[0010] Further, a protective cover is arranged at the wire groove, and the protective cover covers the surface of the wire harness.

[0011] Further, the limiting member is a connecting piece fixed on the surface of the box body. The connecting piece is provided with a card slot adapted to the plug, and the plug is clamped in the card slot.

[0012] Further, baffles are arranged on the opposite sides of the connecting piece. The baffles protrude from the same surface of the connecting piece to form a card slot adapted to the plug through the two baffles and the connecting piece.

[0013] Further, the two baffles extend towards each other, and the connector is provided with adapted grooves corresponding to the two baffles, and the baffles are clamped in the corresponding grooves.

[0014] Further, the connecting piece includes a first section, a second section and a connecting section. The first section and the second section are arranged in parallel, and the second section is farther from the box body than the first section. The first section and the second section are connected by the connecting section.

[0015] Further, the wire groove and the limiting member are located on two adjacent surfaces of the box body.

[0016] Further, both the wire groove and the limiting member are provided on the surface of the top surface of the adjacent box body.

[0017] Further, the wire groove is a structure inclined up and down. The bottom end of the wire groove is connected to the corresponding surface of the limiting member, and the top end of the wire groove is connected to the top surface of the box body.

[0018] Further, the box body and the wire groove are of an integrally formed structure. The protective cover is fixedly adhered to the box body and covers the wire groove, and the limiting member is fixed to the box body by screws.

[0019] The beneficial effects of the plastic fuel tank provided by the present utility model are as follows:

[0020] By fixing the wire harness in the wire groove and using the limiting member to fix the connector, the wire harness and the connector of the liquid level sensor can be fixed by the cooperation of the wire groove and the limiting member, so as to avoid abrasion caused by contact with other components and improve the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the plastic fuel tank of the present utility model;

[0022] Figure 2 is Figure 1 the enlarged view at A in

[0023] Figure 3 is a schematic structural diagram of the connecting piece and the connector of the present utility model.

[0024] Among them, the meanings of the reference numerals are as follows:

[0025] 1. Liquid level sensor; 11. Body; 12. Connector; 121. Groove; 2. Box body; 21. Wire groove; 22. Connecting piece; 221. Card slot; 222. Baffle; 223. First section; 224. Second section; 225. Connecting section; 23. Protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, 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 cannot be construed as a limitation of the present utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0029] Refer to Figure 1 and Figure 2 The present utility model discloses a plastic fuel tank, including: a liquid level sensor 1 and a box body 2. The liquid level sensor 1 includes a body 11, a wire harness, and a plug-in connector 12. The body 11 and the plug-in connector 12 are respectively fixedly connected to opposite ends of the wire harness. An accommodation cavity is provided inside the box body 2. The body 11 is fixed on the top of the box body 2 and extends into the accommodation cavity. Both the wire harness and the plug-in connector 12 are located outside the box body 2.

[0030] The liquid level sensor 1 is used to detect the liquid level height of diesel in the box body 2 and transmit the liquid level height signal to the total control system. The upper end of the body 11 of the liquid level sensor 1 is fixed on the top surface of the box body 2 by screws, and the body 11 passes through the top wall of the box body 2 and extends into the accommodation cavity of the box body 2, so that the bottom end of the body 11 is close to the bottom of the accommodation cavity. One end of the wire harness is fixedly connected to the upper end of the body 11, and the other end of the wire harness is fixedly connected to the plug-in connector 12, so that both the wire harness and the plug-in connector 12 are located outside the box body 2.

[0031] In the prior art, the wire harness and the plug-in connector are arranged in a freely movable state, which is likely to cause wear. For this reason, a wire groove 21 adapted to the wire harness and a limiting member adapted to the plug-in connector 12 are provided on the surface of the box body 2 of the present utility model. The wire harness is clamped in the wire groove 21, and the plug-in connector 12 is fixed by the limiting member. In this way, by fixing the wire harness in the wire groove 21 and using the limiting member to fix the plug-in connector 12, the wire harness and the plug-in connector 12 of the liquid level sensor 1 can be fixed by the cooperation of the wire groove 21 and the limiting member, so as to avoid wear caused by contacting other components and improve the service life.

[0032] It should be noted that the length and position of the wire groove 21 and the position of the limiting member need to correspond to the wire harness and the plug-in connector 12 to ensure the fixing effect.

[0033] The limiting member can be a limiting ring adapted to the plug-in member 12, and the plug-in member 12 is inserted into the limiting ring for fixation. Or as Figure 3 shown, the limiting member is a connecting piece 22 fixed on the surface of the box body 2. The connecting piece 22 is provided with a card slot 221 adapted to the plug-in member 12, and the plug-in member 12 is clamped in the card slot 221, so as to fix the plug-in member 12 through the card slot 221.

[0034] Specifically, baffles 222 are provided on opposite sides of the connecting piece 22. The baffles 222 protrude from the same surface of the connecting piece 22 to form a card slot 221 for the plug-in member 12 through the two baffles 222 and the connecting piece 22. The two baffles 222 can be perpendicular to the surface of the connecting piece, as long as the plug-in member 12 can be clamped in the card slot 221 through the two baffles 222.

[0035] Or, the two baffles 222 extend towards each other, and the plug-in member 12 is provided with adapted grooves 121 corresponding to the two baffles 222, and the baffles 222 are clamped in the corresponding grooves 121. The ends of the two baffles 222 away from the connecting piece 22 are close to each other, so that the distance between the ends of the two baffles 222 away from the connecting piece 22 is less than the distance between the ends of the two baffles 222 close to the connecting piece 22, so that the two baffles 222 can be clamped in the corresponding two grooves 121, further improving the fixing effect of the plug-in member 12.

[0036] Among them, the connecting piece 22 can be arranged to fit the surface of the box body 2, or the connecting piece 22 includes a first section 223, a second section 224 and a connecting section 225. The first section 223 and the second section 224 are arranged in parallel, and the second section 224 is farther from the box body 2 than the first section 223. The first section 223 and the second section 224 are connected by the connecting section 225. With this structure, not only is it convenient to fixedly connect the plug-in member 12, but also due to the distance between the second section 224 and the box body 2, it is convenient to disassemble the plug-in member 12 from the connecting piece 22.

[0037] On the basis of the above structure, the wire groove 21 and the limiting member can both be arranged on the top surface of the box body 2, and the wire harness and the plug-in member 12 can be quickly fixed.

[0038] Preferably, the wire groove 21 and the limiting member are located on two adjacent surfaces of the box body 2. That is, the wire groove 21 can be arranged on the top surface of the box body 2, and the limiting member can be arranged on the side surface of the box body 2, so that after the wire harness is bent, the plug-in member 12 is fixed on the limiting member, which is beneficial to improving the fixing effect.

[0039] More preferably, the wire groove 21 and the limiting member are both arranged on the surface of the adjacent box body 2 top surface. For example, the wire groove 21 is arranged on the front side surface of the box body 2, and the limiting member is arranged on the right side surface of the box body 2. The wire harness is fixed in the wire groove 21 after the first bend, and then the second bend is made so that the plug-in member 12 is fixed on the limiting member, further improving the fixing effect.

[0040] Moreover, the wire groove 21 is an inclined structure from top to bottom. The bottom end of the wire groove 21 is connected to the corresponding surface of the limiting member, and the top end of the wire groove 21 is connected to the top surface of the box body 2. In this way, the wire groove 21 can fix most of the wire harnesses, and the arrangement directions of the wire harnesses and the connectors 12 are gradually inclined downward, with smaller and smoother bending angles of the wire harnesses, avoiding abrasion of the wire harnesses.

[0041] In addition, a protective cover 23 is provided at the wire groove 21, and the protective cover 23 covers the surface of the wire harness. When the wire harness is fixed to the wire groove 21, the protective cover 23 covers the surface of the wire harness, further avoiding abrasion of the wire harness surface.

[0042] For the assembly of the plastic fuel tank, the box body 2 and the wire groove 21 are of an integrally formed structure. The protective cover 23 is fixedly adhered to the box body 2 and covers the wire groove 21, and the limiting member is fixed to the box body 2 by screws. The box body 2 and the wire groove 21 are integrally formed by injection molding, and the protective cover 23 and the limiting member can also be injection molded structures, with simple process and high strength. Thus, the plastic fuel tank has the characteristics of simple structure, convenient assembly, and light weight.

[0043] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A plastic fuel tank, characterized in that: include: A liquid level sensor, the liquid level sensor comprising a body, a wiring harness and a connector, wherein the body and the connector are respectively fixedly connected to opposite ends of the wiring harness; A box body, wherein a receiving cavity is provided inside the box body, the main body is fixed on the top of the box body and extends into the receiving cavity, and the wiring harness and the connector are both located outside the box body; The surface of the box body is provided with a wire groove adapted to the wire harness and a stopper adapted to the connector. The wire harness is clamped in the wire groove, and the connector is fixed via the stopper.

2. The plastic fuel tank according to claim 1, characterized in that: A protective cover is provided at the wire groove, and the protective cover is covered on the surface of the wire harness.

3. The plastic fuel tank according to claim 1, characterized in that: The limiting member is a connecting piece fixed on the surface of the box body. The connecting piece is provided with a slot adapted to the plug-in member, and the plug-in member is clamped in the slot.

4. The plastic fuel tank according to claim 3, characterized in that: Baffles are provided on opposite sides of the connecting piece, and the baffles protrude from the same surface of the connecting piece to form the slot adapted to the plug-in component through the two baffles and the connecting piece.

5. The plastic fuel tank according to claim 4, characterized in that: The two baffles extend toward each other, and the plug-in component is provided with matching grooves corresponding to the two baffles, and the baffles are clamped in the corresponding grooves.

6. The plastic fuel tank according to claim 3, characterized in that: The connecting piece includes a first section, a second section and a connecting section. The first section and the second section are arranged in parallel, and the second section is farther away from the box body than the first section. The first section and the second section are connected by the connecting section.

7. The plastic fuel tank according to any one of claims 1 to 6, characterized in that: The wire trough and the limiting member are located on two adjacent surfaces of the box body.

8. The plastic fuel tank according to claim 7, characterized in that: The wire trough and the limiting member are both arranged on the surface adjacent to the top surface of the box body.

9. The plastic fuel tank according to claim 8, characterized in that: The wire trough is an up-and-down inclined structure, the bottom end of the wire trough is connected to the surface corresponding to the stopper, and the top end of the wire trough is connected to the top surface of the box.

10. The plastic fuel tank according to claim 2, characterized in that: The box body and the wire trough are an integrally formed structure, the protective cover is adhered and fixed to the box body and covers the wire trough, and the limiting member is fixed to the box body by screws.

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