Off-road vehicle fuel pressure sensor protection device

Abstract

The utility model discloses a protection device for a fuel pressure sensor of an off-road vehicle, and belongs to the field of automobile sensor protection. The pressure sensor mainly comprises a cover plate, a pressure sensor body and a protective cover body, a mounting base is arranged in the middle of one side of the cover plate, a double-side spring bolt and a single-side spring bolt are arranged on the two sides of the mounting base respectively, the pressure sensor body is arranged above the mounting base, the protective cover body is arranged above the pressure sensor body, and the protective cover body is a shell. One end of the through groove abuts against the pressure sensor body, arc elastic buckles abutting against the pressure sensor body are arranged on the two sides of the through groove, a single-side elastic buckle and a double-side elastic buckle are arranged on the two sides of the interior of the protective cover body respectively, and plug pins on the two sides of the double-side elastic buckle are inserted into the inserting grooves and abut against the lower surfaces of the inserting grooves. A single-side pin of the single-side elastic buckle abuts against the lower surface of the fixing block. The protective cover is arranged on the outer side of the pressure sensor, it is guaranteed that the air holes of the pressure sensor cannot be blocked, and the pressure sensor can work normally for a long time.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sensor protection, and more specifically, it relates to a fuel pressure sensor protection device for off-road vehicles. Background Technology

[0002] Gasoline vehicles must meet Type IV testing (fuel vapor emission test), Type VII testing (refueling emission test), and fuel system OBD leak detection testing. As a key component in the OBD leak detection system, the fuel pressure sensor must ensure high reliability to reduce fuel vapor leakage and minimize atmospheric pollution from fuel vapor emissions. However, off-road vehicles frequently travel on rough terrain, and mud and water from these roads can clog the pressure sensor's vents, causing it to malfunction. Furthermore, current off-road vehicle pressure sensors are not specifically designed for these particular vehicle models.

[0003] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a fuel pressure sensor protection device for off-road vehicles. The device has a protective cover on the outside of the pressure sensor to ensure that the vent hole of the pressure sensor is not blocked, so that the pressure sensor can work normally for a long time.

[0005] A fuel pressure sensor protection device for an off-road vehicle includes a cover plate, a pressure sensor body, and a protective cover body. A mounting base is fixedly connected to the middle of one side of the cover plate. Double-sided locking tongues and a single-sided locking tongue are fixedly connected to both sides of the mounting base. The pressure sensor body is fixedly connected above the mounting base. A sensor cover is fixedly connected to the upper surface of the pressure sensor body. A fixing block and a fixing buckle are fixedly connected to both sides of the pressure sensor body. Slots are provided on both sides of the fixing buckle. The lower surface of the single-sided locking tongue abuts against the upper surface of the fixing block. The double-sided locking tongue is located in the middle of the fixing buckle and abuts against the upper surface of the fixing buckle. A protective cover body is fixedly connected above the pressure sensor body. The protective cover body is a shell. A through groove is provided at one end of the shell, abutting against the pressure sensor body. Arc-shaped elastic buckles are provided on both sides of the through groove, abutting against the pressure sensor body. A single-sided elastic buckle and a double-sided elastic buckle are fixedly connected to both sides of the inside of the protective cover body. The two prongs of the double-sided elastic buckle are inserted into the slots and abut against the lower surface of the slots. The single-sided elastic buckle has one prong abutting against the lower surface of the fixing block.

[0006] Preferably, a plurality of vent holes are provided between the pressure sensor body and the sensor cover.

[0007] Preferably, the interior of the protective cover body abuts against the upper surface of the sensor cover.

[0008] Preferably, the protective cover body is manufactured using an integral injection molding process.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention adds a protective cover to the outside of the existing pressure sensor. When off-road vehicles are driving through muddy or watery areas, mud and water can clog the vent holes, causing inaccurate readings from the pressure sensor. After adding the protective cover, the mud and water are blocked, reducing the clogging of the vent holes and allowing the pressure sensor to work normally. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the cover plate and the pressure sensor body in this utility model.

[0013] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0014] Figure 4 This is a schematic diagram of the structure of the protective shield body;

[0015] Figure 5 This is a schematic diagram of the cover plate structure;

[0016] Figure 6 This is a schematic diagram of the pressure sensor body.

[0017] In the diagram, 1 is the cover plate; 101 is the double-sided locking tongue; 102 is the single-sided locking tongue; 103 is the mounting base; 2 is the pressure sensor body; 201 is the sensor cover; 201A is the vent hole; 202 is the fixing block; 203 is the fixing buckle; 203A is the slot; 3 is the protective cover body; 301 is the through groove; 302 is the arc-shaped elastic buckle; 303 is the single-sided elastic buckle; and 304 is the double-sided elastic buckle. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 1 to 6As shown, a fuel pressure sensor protection device for an off-road vehicle includes a cover plate 1, a pressure sensor body 2, and a protective cover body 3. A mounting base 103 is fixedly connected to the middle of one side of the cover plate 1. Double-sided locking tongues 101 and a single-sided locking tongue 102 are fixedly connected to both sides of the mounting base 103, respectively. The pressure sensor body 2 is fixedly connected above the mounting base 103. One end of the pressure sensor body 2 enters the interior of the cover plate 1 to detect the internal pressure, while the other end is located outside the cover plate 1 to detect the external pressure. A sensor cover 201 is fixedly connected to the upper surface of the pressure sensor body 2 to protect the internal sensor. A fixing block 202 and a fixing buckle 203 are fixedly connected to both sides of the pressure sensor body 2. The fixing buckle 203 has slots 203A on both sides. The lower surface of the single-sided locking tongue 102 abuts against the upper surface of the fixing block 202 for fixation. The double-sided locking tongue 101 is located in the middle of the fixing buckle 203 and abuts against the upper surface of the fixing buckle 203 for fixation. A protective cover body 3 is fixedly connected to the top of the pressure sensor body 2. The protective cover body 3 is a shell. A through groove 301 is opened at one end of the shell. One end of the through groove 301 abuts against the pressure sensor body 2. The through groove 301 has arc-shaped elastic buckles 302 on both sides that abut against the pressure sensor body 2. A single-sided elastic buckle 303 and a double-sided elastic buckle 304 are fixedly connected to both sides of the inside of the protective cover body 3. The two sides of the double-sided elastic buckle 304 are inserted into the slot 203A and abut against the lower surface of the slot 203A. The single side of the single-sided elastic buckle 303 abuts against the lower surface of the fixing block 202. A cavity is formed between the protective cover body 3 and the pressure sensor body 2 to ensure the normal operation of the pressure sensor body 2.

[0021] Multiple vent holes 201A are provided between the pressure sensor body 2 and the sensor cover 201 to ensure the normal operation of the pressure sensor body 2. The interior of the protective cover body 3 abuts against the upper surface of the sensor cover 201 to prevent abnormal noise caused by poor contact between the protective cover body 3 and the pressure sensor body 2 during vehicle movement. The protective cover body 3 is manufactured using a one-piece injection molding process, which allows for mass production and reduces production costs.

[0022] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fuel pressure sensor protection device for an off-road vehicle, comprising a cover plate (1), a pressure sensor body (2), and a protective cover body (3), characterized in that: A mounting base (103) is fixedly connected to the middle of one side of the cover plate (1). A double-sided locking tongue (101) and a single-sided locking tongue (102) are fixedly connected to both sides of the mounting base (103). A pressure sensor body (2) is fixedly connected above the mounting base (103). A sensor cover (201) is fixedly connected to the upper surface of the pressure sensor body (2). A fixing block (202) and a fixing buckle (203) are fixedly connected to both sides of the pressure sensor body (2). Slots (203A) are provided on both sides of the fixing buckle (203). The lower surface of the single-sided locking tongue (102) abuts against the upper surface of the fixing block (202). The double-sided locking tongue (101) is located in the middle of the fixing buckle (203) and is connected to the fixing buckle (203). The upper surface of the pressure sensor body (2) is abutted against each other. A protective cover body (3) is fixedly connected above the pressure sensor body (2). The protective cover body (3) is a shell. A through groove (301) is opened at one end of the shell. One end of the through groove (301) abuts against the pressure sensor body (2). Arc elastic buckles (302) that abut against the pressure sensor body (2) are provided on both sides of the through groove (301). A single elastic buckle (303) and a double elastic buckle (304) are fixedly connected to the two sides of the inside of the protective cover body (3). The two pins of the double elastic buckle (304) are inserted into the slot (203A) and abut against the lower surface of the slot (203A). The single pin of the single elastic buckle (303) abuts against the lower surface of the fixing block (202).

2. The off-road vehicle fuel pressure sensor protection device according to claim 1, characterized in that: Multiple vent holes (201A) are provided between the pressure sensor body (2) and the sensor cover (201).

3. The off-road vehicle fuel pressure sensor protection device according to claim 1, characterized in that: The interior of the protective cover body (3) abuts against the upper surface of the sensor cover (201).

4. The off-road vehicle fuel pressure sensor protection device according to claim 1, characterized in that: The protective cover body (3) is made by one-piece injection molding process.

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