Diesel oil filter

Abstract

The utility model relates to a diesel oil filter which comprises a shell, a filter element installation cavity formed in the shell and a water collection cavity formed below the filter element installation cavity, a filter element is arranged in the filter element installation cavity, an oil inlet hole and an oil outlet hole are formed in the positions, corresponding to the filter element, of the top of the shell, and a water level sensor is arranged in the water collection cavity. The water level sensor comprises a connecting end used for electrical connection, a connecting part connected with the shell and an induction end provided with two copper needles oppositely, the connecting part is connected with the shell in a sealed mode, the induction end is arranged in the water collecting cavity, the induction end is provided with a false alarm prevention device, the false alarm prevention device comprises an insulating partition plate, and the partition plate is fixedly connected with the induction end. The partition plate is arranged between the two copper needles, insulating covers corresponding to the copper needles are arranged on the two sides of the partition plate, cavities are formed in the covers, the copper needles are arranged in the cavities, water inlets allowing water to enter the cavities are formed in the covers, and an anti-false alarm device is arranged, so that water drops are prevented from splashing between the copper needles to cause false alarms.

Description

Technical Field

[0001] The utility model relates to the field of diesel filters, in particular to a diesel filter. Background Art

[0002] During the operation of the engine, the filtration of the diesel filter is used to ensure that the engine works in the optimal state. The diesel filter is mainly used to filter moisture and impurities in diesel. In order to effectively utilize space, the existing diesel filter usually integrates oil-water separation and diesel fine filtration functions, and usually includes a shell. The shell is provided with a filter element installation cavity, a water collecting cavity arranged below the filter installation cavity, the filter installation cavity is provided with a filter element, and the top of the shell is provided with an oil inlet hole and an oil outlet hole. The water collecting cavity is provided with a water level sensor. At present, the water level sensor includes a connecting end for electrical connection, a connecting part connected to the shell, and a sensing end with two copper needles opposite to each other. Except for the copper needle part, all parts of the water level sensor are insulated. When the water level in the water collecting cavity reaches the copper needle, a passage is formed between the copper needles, and a signal alarm is transmitted to prompt the operator to release the water. However, due to the bumpy road during the driving of the vehicle, the accumulated water in the water collecting cavity will shake and splash. When water droplets splash between the copper needles, it will cause a false alarm. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0004] A diesel filter is provided, which is provided with an anti-false alarm device to prevent water drops from splashing between copper needles and causing false alarms.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diesel filter, comprising a shell, the shell is provided with a filter element installation cavity, a water collecting cavity arranged below the filter installation cavity, the filter installation cavity is provided with a filter element, the top of the shell is provided with an oil inlet hole and an oil outlet hole corresponding to the filter element, the water collecting cavity is provided with a water level sensor, the water level sensor comprises a connecting end for electrical connection, a connecting part connected to the shell, and a sensing end with two copper needles opposite to each other, the connecting part is sealed and connected to the shell, the sensing end is arranged in the water collecting cavity, and is characterized in that: the sensing end is provided with an anti-false alarm device, the anti-false alarm device comprises an insulating partition, the partition is fixedly connected to the sensing end, and the partition is arranged between the two copper needles, insulating covers are provided on both sides of the partition corresponding to the copper needles, a cavity is provided inside the cover, the copper needle is arranged in the cavity, and the cover is provided with a water inlet for supplying water into the cavity.

[0006] The utility model with the above characteristics: when the vehicle bumps, the splashing water drops will be blocked by the cover, so as to prevent the splashing water drops from reaching between the two copper needles to form a passage and cause a false alarm.

[0007] The utility model is further configured as follows: one end below the cover is sealed and connected to the sensing end; the water inlet is arranged on the side of one end below the cover and communicates with the cavity.

[0008] The utility model with the above characteristics: the water in the water collection chamber can only enter the cavity through the water inlet and contact the copper needles. After the water level reaches the water inlet and enters the cavity, the two copper needles form a passage through the contacted accumulated water to realize alarm. There is only one water inlet, the water inlet, to prevent splashing water droplets from contacting the copper needles.

[0009] A further configuration of the utility model is that a vent hole is provided above the cover.

[0010] The utility model with the above characteristics: the cavity is ventilated, so that the accumulated water can smoothly enter the cavity, and it is avoided that the pressure in the cavity is too high so that the accumulated water cannot enter.

[0011] A further configuration of the utility model is that: the shell is connected to the water collecting chamber and is provided with a drain hole, and the drain hole is provided with a drain valve.

[0012] The utility model with the above characteristics: the drain hole cooperates with the drain valve to drain water after the water level in the water collecting chamber reaches the alarm position.

[0013] A further configuration of the utility model is that the partition plate, the cover and the sensing end are integrally formed.

[0014] The utility model with the above characteristics is integrally formed to ensure the structural strength of the connection between the partition plate, the cover and the sensing end.

[0015] The utility model has the beneficial effects that the false alarm prevention device formed by the partition plate and the cover isolates splashing water droplets and prevents the water droplets from splashing between the copper needles to cause a false alarm.

[0016] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of part A of the embodiment of the present utility model. DETAILED DESCRIPTION

[0019] like Figure 1 —— Figure 2A diesel filter shown in the figure comprises a shell 1, wherein the shell 1 is provided with a filter element installation 101, a water collecting chamber 102 arranged below the filter installation chamber 101, the filter installation chamber 101 is provided with a filter element 2, an oil inlet hole 3 and an oil outlet hole 4 are arranged at the top of the shell 1 corresponding to the filter element 2, the water collecting chamber 102 is provided with a water level sensor 5, the water level sensor 5 comprises a connecting end 501 for electrical connection, a connecting portion 502 connected to the shell 1, and a sensing end 503 with two copper needles 6 arranged opposite to each other, the connecting portion 502 is sealedly connected to the shell 1, the sensing end 503 is arranged in the water collecting chamber 102, the sensing end 503 is provided with an anti-false alarm device, the anti-false alarm device comprises an insulating partition 7, the partition 7 is fixedly connected to the sensing end 503, and the partition 7 is arranged between the two copper needles 6, insulating covers 8 are arranged on both sides of the partition 7 corresponding to the copper needles 6, a cavity 801 is arranged inside the cover 8, the copper needles 6 are arranged in the cavity 801, and the cover 8 is provided with a water supply The water inlet 802 entering the cavity, one end below the cover 8 is sealed and connected to the sensing end 503, the water inlet 802 is arranged on the side of one end below the cover 8 and is connected to the cavity 801, the water in the water collecting chamber 102 can only enter the cavity 801 through the water inlet 802 and contact the copper needle 6, after the water level reaches the water inlet 802 and enters the cavity 801, the two copper needles 6 form a passage through the contacted accumulated water to realize the alarm, there is only one water inlet 802, avoiding To prevent splashing water droplets from contacting the copper needle 6 and prevent false alarms, a vent hole 9 is provided above the cover 8 to allow ventilation in the cavity 801 so that accumulated water can smoothly enter the cavity 801 and avoid excessive pressure in the cavity 801 that prevents accumulated water from entering. The shell 1 is connected to the water collecting chamber 102 and is provided with a drain hole 10. The drain hole 10 is provided with a drain valve 11. The partition 7, the cover 8 and the sensing end 503 are integrally formed to ensure the structural strength of the connection between the partition 7, the cover 8 and the sensing end 503.

Claims

1. A diesel filter, comprising a housing, the housing being provided with a filter element installation cavity, a water collecting cavity arranged below the filter installation cavity, the filter installation cavity being provided with a filter element, an oil inlet hole and an oil outlet hole being provided at the top of the housing corresponding to the filter element, the water collecting cavity being provided with a water level sensor, the water level sensor comprising a connecting end for electrical connection, a connecting portion connected to the housing, and a sensing end having two copper needles arranged opposite to each other, the connecting portion being sealed and connected to the housing, the sensing end being arranged in the water collecting cavity, and characterized in that: The sensing end is provided with an anti-false alarm device, which includes an insulating partition, which is fixedly connected to the sensing end and is arranged between two copper needles. Insulating covers are provided on both sides of the partition corresponding to the copper needles, a cavity is provided inside the cover, the copper needle is arranged in the cavity, and the cover is provided with a water inlet for supplying water into the cavity.

2. A diesel filter according to claim 1, characterized in that: The lower end of the cover is sealed and connected to the sensing end, and the water inlet is arranged on the side of the lower end of the cover and communicates with the cavity.

3. A diesel filter according to claim 1 or 2, characterized in that: A vent hole is arranged above the cover.

4. A diesel filter according to claim 1, characterized in that: The shell is connected to the water collecting chamber and is provided with a drain hole, and the drain hole is provided with a drain valve.

5. A diesel filter according to claim 1 or 2, characterized in that: The partition plate, the cover and the sensing end are integrally formed.

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