An air pre-filter assembly for heavy truck

Abstract

The present invention discloses an air pre-filter assembly for heavy truck, comprising an end cover and a filter cartridge assembly. A plurality of lifting ears are fixedly arranged on the upper surface of the end cover, the end cover is in an inverted U-shape, a filter device is arranged at the bottom of the end cover, a cavity is formed above the filter device and inside the end cover, a plurality of air outlets are also arranged inside the bottom of the end cover, the upper end of the air outlet is fixedly connected with the inside of the end cover, the lower end of the air outlet passes through the filter device and is located at the lower end of the filter device, a filter cartridge assembly is arranged at the lower end of the air outlet, the filter cartridge assembly is sealed and fixedly connected with the air outlet through a sealing collar, the filter cartridge assembly comprises a first-stage filter cartridge and a second-stage filter cartridge, the first-stage filter cartridge and the second-stage filter cartridge are sealed and fixedly connected through a sealing collar, the product of the present invention has a simple structure, various functions, good pre-filtration effect, can effectively prevent dust accumulation, has good use effect, and is conducive to promotion.

Description

Technical Field

[0001] The invention relates to the technical field of air pre-filtration for heavy trucks, in particular to an air pre-filter assembly for heavy trucks. Background Art

[0002] Heavy-duty trucks are M- and N-type trucks with a maximum gross mass greater than 3,500 kg. This type of truck is a train consisting of a heavy-duty tractor and a heavy-duty trailer. This type of truck generally uses a multi-axle tandem hydraulic suspension device and is generally used to carry large cargoes whose size and weight exceed the limits specified by highway traffic regulations. Heavy-duty trucks are prone to generate a lot of dust during driving, and ordinary air filters are difficult to meet the needs of heavy-duty trucks.

[0003] Heavy-duty vehicles generally need to perform pre-filtration when they need to pass air, otherwise a large amount of large dust is likely to accumulate inside the air filter, causing damage to the filtering equipment and affecting the filtering effect; existing pre-filtration devices usually only use a filter net for filtering, and the pre-filtration effect is poor, and a large amount of dust will still enter the filtering system, and the existing pre-filtration devices cannot discharge the dust in time during filtering, resulting in dust accumulation inside the pre-filtration device, which is prone to clogging and affecting use; at the same time, the air inlet of the existing pre-filtration device is usually facing upward, which causes dust to easily fall into the pre-filtration device, causing large particles of dust to easily block the air inlet, resulting in poor filtering effect and affecting use. Summary of the invention

[0004] The object of the present invention is to provide an air pre-filter assembly for heavy trucks to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The filter element is an air filter element having a plurality of holes, the holes being arranged on the filter element and the filter element being an air filter element.

[0007] The air inlet is arranged below the end cover; a plurality of through holes are arranged around the outer side of the upper end of the punching bag, a filter element is installed inside the punching bag, and the filter element is fixedly connected to the punching bag through a bracket;

[0008] The first-stage filter cartridge and the second-stage filter cartridge are both provided with fixing ears on the left and right sides, and the lower ends of the fixing ears are fixed with dust outlets, and the dust outlets are communicated with the dust removal holes inside the filter cartridge assembly.

[0009] As a further solution of the present invention: the filter device includes a protective layer, a first filter layer and a second filter layer, the protective layer is located at the bottom end of the end cover, the first filter layer is provided above the protective layer, and the second filter layer is provided above the first filter layer.

[0010] As a further solution of the present invention: the protective layer is a wire protective net, the first filter layer is a dust filter layer, and the second filter layer is an activated carbon filter layer.

[0011] As a further solution of the present invention: a mounting hole is provided on the lifting ear.

[0012] As a further solution of the present invention: a plurality of bayonet holes are arranged around the top of the annular seat, a retaining ring is arranged at the bottom of the impeller, a clamping column cooperating with the bayonet holes is arranged at the bottom of the retaining ring, and the impeller is clamped and fixed above the annular seat.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the air inlet below the end cover, air enters from bottom to top, and large dust particles in the air are not easy to enter, so the primary filtering effect is achieved from the air inlet; through the provided filtering device, dust and other impurities in the air can be effectively filtered, the filtering effect is good, and the use is safe and reliable; and the filter element can further filter and purify the air, and the filtering effect is good, and the filter element is easy to disassemble and replace, thereby ensuring the filtering effect and facilitating use; through the provided impeller, dust in the gas can be further filtered, and under the action of the impeller, dust can be directly discharged through the dust removal hole to prevent dust accumulation, which is facilitating use; the product of the present invention has a simple structure, diverse functions, good pre-filtration effect, can effectively prevent dust accumulation, has a good use effect, and is conducive to promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural schematic diagram of an air pre-filter assembly for a Sinotruk vehicle;

[0015] Figure 2 It is a structural schematic diagram of the cross section of the end cover of an air pre-filter assembly for a Sinotruk;

[0016] Figure 3 for Figure 1 Structural diagram of the AA section;

[0017] Figure 4 for Figure 1 Structural diagram of the middle BB section;

[0018] Figure 5 It is a schematic diagram of the structure inside the second-stage filter cartridge in an air pre-filter assembly for a Sinotruk vehicle;

[0019] Figure 6 The figure is a schematic diagram of the structure of an impeller in an air pre-filter assembly for a Sinotruk vehicle.

[0020] In the figure: 1-end cover, 2-lifting ear, 3-mounting hole, 4-air outlet, 5-sealing collar, 6-first stage filter cartridge, 8-second stage filter cartridge, 9-air outlet, 10-air storage cavity, 11-dust outlet, 12-fixing ear, 13-protective layer, 14-bracket, 15-bayonet, 16-annular seat, 17-dust removal hole, 18-wall groove, 20-impeller, 21-retaining ring, 22-cavity, 23-second filter layer, 24-first filter layer, 25-filter element, 26-through hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 6 The present invention provides a technical solution: an air pre-filter assembly for a heavy truck, comprising an end cover 1 and a filter cartridge assembly, wherein a plurality of lifting ears 2 are fixedly arranged on the upper surface of the end cover 1, the end cover 1 is in an inverted U shape, a filter device is arranged at the bottom of the end cover 1, a cavity 22 is formed between the top of the filter device and the inside of the end cover 1, a plurality of air outlets 4 are arranged inside the bottom of the end cover 1, the upper end of the air outlets 4 is fixedly connected to the inside of the end cover 1, the lower end of the air outlets 4 passes through the filter device and is located at the lower end of the filter device, a filter cartridge assembly is arranged at the lower end of the air outlets 4, and the filter cartridge assembly The filter cartridge assembly is sealed and fixedly connected to the air outlet tube 4 through a sealing collar 5, and includes a first-stage filter cartridge 6 and a second-stage filter cartridge 8. The first-stage filter cartridge 6 and the second-stage filter cartridge 8 are sealed and fixedly connected through a sealing collar 5. An annular seat 16 is provided inside the first-stage filter cartridge 6 and the second-stage filter cartridge 8, an impeller 20 is fixedly provided above the annular seat 16, a wall groove 18 is provided below the annular seat 16, a dust removal hole 17 is provided on the wall groove 18, an air storage chamber 10 is provided at the bottom of the filter cartridge assembly, and an air outlet 9 is provided at the lower end of the air storage chamber 10.

[0023] The filtering device comprises a protective layer 13 , a first filter layer 24 and a second filter layer 23 . The protective layer 13 is located at the bottom of the end cover 1 . The first filter layer 24 is disposed above the protective layer 13 . The second filter layer 23 is disposed above the first filter layer 24 .

[0024] The protective layer 13 is a wire protective net, the first filter layer 24 is a dust filter layer, and the second filter layer 23 is an activated carbon filter layer.

[0025] A plurality of through holes 26 are arranged around the outer side of the upper end of the gas outlet bag 4 . A filter element 25 is installed inside the gas outlet bag 4 . The filter element 25 is fixedly connected to the gas outlet bag 4 through the bracket 14 .

[0026] The lifting ear 2 is provided with a mounting hole 3. The first-stage filter cartridge 6 and the second-stage filter cartridge 8 are both provided with fixing ears 12 on the left and right sides, and the lower end of the fixing ears 12 is fixed with a dust outlet 11.

[0027] The dust outlet 11 is connected to the dust removal hole 17 inside the filter cartridge assembly. A plurality of bayonet holes 15 are arranged around the annular seat 16, a retaining ring 21 is arranged at the bottom of the impeller 20, and a clamping column cooperating with the bayonet hole 15 is arranged at the bottom of the retaining ring 21, and the impeller 20 is clamped and fixed above the annular seat 16.

[0028] The working principle of the present invention is: by setting the air inlet below the end cover 1, the air drills in from the bottom to the top, and the large particles of dust in the air are not easy to enter, and the primary filtering effect is achieved from the air inlet; through the provided filtering device, the dust and other impurities in the air can be effectively filtered, the filtering effect is good, and the use is safe and reliable; and the filter element 25 can further filter and purify the air, and the filtering effect is good. At the same time, the filter element is easy to disassemble and replace, so as to ensure the filtering effect and facilitate use; through the provided impeller 20, the dust in the gas can be further filtered, and under the action of the impeller 20, the dust can be directly discharged through the dust removal hole 17 to prevent dust accumulation, which is convenient for use.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air pre-filter assembly for a Sinotruk vehicle, comprising an end cover (1) and a filter cartridge assembly, characterized in that: A plurality of lifting ears (2) are fixedly provided on the upper surface of the end cover (1); the end cover (1) is in an inverted U shape; a filtering device is provided at the bottom of the end cover (1); a cavity (22) is formed between the top of the filtering device and the inside of the end cover (1); a plurality of air outlets (4) are also provided inside the bottom of the end cover (1); the upper ends of the air outlets (4) are fixedly connected to the inside of the end cover (1); the lower ends of the air outlets (4) pass through the filtering device and are located at the lower end of the filtering device; a filter cartridge assembly is provided at the lower end of the air outlets (4); the filter cartridge assembly is sealed and fixedly connected to the air outlets (4) via a sealing collar (5); the air outlets (4) are ...). The filter cartridge assembly comprises a first-stage filter cartridge (6) and a second-stage filter cartridge (8), wherein the first-stage filter cartridge (6) and the second-stage filter cartridge (8) are sealed and fixedly connected via a sealing collar (5), an annular seat (16) is provided inside the first-stage filter cartridge (6) and the second-stage filter cartridge (8), an impeller (20) is fixedly provided above the annular seat (16), a wall groove (18) is provided below the annular seat (16), a dust removal hole (17) is provided on the wall groove (18), an air storage cavity (10) is provided at the bottom of the filter cartridge assembly, and an air outlet (9) is provided at the lower end of the air storage cavity (10); The air inlet is arranged below the end cover (1); A plurality of through holes (26) are arranged around the outer side of the upper end of the gas outlet bag (4), a filter element (25) is installed inside the gas outlet bag (4), and the filter element (25) is fixedly connected to the gas outlet bag (4) through a bracket (14); The first-stage filter cartridge (6) and the second-stage filter cartridge (8) are both provided with fixing ears (12) on the left and right sides, and the lower ends of the fixing ears (12) are fixedly provided with dust outlets (11); The dust outlet (11) is in communication with a dust removal hole (17) inside the filter cartridge assembly.

2. The air pre-filter assembly for heavy truck according to claim 1 is characterized in that: The filtering device comprises a protective layer (13), a first filtering layer (24) and a second filtering layer (23); the protective layer (13) is located at the bottom end of the end cover (1); the first filtering layer (24) is arranged above the protective layer (13); and the second filtering layer (23) is arranged above the first filtering layer (24).

3. The air pre-filter assembly for heavy truck according to claim 2 is characterized in that: The protective layer (13) is a wire protective net, the first filter layer (24) is a dust filter layer, and the second filter layer (23) is an activated carbon filter layer.

4. The air pre-filter assembly for a heavy truck according to claim 1 is characterized in that: The lifting ear (2) is provided with a mounting hole (3).

5. The air pre-filter assembly for heavy truck according to claim 1 is characterized in that: A plurality of bayonet holes (15) are arranged around the annular seat (16), a retaining ring (21) is arranged at the bottom of the impeller (20), a retaining column cooperating with the bayonet holes (15) is arranged at the bottom of the retaining ring (21), and the impeller (20) is fixedly connected to the annular seat (16).

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