An air cleaner for a mine vehicle

Abstract

The application discloses a mine vehicle air filter element, which comprises an air filter element unit, a clamping end cover unit, a drying unit and a pipe joint unit. The air filter element unit comprises a mounting shell, a filter element cylinder, an air inlet pipe, an air outlet pipe and a residue discharge bottom pipe. The clamping end cover unit comprises an end cover, a sleeving groove, a pressing plate, a connecting rod, a first spring, a pulling block, a matching groove, a clamping taper block and a pulling rope. The drying unit comprises a bottom cover, a drying block, a first step groove and a filter plate. The pipe joint unit comprises a contact inner ring, a tapered rubber, an air inlet pipe, a connecting cover and a pressing hole. The end cover on the air filter element shell can be mounted and detached without using tools, which guarantees the air tightness of the filter element cylinder. The water vapor in the filter element can be absorbed, so that the internal environment of the filter element is kept dry, and the occurrence of the mold problem of the filter element cylinder is reduced. In the connecting process of the outer pipe fitting on the air inlet pipe of the air filter element, tools are not needed, and the air tightness can be guaranteed.

Description

Technical Field

[0001] This invention relates to the field of portable air filter technology for mining vehicles, and in particular to a portable air filter for mining vehicles. Background Technology

[0002] Vehicle engines are highly precise machines, and even the smallest impurities can damage them. Therefore, air must pass through a finely filtered air filter before entering the cylinders. The air filter is the engine's guardian, and its condition directly affects the engine's lifespan. If a dirty air filter is used while driving, it can cause insufficient air intake, incomplete fuel combustion, unstable engine operation, reduced power, and increased fuel consumption. Therefore, it is essential to keep the vehicle's air filter clean.

[0003] Currently, since most mining machinery operates in harsh environments such as construction sites, mines, and quarries, the airtightness requirements for air filters are particularly high. However, the end cap structures on existing air filter housings are all installed using bolts or pull-tab structures. Installation and subsequent disassembly require tools and are cumbersome and inconvenient. After humid air passes through the air filter, the filter is prone to mold and damage. The air filter does not have the ability to absorb and dry water. The connection of the fittings on the air filter's inlet and outlet pipes is done using clamp structures, which require tools and are inconvenient, and cannot guarantee airtightness. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the end cap structure on the air filter housing is inconvenient to install and disassemble, the air filter does not have the ability to absorb water and dry, the filter is prone to mold and damage, and the connection of the pipe fittings on the air inlet and outlet pipes of the air filter is made by clamp structure, which requires tools and is inconvenient, and cannot guarantee airtightness.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a portable air filter for mining vehicles, which includes an air filter unit, comprising a mounting shell, a filter cartridge disposed inside the mounting shell, an air inlet pipe connected through one side of the mounting shell, an air outlet pipe connected through one end of the mounting shell, and a slag discharge bottom pipe disposed at the bottom of the mounting shell; a snap-fit ​​end cap unit, disposed at one end of the mounting shell, including an end cap, a fitting groove opened on one side of the end cap, a pressure plate disposed inside the fitting groove, a connecting rod fixed to one side of the pressure plate, a first spring fitted outside the connecting rod, and a connecting rod... The unit comprises: a pull block connected to the top of the connecting rod; mating grooves distributed on the inner walls of both sides of the end cap; a locking cone block inserted into the mating groove; and a pull rope connected to the locking cone block and the pressure plate; a drying unit disposed below the slag discharge bottom pipe, including a bottom cover, a drying block placed inside the bottom cover, a first step groove disposed on the inner wall of the bottom cover, and a filter plate disposed on the first step groove; and a pipe connection unit disposed inside one end of the air inlet pipe, including an inner contact ring, a conical rubber ring disposed on one side of the inner contact ring, a connecting cover connected to the end of the air inlet pipe, and a pressure hole penetrating through the end of the connecting cover.

[0006] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a stepped hole is provided on the outer wall of the end of the mounting housing, and engaging grooves are provided on the inner walls of both sides of the stepped hole corresponding to the engaging cone blocks.

[0007] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a limiting block is connected to the outer wall of one end of the engaging cone block, and a second spring is connected to the outer wall of one side of the limiting block.

[0008] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: the end cap has a first through hole on the outer wall of the mating groove side, and the pull rope passes through the first through hole.

[0009] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a groove is provided on the outer wall of the end cap, and the pull block is placed inside the groove.

[0010] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: handles are rotatably mounted on the outer walls at both ends of the pull block.

[0011] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a second through hole is provided on the bottom outer wall of the groove, and the connecting rod passes through the second through hole.

[0012] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a first internal thread is provided on the top inner wall of the bottom cover, and a first external thread is provided on the bottom outer wall of the slag discharge pipe, and the first external thread and the first internal thread are screwed together.

[0013] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a second internal thread is provided on the inner wall of the connecting cover, and a second external thread is provided on the outer wall of one end of the air intake pipe, and the second internal thread and the second external thread are screwed together.

[0014] In a preferred embodiment of the portable air filter for mining vehicles described in this invention: a mounting bracket is connected to the bottom of the mounting housing, and mounting screw holes are distributed on the outer wall of the mounting bracket.

[0015] The beneficial effects of this invention are as follows: the end caps on the air filter housing can be installed and removed without the use of tools, and can be installed or removed in one step, making the operation convenient. They can also tightly press the filter cartridge to ensure the airtightness of the filter cartridge installation. They can absorb moisture inside the filter cartridge, keeping the internal environment of the filter cartridge dry and reducing the occurrence of mold growth in the filter cartridge. The connection of the outer pipe fittings on the air inlet pipe of the air filter does not require the use of tools and can ensure airtightness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0017] Figure 1 This is a schematic diagram of a portable air filter structure for mining vehicles according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the exploded structure of a portable air filter for mining vehicles according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of the clip-on end cap unit in a portable air filter for mining vehicles, as described in one embodiment of the present invention.

[0020] Figure 4 A portable air filter for mining vehicles, as provided in one embodiment of the present invention. Figure 3 Enlarged view of the structure of region A in the middle.

[0021] Figure 5 A portable air filter for mining vehicles, as provided in one embodiment of the present invention. Figure 3 Enlarged view of the structure of region B in the middle.

[0022] Figure 6 An exploded schematic diagram of the drying unit in a portable air filter for mining vehicles, as described in one embodiment of the present invention.

[0023] Figure 7 A portable air filter for mining vehicles, as provided in one embodiment of the present invention. Figure 2 Enlarged view of the structure of region C in the middle.

[0024] Figure 8 This is an exploded cross-sectional view of the pipe connection unit in a portable air filter for mining vehicles, as described in one embodiment of the present invention.

[0025] Figure 9 A portable air filter for mining vehicles, as provided in one embodiment of the present invention. Figure 2 Enlarged view of the structure of region D in the middle. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a portable air filter for mining vehicles. The portable air filter for mining vehicles includes an air filter unit 100 and a snap-on end cap unit 200. The snap-on end cap unit 200 is disposed at the end of the air filter unit 100.

[0031] Specifically, the air filter unit 100 includes a mounting housing 101, a filter cartridge 102 disposed inside the mounting housing 101, an intake pipe 103 connected through one side of the mounting housing 101, an exhaust pipe 104 connected through one end of the mounting housing 101, and a slag discharge bottom pipe 105 disposed at the bottom of the mounting housing 101. Air enters the mounting housing 101 through the intake pipe 103 and is filtered by the filter cartridge 102 to remove dust and impurities from the air. The filtered air is then output through the exhaust pipe 104, which is connected to the engine intake end. During subsequent cleaning and maintenance, the dust and impurities remaining in the mounting housing 101 are discharged through the slag discharge bottom pipe 105.

[0032] Furthermore, mounting bracket 101c has mounting screw holes 101c-1 distributed on its outer wall, and bolts are used to install it on the vehicle through the mounting screw holes 101c-1 on the mounting bracket 101c.

[0033] The snap-fit ​​end cap unit 200 is disposed at one end of the mounting housing 101 and includes an end cap 201, a fitting groove 202 opened on one side of the end cap 201, a pressure plate 203 disposed inside the fitting groove 202, a connecting rod 204 fixed to one side of the pressure plate 203, a first spring 205 fitted outside the connecting rod 204, a pull block 206 connected to the top end of the connecting rod 204, mating grooves 207 distributed on the inner walls of both sides of the end cap 201, and a component inserted into the mating groove 207. The locking cone block 208 and the pull rope 209 connected to the locking cone block 208 and the pressure plate 203 are provided. A stepped hole 101a is provided on the outer wall of the end of the mounting housing 101. The inner walls on both sides of the stepped hole 101a are provided with locking grooves 101b corresponding to the locking cone block 208. A limit block 208a is connected to the outer wall of one end of the locking cone block 208. A second spring 208b is connected to the outer wall of one side of the limit block 208a. The end cap 201 is located on the outer wall of the mating groove 207 and has a through opening. A first through hole 201c is provided, and a pull rope 209 passes through the first through hole 201c. The end cap 201 is installed in the stepped hole 101a of the mounting housing 101. Under the action of the first spring 205, the engaging cone block 208 pops out and engages with the engaging groove 101b on the stepped hole 101a, thus realizing the installation of the end cap 201. The pressure plate 203 on one side of the end cap 201 presses one end of the filter cartridge 102. During the process, the first spring 205 and the connecting rod 204... Under the action of the pressure plate 203, the pressure plate 203 will maintain the pressure on the filter cartridge 102, making the filter cartridge 102 and the housing 101 more tightly installed, ensuring the airtightness of the filter cartridge 102 installation. During the later disassembly of the end cover 201, the pull block 206 is pulled, and the pressure plate 203 is moved by the connecting rod 204. The pressure plate 203 moves the locking cone 208 by the pull rope 209, so that the locking cone 208 is removed from the locking groove 101b, thus realizing the disassembly of the end cover 201.

[0034] Furthermore, a groove 201a is provided on the outer wall of the end cap 201, and a pull block 206 is placed on the inner wall of the groove 201a. Pull handles 206a are rotatably installed on the outer walls at both ends of the pull block 206.

[0035] Furthermore, a second through hole 201b is provided on the bottom outer wall of the groove 201a, and the connecting rod 204 passes through the second through hole 201b, which facilitates the movement of the connecting rod 204 within the second through hole 201b.

[0036] During use, in the installation process of the portable air filter element for mining vehicles, after assembling the filter element cartridge 102 into the mounting housing 101, the end cap 201 is inserted into the stepped hole 101a at the end of the mounting housing 101. After the engaging cone 208 enters the stepped hole 101a, the engaging cone 208 retracts into the mating groove 207, compressing the second spring 208b. After the engaging cone 208 and the engaging groove 101b are aligned, under the action of the second spring 208b, the engaging cone 208 automatically pops out and engages into the engaging groove 101b, thus realizing the installation of the end cap 201. When installing the end cap 201, the end of the filter element cartridge 102 is inserted into the fitting groove 202. The filter cartridge 102 serves to fix the filter cartridge 102. The end of the filter cartridge 102 is held by the pressure plate 203. Under the action of the connecting rod 204 and the first spring 205, the pressure plate 203 will continue to hold the filter cartridge 102, making the installation tighter and ensuring airtightness. When the end cap 201 needs to be removed later, the pull block 206 is moved by the pull handle 206a, which in turn moves the pressure plate 203 through the connecting rod 204. This will move the limiting block 208a and the locking cone block 208 through the pull rope 209, so that the locking cone block 208 is retracted into the mating groove 207 and removed from the locking groove 101b, thus realizing the removal of the end cap 201.

[0037] Example 2

[0038] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 In the second embodiment of the present invention, the portable air filter for mining vehicles includes an air filter unit 100 and a drying unit 300, with the drying unit 300 disposed below the slag discharge bottom pipe 105.

[0039] Specifically, the air filter unit 100 includes a mounting housing 101, a filter cartridge 102 disposed inside the mounting housing 101, an intake pipe 103 connected through one side of the mounting housing 101, an exhaust pipe 104 connected through one end of the mounting housing 101, and a slag discharge bottom pipe 105 disposed at the bottom of the mounting housing 101. Air enters the mounting housing 101 through the intake pipe 103 and is filtered by the filter cartridge 102 to remove dust and impurities from the air. The filtered air is then output through the exhaust pipe 104, which is connected to the engine intake end. During subsequent cleaning and maintenance, the dust and impurities remaining in the mounting housing 101 are discharged through the slag discharge bottom pipe 105.

[0040] The drying unit 300 is located below the slag discharge bottom pipe 105 and includes a bottom cover 301, a drying block 302 placed inside the bottom cover 301, a first step groove 303 set on the inner wall of the bottom cover 301, and a filter plate 304 set on the first step groove 303. The bottom cover 301 covers the bottom of the slag discharge bottom pipe 105. The drying block 302 filled inside the bottom cover 301 and the filter plate 304 can absorb moisture inside the mounting shell 101, keeping the internal environment of the mounting shell 101 dry and reducing the occurrence of mold problems in the filter cartridge 102.

[0041] Furthermore, a first internal thread 301a is provided on the top inner wall of the bottom cover 301, and a first external thread 105a is provided on the bottom outer wall of the slag discharge bottom pipe 105. The first external thread 105a and the first internal thread 301a are screwed together, and the bottom cover 301 of the bottom of the slag discharge bottom pipe 105 is screwed together and installed by the cooperation of the first external thread 105a and the first internal thread 301a.

[0042] During use, during the maintenance of the air filter element, the bottom cover 301 can be unscrewed from the bottom of the slag discharge bottom pipe 105 to discharge filtered impurities through the slag discharge bottom pipe 105. After removing the bottom cover 301, a drying block 302 (which can be a lime block) can be filled inside the bottom cover 301. Then, a filter plate 304 is placed on the first step groove 303, and the bottom cover 301 is screwed back onto the bottom of the slag discharge bottom pipe 105. The drying block 302 and the filter plate 304 can absorb moisture inside the mounting shell 101, keeping the internal environment of the mounting shell 101 dry and reducing the occurrence of mold problems in the filter element cartridge 102.

[0043] Example 3

[0044] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9 In the third embodiment of the present invention, the portable air filter for mining vehicles includes an air filter unit 100 and a pipe connection unit 400, with the pipe connection unit 400 disposed at one end of the air intake pipe 103.

[0045] Specifically, the air filter unit 100 includes a mounting housing 101, a filter cartridge 102 disposed inside the mounting housing 101, an intake pipe 103 connected through one side of the mounting housing 101, an exhaust pipe 104 connected through one end of the mounting housing 101, and a slag discharge bottom pipe 105 disposed at the bottom of the mounting housing 101. Air enters the mounting housing 101 through the intake pipe 103 and is filtered by the filter cartridge 102 to remove dust and impurities from the air. The filtered air is then output through the exhaust pipe 104, which is connected to the engine intake end. During subsequent cleaning and maintenance, the dust and impurities remaining in the mounting housing 101 are discharged through the slag discharge bottom pipe 105.

[0046] The pipe connection unit 400 is disposed inside one end of the air intake pipe 103. It includes an inner contact ring 401, a conical rubber ring 402 disposed on one side of the inner contact ring 401, a connecting cap 403 connected to the end of the air intake pipe 103, and a pressure holding hole 404 through the end of the connecting cap 403. The conical rubber ring 402 is fitted onto the external pipe, and then the conical rubber ring 402 is inserted into the inner contact ring 401 side of the air intake pipe 103. The connecting cap 403 is then connected to the end of the air intake pipe 103, so that the end of the conical rubber ring 402 is inserted into the pressure holding hole 404 of the connecting cap 403. Tightening the connecting cap 403 will tightly press the conical rubber ring 402, making the pipe connection tighter and ensuring the airtightness of the pipe connection.

[0047] Furthermore, a second internal thread 403a is provided on the inner wall of the connecting cover 403, and a second external thread 103a is provided on the outer wall of one end of the air intake pipe 103. The second internal thread 403a and the second external thread 103a are screwed together, and the connecting cover 403 at the end of the air intake pipe 103 is screwed together and installed by the cooperation of the second internal thread 403a and the second external thread 103a.

[0048] When using the pipe, when connecting the pipe at the end of the intake pipe 103, remove the connecting cap 403 from the intake pipe 103, put the connecting cap 403 on the outer pipe, then put the conical rubber ring 402 on the end of the outer pipe, then insert the conical rubber ring 402 into the side of the inner ring 401 of the intake pipe 103, and then screw the connecting cap 403 on the end of the intake pipe 103 so that the end of the conical rubber ring 402 is inserted into the pressing hole 404 of the connecting cap 403. Continue to tighten the connecting cap 403 so that the pressing hole 404 tightly presses the conical rubber ring 402, making the pipe connection tighter.

[0049] Example 4

[0050] Reference Figures 1-9This is the fourth embodiment of the present invention. This embodiment provides a portable air filter for mining vehicles. The portable air filter for mining vehicles includes an air filter unit 100, a snap-on end cap unit 200, a drying unit 300, and a pipe connection unit 400. The snap-on end cap unit 200 is disposed at the end of the air filter unit 100, the drying unit 300 is disposed below the slag discharge bottom pipe 105, and the pipe connection unit 400 is disposed at one end of the air inlet pipe 103.

[0051] Specifically, the air filter unit 100 includes a mounting housing 101, a filter cartridge 102 disposed inside the mounting housing 101, an intake pipe 103 connected through one side of the mounting housing 101, an exhaust pipe 104 connected through one end of the mounting housing 101, and a slag discharge bottom pipe 105 disposed at the bottom of the mounting housing 101. Air enters the mounting housing 101 through the intake pipe 103 and is filtered by the filter cartridge 102 to remove dust and impurities from the air. The filtered air is then output through the exhaust pipe 104, which is connected to the engine intake end. During subsequent cleaning and maintenance, the dust and impurities remaining in the mounting housing 101 are discharged through the slag discharge bottom pipe 105.

[0052] Furthermore, mounting bracket 101c has mounting screw holes 101c-1 distributed on its outer wall, and bolts are used to install it on the vehicle through the mounting screw holes 101c-1 on the mounting bracket 101c.

[0053] The snap-fit ​​end cap unit 200 is disposed at one end of the mounting housing 101 and includes an end cap 201, a fitting groove 202 formed on one side of the end cap 201, a pressure plate 203 disposed inside the fitting groove 202, a connecting rod 204 fixed to one side of the pressure plate 203, a first spring 205 fitted outside the connecting rod 204, a pull block 206 connected to the top of the connecting rod 204, mating grooves 207 distributed on both sides of the inner wall of the end cap 201, and an insert into the mating groove 207. The mounting housing 101 has a stepped hole 101a on the outer wall of the end of the housing 101, and a locking groove 101b on the inner wall of the stepped hole 101a corresponding to the locking cone 208. A limit block 208a is connected to the outer wall of one end of the locking cone 208, and a second spring 208b is connected to the outer wall of one side of the limit block 208a. The end cap 201 has a through opening on the outer wall of the mating groove 207. A first through hole 201c is provided, and a pull rope 209 passes through the first through hole 201c. The end cap 201 is installed in the stepped hole 101a of the mounting housing 101. Under the action of the first spring 205, the engaging cone block 208 pops out and engages with the engaging groove 101b on the stepped hole 101a, thus realizing the installation of the end cap 201. The pressure plate 203 on one side of the end cap 201 presses one end of the filter cartridge 102. During the process, the first spring 205 and the connecting rod 204... Under the action of the pressure plate 203, the pressure plate 203 will maintain the pressure on the filter cartridge 102, making the filter cartridge 102 and the housing 101 more tightly installed, ensuring the airtightness of the filter cartridge 102 installation. During the later disassembly of the end cover 201, the pull block 206 is pulled, and the pressure plate 203 is moved by the connecting rod 204. The pressure plate 203 moves the locking cone 208 by the pull rope 209, so that the locking cone 208 is removed from the locking groove 101b, thus realizing the disassembly of the end cover 201.

[0054] Furthermore, a groove 201a is provided on the outer wall of the end cap 201, and a pull block 206 is placed on the inner wall of the groove 201a. Pull handles 206a are rotatably installed on the outer walls at both ends of the pull block 206.

[0055] Furthermore, a second through hole 201b is provided on the bottom outer wall of the groove 201a, and the connecting rod 204 passes through the second through hole 201b, which facilitates the movement of the connecting rod 204 within the second through hole 201b.

[0056] Furthermore, a first internal thread 301a is provided on the top inner wall of the bottom cover 301, and a first external thread 105a is provided on the bottom outer wall of the slag discharge bottom pipe 105. The first external thread 105a and the first internal thread 301a are screwed together, and the bottom cover 301 of the bottom of the slag discharge bottom pipe 105 is screwed together and installed by the cooperation of the first external thread 105a and the first internal thread 301a.

[0057] The pipe connection unit 400 is located inside one end of the intake pipe 103. It includes an inner contact ring 401, a conical rubber ring 402 disposed on one side of the inner contact ring 401, a connecting cap 403 connected to the end of the intake pipe 103, and a pressure holding hole 404 through the end of the connecting cap 403. The conical rubber ring 402 is fitted onto the external pipe, and then the conical rubber ring 402 is inserted into the inner contact ring 401 side of the intake pipe 103. The connecting cap 403 is then connected to the end of the intake pipe 103, so that the end of the conical rubber ring 402 is inserted into the pressure holding hole 404 of the connecting cap 403. Tightening the connecting cap 403 will tightly press the conical rubber ring 402, making the pipe connection tighter and ensuring the airtightness of the pipe connection.

[0058] Furthermore, a second internal thread 403a is provided on the inner wall of the connecting cover 403, and a second external thread 103a is provided on the outer wall of one end of the air intake pipe 103. The second internal thread 403a and the second external thread 103a are screwed together, and the connecting cover 403 at the end of the air intake pipe 103 is screwed together and installed by the cooperation of the second internal thread 403a and the second external thread 103a.

[0059] In summary: the end cap 201 on the air filter housing can be installed and removed without tools, and can be completed in one step, making it convenient to operate. It can also tightly hold the filter cartridge 102, ensuring the airtightness of the filter cartridge 102 installation; it can absorb moisture inside the filter element, keeping the internal environment of the filter element dry and reducing the occurrence of mold problems in the filter cartridge 102; the connection of the outer pipe fitting on the air inlet pipe 103 of the air filter does not require tools and can ensure airtightness.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable air filter for mining vehicles, characterized in that, include: The air filter unit (100) includes a mounting housing (101), a filter cartridge (102) disposed inside the mounting housing (101), an air inlet pipe (103) that is connected through one side of the mounting housing (101), an air outlet pipe (104) that is connected through one end of the mounting housing (101), and a slag discharge bottom pipe (105) disposed at the bottom of the mounting housing (101). The snap-fit ​​end cap unit (200) is disposed at one end of the mounting housing (101) and includes an end cap (201), a fitting groove (202) opened on one side of the end cap (201), a pressure plate (203) disposed inside the fitting groove (202), a connecting rod (204) fixed to one side of the pressure plate (203), a first spring (205) fitted outside the connecting rod (204), a pull block (206) connected to the top of the connecting rod (204), mating grooves (207) distributed on the inner walls of both sides of the end cap (201), a snap-fit ​​cone (208) inserted inside the mating groove (207), and a pull rope (209) connected to the snap-fit ​​cone (208) and the pressure plate (203). A drying unit (300), disposed below the slag discharge bottom pipe (105), includes a bottom cover (301), a drying block (302) placed inside the bottom cover (301), a first stepped groove (303) disposed on the inner wall of the bottom cover (301), and a filter plate (304) disposed on the first stepped groove (303); and, The pipe connection unit (400) is disposed inside one end of the air intake pipe (103) and includes an inner contact ring (401), a conical rubber ring (402) disposed on one side of the inner contact ring (401), a connecting cap (403) connected to the end of the air intake pipe (103), and a pressure holding hole (404) through the end of the connecting cap (403).

2. The portable air filter for mining vehicles as described in claim 1, characterized in that: A stepped hole (101a) is provided on the outer wall of the end of the mounting housing (101), and a locking groove (101b) is provided on the inner walls of both sides of the stepped hole (101a) corresponding to the locking cone (208).

3. The portable air filter for mining vehicles as described in claim 2, characterized in that: A limiting block (208a) is connected to the outer wall of one end of the locking cone block (208), and a second spring (208b) is connected to the outer wall of one side of the limiting block (208a).

4. The portable air filter for mining vehicles as described in any one of claims 1 to 3, characterized in that: The end cap (201) has a first through hole (201c) on the outer wall of the mating groove (207) and the pull rope (209) passes through the first through hole (201c).

5. The portable air filter for mining vehicles as described in claim 4, characterized in that: A groove (201a) is provided on the outer wall of the end cap (201), and the pull block (206) is placed inside the groove (201a).

6. The portable air filter for mining vehicles as described in claim 5, characterized in that: Pull handles (206a) are rotatably mounted on the outer walls at both ends of the pull block (206).

7. The portable air filter for mining vehicles as described in claim 5 or 6, characterized in that: A second through hole (201b) is provided on the bottom outer wall of the groove (201a), and the connecting rod (204) passes through the second through hole (201b).

8. The portable air filter for mining vehicles as described in claim 7, characterized in that: The top inner wall of the bottom cover (301) is provided with a first internal thread (301a), and the bottom outer wall of the slag discharge bottom pipe (105) is provided with a first external thread (105a). The first external thread (105a) and the first internal thread (301a) are screwed together.

9. The portable air filter for mining vehicles as described in claim 8, characterized in that: The inner wall of the connecting cover (403) is provided with a second internal thread (403a), and the outer wall of one end of the air inlet pipe (103) is provided with a second external thread (103a). The second internal thread (403a) and the second external thread (103a) are screwed together.

10. The portable air filter for mining vehicles as described in any one of claims 5, 8, or 9, characterized in that: The bottom of the mounting housing (101) is connected to a mounting bracket (101c), and mounting screw holes (101c-1) are distributed on the outer wall of the mounting bracket (101c).

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