Air filtering device of vehicle-mounted inflator pump

Abstract

The utility model discloses an air filtering device of a vehicle-mounted inflator pump. The air filtering device comprises a shell, a filter element assembly and a dust removal assembly. The filter element assembly is arranged in the shell and comprises a filter plate, an air inlet pipe and a filter screen; at least two elastic filter plates are coaxially and fixedly arranged in the shell at equal intervals, a plurality of air inlet pipes are uniformly, obliquely and fixedly arranged on each filter plate in a penetrating manner, and a filter screen is fixedly arranged at the air inlet end of each air inlet pipe; according to the air filtering device of the vehicle-mounted inflator pump, the self-cleaning function of the filter screens can be achieved, the situation that the normal use of the filter screens is affected due to the fact that the dust is accumulated on the filter screens is avoided, the filter elements do not need to be replaced regularly, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of air pumps, in particular to an air filter device for a vehicle-mounted air pump. Background Art

[0002] The vehicle air pump is also called an inflator or an air pump. It works by running the internal motor. Principle: When the motor is running and the air is pumped out, the valve of the communicating device is opened by the atmospheric pressure, and the gas enters the cylinder. When the tire is inflated, the valve is closed by the air pressure in the cylinder, and the gas enters the tire. This is also the principle of atmospheric pressure used to inflate cars, balls, and rubber boats.

[0003] After searching: Chinese patent application number is "CN201520113161.1", which discloses a vehicle-mounted air pump with air filter, including a base plate bracket, an air pump body fixedly connected to the base plate bracket, a motor shaft at one end of the air pump body is fixedly connected to a punch cam, the upper end of the punch cam is fixedly connected to an air storage plate, and the outer periphery of the punch cam and the air storage plate connected as one are provided with an air base, a heat sink and a cylinder head in sequence from bottom to top, the cylinder head and the air storage plate form an air cavity connected to the exhaust pipe, and one side of the cylinder head is also connected to an air filter. This technical solution can remove particulate impurities in the air.

[0004] In the process of implementing the present invention, the inventor found that the prior art has the following problems:

[0005] During use, the existing filter device needs to replace the filter element regularly to prevent dust and other particulate impurities from accumulating in the filter device and affecting its normal use. Frequent replacement of the filter element increases the cost of use.

[0006] Therefore, it is an urgent problem to be solved by the present invention to provide an air filter device for a vehicle-mounted air pump which can realize the self-cleaning function of the filter during use, avoid dust accumulation on the filter and affect its normal use, and do not need to replace the filter element regularly, thereby reducing the cost of use. Utility Model Content

[0007] In view of the above technical problems, the purpose of the utility model is to overcome the problem in the prior art that the filter device needs to replace the filter element regularly during use to prevent dust and other particulate impurities from accumulating in the filter device and affecting its normal use, and the frequent replacement of the filter element increases the cost of use. Thus, an air filter device for a vehicle-mounted air pump is provided which can realize the self-cleaning function of the filter during use, prevent dust from accumulating in the filter and affecting its normal use, and does not require regular replacement of the filter element, thereby reducing the cost of use.

[0008] In order to achieve the above object, the utility model provides an air filter device for a vehicle-mounted air pump, the air filter device comprising: a housing, a filter element assembly and a dust removal assembly;

[0009] The filter element assembly is arranged inside the housing, and the filter element assembly comprises: a filter plate, an air intake pipe and a filter screen; wherein,

[0010] At least two elastic filter plates are equidistantly and coaxially fixedly arranged inside the shell, and a plurality of air inlet pipes are evenly and obliquely penetrated and fixedly arranged on each of the filter plates, and a filter screen is fixedly arranged at the air inlet end of each of the air inlet pipes. The shell is also provided with a dust removal component capable of causing the two filter plates to shake so as to shake off the dust on each of the filter screens, and the shell is detachably provided with a dust collection mechanism capable of collecting the dust shaken off the filter screens.

[0011] Preferably, each filter plate comprises: an airbag body and a ring body; wherein,

[0012] The ring body is coaxially fixed inside the shell, and an air bag body filled with gas to expand is fixed inside the ring body. The two air bags on the two filter plates are connected to the dust removal assembly through a connecting rope.

[0013] Preferably, the dust removal assembly comprises: a guide cylinder, a piston, a pull rod and a return spring; wherein,

[0014] A guide cylinder is vertically fixed inside the shell between the two filter plates, and a piston capable of moving in the radial direction of the shell is arranged inside the guide cylinder. One end of the pull rod is fixed to the piston, and the other end thereof extends from the side wall of the shell, and a return spring is sleeved on the pull rod, and the two ends of the return spring are respectively fixed to the guide cylinder and the piston, one end of the connecting rope passes through the end of the guide cylinder and is fixed to the piston, and the other end thereof branches out into two parts and is respectively fixed to the two airbag bodies.

[0015] Preferably, the air filter device further comprises a dust collecting mechanism, wherein the dust collecting mechanism comprises: a sealing plate and a material receiving box; wherein,

[0016] The side walls of the shell located next to the air inlet end of each filter plate are respectively provided with dust collecting grooves connected with the interior thereof, and the sealing plate is detachably attached to the shell through a connecting assembly to seal all the dust collecting grooves, and a material receiving box that can extend out of each dust collecting groove for receiving materials is respectively fixedly provided on the sealing plate.

[0017] Preferably, the connection assembly comprises: a guide rod, a bracket and a clamp; wherein,

[0018] The outer portion of the shell is recessed inward to form an assembly groove for assembling the sealing plate, and insertion holes are respectively opened at both ends of the sealing plate along the axial direction of the shell, and guide rods are respectively fixedly arranged horizontally inside the assembly grooves at both ends of the sealing plate, and each of the guide rods can be slidably provided with a bracket, and each of the brackets is fixedly provided with a bracket that can be inserted into the corresponding insertion hole on the sealing plate, and each of the guide rods is sleeved with a tensioning spring, and the two ends of the tensioning spring are respectively fixed to the bracket and the end of the guide rod.

[0019] Preferably, the connection assembly further comprises: a first magnetic plate and a second magnetic plate; wherein,

[0020] A first magnetic plate is fixedly arranged at the bottom of the assembly groove, and a second magnetic plate capable of being adsorbed on the first magnetic plate is fixedly arranged on the sealing plate facing the housing.

[0021] Preferably, the outer side wall of each of the material receiving boxes is fixedly provided with a first sealing gasket capable of fitting with the dust collecting groove.

[0022] Preferably, a second sealing gasket is fixedly disposed on the second magnetic plate facing the first magnetic plate.

[0023] According to the above technical solution, the beneficial effects of the air filter device of the vehicle-mounted air pump provided by the utility model when in use are as follows:

[0024] (1) When the external air passes through each of the air inlet pipes on each of the filter plates in turn, a filter screen is fixedly arranged at the air inlet end of each of the air inlet pipes, so that when the gas passes through the interior of the housing from the air inlet end of the air inlet pipe, the dust mixed in the gas is blocked by the filter screen. Since the air inlet end of the air inlet pipe is inclined toward the interior of the housing, the dust blocked on the filter screen falls from the filter screen under the action of its own gravity, which can prevent dust from accumulating on the filter screen, realize the self-cleaning function, and extend its service life.

[0025] (2) The utility model uses the dust removal component to make the two filter plates vibrate to shake off the dust on each filter screen, which can further improve its self-cleaning ability and greatly extend its service life.

[0026] Therefore, the utility model can realize the self-cleaning function of the filter, avoid dust accumulation on the filter and affect its normal use, and there is no need to replace the filter element regularly, thereby reducing the use cost.

[0027] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0029] Figure 1 It is a structural schematic diagram of an air filter device of a vehicle-mounted air pump provided in a preferred embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the internal structure of an air filter device of a vehicle-mounted air pump provided in a preferred embodiment of the utility model;

[0031] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle part A;

[0032] Figure 4 It is a structural schematic diagram of a filter element of an air filter device of a vehicle-mounted air pump provided in a preferred embodiment of the utility model;

[0033] Figure 5 It is a structural schematic diagram of a dust removal component of an air filter device of a vehicle-mounted air pump provided in a preferred embodiment of the utility model.

[0034] Description of Reference Numerals

[0035] 1. Shell; 201. Filter plate; 202. Air inlet pipe; 203. Filter screen; 3. Dust collecting groove; 4. Sealing plate; 5. Receiving box; 6. First magnetic plate; 7. Second magnetic plate; 8. Guide rod; 9. Bracket; 10. Clamp; 11. Tension spring; 12. First sealing gasket; 13. Second sealing gasket; 14. Dust removal assembly; 1401. Guide cylinder; 1402. Piston; 1403. Pull rod; 1404. Return spring; 15. Airbag body; 16. Ring body; 17. Connecting rope. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] like Figure 1-5As shown, the utility model provides an air filter device for a vehicle-mounted air pump, the air filter device comprising: a housing 1, a filter element assembly and a dust removal assembly 14;

[0038] The filter element assembly is arranged inside the housing 1, and the filter element assembly comprises: a filter plate 201, an air intake pipe 202 and a filter screen 203; wherein,

[0039] At least two elastic filter plates 201 are equidistantly and coaxially fixedly arranged inside the shell 1, and a plurality of air inlet pipes 202 are evenly and obliquely penetrated and fixedly arranged on each of the filter plates 201, and a filter screen 203 is fixedly arranged at the air inlet end of each of the air inlet pipes 202. The shell 1 is also provided with a dust removal component 14 capable of causing the two filter plates 201 to vibrate so as to shake off the dust on each of the filter screens 203, and the shell 1 is detachably provided with a dust collection mechanism capable of collecting the dust shaken off the filter screens 203.

[0040] In the above scheme, in order to better describe the use process of the device, as Figure 2 and Figure 3 As shown in the figure, the direction of the arrow indicates the direction of gas flow, and the flow direction of the external gas is from right to left.

[0041] When the external gas passes through each of the air inlet pipes 202 on each of the filter plates 201 in turn, and the air inlet end of each of the air inlet pipes 202 is fixedly provided with a filter screen 203, so that the dust mixed in the gas is blocked by the filter screen 203 during the process of the gas passing through the interior of the air inlet end of the air inlet pipe 202, and because the air inlet end of the air inlet pipe 202 is tilted toward the interior of the housing 1, the dust blocked on the filter screen 203 falls from the filter screen 203 under its own gravity, which can prevent dust from accumulating on the filter screen 203, realize the self-cleaning function, and extend its service life. In addition, the dust removal component 14 makes the two filter plates 201 shake to shake off the dust on each of the filter screens 203, which can further improve its self-cleaning ability and greatly extend its service life. And there is no need to replace the filter element regularly, which reduces the cost of use.

[0042] In addition, the dust falling from the filter 203 can be collected by the dust collecting mechanism.

[0043] In a preferred embodiment of the present invention, each filter plate 201 comprises: an airbag body 15 and a ring body 16; wherein,

[0044] The ring body 16 is coaxially fixed inside the shell 1, and an airbag 15 filled with gas to expand is fixed inside the ring body 16. The two airbags 15 on the two filter plates 201 are connected to the dust removal assembly 14 through a connecting rope 17.

[0045] In the above scheme, the dust removal assembly can simultaneously enable the two airbags 15 to drive each filter 203 of each air inlet pipe 202 thereon to vibrate so as to shake off the dust on the filter 203, thereby preventing dust from accumulating on the filter 203 and causing blockage to affect its normal use.

[0046] In a preferred embodiment of the present utility model, the dust removal assembly 14 includes: a guide cylinder 1401, a piston 1402, a pull rod 1403 and a return spring 1404; wherein,

[0047] A guide cylinder 1401 is vertically fixed inside the shell 1 between the two filter plates 201, and a piston 1402 capable of moving in the radial direction of the shell 1 is arranged inside the guide cylinder 1401. One end of the pull rod 1403 is fixed to the piston 1402, and the other end thereof extends from the side wall of the shell 1, and a return spring 1404 is sleeved on the pull rod 1403, and the two ends of the return spring 1404 are respectively fixed to the guide cylinder 1401 and the piston 1402, one end of the connecting rope 17 passes through the end of the guide cylinder 1401 and is fixed to the piston 1402, and the other end thereof branches out into two parts and is respectively fixed to the two airbag bodies 15.

[0048] In the above scheme, the piston 1402 is made of rubber. When the piston 1402 is raised and lowered in the guide cylinder 1401, it can always fit the inner wall of the guide cylinder 1401, thereby playing a sealing role and preventing the gas entering the filter device from escaping from the guide cylinder 1401.

[0049] When using, Figure 2 and Figure 5As shown, the pull rod 1403 is pulled to make the piston 1402 move in the guide cylinder 1401 toward the inner wall of the shell 1 and compress the return spring 1404, so that the airbag bodies 15 of the two filter plates 201 are deformed, and then the pull rod 1403 is loosened. After the piston 1402 loses the pulling force of the pull rod 1403, the piston 1402 moves away from the inner wall of the shell 1 toward its initial position under the action of the return spring 1404. In the process of moving toward the initial position, the airbag bodies 15 of the two filter plates 201 restore their initial shapes. In the process of the airbag bodies 15 restoring their initial shapes, the filter screen 203 inside each of the intake pipes 202 on the two filter cloths 201 can be shaken to shake off the dust on the filter screen 203, thereby preventing dust from accumulating on the filter screen 203 and clogging it to affect its normal use.

[0050] In a preferred embodiment of the present utility model, the air filter device further comprises a dust collecting mechanism, and the dust collecting mechanism comprises: a sealing plate 4 and a material receiving box 5; wherein,

[0051] Dust collecting grooves 3 connected to the interior of the shell 1 are respectively provided on the side walls of the shell 1 located next to the air inlet end of each filter plate 201, and the sealing plate 4 is detachably attached to the shell 1 through a connecting component to seal all the dust collecting grooves 3, and a material receiving box 5 that can extend out of each dust collecting groove 3 for receiving materials is fixedly provided on the sealing plate 4.

[0052] In the above scheme, when used, Figure 2 and Figure 3 As shown, while the sealing plate 4 is attached to the shell 1, the receiving box 5 fixed thereon extends into the bottom of the dust collecting groove 3 to receive dust dropped from the filter element assembly or blocked by the filter element assembly, so as to subsequently clean the dust entering the filtering device.

[0053] In a preferred embodiment of the present utility model, the connection assembly includes: a guide rod 8, a bracket 9 and a clamp 10; wherein,

[0054] The outer portion of the shell 1 is recessed inward to form an assembly groove for assembling the sealing plate 4. Insert holes are respectively opened at both ends of the sealing plate 4 along the axial direction of the shell 1. Guide rods 8 are horizontally fixedly arranged inside the assembly grooves at both ends of the sealing plate 4, and each of the guide rods 8 is slidably provided with a bracket 9. Each of the brackets 9 is fixedly provided with a corresponding insert hole on the sealing plate 4. A tensioning spring 11 is sleeved on each of the guide rods 8, and the two ends of the tensioning spring 11 are respectively fixed to the bracket 9 and the end of the guide rod 8.

[0055] In the above solution, when in use, under the tensioning force of the tensioning spring 11, the clamps on the bracket 9 can be inserted into the insertion holes at both ends of the sealing plate 4, so that the sealing plate 4 can be tightly attached to the housing 1 to block the collection groove 3 of the housing 1. With this fixed connection method, the sealing plate 4 can be quickly removed from the housing 1 to clean the dust collected in the collection box 5, which is easy to operate.

[0056] In the prior art, during the long-term use of the air filter device, the filter element needs to be replaced regularly to ensure its normal use. Regular replacement of the filter element not only increases the cost of use, but also the existing air filter device uses bolts or screws to fix the air filter device. The air filter device must be disassembled and the filter element fixed inside the filter device must be removed for replacement, which is time-consuming and laborious.

[0057] In a preferred embodiment of the present invention, the connection assembly further comprises: a first magnetic plate 6 and a second magnetic plate 7; wherein,

[0058] A first magnetic plate 6 is fixedly disposed at the bottom of the assembly groove, and a second magnetic plate 7 that can be adsorbed on the first magnetic plate 6 is fixedly disposed on the sealing plate 4 facing the housing 1 .

[0059] In the above scheme, the first magnetic plate 6 and the second magnetic plate 7 have opposite magnetism, so an attraction force is generated between the two, and the sealing plate 4 can be tightly adsorbed on the shell 1 through the attraction force generated between the two.

[0060] In a preferred embodiment of the present utility model, the outer side wall of each of the material receiving boxes 5 is fixedly provided with a first sealing gasket 12 that can fit with the dust collecting groove 3.

[0061] In the above scheme, the first sealing gasket 12 plays a sealing role, so that the side wall of each of the receiving boxes 5 can fit tightly with the interior of the dust collecting groove 3 through the sealing gasket 12, preventing gas from escaping from between the dust collecting groove 3 and the receiving box 5.

[0062] In a preferred embodiment of the present invention, a second sealing gasket 13 is fixedly provided on the second magnetic plate 7 facing the first magnetic plate 6 .

[0063] In the above solution, the second sealing gasket 13 further improves the sealing between the housing 1 and the sealing plate 4, and prevents gas from escaping during the inflation process.

[0064] In this embodiment, the first sealing gasket 12 and the second sealing gasket 13 are both made of rubber.

[0065] In summary, the air filter device for the vehicle-mounted air pump provided by the utility model overcomes the problem in the prior art that the filter device needs to replace the filter element regularly during use to prevent dust and other particulate impurities from accumulating in the filter device and affecting its normal use, and the frequent replacement of the filter element increases the cost of use.

[0066] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0067] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0068] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An air filter device for a vehicle-mounted air pump, characterized in that: The air filtering device comprises: a housing (1), a filter element assembly and a dust removal assembly (14); The filter element assembly is arranged inside the housing (1), and comprises: a filter plate (201), an air intake pipe (202) and a filter screen (203); wherein: At least two elastic filter plates (201) are fixedly arranged at equal intervals and coaxially inside the shell (1), and a plurality of air intake pipes (202) are evenly and obliquely penetrated and fixedly arranged on each of the filter plates (201), and a filter screen (203) is fixedly arranged at the air intake end of each of the air intake pipes (202). The shell (1) is also provided with a dust removal component (14) capable of causing the two filter plates (201) to vibrate so as to shake off dust on each of the filter screens (203), and the shell (1) is detachably provided with a dust collection mechanism capable of collecting dust shaken off the filter screens (203).

2. The air filter device of the vehicle-mounted air pump according to claim 1, characterized in that: Each filter plate (201) comprises: an air bag body (15) and a ring body (16); wherein: The ring body (16) is coaxially fixed inside the shell (1), and an air bag body (15) filled with gas to expand is fixedly arranged inside the ring body (16), and the two air bags (15) on the two filter plates (201) are connected to the dust removal assembly (14) via a connecting rope (17).

3. The air filter device of the vehicle-mounted air pump according to claim 2, characterized in that: The dust removal assembly (14) comprises: a guide cylinder (1401), a piston (1402), a pull rod (1403) and a return spring (1404); wherein: A guide cylinder (1401) is vertically fixed inside the shell (1) between the two filter plates (201), and a piston (1402) capable of moving in the radial direction of the shell (1) is arranged inside the guide cylinder (1401). One end of the pull rod (1403) is fixed to the piston (1402), and the other end thereof protrudes from the side wall of the shell (1), and a return spring (1404) is sleeved on the pull rod (1403), and the two ends of the return spring (1404) are respectively fixed to the guide cylinder (1401) and the piston (1402), one end of the connecting rope (17) passes through the guide cylinder (1401) from the end thereof and is fixed to the piston (1402), and the other end thereof branches out into two parts and is respectively fixed to the two airbag bodies (15).

4. The air filter device for a vehicle-mounted air pump according to claim 1, characterized in that: The dust collecting mechanism comprises: a sealing plate (4) and a material receiving box (5); wherein: A dust collecting groove (3) connected to the interior of the housing (1) is provided on the side wall of the housing (1) located next to the air inlet end of each filter plate (201), and the sealing plate (4) is detachably attached to the housing (1) through a connecting assembly to seal all the dust collecting grooves (3), and a material receiving box (5) capable of extending into each dust collecting groove (3) for receiving materials is fixedly provided on the sealing plate (4).

5. The air filter device for a vehicle-mounted air pump according to claim 4, characterized in that: The dust collection mechanism comprises: a guide rod (8), a bracket (9) and a clamp (10); wherein: The outer portion of the shell (1) is recessed inward to form a mounting groove for mounting the sealing plate (4); both ends of the sealing plate (4) are provided with insertion holes along the axial direction of the shell (1); guide rods (8) are fixedly arranged horizontally inside the mounting grooves at both ends of the sealing plate (4); and each guide rod (8) is slidably provided with a bracket (9); each bracket (9) is fixedly provided with a corresponding insertion hole that can be inserted into the sealing plate (4); each guide rod (8) is sleeved with a tensioning spring (11); and both ends of the tensioning spring (11) are respectively fixed to the ends of the bracket (9) and the guide rod (8).

6. The air filter device for a vehicle-mounted air pump according to claim 5, characterized in that: The connection assembly further comprises: a first magnetic plate (6) and a second magnetic plate (7); wherein, A first magnetic plate (6) is fixedly arranged at the bottom of the assembly groove, and a second magnetic plate (7) capable of being adsorbed on the first magnetic plate (6) is fixedly arranged on the sealing plate (4) facing the housing (1).

7. The air filter device for a vehicle-mounted air pump according to claim 4, characterized in that: The outer side wall of each of the material receiving boxes (5) is fixedly provided with a first sealing gasket (12) capable of fitting with the dust collecting groove (3).

8. The air filter device for a vehicle-mounted air pump according to claim 6, characterized in that: A second sealing gasket (13) is fixedly arranged on the second magnetic plate (7) facing the first magnetic plate (6).

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