Distributed vehicle-mounted miniature air pump device for tire pressure calibration

Abstract

The invention provides a distributed vehicle-mounted miniature air pump device for tire pressure calibration, and relates to the technical field of vehicle-mounted air pumps. The base is fixed to a hub, a mounting base block is connected to the base in a clamped mode, and a first fixing screw is rotationally arranged on the mounting base block and is in threaded connection to the base; and a micro air pump main body is fixed on the mounting base block. The air pressure detector can detect the tire pressure in real time and transmit detection data to the microprocessor in real time, the microprocessor is electrically connected with a control module and the miniature air pump body in a cab, and when it is detected that the tire pressure is lower than a threshold value set in the microprocessor, the microprocessor can transmit a signal to the control module; after the control module sends an inflation instruction, the microprocessor controls the micro air pump main body to start inflation; and when the tire pressure reaches a threshold value, the microprocessor can timely control the micro air pump main body to stop inflating, so that automatic control of tire pressure detection and inflating is realized in the whole process, and manual intervention is not needed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted air pump, in particular to a distributed vehicle-mounted micro air pump device for tire pressure calibration. BACKGROUND

[0002] The distributed vehicle-mounted micro air pump device for tire pressure calibration is a vehicle-mounted device integrated in the vehicle, which adopts a multi-unit distributed layout design, can monitor tire air pressure in real time, and automatically or manually inflate the tire to achieve accurate tire pressure calibration.

[0003] The existing device adopts one air pump + multiple air pipes for centralized air supply when inflating, the distribution degree is low, and each tire needs to be inflated one by one, which wastes time and cannot be inflated during vehicle driving; the existing device needs to be manually connected for inflation, cannot realize automatic detection and automatic inflation, and the automation degree is low. SUMMARY

[0004] The present application relates to a distributed vehicle-mounted micro air pump device for tire pressure calibration, which solves the problems of the existing device that adopts one air pump + multiple air pipes for centralized air supply when inflating, the distribution degree is low, each tire needs to be inflated one by one, which wastes time and cannot be inflated during vehicle driving; the existing device needs to be manually connected for inflation, cannot realize automatic detection and automatic inflation, and the automation degree is low.

[0005] The present application provides a distributed vehicle-mounted micro air pump device for tire pressure calibration, which specifically comprises: a base; the base is fixed on the hub, and a mounting base block is clamped on the base; a first fixed screw is rotatably arranged on the mounting base block and is threadedly connected to the base; a micro air pump body is fixed on the mounting base block, a gas supply pipe is arranged on the micro air pump body, a gas supply connector is connected to the gas supply pipe, and the gas supply connector is connected to the inflation nozzle.

[0006] Further, the mounting base block and the first fixed screw together form a mounting assembly, a protection assembly is mounted on the micro air pump body, the protection assembly is composed of a first protective cover, a second fixed screw, a through hole and a first auxiliary seat, the first protective cover covers the micro air pump body, the first protective cover is fixed on the micro air pump body by two second fixed screws, and the first protective cover is a protection piece for the micro air pump body.

[0007] Further, the first protective cover is provided with a through hole at equal intervals, the through hole is a rectangular hole structure, and the through hole provided at equal intervals is a ventilation piece for the micro air pump body.

[0008] Further, the left end face and the right end face of the first protective cover are welded with a first auxiliary seat, the two first auxiliary seats are annular structures, the adjusting portions of the two second fixing screws are cylindrical structures, and the outer walls of the adjusting portions of the two second fixing screws are in elastic contact with the inner walls of the first auxiliary seats.

[0009] Further, the mounting base block is fixed with a power generation assembly, the power generation assembly is composed of a generator, an impeller, a second protective cover, an air inlet hole, a second auxiliary seat and an air outlet hole, the generator is fixed on the mounting base block, the impeller is fixed on the rotating shaft of the generator, and the generator is electrically connected with the storage battery of the micro air pump body through the wind power conversion assembly.

[0010] Further, the generator is fixed with the second protective cover, the second protective cover is made of metal, the second protective cover is sleeved outside the impeller, and the second protective cover is a protective piece of the impeller.

[0011] Further, the second protective cover is provided with the air outlet hole, the second protective cover is provided with the air inlet hole at equal intervals, and the air inlet holes provided at equal intervals are aligned with the impeller.

[0012] Further, the second protective cover is welded with the second auxiliary seat, the second auxiliary seat is located at the air inlet hole position, and the second auxiliary seat is an auxiliary piece for air inlet of the air inlet hole.

[0013] Further, the base is provided with an auxiliary assembly, the auxiliary assembly is composed of a protective seat, a sliding seat, a pressing seat and a threaded rod, the protective seat is fixed on the upper end face of the base, the protective seat is a T-shaped cover structure, the protective seat covers the outside of the gas supply pipe, and the protective seat is a protective piece of the gas supply pipe.

[0014] Further, the protective seat is slidably provided with the sliding seat, one end below the sliding seat is welded with the pressing seat, the pressing seat is in contact with the gas supply connector, the sliding seat is threadedly connected with the threaded rod, and one end below the threaded rod is rotatably arranged on the protective seat.

[0015] Further, the upper end face of the mounting base block is provided with a control box, the control box is internally provided with a microprocessor, the microprocessor is electrically connected with a control module in the cockpit, a gas pressure detector is arranged on the gas supply connector, the gas pressure detector is electrically connected with the microprocessor, and the microprocessor is also electrically connected with the micro air pump body.

[0016] The application provides a distributed vehicle-mounted micro air pump device for tire pressure calibration, and has the following beneficial effects: The application is simple and convenient in operation process, and does not need complex tools and professional technology, thereby reducing the difficulty of installation and later maintenance, facilitating the user to disassemble and overhaul the device according to the actual demand, and reducing the manpower and time input in the maintenance process.

[0017] The application is simple and convenient in operation process, and does not need complex tools and professional technology, thereby reducing the difficulty of installation and later maintenance, facilitating the user to disassemble and overhaul the device according to the actual demand, and reducing the manpower and time input in the maintenance process.

[0018] The application is simple and convenient in operation process, and does not need complex tools and professional technology, thereby reducing the difficulty of installation and later maintenance, facilitating the user to disassemble and overhaul the device according to the actual demand, and reducing the manpower and time input in the maintenance process.

[0019] The application is equipped with a control box, a microprocessor and a gas pressure detector in the precision of air pressure control and the degree of automation. The gas pressure detector can detect the tire pressure in real time and transmit the detection data to the microprocessor in real time. The microprocessor is electrically connected with the control module and the micro air pump body in the cockpit. When the tire pressure is detected to be lower than the threshold value set in the microprocessor, the microprocessor will transmit a signal to the control module. After the control module issues an inflation instruction, the microprocessor controls the micro air pump body to start inflating. When the tire pressure reaches the threshold value, the microprocessor can also control the micro air pump body to stop inflating in time. The whole process realizes the automatic control of tire pressure detection and inflation without manual intervention. Not only the precision of tire pressure control is improved to avoid errors that may occur in manual operation, but also great convenience is provided for users to ensure that the tire always maintains an appropriate tire pressure state and ensures the safety of vehicle driving.

[0020] The auxiliary assembly of the application plays a good protection and fixing role on the gas supply pipe and the gas supply connector. The protection seat is in a T-shaped cover structure covering the outside of the gas supply pipe. On the one hand, it can effectively prevent the gas supply pipe from being damaged due to bumping. On the other hand, it can avoid the bending of the gas supply pipe due to external wind, thereby ensuring the sealing performance between the gas supply connector and the inflation nozzle. At the same time, by rotating the threaded rod, the sliding seat and the extrusion seat can be driven to move downward to extrude and fix the gas supply connector, further preventing the gas supply connector from loosening, ensuring that there is no air leakage phenomenon during the gas supply process, and ensuring the smooth progress of the inflation work and the accuracy of the tire pressure calibration. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0022] The drawings described in the following description only relate to some embodiments of the application, but are not a limitation of the application.

[0023] In the drawings: Figure 1 A perspective view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown. Figure 2 A front view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown. Figure 3 A perspective view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown after removing the hub. Figure 4 A perspective view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown. Figure 3 A perspective view after rotation is shown. Figure 5 A perspective view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown. Figure 3 A perspective view after partial dissection is shown. Figure 6 A perspective view of a distributed vehicle-mounted micro air pump device for tire pressure calibration is shown. Figure 5enlarged view of A in FIG. 1; Figure 7 a perspective view of the auxiliary assembly of the present application is shown; Figure 8 a system configuration diagram of the present application is shown.

[0024] List of reference signs 1, base; 2, mounting assembly; 201, mounting base block; 202, first fixing screw; 3, micro air pump main body; 301, air supply pipe; 302, air supply connector; 4, protection assembly; 401, first protection cover; 402, second fixing screw; 403, through hole; 404, first auxiliary seat; 5, power generation assembly; 501, power generator; 502, impeller; 503, second protection cover; 504, air inlet hole; 505, second auxiliary seat; 506, air outlet hole; 6, control box; 601, microprocessor; 602, air pressure detector; 7, auxiliary assembly; 701, protection seat; 702, sliding seat; 703, extrusion seat; 704, threaded rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art to which the present application belongs. It should also be understood that the terms, such as those defined in a generally used dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless expressly so defined in the embodiments of the present application.

[0027] The terms "first", "second", and similar terms do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "one", "an", or "the" do not denote a quantity limitation, but mean that at least one exists. Similarly, the terms "include" or "contain" and the like mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "up", "down", "front", "back", "top", "bottom", "vertical", and "horizontal" may be used to describe embodiments of the application, but it should be understood that these terms are used only to facilitate the description of the embodiments shown in the drawings, and do not require the actual device to be constructed or operated in a particular orientation. In the following description, the use of terms such as "connected", "coupled", "fixed", and "attached" can mean that two elements or structures are directly connected without other elements or structures, or that two elements or structures are indirectly connected through intermediate elements or structures, unless otherwise explicitly stated herein.

[0028] Embodiment one: please refer to Figures 1 to 8 : The application provides a distributed vehicle-mounted micro air pump device for tire pressure calibration, comprising a base 1; the base 1 is fixed on a hub, and a mounting base block 201 is clamped on the base 1; a first fixing screw 202 is rotatably arranged on the mounting base block 201 and is threadedly connected to the base 1; when the device is disassembled, the first fixing screw 202 is loosened, and the mounting base block 201 is pulled out of the base 1; a micro air pump body 3 is fixed on the mounting base block 201; a gas supply pipe 301 is arranged on the micro air pump body 3; a gas supply connector 302 is connected to the gas supply pipe 301; and the gas supply connector 302 is connected to an air inlet. Compared with the prior art, the device does not rely on a centralized structure of "one air pump + multiple air pipes", but deploys an independent micro air pump unit in each hub, so that four tires can be inflated synchronously during inflation, and the inflation efficiency is high.

[0029] The mounting base block 201 and the first fixing screw 202 together form a mounting assembly 2; a protection assembly 4 is mounted on the micro air pump body 3; the protection assembly 4 is composed of a first protective cover 401, a second fixing screw 402, a through hole 403, and a first auxiliary seat 404; the first protective cover 401 covers the micro air pump body 3; the first protective cover 401 is fixed on the micro air pump body 3 by the two second fixing screws 402; the first protective cover 401 is a protective part of the micro air pump body 3; and in the use process, the first protective cover 401 can achieve bump protection of the micro air pump body 3, thereby improving the safety of the device during use.

[0030] The first protective cover 401 is provided with a through hole 403 in equidistance, the through hole 403 is a rectangular hole structure, the equidistance provided through hole 403 is the ventilation piece of the micro air pump body 3, in the use process, the airflow can enter the first protective cover 401 and contact the micro air pump body 3 through the through hole 403, realize the cooling of the micro air pump body 3, and the cooling effect is good.

[0031] The left end face and the right end face of the first protective cover 401 are both welded with a first auxiliary seat 404, the two first auxiliary seats 404 are both annular structures, the adjusting parts of the two second fixed screws 402 are both cylindrical structures, the outer wall of the adjusting part of the second fixed screw 402 is in elastic contact with the inner wall of the first auxiliary seat 404, under the elastic abutting of the first auxiliary seat 404, the loosening probability of the second fixed screw 402 can be reduced, and the safety of the device in use can be ensured.

[0032] The mounting base 201 is fixed with a power generation assembly 5, the power generation assembly 5 is composed of a generator 501, an impeller 502, a second protective cover 503, an air inlet hole 504, a second auxiliary seat 505 and an air outlet hole 506, the generator 501 is fixed on the mounting base 201, the impeller 502 is fixed on the rotating shaft of the generator 501, the generator 501 is electrically connected with the storage battery of the micro air pump body 3 through a wind power conversion assembly, in the wheel hub rotating driving, the external wind blows the impeller 502 to rotate, the impeller 502 drives the generator 501 to rotate to generate electricity, the generated electricity is stored in the storage battery of the micro air pump body 3, and green energy saving is realized.

[0033] The generator 501 is fixed with the second protective cover 503, the second protective cover 503 is made of metal, the second protective cover 503 is sleeved outside the impeller 502, and the second protective cover 503 is a protective piece of the impeller 502, which can protect the impeller 502 in use.

[0034] The second protective cover 503 is provided with the air outlet hole 506, the second protective cover 503 is provided with the air inlet hole 504 in equidistance, the equidistance provided air inlet hole 504 is opposite to the impeller 502, in the wheel hub rotating process, the gas enters through the air inlet hole 504 and blows the impeller 502 to rotate and finally is discharged through the air outlet hole 506, and the wind power driving of the impeller 502 is realized.

[0035] The second protective cover 503 is welded with the second auxiliary seat 505, the second auxiliary seat 505 is located at the air inlet hole 504 position, and the second auxiliary seat 505 is an auxiliary piece for the air inlet of the air inlet hole 504, when the second protective cover 503 rotates with the wheel hub, more gas can be collected to the air inlet hole 504 through the second auxiliary seat 505, the air inlet efficiency of the air inlet hole 504 is improved, and the practicability is high.

[0036] The base 1 is provided with an auxiliary assembly 7, which is composed of a protection seat 701, a sliding seat 702, an extrusion seat 703 and a threaded rod 704. The protection seat 701 is fixed to the upper end face of the base 1 and has a T-shaped cover structure. The protection seat 701 covers the outside of the air supply pipe 301 and serves as a protection member for the air supply pipe 301. On one hand, the protection seat 701 prevents the air supply pipe 301 from being damaged by collision. On the other hand, the protection seat 701 prevents the air supply pipe 301 from being bent by external wind and affecting the sealing performance between the air supply joint 302 and the inflation nozzle.

[0037] The sliding seat 702 is slidably arranged on the protection seat 701, and the extrusion seat 703 is welded to the lower end of the sliding seat 702. The extrusion seat 703 is in contact with the air supply joint 302. The threaded rod 704 is threadedly connected to the sliding seat 702 and rotatably arranged on the protection seat 701. During use, the threaded rod 704 is rotated to drive the sliding seat 702 and the extrusion seat 703 to move downward. The extrusion seat 703 can extrude and fix the air supply joint 302, so as to prevent the air supply joint 302 from loosening and affecting the sealing performance between the air supply joint 302 and the inflation nozzle.

[0038] In the embodiment two, based on the embodiment one, as shown in the figure, Figures 1-8 The control box 6 is installed on the upper end face of the base block 201. The control box 6 is internally provided with a microprocessor 601, which is electrically connected with a control module in the cockpit. The air supply joint 302 is provided with an air pressure detector 602, which is electrically connected with the microprocessor 601. The microprocessor 601 is also electrically connected with the micro air pump body 3. During use, the air pressure detector 602 detects the tire pressure in real time and sends the tire pressure to the microprocessor 601 in real time. When the tire pressure is lower than a threshold value in the microprocessor 601, the microprocessor 601 sends a signal to the control module. The control module sends an inflation instruction to the microprocessor 601. The microprocessor 601 controls the micro air pump body 3 to inflate. When the air pressure reaches the threshold value in the microprocessor 601, the microprocessor 601 controls the micro air pump body 3 to stop inflating.

[0039] The working principle of the embodiment is as follows: when the device for tire pressure calibration is used, first, the correct installation of the device is completed. The base 1 is fixed on the wheel hub, then the mounting base block 201 is clamped on the base 1, and then the first fixing screw 202 on the mounting base block 201 is rotated to be threadedly connected to the base 1, so that the mounting base block 201 is stably connected to the base 1. At this time, the micro-pump body 3 fixed on the mounting base block 201 is also installed in place. Then, the gas supply connector 302 connected to the gas supply pipe 301 on the micro-pump body 3 is connected to the tire inflation valve, and the protection assembly 4 is processed. The first protective cover 401 is covered on the micro-pump body 3, and the first protective cover 401 is fixed on the micro-pump body 3 through the two second fixing screws 402. At this time, the inner walls of the two annular first auxiliary seats 404 welded on the left and right end faces of the first protective cover 401 are in elastic contact with the outer walls of the cylindrical structures adjusted by the two second fixing screws 402. The elastic abutment of the first auxiliary seat 404 reduces the loosening probability of the second fixing screw 402. Then, the power generation assembly 5 is concerned. The generator 501 is fixed on the mounting base block 201, the impeller 502 fixed on the rotating shaft of the generator 501 is sleeved with the metal second protective cover 503 fixed on the generator 501, the second protective cover 503 is provided with the air exhaust hole 506 and the air inlet hole 504 opposite to the impeller 502, and the second auxiliary seat 505 is welded on the air inlet hole 504. At the same time, the microprocessor 601 is installed in the control box 6 on the upper end face of the mounting base block 201. The microprocessor 601 is electrically connected to the control module in the cockpit, the air pressure detector 602 installed on the gas supply connector 302, and the micro-pump body 3, respectively. The protective seat 701 in the T-shaped cover structure fixed on the base 1 covers the outer side of the gas supply pipe 301. The extrusion seat 703 welded on the lower end of the sliding seat 702 sliding on the protective seat 701 needs to be in contact with the gas supply connector 302. The threaded rod 704 threadedly connected to the sliding seat 702 and rotating at the lower end of the protective seat 701 is rotated. The sliding seat 702 and the extrusion seat 703 are driven by the threads of the threaded rod 704 to move downward. The extrusion seat 703 extrudes and fixes the gas supply connector 302. After the installation is completed, the device can be put into daily use. During the driving of the vehicle, the external wind force will act on the power generation assembly 5 when the wheel hub rotates. The gas enters the second auxiliary seat 505 through the air inlet hole 504 on the second protective cover 503, so that more gas is collected at the air inlet hole 504 to improve the air inlet efficiency. The impeller 502 is blown to rotate, the impeller 502 drives the generator 501 to rotate to generate electricity, and the generated electric energy is stored in the battery of the micro-pump body 3 through the wind power conversion assembly to provide energy for the micro-pump body 3.Meanwhile, the air pressure detector 602 on the air supply connector 302 detects the tire pressure in real time and sends the detected tire pressure data to the microprocessor 601 in the control box 6 in real time. The microprocessor 601 compares the received tire pressure data with the preset threshold value in it. When the detected tire pressure is lower than the threshold value in the microprocessor 601, the microprocessor 601 sends a signal of too low tire pressure to the control module in the cockpit. The driver sends an air filling instruction to the microprocessor 601 through the control module. After receiving the air filling instruction, the microprocessor 601 controls the micro air pump body 3 to start. The micro air pump body 3 fills the tire with air through the air supply pipe 301 and the air supply connector 302. In the air filling process, the first protective cover 401 plays a role in protecting the micro air pump body 3 from being bumped. At the same time, the equidistantly opened rectangular hole-shaped structure through hole 403 on the first protective cover 401 allows air flow to enter the first protective cover 401 and contact the micro air pump body 3, achieving the cooling of the micro air pump body 3. The protective seat 701 prevents the air supply pipe 301 from being damaged by bumping and the bending of the air supply pipe 301 caused by external wind affecting the sealing performance between the air supply connector 302 and the air filling nozzle. When the air pressure detector 602 detects that the tire pressure reaches the threshold value in the microprocessor 601, it sends a signal to the microprocessor 601. The microprocessor 601 controls the micro air pump body 3 to stop filling air. When it is necessary to disassemble the device for maintenance or replacement, first rotate the threaded rod 704 on the protective seat 701 to move the sliding seat 702 and the extrusion seat 703 upward, releasing the extrusion and fixation of the air supply connector 302, then remove the air supply connector 302 from the air filling nozzle, then loosen the two second fixing screws 402 on the first protective cover 401, remove the first protective cover 401 from the micro air pump body 3, then loosen the first fixing screw 202 on the installation base block 201, and pull out the installation base block 201 from the base 1. The disassembly of the device is completed. If it needs to be used later, it can be reinstalled according to the initial installation steps.

[0040] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A distributed vehicle-mounted micro air pump device for tire pressure calibration, characterized in that, include: Base (1); the base (1) is fixed on the hub, and a mounting block (201) is snapped onto the base (1). A first fixing screw (202) is rotatably mounted on the mounting block (201), and the first fixing screw (202) is threaded onto the base (1); a miniature air pump body (3) is fixed on the mounting block (201), and an air supply pipe (301) is provided on the miniature air pump body (3). An air supply connector (302) is connected to the air supply pipe (301), and the air supply connector (302) is connected to the air inlet; the mounting block (201) and the first fixing screw (202) are fixed onto the hub. A fixing screw (202) together form the mounting assembly (2). A protective assembly (4) is installed on the micro air pump body (3). The protective assembly (4) consists of a first protective cover (401), a second fixing screw (402), a through hole (403) and a first auxiliary seat (404). The first protective cover (401) covers the micro air pump body (3). The first protective cover (401) is fixed to the micro air pump body (3) by two second fixing screws (402). The first protective cover (401) is a protective component of the micro air pump body (3).

2. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 1, characterized in that, The first protective cover (401) has through holes (403) at equal intervals. The through holes (403) are rectangular holes. The through holes (403) at equal intervals are ventilation components of the micro air pump body (3).

3. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 2, characterized in that, The first protective cover (401) has a first auxiliary seat (404) welded on both the left and right ends. Both first auxiliary seats (404) are annular structures. The adjustment points of the two second fixing screws (402) are cylindrical structures. The outer walls of the adjustment points of the two second fixing screws (402) are in elastic contact with the inner walls of the first auxiliary seats (404).

4. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 3, characterized in that, The mounting base (201) is fixed with a power generation component (5). The power generation component (5) consists of a generator (501), an impeller (502), a second protective cover (503), an air inlet (504), a second auxiliary seat (505), and an exhaust port (506). The generator (501) is fixed on the mounting base (201). The impeller (502) is fixed on the shaft of the generator (501). The generator (501) is electrically connected to the battery of the micro air pump body (3) through the wind power conversion component.

5. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 4, characterized in that, The generator (501) is fixed with a second protective cover (503), which is made of metal and is fitted onto the outside of the impeller (502). The second protective cover (503) is a protective component for the impeller (502).

6. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 5, characterized in that, The second protective cover (503) has an exhaust hole (506) and an air inlet hole (504) is provided at equal intervals on the second protective cover (503). The air inlet holes (504) are aligned with the impeller (502).

7. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 6, characterized in that, The second protective cover (503) is welded with a second auxiliary seat (505), which is located at the air inlet (504). The second auxiliary seat (505) is an auxiliary component for air intake through the air inlet (504).

8. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 7, characterized in that, An auxiliary component (7) is installed on the base (1). The auxiliary component (7) consists of a protective seat (701), a sliding seat (702), a pressing seat (703), and a threaded rod (704). The protective seat (701) is fixed on the upper end face of the base (1). The protective seat (701) has a T-shaped cover structure. The protective seat (701) covers the outside of the air supply pipe (301). The protective seat (701) is a protective component for the air supply pipe (301).

9. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 8, characterized in that, A sliding seat (702) slides on the protective seat (701), and a pressing seat (703) is welded to one end of the sliding seat (702). The pressing seat (703) contacts the air supply connector (302). A threaded rod (704) is threadedly connected to the sliding seat (702), and one end of the threaded rod (704) rotates on the protective seat (701).

10. A distributed vehicle-mounted micro air pump device for tire pressure calibration according to claim 9, characterized in that, A control box (6) is installed on the upper surface of the mounting base (201). A microprocessor (601) is installed inside the control box (6). The microprocessor (601) is electrically connected to the control module in the cockpit. A pressure detector (602) is installed on the air supply connector (302). The pressure detector (602) is electrically connected to the microprocessor (601). The microprocessor (601) is also electrically connected to the micro air pump body (3).

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