Multifunctional calibration device of automobile air flow sensor

Abstract

The utility model relates to the technical field of automobile air flow sensor production, and discloses a multifunctional calibration device of an automobile air flow sensor, which comprises a base, a first side plate, a screw rod, a second side plate, a driving motor and blowing fan blades, a structural groove is formed in the base, a lead screw is rotationally connected into the structural groove through a bearing, the lead screw is sleeved with an internal thread sliding block, a second side plate is fixed to the top of the internal thread sliding block through a bolt, and an air outlet cylinder is fixed to one side of the second side plate through a flange. A gear motor drives a screw rod to rotate to push an internal thread sliding block and a second side plate to move, an automobile air flow sensor is clamped, time and labor are saved, a driving motor drives blowing fan blades to rotate for air exhaust, air flows in the automobile air flow sensor, a first flow meter and a second flow meter are used for detecting air flow, and the detection accuracy is improved. The automobile air flow sensor calibration device is suitable for being widely popularized and used.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air flow sensor production, specifically to the multifunctional calibration device of automobile air flow sensor. BACKGROUND

[0002] The automobile air flow sensor is one of the important sensors of the electronic injection engine, is responsible for measuring the air flow into the engine, and converts it into an electrical signal to the electronic control unit (ECU) as a basic signal to determine the injection amount, and the automobile air flow sensor is a key component in the engine management system, and its normal operation is crucial to ensure the performance, efficiency and emission of the engine.

[0003] Calibration mainly refers to using standard measuring instruments to detect whether the accuracy (precision) of the used instruments meets the standard, which is generally used for high-precision instruments, and the automobile air flow sensor also needs to be calibrated during production.

[0004] The existing automobile air flow sensor calibration device has single function, and personnel need to manually move the side plate or operate the clamp to clamp and fix the automobile air flow sensor, which is time-consuming and laborious. Therefore, we provide a multifunctional calibration device for automobile air flow sensor. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a multifunctional calibration device for automobile air flow sensor, which solves the problems in the background art.

[0006] The utility model provides the following technical scheme: a multifunctional calibration device for automobile air flow sensor, which comprises a base, a first side plate, a lead screw, a second side plate, a drive motor and a blowing fan blade.

[0007] The base is internally provided with a structure groove, the lead screw is rotatably connected to the inside of the structure groove through a bearing, an internally threaded sliding block is arranged on the outside of the lead screw, the second side plate is fixed on the top of the internally threaded sliding block through bolts, the air outlet cylinder is fixed on one side of the second side plate through a flange, the second flow meter is connected to the top of the air outlet cylinder through a threaded groove, the fishing gull reduction motor is installed on one end of the base through a mounting bracket, the first side plate is fixed on one end of the top of the base through bolts, the air inlet cylinder is fixed on one side of the first side plate through a flange, the drive motor is installed in the air inlet cylinder through a mounting bracket, the blowing fan blade is fixed on the output shaft of one side of the drive motor through a key, and the first flow meter is connected to the top of the air inlet cylinder through a threaded groove.

[0008] Further, the output shaft of one side of the reduction motor is fixedly connected to one end of the lead screw through a connecting sleeve, the inside of the structure groove on both sides of the lead screw is fixedly provided with an auxiliary rod through bolts, and the auxiliary rod penetrates the internally threaded sliding block.

[0009] Further, the second side plate far away from the side of the air outlet cylinder and the first side plate far away from the side of the air inlet cylinder are glued with rubber pads, and the second side plate and the first side plate are internally provided with through holes penetrating the rubber pads.

[0010] Further, the air inlet cover is internally fixed with a dustproof net through bolts.

[0011] Further, the detection end of the first flow meter is located in the air inlet cylinder, and the detection end of the second flow meter is located in the air outlet cylinder.

[0012] Further, the base is provided with a reserved groove on the top, and the second side plate penetrates the reserved groove.

[0013] Compared with the prior art, the automobile air flow sensor has the advantages that:

[0014] The automobile air flow sensor is placed between the first side plate and the second side plate, the speed reducer is driven to rotate to drive the inner threaded sliding block and the second side plate on the top of the inner threaded sliding block to move towards the first side plate, so that the automobile air flow sensor is clamped by the first side plate, the rubber pads play the roles of anti-skid and sealing, and the second side plate and the first side plate can firmly clamp the automobile air flow sensor.

[0015] The driving motor is driven to drive the blowing fan blade to rotate at a high speed, external gas is sucked into the air inlet cylinder through the air inlet cover, the gas in the air inlet cylinder flows into the automobile air flow sensor, and then flows out of the automobile air flow sensor through the air outlet cylinder, so that the gas flows in the automobile air flow sensor, the automobile air flow sensor works to detect and display the current flow, the first flow meter is used for flow detection in the air inlet cylinder, the second flow meter is used for flow detection in the air outlet cylinder, and personnel compare the flow displayed by the first flow meter and the second flow meter with the flow displayed by the automobile air flow sensor to understand whether the automobile air flow sensor meets the standard.

[0016] The multifunctional calibration device of the automobile air flow sensor drives the speed reducer to rotate to drive the inner threaded sliding block and the second side plate to move, clamps the automobile air flow sensor, saves time and effort, drives the driving motor to drive the blowing fan blade to rotate to suck the gas, the gas flows in the automobile air flow sensor, and the first flow meter and the second flow meter are used for gas flow detection, so that the automobile air flow sensor is convenient to calibrate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure schematic view of the utility model;

[0018] Fig. 2The base sectional view of the utility model;

[0019] Fig. 3 The intake cylinder internal structure schematic view of the utility model;

[0020] In the drawing: 1, base; 2, first side plate; 3, intake cylinder; 4, structure groove; 5, screw rod; 6, internal thread sliding block; 7, second side plate; 8, air outlet cylinder; 9, speed reducer motor; 10, first flowmeter; 11, second flowmeter; 12, rubber pad; 13, through hole; 14, air inlet cover; 15, dust screen; 16, driving motor; 17, blowing fan blade; 18, auxiliary rod; 19, reserved groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1-3 In the embodiments of the utility model, a base 1, a first side plate 2, a screw rod 5, a second side plate 7, a driving motor 16 and a blowing fan blade 17 are included.

[0023] The base 1 is internally provided with a structure groove 4, the structure groove 4 is internally rotatably connected with the screw rod 5 through a bearing, the screw rod 5 is externally sleeved with an internal thread sliding block 6, the internal thread sliding block 6 is fixed with the second side plate 7 at the top through bolts, the second side plate 7 is fixed with the air outlet cylinder 8 at one side through a flange, the air outlet cylinder 8 is connected with the second flowmeter 11 at the top through a threaded groove, the base 1 is installed with the fishing gull speed reducer motor 9 at one end through a mounting bracket, the base 1 is fixed with the first side plate 2 at one end at the top through bolts, the first side plate 2 is fixed with the intake cylinder 3 at one side through a flange, the intake cylinder 3 is installed with the driving motor 16 through a mounting bracket at the inside, the driving motor 16 is fixed with the blowing fan blade 17 at one side output shaft through a key, and the intake cylinder 3 is connected with the first flowmeter 10 at the top through a threaded groove.

[0024] The output shaft at one side of the speed reducer motor 9 is fixedly connected with one end of the screw rod 5 through a connecting sleeve, the structure groove 4 is internally fixed with the auxiliary rod 18 at both sides of the screw rod 5 through bolts, the auxiliary rod 18 penetrates the internal thread sliding block 6, the speed reducer motor 9 is used for driving the screw rod 5 to rotate, and the auxiliary rod 18 can prevent the internal thread sliding block 6 from rotating along with the screw rod 5 while not affecting the movement of the internal thread sliding block 6.

[0025] The second side plate 7 is away from the rubber pad 12 on the side of the air outlet cylinder 8, and the first side plate 2 is away from the rubber pad 12 on the side of the air inlet cylinder 3, the second side plate 7 and the first side plate 2 are internally provided with through holes 13, the through holes 13 pass through the rubber pad 12, the rubber pad 12 plays a role of anti-skid and sealing, and the through holes 13 are arranged so that the first side plate 2 and the second side plate 7 do not block the flow of the gas.

[0026] The air inlet cylinder 3 is provided with an air inlet cover 14 at one end away from the first side plate 2, the air inlet cover 14 is internally fixed with a dust screen 15 through bolts, and the dust screen 15 is arranged to filter dust and impurities, so that the dust and impurities are prevented from being sucked into the air inlet cover 14.

[0027] The detection end of the first flow meter 10 is located in the air inlet cylinder 3, and the detection end of the second flow meter 11 is located in the air outlet cylinder 8, the first flow meter 10 is arranged to detect the flow of the gas in the air inlet cylinder 3, and the second flow meter 11 is arranged to detect the flow of the gas in the air outlet cylinder 8.

[0028] The bottom plate 1 is provided with a reserved slot 19 at the top, and the second side plate 7 passes through the reserved slot 19, so that the bottom plate 1 does not affect the movement of the second side plate 7.

[0029] The working principle of the utility model is as follows: personnel use the power cord to connect the device with the external power supply, place the automobile air flow sensor between the first side plate 2 and the second side plate 7, open the speed reducer 9 to drive the screw rod 5 to rotate, the screw rod 5 rotates to drive the internal threaded sliding block 6 and the second side plate 7 at the top thereof to move towards the first side plate 2, so that the automobile air flow sensor is clamped by the first side plate 2, the rubber pad 12 plays a role of anti-skid and sealing, so that the second side plate 7 and the first side plate 2 can firmly clamp the automobile air flow sensor, open the driving motor 16 to drive the blowing fan blade 17 to rotate at high speed, the external gas is sucked into the air inlet cylinder 3 through the air inlet cover 14, the gas in the air inlet cylinder 3 flows to the automobile air flow sensor clamped between the second side plate 7 and the first side plate 2 through the multiple through holes 13 in the first side plate 2, and then flows out of the air outlet cylinder 8 through the multiple through holes 13 in the second side plate 7, so that the gas flows in the automobile air flow sensor, the automobile air flow sensor works to detect and display the current flow, the first flow meter 10 is arranged to detect the flow in the air inlet cylinder 3, and the second flow meter 11 is arranged to detect the flow in the air outlet cylinder 8, personnel observe the flow displayed by the first flow meter 10 and the second flow meter 11 and compare the flow with the flow displayed by the automobile air flow sensor, understand whether the automobile air flow sensor meets the standard, and achieve the purpose of calibrating the automobile air flow sensor.

[0030] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A multifunctional calibration device for an automobile air flow sensor, comprising a base (1), a first side plate (2), a lead screw (5), a second side plate (7), a drive motor (16) and a blowing fan blade (17); characterized in that The base (1) is internally provided with a structure groove (4), the structure groove (4) is internally rotatably connected with a lead screw (5) through a bearing, the outer side of the lead screw (5) is sleeved with an internal thread sliding block (6), the top of the internal thread sliding block (6) is fixed with a second side plate (7) through bolts, one side of the second side plate (7) is fixed with an air outlet cylinder (8) through a flange, the top of the air outlet cylinder (8) is connected with a second flow meter (11) through a threaded groove, one end of the base (1) is provided with a speed reducer (9) through a mounting bracket, the top of the base (1) is fixed with a first side plate (2) through bolts, one side of the first side plate (2) is fixed with an air inlet cylinder (3) through a flange, the air inlet cylinder (3) is internally provided with a drive motor (16) through a mounting bracket, the output shaft of the drive motor (16) is fixedly sleeved with a blowing fan blade (17) through a key, and the top of the air inlet cylinder (3) is connected with a first flow meter (10) through a threaded groove.

2. The multi-functional calibrating device for automotive air flow sensor according to claim 1, characterized in that: The output shaft of the speed reducer (9) is fixedly connected with one end of the lead screw (5) through a connecting sleeve, the structure groove (4) is internally fixed with an auxiliary rod (18) through bolts on both sides of the lead screw (5), and the auxiliary rod (18) penetrates the internal thread sliding block (6).

3. The multi-functional calibrating device for automotive air flow sensor according to claim 1, characterized in that: The side of the second side plate (7) away from the air outlet cylinder (8) and the side of the first side plate (2) away from the air inlet cylinder (3) are both glued with rubber pads (12), and the second side plate (7) and the first side plate (2) are both internally provided with through holes (13) penetrating the rubber pads (12).

4. The multi-functional calibrating device for automotive air flow sensor according to claim 1, characterized in that: The air inlet cylinder (3) is provided with an air inlet cover (14) at the end away from the first side plate (2), and the air inlet cover (14) is internally fixed with a dust screen (15) through bolts.

5. The multi-functional calibrating device for automotive air flow sensor according to claim 1, characterized in that: The detection end of the first flow meter (10) is located in the air inlet cylinder (3), and the detection end of the second flow meter (11) is located in the air outlet cylinder (8).

6. The multi-functional calibrating device for automotive air flow sensor according to claim 1, characterized in that: The top of the base (1) is provided with a reserved groove (19), and the second side plate (7) penetrates the reserved groove (19).

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