CN216207566U - Abnormal sound detection device for motor vehicle engine - Google Patents

Abstract

The utility model belongs to the technical field of abnormal sound detection, and particularly relates to an abnormal sound detection device for a motor vehicle engine, which comprises: a base plate; the detection head is arranged on one side above the bottom plate; the bottom plate is also provided with a moving assembly for driving the detection head to move; the moving assembly includes: the first driving piece is fixedly connected to the bottom plate; and the rotating rod is fixedly connected with the first driving piece. In the embodiment, the marking component and the moving component are combined, so that the device can mark the abnormal sound position after the motor vehicle engine is subjected to the full-range abnormal sound detection, and the abnormal sound position, and the detection capability of the device is greatly improved.

Description

Abnormal sound detection device for motor vehicle engine

Technical Field

The utility model belongs to the technical field of abnormal sound detection, and particularly relates to an abnormal sound detection device for an engine of a motor vehicle.

Background

The reason for the abnormal noise of the engine is as follows: 1. deformation of the exhaust pipe: the common exhaust pipe of the front engine motorcycle type extends from the bottom of the motorcycle to the tail of the motorcycle, and the exhaust pipe is easy to dent and deform when a road is broken or the exhaust pipe collides with a chassis. The deformed exhaust pipe increases the resistance of the exhaust gas, so that the exhaust pipe generates a buzzing and a resonance feeling, and the sound is transmitted from the engine. 2. Loosening parts: the vehicle has parts loose, such as a fender panel or a trim cover of an engine compartment. It is also possible that the sheet metal parts of the vehicle are thin, and vibration and resonance are generated when the vehicle is driven at high speed. 3. Abnormality of the engine: the abnormal noise of the engine represents that the technical state of a certain mechanism of the engine is changed. Mainly caused by excessive wear of some parts or improper assembly and adjustment. Some abnormal sounds can predict that the engine will be possibly damaged by accident, so when the engine has abnormal sounds, the engine should be repaired in time to prevent the fault from being enlarged.

When the conventional abnormal sound detection device for the motor vehicle engine detects the abnormal sound of the motor vehicle engine, the position of the abnormal sound cannot be accurately pointed out, and after the abnormal sound is detected, the abnormal sound detection device needs to be manually and accurately positioned, so that the abnormal sound detection capability of the motor vehicle engine is greatly influenced.

Therefore, the existing abnormal sound detection device for the motor vehicle engine cannot accurately position the abnormal sound of the motor vehicle engine, has limited detection capability and is not suitable for popularization and use.

SUMMERY OF THE UTILITY MODEL

An object of an embodiment of the present invention is to provide an abnormal sound detection device for an engine of a motor vehicle, so as to solve the above technical problem, the abnormal sound detection device for an engine of a motor vehicle, including:

a base plate; the detection head is arranged on one side above the bottom plate;

the bottom plate is also provided with a moving assembly for driving the detection head to move;

the moving assembly includes:

the first driving piece is fixedly connected to the bottom plate; the rotating rod is fixedly connected with the first driving piece;

the other side of the rotating rod is also provided with a sliding rod which is connected to the bottom plate in a sliding manner;

the sliding rod is also rotatably connected with a rotary table; and a connecting rope attached to the rotary disc;

one side of the connecting rope is fixedly connected with the bottom plate, and the other side of the connecting rope is fixedly connected with the sliding block; and a telescopic member arranged below the sliding block.

Furthermore, the detection head is fixedly connected to the sliding block, one side of the telescopic piece is fixedly connected with the sliding block, and the other side of the telescopic piece is fixedly connected with the bottom plate.

Further, the abnormal sound detection device for the motor vehicle engine further comprises:

and the marking assembly is fixedly connected to one side of the sliding block and is used for marking the abnormal sound part of the motor vehicle engine.

Further, the marking assembly includes:

the rotating handle is arranged on one side of the sliding block; the worm is fixedly connected with the rotating handle;

a worm wheel arranged on one side of the worm; the driving gear is fixedly connected with the worm gear;

a driven gear engaged with the driving gear;

and the marking head is fixedly connected with the driven gear.

Furthermore, the marking head is rotatably connected with the sliding block, and the driven gear is also rotatably connected with the sliding block.

The device for detecting the abnormal sound of the motor vehicle engine can detect the abnormal sound of the motor vehicle engine by arranging the detection head, can detect the motor vehicle engine in a full range by arranging the moving component, and can mark the abnormal sound position of the motor vehicle engine by arranging the marking component.

Drawings

Fig. 1 is a schematic structural diagram of an abnormal noise detection device for an engine of a motor vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a moving assembly used in an abnormal noise detection device of an engine of a motor vehicle according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a slider and a detection head of the abnormal sound detection device for the engine of the motor vehicle according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a marking assembly used in an abnormal noise detection device of an engine of a motor vehicle according to an embodiment of the present invention.

In the drawings: 1. a base plate; 2. a detection head; 3. a moving assembly; 301. a first servo motor; 302. a rotating rod; 303. a slide bar; 304. a turntable; 305. connecting ropes; 306. a return spring; 307. a slider; 4. a marking component; 401. turning a handle; 402. a worm; 403. a worm gear; 404. a driving gear; 405. a driven gear; 406. and marking the head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1, fig. 2 and fig. 3, an abnormal sound detection device for an engine of a motor vehicle according to an embodiment of the present invention includes:

a base plate 1; and a detection head 2 arranged on one side above the bottom plate 1;

the bottom plate 1 is also provided with a moving assembly 3 for driving the detection head 2 to move;

the moving assembly 3 comprises:

the first driving piece is fixedly connected to the bottom plate 1; and a rotating rod 302 fixedly connected with the first driving piece;

the other side of the rotating rod 302 is also provided with a sliding rod 303, and the sliding rod 303 is connected to the bottom plate 1 in a sliding manner;

the sliding rod 303 is also rotatably connected with a turntable 304; and a connecting rope 305 attached to the turntable 304;

one side of the connecting rope 305 is fixedly connected with the bottom plate 1, and the other side of the connecting rope is fixedly connected with a sliding block 307; and a telescoping member 306 disposed below the slider.

In the embodiment of the present invention, the size and the shape of the bottom plate 1 are not limited, the size of the bottom plate 1 may be determined according to the size of the moving assembly 3 above the bottom plate 1, the shape of the bottom plate 1 may be a cabinet shape or a plate shape, the specific shape may be determined according to actual use requirements, the first driving member is the first servo motor 301 or a stepping motor, the first servo motor 301 is fixedly connected to the bottom plate 1, the output end of the first servo motor 301 is fixedly connected to the rotating rod 302, the telescopic member may be the return spring 306 or a rubber rod, and the detection head 2 may be a common abnormal sound detector of an automobile engine in the market, such as an LT10 engine failure stethoscope.

In the present embodiment, when the detection head 2 detects abnormal noise, the first servo motor 301 stops operating.

In practical use, when the first servo motor 301 is activated, the rotating rod 302 can be rotated, and the sliding rod 303 can be used to move the turntable 304 on the base plate 1, and when the turntable 304 moves, the connecting rope 305 can be used to drive the sliding block to move on the base plate 1, so that the detection head 2 can move, and the full-range detection of the motor vehicle is completed.

In an embodiment of the present invention, referring to fig. 2, the detection head 2 is fixedly connected to the slider, one side of the telescopic member is fixedly connected to the slider, and the other side of the telescopic member is fixedly connected to the bottom plate 1.

In this embodiment, one side of the return spring is fixedly connected with the slider, and the other side is fixedly connected with the bottom plate 1, so that when the slider moves to one side of the first servo motor 301, the slider can be supported, and when the slider moves to the other side, the slider can be driven to return.

In an embodiment of the present invention, referring to fig. 1, the abnormal noise detection apparatus for an engine of a motor vehicle further includes:

and the marking component 4 is fixedly connected to one side of the sliding block and is used for marking the abnormal sound part of the motor vehicle engine.

In the embodiment, the marking assembly 4 is arranged, so that an operator can clearly mark the abnormal sound position of the motor vehicle engine, and the abnormal sound position of the motor vehicle engine can be positioned.

In one embodiment of the present invention, referring to fig. 4, the marking element 4 includes:

a rotating handle 401 arranged at one side of the sliding block; a worm 402 fixedly connected with the rotating handle 401;

a worm wheel 403 provided on one side of the worm 402; and a driving gear 404 fixedly connected with the worm gear 403;

a driven gear 405 engaged with the driving gear 404;

and a marking head 406 fixedly connected with the driven gear 405.

In the embodiment of the present invention, the driving gear 404 and the driven gear 405 are both rotatably connected to one side of the slider.

In practical use, when the rotating handle 401 is rotated, the worm 402 is rotated, so that the worm wheel 403 is rotated, the worm wheel 403 drives the driving gear 404 to rotate, when the driving gear 404 rotates, the driving gear meshes to drive the driven gear 405 to rotate, and the marking head 406 on the driven gear 405 also rotates at the same time, so that the marking of the abnormal sound position of the engine of the motor vehicle is completed.

In one embodiment of the present invention, referring to fig. 4, the marking head 406 is rotatably coupled to the slider, and the driven gear 405 is also rotatably coupled to the slider.

In this embodiment, the marking head 406 is rotatable together with the driven gear 405.

In practical use, when the abnormal sound position of the motor vehicle engine needs to be detected, the rotating handle 401 is rotated, so that the worm wheel 403 rotates, the driving gear 404 is driven by the worm wheel 403 to rotate, when the driving gear 404 rotates, the driven gear 405 is driven by meshing, the marking head 406 on the driven gear 405 also rotates simultaneously, so that the marking head 406 extends out, when the first servo motor 301 is started, the rotating rod 302 can rotate, the rotating disc 304 can move on the bottom plate 1 through the sliding rod 303, when the rotating disc 304 moves, the connecting rope 305 can drive the sliding block to move on the bottom plate 1, so that the detection head 2 moves, the full-range detection of the motor vehicle engine is completed, when the abnormal sound is detected by the detection head 2, the first servo motor 301 stops working, and the abnormal sound position of the motor vehicle engine can be judged by observing the marking head 406

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A device for detecting abnormal noise of an engine of a motor vehicle, comprising:

a base plate; the detection head is arranged on one side above the bottom plate;

the bottom plate is also provided with a moving assembly for driving the detection head to move;

the moving assembly includes:

the first driving piece is fixedly connected to the bottom plate; the rotating rod is fixedly connected with the first driving piece;

the other side of the rotating rod is also provided with a sliding rod which is connected to the bottom plate in a sliding manner;

the sliding rod is also rotatably connected with a rotary table; and a connecting rope attached to the rotary disc;

one side of the connecting rope is fixedly connected with the bottom plate, and the other side of the connecting rope is fixedly connected with the sliding block;

the sliding block is connected with the bottom plate in a sliding manner; and a telescopic member arranged below the sliding block.

2. The abnormal noise detection device for the motor vehicle engine as claimed in claim 1, wherein the detection head is fixedly connected to the slider, one side of the extensible member is fixedly connected to the slider, and the other side of the extensible member is fixedly connected to the bottom plate.

3. The apparatus for detecting abnormal noise of an engine of a motor vehicle according to claim 1, further comprising:

and the marking assembly is fixedly connected to one side of the sliding block and is used for marking the abnormal sound part of the motor vehicle engine.

4. The apparatus for detecting abnormal noise in an engine of a motor vehicle according to claim 3, wherein said flag assembly includes:

the rotating handle is arranged on one side of the sliding block; the worm is fixedly connected with the rotating handle;

a worm wheel arranged on one side of the worm; the driving gear is fixedly connected with the worm gear;

a driven gear engaged with the driving gear;

and the marking head is fixedly connected with the driven gear.

5. The apparatus of claim 4 wherein the marking head is rotatably coupled to the slider and the driven gear is also rotatably coupled to the slider.

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