CN112918389B - Chassis Abnormal Noise Collector Fixing Device - Google Patents

Abstract

The invention belongs to the technical field of supporting members of elements for receiving signals, and discloses a chassis abnormal sound collector fixing device which comprises a mounting plate, a connecting plate and a fixing piece, wherein the mounting plate, the connecting plate and the fixing piece are sequentially connected; the fixing piece comprises two fixing blocks and a plurality of clamping rods, the fixing blocks are arc-shaped, and the inner arc surfaces of the two fixing blocks are arranged oppositely; the clamping rod is in threaded connection with the fixed blocks, penetrates through the fixed blocks and extends towards the middle of the circle center formed by the two fixed blocks. The invention solves the problem that the collector is directly adsorbed on the frame through the magnet and the adsorption capacity of the magnet is limited in the conventional automobile abnormal sound collection, so that the collector can shake or fall off in the driving process of the automobile to cause low abnormal sound diagnosis accuracy.

Description

Chassis Abnormal Noise Collector Fixing Device

technical field

The invention belongs to the technical field of supporting components of signal-receiving components, and in particular relates to a fixing device for a chassis abnormal noise collector.

Background technique

During the use of the car, there may be abnormal noises, which means that parts may be loose or worn. Therefore, it is necessary to diagnose the parts where the abnormal noises occur, so as to repair the car. The diagnosis of the location where the abnormal noise occurs is usually collected by the sound collector and then judged. During diagnosis, the collector is adsorbed on the vehicle frame by magnets, but the magnet’s adsorption force is limited, so the collector will shake or even fall during the driving process of the vehicle, resulting in poor diagnostic accuracy. It is not even possible to diagnose the location of the abnormal noise.

Contents of the invention

The present invention intends to provide a chassis abnormal noise collector fixing device to solve the problem that when the current automobile produces abnormal noise, the specific abnormal noise collection is by directly adsorbing the collector on the vehicle frame with a magnet, and the adsorption capacity of the magnet is limited. , so the collector will shake or fall during the driving process of the vehicle, resulting in low accuracy of abnormal noise diagnosis.

In order to achieve the above object, the present invention provides the following technical solutions, including a mounting plate connected in sequence, a connecting plate and a fixture for fixing the collector, a vacuum suction plate is arranged on the upper surface of the mounting plate, and the connecting plate faces toward the fixing piece. The setting is inclined downward; the fixing piece includes two fixing blocks and several clamping rods, the fixing blocks are all arc-shaped, and the inner arc surfaces of the two fixing blocks are set opposite; the fixed block, and the clamping rod extends towards the middle of the circle formed by the two fixed blocks.

The technical principle of this technical solution:

The collector is placed between the two fixed blocks, and the position of the clamping rod is moved by rotating the clamping rod until the clamping rod touches the collector to complete the fixing of the collector. After the collector is fixed, the mounting plate is fixed on the frame of the chassis with a vacuum suction cup, thereby completing the fixation of the collector, which is convenient for the collector to collect the abnormal sound of the chassis.

The beneficial effects of this technical solution:

1. When it is necessary to collect abnormal noise, this technical solution uses a vacuum adsorption plate to fix the fixing device and the collector on the chassis frame. Compared with the prior art that uses magnet adsorption and fixation, the vacuum adsorption plate can achieve a more stable fixation , to reduce the probability of the collector shaking and falling while the vehicle is running;

2. Use the vacuum adsorption plate to fix, the position can be adjusted very conveniently, and the adaptability is strong; and there will be no abnormal noise between the vacuum adsorption plate and the frame, which can improve the accuracy of abnormal sound collection;

3. By rotating the clamping lever, the position of the clamping lever can be adjusted, and it is very convenient to clamp and loosen the collector;

4. Connect the mounting plate and the fixing parts through the connecting plate, and the connecting plate is set at an angle, so that there is a certain gap between the collector and the chassis, so as to avoid abnormal noise caused by the close contact between the collector and the chassis and affect the abnormal sound itself The problem of acquisition accuracy arises.

To sum up, the fixing device provided by the technical solution can stably fix the abnormal noise collector on the chassis of the vehicle, thereby accurately collecting the abnormal noise of the vehicle and providing a corresponding solution.

Further, a pressing block is fixed on one end of the clamping rod located between the two fixing blocks.

Beneficial effect: the setting of the pressing block can increase the contact area between the collector and the collector during pressing, thereby increasing the frictional force and improving the fixing effect on the collector.

Further, the pressing block is arc-shaped.

Beneficial effect: the arc-shaped pressing block can better wrap and fix the collector, and improve the fixing effect.

Further, the pressing block is made of flexible material.

Beneficial effect: the flexibility of the flexible material is strong, and can better wrap the compression block, so that the fixing effect is better.

Further, a suction cup is provided on the inner arc surface of the compression block, and a through hole is provided on the suction cup; a first flow channel and a diversion hole connecting the first flow channel and the through hole are provided in the compression block, and a second flow channel is provided in the fixed block. Two runners, each compression block is provided with a negative pressure pipe and a pressure relief pipe connected with the first flow passage, and the ends of the negative pressure pipe and the pressure relief pipe far away from the first flow passage are connected with the second flow passage; the negative pressure A one-way air inlet valve is provided in the pipe to guide the gas from the first flow channel to the second flow channel, and a one-way air outlet valve is provided in the pressure relief pipe to guide the gas from the second flow channel to the first flow channel.

Beneficial effect: the suction cup is provided, the collector can be sucked tightly, and the risk of shaking or falling of the collector during driving of the car is reduced. The suction cup communicates with the first flow channel in the compression block, and a negative pressure tube and a pressure relief tube are arranged between the first flow channel and the second flow channel. When the collector is clamped, the one-way air outlet valve in the pressure relief tube is closed. Twist the clamping rod, and the clamping rod drives the suction cup to move towards the collector. And the clamping rod squeezes the suction cup, so that the gas between the suction cup and the collector enters the second flow channel through the negative pressure tube. Since the one-way outlet valve in the pressure relief tube is closed, the gas entering the second flow channel cannot pass through the pressure relief tube. The pipe is discharged, so that the negative pressure on the suction cup can be realized, and the clamping of the collector can be completed.

Further, the one-way intake valve includes a mounting ring and a sealing disc, the mounting ring is coaxially welded in the negative pressure pipe, the sealing disc is hinged on the side of the mounting ring close to the fixed block, and the sealing disc can close the mounting ring, and the mounting The side of the ring close to the fixed block is provided with a first magnetic block, and the side of the sealing disk close to the installation ring is provided with a second magnetic block which is mutually attracted to the first magnetic block.

Beneficial effects: when the suction cup is pressed on the collector, the suction cup is squeezed, so that the gas in the suction cup enters the first flow channel, and the gas impacts the sealing disc in the installation ring, and the impact force of the gas overcomes the first magnetic block The attractive force between the second magnetic block makes the sealing disk rotate, thereby opening the negative pressure tube and realizing the introduction of gas into the second flow channel. After the suction cup and the collector are fixed, there is no gas impact on the sealing disc, so the sealing disc rotates in reverse under the action of gravity and the attraction force between the first magnetic block and the second magnetic block, and the sealing disc Adhere to the installation ring, block the negative pressure pipe to avoid the reverse flow of gas, so as to complete the negative pressure on the suction cup and suck the collector tightly.

Further, a flexible strip is provided on the side close to the installation ring and the sealing disc, and the first magnetic block and the second magnetic block are embedded in the flexible strip.

Beneficial effects: the installation of flexible strips can reduce the noise generated by the collision between the installation ring and the sealing disk when the sealing disk falls; and the flexible strips can make the sealing effect better and reduce the flow of gas from the second flow channel to the second flow channel. Probability of a stream leak.

Further, the one-way air outlet valve includes a sealing block that runs through the pressure relief pipe, and the pressure relief pipe is provided with a sealing strip that is attached to the side wall of the sealing block; the clamping rod is provided with an extrusion block that can be attached to the sealing block. The block is helically arranged on the clamping rod, and the thickness of the extruded block increases along the direction of approaching the fixed block.

Beneficial effects: when the clamping rod is tightened, the extrusion block is driven to rotate, and the extrusion block moves toward the direction of the collector, and the extrusion block gradually pushes the sealing block to move, so that the side of the sealing block is completely attached to the sealing strip, thereby completing The seal of the pressure relief pipe carries out negative pressure on the suction cup. When the collector is removed, turn the clamping lever in the opposite direction, and the extrusion block gradually loosens the sealing block, so that the pressure relief pipe connects the first flow path and the second flow path, so the gas in the second flow path enters the first flow path , and enter between the suction cup and the collector, loosen the collector for easy removal.

Further, the clamping rod includes a rotating rod and a moving rod, the moving rod is slidably connected in the rotating rod along the axial direction, and the extruding block is arranged on the rotating rod.

Beneficial effects: when the clamping rod is tightened, it can drive the moving rod to move synchronously towards the direction of the collector, thereby completing the tightness of the collector; and when the collector is removed, the suction cup and the collector are sucked tightly at this time and reversely rotated When turning the rod, only the rotating rod moves in the opposite direction, and when the rotating rod is rotated until the extrusion block no longer squeezes the sealing block, the communication between the first flow channel and the second flow channel can be realized, so that the gas enters the suction cup and the collector In between, complete the detachment of the suction cup, thereby taking off the collector. During this process, there is no need to forcibly pull the suction cup, so that the suction cup is separated from the collector.

Further, a third flow channel communicating with the vacuum suction plate is provided in the mounting plate, and a slide plate is slidably connected to the mounting plate to seal the connection between the third flow channel and the vacuum suction plate.

Beneficial effects: after the collector is installed on the fixing device, the fixing device needs to be fixed on the frame of the chassis. At this time, by squeezing the vacuum adsorption plate, the gas between the vacuum adsorption plate and the frame is discharged, and then the slide plate is slid The connection between the third flow channel and the vacuum suction plate is sealed to complete the negative pressure on the vacuum suction plate, and then the entire fixing device is stably installed on the vehicle frame of the chassis.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present invention;

Fig. 2 is A-A direction sectional view in Fig. 1;

Fig. 3 is B-B direction sectional view in Fig. 1;

Fig. 4 is an enlarged view of part C in Fig. 3;

Fig. 5 is an enlarged view of part D in Fig. 3;

Figure 6 is a partial sectional view of Embodiment 2 of the present invention;

FIG. 7 is an enlarged view of part E in FIG. 6 .

Detailed ways

The following is further described in detail through specific implementation methods:

The reference signs in the drawings of the description include: mounting plate 1, third flow channel 11, air guiding groove 12, vacuum suction plate 13, sealing rod 14, gap 141, flexible block 15, connecting plate 2, fixing block 3, the first Second runner 31, negative pressure pipe 4, mounting ring 41, sealing disc 42, pressure relief pipe 5, sealing strip 51, sealing block 52, rubber layer 53, clamping rod 6, rotating rod 61, grip ring 611, Extruding block 612 , moving rod 62 , pressing block 7 , first flow channel 71 , suction cup 72 .

Example 1:

The chassis abnormal noise collector fixing device is basically shown in Figure 1, including the mounting plate 1, connecting plate 2 and fixing parts connected in sequence from left to right, and two vacuum suction plates 13 are fixed on the upper surface of the mounting plate 1. The connecting plate 2 is inclined downward from left to right, so that after installation, the collector has a certain distance from the chassis, so as to avoid friction between the collector and the chassis to generate abnormal noise. The inclination angle of the connecting plate 2 is 30-45°, preferably 35° in this embodiment.

As shown in FIG. 2 , the fixing member includes two fixing blocks 3 and several clamping rods 6 , the fixing blocks 3 are all arc-shaped, and the inner arc surfaces of the two fixing blocks 3 are arranged opposite to each other. The left ends of the two fixing blocks 3 are fixed on the right end of the connecting plate 2; the mounting plate 1, the connecting plate 2 and the fixing block 3 are integrally formed. In this embodiment, four clamping rods 6 are provided, and two clamping rods 6 are provided on each fixing block 3 , and the two clamping rods 6 on each fixing block 3 are arranged along the transverse direction.

The clamping rods 6 all pass through the fixed block 3 and extend towards the inner arc surface of the fixed block 3 , and the clamping rods 6 are screwed on the fixed block 3 . Taking the clamping rod 6 on the left as an example, as shown in Fig. 3, the clamping rod 6 includes a rotating rod 61 and a moving rod 62, the rotating rod 61 is provided with a threaded segment, and the fixed block 3 is provided with a screw threaded with the threaded segment. the threaded hole; the left end of the rotating rod 61 fixes the grip ring 611. A cavity is provided in the rotating rod 61, and the lower end of the moving rod 62 runs through the top of the rotating rod 61, and the lower end of the moving rod 62 extends into the cavity; there is a gap between the cavity and the moving rod 62, so the moving rod 62 can realize Slide along the cavity, and at the same time, the moving rod 62 and the rotating rod 61 can be relatively rotated. A limit block is fixed on one end of the moving rod 62 located in the cavity.

A pressing block 7 is fixed on the right end of the moving rod 62 , the pressing block 7 is arc-shaped, and the inner arc surface of the pressing block 7 and the inner arc surface of the fixed block 3 face the same direction. The pressing block 7 is a flexible material, and the pressing block 7 can be a rubber block, a silica gel block or a latex block, and the pressing block 7 is a rubber block in this embodiment. Two suction cups 72 are arranged on the inner arc surface of the pressing block 7 , and a through hole is arranged in the middle of the suction cups 72 .

The pressing block 7 is provided with a first flow channel 71 , and the pressing block 7 is also provided with two guide holes connecting the first flow channel 71 with the through holes on the two suction cups 72 . A second flow channel 31 is arranged in the fixed block 3, and a negative pressure pipe 4 and a pressure relief pipe 5 are arranged between the compression block 7 and the compression block 7, and the lower ends of the negative pressure pipe 4 and the pressure relief pipe 5 are connected to the second flow channel The channel 31 communicates, and the upper ends of the negative pressure pipe 4 and the pressure relief pipe 5 communicate with the first flow channel 71 . A one-way air inlet valve is provided in the negative pressure pipe 4, which can realize the introduction of the gas in the first flow passage 71 into the second flow passage 31; The gas is introduced into the first channel 71.

The pressure relief pipe 5 is located above the clamping rod 6 , and the negative pressure pipe 4 is located below the clamping rod 6 . As shown in FIG. 4 , the one-way intake valve includes a mounting ring 41 and a sealing disc 42 , the outer diameter of the mounting ring 41 is consistent with the inner diameter of the negative pressure tube 4 , and the mounting ring 41 is welded in the negative pressure tube 4 . The sealing disc 42 is a spring steel sheet, and the sealing disc 42 is welded on the left side wall of the mounting ring 41. The thickness of the sealing disc 42 is 2 mm, so the deformation of the sealing disc 42 can be realized; the diameter of the sealing disc 42 is larger than The inner diameter of the mounting ring 41. A flexible strip is provided on the opposite side of the sealing disc 42 and the mounting ring 41. In this embodiment, the flexible strip is a rubber strip. The flexible strip on the mounting ring 41 is embedded with a first magnetic block. The flexible strip is embedded with a second magnetic block which is mutually attracted to the first magnetic block. When the first flow channel 71 introduces gas into the second flow channel 31, the gas impacts the sealing disc 42, causing the sealing disc 42 to curl, thereby realizing the flow of gas; When the gas is introduced into the flow channel 31, the sealing disk 42 is closely attached to the mounting ring 41 under the mutual attraction of the first magnetic block and the second magnetic block; When the gas flows, it will squeeze the sealing disk 42 , so that the sealing disk 42 and the mounting ring 41 will be more tightly bonded, and the probability of gas flowing from the second flow channel 31 to the first flow channel 71 will be reduced.

As shown in FIG. 5 , the one-way air outlet valve includes a sealing strip 51 and a sealing block 52 , the sealing strip 51 is U-shaped, and the sealing strip 51 is fixed on the upper inner wall of the pressure relief pipe 5 , and the sealing block 52 runs through the bottom of the pressure relief pipe 5 At the bottom, both sides of the sealing block 52 are against the two sides of the sealing strip 51. When the sealing block 52 moves upward, it can be against the top of the sealing strip 51, so that the pressure relief pipe 5 is closed by the sealing block 52 and the sealing strip 51.

The bottom of the pressure relief pipe 5 is also provided with a rubber layer 53 covering the sealing block 52 to prevent the sealing block 52 from falling off from the pressure relief pipe 5 . The rotating rod 61 is provided with an extruding block 612 that can be attached to the sealing block 52. The extruding block 612 is spirally arranged on the rotating rod 61. The thickness of the extruding block 612 gradually increases along the direction close to the fixed block 3, and The thicker end of the extruded block 612 is also connected with a spirally arranged planar block, and the thickness of the planar block is the same as that of the thicker part of the extruded block 612 .

Both the negative pressure pipe 4 and the pressure relief pipe 5 include a hard pipe connected to the fixed block 3 and a flexible pipe connected to the pressing block 7, and the flexible pipe is a corrugated pipe made of rubber.

The specific implementation process is as follows:

After the abnormal sound of the car occurs, when it is necessary to collect the abnormal sound, the collector needs to be fixed on the chassis to collect the abnormal sound. The specific installation method of the collector is to put the collector between two fixed blocks 3 and rotate The clamping rod 6 makes the rotating rod 61 rotate, and moves toward the direction close to the collector. When the rotating rod 61 moves, it drives the moving rod 62 to move, so that the pressing block 7 is offset against the outer wall of the collector, and is driven by the rotating rod 61. The moving rod 62 moves continuously to squeeze the suction cup 72 on the pressing block 7, and the gas between the suction cup 72 and the collector enters the first flow channel 71 through the through hole, and is guided from the first flow channel 71 to the second flow channel. Inside Road 31.

When the gas in the first flow channel 71 is diverted to the second flow channel 31, the extrusion block 612 is driven to rotate due to the rotation of the rotating rod 61, so that the extrusion block 612 squeezes the sealing block 52, so that the sealing block 52 Gradually move up to stick to the sealing strip 51, and then the pressure relief pipe 5 is closed. At this time, the gas can only flow along the negative pressure tube 4 , and when the gas flows, it impacts the sealing disc 42 , causing the sealing disc 42 to detach from the mounting ring 41 and curl up, allowing the gas to enter the second flow channel 31 . When the suction cup 72 is tightly attached to the outer wall of the collector, no gas will enter the second flow channel 31 through the negative pressure tube 4. At this time, the suction force of the sealing disc 42 between the first magnetic block and the second magnetic block Down reset can avoid the backflow of gas in the second flow channel 31; and when the gas in the second flow channel 31 has a tendency to flow back, it will squeeze the sealing disc 42, so that the sealing disc 42 is close to the mounting ring 41, The probability of gas backflow in the second flow channel 31 is further reduced, so as to realize negative pressure on the suction cup 72, and the suction cup 72 can be closely attached to the collector to complete the tight fixation of the collector.

In the process of fixing the collector, the angle of the collector required for each position is different, so the moving distance of the clamping rod 6 on the two fixed blocks 3 can be adjusted according to the actual demand, thereby adjusting the installation angle of the collector.

After the collector is installed on the fixing device, the installation plate 1 is close to the position where the collector needs to be set, so that the vacuum adsorption plate 13 on the installation board 1 is close to the vehicle frame of the chassis, and the installation of the fixing device is completed, and then the collection is realized. The sensor is fixed on the frame of the chassis to facilitate the collection of chassis abnormal noise.

After the acquisition of the abnormal sound is completed, when the collector needs to be removed, the fixing device is now removed from the chassis, and a thin sheet is inserted between the vacuum adsorption disc 13 and the chassis, so that external air enters the vacuum adsorption disc 13, and the suction cup 72 is completed. Disengagement from the chassis, thereby removing the fixture. Reversely twist the rotating rod 61 again, so that the rotating rod 61 moves away from the collector direction, while the moving rod 62 and the sucker 72 remain motionless; due to the reverse rotation of the rotating rod 61, the extruding block 612 is gradually loosened Sealing block 52, so the pressure relief pipe 5 guides the gas in the second flow channel 31 into the first flow channel 71, and enters between the suction cup 72 and the collector, so as to realize the separation of the collector from the suction cup 72 and the compression block 7, which is convenient Remove the collector.

Example 2:

The difference between Embodiment 2 and Embodiment 1 is that, as shown in FIG. 6 , in this embodiment, the mounting plate 1 is provided with a third flow channel 11, the vacuum chuck 72 is provided with a communication hole, and the top of the mounting plate 1 is provided with a There is an air guide groove 12 connecting the communication hole with the third flow channel 11 . It also includes a sealing rod 14 that runs through the mounting plate 1 transversely and is rotatably connected with the mounting plate 1. The rotating rod 61 runs through the air guiding groove 12. As shown in FIG. 7, the sealing rod 14 is located in the air guiding groove 12. Notch 141. A flexible block 15 is arranged in the air guide groove 12 to resist the sealing rod 14, and the flexible block 15 is a silica gel block.

The specific implementation process is as follows:

When installing the fixing device, turn the sealing rod 14 so that the notch 141 part connects the two ends of the air guide groove 12, so when the vacuum adsorption disc 13 is squeezed, the gas between the vacuum adsorption disc 13 and the chassis will enter through the notch 141 Inside the third flow channel 11. When the vacuum suction disc 13 is close to the chassis, turn the sealing rod 14 so that the part of the sealing rod 14 that is not provided with the notch 141 is pressed against the flexible block 15 to realize the sealing of the air guide groove 12, and the vacuum suction disc 13 is now completed. The negative pressure realizes the installation of the fixture.

When it is necessary to remove the fixing device, turn the sealing rod 14 again, so that the gap 141 connects the two ends of the air guide groove 12, and the gas in the third flow channel 11 can be introduced between the vacuum adsorption plate 13 and the chassis, thereby completing the vacuum. The suction disc 13 breaks away from the chassis, which facilitates the removal of the fixing device.

For those skilled in the art, under the premise of not departing from the concept of the technical solution of the present invention, some modifications and improvements can also be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of this patent and the availability of patents.

Claims (8)

1. Chassis abnormal sound collector fixing device, its characterized in that: the vacuum adsorption plate comprises a mounting plate, a connecting plate and a fixing piece for fixing a collector, which are connected in sequence, wherein a vacuum adsorption plate is arranged on the upper surface of the mounting plate, and the connecting plate is downwards inclined towards the direction close to the fixing piece; the fixing piece comprises two fixing blocks and a plurality of clamping rods, the fixing blocks are arc-shaped, and the inner arc surfaces of the two fixing blocks are arranged oppositely; the clamping rod is in threaded connection with the fixed blocks, penetrates through the fixed blocks and extends towards the middle of the circle center formed by the two fixed blocks;

one end of the clamping rod between the two fixed blocks is fixed with a pressing block; a sucker is arranged on the inner arc surface of the pressing block, and a through hole is formed in the sucker; a first flow passage and a flow guide hole for communicating the first flow passage with the through hole are arranged in the compression blocks, a second flow passage is arranged in the fixed block, a negative pressure pipe and a pressure relief pipe which are communicated with the first flow passage are arranged on each compression block, and one ends of the negative pressure pipe and the pressure relief pipe which are far away from the first flow passage are communicated with the second flow passage; the negative pressure pipe is internally provided with a one-way air inlet valve which leads the air from the first flow passage to the second flow passage, and the pressure relief pipe is internally provided with a one-way air outlet valve which leads the air from the second flow passage to the first flow passage.

2. The chassis abnormal sound collector fixing device of claim 1, characterized in that: the compact heap is the arc.

3. The chassis abnormal sound collector fixing device according to claim 2, wherein: the compact heap is flexible material.

4. The chassis abnormal sound collector fixing device according to any one of claims 1 to 3, wherein: the one-way air inlet valve comprises a mounting ring and a sealing disc, the mounting ring is coaxially welded in the negative pressure pipe, the sealing disc is hinged to one side, close to the fixing block, of the mounting ring, the sealing disc can seal the mounting ring, a first magnetic block is arranged on one side, close to the fixing block, of the mounting ring, and a second magnetic block mutually attracted with the first magnetic block is arranged on one side, close to the mounting ring, of the sealing disc.

5. The chassis abnormal sound collector fixing device according to claim 4, wherein: and flexible strips are arranged on one side of the mounting ring close to the sealing disc, and the first magnetic block and the second magnetic block are embedded in the flexible strips.

6. The chassis abnormal sound collector fixing device of claim 5, wherein: the one-way air outlet valve comprises a sealing block penetrating through the pressure relief pipe, and a sealing strip attached to the side wall of the sealing block is arranged in the pressure relief pipe; the clamping rod is provided with an extrusion block which can be attached to the sealing block, the extrusion block is spirally arranged on the clamping rod, and the thickness of the extrusion block is increased along the direction close to the fixing block.

7. The chassis abnormal sound collector fixing device of claim 6, characterized in that: the clamping rod comprises a rotating rod and a moving rod, the moving rod is connected in the rotating rod in an axial sliding mode, and the extrusion block is arranged on the rotating rod.

8. The chassis abnormal sound collector fixing device according to claim 7, wherein: be equipped with the third runner with the vacuum adsorption dish intercommunication in the mounting panel, still sliding connection has the slide sealed with third runner and vacuum adsorption dish intercommunication department in the mounting panel.

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