CN112918389A - Fixing device for chassis abnormal sound collector - Google Patents
Fixing device for chassis abnormal sound collector Download PDFInfo
- Publication number
- CN112918389A CN112918389A CN202110126561.6A CN202110126561A CN112918389A CN 112918389 A CN112918389 A CN 112918389A CN 202110126561 A CN202110126561 A CN 202110126561A CN 112918389 A CN112918389 A CN 112918389A
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- Prior art keywords
- block
- abnormal sound
- fixing
- sealing
- collector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
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 for fixing a collector, 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
Technical Field
The invention belongs to the technical field of supporting members of elements for receiving signals, and particularly relates to a fixing device for a chassis abnormal sound collector.
Background
Abnormal sound may occur during the use of the automobile, which means that parts may loosen or wear, so that the part where the abnormal sound occurs needs to be diagnosed, thereby repairing the automobile. The diagnosis of the abnormal sound generation site is generally performed by collecting sound with a collector and then performing judgment. During diagnosis, the collector is adsorbed on the frame by the magnets, but the adsorption force of the magnets is limited, so that the collector can shake or even fall off in the running process of a vehicle, the accuracy of diagnosis is poor, and the position of abnormal sound can not be diagnosed.
Disclosure of Invention
The invention aims to provide a fixing device for a chassis abnormal sound collector, which aims to solve the problem that when the existing automobile generates abnormal sound, the collector is directly adsorbed on a frame by using a magnet, and the adsorption capacity of the magnet is limited, so that the collector can shake or fall off in the driving process of the automobile, and the abnormal sound diagnosis accuracy is low.
In order to achieve the purpose, the invention provides the following technical scheme that the device comprises a mounting plate, a connecting plate and a fixing piece for fixing the collector, 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 technical principle of the technical scheme is as follows:
the collector is placed between the two fixing blocks, the clamping rod is rotated to move until the clamping rod abuts against the collector, and the collector is fixed. After the collector is fixed, the mounting plate is fixed on the frame of the chassis by the vacuum chuck, so that the collector is fixed, and abnormal sound of the chassis can be conveniently collected by the collector.
The beneficial effects of the technical scheme are as follows:
1. when abnormal sound collection is needed, the fixing device and the collector are fixed on the frame of the chassis by the aid of the vacuum adsorption disc, and compared with the prior art that the collector is fixed by the aid of magnet adsorption, the vacuum adsorption disc can realize stable fixation, and the probability that the collector shakes and falls off in the vehicle running process is reduced;
2. the vacuum adsorption disc is used for fixing, so that the position can be conveniently adjusted, and the adaptability is strong; abnormal sound cannot be generated between the vacuum adsorption disc and the frame, so that the accuracy of abnormal sound collection can be improved;
3. the position of the clamping rod can be adjusted by rotating the clamping rod, so that the collector can be very conveniently clamped and loosened;
4. the mounting plate and the fixing part are connected through the connecting plate, the connecting plate is arranged in an inclined mode, a certain gap is formed between the collector and the chassis, the collector is prevented from being attached to the chassis tightly to cause abnormal sound, and the problem that the accuracy of collection of the abnormal sound is affected is solved.
In conclusion, through the fixing device that this technical scheme provided, can be with the stable fixing on the vehicle bottom dish of abnormal sound collector to the accurate collection of the abnormal sound of car, and give corresponding solution.
Furthermore, a pressing block is fixed at one end of the clamping rod between the two fixing blocks.
Has the advantages that: set up the compact heap can increase when compressing tightly and the area of contact between the collector to increase frictional force promotes the fixed effect to the collector.
Further, the compact heap is the arc.
Has the advantages that: curved compact heap can be better wrap up fixedly to the collector, promotes fixed effect.
Furthermore, the pressing block is made of flexible materials.
Has the advantages that: the changeability of flexible material is stronger, the parcel compact heap that can be better for fixed effect is better.
Furthermore, 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.
Has the advantages that: set up the sucking disc, can inhale the collector tightly, reduce the risk that the collector takes place to rock or drop at the car in-process of traveling. The sucking disc is communicated with the first flow channel in the pressing block, a negative pressure pipe and a pressure relief pipe are arranged between the first flow channel and the second flow channel, when the collector is clamped tightly, the one-way air outlet valve in the pressure relief pipe is closed, the clamping rod is screwed, and the clamping rod drives the sucking disc to move towards the collector. And the clamping rod extrudes the sucker, so that gas between the sucker and the collector enters the second flow channel through the negative pressure pipe, and the gas entering the second flow channel cannot be discharged through the pressure relief pipe because the one-way gas outlet valve in the pressure relief pipe is closed, so that the negative pressure of the sucker can be realized, and the clamping of the collector is completed.
Further, 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.
Has the advantages that: when the sucker is tightly pressed on the collector, the sucker is squeezed, so that gas in the sucker enters the first flow channel and impacts the sealing disc in the mounting ring, the impact force of the gas overcomes the attraction between the first magnetic block and the second magnetic block, the sealing disc rotates, the negative pressure pipe is opened, and the gas is guided into the second flow channel. After the sucker and the collector are fixed, gas does not impact the sealing disc any more, so that the sealing disc rotates reversely under the action of gravity and attraction force between the first magnetic block and the second magnetic block, the sealing disc is attached to the mounting ring to plug the negative pressure pipe, gas is prevented from flowing reversely, negative pressure on the sucker is achieved, and the collector is tightly sucked.
Furthermore, flexible strips are arranged on one side, close to the sealing disc, of the mounting ring, and the first magnetic block and the second magnetic block are embedded in the flexible strips.
Has the advantages that: the flexible strip is arranged, so that when the sealing disc falls, the noise generated by the collision of the mounting ring and the sealing disc can be reduced; and moreover, the flexible strips are attached to each other, so that the sealing effect is better, and the probability of gas leakage from the second flow channel to the first flow channel is reduced.
Furthermore, 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.
Has the advantages that: when the clamping rod is screwed down, the extrusion block is driven to rotate and moves towards the collector, the extrusion block gradually pushes the sealing block to move, the side edge of the sealing block is completely attached to the sealing strip, the sealing of the pressure relief pipe is further completed, and negative pressure is carried out on the sucker. When the collector is taken down, the clamping rod is rotated reversely, the sealing block is gradually loosened by the extrusion block, so that the first flow channel is communicated with the second flow channel by the pressure relief pipe, and therefore, gas in the second flow channel enters the first flow channel and enters a space between the sucker and the collector, the collector is loosened, and the collector is convenient to take down.
Further, press from both sides tight pole and include dwang and carriage release lever, the carriage release lever is followed axial sliding connection and is in the dwang, and the extrusion piece sets up on the dwang.
Has the advantages that: when the clamping rod is screwed down, the movable rod can be driven to move synchronously towards the direction of the collector, so that the collector is propped tightly; and when taking off the collector, sucking disc and collector inhale tightly this moment, and during the antiport dwang, only the dwang moves towards opposite direction, treats that the dwang rotates when the sealed piece of extrusion piece no longer extrudees, just can realize the intercommunication of first flow channel and second flow channel, and then makes gas get into between sucking disc and the collector, accomplishes breaking away from of sucking disc to take off the collector. In the process, the sucking disc does not need to be pulled forcibly, so that the sucking disc is separated from the collector.
Furthermore, a third flow channel communicated with the vacuum adsorption disc is arranged in the mounting plate, and a sliding plate for sealing the communication position of the third flow channel and the vacuum adsorption disc is connected in the mounting plate in a sliding manner.
Has the advantages that: after the collector is installed on the fixing device, the fixing device needs to be fixed on a frame of the chassis, at the moment, gas between the vacuum adsorption disc and the frame is exhausted by extruding the vacuum adsorption disc, the third flow channel is sealed with the communication position of the vacuum adsorption disc by the sliding plate, negative pressure on the vacuum adsorption disc is completed, and then the whole fixing device is stably installed on the frame of the chassis.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is an enlarged view of portion D of FIG. 3;
FIG. 6 is a partial sectional view of embodiment 2 of the present invention;
fig. 7 is an enlarged view of a portion E of fig. 6.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the vacuum suction device comprises a mounting plate 1, a third flow channel 11, an air guide groove 12, a vacuum adsorption disc 13, a sealing rod 14, a notch 141, a flexible block 15, a connecting plate 2, a fixed block 3, a second flow channel 31, a negative pressure pipe 4, a mounting ring 41, a sealing disc 42, a pressure relief pipe 5, a sealing strip 51, a sealing block 52, a rubber layer 53, a clamping rod 6, a rotating rod 61, a holding ring 611, a pressing block 612, a moving rod 62, a pressing block 7, a first flow channel 71 and a suction cup 72.
Example 1:
the chassis abnormal sound collector fixing device is basically as shown in the attached drawing 1, and comprises a mounting plate 1, a connecting plate 2 and a fixing piece which are sequentially connected from left to right, wherein two vacuum adsorption discs 13 are fixed on the upper surface of the mounting plate 1. The connecting plate 2 is arranged from left to right in a downward inclined mode, so that after installation, the collector is away from the chassis by a certain distance, and abnormal sound caused by friction between the collector and the chassis is avoided. The angle of inclination of the web 2 is 30-45 deg., preferably 35 deg. in this embodiment.
As shown in the combined figure 2, the fixing piece comprises two fixing blocks 3 and a plurality of clamping rods 6, the fixing blocks 3 are arc-shaped, and the inner arc surfaces of the two fixing blocks 3 are arranged oppositely. The left ends of the two fixed blocks 3 are fixed at 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, the number of the clamping rods 6 is four, two clamping rods 6 are arranged on each fixing block 3, and the two clamping rods 6 on each fixing block 3 are arranged in the transverse direction.
The clamping rods 6 penetrate through the fixing block 3 and extend towards the inner arc surface side of the fixing block 3, and the clamping rods 6 are connected to the fixing block 3 in a threaded mode. Taking the left clamping rod 6 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 section, and the fixed block 3 is provided with a threaded hole in threaded fit with the threaded section; the left end of the rotating lever 61 is fixed with a grip ring 611. A cavity is arranged in the rotating rod 61, the lower end of the moving rod 62 penetrates through the top end 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 that it is possible to realize that the moving rod 62 can slide along the cavity while the moving rod 62 and the rotating rod 61 can relatively rotate. A stop block is secured to the end of the travel bar 62 within the cavity.
The right end of the moving rod 62 is fixed with a pressing block 7, the pressing block 7 is arc-shaped, and the direction of the inner arc surface of the pressing block 7 is the same as that of the inner arc surface of the fixing block 3. The compact heap 7 is flexible material, and compact heap 7 can be rubber block, silica gel piece or latex piece, and compact heap 7 chooses for use the rubber block in this embodiment. Two suckers 72 are arranged on the inner arc surface of the pressing block 7, and through holes are formed in the middle of the suckers 72.
The pressing block 7 is internally provided with a first flow channel 71, and the pressing block 7 is also provided with two flow guide holes for communicating the first flow channel 71 with the through holes on the two suckers 72. Be provided with second flow path 31 in the fixed block 3, be equipped with negative pressure pipe 4 and pressure release pipe 5 between compact heap 7 and the compact heap 7, the lower extreme and the second flow path 31 intercommunication of negative pressure pipe 4 and pressure release pipe 5, the upper end and the first flow path 71 intercommunication of negative pressure pipe 4 and pressure release pipe 5. A one-way air inlet valve is arranged in the negative pressure pipe 4, so that the gas in the first flow passage 71 can be introduced into the second flow passage 31; the pressure relief pipe 5 is provided with a one-way vent valve for introducing the gas in the second flow path 31 into the first flow path 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. Referring to fig. 4, the one-way intake valve includes a mounting ring 41 and a sealing disk 42, the outer diameter of the mounting ring 41 is identical to the inner diameter of the negative pressure pipe 4, and the mounting ring 41 is welded in the negative pressure pipe 4. The sealing disc 42 is a spring steel sheet, the sealing disc 42 is welded on the left side wall of the mounting ring 41, and the thickness of the sealing disc 42 is 2mm, so that 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. Be equipped with the flexible strip on the relative one side of sealed disc 42 and collar 41, the flexible strip is the rubber strip in this embodiment, and the embedded first magnetic path that is equipped with of flexible strip on the collar 41, the embedded second magnetic path that is equipped with and first magnetic path inter attraction of flexible strip on the sealed disc 42. When the first flow passage 71 introduces gas into the second flow passage 31, the gas impacts the sealing disc 42, so that the sealing disc 42 is curled, and the gas flow is realized; when the gas in the first flow channel 71 is not introduced into the second flow channel 31 any more, the sealing disc 42 is tightly attached to the mounting ring 41 under the mutual attraction effect of the first magnetic block and the second magnetic block; when the gas in the second flow channel 31 tends to flow toward the first flow channel 71, the sealing disc 42 is pressed, so that the sealing disc 42 and the mounting ring 41 are better attached, and the probability of the gas flowing from the second flow channel 31 to the first flow channel 71 is reduced.
With reference to 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, the sealing strip 51 is fixed on the inner wall of the upper side of the pressure relief pipe 5, the sealing block 52 penetrates through the bottom of the pressure relief pipe 5, two sides of the sealing block 52 abut against two sides of the sealing strip 51, and when the sealing block 52 moves upwards, the sealing block 52 and the sealing strip 51 can abut against the top of the sealing strip 51, so that the pressure relief pipe 5 is sealed 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 wrapping the sealing block 52, so that the sealing block 52 can be prevented from falling off from the pressure relief pipe 5. The rotating rod 61 is provided with an extrusion block 612 which can be attached to the sealing block 52, the extrusion block 612 is spirally arranged on the rotating rod 61, the thickness of the extrusion block 612 is gradually increased along the direction close to the fixing block 3, the end with the large thickness of the extrusion block 612 is also connected with a plane block which is spirally arranged, and the thickness of the plane block is the same as that of the part with the large thickness of the extrusion block 612.
The negative pressure pipe 4 and the pressure relief pipe 5 both comprise a hard pipe connected with the fixed block 3 and a flexible pipe connected with the pressing block 7, and the flexible pipe is a corrugated pipe made of rubber.
The specific implementation process is as follows:
after the car takes place the abnormal sound, when needing to carry out the abnormal sound collection, need fix the collection that carries out the abnormal sound on the chassis with the collector, specific collector mounting method does, put into the collector between two fixed blocks 3, and rotate clamping bar 6, make dwang 61 rotate, and move to the direction that is close to the collector, it removes to drive carriage release lever 62 when dwang 61 removes, thereby make compact heap 7 and collector outer wall offset, and drive carriage release lever 62 along with dwang 61 and move continuously, extrude sucking disc 72 on the compact heap 7, gas between sucking disc 72 and the collector just gets into in first flow channel 71 through the through-hole, and from in the first flow channel 71 water conservancy diversion to in the second flow channel 31.
When the gas in the first flow channel 71 is guided into the second flow channel 31, the rotating rod 61 rotates to drive the extrusion block 612 to rotate, so that the extrusion block 612 extrudes the sealing block 52, the sealing block 52 gradually moves upwards to be attached to the sealing strip 51, and the pressure relief pipe 5 is closed. At this time, the gas flows only along the negative pressure tube 4, and when the gas flows, the sealing disk 42 is impacted, so that the sealing disk 42 is separated from the mounting ring 41 and curls, and the gas enters the second flow passage 31. When the suction cup 72 is tightly attached to the outer wall of the collector, no gas enters the second flow channel 31 through the negative pressure pipe 4, and at the moment, the sealing disc 42 is reset under the attraction between the first magnetic block and the second magnetic block, so that the gas in the second flow channel 31 can be prevented from flowing back; and when the gas in the second flow passage 31 has a tendency of backflow, the sealing disc 42 is pressed, so that the sealing disc 42 is tightly attached to the mounting ring 41, the probability of backflow of the gas in the second flow passage 31 is further reduced, the suction cup 72 is subjected to negative pressure, and the suction cup 72 can be tightly attached to the collector to complete tight fixation of the collector.
In the fixing process of the collector, the angle of the collector required in each position is different, so that the moving distance of the clamping rods 6 on the two fixing blocks 3 can be adjusted according to actual requirements, and the mounting angle of the collector can be adjusted.
After the collector is installed on the fixing device, the mounting plate 1 is tightly attached to the position where the collector needs to be arranged, so that the vacuum adsorption disc 13 on the mounting plate 1 is tightly attached to the frame of the chassis, the fixing device is installed, the collector is fixed on the frame of the chassis, and abnormal sound of the chassis can be collected conveniently.
After the abnormal sound is collected, when the collector needs to be taken down, the fixing device is taken down from the chassis, the sheet is inserted between the vacuum adsorption disc 13 and the chassis, so that external air enters the vacuum adsorption disc 13, the sucking disc 72 is separated from the chassis, and the fixing device is taken down. The rotating rod 61 is screwed reversely again, so that the rotating rod 61 moves towards the direction away from the collector, and the moving rod 62 and the sucking disc 72 are kept still at the moment; because the rotating rod 61 rotates reversely, the extrusion block 612 gradually loosens the 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, the collector is separated from the suction cup 72 and the pressing block 7, and the collector is convenient to take down.
Example 2:
The specific implementation process is as follows:
when the fixing device is installed, the sealing rod 14 is rotated such that the notches 141 partially communicate with both ends of the air guide groove 12, and thus, when the vacuum adsorption disk 13 is pressed, air between the vacuum adsorption disk 13 and the base plate enters the third flow channel 11 through the notches 141. After the vacuum adsorption disc 13 is tightly attached to the chassis, the sealing rod 14 is rotated, so that the part of the sealing rod 14, which is not provided with the notch 141, is abutted against the flexible block 15, the sealing of the air guide groove 12 is realized, the negative pressure of the vacuum adsorption disc 13 is completed at the moment, and the installation of the fixing device is realized.
When the fixing device needs to be taken down, the sealing rod 14 is rotated again, so that the two ends of the air guide groove 12 are communicated by the gap 141, and then the air in the third flow channel 11 can be guided between the vacuum adsorption disc 13 and the base plate, thereby completing the detachment of the vacuum adsorption disc 13 from the base plate and facilitating the taking down of the fixing device.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications should not be construed as affecting the performance of the invention and its practical application.
Claims (10)
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.
2. The chassis abnormal sound collector fixing device according to claim 1, wherein: one end of the clamping rod between the two fixed blocks is fixed with a pressing block.
3. The chassis abnormal sound collector fixing device according to claim 2, wherein: the compact heap is the arc.
4. The chassis abnormal sound collector fixing device according to claim 3, wherein: the compact heap is flexible material.
5. The chassis abnormal sound collector fixing device according to any one of claims 1 to 4, wherein: 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.
6. The chassis abnormal sound collector fixing device of claim 5, 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.
7. The chassis abnormal sound collector fixing device of claim 6, 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.
8. The chassis abnormal sound collector fixing device according to claim 7, 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.
9. The chassis abnormal sound collector fixing device according to claim 8, wherein: 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.
10. The chassis abnormal sound collector fixing device of claim 9, wherein: a third flow channel communicated with the vacuum adsorption disc is arranged in the mounting plate, and a sliding plate for sealing the communication position of the third flow channel and the vacuum adsorption disc is connected in the mounting plate in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126561.6A CN112918389B (en) | 2021-01-29 | 2021-01-29 | Fixing device for chassis abnormal sound collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126561.6A CN112918389B (en) | 2021-01-29 | 2021-01-29 | Fixing device for chassis abnormal sound collector |
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| CN112918389A true CN112918389A (en) | 2021-06-08 |
| CN112918389B CN112918389B (en) | 2023-01-24 |
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