A portable multi-point acoustic vibration analysis device for emergency rescue

Abstract

The present invention relates to the field of acoustic wave detection technology, and discloses a portable multi-point acoustic wave vibration analysis device for emergency rescue, comprising an outer arc tube, a handle fixedly connected to the rear end of the outer arc tube, a wireless control processor fixedly connected to the upper end of the outer arc tube, a reduction motor fixedly connected to the middle of the outer arc tube, a negative pressure pump arranged at the front side of the outer arc tube, and an elastic suction cup fixedly connected to the front end of the negative pressure pump; the upper and lower sides of the inner cavity of the outer arc tube are respectively slidably connected to circumferentially distributed inner tooth tubes, and the reduction motor can control the two inner tooth tubes to move backward and extend. The present invention can reduce the volume of the device by storing two inner tooth tubes carrying electric wheels and acoustic wave transducers in the outer arc tube, and at the same time, it is convenient to carry during emergency rescue with the help of the handle to improve the rescue efficiency. During detection, a stable mobile ring body is automatically and quickly formed to surround, and it is convenient to collect, which is convenient for continuous, extensive, comprehensive and accurate detection of multiple bridge pile foundations, thereby improving the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sound wave detection, and in particular to a portable multi-point sound wave vibration analysis device for emergency rescue. Background Art

[0002] The pile foundation of a bridge is the main load-bearing component of the bridge. During the use of the bridge, when the bridge is hit or carries too much weight, cracks will appear inside the pile foundation. The damage to the pile foundation is usually reflected inside the pile foundation. Therefore, before emergency rescue of the bridge, it is necessary to first conduct non-destructive testing on the internal condition of the bridge pile foundation.

[0003] The authorized patent CN111366637A discloses a nondestructive testing device and method for bridge pile foundations, which include a climbing mechanism and a testing mechanism. The climbing mechanism includes a plurality of connecting arcs surrounding the pile foundation, a plurality of supporting legs arranged on the connecting arcs, a driving mechanism for driving the supporting legs to move back and forth toward each other, and a controller for controlling the start and stop of the driving mechanism. The supporting legs are slidably connected to the connecting arcs, and the connecting arcs are detachably connected at the ends. The testing mechanism includes a water storage tank connected to the connecting arcs, an acoustic wave transducer arranged in the water storage tank, and a microcomputer connected to the acoustic wave transducer and processing data. The water storage tank is opened on one side facing the pile foundation and its opening abuts against the side wall of the pile foundation. The acoustic wave transducers are respectively located on both sides of the axis of the pile foundation.

[0004] When the bridge pile foundation nondestructive testing device in the above-mentioned patent is in use, the device as a whole is a spliced ​​structure, and the structures of each part are irregular, and it also needs a water supply, which is not convenient to carry; during testing, it is necessary to use bolts and nuts to connect multiple connecting arcs and detection arcs in steps, and the loading and unloading operations are inconvenient, which can easily slow down the detection efficiency; during testing, only two relative acoustic wave transducers are used for acoustic wave detection, the detection form is single, and it is not extensive and accurate enough, which can easily increase the detection workload; during testing, it is necessary to ensure that the water storage tank is in close contact with the outer wall of the bridge pile foundation, and when the device moves up and down, the water storage tank constantly rubs against the outer wall of the bridge pile foundation, which makes the seal easy to fail and the water used to exhaust the air leaks continuously. Although water is replenished with a water storage cylinder, this method is cumbersome to operate and can ensure that the acoustic wave transducer can maintain a relatively short stable working condition. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that general bridge pile foundation detection devices are inconvenient to carry and load and unload, resulting in low detection efficiency, insufficient and inaccurate detection, and short stable working time of the acoustic wave transducer. The present invention provides a portable multi-point acoustic wave vibration analysis device for emergency rescue.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A portable multi-point acoustic wave vibration analysis device for emergency rescue, comprising an outer arc tube, a handle fixedly connected to the rear end of the outer arc tube, a wireless control processor fixedly connected to the upper end of the outer arc tube, a reduction motor fixedly connected to the middle of the outer arc tube, a negative pressure pump arranged at the front side of the outer arc tube, and an elastic suction cup fixedly connected to the front end of the negative pressure pump;

[0008] The upper and lower sides of the inner cavity of the outer arc tube are respectively slidably connected with circumferentially distributed inner tooth tubes, the reduction motor can control the two inner tooth tubes to move backwards and extend out, the front walls of the two inner tooth tubes are each provided with a notch, two symmetrical guide rods are fixedly connected in the notch, a slide frame is slidably connected between the two guide rods, an electric wheel 1 is arranged on the front side of the inner cavity of the slide frame, a U-shaped frame is slidably connected to the inner wall of the slide frame, the front sides of the U-shaped frame are respectively fixedly connected with acoustic wave transducers, the acoustic wave transducers are electrically connected to the wireless control processor, and a telescopic cylinder is fixedly connected between the U-shaped frame and the rear wall of the inner cavity of the slide frame;

[0009] A locking block is fixedly connected to the left end of the inner tooth tube on the lower side, and an insert block is fixedly connected to the right end of the inner tooth tube on the upper side. The insert block can be docked and locked with the locking block. Guide columns are fixedly connected to the left and right sides of the front end of the outer arc tube respectively, and an L-shaped axle frame is slidably connected to the front side of the guide column. An electric wheel 2 with the same specification as the electric wheel is provided on the L-shaped axle frame.

[0010] Furthermore, a slide tube is fixedly connected to the middle of the front end of the outer arc tube, the negative pressure pump is slidably connected to the front end of the slide tube, key grooves are respectively provided on the upper and lower sides of the slide tube, and key protrusions are respectively provided on the upper and lower sides of the negative pressure pump to match the key grooves;

[0011] The elastic suction cup is elastically connected to the slide cylinder, a rubber cover is fixedly connected to the front end of the elastic suction cup, and both the elastic suction cup and the rubber cover are arc-shaped and have a through hole in the middle corresponding to the suction port of the negative pressure pump.

[0012] Furthermore, tooth grooves are provided on the opposite surfaces of the inner tooth tubes on the upper and lower sides, and transmission gears are rotatably connected to the left and right sides of the middle of the inner cavity of the outer arc tube, the transmission gear on the left side is meshed and connected with the front wall of the tooth groove on the inner tooth tube on the lower side, and the transmission gear on the right side is meshed and connected with the rear wall of the tooth groove on the inner tooth tube on the upper side;

[0013] The reduction motor has two shafts, and a transmission belt is movably connected between the transmission gears on the left and right sides and the corresponding output shafts of the reduction motor. A plurality of guide wheel groups are rotatably connected to the middle of the inner cavity of the outer arc tube, and each guide wheel group includes two guide wheels that are respectively in contact with the inner and outer sides of the corresponding transmission belt.

[0014] Further, the sliding frame is provided with an oblique groove, the outer periphery of the sliding frame is movably connected with an elastic pin frame, the elastic pin frame is elastically connected to the inner wall of the inner tooth tube, the elastic pin frame is slidably connected to the inner wall of the inner tooth tube, the inner wall of the elastic pin frame is fixedly connected with a pin protrusion movably engaged with the oblique groove, and the side wall of the elastic pin frame is fixedly connected with an L-shaped arc rod;

[0015] Limiting grooves are respectively arranged on the upper and lower sides of the front wall of the inner cavity of the outer arc tube, and the ends of the L-shaped arc rod are movably clamped in the limiting grooves.

[0016] Furthermore, a shaft rod is fixedly connected to the front side of the inner cavity of the sliding frame, the electric wheel is driven and installed in the middle part of the shaft rod, elastic friction disks are slidably clamped on the left and right sides of the shaft rod, the elastic friction disk is elastically connected to the shaft rod, wedge grooves are provided on both sides of the inner cavity of the U-shaped frame, the wedge grooves and the outer ends of the elastic friction disk have inclined surfaces abutting against each other, and both sides of the U-shaped frame have through grooves adapted to the shaft rod and the elastic friction disk.

[0017] Furthermore, a buffer pad is arranged at the front end of the acoustic wave transducer, and the buffer pad is made of rubber.

[0018] Furthermore, elastic electromagnetic wedge blocks are slidably inserted on the upper and lower sides of the plug block, and the two elastic electromagnetic wedge blocks attract each other after being energized;

[0019] The locking block is hollow inside, the edge of the port is chamfered and adapted to the plug block, and the upper and lower sides of the inner cavity of the locking block are provided with slots corresponding to the elastic electromagnetic wedge block.

[0020] Furthermore, the front wall of the outer arc tube is slidably connected with two symmetrical elastic slide plates, and the elastic slide plate has a notch on one side close to the middle of the outer arc tube, and a T-shaped hinge rod is movably hinged between the notch and the L-shaped shaft frame;

[0021] The upper and lower sides of the front wall of the outer arc tube are provided with sliding grooves, the rear wall of the elastic slide plate is provided with a passive protrusion that is movably engaged in the sliding groove, and the side of the front wall of the inner tooth tube away from the passive protrusion is provided with an active protrusion that is movably engaged in the sliding groove, and the active protrusion can squeeze the passive protrusion.

[0022] Furthermore, an electromagnetic chuck is fixedly sleeved on the L-shaped shaft frame, and a second elastic friction disk is slidably sleeved on a side of the electromagnetic chuck close to the second electric wheel. The electromagnetic chuck can repel the second elastic friction disk when energized, and the second elastic friction disk is movably sleeved on the L-shaped shaft frame.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention can reduce the size of the device by storing two inner tooth tubes carrying electric wheel 1 and the sound wave transducer in the outer arc tube, and relatively converging the electric wheel 2 and the elastic suction cup on the front wall of the outer arc tube. At the same time, it is convenient to carry during emergency rescue with a handle, thereby improving the rescue efficiency.

[0025] 2. During detection, the present invention utilizes an elastic suction cup to facilitate rapid positioning of the device on the bridge pile foundation, and the control device is subsequently easily deployed. After the two inner tooth tubes are subsequently controlled to extend and cooperate with the locking block and the plug block, the electric wheel one and the electric wheel two are automatically extended to abut against the periphery of the bridge pile foundation. Compared with a general splicing detection device, it can automatically and quickly form a stable mobile ring body to surround it, and it is easy to collect, which is convenient for continuous detection of multiple bridge pile foundations, thereby improving detection efficiency.

[0026] 3. In the present invention, after the two inner tooth tubes move backwards to drive the acoustic wave transducers to extend, the two adjacent acoustic wave transducers on the two inner tooth tubes emit sound waves at different positions respectively, and the acoustic wave transducers on the upper and lower inner tooth tubes emit sound waves at different levels. Different sound waves overlap and interfere with each other to form a vibration field, so as to detect the internal conditions of the bridge pile foundation more widely, comprehensively and accurately, thereby reducing the detection workload.

[0027] 4. When the electric wheel one and the electric wheel two drive the device to move upward or downward, the telescopic cylinder drives the U-shaped frame to make the sound wave transducer in a retracted state, and the sound wave transducer does not contact the outer wall of the bridge pile foundation. When the electric wheel one and the electric wheel two are braked, the telescopic cylinder drives the U-shaped frame to extend the sound wave transducer to abut against the outer wall of the bridge pile foundation for detection, thereby ensuring that the sound wave transducer can be used continuously, safely, reliably and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 It is a three-dimensional exploded structural diagram of the outer arc tube and the inner tooth tube of the present invention;

[0030] Figure 3 It is a partial three-dimensional cutaway view of the outer arc tube and the inner tooth tube of the present invention;

[0031] Figure 4 It is a three-dimensional structural diagram of the inner tooth tube and the locking block of the present invention;

[0032] Figure 5 It is a three-dimensional exploded structural diagram of the sliding frame part of the present invention;

[0033] Figure 6 It is a three-dimensional exploded structural diagram of the outer arc tube and the L-shaped arc rod of the present invention;

[0034] Figure 7It is a three-dimensional exploded structural diagram of the outer arc tube and the elastic slide plate of the present invention;

[0035] Figure 8 It is a three-dimensional exploded structural diagram of two parts of the electric wheel of the present invention;

[0036] Fig. 9 It is a three-dimensional cutaway view of the insert block portion of the present invention.

[0037] Figure numerals: 1, outer arc tube; 11, handle; 12, wireless control processor; 13, slide groove; 14, limit groove; 15, reduction motor; 16, transmission gear; 17, guide wheel group; 18, guide column; 2, slide cylinder; 21, negative pressure pump; 22, elastic suction cup; 23, rubber cover; 3, inner tooth tube; 31, active convex block; 32, guide rod; 4, slide frame; 41, inclined groove; 42, shaft rod; 43, electric Wheel one; 44, elastic friction disc one; 45, U-shaped frame; 46, acoustic transducer; 47, wedge groove; 48, telescopic cylinder; 5, elastic pin frame; 51, pin convex; 52, L-shaped arc rod; 6, locking block; 7, plug block; 71, elastic electromagnetic wedge block; 8, elastic slide plate; 81, passive convex block; 82, T-shaped hinge rod; 83, L-shaped shaft frame; 84, electric wheel two; 85, electromagnetic chuck; 86, elastic friction disc two. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Embodiment 1

[0040] like Figure 1-Figure 9 As shown, a portable multi-point acoustic wave vibration analysis device for emergency rescue comprises an outer arc tube 1, a handle 11 is fixedly connected to the rear end of the outer arc tube 1, a wireless control processor 12 is fixedly connected to the upper end of the outer arc tube 1, a reduction motor 15 is fixedly connected to the middle of the outer arc tube 1, a negative pressure pump 21 is arranged at the front side of the outer arc tube 1, and an elastic suction cup 22 is fixedly connected to the front end of the negative pressure pump 21;

[0041] The upper and lower sides of the inner cavity of the outer arc tube 1 are respectively slidably connected with the inner tooth tubes 3 distributed in a circle, and the reduction motor 15 can control the two inner tooth tubes 3 to move backward and extend. The front walls of the two inner tooth tubes 3 are provided with notches, and two symmetrical guide rods 32 are fixedly connected in the notches. A slide frame 4 is slidably connected between the two guide rods 32. An electric wheel 43 is arranged on the front side of the inner cavity of the slide frame 4. A U-shaped frame 45 is slidably connected to the inner wall of the slide frame 4. The front sides of the U-shaped frame 45 are respectively fixedly connected with acoustic wave transducers 46, and the acoustic wave transducers 46 are electrically connected to the wireless control processor 12. A telescopic cylinder 48 is fixedly connected between the U-shaped frame 45 and the rear wall of the inner cavity of the slide frame 4.

[0042] A locking block 6 is fixedly connected to the left end of the lower inner tooth tube 3, and an insert block 7 is fixedly connected to the right end of the upper inner tooth tube 3. The insert block 7 can be docked and locked with the locking block 6. Guide columns 18 are fixedly connected to the left and right sides of the front end of the outer arc tube 1 respectively, and an L-shaped shaft frame 83 is slidably connected to the front side of the guide column 18. An electric wheel 2 84 of the same specification as the electric wheel 1 43 is arranged on the L-shaped shaft frame 83.

[0043] When in use, by holding the handle 11, the outer arc tube 1 is controlled to horizontally contact the elastic suction cup 22 against the outer wall of the bridge pile foundation to be inspected, and the negative pressure pump 21 is controlled to suck the inside of the elastic suction cup 22 to form a negative pressure, so that the elastic suction cup 22 is automatically adsorbed on the outer wall of the pile foundation. At the same time, the reduction motor 15 is controlled to drive the upper and lower inner tooth tubes 3 to move backwards and extend. During this period, the elastic suction cup 22 is used to fix the device, which can overcome the change of the center of gravity of the device and facilitate easy control. The plug block 7 at the right end of the upper inner tooth tube 3 is automatically locked after docking with the locking block 6 at the left end of the lower inner tooth tube 3, which is more convenient than The general splicing detection device quickly forms a stable mobile ring body to surround the base body, thereby improving the detection efficiency. The two synchronized inner tooth tubes 3 drive the sliding frame 4 to extend respectively, and the sliding frame 4 automatically moves outward from the notch on the front wall of the inner tooth tube 3, driving the electric wheel 1 43 to extend, and the synchronized L-shaped shaft frame 83 automatically moves forward along the guide column 18 to drive the electric wheel 2 84 to extend. When the two inner tooth tubes 3 are fully extended, the two electric wheels 1 43 and the two electric wheels 2 84 fully abut against the outer wall of the pile foundation, which can automatically stabilize the device body, and the negative pressure pump 21 automatically stops, releasing the pressure relief valve 21. The elastic suction cup 22 is in the adsorption state. Subsequently, the wireless control processor 12 is controlled synchronously with the off-site wireless control device to control each electric wheel 1 43 and the electric wheel 2 84. When the driving device moves upward or downward for detection, the telescopic cylinder 48 drives the U-shaped frame 45 to make the sound wave transducer 46 in a retracted state, and the sound wave transducer 46 does not contact the outer wall of the bridge pile foundation. When the electric wheel 1 43 and the electric wheel 2 84 are braked, the telescopic cylinder 48 drives the U-shaped frame 45 to extend the sound wave transducer 46 to abut against the outer wall of the bridge pile foundation for detection. The acoustic wave transducer 46 automatically emits sound waves to the pile foundation. The two adjacent acoustic wave transducers 46 on the two inner tooth tubes 3 emit sound waves at different positions respectively, and the acoustic wave transducers 46 on the upper and lower inner tooth tubes 3 emit sound waves from different levels. Different sound waves overlap and interfere with each other to form a vibration field, so as to detect the internal conditions of the bridge pile foundation more widely, comprehensively and accurately, reducing the detection workload. When the acoustic wave transducer 46 receives the sound waves reflected from the pile foundation, it can automatically feed back the sound wave information to the wireless control processor 12 for analysis and processing.

[0044] Embodiment 2

[0045] like Figure 2 As shown, a slide tube 2 is fixedly connected to the middle of the front end of the outer arc tube 1, and a negative pressure pump 21 is slidably connected to the front end of the slide tube 2. The slide tube 2 has key grooves on both sides, and the negative pressure pump 21 has key protrusions on both sides that match the key grooves.

[0046] The elastic suction cup 22 is elastically connected to the slide 2, and a rubber cover 23 is fixedly connected to the front end of the elastic suction cup 22. Both the elastic suction cup 22 and the rubber cover 23 are arc-shaped and have a through hole in the middle corresponding to the suction port of the negative pressure pump 21.

[0047] When controlling the outer arc tube 1 to drive the slide cylinder 2 so that the negative pressure pump 21 draws suction from the elastic suction cup 22 abutting against the outer wall of the bridge pile foundation to be inspected, the arc-shaped rubber cover 23 seals the gap between the elastic suction cup 22 and the outer wall of the pile foundation, and negative pressure suction is safe and reliable. Subsequently, when the electric wheel 1 43 and the two electric wheels 2 84 are extended to fully abut against the outer wall of the pile foundation to stabilize the device body, the outer arc tube 1 drives the slide cylinder 2 to relatively move away from the pile foundation, and the elastic suction cup 22 is in a stretched state. Subsequently, when the negative pressure pump 21 stops, the elastic suction cup 22 automatically detaches from the outer wall of the pile foundation and resets toward one side of the slide cylinder 2, thereby avoiding wear between the rubber cover 23 and the outer wall of the pile foundation when the subsequent device moves up and down for inspection.

[0048] Embodiment 3 provides a driving mechanism for an inner tooth tube 3:

[0049] like Figure 2 As shown, tooth grooves are provided on the opposite surfaces of the upper and lower inner tooth tubes 3, and transmission gears 16 are rotatably connected to the left and right sides of the middle of the inner cavity of the outer arc tube 1, the left transmission gear 16 is meshed and connected with the front wall of the tooth groove on the lower inner tooth tube 3, and the right transmission gear 16 is meshed and connected with the rear wall of the tooth groove on the upper inner tooth tube 3;

[0050] The reduction motor 15 has two shafts, and a transmission belt is movably connected between the transmission gears 16 on the left and right sides and the corresponding output shafts of the reduction motor 15. A plurality of guide wheel groups 17 are rotatably connected to the middle of the inner cavity of the outer arc tube 1, and each guide wheel group 17 includes two guide wheels that are respectively in contact with the inner and outer sides of the corresponding transmission belt.

[0051] When in use, the reduction motor 15 rotates forward to drive the transmission belts on the upper and lower sides to operate, and the transmission gears 16 on the left and right sides respectively drive the inner tooth tubes 3 on the lower and upper sides to move backwards and extend along the inner wall of the outer arc tube 1. During this period, the two guide wheels in the guide wheel group 17 respectively guide the transmission belts inwards and outwards to prevent mutual squeezing and wear.

[0052] Embodiment 4 provides a driving mechanism of an electric wheel 43:

[0053] like Figure 5-Figure 6 As shown, the sliding frame 4 is provided with an inclined groove 41, and an elastic pin frame 5 is movably connected to the periphery of the sliding frame 4. The elastic pin frame 5 is elastically connected to the inner wall of the inner tooth tube 3, and the elastic pin frame 5 is slidably connected to the inner wall of the inner tooth tube 3. The inner wall of the elastic pin frame 5 is fixedly connected with a pin protrusion 51 that is movably engaged with the inclined groove 41, and the side wall of the elastic pin frame 5 is fixedly connected with an L-shaped arc rod 52;

[0054] Limiting grooves 14 are respectively provided on the upper and lower sides of the front wall of the inner cavity of the outer arc tube 1 , and the ends of the L-shaped arc rod 52 are movably engaged in the limiting grooves 14 .

[0055] When the two inner tooth tubes 3 move in opposite directions, the ends of the L-shaped arc rods 52 in the two inner tooth tubes 3 also move along the limiting groove 14. When the inner tooth tube 3 is about to extend to the maximum distance, the ends of the L-shaped arc rods 52 just move to the end of the limiting groove 14, and the ends of the L-shaped arc rods 52 are blocked by the limiting groove 14 and cannot continue to move with the inner tooth tube 3, thereby driving the elastic pin frame 5 to be stationary, and the inner tooth tube 3 drives the sliding frame 4 to move outward relative to the elastic pin frame 5, the elastic pin frame 5 is continuously compressed, and the elastic pin The pin protrusion 51 on the inner wall of the frame 5 passively moves the inclined groove 41, and the sliding frame 4 automatically drives the electric wheel 43 to extend, and when the inner tooth tube 3 is fully extended, the two electric wheels 43 are fully extended, avoiding the electric wheel 43 from scratching the outer wall of the pile foundation when the inner tooth tube 3 moves outward, resulting in an obstruction in the extension of the inner tooth tube 3. Later, when the inner tooth tube 3 is reset, the compressed elastic pin frame 5 automatically drives the sliding frame 4 to make the electric wheel 43 contract and reset, and the release and retraction of the electric wheel 43 is fast and convenient.

[0056] Embodiment 5 provides a braking mechanism of an electric wheel 43:

[0057] like Figure 5 As shown, a shaft rod 42 is fixedly connected to the front side of the inner cavity of the sliding frame 4, an electric wheel 43 is driven and installed in the middle of the shaft rod 42, elastic friction discs 44 are slidably clamped on both sides of the left and right sides of the shaft rod 42, and the elastic friction disc 44 is elastically connected to the shaft rod 42. Wedge grooves 47 are provided on both sides of the inner cavity of the U-shaped frame 45, and the wedge grooves 47 and the outer ends of the elastic friction disc 44 have inclined surfaces abutting against each other, and both sides of the U-shaped frame 45 have through grooves adapted to the shaft rod 42 and the elastic friction disc 44.

[0058] The telescopic cylinder 48 is controlled to drive the U-shaped frame 45 to move forward, and the wedge groove 47 automatically pushes the elastic friction disk 44 to abut against the electric wheel 43, thereby facilitating reliable braking of the electric wheel 43.

[0059] Furthermore, a buffer pad is provided at the front end of the sound wave transducer 46, and the buffer pad is made of rubber.

[0060] When the U-shaped frame 45 moves forward, the sound wave transducer 46 also moves forward, so that when the electric wheel 43 is braked, the sound wave transducer 46 is controlled to move forward and abut against the outer wall of the bridge pile foundation for detection. Since the telescopic cylinder 48 is used to drive the U-shaped frame 45 to brake the electric wheel 43 quickly, the rubber buffer pad at the front end of the sound wave transducer 46 can prevent it from being damaged by impact and fully fill the gap between the sound wave transducer 46 and the outer wall of the pile foundation to avoid impedance interference of air on the sound waves and ensure stable detection.

[0061] Embodiment 6 provides a locking mechanism for the inner tooth tube 3:

[0062] like Figure 1 and Fig. 9 As shown, elastic electromagnetic wedge blocks 71 are slidably inserted into the upper and lower sides of the plug block 7, and the two elastic electromagnetic wedge blocks 71 attract each other after being energized;

[0063] The locking block 6 is hollow inside, has chamfered edges at its ports and is adapted to the inserting block 7 , and slots corresponding to the elastic electromagnetic wedge 71 are provided on both upper and lower sides of the inner cavity of the locking block 6 .

[0064] When the two inner tooth tubes 3 are controlled to move the maximum distance in the opposite directions, the plug block 7 is just inserted into the locking block 6, and the elastic electromagnetic wedge blocks 71 on the upper and lower sides of the plug block 7 are respectively stuck in the card grooves in the inner cavity of the locking block 6. The plug block 7 is automatically locked after docking with the locking block 6, ensuring that the formed moving ring body surrounds the base body stably and firmly, and the chamfered design of the edge of the locking block 6 port can ensure that when the two inner tooth tubes 3 are slightly misaligned due to gravity after being extended, the plug block 7 and the locking block 6 can still be stably docked. Subsequently, the two elastic electromagnetic wedge blocks 71 are energized and contracted to facilitate the resetting of the device.

[0065] Embodiment 7 provides a driving mechanism of the electric wheel 2 84:

[0066] like Figure 7-Figure 8 As shown, two symmetrical elastic slide plates 8 are slidably clamped on the front wall of the outer arc tube 1. The elastic slide plate 8 has a notch on one side close to the middle of the outer arc tube 1. A T-shaped hinge rod 82 is movably hinged between the notch and the L-shaped shaft frame 83.

[0067] Slide grooves 13 are provided on the upper and lower sides of the front wall of the outer arc tube 1, and a passive protrusion 81 that is movably engaged in the slide groove 13 is provided on the rear wall of the elastic slide plate 8. An active protrusion 31 that is movably engaged in the slide groove 13 is provided on the side of the front wall of the inner tooth tube 3 away from the passive protrusion 81, and the active protrusion 31 can squeeze the passive protrusion 81.

[0068] When the two inner tooth tubes 3 move back to back and are about to extend the maximum distance, the inner tooth tube 3 drives the active protrusion 31 to squeeze the passive protrusion 81, and the elastic slide plate 8 is automatically driven to pull the T-shaped hinge rod 82 to push the L-shaped shaft frame 83 forward, thereby driving the electric wheel 2 84 to extend.

[0069] Embodiment 8 provides a braking mechanism of an electric wheel 2 84:

[0070] like Figure 8 As shown, an electromagnetic chuck 85 is fixedly sleeved on the L-shaped shaft frame 83, and a second elastic friction disk 86 is slidably clamped on the side of the electromagnetic chuck 85 close to the second electric wheel 84. When the electromagnetic chuck 85 is energized, it can repel the second elastic friction disk 86, and the second elastic friction disk 86 is movably sleeved on the L-shaped shaft frame 83.

[0071] When the electric wheel 1 43 stops running and brakes, the electric wheel 2 84 also stops running. At the same time, the L-shaped shaft frame 83 is automatically energized to repel the elastic friction disk 2 86 and abut against the electric wheel 2 84, thereby reliably braking the electric wheel 2 84 and ensuring that the formed moving ring body surrounding the base can stably stop for acoustic wave detection and analysis.

[0072] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable multi-point acoustic wave vibration analysis device for emergency rescue, comprising an outer arc tube (1), characterized in that: The rear end of the outer arc tube (1) is fixedly connected to a handle (11), the upper end of the outer arc tube (1) is fixedly connected to a wireless control processor (12), the middle part of the outer arc tube (1) is fixedly connected to a reduction motor (15), the front side of the outer arc tube (1) is provided with a negative pressure pump (21), and the front end of the negative pressure pump (21) is fixedly connected to an elastic suction cup (22); The upper and lower sides of the inner cavity of the outer arc tube (1) are respectively slidably connected with inner tooth tubes (3) distributed in a circle, the reduction motor (15) can control the two inner tooth tubes (3) to move backward and extend, the front walls of the two inner tooth tubes (3) are each provided with a notch, two symmetrical guide rods (32) are fixedly connected in the notch, a slide frame (4) is slidably engaged between the two guide rods (32), an electric wheel (43) is arranged at the front side of the inner cavity of the slide frame (4), a U-shaped frame (45) is slidably connected to the inner wall of the slide frame (4), both sides of the front end of the U-shaped frame (45) are respectively fixedly connected with acoustic wave transducers (46), the acoustic wave transducers (46) are electrically connected to the wireless control processor (12), and a telescopic cylinder (48) is fixedly connected between the U-shaped frame (45) and the rear wall of the inner cavity of the slide frame (4); A locking block (6) is fixedly connected to the left end of the inner tooth tube (3) on the lower side, and an insert block (7) is fixedly connected to the right end of the inner tooth tube (3) on the upper side. The insert block (7) can be docked and locked with the locking block (6). Guide columns (18) are fixedly connected to the left and right sides of the front end of the outer arc tube (1), and an L-shaped shaft frame (83) is slidably engaged with the front side of the guide column (18). An electric wheel 2 (84) of the same specification as the electric wheel 1 (43) is arranged on the L-shaped shaft frame (83).

2. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 1, characterized in that: A slide cylinder (2) is fixedly connected to the middle of the front end of the outer arc tube (1), the negative pressure pump (21) is slidably clamped on the front end of the slide cylinder (2), the slide cylinder (2) is provided with key slots on the upper and lower sides respectively, and the negative pressure pump (21) is provided with key protrusions adapted to the key slots on the upper and lower sides respectively; The elastic suction cup (22) is elastically connected to the slide cylinder (2), and a rubber cover (23) is fixedly connected to the front end of the elastic suction cup (22). Both the elastic suction cup (22) and the rubber cover (23) are arc-shaped and have a through hole in the middle corresponding to the air suction port of the negative pressure pump (21).

3. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 2, characterized in that: The opposing surfaces of the inner tooth tube (3) on the upper and lower sides are provided with tooth grooves, and the left and right sides of the middle of the inner cavity of the outer arc tube (1) are rotatably connected with transmission gears (16), the left transmission gear (16) is meshedly connected with the front wall of the tooth groove on the lower inner tooth tube (3), and the right transmission gear (16) is meshedly connected with the rear wall of the tooth groove on the upper inner tooth tube (3); The reduction motor (15) has two shafts, and a transmission belt is movably sleeved between the transmission gears (16) on the left and right sides and the corresponding output shafts of the reduction motor (15). A plurality of guide wheel groups (17) are rotatably connected to the middle of the inner cavity of the outer arc tube (1), and each guide wheel group (17) includes two guide wheels that are in contact with the inner and outer sides of the corresponding transmission belt respectively.

4. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 3, characterized in that: The sliding frame (4) is provided with an inclined groove (41), the outer periphery of the sliding frame (4) is movably connected with an elastic pin frame (5), the elastic pin frame (5) is elastically connected to the inner wall of the inner tooth tube (3), the elastic pin frame (5) is slidably connected to the inner wall of the inner tooth tube (3), the inner wall of the elastic pin frame (5) is fixedly connected with a pin protrusion (51) movably engaged with the inclined groove (41), and the side wall of the elastic pin frame (5) is fixedly connected with an L-shaped arc rod (52); Limiting grooves (14) are respectively provided on the upper and lower sides of the front wall of the inner cavity of the outer arc tube (1), and the ends of the L-shaped arc rod (52) are movably engaged in the limiting grooves (14).

5. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 4, characterized in that: A shaft (42) is fixedly connected to the front side of the inner cavity of the sliding frame (4), the electric wheel (43) is driven and installed in the middle of the shaft (42), and elastic friction discs (44) are slidably engaged on both sides of the shaft (42), and the elastic friction disc (44) is elastically connected to the shaft (42). Wedge grooves (47) are provided on both sides of the inner cavity of the U-shaped frame (45), and the wedge grooves (47) and the outer ends of the elastic friction disc (44) have inclined surfaces abutting against each other, and both sides of the U-shaped frame (45) have through grooves adapted to the shaft (42) and the elastic friction disc (44).

6. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 5, characterized in that: A buffer pad is provided at the front end of the sound wave transducer (46), and the buffer pad is made of rubber.

7. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 6, characterized in that: Elastic electromagnetic wedge blocks (71) are respectively slidably inserted into the upper and lower sides of the plug block (7), and the two elastic electromagnetic wedge blocks (71) attract each other when energized; The locking block (6) is hollow inside, has chamfered edges at its ports and is adapted to fit the insert block (7). The locking block (6) has slots corresponding to the elastic electromagnetic wedge block (71) on both upper and lower sides of its inner cavity.

8. The portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 7, characterized in that: The front wall of the outer arc tube (1) is slidably connected to two symmetrical elastic slide plates (8), one side of the elastic slide plate (8) close to the middle of the outer arc tube (1) has a notch, and a T-shaped hinge rod (82) is movably hinged between the notch and the L-shaped shaft frame (83); The front wall of the outer arc tube (1) is provided with a slide groove (13) on both upper and lower sides; the rear wall of the elastic slide plate (8) is provided with a passive protrusion (81) movably engaged in the slide groove (13); the front wall of the inner tooth tube (3) is provided with an active protrusion (31) movably engaged in the slide groove (13) on a side away from the passive protrusion (81); the active protrusion (31) is capable of pressing the passive protrusion (81).

9. A portable multi-point acoustic wave vibration analysis device for emergency rescue according to claim 8, characterized in that: An electromagnetic chuck (85) is fixedly sleeved on the L-shaped shaft frame (83); a second elastic friction disk (86) is slidably sleeved on a side of the electromagnetic chuck (85) close to the second electric wheel (84); the electromagnetic chuck (85) is capable of repelling the second elastic friction disk (86) when energized; and the second elastic friction disk (86) is movably sleeved on the L-shaped shaft frame (83).

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