CN112083003A

CN112083003A - Portable bridge crack monitoring facilities of high stability

Info

Publication number: CN112083003A
Application number: CN202010923421.7A
Authority: CN
Inventors: 姚惠红
Original assignee: Hangzhou Ebara Enterprise Management Co ltd
Current assignee: Hangzhou Ebara Enterprise Management Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-12-15

Abstract

The invention discloses a high-stability portable bridge crack monitoring device which comprises a main body, a clamping device, a longitudinal telescopic rod, a transverse telescopic rod, an adsorption device, a photographic disc and an anti-shake device, wherein the main body is provided with a clamping device; the adsorption device comprises an air pressure chamber, a crawler belt, a rotary rod, a connecting pipe, a rotary mechanism and an adsorption disc; the equipment is firstly fixed on the guardrail or the side edge of the bridge through the clamping device, so that the equipment is prevented from shaking during working and the camera shooting effect is prevented from being influenced; then the adsorption device and the photographic plate extend to the bottom of the bridge for operation through the longitudinal telescopic rod and the transverse telescopic rod, so that the applicability of the equipment is improved; at the moment, the photographic disc is stabilized at the bottom of the bridge under the action of the adsorption disc, so that shaking is prevented; the camera can be kept stable through the anti-shake mechanism, and the phenomenon that data acquisition is influenced due to the fact that shooting is unstable when the influence of external factors is caused is prevented; the stability of equipment is improved, and further data acquisition is more accurate.

Description

Portable bridge crack monitoring facilities of high stability

Technical Field

The invention belongs to the technical field of bridge monitoring, and particularly relates to a portable bridge crack monitoring device for improving data acquisition accuracy.

Background

The bridge is used as an important component of the traffic aorta and plays an important role in national economic construction and social development; the bridge is frequently diseased, wherein the occurrence and development of cracks on the bottom surface of the bridge are one of important characteristics of health problems of the bridge; at present, the main detection method for the cracks on the bottom surface of the bridge is to manually observe the cracks under the bridge by using a high-power telescope, and the method has poor reliability and is easy to have large errors; or the detection vehicle is adopted to convey people to the bottom of the bridge for manual shooting, sampling and calculation, but the method is only suitable for large bridges; the applicability is low, and the volume of the detection vehicle is too large, so that the traffic is influenced.

Disclosure of Invention

The invention provides high-stability portable bridge crack monitoring equipment in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a portable bridge crack monitoring device with high stability comprises a main body, a clamping device arranged on the main body, a longitudinal telescopic rod arranged in the main body, a transverse telescopic rod arranged in the longitudinal telescopic rod, an adsorption device arranged on the transverse telescopic rod, a photographic disc arranged at the tail end of the transverse telescopic rod and an anti-shake device arranged on the photographic disc; the adsorption device comprises an air pressure chamber arranged on the transverse telescopic rod, a crawler arranged at the upper end of the air pressure chamber, rotary rods arranged in two side walls of the air pressure chamber, a connecting pipe arranged on the rotary rods, a rotary mechanism arranged on the rotary rods and an adsorption disc arranged on the connecting pipe; the rotary rods are rotatably embedded at two sides of the air pressure chamber; the connecting pipe is made of spring steel; the connecting pipe is arc-shaped in longitudinal section, is a hollow pipe and is connected with the air pressure chamber.

Before the equipment is started, a camera is placed in the anti-shaking device; then, the main body is firmly fixed on the side edge of the bridge deck or a guardrail by adopting a clamping device; starting the longitudinal telescopic rod and the transverse telescopic rod to send the camera to the bottom surface of the bridge; at the moment, under the action of the connecting pipe, the adsorption disc is tightly attached to the bottom surface of the bridge; at the moment, the equipment can stabilize the photographic plate at the bottom of the bridge under the simultaneous action of the clamping device and the adsorption plate; then starting the anti-shake device to enable the camera to be stable all the time, and at the moment, starting shooting and collecting the bottom of the bridge by the camera; at the moment, the track is started to drive the transverse telescopic rod to move slowly; then the rotating mechanism starts to reset the adsorption disc, and the bottom surface of the bridge is adsorbed again; shooting and collecting different places of the bottom surface of the bridge repeatedly; the main body is stabilized through the arrangement of the clamping device, the main body is prevented from shaking during working to influence the shooting definition, and the accuracy is improved; the arrangement of the longitudinal telescopic rods and the transverse telescopic rods realizes that the camera is conveyed to any point of the bottom surface of the bridge, so that the bridge floor with different sizes and shapes can be suitable, and the applicability of the equipment is improved; the first longitudinal telescopic rod is stabilized through the arrangement of the adsorption device, and the camera is prevented from shaking due to the influence of wind power during operation; the stability of shooting is improved, and the collected photos are clearer; the camera can always keep still when the transverse telescopic rod moves due to the arrangement of the anti-shake device; the acquisition definition is prevented from being reduced under the influence of external factors such as vibration, wind and the like; the arrangement of the air pressure chamber realizes that the adsorption disc is driven to adsorb the bottom of the bridge by utilizing the principle of air pressure, so that the stability is improved; the rotary rollers are arranged to realize that the adsorption disc can rotate, so that the transverse telescopic rod can stably move while the adsorption disc adsorbs the bottom of the bridge; the moving stability of the transverse telescopic rod is improved; the adsorption disc can be abutted against the bottom of the bridge through the arrangement of the connecting pipe, so that the adsorption disc can adapt to bridge floors in different shapes on one hand; on the other hand, the contact between the adsorption disc and the bottom surface of the bridge can be ensured, and the stability is improved.

The adsorption disc comprises a base arranged on the connecting pipe, a fixed ring arranged on the base, a sucker arranged on the fixed ring, a first spring arranged on the sucker, a moving plate arranged on the fixed ring and a driving assembly arranged on the moving plate; the fixing ring is arranged on the base, and the center of the fixing ring is connected with the connecting pipe; the sucking disc can move up and down and is embedded with the base and the fixing ring; the first spring is connected with the sucker and the inner wall of the base; the movable plate can be embedded on the fixed ring in a vertically moving mode.

When the transverse telescopic rod extends into the bottom surface of the bridge, the air pressure chamber is started; at the moment, under the influence of air pressure, the moving plate is driven to move downwards; at the moment, under the action of the driving assembly, the sucker starts to move upwards; the suction cup is driven to be tightly attached to the bottom surface of the bridge, and the suction cup generates suction force under the influence of air pressure to suck the bottom of the bridge; the suction force is generated under the action of air pressure through the arrangement of the sucking disc, and the sucking disc is stable with the bridge; the arrangement of the first spring realizes that the sucker is far away from the bottom surface of the bridge in a non-working state, and the abrasion caused by the influence of the movement of the transverse telescopic rod is prevented; the suction disc is driven by the pneumatic driving assembly according to the change of air pressure through the arrangement of the moving plate, so that the linkage of the equipment is improved.

The driving assembly comprises a one-way valve seat arranged on the moving plate, a moving ball arranged on the one-way valve seat, an inflation cavity arranged on the fixing ring, a piston ring arranged on the moving plate and an air outlet hole arranged on the fixing ring; the moving ball can be embedded on the one-way valve seat in a universal moving way; the inflation cavity is arranged between the fixing rings; the piston ring can be embedded in the inflation cavity in an up-and-down moving manner; the air outlet is communicated with the air inflation cavity and the bottom of the sucker.

When the base is not pumped by the air pressure chamber, the movable ball is abutted against the bottom of the bridge; starting the air pressure chamber to perform air extraction on the interior of the base; at the moment, the one-way valve seat starts to act to drive the moving plate to move downwards; when moving, the piston ring moves downwards; at the moment, the volume of the air inflation cavity is reduced, and the sucker is driven to move upwards by further air pressure; the arrangement of the moving ball realizes that the adsorption disc can roll and move close to the bottom surface of the bridge, so that the friction force is reduced, and the adsorption disc can move stably; the arrangement of the inflation cavity realizes that the sucker is driven to move according to the volume change of the inflation cavity.

The rotating mechanism comprises a torsion spring arranged at the lower end of the rotating rod, a speed reduction gear arranged at the upper end of the rotating rod, a speed reduction roller arranged on the speed reduction gear, and a speed reduction gear ring arranged in the air pressure chamber; the torsion spring is connected with the rotary rod and the outer wall of the air pressure chamber; the speed reduction roller is rotatably embedded on the speed reduction teeth; the speed reducing roller can be abutted against the speed reducing gear ring.

When the suction cup sucks the bottom surface of the bridge, the crawler belt is driven to drive the transverse telescopic rod to move; at the moment, the rotary rod starts to rotate, the torsion spring starts to accumulate force, and when adsorption is needed again; the sucker resets under the action of the torsion spring; at the moment, the deceleration roller and the deceleration teeth are continuously abutted, so that the rotating stick is slowly rotated and reset; the sucker can be reset through the arrangement of the torsion spring, so that the sucker can stably rotate and move to a corresponding position; the arrangement of the speed reduction teeth and the speed reduction roller enables the sucker to rotate slowly when rotating; on one hand, the unstable acquisition caused by vibration generated due to too fast reset is prevented; on the other hand, prevent the component from being damaged due to too fast rotation.

The anti-shake device comprises a fixed frame arranged on the photographic disc, a rotating frame arranged on the fixed frame, a vent hole arranged on the rotating frame, a universal ball arranged on the rotating frame, and a first rotating ring arranged in the rotating frame. The second rotating ring is arranged on the first rotating ring, the accommodating ball is arranged on the second rotating ring, the balancing weight is arranged on the accommodating ball, and the anti-shaking assembly is arranged on the photographic plate; the rotating frame can be embedded on the fixed frame in a universal rotating manner; the universal ball can be embedded on the photographic disc in a universal rotating manner; the first rotating ring is rotatably embedded in the rotating frame, and the second rotating ring is rotatably embedded in the first rotating ring; the accommodating ball is fixedly arranged on the second rotating ring.

When the photographic disc moves to the bottom surface of the bridge, the photographic disc is driven by wind power or the vibration of the equipment; the universal ball begins to shake, and the containing ball is kept still under the action of the gravity of the balancing weight; on the other hand, the containing ball is always kept at the same position under the principle action of the gyroscope; on one hand, the rotary frame can always move on the photographic disc through the arrangement of the fixed frame, so that the safety and stability of the equipment are improved; on the other hand, the shaking amplitude of the equipment is reduced by the principle of air flow; due to the arrangement of the vent holes, wind energy smoothly passes through the equipment, and the shaking caused by the influence of wind power is reduced; the storage ball is always kept still by adopting the gyroscope principle under the action of the universal ball; the arrangement of the balancing weight realizes that the axis of the containing ball can be always vertical to the surface of the photographic disc; the camera can be kept stable by the arrangement of the mechanism, the camera shooting stability is improved, and the collection reliability is further improved.

The anti-shaking assembly comprises a moving block arranged on the photographic disc, a magnetic wheel arranged on the moving block and a second spring arranged on the moving block; the moving block can move left and right and is embedded in the photographic disc; the magnetic wheel is rotatably embedded in the moving block and can abut against the transverse telescopic rod; the second spring is connected with the shooting disc and the moving block.

When the photographic disc shakes under the influence of wind power, the moving block starts to move transversely under the action of the second spring; at the moment, the magnetic wheel is pressed against the end surface of the transverse telescopic rod to roll; the shaking is buffered through the action of the second spring, so that the shaking amplitude is reduced; on one hand, the moving amplitude of the moving block is reduced through the magnetic effect and the shaking amplitude of the moving block to the photographic disc is reduced through the arrangement of the magnetic wheel; on the other hand, the shaking generated by the movement of the moving block can be reduced, and the stability is improved.

The clamping device comprises a clamping block arranged on the main body, a first groove arranged on the clamping block, a telescopic plate arranged on the main body, a connecting ball arranged on the telescopic plate, a third spring arranged on the connecting ball, a second groove arranged on the telescopic plate and a pneumatic assembly arranged on the clamping block; the clamping block is movably embedded on the main body; the cross section of the first open groove is wavy; the telescopic plates are movably embedded on the main body; the third spring is connected with the telescopic plate and the main body; the cross section of the second open groove is wavy; the connection is made to be universally rotatable on the body.

Before the equipment is used, the clamping block is abutted against the bridge guardrail; the air pressure component is driven by the air compressor; the clamping plate starts to move, so that the clamping block and the main body are contracted to clamp the guardrail; the friction force between the clamping block and the main body is improved through the arrangement of the first open groove and the second open groove, so that the clamping stability is improved; the clamping plate can be used for the guardrails with different shapes by arranging the connecting balls, so that the applicability of the equipment is improved; the clamping block is pressed after clamping is finished under the action of the third spring, so that the clamping force is increased; on the other hand, the looseness is prevented, and the stability is improved.

The starting assembly comprises a moving channel arranged on the main body, a piston channel arranged on the moving channel, a piston block arranged on the clamping block, an air pipe arranged on the piston block and positioning pieces arranged on two sides of the piston block; the length of the piston channel is one third of the length of the moving channel; the piston block is movably embedded in the piston channel; one end of the air pipe is communicated with the piston channel, and the other end of the air pipe is communicated with the positioning piece.

Before starting the equipment, inflating the piston channel through a gas compressor; firstly, the gas is led to the gas pipe to drive the positioning piece to start, so that the clamping block is stabilized in the moving channel; the clamping block is driven to move by adopting the air pressure principle through the arrangement of the component, and the clamping block is locked at the same time; the stability of the clamping block is improved.

The positioning piece comprises ratchet bars arranged on two sides of the moving channel, driving frames arranged on two sides of the piston block, a driving spring arranged on the driving frames, and a ratchet block arranged in the driving frames; the driving frame is movably embedded on the piston block; the driving spring is connected with the driving frame and the piston block; the driving frame is butted with the air pipe; the ratchet block is movably embedded in the driving frame and can be meshed with the ratchet bar.

When the air pipe is filled with air, the ratchet block is driven to move firstly; then the ratchet block is engaged with the ratchet bar; when the clamping block moves, the ratchet block is abutted against the ratchet bar, so that the clamping block can be stably fixed in the moving channel; the ratchet block can be meshed with and separated from the ratchet bar under the influence of air pressure through the arrangement of the driving spring; the arrangement of the ratchet block and the ratchet bar enables the clamping block to be always kept stable in the moving channel, the stability of the clamping block is improved, and the shaking of the equipment is prevented.

In conclusion, the invention has the following advantages: the equipment is characterized in that firstly, the clamping blocks are driven to move by using air pressure, and the equipment is fixed on the side edge of the bridge; then, the clamping force is increased through the action of the ratchet block and the ratchet bar, the stability of the equipment during operation is improved, and the detection reliability can be further improved; then when the photo is collected, the shooting disc can be stably fixed below the bottom surface of the bridge through the adsorption disc; at the moment, the camera can always keep a position still through the anti-shake device, so that the collection stability is improved, and the reliability of data is further improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a cross-sectional view taken along C-C of fig. 3 of the present invention.

Fig. 5 is a cross-sectional view along a-a of fig. 2 of the present invention.

FIG. 6 is a partial view taken at A of FIG. 4 in accordance with the present invention.

Fig. 7 is a partial view of the invention at C of fig. 4.

Fig. 8 is a partial view of the invention at B in fig. 4.

Fig. 9 is a partial view of the invention at D in fig. 3.

Fig. 10 is a partial cross-sectional view at F of fig. 3 of the present invention.

Fig. 11 is a partial view of the invention at E of fig. 5.

Fig. 12 is a cross-sectional view taken along B-B of fig. 2 of the present invention.

FIG. 13 is a partial view taken at H of FIG. 5 in accordance with the present invention.

Fig. 14 is a schematic structural diagram of the clamping block of the present invention.

Fig. 15 is a partial view of the invention at G in fig. 12.

Detailed Description

As shown in fig. 1-15, a portable bridge crack monitoring device with high stability comprises a main body 1, a clamping device 2, a longitudinal telescopic rod 7, a transverse telescopic rod 3, an adsorption device 4, and a photographic disc 5 anti-shake device 6; the adsorption device 4 comprises an air pressure chamber 51, a crawler belt 52, a rotary rod 53, a connecting pipe 54, a rotary mechanism 55 and an adsorption disc 56; the clamping device 2 is arranged on the main body 1; the longitudinal telescopic rod 7 is arranged in the main body 1, and the longitudinal telescopic rod 7 is directly purchased from the market; the transverse telescopic rod 3 is arranged in the longitudinal telescopic rod 7; the adsorption device 3 is arranged on the transverse telescopic rod 3; the photographic disc 5 is arranged at the tail end of the transverse telescopic rod 3; the anti-shake device 6 is arranged on the photographic disc 5; the air pressure chamber 51 is arranged on the transverse telescopic rod 3; the crawler belt 52 is arranged on the upper end surface of the air pressure chamber 51; the rotary rods 53 can be rotatably embedded at two sides of the air pressure chamber 51; the connecting pipe 54 is made of spring steel; the connecting pipe 54 has a circular arc-shaped longitudinal section, and the connecting pipe 54 is a hollow pipe connected with the air pressure chamber 51; the rotating mechanism 55 is arranged on the rotating stick 53; the adsorption disk 56 is provided on the connection pipe 54.

As shown in fig. 3-4 and 6, the suction plate 56 includes a base 561, a fixing ring 562, a suction plate 563, a first spring 564, a moving plate 565, and a driving assembly 10; the base 561 is arranged on the connection pipe 54; the fixing ring 562 is arranged on the base, and the center of the fixing ring 562 is connected with the connecting pipe 54; the sucking disc 563 can move up and down and is embedded with the base 561 and the fixing ring 562; the first spring 564 connects the suction cup 563 with the inner wall of the base 561; the moving plate 565 can be embedded on the fixed ring 562 to move up and down; the driving assembly 10 is disposed on the moving plate 565.

As shown in fig. 6-7, the driving assembly 10 includes a one-way valve seat 101, a moving ball 102, a gas-filled cavity 103, a piston ring 104, and a gas outlet 105; the one-way valve seat 101 is arranged on the moving plate 565, and the one-way valve seat 101 is directly purchased from the market; the moving ball 102 can be embedded on the one-way valve seat 101 in a universal moving way; the inflation cavity 103 is arranged between the fixing rings 562; the piston ring 104 can be embedded in the inflation cavity 103 in an up-and-down moving manner; the air outlet 105 is communicated with the bottom of the air inflation cavity 103 and the suction cup 563.

As shown in fig. 8 to 9, the rotating mechanism 55 includes a torsion spring 551, a reduction tooth 552, a reduction roller 553, a reduction tooth ring 554; the torsion spring 551 is connected with the rotary rod 53 and the outer wall of the air chamber 51; the reduction gear 552 is arranged at the upper end of the rotating rod 53; the reduction roller 553 is rotatably engaged with the reduction teeth 552; the reduction roller 553 may abut against the reduction ring 554; the reduction gear ring 554 is provided in the air pressure chamber 51.

As shown in fig. 5 and 10, the anti-shake device 6 includes a fixed frame 61, a rotating frame 62, a vent 63, a universal ball 64, a first rotating ring 65, a second rotating ring 66, a receiving ball 67, a weight 68, and an anti-shake assembly 69; the fixed frame 61 is arranged on the photographic disc 5; the rotating frame 62 can be embedded on the fixed frame 61 in a universal rotating manner; the plurality of cylinder wind controls 63 are arranged on the surface of the rotating frame, and the number can be set according to actual conditions; the universal ball 64 can be embedded on the photographic disc 5 in a universal rotating way; the first rotating ring 65 is rotatably embedded in the rotating frame 62, and the second rotating ring 66 is rotatably embedded in the first rotating ring 65; the accommodating ball 67 is fixedly arranged on the second rotating ring 66; the weight block 68 is disposed at the lower end of the receiving ball 67.

As shown in fig. 11, the anti-sloshing assembly 69 includes a moving block 691, a magnetic wheel 692, and a second spring 693; the moving block 691 can be embedded in the photographic disc 5 to move left and right; the magnetic wheel 692 is rotatably embedded on the moving block 691, and the magnetic wheel 692 can abut against the transverse telescopic rod 3; the second spring 693 connects the photographing tray 5 and the moving block 691.

As shown in fig. 12 to 14, the clamping device 2 includes a clamping block 21, a first slot 22, a telescopic plate 23, a connecting ball 24, a third spring 25, a second slot 26, and a pneumatic assembly 27; the clamping block 21 is movably embedded on the main body 1; the cross section of the first open groove 22 is wavy and is arranged on the surface of the clamping block 21; the telescopic plates 23 are movably embedded on the main body 1, and the number can be set according to actual conditions; the third spring 25 connects the telescopic plate 23 and the main body 1; the cross section of the second open groove 26 is wavy and is arranged on the expansion plate 23; the connecting device 24 can be embedded on the main body 1 in a universal rotating manner; the pneumatic assembly 27 is disposed within the clamping block 21.

As shown in fig. 15, the actuating assembly 27 includes a moving passage 271, a piston passage 272, a piston block 273, an air tube 274, and a positioning member 20; the channel 271 for moving at this time is arranged on the main body 1; 1/3, the length of the piston channel 272 is equal to that of the moving channel 271, and the piston channel is arranged in the moving channel 271; the piston block 273 is movably embedded in the piston channel 272; one end of the air pipe 274 is communicated with the piston channel 272, and the other end is communicated with the positioning piece 20; the positioning members 20 are disposed on both sides of the piston block 273.

As shown in fig. 15, the positioning member 20 includes a ratchet bar 201, a driving frame 202, a driving spring 203, and a ratchet block 204; the ratchet bar 201 is arranged on the side wall of the moving channel 271; the driving frame 202 is movably embedded on the piston block 273; the driving spring 203 is connected with the driving frame 202 and the piston block 273; the drive frame 202 is docked with the air tube 274; the ratchet block 204 is movably embedded in the driving frame 202, and the ratchet block 204 can be engaged with the ratchet bar 201.

The specific working process is as follows: before collection, a camera is placed in the storage ball 67; the piston channel 272 is then inflated by the gas compressor; firstly, the gas is led to the gas pipe 274 to drive the ratchet block 204 to move; then the ratchet block 204 is engaged with the ratchet bar 201; at this time, when the clamping block 21 moves, the ratchet block 204 and the ratchet bar 201 are abutted, so that the clamping block 21 can be stably fixed in the moving channel 271; so that the guardrail of the bridge is firmly fixed on the clamping plate 21; starting the longitudinal telescopic rod 7 and the transverse telescopic rod 3 to send the camera to the bottom surface of the bridge; at this time, under the action of the connecting pipe 54, the moving ball 102 abuts against the bottom of the bridge; the pneumatic chamber 51 is activated, at which time the moving plate 565 is driven to move downwards under the influence of the air pressure; the one-way valve seat 101 is driven to move downwards, and at the moment, the one-way valve seat 101 starts to act to drive the moving plate 565 to move downwards; while moving, the piston ring 104 moves downward; at this time, the volume of the inflation cavity 103 becomes smaller, and the suction cup 563 is driven by further air pressure to move upwards; under the influence of air pressure, the sucking disc 563 generates suction to suck the bottom of the bridge; starting a camera to acquire pictures, wherein the pictures are acquired under the action of wind power or the vibration of equipment; the universal ball 64 starts to shake, and the containing ball 67 is kept still under the action of the gravity of the balancing weight 68; on the other hand, the containing ball 67 is always kept at the same position under the principle action of the gyroscope; when the shooting disc shakes under the influence of wind power, the moving block 691 starts to move transversely under the action of the second spring 693; at the moment, the magnetic wheel 692 rolls against the end surface of the transverse telescopic rod 3, so that the shaking is reduced; after the collection is finished, the crawler belt 52 is driven to drive the transverse telescopic rod 3 to move; at this time, the rotary rod 53 starts to rotate, the torsion spring 551 starts to accumulate the force, and when the adsorption is needed again; the suction cup 563 is reset under the action of the torsion spring 551; at this time, the deceleration roller 553 continuously pushes against the deceleration teeth 554, so that the rotating rod 53 slowly rotates and resets; continue to collect pictures

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A portable bridge crack monitoring device with high stability comprises a main body (1), a clamping device (2) arranged on the main body (1), a longitudinal telescopic rod (7) arranged in the main body (1), a transverse telescopic rod (3) arranged in the longitudinal telescopic rod (7), an adsorption device (4) arranged on the transverse telescopic rod (3), a photographic disc (5) arranged at the tail end of the transverse telescopic rod (3) and an anti-shaking device (6) arranged on the photographic disc (5); the method is characterized in that: the adsorption device (4) comprises an air pressure chamber (51) arranged on the transverse telescopic rod (3), a crawler belt (52) arranged at the upper end of the air pressure chamber (51), a rotating rod (53) arranged in two side walls of the air pressure chamber (51), a connecting pipe (54) arranged on the rotating rod (53), a rotating mechanism (55) arranged on the rotating rod (53), and an adsorption disc (56) arranged on the connecting pipe (54); the rotary rods (53) are rotatably embedded at two sides of the air pressure chamber (51); the connecting pipe (54) is made of spring steel; the connecting pipe (54) is circular arc-shaped in longitudinal section, is a hollow pipe and is connected with the air pressure chamber (51).

2. The portable bridge crack monitoring device of claim 1, characterized in that: the adsorption disc (56) comprises a base (561) arranged on the connecting pipe (54), a fixing ring (562) arranged on the base (561), a sucking disc (563) arranged on the fixing ring (562), a first spring (564) arranged on the sucking disc (563), a moving plate (565) arranged on the fixing ring (562) and a driving assembly (10) arranged on the moving plate (565); the fixing ring (562) is arranged on the base, and the center of the fixing ring (562) is connected with the connecting pipe (54); the sucker (563) can move up and down and is embedded with the base (561) and the fixing ring (562); the first spring (564) is connected with the sucking disc (563) and the inner wall of the base (561); the moving plate (565) is embedded on the fixed ring (562) and can move up and down.

3. The portable bridge crack monitoring device of claim 2, characterized in that: the driving assembly (10) comprises a one-way valve seat (101) arranged on the moving plate (565), a moving ball (102) arranged on the one-way valve seat (101), an inflation cavity (103) arranged on the fixing ring (562), a piston ring (104) arranged on the moving plate (565) and an air outlet (105) arranged on the fixing ring (562); the moving ball (102) can be embedded on the one-way valve seat (101) in a universal moving way; the inflation cavity (103) is arranged between the fixing rings (562); the piston ring (104) can be embedded in the inflation cavity (103) in an up-and-down moving manner; the air outlet (105) is communicated with the bottom of the air inflation cavity (103) and the bottom of the sucker (563).

4. The portable bridge crack monitoring device of claim 1, characterized in that: the rotating mechanism (55) comprises a torsion spring (551) arranged at the lower end of the rotating stick (53), a speed reduction tooth (552) arranged at the upper end of the rotating stick (53), a speed reduction roller (553) arranged on the speed reduction tooth (552), and a speed reduction toothed ring (554) arranged in the air pressure chamber (51); the torsion spring (551) is connected with the rotary rod (53) and the outer wall of the air pressure chamber (51); the reduction roller (553) is rotatably embedded on the reduction teeth (552); the reduction roller 553 is capable of abutting against the reduction ring gear 554.

5. The portable bridge crack monitoring device of claim 1, characterized in that: the anti-shake device (6) comprises a fixed frame (61) arranged on the photographic disc (5), a rotating frame (62) arranged on the fixed frame (61), a vent hole (63) arranged on the rotating frame (62), a universal ball (64) arranged on the rotating frame (62), a first rotating ring (65) arranged in the rotating frame (62), a second rotating ring (66) arranged on the first rotating ring (65), a containing ball (67) arranged on the second rotating ring (66), a balancing weight (68) arranged on the containing ball (67), and an anti-shake assembly (69) arranged on the photographic disc (5); the rotating frame (62) can be embedded on the fixed frame (61) in a universal rotating manner; the universal ball (64) can be embedded on the photographic disc (5) in a universal rotating way; the first rotating ring (65) is rotatably embedded in the rotating frame (62), and the second rotating ring (66) is rotatably embedded in the first rotating ring (65); the receiving ball (67) is fixedly arranged on the second rotating ring (66).

6. The portable bridge crack monitoring device of claim 5, which is characterized in that: the anti-shaking assembly (69) comprises a moving block (691) arranged on the photographing disc (5), a magnetic wheel (692) arranged on the moving block (691), and a second spring (693) arranged on the moving block (691); the moving block (691) can move left and right and is embedded in the photographic disc (5); the magnetic wheel (692) is rotatably embedded on the moving block (691), and the magnetic wheel (692) can abut against the transverse telescopic rod (3); the second spring (693) is connected with the shooting disc (5) and the moving block (691).

7. The portable bridge crack monitoring device with high stability according to claim 1, wherein the clamping device (2) comprises a clamping block (21) arranged on the main body (1), a first slot (22) arranged on the clamping block (21), a telescopic plate (23) arranged on the main body (1), a connecting ball (24) arranged on the telescopic plate (23), a third spring (25) arranged on the connecting ball (24), a second slot (26) arranged on the telescopic plate (23), and a pneumatic assembly (27) arranged on the clamping block (21); the clamping block (21) is movably embedded on the main body (1); the cross section of the first open slot (22) is wave-shaped; the telescopic plates (23) are movably embedded on the main body (1); the third spring (25) is connected with the telescopic plate (23) and the main body (1); the cross section of the second open groove (26) is wave-shaped; the connecting device (24) can be embedded on the main body (1) in a universal rotating manner.

8. The portable bridge crack monitoring device of claim 7, which is characterized in that: the starting assembly (27) comprises a moving channel (271) arranged on the main body (1), a piston channel (272) arranged on the moving channel (271), a piston block (273) arranged on the clamping block (21), an air pipe (274) arranged on the piston block (273), and positioning pieces (20) arranged on two sides of the piston block (273); the length of the piston channel (272) is one third of that of the moving channel (271); the piston block (273) is movably embedded in the piston channel (272); one end of the air pipe (274) is communicated with the piston channel (272), and the other end of the air pipe is communicated with the positioning piece (20).

9. The portable bridge crack monitoring device of claim 8, wherein: the positioning piece (20) comprises ratchet racks (201) arranged at two sides of the moving channel (271), driving frames (202) arranged at two sides of the piston block (273), a driving spring (203) arranged on the driving frames (202), and a ratchet block (204) arranged in the driving frames (202); the driving frame (202) is movably embedded on the piston block (273); the driving spring (203) is connected with the driving frame (202) and the piston block (273); the driving frame (202) is butted with the air pipe (274); the ratchet block (204) is movably embedded in the driving frame (202), and the ratchet block (204) can be meshed with the ratchet bar (201).