Road and bridge safety detection device and detection method thereof
Technical Field
The invention relates to a road and bridge safety detection device and a detection method thereof, and belongs to the field of road and bridge safety detection.
Background
The safety detection of roads and bridges is an important step in the construction of roads and bridges, and in order to protect the safety of surrounding pedestrians in the construction process, a safety detection device needs to be used to ensure the safety during construction, but the existing safety detection device has some defects in use.
For example, the publication number CN202110460913.1 discloses a road and bridge safety detection device and a detection method thereof, four corners of a lower support plate are respectively and fixedly connected with a limit guide post; four corners of the upper supporting plate are respectively provided with a limiting jack; the limiting guide pillar penetrates through the limiting insertion hole and is in threaded connection with the fastening nut; a buffer spring is arranged on the limiting guide post relative to the space between the upper supporting plate and the buffer mechanism; the limiting guide post is provided with an external thread in threaded connection with the fastening nut; has buffering effect. When the device is used, the camera for shooting the bridge is buffered, so that workers can conveniently observe the road condition; however, in the construction process, the firmness degree of the installation of the construction enclosure cannot be detected, when pedestrians walk under a bridge, the construction enclosure which is not firmly installed can fall off to cause serious safety accidents, the existing road and bridge safety detection device cannot test the firmness degree of the installation and butt joint positions of the construction enclosure in the using process, cannot automatically light up for warning when the firmness degree of the detection position is insufficient, cannot test the firmness degree in a state that the enclosure is not fallen, and has insufficient safety; the existing road and bridge safety detection device does not have the function of observing the fluctuation condition of the ground in the moving process, can not visually know the fluctuation degree of a plurality of areas on the ground, and has insufficient functionality.
Therefore, the safety detection device and the detection method for the road and the bridge are improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing road and bridge safety detection device cannot detect the pavement evenness in the moving process when in use, and is inconvenient to clamp, enclose the fender and detect the firmness of the fender installation in construction.
(II) technical scheme
In order to achieve the purpose, the invention provides a road and bridge safety detection device and a detection method thereof, and the road and bridge safety detection device comprises a supporting seat, wherein a supporting plate is fixedly connected to the surface of the supporting seat, a display screen is installed above the supporting plate, a folded plate is fixedly connected to the top of the supporting plate, a flatness detection assembly is hinged to the supporting seat, an alarm is installed in the middle of the supporting plate, a clamping assembly is connected to the lower portion of the right side of the folded plate, a firmness testing assembly is installed inside the lower portion of the supporting plate and connected with the alarm through a transmission assembly, the clamping assembly is connected with the firmness testing assembly through a traction steel rope, a side connecting block is fixedly connected to the side surface of the display screen, a damping rod is fixedly connected to the surface of the side connecting block, and a comparison plate is slidably installed on the outer side of the damping rod.
Wherein, roughness determine module is including articulating in the first connecting plate of supporting seat left side below, the camera is installed to the surface equidistance of first connecting plate, the centre slidable mounting of first connecting plate has the gag lever post, the below fixedly connected with connection frame of gag lever post, the inside of connection frame is provided with links up the piece, the activity groove has been seted up to one side of linking up the piece, and the opposite side fixed mounting who links up the piece has the connecting block, the below fixedly connected with fixed block that links up the piece, the ball is installed in the internal rotation of fixed block.
Wherein, fixed mounting has the butt joint pole between first connecting plate and the adjacent first connecting plate, fixedly connected with butt joint plate in the backup pad on butt joint pole right side, the inside of butt joint plate is run through and is provided with the kelly, the butt joint pole passes through to constitute the block structure between kelly and the backup pad, link up the piece and be fixed connection in the inside evenly distributed of linking frame, linking piece and the connected mode between the linking frame of periphery outside.
The warning device comprises a fixed plate fixedly mounted on a supporting plate, an alarm lamp is mounted on the surface of the fixed plate, a first conductive contact piece is electrically connected to the alarm lamp, a sliding frame is arranged in the supporting plate in a penetrating mode, a battery is fixedly mounted on the left side of the sliding frame, a second conductive contact piece is electrically connected to the battery, and the position of the second conductive contact piece corresponds to the position of the first conductive contact piece.
Wherein, clamping component is including running through in the inside guide arm of folded plate, be provided with first electric putter between guide arm and the adjacent guide arm, be fixed connection between first electric putter's the top and the folded plate, first electric putter's below fixedly connected with second electric putter, second electric putter's below fixedly connected with bearing board, bearing board's left side slidable mounting has the slider, and bearing board's right side is fixed and is provided with the overlap joint piece, the equal fixedly connected with fixed axle in below of the below of overlap joint piece and slider, the below of fixed axle is rotated and is connected with the rubber rotary drum.
The right side of the sliding block is fixedly connected with a connecting shaft, the front end of the second electric push rod is connected with the connecting shaft, the left half part of the connecting shaft penetrates through the inside of the lapping block, a first spring is sleeved on the outer side of the connecting shaft, and the head end and the tail end of the first spring are connected with the sliding block and the lapping block respectively.
The bottom of the rubber rotary drum is of an inverted circular truncated cone structure, the rubber rotary drum, the sliding blocks and the lapping blocks are distributed below the bearing plate at equal intervals, and a construction enclosure is arranged between the rubber rotary drum and the adjacent rubber rotary drum.
Wherein, firmness test assembly includes slidable mounting in the inside movable rod of backup pad, the fixed flange that is provided with in left side of movable rod, the right side fixedly connected with extension rod of movable rod, the outside slidable mounting of extension rod has the outer liner, and the extension rod passes through the second spring and links to each other with the outer liner, the flange links to each other with traction steel cable, traction steel cable's right-hand member links to each other through leading wheel direction and second electric putter's left side, movable rod and extension rod constitute first extending structure between through traction steel cable, first electric putter and second electric putter and the backup pad.
The transmission assembly comprises a first rack fixedly mounted on the upper surface of the outer bushing, a transverse plate is fixedly mounted on the side surface of the supporting plate, a gear is connected to the transverse plate in a rotating mode, a second rack is meshed above the gear and is fixedly connected with the sliding frame, and the second conductive contact piece is of a second telescopic structure formed between the first rack, the gear, the second rack, the outer bushing and the first conductive contact piece.
A detection method of a road and bridge safety detection device comprises the following steps:
s1: the supporting seat supports and moves the whole device, and the clamping assembly clamps the enclosure with different thicknesses in the moving process;
s2: after the enclosure is clamped, the height of the clamping assembly is adjusted, so that the device can drive the firmness testing assembly to move to the right side through the traction steel rope, the enclosure can be extruded outwards, and the firmness of the installation of the enclosure is tested;
s3: in the testing process, if the movement amplitude of the firmness testing component to the right side is too large, the warning device is triggered through the transmission component, and then a warning function is automatically sent out when the firmness degree is insufficient during testing;
s4: after the firmness of enclosing the fender is accomplished in the test, through expansion roughness determine module, the biggest undulation position on cooperation display screen observation ground, and then test the roughness on ground when removing.
(III) advantageous effects
The invention provides a road and bridge safety detection device and a detection method thereof, which have the beneficial effects that:
1. through the arranged flatness detection assembly, the device can observe the fluctuation state of the connecting block at each position through the camera in the moving process, the ball below the connecting block can reduce the resistance of the connecting block in the moving process, and the connecting block can realize the function of self-adapting to the height fluctuation ground when contacting the ground through the ball, the fluctuation condition of the ground is simulated through the fluctuation at the top of each connecting block, so that the device can know the fluctuation condition of the ground in the moving process, the defect that the conventional road safety detection device cannot visually know the fluctuation degree of the ground is overcome, the device can also compare the display content on the display through the comparison board by adjusting the height of the comparison board on the display, and if the connecting block exceeds the comparison board, the surface fluctuation degree is too large, so that the error allowable range of the fluctuation degree of the ground is changed;
2. through the clamping assembly and the firmness testing assembly, after the device can clamp the enclosure on a bridge, the second electric push rod is pushed through the first electric push rod, the device can push the movable rod to the right side, so that the device can extrude the construction enclosure through the outer lining, the device can test the firmness of the enclosure after clamping the enclosure, the device is matched with a traction steel rope, a transmission assembly and an alarm, the device can enable the traction steel rope to continuously pull a convex plate to the right side in the gradual extension process of the first electric push rod, the device can change the firmness testing force, the adjustable degree of the device is improved, the first conductive contact plate and the second conductive contact plate can be gradually close to each other by utilizing a meshing transmission structure in the gradual right side movement process of the outer lining, the outer lining can automatically trigger an alarm lamp when the connection of the enclosure is pushed to be separated, the worker can re-firmly test the fallen enclosure, the device can realize that the firmness of the enclosure can be tested under the condition that the enclosure cannot be separated from the edge of the bridge, the functional performance and the applicability of the device are improved, and the problem that the safety of the device cannot be used when the enclosure is solved;
3. through the equidistant rubber rotary drum that distributes that sets up, make the rubber rotary drum can press from both sides tightly to keep certain resistance when enclosing the fender, make to enclose the fender and can not drop, and make the device can fix the fender that encloses that adapts to not unidimensional through first spring and connecting axle, and the in-process that encloses the fender fixedly can also utilize the radius platform structure that encloses the fender bottom, make first electric putter on the device can automatic chucking enclose the fender when the downstream, the rubber rotary drum can not influence the device back-and-forth movement when pressing from both sides tightly, the result of use of device has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a road and bridge safety detection device provided by the present application;
FIG. 2 is a schematic view of the structure at A in FIG. 1 of the present application;
FIG. 3 is a schematic view of a connecting structure of a guide rod and a folded plate of the road and bridge safety detection device provided by the present application;
FIG. 4 is a schematic view of a connection structure of a fixed shaft and a rubber rotary drum of the road and bridge safety detection device provided by the present application;
fig. 5 is a schematic front view of the safety detection device for roads and bridges provided by the present application;
FIG. 6 is a schematic view of the connection structure of the convex plate and the traction steel cable of the road and bridge safety inspection device provided by the present application;
FIG. 7 is a schematic view of a connection structure of a connection block and a fixing block of the road and bridge safety detection device provided by the present application;
FIG. 8 is a schematic view of a split structure of a connecting block and a fixing block of the road and bridge safety detection device provided by the present application;
fig. 9 is a schematic view of a connection structure between a display screen and a comparison board of the road and bridge safety detection device provided by the present application.
1. A supporting seat; 2. a support plate; 3. a display screen; 4. folding a plate; 5. a flatness detection assembly; 501. a first connecting plate; 502. a camera; 503. a limiting rod; 504. a connecting frame; 505. a joining block; 506. a movable groove; 507. connecting blocks; 508. a fixed block; 509. a ball bearing; 6. an alarm; 601. a fixing plate; 602. an alarm lamp; 603. a first conductive contact; 604. a sliding frame; 605. a battery; 606. a second conductive contact; 7. a clamping assembly; 701. a guide bar; 702. a first electric push rod; 703. a bearing plate; 704. a slider; 705. a fixed shaft; 706. a rubber drum; 707. a connecting shaft; 708. a lapping block; 709. a first spring; 8. a firmness test component; 801. a movable rod; 802. a convex plate; 803. an extension rod; 804. a second spring; 805. an outer liner; 9. a transmission assembly; 901. a first rack; 902. a gear; 903. a second rack; 904. a transverse plate; 10. a traction steel rope; 11. a butt plate; 12. a clamping rod; 13. a second electric push rod; 14. a docking rod; 15. constructing a surrounding barrier; 16. a side connection block; 17. a damping lever; 18 control plate.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
as shown in FIG. 1, FIG. 5 and FIG. 9, the embodiment provides a road bridge safety detection device, which comprises a support base 1, a support plate 2 is fixedly connected to the surface of the support base 1, a display screen 3 is installed above the support plate 2, a folded plate 4 is fixedly connected to the top of the support plate 2, a flatness detection assembly 5 is hinged to the support base 1, the flatness detection assembly 5 is matched with the display screen 3, so that a worker can simultaneously observe the fluctuation of the current ground when moving the whole device, the functionality of the device is improved, an alarm 6 is installed in the middle of the support plate 2, a clamping assembly 7 is connected to the lower part of the right side of the folded plate 4, the clamping assembly 7 can clamp a fence, when the subsequent fence firmness test is performed, the fence cannot fall, the stability of the device is improved, a firmness test assembly 8 is installed inside the lower half of the support plate 2, the device can push the side of the fence through the clamping assembly 8, the device can push the device to push the butted position of the fence outward, the fence to see whether the fence falls after the fence is clamped by pushing the fixing assembly 8 through a transmission assembly 9 and the warning assembly 7, the fence is connected to a steel rope, when the steel rope fixing assembly is connected to the device, the fence fixing assembly, the device can change the surface of the fence, and the cable fixing assembly, the cable fixing assembly can be pushed to the fence fixing assembly, and the fence fixing assembly can be restored through the steel rope fixing assembly, and the steel rope fixing assembly, when the steel rope fixing assembly can be used for the cable fixing block fixing effect of the device is improved device, and the fence is improved, and the device can be automatically, the steel rope fixing device can be changed, the comparison plate 18 is slidably mounted on the outer side of the damping rod 17, and the height of the comparison plate 18 is changed through the damping rod 17 on the side connecting block 16, so that the device not only can intuitively observe the fluctuation condition of each area of the ground, but also can adjust the error allowable range of the fluctuation of the ground.
Example 2:
the scheme of example 1 is further described below in conjunction with specific working modes, which are described in detail below:
as shown in fig. 1, 2, 5, 7 and 8, as a preferred embodiment, on the basis of the above manner, further, the flatness detection assembly 5 includes a first connection plate 501 hinged to the left lower side of the support base 1, cameras 502 are mounted on the surface of the first connection plate 501 at equal intervals, a limiting rod 503 is slidably mounted in the middle of the first connection plate 501, a connection frame 504 is fixedly connected to the lower side of the limiting rod 503, a connection block 505 is disposed inside the connection frame 504, a movable groove 506 is formed in one side of the connection block 505, a connection block 507 is fixedly mounted on the other side of the connection block 505, a fixed block 508 is fixedly connected to the lower side of the connection block 505, and balls are rotatably mounted inside the fixed block 508, the whole device contacts the ground in the moving process, the balls 509 contact the ground, the connection block 505 can be lifted to corresponding positions according to the heights of different areas of the ground, if the ground undulation degree is too large, the cameras 502 on the device can observe the connected blocks 505 lifted by the projected concrete, the uniformly distributed cameras 502 can simultaneously wear multiple areas of the ground, the balls 509 can reduce the durability of the device when the device is moved, and the fixed block 508 can be lifted.
As shown in fig. 1, 2 and 5, as a preferred embodiment, in addition to the above-mentioned manner, a docking rod 14 is fixedly installed between a first connecting plate 501 and an adjacent first connecting plate 501, a docking plate 11 is fixedly connected to the supporting plate 2 on the right side of the docking rod 14, a clamping rod 12 is arranged through the inside of the docking plate 11, the docking rod 14 forms a clamping structure with the supporting plate 2 through the clamping rod 12, the engaging blocks 505 are uniformly distributed inside the connecting frame 504, the connecting manner between the outermost engaging block 505 and the connecting frame 504 is fixed, the docking rod 14 can subsequently cooperate with the docking plate 11 and the detachable clamping rod 12 to clamp the first connecting plate 501 and the adjacent first connecting plate 501, so as to complete the accommodating operation of the first connecting plate 501 and the adjacent first connecting plate 501, and at the same time, the apparatus can observe the undulation degree of a plurality of areas of the road surface through the evenly distributed engaging blocks 505, and improve the detection accuracy of the apparatus.
As shown in fig. 1 and fig. 6, as a preferred embodiment, in addition to the above-mentioned manner, further, the warning device 6 includes a fixing plate 601 fixedly mounted on the supporting plate 2, a warning lamp 602 is mounted on a surface of the fixing plate 601, a first conductive contact 603 is electrically connected to the warning lamp 602, a sliding frame 604 is penetratingly disposed inside the supporting plate 2, a battery 605 is fixedly mounted on a left side of the sliding frame 604, a second conductive contact 606 is electrically connected to the battery 605, and a position of the second conductive contact 606 corresponds to a position of the first conductive contact 603.
As shown in fig. 3, 4 and 5, as a preferred embodiment, in addition to the above-mentioned manner, the clamping assembly 7 includes a guide rod 701 penetrating inside the flap 4, a first electric push rod 702 is disposed between the guide rod 701 and the adjacent guide rod 701, the top of the first electric push rod 702 is fixedly connected to the flap 4, a second electric push rod 13 is fixedly connected to the lower side of the first electric push rod 702, a support plate 703 is fixedly connected to the lower side of the second electric push rod 13, the first electric push rod 702 can adjust the heights of the support plate 703 and the second electric push rod 13, so that the device can clamp fences of different heights, the applicability of the device is improved, a slider 703 is slidably mounted on the left side of the support plate, a lap block 708 is fixedly disposed on the right side of the support plate 703, a fixed shaft is fixedly connected to both the lower side of the lap block 703 and the lower side of the slider 705, a rubber drum 708 is rotatably connected to the lower side of the fixed shaft 705, and a rubber drum 706 on the device can move forward and backward without affecting the practicability of the device.
As shown in fig. 1, fig. 3, fig. 4 and fig. 5, as a preferred embodiment, on the basis of the above manner, further, a connecting shaft 707 is fixedly connected to the right side of the sliding block 704, the front end of the second electric push rod 13 is connected to the connecting shaft 707, the left half portion of the connecting shaft 707 penetrates through the inside of the overlapping block 708, a first spring 709 is sleeved outside the connecting shaft 707, the head and the tail ends of the first spring 709 are respectively connected to the sliding block 704 and the overlapping block 708, and the first spring 709 on the device can tension the front and rear groups of sliding blocks 704 and the overlapping block 708, so that the device can be self-adapted to enclosures with different sizes to perform fixing work, and the application range of the device is expanded.
As shown in fig. 1, 3, 4 and 5, as a preferred embodiment, on the basis of the above manner, further, the bottom of the rubber rotating cylinder 706 is of an inverted frustum structure, the rubber rotating cylinders 706, the sliding blocks 704 and the overlapping blocks 708 are distributed below the supporting plate 703 at equal intervals, a construction fence 15 is arranged between the rubber rotating cylinder 706 and the adjacent rubber rotating cylinders 706, and the two groups of rubber rotating cylinders 706 can be automatically clamped on two sides of the fence in the process of pressing down through the inverted frustum structure at the bottom of the rubber rotating cylinder 706, so that additional operation is not required, and convenience in use of the device is improved.
As shown in fig. 5, as a preferred embodiment, on the basis of the above-mentioned manner, further, the firmness test assembly 8 includes a movable rod 801 slidably mounted inside the support plate 2, a protruding plate 802 is fixedly disposed on the left side of the movable rod 801, an extension rod 803 is fixedly connected to the right side of the movable rod 801, an outer bushing 805 is slidably mounted on the outer side of the extension rod 803, the extension rod 803 is connected to the outer bushing 805 through a second spring 804, the protruding plate 802 is connected to the traction cable 10, the right end of the traction cable 10 is connected to the left side of the second electric push rod 13 through a guide wheel, the movable rod 801 and the extension rod 803 pass through the traction cable 10, a first telescopic structure is formed between the first electric push rod 702 and the second electric push rod 13 and the support plate 2, when the first electric push rod 702 extends, the left end of the second electric push rod 13 can pull the traction cable 10, so that the traction cable 10 drives the protruding plate 802 to move to the right side, and the protruding plate 802 pushes the outer bushing 805, so that the apparatus can change the elongation of the outer bushing 801 and the tightness of the electric push rod 702 while changing the elongation of the first push rod 702, and further, and the firmness test apparatus can be used for improving the firmness of the apparatus, and further, and the firmness test apparatus can be used for improving the firmness of the durability of the apparatus.
As shown in fig. 5, as a preferred embodiment, in addition to the above-mentioned mode, the transmission assembly 9 further includes a first rack 901 fixedly mounted on the upper surface of the outer bushing 805, a horizontal plate 904 is fixedly mounted on the side surface of the support plate 2, a gear 902 is rotatably connected to the horizontal plate 904 left and right, a second rack 903 is engaged and connected above the gear 902, the second rack 903 and the sliding frame 604 are fixedly connected, a second telescopic structure is formed by the second conductive contact 606 through the first rack 901, the gear 902, the second rack 903 and the outer bushing 805 and the first conductive contact 603, and the gear 902 is rotated by the second telescopic structure on the device during the process that the outer bushing 805 moves rightward so that the second rack 903 drives the sliding frame 604 to move leftward, and the first conductive contact 603 and the second conductive contact 606 are contacted with each other, thereby implementing the automatic lighting function.
Example 3:
the schemes of example 1 and example 2 are further described below in conjunction with specific working examples, which are described in detail below:
specifically, the road and bridge safety detection device and the detection method thereof are used as follows:
as shown in fig. 1, 2, 5, 7 and 8, the device is used for testing the flatness of the ground by the flatness detecting unit 5, the flatness detecting unit 5 is unfolded first, the flatness detecting assembly 5 is rotated to the state of fig. 5 by withdrawing the latch 12 in the docking plate 11 so that the docking lever 14 and the first connection plate 501 can rotate on the supporting base 1, and at this time, the connection frame 504 naturally falls down inside the first connection plate 501 through the stopper rod 503, contacts the ground through the balls 509 on the fixing blocks 508 at various places in the connection frame 504, so that when the device is moved, the fixing block 508 will not be worn due to excessive friction, and at the same time, the camera 502 on the first connecting plate 501 will capture and record the undulation of the connecting block 505 at various positions in the connecting frame 504, since the rolling balls 509 are in contact with the ground, the engagement blocks 505 are moved up and down on the adjacent engagement blocks 505 through the movable grooves 506 and the connection blocks 507, therefore, the fluctuation condition of the connection blocks 505 at various positions in the connection frame 504 is the fluctuation condition of the ground, and by using the cameras 502 arranged at equal intervals and the connection blocks 505 distributed uniformly, the device can display the ground relief condition of each area of the current road surface in time through the display screen 3, the detection precision of the device is higher, and the trimming is carried out in the area with large undulation process, the device can display the fluctuation condition of each connection block 505 on the display screen 3 through the camera 502, the height of the control plate 18 is then changed by the damping rods 17 on the side blocks 16 (shown in connection with fig. 9), it is observed whether the adapter blocks 505 exceed the control plate 18, the contrast detection work is carried out through the contrast plates 18 at different heights, so that the device can change the allowable range of the road surface undulation error;
as shown in fig. 1, 3, 4, 5 and 6, the device can also detect the firmness degree of the construction fence 15 in the moving process, the construction fence 15 is clamped by the clamping assembly 7, the second electric push rod 13 and the supporting plate 703 are vertically moved below the folded plate 4 through the guide rod 701 by extending the first electric push rod 702, the two groups of rubber drums 706 can be automatically clamped on the left side and the right side of the construction fence 15 through the inverted circular truncated cone structure below the rubber drums 706, at this time, the rubber drums 706 are moved below the supporting plate 703 through the first spring 709 and the connecting shaft 707, the sliding block 704 is pulled by the first spring 709 between the overlapping blocks 708, so that the adjacent two rubber drums 706 can clamp the construction fence 15, and the whole device is not influenced to move back and forth; in the process that the first electric push rod 702 extends, the traction steel rope 10 on the left side of the second electric push rod 13 can be matched with the guide wheel to pull the convex plate 802, so that the convex plate 802 drives the movable rod 801 and the extension rod 803 to move towards the right side, the device can push the outer bushing 805 through the second spring 804, the outer bushing 805 can extrude the construction enclosure 15 towards the right side, the firmness degree of the enclosure butt joint position can be tested, the larger the extension amount of the first electric push rod 702 is, the longer the moving distance of the extension rod 803 towards the right side is, the higher the compression degree of the second spring 804 is, the larger the testing force is, and the testing force of the adjustment device on the enclosure firmness degree is; the device encloses fender 15 when pushing away to breaking away from or warping at the construction at outer bush 805, first rack 901 moves to the right side, gear 902 anticlockwise rotation on the diaphragm 904, second rack 903 drives sliding frame 604 and moves to the left side to drive battery 605 and second conductive contact piece 606 and move to the left side, until second conductive contact piece 606 contacts first conductive contact piece 603, alarm lamp 602 circular telegram this moment, make the construction on the device enclose fender 15 and push away to can the automatic light when breaking away from or warping, automatic alarm function has been realized.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.