Unmanned aerial vehicle for detecting bottom of bridge

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle for detecting the bottom of a bridge, which comprises a shell assembly, a plurality of groups of lifting mechanisms, a plurality of groups of mounting assemblies, a detection assembly and a plurality of groups of buffer assemblies, and each group of buffer assembly comprises a clamping block, a first spring, a guide rod, a sliding plate, a sliding sleeve and a buffer pad. The buffer assemblies are evenly arranged below the shell assembly, the clamping block is arranged below the shell assembly, one end of the first spring is fixedly connected with the clamping block and located above the clamping block, the other end of the first spring is fixedly connected with the sliding plate, the guide rod is fixedly connected with the sliding plate, the sliding plate is movably connected with the sliding sleeve, and the buffer pad is fixedly connected with the sliding sleeve. Through the arrangement, the technical problems that the unmanned aerial vehicle directly makes hard contact with the ground through the vehicle body during landing after being used, the damping effect is not achieved, and the ultrasonic probe is damaged after being used for a long time are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to an unmanned aerial vehicle for detecting the bottom of a bridge. Background Art

[0002] Existing technology Bridge defect detection is a necessary maintenance project that is carried out regularly every year for each bridge. In the existing technology, bridge detection is generally carried out by human eyes, which has high labor costs and is dangerous when working at high altitudes. With the increasing maturity of drone technology, drones are gradually being applied to various fields. Therefore, some people think of using drones to inspect bridges to replace human labor.

[0003] In the prior art, patent CN208165262U discloses an unmanned aerial vehicle used for detecting defects at the bottom of a bridge, which belongs to the technical field of unmanned aerial vehicles and includes a fuselage, a remote control device, an ultrasonic probe and a positioning device. The fuselage is equipped with a plurality of rotors, and a flight control module and a signal transmission module are arranged in the fuselage; the remote control device is electrically connected to the signal transmission module of the fuselage; the ultrasonic probe is installed on the top of the fuselage; the positioning device has at least three, which are installed on the fuselage around the ultrasonic probe; the positioning device is suitable for contacting the bottom of the bridge after the ultrasonic probe contacts the workpiece to be tested and limiting the horizontal degree of freedom of the fuselage, and the rotor is suitable for always providing an upward thrust to the fuselage when the ultrasonic probe contacts the workpiece to be tested, which can make the flaw detection result of the unmanned aerial vehicle on the bottom of the bridge more reliable and stable, and at the same time it also has the advantages of strong adaptability and a wide range of applicable working conditions.

[0004] However, in the above-mentioned prior art, when the drone is landed after use, the fuselage directly contacts the ground without any shock absorption effect, and the ultrasonic probe may be damaged after long-term use. Summary of the invention

[0005] The purpose of the present invention is to provide a drone for detecting the bottom of a bridge, so as to solve the technical problem in the prior art that when the drone lands after use, the fuselage directly contacts the ground without a shock-absorbing effect, and the ultrasonic probe may be damaged after long-term use.

[0006] To achieve the above-mentioned purpose, the present invention provides a drone for detecting the bottom of a bridge, comprising a shell assembly, multiple groups of lifting mechanisms, multiple groups of mounting assemblies, detection assemblies and buffer assemblies, each group of the buffer assemblies comprising a card block, a first spring, a guide rod, a slide plate, a sliding sleeve and a buffer pad, multiple groups of the lifting mechanisms respectively cooperate with multiple groups of the mounting assemblies, multiple groups of the mounting assemblies are evenly arranged on the outside of the shell assembly, the detection assembly is arranged above the shell assembly, and multiple groups of the buffer assemblies are evenly arranged below the shell assembly, the card block is arranged below the shell assembly, one end of the first spring is fixedly connected to the card block and is located above the card block, the other end of the first spring is fixedly connected to the slide plate and is located above the slide plate, the guide rod is fixedly connected to the slide plate and is located above the slide plate, and passes through the first spring to cooperate with the shell assembly, the slide plate is movably connected to the sliding sleeve and is arranged on the inner side of the sliding sleeve, and the buffer pad is fixedly connected to the sliding sleeve and is located below the sliding sleeve.

[0007] Among them, the shell assembly includes a fuselage and multiple supporting feet, the multiple supporting feet are fixedly connected to the fuselage and are evenly arranged below the fuselage, each group of the blocking blocks are respectively arranged below the multiple supporting feet, and the multiple supporting feet respectively cooperate with each group of the guide rods.

[0008] Among them, each group of the mounting components includes two mounting plates and a rotating shaft, the two mounting plates are fixedly connected to the fuselage and are evenly arranged on the outside of the fuselage, the rotating shaft is fixedly connected to the two mounting plates and is arranged in the middle of the two mounting plates, and cooperates with the lifting mechanism.

[0009] Wherein, the detection component includes a rotating unit, multiple groups of positioning units and a probe body, the multiple groups of units are evenly arranged above each group of the mounting components, the rotating unit is arranged in the middle of the fuselage, and the probe body is arranged above the rotating unit.

[0010] Among them, the rotating unit includes a first shell and a second shell, the first shell has a linear groove, the second shell has a spiral groove, the second shell is arranged above the fuselage, the first shell is arranged above the second shell, and the probe body cooperates with the linear groove and the spiral groove.

[0011] Wherein, each group of the positioning units includes two electromagnets, a permanent magnet and a positioning column, and the two electromagnets are respectively arranged above the permanent magnet and outside the positioning column, and cooperate with the fuselage.

[0012] Among them, the drone for detecting the bottom of the bridge also includes multiple groups of auxiliary positioning components, each group of the auxiliary positioning components includes a support sleeve, a support rod and a second spring, the support sleeve is fixedly connected to the fuselage and is located on the outside of the fuselage, the support rod is movably connected to the support sleeve and is located in the middle of the support sleeve, and the second spring is arranged on the outside of the support rod and cooperates with the support sleeve.

[0013] The present invention discloses an unmanned aerial vehicle for detecting the bottom of a bridge. The shell component is provided to support the device. The plurality of lifting mechanisms are provided to drive the detection component to rise. The buffer component is provided to protect the detection component when the device descends. This effectively solves the technical problem that when the unmanned aerial vehicle lands after use, the fuselage directly contacts the ground hard and has no shock-absorbing effect, and the ultrasonic probe may be damaged after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the top structure of the first embodiment of the present invention.

[0017] Figure 3 It is a partial structural cross-sectional view of the first embodiment of the present invention.

[0018] Figure 4 It is a three-dimensional structural diagram of the second embodiment of the present invention.

[0019] Figure 5 It is a three-dimensional structural diagram of the third embodiment of the present invention.

[0020] 101-lifting mechanism, 102-block, 103-first spring, 104-guide rod, 105-slide plate, 106-sleeve, 107-buffer pad, 108-fuselage, 109-support foot, 110-mounting plate, 111-rotating shaft, 112-probe body, 113-first shell, 114-second shell, 115-linear groove, 116-involute groove, 117-electromagnet, 118-permanent magnet, 119-positioning column, 201-support sleeve, 202-support rod, 203-second spring, 301-sleeve, 302-connecting rod, 303-motor, 304-rotating rod, 305-fan blade, 306-upper protection frame, 307-lower protection frame, 308-fixing screw. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0022] First embodiment:

[0023] See also Figure 1 to Figure 3 ,in Figure 1 is a schematic structural diagram of a first embodiment of the present invention, Figure 2 is a schematic diagram of the top structure of the first embodiment of the present invention, Figure 3 It is a partial structural cross-sectional view of the first embodiment of the present invention.

[0024] The present invention provides an unmanned aerial vehicle for detecting the bottom of a bridge, comprising a shell assembly, multiple groups of lifting mechanisms 101, multiple groups of mounting assemblies, a detection assembly and multiple groups of buffer assemblies, each group of the buffer assemblies comprising a block 102, a first spring 103, a guide rod 104, a slide plate 105, a sleeve 106 and a buffer pad 107; the shell assembly comprises a fuselage 108 and multiple supporting feet 109; each group of the mounting assemblies comprises two mounting plates 110 and a rotating shaft 111; the detection assembly comprises a rotating unit, multiple groups of positioning units and a probe body 112; the rotating unit comprises a first shell 113 and a second shell 114, the first shell 113 has a linear groove 115, and the second shell 114 has an involute groove 116; each group of the positioning units comprises two electromagnets 117, a permanent magnet 118 and a positioning column 119, and the above arrangement solves the problem that when the unmanned aerial vehicle is landed after use, the fuselage 108 directly makes hard contact with the ground without a shock absorbing effect, and the ultrasonic probe is damaged after long-term use.

[0025] According to the present specific embodiment, the plurality of groups of lifting mechanisms 101 respectively cooperate with the plurality of groups of mounting components, the plurality of groups of mounting components are evenly arranged on the outside of the shell component, the detection component is arranged above the shell component, the plurality of groups of buffer components are evenly arranged below the shell component, the clamping block 102 is arranged below the shell component, one end of the first spring 103 is fixedly connected to the clamping block 102 and is located above the clamping block 102, the other end of the first spring 103 is fixedly connected to the slide plate 105 and is located above the slide plate 105, the guide rod 104 is fixedly connected to the slide plate 105 and is located above the slide plate 105, and passes through the first spring 103 and the guide rod 104. The shell components cooperate with each other, the slide plate 105 is movably connected to the sleeve 106 and is arranged on the inner side of the sleeve 106, the buffer pad 107 is fixedly connected to the sleeve 106 and is located below the sleeve 106. Through the setting of the block 102, the block 102 plays a role in installing the first spring 103. The setting of the first spring 103 drives the guide rod 104 to move up and down, thereby driving the device to reduce shock. The setting of the slide plate 105 cooperates with the slide cylinder to realize the vertical compression of the first spring 103. The setting of the buffer pad 107 assists the first spring 103 in reducing shock.

[0026] Among them, the multiple supporting feet 109 are fixedly connected to the fuselage 108 and are evenly arranged below the fuselage 108. Each group of the blocking blocks 102 is respectively arranged below the multiple supporting feet 109. The multiple supporting feet 109 respectively cooperate with each group of the guide rods 104. Through the arrangement of the multiple supporting feet 109, the multiple supporting feet 109 play a role in supporting the fuselage 108.

[0027] Secondly, the two mounting plates 110 are fixedly connected to the fuselage 108 and are evenly arranged on the outside of the fuselage 108. The rotating shaft 111 is fixedly connected to the two mounting plates 110 and is arranged in the middle of the two mounting plates 110, and cooperates with the lifting mechanism 101. Through the setting of the two mounting plates 110, the two mounting plates 110 and the rotating shaft 111 cooperate with each other, so as to connect the lifting mechanism 101 with the fuselage 108. The setting of the rotating shaft 111 plays a role in driving the lifting mechanism 101 to change its angle.

[0028] Secondly, multiple groups of the units are evenly arranged above each group of the mounting components, the rotating unit is arranged in the middle of the fuselage 108, and the probe body 112 is arranged above the rotating unit. Through the setting of the rotating unit, the rotating unit drives the probe body 112 to rotate, and the setting of multiple groups of the positioning units drives the probe body 112 to contact the object to be measured.

[0029] Secondly, the second shell 114 is arranged above the fuselage 108, and the first shell 113 is arranged above the second shell 114. The probe body 112 cooperates with the linear groove 115 and the involute groove 116. The probe body 112 passes through the linear groove 115 and the involute groove 116, so that the connecting angle between the probe body 112 and the center of the rotating unit changes. Under the combined drive of the linear groove 115 and the involute groove 116, the probe body 112 and the first shell 113 and the second shell 114 can be continuously changed, and the moving range is increased.

[0030] At the same time, the two electromagnets 117 are respectively arranged above the permanent magnet 118 and on the outside of the positioning column 119, and cooperate with the fuselage 108. Through the cooperation of the two electromagnets 117, it is possible to drive the positioning unit to move upward, thereby assisting the use of the probe body 112.

[0031] When using a drone for detecting the bottom of a bridge according to the present embodiment, the buffer pad 107 is brought into contact with the ground, and the buffer pad 107 drives the first spring 103 to be compressed and the guide rod 104 to slide, and at the same time the slide plate 105 can move up and down in the slide tube, thereby playing a role in buffering and shock absorbing the device. In this way, the technical problem that when the drone lands after use, the fuselage 108 directly contacts the ground hard and has no shock absorbing effect, and the ultrasonic probe may be damaged after long-term use is effectively solved.

[0032] Second embodiment:

[0033] Based on the first embodiment, please refer to Figure 4 ,in Figure 4 It is a three-dimensional structural diagram of the second embodiment of the present invention.

[0034] The present invention provides a drone for detecting the bottom of a bridge, which also includes multiple groups of auxiliary positioning components. Each group of the auxiliary positioning components includes a support sleeve 201, a support rod 202 and a second spring 203. Through the setting of the auxiliary positioning components, the auxiliary positioning components can assist the probe body 112 to contact the measurement body more closely.

[0035] According to this specific embodiment, the support sleeve 201 is fixedly connected to the fuselage 108 and is located on the outside of the fuselage 108. The support rod 202 is movably connected to the support sleeve 201 and is located in the middle of the support sleeve 201. The second spring 203 is sleeved on the outside of the support rod 202 and cooperates with the support sleeve 201. Through the setting of the support sleeve 201, the support sleeve 201 cooperates with the support rod 202, and by cooperating with the second spring 203, the auxiliary positioning function is achieved.

[0036] When using a drone for detecting the bottom of a bridge according to this embodiment, the support rod 202 is brought into contact with the object to be measured so that the support rod 202 can move in the sleeve 301, and at the same time the second spring 203 is compressed so that the probe body 112 can contact the object to be measured, thereby achieving better measurement of the object to be measured.

[0037] Third embodiment:

[0038] Each group of the lifting mechanism 101 includes a sleeve 301, a connecting rod 302, a power assembly and a protection assembly. The sleeve 301 is arranged in the middle of the two mounting plates 110 and cooperates with one of the electromagnets 117. The connecting rod 302 is arranged in the middle of the two mounting plates 110 and cooperates with the rotating shaft 111 and is sleeved in the middle of the sleeve 301. The power assembly is arranged at one end of the connecting rod 302, and the protection assembly is arranged above the power assembly.

[0039] The power assembly includes a motor 303, a rotating rod 304 and a fan blade 305. The motor 303 is fixedly connected to the connecting rod 302 and is located at one end of the connecting rod 302. The rotating rod 304 is arranged at the output end of the motor 303. The fan blade 305 is movably connected to the rotating rod 304 and is located above the rotating rod 304.

[0040] The protection assembly includes an upper protection frame 306, a lower protection frame 307 and a fixing screw 308. The lower protection frame 307 is fixedly connected to the motor 303 and is sleeved on the outer side of the lower protection frame 307. The upper protection frame 306 is movably connected to the lower protection frame 307 and is located above the lower protection frame 307. The fixing screw 308 passes through the upper protection frame 306 and cooperates with the lower protection frame 307.

[0041] Based on the second embodiment, please refer to Figure 5 ,in Figure 5 It is a three-dimensional structural diagram of the third embodiment of the present invention.

[0042] The present invention provides a drone for detecting the bottom of a bridge, which also includes a sleeve 301, a connecting rod 302, a power assembly and a protection assembly; the power assembly includes a motor 303, a rotating rod 304 and a fan blade 305; the protection assembly includes an upper protection frame 306, a lower protection frame 307 and a fixing screw 308.

[0043] According to this specific embodiment, the sleeve 301 is arranged in the middle of the two mounting plates 110, and cooperates with one of the electromagnets 117. The connecting rod 302 is arranged in the middle of the two mounting plates 110, and cooperates with the rotating shaft 111, and is sleeved in the middle of the sleeve 301. The power assembly is arranged at one end of the connecting rod 302, and the protection assembly is arranged above the power assembly. Through the setting of the sleeve 301, the sleeve 301 cooperates with the connecting rod 302, so that the connecting rod 302 can adjust the angle. The setting of the connecting rod 302 plays a role in connecting the power assembly. The setting of the power assembly plays a role in driving the device to rise. The setting of the protection assembly plays a role in protecting the power assembly.

[0044] Among them, the motor 303 is fixedly connected to the connecting rod 302 and is located at one end of the connecting rod 302. The rotating rod 304 is arranged at the output end of the motor 303. The fan blade 305 is movably connected to the rotating rod 304 and is located above the rotating rod 304. Through the setting of the motor 303, the motor 303 plays a role in driving the rotating rod 304 to rotate, so that the rotating rod 304 can drive the fan blade 305 to rotate.

[0045] Secondly, the lower protection frame 307 is fixedly connected to the motor 303 and is sleeved on the outside of the lower protection frame 307. The upper protection frame 306 is movably connected to the lower protection frame 307 and is located above the lower protection frame 307. The fixing screw 308 passes through the upper protection frame 306 and cooperates with the lower protection frame 307. The upper protection frame 306 and the lower protection frame 307 cooperate with each other, and then through the fixing screw 308, the fan blades 305 are protected.

[0046] When using a drone for inspecting the bottom of a bridge according to this embodiment, the lower protective shell is sleeved on the outside of the motor 303, the upper protective shell is installed on the lower protective frame 307, and fixed by the fixing screw 308, so as to protect the fan blade 305.

[0047] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A drone for detecting the bottom of a bridge, comprising a shell assembly, multiple lifting mechanisms, multiple mounting assemblies and a detection assembly, wherein the multiple lifting mechanisms cooperate with the multiple mounting assemblies respectively, the multiple mounting assemblies are evenly arranged on the outside of the shell assembly, and the detection assembly is arranged above the shell assembly, characterized in that: Also included are multiple sets of buffer components; Each group of the buffer components includes a block, a first spring, a guide rod, a slide plate, a sleeve and a buffer pad. Multiple groups of the buffer components are evenly arranged below the shell component. The block is arranged below the shell component. One end of the first spring is fixedly connected to the block and is located above the block. The other end of the first spring is fixedly connected to the slide plate and is located above the slide plate. The guide rod is fixedly connected to the slide plate and is located above the slide plate, and passes through the first spring to cooperate with the shell component. The slide plate is movably connected to the sleeve and is arranged on the inner side of the sleeve. The buffer pad is fixedly connected to the sleeve and is located below the sleeve.

2. The drone for detecting the bottom of a bridge according to claim 1, characterized in that: The shell assembly includes a fuselage and a plurality of supporting feet, wherein the plurality of supporting feet are fixedly connected to the fuselage and are evenly arranged below the fuselage, each group of the card blocks are respectively arranged below the plurality of supporting feet, and the plurality of supporting feet respectively cooperate with each group of the guide rods.

3. The drone for detecting the bottom of a bridge according to claim 2, characterized in that: Each group of the mounting components includes two mounting plates and a rotating shaft. The two mounting plates are fixedly connected to the fuselage and are evenly arranged on the outside of the fuselage. The rotating shaft is fixedly connected to the two mounting plates and is arranged in the middle of the two mounting plates, and cooperates with the lifting mechanism.

4. The drone for detecting the bottom of a bridge according to claim 3, characterized in that: The detection assembly includes a rotating unit, multiple groups of positioning units and a probe body, the multiple groups of units are evenly arranged above each group of the mounting assembly, the rotating unit is arranged in the middle of the fuselage, and the probe body is arranged above the rotating unit.

5. The drone for detecting the bottom of a bridge according to claim 4, characterized in that: The rotating unit includes a first shell and a second shell. The first shell has a linear groove, the second shell has an involute groove, the second shell is arranged above the fuselage, and the first shell is arranged above the second shell. The probe body cooperates with the linear groove and the involute groove.

6. The drone for detecting the bottom of a bridge according to claim 5, characterized in that: Each group of the positioning units includes two electromagnets, a permanent magnet and a positioning column. The two electromagnets are respectively arranged above the permanent magnet and outside the positioning column, and cooperate with the fuselage.

7. The drone for detecting the bottom of a bridge according to claim 6, characterized in that: The drone for detecting the bottom of the bridge also includes multiple groups of auxiliary positioning components, each group of the auxiliary positioning components includes a support sleeve, a support rod and a second spring, the support sleeve is fixedly connected to the fuselage and is located on the outside of the fuselage, the support rod is movably connected to the support sleeve and is located in the middle of the support sleeve, and the second spring is arranged on the outside of the support rod and cooperates with the support sleeve.

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