Thermal imaging device and unmanned aerial vehicle

Abstract

The present invention relates to the field of thermal imaging detection technology, and in particular to a thermal imaging device and an unmanned aerial vehicle, comprising: a fixed bracket, rotatably provided with a rotating central axis, the rotating central axis rotates with the horizontal direction as the rotating axis; a lens, fixedly provided at one end of the rotating central axis, and the lens extends to the end away from the rotating central axis; a light-transmitting ring, provided at the end of the fixed bracket close to the lens, and the lens is located inside the light-transmitting ring; and a driving member, driving the rotating central axis to rotate. In the present invention, the thermal imaging device is fixed on the unmanned aerial vehicle, the rotating central axis is provided on the fixed bracket, the thermal imaging lens is fixedly provided on the rotating central axis, and extends to the end away from the rotating central axis, so that when the rotating central axis rotates, the lens can move circumferentially, and when the unmanned aerial vehicle remains stationary, thermal imaging can be taken at multiple locations of the porcelain insulator, without the need to adjust the positions of the unmanned aerial vehicle in multiple locations, thereby greatly improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of thermal imaging detection technology, and in particular to a thermal imaging device and an unmanned aerial vehicle. Background Art

[0002] Porcelain insulators are important electrical components with a wide range of uses and large quantities in power systems. They support conductors and isolate currents. Due to certain process defects in the production and manufacturing process of porcelain insulators, their internal structure is not dense, and microcracks and small pores are easily formed. Microcracks and small pores make the internal stress distribution of the insulator uneven, resulting in excessive stress in some parts and too little stress in other parts.

[0003] When porcelain insulators are put into operation, they are affected by the external ambient temperature. Due to uneven stress, the thermal expansion and contraction of each part are uneven, and eventually the internal cracks and pores continue to increase, resulting in natural degradation. In addition, porcelain insulators must withstand the test of strong electric fields and large mechanical loads during operation. When porcelain insulators are subjected to strong electric fields, discharge, light emission, and chemical changes in the insulating materials will occur at the head and dirty parts of the insulators. These phenomena will accelerate the degradation of porcelain insulators, and even directly break down the insulators when the electric field is too large. The mechanical stress on porcelain insulators will make the internal stress unevenness more serious, increase the gap of the insulator cracks, make the internal stress unevenness more serious, increase the gap of the insulator cracks, and make the internal cracks directly evolve into external cracks, accelerating degradation. Over time, porcelain insulators continue to deteriorate and deteriorate, resulting in smaller insulating electrons, increasing leakage current, and weakening insulation performance, eventually becoming zero-value insulators.

[0004] In the prior art, since porcelain insulators are usually located at a high position, manual inspection is time-consuming and laborious, so a method of inspecting porcelain insulators by using a drone equipped with a thermal imaging device has been developed. However, during the inspection of porcelain insulators, it is necessary to take photos of more than one position of the porcelain insulator, so it is necessary to operate the drone to circle around several positions of the porcelain insulator for inspection, which has low inspection efficiency and high requirements on the operator.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0006] The present invention provides a thermal imaging device and a drone, thereby effectively solving the problems in the background technology.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: a thermal imaging device and a drone, comprising:

[0008] A fixed bracket, wherein a rotating central axis is rotatably provided on the fixed bracket, and the rotating central axis rotates with the horizontal direction as the rotation axis;

[0009] A lens, wherein the lens is fixedly disposed at one end of the rotating central axis and extends toward an end away from the rotating central axis;

[0010] A light-transmitting ring, which is arranged at one end of the fixing bracket close to the lens, and the lens is located inside the light-transmitting ring;

[0011] A driving member drives the rotating central shaft to rotate.

[0012] Furthermore, the fixed bracket is provided with a main conductor at the end away from the lens, the main conductor is a ring-shaped structure, a plurality of unit components are provided on the main conductor, and the plurality of unit components extend into the main conductor, the rotating central axis is provided with a contact assembly at the end away from the lens, the contact assembly rotates with the rotating central axis, and when the contact assembly rotates to contact one of the unit components, the lens is electrically connected to the main conductor.

[0013] Furthermore, a first conductor and a second conductor are disposed in the rotating central axis, and the first conductor and the second conductor are electrically connected to the lens respectively.

[0014] Further, the contact assembly includes a first contact and a second contact, the first contact and the second contact extend from one end of the rotating center axis away from the rotating center axis, the first contact and the second contact include at least a gap between the first contact and the second contact in the direction of extension of the length of the rotating center axis, the first contact is electrically connected to the first conductor, and the second contact is electrically connected to the second conductor.

[0015] Furthermore, the unit element comprises:

[0016] Two lead wires, the two lead wires are respectively led out from the main conductor;

[0017] A connecting piece, wherein the connecting piece is provided with two ends, and the two ends are electrically connected to the two leads respectively;

[0018] Wherein, when the contact assembly rotates to contact the connecting piece, the first contact and the second contact are in contact with the two end portions respectively.

[0019] Furthermore, the first contact includes a metal spring, and the second contact is a plate-shaped structure.

[0020] Furthermore, the unit element is slidably disposed on the fixing bracket, and when the contact assembly rotates to the unit element, it presses the unit element to push the unit element toward an end close to the lens;

[0021] The unit element is provided with a reset structure, and the reset structure resets the unit element.

[0022] Furthermore, the unit element further comprises a toothed structure, a transmission mechanism is arranged on the fixed bracket, when the unit element slides, the toothed structure cooperates with the transmission mechanism, the fixed bracket is rotatably provided with an annular structure at one end close to the lens, a gear portion is arranged on the outer diameter of the annular structure, and the transmission mechanism drives the annular structure to rotate;

[0023] The light-transmitting ring is slidably arranged on the annular cylinder structure, and a pushing structure is respectively arranged on the light-transmitting ring and the annular cylinder structure. When the annular cylinder structure rotates, the pushing structure pushes the light-transmitting ring to move along the extension direction of the length of the rotating central axis, so as to adjust the distance between the light-transmitting ring and the lens.

[0024] Furthermore, the driving structure comprises:

[0025] An inner inclined plate, the inner inclined plate is arranged on the inner wall of the annular cylinder structure, and the inner inclined plate is arranged obliquely;

[0026] A sliding rod, the sliding rod passing through the fixing bracket, the light-transmitting ring being fixedly arranged at one end of the sliding rod;

[0027] An inner plate, the inner plate is fixedly disposed on the light-transmitting ring and is located at the inner wall of the annular tube structure;

[0028] A reset spring, which is arranged at the other end of the slide rod to reset the light-transmitting ring;

[0029] When the annular cylinder structure rotates, the inner inclined plate and the inner plate cooperate with each other to push the light-transmitting ring.

[0030] Furthermore, the transmission mechanism comprises:

[0031] A first gear, the first gear is rotatably arranged and cooperates with the toothed structure of the single element;

[0032] A first transmission rod, one end of which is fixedly connected to the first gear and rotates with the first gear, and the other end of the first transmission rod is provided with a first bevel gear;

[0033] A second transmission rod, the second transmission rod is parallel to the length extension direction of the rotating central axis, a second bevel gear is arranged at one end of the second transmission rod, the first bevel gear and the second bevel gear cooperate with each other, and a cylinder gear is arranged at the other end of the second transmission rod, and the cylinder gear cooperates with the gear part.

[0034] The present invention also includes a drone, comprising the thermal imaging device as described above.

[0035] The beneficial effects of the present invention are as follows: the present invention fixes the thermal imaging device on the drone by setting a fixed bracket, a rotating central axis is set on the fixed bracket, and the thermal imaging lens is fixedly set on the rotating central axis and extends to one end away from the rotating central axis, so that when the rotating central axis rotates, the lens can move circumferentially. When the drone remains stationary, thermal imaging photos can be taken at multiple locations of the porcelain insulator without adjusting the drone at multiple locations, thereby greatly improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a schematic diagram of the structure of the thermal imaging device of the present invention;

[0038] Figure 2 for Figure 1 A structural diagram showing another angle and retaining only one unit element;

[0039] Figure 3 It is a schematic diagram of the structure of the lens and the light-transmitting ring;

[0040] Figure 4 It is a structural diagram of the propulsion mechanism;

[0041] Figure 5 is a schematic diagram of the structure of the contact assembly;

[0042] Figure 6 It is a structural schematic diagram of a unit component and a transmission mechanism;

[0043] Figure 7 It is a structural schematic diagram of a single element;

[0044] Figure 8 for Figure 6 Exploded view of the structural diagram;

[0045] Fig. 9 This is a schematic diagram of the structure of the drone. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] like Figures 1 to 8 Shown: A thermal imaging device, comprising:

[0050] A fixed bracket 1, on which a rotating central axis 11 is rotatably provided, and the rotating central axis 11 rotates with the horizontal direction as the rotation axis;

[0051] The lens 2 is fixedly disposed at one end of the rotating central axis 11, and the lens 2 extends toward the end away from the rotating central axis 11;

[0052] A light-transmitting ring 3 is arranged at one end of the fixing bracket 1 close to the lens 2, and the lens 2 is located inside the light-transmitting ring 3;

[0053] The driving member 4 drives the rotating central shaft 11 to rotate.

[0054] By setting a fixed bracket 1, the thermal imaging device is fixed on the drone, and a rotating central axis 11 is set on the fixed bracket 1. The thermal imaging lens 2 is fixedly set on the rotating central axis 11 and extends to one end away from the rotating central axis 11, so that when the rotating central axis 11 rotates, the lens 2 can move circumferentially. When the drone remains stationary, thermal imaging photos can be taken at multiple locations of the porcelain insulator without adjusting the drone at multiple locations, thereby greatly improving the detection efficiency.

[0055] In this embodiment, a main conductor 12 is provided at the end of the fixed bracket 1 away from the lens 2. The main conductor 12 is a ring-shaped structure. A plurality of unit components 13 are provided on the main conductor 12. The plurality of unit components 13 extend into the main conductor 12. A contact assembly 14 is provided at the end of the rotating central axis 11 away from the lens 2. The contact assembly 14 rotates with the rotating central axis 11. When the contact assembly 14 rotates to contact with one of the unit components 13, the lens 2 is electrically connected to the main conductor 12.

[0056] By setting a main conductor 12, the main conductor 12 is led out from the drone and powered. The main conductor 12 includes two wires, which are respectively connected to the two poles of the power supply. The main conductor 12 is a ring structure. A plurality of unit elements 13 are set on the main conductor 12. A contact assembly 14 is set on the rotating central axis 11. When the rotating central axis 11 rotates, the contact assembly 14 will continuously contact one of the unit elements 13. Only when the contact assembly 14 contacts one of the unit elements 13 can it be connected to the main conductor 12, so as to power the lens 2, thereby reducing the power consumption of the thermal imaging device and improving the detection time of thermal imaging. There is no need to frequently replace the battery of the drone. Only by setting the position of the unit element 13 in advance, can you take pictures at several preset positions in the circumferential direction.

[0057] The first conductor 111 and the second conductor 112 are disposed in the rotating central axis 11 , and the first conductor 111 and the second conductor 112 are electrically connected to the lens 2 respectively.

[0058] As a preferred embodiment of the above embodiment, the contact assembly 14 includes a first contact 141 and a second contact 142, and the first contact 141 and the second contact 142 extend from the rotation center axis 11 to an end away from the rotation center axis 11, and the first contact 141 and the second contact 142 include at least a gap between them in the length extension direction of the rotation center axis 11, and the first contact 141 is electrically connected to the first conductor 111, and the second contact 142 is electrically connected to the second conductor 112.

[0059] By spacing a distance between the first contact point 141 and the second contact point 142, the two contact points are prevented from contacting each other, and it is also ensured that no false contact occurs when contacting the unit element 13.

[0060] In this embodiment, the unit element 13 includes:

[0061] Two lead wires 131, the two lead wires 131 are respectively led out from the main conductor 12;

[0062] A connecting piece 132, the connecting piece 132 is provided with two ends, and the two ends are electrically connected to the two leads 131 respectively;

[0063] When the contact assembly 14 rotates to contact the connecting piece 132 , the first contact 141 and the second contact 142 are in contact with the two ends respectively.

[0064] As a preference of the above embodiment, the first contact 141 includes a metal spring 143 , and the second contact 142 is a plate-shaped structure 144 .

[0065] In this embodiment, the unit element 13 is slidably disposed on the fixed bracket 1, and when the contact assembly 14 rotates to the unit element 13, it presses the unit element 13 and pushes the unit element 13 toward the end close to the lens 2;

[0066] The unit element 13 is provided with a reset structure 133 , and the reset structure 133 resets the unit element 13 .

[0067] The unit element 13 further includes a toothed structure 134, and a transmission mechanism 15 is provided on the fixed bracket 1. When the unit element 13 slides, the toothed structure 134 cooperates with the transmission mechanism 15. The fixed bracket 1 is rotatably provided with an annular structure 16 at one end close to the lens 2. The outer diameter of the annular structure 16 is provided with a gear part, and the transmission mechanism 15 drives the annular structure 16 to rotate.

[0068] The light-transmitting ring 3 is slidably arranged on the annular cylinder structure 16. A pushing structure 17 is respectively arranged on the light-transmitting ring 3 and the annular cylinder structure 16. When the annular cylinder structure 16 rotates, the pushing structure 17 pushes the light-transmitting ring 3 to move along the length extension direction of the rotating central axis 11 to adjust the distance between the light-transmitting ring 3 and the lens 2.

[0069] By slidingly setting the unit element 13, and providing a toothed structure 134 on the unit element 13, and providing a transmission mechanism 15 on the fixed bracket 1, the linear motion of the unit element 13 is transmitted to the rotation of the annular tube structure 16, so that when the contact assembly 14 rotates to the unit element 13, the unit element 13 can be pushed toward the end close to the lens 2 to change the distance between the light-transmitting ring 3 and the lens 2. At this time, the lens 2 is powered on, so that the imaging focus can be changed, more abundant information can be collected, and the detection quality can be improved.

[0070] In this embodiment, the pushing structure 17 includes:

[0071] An inner inclined plate 171, which is disposed on the inner wall of the annular structure 16, and is inclined;

[0072] A slide rod, the slide rod passes through the fixed bracket 1, and the light-transmitting ring 3 is fixedly arranged at one end of the slide rod;

[0073] The inner plate 173 is fixedly disposed on the light-transmitting ring 3 and is located at the inner wall of the annular tube structure 16;

[0074] A reset spring 174, which is disposed at the other end of the slide bar to reset the light-transmitting ring 3;

[0075] When the annular cylinder structure 16 rotates, the inner inclined plate 171 and the inner plate 173 cooperate with each other to push the light-transmitting ring 3 .

[0076] As a preferred embodiment of the above, the transmission mechanism 15 includes:

[0077] A first gear 151, the first gear 151 is rotatably arranged and cooperates with the toothed structure 134 of the unit element 13;

[0078] A first transmission rod 152, one end of which is fixedly connected to the first gear 151 and rotates with the first gear 151, and the other end of the first transmission rod 152 is provided with a first bevel gear 153;

[0079] The second transmission rod 154 is parallel to the length extension direction of the rotating central axis 11, and a second bevel gear 155 is provided at one end of the second transmission rod 154, and the first bevel gear 153 and the second bevel gear 155 cooperate with each other. A cylinder gear 156 is provided at the other end of the second transmission rod 154, and the cylinder gear 156 cooperates with the gear part.

[0080] like Fig. 9 As shown, this embodiment also includes a drone, including the thermal imaging device as described above.

[0081] The drone supplies power to the thermal imaging device and drives the driving member 4 to move. The drone is provided with a signal transmission device that can transmit the thermal imaging information to a ground receiving end, and the ground receiving end can control the driving member 4.

[0082] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A thermal imaging device, characterized in that: include: A fixed bracket, wherein a rotating central axis is rotatably provided on the fixed bracket, and the rotating central axis rotates with the horizontal direction as the rotation axis; A lens, wherein the lens is fixedly disposed at one end of the rotating central axis and extends toward an end away from the rotating central axis; A light-transmitting ring, which is arranged at one end of the fixing bracket close to the lens, and the lens is located inside the light-transmitting ring; A driving member, wherein the driving member drives the rotating central shaft to rotate; The fixed bracket is provided with a main conductor at the end away from the lens, the main conductor is a ring-shaped structure, a plurality of unit components are provided on the main conductor, and the plurality of unit components extend into the main conductor. The rotating central axis is provided with a contact assembly at the end away from the lens, the contact assembly rotates with the rotating central axis, and when the contact assembly rotates to contact one of the unit components, the lens is electrically connected to the main conductor.

2. The thermal imaging device according to claim 1, characterized in that: A first conductor and a second conductor are arranged in the rotating central axis, and the first conductor and the second conductor are electrically connected to the lens respectively.

3. The thermal imaging device according to claim 2, characterized in that: The contact assembly includes a first contact and a second contact, wherein the first contact and the second contact extend from one end of the rotation center axis away from the rotation center axis, the first contact and the second contact include at least a gap between them in the direction of the length extension of the rotation center axis, the first contact is electrically connected to the first conductor, and the second contact is electrically connected to the second conductor.

4. The thermal imaging device according to claim 3, characterized in that: The unit element comprises: Two lead wires, the two lead wires are respectively led out from the main conductor; A connecting piece, wherein the connecting piece is provided with two ends, and the two ends are electrically connected to the two leads respectively; Wherein, when the contact assembly rotates to contact the connecting piece, the first contact and the second contact are in contact with the two end portions respectively.

5. The thermal imaging device according to claim 3, characterized in that: The first contact includes a metal spring, and the second contact is a plate-shaped structure.

6. The thermal imaging device according to claim 3, characterized in that: The unit element is slidably disposed on the fixed bracket, and when the contact assembly rotates to the unit element, it presses the unit element to push the unit element toward an end close to the lens; The unit element is provided with a reset structure, and the reset structure resets the unit element.

7. The thermal imaging device according to claim 6, characterized in that: The unit element further comprises a toothed structure, a transmission mechanism is arranged on the fixed bracket, and when the unit element slides, the toothed structure cooperates with the transmission mechanism, and the fixed bracket is rotatably provided with an annular structure at one end close to the lens, a gear part is arranged on the outer diameter of the annular structure, and the transmission mechanism drives the annular structure to rotate; The light-transmitting ring is slidably arranged on the annular cylinder structure, and a pushing structure is respectively arranged on the light-transmitting ring and the annular cylinder structure. When the annular cylinder structure rotates, the pushing structure pushes the light-transmitting ring to move along the extension direction of the length of the rotating central axis, so as to adjust the distance between the light-transmitting ring and the lens.

8. The thermal imaging device according to claim 7, characterized in that: The propulsion structure comprises: An inner inclined plate, the inner inclined plate is arranged on the inner wall of the annular cylinder structure, and the inner inclined plate is arranged obliquely; A sliding rod, the sliding rod passing through the fixing bracket, the light-transmitting ring being fixedly arranged at one end of the sliding rod; An inner plate, the inner plate is fixedly disposed on the light-transmitting ring and is located at the inner wall of the annular tube structure; A reset spring, which is arranged at the other end of the slide rod to reset the light-transmitting ring; When the annular cylinder structure rotates, the inner inclined plate and the inner plate cooperate with each other to push the light-transmitting ring.

9. The thermal imaging device according to claim 7, characterized in that: The transmission mechanism comprises: A first gear, the first gear is rotatably arranged and cooperates with the toothed structure of the single element; A first transmission rod, one end of which is fixedly connected to the first gear and rotates with the first gear, and the other end of the first transmission rod is provided with a first bevel gear; A second transmission rod, the second transmission rod is parallel to the length extension direction of the rotating central axis, a second bevel gear is arranged at one end of the second transmission rod, the first bevel gear and the second bevel gear cooperate with each other, and a cylinder gear is arranged at the other end of the second transmission rod, and the cylinder gear cooperates with the gear part.

10. A drone, characterized in that: Comprising the thermal imaging device as claimed in any one of claims 1 to 9.

Images