Unmanned aerial vehicle for limited space inspection of thermal power plant

Abstract

The utility model discloses an unmanned aerial vehicle for limited space inspection of a thermal power plant, which comprises an unmanned aerial vehicle body and vehicle arms, a connecting plate is fixedly connected to the center of the bottom end of the unmanned aerial vehicle body, a first motor is fixedly connected to one side of the connecting plate, a rotating frame is fixedly connected to the output end of the first motor, and a second motor is fixedly connected in the rotating frame. A monitoring camera is fixedly connected to the output end of the second motor, supporting plates are fixedly connected to the four sides of the bottom end of the unmanned aerial vehicle body, third motors are fixedly connected to the sides, away from each other, of the two supporting plates, rotating rods are fixedly connected to the output ends of the third motors, and driving gears are fixedly connected to the rotating rods; according to the unmanned aerial vehicle, the supporting plate is arranged on the bottom side of the unmanned aerial vehicle, the third motor drives the driving gear and the auxiliary gear to rotate, then the U-shaped supporting frame rotates to be horizontal with the unmanned aerial vehicle body, and meanwhile one side of the U-shaped supporting frame is clamped into the clamping sleeve, so that the U-shaped supporting frame does not block the view angle of the monitoring camera any more; and the monitoring view angle of unmanned aerial vehicle inspection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle inspection technical field, concretely relates to a kind of unmanned aerial vehicle for limited space inspection of thermal power plant. BACKGROUND

[0002] In thermal power plant, due to complex environment and dangerous factors such as high temperature and high pressure, the traditional manual inspection method has many challenges, so the limited space inspection by unmanned aerial vehicle becomes an efficient, safe and accurate solution, which requires the unmanned aerial vehicle to have high-definition camera, thermal imaging camera, control equipment and software, and sensor equipment to remotely and accurately inspect various equipment in the power plant in advance, and the camera has the characteristics of horizontal and vertical rotation.

[0003] In the actual use process of the limited space inspection unmanned aerial vehicle, multiple camera devices need to be carried, and usually to maintain the lightweight feature of the structure, multiple camera structures are detachably installed on the bottom side of the unmanned aerial vehicle, and when the camera needs to be rotated, it will be affected by the unmanned aerial vehicle landing gear, so that the camera view is limited.

[0004] According to the "thermal power plant unmanned aerial vehicle inspection system" of Chinese patent publication No. CN213735549U, the temperature and operation of each device in the field can be transmitted to the ground monitoring system in real time through the infrared thermal imaging camera, which is convenient for the operation personnel to timely master the field operation situation, greatly improves the inspection efficiency and reliability, and the visible light high-definition lens based on big data image recognition technology can monitor the field personnel situation, such as personnel intrusion into production area, field operation personnel safety helmet, work clothes and other dressing situation, and smoking or crossing forbidden area and other violations, the utility model can also perform work inspection during the operation process of the device with dangerous factors, and is not affected by other devices and areas, can timely master the operation situation of the device, cable and pipeline, and does not need personnel on site, and there is no longer safety hazard, and in this process, the turning monitoring of the bottom camera of the unmanned aerial vehicle is affected by the unmanned aerial vehicle landing gear, which limits the camera view.

[0005] Therefore, an unmanned aerial vehicle for limited space inspection of thermal power plant is proposed to solve the problem that the turning monitoring of the bottom camera of the unmanned aerial vehicle is affected by the unmanned aerial vehicle landing gear, which limits the camera view. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is that the turning monitoring of the bottom camera of the unmanned aerial vehicle is affected by the unmanned aerial vehicle landing gear, which limits the camera view, so an unmanned aerial vehicle for limited space inspection of thermal power plant is proposed.

[0007] The utility model discloses a technical scheme that solves technical problems is: a kind of unmanned aerial vehicle for limited space inspection of thermal power plant, including unmanned aerial vehicle body and machine arm, the first motor is fixedly connected with in unmanned aerial vehicle body bottom end center, the first motor output is fixedly connected with link frame, the link frame one side is fixedly connected with second motor, the second motor output is fixedly connected with protrusion, the protrusion bottom end is fixedly connected with monitoring camera, unmanned aerial vehicle body bottom end four sides are all fixedly connected with support plate, the side of the two support plates away from each other is fixedly connected with third motor, the third motor output is fixedly connected with rotating rod, rotating rod is fixedly connected with driving gear, the position of two driving gears is opposite, the driving gear bottom side is engaged with auxiliary gear, the auxiliary gear is rotatably connected support plate by pivot, the auxiliary gear one side is fixedly connected with U-shaped support frame.

[0008] As a preferred technical scheme of the utility model, the bottom side of the machine arm is fixedly connected with a support rod, and the bottom end of the support rod is fixedly connected with a clamping sleeve. By arranging the spring telescopic rod and the clamping sleeve, the U-shaped support frame can be limited when rotating upward.

[0009] As a preferred technical scheme of the utility model, a through hole is formed in the clamping sleeve, and a spring telescopic rod is inserted into the through hole. By arranging the spring telescopic rod, the U-shaped support frame can be prevented from moving downward under the action of gravity.

[0010] As a preferred technical scheme of the utility model, a reinforcing plate is fixedly connected to the U-shaped support frame, and the reinforcing plate is made of a ferrous material. By arranging the reinforcing plate, the rigidity of the U-shaped support frame can be increased.

[0011] As a preferred technical scheme of the utility model, an abutment block is arranged on one side of the reinforcing plate, and the abutment block is made of a magnetic material. A spring rod is fixedly connected to one side of the abutment block, and the spring rod is arranged on both sides of the monitoring camera. By arranging the spring rod and the abutment block, the reinforcing plate can be supported.

[0012] As a preferred technical scheme of the utility model, a contact sensor is fixedly connected in the clamping sleeve, and the contact sensor corresponds to one side of the U-shaped support frame. By arranging the contact sensor, the state of the U-shaped support frame can be monitored when the unmanned aerial vehicle is in the air.

[0013] As a preferred technical scheme of the utility model, a buffer pad is fixedly connected to the bottom side of the U-shaped support frame, and the buffer pad is made of rubber. By arranging the buffer pad, the friction can be increased.

[0014] As a preferred technical scheme of the utility model, the clamping groove is arranged on the connecting block, and the clamping groove is in contact with the clamping strip on one side, and the clamping strip is fixedly connected to one side of the reinforcing plate, and the clamping strip cooperates with the clamping groove, so that the stability of the connection is improved.

[0015] As a preferred technical scheme of the utility model, the bottom side of the connecting frame is in semicircular structure, the supporting ball is in contact with the bottom side of the connecting frame, and the supporting ball is rotatably embedded on the upper side of the monitoring camera, so that the friction of the monitoring camera during rotation is reduced.

[0016] As a preferred technical scheme of the utility model, the stable rod is fixedly connected to the upper end of the connecting frame, and the sliding ball is rotatably embedded on the upper end of the stable rod, so that the stable rotation of the monitoring camera is facilitated.

[0017] The utility model has the advantages that the supporting plate is arranged on the bottom side of the unmanned aerial vehicle, the third motor drives the driving gear and the auxiliary gear to rotate, the U-shaped support frame is rotated to be horizontal with the unmanned aerial vehicle body, the U-shaped support frame is clamped into the sleeve on one side, the visual angle of the monitoring camera is not blocked by the U-shaped support frame, and the monitoring visual angle of the unmanned aerial vehicle during inspection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a side view sectional structure schematic diagram of the unmanned aerial vehicle for limited space inspection of the thermal power plant according to a preferred embodiment of the utility model;

[0019] Figure 2 It is an auxiliary gear three-dimensional structure schematic diagram of the unmanned aerial vehicle for limited space inspection of the thermal power plant according to a preferred embodiment of the utility model;

[0020] Figure 3 It is an A place enlarged structure schematic diagram of the unmanned aerial vehicle for limited space inspection of the thermal power plant according to a preferred embodiment of the utility model;

[0021] Figure 4 It is a connecting frame three-dimensional structure schematic diagram of the unmanned aerial vehicle for limited space inspection of the thermal power plant according to a preferred embodiment of the utility model.

[0022] The figure mark explanation: 1, unmanned aerial vehicle body; 2, arm; 3, connecting frame; 4, protrusion; 5, monitoring camera; 6, supporting plate; 7, rotating rod; 8, driving gear; 9, auxiliary gear; 10, U-shaped support frame; 11, supporting rod; 12, sleeve; 13, spring telescopic rod; 14, reinforcing plate; 15, spring rod; 16, connecting block; 17, clamping strip; 18, contact sensor; 19, buffer pad; 20, sliding ball; 21, supporting ball; 22, stable rod. DETAILED DESCRIPTION

[0023] The utility model makes further illustration in combination with the drawings.

[0024] Please combine with reference to Figures 1-4 As shown in one kind for limited space of thermal power plant to be patrolled unmanned aerial vehicle, including unmanned aerial vehicle body 1 and arm 2, unmanned aerial vehicle body 1 bottom center fixedly connected with first motor, first motor output fixedly connected with the link frame 3, the link frame 3 one side fixedly connected with second motor, second motor output fixedly connected with the protruding 4, protruding 4 bottom fixedly connected with monitoring camera 5, through the rotation of first motor and second motor drive link frame 3 and protruding 4 rotation, so that monitoring camera 5 have the effect of rotation, unmanned aerial vehicle body 1 bottom four sides are all fixedly connected with support plate 6, wherein two support plate 6 far away one side fixedly connected with third motor, third motor drive connecting rod 7 and drive gear 8 rotation, can make auxiliary gear 9 and U-shaped support frame 10 rotation, so that U-shaped support frame 10 with unmanned aerial vehicle body 1 keep horizontal, so as to avoid the problem of U-shaped support frame 10 for monitoring camera 5's angle of view block, third motor output fixedly connected with connecting rod 7, connecting rod 7 is fixedly connected with drive gear 8, the position of two drive gear 8 is opposite, drive gear 8 bottom side is engaged with auxiliary gear 9, auxiliary gear 9 is rotatably connected support plate 6 through the shaft, auxiliary gear 9 one side fixedly connected with U-shaped support frame 10.

[0025] Wherein, the sleeve 12 with U-shaped support frame 10 one side corresponds, through hole is located in the sleeve 12, the sleeve 12 is fixedly connected at support rod 11 bottom, support rod 11 is fixedly connected at arm 2 bottom side, through the setting spring telescopic rod 13 when U-shaped support frame 10 enters into the sleeve 12, can provide limit, keep the stability of U-shaped support frame 10.

[0026] Wherein, the sleeve 12 is set with through hole, and the spring telescopic rod 13 is inserted in the through hole.

[0027] Wherein, the reinforcing plate 14 is fixedly connected on the U-shaped support frame 10, the reinforcing plate 14 is composed of iron-containing material, by setting the reinforcing plate 14, the weight of the U-shaped support frame 10 is increased, and the rigidity is improved.

[0028] Wherein, the spring rod 15 is fixedly connected on both sides of the monitoring camera 5, the spring rod 15 is fixedly connected on one side of the link block 16, the link block 16 is in contact with one side of the reinforcing plate 14, the link block 16 is composed of magnetic material, by setting the link block 16 cooperated with the spring rod 15, when the U-shaped support frame 10 is in contact with the ground, the reverse force is provided, and the U-shaped support frame 10 is stably supported on the unmanned aerial vehicle body 1.

[0029] Wherein, the contact sensor 18 is fixedly connected in the sleeve 12, and the contact sensor 18 corresponds to one side of the U-shaped support frame 10.

[0030] The U-shaped support frame 10 is fixedly connected with a buffer pad 19 at the bottom side.

[0031] The reinforcing plate 14 is fixedly connected with a clamping strip 17 at one side, the clamping strip 17 is in contact with a clamping groove, and the clamping groove is located on the connecting block 16.

[0032] The bottom side of the connecting frame 3 is in a semicircular structure, and the connecting frame 3 is in contact with a supporting ball 21 at the bottom side.

[0033] The connecting frame 3 is fixedly connected with a stabilizing rod 22 at the upper end, and the stabilizing rod 22 is rotatably embedded with a sliding ball 20 at the upper end.

[0034] The working principle is as follows: when the unmanned aerial vehicle performs the inspection and detection task, the propellers on the unmanned aerial vehicle body 1 and the arm 2 rotate, the unmanned aerial vehicle body 1 ascends, the third motor drives the rotating rod 7 and the driving gear 8 to rotate, then the auxiliary gear 9 rotates, and the U-shaped support frame 10 rotates to be horizontal with the unmanned aerial vehicle body 1, then the U-shaped support frame 10 is clamped into the clamping sleeve 12 at one side, then the spring telescopic rod 13 provides limiting, at this time, the rotation of the monitoring camera 5 is not limited, the first motor and the second motor can drive the monitoring camera 5 to rotate freely, and the visual angle effect is improved, when the unmanned aerial vehicle finishes the inspection task, the third motor drives the U-shaped support frame 10 to rotate, and the reinforcing plate 14 on the U-shaped support frame 10 contacts the connecting block 16, the connecting block 16 adsorbs the reinforcing plate 14, the clamping groove and the clamping strip 17 are in adaptive contact, and thus stable support is provided.

[0035] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

[0036] Other parts not described in the present application are all prior art, and therefore will not be described here.

[0037] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drone for inspecting confined spaces in thermal power plants, comprising a drone body (1) and an arm (2), characterized in that, A first motor is fixedly connected to the center of the bottom end of the unmanned aerial vehicle (1). A connecting frame (3) is fixedly connected to the output end of the first motor. A second motor is fixedly connected to one side of the connecting frame (3). A protrusion (4) is fixedly connected to the output end of the second motor. A monitoring camera (5) is fixedly connected to the bottom end of the protrusion (4). Support plates (6) are fixedly connected to all four sides of the bottom end of the unmanned aerial vehicle (1). A third motor is fixedly connected to the side of the two support plates (6) that are far apart. A rotating rod (7) is fixedly connected to the output end of the third motor. A drive gear (8) is fixedly connected to the rotating rod (7). The two drive gears (8) are in opposite positions. An auxiliary gear (9) meshes with the bottom side of the drive gear (8). The auxiliary gear (9) is rotatably connected to the support plate (6) through a rotating shaft. A U-shaped support frame (10) is fixedly connected to one side of the auxiliary gear (9).

2. The UAV for confined space inspection in a thermal power plant as described in claim 1, characterized in that, A support rod (11) is fixedly connected to the bottom side of the arm (2), and a retainer (12) is fixedly connected to the bottom end of the support rod (11). The retainer (12) corresponds to one side of the U-shaped support frame (10).

3. The UAV for confined space inspection in a thermal power plant as described in claim 2, characterized in that, The sleeve (12) has a through hole, and a spring telescopic rod (13) is inserted into the through hole.

4. The UAV for confined space inspection in a thermal power plant as described in claim 2, characterized in that, A reinforcing plate (14) is fixedly connected to the U-shaped support frame (10), and the reinforcing plate (14) is made of iron-containing material.

5. The UAV for confined space inspection in a thermal power plant as described in claim 4, characterized in that, The reinforcing plate (14) has a connecting block (16) in contact with one side. The connecting block (16) is made of a magnetic material. A spring rod (15) is fixedly connected to one side of the connecting block (16). The spring rod (15) is fixedly connected to both sides of the monitoring camera (5).

6. The UAV for confined space inspection in a thermal power plant as described in claim 2, characterized in that, A contact sensor (18) is fixedly connected inside the sleeve (12), and the contact sensor (18) corresponds to one side of the U-shaped support frame (10).

7. The UAV for confined space inspection in a thermal power plant as described in claim 6, characterized in that, The bottom side of the U-shaped support frame (10) is fixedly connected to a buffer pad (19), which is made of rubber.

8. The UAV for confined space inspection in a thermal power plant as described in claim 5, characterized in that, The connecting block (16) has a slot and a strip (17) is in contact with one side of the slot. The strip (17) is fixedly connected to one side of the reinforcing plate (14).

9. The UAV for confined space inspection in a thermal power plant as described in claim 1, characterized in that, The bottom side of the connecting frame (3) is semi-circular, and the bottom side of the connecting frame (3) is in contact with a support ball (21). The support ball (21) is rotatably embedded on the upper side of the monitoring camera (5).

10. The UAV for confined space inspection in a thermal power plant as described in claim 9, characterized in that, A stabilizing rod (22) is fixedly connected to the upper end of the connecting frame (3), and a sliding ball (20) is rotatably embedded in the upper end of the stabilizing rod (22).

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