Laser scanning holder

Abstract

The utility model relates to a laser scanning cradle head, and belongs to the field of laser scanning and natural gas leakage detection.The laser scanning cradle head comprises a cradle head body, a lifting mechanism is arranged on the upper surface of the cradle head body, a rotating mechanism is arranged on the outer side of the lifting mechanism, and the lifting mechanism comprises an electric push rod, a rotating piece, a supporting rod, a fixing table and a laser scanner; a mounting groove is formed in the upper surface of the holder, the electric push rod is fixed to the inner bottom wall of the mounting groove, and the rotating piece is arranged on the outer side of an output shaft of the electric push rod. According to the laser scanning cradle head, through the design of the laser scanning cradle head, all-directional and dead-corner-free scanning of a target area is achieved, the detection range is effectively expanded, and the detection blind area is reduced; auxiliary means such as an infrared sensor and a wireless communication module are combined, so that the sensitivity and the accuracy of detection are improved, and meanwhile, real-time transmission and remote monitoring of data are realized; and by additionally arranging a sensor and optimizing a scanning strategy, the detection precision and the emergency response efficiency are further improved.

Description

Technical Field

[0001] This application relates to the technical fields of laser scanning and natural gas leakage detection, and specifically provides a laser scanning pan-tilt head. Background Art

[0002] Natural gas leakage detection is a very important safety measure, which can effectively prevent the occurrence of dangerous accidents such as fires and explosions. Usually, leak detection instruments are used to regularly inspect the spatial environment where natural gas is used.

[0003] For example, a detection device for a natural gas leakage detection probe disclosed in Chinese Patent Publication No. (CN213482164U), especially related to the technical field of detection devices, includes a grip. An air inlet nozzle is connected to the lower end of the grip, and a telescopic rod is arranged at the upper end of the grip. The telescopic rod is composed of several hollow rods, and the hollow rods are vertically and evenly arranged from bottom to top. For this detection device for a natural gas leakage detection probe, through the grip, air inlet nozzle, telescopic rod and detection cover, it is not necessary for multiple people to cooperate in climbing for detection. It can quickly and conveniently detect whether the natural gas leakage detection probe installed in a tall space is effective. The overall structure of the device is small and portable, the structure is simple, and the use is easy. It can reduce the labor intensity of detecting whether the natural gas leakage detection probe installed in a tall space is effective, and has good application value and popularization and application prospects, so as to solve the problems that multiple people need to cooperate in climbing for detection when detecting the natural gas leakage detection probe at present, being affected by the on-site environment, the detection process is time-consuming and laborious, and there is a safety hazard of falling from a height.

[0004] However, there is still a problem of poor accuracy in natural gas leakage detection in the existing technology disclosed in the above patent. At present, natural gas leakage detection mainly relies on means such as manual inspection and fixed sensor monitoring. Although these traditional methods can detect leaks to a certain extent, there are problems such as low detection efficiency, high false alarm rate, and difficulty in covering all potential leakage points. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, this application provides a laser scanning pan-tilt head, which has the advantages of high detection accuracy, etc., and solves technical problems such as limited laser scanning range, many detection blind spots, and low detection efficiency.

[0006] To achieve the above object, this application provides the following technical solution: A laser scanning pan-tilt head includes a pan-tilt head. A lifting mechanism is provided on the upper surface of the pan-tilt head, and a rotating mechanism is provided outside the lifting mechanism;

[0007] The lifting mechanism includes an electric push rod, a rotating member, a support rod, a fixed platform and a laser scanner. An installation groove is formed on the upper surface of the pan-tilt, and the electric push rod is fixed to the inner bottom wall of the installation groove. The rotating member is arranged outside the output shaft of the electric push rod to enable the support rod to rotate freely. The support rod is fixed to the upper surface of the rotating member. The fixed platform is fixed to the top end of the support rod. The laser scanner is fixed to the upper surface of the fixed platform.

[0008] By adopting this technical solution, it is allowed for the laser scanner to move and position in the vertical and horizontal directions, thereby achieving a wider scanning range.

[0009] Furthermore, a controller is provided outside the laser scanner.

[0010] By adopting this technical solution, the operation becomes more convenient. The controller can be used to control the working state of the laser scanner and adjust scanning parameters, etc.

[0011] Furthermore, the rotating member includes a turntable, a connecting block and a pulley. The turntable is fixed outside the output shaft of the electric push rod. The connecting block is fixed to the bottom end of the support rod. A rotating groove is formed on the lower surface of the connecting block, and the turntable is rotatably connected inside the rotating groove. The pulley is fixed to the outside of the turntable.

[0012] By adopting this technical solution, it is allowed for the support rod to rotate freely around the turntable, increasing the flexibility and stability of rotation.

[0013] Furthermore, the number of the pulleys is not less than two and they are fixedly distributed in a ring shape on the outside of the turntable.

[0014] By adopting this technical solution, it helps to evenly distribute the force, reduce local stress concentration, and improve the load-bearing capacity and durability of the rotating mechanism.

[0015] Furthermore, the distance between the inner walls on the upper and lower sides of the rotating groove is equal to the thickness of the turntable, and the diameter of the connecting block is equal to the diameter of the support rod.

[0016] By adopting this technical solution, it helps to ensure the smooth operation and precise positioning of the rotating member.

[0017] Further, the rotation mechanism includes a rotating tube, a connecting frame, a rotating ring, a driven gear, a servo motor, a connecting shaft, and a driving gear. The rotating tube is sleeved outside the support rod. The connecting frame is fixed to the upper surface of the pan-tilt. A rotating hole is formed in the upper surface of the connecting frame, and the rotating ring is rotatably connected to the inner wall of the rotating hole through a bearing. The outer side of the rotating tube is fixed to the inner wall of the rotating ring. The driven gear is fixed to the outer side of the rotating tube. The servo motor is fixed to the left side of the connecting frame. The connecting shaft is fixed to the outer side of the output shaft of the servo motor. The driving gear is fixed to the outer side of the connecting shaft, and the driving gear is meshed with the driven gear.

[0018] By adopting this technical solution, precise rotation control can be achieved, and the accuracy of laser scanning can be improved.

[0019] Further, connecting plates are fixed to the inner walls on the left and right sides of the rotating tube. Sliding grooves corresponding to the positions of the connecting plates are formed on the left and right sides of the support rod, and the connecting plates are slidably connected between the front and rear inner walls of the sliding grooves.

[0020] By adopting this technical solution, the internally provided connecting plates will play a role of key fitting due to their insertion into the sliding grooves, and then drive the support rod therein to rotate together through the connecting plates, so that the laser scanner can perform rotational scanning while lifting.

[0021] Further, both the driving gear and the driven gear are bevel gears.

[0022] By adopting this technical solution, the use of bevel gears can improve the stability and load-bearing capacity of gear meshing, which helps to achieve smooth and efficient rotational movement.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] 1. For this laser scanning pan-tilt, through the design of the laser scanning pan-tilt, omnidirectional and dead-angle-free scanning of the target area is achieved, effectively expanding the detection range and reducing the detection blind area; combined with auxiliary means such as infrared sensors and wireless communication modules, the sensitivity and accuracy of detection are improved, and at the same time, real-time data transmission and remote monitoring are realized; by adding sensors and optimizing the scanning strategy, the detection accuracy and emergency response efficiency are further improved.

[0025] 2. For this laser scanning pan-tilt, the laser scanner is installed at the top of the lifting mechanism and is used to emit laser beams and receive reflected light, so as to achieve three-dimensional scanning of the target area. By controlling the movement of the rotation mechanism and the lifting mechanism, omnidirectional and dead-angle-free scanning of the target area can be achieved. At the same time, combined with a specific natural gas detection algorithm, the leaked natural gas can be accurately identified. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic structural diagram of the present application;

[0027] Figure 2 Schematic diagram of the lifting mechanism of the present application;

[0028] Figure 3 For the present application Figure 2 Enlarged schematic diagram of the structure at position A in the present application;

[0029] Figure 4 Schematic diagram of the rotating mechanism of the present application;

[0030] Figure 5 Partial schematic diagram of the rotating mechanism of the present application.

[0031] In the figure: 1, pan-tilt; 2, lifting mechanism; 21, electric push rod; 22, rotating part; 221, turntable; 222, connecting block; 223, pulley; 224, rotating groove; 23, support rod; 24, fixed platform; 25, laser scanner; 26, installation groove; 3, rotating mechanism; 31, rotating tube; 32, connecting frame; 33, rotating ring; 34, driven gear; 35, servo motor; 36, connecting shaft; 37, driving gear; 38, connecting plate. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] Please refer to Figure 1 , a laser scanning pan-tilt in this embodiment includes a pan-tilt 1, a lifting mechanism 2 is provided on the upper surface of the pan-tilt 1, and a rotating mechanism 3 is provided outside the lifting mechanism 2.

[0034] Please refer to Figures 2 to 3, for the purpose of performing lifting adjustment detection, the lifting mechanism 2 in this embodiment includes an electric push rod 21, a rotating member 22, a support rod 23, a fixed platform 24, and a laser scanner 25. An installation groove 26 is formed on the upper surface of the pan-tilt 1, and the electric push rod 21 is fixed to the inner bottom wall of the installation groove 26. As the core component of the lifting mechanism 2, the electric push rod 21 controls the vertical movement of the entire lifting mechanism 2 through its telescopic action. The rotating member 22 is arranged outside the output shaft of the electric push rod 21 to enable the support rod 23 to rotate freely. The rotating member 22 is connected to the output shaft of the electric push rod 21, allowing the support rod 23 to rotate freely under the drive of the rotating mechanism 3 and keeping the output shaft of the electric push rod 21 unaffected by the rotational drive and maintaining the linear motion stability. The support rod 23 is fixed to the upper surface of the rotating member 22, and the fixed platform 24 is fixed to the top end of the support rod 23. The support rod 23 is connected to the rotating member 22, and as the electric push rod 21 expands and contracts, the support rod 23 moves in the vertical direction. The laser scanner 25 is fixed to the upper surface of the fixed platform 24.

[0035] The rotating member 22 includes a turntable 221, a connecting block 222, and a pulley 223. The turntable 221 is fixed to the outside of the output shaft of the electric push rod 21, the connecting block 222 is fixed to the bottom end of the support rod 23, a rotating groove 224 is formed on the lower surface of the connecting block 222, and the turntable 221 is rotatably connected to the inside of the rotating groove 224. The pulley 223 is fixed to the outside of the turntable 221. When the support rod 23 rotates, the connecting block 222 in the rotating member 22 at its bottom will rotate along the outside of the turntable 221 and the pulley 223 to maintain a moving connection. When the support rod 23 moves up and down, the connecting plate 38 will move in the sliding groove to ensure an effective connection.

[0036] In this embodiment, a controller is provided outside the laser scanner 25. The number of pulleys 223 is not less than two and is annularly distributed and fixed to the outside of the turntable 221. The distance between the upper and lower inner walls of the rotating groove 224 is equal to the thickness of the turntable 221. The diameter of the connecting block 222 is equal to the diameter of the support rod 23. The laser scanner 25 is installed at the top of the lifting mechanism 2 and is used to emit a laser beam and receive the reflected light, thereby realizing the three-dimensional scanning of the target area, achieving all-round and dead-angle-free scanning of the target area. At the same time, combined with a specific natural gas detection algorithm, the leaked natural gas can be accurately identified.

[0037] Please refer to Figures 4 to 5, for use in rotational multi-directional detection, the rotation mechanism 3 in this embodiment includes a rotating tube 31, a connecting frame 32, a rotating ring 33, a driven gear 34, a servo motor 35, a connecting shaft 36, and a driving gear 37. The rotating tube 31 is sleeved outside the support rod 23. The servo motor 35 serves as the power source of the rotation mechanism 3 and drives the entire rotation mechanism 3 through the connecting shaft 36 connected to its output shaft. The connecting frame 32 is fixed to the upper surface of the pan-tilt 1. A rotating hole is provided on the upper surface of the connecting frame 32, and the rotating ring 33 is rotatably connected to the inner wall of the rotating hole through a bearing. The outer side of the rotating tube 31 is fixed to the inner wall of the rotating ring 33. The driven gear 34 is fixed to the outer side of the rotating tube 31. When the servo motor 35 rotates, the driving gear 37 rotates accordingly. The driven gear 34 meshes with the driving gear 37 to transmit power to the rotating tube 31. The servo motor 35 is fixed to the left side of the connecting frame 32. The connecting shaft 36 is fixed to the outer side of the output shaft of the servo motor 35. The driving gear 37 is fixed to the outer side of the connecting shaft 36, and the driving gear 37 is meshed and connected to the driven gear 34.

[0038] In this embodiment, connecting plates 38 are fixed to the inner walls on both the left and right sides of the rotating tube 31. Sliding grooves corresponding to the positions of the connecting plates 38 are provided on both the left and right sides of the support rod 23, and the connecting plates 38 are slidably connected between the front and rear inner walls of the sliding grooves. Both the driving gear 37 and the driven gear 34 are bevel gears. The rotating tube 31 can perform circular motion within the connecting frame 32 under the action of the rotating ring 33. At the same time, when the rotating tube 31 rotates, the connecting plates 38 provided inside it will play a role of key fitting due to their insertion into the sliding grooves, and then drive the support rod 23 therein to rotate together through the connecting plates 38, so that the laser scanner 25 can perform rotational scanning while ascending and descending.

[0039] The working principle of the above embodiment is as follows:

[0040] (1) When performing lifting adjustment detection, the electric push rod 21, as the core component of the lifting mechanism 2, controls the vertical movement of the entire lifting mechanism 2 through its telescopic action. The rotating member 22 is connected to the output shaft of the electric push rod 21, allowing the support rod 23 to rotate freely under the drive of the rotation mechanism 3 and enabling the output shaft of the electric push rod 21 to be unaffected by the rotational drive and maintain the stability of linear motion. The support rod 23 is connected to the rotating member 22. As the electric push rod 21 telescopes, the support rod 23 moves along the vertical direction. The laser scanner 25 is installed at the top of the lifting mechanism 2 and is used to emit laser beams and receive reflected light, thereby realizing three-dimensional scanning of the target area, achieving all-round and dead-angle-free scanning of the target area. At the same time, combined with a specific natural gas detection algorithm, the leaked natural gas can be accurately identified.

[0041] (2)When performing rotational multi-directional detection, the servo motor 35 serves as the power source of the rotating mechanism 3. It drives the entire rotating mechanism 3 through the connecting shaft 36 connected to its output shaft. When the servo motor 35 rotates, the driving gear 37 rotates accordingly. The driven gear 34 meshes with the driving gear 37 to transmit power to the rotating tube 31. Under the action of the rotating ring 33, the rotating tube 31 can perform circular motion within the connecting frame 32. At the same time, when the rotating tube 31 rotates, the connecting plate 38 arranged inside it will play a role of key fit due to its insertion into the sliding groove. Furthermore, the support rod 23 therein is driven to rotate together through the connecting plate 38, so that the laser scanner 25 can perform rotational scanning while lifting. And when the support rod 23 rotates, the connecting block 222 in the bottom rotating part 22 of the support rod 23 will rotate along the outer sides of the turntable 221 and the pulley 223 to maintain a movable connection. When the support rod 23 moves up and down, the connecting plate 38 will move within the sliding groove to ensure an effective connection.

Claims

1. A laser scanning platform, comprising a platform (1), characterized in that: A lifting mechanism (2) is provided on the upper surface of the pan / tilt platform (1), and a rotating mechanism (3) is provided on the outer side of the lifting mechanism (2); The lifting mechanism (2) comprises an electric push rod (21), a rotating member (22), a support rod (23), a fixed platform (24) and a laser scanner (25); a mounting groove (26) is provided on the upper surface of the pan / tilt platform (1), and the electric push rod (21) is fixed to the inner bottom wall of the mounting groove (26); the rotating member (22) is arranged on the outer side of the output shaft of the electric push rod (21) so as to enable the support rod (23) to rotate freely; the support rod (23) is fixed to the upper surface of the rotating member (22); the fixed platform (24) is fixed to the top end of the support rod (23); and the laser scanner (25) is fixed to the upper surface of the fixed platform (24).

2. A laser scanning platform according to claim 1, characterized in that: A controller is provided on the outside of the laser scanner (25).

3. The laser scanning platform according to claim 1, characterized in that: The rotating member (22) comprises a rotating disk (221), a connecting block (222) and a pulley (223); the rotating disk (221) is fixed to the outer side of the output shaft of the electric push rod (21); the connecting block (222) is fixed to the bottom end of the support rod (23); a rotating groove (224) is provided on the lower surface of the connecting block (222); the rotating disk (221) is rotatably connected to the inside of the rotating groove (224); and the pulley (223) is fixed to the outer side of the rotating disk (221).

4. The laser scanning platform according to claim 3, characterized in that: The number of the pulleys (223) is no less than two and they are distributed in a ring shape and fixed on the outer side of the rotating disk (221).

5. The laser scanning platform according to claim 3, characterized in that: The distance between the inner walls on the upper and lower sides of the rotating groove (224) is equal to the thickness of the rotating disk (221), and the diameter of the connecting block (222) is equal to the diameter of the supporting rod (23).

6. The laser scanning platform according to claim 1, characterized in that: The rotating mechanism (3) comprises a rotating tube (31), a connecting frame (32), a rotating ring (33), a driven gear (34), a servo motor (35), a connecting shaft (36) and a driving gear (37); the rotating tube (31) is sleeved on the outer side of the support rod (23); the connecting frame (32) is fixed to the upper surface of the pan / tilt head (1); a rotating hole is provided on the upper surface of the connecting frame (32); the rotating ring (33) is rotatably connected to the inner wall of the rotating hole via a bearing; the outer side of the rotating tube (31) is fixed to the inner wall of the rotating ring (33); the driven gear (34) is fixed to the outer side of the rotating tube (31); the servo motor (35) is fixed to the left side of the connecting frame (32); the connecting shaft (36) is fixed to the outer side of the output shaft of the servo motor (35); the driving gear (37) is fixed to the outer side of the connecting shaft (36); and the driving gear (37) is meshingly connected to the driven gear (34).

7. The laser scanning platform according to claim 6, characterized in that: Connecting plates (38) are fixed to the left and right inner walls of the rotating tube (31), sliding grooves corresponding to the positions of the connecting plates (38) are opened on the left and right sides of the supporting rod (23), and the connecting plates (38) are slidably connected between the front and rear inner walls of the sliding groove.

8. The laser scanning platform according to claim 6, characterized in that: The driving gear (37) and the driven gear (34) are both bevel gears.

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