Emergency landing device for power grid tower

Abstract

The application discloses an emergency landing device for a power grid pole tower and belongs to the technical field of power equipment. The emergency landing device for the power grid pole tower comprises a fixing unit, a lifting unit and a speed limiting unit. The fixing unit comprises a fixing plate. The lifting unit comprises a shell, a storage roller and a pulling rope. The shell is arranged on the fixing plate. The storage roller is rotationally arranged in the shell. One end of the pulling rope is wound on the storage roller and connected with the storage roller. The other end of the pulling rope is connected with a safety belt. The speed limiting unit comprises a rotating disc, a first positioning piece and a second positioning piece. The rotating disc is coaxially connected with the storage roller. The first positioning piece and the second positioning piece can be close to each other and clamp the rotating disc or be away from each other and release the rotating disc. The emergency landing device does not need manual climbing and can assist personnel to automatically land from the power grid pole tower, thereby improving the safety and convenience of the maintenance of the power grid pole tower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, and particularly relates to an emergency landing device for a power grid tower. BACKGROUND

[0002] Power grid tower maintenance is an important work, which involves regular inspection, maintenance and necessary repair of power transmission line towers to ensure the safe operation of the power grid and the stability of power supply.

[0003] The existing power grid tower maintenance lacks effective and rapid landing measures in emergency situations. When the operator needs to immediately and safely evacuate from the high-altitude working environment, the operator usually relies on his own operation skills to climb, which is not only inefficient, but also has certain safety risks, reducing the safety and convenience of power grid tower maintenance high-altitude work.

[0004] Therefore, it is urgent to provide an emergency landing device for a power grid tower to solve the above problems. SUMMARY

[0005] The present application aims to provide an emergency landing device for a power grid tower, which can assist personnel to automatically land from the power grid tower without manual climbing, thereby improving the safety and convenience of power grid tower maintenance.

[0006] To achieve the above-mentioned purpose, the following technical solutions are provided:

[0007] The emergency landing device for the power grid tower comprises:

[0008] A fixed unit comprising a fixed plate;

[0009] A lifting unit comprising a shell, a storage roller and a pulling rope, the shell is arranged on the fixed plate, the storage roller is rotationally arranged in the shell, and one end of the pulling rope is wound on the storage roller and connected with the storage roller;

[0010] A safety belt, the other end of the pulling rope is connected with the safety belt;

[0011] A speed limiting unit comprising a rotating disc, a first positioning member and a second positioning member, the rotating disc is coaxially connected with the storage roller, and the first positioning member and the second positioning member can approach each other to clamp the rotating disc or move away from each other to release the rotating disc.

[0012] As an optional solution for the emergency landing device for power grid towers, the lifting unit further includes a first mounting plate and a second mounting plate. The first mounting plate is disposed above the side wall of the outer casing and has a first shaft. The second mounting plate is disposed below the side wall of the outer casing and has a second shaft and a third shaft spaced apart on it. The emergency landing device for power grid towers also includes:

[0013] An adjustment unit includes a rotating rod, a first connecting rod, a power rod, a second connecting rod, and a toggle rod. The first end of the rotating rod is rotatably connected to the first shaft, and the second end of the rotating rod is hinged to the upper end of the first connecting rod. The power rod is rotatably mounted on the second shaft, with its first end hinged to the lower end of the first connecting rod and its second end hinged to the lower end of the second connecting rod. The first end of the toggle rod is hinged to the upper end of the second connecting rod, and the second end of the toggle rod is rotatably connected to the third shaft.

[0014] The first positioning element is disposed on the rotating rod, the second positioning element is disposed on the actuating rod, and the rotating disk is located between the first positioning element and the second positioning element.

[0015] As an optional solution for the emergency lowering device for power grid towers, the side wall of the housing is provided with a third mounting plate, and the adjustment unit further includes:

[0016] A linear drive module, wherein the fixed end of the linear drive module is connected to the third mounting plate, and the telescopic end of the linear drive module is hinged to the first end of the power rod.

[0017] As an alternative to the emergency lowering device for power grid towers, the linear drive module includes a hydraulic rod or an electric actuator.

[0018] As an optional solution for emergency lowering devices for power grid towers, the lifting unit further includes:

[0019] A rotary drive module is disposed on the housing and is connected to the storage roller via a drive mechanism.

[0020] As an optional solution for emergency lowering devices for power grid towers, the rotary drive module includes a motor or a drive gear.

[0021] As an optional solution for emergency descent devices for power grid towers, the safety belt includes:

[0022] Backrest cushion;

[0023] Two first straps are both located at the top of the backrest cushion, and one end of the pull rope is connected to the top of the backrest cushion and located between the two first straps.

[0024] Two second straps are respectively provided on both sides of the backrest cushion, and the first strap and the second strap are engaged.

[0025] As an optional solution for emergency descent devices for power grid towers, the safety belt also includes:

[0026] Both leg rings are connected to the bottom of the backrest cushion.

[0027] As an optional solution for an emergency lowering device for power grid towers, the first positioning element has a first anti-slip structure on the side near the rotating disk; and / or

[0028] The second positioning member has a second anti-slip structure on the side near the rotating disk.

[0029] As an optional solution for emergency lowering devices for power grid towers, the circumferential wall of the rotating disk is provided with a third anti-slip structure.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] The emergency descent device for power grid towers provided by this invention mounts the outer shell of the lifting unit onto the fixing plate of the fixing unit. The fixing plate can be installed at a corresponding height position on the power grid tower. One end of the pull rope is connected to a take-up roller inside the outer shell, and the other end of the pull rope is connected to a safety belt. The operator can be secured to the emergency descent device for power grid towers by the safety belt. The operator can be lowered by rotating the take-up roller, eliminating the need for manual climbing and assisting personnel in automatically descending from the power grid tower, thus improving the safety and convenience of power grid tower maintenance. The rotating disk of the speed limiting unit is coaxially connected to the take-up roller. Through the cooperation of the first positioning component and the second positioning component, the rotation speed of the take-up roller can be limited, providing the operator with a suitable descent speed and improving user comfort. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0033] Fig. 1 This is a schematic diagram of the assembly of the emergency landing device for power grid towers in an embodiment of the present invention;

[0034] Fig. 2 This is an explosion diagram of the emergency landing device for power grid towers in an embodiment of the present invention;

[0035] Fig. 3This is a side view of the emergency landing device for power grid towers in an embodiment of the present invention (the safety belt is not shown).

[0036] Figure label:

[0037] 1. Fixing unit; 2. Lifting unit; 3. Seat belt; 4. Speed ​​limiting unit; 5. Adjustment unit;

[0038] 11. Fixing plate;

[0039] 21. Outer shell; 22. Receiving roller; 23. Pull rope; 24. First mounting plate; 241. First shaft; 25. Second mounting plate; 251. Second shaft; 252. Third shaft; 26. Third mounting plate; 27. Rotation drive module;

[0040] 31. Backrest cushion; 32. First strap; 321. First fastener; 33. Second strap; 331. Second fastener; 34. Leg ring;

[0041] 41. Rotary disk; 42. First positioning component; 43. Second positioning component;

[0042] 51. Rotating rod; 52. First connecting rod; 53. Power rod; 54. Second connecting rod; 55. Actuating rod; 56. Linear drive module. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0047] To enable personnel to automatically descend from power grid towers without manual climbing, thereby improving the safety and convenience of power grid tower maintenance, this embodiment provides an emergency descent device for power grid towers. The following is a description of this device. Figs. 1 to 3 The specific content of this embodiment will be described in detail.

[0048] like Fig. 1 Combination Fig. 2 As shown, the emergency lowering device for power grid towers in this embodiment includes a fixing unit 1, a lifting unit 2, a safety belt 3, and a speed limiting unit 4. The fixing unit 1 includes a fixing plate 11. The lifting unit 2 includes a housing 21, a receiving roller 22, and a pulling rope 23. The housing 21 is mounted on the fixing plate 11, the receiving roller 22 is rotatably mounted inside the housing 21, and one end of the pulling rope 23 is wound around and connected to the receiving roller 22. The other end of the pulling rope 23 is connected to the safety belt 3. The speed limiting unit 4 includes a rotating disk 41, a first positioning member 42, and a second positioning member 43. The rotating disk 41 is coaxially connected to the receiving roller 22, and the first positioning member 42 and the second positioning member 43 can move closer to each other to clamp the rotating disk 41 or move further apart to release the rotating disk 41.

[0049] In summary, the emergency descent device for power grid towers provided by this invention mounts the outer shell 21 of the lifting unit 2 onto the fixing plate 11 of the fixing unit 1. The fixing plate 11 can be installed at a corresponding height position on the power grid tower. One end of the pull rope 23 is connected to the receiving roller 22 inside the outer shell 21, and the other end of the pull rope 23 is connected to the safety belt 3. The operator can be secured to the emergency descent device for power grid towers via the safety belt 3. The operator can descend by rotating the receiving roller 22 without manual climbing, thus assisting personnel in automatically descending from the power grid tower and improving the safety and convenience of power grid tower maintenance. The rotating disk 41 of the speed limiting unit 4 is coaxially connected to the receiving roller 22. Through the cooperation of the first positioning member 42 and the second positioning member 43, the rotation speed of the receiving roller 22 can be limited, providing the operator with a suitable descent speed and improving user comfort.

[0050] Furthermore, such as Fig. 2 Combination Fig. 3 As shown, the lifting unit 2 also includes a first mounting plate 24 and a second mounting plate 25. The first mounting plate 24 is disposed above the side wall of the outer casing 21, and a first shaft 241 is disposed on the first mounting plate 24. The second mounting plate 25 is disposed below the side wall of the outer casing 21, and a second shaft 251 and a third shaft 252 are disposed on the second mounting plate 25 at intervals. The emergency lowering device for the power grid tower also includes an adjustment unit 5. The adjustment unit 5 includes a rotating rod 51, a first connecting rod 52, a power rod 53, a second connecting rod 54, and a toggle rod 55. The first end of the rotating rod 51 rotates with the first shaft 241. The adjustment unit 5 is connected in the following ways: the second end of the rotating rod 51 is hinged to the upper end of the first connecting rod 52; the power rod 53 is rotatably mounted on the second shaft 251; the first end of the power rod 53 is hinged to the lower end of the first connecting rod 52; the second end of the power rod 53 is hinged to the lower end of the second connecting rod 54; the first end of the actuating rod 55 is hinged to the upper end of the second connecting rod 54; and the second end of the actuating rod 55 is rotatably connected to the third shaft 252. A first positioning member 42 is mounted on the rotating rod 51, a second positioning member 43 is mounted on the actuating rod 55, and a rotating disk 41 is located between the first positioning member 42 and the second positioning member 43. When the adjustment unit 5 is in its initial state, the rotating rod 51, the power rod 53, and the actuating rod 55 are parallel to each other and are all in a horizontal state. Fig. 3 For example, when the power rod 53 is rotated counterclockwise, the first positioning member 42 on the rotating rod 51 and the second positioning member 43 on the actuating rod 55 can be brought closer to the rotating disk 41. When the power rod 53 is rotated clockwise, the first positioning member 42 on the rotating rod 51 and the second positioning member 43 on the actuating rod 55 can be moved away from the rotating disk 41.

[0051] Furthermore, a third mounting plate 26 is provided on the side wall of the outer casing 21, and the adjustment unit 5 also includes a linear drive module 56. The fixed end of the linear drive module 56 is connected to the third mounting plate 26, and the telescopic end of the linear drive module 56 is hinged to the first end of the power rod 53. When the telescopic end of the linear drive module 56 presses down on the first end of the power rod 53, the second end of the power rod 53 can be moved upward, thereby increasing the clamping force of the first positioning member 42 and the second positioning member 43 on the rotating disk 41; when the telescopic end of the linear drive module 56 pulls up on the first end of the power rod 53, the second end of the power rod 53 can be moved downward, thereby decreasing the clamping force of the first positioning member 42 and the second positioning member 43 on the rotating disk 41.

[0052] For example, the linear drive module 56 can be, but is not limited to, a hydraulic rod or an electric actuator, without further restrictions.

[0053] Furthermore, the lifting unit 2 also includes a rotary drive module 27, which is mounted on the housing 21 and connected to the storage roller 22 via a transmission connection. The rotary drive module 27 can drive the storage roller 22 to rotate, thereby providing tension to the safety belt 3 via the pull rope 23. Optionally, the pull rope 23 can be, but is not limited to, a steel wire rope or a nylon rope.

[0054] For example, the rotation drive module 27 includes a motor or a drive gear. In this embodiment, a motor directly drives the collection roller 22 to rotate. In other embodiments, a driven gear is fixedly sleeved on one end of the collection roller 22, or the collection roller 22 can be driven by meshing a drive gear and a driven gear.

[0055] Furthermore, such as Fig. 2 As shown, the safety belt 3 includes a backrest cushion 31, two first straps 32, and two second straps 33. Both first straps 32 are located at the top of the backrest cushion 31, and one end of the pull rope 23 is connected to the top of the backrest cushion 31 and positioned between the two first straps 32. The two second straps 33 are located on both sides of the backrest cushion 31, and the first straps 32 and second straps 33 are interlocked. The first straps 32 and 33 on the left side are used to secure the left shoulder of the operator, and the first straps 32 and 33 on the right side are used to secure the right shoulder of the operator, improving the stability of the harness between the operator and the safety belt 3 and preventing the operator from falling out of the safety belt 3 during operation and causing danger.

[0056] Specifically, the first strap 32 has a first buckle 321 at its end, and the second strap 33 has a second buckle 331 at its end. The first buckle 321 can engage with the second buckle 331. The engagement of the first buckle 321 and the second buckle 331 is a prior art structure and will not be elaborated upon here. Optionally, the backrest cushion 31 is made of flexible material, conforming to the operator's back to provide comfortable support and cushioning, reducing the pressure of the seatbelt 3 on the body and improving wearing comfort.

[0057] Furthermore, the seat belt 3 also includes two leg loops 34, both of which are connected to the bottom of the backrest cushion 31. The left leg loop 34 is used to pass through the left leg of the person, and the right leg loop 34 is used to pass through the right leg of the person, further improving the secure fastening between the person and the seat belt 3 and ensuring that the operator's body is fully protected in the event of an accident.

[0058] Furthermore, the first positioning member 42 is provided with a first anti-slip structure on the side near the rotating disk 41; and / or the second positioning member 43 is provided with a second anti-slip structure on the side near the rotating disk 41. By adding the first anti-slip structure and the second anti-slip structure, it is helpful to increase the friction between the first positioning member 42 and the second positioning member 43 and the rotating disk 41.

[0059] Furthermore, the circumferential wall of the rotating disk 41 is provided with a third anti-slip structure. By adding the third anti-slip structure, it helps to increase the frictional force when the rotating disk 41 contacts the first positioning member 42 and the second positioning member 43.

[0060] In summary, the working principle and usage procedure of this emergency lowering device for power grid towers are as follows: When the operator is working at height, the first and second straps 32 and 33 are fixed to the operator's body by the engagement of the first locking fastener 321 and the second locking fastener 331. When it is necessary to adjust the position of the safety belt 3, the rotation drive module 27 is activated. The rotation drive module 27 drives the storage roller 22 to rotate through the spline connection. During the rotation of the storage roller 22, the pull rope 23 is retracted and extended, thereby raising or lowering the safety belt 3 to a suitable position, making it convenient for the operator to wear and adapting to the needs of operators of different heights and working scenarios. The operator can quickly and conveniently put on the safety belt, improving work efficiency.

[0061] When the linear drive module 56 is activated, its extension and retraction cause the power rod 53 to rotate around the second shaft 251. This rotation of the power rod 53 causes the second connecting rod 54 to rotate, and the actuating rod 55 at the top of the second connecting rod 54 rotates accordingly. Since the second positioning member 43 is connected to the top surface of the actuating rod 55, the rotation of the actuating rod 55 causes relative movement of the second positioning member 43 on one side of the rotating disk 41. Simultaneously, the rotation of the power rod 53 is transmitted to the rotating rod 51 via the first connecting rod 52. The rotating rod 51 rotates around the first shaft 241, driving the rod connected to it... The first positioning element 42 moves relative to the other side of the rotating disk 41, changing the distance between the two arc-shaped positioning elements 42 and 43, which are distributed on the same vertical horizontal line on both sides of the rotating disk 41. When the distance decreases, the frictional force on the rotating disk 41 increases. Since the rotating disk 41 is fixedly connected to the receiving roller 22, the rotational speed of the receiving roller 22 is limited, keeping the safety belt 3 in a tighter state. When the distance increases, the frictional force on the rotating disk 41 decreases, the rotational speed of the receiving roller 22 increases, and the descent speed of the operator increases. In this way, by using the adjustment unit 5 to control the speed limiting mechanism unit, the descent speed of the operator can be adjusted and emergency braking can be achieved.

[0062] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An emergency lowering device for power grid towers, characterized in that, include: The fixing unit (1) includes a fixing plate (11); The lifting unit (2) includes a housing (21), a collecting roller (22) and a pulling rope (23). The housing (21) is disposed on the fixed plate (11). The collecting roller (22) is rotatably disposed inside the housing (21). One end of the pulling rope (23) is wound around the collecting roller (22) and connected to the collecting roller (22). The safety belt (3) has the other end of the pull rope (23) connected to the safety belt (3); The speed limiting unit (4) includes a rotating disk (41), a first positioning member (42) and a second positioning member (43). The rotating disk (41) is coaxially connected to the receiving roller (22). The first positioning member (42) and the second positioning member (43) can move closer to each other and clamp the rotating disk (41) or move further away from each other and release the rotating disk (41). The lifting unit (2) further includes a first mounting plate (24) and a second mounting plate (25). The first mounting plate (24) is disposed above the side wall of the outer casing (21) and has a first shaft (241) on it. The second mounting plate (25) is disposed below the side wall of the outer casing (21) and has a second shaft (251) and a third shaft (252) spaced apart on it. The emergency lowering device for the power grid tower further includes: Adjustment unit (5), the adjustment unit (5) includes a rotating rod (51), a first connecting rod (52), a power rod (53), a second connecting rod (54) and a toggle rod (55). The first end of the rotating rod (51) is rotatably connected to the first shaft (241), and the second end of the rotating rod (51) is hinged to the upper end of the first connecting rod (52). The power rod (53) is rotatably mounted on the second shaft (251). The first end of the power rod (53) is hinged to the lower end of the first connecting rod (52), and the second end of the power rod (53) is hinged to the lower end of the second connecting rod (54). The first end of the toggle rod (55) is hinged to the upper end of the second connecting rod (54), and the second end of the toggle rod (55) is rotatably connected to the third shaft (252). The first positioning element (42) is disposed on the rotating rod (51), the second positioning element (43) is disposed on the actuating rod (55), and the rotating disk (41) is located between the first positioning element (42) and the second positioning element (43); The side wall of the outer casing (21) is provided with a third mounting plate (26), and the adjustment unit (5) further includes: A linear drive module (56) is provided, the fixed end of which is connected to the third mounting plate (26), and the telescopic end of which is hinged to the first end of the power rod (53).

2. The emergency lowering device for power grid towers according to claim 1, characterized in that, The linear drive module (56) includes a hydraulic rod or an electric actuator.

3. The emergency lowering device for power grid towers according to claim 1, characterized in that, The lifting unit (2) also includes: A rotary drive module (27) is disposed on the housing (21) and is connected to the receiving roller (22) in a transmission manner.

4. The emergency lowering device for power grid towers according to claim 3, characterized in that, The rotary drive module (27) includes a motor or a drive gear.

5. The emergency lowering device for power grid towers according to claim 1, characterized in that, The seat belt (3) includes: Backrest cushion (31); Two first straps (32) are both located on the top of the backrest cushion (31), and one end of the pull rope (23) is connected to the top of the backrest cushion (31) and located between the two first straps (32); Two second straps (33) are respectively disposed on both sides of the backrest cushion (31), and the first strap (32) is engaged with the second strap (33).

6. The emergency lowering device for power grid towers according to claim 5, characterized in that, The seat belt (3) also includes: Both leg rings (34) are connected to the bottom of the backrest cushion (31).

7. The emergency lowering device for power grid towers according to any one of claims 1-6, characterized in that, The first positioning member (42) has a first anti-slip structure on the side near the rotating disk (41); and / or The second positioning member (43) is provided with a second anti-slip structure on the side near the rotating disk (41).

8. The emergency lowering device for power grid towers according to claim 7, characterized in that, The circumferential wall of the rotating disk (41) is provided with a third anti-slip structure.

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