Climbing frame for wind power equipment maintenance with safety protection function

Abstract

The utility model provides a kind of climbing frame with safety protection function for wind power generation equipment maintenance belongs to wind power generation equipment maintenance technical field, including ladder, ladder top inside wall is equipped with winding component, winding component realizes the dynamic flexible connection between personnel and ladder, this is the basis for realizing passive safety protection, sliding groove ensures that sliding member and protection ring can only move along preset vertical path, prevent the uncertain risk caused by its swing, for the problem that traditional protection structure cannot automatically trigger anti-falling function, the utility model passes through the protection ring structure of connecting rope and with staff together lifting, can when staff accidentally falls and causes it to tell falling, by the centrifugal force of high-speed rotation of rotating shaft, so that rotating member and ratchet tooth are mutually contacted and jammed, and then prevent staff from continuing to fall.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment maintenance technology, specifically to a climbing frame for wind power equipment maintenance with safety protection function. Background Technology

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean and pollution-free renewable energy source that has been utilized by humans for a long time, primarily through windmills for pumping water and grinding grain. People are interested in how to use wind to generate electricity. Wind power generation equipment is a device that uses wind energy to produce electricity. Its characteristics include clean energy, a green and inexhaustible natural resource, and wind being one of the pollution-free energy sources. Moreover, it is inexhaustible. For coastal islands, grassland pastoral areas, mountainous areas, and plateau regions that lack water, fuel, and have inconvenient transportation, utilizing wind power generation is very suitable and has great potential, adapting to local conditions. Offshore wind power is an important area of ​​renewable energy development, a vital force driving wind power technology progress and industrial upgrading, and an important measure to promote energy structure adjustment.

[0003] Chinese patent CN222810736U discloses a climbing frame for the maintenance of wind power equipment with safety protection function, which is used to protect personnel when they are working at height.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: In actual use, the fall protection structure of the above solutions cannot be automatically triggered, which makes the operation of the staff during the fall very important. However, it is difficult for personnel to operate the rope in a weightless state. Therefore, it is difficult to trigger the protective effect of the above devices in actual use.

[0005] This invention proposes a climbing frame with safety protection function for the maintenance of wind power generation equipment to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to utilize the kinetic energy generated during the worker's descent to drive the centrifugal structure in the winding structure. By interlocking the centrifugal structure with the ratchet structure, the protective ring is automatically locked during high-speed descent, thus ensuring that the worker will not continue to fall. Its principle is similar to that of the safety belt locking structure, thereby overcoming the problems mentioned in the background art.

[0007] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0008] A climbing frame for maintaining wind power equipment with safety protection features includes a ladder. A winding component is located on the inner side wall of the top of the ladder, connected to a winding roller. The winding roller is rotatably connected to the outer side of the ladder. A connecting rope is wound around the outer arc surface of the winding roller, and the other end of the connecting rope is connected to a sliding element. A vertical sliding groove is provided on the outer side of the ladder, slidably connected to the sliding element. A protective ring is fixedly connected to the side of the sliding element. A blocking component is rotatably connected to the outer side of the bottom of the ladder. Through the combination of the winding component, connecting rope, sliding element, and protective ring, a dynamic and flexible connection between personnel and the ladder is achieved, which is the basis for passive safety protection. The sliding groove ensures that the sliding element and protective ring can only move along a preset vertical path, preventing uncertain risks caused by their swaying.

[0009] Further defining the above technical solution, the winding component includes a winding housing fixedly connected to the inner wall of the ladder. A ratchet tooth is fixedly provided on the inner arc surface of the winding housing, and a torsion spring assembly is provided at the center of the inner wall of the winding housing. The ratchet tooth and the torsion spring assembly are introduced, and the torsion spring provides the rebound force for winding the rope to keep the connecting rope taut.

[0010] Further defining the above technical solution, the rotating end of the torsion spring assembly is fixedly connected to a rotating shaft, and a connecting piece is fixedly provided on the outer arc surface of the rotating shaft. Rotating pieces are rotatably connected to both ends of the connecting piece. By pulling the rotating piece with the spring, the rotating piece is always kept in contact with the ratchet teeth, thus achieving the effect of "allowing slow and uniform upward pulling (the rotating piece can slide over the tooth groove), but once it is pulled down quickly (such as falling), it will be immediately jammed by the ratchet teeth".

[0011] Further defining the above technical solution, two spring supports are symmetrically arranged at the top center of the connector. A spring is fixedly connected to the side of the spring support, and the other end of the spring is fixedly connected to the side of the rotating component. The rotating end of the rotating component contacts the ratchet teeth. When the falling sliding component reaches the bottom of the ladder, it will be blocked by the rotation limit component and interlocked with the rotation blocking component to prevent the sliding component from slipping off from the bottom, thus buying time for rescue and constituting a safety redundancy.

[0012] Further defining the above technical solution, the blocking component includes a rotating blocking member and a rotating limiting member. The side of the rotating limiting member contacts and presses against the top of the sliding member. The rotating limiting member can only rotate counterclockwise. When the rotating limiting member is facing vertically downward, it contacts the rotating blocking member.

[0013] Further defining the above technical solution, the protective ring is semi-circular and equipped with several safety ropes for connecting to the worker's body. The semi-circular design of the protective ring is ergonomic, facilitating personnel entry and exit and the connection of safety ropes. The multiple safety ropes allow for adaptation to different safety attachment points (such as the D-ring on a full-body harness), improving flexibility and comfort.

[0014] Further defining the above technical solution, the winding components are symmetrically arranged on both sides of the ladder, with the two sets of winding components rotating synchronously. This symmetrical arrangement of the winding components and connecting ropes on both sides of the ladder provides double the strength and stability. Synchronous force on both sides balances the lateral tension on the protective ring, preventing overload on one side of the mechanism, resulting in smoother operation of the device and further improving safety and service life.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the automatic retractable connecting rope and protective ring, the workers are dynamically connected to the ladder, forming a reliable fall protection barrier, which fundamentally avoids the risk of falling due to slipping or lack of physical strength in traditional ladder climbing operations.

[0017] 2. The safety protection function is automatically implemented. The operator only needs to connect their body to the protective ring, and the winding component will automatically retract and extend the connecting rope as the ring moves up and down. No operator needs to perform any locking or unlocking operations, which reduces the complexity of operation and improves efficiency.

[0018] 3. The high-speed centrifugal force generated during an accidental fall can cause the rotating parts to jam against the ratchet teeth, thereby preventing workers from falling accidentally. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the ratchet teeth in this application.

[0023] Among them, 1. ladder; 2. winding component; 201. winding housing; 202. ratchet tooth; 203. shaft; 204. connector; 205. rotating component; 206. spring; 207. spring bracket; 3. winding roller; 4. connecting rope; 5. sliding groove; 6. sliding component; 7. protective ring; 8. blocking assembly. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 and Figure 2 This application discloses a climbing frame for the maintenance of wind power generation equipment with safety protection function, including a ladder 1. The inner side wall of the top of the ladder 1 is provided with a winding component 2. The winding component 2 is connected to a winding roller 3. The winding roller 3 is rotatably connected to the outer side of the ladder 1. A connecting rope 4 is wound around the outer arc surface of the winding roller 3. The other end of the connecting rope 4 is connected to a sliding member 6. The outer side of the ladder 1 is provided with a vertical sliding groove 5. The sliding groove 5 is slidably connected to the sliding member 6. A protective ring 7 is fixedly connected to the side of the sliding member 6. A blocking component 8 is rotatably connected to the outer side of the bottom of the ladder 1.

[0026] Reference Figure 1 and Figure 2 The winding component 2 includes a winding housing 201 fixedly connected to the inner wall of the ladder 1. A ratchet tooth 202 is fixedly provided on the inner arc surface of the winding housing 201. A torsion spring assembly is provided at the center of the inner wall of the winding housing 201. A rotating shaft 203 is fixedly connected to the rotating end of the torsion spring assembly. A connector 204 is fixedly provided on the outer arc surface of the rotating shaft 203. A rotating component 205 is rotatably connected to both ends of the connector 204. Two spring brackets 207 are symmetrically arranged at the center of the top of the connector 204. A spring 206 is fixedly connected to the side of the spring bracket 207. The other end of the spring 206 is fixedly connected to the side of the rotating component 205. The rotating end of the rotating component 205 contacts the ratchet tooth 202.

[0027] Reference Figure 2 and Figure 3 The blocking component 8 includes a rotating blocking component and a rotating limiting component. The side of the rotating limiting component contacts and presses against the top of the sliding component 6. The rotating limiting component can only rotate 90 degrees counterclockwise. When the rotating limiting component is facing vertically downward, it contacts the rotating blocking component. The protective ring 7 is semi-circular and has several safety ropes. The safety ropes are used to connect to the body of the operator. The winding components 2 are symmetrically arranged on both sides of the ladder 1. The two sets of winding components 2 rotate synchronously.

[0028] In summary, the climbing frame for wind power equipment maintenance with safety protection function disclosed in this application, when personnel climb upwards, generates an upward pulling force on the winding roller 3 through the connecting rope 4. This pulling force is transmitted to the connecting member 204 and the rotating member 205 through the rotating shaft 203. Since the rotating member 205 abuts against the ratchet tooth 202 under the action of the spring 206, the upward pulling force causes the rotating member 205 to overcome the spring force and slide over the inclined surface of the ratchet tooth 202, allowing the rotating shaft 203 to rotate clockwise, thereby releasing the connecting rope 4. At this time, the torsion spring assembly is tightened by the upward pull action, storing rebound potential energy.

[0029] With each step a person takes upwards, the connecting rope is pulled out a little, but due to the recovery force of the torsion spring, the rope always remains slightly taut and will not sag.

[0030] If a person falls, the connecting rope 4 will be pulled downwards rapidly, causing the take-up roller 3 and the rotating shaft 203 to rotate counterclockwise at high speed.

[0031] The rapid rotation will cause the end of the rotating part 205 to be instantly jammed into the vertical tooth groove of the ratchet tooth 202 under the combined action of centrifugal force and spring 206, and it will be unable to slide out.

[0032] The engagement of the rotating part 205 with the ratchet tooth 202 immediately locks the rotating shaft 203, preventing it from continuing to rotate. This firmly grips the connecting rope 4, preventing it from continuing to descend and suspending the personnel near the fall point, thus achieving braking.

[0033] When not in use, the slider 6 can be prevented from accidentally bouncing upwards by sliding the slider 6 to the bottom of the sliding groove 5 and rotating the blocking component 8 to block the top of the slider 6.

Claims

1. A climbing frame for the maintenance of wind power generation equipment with safety protection function, comprising a ladder (1), characterized in that, The ladder (1) has a winding component (2) on the inner side wall of the top. The winding component (2) is connected to a winding roller (3). The winding roller (3) is rotatably connected to the outer side of the ladder (1). A connecting rope (4) is wound around the outer arc surface of the winding roller (3). A sliding component (6) is connected to the other end of the connecting rope (4). The ladder (1) has a vertical sliding groove (5) on the outer side. The sliding groove (5) is slidably connected to the sliding component (6). A protective ring (7) is fixedly connected to the side of the sliding component (6). A blocking component (8) is rotatably connected to the outer side of the bottom of the ladder (1).

2. The climbing frame for wind power equipment maintenance with safety protection function according to claim 1, characterized in that, The winding component (2) includes a winding housing (201) fixedly connected to the inner wall of the ladder (1), a ratchet tooth (202) fixedly provided on the inner arc surface of the winding housing (201), and a torsion spring assembly provided at the center of the inner wall of the winding housing (201).

3. The climbing frame for wind power equipment maintenance with safety protection function according to claim 2, characterized in that, The rotating end of the torsion spring assembly is fixedly connected to a rotating shaft (203), and a connector (204) is fixedly provided on the outer arc surface of the rotating shaft (203). Rotating components (205) are rotatably connected to both ends of the connector (204).

4. A climbing frame for maintaining wind power equipment with safety protection function according to claim 3, characterized in that, Two spring brackets (207) are symmetrically arranged at the top center of the connector (204). A spring (206) is fixedly connected to the side of the spring bracket (207). The other end of the spring (206) is fixedly connected to the side of the rotating part (205). The rotating end of the rotating part (205) contacts the ratchet tooth (202).

5. A climbing frame for maintaining wind power equipment with safety protection function according to claim 4, characterized in that, The blocking assembly (8) includes a rotating blocking member and a rotating limiting member. The side of the rotating limiting member contacts and presses against the top of the sliding member (6). The rotating limiting member can only rotate counterclockwise (90) degrees. When the rotating limiting member is facing directly downward, it contacts the rotating blocking member.

6. A climbing frame for maintaining wind power equipment with safety protection function according to claim 5, characterized in that, The protective ring (7) is semi-circular and has several safety ropes for connecting to the worker's body.

7. A climbing frame for maintaining wind power equipment with safety protection function according to claim 6, characterized in that, The winding components (2) are symmetrically arranged on both sides of the ladder (1), and the two sets of winding components (2) rotate synchronously.

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