A kind of power plant chimney maintenance platform anti-falling and emergency buffer safety mechanism

Abstract

The utility model provides a kind of power plant chimney maintenance platform anti-falling and emergency buffer safety mechanism, it is related to maintenance platform technical field, comprising: maintenance platform main part, the maintenance platform main part is encased on power plant chimney, and maintenance platform main part below is equipped with climbing ladder, and climbing ladder fixed mounting is on power plant chimney side wall;Maintenance platform main part below is equipped with track assembly, by lower track and upper track and rolling wheel interwork, moving frame can drive second safety rope to move, to adjust second safety rope position according to actual condition, maintenance personnel fall to ground through second safety rope urgently, ensure that personnel quickly and safely evacuate, solve the existing power plant chimney maintenance platform when using, usually utilize climbing ladder to go up and down platform, if emergency maintenance personnel cannot use climbing ladder to reach ground, lead to unable to quickly escape dangerous environment, there is certain security risk problem.

Description

Technical Field

[0001] This utility model relates to the field of maintenance platform technology, and in particular to a fall prevention and emergency buffer safety mechanism for a chimney maintenance platform in a thermal power plant. Background Technology

[0002] A chimney maintenance platform in a thermal power plant is a steel or concrete structure platform that surrounds the outside of the chimney or is located inside it. Its main function is to provide workers with a safe and stable working surface for the inspection and maintenance of the chimney body, lining, lightning protection system, aviation obstruction lights, ladders, and other auxiliary facilities.

[0003] Existing power plant chimney maintenance platforms typically use ladders to access the platform. However, in emergency situations, maintenance personnel may be unable to reach the ground using the ladders, making it difficult to quickly escape the dangerous environment and posing a safety risk. Furthermore, personnel are prone to falling while climbing the ladders. In contrast, the sensors in electronic locking mechanisms are generally slow to respond and have high maintenance costs. Utility Model Content

[0004] This utility model relates to a fall prevention and emergency buffer safety mechanism for a chimney maintenance platform in a thermal power plant. Through the cooperation of the lower and upper rails and rolling wheels, the movable frame can drive the second safety rope to move, thereby adjusting the position of the second safety rope according to the actual situation. Maintenance personnel can use the second safety rope to descend to the ground in an emergency, ensuring the rapid and safe evacuation of personnel.

[0005] This utility model provides a fall prevention and emergency buffer safety mechanism for a maintenance platform of a thermal power plant chimney, specifically including: a maintenance platform body, which is fitted onto the thermal power plant chimney, and a climbing ladder is provided below the maintenance platform body and fixedly installed on the side wall of the thermal power plant chimney; a track assembly is provided below the maintenance platform body and is looped around the thermal power plant chimney; a movable frame is provided on the track assembly; and a second safety rope is provided on the movable frame.

[0006] Furthermore, the main body of the maintenance platform is fixedly equipped with a guardrail on the top, and a fixed support is provided at the bottom of the main body of the maintenance platform. The fixed support is connected to the chimney of the thermal power plant. The main body of the maintenance platform is provided with a platform entrance and exit, and the platform entrance and exit are corresponding to the position of the climbing ladder.

[0007] Furthermore, the climbing ladder is equipped with a protective sleeve, inside which is a first safety rope. The top of the first safety rope is equipped with a connecting frame, which is connected to the guardrail and locked with bolts.

[0008] Furthermore, the first safety rope is fitted with a mounting sleeve, and the mounting sleeve is equipped with a swing frame.

[0009] Furthermore, the track assembly includes a lower track, an upper track, and a positioning frame. The lower track and the upper track are in a ring structure and are distributed in a parallel manner. The positioning frame is provided on the lower track and the upper track and is distributed in a ring array. The positioning frame is connected to the bottom of the main body of the maintenance platform.

[0010] Furthermore, the movable frame is rotatably mounted on two rotating shafts via bearings, and each rotating shaft is equipped with two rolling wheels. The movable frame is located between the lower rail and the upper rail, and the rolling wheels are rotatably connected to the lower rail and the upper rail.

[0011] Furthermore, a supporting base plate is provided below the mobile frame, and a limiting round rod is provided between the supporting base plate and the mobile frame. The limiting round rod is distributed vertically, and a compression spring is fitted on the limiting round rod. A floating frame is provided between the supporting base plate and the mobile frame, and the top end of the second safety rope is connected to the floating frame. The limiting round rod slides through the floating frame, and the compression spring is supported between the floating frame and the supporting base plate.

[0012] Furthermore, the mounting sleeve has two supporting side frames on one side of its outer circumference, and the two supporting side frames are distributed symmetrically. The mounting sleeve has a fixed inner sleeve inside, and the inner wall of one side of the fixed inner sleeve has a groove.

[0013] Furthermore, the swing frame is provided with a connecting collar at the top, a pin on the swing frame, a fixing plate at the bottom of the swing frame, a rotating roller rotatably mounted on the top of the fixing plate, and a limiting block on one side of the fixing plate.

[0014] Furthermore, the swing frame is located between two supporting side frames, and the swing frame is rotatably connected to the supporting side frames via a pin. The limiting block matches the groove, the first safety rope passes through the fixed inner sleeve, and the rotating roller is rotatably connected to the first safety rope.

[0015] This utility model provides a fall prevention and emergency buffer safety mechanism for a chimney maintenance platform in a thermal power plant, which has the following beneficial effects: This utility model includes a track assembly and a movable frame. Through the cooperation of the lower and upper tracks and the rolling wheels, the movable frame can drive the second safety rope to move, thereby adjusting the position of the second safety rope according to the actual situation. Maintenance personnel can use the second safety rope to descend to the ground in an emergency, ensuring the rapid and safe evacuation of personnel. Moreover, a large impact force is generated during the descent, which is buffered by the elasticity of the compression spring, effectively preventing the lower and upper tracks from bending or twisting, and preventing the movable frame and rolling wheels from jamming. The structure is more reasonable.

[0016] Furthermore, this utility model includes a sliding sleeve and a swing frame. When maintenance personnel are climbing up and down the ladder, their safety rope can be connected to the connecting loop. When a person falls, the impact force of the fall is immediately converted into the tension of the connecting loop. This tension forces the swing frame to deflect around the pin. Through the cooperation of the limiting block of the fixed plate and the groove of the fixed inner sleeve, the first safety rope can be locked instantly, and braking can be completed within a very short distance of the person's fall. Its structure is simple and the maintenance cost is also lower. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0019] In the attached diagram: Figure 1 This shows a schematic diagram of the overall axial view structure of this application; Figure 2 This paper shows a schematic diagram of the disassembled structure of the maintenance platform body and track components of this application; Figure 3 A schematic diagram of the moving frame and part of the track assembly structure of this application is shown; Figure 4 A schematic diagram of the movable frame structure of this application is shown; Figure 5 This application shows Figure 1 Enlarged structural diagram of section A in the middle; Figure 6 A cross-sectional view of the mounting sleeve structure of this application is shown.

[0020] List of reference numerals in the attached diagram: 1. Main body of the maintenance platform; 101. Guardrail; 102. Fixed bracket; 103. Platform entrance / exit; 2. Climbing ladder; 201. Protective sleeve; 202. First safety rope; 203. Connecting frame; 3. Track assembly; 301. Lower track; 302. Upper track; 303. Positioning frame; 4. Moving frame; 401. Rotating shaft; 402. Rolling wheel; 403. Support base plate; 404. Limiting round rod; 405. Compression spring; 406. Floating frame; 5. Second safety rope; 6. Installation sliding sleeve; 601. Supporting side frame; 602. Fixed inner sleeve; 603. Groove; 7. Swing frame; 701. Connecting collar; 702. Pin; 703. Fixed plate; 704. Rotating roller; 705. Limiting block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a fall prevention and emergency buffer safety mechanism for a maintenance platform of a thermal power plant chimney, comprising: a maintenance platform body 1, which is fitted onto the thermal power plant chimney, and a climbing ladder 2 is provided below the maintenance platform body 1 and is fixedly installed on the side wall of the thermal power plant chimney; a track assembly 3 is provided below the maintenance platform body 1 and is looped around the thermal power plant chimney; a movable frame 4 is provided on the track assembly 3; and a second safety rope 5 is provided on the movable frame 4. The main body of the maintenance platform 1 is fixedly equipped with a guardrail 101 on the top, and a fixed support 102 is provided at the bottom of the main body of the maintenance platform 1. The fixed support 102 is connected to the chimney of the thermal power plant. The main body of the maintenance platform 1 is provided with a platform entrance 103, and the platform entrance 103 corresponds to the position of the climbing ladder 2. The climbing ladder 2 is equipped with a protective sleeve 201, and a first safety rope 202 is installed inside the protective sleeve 201. A connecting frame 203 is installed at the top of the first safety rope 202, and the connecting frame 203 is connected to the guardrail 101 and locked with bolts.

[0023] In this embodiment, as Figures 2 to 4 As shown, the track assembly 3 includes a lower track 301, an upper track 302, and a positioning frame 303. The lower track 301 and the upper track 302 are in a ring structure, and the lower track 301 and the upper track 302 are distributed in a vertically parallel manner. The positioning frame 303 is provided on the lower track 301 and the upper track 302, and the positioning frame 303 is distributed in a ring array. The positioning frame 303 is connected to the bottom of the maintenance platform body 1. The movable frame 4 is rotatably mounted on two rotating shafts 401 via bearings. Each rotating shaft 401 is equipped with two rolling wheels 402. The movable frame 4 is located between the lower rail 301 and the upper rail 302, and the rolling wheels 402 are rotatably connected to the lower rail 301 and the upper rail 302. A supporting base plate 403 is provided below the movable frame 4, and a limiting rod 404 is provided between the supporting base plate 403 and the movable frame 4. The limiting rod 404 is vertically distributed, and a compression spring 405 is fitted on the limiting rod 404. A floating frame 406 is provided between the supporting base plate 403 and the movable frame 4, and the top end of the second safety rope 5 is connected to the floating frame 406. The limiting rod 404 slides through the floating frame 406, and the compression spring 405 is supported between the floating frame 406 and the supporting base plate 403. In case of emergency, maintenance personnel cannot... When the climbing ladder 2 is used to reach the ground, due to the presence of the track assembly 3 and the moving frame 4, the lower track 301 and the upper track 302 cooperate with the rolling wheel 402. The moving frame 4 can drive the second safety rope 5 to move, thereby adjusting the position of the second safety rope 5 according to the actual situation. Maintenance personnel can use the second safety rope 5 to descend to the ground in an emergency. During the descent, a large impact force will be generated. The elasticity of the compression spring 405 is used to buffer the impact, effectively preventing the lower track 301 and the upper track 302 from bending or twisting.

[0024] Example 2, based on Example 1, such as Figure 5 and Figure 6 As shown, the first safety rope 202 is fitted with a mounting sleeve 6, and the mounting sleeve 6 is equipped with a swing frame 7; The mounting sleeve 6 has two supporting side frames 601 on one side of its outer perimeter, and the two supporting side frames 601 are distributed symmetrically. The mounting sleeve 6 has a fixed inner sleeve 602 inside, and a groove 603 is provided on one side of the inner wall of the fixed inner sleeve 602. The swing frame 7 has a connecting collar 701 at the top, a pin 702 on the swing frame 7, a fixing plate 703 at the bottom of the swing frame 7, a rotating roller 704 rotatably mounted on the top of the fixing plate 703, and a limiting block 705 on one side of the fixing plate 703. The swing frame 7 is located between two supporting side frames 601, and the swing frame 7 is rotatably connected to the supporting side frames 601 via a pin 702. The limiting block 705 matches the groove 603. The first safety rope 202 passes through the fixed inner sleeve 602, and the rotating roller 704 is rotatably connected to the first safety rope 202. This utility model is equipped with a mounting sleeve 6 and a swing frame 7. When maintenance personnel go up and down along the climbing ladder 2, the safety rope they carry can be connected to the connecting collar 701. When a person falls, the impact force of the fall will immediately be converted into the tension of the connecting collar 701. This tension forces the swing frame 7 to deflect around the pin 702 as the axis. Through the cooperation of the limiting block 705 of the fixed plate 703 and the groove 603 of the fixed inner sleeve 602, the first safety rope 202 can be locked instantly, and braking can be completed within a very short distance of the person's fall.

[0025] The working principle of this embodiment is as follows: When maintenance personnel are unable to reach the ground using the climbing ladder 2 in an emergency, the track assembly 3 and the moving frame 4 are provided. Through the cooperation of the lower track 301 and the upper track 302 with the rolling wheel 402, the moving frame 4 can drive the second safety rope 5 to move, thereby adjusting the position of the second safety rope 5 according to the actual situation. Maintenance personnel can then descend to the ground in an emergency using the second safety rope 5. During the process of going up and down the climbing ladder 2, the safety rope carried by the maintenance personnel can be connected to the connecting collar 701. When a person falls, the impact force of the fall will immediately be converted into the tension of the connecting collar 701. This tension forces the swing frame 7 to deflect around the pin 702. Through the cooperation of the limiting block 705 of the fixed plate 703 and the groove 603 of the fixed inner sleeve 602, the first safety rope 202 can be locked instantly, and braking can be completed within a very short distance of the person's fall.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A fall-preventing and emergency buffering safety mechanism for a chimney maintenance platform of a thermal power plant, characterized in that, include: The main body of the maintenance platform (1) is fitted onto the chimney of the thermal power plant, and a climbing ladder (2) is provided below the main body of the maintenance platform (1), and the climbing ladder (2) is fixedly installed on the side wall of the thermal power plant chimney; a track assembly (3) is provided below the main body of the maintenance platform (1), and the track assembly (3) is wrapped around the chimney of the thermal power plant; a moving frame (4) is provided on the track assembly (3); a second safety rope (5) is provided on the moving frame (4).

2. The fall prevention and emergency buffer safety mechanism for a thermal power plant chimney maintenance platform according to claim 1, characterized in that, The main body of the maintenance platform (1) is fixedly equipped with a guardrail (101) on the top, and a fixed bracket (102) is provided at the bottom of the main body of the maintenance platform (1). The fixed bracket (102) is connected to the chimney of the thermal power plant. The main body of the maintenance platform (1) is provided with a platform entrance (103), and the platform entrance (103) corresponds to the position of the climbing ladder (2).

3. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 1, characterized in that, The climbing ladder (2) is provided with a protective sleeve (201), and a first safety rope (202) is provided inside the protective sleeve (201). A connecting frame (203) is provided at the top of the first safety rope (202), and the connecting frame (203) is connected to the guardrail (101) and locked with bolts.

4. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 3, characterized in that, The first safety rope (202) is fitted with a mounting sleeve (6), and the mounting sleeve (6) is provided with a swing frame (7).

5. The fall prevention and emergency buffer safety mechanism for a thermal power plant chimney maintenance platform according to claim 1, characterized in that, The track assembly (3) includes a lower track (301), an upper track (302), and a positioning frame (303). The lower track (301) and the upper track (302) are ring structures, and the lower track (301) and the upper track (302) are distributed in a parallel manner. The positioning frame (303) is provided on the lower track (301) and the upper track (302), and the positioning frame (303) is distributed in a ring array. The positioning frame (303) is connected to the bottom of the main body (1) of the maintenance platform.

6. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 1, characterized in that, The movable frame (4) is rotatably mounted on two rotating shafts (401) via bearings. Each rotating shaft (401) is provided with two rolling wheels (402). The movable frame (4) is located between the lower rail (301) and the upper rail (302), and the rolling wheels (402) are rotatably connected to the lower rail (301) and the upper rail (302).

7. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 6, characterized in that, The mobile frame (4) is provided with a support base plate (403) below it, and a limiting rod (404) is provided between the support base plate (403) and the mobile frame (4). The limiting rod (404) is distributed vertically, and a compression spring (405) is fitted on the limiting rod (404). A floating frame (406) is provided between the support base plate (403) and the mobile frame (4), and the top of the second safety rope (5) is connected to the floating frame (406). The limiting rod (404) slides through the floating frame (406), and the compression spring (405) is supported between the floating frame (406) and the support base plate (403).

8. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 4, characterized in that, The mounting sleeve (6) has two support side frames (601) on one side of its outer circumference, and the two support side frames (601) are distributed symmetrically. The mounting sleeve (6) has a fixed inner sleeve (602) inside, and a groove (603) is provided on one side of the inner wall of the fixed inner sleeve (602).

9. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 8, characterized in that, The swing frame (7) has a connecting collar (701) at the top, a pin (702) on the swing frame (7), a fixing plate (703) at the bottom, a rotating roller (704) on the top of the fixing plate (703), and a limiting block (705) on one side of the fixing plate (703).

10. The anti-falling and emergency buffer safety mechanism of a chimney maintenance platform of a thermal power plant according to claim 9, characterized in that, The swing frame (7) is located between two support side frames (601), and the swing frame (7) is rotatably connected to the support side frame (601) via a pin (702). The limiting block (705) matches the groove (603). The first safety rope (202) passes through the fixed inner sleeve (602), and the rotating roller (704) is rotatably connected to the first safety rope (202).

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