Rope winding vertical shaft safety door structure capable of automatically adjusting balance
By using a single wire rope in the vertical shaft safety door and equipping it with balancing and lubrication components, the problem of shortened lifespan caused by differences in wire rope elongation was solved, resulting in more stable and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-31
AI Technical Summary
In existing shaft safety door structures, the steel wire rope experiences increased resistance and shortened service life due to differences in its elongation and contraction, and the slide rail wears out faster, affecting the normal use of the safety door.
A single steel wire rope suspension method is adopted, and a balancing component and a lubrication component are added to one side of the counterweight, including rollers and guide rollers. The rollers automatically adjust the balance to reduce friction, and the surface of the steel wire rope is coated with lubricant to reduce resistance.
It extends the service life of the wire rope, reduces friction, improves operational stability, lowers maintenance costs, and increases production efficiency.
Smart Images
Figure CN224062253U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vertical shaft safety facilities, and in particular relates to a rope-wound vertical shaft safety door structure with automatic adjustment and balance. Background Technology
[0002] A shaft safety door is a safety facility specifically designed for shaft openings. It is widely used in shaft engineering in industries such as construction, mining, and power. Safety doors are often used in conjunction with cages, wire ropes, and counterweights to achieve the purpose of closing the safety door when the cage moves upward, loading the cage, and opening the safety door when the cage is loaded. The opening and closing of the safety door is achieved by moving the cage up and down, which is simple and reliable.
[0003] In actual use, the existing vertical shaft safety door structure has four safety doors. Each door has a steel wire rope on each side, which is connected by pulleys and counterweights. When the cage is pressing the safety door downward, the difference in the extension and contraction of the steel wire ropes on both sides of the safety door causes the length of the steel ropes on both sides of the safety door to differ after a period of operation. This causes the safety door and counterweight to run against the resistance in the slide, which ultimately leads to accelerated wear of the slide, reduced service life of the steel wire ropes, and affects the normal use of the safety door.
[0004] To address these issues, we provide an automatically balancing rope shaft safety door structure. Utility Model Content
[0005] The purpose of this invention is to provide an automatic balance-adjusting safety door structure for rope shafts. By combining the balancing component and the lubrication component, it solves the problem that the resistance of the wire rope increases after long-term use, leading to a shortened service life of the wire rope in the existing safety door structure.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0007] This utility model relates to an automatically balancing rope-wound shaft safety door structure, comprising a safety door body, a wellhead frame on the surface of the safety door body, a counterweight on one side of the safety door body, a balancing component on one side of the counterweight, the balancing component including a groove formed on one side of the counterweight, a roller movably connected to one side of the groove, a lubrication component on one side of the counterweight, the lubrication component including a housing located on one side of the safety door body, a guide roller movably connected to one side of the housing, and a protective component on the surface of the counterweight, the protective component including a protective box located on the surface of the counterweight, a base plate fixedly connected to the bottom of the protective box, the protective component protecting the counterweight.
[0008] The present invention is further configured such that the lubrication assembly includes a scraper, which is fixedly connected to one side of the inside of the housing.
[0009] The present invention is further configured such that a steel wire rope is provided on the top of the safety door body, and a crossbar is fixedly connected to one side of the wellhead frame.
[0010] The present invention is further configured such that a guide wheel is movably connected to the surface of the crossbar, and the guide wheel is in contact with the wire rope.
[0011] The present invention is further configured such that a mounting plate is fixedly connected to one side of the wellhead frame, the mounting plate has a mounting hole on its top, and the mounting plate is fixedly connected to the base plate.
[0012] The present invention is further configured such that a slider is fixedly connected to one side of the safety door body, and the slider is slidably connected to the wellhead frame.
[0013] The present invention is further configured such that a maintenance plate is fixedly connected to one side of the protective box by bolts, and a pressure plate is fixedly connected to one side of the safety door body.
[0014] This invention has the following advantages: By using a single steel wire rope, it avoids the problem of different wire rope elongation, which leads to a shortened lifespan, caused by using two steel wire ropes for suspension. Furthermore, by adding a pulley on one side of the counterweight, the counterweight can automatically adjust its balance during suspension, maintaining a horizontal state, ensuring stable operation, and reducing friction. At the same time, by applying lubricant to the surface of the steel wire rope, resistance is reduced, decreasing the friction between the steel wire rope and the slide rail, thus extending the service life of the steel wire rope. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0016] Figure 1 This is a three-dimensional diagram of a rope-wound shaft safety door structure that automatically adjusts its balance.
[0017] Figure 2 This is a cross-sectional view of the protective box in a rope-wound shaft safety door structure that automatically adjusts its balance.
[0018] Figure 3 This is a cross-sectional view of the shell in a rope-wound shaft safety door structure that automatically adjusts its balance.
[0019] Figure 4 This is a top view of a rope-wound shaft safety door structure that automatically adjusts its balance.
[0020] Figure 5 This is a diagram showing the downward state of the safety door body in a rope-wound shaft safety door structure that automatically adjusts its balance.
[0021] Figure 6 Rear sectional view of the protective box in a rope-wound shaft safety door structure with automatic balance adjustment.
[0022] In the attached diagram: 1. Safety door body; 2. Wellhead frame; 3. Counterweight; 4. Groove; 5. Roller; 6. Housing; 7. Guide roller; 8. Protective box; 9. Base plate; 10. Scraper; 11. Wire rope; 12. Guide wheel; 13. Inspection plate; 14. Pressure plate; 15. Mounting plate; 16. Mounting hole; 17. Crossbar. Detailed Implementation
[0023] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1
[0025] Please see Figure 1-6 This utility model is an automatic adjustment and balance-adjusting safety door structure for a rope-wound vertical shaft, including a safety door body 1, a wellhead frame 2 on the surface of the safety door body 1, a counterweight 3 on one side of the safety door body 1, a balancing component on one side of the counterweight 3, the balancing component including a groove 4, the groove 4 being formed on one side of the counterweight 3, a roller 5 being movably connected inside one side of the groove 4, a lubrication component on one side of the counterweight 3, the lubrication component including a housing 6, the housing 6 being located on one side of the safety door body 1, a guide roller 7 being movably connected inside one side of the housing 6, and a protective component on the surface of the counterweight 3, the protective component including a protective box 8, the protective box 8 being located on the surface of the counterweight 3, a base plate 9 being fixedly connected to the bottom of the protective box 8, and the protective component protecting the counterweight 3.
[0026] Specifically: The safety door body 1 is a door used to provide safety protection. It is usually used to prevent unauthorized personnel from entering certain areas or to prevent dangerous events from occurring. It has different designs and functions in different application environments and is a mature technology. The safety door body 1 is in contact with the wellhead frame 2. The wellhead frame 2 can limit the safety door body 1, making the safety door body 1 more stable when moving up or down. The cage used in conjunction with the safety door body 1 is located above the safety door. When the cage moves down, it will press down the pressure plate 14 to drive the safety door body 1 down and open it. The shell 6 stores lubricating fluid for lubrication. The roller 5 and the counterweight 3 and the guide roller 7 and the shell 6 are all connected by bearings. The shell 6 is fixedly connected to the protective box 8. One side of the counterweight 3 is in contact with the inside side of the protective box 8, which can ensure that the counterweight 3 will not swing left or right when moving up or down.
[0027] Example 2
[0028] Please see Figure 1-6Based on Embodiment 1, the lubrication assembly further includes a scraper 10, which is fixedly connected to one side of the interior of the housing 6. A steel wire rope 11 is provided on the top of the safety door body 1. A crossbar 17 is fixedly connected to one side of the wellhead frame 2. A guide wheel 12 is movably connected to the surface of the crossbar 17. The guide wheel 12 is in contact with the steel wire rope 11. An installation plate 15 is fixedly connected to one side of the wellhead frame 2. An installation hole 16 is provided on the top of the installation plate 15. The installation plate 15 is fixedly connected to the base plate 9. A slider is fixedly connected to one side of the safety door body 1. The slider is slidably connected to the wellhead frame 2. An inspection plate 13 is fixedly connected to one side of the protective box 8 by bolts. A pressure plate 14 is fixedly connected to one side of the safety door body 1.
[0029] Specifically: The scraper 10 has a through groove at the top to ensure the normal movement of the wire rope 11 and to scrape off excess lubricant from its surface, preventing lubricant from dripping everywhere and saving resources. One end of the wire rope 11 is looped around the connecting buckle surface at the top of the safety gate body 1, and the other end is rectangular around the surface of the counterweight 3 and in contact with the roller 5. The middle part is located at the top of the guide wheel 12 and the bottom of the guide roller 7, and in contact with the guide wheel 12 and the guide roller 7. The guide wheel 12 is movably connected to the surface of the crossbar 17 through a bearing. A sliding groove adapted to the slider is opened on one side of the vertical shaft frame to limit the safety gate body 1. A drain pipe is connected to one side of the housing 6, and a pipe cap is threaded on the surface of the drain pipe. A through hole for the movement of the wire rope 11 is opened at the top of the protective box 8.
[0030] The working principle of this utility model is as follows: the entire mechanism is installed in the required position through the mounting plate 15 and the mounting hole 16. The traditional method of suspending one side of a single door by two steel wire ropes 11 is changed to suspending it by a single steel wire rope 11. This effectively avoids the problem that the two steel wire ropes 11 will have different degrees of expansion and contraction after long-term use, which will shorten the service life of the steel wire rope 11.
[0031] When the cage at the top of the safety gate body 1 descends, it will press down on the pressure plate 14, causing the safety gate body 1 to move downwards to open the safety gate body 1. At this time, the counterweight 3 is driven upwards by the wire rope 11. When the counterweight 3 moves upwards, since its two sides are in contact with the protective box 8, there will be no left and right swinging. The front and back directions are automatically adjusted by the roller 5 to make the counterweight 3 move upwards more smoothly and reduce the friction caused by the swing of the wire rope 11 on the surface of the guide wheel 12.
[0032] When the counterweight 3 moves upward, the wire rope 11 moves, and its surface is coated with lubricant inside the housing 6. Under the action of the lubricant, the wire rope 11 moves more smoothly, and the friction between it and the guide wheel 12 is reduced, which extends the service life of the wire rope 11, thereby reducing downtime, lowering maintenance costs, and improving production efficiency.
[0033] All standard parts used in this utility model can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.
[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A self-adjusting balanced roped shaft safety door structure comprising a safety door body (1), characterized by: The safety door body (1) surface is provided with well mouth frame (2), one side of the safety door body (1) is provided with counterweight (3); One side of the counterweight (3) is provided with a balance assembly, the balance assembly comprises a groove (4), the groove (4) is opened in one side of the counterweight (3), the groove (4) is movably connected with a roller (5) on one side of the groove (4), one side of the counterweight (3) is provided with a lubricating assembly, the lubricating assembly comprises a housing (6), the housing (6) is located on one side of the safety door body (1), a guide roller (7) is movably connected on one side of the housing (6); The surface of the counterweight (3) is provided with a protection assembly, the protection assembly comprises a protection box (8), the protection box (8) is located on the surface of the counterweight (3), the bottom of the protection box (8) is fixedly connected with a bottom plate (9), the counterweight (3) is protected by the protection assembly.
2. A self-balancing rope hoist door structure according to claim 1, wherein: The lubricating assembly further comprises a scraper (10), the scraper (10) is fixedly connected with one side of the housing (6).
3. A self-balancing rope hoist door structure according to claim 1, wherein: The safety door body (1) top is provided with a steel wire rope (11), one side of the well mouth frame (2) is fixedly connected with a cross rod (17).
4. A self-balancing rope hoist door structure according to claim 3, wherein: The surface of the cross rod (17) is movably connected with a guide wheel (12), the guide wheel (12) is in contact with the steel wire rope (11).
5. A self-balancing rope hoist door structure according to claim 1, wherein: One side of the well mouth frame (2) is fixedly connected with a mounting plate (15), the mounting plate (15) is provided with a mounting hole (16) on the top, and the mounting plate (15) is fixedly connected with the bottom plate (9).
6. A self-balancing rope hoist door structure according to claim 1, wherein: One side of the safety door body (1) is fixedly connected with a sliding block, and the sliding block is slidably connected with the well mouth frame (2).
7. A self-balancing rope hoist door structure according to claim 1, wherein: One side of the protection box (8) is fixedly connected with an inspection plate (13) through bolts, and one side of the safety door body (1) is fixedly connected with a pressure plate (14).