Mining falling protector

Abstract

The utility model discloses a mining falling protector which comprises a mine box, a lifting main rod is fixedly connected to the top end of the mine box in an inserted mode, multiple installation blocks are fixedly installed on the two sides of the lifting main rod, a first rotating shaft is fixedly installed between every two adjacent installation blocks, connecting blocks are fixedly connected to the outer sides of the first rotating shafts, and the connecting blocks are fixedly connected to the top end of the mine box. A second rotating shaft is movably installed in the middle of the connecting block, a first brake block is fixedly installed at the end, away from the first rotating shaft, of the connecting block, an inserting block is fixedly and vertically installed at the position, close to the first brake block, of the top end of the connecting block, and the inserting block is matched with the falling protector. Through the inserting block at one end of the connecting block and the first brake block, the inserting block can be automatically inserted into the falling protector for braking under the condition that the mine box lacks lifting force, and supporting force can be provided for the mine box through cooperation of the first brake block and the second brake block, so that the pressure of the falling protector is reduced, and two-layer anti-falling protection is provided.

Description

Technical Field

[0001] This utility model relates to the technical field of mine fall arresters, and in particular to a mine fall arrester. Background Technology

[0002] Fall arresters, also known as speed differential devices, can quickly brake and lock falling objects within a limited distance. They are suitable for cargo hoisting, protecting the lives of ground operators and preventing damage to the hoisted workpiece. Fall arresters utilize the speed difference of falling objects for self-control and can be used at a high altitude.

[0003] Fall arresters play a crucial protective role in various high-hanging, low-use applications. In mines, ore boxes are often used to transport minerals. However, if the ore box falls rapidly during transport due to damage to the hoisting rod or rope, a fall arrester is needed to prevent it from hitting miners. Typically, fall arresters only brake based on whether the suspended object is in a state of weightlessness. If the hoisting rod of the ore box lacks some lifting power, it may fall at a constant speed in a non-weightless state, and the fall arrester may not function.

[0004] Therefore, we propose a mine fall arrestor. Utility Model Content

[0005] The main purpose of this utility model is to provide a mine fall arrestor. By connecting the plug at one end of the connecting block and the first braking block, the plug can be automatically inserted into the inside of the fall arrestor to brake when the mine box lacks lifting force. The cooperation of the first braking block and the second braking block can provide support force to the mine box, thereby reducing the pressure on the fall arrestor and providing two layers of fall protection, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A mine fall arrestor includes a mine box, a lifting main rod is fixedly inserted into the top of the mine box, and mounting blocks are fixedly installed on both sides of the lifting main rod. The mounting blocks are provided in multiple locations, and a first rotating shaft is fixedly installed between two adjacent mounting blocks.

[0008] A connecting block is fixedly connected to the outer side of the first rotating shaft, and a second rotating shaft is movably installed in the middle of the connecting block. A first braking block is fixedly installed at the end of the connecting block away from the first rotating shaft, and an insert block is fixedly and vertically installed at the top of the connecting block near the first braking block. The insert block is adapted to the fall arrester.

[0009] Furthermore, the fall arrestor is provided in two locations, with the two fall arrestors fixedly installed on both sides of the mine box respectively. A brake gear and a third brake block are fixedly installed inside the fall arrestor.

[0010] Furthermore, steel ropes are provided on both sides of the ore box, with one end of each steel rope passing through the fall arrestor and the connecting block in sequence, and the steel ropes located between the brake gear and the third brake block.

[0011] Furthermore, limit blocks are fixedly installed on both inner walls of the ore box. There are multiple limit blocks, and the two ends of the second rotating shaft are fixedly connected to the sides of two adjacent limit blocks that are close to each other.

[0012] Furthermore, the top end of the connecting block is fixedly connected to the bottom end of the connecting rod, the top end of the connecting rod passes through the bottom end of the spring column and is fixedly connected to the top end of the spring column, and support blocks are fixedly installed on the inner walls of both sides of the ore box, with the spring column fixedly installed on the top end of the support block.

[0013] Furthermore, the ore box is movably installed inside the mine shaft, and the inner wall of the mine shaft is fixedly equipped with a second braking block. The second braking block has multiple locations and is adapted to the first braking block.

[0014] Furthermore, cavities are provided on both sides of the ore box for the installation and insertion of connecting blocks, and the cavities are located below the fall arrestor.

[0015] Compared with the prior art, the present invention has the following advantages: by connecting the plug at one end of the connecting block and the first braking block, the plug can be automatically inserted into the inside of the fall arrestor to brake when the mine box lacks lifting force. The cooperation of the first braking block and the second braking block can provide support force for the mine box, thereby reducing the pressure on the fall arrestor and providing a second layer of fall protection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a mine fall arrestor according to the present invention.

[0017] Figure 2 This is a schematic diagram of the braking plane structure of a mine fall arrestor according to the present invention.

[0018] Figure 3 This is a schematic diagram of the non-braking planar structure of a mine fall arrestor according to the present invention.

[0019] Figure 4 This is a schematic diagram of the connecting block structure of a mine fall arrestor according to the present invention.

[0020] Figure 5 This is a schematic diagram of the limiting block structure of a mine fall arrestor according to the present invention.

[0021] In the diagram: 1. Mine box; 2. Steel rope; 3. Fall arrestor; 4. Spring column; 5. Cavity; 6. Mounting block; 7. First rotating shaft; 8. Connecting block; 9. Insert block; 10. First braking block; 11. Mine shaft; 12. Support block; 13. Connecting rod; 14. Limiting block; 15. Second rotating shaft; 16. Second braking block; 17. Third braking block; 18. Brake gear; 19. Lifting main rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-5 As shown, a mine fall arrestor includes a mine box 1, a lifting main rod 19 is fixedly inserted into the top of the mine box 1, and mounting blocks 6 are fixedly installed on both sides of the lifting main rod 19. The mounting blocks 6 are provided in multiple places, and a first rotating shaft 7 is fixedly installed between two adjacent mounting blocks 6.

[0024] A connecting block 8 is fixedly connected to the outer side of the first rotating shaft 7. A second rotating shaft 15 is movably installed in the middle of the connecting block 8. A first braking block 10 is fixedly installed at the end of the connecting block 8 away from the first rotating shaft 7. An insert block 9 is fixedly and vertically installed at the top of the connecting block 8 near the first braking block 10. The insert block 9 is adapted to the fall arrester 3. When the connecting block 8 is in a downward tilted state, the insert block 9 and the first braking block 10 will not collide with the second braking block 16. There are two fall arresters 3. The two fall arresters 3 are fixedly installed on both sides of the mine box 1. A brake gear 18 and a third braking block 17 are fixedly installed inside the fall arrester 3. Steel ropes 2 are provided on both sides of the mine box 1. One end of the steel rope 2 passes through the fall arrester 3 and the connecting block 8 in sequence. The steel rope 2 is located between the brake gear 18 and the third braking block 17.

[0025] Limiting blocks 14 are fixedly installed on both inner walls of the ore box 1. The limiting blocks 14 are used to limit the tilt angle of the connecting block 8. There are multiple limiting blocks 14. The two ends of the second rotating shaft 15 are fixedly connected to the sides of two adjacent limiting blocks 14 that are close to each other. The top end of the connecting block 8 is fixedly connected to the bottom end of the connecting rod 13. The top end of the connecting rod 13 passes through the bottom end of the spring column 4 and is fixedly connected to the top end of the spring column 4. Support blocks 12 are fixedly installed on both inner walls of the ore box 1. The spring column 4 is fixedly installed on the top end of the support block 12.

[0026] The ore box 1 is movably installed inside the mine shaft 11. The inner wall of the mine shaft 11 is fixedly installed with a second brake block 16. The second brake block 16 has multiple locations and is adapted to the first brake block 10. A cavity 5 is opened on both sides of the ore box 1. The cavity 5 is used for the installation and insertion of the connecting block 8. The cavity 5 is located below the fall arrestor 3.

[0027] It should be noted that this utility model is a mine fall arrestor. First, two connecting blocks 8 are installed on both sides of the lifting main rod 19 via a first rotating shaft 7. The two ends of the second rotating shaft 15 in the middle of the connecting block 8 are connected to the two adjacent limiting blocks 14 on their close sides. The end of the connecting block 8 with the insert 9 and the first brake block 10 passes through the cavity 5, so that the end of the connecting block 8 with the insert 9 and the first brake block 10 is tilted downwards and exposed on the outside of the mine box 1, and located directly below the fall arrestor 3. When the connecting block 8 is in the downward tilted state, the insert 9 and the first brake block 10 will not collide with the second brake block 16. Since multiple second brake blocks 16 are installed on the inner wall of the mine shaft 11, when the lifting force of the lifting main rod 19 is insufficient, the compressed spring column 4 will gradually recover. The connecting rod 13 is lifted upwards, which in turn lifts the connecting block 8 upwards until it is horizontal. When the connecting block 8 is horizontal, the insert 9 first inserts into the bottom of the fall arrestor 3, causing the brake gear 18 to move closer to the third brake block 17, thereby squeezing and braking the steel rope 2. Subsequently, the first brake block 10 and the second brake block 16 on the inner wall of the mine 11 will also cooperate to provide an upward support force for the ore box 1, stopping the ore box 1 from falling. When the lifting rod 19 resumes its lifting force, the connecting block 8 tilts downwards through the cooperation of the first rotating shaft 7 and the second rotating shaft 15. The spring column 4 is compressed by the downward force of the connecting rod 13, thereby restoring the ability of the ore box 1 to move up and down.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mine fall arrester comprising a mine box (1), characterized in that, The top end of the ore box (1) is fixedly inserted with a lifting main rod (19), both sides of the lifting main rod (19) are fixedly installed with mounting blocks (6), the mounting blocks (6) are provided in multiple places, and a first rotating shaft (7) is fixedly installed between adjacent two mounting blocks (6). The outer side of the first rotating shaft (7) is fixedly connected with a connecting block (8), the middle part of the connecting block (8) is movably installed with a second rotating shaft (15), one end of the connecting block (8) away from the first rotating shaft (7) is fixedly installed with a first brake block (10), and the top end of the connecting block (8) is fixedly and vertically installed with an insertion block (9) close to the first brake block (10). The insertion block (9) is matched with the fall arrest device (3).

2. The mine falling protector according to claim 1, characterized in that: The fall arrest device (3) is provided in two places, and the two fall arrest devices (3) are fixedly installed on both sides of the ore box (1), respectively. The inside of the fall arrest device (3) is fixedly installed with a brake gear (18) and a third brake block (17).

3. The mine use anti-falling device according to claim 1, characterized in that: Both sides of the ore box (1) are provided with steel ropes (2), one end of the steel rope (2) passes through the fall arrest device (3) and the connecting block (8) in sequence, and the steel rope (2) is located between the brake gear (18) and the third brake block (17).

4. The mine use anti-falling device according to claim 1, characterized in that: The inner walls of both sides of the ore box (1) are fixedly installed with limiting blocks (14), the limiting blocks (14) are provided in multiple places, and both ends of the second rotating shaft (15) are fixedly connected with the sides of adjacent two limiting blocks (14) close to each other.

5. The mine use anti-falling device according to claim 1, characterized in that: The top end of the connecting block (8) is fixedly connected with the bottom end of the connecting rod (13), the top end of the connecting rod (13) passes through the bottom end of the spring column (4) and is fixedly connected with the top end of the spring column (4), the inner walls of both sides of the ore box (1) are fixedly installed with supporting blocks (12), and the spring column (4) is fixedly installed on the top end of the supporting block (12).

6. The mine use anti-falling device according to claim 1, characterized in that: The ore box (1) is movably installed in the mine (11), the inner walls of the mine (11) are fixedly installed with second brake blocks (16), the second brake blocks (16) are provided in multiple places and matched with the first brake blocks (10).

7. The mine use anti-falling device according to claim 1, characterized in that: Both sides of the ore box (1) are provided with cavities (5), the cavities (5) are used for mounting and inserting the connecting block (8), and the cavities (5) are located below the fall arrest device (3).

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