Cage lifting anti-falling protection device for coal mine

Abstract

The invention relates to the technical field of anti-falling protection devices, and discloses a cage lifting anti-falling protection device for a coal mine, which comprises a hoistway main body, the outer side of the hoistway main body is rotatably connected with a hoistway door through a rotating shaft, and the outer side of the hoistway door is fixedly provided with a connecting handle; the device is provided with the anti-falling protection mechanism, if the situation that the lifting rope body is broken occurs, the situation that the cage body is unbalanced is avoided through limiting of the guide frame in the hoistway body, meanwhile, the anti-falling supporting frame can be clamped into the corresponding anti-falling connecting groove to complete supporting and locking, the cage body is limited to the current position, and therefore the lifting rope body is prevented from being damaged. The anti-falling protection effect is achieved, and timely protection can be achieved; the device is provided with a reinforcing protection mechanism, reinforcing of the connecting portion of the supporting limiting frame and the cage body is conveniently completed, the connecting strength of the connecting portion can be improved after the supporting limiting frame and the cage body are fixed, and the safety performance of the cage body is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-fall protection devices, and in particular to an anti-fall protection device for cage hoisting in coal mines. Background Art

[0002] Coal mines are reasonable spaces dug by humans when they dig geological layers rich in coal. They usually include tunnels, shafts, and mining faces, etc. Coal is the main solid fuel and a type of combustible organic rock. It is formed by lush plants that grow in a certain geological age. In a suitable geological environment, they gradually accumulate into thick layers and are buried in the bottom of water or mud. After a long geological period of natural coalification, the carbon content of coal is generally 46-97%, and it is brown to black with a dull to metallic luster. According to the degree of coalification, coal can be divided into four categories: peat, lignite, bituminous coal, and anthracite. In the process of coal mining, cages are used. Cages are a kind of mine hoisting container used to transport personnel, ores, equipment, materials, etc. They can generally carry several tons and have similar uses to elevators. The main body is composed of upper, middle, and lower plates, car blockers, and columns. The connection between the suspension device and the main body is directly connected, that is, the main and auxiliary suspension rods and the four corner plates are cancelled, and the suspension device is directly connected to the main beam, which not only reduces the height of the cage and the height of the well tower, but also greatly reduces the weight of the main body. The structure is simple and easy to install. The upper plate is the main load-bearing part of the cage. It bears the entire load weight of the cage, the weight of the equipment, the weight of the tail rope, and the friction resistance between the roller and the tankway during operation. Therefore, the material selection and process requirements are very strict. The main beam is the main load-bearing part of the cage. During manufacturing, it is necessary to pay attention to the rolling direction of the steel plate to be consistent with the force direction, and a machining allowance of 10~20mm is reserved around the periphery. The flaw detection inspection is strictly carried out in accordance with the relevant standards. Only after passing the inspection can it be assembled and formed. The car blocker adopts the rail surface convex block car blocker and the sliding car blocker, which is used in conjunction with the pin gear car handling equipment.

[0003] A Chinese patent discloses a cage lifting anti-falling protection device for polymetallic mines (authorization announcement number CN210103225 U). The patented technology includes a cage body, a lifting ring is fixedly connected to the middle position of the top of the cage body, a steel wire rope is connected to the lifting ring, the outer ring of the steel wire rope is sleeved with a fixed frame of a U-shaped structure fixedly connected to the top of the cage body, and the inner part of the fixed frame is fixedly sleeved with two groups of parallel cross bars, and the two groups of cross bars are located on both sides of the steel wire rope, and the outer rings of the two groups of cross bars are movably sleeved with two groups of protective mechanisms symmetrically arranged along them. The present invention can buffer the cage to prevent it from falling when the steel wire rope of the cage breaks, protect the safety of people and items inside the cage, improve the safety performance of the cage, reduce the cage falling accident caused by the breaking of the steel wire rope, and at the same time, buffer the force when falling, so that the cage runs smoothly and reduces the panic of people when breaking.

[0004] However, during the use of the above anti-fall protection device, if the wire rope breaks, it may not be able to provide protection in time, the reaction time is long, the anti-fall protection effect is limited, and there is a problem of affecting the protection effect. Therefore, those skilled in the art provide a cage hoisting anti-fall protection device for coal mines to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a cage hoisting anti-falling protection device for coal mines to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A cage lifting anti-fall protection device for coal mines comprises a shaft body, the outer side of the shaft body is rotatably connected to a shaft door through a rotating shaft, a connecting handle is fixed to the outer side of the shaft door, a supporting mounting pad is fixed to the top of the shaft body, a mounting motor is arranged on the top of the supporting mounting pad, a supporting metal frame is fixed to the top of the shaft body, a winding roller is fixedly installed on the outer side of the output shaft of the mounting motor, and a lifting rope body is arranged on the outer side of the winding roller, one end of the lifting rope body is connected to an anti-fall protection mechanism, the bottom of the anti-fall protection mechanism is connected to the cage body, a reinforcing protection mechanism is arranged on the top of the cage body, guide frames are fixed to both sides of the cage body, a connecting door is hinged on the outer side of the cage body through hinges, limited position through grooves are arranged on both sides of the anti-fall protection mechanism, and a plurality of anti-fall connecting grooves are arranged inside the shaft body; The cam is secured to the bottom of the chassis and is provided with a plurality of camshafts, each of which is secured with a plurality of camshafts, each of which is secured with a plurality of camshafts.

[0007] As a further solution of the present invention: a mounting hole matching the size of the supporting connecting frame is opened inside the supporting limiting frame, a limiting pad is fixed to the outside of the supporting connecting frame, the supporting connecting frame and the lifting rope body are fixedly connected, one end of the torsion spring is connected to the mounting connecting bolt, and the other end of the torsion spring is connected to the rotating connecting frame.

[0008] As a further solution of the present invention: the size of the limiting through groove is adapted to the size of the anti-falling support frame, and a through groove is opened inside the protective shell, and the size of the through groove is adapted to the size of the anti-falling support frame.

[0009] As a further solution of the present invention: a threaded hole is provided inside the metal threaded sleeve, and a threaded matching component is formed between the threaded hole and the mounting connecting bolt.

[0010] As a further solution of the present invention: a groove for accommodating the movement of the metal limit frame and the bracket connector is opened inside the protection connection shell, and the rotating connection frame and the anti-fall support frame are welded and fixed.

[0011] As a further solution of the present invention: the reinforcement protection mechanism includes a reinforcement cast iron plate, a fixed semi-threaded rod is fixed on the top of the reinforcement cast iron plate, a guide connection groove is opened on the top of the cage body, the cage body is slidably connected with a guide slider through the guide connection groove, a reinforcement cast iron sleeve is fixed on one side of the guide slider, a movable semi-threaded rod is fixed on the top of the reinforcement cast iron sleeve, the outer sides of the fixed semi-threaded rod and the movable semi-threaded rod are movably sleeved with a positioning connection sleeve, and the outer sides of the fixed semi-threaded rod and the movable semi-threaded rod are threadedly connected with a positioning threaded sleeve As a further solution of the present invention: the reinforcing cast iron plate and the supporting limit frame are fixedly connected, and the lower bottom surface of the reinforcing cast iron plate is in contact with the upper top surface of the cage body.

[0012] As a further solution of the present invention: the radius size of the fixed semi-threaded rod is equal to the radius size of the movable semi-threaded rod, and the outer side of the positioning threaded sleeve is provided with anti-slip grooves.

[0013] As a further solution of the present invention: a groove is provided inside the reinforced cast iron sleeve, and the size of the groove is adapted to the size of the reinforced cast iron plate.

[0014] As a further solution of the present invention: the corresponding surface of the movable semi-threaded rod is fitted with the corresponding surface of the fixed semi-threaded rod, and the positioning threaded sleeve and the movable semi-threaded rod and the fixed semi-threaded rod are threaded matching components.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The device is equipped with an anti-fall protection mechanism. If the lifting rope body breaks, the guide frame is used to limit the position in the hoistway body to avoid the imbalance of the cage body. At the same time, the anti-fall support frame can be inserted into the corresponding anti-fall connection groove to complete the support and locking, so that the cage body is limited in the current position, achieving the anti-fall protection effect, and can provide timely protection without skewing or affecting the protection effect. It has a good anti-fall protection effect and improves the installation performance of the cage when it is used; 2. The device is provided with a reinforcement protection mechanism. When the support and limit frame and the tank cage body are fixedly connected, a reinforced cast iron plate is fixed on the outside of the support and limit frame. The positioning threaded sleeve can be threadedly connected with the fixed semi-threaded rod and the movable semi-threaded rod, so as to conveniently complete the reinforcement of the connection part between the support and limit frame and the tank cage body. After the support and limit frame and the tank cage body are fixed, the connection strength of the connection part can be improved, thereby further improving the safety performance of the tank cage body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a cage hoisting anti-fall protection device used in coal mines; Figure 2 It is a side view of a cage lifting anti-fall protection device used in coal mines; Figure 3 It is a front view of a cage lifting anti-fall protection device used in coal mines; Figure 4 It is a partial structural cross-sectional view of a shaft main body in a cage hoisting anti-fall protection device used in coal mines; Figure 5 It is a schematic diagram of the outer structure of a cage main body in a cage lifting anti-fall protection device used in coal mines; Figure 6 It is a three-dimensional diagram of the outer side of a cage body in a cage lifting and anti-falling protection device used in coal mines; Figure 7 It is a top view of a cage main body in a cage lifting and anti-falling protection device used in coal mines; Figure 8 It is a structural schematic diagram of an anti-fall protection mechanism in a cage hoisting anti-fall protection device used in coal mines; Fig. 9 It is a top view of a protective connection shell in a cage hoisting anti-fall protection device used in coal mines; Fig.10 It is a schematic diagram of the outer structure of the protective connection shell in a cage hoisting anti-fall protection device used in coal mines; Fig.11 It is a front view of a reinforcement protection mechanism in a cage lifting anti-fall protection device used in coal mines; Fig.12The present invention is a schematic diagram of the structure of the outer part of a reinforcement protection mechanism in a cage hoisting anti-fall protection device used in coal mines.

[0017] In the figure: 1. hoistway body; 2. hoistway door; 3. connection handle; 4. support installation pad; 5. motor installation; 6. support metal frame; 7. lifting rope body; 8. anti-fall connection groove; 9. anti-fall protection mechanism; 91. support connection frame; 92. support limit frame; 93. fixed support frame; 94. rotating assembly frame; 95. protection connection shell; 96. metal limit frame; 97. bracket connector; 98. pull connection block; 99. rotating connection frame; 910. anti-fall support frame; 911. fixed Connecting plate; 912, metal threaded sleeve; 913, torsion spring; 914, installation connecting bolt; 915, limit installation sleeve; 916, protective shell; 10, cage body; 11, reinforcement protection mechanism; 111, reinforcement cast iron plate; 112, fixed semi-threaded rod; 113, guide groove; 114, guide slider; 115, reinforcement cast iron sleeve; 116, movable semi-threaded rod; 117, positioning connecting sleeve; 118, positioning threaded sleeve; 12, guide frame; 13, connecting door; 14, limit through groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-12 In an embodiment of the present invention, a cage hoisting anti-falling protection device for a coal mine comprises a shaft body 1, a shaft door 2 is rotatably connected to the outside of the shaft body 1 through a rotating shaft, a connecting handle 3 is fixed to the outside of the shaft door 2, a supporting mounting pad 4 is fixed to the top of the shaft body 1, a mounting motor 5 is arranged on the top of the supporting mounting pad 4, a supporting metal frame 6 is fixed to the top of the shaft body 1, a winding roller is fixedly installed on the outside of the output shaft of the mounting motor 5, and a lifting rope body 7 is arranged on the outside of the winding roller, one end of the lifting rope body 7 is connected to an anti-falling protection mechanism 9, a cage body 10 is connected to the bottom of the anti-falling protection mechanism 9, a reinforcement protection mechanism 11 is arranged on the top of the cage body 10, guide frames 12 are fixed to both sides of the cage body 10, a connecting door 13 is hinged to the outside of the cage body 10 through a hinge, limited position through grooves 14 are arranged on both sides of the anti-falling protection mechanism 9, and a plurality of anti-falling connecting grooves 8 are arranged inside the shaft body 1; The anti-fall protection mechanism 9 includes a support connecting frame 91, the outer side of the support connecting frame 91 is movably sleeved with a support limiting frame 92, the bottom of the support connecting frame 91 is fixed with a fixed support frame 93, the outer side of the fixed support frame 93 is rotatably connected with a rotating assembly frame 94 through a rotating shaft, and the end of the rotating assembly frame 94 away from the fixed support frame 93 is rotatably connected with a protective connecting shell 95 through a rotating shaft, and the inner walls of both sides of the support limiting frame 92 are fixed with limited mounting sleeves 915, one end of the rotating assembly frame 94 is connected to a metal limiting frame 96 through a rotating shaft, and the other end of the metal limiting frame 96 is fixedly installed with a bracket connecting head 97, the outer side of the bracket connecting head 97 is rotatably connected with a pulling connecting block 98 through a rotating shaft, and the outer side of the pulling connecting block 98 is fixed with a rotating connecting frame 99, and the rotating connecting An anti-fall support frame 910 is fixed to the outside of the connecting frame 99, and the size of the limiting through groove 14 is adapted to the size of the anti-fall support frame 910. A through groove is opened inside the protective shell 916, and the size of the through groove is adapted to the size of the anti-fall support frame 910. A fixed connecting plate 911 is fixed to the outside of the protective connecting shell 95, and a metal threaded sleeve 912 is fixed to the outside of the fixed connecting plate 911. The outer side of the metal threaded sleeve 912 is threadedly connected with an installation connecting bolt 914, and the outer side of the installation connecting bolt 914 is matched with a torsion spring 913. A limiting installation sleeve 915 is arranged on the outer side of the installation connecting bolt 914. A mounting hole adapted to the size of the support connecting frame 91 is opened inside the support limiting frame 92, and a limiting pad is fixed to the outer side of the support connecting frame 91 The support connecting frame 91 and the lifting rope main body 7 are fixedly connected, one end of the torsion spring 913 is connected to the installation connecting bolt 914, and the other end of the torsion spring 913 is connected to the rotating connecting frame 99. A threaded hole is provided inside the metal threaded sleeve 912, and a threaded matching component is formed between the threaded hole and the installation connecting bolt 914. A groove for accommodating the activities of the metal limit frame 96 and the bracket connecting head 97 is provided inside the protective connecting shell 95. The rotating connecting frame 99 and the anti-falling support frame 910 are welded and fixed. When the device is in use, a winding roller is fixedly connected to the outer side of the output shaft of the installation motor 5, and the lifting rope main body 7 is arranged on the outer side of the winding roller. By driving the winding roller to rotate through the output shaft of the installation motor 5, the lifting rope main body 7 can be wound and the support connecting frame 9 can be controlled. 1 and the lifting and lowering of the support and limiting frame 92, at this time, a tank cage body 10 is fixed at the bottom of the support and limiting frame 92, so that the tank cage body 10 can move in the vertical direction. Guide frames 12 are arranged on both sides of the tank cage body 10. The interior of the well body 1 is provided with an anti-falling connection groove 8 and a guide groove adapted to the size of the guide frame 12, which plays a guiding role when the tank cage body 10 moves in the vertical direction. If the lifting rope body 7 breaks, the guide frame 12 is limited in the well body 1 to avoid the imbalance of the tank cage body 10. At the same time, after the lifting rope body 7 breaks, the tank cage body 10 loses traction, causing the tank cage body 10 to drop rapidly, and the support connecting frame 91 will also lose traction. The support connecting frame 91 will move downward relative to the support limiting frame 92.The support connecting frame 91 drives the fixed support frame 93 to move downward slightly, and the connection part between the fixed support frame 93 and the rotating assembly frame 94 will break quickly. After one end of the rotating assembly frame 94 is released, the other end of the rotating assembly frame 94 cannot fix one end of the metal limit frame 96, and the metal limit frame 96 cannot fix the outside of the bracket connecting head 97, so that the rotating connecting frame 99 is pushed by the torsion spring 913 on the outside of the installation connecting bolt 914, so that the rotating connecting frame 99 is rotated, and the anti-falling support frame 910 on the outside of the rotating connecting frame 99 is moved at the same time, and the anti-falling support frame 910 can extend from the limiting through groove 14 to the outside of the support limiting frame 92, and the anti-falling support frame 910 can be stuck in the corresponding anti-falling connection groove 8 to complete the support and locking, so that the tank cage body 10 is limited in the current position, achieving the effect of anti-falling protection, and can be protected in time, without skewing or affecting the protection effect, with good anti-falling protection effect, and improving the installation performance of the tank cage when in use.

[0020] As an embodiment of the present invention, the reinforcement protection mechanism 11 includes a reinforcement cast iron plate 111, a fixed semi-threaded rod 112 is fixed on the top of the reinforcement cast iron plate 111, a guide connection groove 113 is provided on the top of the cage body 10, and the cage body 10 is slidably connected with a guide slider 114 through the guide connection groove 113, a reinforcement cast iron sleeve 115 is fixed on one side of the guide slider 114, a movable semi-threaded rod 116 is fixed on the top of the reinforcement cast iron sleeve 115, and a groove is provided inside the reinforcement cast iron sleeve 115, and the size of the groove is the same as that of the reinforcement cast iron plate 111. The size of 11 is adapted, the outer side of the fixed semi-threaded rod 112 and the movable semi-threaded rod 116 is movably sleeved with a positioning connection sleeve 117, the outer side of the fixed semi-threaded rod 112 and the movable semi-threaded rod 116 is threadedly connected with a positioning thread sleeve 118, the reinforced cast iron plate 111 and the support limit frame 92 are fixedly connected, the lower bottom surface of the reinforced cast iron plate 111 is fitted with the upper top surface of the cage body 10, the radius size of the fixed semi-threaded rod 112 is equal to the radius size of the movable semi-threaded rod 116, the outer side of the positioning thread sleeve 118 is provided with anti-slip grooves, and the movable semi-threaded rod 116 is fixedly connected with the support limit frame 92. The corresponding surface of the rod 116 is fitted with the corresponding surface of the fixed semi-threaded rod 112, and the positioning threaded sleeve 118 and the movable semi-threaded rod 116 and the fixed semi-threaded rod 112 are threaded matching components. When the support limit frame 92 and the tank cage body 10 are fixedly connected, the outer side of the support limit frame 92 is fixed with a reinforced cast iron plate 111, and the guide slider 114 can be moved to slide in the guide connection groove 113. At this time, the guide connection groove 113 drives the reinforced cast iron sleeve 115 to move in the horizontal direction, and the reinforced cast iron sleeve 115 can be movably sleeved on the outer side of the reinforced cast iron plate 111 The corresponding surface of the movable semi-threaded rod 116 at the top of the reinforced cast iron sleeve 115 is fitted with the corresponding surface of the fixed semi-threaded rod 112 at the top of the reinforced cast iron plate 111, and the outer sides of the movable semi-threaded rod 116 and the fixed semi-threaded rod 112 are movably sleeved with a positioning connecting sleeve 117, and the positioning threaded sleeve 118 can be used to thread the fixed semi-threaded rod 112 and the movable semi-threaded rod 116, thereby conveniently completing the reinforcement of the connection part between the support and limit frame 92 and the tank cage body 10, and the connection strength of the connection part can be improved after the support and limit frame 92 is fixed to the tank cage body 10.

[0021] The working principle of the present invention is as follows: the device is provided with an anti-fall protection mechanism 9. When the device is in use, a winding roller is fixedly connected to the outer side of the output shaft of the motor 5. At the same time, a lifting rope body 7 is arranged on the outer side of the winding roller. By installing the output shaft of the motor 5 to drive the winding roller to rotate, the lifting rope body 7 can be wound and the lifting and lowering of the supporting connecting frame 91 and the supporting limiting frame 92 can be controlled. At this time, a tank cage body 10 is fixed to the bottom of the supporting limiting frame 92, so that the tank cage body 10 can move in the vertical direction. Guide frames 12 are arranged on both sides of the tank cage body 10. An anti-fall connecting groove 8 and a guide groove matched with the size of the guide frame 12 are opened inside the hoistway main body 1, which play a guiding role when the tank cage body 10 moves in the vertical direction. If the lifting rope body 7 breaks, the guide frame 12 is limited in the hoistway main body 1 to avoid the imbalance of the tank cage body 10. At the same time, after the lifting rope body 7 breaks, the tank cage body 10 loses traction, resulting in a rapid decline of the tank cage body 10, and the supporting connecting frame 91 will also lose traction. The supporting connecting frame 91 is relative to The support limit frame 92 will move downward, allowing the support connecting frame 91 to drive the fixed support frame 93 to move downward in a small range, and the connection part between the fixed support frame 93 and the rotating assembly frame 94 will break quickly. After one end of the rotating assembly frame 94 is released, the other end of the rotating assembly frame 94 cannot fix one end of the metal limit frame 96, and the metal limit frame 96 cannot fix the outside of the bracket connecting head 97, so that the rotating connection frame 99 is pushed by the torsion spring 913 on the outside of the installation connecting bolt 914, so that the rotating connection frame 99 is rotated, and the anti-fall support frame 910 on the outside of the rotating connection frame 99 is simultaneously movable, and the anti-fall support frame 910 can extend from the limiting through groove 14 to the outside of the support limit frame 92, and the anti-fall support frame 910 can be stuck in the corresponding anti-fall connection groove 8 to complete support and locking, so that the tank cage body 10 is limited in the current position, achieving the effect of anti-fall protection, and can be protected in time, without skewing or affecting the protection effect, with good anti-fall protection effect, and improving the installation performance of the tank cage when in use;The device is provided with a reinforcement protection mechanism 11. When the support limit frame 92 and the cage body 10 are fixedly connected, a reinforcement cast iron plate 111 is fixed on the outer side of the support limit frame 92. The guide slider 114 can be moved to slide in the guide connection groove 113. At this time, the guide connection groove 113 drives the reinforcement cast iron sleeve 115 to move in the horizontal direction, and the reinforcement cast iron sleeve 115 can be movably sleeved on the outer side of the reinforcement cast iron plate 111. The corresponding surface of the movable semi-threaded rod 116 on the top of the reinforcement cast iron sleeve 115 and the reinforcement cast iron plate 111 are connected. The corresponding surface of the fixed semi-threaded rod 112 at the top is fitted, and the movable semi-threaded rod 116 and the outer side of the fixed semi-threaded rod 112 are movably sleeved with a positioning connection sleeve 117, and the positioning threaded sleeve 118 can be used to thread the fixed semi-threaded rod 112 and the movable semi-threaded rod 116, so as to conveniently complete the reinforcement of the connection part between the support and limit frame 92 and the tank cage body 10, and the connection strength of the connection part can be improved after the support and limit frame 92 and the tank cage body 10 are fixed, and the safety performance of the tank cage body 10 is further improved. ;

[0022] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cage hoisting anti-fall protection device for coal mines, comprising a hoistway body (1), characterized in that: The outer side of the shaft body (1) is rotatably connected to a shaft door (2) via a rotating shaft, a connecting handle (3) is fixed to the outer side of the shaft door (2), a supporting mounting pad (4) is fixed to the top of the shaft body (1), a mounting motor (5) is arranged on the top of the supporting mounting pad (4), a supporting metal frame (6) is fixed to the top of the shaft body (1), a winding roller is fixedly mounted on the outer side of the output shaft of the mounting motor (5), and a lifting rope body (7) is arranged on the outer side of the winding roller, and the lifting rope body (7) is arranged on the outer side of the lifting rope body (7). ) is connected to an anti-fall protection mechanism (9) at one end, the bottom of the anti-fall protection mechanism (9) is connected to a cage body (10), a reinforcement protection mechanism (11) is arranged on the top of the cage body (10), guide frames (12) are fixed on both sides of the cage body (10), a connecting door (13) is hingedly connected to the outer side of the cage body (10) through a hinge, limited position through grooves (14) are arranged on both sides of the anti-fall protection mechanism (9), and a plurality of anti-fall connection grooves (8) are arranged inside the shaft body (1); The anti-fall protection mechanism (9) comprises a support connection frame (91), the outer side of the support connection frame (91) is movably sleeved with a support limit frame (92), the bottom of the support connection frame (91) is fixed with a fixed support frame (93), the outer side of the fixed support frame (93) is rotatably connected to a rotating assembly frame (94) via a rotating shaft, one end of the rotating assembly frame (94) away from the fixed support frame (93) is rotatably connected to a protective connection shell (95) via a rotating shaft, both sides of the inner wall of the support limit frame (92) are fixed with limit mounting sleeves (915), one end of the rotating assembly frame (94) is connected to a metal limit frame (96) via a rotating shaft, and the other end of the metal limit frame (96) is fixedly mounted with a bracket connection. The support connecting head (97) is rotatably connected to a pulling connecting block (98) on the outer side of the support connecting head (97) via a rotating shaft, a rotating connecting frame (99) is fixed to the outer side of the pulling connecting block (98), an anti-falling support frame (910) is fixed to the outer side of the rotating connecting frame (99), a fixed connecting plate (911) is fixed to the outer side of the protective connecting shell (95), a metal threaded sleeve (912) is fixed to the outer side of the fixed connecting plate (911), an installation connecting bolt (914) is threadedly connected to the outer side of the metal threaded sleeve (912), a torsion spring (913) is cooperatively connected to the outer side of the installation connecting bolt (914), and a limited position installation sleeve (915) is provided on the outer side of the installation connecting bolt (914).

2. The cage hoisting anti-falling protection device for coal mines according to claim 1 is characterized in that: The support limit frame (92) is provided with a mounting hole whose size matches that of the support connecting frame (91), a limit pad is fixed to the outside of the support connecting frame (91), the support connecting frame (91) and the lifting rope body (7) are fixedly connected, one end of the torsion spring (913) is connected to the mounting connecting bolt (914), and the other end of the torsion spring (913) is connected to the rotating connecting frame (99).

3. The cage hoisting anti-falling protection device for coal mines according to claim 2 is characterized in that: The size of the position-limiting through slot (14) matches the size of the anti-falling support frame (910), and a through slot is provided inside the protective shell (916), and the size of the through slot matches the size of the anti-falling support frame (910).

4. The cage hoisting anti-falling protection device for coal mines according to claim 2 is characterized in that: A threaded hole is provided inside the metal threaded sleeve (912), and a threaded matching component is formed between the threaded hole and the mounting connection bolt (914).

5. The cage hoisting anti-falling protection device for coal mines according to claim 1 is characterized in that: A groove for accommodating the movement of the metal limit frame (96) and the bracket connector (97) is provided inside the protection connection housing (95), and the rotating connection frame (99) and the anti-fall support frame (910) are fixed by welding.

6. The cage hoisting anti-falling protection device for coal mines according to claim 1, characterized in that: The reinforcement protection mechanism (11) comprises a reinforcement cast iron plate (111), a fixed semi-threaded rod (112) is fixed on the top of the reinforcement cast iron plate (111), a guide connection groove (113) is provided on the top of the cage body (10), a guide slider (114) is slidably connected to the cage body (10) through the guide connection groove (113), a reinforcement cast iron sleeve (115) is fixed on one side of the guide slider (114), a movable semi-threaded rod (116) is fixed on the top of the reinforcement cast iron sleeve (115), a positioning connection sleeve (117) is movably sleeved on the outer sides of the fixed semi-threaded rod (112) and the movable semi-threaded rod (116), and a positioning threaded sleeve (118) is threadedly connected on the outer sides of the fixed semi-threaded rod (112) and the movable semi-threaded rod (116).

7. The cage hoisting anti-falling protection device for coal mines according to claim 6, characterized in that: The reinforcing cast iron plate (111) and the supporting limit frame (92) are fixedly connected, and the lower bottom surface of the reinforcing cast iron plate (111) is in contact with the upper top surface of the cage body (10).

8. The cage hoisting anti-falling protection device for coal mines according to claim 7, characterized in that: The radius size of the fixed semi-threaded rod (112) is equal to the radius size of the movable semi-threaded rod (116), and the outer side of the positioning threaded sleeve (118) is provided with anti-slip grooves.

9. The cage hoisting anti-falling protection device for coal mines according to claim 7, characterized in that: A groove is provided inside the reinforced cast iron sleeve (115), and the size of the groove matches the size of the reinforced cast iron plate (111).

10. The cage hoisting anti-falling protection device for coal mines according to claim 7, characterized in that: The corresponding surface of the movable semi-threaded rod (116) fits with the corresponding surface of the fixed semi-threaded rod (112), and the positioning threaded sleeve (118) and the movable semi-threaded rod (116) and the fixed semi-threaded rod (112) are threaded matching components.

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