Foldable safety door for mining cage

Abstract

The utility model belongs to the field of folding safety doors, and particularly relates to a mining cage foldable safety door which comprises a main body, a safety protection assembly is arranged on one side of the main body, and the safety protection assembly comprises a folding door body and a movable door body. The folding door body comprises two vertical guide shafts, movable rods are hinged to the bottoms of the two vertical guide shafts, folding telescopic pieces are fixedly installed on the outer sides of the two movable rods and are formed by sequentially sleeving a plurality of telescopic sleeves, and limiting grooves are formed in the two sides of each telescopic sleeve. A limiting pin is movably mounted through the limiting groove; through the matching design of the telescopic sleeve and the limiting pin, the foldable function of the door body is achieved, when a well mouth needs to be isolated, the movable rod is vertically unfolded, the telescopic sleeve is locked through the limiting pin, and a stable protection structure is formed; when not in use, the movable rod can be folded and stored through the movable hook, the wellhead space is saved, and the cage loading and unloading efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of folding safety doors, specifically a foldable safety door for mining cages. Background Technology

[0002] In mine production, cages are crucial transportation equipment for personnel and materials going up and down the shaft. Because of the gap between the cage and the shaft opening, there is a risk of personnel, vehicles, or materials falling into the shaft during cage raising and lowering. To prevent such accidents, safety doors need to be installed at the shaft opening to effectively isolate the gap between the opening and the cage. Foldable safety doors for cages have thus been developed.

[0003] Currently, existing technologies still have the following shortcomings: traditional safety doors are mostly fixed or simple swing-out structures, which occupy a large space and are not convenient for the rapid loading and unloading of cages and the efficient use of wellhead space; the folding mechanism of some foldable safety doors is not stable enough, the operation is cumbersome, and problems such as jamming or limit failure are prone to occur, resulting in a decline in safety performance.

[0004] Therefore, a foldable safety door for mining cages is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the inconvenience of rapid loading and unloading of cages and efficient utilization of mine shaft space, this utility model proposes a foldable safety door for mining cages.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A foldable safety door for a mining cage according to this utility model includes a main body, a safety protection component is provided on one side of the main body, the safety protection component includes a folding door body and a movable door body; the folding door body includes two vertical guide shafts, the bottom of each of the two vertical guide shafts is hinged to a movable rod, and a folding telescopic component is fixedly installed on the outer side of each of the two movable rods, the folding telescopic component is formed by several telescopic sleeves sequentially connected, the two sides of each telescopic sleeve have limit grooves, and limit pins are movably installed through the limit grooves, the limit pins pass through and are movably installed at the top of another telescopic sleeve, a door crossbar is fixedly installed on one side of each telescopic sleeve, limit blocks are engaged at the bottom of each of the two movable rods, a protective plate is fixedly installed on one side of each of the two limit blocks, and two connecting blocks are fixedly installed at the bottom of the inner cavity of the protective plate, each connecting block has a movable groove, and a movable hook is movably installed through the movable groove.

[0007] Preferably, the main body includes a support plate, a fixed box is fixedly installed on the top of the support plate, and a transmission component is fixedly installed on one side of the top of the fixed box.

[0008] Preferably, two vertical guide shafts are fixedly installed on the lower top side of the fixed compartment, and a protective plate is fixedly installed in the inner cavity of the fixed compartment.

[0009] Preferably, the movable door includes a mounting plate, a servo motor is fixedly mounted on one side of the mounting plate, a drive shaft is fixedly mounted on the output end of the servo motor, two first drive pulleys are fixedly mounted through the drive shaft, two first drive pulleys are meshed with a first drive belt on one side of each of the two first drive belts, two first support pulleys are meshed with each of the two first drive belts, four first support pulleys are fixedly mounted around the mounting plate, and a first-stage movable door is fixedly mounted on one side of each of the two first drive belts.

[0010] Preferably, the movable door further includes a second transmission pulley, a transmission shaft is fixedly installed through the second transmission pulley, a second transmission belt is meshed with one side of the second transmission pulley, two second support pulleys are meshed with the second transmission belt, two second support pulleys are fixedly installed on both sides of the first-stage movable door, and a second-stage movable door is fixedly installed on one side of the second transmission belt.

[0011] Preferably, the movable door also includes three limiting rollers, all three of which are fixedly installed on one side of the mounting plate. Two of the limiting rollers are respectively engaged with one side of the first transmission belt, and the middle limiting roller is engaged with one side of the second transmission belt.

[0012] Preferably, two first guide rails are fixedly installed on one side of the mounting plate, several first sliders are movably installed on one side of each of the two first guide rails, a first-stage movable door is fixedly installed on the other side of the several first sliders, two second guide rails are fixedly installed on the other side of the first-stage movable door, several second sliders are movably installed on the other side of each of the two second guide rails, and the other side of the several second sliders is fixedly installed with the second-stage movable door.

[0013] The advantages of this utility model are:

[0014] 1. This utility model achieves the foldable function of the door body through the structural design of the folding door body and the cooperation design of the telescopic sleeve and the limiting pin. When it is necessary to isolate the well opening, the movable rod is vertically unfolded and the telescopic sleeve is locked by the limiting pin to form a stable protective structure. When not in use, the movable rod can be folded and stored through the movable hook, saving well opening space and improving the loading and unloading efficiency of the cage.

[0015] 2. This utility model, through the structural design of the movable door body, uses a servo motor to drive the transmission shaft, which drives the first and second transmission pulleys to rotate synchronously. In conjunction with the first guide rail, the second guide rail, and the slider structure, it ensures the smooth lifting and lowering of the first-stage and second-stage movable doors, solving the problem of easy shaking during the lifting and lowering of traditional doors, and improving the reliability and ease of operation of the safety door. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This is an exploded view of the folding door structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is an exploded view of the movable door structure of this utility model.

[0022] In the diagram: 1. Main body; 2. Safety protection components; 3. Folding door body; 4. Movable door body; 11. Bearing plate; 12. Fixed box; 13. Transmission components; 21. Protective plate; 22. Vertical guide shaft; 23. Folding telescopic component; 24. Movable rod; 25. Telescopic sleeve; 26. Limiting groove; 27. Limiting pin; 28. Door crossbar; 29. ​​Limiting block; 31. Connecting block; 32. Movable hook; 33. Mounting plate; 34. Servo motor; 35. Transmission shaft; 36. First transmission pulley; 37. Second transmission pulley; 38. First transmission belt; 39. First support pulley; 41. Second transmission belt; 42. Limiting roller; 43. Second support pulley; 44. First guide rail; 45. First slider; 46. Second guide rail; 47. Second slider; 48. First-stage movable door; 49. Second-stage movable door. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1-5 As shown, a foldable safety door for a mining cage includes a main body. A safety protection component 2 is provided on one side of the main body 1. The safety protection component 2 includes a folding door body 3 and a movable door body 4. The folding door body 3 includes two vertical guide shafts 22. Movable rods 24 are hinged to the bottom of each of the two vertical guide shafts 22. Folding telescopic components 23 are fixedly installed on the outer sides of each of the two movable rods 24. The folding telescopic component 23 is formed by sequentially connecting several telescopic sleeves 25. Limiting devices are provided on both sides of each telescopic sleeve 25. The groove 26 is used to movably install a limiting pin 27. The limiting pin 27 passes through and is movably installed at the top of another telescopic sleeve 25. A door crossbar 28 is fixedly installed on one side of the telescopic sleeve 25. The bottom of the two movable rods 24 are both engaged with limiting blocks 29. A protective plate 21 is fixedly installed on one side of the two limiting blocks 29. Two connecting blocks 31 are fixedly installed at the bottom of the inner cavity of the protective plate 21. Each connecting block 31 has a movable groove, and a movable hook 32 is movably installed through the movable groove.

[0025] In normal operation, the hinge between the vertical guide shaft 22 and the movable rod 24 allows the movable rod 24 to move axially through the hinge point of the vertical guide shaft 22. One end of the movable rod 24 is hooked onto the movable hook 32, which supports and limits the movable rod 24 to prevent interference with personnel movement caused by the unfolding of the folding telescopic component 23. When protective work is required, the movable hook 32 is rotated to move circumferentially in the movable groove of the connecting block 31, thus removing the limit on one end of the movable rod 24 and making the movable rod 24 vertical. In the vertical state, the bottom end of the movable rod 24 is locked in place by the limiting block 29. Personnel can then pass through the movable door crossbar 28 to allow multiple telescopic sleeves 25 to unfold relative to each other. During unfolding, the limiting groove 26 of the telescopic sleeve 25 limits the limiting pin 27 to prevent another telescopic sleeve 25 from derailing during movement. At the same time, the door crossbars 28 become equidistant from each other, providing protective work for personnel.

[0026] Furthermore, the main body 1 includes a support plate 11, a fixed box 12 is fixedly installed on the top of the support plate 11, and a transmission assembly 13 is fixedly installed on one side of the top of the fixed box 12.

[0027] During operation, the fixed box 12 is fixedly supported by the bearing plate 11, and the installation of the fixed box 12 ensures the stability between the structures.

[0028] Furthermore, two vertical guide shafts 22 are fixedly installed on the lower top of the fixed compartment 12, and a protective plate 21 is fixedly installed in the inner cavity of the fixed compartment 12.

[0029] During operation, the fixed compartment 12 is connected to the protective plate 21, which provides appropriate protection for the top and bottom of personnel to prevent safety hazards during operation.

[0030] Furthermore, the movable door 4 includes a mounting plate 33, a servo motor 34 is fixedly mounted on one side of the mounting plate 33, a drive shaft 35 is fixedly mounted on the output end of the servo motor 34, the drive shaft 35 passes through and is fixedly mounted with two first drive pulleys 36, each of the two first drive pulleys 36 is meshed with a first drive belt 38 on one side, each of the two first drive belts 38 is meshed with two first support pulleys 39, the four first support pulleys 39 are fixedly mounted around the mounting plate 33, and a first-stage movable door 48 is fixedly mounted on one side of the two first drive belts 38;

[0031] When the servo motor 34 is in operation, the output shaft 35 drives the two first transmission pulleys 36 to rotate synchronously. One side of the first transmission pulley 36 meshes with the first transmission belt 38. The first transmission belt 38 is limited to the periphery of the mounting plate 33 by the first support pulley 39. At this time, the rotation of the first transmission pulley 36 will drive the first transmission belt 38 to rotate accordingly. One side of the first transmission belt 38 is fixed to the first-stage movable door 48, thereby driving the first-stage movable door 48 to perform corresponding lifting and lowering movements.

[0032] Furthermore, the movable door body 4 also includes a second transmission pulley 37, through which a transmission shaft 35 is fixedly installed. A second transmission belt 41 is meshed with one side of the second transmission pulley 37. The second transmission belt 41 is meshed with two second support pulleys 43. The two second support pulleys 43 are fixedly installed on both sides of the first-stage movable door 48. A second-stage movable door 49 is fixedly installed on one side of the second transmission belt 41.

[0033] During operation, when the servo motor 34 drives the output shaft 35 to drive the two first transmission pulleys 36 to rotate synchronously, it synchronously drives the fixed second transmission pulley 37 to rotate. Under the meshing cooperation between the second transmission pulley 37 and the second transmission belt 41, the second transmission belt 41 rotates on the second support pulley 43, which drives the second-stage movable door 49 fixed on one side of the second transmission belt 41 to move up and down synchronously.

[0034] Furthermore, the movable door body 4 also includes three limiting rollers 42. The three limiting rollers 42 are all fixedly installed on one side of the mounting plate 33. Two limiting rollers 42 are respectively engaged with one side of the first transmission belt 38. The middle limiting roller 42 is engaged with one side of the second transmission belt 41.

[0035] During operation, the installation of the limiting roller 42 limits one side of the first transmission belt 38 and the second transmission belt 41, and limits the first transmission belt 38 and the second transmission belt 41 to a perpendicular state, which is conducive to better meshing with the first transmission pulley 36 and the second transmission pulley 37, and ensures stability during transmission.

[0036] Furthermore, two first guide rails 44 are fixedly installed on one side of the mounting plate 33. Several first sliders 45 are movably installed on one side of the two first guide rails 44 respectively. A first-stage movable door 48 is fixedly installed on the other side of the several first sliders 45. Two second guide rails 46 are fixedly installed on the other side of the first-stage movable door 48. Several second sliders 47 are movably installed on the other side of the two second guide rails 46 respectively. The other side of the several second sliders 47 is fixedly installed with the second-stage movable door 49.

[0037] During operation, when the first-stage movable door 48 and the second-stage movable door 49 are moving up and down, they are supported by the first transmission belt 38 and the second transmission belt 41 respectively. Due to the instability of the support points, the first-stage movable door 48 and the second-stage movable door 49 are easily shaken. With the installation of the first guide rail 44 and the second guide rail 46, the first slider 45 and the second slider 47 respectively support and limit the first-stage movable door 48 and the second-stage movable door 49 to ensure the stability of the first-stage movable door 48 and the second-stage movable door 49 during the movement.

[0038] Working principle: In the first embodiment, under normal conditions, the movable rod 24 is attached to the protective plate 21 via the movable hook 32 and is in a folded storage state. When protection is needed, the movable hook 32 is rotated to release the limit, the movable rod 24 falls vertically, the limit block 29 is locked in place, the door crossbar 28 is pulled to unfold the telescopic sleeve 25, the limit pin 27 is inserted into the limit groove 26 to lock, forming a complete protective barrier;

[0039] In the second embodiment, the servo motor 34 and the transmission shaft 35 drive the first transmission pulley 36 and the second transmission pulley 37 to rotate, and the first transmission belt 38 and the second transmission belt 41 respectively drive the first-stage movable door 48 and the second-stage movable door 49 to rise and fall along the first guide rail 44 and the second guide rail 46.

[0040] 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 claimed utility model.

Claims

1. A mine cage foldable safety gate comprising a main body (1), characterised in that: A safety protection component (2) is provided on one side of the main body (1). The safety protection component (2) includes a folding door body (3) and a movable door body (4). The folding door body (3) includes two vertical guide shafts (22). The bottom of each of the two vertical guide shafts (22) is hinged with a movable rod (24). Folding telescopic components (23) are fixedly installed on the outside of each of the two movable rods (24). The folding telescopic components (23) are formed by sequentially connecting several telescopic sleeves (25). Limiting grooves (26) are opened on both sides of each telescopic sleeve (25). (26) A limiting pin (27) is installed on the movable side. The limiting pin (27) passes through and is movably installed on the top of another telescopic sleeve (25). A door crossbar (28) is fixedly installed on one side of the telescopic sleeve (25). The bottom of the two movable rods (24) is engaged with a limiting block (29). A protective plate (21) is fixedly installed on one side of the two limiting blocks (29). Two connecting blocks (31) are fixedly installed at the bottom of the inner cavity of the protective plate (21). Each connecting block (31) has a movable groove, and a movable hook (32) is movably installed through the movable groove.

2. A mine cage foldable safety gate according to claim 1, characterised in that: The main body (1) includes a support plate (11), a fixed box (12) is fixedly installed on the top of the support plate (11), and a transmission assembly (13) is fixedly installed on one side of the top of the fixed box (12).

3. A mine cage foldable safety gate according to claim 2, characterised in that: Two vertical guide shafts (22) are fixedly installed on the lower top of the fixed compartment (12), and a protective plate (21) is fixedly installed in the inner cavity of the fixed compartment (12).

4. The mine cage foldable safety gate according to claim 1, characterized in that: The movable door (4) includes a mounting plate (33). A servo motor (34) is fixedly mounted on one side of the mounting plate (33). A transmission shaft (35) is fixedly mounted on the output end of the servo motor (34). Two first transmission pulleys (36) are fixedly mounted through the transmission shaft (35). Two first transmission pulleys (36) are meshed with a first transmission belt (38) on one side. Two first transmission belts (38) are meshed with two first support pulleys (39) respectively. Four first support pulleys (39) are fixedly mounted around the mounting plate (33). A first-stage movable door (48) is fixedly mounted on one side of the two first transmission belts (38).

5. A mine cage foldable safety gate according to claim 4, characterised in that: The movable door body (4) also includes a second transmission pulley (37), through which a transmission shaft (35) is fixedly installed. A second transmission belt (41) is meshed with one side of the second transmission pulley (37), and two second support pulleys (43) are meshed with the second transmission belt (41). The two second support pulleys (43) are fixedly installed on both sides of the first-stage movable door (48), and a second-stage movable door (49) is fixedly installed on one side of the second transmission belt (41).

6. A foldable safety door for a mining cage according to claim 5, characterized in that: The movable door (4) also includes three limiting rollers (42). The three limiting rollers (42) are fixedly installed on one side of the mounting plate (33). Two of the limiting rollers (42) are respectively engaged with one side of the first transmission belt (38). The middle limiting roller (42) is engaged with one side of the second transmission belt (41).

7. A foldable safety door for a mining cage according to claim 5, characterized in that: Two first guide rails (44) are fixedly installed on one side of the mounting plate (33). Several first sliders (45) are movably installed on one side of the two first guide rails (44). A first-stage movable door (48) is fixedly installed on the other side of the several first sliders (45). Two second guide rails (46) are fixedly installed on the other side of the first-stage movable door (48). Several second sliders (47) are movably installed on the other side of the two second guide rails (46). The other side of the several second sliders (47) is fixedly installed with the second-stage movable door (49).

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