A device to prevent cage from falling during loading of a traction shaft construction hoist

Abstract

This utility model relates to the field of traction shaft construction technology, and more particularly to a device for preventing the cage from falling during loading of a traction shaft construction hoist. It includes an adjusting mechanism, a cage, and a braking mechanism. The adjusting mechanism is used to drive the cage to move up and down. The braking mechanism is used to support the bottom of the cage. The braking mechanism includes an electromagnet extension rod, a limit switch fixed to one end of the bottom of the cage, and a housing fixed inside the floor. The electromagnet extension rod is slidably connected to one end of the housing. This utility model provides a device for preventing the cage from falling during loading of a traction shaft construction hoist. During loading, the electromagnet extension rod extends from the bottom of the cage through the braking mechanism, preventing the cage from sinking due to the elastic properties of the wire rope. After loading is completed, the electromagnetic coil is de-energized, and the rebound of the compressed return spring resets the braking mechanism, allowing the electromagnet extension rod to disengage from the bottom of the cage, enabling the cage to operate normally.

Description

Technical Field

[0001] This utility model relates to the field of traction shaft construction technology, and in particular to a device to prevent the cage from falling during loading of a traction shaft construction hoist. Background Technology

[0002] During loading, the cage of a traction hoist needs to be stopped at a specific position for loading and unloading materials or personnel. Due to the elasticity of the traction wire rope, the cage may sink during loading, causing it to become uneven with the floor, resulting in cargo swaying and potentially leading to safety accidents.

[0003] Patent document CN206985423U discloses a safety limit device for preventing the cage from falling in a hoisting system. The device includes a cage, a standard section, and a rotating section. The upper and lower ends of the rotating section are movably connected to the fixed standard section. The cage is slidably connected to the standard section and the rotating section via guide rails. A set of rotating transition section racks with opposite tooth directions are provided on both sides of the rotating section, and a set of fixed transition section racks with opposite tooth directions are provided on both sides of the standard section. A limit switch is fixedly installed at the bottom of the cage via a mounting plate. The limit switch has a trigger rod connected via a torsion spring and a hinge shaft, which presses against the rotating and fixed transition section racks. This invention has a simple structure, effectively ensuring the safety of the cage during high-altitude rail changes. It can be directly installed on the cage without altering the structure of the cage and standard section, facilitating installation, disassembly, and maintenance.

[0004] To address this issue, a device to prevent the cage from falling during loading of a traction shaft construction hoist is designed, providing an alternative technical solution to the aforementioned technical problem. Utility Model Content

[0005] Therefore, it is necessary to provide a device to prevent the cage from falling during loading of a traction shaft construction hoist, in order to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A device to prevent the cage from falling during loading of a traction shaft construction hoist includes an adjustment mechanism, a cage, and a braking mechanism;

[0008] The adjustment mechanism is installed inside the floor and is used to drive the hoist cage to move up and down;

[0009] The cage is used to load and transport goods.

[0010] The braking mechanism is installed at the bottom inside the floor and is used to support the bottom of the cage.

[0011] The braking mechanism includes a limit switch, an electromagnet extension rod, and a housing. The limit switch is fixed at one end of the bottom of the cage, and the housing is fixed inside the floor. An electromagnet extension rod is slidably connected inside one end of the housing.

[0012] As a preferred embodiment of the anti-cage fall device for loading a traction shaft construction hoist provided by this utility model, the adjustment mechanism includes a drive wheel, a counterweight structure, an auxiliary wheel, and a wire rope. The drive wheel is provided at the top of the floor interior, and a wire rope is wound around the outside of the drive wheel. The bottom of one end of the wire rope is fixed to the cage, and the bottom of the other end of the wire rope is fixed to the counterweight structure. An auxiliary wheel is rotatably connected to the end of the floor interior located at the bottom of the drive wheel.

[0013] In a preferred embodiment of the anti-cage fall device for a traction shaft construction hoist provided by this utility model, an electromagnetic coil is fixed inside the housing at one end near the cage and outside the electromagnet extension rod. A return spring is sleeved on the outside of the electromagnet extension rod and at the end inside the housing away from the cage. One end of the return spring is fixed to the housing, and the other end of the return spring is fixed to the electromagnet extension rod.

[0014] As a preferred embodiment of the anti-cage fall device for a traction shaft construction hoist provided by this utility model, one end of the electromagnet extension rod is fixed with an anti-detachment disc.

[0015] As a preferred embodiment of the anti-cage fall device for a traction shaft construction hoist provided by this utility model, it also includes an electromagnet controller fixed on the outside of the floor, wherein the electromagnet controller is connected to the electromagnetic coil through a wire.

[0016] As a preferred embodiment of the anti-cage fall device for loading a traction shaft construction hoist provided by this utility model, a support mechanism for supporting the cage is installed inside the floor. The support mechanism includes a protective shell, a top plate and an extrusion block. The bottom of the protective shell is fixed to the floor. The top plate is slidably connected inside the top of the protective shell. The extrusion block is slidably connected inside the protective shell. An extrusion slope is formed at the top of one end of the extrusion block.

[0017] As a preferred embodiment of the anti-cage fall device for loading a traction shaft construction hoist provided by this utility model, a cover plate is provided on the top of the top plate, a countersunk hole is provided inside the cover plate, an assembly bolt is provided inside the countersunk hole, and the tail end of the assembly bolt is threaded to the top plate.

[0018] As a preferred embodiment of the anti-cage fall device for a traction shaft construction hoist provided by this utility model, a displacement drive motor is fixed at the bottom inside the protective shell, and a threaded rod is connected to the output end of the displacement drive motor. The outer side of the threaded rod is threadedly connected to the extrusion block.

[0019] As a preferred embodiment of the anti-cage fall device for a traction shaft construction hoist provided by this utility model, support blocks are fixed inside the protective shell and on both sides of the displacement drive motor.

[0020] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0021] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0022] This utility model provides a device to prevent the cage from falling during loading of a traction shaft construction hoist. When loading the cage, the electromagnet extension rod in the braking mechanism extends to the bottom of the cage to prevent the cage from sinking due to the elastic characteristics of the wire rope. After the cage is loaded, the electromagnetic coil is de-energized and the rebound of the compressed return spring drives the braking mechanism to reset, allowing the electromagnet extension rod to disengage from the bottom of the cage and allowing the cage to operate normally.

[0023] Through the cooperation of the protective shell, top plate, compression block and support block, when the cage is loaded, the threaded rod drives the compression block to move inside the protective shell. The movement of the compression block squeezes the bottom of the top plate through the compression slope, thereby restricting the descent of the bottom of the cage by the rising of the top plate inside the protective shell. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the working state of this utility model;

[0026] Figure 2 This is a schematic diagram of the non-working state of this utility model;

[0027] Figure 3 This is a schematic diagram showing the extended state of the electromagnet extension rod of this utility model;

[0028] Figure 4This is a schematic diagram of the retracted state of the electromagnet extension rod of this utility model.

[0029] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0030] Figure 6 This is a schematic diagram of the internal structure of the protective shell of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the support block of this utility model.

[0032] In the diagram: 1. Floor; 2. Drive wheel; 3. Counterweight structure; 4. Auxiliary wheel; 5. Wire rope; 6. Cage; 7. Braking mechanism; 8. Limit switch; 9. Electromagnet extension rod; 10. Electromagnetic coil; 11. Return spring; 12. Electromagnet controller; 13. Wire; 14. Anti-detachment disc; 15. Housing; 16. Protective shell; 17. Top plate; 18. Cover plate; 19. Assembly bolt; 20. Extrusion block; 21. Displacement drive motor; 22. Threaded rod; 23. Support block; 24. Extrusion slope. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] Example 1

[0038] Reference Figures 1-4 A device to prevent the cage from falling during loading of a traction shaft construction hoist includes an adjustment mechanism, a cage 6, and a braking mechanism 7.

[0039] The adjustment mechanism is installed inside floor 1 and is used to drive the hoist cage 6 to move up and down;

[0040] The adjustment mechanism includes a drive wheel 2, a counterweight structure 3, an auxiliary wheel 4, and a steel wire rope 5. The drive wheel 2 is located at the top inside the floor 1, and a steel wire rope 5 is wound around the outside of the drive wheel 2, so that the rotation of the drive wheel 2 can adjust the position of the steel wire rope 5. The bottom of one end of the steel wire rope 5 is fixed to the cage 6, so that the adjustment of the steel wire rope 5 can adjust the height of the cage 6. The bottom of the other end of the steel wire rope 5 is fixed to the counterweight structure 3, which provides counterweight. The auxiliary wheel 4 is rotatably connected to the bottom of the drive wheel 2 inside the floor 1. The auxiliary wheel 4 assists the movement of the steel wire rope 5 outside the drive wheel 2 to drive the counterweight structure 3 to rise and fall.

[0041] The lifting cage 6 is used to load and transport goods;

[0042] The braking mechanism 7 is installed at the bottom inside the floor 1 to support the bottom of the cage 6 and prevent the cage 6 from sinking during loading.

[0043] The braking mechanism 7 includes a limit switch 8, an electromagnet extension rod 9, and a housing 15. The limit switch 8 is fixed at one end of the bottom of the cage 6. When the electromagnet extension rod 9 extends out of the housing 15 and contacts the limit switch 8, the limit switch 8 is pressed to signal the electromagnet extension rod 9 to extend to the required length. The housing 15 is fixed inside the floor 1 so that the end of the housing 15 fits against the inner wall of the floor 1, so that the housing 15 does not affect the lifting and lowering of the cage 6 inside the floor 1. The electromagnet extension rod 9 is slidably connected inside one end of the housing 15 so that the bottom of the cage 6 can be supported by rigid contact when the electromagnet extension rod 9 extends out of the housing 15.

[0044] In this embodiment, a controller, which is a microcontroller, may also be included. The controller receives the signal from the limit switch 8, processes it, and then controls the operation of the electromagnet controller 12.

[0045] An electromagnetic coil 10 is fixed inside the housing 15 near the cage 6 and outside the electromagnet extension rod 9. The operation of the electromagnetic coil 10 can generate a magnetic force on the electromagnet extension rod 9, causing the electromagnet extension rod 9 to extend out of the housing 15. A return spring 11 is sleeved on the outside of the electromagnet extension rod 9 and inside the housing 15 away from the cage 6. One end of the return spring 11 is fixed to the housing 15, and the other end of the return spring 11 is fixed to the electromagnet extension rod 9, so that when the electromagnet extension rod 9 extends out of the housing 15, it causes the return spring 11 to compress.

[0046] In this embodiment, the material of the reset spring 11 can be selected according to the specific situation; it can be a magnetic material or a non-magnetic material.

[0047] Preferably, one end of the electromagnet extension rod 9 is fixed with an anti-detachment disc 14, so that the electromagnet extension rod 9 can be prevented from detaching from the housing 15 through the anti-detachment disc 14, and at the same time, the anti-detachment disc 14 can better drive the return spring 11 to compress.

[0048] Preferably, it also includes an electromagnet controller 12 fixed on the outside of the floor 1. The electromagnet controller 12 is connected to the electromagnetic coil 10 through a wire 13, so that the electromagnetic coil 10 is energized or de-energized by the switch of the electromagnet controller 12.

[0049] In this embodiment, each structure has its own service life. In actual manufacturing and application, the corresponding structure made of different materials can be replaced according to the needs of use.

[0050] The operation of the anti-cage fall device for a traction shaft construction hoist provided by this utility model is as follows: By setting an anti-fall device below the loading layer, when the cage 6 is being loaded, the electromagnet extension rod 9 extends to the bottom of the cage 6 to support it. The extension of the braking mechanism 7 is determined by whether the braking mechanism 7 touches the limit switch 8. At this time, the electromagnet extension rod 9 forms a rigid contact with the bottom of the cage 6. When loading goods, the cage 6 is no longer affected by the elastic characteristics of the wire rope 5 and sinks, ensuring stable loading of goods. When the cage 6 is fully loaded, the hoist sends a signal to the electromagnet controller 12, which controls the electromagnetic coil 10 to de-energize. Under the action of the return spring 11, the electromagnet extension rod 9 returns to its original position, and the limit switch 8 also returns to its original position, allowing the cage 6 to operate normally.

[0051] Example 2

[0052] Reference Figures 5-7 The difference from the first embodiment described above is:

[0053] The floor 1 is equipped with a support mechanism for supporting the cage 6. The support mechanism includes a protective shell 16, a top plate 17 and a pressing block 20. The bottom of the protective shell 16 is fixed to the floor 1. The top plate 17 is slidably connected to the top of the protective shell 16, so that the top plate 17 can extend or retract inside the protective shell 16. The pressing block 20 is slidably connected to the inside of the protective shell 16, so that the pressing block 20 can be adjusted to move horizontally inside the protective shell 16. A pressing slope 24 is provided on the top of one end of the pressing block 20, so that the movement of the pressing block 20 is adjusted by pressing the height of the top plate 17 through the pressing slope 24, so that when the top of the pressing block 20 contacts the bottom of the top plate 17, the top plate 17 can support the bottom contact position of the cage 6.

[0054] A cover plate 18 is provided on the top of the top plate 17, so that the cover plate 18 of appropriate shape can be installed on the top of multiple top plates 17 according to the number of protective shells 16 installed, thereby increasing the contact area. The cover plate 18 has a countersunk hole inside, and an assembly bolt 19 is provided inside the countersunk hole. The tail end of the assembly bolt 19 is threaded to the top plate 17, thereby assembling the cover plate 18 and the top plate 17 into one piece by the assembly bolt 19.

[0055] A displacement drive motor 21 is fixed at the bottom inside the protective shell 16. A threaded rod 22 is connected to the output end of the displacement drive motor 21. The outer side of the threaded rod 22 is threadedly connected to the extrusion block 20, so that the rotation of the threaded rod 22 inside the bottom of the extrusion block 20 can drive the extrusion block 20 to move and adjust inside the protective shell 16. Support blocks 23 are fixed inside the protective shell 16 on both sides of the displacement drive motor 21. The top height of the support blocks 23 is higher than or equal to the top height of the displacement drive motor 21. Thus, the bottom of the top plate 17 will not contact the displacement drive motor 21 by placing the support blocks 23.

[0056] In this embodiment, the motor is a self-locking motor, which can drive the connected structure to rotate normally when it is powered on and working. When the motor stops working, it can prevent the connected structure from rotating through its self-locking function.

[0057] The following is the usage process of the anti-cage fall device for a traction shaft construction hoist provided by this utility model: When in use, when it is necessary to support the bottom of the cage 6 or to prevent the cage 6 from falling due to overloading, the displacement drive motor 21 drives the threaded rod 22 to rotate. The rotation of the threaded rod 22 causes the extrusion block 20 to move inside the protective shell 16. The movement of the protective shell 16 extrudes the top plate 17 through the extrusion inclined surface 24, causing the top plate 17 to rise to the highest point and provide certain support for the bottom of the cage 6.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for preventing a cage from falling during loading of a traction shaft construction elevator, characterized in that Includes an adjustment mechanism, a cage (6), and a braking mechanism (7); The adjustment mechanism is installed inside the floor (1) and is used to drive the cage (6) to move up and down; The cage (6) is used to load and transport goods; The braking mechanism (7) is installed at the bottom inside the floor (1) to support the bottom of the cage (6); The braking mechanism (7) includes a limit switch (8), an electromagnet extension rod (9) and a housing (15). The limit switch (8) is fixed at one end of the bottom of the cage (6), and the housing (15) is fixed inside the floor (1). The electromagnet extension rod (9) is slidably connected inside one end of the housing (15).

2. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 1, characterized in that, The adjustment mechanism includes a drive wheel (2), a counterweight structure (3), an auxiliary wheel (4), and a steel wire rope (5). The drive wheel (2) is located at the top inside the floor (1). A steel wire rope (5) is wound around the outside of the drive wheel (2). The bottom of one end of the steel wire rope (5) is fixed to the cage (6). The bottom of the other end of the steel wire rope (5) is fixed to the counterweight structure (3). The auxiliary wheel (4) is rotatably connected to the bottom of the drive wheel (2) inside the floor (1).

3. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 1, characterized in that, An electromagnetic coil (10) is fixed inside the housing (15) at one end near the cage (6) and outside the electromagnet extension rod (9). A return spring (11) is sleeved on the outside of the electromagnet extension rod (9) and at one end inside the housing (15) away from the cage (6). One end of the return spring (11) is fixed to the housing (15), and the other end of the return spring (11) is fixed to the electromagnet extension rod (9).

4. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 3, characterized in that, An anti-detachment disc (14) is fixed to one end of the electromagnet extension rod (9).

5. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 3, characterized in that, It also includes an electromagnet controller (12) fixed on the outside of the floor (1), the electromagnet controller (12) being connected to the electromagnetic coil (10) via a wire (13).

6. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 1, characterized in that, The floor (1) is equipped with a support mechanism for supporting the cage (6). The support mechanism includes a protective shell (16), a top plate (17) and an extrusion block (20). The bottom of the protective shell (16) is fixed to the floor (1). The top plate (17) is slidably connected to the top of the protective shell (16). The extrusion block (20) is slidably connected to the inside of the protective shell (16). An extrusion slope (24) is provided at the top of one end of the extrusion block (20).

7. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 6, characterized in that, The top plate (17) is provided with a cover plate (18), and the cover plate (18) has a countersunk hole inside. An assembly bolt (19) is provided inside the countersunk hole, and the tail end of the assembly bolt (19) is threadedly connected to the top plate (17).

8. The anti-cage fall device for a traction shaft construction hoist during loading according to claim 6, characterized in that, The bottom of the protective shell (16) is fixed with a displacement drive motor (21), and the output end of the displacement drive motor (21) is connected to a threaded rod (22). The outer side of the threaded rod (22) is threadedly connected to the extrusion block (20).

9. A device for preventing cage fall during loading of a traction shaft construction hoist according to claim 8, characterized in that, Support blocks (23) are fixed inside the protective shell (16) and on both sides of the displacement drive motor (21).

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