Safety device for vertical shaft cage door

Abstract

The utility model discloses a vertical shaft cage door's safety device, including vertical shaft cage, the inner wall of vertical shaft cage is installed with fixed guide rod, and fixed guide rod is connected with the fender structure, and the fender structure is connected with the second rotating shaft, and the second rotating shaft is fixed with the winding roller, and the winding roller is connected with the protection structure, and the fender structure includes the fender bar no.

Description

Technical Field

[0001] This utility model relates to the field of cage technology, specifically a safety device for a vertical shaft cage door. Background Technology

[0002] Vertical shaft cages are key containers used in mine vertical shaft hoisting systems for transporting personnel, ore, materials, and equipment. They are typically rectangular frame structures, with the main body constructed from welded or riveted steel sections. They have openable cage doors on both sides, and the bottom is lined with anti-slip steel plates or wooden flooring to enhance load-bearing stability. Their working principle involves a hoist drum at the top of the shaft winding a steel wire rope, which pulls the cage in a vertical reciprocating motion within the shaft.

[0003] Chinese Patent Publication No. CN219279210U discloses a coal mine vertical shaft cage door, a cage, and a crossbar. An iron chain is fixedly installed on the upper surface of the cage's inner cavity. The crossbar is suspended from the front of the cage by the iron chain. Locking components for fixing the crossbar are provided at both ends of the lowest crossbar. Installation grooves are provided on the left and right sides of the front surface of the cage. A slider is rotatably installed at both the left and right ends of the crossbar, sliding vertically within the installation groove. The locking components include a threaded block, which is threadedly engaged with the side of the lowest slider's inner cavity away from the crossbar. A connecting groove is provided on the side of the threaded block facing the crossbar. Connecting rods that slide in the connecting groove are fixedly installed at both ends of the lowest crossbar. This device allows control of the height of the lowest crossbar according to actual conditions, making it more convenient for workers to enter and exit the cage. Furthermore, fixing the crossbar only requires rotating it, making the process more convenient.

[0004] In the aforementioned prior art, multiple sets of crossbars are installed at the entrance and exit of the cage to provide protection at the entrance and exit of the cage. However, when entering or exiting the cage, workers need to manually flip the crossbars, which is inconvenient. Moreover, the gaps between the upper and lower crossbars are large, making it easy for tools and materials to fall through the gaps.

[0005] Therefore, it is necessary to propose a safety device for the vertical shaft cage door to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a safety device for a vertical shaft cage door to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a safety device for a vertical shaft cage door, comprising a vertical shaft cage; a fixed guide rod is installed on the inner wall of the vertical shaft cage, a protective structure is connected to the fixed guide rod, a rotating shaft is connected to the protective structure, a winding roller is fixedly sleeved on the rotating shaft, and a protective structure is connected to the winding roller.

[0008] Preferably, the guard structure includes a first guard rod and several second guard rods. Both the first and second guard rods are slidably sleeved on a fixed guide rod. An installation shell is installed above the vertical shaft cage. A rotating shaft is rotatably installed inside the installation shell. A take-up roller is fixedly sleeved on the rotating shaft. One end of a connecting rope is installed on the take-up roller. The other end of the connecting rope passes through the second guard rod and is installed above the first guard rod. A support frame is installed on one side of the installation shell. A reduction motor is installed on one side of the support frame. The output end of the reduction motor is installed on the rotating shaft.

[0009] Preferably, a limiting link is rotatably installed on one side of the second stop rod, and a linkage shaft is installed at one end of the limiting link rod. Both the second stop rod and the first stop rod have slotted holes inside, and the linkage shaft is movably installed in the corresponding slotted holes.

[0010] Preferably, the inner walls on both sides of the vertical shaft cage are provided with vertical grooves, and sliders are slidably installed in both vertical grooves. The two sliders are respectively installed at both ends of the corresponding stop rods.

[0011] Preferably, the second stop bar has a sliding hole inside, and the connecting rope is movably installed in the sliding hole.

[0012] Preferably, the protective structure includes a protective shield, one end of which is mounted on the take-up roller, the other end of which is mounted on one side of the first baffle, and the second rotating shaft is rotatably mounted inside the mounting housing.

[0013] Preferably, one end of the rotating shaft is equipped with a bevel gear, and a connecting shaft is rotatably installed inside the support frame. Two bevel gears are fixedly sleeved on the connecting shaft, and a bevel gear is fixedly sleeved on the rotating shaft. The two bevel gears mesh with the bevel gear and the bevel gear respectively.

[0014] Preferably, a U-shaped frame is installed on one side of the second stop bar, and the U-shaped frame is movably fitted onto the protective cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) In this utility model, the winding roller can be rotated by turning on the deceleration motor, so that the winding roller can wind or release the connecting rope. When winding the connecting rope, it can drive the bottom stop bar one and stop bar two to rise, so that they are closed and stored on the top, free from the obstruction at the entrance of the vertical well cage, making it convenient for workers to pass. Conversely, by releasing the wound connecting rope, the closed stop bar one and stop bar two can be released and blocked at the entrance, restricting passage. In the process, there is no need to manually flip stop bar one and stop bar two frequently.

[0017] (2) When the geared motor is turned on, the winding roller can be driven to rotate synchronously by the linkage of bevel gear one, bevel gear two and bevel gear three. The winding roller can be wound up and unwound as the stop bar one and stop bar two rise and fall. When the stop bar one and stop bar two descend and unfold, the protective cloth can be driven to cover the gap, preventing tools or materials from falling through the gap between the stop bar one and stop bar two, thus improving the protective effect and safety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the connecting rope structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the stop bar structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the strip hole structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the mounting shell of this utility model;

[0023] Figure 6 This is a schematic diagram of the support frame structure of this utility model;

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 100. Vertical shaft cage; 200. Fixed guide rod; 201. Stop bar one; 202. Stop bar two; 203. Limiting link; 204. Linkage shaft; 205. Strip hole; 206. Mounting shell; 207. Rotating shaft one; 208. Take-up roller; 209. Connecting rope; 210. Support frame; 211. Gear motor; 212. Sliding hole; 213. Vertical slide groove; 214. Sliding block; 300. Rotating shaft two; 301. Take-up roller; 302. Protective cover; 303. Bevel gear one; 304. Connecting shaft; 305. Bevel gear two; 306. Bevel gear three; 307. U-shaped frame. Detailed Implementation

[0027] 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 protection scope of the present utility model.

[0028] Example 1: Please refer to Figure 1-6 This utility model provides a technical solution: a safety device for a vertical shaft cage door, including a vertical shaft cage 100; a fixed guide rod 200 is installed on the inner wall of the vertical shaft cage 100, and a protective structure is connected to the fixed guide rod 200. The protective structure is used to block the entrance of the vertical shaft cage to restrict the passage of personnel. A rotating shaft 300 is connected to the protective structure, and a winding roller 301 is fixedly sleeved on the rotating shaft 300. A protective structure is connected to the winding roller 301. The protective structure is used to increase the protective effect of the protective structure and reduce gaps.

[0029] Furthermore, the guard structure includes a first guard rod 201 and several second guard rods 202. Both the first guard rod 201 and the second guard rods 202 are slidably sleeved on the fixed guide rod 200. An installation shell 206 is installed above the vertical shaft cage 100. A rotating shaft 207 is rotatably installed inside the installation shell 206. A take-up roller 208 is fixedly sleeved on the rotating shaft 207. One end of a connecting rope 209 is installed on the take-up roller 208. The other end of the connecting rope 209 passes through the second guard rod 202 and is installed above the first guard rod 201. A support frame 210 is installed on one side of the installation shell 206. A geared motor 211 is installed on one side of the support frame 210. The output end of the geared motor 211 is installed on the rotating shaft 207. The geared motor 211 can drive the rotating shaft 207 to rotate, so that the rotating shaft 207 can drive the take-up roller 208 to wind up the connecting rope 209. The connecting rope 209 will pull the stop bar 201 to move upward. The stop bar 201 will drive the stop bar 202 to rise, which will drive the stop bar 201 and several stop bars 202 to move closer and gather together. Finally, all of them will be retracted to the top, which will remove the obstruction at the entrance of the vertical shaft cage 100 and facilitate the passage of workers.

[0030] Furthermore, a limiting link 203 is rotatably installed on one side of the second stop 202. A linkage shaft 204 is installed at one end of the limiting link 203. Both the second stop 202 and the first stop 201 have slotted holes 205 inside. The linkage shaft 204 is movably installed in the corresponding slotted hole 205. The first stop 201 moves on the linkage shaft 204 through the slotted hole 205, while driving the limiting link 203 to rotate until the limiting link 203 can no longer rotate. The continuously rising first stop 201 will drive the second stop 202 to rise. When the second stop 202 descends, the limiting link 203 can limit the distance between the first stop 201 and the second stop 202, ensuring that they are evenly distributed.

[0031] Furthermore, vertical grooves 213 are provided on both inner walls of the vertical shaft cage 100. Slider 214 is slidably installed in each of the two vertical grooves 213. The two sliders 214 are respectively installed at both ends of the corresponding stop bar 202. When the upper stop bar 202 moves, it can drive the slider 214 to slide in the vertical groove 213. The setting of slider 214 and vertical groove 213 can limit the descent height of the uppermost stop bar 202.

[0032] Furthermore, the second stop bar 202 has a sliding hole 212 inside, and the connecting rope 209 is movably installed in the sliding hole 212. The connecting rope 209 can slide in the sliding hole 212 to avoid interference from the second stop bar 202.

[0033] Example 2: Figure 1-6 To prevent tools or materials from falling through the gap between stop bar 1 201 and stop bar 202, a protective structure is provided. This structure includes a protective cover 302, one end of which is mounted on the take-up roller 301, and the other end on one side of stop bar 1 201. A rotating shaft 2 300 is rotatably mounted inside the mounting housing 206, with a bevel gear 1 303 mounted on one end. A connecting shaft 304 is rotatably mounted inside the support frame 210, with two bevel gears 2 305 fixedly sleeved on the connecting shaft 304. A bevel gear 306 is fixedly sleeved on the rotating shaft 1 207. Gear 2 305 meshes with bevel gear 306 and bevel gear 1 303 respectively. A U-shaped frame 307 is installed on one side of the stop bar 202. The U-shaped frame 307 is movably sleeved on the protective cover 302. When the rotating shaft 1 207 rotates, it can drive the bevel gear 306 to rotate synchronously. The bevel gear 306 drives the rotating shaft 2 300 to rotate through the cooperation of the two bevel gears 2 305, which in turn drives the winding roller 301 to rotate to wind up or unwind the protective cover 302. Thus, while the stop bar 1 201 and the stop bar 2 202 descend and unfold, the protective cover 302 can unfold and unfold, blocking the front. The other features are the same as in embodiment 1.

[0034] The working principle is as follows: Turning on the reduction motor 211 drives the rotating shaft 207 to rotate, which in turn drives the take-up roller 208 to rotate. The rotating take-up roller 208 can take in and unwind the connecting rope 209. When winding the connecting rope 209, it pulls the stop lever 201 upward. The stop lever 201 moves through the slot 205 on the linkage shaft 204, simultaneously causing the limit link 203 to flip. When the limit link 203 can no longer flip, the continuously rising stop lever 201 will drive the stop lever 202 upward. As the stop levers 201 and 202 move, they slide on the fixed guide rod 200. The fixed guide rod 200 prevents the stop levers 201 and 202 from shifting. The continuously rising stop lever 202... The guide rod 205 will rotate through the slot 205, causing the corresponding limiting link 203 to flip. This repeated rotation will cause the first stop bar 201 and several second stop bars 202 to move closer together and eventually all retract to the top, thus removing the obstruction at the entrance of the vertical shaft cage 100 and facilitating worker passage. When the winding connecting rope 209 is released, the first stop bar 201 and second stop bars 202 will descend under gravity. The uppermost second stop bar 202 will cause the slider 214 to slide within the vertical chute 213 until the slider 214 reaches the bottom of the vertical chute 213. At this point, the uppermost second stop bar 202 will stop falling, while the remaining descending second stop bars 202 and first stop bars 201 will cause the corresponding limiting link 203 to unfold, forming a... Figure 2 Once the condition is met, it can be repositioned to protect the entrance of the vertical shaft cage 100.

[0035] When the rotating shaft 207 rotates, it drives the bevel gear 306 to rotate synchronously. The rotating bevel gear 306, through meshing with the corresponding bevel gear 305, drives the connecting shaft 304 to rotate, which in turn drives another bevel gear 305 to rotate. This bevel gear 305, through meshing with the bevel gear 303, drives the rotating shaft 300 to rotate. The rotating shaft 300 rotates in the same direction as the take-up roller 208. The continuously rotating shaft 300 drives the take-up roller 301 to rotate, thus winding or unwinding the protective tarpaulin 302. Therefore, as the baffles 201 and 202 descend and unfold, the protective tarpaulin 302 unfolds and extends, providing protection in front. Figure 1 In the process of raising, lowering, and retracting the bevel gear 306, it will move within the U-shaped frame 307. The U-shaped frame 307 is designed to prevent the bevel gear 306 from disengaging from one side of the stop bar 202.

[0036] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A safety device for a shaft cage door, comprising a shaft cage (100); characterized in that: The inner wall of the vertical shaft cage (100) is equipped with a fixed guide rod (200), a protective structure is connected to the fixed guide rod (200), a rotating shaft two (300) is connected to the protective structure, a winding roller (301) is fixedly sleeved on the rotating shaft two (300), and a protective structure is connected to the winding roller (301).

2. The safety device for a vertical shaft cage door according to claim 1, characterized in that: The protective structure includes a first stop bar (201) and several second stop bars (202). Both the first stop bar (201) and the second stop bar (202) are slidably sleeved on the fixed guide rod (200). An installation shell (206) is installed above the vertical shaft cage (100). A rotating shaft (207) is rotatably installed inside the installation shell (206). A take-up roller (208) is fixedly sleeved on the rotating shaft (207). One end of a connecting rope (209) is installed on the take-up roller (208). The other end of the connecting rope (209) passes through the second stop bar (202) and is installed above the first stop bar (201). A support frame (210) is installed on one side of the installation shell (206). A reduction motor (211) is installed on one side of the support frame (210). The output end of the reduction motor (211) is installed on the rotating shaft (207).

3. The safety device for a vertical shaft cage door according to claim 2, characterized in that: A limiting link (203) is rotatably installed on one side of the second stop (202). A linkage shaft (204) is installed at one end of the limiting link (203). Both the second stop (202) and the first stop (201) have slotted holes (205) inside. The linkage shaft (204) is movably installed in the corresponding slotted holes (205).

4. The safety device for a vertical shaft cage door according to claim 1, characterized in that: The inner walls on both sides of the vertical shaft cage (100) are provided with vertical grooves (213), and sliders (214) are slidably installed in the two vertical grooves (213). The two sliders (214) are respectively installed at both ends of the corresponding stop bar (202).

5. A safety device for a vertical shaft cage door according to claim 2, characterized in that: The second stop bar (202) has a sliding hole (212) inside, and the connecting rope (209) is movably installed in the sliding hole (212).

6. A safety device for a vertical shaft cage door according to claim 1, characterized in that: The protective structure includes a protective shield (302), one end of which is mounted on the take-up roller (301), and the other end of which is mounted on one side of the first baffle (201). The second rotating shaft (300) is rotatably mounted inside the mounting shell (206).

7. A safety device for a vertical shaft cage door according to claim 1, characterized in that: One end of the rotating shaft 2 (300) is equipped with a bevel gear 1 (303), and a connecting shaft (304) is rotatably installed inside the support frame (210). Two bevel gears 2 (305) are fixedly sleeved on the connecting shaft (304), and a bevel gear 3 (306) is fixedly sleeved on the rotating shaft 1 (207). The two bevel gears 2 (305) mesh with bevel gear 3 (306) and bevel gear 1 (303) respectively.

8. A safety device for a vertical shaft cage door according to claim 2, characterized in that: A U-shaped frame (307) is installed on one side of the second stop (202), and the U-shaped frame (307) is movably sleeved on the protective cover (302).

Images