Crawling ladder capable of being used for gallery

Abstract

The utility model discloses a ladder stand capable of being used for a corridor, which comprises a ladder stand device arranged on one framework module in the corridor and a lifeline device arranged on the ladder stand device, and a connecting frame is horizontally arranged on the side surface of the corridor framework; a plurality of connecting frames are arranged up and down at intervals; the ladder stand device comprises a fixed plate, a pedal, a side plate and a connecting plate; the fixed plate is vertically arranged; the pedals are horizontally arranged on the front side of the fixing plate, and the multiple pedals are arranged up and down at intervals; the two side plates are vertically arranged, and the opposite sides of the two side plates are fixedly connected with the left sides and the right sides of the pedals correspondingly. The connecting plates are horizontally arranged, the front side faces of the connecting plates are fixedly connected with the rear side face of the fixing plate, the multiple connecting plates are arranged at intervals up and down corresponding to the connecting frames, and the bottom faces of the connecting plates are connected with the top faces of the connecting frames. And the lifeline device is arranged on the pedal. According to the utility model, the safety of operators in the corridor climbing operation can be ensured, the potential safety hazard is reduced, and the safety is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction safety devices, and in particular relates to a ladder that can be used in corridors. Background Technology

[0002] In modern mining production, belt conveyor systems have become an indispensable and crucial component. With their efficient and continuous transport capabilities, they can transport mined ore from the mining area to the processing zone, significantly improving the overall efficiency of mining production.

[0003] After the corridor is installed at the designated location, it is necessary to regularly inspect and maintain the corridor and the conveying equipment. In some cases, workers need to climb to the top of the corridor or the top surface to carry out the work. Currently, workers mainly climb the corridor by using traditional stairs. However, due to the height of the corridor, the traditional stairs do not have safety protection measures and pose a great safety hazard when climbing. Utility Model Content

[0004] The purpose of this invention is to provide a ladder that can be used in corridors to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ladder for use in corridors includes a ladder device mounted on one of the frame modules of the corridor and a lifeline device mounted on the ladder device. A connecting frame is horizontally mounted on the side of the corridor frame; multiple connecting frames are spaced vertically. The ladder device includes a fixed plate, treads, side plates, and connecting plates. The fixed plate is vertically mounted. Multiple treads are horizontally mounted on the front side of the fixed plate and spaced vertically. Two side plates are vertically mounted, with their opposite sides fixedly connected to the left and right sides of multiple treads respectively. The connecting plates are horizontally mounted, with their front side fixedly connected to the rear side of the fixed plate, and multiple connecting plates are spaced vertically corresponding to the connecting frames. The bottom surface of the connecting plate is connected to the top surface of the connecting frames. The lifeline device is mounted on the treads.

[0007] Furthermore, mounting holes are provided on the top surface of the connecting frame and the top surface of the connecting plate, and the connecting frame and the connecting plate are connected by bolts passing through the mounting holes.

[0008] Furthermore, the lifeline device includes an upper tensioning mechanism, a lower tensioning mechanism, and a steel wire rope. The upper tensioning mechanism is located on the upper pedal, and the lower tensioning mechanism is located on the lower pedal. The steel wire rope is vertically arranged, with its two ends connected to the upper tensioning mechanism and the lower tensioning mechanism, respectively.

[0009] Furthermore, the upper tensioning mechanism includes an upper mounting plate, an upper connecting seat, an upper connecting piece, an upper stud, an upper clamping piece, and an upper locking sleeve; the upper mounting plate is vertically arranged, and its rear side is connected to the upper pedal; the upper connecting seat is vertically arranged on the front side of the upper mounting plate; the upper connecting piece is vertically arranged, and its upper part is rotatably connected to the upper connecting seat; the upper stud is vertically arranged, and its interior is hollow, with its top surface fixedly connected to the bottom surface of the upper connecting piece; the upper clamping piece is vertically arranged, and its interior is hollow, with its inner and outer diameters being the same as those of the upper stud, and the bottom of the upper connecting piece is provided with an upper clamping plate that narrows towards the center; the upper locking sleeve is vertically arranged, and its interior is hollow, narrowing towards the bottom, and the upper locking sleeve is internally connected to the upper stud via threads.

[0010] Furthermore, the tensioning mechanism includes a lower mounting plate, a lower connecting seat, a tensioning assembly, a lower connecting piece, a lower stud, a lower clamping piece, and a lower locking sleeve. The lower mounting plate is vertically arranged, with its rear side connected to the lower pedal. The lower connecting seat is vertically arranged at the lower part of the front side of the lower mounting plate. The bottom of the tensioning assembly is rotatably connected to the lower connecting seat. The lower connecting piece is fixedly connected to the top surface of the tensioning assembly. The lower stud is vertically arranged, hollow inside, and its bottom surface is fixedly connected to the top surface of the lower connecting piece. The lower clamping piece is vertically arranged, hollow inside, and its inner and outer diameters are the same as those of the lower stud. The bottom of the lower connecting piece is provided with a lower clamping plate that narrows towards the center. The lower locking sleeve is vertically arranged, hollow inside, and its top narrows towards the center. The lower locking sleeve is internally connected to the lower stud via threads.

[0011] Furthermore, the tensioning assembly includes a U-shaped component, an adjusting screw, a spring, and an adjusting nut; the U-shaped component is vertically arranged with its opening facing downwards, and its two arms are rotatably connected to the left and right sides of the lower connecting component; the adjusting screw is vertically arranged, with its bottom passing through the top surface of the U-shaped component and entering the U-shaped component, and its top surface being fixedly connected to the lower connecting component; the adjusting nut is horizontally arranged at the lower part of the adjusting screw; the spring is vertically sleeved at the lower part of the adjusting screw and located between the U-shaped component and the adjusting nut.

[0012] The advantages of this utility model compared to the prior art are as follows:

[0013] 1. This utility model utilizes the connecting frame in the prefabricated skeleton module of the corridor as the installation point of the climbing ladder device. By using the existing structure of the prefabricated skeleton module of the corridor, there is no need to develop additional complex installation methods that may damage the overall stability of the corridor. At the same time, it ensures the installation stability of the climbing ladder device and ensures the safety of workers during the climbing process.

[0014] 2. This utility model, by setting up a lifeline device, fixes both ends of the wire rope through an upper tensioning mechanism and a lower tensioning mechanism, and straightens the wire rope through the tensioning component in the lower tensioning mechanism, effectively reducing the swing amplitude of the wire rope under normal conditions, reducing the large swing amplitude of the wire rope caused by external interference, and ensuring the effective use of the fall arrestor, further improving the safety of workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the ladder device and the prefabricated frame of the corridor in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the ladder climbing device and lifeline device of this utility model;

[0018] Figure 4 This is a schematic diagram of the upper tensioning mechanism of this utility model;

[0019] Figure 5 This is an exploded view of the tensioning mechanism of this utility model.

[0020] Figure 6 This is a structural schematic diagram of the tensioning mechanism of this utility model.

[0021] Figure 7 This is an exploded view of the tensioning mechanism of this utility model.

[0022] In the attached diagram, 1-corridor skeleton module; 11-connecting frame;

[0023] 2-Ladder device; 21-Fixing plate; 22-Step; 23-Side plate; 24-Connecting plate;

[0024] 3-Lifeline device;

[0025] 31-Upper tensioning mechanism; 311-Upper mounting plate; 312-Upper connecting seat; 313-Upper connecting piece; 314-Upper stud; 315-Upper clamping piece; 316-Upper clamping plate; 317-Upper locking sleeve;

[0026] 32-Lower tensioning mechanism; 321-Lower mounting plate; 322-Lower connecting seat; 323-Lower connecting piece; 324-Lower stud; 325-Lower clamping piece; 326-Lower clamping plate; 327-Lower locking sleeve;

[0027] 328-Tensioning assembly; 3281-U-shaped part; 3282-Adjusting screw; 3283-Spring; 3284-Adjusting nut;

[0028] 33 - Steel wire rope. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0030] like Figure 1-7 As shown, a ladder for use in a corridor includes a ladder device 2 installed on one of the corridor frame modules 1 and a lifeline device 3 installed on the ladder device 2. The corridor is composed of multiple prefabricated corridor frame modules 1 assembled together. To assemble the multiple corridor frame modules 1, each of the outer surfaces of the corridor frame module 1 is provided with a connecting frame 11. Multiple connecting frames 11 are spaced vertically apart. The connecting frame 11 is an angle iron structure, with its vertical side fixedly connected to the outer surface of the corridor frame module 1, and its horizontal side located on the top surface of the vertical side and extending forward. Reinforcing plates are provided on the left and right sides of the connecting frame 11. The ladder device 2 is installed on the connecting frame 11 of one of the frame modules. The ladder device 2 includes a fixed... The system includes a fixed plate 21, a footboard 22, a side plate 23, and a connecting plate 24. The fixed plate 21 is vertically arranged. The footboard 22 is horizontally arranged in front of the fixed plate 21, with multiple footboards spaced vertically for workers to climb. There are two vertically arranged side plates 23, with one side of each side plate fixedly connected to the left and right sides of multiple footboards 22 to prevent workers from slipping from the side during climbing and to reinforce the multiple footboards 22. The connecting plate 24 is horizontally arranged, with its front side fixedly connected to the rear side of the fixed plate 21, and multiple connecting plates spaced vertically corresponding to the connecting frame 11. The bottom surface of the connecting plate 24 is connected to the top surface of the connecting frame 11. The lifeline device 3 is installed on the footboard 22.

[0031] The top surface of the connecting frame 11 and the top surface of the connecting plate 24 are respectively provided with mounting holes, and the connecting frame 11 and the connecting plate 24 are connected by bolts passing through the mounting holes.

[0032] The lifeline device 3 includes an upper tensioning mechanism 31, a lower tensioning mechanism 32, and a steel wire rope 33. The upper tensioning mechanism 31 is installed on any of the upper pedals 22 as needed. In this embodiment, the upper tensioning mechanism 31 is installed on the second pedal 22 from the top. The lower tensioning mechanism 32 is installed on the lower pedal 22 as needed. In this embodiment, the lower tensioning mechanism 32 is installed on the second pedal 22 from the bottom. The steel wire rope 33 is vertically installed, with its two ends connected to the upper tensioning mechanism 31 and the lower tensioning mechanism 32, respectively. The upper tensioning mechanism 31 and the lower tensioning mechanism 32 tighten the steel wire rope 33. A fall arrester is connected to the steel wire rope 33. The worker wears a safety belt and connects the safety buckle of the safety belt to the speed-differential fall arrester to form a fall arrest system. The fall arrester can be a commercially available speed-differential fall arrester.

[0033] The upper tensioning mechanism 31 includes an upper mounting plate 311, an upper connecting seat 312, an upper connecting piece 313, an upper stud 314, an upper clamping piece 315, an upper clamping plate 316, and an upper locking sleeve 317. The upper mounting plate 311 is vertically arranged, and its rear side is connected to the upper pedal 22. The upper connecting seat 312 is vertically arranged on the front side of the upper mounting plate 311. The upper connecting piece 313 is vertically arranged and is a cylindrical structure with a slot on its top surface. The upper connecting seat 312 is placed in the slot, and a pin passes through the upper connecting piece 313 and the upper connecting seat 312, so that the upper connecting piece 313 and the upper connecting seat 312 are rotatably connected, facilitating subsequent installation and adjustment of the position and tension of the wire rope 33. The upper stud 314 is vertically arranged, hollow inside, and its top surface is fixedly connected to the bottom surface of the upper connector 313. An observation hole is provided on the upper stud 314 for observing whether the wire rope 33 is in place. The upper clamping member 315 is vertically arranged, hollow inside, and its inner and outer diameters are the same as those of the upper stud 314. The bottom of the upper connector 313 is provided with an upper clamping plate 316 that narrows towards the center. The upper locking sleeve 317 is vertically arranged, hollow inside, and has a thread inside that connects to the upper stud 314. The inner diameter of the upper locking sleeve 317 is larger than the outer diameter of the upper stud 314, so that the inside of the upper locking sleeve 317 is threadedly connected to the outer side of the upper stud 314. The bottom of the upper locking sleeve 317 narrows towards the center. During installation, the bottom of the upper locking sleeve 317 and the upper clamping member 315 are passed downwards through the upper end of the wire rope 33. Then, the upper end of the wire rope 33 is inserted into the upper stud 314. The wire rope 33 is observed to be in place through the upper stud 314. After the wire rope 33 is in place, the upper clamping member 315 is moved upwards on the wire rope 33 until its top contacts the bottom of the stud. Then, the upper locking sleeve 317 is moved upwards and tightened with the stud. During the tightening process, the upper locking sleeve 317 will squeeze the upper clamping plate 316, which will press the wire rope 33 tightly. The upper end of the wire rope 33 is fixed in the upper tensioning mechanism 31 by friction and pressure.

[0034] The tensioning mechanism 32 includes a lower mounting plate 321, a lower connecting seat 322, a lower connecting piece 323, a lower stud 324, a lower clamping piece 325, a lower clamping plate 326, a lower locking sleeve 327, and a tensioning assembly 328. The lower mounting plate 321 is vertically arranged, with its rear side connected to the lower pedal 22. The lower connecting seat 322 is vertically arranged on the lower front side of the lower mounting plate 321. The bottom of the tensioning assembly 328 is rotatably connected to the lower connecting seat 322 for subsequent installation and adjustment of the position and tension of the wire rope 33. The lower connecting piece 323 is fixedly connected to the top surface of the tensioning assembly 328. The lower stud 324 is vertically arranged, and its... The lower connector 324 is hollow inside, with its bottom surface fixedly connected to the top surface of the lower connector 323. An observation hole is provided on the lower stud 324 to observe whether the wire rope 33 is in position. The lower clamping member 325 is vertically arranged, hollow inside, and its inner and outer diameters are the same as those of the lower stud 324. The top of the lower connector 323 has a lower clamping plate 326 that narrows towards the center. The lower locking sleeve 327 is vertically arranged, hollow inside, and has threads inside that connect to the lower stud 324. The inner diameter of the lower locking sleeve 327 is larger than the outer diameter of the lower stud 324, allowing the interior of the lower locking sleeve 327 to be threadedly connected to the outer surface of the lower stud 324. The bottom of the lower locking sleeve 327 narrows towards the center. During installation, the wire rope 33 is manually taut and cut so that its lower end reaches the observation hole position of the lower stud 324. Pass the bottom of the lower locking sleeve 327 and the lower clamping member 325 upwards through the lower end of the wire rope 33, and then insert the lower end of the wire rope 33 into the lower stud 324. Observe whether the wire rope 33 is in place through the lower stud 324. After the wire rope 33 is in place, move the lower clamping member 325 downwards under the wire rope 33 so that its bottom contacts the top of the lower stud 324. Then move the lower locking sleeve 327 downwards and tighten the lower locking sleeve 327 with the stud. During the tightening process, the lower locking sleeve 327 will squeeze the lower clamping plate 326, so that the lower clamping plate 326 presses the wire rope 33, and uses friction and pressure to fix the lower end of the wire rope 33 in the lower tensioning mechanism 32.

[0035] The tensioning assembly 328 includes a U-shaped component 3281, an adjusting screw 3282, a spring 3283, and an adjusting nut 3284. The U-shaped component 3281 is vertically arranged with its opening facing downwards. The left and right sides of the two arms of the U-shaped component 3281 are rotatably connected to the left and right sides of the lower connecting component 323 via pins. The adjusting screw 3282 is vertically arranged, with its bottom passing through the top surface of the U-shaped component 3281 and entering the U-shaped component 3281. Its top surface is fixedly connected to the lower connecting component 323. The adjusting nut 3284 is horizontally arranged at the lower part of the adjusting screw 3282. The spring 3283 is vertically sleeved at the lower part of the adjusting screw 3282 and is located between the U-shaped component, the adjusting nut 3284, and the adjusting screw 3282. After the two ends of the wire rope 33 are fixed, the position of the adjusting nut 3284 on the adjusting screw 3282 is adjusted. Combined with the elasticity of the spring 3283, the wire rope 33 is taut, thus reducing its swing arc. Since the speed-differential fall arrestor relies on speed difference to trigger the braking mechanism, if the swing amplitude of the wire rope 33 is too large or it is slack, the worker may experience a free fall distance before the wire rope 33 is tightened. This would increase the distance and speed of the fall, rendering the fall arrestor ineffective. A taut wire rope 33 allows the fall arrestor to pull the worker in place immediately, reducing the fall distance and thus more reliably ensuring the worker's safety.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A ladder for use in a corridor, comprising a ladder device mounted on one of the frame modules in the corridor and a lifeline device mounted on the ladder device, characterized in that: The corridor frame has horizontally arranged connecting frames on its sides; multiple connecting frames are spaced vertically; the ladder device includes a fixed plate, treads, side plates, and connecting plates; the fixed plate is vertically arranged; the treads are horizontally arranged in front of the fixed plate and are spaced vertically; two side plates are vertically arranged, with one side of each side plate fixedly connected to the left and right sides of multiple treads respectively; the connecting plates are horizontally arranged, with their front side fixedly connected to the rear side of the fixed plate, and multiple connecting plates are spaced vertically corresponding to the connecting frames, with the bottom surface of the connecting plate connected to the top surface of the connecting frames; the lifeline device is arranged on the treads.

2. A ladder for use in corridors according to claim 1, characterized in that: The top surface of the connecting frame and the top surface of the connecting plate are respectively provided with mounting holes, and the connecting frame and the connecting plate are connected by bolts passing through the mounting holes.

3. A ladder for use in corridors according to claim 1, characterized in that: The lifeline device includes an upper tensioning mechanism, a lower tensioning mechanism, and a steel wire rope. The upper tensioning mechanism is located on the upper pedal, and the lower tensioning mechanism is located on the lower pedal. The steel wire rope is vertically arranged, with its two ends connected to the upper tensioning mechanism and the lower tensioning mechanism, respectively.

4. A ladder for use in corridors according to claim 3, characterized in that: The upper tensioning mechanism includes an upper mounting plate, an upper connecting seat, an upper connecting piece, an upper stud, an upper clamping piece, and an upper locking sleeve. The upper mounting plate is vertically arranged, with its rear side connected to the upper pedal. The upper connecting seat is vertically arranged on the front side of the upper mounting plate. The upper connecting piece is vertically arranged, with its upper part rotatably connected to the upper connecting seat. The upper stud is vertically arranged, hollow inside, with its top surface fixedly connected to the bottom surface of the upper connecting piece. The upper clamping piece is vertically arranged, hollow inside, and its inner and outer diameters are the same as those of the upper stud. The bottom of the upper connecting piece is provided with an upper clamping plate that narrows towards the center. The upper locking sleeve is vertically arranged, hollow inside, and narrows towards the bottom. The upper locking sleeve is internally connected to the upper stud via threads.

5. A ladder for use in corridors according to claim 4, characterized in that: The tensioning mechanism includes a lower mounting plate, a lower connecting seat, a tensioning assembly, a lower connecting piece, a lower stud, a lower clamping piece, and a lower locking sleeve. The lower mounting plate is vertically arranged, with its rear side connected to the pedal below. The lower connecting seat is vertically arranged at the lower part of the front side of the lower mounting plate. The bottom of the tensioning assembly is rotatably connected to the lower connecting seat. The lower connecting piece is fixedly connected to the top surface of the tensioning assembly. The lower stud is vertically arranged, hollow inside, and its bottom surface is fixedly connected to the top surface of the lower connecting piece. The lower clamping piece is vertically arranged, hollow inside, and its inner and outer diameters are the same as those of the lower stud. The bottom of the lower connecting piece is provided with a lower clamping plate that narrows towards the center. The lower locking sleeve is vertically arranged, hollow inside, and its top narrows towards the center. The lower locking sleeve is internally connected to the lower stud via threads.

6. A ladder for use in corridors according to claim 5, characterized in that: The tensioning assembly includes a U-shaped component, an adjusting screw, a spring, and an adjusting nut. The U-shaped component is vertically arranged with its opening facing downwards, and its two arms are rotatably connected to the left and right sides of the lower connecting component. The adjusting screw is vertically arranged, with its bottom passing through the top surface of the U-shaped component and entering the U-shaped component, and its top surface being fixedly connected to the lower connecting component. The adjusting nut is horizontally arranged at the lower part of the adjusting screw. The spring is vertically sleeved at the lower part of the adjusting screw and located between the U-shaped component and the adjusting nut.

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