Narrow field adaptive transition type scissor fork intelligent step ladder

Abstract

The utility model provides a narrow area self -adaptation transition type scissor fork intelligent step ladder, include: telescopic frame body is equipped with a plurality and respectively active connection pedal, the two telescopic frame bodies of interval arrangement are equipped with handrail structure on active, and the other two telescopic frame bodies are equipped with extension mechanism;Adjusting plate, be equipped with first electric push cylinder on it, first electric push cylinder one end active connection in the telescopic frame body of control pedal unfolding, and first electric push cylinder is used for unfolding pedal and handrail structure;Translation plate, active connection in adjusting plate, extension mechanism and first electric push cylinder are used for telescopic frame body shrink on translation plate, and translation plate active connection in the mobile car of being equipped with moves. This application has the automation telescoping, translation and angle adjusting mechanism, realizes smooth unfolding and accurate positioning, reduces manual high altitude operation and heavy assembly, reduces operation risk coefficient, effectively guarantees the safety of operating personnel;Possess ground self -adaptation adjusting function, can be stable on uneven or inclined ground.

Description

Technical Field

[0001] This utility model relates to the field of intelligent elevators, and in particular to a narrow-domain adaptive transition type scissor-fork intelligent staircase. Background Technology

[0002] Intelligent staircases are lifting or climbing devices with environmental sensing and automatic control capabilities, which can carry people or goods to achieve smooth passage through complex terrains such as stairs.

[0003] In fields such as power plant operation and maintenance, mining, and underground pipeline maintenance, work scenarios are often concentrated in narrow, enclosed spaces such as power plant pits and power wells. These environments are characterized by compact spaces, irregular ground surfaces (prone to slopes or bumps), and dispersed work sites (requiring frequent relocation), placing extremely high demands on the flexibility, adaptability, and safety of temporary access ladders. Traditionally, temporary access relies on folding metal ladders or fixed scaffolding, which presents challenges in handling and storage, poor adaptability to different scenarios, low deployment efficiency, and significant safety hazards. Existing ladder equipment cannot meet the core requirements of "flexible movement, rapid deployment, and safe adaptation" in confined work environments. There is an urgent need for a compact, automatically adjustable, portable ladder adaptable to complex working conditions to improve work efficiency and safety. Utility Model Content

[0004] The main purpose of this invention is to provide a narrow-range adaptive transition type scissor-fork intelligent staircase to solve the problem of staircases that can be moved at will.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a narrow-domain adaptive transition type scissor-lift intelligent staircase, comprising: The telescopic frame is equipped with multiple movably connected pedals. Two of the telescopic frames are equipped with handrails, and the other two telescopic frames are equipped with extension mechanisms. An adjustment plate is provided with a first electric cylinder. One end of the first electric cylinder is movably connected to the telescopic frame that controls the unfolding of the pedal. The first electric cylinder is used to unfold the pedal and handrail structure. A sliding plate, movably connected to an adjusting plate, an extension mechanism, and a first electric push cylinder are used to retract the telescopic frame onto the sliding plate, which is movably connected to a mobile vehicle.

[0006] In the preferred embodiment, the pedal is provided with extension plates at both ends, which are movably mounted on two of the telescopic frames, and the other two ends of the pedal are movably mounted on the other two telescopic frames. Support seats are provided at intervals on the bottom surface of the pedal located at the end of the telescopic frame.

[0007] In the preferred embodiment, the handrail structure includes uprights movably connected to the crossbars, and connecting blocks movably connected to two of the telescopic frames. Two crossbars are movably connected between each pair of uprights, and the crossbars are movably hinged to the connecting blocks.

[0008] In the preferred embodiment, a first connecting frame is provided on both sides of the top of the adjusting plate, a single ear plate is provided at intervals on the bottom of the side of the adjusting plate away from the first connecting frame, and a guide wheel is provided at intervals on the bottom of the other side of the adjusting plate.

[0009] In the preferred embodiment, a second connecting frame is provided on both sides of the top of the translation plate, and a double ear plate is provided between the two second connecting frames. The double ear plate is movably hinged to the single ear plate.

[0010] In the preferred embodiment, the other end of the first electric push cylinder is movably hinged to the first connecting frame.

[0011] In the preferred embodiment, a second electric push cylinder is movably hinged between the first connecting frame and the second connecting frame. The second electric push cylinder is used to adjust the angle between the adjusting plate and the translation plate when it extends or retracts.

[0012] In the preferred embodiment, the mobile vehicle is equipped with a drive mechanism, and the translation mechanism is provided on both sides of the bottom of the translation plate. The drive mechanism is used to drive the translation mechanism to translate on the mobile vehicle.

[0013] In the preferred embodiment, a toolbox and a document box are respectively provided on both sides of the top of the translation plate, and the toolbox and document box are located on one side of the second connecting frame.

[0014] In a preferred embodiment, the extension mechanism includes a first motor extension end fixedly connected to a coupling, and a nut seat threadedly connected to a first lead screw, with the coupling fixedly connected to the first lead screw.

[0015] The beneficial effects of this utility model of a narrow-domain adaptive transition type scissor-fork intelligent staircase are as follows: 1. The automated telescopic, translational, and angle-adjusting mechanism enables smooth deployment and precise positioning, reducing manual high-altitude operations and heavy assembly, lowering the operational risk factor, and effectively ensuring the safety of operators; 2. The second electric push cylinder has an adjustable angle between the telescopic sliding plate and the adjustment plate, and has a ground adaptive adjustment function, which can operate stably on uneven or inclined ground. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a utility model Figure 1 Structural diagram of A in the middle; Figure 3 This is a utility model Figure 1Structural diagram of B in the middle; Figure 4 This is a three-dimensional structural view of the front of this utility model; Figure 5 This is a utility model Figure 4 Structural diagram of C; Figure 6 This is a three-dimensional structural view of the side of this utility model; Figure 7 This is a utility model Figure 6 Structural diagram of D in the middle; Figure 8 This is a utility model Figure 6 The structural diagram of E in the middle.

[0017] In the diagram: 1. First linkage rod; 2. Second linkage rod; 3. Pedal; 301. Extension plate; 302. Support seat; 4. Handrail structure; 401. Upright pole; 402. Horizontal bar; 403. Connecting block; 5. Adjusting plate; 501. First connecting frame; 502. Single ear plate; 503. Guide wheel; 6. Translation plate; 601. Second connecting frame; 602. Double ear plate; 7. Extension mechanism; 701. First motor; 702. First lead screw; 703. Nut seat; 704. Coupling; 8. Moving carriage; 9. Drive mechanism; 901. Second motor; 902. Second lead screw; 903. Helical gear; 904. Bearing seat; 10. Translation mechanism; 1001. Slider; 1002. Slide rail; 1003. Sliding seat; 11. First electric push cylinder; 12. Second electric push cylinder; 13. Toolbox; 14. Document box. Detailed Implementation

[0018] like Figure 1-8 As shown, a narrow-domain adaptive transition type scissor-lift smart staircase includes: The telescopic frame is equipped with multiple pedals 3 that are movably connected to each other. Two telescopic frames are equipped with handrail structures 4 that are movably connected to each other, and the other two telescopic frames are equipped with extension mechanisms 7. Adjustment plate 5, on which a first electric push cylinder 11 is provided. One end of the first electric push cylinder 11 is movably connected to the telescopic frame that controls the unfolding of the pedal 3. The first electric push cylinder 11 is used to unfold the pedal 3 and the handrail structure 4. The translation plate 6 is movably connected to the adjustment plate 5. The extension mechanism 7 and the first electric push cylinder 11 are used to retract the telescopic frame onto the translation plate 6. The translation plate 6 is movably connected to the provided mobile vehicle 8.

[0019] Furthermore, the telescopic frame includes a first linkage 1 and a second linkage 2 that are cross-connected. Each first linkage 1 is hinged to the second linkage 2 to form a set. The two ends of each set of linkages are hinged to form a telescopic frame. The telescopic frames are arranged in two staggered sets, with each set consisting of two corresponding telescopic frames. Each telescopic frame is composed of a first linkage 1 and a second linkage 2 and is easy to retract and extend. After retracting, the two sets of telescopic frames are placed on the adjusting plate 5. One side of the adjusting plate 6 is movably connected to the translation plate 6. When the telescopic frame is retracted, it moves to the moving vehicle 8 along with the translation plate 6. The moving vehicle 8 can move this structure at will, facilitating its use in power maintenance, mining, and other places. One end of the first electric push cylinder 11 is hinged to the telescopic frame that controls the extension of the control pedal 3. When the extension mechanism 7 is activated to extend another set of telescopic frames, the first electric push cylinder 11 controls the extension angle of the adjustment pedal 3 of one set of telescopic frames. The handrail structure 4 is hinged to a group of closely spaced telescopic frames and unfolds as the first electric push cylinder 11 extends and retracts.

[0020] The pedal 3 has extension plates 301 at both ends, which are movably mounted on two of the telescopic frames. The other two ends of the pedal 3 are movably mounted on the other two telescopic frames. The bottom surface of the pedal 3 at the end of the telescopic frame is provided with support seats 302 at intervals.

[0021] Furthermore, the extension plates 301 at both ends of the pedal 3 can be easily hinged to one set of telescopic frames, and the other two ends of the pedal 3 can be hinged to another set of telescopic frames, making it easier for the pedal 3 to remain stable. The support base 302 makes it easy for the pedal 3 to be placed stably on the ground after it is unfolded.

[0022] The handrail structure 4 includes uprights 401 that are movably connected to crossbars 402, and connecting blocks 403 that are movably connected to two telescopic frames. Two crossbars 402 are movably connected between each pair of uprights 401, and the crossbars 402 are movably hinged to the connecting blocks 403.

[0023] Furthermore, the handrail structure 4 includes vertically arranged uprights 401 and horizontal crossbars 402. The bottom of the uprights 401 is movably connected to a set of telescopic frames via connecting blocks 403, ensuring structural stability and adjustable flexibility. Two crossbars 402 are provided between every two uprights 401, with one end of each pair of crossbars 402 hinged to an upright 401. Simultaneously, the bottom of the uprights 401 is hinged to the connecting blocks 403, forming a multi-point linkage hinged structure. This design ensures the handrail structure remains stable when extended and folds synchronously with the telescopic frame when retracted, exhibiting excellent coordination and structural adaptability. The overall handrail structure combines safety and portability, making it suitable for high-altitude or mobile work platforms and enhancing the safety protection level of operators.

[0024] The top of the adjusting plate 5 is provided with first connecting brackets 501 on both sides, and single ear plates 502 are provided at intervals on the bottom of the side of the adjusting plate 5 away from the first connecting brackets 501, and guide wheels 503 are provided at intervals on the bottom of the other side of the adjusting plate 5.

[0025] Furthermore, symmetrical first connecting frames 501 are provided on both sides of the top of the adjusting plate 5, which are used to hinge the second electric push cylinder 12. On the bottom side of the adjusting plate 5 away from the first connecting frames 501, single ear plates 502 are arranged at intervals and have pin holes. On the bottom side of the adjusting plate 5, guide wheels 503 are installed at equal intervals. When the adjusting plate 5 moves with the translation plate 6 on the moving carriage 8, the guide wheels 503 facilitate the rolling of the adjusting plate 5 on the moving carriage 8, and also facilitate the horizontal movement of the adjusting plate 5 on the ground to avoid wear, effectively reducing the frictional resistance of the adjusting plate 5 during the extension and retraction process and ensuring smooth operation. The first connecting frames 501, single ear plates 502 and guide wheels 503 work together to achieve stable guidance and reliable connection of the adjusting plate 5 during the expansion and contraction process, improving the dynamic response and operating accuracy of the overall mechanism.

[0026] The top two sides of the translation plate 6 are provided with second connecting frames 601, and double ear plates 602 are provided between the two second connecting frames 601. The double ear plates 602 are movably hinged to the single ear plate 502.

[0027] Furthermore, symmetrical second connecting frames 601 are provided on both sides of the top of the translation plate 6 to enhance the structural connection strength and overall rigidity. Double ear plates 602 are spaced apart between the two second connecting frames 601, and are hinged to the single ear plate 502 at the bottom of the adjusting plate 5 via pins, forming a stable linkage hinge structure. This connection method ensures the relative rotational freedom between the adjusting plate 5 and the translation plate 6, and effectively transmits the telescopic thrust, allowing the adjusting plate 5 to smoothly adjust the angle between itself and the translation plate 6 under the drive of the first electric push cylinder 11. The cooperative design of the double ear plates 602 and the single ear plate 502 improves the coordination and reliability of the mechanism's movement.

[0028] The other end of the first electric push cylinder 11 is movably hinged to the first connecting frame 501.

[0029] Furthermore, the other end of the first electric push cylinder 11 is hinged to the first connecting frame 501 on the top of the adjusting plate 5 via a pin, forming a stable power output connection point. This hinge structure allows the electric push cylinder to freely adjust its angle during extension and retraction, adapting to the relative movement trajectory between the adjusting plate 5 and the telescopic frame, so that the first electric push cylinder 11 can smoothly drive the pedal 3 and the handrail structure 4 to unfold or retract, improving the synchronization of the machine's movements and operational reliability.

[0030] A second electric push cylinder 12 is movably hinged between the first connecting frame 501 and the second connecting frame 601. When the second electric push cylinder 12 extends or retracts, it is used to adjust the angle between the adjusting plate 5 and the translation plate 6.

[0031] Furthermore, a second electric push cylinder 12 is movably hinged between the first connecting frame 501 and the second connecting frame 601 via a pin. When the second electric push cylinder 12 extends or retracts, it can push the adjusting plate 5 to adjust the angle relative to the translation plate 6.

[0032] The mobile vehicle 8 is equipped with a drive mechanism 9, and the translation plate 6 has translation mechanisms 10 on both sides of its bottom. The drive mechanism 9 is used to drive the translation mechanisms 10 to translate on the mobile vehicle 8.

[0033] Furthermore, the drive mechanism 9 mainly includes a second motor 901, a second lead screw 902, a helical gear 903, and a bearing seat 904. The second motor 901 is fixed to the moving carriage 8, and its output shaft and the second lead screw 902 are respectively equipped with meshing helical gears 903, achieving power transmission through gear drive, resulting in a compact structure and smooth transmission. The two ends of the second lead screw 902 are rotatably mounted on the moving carriage 8 through two bearing seats 904, ensuring coaxiality and stability when the lead screw rotates. The translation mechanism 10 consists of a slider 1001, a slide rail 1002, and a sliding seat 1003. The slide rail 1002 is symmetrically installed on both sides of the moving carriage 8. The L-shaped slider 1001 is fixed to both sides of the bottom of the translation plate 6, with one end connected to the translation plate and the other end embedded in the slide rail 1002 for sliding guidance. The sliding seat 1003 is fixed to the bottom surface of the translation plate 6 and threadedly engaged with the second lead screw 902. When the second motor 901 starts, it drives the second lead screw 902 to rotate through the helical gear 903, which drives the sliding seat 1003 to move linearly along the second lead screw 902, thereby pushing the translation plate 6 to move laterally along the slide rail 1002, realizing the precise position adjustment and positioning of the device on the mobile vehicle 6, and improving the flexibility and automation of operation.

[0034] Toolbox 13 and data box 14 are respectively provided on the top two sides of the translation plate 6, and toolbox 13 and data box 14 are located on one side of the second connecting frame 601.

[0035] Furthermore, toolboxes 13 and document boxes 14 are symmetrically arranged on both sides of the top of the translation plate 6. The two are located on the same side of the second connecting frame 601, which is reasonable and convenient for operators to access.

[0036] The extension mechanism 7 includes a first motor 701 whose extended end is fixedly connected to a coupling 704, and a nut seat 703 threadedly connected to a first lead screw 702, with the coupling 704 fixedly connected to the first lead screw 702.

[0037] Furthermore, the extension mechanism 7 mainly consists of a first motor 701, a first lead screw 702, a nut seat 703, and a coupling 704. The first motor 701 and the nut seat 703 are fixedly mounted on the telescopic frame at intervals. The output end of the first motor 701 is rigidly connected to the first lead screw 702 via the coupling 704, ensuring efficient power transmission. The first lead screw 703 is threadedly connected to the nut seat 703. When the first motor 701 starts, it drives the first lead screw 703 to rotate, causing the nut seat 703 to move axially along the first lead screw 702, thereby pushing the telescopic frame to unfold or retract. The coupling 704 has a stable connection structure, can compensate for slight installation deviations, and ensures smooth transmission. This mechanism achieves automatic extension and precise positioning of the frame, improving work efficiency and automation levels.

[0038] The implementation principle of this embodiment is as follows: When the device is running, the lateral movement of the platform is completed by the drive mechanism 9 and the translation mechanism 10 in coordination. The second motor 901 drives the second lead screw 902 to rotate through the helical gear 903, causing the sliding seat 1003 to move along the lead screw, thereby pushing the L-shaped slider 1001 at the bottom of the translation plate 6 to slide on the slide rail 1002, realizing the smooth translation of the entire platform on the moving vehicle 8. Then, the first motor 701 in the extension mechanism 7 is started, and its power is transmitted to the first lead screw 702 through the coupling 704, driving the nut seat 703 to move along the lead screw axis, pushing the telescopic frame to unfold. At this time, the first electric push cylinder 11 is started and drives the pedal 3 to unfold, and simultaneously drives the handrail structure 4 to rise. When it is necessary to adjust the platform posture, the second electric push cylinder 12 is activated. Its two ends are respectively hinged to the first connecting frame 501 and the second connecting frame 601. By extending and retracting, the angle between the adjusting plate 5 and the translation plate 6 is changed, realizing the precise adjustment of the platform pitch angle. After the platform is deployed, toolbox 13 and document box 14 are located on one side of the operating area for easy access to tools and documents. The entire system achieves automatic deployment, attitude adjustment, horizontal movement, and storage of the platform through multi-mechanism linkage. It features high automation, flexible operation, and safety and reliability, and is suitable for high-altitude or mobile operations in complex environments.

[0039] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A narrow-domain adaptive transition type scissor-lift smart staircase, characterized in that, include: The telescopic frame is equipped with multiple movably connected pedals (3), and two of the telescopic frames are equipped with handrail structures (4) at intervals, while the other two telescopic frames are equipped with extension mechanisms (7). Adjustment plate (5), on which a first electric push cylinder (11) is provided. One end of the first electric push cylinder (11) is movably connected to the telescopic frame that controls the unfolding of the pedal (3). The first electric push cylinder (11) is used to unfold the pedal (3) and the handrail structure (4). The translation plate (6) is movably connected to the adjustment plate (5), the extension mechanism (7) and the first electric push cylinder (11) are used to retract the telescopic frame onto the translation plate (6), and the translation plate (6) is movably connected to the provided mobile vehicle (8).

2. The narrow-domain adaptive transition type scissor-fork smart staircase according to claim 1, characterized in that, The pedal (3) has extension plates (301) at both ends. The extension plates (301) are movably mounted on two of the telescopic frames. The other two ends of the pedal (3) are movably mounted on the other two telescopic frames. The bottom surface of the pedal (3) at the end of the telescopic frame is provided with support seats (302) at intervals.

3. The narrow-domain adaptive transition type scissor-fork smart staircase according to claim 1, characterized in that, The handrail structure (4) includes a vertical pole (401) movably connected to a horizontal bar (402), and a connecting block (403) movably connected to two telescopic frames. Two horizontal bars (402) are movably connected between each pair of vertical poles (401), and the horizontal bars (402) are movably hinged to the connecting block (403).

4. The narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 1, characterized in that, The top of the adjustment plate (5) is provided with a first connecting frame (501) on both sides. The bottom of the adjustment plate (5) away from the first connecting frame (501) is provided with a single ear plate (502) at intervals. The bottom of the other side of the adjustment plate (5) is provided with a guide wheel (503) at intervals.

5. A narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 1, characterized in that, The top two sides of the translation plate (6) are provided with second connecting frames (601), and double ear plates (602) are provided between the two second connecting frames (601). The double ear plates (602) are movably hinged to the single ear plate (502).

6. A narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 1 or 4, characterized in that, The other end of the first electric push cylinder (11) is movably hinged to the first connecting frame (501).

7. A narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 4 or 5, characterized in that, A second electric push cylinder (12) is movably hinged between the first connecting frame (501) and the second connecting frame (601). When the second electric push cylinder (12) extends or retracts, it is used to adjust the angle between the adjusting plate (5) and the translation plate (6).

8. A narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 1, characterized in that, The mobile vehicle (8) is equipped with a drive mechanism (9), and the translation plate (6) is equipped with translation mechanisms (10) on both sides of the bottom. The drive mechanism (9) is used to drive the translation mechanism (10) to translate on the mobile vehicle (8).

9. A narrow-domain adaptive transition type scissor-fork intelligent staircase according to claim 5, characterized in that, Toolbox (13) and data box (14) are respectively provided on the top two sides of the translation plate (6), and the toolbox (13) and data box (14) are located on one side of the second connecting frame (601).

10. A narrow-domain adaptive transition type scissor-fork smart staircase according to claim 1, characterized in that, The extension mechanism (7) includes a first motor (701) whose extended end is fixedly connected to a coupling (704), and a nut seat (703) threadedly connected to a first lead screw (702), with the coupling (704) fixedly connected to the first lead screw (702).

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