Sliding type construction ladder stand

Abstract

The invention discloses a sliding type construction crawling ladder, and belongs to the technical field of municipal pipe network construction.According to the sliding type construction crawling ladder, a top sliding rail is arranged on the road surface of the top of a groove, a sliding table is arranged on the top sliding rail in a sliding mode, and a crawling ladder assembly is installed on the sliding table, so that the crawling ladder assembly can slide in the groove to change the position; meanwhile, a supporting pulley is arranged on one side of the crawling ladder assembly and used for supporting the side face of the groove, normal sliding of the crawling ladder assembly is not affected while supporting force is provided for the crawling ladder assembly, and a first supporting leg is further arranged at the bottom of the crawling ladder assembly, can be supported on the bottom face of the groove and can be disengaged from the bottom face of the groove; the ladder stand assembly is arranged in the groove and used for corresponding to the using state and the sliding state of the ladder stand assembly, the whole device can conduct adaptive position adjustment along with the change of the construction position in the using process, hoisting equipment does not need to be used for hoisting the whole ladder stand assembly during adjustment, and adjustment of the position of the ladder stand assembly in the groove is simpler and more convenient.

Description

Technical Field

[0001] This invention relates to the field of municipal pipeline construction technology, specifically a sliding construction ladder. Background Technology

[0002] In trench excavation for municipal pipeline construction, access routes for construction workers are typically required. Currently, commonly used technologies include steel pipe and fastener-type access routes and custom-assembled access routes: the former is constructed by assembling steel pipes and fasteners on-site, while the latter uses prefabricated modules for assembly. Although the two have different structural forms, they both employ an overall rigid structure and a fixed-size design.

[0003] Once erected, these passageways are quite heavy. If they need to be moved during construction, they must be moved with the help of cranes, as they cannot be moved by manpower. This not only increases construction costs and working time, but also makes it difficult to adjust the location of the passageway and reduces its flexibility.

[0004] Based on this, the present invention designs a sliding construction ladder to solve the above problems. Summary of the Invention

[0005] This invention provides a sliding construction ladder to solve the technical problem that the overall rigid structure of construction ladders in the prior art is inconvenient to transport.

[0006] According to one aspect of the present invention, a sliding construction ladder is characterized in that it includes a top slide rail, a sliding platform, and a ladder assembly; the top slide rail is used to be anchored to the road surface at the top of the trench and is arranged parallel to the trench; the sliding platform is installed on the top slide rail and is used to slide along the length direction of the top slide rail; a first end of the ladder assembly is connected to the sliding platform, a second end of the ladder assembly is used to be placed in the trench, a support pulley is provided at the middle section of the ladder assembly, the support pulley is used to support the side of the trench so that the ladder assembly can slide relative to the side wall of the trench, and a first support leg is movably installed at the bottom end of the ladder assembly, the first support leg is used to contact the bottom surface of the trench to support the ladder assembly or to detach from the bottom surface of the trench so that the ladder assembly is suspended on the bottom surface of the trench.

[0007] As a further embodiment of the present invention, the ladder assembly is rotatably mounted on the slide along a horizontal axis, and a support unit is movably mounted on the ladder assembly. The support pulley is mounted on the support unit, and the support unit is used to adjust the distance between the support pulley and the ladder assembly and / or adjust the height of the support pulley on the ladder assembly.

[0008] As a further embodiment of the present invention, the support unit includes a support frame slidably disposed on the ladder assembly along the length direction of the ladder assembly, and a support pulley disposed at the end of the support frame away from the ladder assembly, so as to drive the support pulley to slide along the length direction of the ladder assembly through the support frame, and the support frame is provided with a fixing member for fixing the position of the support frame.

[0009] As a further embodiment of the present invention, the support unit includes a vertical keel and a horizontal keel. The top end of the vertical keel is fixedly connected to the slide table, and the bottom end of the vertical keel is fixedly connected to the horizontal keel. The end of the horizontal keel away from the vertical keel is connected to a ladder assembly. The connection position of the ladder assembly on the horizontal keel is adjustable, or the horizontal keel is telescopic, so as to adjust the tilt angle of the ladder assembly. The support pulley is provided on the vertical keel.

[0010] As a further embodiment of the present invention, the vertical keel includes a telescopic rod, and a second leg is movably installed at the bottom end of the vertical keel. The second leg is used to contact the bottom surface of the trench to support the vertical keel or to detach from the bottom surface of the trench so that the vertical keel is suspended on the bottom surface of the trench.

[0011] As a further embodiment of the present invention, the ladder assembly includes multiple steps and a step keel for mounting the steps. The multiple steps are spaced apart along the length direction of the step keel. The steps are rotatably mounted on the step keel, and one end of each step is provided with a rotation adjustment unit for fixing the step angle. One end of the step keel is rotatably connected to a slide, and the other end is connected to a first support leg.

[0012] As a further embodiment of the present invention, the rotation adjustment unit includes a step connecting plate, a keel connecting plate, and a limiting clip. The step connecting plate is rotatably disposed within the keel connecting plate, the keel connecting plate is fixedly disposed on the step keel, and the step is fixedly disposed on the step connecting plate. Limiting teeth are provided on both the outer circumferential surface of the keel connecting plate and the inner circumferential surface of the step connecting plate. The limiting clip is detachably sleeved on the step connecting plate and the keel connecting plate, and the limiting clip is used to simultaneously engage with the limiting teeth on the step connecting plate and the limiting teeth on the keel connecting plate to limit the relative rotation of the step connecting plate and the keel connecting plate.

[0013] As a further embodiment of the present invention, a handrail is provided on the step keel. The handrail includes a first mounting rod, a second mounting rod, and at least two grips. The first mounting rod is fixed to the slide table, and the second mounting rod is hinged to the end of the step keel away from the slide table. Both the first mounting rod and the second mounting rod are vertically installed. The two ends of the grips are respectively hinged to the first mounting rod and the second mounting rod. A plurality of grips are arranged vertically at intervals, and the plurality of grips are parallel to each other with respect to the step keel.

[0014] As a further embodiment of the present invention, the first leg is hinged to the bottom end of the ladder assembly along a horizontal axis, and the height of the first leg is adjustable.

[0015] As a further embodiment of the present invention, the sliding construction ladder also includes a side rail, which is used to be installed on the side of the trench and to accommodate support pulleys.

[0016] The present invention has the following beneficial effects: This device uses a top slide rail installed on the top of the trench surface, with a sliding platform mounted on the top slide rail. The ladder assembly is then mounted on the sliding platform, allowing it to slide and change position within the trench. A support pulley is located on one side of the ladder assembly, providing support to the side of the trench without hindering its normal sliding. The bottom of the ladder assembly also has a first leg, which can either rest against the bottom of the trench or be detached from it, corresponding to the use and sliding states of the ladder assembly, respectively. When in use, the first leg supports the bottom of the trench to transfer load and prevent slippage. Alternatively, when the ladder assembly needs to be moved, it can be detached from the trench bottom to facilitate sliding. The entire device can adaptively adjust its position according to changes in the construction location without requiring hoisting equipment, making adjusting the ladder assembly's position within the trench simpler and more convenient.

[0017] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a sliding construction ladder provided in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a sliding construction ladder provided in another embodiment of the present invention; Figure 3 This is a structural schematic diagram of a sliding construction ladder provided in another embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the rotary adjustment unit in this invention; Figure 5 This is a schematic diagram of the installation of the rotary adjustment unit in this invention.

[0019] Legend: 1. Top slide rail; 2. Slide platform; 3. Ladder assembly; 31. Support pulley; 32. First leg; 33. Support frame; 34. Vertical keel; 341. Second leg; 35. Horizontal keel; 36. Step; 37. Step keel; 381. Step connecting plate; 382. Keel connecting plate; 383. Limiting clip; 384. Limiting tooth; 391. First mounting rod; 392. Second mounting rod; 393. Handle; 4. Side slide rail. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0021] Please see Figure 1-5 The present invention provides a technical solution: a sliding construction ladder, including a top slide rail 1, a slide platform 2, and a ladder assembly 3; the top slide rail 1 is used to anchor on the road surface at the top of the trench, and the top slide rail 1 is set parallel to the trench; the slide platform 2 is installed on the top slide rail 1 and is used to slide along the length direction of the top slide rail 1; the first end of the ladder assembly 3 is connected to the slide platform 2, the second end of the ladder assembly 3 is used to be placed in the trench, the middle section of the ladder assembly 3 is provided with a support pulley 31, the support pulley 31 is used to support the side of the trench so that the ladder assembly 3 can slide relative to the side wall of the trench, and the bottom end of the ladder assembly 3 is movably installed with a first support leg 32, the first support leg 32 is used to contact the bottom surface of the trench to support the ladder assembly 3 or to detach from the bottom surface of the trench so that the ladder assembly 3 is suspended on the bottom surface of the trench; A top slide rail 1 is fixedly installed on the road surface at the top of the trench. The top slide rail 1 is set parallel to the trench, and a slide platform 2 is slidably set on the top slide rail 1. The climbing ladder assembly 3 is set on the side of the slide platform 2 near the trench for placement in the trench. The setting of the top slide rail 1 allows the climbing ladder assembly 3 to slide along the top slide rail 1. Since the top slide rail 1 is set parallel to the trench, the climbing ladder assembly 3 can slide along the length of the trench. During the trench construction process, the climbing ladder assembly 3 can be moved with the construction position. When moving, it can be pushed manually. Moving the climbing ladder assembly 3 is simpler and more flexible, and there is no need to use hoisting machinery. Specifically, in order to ensure the stability of the climbing ladder assembly 3, a support pulley 31 is provided on one side of the climbing ladder assembly 3. The support pulley 31 is used to support the side of the groove near the top slide rail 1. The support pulley 31 contacts the side of the groove to support the climbing ladder assembly 3 from the side, ensuring the stability of the climbing ladder assembly 3 during use. At the same time, the support pulley 31 can slide along the side of the groove, so it will not hinder the movement of the climbing ladder assembly 3 when it needs to be moved. The climbing ladder assembly 3 can also be moved easily. Specifically, the first leg 32 at the bottom of the climbing ladder assembly 3 is used to contact the bottom surface of the trench after the climbing ladder assembly 3 is fixed in position, so that the entire climbing ladder assembly 3 is supported on the bottom surface of the trench by the first leg 32. During the use of the climbing ladder assembly 3, the load from the user is transmitted to the bottom surface of the trench through the first leg 32. Since the trench is in an excavated state, the first leg 32 will be embedded in the soil layer of the trench bottom when it is supported on the bottom surface of the trench. The embedding of the first leg 32 into the soil layer of the trench bottom surface can prevent the climbing ladder assembly 3 from slipping during use, thereby further increasing the stability of the climbing ladder assembly 3 during use. When it is necessary to move the climbing ladder assembly 3, the first leg 32 can be moved to detach from the bottom surface of the trench. At this time, the entire climbing ladder assembly 3 is suspended on the bottom surface of the trench, and the climbing ladder assembly 3 is supported by the side of the trench through the support pulley 31. Thus, the climbing ladder assembly 3 can be moved along the length of the trench, and the climbing ladder assembly 3 can be moved to the next working area. This device uses a top slide rail 1 installed on the top surface of the trench, with a sliding platform 2 slidably mounted on the top slide rail 1. The climbing ladder assembly 3 is then installed on the sliding platform 2, allowing the climbing ladder assembly 3 to slide and change position within the trench. A support pulley 31 is provided on one side of the climbing ladder assembly 3, providing support to the side of the trench without hindering its normal sliding. The bottom of the climbing ladder assembly 3 also has a first support leg 32, which can either rest on the bottom surface of the trench or remain in contact with it. Corresponding to the use state and sliding state of the climbing ladder component 3, when the climbing ladder component 3 is in use, it can be supported on the bottom surface of the trench by the first support leg 32 to transfer the load and keep the climbing ladder component 3 from slipping, or when the climbing ladder component 3 needs to be moved, it can be disengaged from the bottom surface of the trench to facilitate the sliding of the climbing ladder component 3. The overall device can be adaptively adjusted according to the changes in the construction position during use, and there is no need to use hoisting equipment to lift the climbing ladder component 3 as a whole during adjustment, making it simpler and more convenient to adjust the position of the climbing ladder component 3 in the trench.

[0022] Furthermore, the climbing ladder assembly 3 is rotatably mounted on the slide table 2 along the horizontal axis, and a support unit is movably mounted on the climbing ladder assembly 3. The support pulley 31 is mounted on the support unit, and the support unit is used to adjust the distance between the support pulley 31 and the climbing ladder assembly 3 and / or adjust the height of the support pulley 31 on the climbing ladder assembly 3. The depth or width of the trench may vary in different trenches or at different locations within the same trench. When the climbing ladder assembly 3 is rotated along the horizontal axis and mounted on the slide table 2, the angle between the climbing ladder assembly 3 and the horizontal plane can be adjusted. With the length of the climbing ladder assembly 3 remaining constant, changing the angle of the climbing ladder assembly 3 within the trench can alter the height and horizontal distance from the bottom of the climbing ladder assembly 3 to the slide table 2, thereby adapting to trenches of different depths or widths or different depths within the trench. This increases the applicability of the overall device, allowing it to be reused in different trenches and significantly reducing construction costs. Specifically, after changing the angle of the climbing ladder assembly 3, the distance between the support pulley 31 on the climbing ladder assembly 3 and the side of the trench will also change. In order to ensure that the support pulley 31 can always be supported on the side of the trench, a support unit is provided between the climbing ladder assembly 3 and the support pulley 31. The support unit is used to adjust the distance between the support pulley 31 and the climbing ladder assembly 3 or to adjust the height of the support pulley 31 on the climbing ladder assembly 3. Thus, after the angle of the climbing ladder assembly 3 changes, the support pulley 31 can still abut against the side of the trench, ensuring the support effect of the support pulley 31 on the climbing ladder assembly 3.

[0023] Figure 1-2 The first example of a support unit is disclosed. The support unit includes a support frame 33 that is slidably disposed on the ladder assembly 3 along the length direction of the ladder assembly 3. A support pulley 31 is disposed at the end of the support frame 33 away from the ladder assembly 3, so that the support pulley 31 can be driven to slide along the length direction of the ladder assembly 3 by the support frame 33. The support frame 33 is provided with a fixing member for fixing the position of the support frame 33. like Figure 1 As shown, in this example, the support unit includes a support frame 33, and a support pulley 31 is installed at the end of the support frame 33 away from the ladder assembly 3. The support frame 33 is slidably mounted on the ladder assembly 3 along its length. Since the distance from different positions of the ladder assembly 3 to the side of the trench is different, changing the position of the support frame 33 in the length direction of the ladder assembly 3 can make the support pulley 31 closer to or further away from the side of the trench. Thus, by adjusting the position of the support frame 33 in the length direction of the ladder assembly 3, the support pulley 31 can be abutted against the side of the trench at different angles of the ladder assembly 3, thereby adapting to trenches of different depths. At the same time, the side of the trench has two states, inclined and vertical, during the construction process. When the support pulley 31 is installed by the support frame 33, it can be applied to the inclined or vertical slope of the trench, making it more widely applicable. Specifically, the fasteners on the support frame 33 are conventional technologies. The position of the support frame 33 on the ladder assembly 3 can be fixed by the cooperation of pins and holes. Holes are opened on the ladder assembly 3 and the support frame 33. By aligning the holes on the support frame 33 with the holes at different positions on the ladder assembly 3 and inserting the pins, the position of the support frame 33 on the ladder assembly 3 can be adjusted.

[0024] Figure 3 A second example of a support unit is disclosed. The support unit includes a vertical keel 34 and a horizontal keel 35. The top end of the vertical keel 34 is fixedly connected to the slide table 2, and the bottom end of the vertical keel 34 is fixedly connected to the horizontal keel 35. The end of the horizontal keel 35 away from the vertical keel 34 is connected to the ladder assembly 3. The connection position of the ladder assembly 3 on the horizontal keel 35 is adjustable or the horizontal keel 35 is telescopic to adjust the tilt angle of the ladder assembly 3. The support pulley 31 is provided on the vertical keel 34. like Figure 3 As shown, in this example, the support unit includes a vertical keel 34 and a horizontal keel 35. The top of the vertical keel 34 is fixedly connected to the slide table 2, and the horizontal keel 35 is fixedly installed at the bottom of the vertical keel 34. The end of the horizontal keel 35 away from the vertical keel 34 is connected to the ladder assembly 3. The vertical keel 34, the horizontal keel 35 and the ladder assembly 3 are arranged in a triangle. The ladder assembly 3 is connected by the horizontal keel 35, so that the ladder assembly 3 maintains stability in the horizontal direction and is more stable during use. In order to accommodate the angle adjustment of the ladder component 3, the connection position between the ladder component 3 and the horizontal keel 35 needs to be adjustable or the horizontal keel 35 needs to be a telescopic structure, so that the ladder component 3 can be adjusted according to the depth of the groove, and can still maintain the connection with the horizontal keel 35 after the angle of the ladder component 3 is adjusted, so as to ensure the support of the horizontal keel 35 for the ladder component 3. The adjustable position of the ladder component 3 on the horizontal keel 35 or the telescopic structure of the horizontal keel 35 are conventional technical means in this field, and will not be described in detail here. Specifically, the support pulley 31 is set on the side of the vertical keel 34. Since the vertical keel 34 is fixed on the slide table 2, the distance between the vertical keel 34 and the side of the trench remains fixed. When adjusting the angle of the ladder assembly 3, the position of the vertical keel 34 and the support pulley 31 will not change, which can ensure that the support pulley 31 always remains in contact with the side of the trench. After changing the angle of the ladder assembly 3, there is no need to adjust the support pulley 31. Furthermore, the vertical keel 34 includes a telescopic rod, and a second support leg 341 is movably installed at the bottom end of the vertical keel 34. The second support leg 341 is used to contact the bottom surface of the trench to support the vertical keel 34 or to detach from the bottom surface of the trench so that the vertical keel 34 is suspended on the bottom surface of the trench. like Figure 3 As shown, in this example, the vertical keel 34 is a telescopic rod, and a second support leg 341 is movably installed at the bottom of the vertical keel 34. The vertical keel 34 can be adjusted according to the depth of the trench. At the same time, the vertical keel 34 can be supported on the bottom surface of the trench by the second support leg 341. The vertical keel 34 and the climbing ladder assembly 3 are supported on the bottom surface of the trench together. The vertical keel 34 can share the load on the climbing ladder assembly 3 when it is working, thereby reducing the load on the climbing ladder assembly 3, the horizontal keel 35 and the slide 2. The contact points between the overall structure and the trench are increased, making the overall structure more stable and safer during the use of the climbing ladder assembly 3.

[0025] Specifically, the ladder assembly 3 includes multiple steps 36 and step keel 37 for mounting the steps 36. The multiple steps 36 are spaced apart along the length of the step keel 37. The steps 36 are rotatably mounted on the step keel 37, and one end of the steps 36 is provided with a rotation adjustment unit for fixing the angle of the steps 36. One end of the step keel 37 is rotatably connected to the slide 2, and the other end is connected to the first support leg 32. like Figure 3 As shown, the ladder assembly 3 includes multiple steps 36 and a step keel 37 for mounting the steps 36. The step keel 37 is used to connect with the slide 2, the first leg 32, and the support unit. The steps 36 are set on the step keel 37 for workers to step on. When adjusting the angle of the ladder assembly 3, the step keel 37 needs to be rotated. After the step keel 37 is rotated, the angle of the steps 36 mounted on the step keel 37 will also change. In order to ensure the safety of the ladder assembly 3 during use, it is necessary to ensure that the steps 36 are kept in a horizontal state. Therefore, after the angle of the step keel 37 changes, the angle of the steps 36 mounted on it also needs to be adjusted. Thus, the steps 36 are mounted on the step keel 37 by a rotation adjustment unit to adjust the angle of the steps 36 so that the steps 36 can be kept in a horizontal state. Specifically, the rotation adjustment unit includes a step connecting plate 381, a keel connecting plate 382, ​​and a limiting card 383. The step connecting plate 381 is rotatably disposed within the keel connecting plate 382. The keel connecting plate 382 is fixedly disposed on the step keel 37. The step 36 is fixedly disposed on the step connecting plate 381. The outer circumferential surface of the keel connecting plate 382 and the inner circumferential surface of the step connecting plate 381 are provided with limiting teeth 384. The limiting card 383 is detachably sleeved on the step connecting plate 381 and the keel connecting plate 382. The limiting card 383 is used to engage with the limiting teeth 384 on both the step connecting plate 381 and the keel connecting plate 382 to limit the relative rotation of the step connecting plate 381 and the keel connecting plate 382. like Figure 4-5As shown, the rotation adjustment assembly includes a step connecting plate 381, a keel connecting plate 382, ​​and a limiting clip 383. The step connecting plate 381 is rotatably disposed within the keel connecting plate 382, ​​and the step connecting plate 381 and the keel connecting plate 382 are respectively connected to the step 36 and the keel, thereby enabling the step 36 to rotate on the step keel 37. In order to fix the angle of the step 36 on the step keel 37, limiting teeth 384 are provided on the inner circumferential surface of the step connecting plate 381 and the outer circumferential surface of the keel connecting plate 382. The limiting clip 383 engages with the limiting teeth 384 on both the step connecting plate 381 and the keel connecting plate 382 to lock the step connecting plate 381 and the keel connecting plate 382, ​​so that the step connecting plate 381... 1. The step 36 is fixed relative to the keel connecting plate 382. At this time, the step 36 and the step keel 37 are fixed relative to each other, so as to realize the angle adjustment and fixation of the step 36. After the angle of the step keel 37 is adjusted, the angle of the step 36 can be adjusted so that the step 36 is kept in a horizontal state to ensure safety during use. At the same time, the use of the limit card 383 and the limit tooth 384 makes the operation simple. When it is necessary to adjust the angle of the step 36, the limit card 383 is removed from the step connecting plate 381 and the keel connecting plate 382. At this time, the step 36 can rotate freely. After the step 36 has rotated, the limit card 383 is locked onto the step connecting plate 381 and the keel connecting plate 382 to lock the angle of the step 36. like Figure 4-5 As shown, the inner circumferential surface of the step connecting plate 381 and the outer circumferential surface of the keel connecting plate 382 are provided with multiple limiting teeth 384. The limiting teeth 384 are circumferentially and equally spaced on the inner circumferential surface of the step connecting plate 381 and the outer circumferential surface of the keel connecting plate 382, ​​ensuring that the rotation adjustment range of the step 36 can cover the angle adjustment range of the step keel 37.

[0026] Furthermore, a handrail is provided on the step keel 37. The handrail includes a first mounting rod 391, a second mounting rod 392, and at least two grip rods 393. The first mounting rod 391 is fixed to the slide table 2, and the second mounting rod 392 is hinged to the end of the step keel 37 away from the slide table 2. Both the first mounting rod 391 and the second mounting rod 392 are installed vertically. The two ends of the grip rods 393 are respectively hinged to the first mounting rod 391 and the second mounting rod 392. The multiple grip rods 393 are arranged vertically at intervals, and the multiple grip rods 393 are parallel to each other with respect to the step keel 37. like Figure 1-3As shown, a handrail is provided on the step keel 37. When workers go up or down the groove through the step keel 36 assembly, they can hold the handrail to maintain stability. The handrail includes a first mounting rod 391, a second mounting rod 392, and multiple grips 393. The first mounting rod 391 is fixed on the slide table 2. The second mounting rod 392 is installed at the end of the step keel 37 away from the slide table 2. Both the first mounting rod 391 and the second mounting rod 392 are installed vertically. The multiple grips 393 are spaced apart along the height direction between the first mounting rod 391 and the second mounting rod 392. The grips 393 are rotatably connected to the first mounting rod 391 and the second mounting rod 392. The multiple grips 393 are parallel to each other with the step keel 37. Since the multiple grips 393 are of equal length and parallel, they can always maintain a parallel state with the step keel 37 during the rotation of the step keel 37, making it convenient for workers to hold on when going up or down the groove through the ladder assembly 36 and ensuring the safety of the workers.

[0027] Specifically, such as Figure 3 As shown, the first leg 32 is hinged to the bottom of the climbing ladder assembly 3 along the horizontal axis, and the height of the first leg 32 is adjustable. After the angle of the climbing ladder assembly 3 is adjusted, the first leg 32 can be rotated to a vertical position and abut against the bottom surface of the trench to ensure the support stability of the first leg 32. At the same time, the height of the first leg 32 can be adjusted. By adjusting the height of the first leg 32, it can also adapt to trenches of different depths within a certain range. For example, when there is a height difference at different positions in the trench, the height of the first leg 32 can be adjusted to adapt to different positions in the trench without adjusting the climbing ladder assembly 3, making it more convenient to use. Meanwhile, when the height of the first leg 32 is adjustable, the climbing ladder assembly 3 can adjust its angle according to the width of the groove. When the width of the groove is too small, the height of the first leg 32 is reduced, which reduces the height from the bottom of the first leg 32 to the slide 2. The angle between the climbing ladder assembly 3 and the horizontal plane can be further increased, thereby reducing the span of the climbing ladder assembly 3 in the horizontal direction, which is suitable for grooves with smaller widths. The height adjustment of the first leg 32 is a conventional technical means in the field, and a telescopic rod can be used, which will not be described in detail here; The mounting structure of the second leg 341 on the vertical keel 34 is the same as the mounting structure of the first leg 31 on the ladder assembly 3.

[0028] Furthermore, the sliding construction ladder also includes a side rail 4, which is used to be installed on the side of the trench and to accommodate the support pulley 31. like Figure 1-3As shown, in some examples, the sliding construction ladder also includes a side rail 4 set on the side of the trench. During trench construction, the side is protected by support plates to prevent collapse. The support plates cannot be completely flush. In order to allow the support pulley 31 to move smoothly on the side of the trench, the side rail 4 is set on the side of the trench. The support pulley 31 contacts the side rail 4, thereby ensuring the smooth sliding of the ladder assembly 3.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sliding construction ladder, characterized in that: The utility model relates to a kind of ladder climbing assembly, including top slide rail (1), slide table (2) and ladder climbing assembly (3); The top slide rail (1) is used to anchor on the road surface on one side of the top of the trench, and the top slide rail (1) is used to be arranged in parallel with the trench; The slide table (2) is installed on the top slide rail (1) and is used to slide along the length direction of the top slide rail (1); The first end of the ladder climbing assembly (3) is connected with the slide table (2), the second end of the ladder climbing assembly (3) is used to be placed in the trench, the middle segment position of the ladder climbing assembly (3) is provided with a support pulley (31), the support pulley (31) is used to be supported on the side of the trench to make the ladder climbing assembly (3) be arranged to slide relative to the side wall of the trench, the bottom end of the ladder climbing assembly (3) movably installs a first supporting leg (32), and the first supporting leg (32) is used to contact the bottom surface of the trench to support the ladder climbing assembly (3) or be separated from the bottom surface of the trench to make the ladder climbing assembly (3) be suspended on the bottom surface of the trench.

2. A sliding construction ladder stand according to claim 1, characterized in that: The ladder climbing assembly (3) is arranged to rotate along the horizontal axis on the slide table (2), and a support unit is movably arranged on the ladder climbing assembly (3), the support pulley (31) is arranged on the support unit, and the support unit is used to adjust the distance between the support pulley (31) and the ladder climbing assembly (3) and / or adjust the height of the support pulley (31).

3. A sliding construction ladder stand according to claim 2, characterized in that: The support unit includes a support frame (33) arranged to slide along the length direction of the ladder climbing assembly (3) on the ladder climbing assembly (3), and the support pulley (31) is arranged at one end of the support frame (33) away from the ladder climbing assembly (3) to drive the support pulley (31) to slide along the length direction of the ladder climbing assembly (3) through the support frame (33), and the support frame (33) is provided with a fixing member for fixing the position of the support frame (33).

4. A sliding construction ladder stand according to claim 2, wherein: The support unit includes a vertical keel (34) and a horizontal keel (35), the top end of the vertical keel (34) is fixedly connected to the slide table (2), the bottom end of the vertical keel (34) is fixedly connected to the horizontal keel (35), one end of the horizontal keel (35) away from the vertical keel (34) is connected to the ladder climbing assembly (3), the connection position of the ladder climbing assembly (3) on the horizontal keel (35) is adjustable, or the horizontal keel (35) is telescopic, so as to adjust the inclination angle of the ladder climbing assembly (3), and the support pulley (31) is arranged on the vertical keel (34).

5. A sliding construction ladder stand according to claim 4, wherein: The vertical keel (34) includes a telescopic rod, and a second supporting leg (341) is movably installed at the bottom end of the vertical keel (34), and the second supporting leg (341) is used to contact the bottom surface of the trench to support the vertical keel (34) or be separated from the bottom surface of the trench to make the vertical keel (34) be suspended on the bottom surface of the trench.

6. A sliding construction ladder stand according to claim 1, wherein: The ladder assembly (3) comprises a plurality of steps (36) and a step keel (37) for mounting the steps (36), the plurality of steps (36) are arranged at intervals along the length direction of the step keel (37), the steps (36) are rotationally arranged on the step keel (37), one end of the step (36) is provided with a rotation adjusting unit for fixing the angle of the step (36), one end of the step keel (37) is rotationally connected to the sliding table (2), and the other end is connected to the first supporting leg (32).

7. A sliding construction ladder stand according to claim 6, characterized in that: The rotation adjusting unit comprises a step connecting disc (381), a keel connecting disc (382) and a limiting card (383), the step connecting disc (381) is rotationally arranged in the keel connecting disc (382), the keel connecting disc (382) is fixedly arranged on the step keel (37), the step (36) is fixedly arranged on the step connecting disc (381), the outer circumferential surface of the keel connecting disc (382) and the inner circumferential surface of the step connecting disc (381) are provided with limiting teeth (384), the limiting card (383) is detachably sleeved on the step connecting disc (381) and the keel connecting disc (382), and the limiting card (383) is used for simultaneously being connected with the limiting teeth (384) on the step connecting disc (381) and the limiting teeth (384) on the keel connecting disc (382) to limit the relative rotation of the step connecting disc (381) and the keel connecting disc (382).

8. A sliding construction ladder stand according to claim 6, wherein: The step keel (37) is provided with a handrail, the handrail comprises a first mounting rod (391), a second mounting rod (392) and at least two handle rods (393), the first mounting rod (391) is fixedly arranged on the sliding table (2), the second mounting rod (392) is hingedly arranged on one end of the step keel (37) away from the sliding table (2), and the first mounting rod (391) and the second mounting rod (392) are both vertically arranged, the two ends of the handle rod (393) are hingedly connected with the first mounting rod (391) and the second mounting rod (392) respectively, a plurality of the handle rods (393) are arranged at intervals in the vertical direction, and the plurality of handle rods (393) are parallel to the step keel (37).

9. A sliding construction ladder stand according to claim 1, wherein: The first supporting leg (32) is hingedly arranged at the bottom end of the ladder assembly (3) along a horizontal axis, and the height of the first supporting leg (32) is adjustable.

10. The sliding construction ladder stand of claim 1, wherein: The sliding construction ladder further comprises a side sliding rail (4), the side sliding rail (4) is used for being mounted on the side of the groove and is used for accommodating the supporting pulley (31).

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