Sectional type transfer ladder stand

Abstract

The utility model relates to the technical field of crawling ladders, in particular to a sectional type transfer crawling ladder which comprises two crawling ladder mechanisms which are arranged in a bilateral symmetry mode. The ladder stand mechanism comprises a third ladder stand section and two adjusting assemblies which are sequentially arranged in the longitudinal direction, a second ladder stand section is arranged at the top of the adjusting assembly close to the third ladder stand section, and a first ladder stand section is arranged at the top of the adjusting assembly far away from the third ladder stand section; the adjusting assembly comprises a bottom plate, sliding rails are fixedly connected to the tops of the two ends of the bottom plate respectively, a plurality of sliding blocks are slidably connected to the sliding rails at intervals, and the tops of the sliding blocks are fixedly connected to the bottoms of the corresponding ends of the supporting plate respectively. The first crawling ladder section and the second crawling ladder section are fixedly arranged at the tops of the supporting plates at the corresponding positions respectively. The transfer ladder stand has the following beneficial effects that the transfer convenience of the transfer ladder stand is improved; the stability of the movable crusher during transferring is improved; and the distance between the two loading gentle slopes can be flexibly adjusted, so that the transfer efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of climbing ladders, in particular to a segmented transfer climbing ladder. Background Art

[0002] A mobile crusher, also known as a mobile screening station or a mobile impact crusher station, is mainly used for crushing and screening materials such as ores, building stones, and construction solid wastes. Its structural dimensions and the total machine weight are often large, and it has a certain climbing ability (the slope is 6° - 8°). In actual use, in order to facilitate the flexible transfer of the mobile crusher, a special climbing ladder is often required.

[0003] For example, in the patent document with the patent publication number CN211643936U, a special portable loading device for a mobile crushing station is disclosed. It includes a connecting section mechanism, a top section mechanism, a middle section mechanism, and a tail section mechanism connected in sequence; the connecting section mechanism, the top section mechanism, the middle section mechanism, and the tail section mechanism all include vertical support plates, and adjacent vertical support plates are spliced and fixed to each other or connected and fixed through connecting plates; the top of the vertical support plate of the connecting section mechanism is fixed with a connecting section horizontal support plate, and the connecting section horizontal support plate is matched with the climbing ladder of the flatbed trailer; the top of the vertical support plate of the top section mechanism is fixed with a top section horizontal support plate, the top of the vertical support plate of the middle section mechanism is fixed with a middle section horizontal support plate, and the top of the vertical support plate of the tail section mechanism is fixed with a tail section horizontal support plate; the top section horizontal support plate, the middle section horizontal support plate, and the tail section horizontal support plate are spliced in sequence to form an inclined surface of 5 - 15°, and the top surface of the top section horizontal support plate is spliced with the top surface of the climbing ladder of the flatbed trailer, and the bottom surface of the tail section horizontal support plate is spliced with the ground.

[0004] It can be seen from the existing technical literature that this loading device can realize the transfer of the mobile crusher through the sequential connection of the connecting section mechanism, the top section mechanism, the middle section mechanism, and the tail section mechanism. At the same time, through the segmented design, the portability of the device is greatly improved. However, in actual use, in order to support the wheels or tracks on both sides of the mobile crusher respectively, two sets of climbing ladders are often required. However, this loading device lacks a mechanism for accurately positioning and firmly connecting the two sets of climbing ladders. In order to adapt to the axial dimensions of the wheel axles of different mobile crushers, it is often necessary to manually adjust the positions of the two sets of climbing ladders. Therefore, the adaptability and flexibility of this loading device are poor, and rapid transfer cannot be achieved.

[0005] Therefore, the utility model optimizes and improves according to the problem that the climbing ladder in the existing technology cannot be quickly positioned, and hereby provides a segmented transfer climbing ladder to better solve the problems in the existing technology. Summary of the Utility Model

[0006] To solve one of the above technical problems, the technical solution adopted by the utility model is as follows: a segmented transfer climbing ladder, which includes two climbing ladder mechanisms arranged horizontally, and the two climbing ladder mechanisms are symmetrically arranged left and right;

[0007] Each climbing ladder mechanism includes a third climbing ladder segment and two adjusting components arranged in sequence longitudinally. A second climbing ladder segment is provided at the top of the adjusting component close to the third climbing ladder segment, and a first climbing ladder segment is provided at the top of the adjusting component far from the third climbing ladder segment. The first climbing ladder segment, the second climbing ladder segment and the third climbing ladder segment are connected end to end in sequence, and the top climbing surfaces of the three are coplanar;

[0008] Each adjusting component includes a bottom plate. Slide rails are fixedly connected transversely at the tops of both ends of the bottom plate. A plurality of sliders are slidably connected to each slide rail at intervals. A support plate is also included, and the tops of the sliders are fixedly connected to the bottoms of the corresponding ends of the support plate respectively;

[0009] The first climbing ladder segment and the second climbing ladder segment are respectively fixedly arranged at the top of the support plate at the corresponding positions, and the corresponding side parts of the bottom plates of two adjacent adjusting components are in contact with each other.

[0010] In any of the above solutions, preferably, a platform is fixedly connected transversely on the top surface of the middle part of the bottom plate. A plurality of threaded holes are evenly spaced along the length direction of the platform. The bottom of the support plate presses against the top of the platform. Earcaps are integrally formed at the corresponding positions on the left and right side parts of the support plate respectively. Two hexagon bolts are also included. The two hexagon bolts respectively pass through the through holes on the corresponding earcaps and are threadedly connected to the threaded holes at the corresponding positions.

[0011] In any of the above solutions, preferably, the first climbing ladder segment includes two first box girders arranged transversely at intervals. Both first box girders are arranged longitudinally. The corresponding end parts of the two first box girders are fixedly connected by first connecting square steels. A first strengthening plate is arranged in the space between the two first box girders. The two ends of the first strengthening plate are respectively fixedly lapped on the first connecting square steels at the corresponding positions. A plurality of first anti-slip strips are fixedly connected at intervals along the length direction on the top climbing surfaces of the first strengthening plate and the two first box girders. A first support frame is fixedly connected to the bottom of the first strengthening plate and the two first box girders. The bottom of the first support frame is fixedly arranged at the top of the support plate at the corresponding position.

[0012] Preferably, in any of the above solutions, the second ladder section includes two second box beams arranged at intervals in the transverse direction. Both of the second box beams are arranged in the longitudinal direction. The corresponding end parts of the two second box beams are fixedly connected by second connecting square steels. A second reinforcing plate is arranged in the space between the two second box beams. The two ends of the second reinforcing plate are respectively fixedly lapped on the second connecting square steels at corresponding positions. A plurality of second anti-slip strips are fixedly connected at intervals along the length direction on the top climbing surfaces of the second reinforcing plate and the two second box beams. Second support frames are fixedly connected to the bottom of the second reinforcing plate and the two second box beams. The bottoms of the second support frames are fixedly arranged on the tops of the corresponding support plates.

[0013] Preferably, in any of the above solutions, a plurality of connection holes are spaced apart on the top of the support plate. The bottoms of the first support frame and the second support frame are fixedly connected to the respective connection holes on the corresponding support plate by means of threaded connection.

[0014] Preferably, in any of the above solutions, the third ladder section includes two third box beams arranged at intervals in the transverse direction. Both of the third box beams are arranged longitudinally. A plurality of third connecting square steels are fixedly connected at intervals along the length direction in the space between the two third box beams. A third reinforcing plate is further included. The bottom of the third reinforcing plate is fixedly lapped on each of the third connecting square steels. A plurality of third anti-slip strips are fixedly connected at intervals along the length direction on the top climbing surfaces of the third reinforcing plate and the two third box beams;

[0015] The corresponding end parts of the third box beam and the second box beam are detachably and fixedly connected.

[0016] Preferably, in any of the above solutions, the slopes of the top climbing surfaces of the first box beam, the second box beam, and the third box beam are all °.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The present utility model divides the overall structure of the transfer ladder into three sections, and at the same time divides the bottom structure for supporting the transfer ladder into four adjustment components, which can greatly improve the transfer convenience of the present utility model itself.

[0019] 2. By aligning and fixedly connecting each bottom plate, the present utility model not only facilitates the positioning of the transfer ladder, but also can increase the contact area with the soft ground, thereby effectively preventing the transfer ladder from sinking during use, and further improving the stability of the ladder during the transfer process of the mobile crusher.

[0020] 3. Through the respective connection holes at the top of the support plate, the present utility model can facilitate the precise positioning and stable connection of the first ladder section and the second ladder section. Meanwhile, under the sliding connection of the slide rail and the slider, the support plate can slide, realizing the flexible movement of the first ladder section and the second ladder section. Thus, it is convenient for the operator to flexibly adjust the distance between the two uphill ramps according to the size of the mobile crusher to be transported. In this way, when transporting various mobile crushers with different sizes in the same site, the transportation efficiency can be greatly improved.

[0021] 4. Through the fixed connection of the threaded holes, the ear plates and the hexagon bolts, the present utility model can realize the final positioning of the support plate, thus facilitating the subsequent use of the transportation ladder and ensuring the stability when the mobile crusher slowly climbs on the transportation ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the specific embodiments of the present utility model, the following will briefly introduce the drawings required for the specific embodiments. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to actual scale.

[0023] Figure 1 It is a top view of the transportation ladder of the present utility model.

[0024] Figure 2 It is a top view of the ladder mechanism of the present utility model.

[0025] Figure 3 It is a schematic connection structure diagram of two adjusting components of the same ladder mechanism in the top view direction of the present utility model.

[0026] Figure 4 It is a top view of the first ladder section of the present utility model.

[0027] Figure 5 It is a top view of the second ladder section of the present utility model.

[0028] Figure 6 It is a top view of the third ladder section of the present utility model.

[0029] Figure 7 It is a side view of the ladder mechanism of the present utility model.

[0030] Figure 8 It is a side view of the adjusting component of the present utility model.

[0031] In the figure, 1 is the bottom plate; 2 is the slide rail; 3 is the slider; 4 is the support plate; 5 is the platform; 6 is the threaded hole; 7 is the ear plate; 8 is the hexagon bolt; 9 is the first box girder; 10 is the first connecting square steel; 11 is the first reinforcing plate; 12 is the first anti-slip strip; 13 is the first support frame; 14 is the connecting hole; 15 is the second box girder; 16 is the second connecting square steel; 17 is the second reinforcing plate; 18 is the second anti-slip strip; 19 is the second support frame; 20 is the third box girder; 21 is the third connecting square steel; 22 is the third reinforcing plate; 23 is the third anti-slip strip; 24 is the lapping step; 25 is the forklift hole. Specific embodiments

[0032] The embodiments of the technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model. The specific structure of the present utility model is as Figures 1-8 shown in the figure.

[0033] A segmented transfer ladder includes two ladder mechanisms arranged horizontally, and the two ladder mechanisms are symmetrically arranged left and right;

[0034] Each ladder mechanism includes a third ladder segment arranged longitudinally in sequence and two adjusting components. A second ladder segment is provided at the top of the adjusting component close to the third ladder segment, and a first ladder segment is provided at the top of the adjusting component far from the third ladder segment. The first ladder segment, the second ladder segment and the third ladder segment are connected end to end in sequence, and the top climbing surfaces of the three are coplanar;

[0035] The adjusting component includes a bottom plate 1. Slide rails 2 are fixedly connected transversely to the tops of both ends of the bottom plate 1. A plurality of sliders 3 are slidably connected to each slide rail 2 at intervals. A support plate 4 is also included, and the tops of the sliders 3 are fixedly connected to the bottoms of the corresponding ends of the support plate 4 respectively;

[0036] The first ladder segment and the second ladder segment are respectively fixedly arranged on the top of the support plate 4 at the corresponding positions, and the corresponding side parts of the bottom plates 1 of two adjacent adjusting components are in contact with each other.

[0037] The ladder mechanism includes a first ladder segment, a second ladder segment, a third ladder segment and two adjustment components, wherein the two adjustment components are used to support the second ladder segment and the third ladder segment respectively, and the first ladder segment is directly set on the ground. At the same time, when the second ladder segment and the third ladder segment are set on the adjustment components, the position of the second ladder segment or the third ladder segment can be flexibly adjusted through the movement of the structure of the adjustment components. When the first ladder segment, the second ladder segment and the third ladder segment are connected end to end, the top climbing surfaces of the three are set in the same plane, thereby forming a walking passage with a certain slope on the top of the three.

[0038] When the utility model is used, firstly, four adjustment components are arranged on the ground in a 2×2 arrangement, and the corresponding side parts of each bottom plate 1 are aligned and abutted against each other, so as to realize the positioning of the adjustment components. Then, a group of first ladder segments are respectively arranged on the support plates 4 of the corresponding two adjustment components, and at the same time, according to the wheel axle size of the mobile crusher to be transported, the position of the two first ladder segments is adjusted by using the sliding fit connection between the slide rail 2 and the slider 3, so that the lateral spacing between the two first ladder segments can finally adapt to the mobile crusher to be transported. Then, a group of second ladder segments are respectively arranged on the support plates 4 of the other two corresponding adjustment components, and according to the position of the two first ladder segments, the two second ladder segments are moved to the designated position by the sliding fit connection between the slide rail 2 and the slider 3. Finally, a group of first ladder segments are arranged at the corresponding position on the ground. In this way, two walking gentle slopes distributed side by side can be formed, so as to facilitate the transportation of the mobile crusher.

[0039] Furthermore, in order to ensure the stable setting of each adjustment component and thus ensure the stability of the transfer ladder, the corresponding side portions on the inner side of each base plate 1 are aligned and abutted against each other, and the seam positions on the periphery of each base plate 1 are fixedly connected by bolts.

[0040] In any of the above schemes, it is preferred that a platform 5 is fixedly connected laterally to the top surface in the middle of the base plate 1, and a plurality of threaded holes 6 are evenly spaced along the length direction of the platform 5, the bottom of the support plate 4 is pressed against the top of the platform 5, and ear plates 7 are integrally formed at corresponding positions on the left and right sides of the support plate 4, and also include two hexagonal bolts 8, and the two hexagonal bolts 8 respectively pass through the corresponding through holes on the ear plates 7 and are threadedly connected to the threaded holes 6 at the corresponding positions.

[0041] After the support plate 4 moves along the slide rail 2 to the designated position, two hexagon bolts 8 are respectively passed through the ear plates 7 on the left and right sides of the support plate 4 and are threadedly connected to the corresponding threaded holes 6 on the platform 5 at the same time. In this way, the positioning of the support plate 4 can be realized, and it can be prevented from slipping during the movement and transportation process, thus avoiding safety accidents. At the same time, the bottom of the middle section of the support plate 4 presses against the top of the platform 5, so that the middle part of the support plate 4 can be supported by the platform 5, thereby further improving the bearing strength of the support plate 4.

[0042] In any of the above solutions, preferably, the first ladder section includes two first box girders 9 arranged at intervals in the transverse direction. Both of the first box girders 9 are arranged in the longitudinal direction. The corresponding end parts of the two first box girders 9 are fixedly connected by first connecting square steels 10. A first strengthening plate 11 is arranged in the space between the two first box girders 9. The two ends of the first strengthening plate 11 are respectively fixedly lapped on the first connecting square steels 10 at the corresponding positions. A number of first anti-slip strips 12 are fixedly connected along the length direction on the top climbing surfaces of the first strengthening plate 11 and the two first box girders 9. A first support frame 13 is fixedly connected to the bottom of the first strengthening plate 11 and the two first box girders 9. The bottom of the first support frame 13 is fixedly arranged on the top of the support plate 4 at the corresponding position.

[0043] The top of the first box girder 9 is a climbing surface with a certain slope. The bottoms of the two are fixedly arranged above the corresponding support plates 4 through the first support frames 13. The first support frame 13 is a frame structure jointly welded by structures such as columns, diagonal beams, transverse beams and rib plates. In order to prevent the mobile crusher from slipping when climbing on the top of the first box girder 9, first anti-slip strips 12 are arranged on the top of the first box girder 9. At the same time, in order to further improve the connection strength of each first anti-slip strip 12, a first strengthening plate 11 is fixedly arranged between the two first box girders 9, so as to play a role in supporting and strengthening the middle section of each first anti-slip strip 12.

[0044] At the same time, a lapping step 24 is integrally formed at the higher end of the first box girder 9. In this way, when the utility model is in use, the operator can lap one end of the external steel plate on the lapping step 24 and lap the other end on the loading platform of the transport vehicle. The mobile crusher slowly moves up along the climbing surface of the transport ladder and finally walks to the loading platform of the transport vehicle through the external steel plate, thus finally completing the transportation of the mobile crusher.

[0045] Preferably, in any of the above solutions, the second ladder section includes two second box girders 15 arranged at intervals in the transverse direction. Both of the second box girders 15 are arranged longitudinally. The corresponding end parts of the two second box girders 15 are fixedly connected by second connecting square steels 16 respectively. A second reinforcing plate 17 is arranged in the space between the two second box girders 15. The two ends of the second reinforcing plate 17 are respectively fixedly lapped on the second connecting square steels 16 at corresponding positions. A number of second anti-slip strips 18 are fixedly connected at intervals along the length direction on the top climbing surfaces of the second reinforcing plate 17 and the two second box girders 15. A second support frame 19 is fixedly connected to the bottom of the second reinforcing plate 17 and the two second box girders 15. The bottom of the second support frame 19 is fixedly arranged on the top of the support plate 4 at the corresponding position.

[0046] The top of the second box girder 15 has a certain climbing surface. The bottoms of the two are fixedly arranged above the corresponding support plates 4 through the second support frame 19. The second support frame 19 is a frame structure jointly welded by structures such as columns, diagonal beams, transverse beams and rib plates. The end parts of each second anti-slip strip 18 are respectively fixedly connected to the top of the second box girder 15 at the corresponding position. The middle sections of each second anti-slip strip 18 are fixedly connected at intervals to the top of the second reinforcing plate 17. In this way, while ensuring the connection strength of the second anti-slip strips 18, the phenomenon of slipping during the climbing process of the mobile breaker can be avoided by increasing the friction.

[0047] Preferably, in any of the above solutions, a number of connection holes 14 are arranged at intervals on the top of the support plate 4. The bottoms of the first support frame 13 and the second support frame 19 are fixedly connected to the respective connection holes 14 on the corresponding support plate 4 by means of threaded connection.

[0048] Through the threaded connection between the matching bolts and the connection holes 14, the first support frame 13 and the second support frame 19 can be stably and detachably fixedly connected to the corresponding support plate 4, thereby realizing the stable setting of the first ladder section and the second ladder section.

[0049] Preferably, in any of the above solutions, the third ladder section includes two third box girders 20 arranged at intervals in the transverse direction. Both of the third box girders 20 are arranged longitudinally. A number of third connecting square steels 21 are fixedly connected at intervals along the length direction in the space between the two third box girders 20. It also includes a third reinforcing plate 22. The bottom of the third reinforcing plate 22 is fixedly lapped on each of the third connecting square steels 21. A number of third anti-slip strips 23 are fixedly connected at intervals along the length direction on the top climbing surfaces of the third reinforcing plate 22 and the two third box girders 20.

[0050] The corresponding end parts of the third box girder 20 and the second box girder 15 are detachably fixedly connected.

[0051] The third box girder 20 is of a conical structure, and its bottom is directly grounded. Meanwhile, third reinforcing plates 22 are fixedly lapped on each of the third connecting square steels 21 between the two. Then, each of the third anti-slip strips 23 is arranged at intervals on the tops of the third reinforcing plates 22 and the two third box girders 20, thus playing a role in anti-slip.

[0052] Two fork holes 25 are arranged at intervals on the vertical side walls of the third box girder 20, achieving lightweight design while meeting the fork loading requirements of the forklift.

[0053] After the forklift driver forks the third box girder 20 to the designated position, the corresponding ends of the third box girder 20 and the second box girder 15 are fixedly connected by bolts, thereby realizing the fixed setting of the third box girder 20 and further ensuring the stability of the transfer ladder.

[0054] In any of the above solutions, preferably, the slopes of the top climbing surfaces of the first box girder 9, the second box girder 15, and the third box girder 20 are all 6°.

[0055] When the present utility model is in use, three ladders are assembled in sections into a ladder assembly with a slope of 6°. Further, two ladder assemblies are used in combination to form a 6° boarding passage for the mobile crusher to climb, thus finally solving the small-angle climbing requirement of the mobile crusher product.

[0056] Specific working principle:

[0057] The operator first arranges the adjusting components in a 2×2 distribution manner at the designated position, and at the same time ensures that the corresponding sides of the inner sides of each bottom plate 1 are aligned and abutted against each other. Then, the seam positions around each bottom plate 1 are fixedly connected by bolts. Then, according to the size of the mobile crusher to be transferred, each support plate 4 is respectively moved along its corresponding slide rail 2 to the designated position, and the positioning of the support plate 4 is realized through the cooperative connection of the threaded hole 6, the ear plate 7, and the hexagon bolt 8.

[0058] After the position of the support plate 4 is fixed, the first support frames 13 of the two first ladder sections are respectively fixed on the tops of the corresponding support plates 4. Then, the second support frames 19 of the two second ladder sections are respectively fixed on the tops of the corresponding support plates 4. Then, the forklift is used to fork the two third ladder sections to the corresponding positions respectively, and each third box girder 20 is respectively fixedly connected with the corresponding second box girder 15 by bolts. In this way, through the sequential end-to-end connection of each group of the first ladder section, the second ladder section, and the third ladder section, a 6° boarding passage is finally obtained, thereby realizing the small-angle slow climbing of the mobile crusher.

[0059] The above has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

[0060] Those details not described in the present utility model are all well-known technologies to those skilled in the art.

Claims

1. A sectional transport ladder, characterized in that: It comprises two ladder mechanisms arranged in a transverse direction, and the two ladder mechanisms are arranged symmetrically on the left and right; The ladder mechanism comprises a third ladder segment and two adjustment components which are arranged in sequence in the longitudinal direction, a second ladder segment is arranged on the top of the adjustment component close to the third ladder segment, and a first ladder segment is arranged on the top of the adjustment component away from the third ladder segment, the first ladder segment, the second ladder segment and the third ladder segment are connected end to end in sequence and the top climbing surfaces of the three are arranged in the same plane; The adjustment assembly comprises a base plate (1), the tops of both ends of the base plate (1) are respectively fixedly connected with slide rails (2) in a transverse direction, each of the slide rails (2) is slidably connected with a plurality of sliders (3) at intervals, and also comprises a support plate (4), the tops of each of the sliders (3) are respectively fixedly connected to the bottoms of the corresponding ends of the support plate (4); The first ladder segment and the second ladder segment are respectively fixedly arranged on the top of the support plate (4) at corresponding positions, and the corresponding side portions of the bottom plates (1) of two adjacent adjustment assemblies abut against each other.

2. A sectional transfer ladder according to claim 1, characterized in that: A platform (5) is fixedly connected to the top surface of the middle part of the bottom plate (1) in the transverse direction, and a plurality of threaded holes (6) are evenly spaced along the length direction of the platform (5). The bottom of the support plate (4) is pressed against the top of the platform (5), and ear plates (7) are integrally formed at corresponding positions on the left and right sides of the support plate (4), and also include two hexagonal bolts (8), which respectively pass through corresponding through holes on the ear plates (7) and are threadedly connected to the threaded holes (6) at corresponding positions.

3. A sectional transfer ladder according to claim 2, characterized in that: The first ladder segment comprises two first box beams (9) arranged at intervals in a transverse direction, the two first box beams (9) are arranged in a longitudinal direction, the corresponding ends of the two first box beams (9) are respectively fixedly connected by first connecting square steels (10), a first reinforcing plate (11) is provided in the space between the two first box beams (9), the two ends of the first reinforcing plate (11) are respectively fixedly overlapped on the first connecting square steels (10) at corresponding positions, a plurality of first anti-slip strips (12) are fixedly connected at intervals along the length direction of the first reinforcing plate (11) and the top climbing surfaces of the two first box beams (9), a first support frame (13) is fixedly connected to the bottom of the first reinforcing plate (11) and the two first box beams (9), and the bottom of the first support frame (13) is fixedly arranged on the top of the support plate (4) at the corresponding position.

4. A sectional transfer ladder according to claim 3, characterized in that: The second ladder segment comprises two second box beams (15) arranged at intervals in the transverse direction, the two second box beams (15) are arranged in the longitudinal direction, the corresponding ends of the two second box beams (15) are respectively fixedly connected by second connecting square steels (16), a second reinforcing plate (17) is provided in the space between the two second box beams (15), the two ends of the second reinforcing plate (17) are respectively fixedly overlapped on the second connecting square steels (16) at corresponding positions, a plurality of second anti-slip strips (18) are fixedly connected at intervals along the length direction of the second reinforcing plate (17) and the top climbing surfaces of the two second box beams (15), and a second support frame (19) is fixedly connected to the bottom of the second reinforcing plate (17) and the two second box beams (15), and the bottom of the second support frame (19) is fixedly arranged on the top of the support plate (4) at the corresponding position.

5. The sectional transfer ladder according to claim 4 is characterized in that: A plurality of connection holes (14) are provided at intervals on the top of the support plate (4), and the bottoms of the first support frame (13) and the second support frame (19) are fixedly connected to the corresponding connection holes (14) on the support plate (4) by means of threaded connection.

6. A sectional transfer ladder according to claim 5, characterized in that: The third ladder segment comprises two third box beams (20) arranged at intervals in a transverse direction, the two third box beams (20) are arranged longitudinally, a plurality of third connecting square steels (21) are fixedly connected at intervals in the space between the two third box beams (20) along the length direction thereof, and also comprises a third reinforcing plate (22), the bottom of the third reinforcing plate (22) is fixedly overlapped on each of the third connecting square steels (21), and a plurality of third anti-slip strips (23) are fixedly connected at intervals in the length direction thereof on the top climbing surfaces of the third reinforcing plate (22) and the two third box beams (20); The corresponding ends of the third box beam (20) and the second box beam (15) are detachably fixedly connected.

7. The sectional transfer ladder according to claim 6, characterized in that: The slopes of the top climbing surfaces of the first box beam (9), the second box beam (15) and the third box beam (20) are all 6°.

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