Fast-assembly type scaffold crawling ladder

Abstract

The utility model relates to the technical field of scaffold building, and provides a fast-assembly type scaffold crawling ladder which comprises a plurality of splicing assemblies which are sequentially spliced end to end to form a crawling ladder. The splicing assembly comprises two side columns which are transversely arranged at intervals and a pedal located between the two side columns, and the two ends of the pedal are connected to the adjacent sides of the two side columns correspondingly. The two ends of the side column are the inserting end and the socket end respectively, and a sleeve is arranged on the side wall of the socket end and used for containing the inserting end when the multiple splicing assemblies are spliced. According to the technical scheme, when the crawling ladder is not used, all the splicing assemblies can be detached and separated, the overall occupied area is greatly reduced, and the problem that an existing prefabricated welding crawling ladder is large in occupied area and difficult to carry and transport is solved. In the transportation process, the disassembled splicing assemblies can be compactly stacked, the loading capacity of a transportation vehicle is improved, the transportation cost is reduced, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of scaffolding construction technology, specifically, to a quick-assembly scaffolding ladder. Background Technology

[0002] In the construction industry, scaffolding is an indispensable construction facility, and ladders, as an important part of scaffolding, are the key passage for construction workers to go up and down the work surface. The rationality of its structural design directly affects the safety, efficiency and cost of construction.

[0003] Currently, most scaffolding ladders on the market are manufactured using a prefabricated welding method, meaning that the various components of the ladder are pre-welded and assembled into a single structure in the factory. This type of prefabricated scaffolding ladder has significant technical drawbacks in practical applications. Due to its fixed overall structure, it occupies a large area when not in use, causing considerable inconvenience during handling and transportation. During transportation, it requires a significant amount of transport space, limiting the loading capacity of transport vehicles and increasing transportation costs. Furthermore, handling it on the construction site requires substantial manpower and resources, especially in confined or complex construction environments, where the difficulty of handling is even greater, severely impacting construction progress.

[0004] Furthermore, the installation and dismantling of existing precast welded scaffolding ladders require specialized tools and equipment, making the process cumbersome, time-consuming, and labor-intensive. Moreover, when the construction site changes and adjustments to the ladder's position or structure are needed, the precast welded structure is difficult to adapt flexibly. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a quick-assembly scaffolding ladder, which solves the technical problem that many prefabricated and welded scaffolding ladders in the prior art occupy a large area, resulting in difficulties in handling and transportation.

[0006] According to one aspect, at least one embodiment of the present invention provides a quick-assembly scaffolding ladder, comprising a plurality of splicing components, wherein the plurality of splicing components are spliced ​​end to end in sequence to form a ladder;

[0007] The splicing assembly includes two side posts arranged laterally at intervals and a pedal located between the two side posts, with both ends of the pedal connected to adjacent sides of the two side posts respectively;

[0008] The two ends of the side column are a plug-in end and a socket end, respectively. The side wall of the socket end is provided with a sleeve. The sleeve is used to accommodate the plug-in end when several splicing components are spliced ​​together, so as to achieve a stable connection of several end-to-end spliced ​​side columns.

[0009] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, the end face of the plug-in end is provided with a connecting block, and the end face of the socket end is provided with a connecting groove. The connecting block and the connecting groove are arranged such that when several of the side columns are spliced ​​end to end, the connecting block is located in the connecting groove.

[0010] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, the end face of the plug-in end is provided with a receiving groove that communicates with one side wall, one end of the connecting block is rotatably connected to the receiving groove, and the other end is a swing end. The connecting block can rotate to allow the swing end to retract into the receiving groove or move out of the receiving groove.

[0011] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, the end face of the swing end of the connecting block is provided with a gripping groove, and the side wall of the plug-in end is provided with a clearance groove communicating with the receiving groove. The clearance groove is arranged such that when the swing end is retracted to the receiving groove, the gripping groove is exposed through the clearance groove.

[0012] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, the swing end of the connecting block is provided with a limiting hole, and the side wall of the socket end is provided with a pin hole communicating with the connecting groove. A limiting pin is slidably inserted in the pin hole. The limiting pin is arranged such that when the swing end of the connecting block enters the connecting groove, the limiting pin can slide through the pin hole and the limiting hole.

[0013] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, a protrusion is provided at one end of the limiting pin away from the socket end, and an elastic element is sleeved on the limiting pin. The two ends of the elastic element are respectively connected to the protrusion and the side wall of the socket end. The elastic element is used to elastically pull the protrusion closer to the side wall of the socket end so that the limiting pin slides into the pin hole.

[0014] For example, in at least one embodiment of this utility model, a quick-assembly scaffolding ladder further includes:

[0015] A connector is provided on the side wall of the connector, which is connected to the plug end of the side column. The side wall of the connector is provided with an overlap groove for overlapping the scaffolding to limit the position of the splicing assembly relative to the scaffolding.

[0016] For example, in at least one embodiment of this utility model, a quick-assembly scaffolding ladder further includes:

[0017] The fastener is sway-connected to the end of the connector away from the side column. The side wall of the fastener is provided with a fastening groove. The fastener can sway so that the fastening groove and the overlapping groove together cover the scaffold.

[0018] For example, in a quick-assembly scaffolding ladder provided in at least one embodiment of the present invention, a top screw is provided through the fastener, and the top screw is used to limit the position of the fastener relative to the scaffolding.

[0019] For example, in at least one embodiment of the present invention, a quick-assembly scaffolding ladder is provided in which the two ends of the tread are detachably connected to the adjacent sides of the two side columns.

[0020] The beneficial effects of the embodiments of this utility model are as follows:

[0021] In this invention, when assembling a ladder, the insertion end of the side column of the preceding splicing component is inserted into the sleeve of the receiving end of the side column of the following splicing component. The initial positioning of adjacent side columns is achieved through the cooperation of the insertion end and the sleeve. Since the sleeve is located on the side wall of the receiving end, after the insertion end is inserted into the sleeve, the two side columns form a stable connection in the vertical direction, allowing several splicing components to be sequentially assembled into a complete ladder. When disassembling the ladder is required, simply pull the insertion end out of the sleeve to separate the splicing components; the operation is simple and quick. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0023] Figure 1 This is a structural schematic diagram of a quick-assembly scaffolding ladder in one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the splicing components in the embodiment;

[0025] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the scaffolding ladder in the embodiment;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 3Enlarged view of section B in the middle.

[0028] In the diagram: 1. Splicing component; 11. Side post; 12. Pedal; 111. Insertion end; 112. Socket end; 13. Sleeve; 14. Connecting block; 113. Connecting groove; 114. Receiving groove; 141. Swinging end; 142. Grip groove; 115. Relief groove; 143. Limiting hole; 116. Pin hole; 117. Limiting pin; 1171. Protrusion; 118. Elastic element; 15. Connecting element; 151. Overlap groove; 16. Fastening element; 161. Fastening groove; 162. Set screw. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-3 The diagram illustrates a quick-assembly scaffolding ladder according to one embodiment of the present invention. This embodiment comprises several splicing components 1 assembled end-to-end to form the entire ladder. Each splicing component 1 includes two laterally spaced side columns 11 and a footboard 12 located between the two side columns 11. The side columns 11 are elongated, with a plug-in end 111 and a socket end 112 at each end. A sleeve 13 is fixedly mounted on the side wall of the socket end 112. This sleeve 13 is a hollow tubular structure, and its internal space is used to accommodate the plug-in ends 111 of adjacent splicing component 1 side columns 11 during assembly. The external dimensions of the plug-in end 111 are adapted to the internal dimensions of the sleeve 13 to ensure that the plug-in end 111 can be smoothly inserted into the sleeve 13. The two ends of the pedal 12 are respectively connected to the adjacent sides of the two side posts 11. This connection method is a detachable connection. For example, a connecting ear plate is provided on the adjacent side of the side post 11, and a connecting hole is provided at both ends of the pedal 12. The pedal 12 and the side post 11 are fixedly connected by bolts passing through the connecting hole and the through hole on the connecting ear plate.

[0036] When assembling the ladder, the insertion end 111 of the side column 11 of the preceding splicing component 1 is inserted into the sleeve 13 of the receiving end 112 of the subsequent splicing component 1 side column 11. The initial positioning of adjacent side columns 11 is achieved through the cooperation of the insertion end 111 and the sleeve 13. Since the sleeve 13 is located on the side wall of the receiving end 112, after the insertion end 111 is inserted into the sleeve 13, the two side columns 11 form a stable connection in the vertical direction, allowing several splicing components 1 to be sequentially assembled into a complete ladder. When disassembling the ladder is required, simply pull the insertion end 111 out of the sleeve 13 to separate the splicing components 1; the operation is simple and quick.

[0037] In this embodiment, the ladder adopts a structure in which several splicing components 1 are spliced ​​end to end. The side column 11 of each splicing component 1 is connected to the sleeve 13 of the socket end 112 through the insertion end 111. This structural design allows each splicing component 1 to be disassembled and separated when the ladder is not in use, which greatly reduces the overall footprint and solves the problem of difficult handling and transportation caused by the large footprint of existing prefabricated welded ladders. During transportation, the disassembled splicing components 1 can be compactly stacked, increasing the loading capacity of transport vehicles and reducing transportation costs. When handling on the construction site, the individual splicing components 1 are lightweight and small in size, making them easy to handle manually, especially in narrow or complex environments, which significantly improves construction efficiency.

[0038] The side column 11 is provided with a plug-in end 111 and a socket end 112 at both ends. The sleeve 13 of the socket end 112 is used to accommodate the plug-in end 111. This plug-in connection method does not require professional tools and equipment for installation and disassembly. Construction personnel can directly complete the assembly and disassembly of the splicing component 1 by manual operation, which simplifies the operation process and saves installation and disassembly time. At the same time, when the construction scene changes and the position or structure of the ladder needs to be adjusted, the number of splicing components 1 can be increased or decreased or the splicing method can be recombined to flexibly change the situation, so that the ladder can adapt to different construction needs and enhance the environmental adaptability of the ladder.

[0039] The two ends of the tread 12 are detachably connected to the adjacent sides of the side column 11, which facilitates the individual replacement and maintenance of damaged tread 12, reducing maintenance costs. In addition, the modular design of the splicing component 1 makes the production, transportation, installation and dismantling of the ladder more convenient and efficient, and the overall structure is stable and reliable. While ensuring the safety of construction personnel going up and down, it also improves the economy and flexibility of the construction process.

[0040] like Figures 2-5 As shown, the side post 11's insertion end 111 and socket end 112 are connected by a sleeve 13. A connecting block 14 is provided on the end face of the insertion end 111, and a connecting groove 113 matching the connecting block 14 is provided on the end face of the socket end 112. One end of the connecting block 14 is hinged to the receiving groove 114 on the end face of the insertion end 111 via a rotating shaft. This receiving groove 114 is a rectangular groove formed along the edge of the end face of the insertion end 111, with its opening direction perpendicular to the length direction of the side post 11, allowing the connecting block 14 to rotate around the rotating shaft in the horizontal plane. The other end forms a swingable free end (swinging end 141). A recessed gripping groove 142 is provided on the end face of the swinging end 141, and a clearance groove 115 communicating with the receiving groove 114 is correspondingly provided on the side wall of the insertion end 111. When the connecting block 14 is retracted into the receiving groove 114, the gripping groove 142 is exposed through the clearance groove 115, facilitating the insertion of the worker's fingers for applying force.

[0041] A limiting hole 143 is formed through the interior of the swing end 141, and the axis of the limiting hole 143 is perpendicular to the length direction of the side column 11. A pin hole 116 is formed on the side wall of the socket end 112, which connects to the connecting groove 113. The axis of the pin hole 116 is coaxial with the axis of the limiting hole 143. The limiting pin 117 is slidably inserted in the pin hole 116. A protrusion 1171 with a diameter larger than that of the pin hole 116 is fixedly provided at the end away from the socket end 112. An elastic element 118 of a helical spring is sleeved on the limiting pin 117. The two ends of the elastic element 118 are connected to the inner side of the protrusion 1171 and the outer side wall of the socket end 112, respectively, to form an elastic tension structure.

[0042] During assembly, rotating the connecting block 14 causes the swing end 141 to rotate out of the receiving groove 114 and insert itself along the groove direction of the connecting groove 113 on the socket end 112. The angle is adjusted by applying force through the gripping groove 142 until the limiting hole 143 is coaxial with the pin hole 116. At this time, the elastic element 118 is in a stretched state due to the tension of the protrusion 1171. When the swing end 141 is fully inserted into the connecting groove 113, the spring elastic force drives the protrusion 1171 to slide the limiting pin 117, allowing the limiting pin 117 to pass through the pin hole 116 and the limiting hole 143 in sequence, thus achieving mechanical locking of the connecting block 14. During disassembly, manually pulling the protrusion 1171 overcomes the spring tension to remove the limiting pin 117 from the pin hole 116, releasing the limiting of the insertion end 111. Then, rotating the connecting block 14 causes the swing end 141 to retract into the receiving groove 114.

[0043] This combined structure, through the planar limiting of the connecting block 14 and the connecting groove 113, supplements the axial positioning of the sleeve 13 insertion, forming a three-dimensional limiting system that effectively prevents relative displacement of adjacent side columns 11 in the horizontal direction. The rotatable connecting block 14 design reduces the difficulty of alignment during splicing, and the cooperation of the grip groove 142 and the clearance groove 115 enables manual operation, adapting to tool-free high-altitude work scenarios. The automatic locking mechanism composed of the limiting pin 117 and the helical spring continuously maintains the fixed state of the connecting block 14 under dynamic loads, avoiding loosening and falling off due to vibration, significantly improving connection reliability compared to a single sleeve 13 connection. At the same time, the automatic reset function of the elastic element 118 simplifies the disassembly process. The synergistic effect of the rotating connecting block 14 and the limiting pin 117 gives the ladder the advantages of rapid positioning, precise locking, and convenient disassembly during assembly, meeting the dual requirements of ladder flexibility and safety in construction scenarios.

[0044] like Figures 2-5Based on the splicing assembly 1 shown, the outer wall of the side column 11's insertion end 111 is connected to the connector 15, and the upper surface of its horizontally extending overlapping portion has an overlapping groove 151 that matches the outer diameter of the scaffold crossbar. The end of the connector 15 away from the side column 11 is hinged to the fastener 16 via a rotating shaft. The axis of the rotating shaft is perpendicular to the length direction of the overlapping groove 151, allowing the fastener 16 to swing in a vertical plane. The inner wall of the fastener 16 has a fastening groove 161 that is complementary in shape to the overlapping groove 151. When the fastener 16 swings around the rotating shaft to the closed position, the fastening groove 161 and the overlapping groove 151 together form an annular covering structure, completely enclosing the scaffold crossbar, and the connector 15 and the fastener 16 can be locked together by screws. A set screw 162 is provided through the outer wall of the fastener 16. The axis of the set screw 162 is perpendicular to the wall of the fastening groove 161. Its inner end extends into the fastening groove 161, and a hexagonal nut is provided at its outer end.

[0045] During installation, align the overlap groove 151 of connector 15 with the scaffold crossbar, and swing the fastener 16 upwards to the closed position. At this point, the fastener groove 161 and the overlap groove 151 form a complete ring. Secure the two with screws. Then, rotate the jacking screw 162 to gradually press its inner end against the surface of the crossbar until sufficient friction is generated between the jacking screw 162 and the crossbar, limiting the displacement of the fastener 16 relative to the crossbar. During disassembly, rotate the jacking screw 162 in the opposite direction to release the clamping state, and swing the fastener 16 downwards to separate the ladder from the scaffold.

[0046] This combined structure significantly improves the connection reliability between the ladder and scaffolding through a three-stage progressive connection reinforcement mechanism: the overlap groove 151 achieves initial positioning, restricting the movement of the crossbar in the horizontal plane; the annular wrapping structure of the fastener 16 provides circumferential restraint, preventing the crossbar from coming off; and the clamping action of the top screw 162 locks the connection through friction, eliminating gaps in the fit. Compared to the single overlap or binding method in existing technologies, the "positioning-wrapping-fastening" system formed by this solution exhibits stronger stability under dynamic loads, especially in the vibration environment caused by frequent use of the ladder, where the friction locking of the top screw 162 effectively prevents loosening. The swing design of the fastener 16 and the nut operation of the top screw 162 allow the installation and disassembly process to be completed with one hand without additional tools, greatly improving the efficiency of high-altitude operations. In addition, the adjustability of the top screw 162 allows the ladder to adapt to scaffold crossbars of different diameters, enhancing product versatility and reducing construction costs. This multi-dimensional connectivity innovation not only meets the stringent safety requirements of building construction but also takes into account ease of operation and economy, demonstrating significant technological advancement.

[0047] like Figures 2-5 As shown, for the connection between the pedal 12 and the side post 11, the side post 11 is provided with a connecting lug with a through hole on the adjacent side, and the pedal 12 is provided with a connecting flange with a bolt hole at both ends, so that the connection can be detached by bolts and nuts.

[0048] This structure allows for the individual removal of damaged pedals 12; replacement requires only loosening or loosening the corresponding bolts, without disassembling the entire assembly 1. The modular design allows pedals 12 to be transported and stored separately from the side posts 11, reducing volume; it also supports the replacement of pedals 12 with different functions such as anti-slip and load-bearing as needed, adapting to diverse construction requirements.

[0049] The detachable connection solves the problem of inconvenient maintenance of traditional integral welded ladders, improves the efficiency of component replacement, reduces maintenance costs, and further enhances the flexibility and practicality of the ladder by combining the modular characteristics of splicing component 1.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A quick-assembly scaffolding ladder, characterized in that, It includes several splicing components (1), which are spliced ​​together end to end to form a ladder; The splicing assembly (1) includes two side posts (11) arranged laterally at intervals and a pedal (12) located between the two side posts (11), with the two ends of the pedal (12) respectively connected to the adjacent sides of the two side posts (11); The two ends of the side column (11) are a plug-in end (111) and a socket end (112), respectively. The side wall of the socket end (112) is provided with a sleeve (13). The sleeve (13) is used to accommodate the plug-in end (111) when several splicing components (1) are spliced ​​together, so as to achieve a stable connection of several end-to-end spliced ​​side columns (11).

2. The quick-assembly scaffolding ladder according to claim 1, characterized in that, The end face of the plug-in end (111) is provided with a connecting block (14), and the end face of the socket end (112) is provided with a connecting groove (113). The connecting block (14) and the connecting groove (113) are arranged such that when a plurality of the side posts (11) are spliced ​​end to end, the connecting block (14) is located in the connecting groove (113).

3. The quick-assembly scaffolding ladder according to claim 2, characterized in that, The end face of the plug-in end (111) is provided with a receiving groove (114) that connects to one side wall. One end of the connecting block (14) is rotatably connected to the receiving groove (114), and the other end is a swing end (141). The connecting block (14) can rotate so that the swing end (141) is retracted into the receiving groove (114) or removed from the receiving groove (114).

4. A quick-assembly scaffolding ladder according to claim 3, characterized in that, The end face of the swing end (141) of the connecting block (14) is provided with a gripping groove (142), and the side wall of the plug end (111) is provided with a relief groove (115) that communicates with the receiving groove (114). The relief groove (115) is arranged such that when the swing end (141) is retracted to the receiving groove (114), the gripping groove (142) is exposed through the relief groove (115).

5. A quick-assembly scaffolding ladder according to claim 3, characterized in that, The swing end (141) of the connecting block (14) has a limiting hole (143), and the side wall of the socket end (112) has a pin hole (116) that communicates with the connecting groove (113). A limiting pin (117) slides through the pin hole (116). The limiting pin (117) is arranged such that when the swing end (141) of the connecting block (14) enters the connecting groove (113), the limiting pin (117) can slide through the pin hole (116) and the limiting hole (143).

6. A quick-assembly scaffolding ladder according to claim 5, characterized in that, The limiting pin (117) has a protrusion (1171) at one end away from the socket end (112). An elastic element (118) is sleeved on the limiting pin (117). The two ends of the elastic element (118) are respectively connected to the protrusion (1171) and the side wall of the socket end (112). The elastic element (118) is used to elastically pull the protrusion (1171) closer to the side wall of the socket end (112) so that the limiting pin (117) slides into the pin hole (116).

7. A quick-assembly scaffolding ladder according to claim 1, characterized in that, Also includes: The connector (15) is connected to the plug end (111) of the side column (11). The side wall of the connector (15) is provided with an overlap groove (151) for overlapping the scaffold to limit the position of the splicing assembly (1) relative to the scaffold.

8. A quick-assembly scaffolding ladder according to claim 7, characterized in that, Also includes: The fastener (16) is sway-connected to the end of the connector (15) away from the side column (11). The side wall of the fastener (16) is provided with a fastening groove (161). The fastener (16) can swing so that the fastening groove (161) and the overlapping groove (151) together cover the scaffold.

9. A quick-assembly scaffolding ladder according to claim 8, characterized in that, A set screw (162) is provided through the fastener (16), and the set screw (162) is used to limit the position of the fastener (16) relative to the scaffold.

10. A quick-assembly scaffolding ladder according to claim 1, characterized in that, The two ends of the pedal (12) are detachably connected to the adjacent sides of the two side posts (11).

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