A splicing mechanism for sectional ladder and ladder

Abstract

The utility model discloses a splicing mechanism and a ladder for a sectional ladder, which belongs to the technical field of ladders. The splicing mechanism includes a splicing part, through which adjacent unit bodies of the sectional ladder are connected, and also includes a supporting part, the splicing part includes a first splicing part and a second splicing part, the first splicing part and the second splicing part are respectively arranged at the ends of the adjacent unit bodies, the first splicing part and the second splicing part are detachably connected through a connecting part, the end of the supporting part is connected to the connecting part, and the supporting part is used to support the sectional ladder. The utility model is simple to assemble and easy to disassemble, and the detachable connection of the ladder structure is realized through the detachable connection of the first splicing part and the second splicing part, which can reduce the occupied space when not in use, and the splicing length of the sectional ladder can be adapted to increase or decrease according to actual use needs, the ladder is flexibly spliced ​​and assembled, and the connection is convenient and reliable; and the stable support of the ladder by the supporting part improves the safety and stability of the ladder.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladders, and more specifically relates to a splicing mechanism for sectional ladders and the ladder. Background Art

[0002] Ladders are commonly used tools for climbing, usually divided into straight ladders, herringbone ladders, telescopic ladders, etc. They play an extremely important role in engineering and daily life, and can be folded and stored when not in use.

[0003] In the prior art, most ladders are of a double-column structure, with a step structure arranged between the two columns, which are used after being fixedly connected. However, this type of ladder structure cannot provide stable support when used on a wet and soft beach or on a boat, thereby affecting the safety and security of use. In addition, the ladder cannot be easily stored and is inconvenient to install. Utility Model Content

[0004] The utility model aims at solving the technical problems existing in the prior art and provides a splicing mechanism for a sectional ladder and a ladder.

[0005] In order to solve the above technical problems, the utility model first provides a splicing mechanism for a sectional ladder, comprising a splicing portion, through which adjacent unit bodies of the sectional ladder are connected, the splicing portion comprises a first splicing portion and a second splicing portion, the first splicing portion and the second splicing portion are respectively arranged at the ends of the adjacent unit bodies, and the first splicing portion and the second splicing portion are detachably connected through a connecting portion;

[0006] The utility model also comprises a supporting part, an end of which is connected to the connecting part, and the supporting part is used for supporting the sectional ladder.

[0007] Preferably, the connecting portion includes a connecting piece and a fastener, the connecting piece connects the first splicing portion and the second splicing portion, and the fastener connects and fixes the first splicing portion, the second splicing portion and the connecting piece.

[0008] Preferably, the connecting member includes a connecting sleeve, and two ends of the connecting sleeve are respectively connected to the first splicing part and the second splicing part; the fastener includes a connecting pin and a locking member, and the locking member limits the circumferential displacement of the connecting sleeve.

[0009] Preferably, a supporting connection portion is provided on the connecting sleeve, and the locking piece connects the supporting connection portion to the supporting portion.

[0010] Preferably, the first splicing part includes a first splicing section, on which a first fixing hole is provided; the second splicing part includes a second splicing section, on which a second fixing hole is provided, and both the first splicing section and the second splicing section are adaptably connected to the connecting part.

[0011] Preferably, the first splicing section is plug-connected with the second splicing section, the connecting piece is sleeved at the plug-in overlapping position of the first splicing section and the second splicing section, a third fixing hole is provided on the connecting piece, and the positions and sizes of the first fixing hole, the second fixing hole and the third fixing hole are adapted to each other.

[0012] Preferably, the connecting member is provided with a first positioning portion, the first splicing portion is provided with a second positioning portion, the second splicing portion is provided with a third positioning portion, and both the second positioning portion and the third positioning portion are adaptably connected to the first positioning portion.

[0013] Preferably, the supporting portion comprises a supporting frame, which is arranged on the outer peripheral side of the connecting portion and has a first end fixedly connected to the connecting portion, and the supporting frame is arranged at an angle to the unit body.

[0014] Preferably, the support frame is vertically arranged to the connecting portion, and the second end of the support frame is connected to a directional wheel.

[0015] The utility model also provides a ladder, comprising a plurality of ladder section columns, wherein two adjacent ladder section columns are detachably connected via a splicing mechanism.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model is simple to assemble and easy to disassemble. The detachable connection of the ladder structure is realized through the detachable connection of the first splicing part and the second splicing part, which can reduce the occupied space when not in use, and the splicing length of the sectional ladder can be increased or decreased according to actual use needs. The ladder is flexibly spliced ​​and assembled, and the connection is convenient and reliable. Moreover, the stable support of the ladder by the support part can prevent the ladder from dangerous shaking during use, thereby improving the safety and stability of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the splicing mechanism of the utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the connection part of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first splicing section of the utility model;

[0022] Figure 4It is a structural schematic diagram of the second splicing section of the utility model;

[0023] Figure 5 It is a schematic diagram of the connection position of the connecting piece and the fastener of the utility model;

[0024] Figure 6 The structure of the connecting sleeve of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 7 The structure of the connecting sleeve of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 8 This is a schematic diagram of the structure of the connecting pin of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the support frame of the utility model.

[0028] Explanation of symbols in the figure:

[0029] 1. Splicing part; 2. Support part; 21. Support frame; 211. Connector installation part; 22. Orienting wheel; 3. First splicing part; 31. First splicing section; 32. Connection port; 33. First fixing hole; 34. First positioning groove; 4. Second splicing part; 41. Second splicing section; 42. Transition joint; 43. Second fixing hole; 44. Second positioning protrusion; 5. Connecting part; 51. Connecting sleeve; 52. Third fixing hole; 53. Third positioning protrusion; 54. Third positioning groove; 55. Connecting pin; 551. Insertion end; 552. Middle section; 553. Bottom end; 554. Locking bolt fixing hole; 555. Ring buckle; 56. Support connecting part; 57. Locking bolt and nut assembly; 6. Front stair column; 7. Rear stair column. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the following is a further detailed description of a splicing mechanism for a sectional ladder and a ladder provided by the present application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] See also Figure 1The utility model first provides a splicing mechanism for a sectional ladder, including a splicing portion 1, through which adjacent unit bodies of the sectional ladder are connected, and also includes a supporting portion 2, the splicing portion 1 includes a first splicing portion 3 and a second splicing portion 4, the first splicing portion 3 and the second splicing portion 4 are respectively arranged at the ends of adjacent unit bodies, the first splicing portion 3 and the second splicing portion 4 are detachably connected through a connecting portion 5, the end of the supporting portion 2 is connected to the connecting portion 5, and the supporting portion 2 is used to support the sectional ladder.

[0032] The utility model is simple to assemble and easy to disassemble. The detachable connection of the ladder structure is realized through the detachable connection of the first splicing part 3 and the second splicing part 4, which can reduce the occupied space when not in use, and the splicing length of the sectional ladder can be increased or decreased according to actual use needs. The ladder is flexibly spliced ​​and assembled, and the connection is convenient and reliable. Moreover, the stable support of the ladder by the support part 2 can prevent the ladder from shaking dangerously during use, thereby improving the safety and stability of the ladder.

[0033] like Figure 1 As shown, in this embodiment, the splicing structure is used to connect the front stair column 6 and the rear stair column 7 adjacently arranged in the single-column segmented detachable ladder. The front stair column 6 and the rear stair column 7 constitute adjacent units of the ladder. The detachable ladder is composed of a plurality of adjacent units connected in sequence. The first splicing portion 3 and the second splicing portion 4 are connection end structures respectively arranged on the front stair column 6 and the rear stair column 7. The first splicing portion 3 and the second splicing portion 4 are mutually detachably connected through the connecting portion 5, thereby realizing the rapid assembly and splicing of adjacent stair column arrangements.

[0034] Specifically, Figure 2-Figure 4 As shown, the first splicing part 3 includes a first splicing segment 31, and the second splicing part 4 includes a second splicing segment 41. The first splicing part 3 and the second splicing part 4 are adaptively connected through the first splicing segment 31 and the second splicing segment 41, and the first splicing segment 31 and the second splicing segment 41 are plug-connected through a connecting part 5. The connecting part 5 is sleeved on the plug-in overlapping position of the first splicing segment 31 and the second splicing segment 41. The first splicing segment 31 and the second splicing segment 41 are both adaptively connected with the connecting part 5, and a stable connection between the first splicing part 3 and the second splicing part 4 is achieved through the connecting part 5.

[0035] like Figure 3 As shown, the first splicing section 31 is a hollow circular tube structure arranged at the end of the front stair section column 6, the first splicing section 31 includes a connection port 32, the connection port 32 is arranged at the end of the first splicing section 31, and a first fixing hole 33 is arranged on the first splicing section 31. The first fixing hole 33 is arranged on the outer peripheral side of the first splicing section 31, and the first fixing hole 33 is a circular hole structure.

[0036] Furthermore, in the present embodiment, a first positioning portion is provided on the first splicing section 31 , and the first positioning portion is a first positioning groove 34 provided at the end of the first splicing section 31 , and the first positioning groove 34 is a semicircular hole structure.

[0037] Furthermore, two first fixing holes 33 and two first positioning grooves 34 are provided, and are respectively symmetrically arranged along the radial direction of the first splicing section 31. The first fixing hole 33 is a through hole structure, which is convenient for installing fasteners to connect the first splicing part 3 and the second splicing part 4. The first positioning groove 34 is a semi-open groove structure. The first fixing hole 33 and the first positioning groove 34 are arranged along the same axial direction of the first splicing section 31.

[0038] like Figure 4 As shown, the second splicing section 41 includes a transition joint 42, which is a cylindrical structure, and the radial dimension of the transition joint 42 is smaller than the radial dimension of the main section of the stair column, so that the second splicing section 41 and the connecting end of the stair column form a step-shaped connection structure; the transition joint 42 is a hollow circular tube structure with a thick wall, and a second fixing hole 43 is provided on the transition joint 42. The second fixing hole 43 is arranged on the outer peripheral side of the transition joint 42, and the second fixing hole 43 is also a circular hole-shaped through-hole structure, and the second fixing hole 43 is adapted to the position and size of the first fixing hole 33. The fastener can penetrate the first fixing hole 33 and the second fixing hole 43 in sequence, thereby realizing the connection between the first splicing part 3 and the second splicing part 4.

[0039] Furthermore, a second positioning portion is provided on the second splicing section 41 , and the second positioning portion is a second positioning protrusion 44 provided on the outer peripheral side of the end of the second splicing section, and the second positioning protrusion 44 is an arc-shaped protrusion structure.

[0040] Furthermore, in this embodiment, two second fixing holes 43 and two second positioning protrusions 44 are provided, and are respectively symmetrically arranged along the radial direction of the transition joint 42. The second fixing holes 43 and the second positioning protrusions 44 are arranged along the same axial direction of the second splicing section 41, and the second positioning protrusions 44 are arranged corresponding to the first positioning grooves 34.

[0041] In this embodiment, the connecting portion 5 includes a connecting piece and a fastener. The connecting piece connects the first splicing portion 3 and the second splicing portion 4. The first splicing portion 3, the second splicing portion 4 and the connecting piece are then connected and fixed by the fastener.

[0042] Specifically, Figure 2 , Figure 6As shown, the connecting piece includes a connecting sleeve 51, which is an annular connecting sleeve structure with a hollow interior. The two ends of the connecting sleeve 51 are respectively connected to the first splicing portion 3 and the second splicing portion 4, and the connecting sleeve 51 is sleeved at the plug-in overlapping position of the first splicing section 31 and the transition joint 42. A third fixing hole 52 is provided on the connecting sleeve 51, and the third fixing hole 52 is provided on the outer peripheral side of the connecting sleeve 51. The third fixing hole 52 is a circular hole structure, and there are two third fixing holes 52, which are radially opposite to each other along the connecting sleeve 51, and the size of the third fixing hole 52 is the same as or compatible with the size of the first fixing hole 33 and the second fixing hole 43.

[0043] Furthermore, in the present embodiment, a third positioning portion is provided on the connecting sleeve 51, and the third positioning portion is arranged at the end of the connecting sleeve 51, and two third positioning portions are provided, which are symmetrically arranged along the radial direction of the connecting sleeve 51, and the third positioning portion includes a third positioning protrusion 53 and a third positioning groove 54. The third positioning protrusion 53 and the third positioning groove 54 are the inner and outer connecting structures of the same positioning portion, and the third positioning protrusion 53 is arranged on the outer peripheral side of the end of the connecting sleeve 51, and the two positioning protrusions protrude radially outward along the connecting sleeve 51, and the third positioning groove 54 is arranged on the inner peripheral side of the end of the connecting sleeve 51, and the two positioning grooves are recessed radially outward along the connecting sleeve 51.

[0044] In this embodiment, the inner diameter of the first splicing section 31 of the first splicing part is adapted to the outer diameter of the connecting sleeve 51, and the outer diameter of the transition joint 42 of the second splicing part is adapted to the inner diameter of the connecting sleeve 51, so that the transition joint 42 can be inserted into the connecting sleeve 51, and the connection port 32 of the first splicing section is sleeved on the outer peripheral side of the connecting sleeve 51, thereby realizing stable connection of the first splicing part 3, the second splicing part 4 and the connecting sleeve 51, and the connection is convenient.

[0045] Moreover, the third positioning protrusion 53 is adaptably connected to the first positioning groove 34, and the third positioning groove 54 is adaptably connected to the second positioning protrusion 44. Therefore, when the stair section is spliced ​​and assembled, the first positioning groove 34 and the third positioning protrusion 53 can be quickly positioned and connected to achieve circumferential limitation while realizing the quick adaptability connection between the first splicing portion 3 and the connecting sleeve 51. The second positioning protrusion 44 and the third positioning groove 54 can be quickly positioned and connected to achieve circumferential limitation while realizing the quick adaptability connection between the second splicing portion 4 and the connecting sleeve 51.

[0046] like Figure 7As shown, in this embodiment, the fastener includes a connecting pin 55, which is a plug structure. The axial length of the connecting pin 55 is greater than the outer diameter of the first splicing section 31 of the first splicing part. The connecting pin 55 includes an insertion end 551, a middle section 552 and a bottom end 553. The middle section 552 has the same diameter as the insertion end 551 and is adapted to the size of the third fixing hole 52 on the connecting sleeve 51. The diameter of the bottom end of the connecting pin 55 is greater than the diameter of the middle section, and a variable cross-section transition section is set between the middle section 552 and the bottom end 553.

[0047] In this embodiment, the axial dimensions of the first splicing section 31, the second splicing section 41 and the connecting sleeve 51 are adapted to each other, and stably connected to each other, thereby realizing a stable connection between adjacent units of the sectional ladder. After the first splicing section 3 and the second splicing section 4 are connected through the connecting sleeve 51, they are then connected and fixed through the connecting pin 55. The insertion end 551 of the connecting pin 55 passes through the first fixing hole 33, the third fixing hole 52 and the second fixing hole 43 in sequence, and then extends to the other side of the first splicing section 3, thereby connecting the first splicing section 3, the second splicing section 4 and the connecting sleeve 51 through the connecting pin 55.

[0048] Furthermore, as a preferred embodiment of the utility model, a locking component is provided on the connecting pin 55, and the locking component is arranged at the end of the connecting pin 55. When the connecting pin 55 is inserted into the fixing hole, the movement of the connecting pin 55 is limited by the locking component, so that the connecting pin 55 is fixed, thereby ensuring the safety and stability of the connection.

[0049] Specifically, the locking component can be a locking bolt arranged at the end of the connecting pin. A locking bolt fixing hole 554 is provided at the end of the connecting pin 55. The locking bolt is inserted into the locking bolt fixing hole 554 of the connecting pin 55. The locking bolt is arranged vertically to the connecting pin 55. The position of the connecting pin 55 after installation is locked by the locking bolt to avoid affecting the safety of the connection.

[0050] Furthermore, as a preferred embodiment of the utility model, the end of the connecting pin 55 is connected with a circular ring buckle 555, and an anti-loss rope can be connected to the circular ring buckle 545. The other end of the anti-loss rope can be detachably connected to the main pipe of the ladder section. The relative position of the connecting pin 55 can be ensured by the anti-loss rope to prevent the connecting pin 55 from being lost when not in use.

[0051] The utility model connects components by providing a connecting pin 55, and with the cooperation of a locking component, the safety and stability of the connection are improved. The safety and stability of the ladder section splicing are ensured through the connection of the high-safety and high-stability connecting pin 55, and the safety of the operators is ensured.

[0052] Furthermore, a supporting connection portion 56 is provided on the connecting sleeve 51, and the fastener also includes a locking member, which can limit the circumferential displacement of the connecting sleeve. The locking member connects the supporting connection portion 56 with the supporting portion 2, thereby connecting the connecting sleeve 51 with the supporting portion 2 through the supporting connection portion 56 and the locking member, and the supporting portion 2 realizes an effective supporting effect on the ladder.

[0053] Specifically, Figure 8 As shown, the support connection part 56 is arranged at the end of the connecting sleeve 51. The support connection part 56 is a support plate structure, including a circular ring plate in the middle and a double-ear plate structure protruding outward on both sides of the circular ring plate. The outer diameter of the central circular ring plate is larger than the outer diameter of the connecting sleeve 51, and the third positioning part is arranged on the support connection part 56.

[0054] In this embodiment, the support connection part 56 is a symmetrical plate structure, and the support connection part 56 is integrally provided with the end of the connection sleeve 51, and the connection sleeve 51 is connected to the support part 2 through the double-ear plate structure of the support connection part 56;

[0055] The locking part includes a plurality of locking bolt and nut assemblies 57, and the locking bolt and nut assembly 57 includes a locking bolt and locking nuts arranged at both ends of the locking bolt. Two bolt mounting holes are arranged on the ear plate structure on each side of the supporting connection part 56. The locking bolt and nut assembly 57 is installed on the supporting connection part 56 through the bolt mounting holes, and then realizes a locking connection with the supporting part 2.

[0056] In this embodiment, Figure 1 As shown, the support portion 2 is arranged on the outer peripheral side of the insertion and overlapping position of the first splicing section 31 and the second splicing section 41, and the upper end of the support portion 2 is connected to the connecting portion 5. The support portion 2 forms an effective support for the ladder, providing lateral support space for the normal use of the ladder, thereby improving the safety and stability of the ladder.

[0057] Specifically, Figure 8As shown, the support portion 2 includes a support frame 21, and the support frame 21 is a ladder-shaped support structure. A connector mounting portion 211 is provided at the upper end of the support frame 21. The connector mounting portion 211 is a U-shaped mounting groove structure. The width of the connector mounting portion 211 is adapted to the outer diameter of the first splicing section 31. The support frame 21 is sleeved on the outer peripheral side of the first splicing section 31 through the connector mounting portion 311; and a sandwich plate mounting structure adapted to be connected to the support connecting portion 56 of the connecting sleeve 51 is provided on the connector mounting portion 211. Two sandwich plate mounting structures are provided, which are respectively arranged on the connector. At the upper left and right ends of the U-shaped groove of the mounting portion 211, the sandwich plate mounting structure is a double-layer plate structure with a hollow middle part, and is provided with two bolt mounting holes arranged up and down, and the size of the bolt mounting holes matches the size of the bolt mounting holes on the support connection portion 56, so that when the support frame 21 is connected, the double-ear plate structure at the end of the connecting sleeve 51 can be respectively inserted into the sandwich plates of the two connecting piece mounting portions 211 to form a three-layer plug-in connection structure, and then the connecting sleeve 51 is fastened to the upper part of the support frame 21 by locking the bolt and nut assembly 57, and the connection is firm and reliable.

[0058] Furthermore, in the present embodiment, the support frame 21 and the connecting sleeve 51 are vertically arranged. Through the support of the ladder by the support frame 21, the ladder can be kept in contact with the vertical surface when in use, leaving space for the use of the ladder section, avoiding damage to the surface of the ladder section, maintaining the stability of the ladder in the left and right directions, and at the same time improving the convenience of storage of the ladder and reducing noise during storage.

[0059] Furthermore, as a preferred embodiment of the utility model, the specific structure of the connecting member mounting portion 211 at the upper end of the support frame 21 can be set as a closed or semi-closed open hole structure as needed, the shape of the mounting hole can be set to a circular, square or other arc-shaped structure, and whether the upper end of the support frame abuts against the ladder structure can be set as needed.

[0060] In this embodiment, by connecting the support frame 21 to the ladder sections, the sectional ladder is supported on the climbed object when in use, thereby preventing the ladder from shaking during use and improving the stability and safety of the ladder; and a triangular hollow opening structure is provided in the middle of the support frame 21, which reduces the dead weight of the support frame 21 while ensuring the utilization of materials, thereby improving the overall convenience of the ladder.

[0061] Furthermore, the bottom end of the support frame 21 is connected with a directional wheel 22, and two directional wheels 22 are provided. The directional wheels 22 can roll along the axial direction of the ladder section, so as to facilitate the movement and storage of the ladder in the use direction.

[0062] In the present invention, the specific structural setting of the support frame 21, the setting angle between the support frame 21 and the ladder section, and the number of the directional wheels 22 can be adapted and adjusted according to actual use requirements.

[0063] Furthermore, the utility model also provides a ladder, specifically a single-column segmented detachable ladder structure, including multiple ladder section columns. The multiple ladder section columns can be spliced ​​and assembled in sections, and two adjacent ladder section columns are connected by the above-mentioned splicing mechanism. While achieving a stable connection, quick disassembly and assembly can be achieved, and the operation is convenient.

[0064] In the utility model, the connecting bolts, connecting pins and other structures used for ladder connection have the performance of repeated installation and use, so that the ladder structure is simple and easy to disassemble, and can be disassembled and stored when not in use, thereby reducing the space occupied; and the front and rear ladder section columns are set with a fixed installation structure, and the top and tail connection end structures of each ladder section column are the same, so the number of ladder sections can be freely selected according to the use requirements, and the height of the ladder can be controlled, thereby reducing the difficulty of installation, simplifying the installation steps, and having high splicing flexibility. When the ladder is insufficient in length, the ladder sections can be spliced ​​and assembled at any time according to needs, and the same ladder sections can be continued to be connected to achieve the purpose of increasing the climbing height.

[0065] The utility model is simple to assemble and easy to disassemble. By using a fixed connection method and a connection structure, quick installation can be achieved, the installation procedure is standardized, the operation method is simplified, the ladder section assembly is convenient, and the assembly efficiency is high. The detachable connection of the ladder structure is achieved through the detachable connection of the first splicing part 3 and the second splicing part 4, which can reduce the occupied space when not in use, and the splicing length of the sectional ladder can be increased or decreased according to actual use needs. The ladder can be flexibly spliced ​​and assembled, and the connection is convenient and reliable. Moreover, the stable support of the ladder by the support frame 21 can prevent the ladder from shaking dangerously during use, thereby improving the safety and stability of the ladder.

[0066] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A splicing mechanism for a sectional ladder, comprising a splicing portion, through which adjacent units of the sectional ladder are connected, characterized in that: The splicing portion includes a first splicing portion and a second splicing portion, the first splicing portion and the second splicing portion are respectively arranged at the ends of the adjacent unit bodies, and the first splicing portion and the second splicing portion are detachably connected via a connecting portion; It also includes a supporting portion, an end of which is connected to the connecting portion, the supporting portion is used to support the sectional ladder, and the connecting portion includes a connecting piece.

2. A splicing mechanism for a sectional ladder according to claim 1, characterized in that: The connecting part includes a connecting piece and a fastener. The connecting piece connects the first splicing part and the second splicing part. The fastener connects and fixes the first splicing part, the second splicing part and the connecting piece.

3. A splicing mechanism for a sectional ladder according to claim 2, characterized in that: The connecting member includes a connecting sleeve, and two ends of the connecting sleeve are respectively connected to the first splicing part and the second splicing part; the fastener includes a connecting pin and a locking member, and the locking member limits the circumferential displacement of the connecting sleeve.

4. A splicing mechanism for a sectional ladder according to claim 3, characterized in that: The connecting sleeve is provided with a supporting connecting portion, and the locking piece connects the supporting connecting portion with the supporting portion.

5. A splicing mechanism for a sectional ladder according to claim 1, characterized in that: The first splicing part includes a first splicing section, which is provided with a first fixing hole; the second splicing part includes a second splicing section, which is provided with a second fixing hole, and the first splicing section and the second splicing section are both adaptably connected to the connecting part.

6. A splicing mechanism for a sectional ladder according to claim 5, characterized in that: The first splicing section is plug-connected with the second splicing section, the connecting piece is sleeved at the plug-in overlapping position of the first splicing section and the second splicing section, a third fixing hole is provided on the connecting piece, and the positions and sizes of the first fixing hole, the second fixing hole and the third fixing hole are adapted to each other.

7. A splicing mechanism for a sectional ladder according to claim 1, characterized in that: The first splicing portion is provided with a first positioning portion, the second splicing portion is provided with a second positioning portion, the connecting member is provided with a third positioning portion, and the first positioning portion and the second positioning portion are both adaptively connected to the third positioning portion.

8. A splicing mechanism for a sectional ladder according to any one of claims 1 to 7, characterized in that: The support portion includes a support frame, which is arranged at the outer peripheral side of the connecting portion and has a first end fixedly connected to the connecting portion. The support frame is arranged at an angle to the unit body.

9. A splicing mechanism for a sectional ladder according to claim 8, characterized in that: The support frame is vertically arranged to the connecting portion, and a directional wheel is connected to the second end of the support frame.

10. A ladder comprising a plurality of ladder columns, characterized in that: Two adjacent stair column sections are detachably connected via a splicing mechanism as described in any one of claims 1 to 9.

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