Intelligent multifunctional electric bamboo joint ladder

Abstract

The application discloses a kind of intelligent multifunctional electric bamboo joint ladder, belongs to the technical field of ladder.A kind of intelligent multifunctional electric bamboo joint ladder, including a pair of ladder frame, adjusting assembly and two pairs of driving mechanism, adjusting assembly is detachably installed at the top of ladder frame, a pair of ladder frame is respectively arranged in the two sides of adjusting assembly, the top of a pair of ladder frame is rotationally connected by adjusting assembly, adjusting assembly is used to realize the angle adjustment between ladder frame;The ladder frame includes a pair of telescopic ladder section and several steps, and the telescopic ladder section is fixedly connected by multiple layers of steps;The telescopic ladder section includes bottom section, at least one middle section and top section, the middle section is nested in the inside of bottom section in order of diameter from large to small, the innermost side of middle section is nested in top section, and the whole can be slid along the axial direction to complete telescopic folding;Each driving mechanism is detachably installed in the inside of bottom section, for driving middle section and top section to complete telescoping.

Description

Technical Field

[0001] This invention belongs to the field of ladder technology, and more specifically, relates to an intelligent multi-functional electric bamboo ladder. Background Technology

[0002] Bamboo ladders, also known as telescopic ladders, rely on multiple interlocking tubing sections to extend or retract in length. They are compact, portable, and widely used in renovation, repair, and outdoor work. The A-frame bamboo ladder, in particular, is constructed by hinged ends of two shorter bamboo sections. It can be unfolded for independent use as an A-frame ladder or extended to form a longer straight ladder, further increasing working height.

[0003] However, this type of ladder has inherent technical defects. The two ladder sections rely on the support of the upper hinge position to achieve separation, which leads to insufficient overall stability. For example, a bamboo ladder with a stable structure disclosed in Chinese invention patent literature (CN202022249707.X) fixes the front and rear bars by connecting the telescopic connector to the fixed structure, thereby improving the stability of the bamboo ladder body during use and preventing the bamboo ladder body from shaking. However, because the bamboo ladder is designed to meet the requirements of telescopic nesting, the diameter of the tube in a single ladder section must be thicker at the bottom and thinner at the top. The section modulus, bending resistance and instability resistance of the upper thinner diameter tube section are significantly lower than those of the lower thicker diameter tube section. Therefore, when the two ladder sections are unfolded into a straight ladder, the whole ladder becomes a bending member, and the peak bending moment occurs in the middle of the ladder length. The top thinner diameter sections of the original two ladders are exactly connected to the middle of the whole ladder, forming a force mismatch of "the peak bending moment area corresponds to the weakest section", resulting in insufficient stability of the straight ladder state.

[0004] Therefore, we need an electric bamboo ladder that is structurally stable, feature-rich, and structurally strong. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent, multifunctional electric bamboo ladder with a variety of functions. By setting a reinforcing column core, the structural strength of the two ladder sections after flipping and becoming coaxial is enhanced, thereby improving the stability of the bamboo ladder during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides an intelligent multifunctional electric bamboo ladder, comprising a pair of ladder frames, an adjustment component, and two pairs of drive mechanisms. The adjustment component is detachably installed on the top of the ladder frames. The pair of ladder frames are respectively mounted on both sides of the adjustment component, and the top ends of the pair of ladder frames are rotatably connected through the adjustment component. The adjustment component is used to realize the relative rotation between the ladder frames, thereby flexibly adjusting the angle.

[0008] The ladder frame includes a pair of telescopic ladder sections and several treads, with the pair of telescopic ladder sections fixedly connected by multiple treads.

[0009] The telescopic ladder section includes a bottom section, at least one middle section, and a top section. The middle sections are nested inside the bottom section in descending order of diameter, and the top section is nested inside the middle section. The entire structure can slide axially to complete telescopic extension and retraction.

[0010] The drive mechanisms are detachably installed inside the bottom section and are used to drive the telescopic movement of the middle and top sections.

[0011] As a further improvement of the present invention, the adjustment assembly includes two pairs of hinge plates, a pin rod, a pair of adjusting gears, a pair of transition gears, a pair of adjusting tooth plates, and a pair of reinforcing modules. One end of each hinge plate is detachably connected to the top section, and the other end is hinged to the side hinge plate via a pin rod. The pair of adjusting gears are detachably connected to the top hinge plate of one side of the ladder frame, respectively, for synchronizing the rotation of the hinge plate and the gear. A rotating rod is provided at the lower part of the hinge plate at the top of the other side of the ladder frame. The inner hole of the transition gear is rotatably connected to the outer wall of the rotating rod, and the transition gear meshes with the adjusting gear. The reinforcing module is detachably installed on the inner side of the top of the other side of the ladder frame. The adjusting tooth plate is located outside the top of the ladder frame on that side. The reinforcing module is detachably connected to the adjusting tooth plate, and the adjusting tooth plate meshes with the transition gear, for driving the rotation of the adjusting gear, thereby realizing the change of the included angle between the pair of ladder frames.

[0012] As a further improvement of the present invention, the reinforcing module includes a cylinder, a push rod, and a reinforcing core; the cylinder is detachably installed inside the top section, the cylinder output end is detachably connected to one end of the push rod, the other end of the push rod is detachably connected to the bottom of the reinforcing core, and the reinforcing core is detachably connected to the adjusting tooth plate; the reinforcing core is slidably connected to the inner wall of the top section, and is used to fill the inside of the top section after the ladder frame is flipped and aligned coaxially to form a complete ladder.

[0013] As a further improvement of the present invention, the adjusting tooth plate is provided with a locking platform on the side near the top section, and the bottom of the locking platform is detachably connected to the reinforcing column core; the side wall of the top section is provided with a sliding groove, which is used to accommodate the sliding of the connection between the two, so that the adjusting tooth plate always slides along the vertical axis of the top section.

[0014] As a further improvement of the present invention, the moving distance of the reinforcing column core inside the top section is equal to the length of the toothed section of the adjusting tooth plate. The moving process of the toothed section of the adjusting tooth plate is synchronized with the rotation process of the adjusting gear rotating half a revolution. This is used to achieve the purpose of flipping one side of the ladder frame to be coaxial with the other side of the ladder frame when the adjusting gear drives the ladder frame to rotate 180 degrees through the hinge plate.

[0015] As a further improvement of the present invention, the top of the reinforcing column is provided with an arc-shaped outer edge, which facilitates the reinforcing column of one side of the ladder to extend into the top section of the other side of the ladder.

[0016] As a further improvement of the present invention, the drive mechanism includes a motor, a driving gear, a driven rod, a driven gear, a cable, two pairs of frames, and a pair of rotating shafts. The motor is detachably mounted on the bottom inner side of the bottom section. The driving gear is detachably connected to the motor output end, and the driven gear meshes with the driving gear. A pair of rotating holes are opened in the lower part of the side wall of the bottom section, and the driven rod is rotatably mounted inside the rotating holes. The driven gear is located in the middle of the driven rod and is coaxially and detachably connected to the driven rod. One end of the cable is wound around both sides of the driven rod, and the outer side of the middle section... A pair of axially extending transmission grooves are provided on the side wall, and the other end of the cable passes upward through the transmission groove of the middle section; two pairs of the frame bodies are symmetrically arranged on both sides of the top of the bottom section, and the position of the frame body corresponds to the position of the transmission groove of the middle section. The rotating shaft is located between the pair of frame bodies and is rotatably connected to the frame body; the cable passes through the transmission groove and is wound around the rotating shaft. A pair of lifting holes are provided at the bottom of the middle section, and the cable passes through the transmission groove from top to bottom and is detachably connected to the lifting hole, which is used to drive the middle section to extend out inside the bottom section.

[0017] As a further improvement of the present invention, the top of the middle section is provided with two pairs of frame bodies and a pair of rotating shafts. The two pairs of frame bodies are symmetrically arranged on both sides of the top of the middle section. The position of the frame bodies corresponds to the position of the transmission groove of the middle section. The rotating shaft is located between the pair of frame bodies and is rotatably connected to the frame bodies. A cable is provided between the rotating shaft and the rotating shaft to transmit the rotation of the rotating shaft to the rotating shaft.

[0018] As a further improvement of the present invention, the rotating shaft 2 is also provided with a cable 3, the outer side wall of the top section is provided with a pair of transmission grooves 2 extending axially, and the bottom of the top section is provided with a pair of hoisting holes 2. One end of the cable 3 is wound around the rotating shaft 2, and the other end passes through the transmission grooves 2 from top to bottom and is detachably connected to the hoisting holes 2, for driving the top section to extend out from the inside of the middle section.

[0019] As a further improvement of the present invention, a pair of locking rods are provided on the top of the side walls of the bottom section and the middle section. The locking rods are distributed on the same vertical axis as the first and second lifting holes, respectively. The locking rods are slidably connected to the side walls of the bottom section and the middle section, respectively, and are used to slide into the bottom section and the middle section, respectively, and engage with the first and second lifting holes to lock the middle section and the top section after the bamboo ladder is extended or retracted.

[0020] Compared to existing technologies, the advantages of this invention are as follows: This intelligent multi-functional electric bamboo-joint ladder rotates by setting adjustment components at the top of a pair of ladder frames, achieving relative free rotation between the frames while enhancing the structural strength of the two ladder frames after they are flipped and coaxial. By setting a reinforcing module to synchronously drive the adjusting toothed plate in conjunction with the adjusting gear and transition gear, intelligent adjustment of the relative angle between the pair of ladder frames is achieved. Furthermore, after the two ladder frames are aligned and coaxial to form a complete ladder, a reinforcing core is filled inside the top section, compensating for the low bending and instability resistance of the thin-diameter top section. By setting a locking platform in conjunction with a sliding groove, the adjusting toothed plate always slides along the vertical axis of the top section. This design improves the stability of the sliding process. By setting the movement path of the reinforcing column core inside the top section to correspond to the path of the adjusting gear rotating halfway, the adjusting gear drives the ladder frame on that side to rotate exactly 180 degrees through the hinge plate, thereby achieving the purpose of flipping one side of the ladder frame to be coaxial with the other side. By setting an arc-shaped outer edge at the top of the reinforcing column core, it is convenient for the reinforcing column core of one side of the ladder frame to extend into the top section of the other side of the ladder frame, improving the accuracy of the docking process. By setting a drive mechanism, the force transmission between multiple sections of the bamboo ladder is realized through multiple cables and shafts, enabling a single power source to simultaneously drive multiple ladder sections to complete the extension and retraction action, reducing the number of motor components and lowering the cost of use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an intelligent multifunctional electric bamboo-joint ladder according to the present invention;

[0022] Figure 2 This is a schematic diagram of the adjustment component structure of the present invention;

[0023] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the top section of the present invention;

[0024] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the bottom section of the present invention;

[0025] Figure 5 This is an enlarged schematic diagram of the structure at point A of the present invention;

[0026] Figure 6 This is a schematic diagram of the middle section structure of the present invention;

[0027] Figure 7 This is a schematic diagram of a partial cross-sectional structure at the connection between the middle section and the top section of the present invention;

[0028] Figure 8 This is a schematic diagram of the straight-line structure of an intelligent multifunctional electric bamboo-shaped ladder according to the present invention.

[0029] Explanation of the labels in the diagram:

[0030] 1. Ladder frame, 11. Telescopic ladder section, 111. Bottom section, 1111. Rotating hole, 112. Middle section, 1121. Lifting hole one, 1122. Transmission groove one, 113. Top section, 1131. Lifting hole two, 114. Sliding groove, 115. Transmission groove two, 12. Pedal, 2. Adjustment assembly, 21. Hinge plate, 22. Pin rod, 23. Adjusting gear, 24. Transition gear, 25. Adjusting tooth plate, 251. Locking platform, 26. Reinforcing module, 261. Cylinder, 262. Push rod, 263. Reinforcing column core, 27. Rotating rod, 3. Drive mechanism, 31. Motor, 32. Drive gear, 33. Driven rod, 34. Driven gear, 35. Cable one, 36. Frame one, 37. Rotating shaft one, 4. Frame two, 5. Rotating shaft two, 51. Cable two, 52. Cable three, 6. Locking rod. Detailed Implementation

[0031] Specific Implementation Example 1: Please refer to Figures 1-8 A smart multi-functional electric bamboo ladder includes a pair of ladder frames 1, an adjustment component 2, and two pairs of drive mechanisms 3. The adjustment component 2 is detachably installed on the top of the ladder frame 1. The pair of ladder frames 1 are respectively mounted on both sides of the adjustment component 2. The top ends of the pair of ladder frames 1 are rotatably connected through the adjustment component 2. The adjustment component 2 is used to realize the relative rotation between the ladder frames 1, thereby flexibly adjusting the angle.

[0032] The ladder frame 1 includes a pair of telescopic ladder sections 11 and a plurality of treads 12, wherein the pair of telescopic ladder sections 11 are fixedly connected by multiple layers of treads 12.

[0033] The telescopic ladder section 11 includes a bottom section 111, at least one middle section 112, and a top section 113. The middle section 112 is nested inside the bottom section 111 in descending order of diameter, and the top section 113 is nested inside the middle section 112. The whole can slide along the axial direction to complete the telescopic extension and retraction.

[0034] The drive mechanism 3 is detachably installed inside the bottom section 111 and is used to drive the telescopic movement of the middle section 112 and the top section 113.

[0035] Specifically, such as Figure 2The adjustment assembly 2 shown includes two pairs of hinge plates 21, pins 22, a pair of adjusting gears 23, a pair of transition gears 24, a pair of adjusting toothed plates 25, and a pair of reinforcing modules 26. One end of each hinge plate 21 is detachably connected to the top section 113, and the other end is hinged to the side hinge plate 21 via pins 22. The pair of adjusting gears 23 are detachably connected to the top hinge plate 21 of one side of the ladder frame 1, respectively, for synchronizing the rotation of that side hinge plate 21 with the gears. The other side hinge plate 23 is connected to the top hinge plate 21 of the ladder frame 1. A rotating rod 27 is provided at the lower part of the plate 21. The inner hole of the transition gear 24 is rotatably connected to the outer wall of the rotating rod 27. The transition gear 24 meshes with the adjusting gear 23. The reinforcing module 26 is detachably installed on the inner side of the top of the other side ladder frame 1. The adjusting tooth plate 25 is located on the outer side of the top of the ladder frame 1 on this side. The reinforcing module 26 is detachably connected to the adjusting tooth plate 25. The adjusting tooth plate 25 meshes with the transition gear 24 and is used to drive the rotation of the adjusting gear 23, thereby realizing the change of the included angle between a pair of ladder frames 1.

[0036] Specifically, such as Figure 3 The reinforcing module 26 shown includes a cylinder 261, a push rod 262, and a reinforcing core 263. The cylinder 261 is detachably installed inside the top section 113. The output end of the cylinder 261 is detachably connected to one end of the push rod 262, and the other end of the push rod 262 is detachably connected to the bottom of the reinforcing core 263. The reinforcing core 263 is detachably connected to the adjusting toothed plate 25. The reinforcing core 263 is slidably connected to the inner wall of the top section 113. After the ladder frame 1 is flipped and aligned coaxially to form a complete ladder, the reinforcing core 263 fills the interior of the top section 113, compensating for the bending and instability resistance of the narrow-diameter top section 113. The drawback of low capacity: When it is necessary to open the two side ladder frames 1 to form an A-frame ladder, the control cylinder 261 pushes the reinforcing column core 263 to drive the adjusting tooth plate 25 to move upward. The adjusting tooth plate 25 drives the transition gear 24 that meshes with it to rotate around the rotating rod 27. The transition gear 24 meshes synchronously to drive the adjusting gear 23 on the hinge plate 21 to rotate, which in turn drives the hinge plate 21 to rotate around the pin rod 22, so as to realize the continuous and flexible adjustment of the opening angle of the two side ladder frames 1. After adjusting to the required A-frame ladder working angle, the cylinder 261 stops outputting and can maintain the current angle stability by relying on the self-locking characteristics of the meshing teeth.

[0037] Specifically, the adjusting toothed plate 25 is provided with a locking platform 251 on the side near the top section 113, and the bottom of the locking platform 251 is detachably connected to the reinforcing column core 263; the side wall of the top section 113 is provided with a sliding groove 114, which is used to accommodate the sliding of the connection between the two, so that the adjusting toothed plate 25 always slides along the vertical axis of the top section 113, thereby improving the stability of the sliding process.

[0038] Specifically, such as Figure 8The reinforcing core 263 shown moves a distance equal to the length of the toothed section of the adjusting toothed plate 25 inside the top section 113. The movement of the toothed section of the adjusting toothed plate 25 is synchronized with the rotation of the adjusting gear 23 by half a revolution. This is used to rotate the ladder frame 1 on one side by 180 degrees through the hinge plate 21, thereby flipping the ladder frame 1 on one side to be coaxial with the ladder frame 1 on the other side. When it is necessary to switch the bamboo ladder to a long straight ladder, the cylinder 261 continues to push the reinforcing core 263 along the top section 113. The inner wall of 13 moves upward until the adjusting gear 23 completes half a revolution under the transmission of the adjusting tooth plate 25 and the transition gear 24. At this time, one side of the ladder frame 1 is rotated 180 degrees and aligned with the other side of the ladder frame 1, forming a whole long straight ladder. At the same time, the reinforcing column cores 263 on both sides also extend into the inner cavity of the top section 113 of the opposite ladder frame 1 during the movement process, filling the originally hollow thin-diameter top section 113 into a solid load-bearing structure, which greatly improves the bending resistance and instability resistance of the middle part of the whole ladder.

[0039] Specifically, the top of the reinforcing column core 263 is provided with an arc-shaped outer edge, which facilitates the insertion of the reinforcing column core 263 of one side of the ladder frame 1 into the top section 113 of the other side of the ladder frame 1, thereby improving the accuracy of the docking process.

[0040] Specifically, such as Figure 4 The drive mechanism 3 shown includes a motor 31, a driving gear 32, a driven rod 33, a driven gear 34, a cable 35, two pairs of frames 36, and a pair of rotating shafts 37. The motor 31 is detachably mounted on the bottom inner side of the bottom section 111. The driving gear 32 is detachably connected to the output end of the motor 31, and the driven gear 34 meshes with the driving gear 32. A pair of rotating holes 1111 are opened on the lower part of the side wall of the bottom section 111, and the driven rod 33 is rotatably mounted inside the rotating holes 1111. The driven gear 34 is located in the middle of the driven rod 33 and is coaxially and detachably connected to the driven rod 33. One end of the cable 35 is wound around both sides of the driven rod 33, and a pair of axially extending transmission grooves 1122 are opened on the outer side wall of the middle section 112. The other end of the cable 35 passes upward through the transmission grooves 1122 of the middle section 112. Figure 5 The two pairs of frame bodies 36 shown are symmetrically arranged on both sides of the top of the bottom section 111. The position of the frame body 36 corresponds to the position of the transmission groove 1122 of the middle section 112. The rotating shaft 37 is located between the pair of frame bodies 36 and is rotatably connected to the frame body 36. The cable 35 passes through the transmission groove 1122 and is wound around the rotating shaft 37. The bottom of the middle section 112 is provided with a pair of lifting holes 1121. The cable 35 passes through the transmission groove 1122 from top to bottom and is detachably connected to the lifting holes 1121, which is used to drive the middle section 112 to extend out inside the bottom section 111.

[0041] Specifically, such as Figure 6The top of the middle section 112 shown has two pairs of frame bodies 4 and a pair of rotating shafts 5. The two pairs of frame bodies 4 are symmetrically arranged on both sides of the top of the middle section 112. The position of the frame bodies 4 corresponds to the position of the transmission groove 1122 of the middle section 112. The rotating shafts 5 are located between the pair of frame bodies 4 and are rotatably connected to the frame bodies 4. A cable 51 is provided between the rotating shafts 5 and the rotating shaft 37. During the rotation of the rotating shaft 37, the rotation is transmitted to the rotating shaft 5 through the cable 51, realizing the transmission of force between the multiple sections of the bamboo ladder.

[0042] Specifically, the rotating shaft 2 5 is also provided with a cable 3 52, and the outer side wall of the top section 113 is provided with a pair of axially extending transmission grooves 2 115. The bottom of the top section 113 is provided with a pair of lifting holes 2 1131. One end of the cable 3 52 is wound around the rotating shaft 2 5, and the other end passes through the transmission grooves 2 115 from top to bottom and is detachably connected to the lifting holes 2 1131, which is used to drive the top section 113 to extend out from the inside of the middle section 112.

[0043] Specifically, such as Figure 7 The bottom section 111 and the middle section 112 are each provided with a pair of locking rods 6 on the top of their side walls. The locking rods 6 are distributed on the same vertical axis as the first lifting hole 1121 and the second lifting hole 1131. The locking rods 6 are slidably connected to the side walls of the bottom section 111 and the middle section 112, respectively, and are used to slide into the bottom section 111 and the middle section 112, respectively, and engage with the first lifting hole 1121 and the second lifting hole 1131. This completes the locking of the middle section 112 and the top section 113 after the bamboo ladder is extended or retracted, thus improving the stability of the bamboo ladder during use.

[0044] During use, the motors 31 inside the bottom sections 111 on both sides are started. The motors 31 drive the driven rods 33 to wind up the cables 35 on both sides. The cables 35 pull the middle section 112 axially upward. At the same time, the shaft 37 rotates under the transmission of the cables 35, and transmits power to the shaft 5 at the top of the middle section 112 through the cable 51. The shaft 5 winds up the cable 52, which in turn pulls the top section 113 outward along the axial direction of the middle section 112. When the middle section 112 and the top section 112 are in contact, the shaft rotates. After section 113 extends to the preset length, the locking rod 6 slides into the first lifting hole 1121 and the second lifting hole 1131 respectively to lock, thus extending the bamboo ladder. When the A-frame ladder is needed for operation, the control cylinder 261 pushes the reinforcing column core 263 to move the adjusting tooth plate 25 upward. Through the meshing transmission of the adjusting tooth plate 25, the transition gear 24 and the adjusting gear 23, the ladder frames on both sides are rotated around the pin rod 22 to the required working angle. After the cylinder 261 stops outputting power, the ladder is ready to be extended. The current angle can be kept stable by relying on the self-locking characteristics of the meshing teeth, and the operator can then climb onto the step 12 to carry out the work. When it is necessary to switch to the long straight ladder mode for high-altitude work, the control cylinder 261 continues to push the reinforcing column core 263 to move upward along the top section 113 until the adjusting gear 23 drives the corresponding side ladder frame 1 to complete a 180-degree rotation, so that the two side ladder frames 1 are aligned and coaxially spliced ​​to form a complete ladder. At this time, the reinforcing column core 263 of the two side ladder frames 1 is just fully inserted into the inner cavity of the top section 113 of the opposite side ladder frame 1, filling the hollow, narrow-diameter top section 113 into a solid load-bearing structure, thus completing the structural reinforcement. When the bamboo ladder is stored, the control cylinder 261 reverses and retracts the reinforcing column core 263, and the included angle between the ladder frames 1 gradually decreases until it returns to its original position. Then, the sliding release lever 6 releases the lock on the middle section 112 and the top section 113, and the control motor 31 reverses to release the cable. The middle section 112 and the top section 113 retract into the corresponding section under the action of gravity, thus completing the overall storage.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart, multi-functional electric bamboo-joint ladder, characterized in that, It includes a pair of ladder frames (1), an adjustment component (2) and two pairs of drive mechanisms (3). The adjustment component (2) is detachably installed on the top of the ladder frame (1). The pair of ladder frames (1) are respectively mounted on both sides of the adjustment component (2). The top ends of the pair of ladder frames (1) are rotatably connected through the adjustment component (2). The adjustment component (2) is used to realize the relative rotation between the ladder frames (1). The ladder frame (1) includes a pair of telescopic ladder sections (11) and a plurality of treads (12), and the pair of telescopic ladder sections (11) are fixedly connected by multiple layers of treads (12); The telescopic ladder section (11) includes a bottom section (111), at least one middle section (112) and a top section (113). The middle section (112) is nested inside the bottom section (111) in descending order of diameter, and the top section (113) is nested inside the middle section (112). The drive mechanism (3) is detachably installed inside the bottom section (111) and is used to drive the telescopic movement of the middle section (112) and the top section (113).

2. The intelligent multi-functional electric bamboo ladder according to claim 1, characterized in that, The adjustment assembly (2) includes two pairs of hinge plates (21), a pin (22), a pair of adjusting gears (23), a pair of transition gears (24), a pair of adjusting tooth plates (25), and a pair of reinforcing modules (26). One end of the hinge plate (21) is detachably connected to the top section (113), and the other end is hinged to the side hinge plate (21) via the pin (22). The pair of adjusting gears (23) are detachably connected to the hinge plate (21) at the top of one side ladder frame (1), respectively, for connecting the side hinge plate (21) to the gears. The rotation is synchronized. A rotating rod (27) is provided at the lower part of the hinge plate (21) at the top of the other side ladder (1). The inner hole of the transition gear (24) is rotatably connected to the outer wall of the rotating rod (27). The transition gear (24) meshes with the adjusting gear (23). The reinforcing module (26) is detachably installed on the inner side of the top of the other side ladder (1). The adjusting tooth plate (25) is located outside the top of the ladder (1) on this side. The reinforcing module (26) is detachably connected to the adjusting tooth plate (25). The adjusting tooth plate (25) meshes with the transition gear (24).

3. The intelligent multi-functional electric bamboo ladder according to claim 2, characterized in that, The reinforcing module (26) includes a cylinder (261), a push rod (262), and a reinforcing core (263); the cylinder (261) is detachably installed inside the top section (113), the output end of the cylinder (261) is detachably connected to one end of the push rod (262), the other end of the push rod (262) is detachably connected to the bottom of the reinforcing core (263), and the reinforcing core (263) is detachably connected to the adjusting tooth plate (25); the reinforcing core (263) is slidably connected to the inner wall of the top section (113).

4. The intelligent multi-functional electric bamboo ladder according to claim 3, characterized in that, The adjusting toothed plate (25) is provided with a locking platform (251) on the side near the top section (113). The bottom of the locking platform (251) is detachably connected to the reinforcing core (263). The side wall of the top section (113) is provided with a sliding groove (114), which is used to accommodate the sliding of the connection between the two.

5. The intelligent multifunctional electric bamboo-joint ladder according to claim 3, characterized in that, The moving distance of the reinforcing core (263) inside the top section (113) is equal to the length of the toothed section of the adjusting toothed plate (25), and the moving process of the toothed section of the adjusting toothed plate (25) is synchronized with the moving process of the adjusting gear (23) rotating half a revolution.

6. The intelligent multi-functional electric bamboo ladder according to claim 3, characterized in that, The top of the reinforcing column (263) has an arc-shaped outer edge.

7. The intelligent multi-functional electric bamboo ladder according to claim 1, characterized in that, The drive mechanism (3) includes a motor (31), a drive gear (32), a driven rod (33), a driven gear (34), a cable (35), two pairs of frames (36), and a pair of rotating shafts (37). The motor (31) is detachably installed on the bottom inner side of the bottom section (111). The drive gear (32) is detachably connected to the output end of the motor (31), and the driven gear (34) meshes with the drive gear (32). A pair of rotating holes (1111) are opened on the lower part of the side wall of the bottom section (111), and the driven rod (33) is rotatably installed inside the rotating holes (1111). The driven gear (34) is located in the middle of the driven rod (33) and is detachably connected to the driven rod (33) on the same axis. A pair of axially extending transmission grooves (1122) are opened on the outer side wall of the middle section (112), and the cable (35) One end of the cable (35) is wound around both sides of the driven rod (33), and the other end of the cable (35) passes upward through the transmission groove (1122) of the middle section (112); two pairs of the frame bodies (36) are symmetrically arranged on both sides of the top of the bottom section (111), the position of the frame body (36) corresponds to the position of the transmission groove (1122), and the rotating shaft (37) is located between a pair of frame bodies (36) and is rotatably connected to the frame body (36); the cable (35) passes through the transmission groove (1122) and is wound around the rotating shaft (37); the bottom of the middle section (112) is provided with a pair of lifting holes (1121), and the cable (35) passes through the transmission groove (1122) from top to bottom and is detachably connected to the lifting holes (1121) to drive the middle section (112) to extend out inside the bottom section (111).

8. The intelligent multi-functional electric bamboo ladder according to claim 7, characterized in that, The top of the middle section (112) is provided with two pairs of frame bodies (4) and a pair of rotating shafts (5). The two pairs of frame bodies (4) are symmetrically arranged on both sides of the top of the middle section (112). The position of the frame bodies (4) corresponds to the position of the transmission groove (1122) of the middle section (112). The rotating shafts (5) are located between the pair of frame bodies (4) and are rotatably connected to the frame bodies (4). A cable (51) is provided between the rotating shafts (5) and the rotating shafts (37) to transmit the rotation of the rotating shafts (37) to the rotating shafts (5).

9. The intelligent multi-functional electric bamboo ladder according to claim 8, characterized in that, The rotating shaft 2 (5) is also provided with cable 3 (52), and a pair of axially extending transmission grooves 2 (115) are provided on the outer side wall of the top section (113). A pair of lifting holes 2 (1131) are provided at the bottom of the top section (113). One end of the cable 3 (52) is wound around the rotating shaft 2 (5), and the other end passes through the transmission grooves 2 (115) from top to bottom and is detachably connected to the lifting holes 2 (1131).

10. The intelligent multifunctional electric bamboo ladder according to claim 9, characterized in that, The bottom section (111) and the middle section (112) are each provided with a pair of locking rods (6) on the top of their side walls. The locking rods (6) are distributed on the same vertical axis as the first lifting hole (1121) and the second lifting hole (1131). The locking rods (6) are slidably connected to the side walls of the bottom section (111) and the middle section (112) respectively, and are used to slide into the bottom section (111) and the middle section (112) respectively, and engage with the first lifting hole (1121) and the second lifting hole (1131) to lock the middle section (112) and the top section (113) after the bamboo ladder is extended and retracted.

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