Intelligent electric bamboo joint ladder

Abstract

An intelligent electric bamboo joint ladder comprises a bamboo joint ladder body, the bamboo joint ladder body comprises a ladder pipe, and the ladder pipe comprises a plurality of joint pipes. And the top of the inner side wall of the section pipe is provided with an inner convex edge. And outer convex edges are arranged at the bottoms of the outer side walls of the section pipes. And two fixing strips are fixed on the inner bottom walls of the ladder pipes. A driving gear, two transmission wheels and two turning wheel sets are rotationally connected between the two fixing strips. And a transmission belt is in transmission connection between the two transmission wheels. A tooth-shaped structure is arranged on the outer side face of the transmission belt. And the driving gear is meshed with the tooth-shaped structure. And one side of the transmission belt is divided into an upper part which is relatively convex outwards and a lower part which is relatively concave inwards by the two turning wheel groups. The turning wheel set comprises a turning guide wheel and a turning gear. A sliding block is fixed to the bottom end of the section pipe, and a through hole is formed in the sliding block. A rack structure is arranged on the hole wall of one side of the through hole. The bamboo joint ladder body can automatically stretch out and draw back, the stretching process is more time-saving and labor-saving, and the contracting process is safer.

Description

Technical Field

[0001] The present invention relates to the technical field of ladders, in particular to an intelligent electric bamboo ladder. Background Art

[0002] The bamboo ladder is a ladder that can be extended and shortened like a fishing rod. It is very convenient to carry and store, and can be placed in a closet at home, in a study, under a bed or in the trunk of a car.

[0003] Bamboo ladders in the prior art generally include two symmetrically arranged ladder tubes and a number of steps arranged between the two ladder tubes. Both ladder tubes are formed by a plurality of thin-at-the-top and thick-at-the-bottom joint tubes that are sequentially nested. The steps are connected between the top ends of the two symmetrical joint tubes and each step is provided with a locking structure for fixing the upper joint tube. The locking structure includes a latch and a button. The latch is inserted through the corresponding connection hole between two adjacent joint tubes to fix the two adjacent joint tubes. Pressing the button retracts the latch, thereby releasing the connection between the two adjacent joint tubes.

[0004] When unfolding for use, it is mostly necessary to manually unfold it step by step, and the unfolding process is time-consuming and labor-intensive; and when it needs to be retracted, after pressing the button, the bamboo ladder descends at a high speed, which can easily cause accidents such as pinching hands.

[0005] Therefore, the present invention proposes a technical solution to solve the problem that the unfolding process of the bamboo ladder is time-consuming and labor-intensive, and the retraction process is prone to accidents such as pinching hands due to the excessively fast descending speed. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an intelligent electric bamboo ladder, which aims to achieve the technical effect of automatically retracting the bamboo ladder body, making the deployment process more time-saving and labor-saving, and the contraction process safer.

[0007] An intelligent electric bamboo ladder comprises a bamboo ladder body, wherein the bamboo ladder body comprises two symmetrically arranged ladder tubes and a plurality of pedals arranged between the two ladder tubes, wherein the two ladder tubes are formed by a plurality of thin-at-top-and-thick-at-bottom joint tubes being sequentially sleeved together, and corresponding connecting holes are provided between two adjacent joint tubes, and the plurality of pedals are respectively connected between the top ends of the two symmetrical joint tubes, and each of the pedals is provided with a locking structure for fixing the upper-level joint tube, the locking structure comprising a latch and a button, the top of the inner side wall of the joint tube is provided with an inner ridge, and the joint tube is provided with a plurality of thin-at-top-and-thick-at-bottom joint tubes. The bottom of the outer wall of the tube is provided with an outer ridge, and two fixed bars arranged at intervals are fixed on the inner bottom wall of the ladder tube. The two fixed bars extend vertically upward, and a driving gear, two transmission wheels and two sets of direction-changing wheel groups are rotatably connected therebetween. The two transmission wheels are symmetrically arranged up and down, and a transmission belt is connected therebetween. A toothed structure is provided on the outer side of the transmission belt. The driving gear is located directly below the two transmission wheels and meshes with the toothed structure. The transmission belt passes between the two sets of direction-changing wheel groups, and the upper portion of the transmission belt The part between the two sets of changing wheel groups is recessed inwardly, and the two sets of changing wheel groups divide one side of the transmission belt into a relatively convex upper part and a relatively concave lower part. The changing wheel group includes a changing guide wheel and a changing gear. The changing guide wheel is attached to the inner side of the transmission belt, and the changing gear is attached to the outer side of the transmission belt and meshes with the toothed structure. A sliding block is fixed to the bottom end of the node tube, and a through hole is opened on the sliding block. The sliding block is slidably sleeved on the outside of the two fixing bars through the through hole, and the through hole corresponds to a hole on one side of the two sets of changing wheel groups. A rack structure meshing with the toothed structure is provided on the wall. When the bamboo ladder body is in a fully expanded state, the sliding block at the bottom is sleeved on the outside of the transmission belt and corresponds to the upper part, and the remaining sliding blocks are all located above the transmission belt. When the bamboo ladder body is in a fully retracted state, all sliding blocks are sleeved on the outside of the transmission belt, and the sliding block at the top corresponds to the upper part, and the remaining sliding blocks correspond to the lower part. A motor for driving the drive gear to rotate and a mobile power supply for providing electrical energy to the motor are installed on the outer wall of the ladder tube.

[0008] By adopting the above technical solution, when the ladder is fully retracted and needs to be unfolded, the motor is started. The motor's output shaft rotates, driving the drive gear. The drive gear, through a toothed structure, drives a transmission belt between two transmission wheels. The side of the transmission belt corresponding to the two sets of direction-changing wheels moves upward, while the other side moves downward. Because the rack structure on the topmost sliding block engages with the toothed structure above, the topmost sliding block moves upward under the action of the transmission belt. The remaining sliding blocks, however, do not move upward because their rack structures, corresponding to the lower sections, do not engage with the toothed structure below. The upward movement of the topmost sliding block drives the topmost section tube and pedal upward. When the outer ridge on this section tube contacts the inner ridge on the next section tube, this section tube cannot move upward relative to the next section tube, but instead pulls the next section tube upward simultaneously. Furthermore, at this point, the connecting holes between the two section tubes align perfectly. The next tube moves upward, driving the pedal above it upward. The button on the pedal is no longer pressed, and the latch pops out, securing the two tubes together. As the topmost sliding block continues to move upward, it eventually disengages from the transmission belt. At this point, the lower sliding block is pulled upward to the position corresponding to the upper portion, and the transmission belt drives this sliding block upward again. At this point, this sliding block drives the tube and pedal above it upward, simultaneously pushing the upper tube upward. This cycle repeats until the bamboo ladder body is unfolded. At this point, the bottom sliding block is positioned outside the transmission belt and corresponds to the upper portion, while the remaining sliding blocks are located above the transmission belt.

[0009] Similarly, when the ladder is fully extended and needs to be retracted, the bottom button is pressed, which then activates the motor. The motor's output shaft rotates in the opposite direction, driving the drive gear in the opposite direction. The drive gear, through a toothed structure, drives a transmission belt between two drive wheels. The side of the transmission belt corresponding to the two sets of directional wheels moves downward, while the other side moves upward. Because the rack structure on the bottom slider engages the toothed structure above, the bottom slider moves downward under the drive belt. This slider drives the tubes to which it is attached downward. Since the tubes are now securely connected by latches, all tubes can move downward. As each tube descends, the steps stack up one after another, the latches between the tubes retract, and each slider is placed on the transmission belt. The previously placed sliders continue to descend to the lower part of the belt. When the ladder is fully retracted, only the top slider corresponds to the upper section, while the remaining sliders correspond to the lower section.

[0010] The present invention can automatically extend and retract the bamboo ladder body, so that the unfolding process is more time-saving and labor-saving, and the retracting process is safer.

[0011] A further configuration of the present invention is that a reinforcement rod located below the pedal is fixedly connected between the two ladder pipes, the motor and mobile power supply are both installed below the fixed rod, and a switch for controlling the start and stop of the motor and the direction of rotation is provided on the fixed rod.

[0012] By adopting the above technical solution, the provision of the reinforcement rod improves the stability of the bamboo ladder body.

[0013] A further configuration of the present invention is that the reinforcement rod is also provided with a display screen for displaying the remaining power of the mobile power supply.

[0014] By adopting the above technical solution, the setting of the display screen can serve to remind users to charge the mobile power supply.

[0015] A further configuration of the present invention is that a voice control module is also provided on the reinforcement rod for controlling the start and stop and the rotation direction of the motor.

[0016] By adopting the above technical solution, the raising and lowering of the bamboo ladder body can be realized by voice control operation through the voice control module.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The invention discloses an intelligent electric bamboo ladder. The bamboo ladder body can be automatically extended and retracted, so that the unfolding process is more time-saving and labor-saving, and the retraction process is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an intelligent electric bamboo ladder of the present invention;

[0020] Figure 2 This is a cross-sectional view of an intelligent electric bamboo ladder according to the present invention in the main viewing direction;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0024] Figure 6 A cross-sectional view of the driving gear, transmission wheel, direction-changing wheel set and transmission belt of an intelligent electric bamboo ladder of the present invention;

[0025] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0026] Figure 8 for Figure 6 Enlarged view of point E in the middle;

[0027] Figure 9 for Figure 6 Enlarged view of point F in the middle.

[0028] Figure numerals: 1. pedal; 2. joint tube; 3. inner ridge; 4. outer ridge; 5. fixing bar; 6. driving gear; 7. transmission wheel; 8. transmission belt; 9. tooth structure; 10. direction-changing guide wheel; 11. direction-changing gear; 12. sliding block; 13. through hole; 14. rack structure; 15. motor; 16. mobile power supply; 17. reinforcement rod; 18. switch; 19. display screen. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] An intelligent electric bamboo ladder, such as Figures 1-9 As shown, it includes a bamboo ladder body. The bamboo ladder body includes two symmetrically arranged ladder tubes and a plurality of pedals 1 arranged between the two ladder tubes. Both ladder tubes are formed by a plurality of thin-at-top and thick-at-bottom segment tubes 2 that are fitted in sequence. Corresponding connecting holes are provided between two adjacent segment tubes 2. A plurality of pedals 1 are respectively connected between the top ends of the two symmetrical segment tubes 2, and a locking structure for fixing the segment tube 2 of the upper level is provided therein. The locking structure includes a latch and a button. The above structure is a mature prior art and will not be described in detail here. In this embodiment, reference may be made to the corresponding structure in the Chinese patent application No. CN203161060U for a telescopic ladder or the Chinese patent application No. CN201502312U for an improved telescopic ladder with stable contraction.

[0031] The top of the inner side wall of the joint tube 2 is provided with an inner ridge 3. The bottom of the outer side wall of the joint tube 2 is provided with an outer ridge 4.

[0032] Two spaced apart fixing bars 5 are fixed on the inner bottom wall of the ladder tube. The two fixing bars 5 extend vertically upwards and are rotatably connected with a driving gear 6, two transmission wheels 7 and two sets of direction-changing wheel groups.

[0033] The two transmission wheels 7 are symmetrically arranged up and down, and a transmission belt 8 is connected therebetween. A toothed structure 9 is provided on the outer side of the transmission belt 8.

[0034] The driving gear 6 is located directly below the two transmission wheels 7 and meshes with the toothed structure 9 .

[0035] The transmission belt 8 passes between the two groups of the changing wheel sets, and the part between the two groups of the changing wheel sets on the transmission belt 8 is recessed inwards. The two groups of the changing wheel sets divide one side of the transmission belt 8 into a relatively convex top and a relatively concave bottom.

[0036] The direction-changing wheel group includes a direction-changing guide wheel 10 and a direction-changing gear 11. The direction-changing guide wheel 10 is attached to the inner side of the transmission belt 8. The direction-changing gear 11 is attached to the outer side of the transmission belt 8 and meshes with the toothed structure 9.

[0037] A sliding block 12 is fixed to the bottom end of the joint tube 2. A through-hole 13 is defined in sliding block 12. Sliding block 12 slides through through-hole 13 and is slidably mounted on the exterior of the two fixed bars 5. A rack structure 14 is provided on the wall of through-hole 13 on the side corresponding to the two sets of direction-changing pulleys (i.e., the side of the drive belt 8 that is divided into the upper and lower parts), and meshes with the toothed structure 9.

[0038] When the bamboo ladder body is in a fully extended state, the sliding block 12 at the bottom is sleeved on the outside of the transmission belt 8 and corresponds to the upper part, and the remaining sliding blocks 12 are all located above the transmission belt 8.

[0039] When the bamboo ladder body is in a fully retracted state, all the sliding blocks 12 are sleeved on the outside of the transmission belt 8, and the sliding block 12 located at the top corresponds to the upper part, and the other sliding blocks 12 correspond to the lower part.

[0040] A motor 15 for driving the driving gear 6 to rotate and a mobile power supply 16 for providing electric energy to the motor 15 are installed on the outer side wall of the ladder tube.

[0041] A reinforcing rod 17 is fixedly connected between the two ladder tubes and is located below the step 1. The motor 15 and the mobile power supply 16 are both installed below the fixed rod. The fixed rod is provided with a switch 18 for controlling the start and stop and rotation direction of the motor 15. The setting of the reinforcing rod 17 improves the stability of the bamboo ladder body.

[0042] A display screen 19 for displaying the remaining power of the mobile power supply 16 is also provided on the reinforcement bar 17. The setting of the display screen 19 can serve to remind the user to charge the mobile power supply 16.

[0043] The reinforcement rod 17 is also provided with a voice control module for controlling the start and stop and the rotation direction of the motor 15. The voice control module can realize the lifting and lowering of the bamboo ladder body by voice control.

[0044] Working principle:

[0045] When the ladder is in a fully retracted state and needs to be unfolded, the motor 15 is started. The output shaft of the motor 15 rotates to drive the drive gear 6. The drive gear 6 drives the transmission belt 8 to transmit between the two transmission wheels 7 through the tooth structure 9. One side of the transmission belt 8 corresponding to the two sets of change-of-direction wheel groups (that is, the side divided into the upper and lower parts on the transmission belt 8) moves upward, and the other side moves downward. Since the rack structure 14 on the uppermost sliding block 12 is engaged with the tooth structure 9 on the upper part, the sliding block 12 at the top moves upward under the action of the transmission belt 8. Since the rack structure 14 on the remaining sliding blocks 12 corresponds to the lower part, it does not engage with the tooth structure 9 on the lower part. Therefore, the remaining sliding blocks 12 do not move upward. The upward movement of the sliding block 12 at the top drives the joint pipe 2 and pedal 1 at the top to move upward. When the outer ridge 4 on the topmost tube 2 contacts the inner ridge 3 on the next tube 2, the topmost tube 2 cannot move upward relative to the next tube 2, but instead pulls the next tube 2 upward at the same time. Moreover, at this time, the connecting holes between the two tubes 2 just correspond. The next tube 2 moves upward, driving the pedal 1 on it upward. The button on the pedal 1 is no longer pressed, and the latch pops out, thereby fixing the two tubes 2. As the sliding block 12 at the top continues to move upward, it eventually disengages from the transmission belt 8. At this time, the sliding block 12 at the bottom is just pulled upward to the corresponding upper position, and the transmission of the transmission belt 8 drives the sliding block 12 upward again. At this time, the sliding block 12 drives the tube 2 and pedal 1 on it upward, while also pushing the previous tube 2 upward. In this way, the cycle is repeated, and the bamboo ladder body can be unfolded. When the bamboo ladder body is fully unfolded, the lowest sliding block 12 is sleeved on the outside of the transmission belt 8 and corresponds to the upper part, and the remaining sliding blocks 12 are all located above the transmission belt 8.

[0046] Similarly, when the ladder is in a fully extended state and needs to be retracted, first press the button at the bottom and then start the motor 15. The output shaft of the motor 15 rotates in the opposite direction to drive the drive gear 6 to rotate in the opposite direction. The drive gear 6 drives the transmission belt 8 to transmit between the two transmission wheels 7 through the tooth structure 9. One side of the transmission belt 8 corresponding to the two sets of changing wheel groups (that is, the side divided into the upper and lower parts of the transmission belt 8) moves downward, and the other side moves upward. Since the rack structure 14 on the sliding block 12 at the bottom is engaged with the tooth structure 9 at the upper part, the sliding block 12 at the bottom moves downward under the action of the transmission belt 8. The sliding block 12 drives the section tube 2 fixed thereto to move downward, and since at this time, each section tube 2 is fixedly connected by a pin, all section tubes 2 can move downward. As the sections 2 descend, the steps 1 are stacked one on top of the other, the latches between the sections 2 retract, and the sliding blocks 12 are placed on the transmission belt 8. The sliding blocks 12 previously placed on the transmission belt 8 continue to descend to the lower part of the transmission belt 8 until the bamboo ladder body is completely retracted, with only the topmost sliding block 12 corresponding to the upper part and the remaining sliding blocks 12 corresponding to the lower part.

[0047] The present invention can automatically extend and retract the bamboo ladder body, so that the unfolding process is more time-saving and labor-saving, and the retracting process is safer.

[0048] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An intelligent electric bamboo ladder, comprising a bamboo ladder body, wherein the bamboo ladder body comprises two symmetrically arranged ladder tubes and a plurality of pedals (1) arranged between the two ladder tubes, wherein the two ladder tubes are formed by sequentially fitting a plurality of thin-top and thick-bottom segment tubes (2), and corresponding connecting holes are provided between two adjacent segment tubes (2), and the plurality of pedals (1) are respectively connected between the top ends of the two symmetrical segment tubes (2), and a locking structure for fixing the segment tube (2) of the upper level is provided therein, wherein the locking structure comprises a latch and a button, and wherein: The top of the inner side wall of the section tube (2) is provided with an inner ridge (3), the bottom of the outer side wall of the section tube (2) is provided with an outer ridge (4), and two spaced fixing bars (5) are fixed on the inner bottom wall of the ladder tube. The two fixing bars (5) extend vertically upward, and a driving gear (6), two transmission wheels (7) and two sets of direction-changing wheel groups are rotatably connected between them. The two transmission wheels (7) are symmetrically arranged up and down, and a transmission belt (8) is connected between them for transmission. The outer surface of the transmission belt (8) is provided with a toothed The structure (9) is characterized in that the driving gear (6) is located directly below the two transmission wheels (7) and meshes with the toothed structure (9). The transmission belt (8) passes between the two sets of direction-changing wheel groups, and the portion of the transmission belt (8) located between the two sets of direction-changing wheel groups is recessed inward. The two sets of direction-changing wheel groups divide one side of the transmission belt (8) into a relatively convex upper portion and a relatively concave lower portion. The direction-changing wheel group includes a direction-changing guide wheel (10) and a direction-changing gear (11). The direction-changing guide wheel (10) is attached to the inner side of the transmission belt (8). The gear (11) is attached to the outside of the transmission belt (8) and meshed with the toothed structure (9). A sliding block (12) is fixed to the bottom end of the section tube (2). A through hole (13) is provided on the sliding block (12). The sliding block (12) is slidably sleeved on the outside of the two fixed bars (5) through the through hole (13). A rack structure (14) meshed with the toothed structure (9) is provided on the side wall of the through hole (13) corresponding to the two sets of direction-changing wheel groups. When the bamboo ladder body is in a fully expanded state, the sliding block at the bottom The block (12) is sleeved on the outside of the transmission belt (8) and corresponds to the upper part, and the remaining sliding blocks (12) are all located above the transmission belt (8). When the bamboo ladder body is in a fully retracted state, all the sliding blocks (12) are sleeved on the outside of the transmission belt (8), and the sliding block (12) located at the top corresponds to the upper part, and the remaining sliding blocks (12) correspond to the lower part. A motor (15) for driving the driving gear (6) to rotate and a mobile power supply (16) for providing electric energy to the motor (15) are installed on the outer wall of the ladder tube.

2. The intelligent electric bamboo ladder according to claim 1, characterized in that: A reinforcing rod (17) located below the pedal (1) is fixedly connected between the two ladder pipes. The motor (15) and the mobile power supply (16) are both installed below the fixed rod. A switch (18) for controlling the start and stop of the motor (15) and the direction of rotation is provided on the fixed rod.

3. The intelligent electric bamboo ladder according to claim 1, characterized in that: The reinforcing rod (17) is also provided with a display screen (19) for displaying the remaining power of the mobile power source (16).

4. The intelligent electric bamboo ladder according to claim 1, characterized in that: The reinforcement rod (17) is also provided with a voice control module for controlling the start and stop and the rotation direction of the motor (15).

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