Climbing ladder for children

Abstract

An infant climbing ladder comprises a front supporting leg, a rear supporting leg, an upper supporting rod, a standing plate and a surrounding frame, and the two upper ends of the rear supporting leg are rotationally connected with the upper portions of the corresponding sides of the front supporting leg respectively; the two lower end parts of the upper supporting rod are fixedly or detachably connected with the upper parts of the corresponding sides of the front supporting legs respectively; the standing plate is installed between the front supporting leg and the rear supporting leg, the front side portion of the standing plate is detachably connected with the front supporting leg through a platform lock mechanism, and the rear side portion of the standing plate is in pivot connection with the rear supporting leg; the surrounding frame is arranged on the upper supporting rod in an angle adjusting mode through the angle adjusting mechanism, and when the angle adjusting mechanism locks the surrounding frame to the first working position extending forwards, the surrounding frame can play a role in holding and protecting a child standing on the standing plate, so that the child can conveniently take articles and the like towards a higher position, and the child is also helped to expand to the outside in life. When not in use, the children climbing ladder can be folded to reduce the volume, so that the children climbing ladder is convenient to fold, space is saved, and the overall structure is simple.

Description

Technical Field

[0001] The utility model relates to a climbing ladder for children. Background Art

[0002] Most of the children's climbing ladders in the prior art are climbing ladders for outdoor public use and playing. They are large in size and not suitable for home use. Therefore, it is necessary to design a children's climbing ladder that is smaller in size and suitable for use by young children at home, which is convenient for young children to climb up and take objects, and can be folded and stored when not in use. It is crucial. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a climbing ladder for children.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a kind of toddler climbing ladder, comprising: a front supporting leg; a rear supporting leg, wherein the two upper ends of the rear supporting leg are respectively rotatably connected to the upper parts of the corresponding sides of the front supporting leg; an upper support frame, comprising two left and right upper support rods, the two upper ends of the front supporting leg are respectively extended upward to form two upper support rods, or the lower parts of the upper support rods are fixedly connected or detachably connected to the upper parts of the front supporting legs; a standing board, wherein the standing board is installed between the front supporting leg and the rear supporting leg, one of the front side part and the rear side part of the standing board is detachably connected to the corresponding supporting leg through a platform locking mechanism, and the other of the front side part and the rear side part of the standing board is pivotally connected to the corresponding supporting leg; a surrounding frame, wherein the surrounding frame is arranged on the upper support frame in an angle-adjustable manner and is locked in at least a first working position by an angle adjustment mechanism, and when the surrounding frame is in the first working position, the standing board forms a standing platform for the child to stand, and the surrounding frame is located above the standing board to form a device for protecting the child's waist.

[0005] In some embodiments, the platform locking mechanism includes a mounting bracket fixedly mounted on vertical rods on both sides of the front supporting legs, the mounting bracket includes a platform body protruding toward the middle along the left-right direction, and both sides of the standing board have upper grooves that are buckled on the platform body. When the standing board is installed on the front supporting legs, the left and right side portions of the front of the standing board are respectively buckled on the platform body, and the two platform bodies are respectively located in the corresponding upper grooves.

[0006] In some embodiments, the platform locking mechanism also includes sliding spring pins arranged on the left and right sides of the front of the standing board, and a spring pin locking hole is respectively opened on the mounting bracket on each side. When the standing board is installed on the front supporting leg, each sliding spring pin is inserted into the corresponding side spring pin locking hole, and a lower knob is also provided on the bottom of the front side of the standing board to slide back and forth. Traction ropes are respectively provided between the lower knob and the sliding spring pins on both sides. By pressing the lower knob, the sliding spring pins on both sides can be dragged inward, thereby disengaging from the spring pin locking holes, and the standing board can be lifted upward, and the front supporting legs and the rear supporting legs can be folded together front and back.

[0007] In certain embodiments, the platform lock mechanism further includes a second lock button rotatably or slidably disposed at the front edge of the standing board, and an intermediate slide rotatably or slidably disposed in the standing board and inserted with the lower knob to prevent the lower knob from sliding and unlocking; pressing the second lock button drives the intermediate slide to deviate from the lower knob, thereby allowing the lower knob to slide and unlock.

[0008] In certain embodiments, at least one ladder pedal is mounted on the front supporting leg and / or the rear supporting leg, and the at least one ladder pedal is located at a lower side of the standing board.

[0009] In some embodiments, the front supporting leg and the rear supporting leg are respectively composed of an upper insert tube and a lower U tube inserted and assembled together. The upper insert tube and the lower U tube are positioned by a sliding spring pin. There are sleeves on both sides of the ladder pedal, which are respectively mounted on the corresponding pipe fittings of the corresponding front supporting leg and / or the rear supporting leg, and are positioned and fixed by the pedal spring pin.

[0010] In some embodiments, the frame can also be locked in a second working position through an angle adjustment mechanism. When the frame is in the second working position, the front portion of the frame is tilted downward.

[0011] In some embodiments, the frame is a U-shaped rod, and the two upper support rods and the upper support cross rod integrally formed between the upper ends constitute the U-shaped upper support frame, the lower ends of the two upper support rods are respectively fixedly connected to the corresponding side upper ends of the front support legs, and the upper parts of the two upper support rods are respectively fixed with angle adjustment seats, and the two ends of the frame are respectively pivotally connected to the corresponding angle adjustment seats and locked by the angle adjustment mechanism.

[0012] In some embodiments, when the enclosure is in the first working position, the rear portion of the enclosure is based on the upper support rod, and the front portion is extended forward.

[0013] The scope of the present utility model is not limited to the technical solutions formed by the specific combination of the above technical features, but also includes other technical solutions formed by any combination of the above technical features or their equivalent features. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: the utility model provides a climbing ladder for children, the front supporting legs, the rear supporting legs and the standing board are locked by the platform locking mechanism to form a triangular mechanism, which is stable in the unfolded position, and when the angle adjustment mechanism locks the frame in the first working position set to extend forward, the frame can serve as a handrail and a protective enclosure for the children standing on the standing board, making it convenient for the children to take items from a higher place, etc., and also helping the children to expand their behavior to the outside world in life. When not in use, the climbing ladder for children can be folded to reduce the volume by unlocking the angle adjustment mechanism and the platform locking mechanism, which is convenient for folding and saving space, and the overall structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 This is a schematic diagram of the utility model of a toddler climbing ladder in an unfolded state;

[0016] Attached Figure 2 This is a schematic diagram of the utility model of a children's climbing ladder frame in a folded state;

[0017] Attached Figure 3 This is a schematic diagram of the utility model of a toddler climbing ladder in a folded state;

[0018] Attached Figure 4 It is an exploded schematic diagram of the angle adjustment mechanism between the enclosure and the upper support rod;

[0019] Attached Figure 5 This is an exploded diagram of the utility model of a children's climbing ladder;

[0020] Attached Figure 6 It is a schematic diagram of installing a seat in a folded state of the climbing ladder frame for infants of the utility model;

[0021] Among them: 11, front support leg; 12, rear support leg; 13, standing board; 14, ladder pedal; 15a, upper support cross bar; 15b, upper support bar; 16, angle adjustment seat; 17, frame; 2, angle adjustment mechanism; 3, platform locking mechanism; 31, mounting bracket; 31a, support platform body; 31b, spring pin locking hole; 32, upper groove; 33, sliding spring pin; 34, lower knob; 35, second lock button. DETAILED DESCRIPTION

[0022] A climbing ladder for children as shown in the accompanying drawings comprises:

[0023] A U-shaped front support leg 11;

[0024] The upper support frame is in an inverted U shape, including two upper support rods 15b on the left and right, and an upper support cross bar 15a integrally formed and fixed between the tops of the two upper support rods 15b. The two lower ends of the upper support rod 15b are respectively inserted into the corresponding upper ends of the front support legs 11 and are fixedly connected by screws or disassembled by elastic pins, so that the front support legs 11 and the upper support rods 15b form a closed circle during use, which has good rigidity. When it needs to be packaged for transportation, it can also be disassembled to reduce the overall height and volume;

[0025] A U-shaped rear support leg 12, the two upper ends of which are respectively connected to the upper portions of the corresponding sides of the front support leg 11 around an axis extending left and right and pivotally connected;

[0026] The standing board 13 is installed between the front supporting leg 11 and the rear supporting leg 12. The front side of the standing board 13 is detachably connected to the front supporting leg 11 through the platform lock mechanism 3, and the rear side of the standing board 13 is rotatably connected to the rear supporting leg 12 around an axis extending left and right;

[0027] The U-shaped frame 17 is arranged on the upper support rod 15b and can be adjusted in angle by an angle adjustment mechanism 2. The angle adjustment mechanism 2 can lock the frame 17 in a first working position in which the front part of the frame 17 is extended forward, and a second working position in which the front part of the frame 17 is tilted downward.

[0028] The front support legs 11, the rear support legs 12 and the standing board 13 are locked by the platform lock mechanism 3 to form a triangular structure, which is stable in the unfolded position. The surrounding frame 17 is locked in the first working position extending forward, and the surrounding frame 17 can play a handholding and enclosure role for children standing on the standing board.

[0029] The climbing ladder also includes a pedal assembly, which is located at the lower side of the standing board 13, so that children can step on it and step onto the standing board 13. The pedal assembly can be a pedal step placed at the bottom of the front supporting leg 11 and can be used alone. The pedal assembly in this embodiment is a ladder pedal 14 fixedly mounted on the front supporting leg 11.

[0030] In this embodiment, the front supporting leg 11 and the rear supporting leg 12 are both U-shaped, but an H-shape is also acceptable as long as the rigidity in the left-right direction can be guaranteed.

[0031] As attached Figure 2 , 3As shown in Figure 5, the platform locking mechanism 3 includes a mounting bracket 31 fixedly arranged on the vertical rods on both sides of the front supporting leg 11, the mounting bracket 31 includes a support body 31a protruding toward the middle along the left and right directions, and the two sides of the standing board 13 respectively have upper grooves 32 buckled on the support body 31a, and also include sliding elastic pins 33 arranged on the left and right sides of the front part of the standing board 13, and elastic pin locking holes 31b opened on each side of the mounting bracket 31. When the standing board 13 is installed on the front supporting leg 11, the left and right sides of the front part of the standing board 13 are respectively buckled on the support body 31a, and the two support bodies 31a are respectively located in the corresponding upper grooves 32, and each sliding elastic pin 33 is inserted in the corresponding side elastic pin locking hole 31b.

[0032] The platform lock mechanism 3 also includes two lock buttons that slide forward and backward at the front edge of the station board 13, a lower knob 34 that slides forward and backward at the bottom of the front side of the station board 13, and an elastic intermediate slide that rotates or slides in the station board 13 and cooperates with the two lock buttons and the lower knob 34, respectively. A traction rope is respectively arranged between the lower knob 34 and the sliding elastic pins 33 on both sides. Under the action of elasticity, the intermediate slide is normally engaged with the lower knob 34, thereby preventing the lower knob 34 from sliding, and the lower knob 34 cannot be pinched, that is, the traction rope and the sliding elastic pin 33 cannot be controlled to move, and unlocking cannot be achieved. This allows the station board 13 to stably maintain a locked position, stably unfold, and be safe to use. When it is necessary to unlock the platform lock mechanism 3, the second lock button is pressed first. The second lock button drives the middle slide to move and deviate from the lower handle 34 through the slide, that is, the middle slide is disengaged from the lower handle 34. At this time, the lower handle 34 can be pressed. The lower handle 34 drags the sliding spring pins 33 on both sides to retract through the traction rope, thereby disengaging from the spring pin lock hole 31b, and the standing board 13 can be lifted up, and the front supporting leg 11 and the rear supporting leg 12 can be folded together front and back to reduce the volume front and back.

[0033] In this embodiment, in order to reduce the packaging volume and transportation cost, the front support leg 11 and the rear support leg 12 are respectively made into an assembled type, and are respectively composed of an upper insert tube and a lower U tube inserted and assembled. The upper insert tube and the lower U tube are positioned by a sliding elastic pin 33, and the two sides of the ladder pedal 14 have sleeves, which are respectively sleeved on the corresponding pipe fittings of the corresponding front support leg 11, and are positioned and fixed by the pedal elastic pin, and of course, direct screw fixing can also be used.

[0034] In this embodiment, the frame 17 is also a U-shaped rod, and an angle adjustment seat 16 is fixed to the upper part of the upper support rod 15b, that is, near the upper support cross bar 15a. The two ends of the frame 17 are respectively connected to the corresponding angle adjustment seat 16 by a pivot and locked by the angle adjustment mechanism 2. When the frame 17 is locked in the first working position, the frame 17 and the upper support cross bar 15a form a closed circle. In addition, not shown in the figure, the two upper support rods can also be independently located on the left and right sides, and there is no upper support cross bar between the two. The frame itself is a closed circle, and the two sides of the frame are respectively connected to the corresponding angle adjustment seat by a pivot and locked by the angle adjustment mechanism.

[0035] The specific structure of the angle adjustment mechanism 2 is not the key point of the invention. Any mechanism that can lock two rotating parts can be used. In this embodiment, a sliding tooth block mechanism commonly used in locking the rotating mechanism of a baby carriage is used, such as Figure 4 As shown, it includes a first locking groove opened on the angle adjustment seat 16, a second locking groove opened on the end of the frame 17, a button slidably set on the end of the frame 17, and a tooth block elastic member located in the first locking groove against one side of the sliding tooth block, and the button is against the other side of the sliding tooth block. When the button is pressed, it overcomes the elastic member and completely enters the first locking groove to unlock the frame 17 relative to the upper support rod 15b. Through the misaligned cooperation between the tooth block and the second locking groove, the two rotating parts can be locked at a variety of angles to meet different functional needs, such as the first working position and the second working position of the frame 17 in this embodiment. In the second working position, the frame 17 is tilted forward and downward, and the position just matches the bottom of the child seat and the rear backrest, so that through the structure on the child seat, in this position, the frame 17 can also graft the function of the child seat.

[0036] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A climbing ladder for children, characterized by: include: Front supporting leg (11); A rear supporting leg (12), wherein two upper ends of the rear supporting leg (12) are respectively rotatably connected to upper portions of corresponding sides of the front supporting leg (11); An upper support frame, comprising two left and right upper support rods (15b), wherein the two upper ends of the front support legs (11) respectively extend upward to form the two upper support rods (15b), or the lower part of the upper support rod (15b) is fixedly connected or detachably connected to the upper part of the front support legs (11); A standing board (13), the standing board (13) being installed between the front supporting leg (11) and the rear supporting leg (12), one of the front side portion and the rear side portion of the standing board (13) being detachably connected to the corresponding supporting leg via a platform lock mechanism (3), and the other of the front side portion and the rear side portion of the standing board (13) being pivotally connected to the corresponding supporting leg; A frame (17), the frame (17) being arranged on the upper support frame in an angle-adjustable manner and being locked in at least a first working position by an angle adjustment mechanism (2); when the frame (17) is in the first working position, the standing board (13) forms a standing platform for a child to stand on, and the frame (17) is located above the standing board (13) to form a device for protecting the child's waist.

2. A climbing ladder for infants according to claim 1, characterized in that: The platform locking mechanism (3) comprises a mounting bracket (31) fixedly mounted on vertical rods on both sides of the front supporting leg (11); the mounting bracket (31) comprises a platform body (31a) protruding toward the middle along the left-right direction; both sides of the standing board (13) respectively have upper grooves (32) buckled on the platform body (31a); when the standing board (13) is mounted on the front supporting leg (11), the left and right side portions of the front of the standing board (13) are respectively buckled on the platform body (31a), and the two platform bodies (31a) are respectively located in the corresponding upper grooves (32).

3. A climbing ladder for infants according to claim 2, characterized in that: The platform locking mechanism (3) further comprises sliding spring pins (33) arranged on the left and right sides of the front part of the standing board (13), and a spring pin locking hole (31b) is respectively opened on each side of the mounting bracket (31). When the standing board (13) is mounted on the front supporting leg (11), each sliding spring pin (33) is inserted into the corresponding side spring pin locking hole (31b). A lower knob (34) is also arranged at the bottom of the front side of the standing board (13) to slide forward and backward, and a traction rope is respectively arranged between the lower knob (34) and the sliding spring pins (33) on both sides. By pressing the lower knob (34), the sliding spring pins (33) on both sides can be dragged inward, thereby disengaging from the spring pin locking hole (31b), and the standing board (13) can be lifted upward, and the front supporting leg (11) and the rear supporting leg (12) can be folded forward and backward.

4. A climbing ladder for infants according to claim 3, characterized in that: The platform lock mechanism (3) further comprises a second lock button rotatably or slidably arranged on the front edge of the standing board (13), and an intermediate slide rotatably or slidably arranged in the standing board (13) and inserted into the lower knob (34) so ​​as to prevent the lower knob (34) from sliding and unlocking; the second lock button is pressed to drive the intermediate slide to deviate from the lower knob (34), thereby allowing the lower knob (34) to slide and unlock.

5. The climbing ladder for infants according to claim 1, characterized in that: At least one ladder pedal (14) is installed on the front supporting leg (11) and / or the rear supporting leg (12), and at least one ladder pedal (14) is located at a lower side of the standing board (13).

6. A climbing ladder for infants according to claim 4, characterized in that: The front supporting leg (11) and the rear supporting leg (12) are respectively composed of an upper insert tube and a lower U tube inserted and assembled together, and the upper insert tube and the lower U tube are positioned by a sliding spring pin (33). The two sides of the ladder pedal (14) are provided with sleeves, which are respectively sleeved on the corresponding pipe fittings of the corresponding front supporting leg (11) and / or the rear supporting leg (12), and are positioned and fixed by the pedal spring pin.

7. The climbing ladder for infants according to claim 1, characterized in that: The surrounding frame (17) can also be locked in a second working position through the angle adjustment mechanism (2); when the surrounding frame (17) is in the second working position, the front portion of the surrounding frame (17) is tilted downward.

8. The climbing ladder for infants according to claim 1, characterized in that: The frame (17) is a U-shaped rod, and the two upper support rods (15b) and the upper support cross rod (15a) integrally formed and arranged between the upper ends constitute the U-shaped upper support frame, the lower ends of the two upper support rods (15b) are respectively fixedly connected to the corresponding side upper ends of the front support legs (11), and the upper parts of the two upper support rods (15b) are respectively fixed with angle adjustment seats (16), and the two ends of the frame (17) are respectively pivotally connected to the corresponding angle adjustment seats (16) and locked through the angle adjustment mechanism (2).

9. The climbing ladder for infants according to claim 1, characterized in that: When the enclosure (17) is in the first working position, the rear portion of the enclosure (17) is based on the upper support rod (15b), and the front portion is extended forward.

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