A children's climbing ladder

Abstract

This utility model discloses a children's climbing ladder, belonging to the technical field of children's products. It includes: a support frame composed of front and rear legs; the front legs have a first stop groove along their axial direction, and the rear legs have a second stop groove along their axial direction; a standing plate with a first connecting rod and a second connecting rod at its bottom; the two ends of the first connecting rod are movably or lockably connected to the first stop groove, and the two ends of the second connecting rod are movably or lockably connected to the second stop groove; a sliding guide block is provided on the standing plate perpendicular to the second connecting rod, and the second connecting rod is slidably connected to the sliding guide block; when adjusting the height of the standing plate, the first connecting rod moves along the first stop groove, and the second connecting rod simultaneously moves along the second stop groove and the sliding guide block. The height of the standing plate is adjustable and always maintains a horizontal state, making the children's climbing ladder suitable for children of different ages and flexibly adjustable according to the height of different facilities in the home, enhancing the product's versatility.

Description

Technical Field

[0001] This utility model belongs to the field of children's products technology, specifically relating to a children's climbing ladder. Background Technology

[0002] In daily family life, children often find it difficult to perform basic life actions such as washing, using the toilet, or retrieving items from high places independently due to their height limitations. To help children overcome the inconvenience caused by their height, children's climbing ladders are widely used as an assistive tool. Existing children's climbing ladders usually include a support structure and a step or standing board for children to stand on. By climbing, they can increase their height, thereby assisting them in completing various operations in daily life.

[0003] However, most children's climbing ladders on the market currently have a significant drawback: the height of the standing board is fixed and cannot be adjusted, which leads to many limitations in actual use.

[0004] 1. Poor applicability: Children of different ages have significant height differences, and a fixed standing board height cannot meet the diverse needs of children from toddlers to preschoolers, resulting in a short lifespan for the climbing ladder;

[0005] 2. Insufficient safety: For shorter children, a standing board that is too high may cause difficulty in climbing or even the risk of falling; while for taller children, a standing board that is too low loses its auxiliary function.

[0006] 3. Lack of personalized adjustment function: The existing ladder cannot be flexibly adjusted according to specific usage scenarios (such as different washbasin heights), which affects its practicality and convenience;

[0007] 4. High cost of repeated purchases: As children grow taller, parents often need to replace the climbing ladders with multiple ladders of different heights, which increases the financial burden and is not conducive to the rational use of resources. Summary of the Invention

[0008] This invention addresses the aforementioned problems in the existing technology by proposing a children's climbing ladder with an adjustable standing platform height.

[0009] This utility model can be achieved through the following technical solutions:

[0010] A children's climbing ladder includes:

[0011] The support frame consists of a front support leg and a rear support leg, with an angle between the front support leg and the rear support leg. The front support leg has a first stop groove along its axial direction, and the rear support leg has a second stop groove along its axial direction.

[0012] The standing board has a first connecting rod and a second connecting rod at its bottom. The two ends of the first connecting rod are movably or lockably connected to the first gear slot, and the two ends of the second connecting rod are movably or lockably connected to the second gear slot.

[0013] The standing plate is provided with a sliding guide block in a direction perpendicular to the second connecting rod, and the second connecting rod is slidably connected to the sliding guide block;

[0014] When adjusting the height of the standing board, the first connecting rod moves along the first gear slot, and the second connecting rod moves simultaneously along the second gear slot and the sliding guide block.

[0015] As a further improvement of this utility model, the first connecting rod is provided with first pins that can move along its axis at both ends, and the first gear slot is provided with a plurality of first gear holes, and the first pins can be inserted into or disengaged from the first gear holes.

[0016] As a further improvement of this utility model, the first connecting rod is provided with guide members at both ends, the first connecting rod is rotatably connected to the guide members, the guide members and the first gear groove form a slide rail type mating structure, and the first pin passes through the guide members.

[0017] As a further improvement of this utility model, the two ends of the second connecting rod are provided with second pins that can move along their axis, and the second gear slot is provided with a plurality of second gear holes, and the second pins can be inserted into or disengaged from the second gear holes.

[0018] As a further improvement of this utility model, the bottom of the standing board is provided with a pair of unlocking buttons, and each unlocking button is connected to two pull ropes. The two pull ropes are respectively connected to the first pin and the second pin located on the same side of the standing board.

[0019] As a further improvement of this utility model, a first connecting shell is installed on the front support leg, and a second connecting shell is provided at the end of the rear support leg. The second connecting shell is rotatably connected to the first connecting shell, and a first joint lock is provided at the connection point.

[0020] As a further improvement of this utility model, the first joint lock includes:

[0021] An unlock button is located inside the cavity of the first connecting housing;

[0022] A locking block is disposed in the inner cavity of the second connecting housing;

[0023] A reset spring is disposed in the inner cavity of the second connecting housing and is used to provide elastic force on the locking block toward the unlocking button.

[0024] As a further improvement of this utility model, the inner cavity of the first connecting shell is provided with a first receiving groove, and the inner cavity of the second connecting shell is provided with a second receiving groove. The shapes of the first receiving groove and the second receiving groove match the shape of the locking block.

[0025] When the locking block is engaged in the first receiving slot, the first connecting housing and the second connecting housing are locked together.

[0026] After the unlock button is pressed, the unlock button pushes the locking block into the second receiving groove, and the first connecting shell and the second connecting shell can rotate relative to each other.

[0027] As a further improvement of this utility model, a telescopic tube is provided on the top surface of the front support leg, the telescopic tube is telescopically connected to the front support leg, and a protective barrier is installed between the two telescopic tubes.

[0028] As a further improvement of this utility model, a second joint lock is provided at the connection between the protective fence and the telescopic tube. When the second joint lock is in the locked state, the protective fence is in a fixed state. When the second joint lock is unlocked, the protective fence is in an unlocked state and can rotate around the second joint lock.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Highly adaptable to meet the needs of children of different heights: By adjusting the height of the standing board, the ladder can be adapted to the usage needs of children of different ages, and the height can be flexibly adjusted according to the home environment (such as sink, dining table, etc.), improving the product's versatility and practicality.

[0031] 2. The standing platform always remains level: By utilizing the sliding fit between the first connecting rod and the front support leg, and the second connecting rod and the rear support leg, as well as the design of the sliding guide block, the standing platform always remains level during adjustment, enhancing stability and safety.

[0032] 3. Simple operation, height adjustment without tools. Users only need to pull the unlock button to disengage the connecting rod pin, then manually adjust the height of the standing board. After releasing the button, the pin will automatically reset and lock. The whole process is simple, quick and responsive.

[0033] 4. Features folding and storage functions, saving space and facilitating transportation: The standing platform can be flipped and folded, and the rear support legs can be rotated around the joints for storage, which is convenient for daily household storage and also helps manufacturers reduce volume and improve space utilization during transportation.

[0034] 5. Safety protection design enhances usage safety: It is equipped with telescopic tubes and adjustable protective barriers, and uses joint locks to lock and store them, effectively preventing children from falling backward and fully ensuring the safety of children during use. Attached Figure Description

[0035] Figure 1 This is a structural schematic diagram of the children's climbing ladder of this utility model in its unfolded state;

[0036] Figure 2 This is the utility model Figure 1 A schematic diagram of the bottom structure;

[0037] Figure 3 This is a schematic diagram showing the connection between the pull rope and the first and second pins of this utility model.

[0038] Figure 4 This is a side view of the children's climbing ladder of this utility model in its unfolded state;

[0039] Figure 5 This is the utility model Figure 4 Sectional view along AA;

[0040] Figure 6 This is the utility model Figure 5 A magnified view of a section at point B in the middle;

[0041] Figure 7 This is a schematic diagram of the structure of the first control button and locking block of this utility model;

[0042] Figure 8 This is a structural diagram of the children's climbing ladder of this utility model in its folded state;

[0043] Figure 9 This is a schematic diagram of the internal structure of the second joint lock of this utility model;

[0044] Figure 10 This is a schematic diagram of the internal structure of the second joint lock of this utility model from another perspective.

[0045] In the diagram, 100 is the support frame; 110 is the front support leg; 111 is the first gear slot; 1111 is the first gear hole; 120 is the rear support leg; 121 is the second gear slot; 1211 is the second gear hole; 1212 is the opening; 1213 is the clearance button; 130 is the first connecting housing; 131 is the first receiving slot; 140 is the second connecting housing; 141 is the second receiving slot; 150 is the first joint lock; 151 is the first control button; 152 is the locking block; 160 is the telescopic tube; 170 is the protective barrier; 180 is the second joint lock; 181 is the fixed housing; 1811 is the gear plate; 1812 is the arc-shaped groove; 1812a is the first locking groove; 1812b is the second locking groove; 1812c is the third locking groove; 182 is the rotating housing; 1821 is the second control button; 1822 is the gear pin.

[0046] 200, Standing plate; 210, First connecting rod; 211, First pin; 212, Guide; 220, Second connecting rod; 221, Second pin; 230, Sliding guide block; 240, Unlock button; 241, Pull rope; 250, Lead wire frame. Detailed Implementation

[0047] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0048] like Figures 1-10 As shown, this utility model provides a children's climbing ladder, comprising:

[0049] The support frame 100 is composed of a front support leg 110 and a rear support leg 120. An angle is formed between the front support leg 110 and the rear support leg 120. The front support leg 110 is provided with a first stop groove 111 along its axial direction, and the rear support leg 120 is provided with a second stop groove 121 along its axial direction.

[0050] The standing plate 200 has a first connecting rod 210 and a second connecting rod 220 at its bottom. The first connecting rod 210 is movably or lockably disposed in the first gear slot 111, and the second connecting rod 220 is movably or lockably disposed in the second gear slot 121.

[0051] The standing plate 200 is provided with a sliding guide block 230 in a direction perpendicular to the second connecting rod 220, and the second connecting rod 220 is slidably connected to the sliding guide block 230.

[0052] It should be noted that since the front support leg 110 and the rear support leg 120 are at an angle and are not parallel, the aforementioned sliding guide block 230 needs to be installed at the bottom of the standing plate 200 so that when the height of the standing plate 200 is adjusted, the second connecting rod 220 can adaptively adjust its position at the bottom of the standing plate 200 to ensure that the standing plate 200 is always in a horizontal position.

[0053] Specifically, when adjusting the height of the standing board 200, the first connecting rod 210 moves along the first stop groove 111 to change its connection position on the front support leg 110, the second connecting rod 220 moves along the second stop groove 121 to change its connection position on the rear support leg 120, and the second connecting rod 220 moves synchronously along the sliding guide block 230 to change its connection position on the standing board 200.

[0054] The children's climbing ladder provided in this embodiment has at least the following advantages compared to children's climbing ladders in the prior art:

[0055] 1. Adaptable to the needs of children of different heights: By adjusting the height of the standing board by 200mm, this ladder can meet the needs of children of different heights, making it versatile. The height can also be flexibly adjusted according to actual usage scenarios (such as washbasins, dining tables, etc.), enhancing the product's adaptability to different home environments.

[0056] 2. The standing plate 200 always maintains a horizontal position: The first connecting rod 210 slides with the stop grooves on the front support leg 110 and the rear support leg 120, and combined with the sliding cooperation between the second connecting rod 220 and the standing plate 200, the standing plate 200 always maintains a horizontal position at different heights, improving the stability and safety of use;

[0057] 3. Extend service life and reduce usage costs: One climbing ladder can meet the needs of children at multiple growth stages, avoiding frequent equipment replacements due to changes in height, and significantly improving product cost-effectiveness and resource utilization.

[0058] Furthermore, the following is a detailed description of the connection structure between the standing plate 200 and the front support leg 110 and the rear support leg 120:

[0059] Preferably, the first connecting rod 210 is provided with first pins 211 that can move along its axis at both ends, and the first stop groove 111 is provided with a plurality of first stop holes 2111. The first pins 211 can be inserted into or disengaged from the first stop holes 2111 to realize the position adjustment and locking of the first connecting rod 210, thereby realizing the position adjustment and locking between the standing plate 200 and the front support leg 110.

[0060] Furthermore, the first connecting rod 210 is provided with guide members 212 at both ends. The guide members 212 and the first gear slot 111 form a slide rail type mating structure. The first pin 211 passes through the guide member 212 and is connected to a certain first gear hole 2111.

[0061] Similarly, the two ends of the second connecting rod 220 are provided with second pins 221 that can move along its axis. The second pins 221 can be inserted into or disengaged from the second stop hole 1211 to realize the position adjustment and locking between the second connecting rod 220 and the rear support leg 120.

[0062] Preferably, the bottom of the standing board 200 is provided with a pair of unlocking buttons 240, and each first control button 240 is connected to two pull ropes 241. The two pull ropes 241 are respectively connected to the first pin 211 and the second pin 221 located on the same side of the standing board 200.

[0063] Therefore, by simultaneously pulling the two unlocking buttons 240 on the left and right, all the first pins 221 and the second pins 221 can be pulled inward by the pull rope 241, so that they are disengaged from the first gear hole 2111 and the second gear hole 1211. At this time, the standing plate 200 is in a free adjustment state, and its front and rear sides can be adjusted up and down along the first gear groove 111 and the second gear groove 121 respectively, so as to realize the height adjustment of the standing plate 200.

[0064] The inner ends of the first pin 211 and the second pin 221 are both connected to a reset spring (not shown in the figure). Once the pulling force applied to the unlock button 240 is removed, the first pin 211 and the second pin 221 will be reset under the push of their respective reset springs and inserted into the corresponding first position hole 1111 and second position hole 1211 to achieve the purpose of automatic locking.

[0065] Meanwhile, the reset spring also ensures the stability and firmness of the first connecting rod 210 and the front support leg 110, and the second connecting rod 220 and the rear support leg 120 after locking, thereby ensuring that the standing board 200 has sufficient firmness for children to stand on and improving the safety of children when standing.

[0066] In addition, the bottom of the standing board 200 is provided with a lead wire frame 250, which is connected to the unlock button 240 and the first connecting rod 210. The pull rope 241 is led out from the unlock button 240 and then passed through the lead wire frame 250 to the first connecting rod 210 and connected to the first pin 211.

[0067] Meanwhile, the lead frame 250 has a first through hole on the side facing the second connecting rod 220, and the corresponding side wall of the second connecting rod 220 has a second through hole. The pull rope 241 passes through the first through hole and the second through hole in sequence and then connects to the second pins 221 at both ends of the second connecting rod 220.

[0068] Based on the connection structure between the standing plate 200 and the front support leg 110 and the rear support leg 120, the specific operation process for adjusting the height of the standing plate 200 is described below:

[0069] 1. When the user pulls the unlock button 240, the first pins 211 at both ends of the first connecting rod 210 disengage from the first stop hole 1111, and at the same time, the second pins 221 at both ends of the second connecting rod 220 disengage from the second stop hole 1211. At this time, both the front and rear sides of the standing plate 200 that are used to connect with the front support leg 110 and the rear support leg 120 are in a movable state.

[0070] 2. The user holds the pulling force on the unlock button 240 and pulls up or presses down the standing plate 200 to adjust the height of the standing plate 200. During this process, as the second connecting rod 220 moves along the inclined second gear groove 121, the second connecting rod 220 is subjected to horizontal resistance during the movement, causing it to move back and forth along the sliding guide block 230, ensuring that the standing plate 200 can always remain horizontal during the adjustment process.

[0071] 3. After the standing plate 200 is adjusted to the desired height position, the pulling force on the unlock button 240 is released, and the first pin 211 and the second pin 221 can be pushed into the first position hole 1111 and the second position hole 1211 under the action of the return spring, thus completing the automatic locking of the standing plate 200.

[0072] The entire adjustment process requires no tools, is simple to operate, and responds quickly. Furthermore, the various connecting structures work together during the adjustment process to ensure the stability of the motion trajectory and the horizontality of the posture, thereby improving the safety and comfort of use.

[0073] Furthermore, the following is a detailed description of how to store children's climbing ladders:

[0074] Regarding the storage of the 200 standing board:

[0075] Preferably, the first connecting rod 210 is rotatably connected to the guide member 212. When storing the standing board 200, simply toggling the unlock button 240 will convert the first connecting rod 210 and the second connecting rod 220 into a movable state, at which point the standing board 200 can be flipped over for storage.

[0076] In addition, the rear support leg 120 has an opening 1212 on the side of the second gear slot 121. After the second pin 221 of the second connecting rod 220 is disengaged from the second gear hole 1211, it can be moved out of the second gear slot 121 from the opening 1212, so that the standing plate 200 can be freely flipped over for folding.

[0077] Furthermore, an obstacle avoidance button 1213 is provided at the opening 1212. When no external force is applied, the obstacle avoidance button 1213 blocks the opening 1212, ensuring that the second pin 221 can only move within the second position slot 121. After pressing the obstacle avoidance button 1213, the second pin 221 can move out of the second position slot 121 from the opening 1212, so that the rear side of the standing board 200 is completely converted to a free state, and the standing board 200 can be flipped over for storage.

[0078] In other words, the standing board 200 has two storage methods in this embodiment:

[0079] 1. During the process of flipping and storing the standing board 200, its front side gradually moves upward along the front support leg 110, while its rear side gradually moves downward along the rear support leg 120, thereby realizing the folding and storage of the standing board 200.

[0080] Second, after the second connecting rod 220 disengages from the second gear slot 121, the rear side of the standing plate 200 is converted to a fully free mode, allowing the standing plate 200 to be flipped over and stored.

[0081] The two storage methods of the 200 standing board are used in different scenarios:

[0082] The first storage method is suitable for users to use when storing things at home. After storage, the standing board 200 still has a certain angle with the vertical surface.

[0083] The second storage method is suitable for manufacturers to store during transportation. In this case, since the rear side of the standing board 200 is converted to a fully free mode, the standing board 200 can be flipped to be parallel to the vertical plane, thereby minimizing the volume and improving the space utilization during transportation.

[0084] Regarding the storage of the rear support leg 120:

[0085] Preferably, a first connecting shell 130 is installed on the front support leg 110, and a second connecting shell 140 is provided at the end of the rear support leg 120. The second connecting shell 140 is rotatably connected to the first connecting shell 130, and a first joint lock 150 is provided at the connection point. That is, the rear support leg 120 and the front support leg 110 are locked and unlocked by the first joint lock 150. After unlocking, the rear support leg 120 can rotate around the first joint lock 150 to realize the storage of the rear support leg 120.

[0086] Specifically, the first joint lock 150 includes:

[0087] The first control button 151 is disposed in the inner cavity of the first connecting housing 130;

[0088] Locking block 152 is disposed in the inner cavity of the second connecting housing 140;

[0089] A spring (not shown in the figure) is disposed in the inner cavity of the second connecting housing 140 and is used to provide a spring force for the locking block 152 toward the first control button 151.

[0090] Furthermore, the inner cavity of the first connecting housing 130 is provided with a first receiving groove 131, and the inner cavity of the second connecting housing 140 is provided with a second receiving groove 141. The shapes of the first receiving groove 131 and the second receiving groove 141 match the shape of the locking block 152. For example, in this embodiment, the locking block 152 is configured as a gear-shaped structure (or other engaging structure), and the corresponding first receiving groove 131 and second receiving groove 141 are also configured as gear-shaped structures.

[0091] When the first joint lock 150 is in the locked state, under the action of the spring, the locking block 152 is pushed to the side of the first connecting shell 130 and locked into the first receiving groove 131. At this time, the two connecting shells (the connecting part between the front support leg 110 and the rear support leg 120) are relatively fixed and cannot be rotated, thereby ensuring the stability and safety of the ladder structure during use.

[0092] When the angle needs to be adjusted or the ladder needs to be folded, the user presses the first control button 151, pushes the locking block 152 to overcome the spring force, and causes it to disengage from the first receiving groove 131 and slide into the second receiving groove 141 inside the second connecting shell 140. At this time, the locking block 152 no longer restricts the relative movement between the two connecting shells, and the first connecting shell 130 and the second connecting shell 140 can rotate freely to realize the angle adjustment of the second connecting shell 140, thereby driving the rear support leg 120 to rotate synchronously to achieve its storage purpose.

[0093] It is worth mentioning that the first joint lock 150, through the cooperative design of the locking block 152 with the first receiving groove 131 and the second receiving groove 141, ensures that the structure is stable in the locked state and can rotate flexibly when unlocked, thus meeting the dual needs of use and storage.

[0094] Furthermore, this button-style unlocking method is simple and intuitive, allowing users to operate quickly. At the same time, the overall structure is integrated inside the shell, making it aesthetically pleasing and space-saving.

[0095] In addition, to ensure the safety of children when standing on the standing board 200, a telescopic tube 160 is provided on the top surface of the front support leg 110. The telescopic tube 160 is telescopically connected to the front support leg 110, and a protective barrier 170 is installed between the two telescopic tubes 160. The protective barrier 170 can provide support and protection for the child's back or the back of the body, prevent them from falling backward, and improve the overall safety factor.

[0096] The protective fence 170 is connected to the telescopic tube 160 with a second joint lock 180. When the second joint lock 180 is locked, the protective fence 170 is fixed. When the second joint lock 180 is unlocked, the protective fence 170 is unlocked and can rotate around the second joint lock 180 to adjust the position of the protective fence 170 and store it.

[0097] Preferably, the second joint lock 180 includes a fixed housing 181 and a rotating housing 182 connected to each other. The fixed housing 181 is connected to the telescopic tube 160, and the rotating housing 182 is connected to the protective fence 170. When the protective fence 170 rotates, it drives the rotating housing 182 to rotate.

[0098] The fixed housing 181 is provided with a stop plate 1811, which has an arc-shaped slot 1812. The middle section of the arc-shaped slot 1812 has a recessed first locking groove 1812a, and the two ends of the arc-shaped slot 1812 are a second locking groove 1812b and a third locking groove 1812c, respectively.

[0099] Correspondingly, the rotating housing 182 is provided with a second control button 1821 that can move up and down. The side of the second control button 1821 is provided with a stop pin 1822. The stop pin 1822 is movably inserted into the arc-shaped slot 1812, and a spring force is provided to the second control button 1821 by setting an elastic element (e.g., a spring) to ensure the stability of the stop pin 1822 in each locking slot.

[0100] Specifically, when the gear pin 1822 is located in the first locking groove 1812a, the protective barrier 170 is in a protective state. At this time, the protective barrier 170 is located on a horizontal surface and can protect children.

[0101] By pushing the second control button 1821 upwards to disengage it from the first locking groove 1812a, the protective barrier 170 can be rotated upwards or downwards until the stop pin 1822 enters the second locking groove 1812b or the third locking groove 1812c, at which point the protective barrier 170 is locked.

[0102] It is worth mentioning that the shift pin 1822 moves smoothly in sequence, whether it moves from the second locking slot 1812b to the first locking slot 1812a or from the third locking slot 1812c to the first locking slot 1812a. There is no need to push the second control button 1821 upwards. That is, after the child enters the standing board 200, he can directly rotate the protective barrier 170 until it is rotated to the protective position and automatically locked. The operation is simple and convenient and can be completed independently by the child.

[0103] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0104] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0105] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0106] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0107] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A child's climbing ladder, characterised in that, include: The support frame consists of a front support leg and a rear support leg, with an angle between the front support leg and the rear support leg. The front support leg has a first stop groove along its axial direction, and the rear support leg has a second stop groove along its axial direction. The standing board has a first connecting rod and a second connecting rod at its bottom. The two ends of the first connecting rod are movably or lockably connected to the first gear slot, and the two ends of the second connecting rod are movably or lockably connected to the second gear slot. The standing plate is provided with a sliding guide block in a direction perpendicular to the second connecting rod, and the second connecting rod is slidably connected to the sliding guide block; When adjusting the height of the standing board, the first connecting rod moves along the first gear slot, and the second connecting rod moves simultaneously along the second gear slot and the sliding guide block.

2. A children's climbing ladder according to claim 1, characterized in that, The first connecting rod has first pins at both ends that can move along its axis, and the first gear slot has a plurality of first gear holes. The first pins can be inserted into or disengaged from the first gear holes.

3. A children's climbing ladder according to claim 2, characterized in that, The first connecting rod has guide members at both ends, and the first connecting rod is rotatably connected to the guide members. The guide members and the first gear slot form a slide rail type mating structure, and the first pin passes through the guide members.

4. A children's climbing ladder according to claim 2, characterized in that, The second connecting rod has a second pin at both ends that can move along its axis, and the second position groove has a plurality of second position holes, and the second pin can be inserted into or disengaged from the second position holes.

5. A children's climbing ladder according to claim 4, characterized in that, The bottom of the standing board is provided with a pair of unlocking buttons, and each unlocking button is connected to two pull ropes. The two pull ropes are respectively connected to the first pin and the second pin located on the same side of the standing board.

6. A children's climbing ladder according to claim 1, characterized in that, The front support leg is equipped with a first connecting shell, and the end of the rear support leg is provided with a second connecting shell. The second connecting shell is rotatably connected to the first connecting shell, and a first joint lock is provided at the connection point.

7. A children's climbing ladder according to claim 6, characterized in that, The first joint lock includes: An unlock button is located inside the cavity of the first connecting housing; A locking block is disposed in the inner cavity of the second connecting housing; A reset spring is disposed in the inner cavity of the second connecting housing and is used to provide elastic force on the locking block toward the unlocking button.

8. A children's climbing ladder according to claim 7, characterized in that, The first connecting housing has a first receiving groove in its inner cavity, and the second connecting housing has a second receiving groove in its inner cavity. The shapes of the first and second receiving grooves match the shape of the locking block. When the locking block is engaged in the first receiving slot, the first connecting housing and the second connecting housing are locked together. After the unlock button is pressed, the unlock button pushes the locking block into the second receiving groove, and the first connecting shell and the second connecting shell can rotate relative to each other.

9. A children's climbing ladder according to claim 6, characterized in that, The top surface of the front outrigger is provided with a telescopic tube, which is telescopically connected to the front outrigger. A protective barrier is installed between the two telescopic tubes.

10. A children's climbing ladder according to claim 9, characterized in that, A second joint lock is provided at the connection between the protective fence and the telescopic tube. When the second joint lock is locked, the protective fence is fixed. When the second joint lock is unlocked, the protective fence is unlocked and can rotate around the second joint lock.

Images