A crib capable of preventing a baby from climbing and falling

CN122536848APending Publication Date: 2026-08-11GUANGDONG TESTING INST OF PROD QUALITY SUPERVISION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-30
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]目前常见的婴儿床其多通过多个板材拼装而成,而拼装而成的婴儿床其自身的高度多为固定的,而随着婴儿的长大,固定尺寸在婴儿床在使用时难以很好的起到防护的目的,即在使用时可能导致婴儿攀爬时出现跌落的情况,进而致使婴儿受伤的情况出现,整体实用性不佳

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Abstract

This invention relates to the field of infant and toddler products technology, and more particularly to a crib designed to prevent infants from climbing and falling. The invention includes a crib frame body, a first side plate fixed to one end of the top of the crib frame body, and a second side plate fixed to one side of the top of the crib frame body. A first synchronous pulley is rotatably connected to the bottom of the crib frame body, and a rotating wheel is connected to the bottom of the first synchronous pulley. A first internal toothed belt is fitted onto the outer surface of the first synchronous pulley, and a second synchronous pulley is connected to the inner side of the other end of the first internal toothed belt. Through the structure of the rotating wheel, synchronous pulley, internal toothed belt, and threaded rod, this invention allows for convenient adjustment of the height of the first protective plates on both sides according to actual usage needs, thereby preventing infants from climbing and falling. Furthermore, the height of the first protective plates can be precisely adjusted according to the infant's height, resulting in greater flexibility and practicality.
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Description

Technical Field

[0001] This invention relates to the field of infant and toddler products technology, and in particular to a crib that can prevent infants from climbing and falling. Background Technology

[0002] A crib is a core product for infants aged 0-3 years. Its core function is to provide a safe and comfortable sleeping and activity space for infants, ensuring their personal safety when unattended. As infants grow older, they gradually develop the ability to sit and crawl after 6 months, and their mobility further increases after 15 months, with climbing becoming a typical behavioral characteristic at this stage. The resulting risk of falls has become one of the most significant safety hazards in crib use, potentially leading to injuries such as falls and fractures, posing a major threat to the healthy growth of infants.

[0003] Most common baby cribs are assembled from multiple boards, and the height of these assembled cribs is usually fixed. As the baby grows, the fixed size makes it difficult for the crib to provide adequate protection during use. This could lead to the baby climbing and falling, resulting in injury. Overall, the crib is not very practical. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides the following technical solution: A crib designed to prevent infants from climbing and falling includes a crib frame body, a first side panel fixed to one end of the top of the crib frame body, and a second side panel fixed to one side of the top of the crib frame body. The bottom of the bed frame body is rotatably connected to a first synchronous pulley, and the bottom of the first synchronous pulley is connected to a rotating wheel. The outer surface of the first synchronous pulley is fitted with a first internal toothed belt, and the inner side of the other end of the first internal toothed belt is connected to a second synchronous pulley. The outer ring surface of one end of the second synchronous pulley is fitted with a second internal toothed belt, and the other end of the second internal toothed belt is connected to a third synchronous pulley. The outer ring surface of one end of the third synchronous pulley is fitted with a third internal toothed belt, and the inner side of the other end of the third internal toothed belt is connected to a fourth synchronous pulley. The outer ring surface of one end of the fourth synchronous pulley is fitted with a fourth internal toothed belt, and the inner side of the other end of the fourth internal toothed belt is connected to a fifth synchronous pulley. A threaded rod is fixedly connected to the center of the top of the fifth synchronous pulley, and a first protective plate is fitted on the outer side of the threaded rod.

[0005] Preferably, a first spring is provided in the inner cavity of one end of the bed frame body, and a locking rod is connected to the bottom of the first spring, with a limiting baffle sleeved on the outer ring surface of one end of the locking rod.

[0006] Preferably, the surface of the second side plate is provided with positioning holes, and the inner wall of the second side plate is fixed with guide strips.

[0007] Preferably, the inner cavity of the second side plate is provided with a guide rod, and the outer ring surface of the guide rod is fitted with a second spring.

[0008] Preferably, a second protective plate is slidably connected to the inner cavity of the second side plate, and a guide groove is provided on the surface of the second protective plate. A positioning rod passes through the bottom inner side of the second protective plate, and an auxiliary sliding plate is sleeved on the outer ring surface of one end of the positioning rod. A third spring is connected to the surface of one end of the auxiliary sliding plate.

[0009] Preferably, the rotating wheel is welded to the first synchronous wheel, and the surface of the rotating wheel has multiple holes arranged in a ring.

[0010] Preferably, the first protective plate and the first side plate are slidably connected, and threaded holes are symmetrically opened on both sides of the bottom of the first protective plate, and the first protective plate is threadedly connected to the threaded rod through the threaded holes.

[0011] Preferably, the locking rod is slidably connected to the bed frame body via a first spring, and the outer diameter of the locking rod is adapted to the size of the hole opened on the surface of the rotating wheel.

[0012] Preferably, the positioning holes are equidistantly distributed along one end surface of the second side plate, and the positioning holes and the second side plate form an integrated structure.

[0013] Preferably, the positioning rod is slidably connected to the second protective plate via an auxiliary sliding plate, and the outer diameter of the positioning rod is adapted to the inner diameter of the positioning hole.

[0014] As an improvement to the above technical solution, the structure of the set wheel, synchronous wheel, internal toothed belt and threaded rod can be used to easily adjust the position and height of the first protective plate on both sides according to the actual use needs, thereby preventing the baby from climbing and falling. The position and height of the first protective plate can be precisely adjusted according to the baby's height, etc., and the whole has greater flexibility and practicality.

[0015] The beneficial effects of this invention are: 1. The present invention, through the design of a rotating wheel, a synchronous wheel, an internal toothed belt, and a threaded rod, allows for easy adjustment of the height of the first protective plates on both sides according to actual usage needs during subsequent use. This prevents infants from climbing and falling during use. Furthermore, the height of the first protective plates can be precisely adjusted according to the infant's height, resulting in greater flexibility and practicality.

[0016] 2. The present invention, through the setting of positioning rods, positioning holes and springs, can facilitate the further adjustment of the position of the second protective plates at both ends during subsequent use. Moreover, the second protective plates on both sides can be adjusted independently, allowing for different height adjustments, which is more flexible. Combined with the setting of the first protective plate, it can effectively prevent climbing and falling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention from a bottom view; Figure 4 This is a schematic diagram of the cross-sectional structure of the second protective plate of the present invention; Figure 5 This is a bottom view of the first protective plate structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the first side plate of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the main body of the bed frame of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the second protective plate of the present invention.

[0018] Reference numerals in the attached drawings: 1. Bed frame body; 2. First side plate; 3. Second side plate; 4. First synchronous pulley; 5. Rotary wheel; 6. First internal toothed belt; 7. Second synchronous pulley; 8. Second internal toothed belt; 9. Third synchronous pulley; 10. Third internal toothed belt; 11. Fourth synchronous pulley; 12. Fourth internal toothed belt; 13. Fifth synchronous pulley; 14. Threaded rod; 15. First protective plate; 16. First spring; 17. Locking rod; 18. Limiting baffle; 19. Positioning hole; 20. Guide bar; 21. Guide rod; 22. Second spring; 23. Second protective plate; 24. Guide groove; 25. Positioning rod; 26. Auxiliary sliding plate; 27. Third spring. Detailed Implementation

[0019] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0020] Reference Figure 1-8 A crib designed to prevent infants from climbing and falling includes a crib frame body 1, a first side panel 2 fixed to one end of the top of the crib frame body 1, and a second side panel 3 fixed to one side of the top of the crib frame body 1. The bottom of the bed frame body 1 is rotatably connected to a first synchronous pulley 4, and the bottom of the first synchronous pulley 4 is connected to a rotating wheel 5. The outer surface of the first synchronous pulley 4 is fitted with a first internal toothed belt 6, and the inner side of the other end of the first internal toothed belt 6 is connected to a second synchronous pulley 7. The outer ring surface of one end of the second synchronous pulley 7 is fitted with a second internal toothed belt 8, and the other end of the second internal toothed belt 8 is connected to a third synchronous pulley 9. The outer ring surface of one end of the third synchronous pulley 9 is fitted with a third internal toothed belt 10, and the inner side of the other end of the third internal toothed belt 10 is connected to a fourth synchronous pulley 11. The outer ring surface of one end of the fourth synchronous pulley 11 is fitted with a fourth internal toothed belt 12, and the inner side of the other end of the fourth internal toothed belt 12 is connected to a fifth synchronous pulley 13. A threaded rod 14 is fixedly connected to the center of the top of the fifth synchronous pulley 13, and a first protective plate 15 is fitted on the outer side of the threaded rod 14. In this embodiment, to better protect the infant and prevent falls due to climbing, the rotating wheel 5 is pre-rotated. The rotation of the rotating wheel 5 causes the first synchronous wheel 4 to rotate as well. The rotation of the first synchronous wheel 4 causes the first internal toothed belt 6 to move. Since the second synchronous wheel 7 is connected to the inner side of the other end of the first internal toothed belt 6, the movement of the first internal toothed belt 6 causes the second synchronous wheel 7 to rotate. This rotation of the second synchronous wheel 7 drives the second internal toothed belt 8 to move. Subsequently, the movement of the second internal toothed belt 8 drives the third synchronous wheel 9, connected to the inner side of its other end, to rotate. This rotation of the third synchronous wheel 9 then drives the third internal toothed belt 10 to move as well. The other end of the third internal toothed belt 10 is connected to the inner side of the fourth synchronous pulley 11. Thus, the movement of the third internal toothed belt 10 will cause the fourth synchronous pulley 11 to rotate. Under the rotation of the fourth synchronous pulley 11, the fourth internal toothed belt 12 will drive the fifth synchronous pulley 13 to rotate. Since the top center of each of the multiple synchronous pulleys is fixedly connected to a threaded rod 14, the rotation of the multiple synchronous pulleys will cause the multiple threaded rods 14 to rotate synchronously. Since the threaded rod 14 is threadedly connected to the first protective plate 15, the rotation of the threaded rod 14 will cause the first protective plate 15 to move longitudinally. This facilitates the subsequent adjustment of the longitudinal position of the first protective plate 15 to effectively protect the baby and prevent him from falling due to climbing.

[0021] In this invention, a first spring 16 is provided in the inner cavity of one end of the bed frame body 1, and a locking rod 17 is connected to the bottom of the first spring 16. A limiting baffle 18 is sleeved on the outer ring surface of one end of the locking rod 17. In this embodiment, when the rotating wheel 5 has finished rotating, the longitudinal force applied to the limiting baffle 18 is released. Since the longitudinal movement of the limiting baffle 18 will cause the locking rod 17 to squeeze the first spring 16, thereby deforming the first spring 16 and generating a reverse force, when the longitudinal force applied to the limiting baffle 18 disappears, the reverse force generated by the deformation of the first spring 16 will push the locking rod 17 in the opposite direction, thereby inputting one end of the locking rod 17 into the inner side of the rotating wheel 5, so as to achieve the limiting treatment of the rotating wheel 5 and prevent the rotating wheel 5 from rotating on its own after the position of the first protective plate 15 is adjusted. The limiting baffle 18 is used to improve the stability of the locking rod 17 during the movement process.

[0022] In this invention, a positioning hole 19 is provided on the surface of the second side plate 3, a guide strip 20 is fixedly provided on the inner wall of the second side plate 3, a guide rod 21 is provided in the inner cavity of the second side plate 3, and a second spring 22 is sleeved on the outer ring surface of the guide rod 21. A second protective plate 23 is slidably connected to the inner cavity of the second side plate 3, and a guide groove 24 is provided on the surface of the second protective plate 23. A positioning rod 25 passes through the inner bottom of the second protective plate 23, and an auxiliary sliding plate 26 is sleeved on the outer ring surface of one end of the positioning rod 25. A third spring 27 is connected to the surface of one end of the auxiliary sliding plate 26. In this embodiment, when the position adjustment of the second protective plate 23 is required, firstly, the positioning rod 25 is squeezed, causing one end of the positioning rod 25 to disengage from the inner side of the positioning hole 19. As the positioning rod 25 disengages, it drives the auxiliary sliding plate 26 to move within the cavity of the second protective plate 23. The movement of the auxiliary sliding plate 26 improves the stability of the positioning rod 25 during its movement. Simultaneously, the movement of the positioning rod 25 causes the third spring 27 to deform, generating a reverse force. Then, when all the positioning rods 25 disengage from the inner side of the positioning hole 19, the second protective plate 23 is longitudinally moved. At this time, the longitudinal movement of the second protective plate 23 will move along the guide rod 21, thereby improving the stability of the second protective plate 23 during its movement. As the second protective plate 23 moves, the second spring 22 also deforms to generate a reverse force, facilitating the subsequent longitudinal reset of the second protective plate 23. When the second protective plate 23 moves longitudinally, it moves along the guide bar 20 through the guide groove 24 on its surface, thereby further improving the stability of the second protective plate 23 during movement. After the position of the second protective plate 23 is adjusted, the positioning rod 25 moves back to one side of the other positioning hole 19. At this time, the pressure applied to the positioning rod 25 is released, and under the reverse force generated by the deformation of the third spring 27, one end of the positioning rod 25 can be re-entered into the inner side of the other positioning hole 19, realizing the repositioning of the second protective plate 23, thereby achieving the purpose of protection.

[0023] In this invention, the rotating wheel 5 is welded to the first synchronous wheel 4, and the surface of the rotating wheel 5 has multiple holes arranged in a ring array; In this embodiment, since the rotating wheel 5 and the first synchronous wheel 4 are fixedly connected, the rotation of the first synchronous wheel 4 can be easily realized as the rotating wheel 5 moves.

[0024] In this invention, the first protective plate 15 and the first side plate 2 are slidably connected, and threaded holes are symmetrically opened on both sides of the bottom of the first protective plate 15, and the first protective plate 15 is threadedly connected to the threaded rod 14 through the threaded holes. In this embodiment, since the first protective plate 15 is connected to the threaded rod 14 through the threaded groove provided at its bottom, the longitudinal movement of the first protective plate 15 can be easily realized as the threaded rod 14 rotates.

[0025] In this invention, the locking rod 17 is slidably connected to the bed frame body 1 via the first spring 16, and the outer diameter of the locking rod 17 is adapted to the size of the hole opened on the surface of the rotating wheel 5; In this embodiment, when the locking rod 17 moves longitudinally, it will cause the first spring 16 to deform accordingly, and generate a reverse force. The reverse force generated by the deformation of the first spring 16 can be used to facilitate the subsequent longitudinal reset of the locking rod 17. When one end of the locking rod 17 is input to the inner side of the rotating wheel 5, the subsequent positioning of the rotating wheel 5 can be facilitated.

[0026] In this invention, the positioning holes 19 are equidistantly distributed along one end surface of the second side plate 3, and the positioning holes 19 and the second side plate 3 form an integrated structure. In this embodiment, the position of the second protective plate 23 can be easily adjusted according to actual usage requirements by using multiple positioning holes 19 equidistantly opened on the surface of the second side plate 3.

[0027] In this invention, the positioning rod 25 is slidably connected to the second protective plate 23 via the auxiliary sliding plate 26, and the outer diameter of the positioning rod 25 is adapted to the inner diameter of the positioning hole 19. In this embodiment, since the size of the positioning rod 25 is adapted to the size of the positioning hole 19, when the positioning rod 25 moves laterally and one end is inserted into the inside of the positioning hole 19, it is convenient to perform subsequent positioning processing of the second protective plate 23. The auxiliary sliding plate 26 is used to improve the stability of the positioning rod 25 during its movement.

[0028] The operating principle and usage of this baby crib designed to prevent infants from climbing and falling are as follows: To better protect the infant and prevent falls due to climbing, first rotate wheel 5. The rotation of wheel 5 will cause the first synchronous pulley 4 to rotate as well. The rotation of the first synchronous pulley 4 will cause the first internal toothed belt 6 to move. Since the other end of the first internal toothed belt 6 is connected to the second synchronous pulley 7, the movement of the first internal toothed belt 6 will cause the second synchronous pulley 7 to rotate. This rotation of the second synchronous pulley 7 will drive the second internal toothed belt 8 to move. Subsequently, the movement of the second internal toothed belt 8 will drive the third synchronous pulley 9, connected to its other end, to rotate as well. The rotation of the step wheel 9 drives the third internal toothed belt 10 to move accordingly. Since the other end of the third internal toothed belt 10 is connected to the inner side of the fourth synchronous pulley 11, the movement of the third internal toothed belt 10 causes the fourth synchronous pulley 11 to rotate. The rotation of the fourth synchronous pulley 11 causes the fourth internal toothed belt 12 to drive the fifth synchronous pulley 13 to rotate. Because threaded rods 14 are fixedly connected to the center of the top of each of the synchronous pulleys, the rotation of the multiple synchronous pulleys causes the multiple threaded rods 14 to rotate synchronously. Since the threaded rods 14 are threadedly connected to the first protective plate 15, the rotation of the threaded rods 14 causes the first protective plate 15 to move longitudinally, facilitating subsequent use of the longitudinal position of the first protective plate 15. Adjustments are made to effectively protect the infant from falls due to climbing. When the rotating wheel 5 has finished rotating, the longitudinal force applied to the limiting baffle 18 is released. Because the longitudinal movement of the limiting baffle 18 causes the locking rod 17 to compress the first spring 16, deforming the first spring 16 and generating a reverse force, when the longitudinal force applied to the limiting baffle 18 disappears, the reverse force generated by the deformation of the first spring 16 will push the locking rod 17 in the opposite direction, thus inputting one end of the locking rod 17 into the inner side of the rotating wheel 5. This achieves the limiting treatment of the rotating wheel 5, preventing the rotating wheel 5 from rotating on its own after the position of the first protective plate 15 is adjusted. The limiting baffle 18 is used to improve the stability of the locking rod 17 during its movement. When the position of the second protective plate 23 needs to be adjusted, firstly, the positioning rod 25 is squeezed, causing one end of the positioning rod 25 to disengage from the inside of the positioning hole 19. As the positioning rod 25 disengages, it drives the auxiliary sliding plate 26 to move within the cavity of the second protective plate 23. The movement of the auxiliary sliding plate 26 improves the stability of the positioning rod 25 during its movement. Simultaneously, the movement of the positioning rod 25 causes the third spring 27 to deform, generating a counterforce. Then, when all the positioning rods 25 have disengaged from the inside of the positioning hole 19, the second protective plate 23 is longitudinally moved. At this time, the longitudinal movement of the second protective plate 23 will move along the guide rod 21, thereby improving the stability of the second protective plate 23 during its movement.As the second protective plate 23 moves, the second spring 22 deforms, generating a reverse force to facilitate the subsequent longitudinal reset of the second protective plate 23. During its longitudinal movement, the second protective plate 23 moves along the guide strip 20 via the guide groove 24 on its surface, further enhancing its stability. Once the position of the second protective plate 23 is adjusted, the positioning rod 25 moves back to one side of the other positioning hole 19. Releasing the pressure on the positioning rod 25 allows one end to be repositioned into the other positioning hole 19 under the reverse force generated by the deformation of the third spring 27, thus repositioning the second protective plate 23 and achieving the protective purpose.

[0029] The above embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit it. Anyone skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A crib which prevents a baby from climbing and falling, characterized in that, It includes a bed frame body (1), a first side plate (2) fixed at one end of the top of the bed frame body (1), and a second side plate (3) fixed at one side of the top of the bed frame body (1). The bed frame body (1) is characterized by the following features: a first synchronous wheel (4) is rotatably connected to the bottom of the bed frame body (1), and a wheel (5) is connected to the bottom of the first synchronous wheel (4). A first internal tooth belt (6) is sleeved on the outer surface of the first synchronous wheel (4), and a second synchronous wheel (7) is connected to the inner side of the other end of the first internal tooth belt (6). A second internal tooth belt (8) is sleeved on the outer ring surface of one end of the second synchronous wheel (7), and a third synchronous wheel (9) is connected to the other end of the second internal tooth belt (8). A third internal tooth belt (10) is sleeved on the outer ring surface of one end of the third synchronous wheel (9), and a fourth synchronous wheel (11) is connected to the inner side of the other end of the third internal tooth belt (10). A fourth internal tooth belt (12) is sleeved on the outer ring surface of one end of the fourth synchronous wheel (11), and a fifth synchronous wheel (13) is connected to the inner side of the other end of the fourth internal tooth belt (12). A threaded rod (14) is fixedly connected to the center of the top of the fifth synchronous wheel (13), and a first protective plate (15) is sleeved on the outer side of the threaded rod (14).

2. The crib of claim 1, wherein: The inner cavity of one end of the bed frame body (1) is provided with a first spring (16), and the bottom of the first spring (16) is connected to a locking rod (17). A limiting baffle (18) is sleeved on the outer ring surface of one end of the locking rod (17).

3. The crib of claim 1, wherein: The second side plate (3) has a positioning hole (19) on its surface and a guide strip (20) is fixed on the inner wall of the second side plate (3).

4. The crib of claim 1, wherein: The inner cavity of the second side plate (3) is provided with a guide rod (21), and the outer ring surface of the guide rod (21) is fitted with a second spring (22).

5. The crib of claim 3, wherein: The inner cavity of the second side plate (3) is slidably connected to the second protective plate (23), and the surface of the second protective plate (23) is provided with a guide groove (24). The bottom inner side of the second protective plate (23) is penetrated by a positioning rod (25), and an auxiliary sliding plate (26) is sleeved on the outer ring surface of one end of the positioning rod (25). A third spring (27) is connected to one end of the auxiliary sliding plate (26).

6. The crib of claim 1, wherein: The rotating wheel (5) is welded to the first synchronous wheel (4), and the surface of the rotating wheel (5) has a ring array of multiple holes.

7. A crib according to claim 1 that prevents infants from climbing and falling, characterized in that: The first protective plate (15) and the first side plate (2) are connected in a sliding manner, and threaded holes are symmetrically opened on both sides of the bottom of the first protective plate (15), and the first protective plate (15) is connected to the threaded rod (14) through the threaded holes.

8. The crib of claim 2, wherein: The locking rod (17) is slidably connected to the bed frame body (1) via the first spring (16), and the outer diameter of the locking rod (17) is matched with the size of the hole opened on the surface of the rotating wheel (5).

9. The crib of claim 3, wherein: The positioning holes (19) are equidistantly distributed along one end surface of the second side plate (3), and the positioning holes (19) and the second side plate (3) form an integrated structure.

10. The crib of claim 5, wherein: The positioning rod (25) is slidably connected to the second protective plate (23) through the auxiliary sliding plate (26), and the outer diameter of the positioning rod (25) is compatible with the inner diameter of the positioning hole (19).