A playard

Abstract

The utility model discloses a game bed, including upper folding frame, support rod, lower folding frame and bottom disc, the upper folding frame includes the upper connecting rod of a plurality of first and last joint, the support rod upper end articulates in the connecting place of two adjacent upper connecting rods, every connecting place all articulates a support rod, the support rod lower end articulates in lower folding frame, the lower folding frame includes the lower connecting rod of equal amount with support rod, and the lower end of each support rod is articulated with one end of a lower connecting rod, and the lower connecting rod is articulated in the bottom disc away from one end of support rod, the both ends of lower connecting rod all articulate and have the reinforcing rod, the utility model discloses a reinforcing rod is set in the both ends of lower connecting rod, and the reinforcing rod can strengthen and steady lower connecting rod, provides certain support to lower connecting rod, makes lower connecting rod not easy to deform or deviate to the whole frame of game bed is more stable to the utility model discloses, and the structural rigidity of game bed under dynamic use condition has been improved.

Description

Technical Field

[0001] This utility model relates to the field of children's furniture, and more particularly to a play bed. Background Technology

[0002] Playbeds are multifunctional children's furniture that combines sleep and entertainment. Typical features include foldable frames, breathable mesh partitions, and detachable play components. While meeting children's basic sleep needs, these products expand their usability through design elements such as built-in toy shelves and crawling tunnels.

[0003] However, existing play beds generally suffer from insufficient structural rigidity. When subjected to dynamic loads, such as when children climb the fence or engage in vigorous activities, the play bed is prone to lateral tipping due to insufficient structural support, which seriously affects the safety and lifespan of the play bed. Utility Model Content

[0004] This invention provides a play bed to solve the technical problem of insufficient structural rigidity in play beds.

[0005] This utility model provides a play bed, including an upper folding frame, support rods, a lower folding frame, and a chassis. The upper folding frame includes multiple upper connecting rods connected end to end. The upper end of each support rod is hinged to the connection point of two adjacent upper connecting rods, and a support rod is hinged to each connection point. The lower end of each support rod is hinged to the lower folding frame. The lower folding frame includes lower connecting rods of the same number as the support rods. The lower end of each support rod is hinged to a lower connecting rod, and the end of each lower connecting rod away from the support rod is hinged to the chassis. Reinforcing rods are hinged to both ends of each lower connecting rod.

[0006] Furthermore, the lower connecting rod includes an outer tube and an inner tube sleeved inside the outer tube and slidably connected to the outer tube. The two ends of the outer tube are respectively hinged to the lower connecting rod and the chassis. Both ends of the inner tube are provided with a rotating shaft hinged to the end of the reinforcing rod away from the lower hinge or the chassis. A through groove is opened on the outer tube, and the rotating shaft is slidably connected to the through groove.

[0007] Furthermore, it also includes an auxiliary rod, one end of which is hinged to the chassis.

[0008] Furthermore, it also includes an upper hinge and a lower hinge. Adjacent upper connecting rods are hinged to each other through the upper hinge, the upper connecting rod and the support rod are hinged to each other through the upper hinge, and the lower connecting rod and the support rod are hinged to each other through the lower hinge.

[0009] Furthermore, it also includes a middle hinge member. The upper connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod of the same upper connecting rod are hinged together by the middle hinge member. The first connecting rod and the second connecting rod of adjacent upper connecting rods are hinged together by the upper hinge member.

[0010] Furthermore, the first connecting rod includes a first upper connecting rod and a first lower connecting rod, and the second connecting rod includes a second upper connecting rod and a second lower connecting rod; the middle hinge includes a side plate, the side plate having a first steering groove hinged to the first upper connecting rod in its center, the first steering groove being horizontal from the center of the side plate and then inclined downwards towards the first upper connecting rod, the first upper connecting rod having a first steering component slidably connected to the first steering groove; the side plate also has a second steering groove hinged to the second upper connecting rod in its center, the second steering groove being horizontal from the center of the side plate and then inclined downwards towards the second upper connecting rod, the second upper connecting rod having a second steering component slidably connected to the second steering groove; the first lower connecting rod is hinged to the side plate near the end of the first lower connecting rod, and the second lower connecting rod is hinged to the side plate near the end of the second lower connecting rod; the first upper connecting rod, the first lower connecting rod, the second upper connecting rod, and the second lower connecting rod rotate simultaneously, while the first steering component and the second steering component slide within the first steering groove and the second steering groove, respectively.

[0011] Furthermore, the side plate is provided with a horizontal first guide groove and a second guide groove. In the hinge of the first upper connecting rod, one end of the hinge member is provided with a first guide member that is slidably connected to the first guide groove. In the hinge of the second upper connecting rod, one end of the hinge member is provided with a second guide member that is slidably connected to the second guide groove.

[0012] Furthermore, a vertical third guide groove is provided on the side plate, and a synchronization plate is slidably connected to the side plate. A third guide member is fixedly connected to the synchronization plate and slidably connected to the third guide groove. A horizontal first synchronization groove and a second synchronization groove are respectively provided at both ends of the synchronization plate. The first steering member is slidably connected to the first synchronization groove, and the second steering member is slidably connected to the second synchronization groove. When the third guide member slides in the third guide groove, the synchronization plate slides, the first steering member slides simultaneously in the first guide groove and the first steering groove, and the second steering member slides simultaneously in the second guide groove and the second steering groove.

[0013] Furthermore, the chassis includes a central body and a pressure block slidably connected to the central body. A hook and a hook reset spring for hook reset are rotatably connected inside the pressure block. A hanging rod that cooperates with the hook is provided inside the central body. The pressure block slides to make the hook engage with the hanging rod and reset the hook reset spring. The hook rotates to disengage the hook from the hanging rod and compress the hook reset spring.

[0014] Furthermore, a guide rod is provided between the central body and the pressure block. One end of the guide rod is fixedly connected to the central body and the other end is slidably connected to the pressure block, or one end is fixedly connected to the pressure block and the other end is slidably connected to the central body. A pressure block return spring is sleeved on the guide rod, and the two ends of the pressure block return spring abut against the central body and the pressure block, respectively.

[0015] The beneficial effects of this utility model are as follows: By setting up an upper folding frame, support rods, a lower folding frame, and a chassis, the upper folding frame, support rods, and lower folding frame form the basic overall frame of the play bed. The chassis is used to control the folding or unfolding of the basic frame, realizing the basic functions of the play bed. By setting reinforcing rods at both ends of the lower connecting rod, the reinforcing rods can strengthen and stabilize the lower connecting rod, providing a certain degree of support and making the lower connecting rod less prone to deformation or displacement. This makes the overall frame of the play bed more stable and improves the structural rigidity of the play bed under dynamic use conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention in its unfolded state.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention in a folded state.

[0018] Figure 3 This is a structural diagram used to illustrate the relationship between the outer and inner tubes.

[0019] Figure 4 This is a schematic diagram of the central hinge in its unfolded state.

[0020] Figure 5 This is a schematic diagram of the central hinge in the folded state.

[0021] Figure 6 A schematic diagram of the structure of the central main body.

[0022] Figure 7 This is a schematic diagram of the structure of the pressure block. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-7As shown, this utility model provides a play bed, including an upper folding frame, support rods 2, a lower folding frame 3, and a base 4; the upper folding frame includes multiple upper connecting rods 11 that are connected end to end, the upper end of the support rod 2 is hinged to the connection point of two adjacent upper connecting rods 11, and each connection point is hinged to a support rod 2, the lower end of the support rod 2 is hinged to the lower folding frame 3; the lower folding frame 3 includes a number of lower connecting rods 31 equal to the number of support rods 2, the lower end of each support rod 2 is hinged to one end of a lower connecting rod 31, and the lower connecting rod 31 is hinged to the base 4 at the end away from the support rod 2; both ends of the lower connecting rod 31 are hinged to reinforcing rods 5.

[0025] The upper folding frame includes four upper connecting rods 11 connected end to end. The upper connecting rods 11 vary in length, and the four upper connecting rods 11 form a rectangle. There are four support rods 2, which support the rectangle formed by the upper connecting rods 11. There are four lower connecting rods 31, which are connected by a chassis 4.

[0026] The upper connecting rod 11 includes a first connecting rod 111 and a second connecting rod 112. The first connecting rod 111 includes a first upper connecting rod 1111 and a first lower connecting rod 1112, which are arranged vertically and of equal length. The second connecting rod 112 includes a second upper connecting rod 1121 and a second lower connecting rod 1122, which are arranged vertically and of equal length. A middle hinge 6 is provided between the first connecting rod 111 and the second connecting rod 112 of the same upper connecting rod 11, and the first connecting rod 111 and the second connecting rod 112 of the same upper connecting rod 11 are hinged through the middle hinge 6. An upper hinge 7 is provided between the first connecting rod 111 and the second connecting rod 112 of adjacent upper connecting rods 11, and the first connecting rod 111 and the second connecting rod 112 of adjacent upper connecting rods 11 are hinged through the upper hinge 7. A lower hinge 8 is provided between the support rod 2 and the lower connecting rod 31. The upper end of the support rod 2 is hinged to the upper hinge 7, and the lower end is hinged to the lower hinge 8. One end of the lower connecting rod 31 is hinged to the lower hinge member 8, and the other end is hinged to the chassis 4.

[0027] When the play bed is folded, the base 4 rises, pulling the lower connecting rod 31 inward. The end of the lower connecting rod 31 connected to the base 4 rotates upward, pulling the lower end of the support rod 2 inward, causing the lower end of the support rod 2 to tilt inward and the upper end outward. This presses the upper connecting rod 11 down from the middle, causing the middle hinge 6 to descend. The first connecting rod 111 and the second connecting rod 112 of the same upper connecting rod 11 move closer together, and the four support rods 2 also move closer together, thus achieving the folding of the play bed. Conversely, when the play bed is unfolded, the base 4 descends, pushing the lower connecting rod 31 outward. The end of the lower connecting rod 31 connected to the base 4 rotates downward, pushing the lower end of the support rod 2 outward, causing the lower end of the support rod 2 to tilt outward and the upper end inward. This lifts the upper connecting rod 11 from the middle, causing the middle hinge 6 to rise. The first connecting rod 111 and the second connecting rod 112 of the same upper connecting rod 11 move away from each other, and the four support rods 2 also move away from each other, thus achieving the unfolding of the play bed.

[0028] The lower connecting rod 31 includes an outer tube 311 and an inner tube 312 sleeved inside the outer tube 311. Both ends of the outer tube 311 are hinged to the lower hinge member 8 and the base plate 4, respectively. The inner tube 312 is slidably connected to the middle of the outer tube 311, slightly off-center from the base plate 4. Both ends of the inner tube 312 are provided with pivots 313 hinged to the reinforcing rod 5. The outer tube 311 has through slots 3111 at both ends of the inner tube 312. The pivots 313 pass through the through slots 3111 and can slide on them. The reinforcing rod 5 includes a pair of reinforcing single rods 51, each hinged to both sides of the inner tube 312, providing reinforcement and fixation to the lower connecting rod 31 from both sides. The end of the reinforcing rod 5 furthest from the lower connecting rod 31 is hinged to the lower hinge member 8 or the base plate 4. The reinforcing rod 5 is hinged downwards from the middle of the lower connecting rod 31 towards both ends, below the lower connecting rod 31.

[0029] When the play bed is folded, the inner end of the lower connecting rod 31 rotates upward, causing the rotating shaft 313 to slide closer to the lower hinge 8 within the through groove 3111, which in turn causes the inner tube 312 to slide in the same direction. Conversely, when the play bed is unfolded, the inner end of the lower connecting rod 31 rotates downward, causing the rotating shaft 313 to slide closer to the chassis 4 within the through groove 3111, which in turn causes the inner tube 312 to slide in the same direction.

[0030] This invention features an upper folding frame, support rod 2, a lower folding frame 3, and a base 4. These components form the basic frame of the play bed, while the base 4 controls the folding and unfolding of the frame, enabling the play bed to perform its basic functions. Reinforcing rods 5 are installed at both ends of the lower connecting rod 31. These reinforcing rods 5 strengthen and stabilize the lower connecting rod 31, providing it with support and preventing deformation or displacement. This enhances the overall stability of the play bed's frame and improves its structural rigidity under dynamic usage conditions.

[0031] In this embodiment, there are four upper connecting rods 11, four support rods 2, and four lower connecting rods 31. In other embodiments, the number of upper connecting rods 11, four support rods 2, and four lower connecting rods 31 can be changed as needed, such as three, five, or six, and is not limited to four. In principle, it is sufficient to achieve folding and unfolding.

[0032] In one specific embodiment, the play bed also includes two auxiliary rods 9, which are parallel to the shorter upper connecting rod 11. One end of each auxiliary rod 9 is hinged to the base 4, and the other end is bent downwards for support on the ground. When the play bed is folded, the auxiliary rods 9 are retracted between the support rods 2 as the base 4 rises. When the play bed is unfolded, the auxiliary rods 9 open outwards. The auxiliary rods 9 provide support for the play bed, further enhancing its structural strength. Different numbers of auxiliary rods 9 can be provided in other embodiments.

[0033] In one specific embodiment, the middle hinge member 6 includes two side plates 61 connected at their tops, one inner and one outer. A first steering groove 611, hinged to the first upper connecting rod 1111, is formed in the middle of each side plate 61. The first steering groove 611 extends horizontally from the middle of the side plate 61 and then slopes downwards towards the first upper connecting rod 1111. The first upper connecting rod 1111 is provided with a first steering member 62 slidably connected to the first steering groove 611. Specifically, the first steering groove 611 includes a horizontal first slot 6111 and a downwardly sloping first groove 6112 towards the first upper connecting rod 1111. The first slot 6111 and the first sloping groove 6112 are connected, with the first slot 6111 closer to the middle of the side plate 61 and connected to the upper end of the first sloping groove 6112. A second steering groove 612, hinged to the second upper connecting rod 1121, is also provided in the middle of the side plate 61. The second steering groove 612 is horizontal from the middle of the side plate 61 and then slopes downward toward the second upper connecting rod 1121. The second upper connecting rod 1121 is provided with a second steering component 63 slidably connected to the second steering groove 612. Specifically, the second steering groove 612 includes a horizontal second slot 6121 and a downward sloping second groove 6122 toward the second upper connecting rod 1121. The second slot 6121 and the second sloping groove 6122 are connected. The second slot 6121 is closer to the middle of the side plate 61 and is connected to the upper end of the second sloping groove 6122. The first lower connecting rod 1112 is hinged to a corner of the side plate 61 near the first lower connecting rod 1112, and the second upper connecting rod 1121 is hinged to a corner of the side plate 61 near the second upper connecting rod 1121. The first upper connecting rod 1111, the first lower connecting rod 1112, the second upper connecting rod 1121 and the second lower connecting rod 1122 rotate simultaneously, while the first steering component 62 and the second steering component 63 slide in the first steering groove 611 and the second steering groove 612 respectively.

[0034] When the play bed is folded, the first upper connecting rod 1111 and the second upper connecting rod 1121 extend outward, causing the first steering component 62 to slide from the first slot 6111 to the first inclined slot 6112 and the second steering component 63 to slide from the second slot 6121 to the second inclined slot 6122. At the same time, the first lower connecting rod 1112 and the second lower connecting rod 1122 rotate. During the sliding process, the hinge 6 of the first steering component 62 and the second steering component 63 descends until they reach the lowest point, at which point the first steering component 62 and the second steering component 63 slide to the lower end of the first inclined slot 6112 and the second inclined slot 6122, respectively. Conversely, when the play bed is unfolded, the first upper connecting rod 1111 and the second upper connecting rod 1121 retract inward, causing the first steering member 62 to slide from the first inclined groove 6112 to the first locking groove 6111, and the second steering member 63 to slide from the second inclined groove 6122 to the second locking groove 6121. Simultaneously, the first lower connecting rod 1112 and the second lower connecting rod 1122 rotate, and the hinge member 6 rises during the sliding process of the first steering member 62 and the second steering member 63 until they reach their lowest point, at which point the first steering member 62 and the second steering member 63 slide into the first locking groove 6111 and the second locking groove 6121, respectively. After the first steering member 62 and the second steering member 63 slide into the first locking groove 6111 and the second locking groove 6121, respectively, the first upper connecting rod 1111 and the second upper connecting rod 1121 rotate to a horizontal position and can no longer rotate, thus locking the first upper connecting rod 1111 and the second upper connecting rod 1121 and keeping the play bed in the unfolded state.

[0035] In one specific embodiment, the side plate 61 has a horizontal first guide groove 613 and a second guide groove 614. The first guide groove 613 is located at one corner of the side plate 61 near the first upper connecting rod 1111, and the second guide groove 614 is located at one corner of the side plate 61 near the second upper connecting rod 1121. One end of the hinge member 6 of the first upper connecting rod 1111 is provided with a first guide member 64 slidably connected to the first guide groove 613, and one end of the hinge member 6 of the second upper connecting rod 1121 is provided with a second guide member 65 slidably connected to the second guide groove 614. When the first steering member 62 and the second steering member 63 slide within the first steering groove 611 and the second steering groove 612 respectively, the first guide member 64 and the second guide member 65 slide within the first guide groove 613 and the second guide groove 614 respectively. The cooperation between the first guide member 64 and the first guide groove 613, and the cooperation between the second guide member 65 and the second guide groove 614, enables the first steering member 62 and the second steering member 63 to slide more smoothly, thereby facilitating the rotation of the first upper connecting rod 1111 and the second upper connecting rod 1121, and thus facilitating the folding and unfolding of the play bed.

[0036] In one specific embodiment, a vertical third guide groove 615 is formed in the middle of the side plate 61. A synchronization plate 66 is slidably connected to the side plate 61, and two upper and lower third guide members 67 are fixedly connected to the synchronization plate 66 and slidably connected to the third guide groove 615. A horizontal first synchronization groove 661 and a second synchronization groove 662 are formed at both ends of the synchronization plate 66, respectively. A first steering member 62 is slidably connected to the first synchronization groove 661, and a second steering member 63 is slidably connected to the second synchronization groove 662. When the third guide member 67 slides within the third guide groove 615, the synchronization plate 66 slides, the first steering member 62 simultaneously slides within the first synchronization groove 661 and the first steering groove 611, and the second steering member 63 simultaneously slides within the second synchronization groove 662 and the second steering groove 612. Specifically, when the first steering component 62 and the second steering component 63 slide from their respective slots to their respective inclined slots, both the first steering component 62 and the second steering component 63 slide from the inside to the outside of the synchronization plate 66. The third guide component 67 slides downward in the third guide groove 615, and the synchronization plate 66 also slides downward. The same applies when the first steering component 62 and the second steering component 63 slide in opposite directions. The synchronization plate 66 links the first steering component 62 and the second steering component 63, which helps to ensure the synchronous sliding of the first steering component 62 and the second steering component 63. This also helps to ensure the synchronous rotation of the first upper connecting rod 1111 and the second upper connecting rod 1121, thereby facilitating smoother folding and unfolding of the play bed.

[0037] In one specific embodiment, the chassis 4 includes a central body 41, with a pressure block 42 slidably connected to the top center of the central body 41. The pressure block 42 can be pressed or released on the central body 41. Two guide rods 43 are symmetrically arranged between the central body 41 and the pressure block 42 about the central axis of the pressure block 42. The upper end of the guide rod 43 is fixedly connected to the pressure block 42, and the lower end passes through and is slidably connected to the central body 41, and has a limiting end. A pressure block return spring 44 is sleeved on the guide rod 43, and the two ends of the pressure block return spring 44 abut against the central body 41 and the pressure block 42 respectively. When the pressure block 42 is pressed, the pressure block return spring 44 is compressed, and the pressure block 42 is pressed down; when the pressure block 42 is released, the pressure block return spring 44 is reset, and the pressure block 42 is released, thereby realizing the sliding connection between the central body 41 and the pressure block 42, and the pressure block 42 will not slide out of the central body 41 after sliding. In other embodiments, the upper end of the guide rod 43 can be inserted through and slidably connected to the pressure block 42, and the lower end can be fixedly connected to the central body 41, which can also achieve the sliding connection between the central body 41 and the pressure block 42.

[0038] A hook 45 and a hook return spring 46 for resetting the hook 45 are rotatably connected in the middle of the pressure block 42. The top of the hook 45 rotates, and the upper end of the hook return spring 46 abuts against the pressure block 42, while the lower end abuts against one side of the top of the hook 45. A hanging rod 47 for engaging the hook 45 is transversely inserted inside the central body 41. The hook 45 can hook onto the hanging rod 47. When the hook 45 is hooked onto the hanging rod 47, the hook return spring 46 is in its natural state; when the hook 45 is not hooked onto the hanging rod 47, the hook return spring 46 is in its compressed state. Pressing the pressure block 42 causes it to slide, allowing the hook 45 to slide along the outer wall of the hanging rod 47 and then hook onto the hanging rod 47, resetting the hook return spring 46. Rotating the hook 45 compresses the hook return spring 46, disengaging the hook 45 from the hanging rod 47, and then allowing the hook 45 to slide along the outer wall of the hanging rod 47 and abut against it. Preferably, a webbing can be connected to the hook 45, with the webbing extending out of the pressure block 42. Pulling the webbing will cause the hook 45 to rotate and lift the base 4, making the play bed more convenient to use.

[0039] When folding the play bed, pulling the webbing rotates hook 45, disengaging it from the hanging rod 47. Hook return spring 46 compresses, pressing block return spring 44 returns to its original position, pressing block 42 springs up, unlocking the base 4 and lifting it, allowing the play bed to fold. Conversely, when unfolding the play bed, pressing pressing block 42 compresses pressing block return spring 44, resetting hook return spring 46, engaging hook 45 with hanging rod 47, locking the base 4, and pressing it down, allowing the play bed to unfold. Folding or unfolding the play bed by pressing pressing block 42 or rotating hook 45 is convenient and quick, and the unfolded state is more stable.

[0040] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A play bed, characterized in that: The system includes an upper folding frame, support rods, a lower folding frame, and a chassis. The upper folding frame comprises multiple upper connecting rods connected end-to-end. The upper end of each support rod is hinged to the connection point of two adjacent upper connecting rods, and a support rod is hinged to each connection point. The lower end of each support rod is hinged to the lower folding frame. The lower folding frame comprises lower connecting rods of equal number to the support rods. The lower end of each support rod is hinged to one end of a lower connecting rod, and the end of each lower connecting rod away from the support rod is hinged to the chassis. Reinforcing rods are hinged to both ends of each lower connecting rod.

2. The play bed according to claim 1, characterized in that: The lower connecting rod includes an outer tube and an inner tube sleeved inside the outer tube and slidably connected to the outer tube. The two ends of the outer tube are respectively hinged to the lower connecting rod and the chassis. The two ends of the inner tube are provided with a rotating shaft hinged to the end of the reinforcing rod away from the lower hinge or the chassis. A through groove is opened on the outer tube, and the rotating shaft is slidably connected to the through groove.

3. A play bed according to claim 1, characterized in that: It also includes an auxiliary rod, one end of which is hinged to the chassis.

4. A play bed according to any one of claims 1-3, characterized in that: It also includes an upper hinge and a lower hinge. Adjacent upper connecting rods are hinged to each other through the upper hinge, the upper connecting rod and the support rod are hinged to each other through the upper hinge, and the lower connecting rod and the support rod are hinged to each other through the lower hinge.

5. A play bed according to claim 4, characterized in that: It also includes a middle hinge member. The upper connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod of the same upper connecting rod are hinged together by the middle hinge member. The first connecting rod and the second connecting rod of adjacent upper connecting rods are hinged together by the upper hinge member.

6. A play bed according to claim 5, characterized in that: The first connecting rod includes a first upper connecting rod and a first lower connecting rod, and the second connecting rod includes a second upper connecting rod and a second lower connecting rod. The middle hinge includes a side plate, and a first steering groove hinged to the first upper connecting rod is formed in the middle of the side plate. The first steering groove is horizontal from the middle of the side plate and then slopes downward toward the first upper connecting rod. The first upper connecting rod is provided with a first steering component slidably connected to the first steering groove. A second steering groove hinged to the second upper connecting rod is also formed in the middle of the side plate. The second steering groove is horizontal from the middle of the side plate and then slopes downward toward the second upper connecting rod. The second upper connecting rod is provided with a second steering component slidably connected to the second steering groove. The first lower connecting rod is hinged to the side plate near the end of the first lower connecting rod, and the second lower connecting rod is hinged to the side plate near the end of the second lower connecting rod. The first upper connecting rod, the first lower connecting rod, the second upper connecting rod, and the second lower connecting rod rotate simultaneously, while the first steering component and the second steering component slide within the first steering groove and the second steering groove, respectively.

7. A play bed according to claim 6, characterized in that: The side plate is provided with a horizontal first guide groove and a second guide groove. One end of the hinge of the first upper connecting rod is provided with a first guide member that is slidably connected to the first guide groove. One end of the hinge of the second upper connecting rod is provided with a second guide member that is slidably connected to the second guide groove.

8. A play bed according to claim 7, characterized in that: A vertical third guide groove is provided on the side plate, and a synchronization plate is slidably connected to the side plate. A third guide member is fixedly connected to the synchronization plate and slidably connected to the third guide groove. A horizontal first synchronization groove and a second synchronization groove are respectively provided at both ends of the synchronization plate. A first steering member is slidably connected to the first synchronization groove, and a second steering member is slidably connected to the second synchronization groove. When the third guide member slides in the third guide groove, the synchronization plate slides, and the first steering member slides simultaneously in the first guide groove and the first steering groove, and the second steering member slides simultaneously in the second guide groove and the second steering groove.

9. A play bed according to claim 1, characterized in that: The chassis includes a central body and a pressure block slidably connected to the central body. A hook and a hook reset spring for hook reset are rotatably connected inside the pressure block. A hanging rod that cooperates with the hook is provided inside the central body. The pressure block slides to make the hook engage with the hanging rod and reset the hook reset spring. The hook rotates to disengage the hook from the hanging rod and compress the hook reset spring.

10. A play bed according to claim 9, characterized in that: A guide rod is provided between the central body and the pressure block. One end of the guide rod is fixedly connected to the central body and the other end is slidably connected to the pressure block, or one end is fixedly connected to the pressure block and the other end is slidably connected to the central body. A pressure block return spring is sleeved on the guide rod, and the two ends of the pressure block return spring abut against the central body and the pressure block, respectively.

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