Bed-in-bed guardrail and folding bed-in-bed
By designing the side rails and switching mechanism of the bed-in-bed guardrail, the problem of insufficient safety during the folding process of the bed-in-bed was solved, and the stable control of the bed rail and the safety of infant use were improved.
Patent Information
- Application Number
- CN202520421845.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing in-bed beds have insufficient safety during folding, and are prone to falling automatically due to gravity, which may cause safety accidents.
A bed railing with a section inside the bed was designed, including a side rail, a railing, and a switching mechanism. The switching mechanism controls the opening and folding of the railing by using the meshing of a drive component, a backstop gear, and a stop gear to prevent it from falling down automatically.
It improves the stability and safety of the bed-in-bed design, prevents the bed rails from falling down and injuring the baby, simplifies operation, and adapts to the needs of babies of different ages and usage scenarios.
Smart Images
Figure CN223860493U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bed-within-a-bed, and more specifically, to a bed-within-a-bed guardrail and a folding bed-within-a-bed. Background Technology
[0002] With increasingly limited living space, foldable furniture is gaining popularity, with the "bed-within-a-bed" design, an innovative space-utilizing solution, attracting widespread attention. A bed-within-a-bed refers to a single bed with a foldable inner bed embedded within it, saving space and offering high flexibility to meet various needs. Current technology has already seen some application and development of bed-within-a-bed designs, enabling multi-functional use in small spaces, such as providing temporary rest areas for children or serving as additional sleeping space.
[0003] However, the lack of safety is a prominent issue in the folding process of existing bed-in-bed technologies. Bed-in-beds typically require manual operation to unfold or fold, involving the linkage of multiple parts. During folding, if the design is unreasonable or the use is improper, the bed-in-bed can easily fall automatically due to gravity, potentially causing safety accidents such as pinching fingers or other body parts. Utility Model Content
[0004] The purpose of this application is to provide a bed-in-bed guardrail and a folding bed-in-bed, which can solve the problem of automatic descent of the bed-in-bed and improve the stability and safety of use.
[0005] In a first aspect, this utility model provides a bed rail within a bed, the bed rail within a bed comprising:
[0006] Bed side rails;
[0007] A bed railing, foldable or foldable relative to the side rail, includes a first horizontal bar, a second horizontal bar, and upright posts. The first and second horizontal bars are spaced apart along the height of the side rail, and the first horizontal bar rotates with the side rail around a first axis perpendicular to the height of the side rail. The second horizontal bar rotates with the side rail around a second axis parallel to the first axis. The upright posts are rotatably connected to both the first and second horizontal bars.
[0008] The switching mechanism includes a driving component, a backstop gear, and an anti-rotation gear. The driving component is mounted on the first horizontal bar. The backstop gear is mounted on the first horizontal bar and has a backstop surface. The backstop gear is located within the driving range of the driving component. The anti-rotation gear is mounted on the fence post and has an anti-rotation surface. The anti-rotation gear and the backstop gear mesh coaxially around a third axis. Under the driving action of the driving component, the anti-rotation surface disengages from the backstop surface.
[0009] In an optional embodiment, both the anti-return gear and the anti-rotation gear are configured as helical gears, and when the bed rail is opened, the anti-return surface engages with the anti-rotation surface.
[0010] In an optional embodiment, the anti-return gear has at least three anti-return surfaces, and the number of anti-rotation surfaces is the same as the number of anti-return surfaces and they correspond one-to-one.
[0011] In an optional embodiment, the anti-return gear has three anti-return surfaces, and the anti-rotation gear has three anti-rotation surfaces. The three sets of anti-return surfaces cooperate with the anti-rotation surfaces to allow the bed railing to open 0°, 45° and 90° relative to the bed side rail, respectively.
[0012] In an optional embodiment, the driving component includes an activating component and a flat pusher component with inclined surfaces. The activating component is mounted on the first horizontal bar. The flat pusher component and the activating component rotate coaxially around a fourth axis. The flat pusher component is provided with a push rod, which passes through the anti-rotation gear. The push rod approaches or moves away from the anti-return gear along the axial direction of the fourth axis. The axial direction of the fourth axis coincides with the axial direction of the third axis.
[0013] In an optional embodiment, the switching mechanism further includes a first elastic element supported between the driving member and the anti-rotation gear.
[0014] In an optional embodiment, the switching mechanism further includes a second elastic element, which is supported between the anti-return gear and the support surface of the first crossbar. The second elastic element is located on the side of the anti-return gear away from the anti-rotation gear, and the support surface is perpendicular to the third axis.
[0015] In an optional embodiment, a quick-release mechanism is also included. The quick-release mechanism includes a first mounting component, a second mounting component, and a quick-release button. The first mounting component is installed on the bed side rail and has a groove. The second mounting component is installed on the bed rail and has a through hole. The quick-release button is installed on the second mounting component and has a protrusion. When the protrusion is pressed, the protrusion passes through the through hole and the groove.
[0016] In an optional embodiment, the quick-release button rotates relative to the fifth axis of the second mounting member. The quick-release mechanism further includes a return member, which is supported by the second mounting member and the quick-release button. The return member is located on one side of the fifth axis, and the protrusion is located on the other side of the fifth axis.
[0017] Secondly, this utility model provides a folding bed-within-a-bed, including a partition curtain and a bed-within-a-bed railing as described in any of the foregoing embodiments, wherein the partition curtain is fitted onto the first and second railings of the bed-within-a-bed railing.
[0018] Compared to existing technologies, the beneficial effects of this application are:
[0019] This application uses the side rails of the bed as supporting elements for the inner bed rails, and then utilizes the folding of the bed rails to free up space for the inner bed rails, making it convenient for caregivers to perform daily care of the infant and activities such as nighttime breastfeeding. Finally, this application uses a switching mechanism to control the opening of the bed rails, preventing the bed rails from automatically falling down and squeezing the infant, thus improving stability and safety. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 Schematic diagrams of the bed rails in some embodiments are shown;
[0022] Figure 2 An exploded view of the switching mechanism in some embodiments is shown;
[0023] Figure 3 An exploded view of the anti-return gear and anti-rotation gear in some embodiments is shown;
[0024] Figure 4 A schematic diagram of the bed rails being fully folded in some embodiments is shown;
[0025] Figure 5 A schematic diagram of the bed rails being partially folded in some embodiments is shown;
[0026] Figure 6 The diagram shows a scenario where the bed rails are fully open in some embodiments;
[0027] Figure 7 An exploded schematic diagram of the quick-release mechanism is shown in some embodiments.
[0028] Explanation of key component symbols:
[0029] 100-Bed side rail; 110-Main frame; 120-Feet; 200-Bed railing; 210-First horizontal rail; 220-Second horizontal rail; 230-Right railing post; 300-Switching mechanism; 310-Driver; 311-Starter; 312-Push component; 320-Check gear; 321-Check surface; 330-Anti-rotation gear; 331-Anti-rotation surface; 340-First elastic component; 350-Second elastic component; 400-Quick release mechanism; 410-First mounting component; 411-Groove; 420-Second mounting component; 421-Through hole; 430-Quick release button; 431-Protrusion; 440-Return component. Detailed Implementation
[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] Example 1
[0036] This embodiment applies to a crib-within-a-bed, which primarily serves two functions: preventing the baby from falling out and facilitating care, including daily infant care and nighttime breastfeeding. In actual use, the crib-within-a-bed is used in conjunction with an existing mattress.
[0037] Please see Figure 1 In response to the above two functions, this embodiment provides a bed rail within a bed, which includes a bed side rail 100, a bed rail 200, and a switching mechanism 300.
[0038] The bed side rail 100, in this embodiment, can be configured to include a main frame 110 and a support leg 120. The main frame 110 and the support leg 120 are fixedly connected and are arranged perpendicularly to each other. In use, the support is inserted into the bottom of the mattress until the main frame 110 is close to the side of the mattress, thereby ensuring that the mattress provides stable support for the bed rail and preventing the bed from tipping over and injuring the baby.
[0039] The bed railing 200 is folded or unfolded relative to the bed side rail 100. The bed railing 200 includes a first horizontal rail 210, a second horizontal rail 220, and a railing upright 230. The first horizontal rail 210 and the second horizontal rail 220 are arranged at intervals along the height direction of the bed side rail 100. The first horizontal rail 210 rotates with the bed side rail 100 around a first axis, which is perpendicular to the height direction of the bed side rail 100. The second horizontal rail 220 rotates with the bed side rail 100 around a second axis, which is parallel to the first axis. The railing upright 230 is rotatably connected to the first horizontal rail 210 and the second horizontal rail 220 respectively.
[0040] When the bed rail 200 is fully opened relative to the bed side rail 100, the bed rail 200 is placed on the mattress. At this time, the bed rail 200, the mattress, and the bed side rail 100 limit the baby's activity space, preventing the baby from falling out of bed and isolating the caregiver outside the bed rail, preventing the caregiver from accidentally injuring the baby when turning over at night, and has a good effect.
[0041] When the crib railing 200 is folded relative to the side rail 100, the crib railing 200 is retracted, opening up the baby's activity space. On the one hand, the baby can move freely towards the center of the bed. At this time, the side rail 100 still serves to prevent the baby from falling out of bed. On the other hand, caregivers can perform daily care for the baby, which is especially convenient for nighttime breastfeeding. After the baby has finished feeding on the mattress in the activity space, the caregiver can simply reopen the crib railing 200 without having to repeatedly pick the baby up and put them down. This helps improve the baby's sleep quality and frees up the caregiver.
[0042] The first axis and the second axis mentioned above are configured as horizontal axes, and both the first axis and the second axis are located on the body frame 110.
[0043] In this embodiment, the first horizontal rail 210 can be defined as the lower horizontal rail, and the second horizontal rail 220 can be defined as the upper horizontal rail. The two horizontal rails are arranged at intervals along the height direction of the bed side rail 100, and the relative position of the first horizontal rail 210 and the bed side rail 100 can be adjusted according to the actual situation, that is, the height of the first horizontal rail 210 is adjustable to adapt to mattresses of different heights. The relative position of the second horizontal rail 220 and the bed side rail 100 can also be adjusted according to the actual situation, that is, the height of the second horizontal rail 220 is also adjustable to meet the needs of infants of different ages.
[0044] The uprights 230 are rotatably connected to the first horizontal bar 210 and the second horizontal bar 220, which means that when the bed railing 200 is folded or opened, the uprights 230, the first horizontal bar 210 and the second horizontal bar 220 form a linkage mechanism, which is simple, convenient and quick to operate.
[0045] Please see Figures 1 to 3 The switching mechanism 300 includes a driving member 310, a backstop gear 320, and an anti-rotation gear 330. The driving member 310 is mounted on the first horizontal bar 210. The backstop gear 320 is mounted on the first horizontal bar 210 and has a backstop surface 321. The backstop gear 320 is located within the driving range of the driving member 310. The anti-rotation gear 330 is mounted on the fence post 230 and has an anti-rotation surface 331. The anti-rotation gear 330 and the backstop gear 320 mesh coaxially around the third axis. Under the driving action of the driving member 310, the anti-rotation surface 331 and the backstop surface 321 disengage.
[0046] In the manufacturing process, a combination of connectors and pipes can be used to improve material utilization. For example, a check gear 320 can be placed inside a connector, and the connector and pipe can be fixed together to form a first horizontal bar 210. Similarly, a deflector gear 330 can be placed inside a connector, and the connector and pipe can be fixed together to form a fence post 230.
[0047] In some embodiments, both the anti-return gear 320 and the anti-rotation gear 330 are configured as helical gears. When the bed rail 200 is opened, the anti-return surface 321 and the anti-rotation surface 331 cooperate, that is, the bed rail 200 is in a one-way anti-rotation state. In other words, when the bed rail 200 is opened downward, the drive component 310 needs to be unlocked. When the bed rail 200 is folded upward, unlocking is not required, and it can be folded directly into place.
[0048] The purpose of requiring unlocking the crib rail 200 is to prevent it from falling freely and injuring the baby, or from the baby accidentally pulling on the crib rail 200 while learning to stand. The purpose of not requiring unlocking the crib rail 200 is that it can be folded into place with one hand, simplifying the caregiver's operation. The caregiver can also use their other hand to soothe the baby, demonstrating a user-friendly and practical design.
[0049] The check gear 320 has at least three check surfaces 321, and the number of anti-rotation surfaces 331 is the same as that of the check surfaces 321 and they correspond one-to-one.
[0050] In this embodiment, the anti-return gear 320 is provided with three anti-return surfaces 321, and the anti-rotation gear 330 is provided with three anti-rotation surfaces 331. The three sets of anti-return surfaces 321 and anti-rotation surfaces 331 cooperate to make the bed railing 200 open 0°, 45° and 90° relative to the bed side railing 100 respectively.
[0051] For ease of explanation and understanding, the opening angle is defined as α.
[0052] Please see Figure 4 When α = 0°, the bed railing 200 is completely folded relative to the bed side rail 100, which is mainly suitable for the baby's daily activities and reduces space occupation.
[0053] Please see Figure 5 When α = 45°, the bed rail 200 is half-folded relative to the bed side rail 100. This is mainly suitable for nighttime breastfeeding. The baby can be fed lying down with their side facing the caregiver. After feeding, the height of the bed rail 200 matches the height of the caregiver's raised hand while lying down. The caregiver can pull the bed rail 200 to reopen without sitting up. The operation is simple and will not easily disturb the sleeping baby.
[0054] Please see Figure 6 When α = 90°, the bed railing 200 is fully open relative to the bed side rail 100, which is mainly used during the baby's sleep to prevent the baby from falling out of bed.
[0055] Please continue reading. Figure 1 and Figure 2The drive unit 310 includes a starter 311 with an inclined plane and a pusher 312. The starter 311 is mounted on the first horizontal bar 210. The pusher 312 rotates coaxially with the starter 311 around the fourth axis. The pusher 312 is provided with a push rod, which passes through the anti-rotation gear 330. The push rod approaches or moves away from the anti-return gear 320 along the axial direction of the fourth axis. The axial direction of the fourth axis coincides with the axial direction of the third axis.
[0056] The switching mechanism 300 also includes a first elastic element 340, which is supported between the driving element 310 and the anti-rotation gear 330. In this embodiment, the first elastic element 340 is configured as a snap ring, which is supported between the pusher 312 and the anti-rotation gear 330.
[0057] The switching mechanism 300 also includes a second elastic element 350, which is supported between the support surface of the check gear 320 and the first crossbar 210. The second elastic element 350 is located on the side of the check gear 320 away from the anti-rotation gear 330, and its support surface is perpendicular to the third shaft. In this embodiment, the second elastic element 350 is configured as a spring.
[0058] After the rotating starter 311 is rotated, the flat pusher 312 moves toward the check gear 320, the first elastic element 340 stretches and stores energy, the push rod pushes the check gear 320 toward the second elastic element 350, the second elastic element 350 compresses and stores energy, at this time the check gear 320 separates from the anti-rotation gear 330, and the unlocking is achieved.
[0059] After the starter 311 is released, the first elastic element 340 returns to its original shape, the pusher 312 moves away from the check gear 320, and the second elastic element 350 also returns to its original shape. The check gear 320 meshes with the anti-rotation gear 330, and the bed railing 200 can be opened.
[0060] Please see Figures 3 to 5 In this embodiment, three sets of anti-return surfaces 321 are set to cooperate with anti-rotation surfaces 331. Therefore, two unlocking operations are required, namely, one unlocking operation when α = 0° and one unlocking operation when α = 45°.
[0061] Please see Figure 2 From the outside, the starting component 311 and the pushing component 312 in this embodiment are both rotating components. The anti-return gear 320, the anti-rotation gear 330, the first elastic component 340 and the second elastic component 350 are all hidden inside the cavity, which greatly reduces the possibility of pinching the baby due to misoperation and greatly improves the safety of this embodiment.
[0062] Please see Figures 1 to 3 Based on the above, this embodiment further explains the working principle of the bed rail in the middle of the bed as follows:
[0063] S100. Push the bed rail 200 upward at any position on the bed rail 200 until the bed rail 200 is completely folded.
[0064] S200. Rotate the starting component 311 to drive the flat push component 312 to move towards the check gear 320. The check gear 320 is subjected to force and separates from the anti-rotation gear 330. The check surface 321 disengages from the anti-rotation surface 331, thereby unlocking.
[0065] S300. After the starter 311 is released, the first elastic element 340 returns to its original shape, the pusher 312 moves away from the check gear 320, and the second elastic element 350 also returns to its original shape, and the check gear 320 meshes with the anti-rotation gear 330.
[0066] S400. Continue to pull down the bed rail 200 to open it to the half-folded position.
[0067] S500. Repeat S200 to S400 to open the bed rail 200 to the fully open position.
[0068] This application uses the bed side rail 100 as a supporting element for the bed rail within the bed, and then uses the folding of the bed rail 200 to release the space of the bed rail within the bed, which facilitates the caregiver's daily care of the baby and activities such as nighttime breastfeeding. Finally, this application uses the switching mechanism 300 to control the opening of the bed rail 200, to prevent the bed rail 200 from falling down automatically and squeezing the baby, thereby improving the stability and safety of use.
[0069] Example 2
[0070] Please see Figure 1 and Figure 7 Based on Embodiment 1, this embodiment is improved in that the bed railing also includes a quick-release mechanism 400. The quick-release mechanism 400 includes a first mounting member 410, a second mounting member 420, and a quick-release button 430. The first mounting member 410 is installed on the bed side rail 100 and has a groove 411. The second mounting member 420 is installed on the bed rail 200 and has a through hole 421. The quick-release button 430 is installed on the second mounting member 420 and has a protrusion 431. When the protrusion 431 is pressed, the protrusion 431 passes through the through hole 421 and the groove 411.
[0071] The quick-release button 430 rotates relative to the second mounting member 420 on the fifth axis. The quick-release mechanism 400 also includes a return member 440, which is supported by the second mounting member 420 and the quick-release button 430. The return member 440 is located on one side of the fifth axis, and the protrusion 431 is located on the other side of the fifth axis.
[0072] In this embodiment, the number of quick-release mechanisms 400 can be set to four, with two quick-release mechanisms 400 installed at both ends of the first horizontal bar 210 and the other two quick-release mechanisms 400 installed at both ends of the second horizontal bar 220. When the bed rail 200 is not needed, the first horizontal bar 210 and / or the second horizontal bar 220 can be removed by pressing the quick-release button 430. At this time, the bed side rail 100 is still retained on the side of the mattress and used as a barrier.
[0073] The bed rail provided in this embodiment is suitable for different age groups and different usage scenarios, and its service life is improved.
[0074] Example 3
[0075] Please see Figure 1 Based on Embodiment 1, this embodiment provides a folding bed-within-a-bed, which includes an isolation curtain (not shown in the figure) and a bed-within-a-bed guardrail as described in the above embodiment. The isolation curtain is fitted onto the first horizontal bar 210 and the first horizontal bar 210 of the bed-within-a-bed guardrail.
[0076] The isolation curtain provides more flexible support for the baby, improving the safety and reliability of this embodiment.
[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A bed rail within a bed, characterized in that, include: Bed side rails; A bed railing that can be folded or unfolded relative to the side rail of the bed. The bed railing includes a first horizontal rail, a second horizontal rail, and railing uprights. The first horizontal rail and the second horizontal rail are spaced apart along the height direction of the side rail. The first horizontal rail rotates with the side rail about a first axis, which is perpendicular to the height direction of the side rail. The second horizontal rail rotates with the side rail about a second axis, which is parallel to the first axis. The railing uprights are rotatably connected to the first horizontal rail and the second horizontal rail, respectively. and The switching mechanism includes a driving component, a backstop gear, and an anti-rotation gear. The driving component is mounted on the first horizontal bar. The backstop gear is mounted on the first horizontal bar and has a backstop surface. The backstop gear is located within the driving range of the driving component. The anti-rotation gear is mounted on the fence post and has an anti-rotation surface. The anti-rotation gear and the backstop gear mesh coaxially around a third axis. Under the driving action of the driving component, the anti-rotation surface disengages from the backstop surface.
2. The bed railing as described in claim 1, characterized in that, Both the anti-return gear and the anti-rotation gear are configured as helical gears. When the bed rail is opened, the anti-return surface and the anti-rotation surface engage.
3. The bed railing as described in claim 2, characterized in that, The anti-return gear has at least three anti-return surfaces, and the number of anti-rotation surfaces is the same as the number of anti-return surfaces and they correspond one-to-one.
4. The bed railing as described in claim 3, characterized in that, The anti-return gear has three anti-return surfaces, and the anti-rotation gear has three anti-rotation surfaces. The three sets of anti-return surfaces cooperate with the anti-rotation surfaces to allow the bed railing to open 0°, 45° and 90° relative to the bed side rail, respectively.
5. The bed railing as described in any one of claims 1 to 4, characterized in that, The driving component includes an activator and a pusher with inclined surfaces. The activator is mounted on the first horizontal bar. The pusher and the activator rotate coaxially around the fourth axis. The pusher is provided with a push rod, which passes through the anti-rotation gear. The push rod moves closer to or away from the anti-return gear along the axial direction of the fourth axis. The axial direction of the fourth axis coincides with the axial direction of the third axis.
6. The bed railing as described in any one of claims 1 to 4, characterized in that, The switching mechanism further includes a first elastic element, which is supported between the driving element and the anti-rotation gear.
7. The bed railing as described in claim 6, characterized in that, The switching mechanism further includes a second elastic element, which is supported between the anti-return gear and the support surface of the first crossbar. The second elastic element is located on the side of the anti-return gear away from the anti-rotation gear, and the support surface is perpendicular to the third axis.
8. The bed railing as described in any one of claims 1 to 4, characterized in that, It also includes a quick-release mechanism, which includes a first mounting component, a second mounting component, and a quick-release button. The first mounting component is installed on the bed side rail and has a groove. The second mounting component is installed on the bed rail and has a through hole. The quick-release button is installed on the second mounting component and has a protrusion. When the protrusion is pressed, the protrusion passes through the through hole and the groove.
9. The bed railing as described in claim 8, characterized in that, The quick-release button rotates relative to the fifth axis of the second mounting member. The quick-release mechanism also includes a return member, which is supported by the second mounting member and the quick-release button. The return member is located on one side of the fifth axis, and the protrusion is located on the other side of the fifth axis.
10. A folding bed with a secondary bed, characterized in that, It includes a partition curtain and a bed rail as described in any one of claims 1 to 9, wherein the partition curtain is fitted over the first and second railings of the bed rail.