TWI906132B - Bed frame structure - Google Patents

Abstract

The present invention discloses a support leg structure including: a bottom bar; a cross bar connected to the bottom bar; a support leg rotatably connected to the bottom bar to convert between a folded state and an unfolded state; and a sliding assembly, one end of the sliding component movably disposed at the cross bar, and the other end of the sliding component pivotally connected to the support leg. The sliding assembly moves along the cross bar to drive the support leg to rotate and fold. The sliding assembly includes a locking member configured to engage with the cross bar. Through operating the locking member to disengage from the cross bar, the sliding assembly is movable along the cross bar. The invention also discloses a bed frame structure.

Description

Bed frame structure

This invention relates to the field of cribs, and more particularly to a bed frame structure.

A crib is a baby product provided for infants to rest, offering convenience for caregivers. Currently, there are many cribs on the market with different shapes, structures, and folding principles. Conventional crib frames have complex structures. Folding existing crib frames involves numerous steps, and the folded frame remains relatively large, making them inconvenient to carry and transport. Furthermore, the numerous joints and complex structure of existing crib frames make them prone to jamming and wear, causing considerable trouble for users, reducing the crib frame's performance, and creating numerous inconveniences for users.

Therefore, there is an urgent need for a simple bed frame structure.

A support foot structure according to the present invention includes: a base bar; a crossbar connected to the base bar; a support foot rotatably connected to the base bar to switch between a folded state and an unfolded state; and a sliding component, one end of which is movably disposed on the crossbar and the other end of which is connected to the support foot. The sliding component moves along the crossbar to drive the support foot to rotate and fold. The sliding component includes a locking member that can engage with the crossbar. By operating the locking member to disengage from the crossbar, the sliding component can move along the crossbar.

In one embodiment, the locking element includes a hook portion and a release button portion connected to the hook portion. The hook portion engages with the crossbar, and by driving the release button portion, the hook portion is disengaged from the crossbar.

In one embodiment, the support foot structure also includes a second elastic reset member for repositioning the release button.

In one embodiment, the locking element is slidably engaged with the crossbar, and the locking element is disengaged from the crossbar by pulling the locking element.

In one embodiment, the crossbar includes a first locking position, into which the locking element engages to lock the support leg in the deployed state.

In one embodiment, the crossbar also includes a second locking position, into which the locking element engages to lock the support leg in the folded state.

In one embodiment, the sliding assembly includes a sliding sleeve and a linkage, the sliding sleeve being movably disposed on the crossbar, one end of the linkage being connected to the sliding sleeve, the other end of the linkage being connected to the support foot, and a locking member being disposed on the sliding sleeve.

A bed frame structure according to the present invention includes: a bottom component; an armrest disposed above the bottom component; and two support rods disposed at both ends of the armrest, wherein the support rods can be folded down by moving the armrest.

In one embodiment, each of the support rods includes a first rod portion and a second rod portion, the second rod portion being fixed to the bottom assembly, the first rod portion and the second rod portion being hinged and forming a hinge point, and the first rod portion being foldable relative to the second rod portion.

In one embodiment, the handrail is moved above the hinge to restrict the first rod from being folded, and the handrail is movable between the hinge and the bottom assembly to allow the first rod to be folded.

In one embodiment, the first sections of the two supports are pivoted relative to each other to be folded.

In one embodiment, the support rod further includes a locking member, one end of which is movably disposed on one of the first rod portion and the second rod portion, and the other end of which engages with the other of the first rod portion and the second rod portion. By driving the locking member to move and disengage, the first rod portion can be rotated and folded relative to the second rod portion.

In one embodiment, one of the first rod portion and the second rod portion is provided with a sliding groove, and the engaging member includes a sliding operating portion and an engaging portion connected to the sliding operating portion. The sliding operating portion is movably engaged in the sliding groove, and the engaging portion engages with the other of the first rod portion and the second rod portion.

In one embodiment, a first elastic repositioning member is also included for repositioning the engaging member, the first elastic repositioning member being disposed between one of the first rod portion and the second rod portion and the engaging member.

In one embodiment, the handrail is provided with a handrail locking assembly for locking or unlocking it to the support rod.

The above description is only an overview of the technical content of the present invention. In order to better understand the technical content of the present invention, the following detailed description is provided in conjunction with the preferred embodiments of the present invention and the accompanying drawings.

To facilitate understanding of the present invention, a more comprehensive description of the invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the invention more thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art within the scope of this invention. The terms used herein in the description of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to Figures 1, 3, 5, and 6. An embodiment of the bed frame structure 100 includes a bottom component 1 and two support components 2. The bottom portions of the two support components 2 are respectively fixed to the bottom component 1, and the two support components 2 are spaced apart above the bottom component 1. The support components 2 are foldable; specifically, each support component 2 has hinge points 21 that allow its two ends to rotate and fold. Furthermore, the bed frame structure 100 also includes two armrests 3, which are spaced apart between the two support components 2. The two ends of the armrests 3 are movably mounted on the support components 2. The bottom component 1, the support component 2, and the armrest 3 together form a resting space 4. By sliding down the two armrests 3 to the bottom of the hinge point 21, the two support components 2 can be folded inwards respectively, thereby realizing the folding of the bed frame structure 100. The operation is simple and convenient.

Please refer to Figures 1 and 3. The support component 2 includes support rods 22 and connecting rods 23. A hinge point 21 is located between the two ends of the support rods 22. The connecting rod 23 is fixedly connected between the two support rods 22. In this embodiment, one end of each of the two support rods 22 is fixedly connected to the connecting rod 23, and the other ends of each support rod 22 are fixed to the bottom component 1. Two handrails 3 are respectively movably mounted on the two support rods 22. Specifically, the support rod 22 includes a first rod portion 221 and a second rod portion 222, which are hinged through the hinge point 21. The bottom of the second rod 222 is fixed to the bottom component 1.

Please also refer to Figure 4. The support rod 22 further includes a locking member 223. In this embodiment, one end of the locking member 223 is movably disposed on the first rod portion 221, and the other end of the locking member 223 is engaged with the second rod portion 222. By driving the locking member 223 to move and disengage from the second rod portion 222, the first rod portion 221 can rotate relative to the second rod portion 222 and fold. The first rod portion 221 is provided with a sliding groove 221a, and the top of the second rod portion 222 is provided with an engaging groove 222a. The locking member 223 includes a sliding operating part 223a and an engaging part 223b connected to the sliding operating part 223a. The sliding operation part 223a is movably disposed in the sliding groove 221a, and part of the structure of the sliding operation part 223a is exposed to the outside. The engaging part 223b engages in the engaging groove 222a. By pushing the engaging member 223 upward along the sliding groove 221a, the engaging part 223b of the engaging member 223 disengages from the engaging groove 222a, thereby releasing the first rod part 221 and the second rod part 222, so that the first rod part 221 can rotate inward relative to the second rod part 222 and fold.

Please refer to Figure 4. The sliding operation part 223a is further provided with a groove 223c to facilitate the movement of the sliding operation part 223a. The user can drive the sliding operation part 223a downward by applying force to the groove 223c. Furthermore, the support assembly 2 also includes a first elastic return member 6 for repositioning the engaging member 223. In this embodiment, the first elastic return member 6 is disposed in the sliding groove 221a and is located between the first rod part 221 and the engaging member 223. When the engaging member 223 is pushed upward, the engaging member 223 compresses the first elastic return member 6, causing the engaging part 223b to disengage from the engaging groove 222a. When force is stopped on the engaging member 223, the engaging portion 223b re-engages with the engaging groove 222a under the elastic restoring force of the first elastic return member 6. In this embodiment, the first elastic return member 6 is a compression spring, but it is not limited thereto. It is understood that in another embodiment, one end of the engaging member 223 is movably disposed on the second rod portion 222, while the other end of the engaging member 223 engages with the first rod portion 221.

Please refer to Figures 1 and 2. The bed frame structure 100 further includes two support legs 5, which are spaced apart below the bottom component 1. Specifically, the bottom component 1 includes four bottom rods 11, which are sequentially and fixedly connected to form a closed rectangular structure. The two support legs 5 are respectively connected to two opposite bottom rods 11, and the second rod portion 222 is fixed to the bottom rod 11. In this embodiment, the support legs 5 are hinged to the bottom rods 11, and the support legs 5 can rotate inward relative to the bottom rods 11 to fold up, thereby realizing the folding of the bed frame structure 100. Furthermore, the bottom component 1 also includes crossbars 12 and sliding components 13. A crossbar 12 is connected between two opposing bottom bars 11. One end of a sliding component 13 is slidably mounted on the crossbar 12, and the other end of the sliding component 13 is hinged to a support leg 5. The sliding component 13 slides along the crossbar 12, causing the support leg 5 to rotate and fold. Specifically, the sliding component 13 includes a sliding sleeve 131 and a connecting member 132. The sliding sleeve 131 is slidably mounted on the crossbar 12. One end of the connecting member 132 is hinged to the sliding sleeve 131, and the other end of the connecting member 132 is hinged to the support leg 5. The drive sleeve 131 slides along the crossbar 12, thereby driving the linkage 132 to rotate, which in turn causes the linkage 132 to drive the support leg 5 to rotate inward and fold.

As shown in Figure 2, the sliding assembly 13 further includes a locking member 133. The locking member 133 is disposed on the slide sleeve 131 and selectively engages with a positioning portion on the crossbar 12. By operating the locking member 133 to disengage from the positioning portion of the crossbar 12, the slide sleeve 131 can slide along the crossbar 12. Specifically, the locking member 133 includes a hook portion 133a and a release button portion 133b connected to the hook portion 133a. The hook portion 133a selectively engages with the positioning portion of the crossbar 12, and the release button portion 133b is hinged to the slide sleeve 131. By rotating the release button 133b, the hook 133a is rotated and disengaged from the positioning part of the crossbar 12, thereby releasing the slide sleeve 131 and allowing it to move along the crossbar 12. In another embodiment, the locking member 133 can also be slidably engaged with the crossbar 12. By pulling out the locking member 133, the locking member 133 is disengaged from the crossbar 12, allowing the slide sleeve 131 to slide along the crossbar 12.

Please continue referring to Figure 2. The sliding assembly 13 further includes a second elastic return member 7 for repositioning the release button 133b. The second elastic return member 7 is disposed between the release button 133b and the slide sleeve 131. When the release button 133b is pressed and rotated, the release button 133b compresses the second elastic return member 7, causing the hook 133a to rotate and disengage from the crossbar 12, allowing the slide sleeve 131 to slide along the crossbar 12. When the sliding sleeve 131 slides in the reverse direction, the release button 133b rotates under the elastic restoring force of the second elastic return member 7, and drives the hook 133a to rotate, so that the hook 133a re-engages with the crossbar 12. The second elastic return member 7 may be a compression spring, but is not limited thereto.

Please refer to Figures 10 to 13. The crossbar 12 is provided with a positioning portion for positioning the locking member 133. The positioning portion includes a first locking member 121 and a second locking member 122. In this embodiment, the first locking member 121 and the second locking member 122 are square grooves formed on the crossbar 12. When the hook portion 133a of the locking member 133 engages with the first locking member 121, the support leg 5 is locked in an unfolded state relative to the bottom component 1. When the hook portion 133a of the locking member 133 engages with the second locking member 122, the support leg 5 is locked in a folded state relative to the bottom component 1. By rotating the release button 133b, the hook 133a is rotated, causing the hook 133a to disengage from the first locking member 121 or the second locking member 122, thereby releasing the slide sleeve 131. This allows the slide sleeve 131 to slide along the crossbar 12, thereby driving the support leg 5 to rotate through the linkage 132, thus enabling it to unfold or fold.

Please refer to Figures 1, 7 to 9. The support leg 5 includes a support leg body 51 and a telescopic part 52. The upper end of the support leg body 51 is hinged to the bottom component 1, and the telescopic part 52 is movably disposed at the lower end of the support leg body 51. In this embodiment, when the support leg body 51 is rotated inward relative to the bottom component 1 and folded, the telescopic part 52 can be moved by driving it to retract into the support leg body 51, thereby further reducing the volume of the bed frame structure 100 after folding and making it easier to store. Furthermore, the support legs 5 also include casters 53, which are hinged to the telescopic section 52. The entire bed frame structure 100 can be moved by means of the casters 53.

Please refer to Figure 1. The handrail 3 is provided with a handrail locking assembly 31 for locking or unlocking the handrail 3 at the top of the support assembly 2. The handrail locking assembly 31 can adopt existing locking elements. For example, the handrail locking assembly 31 can adopt an existing method of engaging a pressing member, a rotating wheel, a steel wire, and a locking member 133. By pressing the pressing member, the rotating wheel is driven to rotate and pull the steel wire, so that the steel wire pulls the locking member 133 to disengage from the engagement with the first rod portion 221 of the support rod 22, thereby releasing the handrail 3 and allowing the handrail 3 to move downward. The above structure is widely used in children's products such as strollers, so it will not be described in detail here.

The working principle of the bed frame structure 100 is briefly described below, referring to Figures 1 through 9:

When the bed frame structure 100 needs to be folded, the armrest 3 can be driven down to its lowest position below the pivot point 21 of the support rod 22. Then, by pushing the engaging member 223 upward along the sliding groove 221a, the engaging part 223b of the engaging member 223 disengages from the engagement with the second rod part 222, thereby releasing the first rod part 221 and the second rod part 222. Then, the first rod parts 221 on both sides are rotated inward and folded. Next, the release button 133b of the locking member 133 is pressed to rotate the hook part 133a and disengage it from the positioning part of the crossbar 12, thereby releasing the sliding sleeve 131. Then, the sliding sleeves 131 on both sides are driven to move inward along the crossbar 12, thereby driving the support leg 5 to rotate and fold through the linkage 132. Finally, the telescopic part 52 is driven to retract, thereby retracting the telescopic part 52 into the support leg body 51, further reducing the volume of the bed frame structure 100 after folding, making it easier to store.

In summary, since the support components 2 of the bed frame structure 100 are provided with hinge points 21 that allow both ends to rotate and fold, and the two ends of the armrests 3 are movably mounted on the two support components 2, the bed frame structure 100 can be folded down by driving the armrests 3 to slide down to the bottom of the hinge points 21, and then the two support components 2 can be rotated inward and folded. Finally, the support legs 5 on both sides can be rotated inward and folded, thereby realizing the folding of the bed frame structure 100. The folding is simple and convenient, the structure is simple, the production cost is low, and it is suitable for widespread promotion.

Please refer to Figures 14 through 16. According to one embodiment, the bed frame structure 100 includes a bed frame 10 with storage space and support legs 5 for supporting the bed frame 10. In actual use, an infant or toddler can be positioned within the storage space. The support legs 5 are foldable relative to the bed frame 10 and have both an extended and a folded state.

The support leg 5 includes a support portion 331 and a base 350 connected to the support portion 331. The base 350 includes a main body portion 351 and a telescopic portion 52. The telescopic portion 52 is telescopic relative to the main body portion 351 and has an extended state (as shown in Figure 15) and a retracted state (as shown in Figure 16). When the support leg 5 is in the retracted state, the telescopic portion 52 is restricted from changing from the retracted state to the extended state. When the support leg 5 is in the extended state, the telescopic portion 52 can change from the retracted state to the extended state. In other words, when the support leg 5 is in the folded state, the telescopic part 52 is restricted from retracting relative to the main body 351. When the support leg 5 is in the extended state, the telescopic part 52 can extend and retract freely. When not in use, the support leg 5 is folded relative to the bed frame 10, thus restricting the telescopic part 52 from the folded state to the extended state, effectively reducing its space occupation and facilitating storage and transportation. When the support leg 5 is in the extended state, the telescopic part 52 transitions from the folded state to the extended state, making it convenient to use.

It should also be noted that the main body 351 is connected to the support part 331, and both ends of the main body 351 are provided with telescopic parts 52. When the telescopic parts 52 are in the extended state relative to the main body 351, the bed frame structure 100 can be used as a crib. When the bed frame structure 100 is used as a bedside bed, the telescopic parts 52 will retract when they come into contact with the adult bed, so that the telescopic parts 52 are in the retracted state relative to the main body 351, making the bedside bed closer to the adult bed and more convenient to use.

Referring to Figures 14 through 19, the bed frame structure 100 further includes a drive unit 70 (see Figure 22) located on the support legs 5 and a locking mechanism. When the support legs 5 are in the folded state, the drive unit 70 is operated to engage the locking mechanism, thus preventing the telescopic part 52 from changing from the folded state to the extended state. When the support legs 5 are in the extended state, the drive unit 70 unlocks the locking mechanism, allowing the telescopic part 52 to change from the folded state to the extended state. The bed body 10 has sides and a bottom. In one embodiment, when the support legs 5 are folded to the bottom of the bed body 10 and are in the folded state, the drive unit 70 is driven by the bed body 10 to engage the locking mechanism. It should be noted that the design of any part of the bed 10 that drives the driving part 70 to engage the locking mechanism is within the protection scope of this invention. Furthermore, the bed 10 includes a frame 311 and a first part 315 (as shown in Figure 14) located at the bottom of the frame 311. When the support leg 5 is folded to the first part 315 and is in the folded state, the driving part 70 is driven by the first part 315 to engage the locking mechanism. The bed 10 also includes a connecting member 313, one end of which is slidably connected to the first part 315, and the other end of which is connected to the support leg 5. The folding of the support leg 5 and the bed 10 is achieved through the sliding of the connecting member 313. In this embodiment, the frame 311 includes an upper frame 3111, a lower frame 3113, and a plurality of uprights 3115 located between the upper frame 3111 and the lower frame 3113. The first part 315 is located in the lower frame 3113, and the structure enclosed by the lower frame 3113 can be understood as the bottom of the bed 10.

Please refer to Figures 20 to 25. The drive unit 70 has an engaging member 3711. The locking mechanism includes a locking member 355 connected to the telescopic unit 52. The locking member 355 is provided with a positioning member 553. When the telescopic unit 52 is operated and is in the retracted state, since the telescopic unit 52 is fixedly connected to the locking member 355, the telescopic unit 52 drives the locking member 355 to retract towards the fixed part 57, and the positioning member 553 will move closer to the fixed part 57. When the support leg 5 is operated and is in the folded state relative to the bed 10, the drive unit 70 is compressed by the first part 315, and the positioning member 553 engages with the engaging member 3711. When the positioning member 553 engages with the engaging member 3711, the telescopic part 52 remains in a retracted state, meaning it is locked and cannot extend. When the support leg 5 is operated to extend relative to the frame 311, the positioning member 553 and the engaging member 3711 are unlocked. In other words, when the support leg 5 is operated to extend, the first part 315 does not apply pressure to the driving part 70. When the driving part 70 extends, causing the engaging member 3711 and the positioning member 553 to unlock, the telescopic part 52 moves away from the fixed part 57 and extends under the action of the reset part 59.

Please refer to Figures 20 to 25. The locking mechanism further includes a fixing part 57 installed on the main body 351 and a resetting part 59 located between the telescopic part 52 and the fixing part 57. The main body 351 has a hollow structure, and the locking member 355, the fixing part 57, and the resetting part 59 are located within the hollow structure. One end of the locking member 355 is fixedly connected to the telescopic part 52, and the other end of the locking member 355 is slidably disposed with the fixing part 57. Furthermore, the locking member 355 has a sliding part 551, and the fixing part 57 is provided with a sliding member 571 extending into the sliding part 551. The sliding part 551 and the sliding member 571 are in sliding engagement. When the retractable part 52 comes into contact with the adult bed, the retractable part 52, under the influence of external force, overcomes the elasticity of the return part 59 and retracts into the hollow structure of the main body 351, thereby driving the locking member 355 to slide towards the fixed part 57. Under the guidance of the sliding member 571 and the sliding part 551, the retractable part 52 retracts into the main body 351 and is in a retracted state. Furthermore, the fixed part 57 is provided with a first mounting groove 573, the retractable part 52 is provided with a second mounting groove 531, and the return part 59 is located between the first mounting groove 573 and the second mounting groove 531. Specifically, the return part 59 may include, but is not limited to, a spring. In order to facilitate the movement of the bed frame structure 100, the retractable part 52 is provided with a moving part 533.

Referring to Figures 20 to 25, a return member 90 is provided between the fixing part 57 and the driving part 70. The return member 90 tends to drive the driving part 70 away from the fixing part 57. Specifically, the return member 90 may include, but is not limited to, a spring. Furthermore, the driving part 70 includes a driving part body 71 and a driving pin 73 located on the driving part body 71. The body part 351 has a through hole, and the driving part body 71 is located within the hollow structure of the body part 351. In one embodiment, the driving part body 71 and the driving pin 73 are integrally formed to extend service life. When the drive pin 73 extends through the through hole, the support leg 5 is in a folded state, and the first part 315 presses against the drive pin 73. The drive unit body 71 is provided with a first positioning part 713, and the fixing part 57 is provided with a second positioning part 575 that cooperates with the first positioning part 713. The drive unit 70 is compressed by the first part 315, and the second positioning part 575 is located inside the first positioning part 713 to prevent the drive unit 70 from shaking. Specifically, the second positioning part 575 is connected to the slider 571 and is located on the side of the slider 571 facing the drive unit 70. In order to make the first part 315 press against the drive pin 73 more accurately and stably, the body part 351 is provided with a limiting part 513 for positioning the first part 315. The limiting part 513 includes a first limiting part 5131 and a second limiting part 5133 (as shown in Figure 19). The number of limiting parts 513 can be adjusted as needed and is not limited thereto. When the drive pin 73 extends out of the through hole, it will be located between the first limiting part 5131 and the second limiting part 5133. When the support leg 5 is in the folded state, the first part 315 will press against the drive pin 73 very precisely.

Please refer to Figures 27 to 34. The locking member 355 is provided with a resistance structure 80. The telescopic part 52 is operated to drive the sliding member 571 to overcome the resistance structure 80 to move. That is, when an external force is applied to a certain value, the telescopic part 52 can drive the sliding member 571 to pass over the resistance structure 80. In other words, when the telescopic part 52 reaches full extension or full detent, a certain thrust is required for the telescopic part 52 to overcome the resistance structure 80 and thus pass over the resistance structure 80, thereby preventing the telescopic part 52 from extending or detentling arbitrarily. For example, the thrust can be set to, but is not limited to, >50N, in order to pass over the resistance structure 80 and make the telescopic part 52 fully extended, but this is not a limitation, and the thrust can be set according to actual needs. In one embodiment, the resistance structure 80 is located inside the sliding part 551. Specifically, the resistance structure 80 includes a buffer portion 83, which protrudes into the sliding portion 551. When the buffer portion 83 is squeezed by the sliding member 571, the buffer portion 83 will undergo elastic deformation.

Furthermore, the resistance structure 80 also includes a hollow portion 81. The hollow portion 81 is provided on one or both sides of the sliding portion 551 at a position corresponding to the buffer portion 83. When the buffer portion 83 is squeezed by the sliding member 571, the buffer portion 83 elastically deforms in the direction of the hollow portion 81. As shown in Figures 29 to 34, when the telescopic portion 52 transitions between a contracted state and a fully extended state, it needs to overcome the resistance of the resistance structure 80 to retract or expand, preventing the telescopic portion 52 from freely extending or retracting, thus ensuring safety and reliability. The number of resistance structures 80 can be, but is not limited to, one, two, or more, and their structure and shape are not limited to those described in the above embodiments. An external force is applied to the telescopic part 52 to overcome the resistance of the resistance structure 80, which can be done by pushing or pulling. Specifically, in this embodiment, when a thrust is applied in the direction K shown in the figure, Figures 33 and 34 show that the telescopic part 52 is in a retracted state, and the sliding member 571 moves toward the buffer part 83 under the action of the thrust (as shown in Figures 31 and 32). When the thrust overcomes the elasticity of the buffer part 83, it passes over the buffer part 83 and is in a fully extended state (as shown in Figures 19 and 20), but this is not a limitation.

The working principle of the above-mentioned bed frame structure 100 is explained in detail below with reference to Figures 14 to 34:

When the telescopic part 52 is in an extended state relative to the main body 351, the bed frame structure 100 stands stably and can be used as a crib.

When the bed frame structure 100 is to be used as a bedside bed, the bed frame structure 100 is brought close to the adult bed, and the retractable part 52 abuts against the adult bed. Under external force, the retractable part 52 overcomes the elasticity of the reset part 59 and retracts inward into the main body 351, causing the locking member 355 to slide towards the fixed part 57. Under the guiding action of the sliding member 571 and the sliding part 551, the retractable part 52 retracts into the main body 351 and is in a retracted state, making the bed frame structure 100 closer to the adult bed.

When the bed frame structure 100 is not needed, it can be folded up. The operating support legs 5 are folded towards the bed frame 10 to be in the folded state. The first part 315 presses against the drive pin 73, which drives the drive body 71 to overcome the elasticity of the restoring member 90 and move towards the fixed part 57. Then, the telescopic part 52 is retracted, causing the positioning member 553 on the locking member 355 to approach the fixed part 57 until the engaging member 3711 engages with the positioning member 553, locking the telescopic part 52 into the retracted state.

When the bed frame structure 100 needs to be unfolded, the operating support legs 5 are in the unfolded state, and the first part 315 does not apply pressure to the drive unit 70. Under the action of the return member 90, the drive unit 70 extends, causing the locking member 3711 and the positioning member 553 to unlock. At the same time, under the action of the reset part 59, the telescopic part 52 moves away from the fixed part 57 and is in the extended state. By assembling the connecting member 313 and the support legs 5, the bed frame structure 100 can be used normally.

Compared to the prior art, the above-described bed frame structure 100, when not in use, allows the retractable portion 52 to be retracted relative to the main body 351, thus limiting the transition of the retractable portion 52 from the retracted to the extended state, effectively reducing its space occupation and facilitating storage and transportation. When the support legs 5 are in the extended state, the retractable portion 52 transitions from the retracted to the extended state, making it convenient to use. The above description is merely a preferred embodiment of the present invention, and all equivalent variations and modifications made within the scope of the claims of the present invention should be considered within the scope of the present invention.

1: Bottom assembly 2: Support assembly 3: Handrail 4: Resting space 5: Support legs 6: First elastic return component 7: Second elastic return component 10: Bed frame 11: Base rail 12: Crossbar 13: Sliding assembly 21: Linkage point 22: Support rod 23: Connecting rod 31: Handrail locking assembly 51: Support leg body 52: Telescopic part 53: Wheels 57: Fixed part 59: Return part 70: Drive part 71: Drive part body 73: Drive pin 80: Resistance structure 81: Hollow part 83: Cushioning part 90: Restoration component 100: Bed frame structure 121: First locking component 122: Second locking component 131: Sliding sleeve 132: Linking component 133: Locking component 133a: Hook portion 133b: Release button portion 221: First rod portion 221a: Sliding groove 222: Second rod portion 222a: Engaging groove 223: Engaging component 223a: Sliding operating portion 223b: Engaging portion 223c: Groove 311: Frame 313: Connecting component 315: First part 331: Support portion 350: Base 351: Main body 355: Locking component 513: Limiting part 531: Second mounting groove 533: Moving part 551: Sliding part 553: Positioning component 571: Sliding component; 573: First mounting groove; 575: Second positioning part; 713: First positioning part; 3111: Upper frame; 3113: Lower frame; 3115: Column; 3711: Engaging component; 5131: First limiting part; 5133: Second limiting part; K: Indicated direction

Figure 1 is a perspective view of a bed frame structure according to an embodiment. Figure 2 is a perspective view of the sliding component of the bed frame structure shown in Figure 1. Figure 3 is a front view of the bed frame structure shown in Figure 1. Figure 4 is a sectional view of the support rod of the bed frame structure shown in Figure 1. Figure 5 is a schematic diagram of the armrests of the bed frame structure shown in Figure 3 after sliding down to below the hinge point. Figure 6 is a schematic diagram of the first rod of the bed frame structure shown in Figure 5 after it has been folded inward. Figure 7 is a schematic diagram of the support legs of the bed frame structure shown in Figure 6 after they have been folded inward. Figure 8 is a top view of the bed frame structure shown in Figure 7. Figure 9 is a schematic diagram of the retractable portion of the support legs of the bed frame structure shown in Figure 8 after it has been retracted inward. Figure 10 is a perspective view of the bed frame structure shown in Figure 1 with the supporting legs extended. Figure 11 is an enlarged view of point A in Figure 10. Figure 12 is a perspective view of the bed frame structure shown in Figure 1 with the supporting legs folded. Figure 13 is an enlarged view of point B in Figure 12. Figure 14 is a perspective view of a bed frame structure according to an embodiment. Figure 15 is a top view of the bed frame structure shown in Figure 14, with the telescopic part extended relative to the main body. Figure 16 is a top view of the bed frame structure shown in Figure 14, with the telescopic part retracted relative to the main body. Figure 17 is a side view of the bed frame structure shown in Figure 1. Figure 18 is an enlarged view of point A in Figure 17. Figure 19 is a partial enlarged view of the retractable section of the bed frame structure shown in Figure 17 in the retracted state. Figure 20 is a perspective view showing one of the support legs of the bed frame structure shown in Figure 14 in the folded state. Figure 21 is a perspective view showing the connection between the base and the drive unit, with the retractable section in the extended state. Figure 22 is an enlarged view of point B in Figure 21. Figure 23 is a perspective view showing the connection between the base and the drive unit in another state, with the retractable section in the retracted state and the positioning and locking parts engaged. Figure 24 is an enlarged view of point C in Figure 23. Figure 25 is a schematic diagram showing the connection between the base and the drive unit in yet another state, showing the positioning and locking parts unlocked. Figure 26 is an enlarged view of point D in Figure 25. Figure 27 is a side view of the bed frame structure shown in Figure 21 according to another embodiment. Figure 28 is an enlarged view of point E in Figure 27. Figure 29 is a side view of the extension and retraction process of another retractable leg of the bed frame structure shown in Figure 27. Figure 30 is an enlarged view of point F in Figure 29. Figure 31 is a side view of the retractable leg of the bed frame structure shown in Figure 29 in another extended state. Figure 32 is an enlarged view of point G in Figure 31. Figure 33 is a side view of the retractable leg of the bed frame structure shown in Figure 29 in yet another extended state. Figure 34 is an enlarged view of point H in Figure 33.

5: Support legs 52: Telescopic section 100: Bed frame structure 311: Frame 313: Connector 315: First part 331: Support section 350: Base 351: Main body 533: Moving part 3111: Upper frame 3113: Lower frame 3115: Uprights

Claims (9)

A bed frame structure includes: a bed frame having a storage space; a support leg pivotally connected to the bed frame, wherein the support leg includes a support portion and a base connected to the support portion, the base including a main body and a retractable portion retractable relative to the main body; and a locking mechanism including a resistance structure that applies resistance to prevent the retractable portion from extending and retracting arbitrarily; wherein the resistance structure is configured such that when the retractable portion reaches full extension, a pushing force needs to be applied to the retractable portion so that the retractable portion overcomes the resistance structure to pass over it. The bed frame structure as described in claim 1, wherein: the locking mechanism has a sliding portion and a sliding member extending into the sliding portion, and the resistance structure includes a buffer portion protruding within the sliding portion, wherein the buffer portion undergoes elastic deformation when squeezed by the sliding member. The bed frame structure as described in claim 2, wherein: the resistance structure further includes a hollow portion, the hollow portion being disposed on one or both sides of the sliding portion at a position corresponding to the buffer portion, and when the buffer portion is squeezed by the sliding member, the buffer portion undergoes elastic deformation in the direction of the hollow portion. The bed frame structure as described in claim 2, wherein: the locking mechanism includes a locking member connected to the telescopic portion, the locking member having the sliding portion; the main body has a fixing portion, the fixing portion having the sliding member, wherein the telescopic portion slides in cooperation with the sliding member so that the telescopic portion can extend or retract relative to the main body. The bed frame structure as described in claim 1, wherein: the support leg is rotatable relative to the bed body between a folded state and an extended state, the bed frame structure includes a drive unit disposed on the support leg, wherein when the support leg is in the folded state, the drive unit is driven to lock the locking mechanism to restrict the extension portion from transitioning from the retracted state to the extended state; and when the support leg is in the extended state, the drive unit releases the locking mechanism to allow the extension portion to transition from the retracted state to the extended state. The bed frame structure as described in claim 5, wherein: the bed body includes a frame and a first part disposed at the bottom of the frame, the support leg being folded to the first part in the folded state, such that the drive part is driven by the first part to lock the locking mechanism. The bed frame structure as described in claim 6, wherein: the locking mechanism includes a locking member connected to the telescopic portion, and the drive portion includes a latching member, wherein when the support leg is in the folded state, the latching member locks the locking member to hold the telescopic portion in the retracted state; and when the support leg is in the unfolded state, the latching member releases the locking member. The bed frame structure as described in claim 7, wherein: the drive unit includes a drive unit body and a drive pin located on the drive unit body; the locking mechanism further includes a fixing part mounted on the body part; a restoring member is disposed between the fixing part and the drive unit, the restoring member driving the drive unit away from the fixing part; when the support leg is in the folded state, the drive pin is pressed by the first part, and the drive pin drives the drive unit body to move toward the fixing part against the elastic force of the restoring member. The bed frame structure as described in claim 8, wherein: a first positioning part is disposed on the drive part body; a second positioning part cooperating with the first positioning part is disposed on the fixing part; the second positioning part is connected to the fixing part and is located on the side of the fixing part facing the drive part, and when the drive part is driven, the second positioning part is located inside the first positioning part to prevent the drive part from shaking.