TWI838129B - Bed frame structure - Google Patents

Abstract

A bed frame structure includes a bed body having an accommodating space and two support legs capable of supporting the bed body. The support legs are foldable relative to the bed body and have an unfolded state and a folded state. Each support leg includes a support portion and a bottom foot connected to the support portion. The bottom foot includes a body portion and a telescopic portion. The telescopic portion is telescopic relative to the body portion. When the support legs are in the folded state, the telescopic portion can be restrained from stretching and retraction.

Description

Bed frame structure

The present invention relates to the field of cribs, and more particularly to a crib frame structure.

A crib is a baby product for babies to rest, which provides convenience for caregivers to take care of babies. At present, there are many cribs with different shapes, structures and folding principles on the market. The structure of the crib frame in the conventional technology is complex. When folding the existing crib frame, not only are there many folding steps, but the volume of the folded crib frame is still relatively large, which is inconvenient to carry and transport. In addition, the existing crib frame has many joints and a complex structure, which is prone to jamming and wear, causing a lot of trouble for users, reducing the performance of the crib frame, and bringing a lot of inconvenience to users in use.

Therefore, a bed frame structure with a simple structure is urgently needed.

The present invention provides a bed frame structure, which includes a bed body with a storage space and two supporting legs that can support the bed body. The two supporting legs can be folded relative to the bed body and have an unfolded state and a folded state. Each supporting leg includes a supporting part and a base connected to the supporting part. The base includes a main body and a retractable part. The retractable part can be retracted relative to the main body. When the two supporting legs are in the folded state, the retractable part can be restricted from retracting.

In one embodiment, when the two supporting legs are in the unfolded state, the retractable portion can be freely retracted, and the retractable portion has an extended state and a retracted state relative to the main body. When the two supporting legs are in the folded state, the retractable portion is restricted from switching from the retracted state to the extended state. When the two supporting legs are in the unfolded state, the retractable portion switches from the retracted state to the extended state.

In one embodiment, the bed frame structure further includes a driving part and a locking mechanism located on the supporting legs. When the two supporting legs are in a folded state, the driving part is operated to engage the locking mechanism to restrict the telescopic part from switching from the retracted state to the extended state; when the two supporting legs are in an unfolded state, the driving part unlocks the locking mechanism to allow the telescopic part to switch from the retracted state to the extended state.

In one embodiment, the driving portion and the locking mechanism are disposed on the base.

In one embodiment, the two supporting legs are pivotally connected to the bed body.

In one embodiment, when the two supporting legs are folded to the bottom of the bed body and are in the folded state, the driving part is driven by the bed body to engage the locking mechanism.

In one embodiment, the bed body includes a frame and a first part disposed at the bottom of the frame. When the two supporting legs are folded to the first part and are in a folded state, the driving part is driven by the first part to engage the locking mechanism.

In one embodiment, the driving part has a locking member, the locking mechanism includes a locking member connected to the telescopic part, the locking member is provided with a positioning member, the telescopic part is operated in a retracted state to drive the locking member to move, the two supporting legs are operated in a folded state so that the driving part is compressed by the first part to drive the locking member to engage the positioning member; when the two supporting legs are operated in an unfolded state, the positioning member is unlocked from the locking member, and the telescopic part is converted from a retracted state to an extended state.

In one embodiment, the locking mechanism further includes a fixed portion mounted on the main body, one end of the locking member is fixedly connected to the telescopic portion, and the other end of the locking member is slidably arranged with the fixed portion.

In one embodiment, the locking member has a sliding portion, and the fixed portion is provided with a sliding member extending into the sliding portion. Under the action of the sliding member and the guide of the sliding portion, the telescopic portion is retracted into the main body and is in a retracted state.

In one embodiment, the locking mechanism further includes a reset portion located between the telescopic portion and the fixed portion, the main body is a hollow structure, the locking member, the fixed portion and the reset portion are in the hollow structure, the fixed portion is provided with a first mounting groove, the telescopic portion is provided with a second mounting groove, and the reset portion is located between the first mounting groove and the second mounting groove.

In one embodiment, the bed body further includes a connecting member, one end of which is slidably connected to the first part, and the other end of which is connected to the supporting foot.

In one embodiment, a restoring member is provided between the fixing portion and the driving portion.

In one embodiment, the driving part includes a driving part body and a driving pin located on the driving part body, the driving part body has a through hole, the driving part body is located in the hollow structure of the driving part body, the driving pin extends out of the through hole, the two supporting legs are in a folded state, and the first part presses the driving pin.

In one embodiment, the driving part body is provided with a first positioning part, the fixing part is provided with a second positioning part cooperating with the first positioning part, and the driving part is compressed by the first part so that the second positioning part and the first positioning part cooperate with each other for positioning.

In one embodiment, the second positioning portion is connected to the sliding member and is located on a side of the sliding member facing the driving portion.

In one embodiment, a limiting portion is provided on the main body for positioning the first portion.

In one embodiment, the locking member is provided with a resistance structure, and the telescopic portion is operated to drive the sliding member to overcome the resistance structure to move.

In one embodiment, the resistance structure is located within the sliding portion.

In one embodiment, the resistance structure includes a buffer portion, which is disposed in the sliding portion. When the buffer portion is squeezed by the sliding member, the buffer portion undergoes elastic deformation.

In one embodiment, the resistance structure further includes a hollow portion, and the hollow portion is provided at a position corresponding to the buffer portion on one or both sides of the sliding portion. When the buffer portion is squeezed by the sliding member, the buffer portion undergoes elastic deformation in the direction of the hollow portion.

Compared with the known technology, the above-mentioned bed frame structure retracts the retractable part relative to the main body to be in a retracted state when not in use. At the same time, the supporting legs are folded relative to the bed body to be in a folded state, thereby limiting the retractable part from being converted from a retracted state to an extended state, effectively reducing the space it occupies, and facilitating storage and transportation. When the supporting legs are in an extended state, the retractable part is converted from a retracted state to an extended state, which is convenient for use.

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

1: Bottom assembly

2: Support assembly

3: Handrails

4: Resting space

5: Support your feet

6: First elastic reset member

7: Second elastic reset member

10: Bed

11: Bottom bar

12: Crossbar

13: Sliding assembly

21: Hub

22: Support rod

23: Connecting rod

31: Armrest locking assembly

51: Support the foot body

52: Extension and retraction part

53: Travel wheel

57:Fixed part

59: Reset Department

70: Drive Department

71: Drive unit body

73: Drive pin

80: Resistance structure

81: Hollow section

83: Buffer

90:Recovery file

100:Bed frame structure

121: First positioning piece

122: Second locking piece

131: Sliding sleeve

132: Linkage

133: Locking piece

133a: Hook section

133b: Release button

221: First pole

221a: Sliding groove

222: Second pole

222a: snap-fit groove

223: snap-fit parts

223a: Sliding operation unit

223b: snap-fitting part

223c: Groove

311:Framework

313: Connectors

315: Part 1

331: Support part

350: Base

351: Headquarters

355: Locking piece

513: Limiting part

531: Second mounting slot

533: Mobile unit

551: Sliding part

553: Positioning piece

571: Sliding parts

573: First installation slot

575: Second positioning part

713: First positioning part

3111: Upper frame

3113: Lower frame

3115: Pillar

3711: snap-fit parts

5131: First limiter

5133: Second limiter

K: Diagram direction

Figure 1 is a three-dimensional diagram of a bed frame structure according to an embodiment.

Figure 2 is a three-dimensional diagram of the sliding assembly 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 cross-sectional view of the support rods of the bed frame structure shown in Figure 1.

Figure 5 is a schematic diagram of the handrail of the bed frame structure shown in Figure 3 after it slides down to the bottom of the hinge.

Figure 6 is a schematic diagram of the bed frame structure shown in Figure 5 after the first rod is rotated inward and folded.

Figure 7 is a schematic diagram of the bed frame structure shown in Figure 6 after the supporting legs are rotated inward and folded.

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 supporting leg of the bed frame structure shown in Figure 8 after being retracted inward.

Figure 10 is a three-dimensional diagram of the supporting legs of the bed frame structure shown in Figure 1 when they are unfolded.

Figure 11 is an enlarged view of point A in Figure 10.

Figure 12 is a three-dimensional diagram of the supporting legs of the bed frame structure shown in Figure 1 in the folded state.

Figure 13 is an enlarged view of point B in Figure 12.

Figure 14 is a three-dimensional diagram 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 in an extended state relative to the main body.

Figure 16 is a top view of the bed frame structure shown in Figure 14, with the telescopic part being in a retracted state 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 portion of the bed frame structure shown in Figure 17 when it is in the retracted state.

Figure 20 is a three-dimensional diagram showing one of the supporting legs of the bed frame structure shown in Figure 14 in a folded state.

Figure 21 is a three-dimensional diagram showing the connection between the base and the drive unit, with the telescopic unit in the extended state.

Figure 22 is an enlarged view of point B in Figure 21.

Figure 23 is a three-dimensional diagram showing the connection relationship between the base and the driving part in another state, the retractable part is in the retracted state, and the positioning part is engaged with the engaging part.

Figure 24 is an enlarged view of point C in Figure 23.

Figure 25 is a schematic diagram of the connection relationship between the base and the driving part in another state, showing the unlocking of the positioning member and the locking member.

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 another telescopic leg of the bed frame structure shown in Figure 27 during the extension and retraction process.

Figure 30 is an enlarged view of point F in Figure 29.

Figure 31 is a side view of the retractable legs of the bed frame structure shown in Figure 29 in another retracted state.

Figure 32 is an enlarged view of point G in Figure 31.

Figure 33 is a side view of the retractable legs of the bed frame structure shown in Figure 29 in another retracted state.

Figure 34 is an enlarged view of point H in Figure 33.

In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and/or" used herein includes any and all combinations of one or more related listed items.

Please refer to Figures 1, 3, 5 and 6. A bed frame structure 100 of an embodiment includes a bottom assembly 1 and two support assemblies 2. The bottoms of the two support assemblies 2 are respectively fixed to the bottom assembly 1, and the two support assemblies 2 are arranged above the bottom assembly 1 at intervals. The support assemblies 2 can be folded. Specifically, the support assemblies 2 have hinges 21 that can rotate and fold their two ends. Furthermore, the bed frame structure 100 also includes two armrests 3, and the two armrests 3 are arranged between the two support assemblies 2 at intervals. The two ends of the armrests 3 are arranged on the support assemblies 2 so as to be movable up and down. The bottom assembly 1, the support assembly 2 and the armrests 3 together form a rest space 4. The two armrests 3 slide down to the bottom of the hinge 21, so that the two support assemblies 2 can be folded inwards respectively, thereby realizing the folding of the bed frame structure 100, which is simple and convenient to operate.

Please refer to FIG. 1 and FIG. 3 , the support assembly 2 includes a support rod 22 and a connecting rod 23. The hinge 21 is disposed between the two ends of the support rod 22. The connecting rod 23 is fixedly connected between the two support rods 22. In this embodiment, one end of the two support rods 22 is fixedly connected to the connecting rod 23, and the other ends of the two support rods 22 are fixed to the bottom assembly 1. The two handrails 3 are respectively disposed on the two support rods 22 so as to be movable up and down. Specifically, the support rod 22 includes a first rod portion 221 and a second rod portion 222, and the first rod portion 221 and the second rod portion 222 are hinged through the hinge 21. The bottom of the second rod 222 is fixed on the bottom assembly 1.

Please refer to FIG. 4 , the support rod 22 further includes a snap-fitting member 223. In this embodiment, one end of the snap-fitting member 223 is movably disposed on the first rod 221, and the other end of the snap-fitting member 223 is snap-fitted to the second rod 222. By driving the snap-fitting member 223 to move and disengage from the snap-fitting member 222, the first rod 221 can be rotated relative to the second rod 222 and folded. The first rod 221 is provided with a sliding groove 221a, and the top of the second rod 222 is provided with a snap-fitting groove 222a. The snap-fitting member 223 includes a sliding operation portion 223a and a snap-fitting portion 223b connected to the sliding operation portion 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 is engaged with the engaging groove 222a. By pushing the engaging member 223 upward to move along the sliding groove 221a, the engaging part 223b of the engaging member 223 is disengaged from the engaging groove 222a, thereby realizing the release of the first rod part 221 and the second rod part 222, so that the first rod part 221 can be rotated inwardly relative to the second rod part 222 and folded.

Please refer to FIG. 4 , the sliding operation part 223a is further provided with a groove 223c for facilitating the movement of the sliding operation part 223a. The user can drive the sliding operation part 223a to move downward by applying force to the groove 223c of the sliding operation part 223a. Furthermore, the support assembly 2 further includes a first elastic reset member 6 for resetting the engaging member 223. In this embodiment, the first elastic reset member 6 is disposed in the sliding groove 221a and is located between the first rod 221 and the engaging member 223. When the engaging member 223 is pushed upward, the engaging member 223 compresses the first elastic reset member 6, so that the engaging part 223b is disengaged from the engaging groove 222a. When the force applied to the engaging member 223 stops, the engaging portion 223b reengages with the engaging groove 222a under the elastic restoring force of the first elastic reset member 6. In this embodiment, the first elastic reset member 6 is a compression spring, but 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, and the other end of the engaging member 223 is engaged with the first rod portion 221.

Please refer to FIG. 1 and FIG. 2 , the bed frame structure 100 further includes two supporting legs 5, which are arranged at intervals below the bottom assembly 1. Specifically, the bottom assembly 1 includes four bottom bars 11, which are fixedly connected in sequence to form a closed rectangular structure, and the two supporting legs 5 are respectively connected to two opposite bottom bars 11, and the second rod portion 222 is fixed on the bottom bars 11. In this embodiment, the supporting legs 5 are pivotally connected to the bottom bars 11, and the supporting legs 5 can be rotated inward relative to the bottom bars 11 to fold, so as to realize the folding of the bed frame structure 100. Further, the bottom assembly 1 also includes a cross bar 12 and a sliding assembly 13. The crossbar 12 is connected between two opposite bottom bars 11. One end of the sliding assembly 13 is slidably disposed on the crossbar 12, and the other end of the sliding assembly 13 is pivotally connected to the supporting leg 5. The sliding assembly 13 slides along the crossbar 12 to drive the supporting leg 5 to rotate and fold. Specifically, the sliding assembly 13 includes a sliding sleeve 131 and a connecting member 132. The sliding sleeve 131 is slidably sleeved on the crossbar 12. One end of the connecting member 132 is pivotally connected to the sliding sleeve 131, and the other end of the connecting member 132 is pivotally connected to the supporting leg 5. By driving the sliding sleeve 131 to slide along the crossbar 12, the connecting member 132 is driven to rotate, so that the connecting member 132 drives the supporting leg 5 to rotate inward and fold.

As shown in FIG. 2 , the sliding assembly 13 further includes a locking member 133. The locking member 133 is disposed on the sliding sleeve 131 and selectively engages with the positioning portion on the crossbar 12. The locking member 133 is disengaged from the positioning portion of the crossbar 12 by operating so that the sliding 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 pivotally connected to the sliding sleeve 131. By driving the release button 133b to rotate, the hook portion 133a is driven to rotate and disengage from the positioning portion of the crossbar 12, thereby releasing the sliding sleeve 131, so that the sliding sleeve 131 can move along the crossbar 12. In another embodiment, the locking member 133 can also be slidably engaged on the crossbar 12, and the locking member 133 is disengaged from the crossbar 12 by pulling out the locking member 133, so that the sliding sleeve 131 can slide along the crossbar 12.

Please continue to refer to FIG. 2 , the sliding assembly 13 further includes a second elastic reset member 7 for resetting the release button portion 133b. The second elastic reset member 7 is disposed between the release button portion 133b and the sliding sleeve 131. When the release button portion 133b is pressed to rotate, the release button portion 133b compresses the second elastic reset member 7 and drives the hook portion 133a to rotate and disengage from the cross bar 12, so that the sliding sleeve 131 can slide along the cross bar 12. When the sliding sleeve 131 slides in the reverse direction, the release button portion 133b rotates under the elastic restoring force of the second elastic reset member 7, and drives the hook portion 133a to rotate, so that the hook portion 133a re-engages with the crossbar 12. The second elastic reset member 7 can be a compression spring, but is not limited thereto.

As shown in FIGS. 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 is engaged with the first locking member 121, the supporting leg 5 is locked in an extended state relative to the bottom assembly 1. When the hook portion 133a of the locking member 133 is engaged with the second locking member 122, the supporting leg 5 is locked in a folded state relative to the bottom assembly 1. By driving the release button 133b to rotate, the hook 133a is driven to rotate, so that the hook 133a is disengaged from the first latch 121 or the second latch 122, thereby releasing the sliding sleeve 131, so that the sliding sleeve 131 can slide along the crossbar 12, thereby driving the supporting leg 5 to rotate through the linkage 132 to achieve expansion or folding.

Please refer to FIG. 1 and FIG. 7 to FIG. 9. The support leg 5 includes a support leg body 51 and a retractable portion 52. The upper end of the support leg body 51 is pivotally connected to the bottom assembly 1, and the retractable portion 52 is disposed at the lower end of the support leg body 51 so as to be laterally movable. In this embodiment, when the support leg body 51 is rotated inwardly relative to the bottom assembly 1 and folded, the retractable portion 52 can be driven to move, thereby retracting the retractable portion 52 into the support leg body 51, thereby further reducing the volume of the bed frame structure 100 after folding, making it easier to store. Furthermore, the supporting leg 5 further includes a running wheel 53, and the running wheel 53 is pivoted on the telescopic portion 52. The running wheel 53 can be used to drive the entire bed frame structure 100 to move.

Referring to FIG. 1 , the handrail 3 is provided with a handrail locking assembly 31 for locking or releasing the handrail 3 at the top of the support assembly 2. The handrail locking assembly 31 can adopt an existing locking element, for example, the handrail locking assembly 31 can adopt an existing 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 out of 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 baby strollers and other children's products, so it will not be elaborated here.

The specific working principle of the bed frame structure 100 is briefly described below in conjunction with Figures 1 to 9: When the bed frame structure 100 needs to be folded, the armrest 3 can be driven to slide down to the lowest position below the pivot point 21 of the support rod 22. Then, by pushing the engaging member 223 upward to move along the sliding groove 221a, the engaging portion 223b of the engaging member 223 is disengaged from the engaging portion 222, thereby releasing the first rod 221 and the second rod 222. Then, the first rods 221 on both sides are rotated inwards and folded. Next, the release button 133b of the lock 133 is pressed to drive the hook 133a to rotate and disengage from the positioning portion of the crossbar 12, thereby releasing the slide 131. Then, the slides 131 on both sides are driven to move inward along the crossbar 12, thereby driving the supporting leg 5 to rotate and fold through the connecting member 132. Finally, the retractable portion 52 is driven to retract, thereby retracting the retractable portion 52 into the supporting 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 assembly 2 of the bed frame structure 100 is provided with a hinge 21 that allows its two ends to rotate and fold, and the two ends of the armrest 3 are arranged on the two support assemblies 2 so as to be movable up and down, the armrest 3 can be driven to slide down to the bottom of the hinge 21, and then the two support assemblies 2 are rotated inward and folded respectively, and finally the supporting legs 5 on both sides are rotated inward and folded respectively, so as to realize the folding of the bed frame structure 100. The folding is simple and convenient, and the structure is simple, the production cost is relatively low, and it is suitable for wide promotion.

Please refer to Figures 14 to 16. According to one embodiment, the bed frame structure 100 includes a bed body 10 having a storage space and a support leg 5 that can support the bed body 10. When used, the infant can be located in the storage space. The support leg 5 can be folded relative to the bed body 10 and has an unfolded state and a folded state.

The supporting leg 5 includes a supporting portion 331 and a base 350 connected to the supporting portion 331. The base 350 includes a main body 351 and a retractable portion 52. The retractable portion 52 is retractable relative to the main body 351 and has an extended state (as shown in FIG. 15 ) and a retracted state (as shown in FIG. 16 ). When the supporting leg 5 is in the folded state, the retractable portion 52 is restricted from switching from the retracted state to the extended state. When the supporting leg 5 is in the unfolded state, the retractable portion 52 can switch from the retracted state to the extended state. That is to say, when the supporting leg 5 is in the folded state, the retractable portion 52 is restricted from retracting when the operating retractable portion 52 is retracted relative to the main body 351. When the supporting leg 5 is in the unfolded state, the retractable portion 52 can be freely retracted. When it is not needed, the supporting leg 5 is folded relative to the bed body 10, so that the supporting leg 5 is in the folded state, thereby restricting the retractable portion 52 from the retracted state to the extended state, effectively reducing its occupied space, and facilitating storage and transportation. When the supporting leg 5 is in the unfolded state, the retractable portion 52 is converted from the retracted state to the extended state, which is 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 a retractable part 52. When the retractable part 52 is in an extended state relative to the main body 351, the bed frame structure 100 can be used as a baby bed. When the bed frame structure 100 is used as a bedside bed, the retractable part 52 will be retracted when it abuts against the adult bed, so that the retractable part 52 is in a retracted state relative to the main body 351, so that the bedside bed is closer to the adult bed, which is convenient to use.

Please refer to Figures 14 to 19. The bed frame structure 100 also includes a driving portion 70 (refer to Figure 22) and a locking mechanism located on the supporting leg 5. When the supporting leg 5 is in the folded state, the driving portion 70 is operated to engage the locking mechanism to limit the telescopic portion 52 from the retracted state to the extended state. When the supporting leg 5 is in the unfolded state, the driving portion 70 unlocks the locking mechanism to allow the telescopic portion 52 to transition from the retracted state to the extended state. The bed body 10 has a side and a bottom. In one embodiment, when the supporting leg 5 is folded to the bottom of the bed body 10 and is in the folded state, the driving portion 70 is driven by the bed body 10 to engage the locking mechanism. It should be noted that any design of the driving part 70 engaging the locking mechanism driven by any part of the bed 10 falls within the protection scope of the present invention. Furthermore, the bed 10 includes a frame 311 and a first part 315 disposed at the bottom of the frame 311 (as shown in FIG. 14 ). When the supporting leg 5 is folded to the first part 315 and is in a folded state, the driving part 70 is driven by the first part 315 to engage the locking mechanism. The bed 10 further includes a connecting member 313, one end of which is slidably connected to the first part 315, and the other end of the connecting member 313 is connected to the supporting leg 5. The folding of the supporting leg 5 and the bed 10 is achieved by sliding the connecting member 313. In this embodiment, the frame 311 includes an upper frame 3111, a lower frame 3113, and a plurality of columns 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 surrounded by the lower frame 3113 can be understood as the bottom of the bed body 10.

Please refer to Figures 20 to 25, the driving part 70 has a locking member 3711. The locking mechanism includes a locking member 355 connected to the telescopic part 52. The locking member 355 is provided with a positioning member 553. When the telescopic part 52 is operated and is in a retracted state, since the telescopic part 52 is fixedly connected to the locking member 355, the telescopic part 52 drives the locking member 355 to retract toward the fixed part 57, and the positioning member 553 will approach the fixed part 57. When the supporting leg 5 is operated to be in a folded state relative to the bed body 10, the driving part 70 is compressed by the first part 315, and the positioning member 553 is engaged with the locking member 3711. After the positioning member 553 is engaged with the engaging member 3711, the telescopic portion 52 is always in a retracted state, that is, the telescopic portion 52 is locked and cannot be extended. The supporting leg 5 is operated to be in an extended state relative to the frame 311, and the positioning member 553 and the engaging member 3711 are unlocked. In other words, when the supporting leg 5 is operated to be in an extended state, the first part 315 will not apply pressure to the driving portion 70. When the driving portion 70 is extended and drives the engaging member 3711 and the positioning member 553 to unlock, under the action of the reset portion 59, the telescopic portion 52 moves away from the fixed portion 57 and is in an extended state.

Please refer to Figures 20 to 25, the locking mechanism further includes a fixed portion 57 mounted on the main body 351 and a reset portion 59 located between the telescopic portion 52 and the fixed portion 57. The main body 351 is a hollow structure, and the locking member 355, the fixed portion 57 and the reset portion 59 are located in the hollow structure. One end of the locking member 355 is fixedly connected to the telescopic portion 52, and the other end of the locking member 355 is slidably arranged with the fixed portion 57. Further, the locking member 355 has a sliding portion 551, and the fixed portion 57 is provided with a sliding member 571 extending into the sliding portion 551. The sliding portion 551 and the sliding member 571 are slidably matched. When the telescopic part 52 abuts against the adult bed, the telescopic part 52 will overcome the elastic force of the reset part 59 due to external force and retract into the hollow structure of the main body 351, thereby driving the locking member 355 to slide in the direction of the fixed part 57. Under the guidance of the sliding member 571 and the sliding part 551, the telescopic part 52 is retracted in the main body 351 and is in a retracted state. Furthermore, the fixed part 57 is provided with a first mounting groove 573, the telescopic part 52 is provided with a second mounting groove 531, and the reset part 59 is located between the first mounting groove 573 and the second mounting groove 531. Specifically, the reset part 59 may include but is not limited to a spring. In order to more conveniently move the bed frame structure 100, the telescopic part 52 is provided with a moving part 533.

Please refer to Figures 20 to 25, a restoring member 90 is provided between the fixing portion 57 and the driving portion 70. The restoring member 90 has a tendency to drive the driving portion 70 to move in a direction away from the fixing portion 57. Specifically, the restoring member 90 may include but is not limited to a spring. Furthermore, the driving portion 70 includes a driving portion body 71 and a driving pin 73 located on the driving portion body 71. The body portion 351 has a through hole, and the driving portion body 71 is located in a hollow structure of the body portion 351. In one embodiment, the driving portion body 71 and the driving pin 73 are an integrally formed structure to extend the service life. When the driving pin 73 extends out of the through hole, the supporting leg 5 is in a folded state, and the first part 315 presses against the driving pin 73. The driving part 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 driving part 70 is compressed by the first part 315, and the second positioning part 575 is located in the first positioning part 713 to prevent the driving part 70 from shaking. Specifically, the second positioning part 575 is connected to the sliding member 571 and is located on the side of the sliding member 571 facing the driving part 70. In order to make the first part 315 press against the driving pin 73 more accurately and stably, a limiting part 513 for positioning the first part 315 is provided on the main body 351. The limiting portion 513 includes a first limiting portion 5131 and a second limiting portion 5133 (as shown in FIG. 19 ). The number of limiting portions 513 can be adjusted according to needs and is not limited thereto. When the driving pin 73 extends out of the through hole, it will be located between the first limiting portion 5131 and the second limiting portion 5133. When the supporting leg 5 is in the folded state, the first portion 315 will press the driving pin 73 very accurately.

Please refer to FIGS. 27 to 34 , the locking member 355 is provided with a resistance structure 80. The telescopic portion 52 is operated to drive the sliding member 571 to overcome the resistance structure 80 to move, that is, when the applied external force reaches a certain value, the telescopic portion 52 can drive the sliding member 571 to pass over the resistance structure 80. In other words, when the telescopic portion 52 reaches full extension or full extension, a certain thrust is required to enable the telescopic portion 52 to overcome the resistance structure 80 and pass over the resistance structure 80, so as to prevent the telescopic portion 52 from extending or retracting at will. For example, the thrust can be set to, but not limited to, >50N to pass over the resistance structure 80 and enable the telescopic portion 52 to be fully extended, but it is not limited thereto, and the thrust can be set according to actual needs. In one embodiment, the resistance structure 80 is located in the sliding portion 551. Specifically, the resistance structure 80 includes a buffer portion 83, which is protruding from 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 further includes a hollow portion 81. The hollow portion 81 is provided at a position corresponding to the buffer portion 83 on one or both sides of the sliding portion 551. When the buffer portion 83 is squeezed by the sliding member 571, the buffer portion 83 is elastically deformed in the direction of the hollow portion 81. As shown in Figures 29 to 34, when the telescopic portion 52 changes between the retracted state and the fully extended state, it is necessary to overcome the resistance of the resistance structure 80 before it can be folded or unfolded, so that the telescopic portion 52 cannot freely expand and contract, which is safe and reliable. The number of resistance structures 80 can be but is not limited to one, two or more, and its structure and shape are not limited to those described in the above embodiments. The external force is applied to the telescopic portion 52 to overcome the resistance of the resistance structure 80, and the method can be pushing or pulling. Specifically, in this embodiment, when the thrust in the illustrated direction K is used, Figures 33 and 34 show that the telescopic portion 52 is in a retracted state, and under the action of the thrust, the sliding member 571 moves toward the buffer portion 83 (as shown in Figures 31 and 32). When the thrust overcomes the elastic force of the buffer portion 83, it passes over the buffer portion 83 and is in a fully extended state (as shown in Figures 19 and 20), but is not limited thereto.

The working principle of the above-mentioned bed frame structure 100 is specifically described below in conjunction with Figures 14 to 34: when the telescopic portion 52 is in an extended state relative to the main body 351, the bed frame structure 100 will stand stably, and the above-mentioned bed frame structure 100 can be used as a crib.

When the bed frame structure 100 needs to be used as a bedside bed, the bed frame structure 100 is placed against the adult bed, and the retractable portion 52 is in contact with the adult bed. The retractable portion 52 is subjected to external force and overcomes the elastic force of the reset portion 59 to retract toward the main body 351, driving the locking member 355 to slide toward the fixed portion 57. Under the guidance of the sliding member 571 and the sliding portion 551, the retractable portion 52 is retracted into the main body 351 and is in a retracted state, so that the bed frame structure 100 is closer to the adult bed.

When the bed frame structure 100 is not needed, the bed frame structure 100 can be folded. The support leg 5 is operated to be folded toward the bed body 10 to be in the folded state, the first part 315 presses the driving pin 73, and the driving pin 73 drives the driving part body 71 to overcome the elastic force of the restoring part 90 and move toward the fixed part 57, and then the telescopic part 52 is operated to be retracted, driving the positioning part 553 on the locking part 355 to approach the fixed part 57, until the engaging part 3711 is engaged with the positioning part 553, and the telescopic part 52 is locked in the retracted state.

When the bed frame structure 100 needs to be unfolded, the operating support leg 5 is in the unfolded state, and the first part 315 does not press the driving part 70. Under the action of the recovery part 90, the driving part 70 extends, driving the locking part 3711 and the positioning part 553 to unlock. At the same time, under the action of the reset part 59, the telescopic part 52 is far away from the fixed part 57 and is in the extended state. The connecting part 313 and the support leg 5 are assembled so that the bed frame structure 100 can be used normally.

Compared with the prior art, the bed frame structure 100 described above, when not in use, retracts the retractable portion 52 relative to the main body 351 to be in a retracted state. At the same time, by folding the supporting leg 5 relative to the bed body 10, the supporting leg 5 is in a folded state, thereby limiting the retractable portion 52 from being converted to an extended state, effectively reducing its occupied space, and facilitating storage and transportation. When the supporting leg 5 is in an unfolded state, the retractable portion 52 is converted from a retracted state to an extended state, which is convenient to use.

The above is only the preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

5: Support your feet

52: Extension and retraction part

100:Bed frame structure

311:Framework

313: Connectors

315: Part 1

331: Support part

350: Base

351: Headquarters

533: Mobile unit

3111: Upper frame

3113: Lower frame

3115: Pillar

Claims (20)

A bed frame structure includes: a bed body having a storage space; and two supporting legs supporting the bed body, the two supporting legs can be folded relative to the bed body and have an unfolded state and a folded state, each supporting leg includes a supporting portion and a base connected to the supporting portion, the base includes a main body and a retractable portion, the retractable portion can be retracted relative to the main body; the bed frame structure further includes a driving portion and a locking mechanism located on the supporting leg, when the two supporting legs are folded to the bottom of the bed body and are in the folded state, the driving portion can be driven by the bed body to engage the locking mechanism to limit the retractable portion from retracting. As described in claim 1, the bed frame structure, wherein when the two supporting legs are in the unfolded state, the retractable portion can be freely retracted, and the retractable portion has an extended state and a retracted state relative to the main body, when the two supporting legs are in the folded state, the retractable portion is restricted from switching from the retracted state to the extended state, and when the two supporting legs are in the unfolded state, the retractable portion switches from the retracted state to the extended state. The bed frame structure as described in claim 2, wherein when the two supporting legs are in the folded state and the retractable portion is operated and in the retracted state, the driving portion is driven by the bed body to engage the locking mechanism to restrict the retractable portion from being converted from the retracted state to the extended state; when the two supporting legs are in the unfolded state, the driving portion unlocks the locking mechanism to allow the retractable portion to be converted from the retracted state to the extended state. The bed frame structure as described in claim 3, wherein the driving part and the locking mechanism are arranged on the base. The bed frame structure as described in claim 1, wherein the two supporting legs are pivotally connected to the bed body. The bed frame structure as described in claim 1, wherein the bed body comprises a frame and a first part arranged at the bottom of the frame, and when the two supporting legs are folded to the first part and are in the folded state, the driving part is driven by the first part to engage the locking mechanism. The bed frame structure as described in claim 6, wherein the driving part has a locking part, the locking mechanism includes a locking part connected to the telescopic part, the locking part is provided with a positioning part, the telescopic part is operated in the retracted state to drive the locking part to move, the two supporting legs are operated in the folded state so that the driving part is compressed by the first part to drive the locking part to engage the positioning part; when the two supporting legs are operated in the unfolded state, the positioning part and the locking part are unlocked, and the telescopic part is converted from the retracted state to the extended state. The bed frame structure as described in claim 7, wherein the locking mechanism further includes a fixed portion mounted on the main body, one end of the locking member is fixedly connected to the telescopic portion, and the other end of the locking member is slidably arranged with the fixed portion. The bed frame structure as described in claim 8, wherein the locking member has a sliding portion, the fixed portion is provided with a sliding member extending into the sliding portion, and under the action of the sliding member and the guide of the sliding portion, the telescopic portion is retracted into the main body and is in the retracted state. The bed frame structure as described in claim 9, wherein the locking mechanism further includes a reset portion located between the telescopic portion and the fixed portion, the main body is a hollow structure, the locking member, the fixed portion and the reset portion are located in the hollow structure, the fixed portion is provided with a first mounting groove, the telescopic portion is provided with a second mounting groove, and the reset portion is located between the first mounting groove and the second mounting groove. The bed frame structure as described in claim 6, wherein the bed body further comprises a connecting member, one end of which is slidably connected to the first part, and the other end of which is connected to the supporting foot. The bed frame structure as described in claim 8, wherein a recovery member is provided between the fixed portion and the driving portion. The bed frame structure as described in claim 10, wherein the driving part comprises a driving part body and a driving pin located on the driving part body, the body has a through hole, the driving part body is located in the hollow structure of the body, the driving pin extends out of the through hole, the two supporting legs are in the folded state, and the first part presses against the driving pin. As described in claim 13, the bed frame structure, wherein the driving part body is provided with a first positioning part, the fixing part is provided with a second positioning part cooperating with the first positioning part, and the driving part is compressed by the first part so that the second positioning part and the first positioning part cooperate with each other for positioning. The bed frame structure as described in claim 14, wherein the second positioning portion is connected to the sliding member and is located on the side of the sliding member facing the driving portion. The bed frame structure as described in claim 6, wherein the main body is provided with a limit portion for positioning the first portion. A bed frame structure as described in claim 9, wherein the locking member is provided with a resistance structure, and the telescopic portion is operated to drive the sliding member to overcome the resistance structure to move. A bed frame structure as described in claim 17, wherein the resistance structure is located within the sliding portion. The bed frame structure as described in claim 18, wherein the resistance structure includes a buffer portion, the buffer portion is disposed in the sliding portion, and when the buffer portion is squeezed by the sliding member, the buffer portion undergoes elastic deformation. The bed frame structure as described in claim 19, wherein the resistance structure further includes a hollow portion, and the hollow portion is provided at a position corresponding to the buffer portion on one or both sides of the sliding 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.