Hidden bed frame

Abstract

The invention relates to the technical field of bed frame assembly, and discloses a hidden bed frame which comprises a plurality of sliding blocks, the sliding blocks are slidably connected with the front sides and the rear sides of the interiors of the corresponding first surrounding rods correspondingly, sliding grooves are formed in the front sides and the rear sides of the bottoms of the surrounding rods correspondingly, and connecting blocks are fixedly connected to one sides of the bottoms of the sliding blocks correspondingly; and connecting rods are fixedly connected to the other sides of the bottoms of the multiple sliding blocks correspondingly, supporting rods are rotationally connected to the bottoms of the multiple connecting blocks correspondingly, supporting blocks are rotationally connected to the bottoms of the multiple supporting rods correspondingly, and first eccentric wheels are rotationally connected to the bottoms of the outer walls of the multiple connecting rods correspondingly. The sliding blocks in the first surrounding rod are pushed to slide towards the middle along the sliding grooves, the supporting rods are rotated to enable the supporting blocks to make contact with the ground, supporting is formed, during storage, the handle is reversely rotated for unlocking, the sliding blocks are pulled for resetting, the supporting rods are folded to be attached to the bottom of the first surrounding rod, the storage size is not increased, rapid unfolding and stable locking are achieved, and meanwhile the bed bottom storage space is not affected.

Description

Technical Field

[0001] This invention relates to the field of bed frame assembly technology, and in particular to a concealed bed frame. Background Technology

[0002] A bed frame is a piece of furniture used to provide support for sleep. It is mainly made of wood, metal or composite materials and consists of a frame, support components and bed legs. It is widely used in residential, rental, hotel and multi-functional room settings. It can provide stable support for the mattress, ensure sleep comfort and safety. It is an indispensable basic piece of furniture in the modern living environment, supporting the core needs of daily rest and space utilization.

[0003] Concealed bed frames are a type of bed frame that optimizes space utilization. They typically include a modular frame, a concealed support structure, and detachable connecting parts. They are widely used in small apartments, rentals, and multi-functional rooms where space is limited. Through concealed and modular design, they can reduce space occupation when not in use, while taking into account both sleep support and flexible space utilization. They are the preferred furniture for situations where living space is tight or frequent relocation is required.

[0004] Currently, bed frames on the market use integrated or complex frame structures to ensure stability, resulting in large packaging volume, low container loading capacity, and increased logistics costs. To adapt to transportation and storage needs, existing technologies use multi-component packaging to reduce packaging volume. However, small-package bed frames often excessively simplify the structure by compressing size, reducing support components and weakening connection strength, resulting in weak bed frame support. When users sit on the edge of the bed, the force is concentrated on the edge of the bed, lacking effective support and making it difficult to guarantee long-term stability. Summary of the Invention

[0005] The purpose of this invention is to provide a concealed bed frame that solves the problem of insufficient support along the edge of small-sized bed frames.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A concealed bed frame includes multiple first-stage rails, multiple second-stage rails, multiple connectors, two first-stage crossbeams, and two second-stage crossbeams. Each of the first-stage rails has a support mechanism at its bottom for supporting the edges of the bed frame. Each connector has a connecting mechanism on its inner side for quick assembly of the bed frame. Each of the second-stage rails has a limiting mechanism on one side at its bottom for preventing the mattress from sliding. Each of the first and second-stage crossbeams has a secondary support leg at its bottom. The support mechanism includes multiple sliders, each slider being slidably connected to the front and rear sides of the corresponding inner side of a first-level support rod. Each first-level support rod has a groove on its bottom front and rear sides. Each slider has a connecting block fixedly connected to one side of its bottom, and a connecting rod fixedly connected to the other side of its bottom. Each connecting block has a support rod rotatably connected to its bottom, and a support block rotatably connected to its bottom. Each connecting rod has an eccentric wheel rotatably connected to its bottom outer wall, and a handle is fixedly connected to one side of the outer wall of each eccentric wheel. A positioning component is provided on one side of each support block.

[0007] Through the above technical solution, the inner slider of the first retaining rod slides along the groove, which drives the connecting block and the connecting rod to move. After the support block touches the ground by rotating the support rod, the positioning pin is inserted into the corresponding positioning hole to realize the linkage and fixation of the support block. Then, the handle is turned to drive the eccentric wheel to rotate and squeeze the bottom of the first retaining rod, and the position of the slider is locked by friction. When storing, the support rod can be folded by reversing the operation. Finally, the load-bearing stability of the bed frame edge is enhanced, the support structure can be quickly unfolded and stored, adapting to uneven ground, and the storage volume is not increased after folding, and the storage space under the bed is not affected.

[0008] Preferably, the connecting mechanism includes multiple slide rods, which are slidably connected to the inner left and right ends of the corresponding connectors. Each of the slide rods has a limit groove on the top of one side of its outer wall, and each limit groove has a locking block rotatably connected inside. Each of the slide rods has an eccentric wheel rotatably connected to the other side of its outer wall, and each eccentric wheel rotatably connected to a handle. Each of the first and second rails, the connectors, and the two crossbeams has a sleeve rotatably connected to one side of its inner wall, and each sleeve has a fixing component inside.

[0009] Using the above technical solution, by pinching the pins on both sides of the first or second rail or the first crossbeam, the pins retract into the sleeve to overcome the spring force. After the components slide and connect along the connector, the pins return to their original position with the spring and are inserted into the through hole to complete the initial fixation. Then, the sliding rod passes through the fixing plate, and the locking block falls naturally to initially limit the position. Rotating the second handle drives the second eccentric wheel to rotate and squeeze the connector, so that the locking block is tightly attached to the fixing plate and the eccentric self-locking characteristic prevents loosening. Finally, the main components of the bed frame are quickly positioned and connected, reducing the assembly difficulty.

[0010] Preferably, the limiting mechanism includes multiple fixed rods, the tops of the multiple fixed rods are respectively fixedly connected to the bottom side of the corresponding second surrounding rod, the outer walls of the multiple fixed rods are rotatably connected to rotating rods, the bottom inner sides of the multiple rotating rods are rotatably connected to rotating blocks, the interiors of the multiple rotating blocks are rotatably connected to limiting rods, the bottoms of the multiple fixed rods are threadedly connected to buttons, and the outer walls of the multiple buttons are slidably connected to friction pads.

[0011] Using the above technical solution, the rotating rod is rotated to the direction of the vertical surrounding rod 2 with the fixed rod as the reference. The limiting rod is adjusted to the vertical rotating rod state by the rotating block. The rotating rod is rotated in the opposite direction to make the limiting rod fit against the edge of the mattress. The screw is tightened to squeeze the friction pad and lock the angle of the rotating rod by friction. When storing, the screw is loosened to fold the limiting rod and the rotating rod, which effectively prevents the mattress from sliding. After storage, the structure does not protrude from the edge of the bed frame and does not affect the overall storage and transportation of the bed frame.

[0012] Preferably, the positioning component includes a plurality of positioning pins, each of which is fixedly connected to one side of a corresponding support block. Each of the support blocks has a positioning hole on one side, and the plurality of positioning pins engage with the corresponding positioning holes.

[0013] With the above technical solution, after the support block contacts the ground, the positioning pin on one side of the adjacent support block is precisely inserted into the corresponding positioning hole, so that multiple support blocks form a linkage and fixing structure, which improves the stability and load-bearing capacity of the bed frame edge support.

[0014] Preferably, the plurality of fixing components include a plurality of pins, which are slidably connected to the inner sides of the corresponding sleeves. Each of the plurality of sleeves is provided with a spring, and the two ends of the plurality of springs are fixedly connected to one side of the corresponding pin. Each of the plurality of connectors has through holes at both ends, and one side of each of the plurality of pins is slidably connected to the corresponding through hole.

[0015] The above technical solution allows the pin to be squeezed to overcome the spring force and retract into the sleeve. After the rod or beam is aligned with the connector and connecting piece, the spring returns to its original position and pushes the pin into the corresponding through hole, thus achieving quick positioning and engagement between components without the need for manual alignment of screw holes, simplifying the assembly process.

[0016] Preferably, the connecting mechanism further includes multiple connecting frames, the bottom of each of the multiple connecting frames being fixedly connected to the top of the corresponding secondary support leg, the inner side of each of the multiple connecting frames being slidably connected to the outer side of the corresponding crossbeam one and crossbeam two, and a positioning post being fixedly connected to the bottom of the inner side of each of the multiple connecting frames, the top of each of the multiple positioning posts penetrating the bottom of the corresponding crossbeam one and crossbeam two.

[0017] Through the above technical solution, the positioning post at the bottom of the connecting frame passes through the preset hole at the bottom of the crossbeam, which ultimately realizes the rapid positioning and docking of the crossbeam and the auxiliary support leg, avoids the crossbeam from shifting during assembly, and simplifies the basic frame construction process.

[0018] Preferably, a connecting leg is provided between the two adjacent crossbeams 1 and 2, a connecting piece is fixedly connected to the top of the connecting leg, and a connecting frame 1 is fixedly connected to the front and rear sides of the connecting piece. The adjacent sides of the two crossbeams 1 are slidably connected to the inner left and right ends of the corresponding connecting pieces, and the adjacent sides of the two crossbeams 2 are slidably connected to the inner side of the corresponding connecting frame 1.

[0019] Through the above technical solution, the two crossbeams are slidably connected along the inner side of the connecting piece, and the two crossbeams overlap the inner side of the connecting frame on both sides of the connecting piece, thereby realizing the connection between the crossbeams.

[0020] Preferably, a connecting plate is provided at the bottom of the adjacent side of the front enclosure rod 1 and enclosure rod 2, and a main support leg 1 is provided at the bottom of the two connecting plates. A main support leg 2 is provided at the bottom of the rear enclosure rod 2.

[0021] Through the above technical solution, the connecting plate fixes the first main support leg to the bottom of the first and second front side rails, and fixes the second main support leg to the bottom of the second rear side rail with bolts, thus completing the stable support of the four corners of the bed frame. Together with the auxiliary support legs, it shares the overall weight of the bed frame, thereby improving the upper limit of the bed frame's load-bearing capacity and its anti-shaking ability.

[0022] Preferably, multiple connecting frames are fixedly connected to each of the multiple first-level rails and the second-level beam on their adjacent sides, and a secondary beam is provided on each of the multiple connecting frames on their adjacent sides.

[0023] By using the above technical solution, the secondary beam is connected to the connecting frame 2 between the first rail and the second crossbeam, thereby expanding the support area at the bottom of the mattress, making the mattress bear force evenly, and avoiding local collapse.

[0024] Preferably, one side of each of the two crossbeams is fixedly connected to a fixing plate, and one side of each of the multiple sliding rods passes through a corresponding fixing plate.

[0025] Through the above technical solution, the sliding rod passes through the connector and the corresponding fixing piece, realizing the rapid connection between the first crossbeam and the first wall rod, and the second crossbeam and the second wall rod.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. This invention pushes the inner slider of the first enclosure rod to slide along the groove towards the center, rotates the support rod to make the support block touch the ground, and adjacent support blocks are fixed by the locking pin and the locking hole to form a support. The rotation of the eccentric wheel squeezes the bottom of the first enclosure rod to generate friction and lock the slider to prevent slippage. When storing, turn the handle in the opposite direction to unlock, pull the slider to reset, and the support rod folds and fits against the bottom of the first enclosure rod without increasing the storage volume. It achieves both quick unfolding and stable locking, while the storage space under the bed is not affected.

[0027] 2. This invention uses a connector to connect the first and second enclosure rods. The first crossbeam is connected via a connecting piece. The second crossbeam is initially positioned by overlapping the first connecting frame. Then, the first crossbeam is connected to the first enclosure rod and the second crossbeam is connected to the second enclosure rod via a sliding rod and an eccentric wheel. The secondary support leg is then quickly positioned by passing through the crossbeam via a positioning column. After the basic frame is built, it is reinforced with bolts to complete the assembly, thus improving assembly efficiency.

[0028] 3. This invention involves rotating the rotating rod to two directions perpendicular to the surrounding rod, adjusting the limiting rod to be perpendicular to the rotating rod using a rotating block, then rotating the rotating rod in the opposite direction to make the limiting rod fit against the edge of the mattress, and then tightening the screw to squeeze the friction pad, thereby locking the angle of the rotating rod by friction and completing the limiting of the mattress. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a structural cross-sectional view of the first retaining rod of the present invention; Figure 4 This is a schematic diagram of the support mechanism of the present invention; Figure 5 This is a partial structural breakdown diagram of the present invention; Figure 6 This is a schematic diagram of the connection mechanism of the present invention; Figure 7 This is a cross-sectional view of the second structure of the retaining rod of the present invention; Figure 8 This is a schematic diagram of the secondary support leg structure of the present invention; Figure 9 This is a structural breakdown diagram of the present invention; Figure 10 This is a schematic diagram of the connecting leg structure of the present invention.

[0030] Among them, 1. Barrel 1; 2. Support mechanism; 21. Slider; 22. Slide groove; 23. Connecting block; 24. Support rod; 25. Support block; 26. Connecting rod; 27. Eccentric wheel 1; 28. Handle 1; 29. ​​Positioning component; 291. Positioning pin; 292. Positioning hole; 3. Connecting mechanism; 31. Slide rod; 32. Limiting groove; 33. Locking block; 34. Eccentric wheel 2; 35. Handle 2; 36. Sleeve; 37. Fixing component; 371. Pin; 372. Spring; 3 8. Connecting frame; 39. Positioning post; 4. Limiting mechanism; 41. Fixing rod; 42. Rotating rod; 43. Rotating block; 44. Limiting rod; 45. Screw; 46. Friction pad; 5. Second enclosure rod; 6. First crossbeam; 7. Second crossbeam; 8. Connecting head; 9. Connecting leg; 10. Connecting piece; 11. First connecting frame; 12. Secondary support leg; 13. Through hole; 14. Connecting plate; 15. First main support leg; 16. Second main support leg; 17. Second connecting frame; 18. Secondary beam; 19. Fixing piece. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 The present invention will be further described in detail below.

[0032] This invention provides a concealed bed frame, including multiple first-stage rails 1, multiple second-stage rails 5, multiple connectors 8, two first-stage crossbeams 6, and two second-stage crossbeams 7. The second-stage rails 5, together with the first-stage rails, form the side frame of the bed frame. The second-stage crossbeams 7 and the first-stage crossbeams 6 work together to distribute the pressure on the mattress and enhance the lateral structural stability of the bed frame. Each of the first-stage rails 1 has a support mechanism 2 at its bottom, which supports the edges of the bed frame. Each of the connectors 8 has a connecting mechanism 3 on its inner side, which is used for quick assembly of the bed frame. Each of the second-stage rails 5 has a limiting mechanism 4 at one bottom side, which prevents the mattress from sliding. Each of the two first-stage crossbeams 6 and the second-stage crossbeams 7 has a secondary support leg 12 at its bottom, which is an auxiliary support component that works with the main support leg to share the load. The support mechanism 2 includes multiple sliders 21, which are slidably connected to the front and rear sides of the corresponding inner side of the surrounding rod 1. The sliders 21 slide along the inside of the surrounding rod 1, causing the connecting block 23 and the connecting rod 26 to move synchronously, thereby realizing the unfolding and retraction of the support rod 24. The bottom front and rear sides of the multiple surrounding rods are provided with sliding grooves 22, which restrict the sliding direction of the sliders 21. The bottom side of each slider 21 is fixedly connected to a connecting block 23, which provides a rotation fulcrum for the support rod 24. The bottom other side of each slider 21 is fixedly connected to a connecting rod 26, which, together with the eccentric wheel 27, locks the position of the slider 21. In addition to unlocking, the bottom of multiple connecting blocks 23 is rotatably connected to support rods 24. After the support rods 24 are unfolded, they support the weight of the enclosure rod 1 and transfer it to the ground, enhancing the edge load-bearing capacity. The bottom of multiple support rods 24 is rotatably connected to support blocks 25. The support blocks 25 increase the contact area with the ground and improve the support stability. The bottom of the outer wall of multiple connecting rods 26 is rotatably connected to eccentric wheels 27. The eccentric wheels 27 rotate and press the bottom of the enclosure rod 1, using friction to fix the position of the slider 21 and prevent slippage. The outer wall of multiple eccentric wheels 27 is fixedly connected to one side of each handle 28. The side of multiple support blocks 25 is provided with positioning components 29. The positioning component 29 includes multiple positioning pins 291, which are fixedly connected to one side of the corresponding support block 25. Each side of the support block 25 is provided with a positioning hole 292, and the multiple positioning pins 291 are engaged with the corresponding positioning holes 292. The positioning pins 291 are inserted into the positioning holes 292 to make the adjacent support blocks 25 form a whole, thereby improving the linkage stability of the support mechanism 2. Specifically, during use, the slider 21 inside the enclosure rod 1 can slide along the slide groove 22, causing the connecting block 23 at the bottom and the connecting rod 26 to move synchronously. In the unfolded state, the support rod 24 and the support block 25 are folded at the bottom of the enclosure rod 1. When it is necessary to unfold the support, push the sliders 21 on both sides of the enclosure rod 1 to slide towards the middle, and at the same time rotate the support rod 24 at the bottom of the connecting block 23 until the support block 25 at the bottom of the support rod 24 contacts the ground. At this time, the support blocks 25 on both sides contact each other, and insert the positioning pin 291 into the positioning hole 292, so that multiple support blocks 25 are linked and fixed, thereby forming auxiliary support for the enclosure rod 1. Then, rotate the handle 28 to... The eccentric wheel 27 rotates, and the eccentric wheel 27 is rotatably connected to the bottom of the outer wall of the connecting rod 26. As the eccentric wheel rotates, its outer wall contacts the bottom of the surrounding rod 1 and generates a squeezing force. The friction force locks the position of the slider 21, preventing the slider 21 from sliding back during the support process. When disassembling and storing, turn the handle 28 in the opposite direction, and the eccentric wheel 27 releases the squeezing of the surrounding rod 1. Manually pull the slider 21 to reset it. The support rod 24 folds to the bottom of the surrounding rod 1 with the slider 21 and fits against the outer wall of the surrounding rod 1. It does not increase the storage volume, thus realizing the quick unfolding and stable locking of the bed frame edge support. At the same time, the unfolding and folding will not affect the placement of idle items under the bed.

[0033] The connecting mechanism 3 includes multiple slide rods 31, which are slidably connected to the inner left and right ends of corresponding connectors 8. Each slide rod 31 passes through the fixing plate 19 and the connector 8. A limiting groove 32 is formed on the top of one side of the outer wall of each slide rod 31, providing space for the locking block 33. The locking block 33 is rotatably connected inside each limiting groove 32, restricting the movement of the slide rod 31. An eccentric wheel 34 is rotatably connected to the other side of the outer wall of each slide rod 31. After rotation, the outer wall of the squeeze connector 8 is pushed to move the slide rod 31, so that the locking block 33 is tightly attached to the fixing piece 19. The self-locking characteristic is used to prevent loosening. Handles 35 are fixedly connected to one side of the outer wall of multiple eccentric wheels 34. Sleeves 36 are fixedly connected to one side of the inner side of multiple guardrails 1, multiple guardrails 5, multiple connectors 8, and two crossbeams 6. The sleeves 36 guide the sliding direction of the pin 371 and prevent the spring 372 and the pin 371 from being damaged by external force. Fixing components 37 are set inside the multiple sleeves 36. Multiple fixing components 37 include multiple pins 371. The pins 371 are inserted into the through holes 13 under the action of springs 372 to realize the quick docking of the retaining rod and the connector 8, and the crossbeam and the connecting piece 10. The multiple pins 371 are slidably connected to the two sides inside the corresponding sleeves 36. The inside of each of the multiple sleeves 36 is provided with a spring 372, which provides an automatic reset force for the pins 371. The two ends of the multiple springs 372 are fixedly connected to one side of the corresponding pins 371. The two ends of the multiple connectors 8 are provided with through holes 13, which provide a locking position for the pins 371. One side of each of the multiple pins 371 is slidably connected to the corresponding through hole 13. The connecting mechanism 3 also includes multiple connecting frames 38. The bottom of the multiple connecting frames 38 is fixedly connected to the top of the corresponding secondary support leg 12. The inner side of the multiple connecting frames 38 is slidably connected to the outer side of the corresponding crossbeam 6 and crossbeam 7. The bottom of the inner side of the multiple connecting frames 38 is fixedly connected to a positioning post 39. The top of the multiple positioning posts 39 penetrates the bottom of the corresponding crossbeam 6 and crossbeam 7. The positioning posts 39 penetrate the bottom of the crossbeam 6 and crossbeam 7, so as to quickly achieve the alignment of the crossbeam and the secondary support leg 12. Two crossbeams 6 and 7 are fixedly connected to one side with fixing plates 19, which provide through support points for the sliding rods 31, enabling the crossbeams and the surrounding rods to be quickly connected through the connectors 8. One side of multiple sliding rods 31 is connected to the corresponding fixing plates 19. Specifically, when assembling the bed frame, first place the connector 8 on the adjacent parts of the same side rail 1, pinch the pins 371 on both sides of the rail 1, so that the pins 371 retract into the sleeve 36 against the elastic force of the spring 372. Then slide the adjacent ends of the two rails 1 along the inner sides of the connector 8 and bring them closer to each other. At this time, the pins 371 enter the inner wall of the connector 8. When the position of the pins 371 coincides with the position of the through hole 13, the spring 372 resets and the pins 371 insert into the through hole 13, completing the quick connection of the two rails 1 using the connector 8. The same applies to the rail 2 5 on the same side, which is connected through the connector 8. Then, one end of the slide rod 31 passes through the fixing piece 19 on the side of the rail 1 and rail 2 5 along the connector 8. Since the limiting groove 32 at one end of the slide rod 31 is rotatably connected with the locking block 33, after passing through, The locking block 33 falls naturally and hangs on one side of the fixing plate 19, initially restricting the axial displacement of the slide rod 31 and preventing the slide rod 31 from being pulled out. Then, the handle 35 is rotated to drive the eccentric wheel 34 to rotate. The eccentric wheel 34 is rotatably connected to the other side of the outer wall of the slide rod 31. After rotation, its outer wall part presses against the outer wall of the connector 8, causing the slide rod 31 to produce relative displacement. The locking block 33 is tightly attached to the fixing plate 19. Then, the eccentric wheel uses the self-locking characteristic of the eccentric structure to fix the position of the slide rod 31 and prevent it from loosening. At this time, the general frame is assembled through multiple connectors 8. Then, the positioning post 39 at the bottom of the inner side of the connecting frame 38 passes through the bottom of the crossbeam 6 and the second crossbeam 7 to achieve the initial positioning of the crossbeam 6, the second crossbeam 7 and the auxiliary support leg 12, completing the basic construction of the bed frame. Then, the connection is reinforced with bolts to complete the assembly.

[0034] The limiting mechanism 4 includes multiple fixed rods 41. The top of each fixed rod 41 is fixedly connected to one side of the bottom of the corresponding second surrounding rod 5. The outer walls of each fixed rod 41 are rotatably connected to rotating rods 42. The fixed rods 41 provide a fulcrum for the rotating rods 42. The bottom inner side of each rotating rod 42 is rotatably connected to a rotating block 43. The rotating block 43 drives the limiting rod 44 to rotate. The interior of each rotating block 43 is rotatably connected to the limiting rod 44. The limiting rod 44 fits against the edge of the mattress to block displacement and prevent the mattress from sliding on the bed frame. The bottom of each fixed rod 41 is threadedly connected to a screw 45. The screw 45 is threadedly connected to the fixed rod 41. Tightening the screws achieves the compression and fixation of the friction pad 46. The outer walls of each screw 45 are slidably connected to the friction pad 46. A connecting plate 14 is provided at the bottom of the adjacent side of the front side rail 1 and the second side rail 5. The connecting plate 14 connects the front side rail 1 and the second side rail 5 and provides an installation base for the main support leg 15. The bottom of the two connecting plates 14 is provided with the main support leg 15. The main support leg 15 supports the weight of the front edge of the bed frame. The bottom of the rear side rail 2 is provided with the main support leg 2 16. The main support leg 2 16 and the main support leg 1 15 work together to support the four corners of the bed frame. Specifically, taking the fixed rod 41 on one side of the bottom of the second ring rod 5 as a reference, the rotating rod 42 can rotate along the outer wall of the fixed rod 41. When it is necessary to implement the limit, the rotating rod 42 is rotated to a direction perpendicular to the second ring rod 5, and then the limiting rod 44 is rotated so that the limiting rod 44 is unfolded to a state perpendicular to the rotating rod 42. The rotating block 43 at the bottom of the inner side of the rotating rod 42 can drive the limiting rod 44 to rotate. Then, the rotating rod 42 is rotated in the opposite direction so that the rotating rod 42 drives the limiting rod 44 to fit against the edge of the mattress. Then, the screw 45 is threaded to the fixed rod 41. The friction pad 46 sleeved on the outer wall of the screw 45 will be squeezed when the screw 45 is tightened. 46 is in close contact with the bottom of the rotating rod 42, and the friction force locks the angle of the rotating rod 42, preventing the rotating rod 42 from loosening due to the pressure of the mattress. When it is necessary to move the mattress or store the bed frame, loosen the screw 45 to release the pressure of the friction pad 46. The limiting rod 44 folds with the rotating block 43, and then rotates the rotating rod 42 to fit the bottom of the second surrounding rod 5. At this time, the overall structure will not protrude from the edge of the bed frame and will not affect the storage. The first main support leg 15 is installed under the bed frame through the connecting piece 10, which has a certain hiding effect. The second main support leg 16 is connected to the second surrounding rod 5 by bolts, and together with the first main support leg 15, it provides support for the four corners of the bed frame.

[0035] Connecting legs 9 are provided between the two adjacent crossbeams 6 and 7. Connecting plates 10 are fixedly connected to the top of the connecting legs 9. Connecting plates 10 are used to connect crossbeams 6, connecting legs 9 and connecting frames 11 to achieve the connection of horizontal and vertical components. Connecting frames 11 are fixedly connected to the front and rear sides of connecting plates 10. Connecting frames 11 provide overlapping support points for sub-beams 18 to ensure accurate installation of sub-beams 18. The adjacent sides of the two crossbeams 6 are slidably connected to the inner left and right ends of the corresponding connecting plates 10. The adjacent sides of the two crossbeams 7 are slidably connected to the inner sides of the corresponding connecting frames 11. Multiple connecting frames 17 are fixedly connected to the adjacent sides of multiple rails 1 and crossbeams 7. Connecting frames 17 achieve the initial overlapping and positioning of crossbeams 7 and connecting plates 10. Sub-beams 18 are provided on the adjacent sides of multiple connecting frames. Sub-beams 18 increase the support area of ​​the mattress and make the force more even. Specifically, the two crossbeams 6 are connected to each other by inserting pins 371 into connecting pieces 10. The adjacent side of the crossbeam 7 overlaps with the inner side of the connecting frame on both sides of the connecting piece 10 to achieve a preliminary connection. The secondary beam 18 overlaps between the crossbeam 7 and the retaining rod 1 through the connecting frame 17 to achieve support for the mattress.

[0036] Working principle: The support mechanism 2 is used to enhance the load-bearing stability of the bed frame edge. During use, the slider 21 inside the support rod 1 slides along the groove 22, causing the connecting block 23 at the bottom and the connecting rod 26 to move synchronously. When not unfolded, the support rod 24 and support block 25 are folded at the bottom of the support rod 1. When unfolding the support, push the sliders 21 on both sides of the support rod 1 towards the center, simultaneously rotating the support rod 24 at the bottom of the connecting block 23 until the support block 25 at the bottom of the support rod 24 contacts the ground. At this point, the support blocks 25 on both sides contact each other, and the positioning pin 291 is inserted into the positioning hole 292, causing multiple support blocks 25 to be linked and fixed, thus forming a support for the support rod. The auxiliary support of the first rod 1 is then turned by rotating the handle 28 to drive the eccentric wheel 27 to rotate. The eccentric wheel 27 is rotatably connected to the bottom of the outer wall of the connecting rod 26. As the eccentric wheel rotates, the outer wall of the eccentric wheel contacts the bottom of the first rod 1 and generates a squeezing force. The friction force is used to lock the position of the slider 21 to prevent the slider 21 from sliding back during the support process. When disassembling and storing, turn the handle 28 in the opposite direction, and the eccentric wheel 27 releases the squeezing of the first rod 1. The slider 21 is reset under manual pulling. The support rod 24 is folded with the slider 21 to the bottom of the first rod 1 and fits against the outer wall of the first rod 1 without increasing the storage volume. This achieves quick unfolding and stable locking of the bed frame edge support, which is suitable for uneven ground. Furthermore, the connecting mechanism 3 reduces assembly difficulty by quickly assembling the main frame of the bed frame. During assembly, firstly, the connector 8 is placed between adjacent members of the same side rail 1, and the pins 371 on both sides of the rail 1 are pinched, causing the pins 371 to retract into the sleeve 36 against the elastic force of the spring 372. Then, the adjacent ends of the two rails 1 are slid closer to each other along the inner sides of the connector 8. At this time, the pins 371 enter the inner wall of the connector 8. When the position of the pins 371 coincides with the position of the through hole 13, the spring 372 returns to its original position, allowing the pins 371 to be inserted into the through hole 13, thus completing the quick connection of the two rails 1 through the connector 8. The same applies to the rail 2 5 on the same side, which is connected through the connector 8. The two crossbeams 1 6 are connected by inserting the pins 371 into the connecting piece 10 in the same way. The adjacent side of the crossbeam 2 7 overlaps the inner side of the connecting frame on both sides of the connecting piece 10, achieving a preliminary connection. Then, one end of the slide rod 31 is inserted through the rail along the connector 8. The fixing plate 19 on one side of the first rod 1 and the second rod 5 is connected to the limiting groove 32 at one end of the slide rod 31 by a locking block 33. When the slide rod 31 is penetrated, the locking block 33 falls naturally and hangs on one side of the fixing plate 19, which initially restricts the axial displacement of the slide rod 31 and makes the slide rod 31 unable to be pulled out. Then, the handle 2 35 is turned to drive the eccentric wheel 2 34 to rotate. The eccentric wheel 2 34 is rotatably connected to the other side of the outer wall of the slide rod 31. After rotation, the outer wall part presses against the outer wall of the connector 8 and causes the slide rod 31 to move a certain distance relative to each other, so that the locking block 33 is tightly attached to the fixing plate 19. Then, the eccentric wheel uses the self-locking characteristic of the eccentric structure to fix the position of the slide rod 31 and prevent it from loosening. At this time, the general frame is assembled through multiple connectors 8. Then, the positioning post 39 at the bottom of the inner side of the connecting frame 38 is penetrated through the bottom of the first beam 6 and the second beam 7 to achieve the initial positioning of the first beam 6, the second beam 7 and the auxiliary support leg 12, thus completing the basic construction of the bed frame. Then, the connection is reinforced by bolts to complete the assembly. Finally, the limiting mechanism 4 is used to prevent the mattress from sliding on the bed frame. The fixed rod 41 on one side of the bottom of the second surrounding rod 5 serves as a reference. The rotating rod 42 can rotate along the outer wall of the fixed rod 41 to realize the unfolding and storage of the limiting component. When limiting is required, the rotating rod 42 is rotated to a direction perpendicular to the second surrounding rod 5. Then, the limiting rod 44 is rotated so that the limiting rod 44 unfolds perpendicular to the rotating rod 42. The rotating block 43 at the bottom of the inner side of the rotating rod 42 can drive the limiting rod 44 to rotate. Then, the rotating rod 42 is rotated in the opposite direction so that the rotating rod 42 drives the limiting rod 44 to fit against the edge of the mattress. Then, the screw 45 is threadedly connected to the fixing rod 41. The friction pad 46 on its outer wall is squeezed when the screw 45 is tightened. The friction pad 46 is in close contact with the bottom of the rotating rod 42, and the friction force is used to lock the angle of the rotating rod 42 to prevent the rotating rod 42 from loosening due to the pressure of the mattress. When it is necessary to move the mattress or store the bed frame, the screw 45 is loosened to release the pressure of the friction pad 46. The limiting rod 44 is folded with the rotating block 43. The rotating rod 42 is rotated to fit the bottom of the second surrounding rod 5. The overall structure does not protrude from the edge of the bed frame and does not affect storage.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concealed bed frame, comprising multiple first-stage rails (1), multiple second-stage rails (5), multiple connectors (8), two first-stage crossbeams (6), and two second-stage crossbeams (7), characterized in that, Each of the multiple first-level rails (1) is provided with a support mechanism (2) at its bottom, which is used to support the edge of the bed frame. Each of the multiple connectors (8) is provided with a connecting mechanism (3) on its inner side, which is used to quickly assemble the bed frame. Each of the multiple second-level rails (5) is provided with a limiting mechanism (4) at its bottom side, which is used to prevent the mattress from sliding. Each of the two crossbeams (6) and crossbeam (7) is provided with a secondary support leg (12) at its bottom. The support mechanism (2) includes multiple sliders (21), which are slidably connected to the front and rear sides of the corresponding enclosure rod (1). The bottom front and rear sides of the enclosure rods are provided with sliding grooves (22). A connecting block (23) is fixedly connected to one side of the bottom of each slider (21), and a connecting rod (26) is fixedly connected to the other side of the bottom of each slider (21). A support rod (24) is rotatably connected to the bottom of each connecting block (23), and a support block (25) is rotatably connected to the bottom of each support rod (24). An eccentric wheel (27) is rotatably connected to the bottom of the outer wall of each connecting rod (26). A handle (28) is fixedly connected to one side of the outer wall of each eccentric wheel (27), and a positioning component (29) is provided on one side of each support block (25).

2. A concealed bed frame according to claim 1, characterized in that, The connecting mechanism (3) includes multiple slide rods (31), which are slidably connected to the inner left and right ends of the corresponding connectors (8). Each of the multiple slide rods (31) has a limit groove (32) on the top of one side of its outer wall. Each of the multiple limit grooves (32) has a locking block (33) rotatably connected inside. Each of the multiple slide rods (31) has an eccentric wheel (34) rotatably connected to the other side of its outer wall. Each of the multiple eccentric wheels (34) has a handle (35) fixedly connected to one side of its outer wall. Each of the multiple wall rails (1), multiple wall rails (5), multiple connectors (8), and two crossbeams (6) has a sleeve (36) fixedly connected to one side of its inner wall. Each of the multiple sleeves (36) has a fixing component (37) inside.

3. A concealed bed frame according to claim 1, characterized in that, The limiting mechanism (4) includes multiple fixed rods (41), the tops of the multiple fixed rods (41) are fixedly connected to the bottom side of the corresponding second surrounding rod (5), the outer walls of the multiple fixed rods (41) are rotatably connected to rotating rods (42), the bottom end of the inner side of the multiple rotating rods (42) is rotatably connected to rotating blocks (43), the interior of the multiple rotating blocks (43) is rotatably connected to limiting rods (44), the bottom of the multiple fixed rods (41) is threadedly connected to screws (45), and the outer walls of the multiple screws (45) are slidably connected to friction pads (46).

4. A concealed bed frame according to claim 1, characterized in that, The positioning component (29) includes multiple positioning pins (291), each of which is fixedly connected to one side of a corresponding support block (25). Each of the multiple support blocks (25) has a positioning hole (292) on one side, and each of the multiple positioning pins (291) engages with the corresponding positioning hole (292).

5. A concealed bed frame according to claim 2, characterized in that, The plurality of fixing components (37) include a plurality of pins (371), the plurality of pins (371) being slidably connected to the inner sides of the corresponding sleeves (36), the plurality of sleeves (36) being provided with springs (372), the two ends of the plurality of springs (372) being fixedly connected to one side of the corresponding pins (371), the two ends of the plurality of connectors (8) being provided with through holes (13), and one side of the plurality of pins (371) being slidably connected to the corresponding through holes (13).

6. A concealed bed frame according to claim 2, characterized in that, The connecting mechanism (3) further includes multiple connecting frames (38), the bottom of the multiple connecting frames (38) is fixedly connected to the top of the corresponding secondary support leg (12), the inner side of the multiple connecting frames (38) is slidably connected to the outer side of the corresponding crossbeam one (6) and crossbeam two (7), the bottom of the inner side of the multiple connecting frames (38) is fixedly connected to a positioning column (39), and the top of the multiple positioning columns (39) penetrates the bottom of the corresponding crossbeam one (6) and crossbeam two (7).

7. A concealed bed frame according to claim 1, characterized in that, A connecting leg (9) is provided between the two adjacent crossbeams (6) and crossbeam (7). A connecting piece (10) is fixedly connected to the top of the connecting leg (9). A connecting frame (11) is fixedly connected to the front and rear sides of the connecting piece (10). The adjacent sides of the two crossbeams (6) are slidably connected to the inner left and right ends of the corresponding connecting piece (10), and the adjacent sides of the two crossbeams (7) are slidably connected to the inner side of the corresponding connecting frame (11).

8. A concealed bed frame according to claim 1, characterized in that, A connecting plate (14) is provided at the bottom of the adjacent side of the front rail one (1) and the second rail (5), and a main support leg (15) is provided at the bottom of the two connecting plates (14), and a main support leg (16) is provided on one side of the bottom of the rear rail two (5).

9. A concealed bed frame according to claim 1, characterized in that, Multiple connecting frames (17) are fixedly connected to the adjacent sides of the multiple railings (1) and the crossbeams (7), and a secondary beam (18) is provided on the adjacent sides of the multiple connecting frames.

10. A concealed bed frame according to claim 2, characterized in that, One side of each of the two crossbeams (6) and the other crossbeam (7) is fixedly connected to a fixing plate (19), and one side of each of the multiple sliding rods (31) passes through the corresponding fixing plate (19).

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