Height-adjustable apartment bed

Abstract

The invention relates to the technical field of beds, in particular to a height-adjustable apartment bed which comprises bed legs fixedly connected to the lower portion of a bed frame; the lower part of the bed frame is fixedly connected with the crawling ladder; the control block is connected in the frame edge in a sliding manner; the connecting arms are rotationally connected between the bed legs and the control blocks; the threaded rods are rotationally connected into the frame edges; the servo motor is fixedly connected into the bed frame, and an output shaft of the servo motor is fixed to one threaded rod of the servo motor. Stepless adjustment of the height of the bed frame is achieved through the structure of the threaded rod, the control block and the connecting arm, by achieving free adjustment of the height of the bed frame, a user can conduct personalized setting on space utilization, and the fineness of random conversion of living space functions is improved, namely, the user experience is improved. According to the invention, random matching with an actual use scene is realized, so that the utilization rate of the living space is improved, and the market competitiveness of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of beds, in particular to a height-adjustable apartment bed. Background Art

[0002] In the design of compact living spaces (such as student apartments and micro-residences like bachelor apartments), optimizing spatial efficiency remains a core concern. Currently, the mainstream solution is to free up vertical space through the construction of loft beds, thereby expanding the floor area for activities. However, traditional fixed loft beds present a dual dilemma: their static height setting can cause users to struggle with adapting to sleeping height (affecting both psychological safety and physical comfort), while the increased height increases the risk of falls, creating a hidden conflict between safety and space utilization.

[0003] As a technical upgrade solution, although the hydraulically driven lift bed realizes the dynamic height adjustment function, its technical architecture still has significant limitations; the primary problem is reflected in the system reliability level: the hydraulic transmission mechanism relies on the sealing performance of the sealing components, and the risk of oil leakage and seal aging problems directly push up the maintenance cost of the entire life cycle; and at the functional implementation level, existing products generally adopt a segmented gear adjustment mechanism. This discrete control mode cannot meet the continuity requirements of space reconstruction - it not only limits the user's personalized settings of parameters such as sleeping height, storage space, and activity area, but also restricts the precision of space function conversion. From the perspective of ergonomics, the matching error between the preset gear and the actual usage scenario may lead to a marginal decrease in space utilization efficiency. Summary of the Invention

[0004] In view of the defects of the prior art, the present invention proposes a height-adjustable apartment bed that can be steplessly adjusted and can reduce maintenance costs.

[0005] The technical solution is as follows: A height-adjustable apartment bed comprises: a bed frame, which is composed of a frame edge; a bed board, which is fixedly connected to the bed frame; a guardrail, which is fixedly connected to the bed frame; the apartment bed also comprises: bed legs, which are fixedly connected to the bottom of the bed frame and can be extended and retracted; a ladder, which is fixedly connected to the bottom of the bed frame and can be extended and retracted; a control block, which is slidably connected to the control block within the frame edge; a connecting arm, which is rotatably connected between the bed leg and the control block; a threaded rod, which is rotatably connected to the threaded rod within the frame edge, the threaded rods are transmission-connected to each other, and the control block is threadedly engaged with the threaded rod; and a servo motor, which is fixedly connected to the bed frame, and the output shaft of the servo motor is fixed to one of the threaded rods.

[0006] Optionally, each set of bed legs is composed of N levels of slidingly connected legs, and each set of ladders is composed of N levels of slidingly connected ladders, where N is a positive integer greater than one. The leg at the lowest position is the first leg, the leg at the highest position is the second leg, the ladder at the lowest position is the first ladder, and the ladder at the highest position is the second ladder. If the value of N is greater than two, all the legs in the middle position are the third legs, and all the ladders in the middle position are the third ladder. The connecting arm is rotatably connected to the first leg, and the first leg is fixedly connected to the first ladder.

[0007] Optionally, the apartment bed further comprises: a force transmission rod, wherein the connecting arm is rotatably connected to the frame edge with a force transmission rod.

[0008] Optionally, the apartment bed also includes: a folding frame, which is rotatably connected to the front frame edge and extends from the front frame edge when unfolded, and is retracted into the front frame edge when folded; a control sleeve, which is rotatably connected to the frame edge and has a control groove of a spiral segment; a cam, which is fixedly connected to one of the control blocks and moves the cam to cooperate with the spiral segment, and the cam and the spiral segment cooperate to drive the control sleeve to rotate; a transmission gear, which is fixedly connected to the rotating shaft of the control sleeve and the rotating shaft of the folding frame, and the two transmission gears are meshed.

[0009] Optionally, a control groove with a straight segment is provided on the control sleeve, and the spiral segment and the straight segment adopt a smooth transition design. The control block will move the cam to cooperate with the straight segment, and the cam and the straight segment will maintain the position of the control sleeve.

[0010] Optionally, during the movement of the convex shaft controlled block, the convex shaft will first cooperate with the spiral segment and then cooperate with the straight segment.

[0011] Optionally, the apartment bed further comprises: a baffle group, which is provided on the front side of the bed frame; and an elastic member group, which is provided between the baffle group and the bed frame.

[0012] Optionally, the apartment bed further comprises: a support plate, wherein the support plate is rotatably connected to the guardrail on one side; a control rod, wherein the guardrail on the side where the support plate is located is rotatably connected to the control rod; a worm pattern, wherein the control rod is provided with a worm pattern; and a worm wheel pattern, wherein the rotating shaft of the support plate is provided with a worm wheel pattern, and the worm pattern is meshed with the worm wheel pattern.

[0013] Optionally, the apartment bed further comprises: a spiral pattern, a spiral pattern is provided on the control rod; a movable block, a movable block is slidably connected to the guardrail on the side where the support plate is located, and the movable block is threadedly engaged with the control rod through the spiral pattern; and a support rod, a support rod is rotatably connected between the movable block and the support plate.

[0014] Optionally, the apartment bed further comprises: a support plate, to which the support plate is rotatably connected.

[0015] The beneficial effects of the present invention are as follows: the present invention adopts a threaded rod-control block-connecting arm structure to achieve stepless adjustment of the bed frame height. By achieving free adjustment of the bed frame height, the user can personalize the utilization of the space and improve the precision of arbitrary conversion of the living space function. That is, the present invention improves the utilization rate of the living space by achieving arbitrary matching with the actual usage scenario, thereby improving the market competitiveness of the present invention; the present invention uses a synchronous linkage design of multi-level support legs and multi-level ladders to expand the adjustment range of the bed frame height and ensure the safety and simple operation of the present invention; the present invention adds a folding frame, and by connecting the folding frame with the control block, it automatically unfolds when the bed frame is raised to achieve a protective function, and folds in an orderly manner when it is lowered, and then cooperates with the baffle group to close the movement gap in real time, greatly improving the safety of the use of the present invention and preventing mechanical jamming; the present invention adds a back plate, and by using worm gear patterns and worm screw patterns to achieve precise adjustment of the back plate angle, and then cooperates with the retractable support rod and the multi-level support plate to achieve stable fixation of the angle, thereby solving the problem of easy deformation of traditional pillows and expanding the diversified functional requirements such as working and reading on the bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the connection structure of the supporting legs and the supporting ladder in the unfolded state in the present invention.

[0018] Figure 3 This is a schematic diagram of the position structure of the control block, connecting arm and threaded rod in the present invention.

[0019] Figure 4 Schematic diagram of the connection structure of the control block, connecting arm and threaded rod in the present invention.

[0020] Figure 5 It is a schematic diagram of the coordination structure of the folding frame and the control block in the present invention.

[0021] Figure 6 It is a schematic diagram of the matching structure between the control sleeve and the cam shaft when the folding frame is in the unfolded state in the present invention.

[0022] Figure 7 It is a structural schematic diagram of the baffle group when the folding frame in the present invention is in the unfolded state.

[0023] Figure 8 It is a structural schematic diagram of the baffle group when the folding frame of the present invention is in the folded state.

[0024] Figure 9 It is a schematic diagram of the connection structure between the abutment plate and the control rod in the present invention.

[0025] Figure 10It is a schematic diagram of the position structure of the worm pattern and the worm wheel pattern in the present invention.

[0026] Figure 11 It is a structural schematic diagram of the support plate in the expanded state in the present invention.

[0027] Markings in the accompanying drawings: 11_bed frame, 1101_frame edge, 12_bed board, 13_guardrail, 14_bed foot, 1401_first leg, 1402_second leg, 1403_third leg, 15_ladder, 1501_first ladder, 1502_second ladder, 1503_third ladder, 21_control block, 22_connecting arm, 23_threaded rod, 24_servo motor, 25_bevel gear, 26_force transmission rod, 31_folding frame, 3101_rotating rod, 32_control sleeve, 33_camshaft, 34_transmission gear, 41_baffle group, 4101_first split plate, 4102_second split plate, 4103_third split plate, 4104_fourth split plate, 42_elastic member group, 4201_first return spring, 4202_first return torsion spring, 4203_second return spring, 4204_second return torsion spring, 51_but plate, 52_control rod, 53_worm pattern, 54_worm wheel pattern, 55_spiral pattern, 56_movable block, 57_support rod, 58_support plate. DETAILED DESCRIPTION

[0028] The following description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0029] Example: A height-adjustable apartment bed, see Figure 1-Figure 4, including: a bed frame 11, which is a rectangular frame structure composed of four precisely machined frame edges 1101. The frame edges 1101 are made of high-strength metal materials. A plurality of transverse reinforcing beams are fixedly connected between the four frame edges 1101 by welding, thereby enhancing the overall structural stability and load-bearing capacity of the bed frame 11; a bed board 12, a composite board 12 treated with moisture-proof material is fixed on the top of the bed frame 11 with bolts, and the bed board 12 provides a comfortable and stable supine resting space for the user; a guardrail 1 3. Guardrails 13 are fixedly installed on the left and right sides and the back of the bed frame 11. The guardrails 13 adopt a metal grid structure. While ensuring ventilation, they effectively limit the user's range of movement and prevent the user from turning over or falling from a height during sleep due to excessive movements, thereby reducing the risk of accidents; bed feet 14. Four sets of bed feet 14 are symmetrically fixedly installed below the bed frame 11. Each set of bed feet 14 consists of three-level sliding assembly legs, so that the support height of the bed frame 11 can be adjusted to meet the different usage requirements of this apartment bed. In order to facilitate the subsequent description, the height position is used as the distinguishing standard to distinguish the lowest leg from the first leg 1401, the highest leg from the second leg 1402, and the middle leg from the third leg 1403; the ladder 15 is fixedly installed at the lower front side of the bed frame 11 and is linked to the bed leg 14. The ladder 15 consists of three-stage sliding assembled ladders. For the convenience of subsequent description, the height position is used as the distinguishing standard to distinguish the lowest leg from the first leg 150. 1. The highest leg is the second ladder 1502, and the middle leg is the third ladder 1503. The first leg 1401 is fixedly installed between the first ladder 1501, and the second leg 1402 is also fixedly installed between the second ladder 1502. Therefore, when the height of the bed leg 14 is extended or retracted, the height of the ladder 15 will automatically adapt to the height of the bed leg 14, completing the synchronous extension or retraction adjustment, ensuring the stability, safety and convenience of the apartment bed during use.

[0030] See Figure 1 、 Figure 3 and Figure 4, also includes: a control block 21, a control block 21 is slidably installed in the frame edge 1101 of the bed frame 11, and the specific arrangement is that a control block 21 is provided in each of the frame edges 1101 on the left and right sides, and the displacement direction of the control block 21 is the front and rear direction, and two control blocks 21 are symmetrically provided in the frame edge 1101 on the rear side, and the displacement direction of the control block 21 is the left and right direction. To ensure the long-term use of the control block 21, all control blocks 21 are made of wear-resistant material; a connecting arm 22, a high-strength connecting arm 22 is rotatably installed between the first support leg 1401 in the bed leg 14 and the control block 21, and the specific arrangement is that the control block 21 on the left There is a connecting arm 22 between the first support leg 1401 on the left side of the front, and a connecting arm 22 between the right control block 21 and the first support leg 1401 on the right side of the front. For the two control blocks 21 at the rear, there is a connecting arm 22 between the left control block 21 and the first support leg 1401 on the left side of the rear, and a connecting arm 22 between the right control block 21 and the first support leg 1401 on the right side of the rear. All connecting arms 22 are of equal length, and the connection position of each connecting arm 22 and the first support leg 1401 is at the same height, thereby ensuring the uniformity of the transmission of each connecting arm 22; threaded rod 23, frame edge 11 on the left and right sides and the rear side of the bed frame 11 A high-precision threaded rod 23 is rotatably installed in 101, wherein the control blocks 21 on the left and right sides are respectively threadedly matched with the threaded rod 23 on the corresponding side, and the threaded rod 23 on the rear side adopts a specially designed double-headed screw structure, which uses the midpoint as the dividing point, and the threads on the left and right sides are set in opposite directions, and the two control blocks 21 on the rear side are respectively matched with the two threads of the threaded rod 23 with opposite rotation directions; a servo motor 24 is fixedly installed in the bed frame 11, specifically a servo motor 24 is fixedly installed in the frame edge 1101 on the left side, and the output shaft of the servo motor 24 is fixedly installed with the threaded rod 23 on the left side through a coupling, and the servo motor 24 is on the left side. The threaded rod 23 is used for power transmission; the bevel gear 25 is fixedly mounted on the threaded rod 23, and the three threaded rods 23 are connected through the bevel gear 25. The specific arrangement is that the threaded rods 23 on the left and right sides are provided with a bevel gear 25 at the rear end portion, and the threaded rod 23 on the rear side is provided with a bevel gear 25 at both ends. The bevel gear 25 at the rear end of the left threaded rod 23 is meshed with the bevel gear 25 at the left end of the rear threaded rod 23, and the bevel gear 25 at the rear end of the right threaded rod 23 is meshed with the bevel gear 25 at the right end of the rear threaded rod 23. Therefore, through the transmission function of the bevel gear 25, the three threaded rods 23 can rotate synchronously;A force transmission rod 26 is rotatably mounted between the connecting arm 22 and the frame edge 1101. Specifically, one force transmission rod 26 is provided between the left connecting arm 22 and the left frame edge 1101, and one force transmission rod 26 is provided between the right connecting arm 22 and the right frame edge 1101. These force transmission rods 26 are made of high-strength alloy to effectively distribute the force exerted by the connecting arm 22 on the bed frame 11, ensuring uniform force on the bed frame 11 during lifting or lowering, and maintaining the stability of the bed frame 11 during movement.

[0031] When the servo motor 24 is started, the three threaded rods 23 will maintain synchronous and frequency rotational motion through the stable transmission of each bevel gear 25, and this synchronous rotational motion will cause the four control blocks 21 to produce completely equal displacements per unit time. Then, through the transmission function of each connecting arm 22, all the first legs 1401 are controlled to produce completely consistent relative displacements with the bed frame 11 per unit time, thereby ensuring that the bed frame 11 can be adjusted in height smoothly and accurately.

[0032] By using the threaded rod 23 in conjunction with the adjustment control method of the connecting arm 22, a stepless adjustment mechanism of the bed frame 11 is constructed in the present apartment bed. By accurately controlling the number of rotations of the servo motor 24, precise control of the displacement distance of the bed frame 11 in the height direction is achieved. Therefore, when users personalize their apartment space, the use of the present apartment bed will completely avoid the influence of the height limit of traditional apartment beds, and the present apartment bed can be arbitrarily adjusted according to actual needs. In addition, the mechanical structure adopted by the present apartment bed has reduced operation and maintenance complexity compared to the traditional hydraulic system. All moving parts are designed for durability, which will extend the service life of the present apartment bed. At the same time, the mechanical transmission system has higher reliability and lower failure rate, ensuring the stability of the present apartment bed during long-term use.

[0033] See Figure 1 、 Figure 5 and Figure 6, also includes: a folding frame 31, a folding frame 31 is rotatably installed on the front side frame edge 1101 of the bed frame 11, the folding frame 31 is composed of a three-section rotating rod 3101 made of high-strength alloy, and the three-section rotating rod 3101 will form a parallelogram-shaped motion mechanism with the front side frame edge 1101, and the folding frame 31 can be smoothly unfolded and folded by rotating the rotating rods 3101 on the left and right sides. In the unfolded state, the folding frame 31 will function as a guardrail 13 on the front side of the bed frame 11 to form an effective safety protection barrier; a control sleeve 32, a control sleeve 32 is rotatably installed in the bed frame 11, specifically, the control sleeve 32 is rotatably installed in the right side frame edge 1101, and a specially designed control groove is milled on the control sleeve 32, which consists of two parts: the rear section is a precisely calculated spiral segment, and the front section is a straight line segment parallel to the axis, and a smooth transition design is adopted between the two sections to ensure movement continuity; a convex shaft 33, a control sleeve 32 on the right A cam 33 is fixedly mounted on the control block 21. When the control block 21 moves axially, the moving cam 33 will cooperate with the control groove on the control sleeve 32, and will first cooperate with the spiral segment and then with the straight segment. When the cam 33 moves within the range of the spiral segment, the control sleeve 32 will be driven to rotate by the action of the spiral segment. When the cam 33 enters the range of the straight segment, it will remain in a relatively static state with the control sleeve 32, and the transmission action is terminated at this time; a transmission gear 34 is fixedly mounted on the rotating shaft of the control sleeve 32 and the rotating shaft of the connecting frame edge 1101 in the folding frame 31. The two transmission gears 34 are meshed with each other. The two transmission gears 34 adopt a helical tooth design to ensure stability and low noise characteristics during the meshing process. Through the transmission of the transmission gear 34 pair, the positive and negative rotation of the control sleeve 32 will be accurately converted into the angular displacement of the rotating rod 3101 in the folding frame 31, thereby realizing automatic control of the expansion and folding of the folding frame 31.

[0034] When the servo motor 24 starts and drives the bed legs 14 to unfold, the rotational movement of the right-side threaded rod 23 will push the control block 21 cooperating therewith to move forward. During this process, when the control block 21 moves forward to the control sleeve 32, the convex shaft 33 thereon enters the spiral segment of the control sleeve 32 and first cooperates with the spiral segment to drive the control sleeve 32 to rotate forward. The folding frame 31 is smoothly unfolded through the transmission gear 34 pair. Then the convex shaft 33 moves relatively to the straight segment, the position of the folding frame 31 is locked, and the folding frame 31 remains in a fully unfolded state; when the servo motor 24 drives the bed legs 14 to retract and the bed frame 11 drops to near the lowest position, the convex shaft 33 enters the spiral segment again, drives the control sleeve 32 to rotate in the opposite direction, and causes the folding frame 31 to fold in an orderly manner; the phase design of the spiral segment ensures the precise correspondence between the protective action and the height change, while the straight segment design will ensure the stable maintenance of the working state.

[0035] By using the folding frame 31 that can be automatically unfolded and guarded, when the apartment bed is used in a low position, the front side has no guardrail 13 design to provide a barrier-free use experience, and when the apartment bed is used in a high position, the front side has the automatically unfolded folding frame 31 as a front guardrail, thereby improving the safety of the apartment bed. Therefore, the folding frame 31 as a foldable front guardrail in the apartment bed will perfectly balance the comfort and safety of the apartment bed.

[0036] Compared with the traditional fixed guardrail 13 design, the apartment bed uses a folding frame 31 as a foldable guardrail on the front side, which will have the following advantages: First, the apartment bed will realize intelligent automatic adjustment of the protection function by adopting a mechanical linkage method without the need for an additional control system, thereby improving the operation convenience of the apartment bed; Second, the movement process of this group is smooth and reliable, with a long service life, simple maintenance and a low failure rate.

[0037] See Figure 1 、 Figure 7 and Figure 8 , also includes: a baffle group 41, a baffle group 41 is provided on the front side of the bed frame 11, the baffle group 41 is used to close the different types of gaps generated by the folding frame 31 after it is unfolded and folded, so as to effectively prevent debris from entering the movement range of the folding frame 31 and avoid the folding frame 31 from being stuck in movement; an elastic member group 42, an elastic member group 42 is provided between the baffle group 41 and the bed frame 11, the elastic member group 42 enables the baffle group 41 to unfold and fold along with the folding frame 31.

[0038] The baffle group 41 includes: a first split plate 4101, a first split plate 4101 is slidably installed in the left part of the front frame edge 1101, the displacement direction of the first split plate 4101 is left and right, the first split plate 4101 extends from the frame edge 1101 to close the movement gap on the left side of the folding frame 31, the surface of the first split plate 4101 is specially polished to ensure smooth sliding; a second split plate 4102, a second split plate 4102 is rotatably installed on the first split plate 4101, the second split plate 4102 is used to dock between the first split plate 4101 and the folding frame 31, during the entire movement process, the second split plate 4102 always keeps in contact with the folding frame 31, which not only plays a guiding role, but also can accurately transmit the movement of the folding frame 31 to the first split plate 4101, the second split plate 4102 102 is made of wear-resistant composite material to extend its service life and ensure its normal transmission function; the third partition plate 4103 is slidably installed in the front frame edge 1101, and the displacement direction of the third partition plate 4103 is up and down. The third partition plate 4103 is used to close the space below the folding frame 31; the fourth partition plate 4104 is rotatably installed on the right part of the front frame edge 1101, and the fourth partition plate 4104 contacts the rotating rod on the right side of the folding frame 31. The fourth partition plate 4104 is used to close the movement gap on the right side of the folding frame 31. The lower side of the fourth partition plate 4104 adopts a contact surface that cooperates with the folding frame 31, and a buffer layer is provided on the inner side to ensure that the contact with the rotating rod of the folding frame 31 is kept close without generating noise.

[0039] The elastic member group 42 includes: a first return spring 4201, which is fixedly installed between the first split plate 4101 and the front frame edge 1101. When the folding frame 31 is folded, the first split plate 4101 is squeezed to move to the left, compressing the first return spring 4201 to deform, so as to ensure that the first split plate 4101 is accurately reset when the folding frame 31 is unfolded, and provide a stable buffer force for the folding of the folding frame 31; a first return torsion spring 4202, which is fixedly installed between the first split plate 4101 and the second split plate 4102. The first return torsion spring 4202 is sleeved on the rotating shaft of the second split plate 4102. When the folding frame 31 controls the first split plate 4101 through the second split plate 4102, it controls the second split plate 4102 relative to the first split plate 4101. The first return torsion spring 4202 is rotated and twisted to deform, thereby providing space for the folding frame 31 to fold. The second return spring 4203 is fixedly installed between the third sub-plate 4103 and the front frame edge 1101. When the folding frame 31 is folded, the first sub-plate 4101 is pressed downward to compress the second return spring 4203 to deform, thereby providing space for the folding frame 31 to fold. The second return torsion spring 4204 is fixedly installed between the fourth sub-plate 4104 and the front frame edge 1101. The second return torsion spring 4204 is sleeved on the rotating shaft of the fourth sub-plate 4104. When the folding frame 31 is unfolded, the fourth sub-plate 4104 is pressed to rotate and twist the second return torsion spring 4204 to deform, thereby providing space for the folding frame 31 to unfold.

[0040] When the folding frame 31 is in the folded state: ① the space on the left side of the folding frame 31 is blocked by the folding frame 31 itself. At this time, the first partition plate 4101 is squeezed and retracted into the front frame edge 1101 by the folding frame 31, the first return spring 4201 is compressed, the second partition plate 4102 is squeezed and rotated downward by the folding frame 31, and the first return torsion spring 4202 is twisted, providing the left space required for the folding frame 31 to be folded; ② the space below the folding frame 31 is blocked by the folding frame 31 itself. At this time, the third partition plate 4103 is retracted into the front frame edge 1101 and the second return spring 4203 is compressed, providing the lower space required for the folding frame 31 to be folded; ③ the space on the right side of the folding frame 31 is vacated. At this time, the fourth partition plate 4104 covers the space above the right side of the folding frame 31, completely blocking the vacated right side space of the folding frame 31, and the second return torsion spring 4204 is in a natural state.

[0041] When the folding frame 31 is in the unfolded state: ① the space on the left side of the folding frame 31 is vacated, the first return spring 4201 moves to the right to reset the first sub-plate 4101, and the second return torsion spring 4204 resets and rotates the second sub-plate 4102 upward, and the two work together to form a complete protective barrier for the left side space; ② the space below the folding frame 31 is vacated, the second return spring 4203 resets upward, tightly sealing the space below the vacated space after the folding frame 31 is unfolded; ③ the space on the right side of the folding frame 31 is used by the unfolded state of the folding frame 31, and the fourth sub-plate 4104 is rotated by the folding frame 31 to provide the right side space required for use when the folding frame 31 is unfolded, and the second return torsion spring 4204 is squeezed and deformed.

[0042] In summary, the present apartment bed adopts a modular baffle group 41, which completely eliminates the risk of foreign objects getting stuck by fully covering all movement gaps, and will effectively prevent mechanical pinching accidents that may occur during use; secondly, the use of the elastic member group 42 will ensure that the baffle group 41 can automatically adapt to the different working conditions of the folding frame 31 without any manual intervention, and realize completely autonomous intelligent adjustment; thirdly, all moving parts are made of wear-resistant materials and precisely matched to ensure long-term reliability; finally, the buffering effect of the elastic member group 42 will reduce mechanical shock to extend the service life of the present apartment bed.

[0043] See Figure 1 、 Figure 9 、 Figure 10 and Figure 11 , further comprising: a butt plate 51, a butt plate 51 being rotatably mounted on the guardrail 13 on the right side, the butt plate 51 being made of a high-strength composite material, and having an ergonomically designed buffer layer on its surface, the butt plate 51 being used to provide stable support for the user, providing the user with a more comfortable state of use; a control rod 52, a control rod 52 being rotatably mounted on the guardrail 13 on the right side; a worm pattern 53, a worm pattern 53 being provided on the control rod 52; a worm wheel pattern 54, a worm wheel pattern 54 being provided on the rotating shaft of the butt plate 51, the worm pattern 53 being meshed with the worm wheel pattern 54, and the stable cooperation between the worm pattern 53 and the worm wheel pattern 54, both It can ensure the accuracy of adjustment of the control rod 52 to the support plate 51, and ensure the stability of the support plate 51 after the angle is fixed through the self-locking characteristics of the worm pattern 53 and the worm wheel pattern 54; spiral pattern 55, a spiral pattern 55 is provided on the control rod 52; a movable block 56, a movable block 56 is slidably installed on the guardrail 13 on the right, and the movable block 56 is threadedly matched with the control rod 52 through the spiral pattern 55; a support rod 57, a support rod 57 is rotatably installed between the movable block 56 and the support plate 51, and the support rod 57 increases the supporting force for the support plate 51; a support plate 58, a support plate 58 is rotatably installed on the support plate 51.

[0044] In real life, when users often need to lean back, the traditional way to assist leaning back is to use a pillow as support. However, as the user uses it, the pillow is easily compressed and deformed, which makes it impossible for the user to lean back comfortably all the time, and it is necessary to constantly adjust the thickness and position of the pillow, which is very inconvenient when using it. Therefore, this apartment bed adopts a backrest plate 51 structure. The user can use the control rod 52 to adjust the backrest plate 51 to the most comfortable angle according to personal preference, and then use the backrest plate 51 to provide stable back support for the user, and then place the pillow pad on the backrest plate 51 to increase comfort. By using the backrest plate 51, the user's lying angle can be kept stable without repeated adjustment, thereby improving the user's comfort. In addition, the control rod 52 is provided with The spiral pattern 55 is threadedly matched with the movable block 56 slidably installed on the guardrail 13, so that when the control rod 52 adjusts the angle of the support plate 51, the movable block 56 can be displaced synchronously, and the support rod 57 is adjusted synchronously to provide additional support force for the support plate 51, forming a double protection mechanism to ensure the support stability of the support plate 51. The movable block 56 and the support rod 57 and other components adopt a hidden design, which can not only ensure the convenience of use, but also avoid possible risks of bumps; when the support plate 51 is rotated to a state parallel to the horizontal plane, the support plate 51 can be used as a bedside table. The support plates 58 arranged in stages on the support plate 51 further expand the functionality of the support plate 51 to meet the placement needs of different items such as books and electronic equipment.

[0045] In summary, this apartment bed achieves stepless height adjustment of the bed frame 11 through the threaded rod 23-control block 21-connecting arm 22 structure: all threaded rods 23 are driven to rotate synchronously, driving all control blocks 21 to move equidistantly. The control blocks 21 then push the first leg 1401 through the equal-length connecting arms 22, thereby achieving smooth height adjustment of the bed frame 11. During the control process of raising the bed frame 11, the protruding shaft 33 on the right control block 21 engages with the control slot of the control sleeve 32. Initially, the protruding shaft 33 engages with the spiral segment, driving the control sleeve 32 to rotate and deploy the folding frame 31 via the transmission gear 34 pair. Subsequently, the protruding shaft 33 enters the straight segment, and the folding frame 31 remains deployed, providing safety protection for the elevated bed frame 11. At the same time, the baffle group 41 automatically adjusts its position under the action of the elastic member group 42, and together closes the gap caused by the unfolding movement of the folding frame 31; conversely, in the process of controlling the bed frame 11 to be lowered, the folding frame 31 is smoothly folded and the baffle group 41 is reset synchronously to ensure the comfort of use in the low position state.

[0046] When the backrest function needs to be activated, the rotating control rod 52 drives the worm wheel pattern 54 through the worm pattern 53 to control the rotation of the support plate 51 to the desired angle. The self-locking characteristics of the worm wheel pattern 54 and the worm pattern 53 ensure the stability of the support plate 51 after the angle is fixed. At the same time, the spiral pattern 55 on the control rod 52 pushes the movable block 56 for linear displacement, and the movable block 56 provides additional supporting torque for the support plate 51 through the support rod 57; when the support plate 51 needs to be used as a desktop, it only needs to be adjusted to a horizontal position. At the same time, the multi-level adjustable support plate 58 on it can be flexibly unfolded to form a multi-functional usage platform.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may 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 height-adjustable apartment bed, comprising: The bed frame (11) is composed of a frame edge (1101); a bed board (12) is fixedly connected to the bed frame (11); a guardrail (13) is fixedly connected to the bed frame (11); the apartment bed further comprises: a bed foot (14) is fixedly connected to the lower part of the bed frame (11), and the bed foot (14) can be extended; a ladder (15) is fixedly connected to the lower part of the bed frame (11), and the ladder (15) can be extended; a control block (21) is fixedly connected to the frame edge (11) and the control block (21) is fixedly connected to the bed frame (11). 01) is slidably connected to a control block (21); a connecting arm (22) is rotatably connected between the bed foot (14) and the control block (21); a threaded rod (23) is rotatably connected to the frame edge (1101), the threaded rods (23) are transmission-connected to each other, and the control block (21) and the threaded rod (23) are threadedly matched; a servo motor (24) is fixedly connected to the bed frame (11), and the output shaft of the servo motor (24) is fixed to one of the threaded rods (23) to transmit power thereto.

2. The height-adjustable apartment bed according to claim 1, characterized in that: Each set of bed legs (14) is composed of N-level slidingly connected legs, and each set of ladders (15) is composed of N-level slidingly connected ladders, where N is a positive integer greater than one. The lowest leg is the first leg (1401), the highest leg is the second leg (1402), the lowest ladder is the first ladder (1501), and the highest ladder is the second ladder (1502). If the value of N is greater than two, all the legs in the middle are the third leg (1403), and all the ladders in the middle are the third ladder (1503). The connecting arm (22) is rotatably connected to the first leg (1401), and the first leg (1401) is fixedly connected to the first ladder (1501).

3. The height-adjustable apartment bed according to claim 2, characterized in that: The apartment bed further comprises a force transmission rod (26), wherein the force transmission rod (26) is rotatably connected between the connecting arm (22) and the frame edge (1101), and the force transmission rod (26) is used to distribute the force exerted by the connecting arm (22) on the bed frame (11).

4. The height-adjustable apartment bed according to claim 3, characterized in that: The apartment bed further comprises: a folding frame (31), the folding frame (31) being rotatably connected to the front frame edge (1101), extending from the front frame edge (1101) when the folding frame (31) is unfolded, and being retracted into the front frame edge (1101) when the folding frame (31) is folded; a control sleeve (32), the control sleeve (32) being rotatably connected to the frame edge (1101), the control sleeve (32) being provided with a control groove of a spiral segment; a convex shaft (33), a convex shaft (33) being fixedly connected to one control block (21), the control block (21) moving the convex shaft (33) to cooperate with the spiral segment, and the convex shaft (33) and the spiral segment cooperating to drive the control sleeve (32) to rotate; and a transmission gear (34), the transmission gear (34) being fixedly connected to the rotating shaft of the control sleeve (32) and the rotating shaft of the folding frame (31), the two transmission gears (34) being meshed with each other.

5. The height-adjustable apartment bed according to claim 4, characterized in that: A control groove of a straight line segment is provided on the control sleeve (32), and the spiral segment and the straight line segment adopt a smooth transition design. The control block (21) moves the convex shaft (33) to cooperate with the straight line segment, and the convex shaft (33) cooperates with the straight line segment to maintain the position of the control sleeve (32).

6. The height-adjustable apartment bed according to claim 5, characterized in that: During the movement of the convex shaft (33) by the controlled block (21), the convex shaft (33) will first cooperate with the spiral segment and then cooperate with the straight segment.

7. The height-adjustable apartment bed according to claim 6, characterized in that: The apartment bed further comprises: a baffle group (41), the baffle group (41) being provided on the front side of the bed frame (11), the baffle group (41) being used to close various gaps generated by the folding frame (31) during the unfolding and folding process; and an elastic member group (42), the elastic member group (42) being provided between the baffle group (41) and the bed frame (11), the elastic member group (42) enabling the baffle group (41) to unfold and fold in accordance with the unfolding and folding of the folding frame (31).

8. The height-adjustable apartment bed according to claim 7, characterized in that: The apartment bed further comprises: a support plate (51), wherein the support plate (51) is rotatably connected to the guardrail (13) on one side, and the support plate (51) is used to support the user; a control rod (52), wherein the guardrail (13) on the side where the support plate (51) is located is rotatably connected to the control rod (52); a worm pattern (53), wherein the control rod (52) is provided with a worm pattern (53); and a worm wheel pattern (54), wherein the rotating shaft of the support plate (51) is provided with a worm wheel pattern (54), and the worm pattern (53) is meshed with the worm wheel pattern (54).

9. The height-adjustable apartment bed according to claim 8, characterized in that: The apartment bed further comprises: a spiral pattern (55), the control rod (52) being provided with the spiral pattern (55); a movable block (56), the guardrail (13) on the side where the support plate (51) is located being slidably connected to the movable block (56), the movable block (56) being threadedly engaged with the control rod (52) through the spiral pattern (55); and a support rod (57), the support rod (57) being rotatably connected between the movable block (56) and the support plate (51).

10. The height-adjustable apartment bed according to claim 9, characterized in that: The apartment bed further comprises a support plate (58), and the support plate (58) is rotatably connected to the abutment plate (51).

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