Multifunctional nursing bed frame and nursing bed

Abstract

The invention provides a multifunctional nursing bed frame and a nursing bed, and belongs to the technical field of nursing devices. Comprising a bed frame main body, the bed frame main body comprises a leg bed frame and a back raising bed frame capable of raising the back and turning over, and the back raising bed frame comprises a back support and anti-sideslip supports arranged on the two sides of the back support and rotationally connected with the back support; the leg bedstead comprises a thigh bracket and a shank bracket which are hinged; the back lifting driving piece is arranged on the bed frame main body, a back lifting driving part is arranged on the back lifting bed frame, and an anti-sideslip driving part is arranged on the back lifting driving part; the leg driving part is arranged on the bed frame body, the output end of the leg driving part is connected with the thigh support, the output end is further provided with a driving part, the shank support is provided with a track part, a track groove is formed in the track part, and the driving part extends into the track groove; the multifunctional nursing bed has the advantages that the functions of back turning, anti-sideslip protection, leg linkage lifting and the like are integrated, and the requirement for adjusting various body positions of a bedridden patient in daily nursing is met.

Description

Technical Field

[0001] This invention belongs to the field of nursing device technology, and particularly relates to a multifunctional nursing bed frame and nursing bed. Background Technology

[0002] With the increasing demands for high-quality medical care, multifunctional nursing beds, as an important auxiliary device for the daily care of bedridden patients, have received widespread attention for their functionality and safety. Traditional nursing beds typically have basic back lifting and leg lifting functions to help patients change positions such as sitting and semi-reclining, alleviate discomfort caused by prolonged bed rest, and prevent complications such as pressure sores and breathing difficulties.

[0003] However, existing nursing beds still have many problems in actual use. During the back-raising process, the patient's upper body gradually rises, the center of gravity shifts forward, and the body is prone to sliding to the sides. This is especially true for patients with limited mobility, confusion, or muscle weakness, who are highly susceptible to lateral slippage or even falls from the bed. Although some products provide lateral protection by adding fixed guardrails, these guardrails are mostly static structures that cannot dynamically respond to the back-raising movements. They cannot provide effective protection in the early stages of back-raising, resulting in a disconnect between safety protection and body position adjustment movements, and thus limited protective effect.

[0004] Furthermore, in terms of leg lifting, most systems adopt a design that drives the thigh and calf supports separately, which requires multiple drive devices. This not only increases system complexity, manufacturing costs, and failure risks, but also occupies valuable internal space of the bed, hindering the miniaturization and integration of the equipment. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a nursing bed frame with a simple structure and good stability.

[0006] The objective of this invention can be achieved through the following technical solution: a multifunctional nursing bed frame, comprising: The main body of the bed frame includes a backrest bed frame with a leg frame that can be raised and flipped, the backrest bed frame including a back support and anti-slip supports disposed on both sides of the back support and rotatably connected thereto; the leg frame includes a thigh support and a lower leg support that are hinged together. A backrest drive unit is provided on the bed frame body. The backrest bed frame is provided with a backrest drive part. The backrest drive part is provided with an anti-slip drive part. The anti-slip drive part and the backrest drive part operate synchronously. The backrest drive part is connected to the output end of the backrest drive unit. The backrest drive part has a first working stroke and a second working stroke. Specifically, when the backrest drive unit is in the first working stroke, the backrest drive unit is not driven by the backrest support, but the anti-slip drive unit is driven by the anti-slip support; when the backrest drive unit is in the second working stroke, the backrest drive unit is driven by the backrest support. A leg drive unit is disposed on the bed frame body. The output end of the leg drive unit is connected to the thigh support and is used to control the movement of the thigh support. The output end is also provided with a drive part. The lower leg support is provided with a track part and a track groove is provided in the track part. The drive part extends into the track groove and can move in the track groove, thereby driving the lower leg support to move.

[0007] In the aforementioned multifunctional nursing bed frame, the backrest drive unit includes a drive swing block disposed at the bottom of the backrest support and capable of rotating relative to it; the anti-slip drive unit includes a drive swing rod disposed at the bottom of the anti-slip support, the end of the drive swing rod abutting against the anti-slip support, and the drive swing rod being fixed to the drive swing block.

[0008] In the aforementioned multifunctional nursing bed frame, the backrest lifting drive is hinged to the bed frame body, the output end of the backrest lifting drive can move linearly back and forth, and a connecting rod is hinged to its output end. The drive swing block is fixed to the connecting rod, and the drive swing rod is symmetrically arranged at both ends of the connecting rod. The connecting rod is hinged to the backrest lifting bracket.

[0009] In the aforementioned multifunctional nursing bed frame, the length extension direction of the connecting rod is perpendicular to the back support's back trajectory direction.

[0010] In the aforementioned multifunctional nursing bed frame, the track groove includes a first track segment and a second track segment that are interconnected. Along the length of the bed frame body, the first track segment and the second track segment are not parallel. The bends of the first track segment and the second track segment form a clearance portion. Furthermore, a support frame is horizontally arranged on the bed frame body. When the leg bed frame is laid flat, the support frame abuts against the lower leg support.

[0011] In the aforementioned multifunctional nursing bed frame, the first track segment is an arc-shaped groove, the second track segment extends in a straight line, the leg drive is hinged to the bed frame body, and its output end can move linearly back and forth.

[0012] In the aforementioned multifunctional nursing bed frame, the output end of the leg drive component is fixedly provided with an abutment portion, which abuts against the thigh support to achieve power transmission, and the drive component is fixedly mounted on the abutment portion.

[0013] In the aforementioned multifunctional nursing bed frame, when the leg frame is in a flat position, the second track segment is located in the horizontal direction.

[0014] In the aforementioned multifunctional nursing bed frame, the leg drive component can only drive the drive part to extend into the second trajectory segment after the main body of the bed frame rotates.

[0015] A nursing bed, comprising the aforementioned multifunctional nursing bed frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The multifunctional nursing bed frame of this application integrates functions such as back lifting and flipping, anti-slip protection and leg linkage lifting, which can meet the various position adjustment needs of bedridden patients in daily care. In terms of back lifting function, by setting a back lifting drive unit with first and second working strokes, and integrating a synchronously operating anti-slip drive unit on it, only one back lifting drive unit is needed to realize the safety control logic of protection first and then back lifting: at the initial stage of back lifting, the anti-slip drive unit first drives the anti-slip brackets on both sides to flip upward, forming a lateral limit on the patient's body, effectively preventing the risk of slipping or falling from the bed due to the shift of the center of gravity; after the protection is in place, the back lifting drive unit then engages with the back support to push it to lift smoothly. The whole process is safe and orderly, improving the comfort and reliability of nursing care. (2) In terms of leg adjustment, the output end of the leg drive component is connected to the thigh support and the moving part is set to extend into the trajectory groove of the calf support. This enables the single drive component to control the linkage between the thigh and calf supports. When the drive component moves, it directly drives the thigh support to lift. The moving part slides in the trajectory groove to guide the calf support to move along the preset trajectory, simulating the natural knee-bending posture of the human body, avoiding the legs from being suspended or subjected to improper force, and improving the comfort of use. Attached Figure Description

[0017] Figure 1 This is a diagram showing the bed frame in a flat position; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram showing the state of the anti-slip bracket after it has been flipped over; Figure 4 yes Figure 3 A partial structural diagram of the anti-slip support; Figure 5 This is a schematic diagram of the state behind it; Figure 6 yes Figure 1 A schematic diagram of the mid-leg drive state; Figure 7 yes Figure 1 A diagram illustrating the leg-raising position; Figure 8 yes Figure 7 A schematic diagram of the mid-leg drive state; Figure 9 yes Figure 1 A diagram showing the patient in an out-of-bed position; Figure 10 yes Figure 9 A schematic diagram of the mid-leg drive state; Figure 11 This is a diagram showing the side-tilted position of the nursing bed frame; Figure 12 yes Figure 11 Another perspective illustration.

[0018] In the diagram, 100 is the main body of the bed frame; 101 is the central bed frame; 102 is the side-folding bed frame; 103 is the backrest bed frame; 104 is the backrest support; 105 is the anti-slip support; 106 is the backrest drive unit; 107 is the backrest drive section; 108 is the anti-slip drive section; 109 is the connecting rod; 110 is the hinge block; 111 is the abutment roller; 200 is the leg frame; 201 is the thigh support; 202 is the lower leg support; 203 is the lower leg support. 204. Leg drive component; 205. Moving part; 206. Track part; 207. Track groove; 208. First track segment; 209. Second track segment; 200. Avoidance part; 210. Abutting part; 211. Abutting frame; 213. Fixing part; 300. Guardrail; 301. Tie rod; 302. First connecting part; 303. Second connecting part; 400. Main frame; 401. Side rollover drive component; 402. Side rollover drive bracket. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0021] like Figures 1-12 As shown, a multifunctional nursing bed frame includes: The bed frame body 100 includes a leg bed frame 200 and a backrest bed frame 103 capable of being raised and flipped. The backrest bed frame 103 includes a back support 104 and anti-slip supports 105 disposed on both sides of the back support 104 and rotatably connected thereto. The leg bed frame 200 includes a thigh support 201 and a lower leg support 202 that are hinged together. The backrest drive 106 is mounted on the bed frame body 100. The backrest bed frame 103 is provided with a backrest drive unit 107. The backrest drive unit 107 is provided with an anti-slip drive unit 108. The anti-slip drive unit 108 and the backrest drive unit 107 operate synchronously. The backrest drive unit 107 is connected to the output end of the backrest drive 106. The backrest drive unit 107 has a first working stroke and a second working stroke. When the backrest drive unit 107 is in the first working stroke, the backrest drive unit 107 is not driven by the backrest support 104, while the anti-slip drive unit 108 is driven by the anti-slip support 105; when the backrest drive unit 107 is in the second working stroke, the backrest drive unit 107 is driven by the backrest support 104. The leg drive unit 203 is mounted on the bed frame body 100. The output end of the leg drive unit 203 is connected to the thigh support 201 to control the movement of the thigh support 201. The output end is also provided with a moving part 204. The lower leg support 202 is provided with a track part 205. The track part 205 is provided with a track groove 206. The moving part 204 extends into the track groove 206 and can move within the track groove 206, thereby driving the lower leg support 202 to move.

[0022] The multifunctional nursing bed frame of this application integrates functions such as back lifting and tilting, anti-slip protection, and leg lifting, meeting the various position adjustment needs of bedridden patients in daily care. Regarding the back lifting function, by setting up a back lifting drive unit 107 with first and second working strokes, and integrating a synchronously operating anti-slip drive unit 108 on it, only one back lifting drive unit 106 is needed to achieve the safety control logic of protection first, then back lifting: In the initial stage of back lifting, the anti-slip drive unit 108 prioritizes driving the anti-slip supports 105 on both sides to tilt upwards, forming a lateral limit on the patient's body, effectively preventing the risk of slipping or falling from the bed due to a shift in the center of gravity; after the protection is in place, the back lifting drive unit 107 then engages with the back support 104, pushing it to lift smoothly. The entire process is safe and orderly, improving the comfort and reliability of care.

[0023] In terms of leg adjustment, the output end of the leg drive component 203 is simultaneously connected to the thigh support 201 and a moving part 204 is set to extend into the trajectory groove 206 of the calf support 202. This enables a single drive component to control the linkage between the thigh and calf supports 202. When the drive component moves, it directly drives the thigh support 201 to rise, and the sliding of the moving part 204 in the trajectory groove 206 guides the calf support 202 to move along a preset trajectory, simulating the natural knee-bending posture of the human body, avoiding the legs from being suspended or subjected to improper force, and improving the comfort of use.

[0024] All functional modules of the entire bed frame adopt a mechanical linkage design. Each core function only requires one drive component to complete the coordinated action of multiple parts. This not only greatly reduces the number of drive components, lowers manufacturing costs and failure rates, but also optimizes the internal space layout, making the bed frame more concise and compact.

[0025] like Figures 2-5 As shown, specifically, the back-raising drive unit 107 includes a drive swing block disposed at the bottom of the back-raising bed frame 103. This drive swing block is transmittedly connected to the output end of the back-raising drive unit 106 and can swing under the drive action. The anti-slip drive unit 108 includes a drive swing rod fixed on the drive swing block. The free end of the drive swing rod abuts against the bottom of the anti-slip bracket 105 and forms a transmission engagement. When the back-raising drive unit 106 is activated, the drive swing block begins to swing. During the first working stroke, the rotation of the drive swing block drives the drive swing rod to move synchronously, pushing the anti-slip bracket 105 to flip upward around its hinge point with the back support 104, making it stand up quickly and forming a semi-enclosed protective structure on both sides of the patient's body, thus limiting and wrapping the patient in advance.

[0026] After the anti-slip bracket 105 completes its flip and stabilizes, the drive block continues to move into the second working stroke. At this time, it begins to contact the back support 104 and apply a thrust, thereby driving the back support 104 to rotate upward and realize the lifting function of the back support.

[0027] Based on the above embodiments, if the drive swing block is driven to lift the back support 104 simply by rotation, the drive swing block would be too long and occupy too much space. Therefore, the lifting drive component 106 is further hinged to the bed frame body 100, and its output end can perform linear reciprocating motion. It is connected to the drive swing block through the hinged connecting rod 109, and the drive swing block and the connecting rod 109 are fixedly connected to form a linkage. At the same time, the drive swing rods of the anti-slip drive part 108 are symmetrically arranged at both ends of the connecting rod 109, and their ends abut against the bottom of the anti-slip bracket 105 to push the anti-slip bracket 105 to flip upward. The connecting rod 109 is hinged to the back support 104, forming a lever structure that can swing around the hinge point.

[0028] When the back-lifting drive 106 is activated and extended, its output end pushes the connecting rod 109 to swing around its hinge point. During the first working stroke, it drives the symmetrically arranged drive swing rods to lift synchronously, thereby pushing the anti-slip supports 105 on both sides to flip upwards synchronously, quickly forming a semi-enclosed protective structure on both sides of the patient's body, achieving pre-wrapping and limiting of the patient, effectively preventing lateral slippage or falls during subsequent back-lifting. As the back-lifting drive 106 continues to extend, the connecting rod 109 swings further into the second working stroke. At this time, the swing of the connecting rod 109 causes the drive swing block to contact the back support 104 and generate thrust, thereby driving the back support 104 to flip upwards, completing the back-lifting action.

[0029] Specifically, two hinge blocks 110 are symmetrically arranged on the connecting rod 109, forming a double-point supported swing connection structure. Furthermore, the movable end of the driving swing rod is provided with an abutment roller 111, which rolls in contact with the anti-slip bracket 105. When the connecting rod 109 swings, the driving swing rod applies a thrust to the anti-slip bracket 105 through the abutment roller 111, causing it to flip upwards.

[0030] The connecting rod 109 is arranged perpendicular to the lifting trajectory, serving as a lateral linkage that evenly transmits the thrust of the lifting drive 106 to both ends. When the connecting rod 109 swings under the drive, its two sides move symmetrically with consistent swing angles, ensuring complete synchronization of the displacement and action time of the left and right drive swing arms. This avoids differences in left and right stroke, uneven thrust, or unilateral lag caused by the tilted arrangement of the drive components or the skewed direction of force, ensuring that the anti-slip brackets 105 on both sides can synchronously and smoothly flip upwards before lifting, forming a symmetrical semi-enclosed protective structure, effectively preventing the patient from shifting or slipping due to failure to stand up on one side in time.

[0031] Specifically, the track groove 206 includes a first track segment 207 and a second track segment 208 that are interconnected. Along the length of the bed frame body 100, the first track segment 207 and the second track segment 208 are not parallel. The bends of the first track segment 207 and the second track segment 208 form a clearance part 209. Furthermore, a horizontal abutment frame 211 is also provided on the bed frame body 100. When the leg bed frame 200 is laid flat, the abutment frame 211 abuts against the lower leg support 202.

[0032] The calf support 202 achieves phased controllable linkage during the lifting process. In the initial flat position, one end of the calf support 202 rests against the abutment frame 211, maintaining horizontal stability. When the leg drive component 203 is activated, it drives the thigh support 201 to rise around the hinge point with the calf support 202, and its linkage drives the hinge end of the calf support 202 to rise synchronously. At this time, due to the support of the abutment frame 211 on the free end of the calf support 202, under the combined action of gravity and support force, the moving part 204 slides along the first trajectory segment 207, realizing the relative approach of the calf support 202 to the thigh support 201. When the moving part 204 moves to the avoidance part 209 between the first trajectory segment 207 and the second trajectory segment 208, the moving part 204 is temporarily limited and locked in the avoidance part 209. At this time, the thigh support 201 continues to rise, while the lower leg support 202 no longer rotates relative to it. The two form a fixed angle and rise synchronously as a whole, realizing the overall upward movement of the leg, effectively avoiding the lower leg from being suspended or sudden changes in posture, and improving comfort and safety.

[0033] During the descent, the thigh support 201 moves downward under the drive of the drive component, initially causing the lower leg support 202 to descend as a whole and maintain its posture. When the free end of the lower leg support 202 re-contacts the abutment frame 211, the abutment frame 211 generates a reaction force on it, forcing the moving part 204 to overcome the limiting effect of the avoidance part 209, exit from the avoidance part 209 and slide in the opposite direction into the first trajectory segment 207, thereby entering the reset stage and completing the entire cycle.

[0034] Furthermore, the bed frame body 100 can be rotated relative to the nursing bed as a whole. When the patient needs to get out of bed, the lower leg support 202 can be raised first according to the aforementioned linkage method, so that the thigh support 201 and the lower leg support 202 are raised together at a fixed angle, providing space for rotation. Then, the bed frame body 100 is driven to rotate as a whole, so that the bed frame rotates from its original position to a position that is convenient for getting out of bed. After the rotation is completed, the leg drive component 203 is reset, driving the output end to move downward, thereby driving the thigh support 201 to swing downward.

[0035] During this process, the lower leg support 202 rotates downward around its hinge point with the thigh support 201 under its own weight. The moving part 204 then disengages from the avoidance part 209 of the track groove 206 and slides downward along the second track segment 208, realizing the active flexion and descent of the lower leg support 202. As the thigh support 201 continues to descent, the lower leg support 202, under the combined action of gravity and the guidance of the track groove 206, eventually moves to a position against the bed frame, in a vertical state, while the thigh support 201 returns to a horizontal state, forming a stable posture similar to sitting with legs dangling.

[0036] In this position, the patient's legs hang naturally with their lower legs close to the ground, facilitating foot placement and reducing the difficulty of getting out of bed, thus improving safety and convenience. The entire preparation process for getting out of bed is completed through the reciprocating motion of a single drive component and the rotation of the bed frame body 100, requiring no additional drive or manual intervention. It achieves a fully automatic posture transition from lying flat, raising legs, rotating, to bending legs and hanging down. The ingenious structural design and smooth, reliable movements greatly improve nursing efficiency and user experience, making it particularly suitable for daily getting-up and lying-down care scenarios for patients with limited mobility.

[0037] Based on the above embodiments, the first trajectory segment 207 is set as an arc-shaped groove, the second trajectory segment 208 extends along a straight line, and the output end of the leg drive 203 reciprocates along a straight line. This design is highly matched with the overall linkage logic, further optimizing the smoothness of the movement and the rationality of the structure.

[0038] The leg drive component 203 is mounted to the bed frame body 100 by means of hinge, so that when it performs linear reciprocating motion at the output end, it can automatically adapt to the angle changes generated during the motion, effectively eliminate assembly stress, and improve the stability and service life of the mechanism.

[0039] The linear reciprocating motion at the output end, in conjunction with the arc-shaped first trajectory segment 207, allows the moving part 204 to slide along the arc-shaped groove during the initial stage of leg lifting. This arc-shaped trajectory closely matches the natural swing path of the lower leg support 202 under the support of the abutment frame 211, achieving a low-resistance and smooth unfolding action. When the moving part 204 enters the linearly extending second trajectory segment 208 and reaches the avoidance part 209, the linear groove is aligned with the linear output direction of the drive component, which is beneficial for efficiently transmitting thrust during the locking stage. This ensures that when the thigh support 201 continues to lift, it drives the lower leg support 202 to rise synchronously without any uneven loading or jamming.

[0040] The composite track groove 206 structure, in conjunction with the linear drive component, achieves multi-stage linkage logic with only a single power source, eliminating the need for additional guiding mechanisms or control elements. This significantly simplifies the transmission system and reduces manufacturing costs and maintenance difficulty.

[0041] The drive unit adopts a contact-type transmission connection method. By setting an integral contact part 210 at the output end of the leg drive unit 203, the thrust is transmitted by direct contact between the contact part 210 and the surface of the thigh support 201. This achieves a non-rigid connection between the drive unit and the thigh support 201, which not only ensures the effective transmission of power but also allows for phased separation during movement, thus meeting the needs of complex linkage logic.

[0042] During the leg-raising motion, the leg drive component 203 extends, and its output end drives the abutment part 210 to move forward and contact the thigh support 201. The abutment part 210 applies a pushing force to the thigh support 201, thereby driving the thigh support 201 to rotate upward around the hinge point. At the same time, the moving part 204, fixed on the same abutment part 210, moves synchronously, pushing the lower leg support 202 to achieve linkage deployment and overall lifting through the track groove 206. At this time, the abutment part 210 and the thigh support 201 maintain a stable abutment state, ensuring reliable power transmission.

[0043] During the resetting phase of the leg-bending abduction, when the thigh support 201 retracts with the drive mechanism to a position close to the horizontal level of the bed frame body 100, the thigh support 201 has essentially reset. However, the moving part 204 still needs to continue moving with the output end to disengage from the avoidance part 209 and slide back along the second trajectory segment 208, thereby driving the lower leg support 202 to swing down to a vertical position under gravity. During this process, the abutment part 210 gradually disengages from the thigh support 201 as the drive mechanism continues to retract, achieving automatic decoupling. This phased control, which "first completes the resetting of the thigh support 201, and then continues to drive the movement of the lower leg support 202," benefits from the separable design between the abutment part 210 and the thigh support 201, avoiding reverse tension or structural interference to the thigh support 201.

[0044] It should be noted that, in order to maintain a stable power output between the output end of the leg drive component 203 and the thigh support 201, a fixing part 213 is fixedly provided on the thigh support 201 and hinged to the abutment part 210 to ensure the stability and reliability of power transmission.

[0045] This application, by designing the track groove 206 as a composite structure including a first track segment 207 and a second track segment 208, and combining it with the rotatable setting of the bed frame body 100, achieves differentiated motion path control of the same drive component under different usage scenarios, significantly improving the functionality and safety of the nursing bed. Specifically, the extension and retraction stroke of the leg drive component 203 achieves different functional logics under different working conditions: during the normal leg lifting and repositioning process, the moving part 204 moves along the first track segment 207 to achieve the linkage lifting and synchronous lowering of the thigh and lower leg support 202. At this time, the extension and retraction strokes are matched, and the movement is smooth; when the bed frame body 100 completes the rotation and enters the abdication assistance mode, the retraction action of the leg drive component 203 can drive the moving part 204 to disengage from the avoidance part 209 and move into the second track segment 208, thereby driving the lower leg support 202 to complete active flexion and retraction and swing down to a vertical state under the combined action of gravity and guidance, forming a sitting posture with legs hanging down that facilitates the patient's feet to touch the ground.

[0046] The key to this design is that the moving part 204 is only allowed to enter the second trajectory segment 208 to perform a special reset action after the bed frame body 100 has rotated to its final position, thus achieving logical interlocking of the movement path. Since the retraction stroke of the drive component required for the second trajectory segment 208 is greater than the extension stroke when the leg is raised, if the bed frame does not rotate and the long-stroke retraction is performed directly, the lower leg support 202 will interfere with the bed support structure at the end of the movement, potentially leading to mechanical jamming or damage. Therefore, the rotation of the bed frame body 100 not only provides space for the patient to get out of bed but also serves as a safety prerequisite for triggering the "long-stroke reset mode," forming a physical-level interlocking protection mechanism.

[0047] As shown in the figure, a guardrail 300 is provided on the anti-slip bracket 105, and a tie rod 301 is hinged to the guardrail 300. Specifically, both ends of the tie rod 301 are hinged with a first connecting part 302 and a second connecting part 303. The first connecting part 302 is also hinged to the back bracket 104, and the second connecting part 303 is also hinged to the anti-slip bracket 105. This creates a parallelogram linkage mechanism between the tie rod 301, the anti-slip bracket 105, and the first and second connecting parts 302 and 303. During the upward rotation of the anti-slip bracket 105 around its axis of rotation with the back bracket 104, due to the geometric characteristics of the parallelogram mechanism, the guardrail 300 maintains its initial vertical posture and will not tilt or deflect with the swing of the anti-slip bracket 105. It is worth mentioning that the thigh bracket 201 is also provided with the aforementioned guardrail 300 and tie rod 301.

[0048] As shown in Figure 1-2, the anti-slip nursing bed frame provided in this application not only has a safe and reliable backrest lifting function and anti-slip protection mechanism, but also integrates an overall side-turning function, realizing multi-position coordinated adjustment, which significantly improves the comprehensive performance and clinical applicability of the nursing bed.

[0049] Specifically, it also includes a main frame 400, with a central bed frame 101 arranged along the length of the main frame 400. The backrest bed frame 103 serves as the front end of the central bed frame 101 and can achieve independent lifting of the back support. Side-folding bed frames 102 are symmetrically hinged on both sides of the central bed frame 101. When the bed is laid flat, the side-folding bed frame 102 overlaps the main frame 400 to form stable support. The anti-slip bracket 105 is a component of the side-folding bed frame 102 and becomes one of the execution units for the side-folding movement. It is worth mentioning that other parts of the side-folding bed frame 102 (such as the leg bed frame 200) are also equipped with guardrails 300, which are connected to the corresponding bed frame through a parallelogram linkage mechanism. Since the length of the pull rod 301 is fixed and the hinge relationship is clear, its existence forms a rigid constraint on the movement trajectory of the side-folding bed frame 102: the side-folding bed frame 102 can only fold inward relative to the central bed frame 101 (i.e., rotate towards the center of the bed), and cannot open outward or undergo torsional displacement.

[0050] The bed frame body 100 is also equipped with a side-flipping drive unit 401, the output end of which is driven by the central bed frame 101. By pushing the central bed frame 101 to deflect, the side-flipping bed frame 102 is driven to rotate, thereby realizing the function of flipping the bed frame to the left or right. When the bed frame is in a flat position, the two side-flipping bed frames 102 overlap the main frame 400 to form a complete support plane. When performing the side-flipping operation, the side-flipping drive unit 401 pushes the central bed frame 101 to tilt to one side. At this time, the side-flipping bed frame 102 on the driven side cannot rotate downward and remains stationary because its bottom is in contact with the main frame 400 and is physically limited. A side-flipping angle is formed between the central bed frame 101 and the side-flipping bed frame 102. The side-flipping bed frame 102 on the other side is pulled by the pull rod 301 and follows the central bed frame 101, and is still located in the same plane direction.

[0051] The side-tilting drive bracket 402 is located below the central bed frame 101, with both ends rotatably connected to the main frame 400 of the bed frame body 100, forming a stable rotation fulcrum; one end is hinged to the output end of the side-tilting drive component 401, constituting a push-pull drive unit. The side-tilting drive component 401, through its telescopic movement, drives the side-tilting drive bracket 402 to swing back and forth around its hinge point with the frame, thereby pushing the central bed frame 101 to tilt to the left or right, achieving overall side-tilting control. When the drive component extends, it pushes the side-tilting drive bracket 402 to swing, causing the central bed frame 101 to tilt to one side, achieving a leftward tilt. When the drive unit retracts, it pulls the side-tilting drive bracket 402 to swing in the opposite direction, causing the central bed frame 101 to tilt to the other side, thus achieving a rightward tilt.

[0052] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A multifunctional nursing bed frame, characterized in that, include: The main body of the bed frame includes a backrest bed frame with a leg frame that can be raised and flipped, the backrest bed frame including a back support and anti-slip supports disposed on both sides of the back support and rotatably connected thereto; the leg frame includes a thigh support and a lower leg support that are hinged together. A backrest drive unit is provided on the bed frame body. The backrest bed frame is provided with a backrest drive part. The backrest drive part is provided with an anti-slip drive part. The anti-slip drive part and the backrest drive part operate synchronously. The backrest drive part is connected to the output end of the backrest drive unit. The backrest drive part has a first working stroke and a second working stroke. Specifically, when the backrest drive unit is in the first working stroke, the backrest drive unit is not driven by the backrest support, but the anti-slip drive unit is driven by the anti-slip support; when the backrest drive unit is in the second working stroke, the backrest drive unit is driven by the backrest support. A leg drive unit is disposed on the bed frame body. The output end of the leg drive unit is connected to the thigh support and is used to control the movement of the thigh support. The output end is also provided with a drive part. The lower leg support is provided with a track part and a track groove is provided in the track part. The drive part extends into the track groove and can move in the track groove, thereby driving the lower leg support to move.

2. The multifunctional nursing bed frame according to claim 1, characterized in that, The backrest drive unit includes a drive swing block disposed at the bottom of the backrest bracket and rotatable relative to it; the anti-slip drive unit includes a drive swing rod disposed at the bottom of the anti-slip bracket, the end of the drive swing rod abutting against the anti-slip bracket, and the drive swing rod being fixed to the drive swing block.

3. A multifunctional nursing bed frame according to claim 1 or 2, characterized in that, The backrest lifting drive is hinged to the bed frame body. The output end of the backrest lifting drive can move linearly back and forth. A connecting rod is hinged to the output end. The drive swing block is fixed to the connecting rod. The drive swing rod is symmetrically arranged at both ends of the connecting rod. The connecting rod is hinged to the backrest support.

4. A multifunctional nursing bed frame according to claim 3, characterized in that, The length extension direction of the connecting rod is perpendicular to the direction of the back support's back-mounting trajectory.

5. A multifunctional nursing bed frame according to claim 1, characterized in that, The track groove includes a first track segment and a second track segment that are interconnected. The first track segment and the second track segment are not parallel along the length of the bed frame body. The bends of the first track segment and the second track segment form a clearance part. A support frame is also horizontally arranged on the bed frame body. When the leg bed frame is laid flat, the support frame abuts against the lower leg support.

6. A multifunctional nursing bed frame according to claim 5, characterized in that, The first trajectory segment is an arc-shaped groove, the second trajectory segment extends in a straight line, the leg drive is hinged to the bed frame body, and its output end can move linearly back and forth.

7. A multifunctional nursing bed frame according to claim 1 or 5, characterized in that, The output end of the leg drive component is fixedly provided with an abutment portion, which abuts against the thigh support to achieve power transmission, and the drive component is fixedly provided on the abutment portion.

8. A multifunctional nursing bed frame according to claim 5, characterized in that, When the leg bed frame is in a flat position, the second trajectory segment is located in the horizontal direction.

9. A multifunctional nursing bed frame according to claim 5, characterized in that, Only after the bed frame body rotates can the leg drive component drive the drive part to extend into the second trajectory segment.

10. A nursing bed, characterized in that, Including the multifunctional nursing bed frame as described in any one of claims 1-9 above.

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