A turning-over mechanism capable of turning over a semi-bed left and right and preventing side slipping
Patent Information
- Application Number
- CN202522117318.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0003]四段八片式床板结构的缺点：左右床板是半床板翻转，翻身时使用者的体感不适；无防侧滑功能，翻身时可能导致过翻倾倒、侧滑挤向护栏等意外情况，造成人身伤害或恐慌心理；四段十二片式床板结构的缺点：床板结构的翻转支撑件在床板下部占据较大空间，不便于床板下面布置其它功能性结构，限制了其功能拓展；支撑件笨重，增加了床的质量和制造成本；防侧滑的床板边侧面积较大，不太符合人体工程学形态，使用者体感并不理想；三个托臂的翻身床多了一对单独的翻身转臂结构，且床垫和床单形状复杂，整体制造成本高，后期使用较为繁琐
[0015]通过设置床面横向设置两个中间板和两个侧板，在转子、钣金夹片、转销、翻身转臂的串连作用下，推压一侧的中间板和侧板整体翻起，拨动另一侧仅侧板向上折起，使翻起面、不动面和防滑面三折构成贴近人体横向轮廓的空间，符合人机工程学原理，在防止翻身侧滑的同时，减轻肢体的挤压不适感，增强安全感。
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Figure CN224806683U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical beds and nursing beds, and in particular to a turning mechanism that enables the left and right rotation of half of the bed surface and prevents lateral slippage. Background Technology
[0002] In nursing, rehabilitation, and medical settings, the ability to turn over is crucial for the user's health, and the anti-slip design during this process directly impacts the user's safety and comfort. Currently, most beds of this type on the market employ a four-section, eight-piece bed board structure. However, due to limitations in the bed board assembly and surface shape, this structure makes it difficult to provide ergonomic support for the user's body during turning, and carries a risk of slippage. To improve the anti-slip issue, some beds use a four-section, twelve-piece bed board design. By increasing the number of bed boards and optimizing the splicing method, this enhances support and fixation for the user's body, effectively reducing the risk of slippage during turning. In addition, a very small number of beds are equipped with a three-arm turning device. These arms can adjust their position and angle in tandem with the turning motion, providing dynamic support for the patient and achieving anti-slip functionality through a coordinated mechanism.
[0003] The disadvantages of a four-section, eight-piece bed board structure are as follows: the left and right bed boards are only half-boards that flip, causing discomfort for the user when turning over; there is no anti-slip function, which may lead to overturning, tipping over, or sliding against the guardrail, causing personal injury or panic. The disadvantages of a four-section, twelve-piece bed board structure are as follows: the flipping support structure occupies a large space under the bed board, making it inconvenient to arrange other functional structures under the bed board and limiting its functional expansion; the support structure is bulky, increasing the weight and manufacturing cost of the bed; the anti-slip bed board has a large side area, which is not very ergonomic and the user experience is not ideal; a three-arm flipping bed has an additional pair of separate flipping arms, and the mattress and sheet have complex shapes, resulting in high overall manufacturing costs and cumbersome use. Therefore, to solve the above problems, this application provides a flipping mechanism that can achieve left and right flipping of half the bed surface and prevent slipping. Utility Model Content
[0004] A turning mechanism that enables the left and right flipping of a half-bed surface and prevents lateral slippage includes two intermediate plates rotatably connected to the bed body on the inner side of the bed surface, and two side plates rotatably connected to the outer sides of the two intermediate plates in one direction. The mechanism is characterized by: including a rotor as an integral drive, the central shaft of the rotor being rotatably connected to the bed body, sheet metal clips being fixedly connected to the rotor, and two turning levers being rotatably connected to the sheet metal clips through two pivot pins, the turning levers having two mating surfaces A and B, and a rotating lever arm that mates with the turning lever arm being provided on the lower inner side of the side plate;
[0005] When the rotor rotates, one turning arm rotates upward around the rotor's central axis under the combined push of mating surface A and a pivot pin on the same side, pressing down the rotating arm on the same side and driving the middle plate and side plate on one side to rotate upward synchronously; at the same time, another turning arm rotates downward around the rotor's central axis under the push of mating surface B and another pivot pin, turning the rotating arm to drive the side plate on the other side to rotate upward, forming a turning anti-slip structure in which one side of the bed surface is flipped up as a whole and only the side plate on the opposite side is folded down.
[0006] By setting a rotor and connecting sheet metal clamps to the rotor, the sheet metal clamps are rotatably connected to a turning arm via a pivot pin. The turning arm has A and B mating surfaces, so that when the rotor rotates, the device rotates by turning the turning arm and rotating the arm together, ultimately causing one side middle plate and side plate to rotate upwards in the same direction as the rotor, while the other side plate folds upwards separately, achieving turning while ensuring anti-slip after turning.
[0007] Preferably, the upper end of the turning arm is rotatably connected to a roller via a fixing screw.
[0008] Preferably, the lower end of the turning arm has an arc-shaped mating surface A and a mating surface B on the adjacent side, which are connected and can respectively fit with the central shaft of the rotor.
[0009] Preferably, the top ends of the two rotating arms are fixedly connected to the lower part of their respective side plates. A horizontal support is also provided on the inner side above the rotating arms. When the bed surface is horizontal, the horizontal support is attached to the lower plane of the middle plate that is close to it and is above the roller.
[0010] Preferably, the two rotating levers are provided with an inclined support platform at the bottom end facing the rotor side. When the bed surface is horizontal, the inclined surface of the support platform is below the roller and there is a 2mm gap between it and the roller. At this time, the turning levers are not subject to the force of the bed board structure.
[0011] Preferably, a bearing housing is provided on the outer side of the central shaft of the rotor, and the bearing housing is connected to the bed frame to ensure the stability of the rotor position.
[0012] Preferably, a drive motor is provided at the end of the rotor, one end of the drive motor is rotatably connected to the end of the rotor via a pivot pin, and the other end is connected to the bed frame.
[0013] Preferably, the rotor is fixedly connected to a sheet metal clamp with two pivot pins.
[0014] In summary, this application includes the following beneficial technical effects:
[0015] By setting two middle plates and two side plates horizontally on the bed surface, under the series action of the rotor, sheet metal clamps, pivot pins, and turning arms, the middle plate and side plate on one side are pushed up as a whole, while the side plate on the other side is turned up only. This creates a space that closely follows the horizontal contour of the human body by folding the flipped-up surface, the stationary surface, and the anti-slip surface together. This conforms to the principles of ergonomics, prevents slippage during turning, reduces the discomfort of limb compression, and enhances the sense of security. Attached Figure Description
[0016] Figure 1 It is the isometric drawing in Embodiment 1 of this application;
[0017] Figure 2 This is a front view of Embodiment 1 of this application;
[0018] Figure 3 This is a structural diagram of the toggle arm in Embodiment 1 of this application;
[0019] Figure 4 This is a schematic diagram of the flipping process in Embodiment 1 of this application.
[0020] Explanation of reference numerals in the attached drawings: 1. Rotor; 2. Tilting arm; 21. Mating surface B1; 22. Mating surface B2; 23. Mating surface A1; 24. Mating surface A2; 3. Turning pin; 4. Roller; 5. Fixing screw; 6. Middle plate; 7. Side plate; 8. Rotating arm; 9. Drive motor; 10. Bearing housing; 11. Sheet metal clamp. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0022] Example 1:
[0023] A turning mechanism that enables the left and right flipping of a half-bed surface and prevents lateral slippage includes two intermediate plates 6 that are rotatably connected to the bed body on the inner side of the bed surface, and two side plates 7 that are rotatably connected to the outer side of the two intermediate plates 6 in one direction. It also includes a rotor 1 as a whole drive. The central shaft of the rotor 1 is rotatably connected to the bed body. Sheet metal clips 11 are fixedly connected to the rotor 1. Two turning arms 2 are rotatably connected to the sheet metal clips 11 through two pivot pins 3. The turning arms 2 are provided with two mating surfaces A and B. A rotating arm 8 that mates with the turning arms 2 is provided on the lower inner side of the side plate 7.
[0024] When rotor 1 rotates, one turning lever 2 rotates upward around the central axis of rotor 1 under the joint push of mating surface A and a pivot pin 3 on the same side, pressing down the rotating lever on the same side and driving the middle plate 6 and side plate 7 on one side to rotate upward synchronously; at the same time, another turning lever 2 rotates downward around the central axis of rotor 1 under the push of mating surface B and another pivot pin 3, and the rotating lever drives the side plate 7 on the other side to rotate upward, forming a turning anti-slip structure in which one side of the bed surface is flipped up as a whole and only the side plate on the opposite side is folded down.
[0025] The upper end of the turning arm 2 is rotatably connected to the roller 4 via a fixing screw 5. The roller 4 acts as a rolling motion pair, with smooth movement, low noise, and no wear on the contact surface. They are symmetrically distributed in pairs, ensuring even force distribution. When the bed surface is horizontal, there is a small gap between the roller 4 and the middle plate 6, which is less than 1mm.
[0026] The tops of the two rotating arms 8 are fixedly connected to the bottom of their respective side plates 7. A horizontal support is also provided on the inner side above the rotating arms 8. When the bed surface is horizontal, the horizontal support is attached to the lower plane of the middle plate 6 that is close to it, and above the roller 4.
[0027] Below the two rotating levers 8, there is an inclined support platform with the bottom end facing the rotor 1. When the bed surface is horizontal, the inclined surface of the support platform is below the roller 4 and there is a 2mm gap between it and the roller 4. At this time, the turning lever 2 is not subject to the force of the bed board structure.
[0028] A bearing housing 10 is provided on the outer side of the central shaft of rotor 1. The bearing housing 10 is connected to the bed frame to ensure the stability of rotor 1.
[0029] The lower end of the turning arm 2 has two arc-shaped mating surfaces, A and B, which are connected to each other and can respectively fit into the central shaft of the rotor 1. The mating surface A includes mating surface A1 23 and mating surface A2 24, and the mating surface B includes mating surface B1 21 and mating surface B2 22, which are arranged in a mirror symmetrical manner.
[0030] A drive motor 9 is installed at the end of the rotor 1. One end of the drive motor 9 is rotatably connected to the end of the rotor 1 through a pivot pin 3, and the other end is connected to the bed frame.
[0031] Operation process:
[0032] 1. Initial state:
[0033] When the externally connected push rod motor is in the middle of its stroke, the cylindrical surfaces of the rollers 4 on the two turning arms 2 are close to the bottom surface of the intermediate plate 6 (with a small distance of less than 1mm, at which time the surface of the rollers 4 is 2mm away from the inner side of the rotating arm 8 on the side plate 7), and are in a symmetrical state and are not subject to the force of the bed board; the mating surfaces A123 and A224 of the two turning arms 2 are in contact with the central shaft surface of the turning rotor 1 (concentric), and the bed board is horizontal.
[0034] 2. When turning over to one side (half of the bed board turns over, and the other side panel 7 flips over to prevent side slipping):
[0035] a. Start the drive motor 9 to extend the push rod and push the turning rotor 1 to rotate to the limit position. Through the pivot pin 3, push the turning arm 2 to rotate upward to the highest position. The mating surface A1 23 on the turning arm 2 contacts and engages with the central shaft surface of the turning rotor 1 (concentric). The roller 4 pushes the intermediate plate 6 to flip to the highest position, realizing the turning on one side.
[0036] b. During the turning process, the opposite side pivot pin 3 pushes the opposite side turning arm 2 to rotate downwards by a certain angle. The mating surface B2 22 on the opposite side turning arm 2 contacts and engages with the central shaft surface of the turning rotor 1 (concentric). The roller 4 presses down on the inner side of the opposite side rotating arm 8, causing the opposite side bed side plate 7 to rotate by a certain angle, thus achieving anti-slip on the other side.
[0037] 3. Reset:
[0038] The push rod of the start drive motor 9 retracts to the middle position of its stroke. Under the action of gravity, the intermediate plate 6 applies pressure to the roller 4, causing the turning arm 2 to return to its initial state; under the action of gravity, the opposite side plate 7 applies pressure to the roller 4 by rotating the arm 8, causing the opposite side turning arm 2 to return to its initial state, thus achieving a safe reset.
[0039] 4. Turn over to the other side and return to the starting position: Perform the same steps as 2 and 3.
[0040] The foregoing described an exemplary embodiment of a turning mechanism that enables the left and right rotation of a half-bed surface and prevents lateral slippage, with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure, without exceeding the protection scope of this disclosure, which is determined by the appended claims.
Claims
1. A turning mechanism that enables the left and right rotation of a half-bed surface and prevents lateral slippage, comprising two intermediate plates (6) rotatably connected to the bed frame on the inner side of the bed surface, and two side plates (7) rotatably connected to the outer sides of the two intermediate plates (6) in one direction, characterized in that: It also includes a rotor (1) as the whole drive. The central shaft of the rotor (1) is rotatably connected to the bed. Sheet metal clamps (11) are fixedly connected to the rotor (1). Two turning arms (2) are rotatably connected to the sheet metal clamps (11) through two pivot pins (3). The turning arms (2) are provided with two mating surfaces A and B. A rotating arm (8) that mates with the turning arms (2) is provided on the lower inner side of the side plate (7). When the rotor (1) rotates, a turning lever (2) rotates upward around the central axis of the rotor (1) under the joint push of mating surface A and a pivot pin (3) on the same side, pressing down the rotating lever on the same side to drive the middle plate (6) and side plate (7) on one side to rotate upward synchronously; at the same time, another turning lever (2) rotates downward around the central axis of the rotor (1) under the push of mating surface B and another pivot pin (3), and the rotating lever drives the side plate (7) on the other side to rotate upward, forming a turning anti-slip structure in which one side of the bed surface is turned up as a whole and only the side plate on the opposite side is folded down.
2. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: The upper end of the turning lever (2) is rotatably connected to the roller (4) by a fixing screw (5).
3. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: The lower end of the turning arm (2) is provided with arc-shaped mating surfaces A and B on the side close to each other. The two are connected and can be fitted to the central shaft of the rotor (1) respectively.
4. The turning mechanism according to claim 2, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: The top ends of the two rotating levers (8) are fixedly connected to the bottom of their respective side plates (7). A horizontal support is also provided on the inner side above the rotating levers (8). When the bed surface is horizontal, the horizontal support is attached to the lower plane of the middle plate (6) that is close to it, and above the roller (4).
5. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: The two rotating levers (8) are provided with an inclined support platform with the bottom end facing the rotor (1) side. When the bed surface is horizontal, the inclined surface of the support platform is below the roller (4) and there is a 2mm gap between it and the roller (4). At this time, the turning lever (2) is not subject to the force of the bed board structure.
6. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: A bearing seat (10) is provided on the outside of the central shaft of the rotor (1). The bearing seat (10) is connected to the bed frame to ensure the stability of the rotor (1).
7. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: A drive motor (9) is provided at the end of the rotor (1). One end of the drive motor (9) is rotatably connected to the end of the rotor (1) through a pivot pin (3), and the other end is connected to the bed frame.
8. The turning mechanism according to claim 1, which enables the left and right rotation of the half-bed surface and prevents lateral slippage, is characterized in that: Sheet metal clips (11) are fixedly connected to the rotor (1), and two pivot pins (3) are provided on the sheet metal clips (11).