A nursing bed frame sliding anti-dislocation lifting mechanism

Abstract

The utility model relates to medical nursing equipment technical field, especially nursing bed frame sliding anti -dislocation elevating system. Including back motor connecting mechanism, back motor connecting mechanism includes back linear driver, connecting seat, back I type connecting mechanism, back I type connecting mechanism includes base, connecting piece, back L type connecting mechanism, back L type connecting mechanism includes guide rail, side edge guide pulley and L type fixed piece. The back frame in this structure is driven directly by push rod motor, when push rod motor promotes the back frame to rise, main guide pulley moves along the back of back frame, because of the design of back I type connecting mechanism, side edge guide pulley will roll along guide rail towards the side away from hip frame synchronously, then back frame can translate towards the direction away from hip frame synchronously in the rising process, and the greater back frame rising angle is, the farther back frame distance hip frame is, thereby make patient hip pressure dispersion, reduce the risk of pressure sore of patient skin.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing equipment technology, and in particular to a sliding anti-dislocation lifting mechanism for a nursing bed frame. Background Technology

[0002] Current medical care beds generally use a U-shaped profile track combined with polyethylene resin sliding blocks for their back lifting mechanism, which has two major drawbacks: 1. Risk of disengagement: The U-shaped track has an open structure, and the resin sliding block is prone to wear and detachment after long-term friction. In addition, during the lifting process, the back panel of the medical bed may rise excessively, causing the resin sliding block to rise and detach from the U-shaped track, which will eventually lead to the failure of the lifting function. 2. Poor pressure distribution: When the back is lifted, the pressure zone on the buttocks cannot adapt to shift backward, increasing the risk of pressure sores on the patient's skin. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a nursing bed frame sliding anti-dislocation lifting mechanism that prevents the guide wheels from falling off the U-shaped profile track and reduces the shearing pressure on the buttocks.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a sliding anti-dislocation lifting mechanism for a nursing bed frame, which is installed on the bed frame. The top of the bed frame also has a back frame and a hip frame adjacent to each other. Its innovation lies in: including... A back motor connection mechanism includes a back linear driver and a connecting seat. The connecting seat includes a first connecting member and a second connecting member that are hinged together. The extension side of the first connecting member is fixedly installed at the bottom of the hip frame, and the extension side of the second connecting member is slidably disposed at the bottom of the back frame. The output end of the back linear driver is connected to the second connecting member. The back I-shaped connection mechanism is provided inside both sides of the width of the bed frame. The back I-shaped connection mechanism includes a base and a connecting piece. The base is fixedly installed at the bottom of the back frame. One side of the connecting piece is rotatably connected to the base, and the other side of the connecting piece is also rotatably connected to the bed frame. The back L-shaped connection mechanism is provided on both sides of the bed frame width. The back L-shaped connection mechanism includes a guide rail, side guide wheels and an L-shaped fixing plate. One side of the L-shaped fixing plate is fixed to the bottom of the back frame, and the other side of the L-shaped fixing plate is equipped with the side guide wheel. The side guide wheel is located in the guide rail, and the guide rail is an anti-drop guide rail.

[0005] Furthermore, the guide rail includes an upper limit plate and a lower limit plate, and both the upper limit plate and the lower limit plate are formed by bending a whole plate of carbon steel. The upper limit plate is L-shaped, including an upper horizontal section and a lower vertical section. The lower vertical section is fixedly installed on the bed frame, so that the upper horizontal section extends outward from the bed frame. The lower limit plate includes a straight plate body. One side of the width of the straight plate body is fixed on the bed frame, and the other side extends outward from the bed frame. The two sides of the length of the straight plate body are folded upward to form arc-shaped limiting ears. Thus, a guide rail is formed between the upper limit plate and the lower limit plate to accommodate the side guide wheel moving along the length direction of the bed frame. The guide rail provides continuous, smooth, stepless guidance for the lifting and lowering of the back frame, and integrates control over the upper and lower limit height difference. It also provides precise guidance for the side guide wheels throughout the entire process, ensuring smooth, non-deviation-free, and jam-free lifting of the back frame.

[0006] Furthermore, a master wheel is mounted on the extended side of the second connector.

[0007] Furthermore, the connecting seat is formed by integral carbon steel plate sheet metal stamping.

[0008] Furthermore, the base is formed by bending a plate and has a bottom vertical U-groove and a bottom vertical U-groove. The bottom vertical U-groove is aligned with the side of the back frame for fixing, and the top vertical U-groove is used to accommodate one side of the connecting piece that extends in and is connected by a positioning pin.

[0009] Furthermore, the arc angle of the arc-shaped limiting ear is 0-90°.

[0010] Furthermore, the back linear actuator is a pushrod motor.

[0011] The advantages of this utility model are: 1. The back frame in this structure is directly driven by a push rod motor. When the push rod motor pushes the back frame to rise, the main guide wheel moves along the back of the back frame. Due to the design of the back I-type connection mechanism, the side guide wheels will roll synchronously along the guide rail toward the side away from the hip frame. Thus, the back frame can move synchronously toward the direction away from the hip frame during the rising process, thereby dispersing the pressure on the patient's hips, reducing the risk of pressure sores on the patient's skin, and this mechanical path is the shortest and most labor-saving.

[0012] 2. In this structure, side guide wheels are used instead of resin sliders, and the guide rail is an anti-detachment guide rail composed of an upper limit plate and a lower limit plate, which can avoid the risk of the side guide wheels falling off during the movement inside the guide rail, thus ensuring high safety performance.

[0013] 3. The L-shaped back connection mechanism in this structure rigidly locks the lifting stroke, completely eliminating the risk of the back frame shifting to the left or right when lifting the back.

[0014] 4. The L-shaped backrest connection mechanism and the backrest motor connection mechanism form a dual guide, which can smoothly slide into place in one go during the backrest lifting process and automatically compensate for the height difference between the upper and lower parts without the need for additional adjustment.

[0015] 5. In this structure, the gap between the back frame and the hip frame increases as the upward angle of the back frame gradually increases, thereby dispersing the pressure on the user's hips and reducing the risk of compression on the user's hips. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 Enlarged view of part of the structure of this utility model Figure 1 .

[0018] Figure 3 Enlarged view of part of the structure of this utility model Figure 2 . Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] like Figures 1-3 The above describes a sliding anti-dislocation lifting mechanism for a nursing bed frame. The mechanism is installed on the bed frame 1, and a back frame 2 and a hip frame 3 are also provided adjacent to each other on the top of the bed frame 1.

[0021] The nursing bed frame sliding anti-dislocation lifting mechanism includes a back motor connection mechanism 4, a back I-type connection mechanism 5, and a back L-type connection mechanism 6.

[0022] The back motor connection mechanism 4 includes a back linear driver and a connecting seat, which is a one-piece carbon steel plate formed by sheet metal stamping.

[0023] In this embodiment, the back linear actuator is a push rod motor. The connecting seat includes a first connecting member 41 and a second connecting member 42 that are hinged together. The extended side of the first connecting member 41 is fixedly installed at the bottom of the hip frame 3. The extended side of the second connecting member 42 is equipped with a master guide wheel, which is a double-sided guide wheel. The master guide wheel is slidably set at the bottom of the back frame 2. The push rod motor is fixedly connected to the bottom of the bed frame 1. The output end of the push rod motor is also connected to the middle of the second connecting member 42 through a pin.

[0024] In this embodiment, the first connecting member 41 is a first connecting plate, and the second connecting member 42 is a second connecting plate. The adjacent sides of the first connecting plate and the second connecting plate are hinged together. The middle part of the second connecting plate is also provided with a high-precision pin hole 43 on the side away from the back frame 2, which is used to rigidly lock the output end of the push rod motor with a "one-insert-one-pull" pin, with zero gap and zero looseness, and tool-free disassembly and assembly.

[0025] The bed frame 1 has a back I-type connection mechanism 5 on both sides of its width. The back I-type connection mechanism 5 includes a base 51 and a connecting piece 52. The base 51 is fixedly installed at the bottom of the back frame 2. One side of the connecting piece 52 is rotatably connected to the base 51 through a positioning pin. The other side of the connecting piece 52 is also rotatably connected to the bed frame 1 through a positioning pin, forming a closed rigid channel and completely eliminating lateral offset.

[0026] The base 51 is formed by bending a plate and has a bottom vertical U-groove 511 and a top vertical U-groove 512. The bottom vertical U-groove 511 is aligned with the side of the back frame 2 and fixed. The top vertical U-groove 512 is used to accommodate one side of the connecting piece 52 and is connected by a positioning pin.

[0027] The bed frame 1 has L-shaped backrest connection mechanisms 6 on both sides of its width. The L-shaped backrest connection mechanisms 6 rigidly lock the lifting stroke, completely eliminating the risk of the back frame 2 tilting to the left or right when the back is raised.

[0028] Furthermore, the L-shaped back connection mechanism 6 and the back motor connection mechanism 4 form a dual guide, which can smoothly slide into place in one go during the back lifting process and automatically compensate for the difference in height between the upper and lower parts without the need for additional adjustment.

[0029] The L-shaped connecting mechanism 6 at the back includes a guide rail 61, a side guide wheel 62, and an L-shaped fixing plate 63. The horizontal section of the L-shaped fixing plate 63 is fully welded to the bottom surface of the back frame 2. The vertical section of the L-shaped fixing plate 63 faces the guide rail 61 and is fitted with the side guide wheel 62 by screws or pins. The side guide wheel 62 is located inside the guide rail 61, and the guide rail 61 is an anti-drop guide rail 61. The side guide wheel 62 includes an engineering plastic wheel body and a metal bearing structure. The rim width is 1.5 times greater than the thickness of the guide rail 61, and its wear resistance is significantly improved compared to existing resin sliders. The thickness of guide rail 61 is the standard thickness of sheet metal in the market, and its surface has an anti-rust coating.

[0030] The guide rail 61 includes an upper limit plate 611 and a lower limit plate 612, and both the upper limit plate 611 and the lower limit plate 612 are formed by bending a whole plate of carbon steel.

[0031] The upper limit plate 611 is L-shaped, including an upper horizontal section and a lower vertical section. The lower vertical section is fixedly installed on the bed frame 1, so that the upper horizontal section extends outward from the bed frame 1.

[0032] The lower limit plate 612 includes a straight plate body. One side of the width of the straight plate body is fixed to the bed frame 1, and the other side of the width extends outward from the bed frame 1. The two sides of the length of the straight plate body are folded upward to form arc-shaped limiting ears. The arc angle of the arc-shaped limiting ears is 0-90°. Then, a guide rail 61 is formed between the upper limit plate 611 and the lower limit plate 612 to accommodate the side guide wheel 62 moving along the length direction of the bed frame 1.

[0033] The guide rail 61 provides continuous, smooth, stepless guidance for the lifting and lowering of the back frame 2, and controls the upper and lower limit height difference in one piece. It also provides precise guidance for the side guide wheels 62 throughout the entire process, so as to achieve smooth, non-offset, and non-jamming lifting of the back frame.

[0034] In this structure, the side guide wheel 62 is used instead of the resin slider, and the guide rail 61 is an anti-detachment guide rail 61 composed of the upper limit plate 611 and the lower limit plate 612, which can avoid the risk of the side guide wheel 62 falling off during the movement inside the guide rail 61, and has high safety performance.

[0035] The working principle of this patent: When it is necessary to raise the back frame 2, the push rod motor is started to directly push the back frame 2 upward. The main guide wheel moves along the back of the back frame 2. Due to the design of the back I-type connecting mechanism 5, the side guide wheel 62 will roll synchronously along the guide rail 61 toward the side away from the hip frame 3. Thus, the back frame 2 can be translated 30-80mm away from the hip frame 3 during the rising process. The greater the rising angle of the back frame 2, the greater the distance between the back frame 2 and the hip frame 3, thereby dispersing the pressure on the patient's buttocks, reducing the shear pressure on the buttocks, and reducing the risk of pressure sores on the patient's skin. Moreover, this mechanical path is the shortest and most labor-saving.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sliding anti-dislocation lifting mechanism for a nursing bed frame, the mechanism being installed on the bed frame, wherein a back frame and a hip frame are also adjacent to each other at the top of the bed frame, characterized in that: include A back motor connection mechanism includes a back linear driver and a connecting seat. The connecting seat includes a first connecting member and a second connecting member that are hinged together. The extension side of the first connecting member is fixedly installed at the bottom of the hip frame, and the extension side of the second connecting member is slidably disposed at the bottom of the back frame. The output end of the back linear driver is connected to the second connecting member. The back I-shaped connection mechanism is provided inside both sides of the width of the bed frame. The back I-shaped connection mechanism includes a base and a connecting piece. The base is fixedly installed at the bottom of the back frame. One side of the connecting piece is rotatably connected to the base, and the other side of the connecting piece is also rotatably connected to the bed frame. The back L-shaped connection mechanism is provided on both sides of the bed frame width. The back L-shaped connection mechanism includes a guide rail, side guide wheels and an L-shaped fixing plate. One side of the L-shaped fixing plate is fixed to the bottom of the back frame, and the other side of the L-shaped fixing plate is equipped with the side guide wheel. The side guide wheel is located in the guide rail, and the guide rail is an anti-drop guide rail.

2. The nursing bed frame sliding anti-dislocation lifting mechanism according to claim 1, characterized in that: The guide rail includes an upper limit plate and a lower limit plate, and both the upper limit plate and the lower limit plate are formed by bending a whole plate of carbon steel. The upper limit plate is L-shaped, including an upper horizontal section and a lower vertical section. The lower vertical section is fixedly installed on the bed frame, so that the upper horizontal section extends outward from the bed frame. The lower limit plate includes a straight plate body. One side of the width of the straight plate body is fixed on the bed frame, and the other side extends outward from the bed frame. The two sides of the length of the straight plate body are folded upward to form arc-shaped limiting ears. Thus, a guide rail is formed between the upper limit plate and the lower limit plate to accommodate the side guide wheel moving along the length direction of the bed frame.

3. The nursing bed frame sliding anti-dislocation lifting mechanism according to claim 1, characterized in that: A master wheel is mounted on the extended side of the second connector.

4. The nursing bed frame sliding anti-dislocation lifting mechanism according to claim 1, characterized in that: The connecting seat is made of one-piece carbon steel plate through sheet metal stamping.

5. The nursing bed frame sliding anti-dislocation lifting mechanism according to claim 1, characterized in that: The base is formed by bending a plate and has a bottom vertical U-groove and a bottom vertical U-groove. The bottom vertical U-groove is aligned with the side of the back frame for fixing, and the top vertical U-groove is used to accommodate one side of the connecting piece that extends in and is connected by a positioning pin.

6. The nursing bed frame sliding anti-dislocation lifting mechanism according to claim 2, characterized in that: The arc angle of the arc-shaped limiting ear is 0-90°.

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