Head bed board turning mechanism for nursing bed

Abstract

The head bed board turning mechanism comprises a head bed board, a sliding way perpendicular to the width direction of the nursing bed is arranged on the back of the head bed board, the rear end of the head bed board is hinged to the front end of a back bed board, and the back face of the front portion of the back bed board is fixedly connected with one end of a fixing board. The other end of the fixing plate is hinged to a bent part of a crank, a pulley is installed at the front end of the crank and can slide along a sliding way, and the rear end of the crank is connected with a pulling mechanism. According to the head bed board turning mechanism for the nursing bed, when the back bed board is lifted, the head bed board can be turned along with the back bed board, the head of a user is supported, and the neck fatigue of the user when the user keeps a sitting posture or a semi-lying state for a long time is avoided.

Description

Technical Field

[0001] This utility model relates to the field of nursing bed technology, and in particular to a headboard flipping mechanism for a nursing bed. Background Technology

[0002] Nursing beds are medical assistive devices designed specifically for people with limited mobility (such as long-term bedridden patients, the elderly, postoperative patients, paralyzed patients, etc.). Their core function is to achieve body position adjustment through mechanical or electric structures, thereby improving nursing efficiency and the user's quality of life.

[0003] Nursing beds typically have a backrest that can be raised 0-75°, allowing patients to transition from a supine to a sitting position. This can reduce pulmonary effusion, lower the risk of aspiration pneumonia, and alleviate poor blood circulation caused by prolonged lying down. Furthermore, it facilitates light activity, slows muscle atrophy, and boosts confidence in recovery; it also helps patients participate in social activities, reduces depression caused by prolonged bed rest, and improves their quality of life.

[0004] Most nursing beds on the market currently use a headboard and a backboard that are raised together. After being raised, the headboard and backboard are still on the same plane. However, when the user is lying or sitting, their head is in a vertical position. Therefore, the headboard cannot provide enough support for the user's head, which can easily cause neck fatigue.

[0005] Therefore, there is an urgent need in the field to design a headboard flipping mechanism for nursing beds, so that when the backboard is raised, the headboard can flip accordingly to maintain support for the user's head. Utility Model Content

[0006] The purpose of this invention is to provide a headboard flipping mechanism for a nursing bed.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A headboard flipping mechanism for a nursing bed includes a headboard with a slide rail on its back perpendicular to the width of the nursing bed. The rear end of the headboard is hinged to the front end of a backboard. The back of the front part of the backboard is fixedly connected to one end of a fixed plate, and the other end of the fixed plate is hinged to the curved part of a crank. A pulley is mounted on the front end of the crank, which can slide along the slide rail. The rear end of the crank is connected to a pulling mechanism.

[0009] When the pulling mechanism is in the non-pulling state, the pulley is located at the front of the slide, and the head bed board and the back bed board are in the same horizontal plane; when the pulling mechanism is in the pulling state, the crank rotates and drives the pulley to slide to the rear of the slide, and pushes the head bed board to flip, so that the angle between the head bed board and the back bed board is an obtuse angle.

[0010] The front center of the bottom surface of the backrest bed board is hinged to the front end of the telescopic device, and the rear end of the telescopic device is hinged to the middle of the crossbeam fixed under the bed frame.

[0011] The telescopic device is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0012] The pulling mechanism includes a first pull rod, the front end of which is hinged to the rear end of a crank, the rear end of which is hinged to the middle and rear part of a second pull rod, the front end of which is hinged to the side beam of the bed frame, and the rear end of which is hinged to the lower part of the side edge of the backrest bed board.

[0013] Among them, the hinge point between the second pull rod and the side edge of the backrest bed board is the first hinge point, and the hinge point between the first pull rod and the second pull rod is the second hinge point;

[0014] When the telescopic device is in the retracted state, both the headboard and the backboard are horizontal, and the second hinge point is located in front of the first hinge point. When the telescopic device is in the extended state, the second pull rod rotates about the first hinge point, thereby causing the second hinge point to rotate around the first hinge point. This, in turn, causes the first pull rod to move away from the headboard. The crank rotates accordingly and causes the pulley to slide towards the rear of the slide, pushing the headboard to flip, so that the angle between the headboard and the backboard is obtuse.

[0015] Alternatively, the pulling mechanism includes a steel wire rope, one end of which is connected to the rear end of a crank, a fixed pulley is fixed to the lower back of the backrest, and the other end of the steel wire rope passes around the fixed pulley and is fixed to a fixed rod located inside the bed frame.

[0016] When the telescopic device is in the retracted state, the headboard and backboard are both in a horizontal state, the wire rope between the fixed pulley and the fixed rod is in the shortest state, and the wire rope between the rear end of the crank and the fixed pulley is in the longest state.

[0017] When the telescopic device is in the extended state, the backrest board flips upward, which increases the distance between the steel wire rope between the fixed pulley and the fixed rod. Pulling the steel wire rope forces the distance between the steel wire rope between the rear end of the crank and the fixed pulley to shorten, thereby pulling the crank to rotate and causing the pulley to slide to the rear of the slide, and pushing the headrest board to flip, so that the angle between the headrest board and the backrest board is obtuse.

[0018] Compared with the prior art, the outstanding advantages of this utility model are:

[0019] This utility model's nursing bed headboard tilting mechanism is designed with two sets of mechanisms: one is a linkage combination mechanism, and the other is a combination mechanism of "steel wire rope and fixed pulley". Both mechanisms can tilt the headboard when the backrest is raised, maintaining support for the user's head and preventing neck fatigue caused by prolonged sitting or semi-reclining positions. Moreover, the two sets of mechanisms of this utility model can be used in nursing beds where the backrest and buttocks boards are hinged together, or in nursing beds where the backrest and buttocks boards are separate.

[0020] The headboard turning mechanism for the nursing bed described in this utility model will be further explained below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a side view showing the effect of the headboard turning mechanism of the nursing bed in Example 1.

[0022] Figures 2-3 This is a three-dimensional schematic diagram of the headboard turning mechanism for the nursing bed in Example 1.

[0023] Figure 4 This is a three-dimensional schematic diagram illustrating the effect of the headboard tilting mechanism of the nursing bed in Example 1 when used in a nursing bed.

[0024] Figure 5 This is a side view showing the effect of the headboard turning mechanism of the nursing bed in Example 2.

[0025] Figure 6 This is a three-dimensional schematic diagram of the headboard flipping mechanism for the nursing bed in Example 2.

[0026] Among them, 1-headboard, 2-slide rail, 3-crank, 4-backboard, 5-first pull rod, 6-second pull rod, 7-first hinge point, 8-second hinge point, 9-bed frame, 10-fixed plate, 11-telescopic device, 12-upper body outer sideboard, 13-steel wire rope, 14-fixed pulley, 15-buttocks board. Detailed Implementation

[0027] In this utility model, "front, front or front end" and "rear, rear or rear end" are all based on the user lying on the nursing bed. The direction closer to the user's head is the front, front or front end, and the direction farther away from the user's head is the rear, rear or rear end.

[0028] Example 1

[0029] like Figure 1-3As shown, a headboard flipping mechanism for a nursing bed includes a headboard 1. The back of the headboard 1 is provided with a slide rail 2 perpendicular to the width direction of the nursing bed. The rear end of the headboard 1 is hinged to the front end of the backboard 4. The front back of the backboard 4 is fixedly connected to one end of a fixing plate 10. The other end of the fixing plate 10 is hinged to the bent part of a crank 3. The front end of the crank 3 is equipped with a pulley, which can slide along the slide rail 2. The rear end of the crank 3 is connected to a pulling mechanism.

[0030] When the pulling mechanism is in the non-pulling state, the pulley is located at the front of the slide 2, and the head bed board 1 and the back bed board 4 are in the same horizontal plane; when the pulling mechanism is in the pulling state, the crank 3 rotates and drives the pulley to slide to the rear of the slide 2, and pushes the head bed board 1 to flip, so that the included angle between the head bed board 1 and the back bed board 4 is an obtuse angle.

[0031] The fixing plate 10 is L-shaped, with one side fixed to the front back of the backrest board 4, and the other end hinged to the curved part of the crank 3.

[0032] The front center of the bottom surface of the backrest bed board 4 is hinged to the front end of the telescopic device 11, and the rear end of the telescopic device 11 is hinged to the middle of the crossbeam fixed below the bed frame 9. The telescopic device 11 can be a cylinder, a hydraulic cylinder, or an electric push rod.

[0033] The pulling mechanism consists of multiple pull rods. Specifically, it includes a first pull rod 5, the front end of which is hinged to the rear end of the crank 3, the rear end of which is hinged to the middle and rear part of a second pull rod 6, the front end of which is hinged to the side beam of the bed frame 9, and the rear end of which is hinged to the lower part of the side edge of the backrest bed board 4.

[0034] The hinge point between the second pull rod 6 and the side edge of the backrest bed board 4 is the first hinge point 7, and the hinge point between the first pull rod 5 and the second pull rod 6 is the second hinge point 8.

[0035] When the telescopic device 11 is in the retracted state, both the headboard 1 and the backboard 4 are in a horizontal state, and the second hinge point 8 is located in front of the first hinge point 7. When the telescopic device 11 is in the extended state, the second pull rod 6 rotates about the first hinge point 7, thereby causing the second hinge point 8 to rotate around the first hinge point 7, which in turn causes the first pull rod 5 to move away from the headboard 1. The crank 3 rotates accordingly and causes the pulley to slide to the rear of the slide rail 2, and pushes the headboard 1 to flip, so that the angle between the headboard 1 and the backboard 4 is an obtuse angle.

[0036] The headboard tilting mechanism of this nursing bed is used in the following ways: Figure 4As shown. The backrest board 4 has upper body outer bed boards 12 connected to its left and right sides respectively. When the backrest board 4 is raised, the upper body outer bed boards 12 rise together with the backrest board 4. This nursing bed has a separate backrest board 4 and buttocks board 15. This is only shown as an example; in practical applications, this nursing bed can also be used with a headboard flipping mechanism for nursing beds where the backrest board and buttocks board are hinged together (such as the nursing bed shown in Example 2).

[0037] Example 2

[0038] like Figure 5-6 As shown, compared with Embodiment 1, the main difference is that the pulling mechanism consists of a wire rope and a fixed pulley. Specifically, it includes a wire rope 13, one end of which is connected to the rear end of the crank 3, and a fixed pulley 14 is fixed to the lower back of the backrest bed board 4. The other end of the wire rope 13 passes around the fixed pulley 14 and is fixed together with a fixing rod located inside the bed frame 9.

[0039] When the telescopic device 11 is in the retracted state, the headboard 1 and the backboard 4 are both in the horizontal state, the distance of the wire rope 13 between the fixed pulley 14 and the fixed rod is at its shortest state, and the distance of the wire rope 13 between the rear end of the crank 3 and the fixed pulley 14 is at its longest state.

[0040] When the telescopic device 11 is in the extended state, the backrest board 4 flips upward, which increases the distance of the steel wire rope 13 between the fixed pulley 14 and the fixed rod. Pulling the steel wire rope forces the distance of the steel wire rope 13 between the rear end of the crank 3 and the fixed pulley 14 to shorten, thereby pulling the crank 3 to rotate and causing the pulley to slide to the rear of the slide 2, and pushing the headrest board 1 to flip, so that the angle between the headrest board 1 and the backrest board 4 is an obtuse angle.

[0041] Similar to Embodiment 1, the telescopic device 11 can be a cylinder, a hydraulic cylinder, or an electric push rod.

[0042] The headboard tilting mechanism of this nursing bed is used in the following ways: Figure 5 As shown. This nursing bed is a nursing bed in which the backrest board and the buttocks board 15 are hinged together. This nursing bed is only shown here for demonstration purposes. In actual application, this nursing bed can also be used for nursing beds with separate backrest board and buttocks board using the headboard turning mechanism (such as the nursing bed shown in Example 1).

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. They should not be construed as limitations on the present utility model. Any modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A head deck roll-over mechanism for a care bed, characterised in that: The device includes a headboard (1), the back of which is provided with a slide (2) perpendicular to the width of the nursing bed. The rear end of the headboard (1) is hinged to the front end of the backboard (4). The front back of the backboard (4) is fixedly connected to one end of a fixing plate (10). The other end of the fixing plate (10) is hinged to the bent part of a crank (3). The front end of the crank (3) is equipped with a pulley, which can slide along the slide (2). The rear end of the crank (3) is connected to a pulling mechanism.

2. The head deck roll mechanism for a care bed according to claim 1, characterized by: When the pulling mechanism is in the non-pulling state, the pulley is located at the front of the slide (2), and the head bed board (1) and the back bed board (4) are in the same horizontal plane; when the pulling mechanism is in the pulling state, the crank (3) rotates and drives the pulley to slide to the rear of the slide (2), and pushes the head bed board (1) to flip, so that the included angle between the head bed board (1) and the back bed board (4) is an obtuse angle.

3. The head deck roll mechanism for a care bed according to claim 1, characterized by: The front center of the bottom surface of the backrest bed board (4) is hinged to the front end of the telescopic device (11), and the rear end of the telescopic device (11) is hinged to the middle of the crossbeam fixed below the bed frame (9).

4. The headboard turning mechanism for a nursing bed according to claim 3, characterized in that: The telescopic device (11) is a cylinder, a hydraulic cylinder, or an electric push rod.

5. The head deck roll mechanism for a care bed according to claim 3, characterized by: The pulling mechanism includes a first pull rod (5), the front end of the first pull rod (5) is hinged to the rear end of the crank (3), the rear end of the first pull rod (5) is hinged to the middle and rear part of the second pull rod (6), the front end of the second pull rod (6) is hinged to the side beam of the bed frame (9), and the rear end of the second pull rod (6) is hinged to the lower part of the side edge of the backrest bed board (4).

6. The head deck roll mechanism for a care bed according to claim 5, characterized by: The hinge point between the second pull rod (6) and the side edge of the backrest bed board (4) is the first hinge point (7), and the hinge point between the first pull rod (5) and the second pull rod (6) is the second hinge point (8). When the telescopic device (11) is in the retracted state, the headboard (1) and the backboard (4) are both in a horizontal state, and the second hinge point (8) is located in front of the first hinge point (7). When the telescopic device (11) is in the extended state, the second pull rod (6) rotates around the first hinge point (7) as an axis, thereby driving the second hinge point (8) to rotate around the first hinge point (7), and then driving the first pull rod (5) to move away from the headboard (1). The crank (3) rotates accordingly and drives the pulley to slide to the rear of the slide rail (2), and pushes the headboard (1) to flip, so that the angle between the headboard (1) and the backboard (4) is an obtuse angle.

7. The head deck roll mechanism for a care bed according to claim 3, characterized by: The pulling mechanism includes a steel wire rope (13), one end of which is connected to the rear end of the crank (3), a fixed pulley (14) is fixed on the lower back of the backrest bed board (4), and the other end of the steel wire rope (13) passes around the fixed pulley (14) and is fixed together with a fixed rod located inside the bed frame (9).

8. The head deck roll mechanism for a care bed according to claim 7, characterized by: When the telescopic device (11) is in the retracted state, the headboard (1) and the backboard (4) are both in a horizontal state, the length of the wire rope (13) between the fixed pulley (14) and the fixed rod is at its shortest, and the length of the wire rope (13) between the rear end of the crank (3) and the fixed pulley (14) is at its longest. When the telescopic device (11) is in the extended state, the back bed board (4) flips upward, thereby increasing the distance of the wire rope (13) between the fixed pulley (14) and the fixed rod. Pulling the wire rope forces the distance of the wire rope (13) between the rear end of the crank (3) and the fixed pulley (14) to shorten, thereby pulling the crank (3) to rotate and causing the pulley to slide to the rear of the slide (2), and pushing the head bed board (1) to flip, so that the angle between the head bed board (1) and the back bed board (4) is obtuse.

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