Backrest adjusting device of medical bed

Abstract

The utility model discloses a backrest adjusting device of a medical bed, and particularly relates to the technical field of medical instruments, the backrest adjusting device comprises a backrest plate and a trunk plate which are arranged in a bed frame, the trunk plate is rotatably connected to the front side of the backrest plate, and an adjusting piece used for adjusting the angle of the backrest plate is arranged outside the rear end of the trunk plate; the adjusting part comprises an air supply box arranged at the bottom of the backrest plate, a hollow column is arranged on the front side of the bottom end of the air supply box, and the rear end of the hollow column fixedly communicates with a hose used for communicating with the air supply box. The adjusting plate and the sealing plug are driven by the threaded rod to convey air in the air supply box into the hollow column through the hose, air pressure in the hollow column changes to push the piston rod to move outwards, then the piston rod pushes the backrest plate rotationally connected with the trunk plate to rotate, and the effect that a patient autonomously adjusts the angle of the backrest plate is achieved; the situation that the backrest plate cannot be adjusted due to the fact that the accompanying person is absent is avoided, and the use convenience of the patient is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically to a backrest adjustment device for a medical bed. Background Technology

[0002] Medical beds are the primary rest and treatment facilities for patients in inpatient wards. Medical staff can flexibly adjust the functions and parameters of medical beds according to the patient's condition and physical state, providing personalized treatment services. In particular, the adjustable headboard height allows medical staff to make individualized adjustments based on the patient's treatment needs and physical condition.

[0003] As shown in the prior art published in CN219000944U, although this prior art adjusts the support angle of the backrest cushion through an adjustable structure, the backrest cushion supports the patient, making it easier for the patient to lift their back and providing better support, thus improving the comfort of the medical bed. However, this prior art only allows the caregiver to adjust the backrest. Since patients need to rest and minimize movement out of bed, this technical solution does not allow the patient to adjust the backrest on the medical bed, resulting in the patient not being able to adjust it independently, which affects the ease of operation and the patient's user experience. Utility Model Content

[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a backrest adjustment device for a medical bed. A threaded rod drives an adjustment plate and a sealing plug to deliver gas from the air supply box through a hose to the interior of a hollow column. The change in air pressure inside the hollow column pushes a piston rod outward, which in turn pushes the backrest plate, which is rotatably connected to the torso plate, to rotate. This allows the patient to independently adjust the backrest angle, avoiding situations where a caregiver is not present and cannot adjust the backrest, thus improving the patient's ease of use and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a backrest adjustment device for a medical bed, comprising a backrest panel and a torso panel disposed within the bed frame, wherein the torso panel is rotatably connected to the front side of the backrest panel, and an adjustment component for adjusting the angle of the backrest panel is provided on the outer rear end of the torso panel.

[0006] The adjusting component includes an air supply box located at the bottom of the backrest panel. A hollow column is provided at the front of the bottom end of the air supply box, and a flexible hose for connecting the air supply box is fixedly connected to the rear end of the hollow column. A piston is provided inside the hollow column, and a piston rod is installed at the front of the piston. The top end of the piston rod passes through the hollow column and extends to the outside of the top end of the hollow column, and the top end of the piston rod is rotatably connected to the bottom of the backrest panel.

[0007] In a preferred embodiment, a threaded rod is installed inside the end of the air supply box away from the hollow column, which is movably connected by a bearing, and an adjusting plate is externally threaded to the end of the threaded rod near the hollow column. A sealing plug is installed on the side of the adjusting plate away from the threaded rod.

[0008] The cross-sections of the regulating plate and the air supply box are both rectangular, and the outer side of the regulating plate is in contact with the inner wall of the air supply box.

[0009] The top of the air supply box is provided with a handle on one side corresponding to the threaded rod, and the handle passes through the air supply box and is fixed together with the threaded rod.

[0010] In a preferred embodiment, a pressure sensor and an alarm are installed on the side of the air supply box near the hollow column, and the detection end of the pressure sensor extends into the air supply box.

[0011] A valve core is installed on the outside of the air supply box near the pressure sensor.

[0012] In a preferred embodiment, the bottom of the torso board is provided with a plurality of spaced support plates, and the bottom of the rear end of the backrest board is provided with two mirror-distributed fixing plates. The top ends of the fixing plates and the top ends of the support plates are all fixed to the bottom of the bed frame.

[0013] In a preferred embodiment, vertical plates are rotatably connected to both sides of the bottom end of the hollow column, and the same assembly plate is installed at the top of the two vertical plates, with both ends of the assembly plate fixed to the side of the two fixed plates that are close to each other.

[0014] In a preferred embodiment, a positioning plate is installed at the bottom of one of the fixing plates, and the positioning plate corresponds vertically to the position of the air supply box, with the bottom end of the positioning plate fixed to the top of the air supply box.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. The threaded rod drives the adjusting plate, which is limited by the air supply box, to move down. The adjusting plate then pushes the sealing plug to deliver the gas in the air supply box to the hollow column through the hose. The change in air pressure inside the hollow column pushes the piston rod to move outward. The piston rod then pushes the backrest plate, which is rotatably connected to the torso plate, to rotate. This allows the patient to adjust the backrest plate angle independently without getting out of bed, avoiding the situation where the backrest plate cannot be adjusted when the caregiver is not present, thus improving the convenience of use for the patient.

[0017] 2. The pressure in the gas supply box is monitored by a pressure sensor. When the pressure value is lower than the set value, the alarm will sound and the patient will call the maintenance personnel for inspection and maintenance. Gas will be replenished to the gas supply box through the valve core, thereby ensuring the stability of the use of this utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the bed frame of this utility model;

[0020] Figure 3 This is a rear view of the air supply box of this utility model;

[0021] Figure 4 This is a cross-sectional view of the air supply box of this utility model;

[0022] Figure 5 This is a side sectional view of the hollow column of this utility model.

[0023] The attached diagram is labeled as follows: 1. Bed frame; 2. Backrest panel; 3. Torso panel; 4. Air supply box; 5. Hollow column; 6. Hose; 7. Piston; 8. Piston rod; 9. Threaded rod; 10. Adjusting plate; 11. Sealing plug; 12. Handle; 13. Pressure sensor; 14. Alarm; 15. Valve core; 16. Support plate; 17. Fixing plate; 18. Vertical plate; 19. Assembly plate; 20. Positioning plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Refer to the instruction manual appendix Figure 1-5 This utility model provides a backrest adjustment device for a medical bed, including a backrest plate 2 and a torso plate 3 disposed in the bed frame 1. The torso plate 3 is rotatably connected to the front side of the backrest plate 2, and an adjustment component for adjusting the angle of the backrest plate 2 is provided on the outer rear end of the torso plate 3.

[0026] The adjusting component includes an air supply box 4 located at the bottom of the backrest panel 2. A hollow column 5 is provided on the front side of the bottom end of the air supply box 4, and a flexible hose 6 for connecting the air supply box 4 is fixedly connected to the rear end of the hollow column 5. A piston 7 is provided inside the hollow column 5, and a piston rod 8 is installed on the front side of the piston 7. The top end of the piston rod 8 passes through the hollow column 5 and extends to the outside of the top end of the hollow column 5. The top end of the piston rod 8 is rotatably connected to the bottom of the backrest panel 2. A threaded rod 9 is installed inside the end of the air supply box 4 away from the hollow column 5 and is movably connected to it by a bearing. An adjusting plate 10 is threadedly connected to the outside of the end of the threaded rod 9 near the hollow column 5. A sealing plug 11 is installed on the side of the adjusting plate 10 away from the threaded rod 9. The cross-section of the adjusting plate 10 and the cross-section of the air supply box 4 are both rectangular, and the outside of the adjusting plate 10 is in contact with the inner wall of the air supply box 4. A handle 12 is provided on the top side of the air supply box 4 corresponding to the threaded rod 9, and the handle 12 passes through the air supply box 4 and is fixed together with the threaded rod 9.

[0027] In use, the patient operates the handle 12 to rotate the threaded rod 9, which in turn drives the adjusting plate 10, which is limited by the air supply box 4, to move downward. The adjusting plate 10 then pushes the sealing plug 11 to deliver the gas in the air supply box 4 through the hose 6 to the hollow column 5. The increased air pressure in the hollow column 5 pushes the piston rod 8 to move outward, and the piston rod 8 then pushes the backrest 2, which is rotatably connected to the torso plate 3, to rotate. This allows the patient to easily adjust the angle of the backrest 2 according to their needs, and the patient can adjust the backrest 2 themselves, thus effectively improving the convenience of use for the patient and avoiding situations where the caregiver is not in the ward and cannot adjust the backrest 2.

[0028] Meanwhile, to ensure the stability of the piston rod 8's movement, it is necessary to monitor the air pressure in the air supply box 4, such as... Figure 3-5 As shown, a pressure sensor 13 and an alarm 14 are installed on the side of the gas supply box 4 near the hollow column 5, and the detection end of the pressure sensor 13 extends into the interior of the gas supply box 4; a valve core 15 is installed on the outside of the end of the gas supply box 4 near the pressure sensor 13. The pressure sensor 13 monitors the gas pressure in the gas supply box 4. When the pressure value is lower than the set value, the alarm 14 issues a warning, and the patient calls for maintenance personnel to carry out inspection and maintenance. Gas is then replenished to the gas supply box 4 through the valve core 15, thereby ensuring the stability of the use of this utility model.

[0029] To ensure the stability of the torso board 3, backrest board 2, and air supply box 4, it is necessary to provide support and limiting for the torso board 3 and backrest board 2, such as... Figure 1-5As shown, the torso board 3 has multiple spaced support plates 16 at its bottom, and the backrest board 2 has two mirror-distributed fixing plates 17 at its rear bottom. The top ends of the fixing plates 17 and the top ends of the support plates 16 are fixed to the bottom of the bed frame 1. A positioning plate 20 is installed at the bottom of one of the fixing plates 17, and the positioning plate 20 corresponds vertically to the air supply box 4. The bottom end of the positioning plate 20 is fixed to the top of the air supply box 4. The bottom of the torso board 3 is supported by multiple support plates 16 to prevent the support plates 16 from tilting or collapsing. The backrest board 2 is limited and supported by the fixing plates 17, thereby ensuring the stability of the backrest board 2. At the same time, the air supply box 4 is fixed by the positioning plate 20, which enhances the stability of the air supply box 4.

[0030] When rotating to adjust the angle of the backrest panel 2, the hollow column 5 also needs to be rotated and adjusted accordingly. Figure 3 As shown, vertical plates 18 are rotatably connected to both sides of the bottom end of the hollow column 5. The same mounting plate 19 is installed at the top of the two vertical plates 18, and the two ends of the mounting plate 19 are respectively fixed to the side of the two fixed plates 17 that are close to each other. The mounting plate 19 supports and fixes the vertical plate 18, and the vertical plate 18 limits and supports the hollow column 5. Since the hollow column 5 is rotatably connected to the vertical plate 18, the hollow column 5 will also rotate when the backrest 2 is pushed, thereby ensuring the stability of the backrest 2 angle adjustment.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backrest adjustment device for a medical bed, characterized by: The utility model provides a bed frame (1) including backrest plate (2) and trunk plate (3) in bed frame (1), trunk plate (3) is rotatably connected in backrest plate (2) front side, and the back end outside of trunk plate (3) is equipped with the adjusting spare for adjusting the angle of backrest plate (2); The adjusting spare includes a gas supply tank (4) provided at the bottom of the backrest plate (2), a hollow column (5) provided at the front side of the bottom end of the gas supply tank (4), a hose (6) fixedly connected to the rear end of the hollow column (5) for communicating with the gas supply tank (4), a piston (7) provided inside the hollow column (5), and a piston rod (8) mounted at the front side of the piston (7), wherein the top end of the piston rod (8) penetrates through the hollow column (5) and extends to the outside of the top end of the hollow column (5), and the top end of the piston rod (8) is rotatably connected to the bottom of the backrest plate (2).

2. A backrest adjustment device for a medical bed according to claim 1, characterized in that: A threaded rod (9) is movably connected by a bearing and mounted inside the end of the gas supply tank (4) away from the hollow column (5), and an adjusting plate (10) is threadedly connected to the outside of the end of the threaded rod (9) close to the hollow column (5), wherein a sealing plug (11) is mounted on the side of the adjusting plate (10) away from the threaded rod (9). The cross section of the adjusting plate (10) and the cross section of the gas supply tank (4) are both rectangular, and the outside of the adjusting plate (10) is in contact with the inner wall of the gas supply tank (4). A handle (12) is provided on the side of the top end of the gas supply tank (4) corresponding to the threaded rod (9), and the handle (12) penetrates through the gas supply tank (4) and is fixed with the threaded rod (9).

3. The backrest adjustment device of claim 1, wherein: A pressure sensor (13) and an alarm (14) are mounted on the side of the gas supply tank (4) close to the hollow column (5), and the detection end of the pressure sensor (13) extends into the gas supply tank (4). A valve core (15) is mounted on the outside of the end of the gas supply tank (4) close to the pressure sensor (13).

4. The backrest adjustment device of claim 1, wherein: A plurality of support plates (16) are provided at the bottom of the trunk plate (3), and two mirror image distributed fixed plates (17) are provided at the bottom of the backrest plate (2), wherein the top ends of the two ends of the fixed plates (17) and the top ends of the two ends of the support plates (16) are fixed with the bottom of the bed frame (1).

5. A backrest adjustment device for a medical bed according to claim 4, wherein: Vertical plates (18) are rotatably connected to the bottom ends of both sides of the hollow column (5), and the same assembly plate (19) is mounted on the top ends of the two vertical plates (18), wherein the two ends of the assembly plate (19) are fixed with the side of the two fixed plates (17) close to each other.

6. A backrest adjustment device for a medical bed according to claim 4, wherein: A positioning plate (20) is mounted at the bottom of one of the fixed plates (17), and the positioning plate (20) corresponds to the position of the gas supply tank (4) in up and down directions, wherein the bottom end of the positioning plate (20) is fixed with the top of the gas supply tank (4).

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