A care bed with restraint function
By incorporating a slotted and retractable mechanism into the bed board of the nursing bed, combined with mechanical contact sensors and servo motor control, the problem of inadequate restraint of existing nursing bed restraint straps has been solved, achieving more efficient patient restraint and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN THIRD PEOPLES HOSPITAL
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
The existing restraint straps on nursing beds have triangular gaps when securing patients, resulting in poor restraint and failing to effectively restrain patients, thus affecting safety.
The nursing bed has slots on its board. Through a combination of a winding mechanism and a restraint strap, the restraint strap is tightened from top to bottom and along the slot direction. Combined with mechanical contact sensors and servo motor control, the restraint strap is used to secure the patient from all sides, reducing gaps and adapting to patients of different heights.
It improves the reliability of patient restraint, reduces the gap between the patient and the restraint strap, enhances the safety of both patients and medical staff, and can accommodate the restraint needs of patients of different heights.
Smart Images

Figure CN224523460U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and in particular relates to a nursing bed with restraint function. Background Technology
[0002] When mental patients have an episode, they often cannot control their body movements and must be restrained by medical staff to ensure the safety of both the patient and the medical staff.
[0003] Patent CN218922936U discloses a patient restraint belt, which restrains the patient by setting the restraint belt on the hospital bed. However, when the restraint belt is fixed, the two ends are respectively connected to the two sides of the hospital bed, making the gap between the two ends of the restraint belt too large. When the restraint belt is tightened, the middle part is pressed against the patient's body, and the two ends extend obliquely to the sides of the hospital bed. Thus, a triangular gap is formed between the two ends and the patient. The existence of the gap makes it impossible for the restraint belt to effectively restrain the patient.
[0004] Therefore, it is necessary to improve the nursing beds in the existing technology. Utility Model Content
[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a nursing bed with restraint function, which improves the reliability of patient restraint.
[0006] To achieve the above objectives, the specific technical solution of the nursing bed with restraint function of this utility model is as follows: A nursing bed with restraint function includes a bed board mounted on a bed frame. The bed board has a slot that extends along the width of the bed board and penetrates through the thickness of the bed board. A winding mechanism is provided at the bottom of the bed board. The winding mechanism is connected to one end of two restraint straps. Both restraint straps pass through the slot and extend to the front of the bed board. The other ends of the two restraint straps are connected to each other by a buckle. The buckle is equipped with a mechanical contact sensor.
[0007] Preferably, multiple slots are provided, and each slot is arranged at equal intervals along the length of the bed board. A guide rail is fixedly connected to the bottom of the bed board along its length, and the winding mechanism is slidably disposed on the guide rail.
[0008] Preferably, the winding mechanism includes a sliding seat slidably connected to the guide rail, a winding shaft rotatably connected to the sliding seat, and a power component that is drively connected to the winding shaft fixedly connected to the sliding seat. One of the binding straps is wound around the outer periphery of the winding shaft, and the other binding strap is fixedly connected to the sliding seat.
[0009] Preferably, the sliding seat has a mounting surface that is axially arranged perpendicular to the winding shaft, the end of the winding shaft is connected to the mounting surface via a bearing, and a locking assembly is provided between the winding shaft and the mounting surface.
[0010] Preferably, the locking assembly includes a sliding sleeve that slides coaxially with the take-up shaft, wherein a plurality of first limiting strips are provided on one of the mounting surfaces, and a plurality of second limiting strips are provided on the end face of the sliding sleeve adjacent to the first limiting strips, and a limiting member for limiting relative rotation is provided between the sliding sleeve and the take-up shaft, and a thrust member that is throttlely connected to the sliding sleeve is also provided on the mounting surface.
[0011] Preferably, the limiting member includes a slider and a limiting groove extending axially along the take-up shaft, wherein one of the slider and the limiting groove is disposed on the sliding sleeve and the other is disposed on the take-up shaft.
[0012] Preferably, the thrust component includes a spring and an electromagnet, with the two ends of the spring connected to the sliding sleeve and the winding shaft respectively, the electromagnet fixed on the mounting surface, and the sliding sleeve made of ferromagnetic material.
[0013] Preferably, the direction of rotation of the winding shaft when winding the binding strap is a first direction, and the side of the second limiting strip located in front of the first direction is an inclined surface.
[0014] Preferably, a partition is provided on the take-up shaft, and the partition is located between the binding strap and the sliding sleeve.
[0015] Preferably, a pressure sensor is provided between the restraint strap fixedly connected to the sliding seat and the sliding seat.
[0016] The nursing bed with restraint function of this utility model has the following advantages: when the winding mechanism tightens the restraint straps, the two restraint straps can be tightened along the slot towards the patient, so that the restraint straps bind the patient to the bed board from above and both sides, reducing the gap between the patient and the restraint straps, improving the restraint effect of the restraint straps, and improving the safety of the patient and medical staff. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the nursing bed of this utility model; Figure 2 This is a schematic diagram of the connection structure between the bed board and the winding mechanism of this utility model; Figure 3 This is a schematic diagram of the connection structure between the winding mechanism and the binding strap of this utility model; Figure 4 This is a schematic diagram of the winding mechanism of this utility model; Figure 5 This is a schematic diagram of the structure of the sliding seat of this utility model; Figure 6 This is a schematic diagram of the structure of the sliding sleeve of this utility model; Explanation of markings in the diagram: 101, Bed frame; 102, Bed board; 103, Slot; 104, Guide rail; 201, Restraint strap; 202, Buckle; 203, Sliding seat; 204, Slider; 205, Pressure sensor; 206, Power component; 207, Rewinding shaft; 208, Electromagnet; 209, First limit bar; 210, Limiting groove; 211, Partition; 212, Sliding sleeve; 213, Second limit bar; 214, Spring; 215, Mounting surface. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0019] The terms "top surface," "bottom surface," and "full surface" are used with reference to the normal use of the nursing bed and are only for the purpose of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model.
[0020] like Figure 1 and 2 As shown, a nursing bed with restraint function includes a bed board 102 mounted on a bed frame 101. The bed board 102 has a slot 103 that extends along the width of the bed board 102 and penetrates through the thickness of the bed board 102. A winding mechanism is provided at the bottom of the bed board 102. The winding mechanism is connected to one end of two restraint straps 201. Both restraint straps 201 penetrate through the slot 103 and extend to the front of the bed board 102. The other ends of the two restraint straps 201 are connected to each other by a buckle 202. The buckle 202 is provided with a mechanical contact sensor.
[0021] When the above-mentioned nursing bed is in use, the patient lies flat on the bed board 102. When the patient has an attack and cannot control their behavior, the ends of the two restraint straps 201 are fixed by buckles 202. When the mechanical contact sensor detects that the buckles 202 are connected, it controls the winding mechanism to tighten the restraint straps 201, thereby fixing the patient to the bed board 102 through the restraint straps 201. Compared with existing hospital beds with restraint straps 201, the bed board 102 of this nursing bed has a slot 103. When the restraint straps 201 are tightened, the restraint straps 201 tighten from top to bottom, and can also tighten along the direction of the slot 103 towards both sides of the patient, finally binding the patient to the bed board 102 from all sides. In the bound state, the gap between the restraint straps 201 and the patient is greatly reduced, which can improve the restraint effect on the patient's behavior and improve the safety of the patient and medical staff.
[0022] Further improvements include, for example Figure 2 As shown, multiple slots 103 are provided, and each slot 103 is arranged at equal intervals along the length of the bed board 102. A guide rail 104 is fixedly connected to the bottom of the bed board 102 along its length, and the winding mechanism is slidably mounted on the guide rail 104. In this nursing bed, the winding mechanism moves along the guide rail 104, and its position can be adjusted so that the restraint strap 201 connected to the winding mechanism can pass through the slots 103 at different positions. This allows for adjustment of the position of the restraint strap 201, making it suitable for patients of different heights. Furthermore, multiple combinations of the winding mechanism and the restraint strap 201 can be provided and arranged at different positions on the bed board 102 along the distribution direction of the guide rail 104, thereby simultaneously restraining different parts of the patient's body, further enhancing the restraint effect on the patient's behavior, and improving the patient's safety.
[0023] Further improvements include, for example Figure 3 As shown, the winding mechanism includes a sliding seat 203 that is slidably connected to the guide rail 104. A winding shaft 207 is rotatably connected to the sliding seat 203. A power component 206 that is drively connected to the winding shaft 207 is also fixedly connected to the sliding seat 203. One binding strap 201 is wound around the outer periphery of the winding shaft 207, and the other binding strap 201 is fixedly connected to the sliding seat 203.
[0024] Specifically, the guide rail 104 is a T-shaped guide groove, and the sliding seat 203 has a guide groove that slides with the guide rail 104. The two are connected to each other, which improves the stability of the connection between the sliding seat 203 and the guide rail 104. The power component 206 is a servo motor, which can be controlled by a mechanical contact sensor on the buckle 202. When the buckle 202 is connected, the servo motor controls the winding shaft 207 to rotate, tightening the restraint strap 201. When the buckle 202 is opened, the servo motor controls the winding shaft 207 to rotate in the opposite direction, thereby loosening the restraint strap 201. The loosened restraint strap 201 can be easily reused later.
[0025] Further improvements include, for example Figure 3-6 As shown, the sliding seat 203 has a mounting surface 215 axially arranged perpendicular to the winding shaft 207. The end of the winding shaft 207 is connected to the mounting surface 215 via a bearing. A locking assembly is provided between the winding shaft 207 and the mounting surface 215. The locking assembly includes a sliding sleeve 212 that is coaxially slidably engaged with the winding shaft 207. A plurality of first limiting strips 209 are provided on one of the mounting surfaces 215, which are radially distributed along the winding shaft 207. A plurality of second limiting strips 213 are provided on the end face of the sliding sleeve 212 near the first limiting strips 209, which are radially distributed along the winding shaft 207. A limiting member for limiting relative rotation is provided between the sliding sleeve 212 and the winding shaft 207. A thrust member that is throttle-connected to the sliding sleeve 212 is also provided on the mounting surface 215. A pressure sensor 205 is provided between the restraining strap 201, which is fixedly connected to the sliding seat 203, and the sliding seat 203.
[0026] In the aforementioned nursing bed, the limiting component includes a slider 204 and a limiting groove 210 extending axially along the take-up shaft 207. One of the slider 204 and the limiting groove 210 is disposed on the sliding sleeve 212, and the other is disposed on the take-up shaft 207. Through the mutual limiting action between the slider 204 and the limiting groove 210, the relative rotation between the sliding sleeve 212 and the take-up shaft 207 can be restricted, allowing the take-up shaft 207 to drive the sliding sleeve 212 to rotate synchronously. Furthermore, it also supports the sliding sleeve 212 along... The winding shaft 207 slides axially; the thrust component includes a spring 214 and an electromagnet 208. The two ends of the spring 214 are connected to the sliding sleeve 212 and the winding shaft 207, respectively. The electromagnet 208 is fixed to the mounting surface 215. The sliding sleeve 212 is made of ferromagnetic material. Both the servo motor and the electromagnet 208 can be controlled by a pressure sensor 205. The pressure sensor 215 determines the tightness of the restraint strap 201 on the patient by detecting the tension value on the restraint strap 201. When the tension value... When the condition stabilizes and reaches the set value, the servo motor stops running. At this point, the electromagnet 208 can be energized, causing it to attract the sliding sleeve 212 towards the first limiting bar 209. This causes the first limiting bar 209 and the second limiting bar 213 to intersect, creating resistance through their mutual restraint to limit the rotation of the take-up shaft 207. This locks the restraint strap 201, maintaining its restraint on the patient. The electromagnet 208 can also be controlled by a mechanical contact sensor on the buckle 202. Once the patient's condition stabilizes, the buckle 202 can be opened, and the electromagnet 208 can be de-energized via the mechanical contact sensor. Under the tension of the spring 214, the sliding sleeve 212 slides in the opposite direction to reset, unlocking the take-up shaft 207. This allows the servo motor to control the rotation of the take-up shaft 207, loosening the restraint strap 201 for subsequent use.
[0027] Further improvements include, for example Figure 6 As shown, the rotation direction of the winding shaft 207 when winding the restraint strap 201 is the first direction, and the side of the second limiting bar 213 located in front of the first direction is an inclined surface. The inclined surface setting allows the winding shaft 207 to tighten the restraint strap 201 even when the locking component is in the locked state, but it cannot loosen the restraint strap 201. Thus, when the buckle 202 is connected, the locking component can be controlled to switch to the locked state. In this state, the winding shaft 207 can only rotate in one direction. Therefore, during the tightening process of the restraint strap 201, the unidirectional rotation of the winding shaft 207 can resist the huge pulling force on the restraint strap 201 when the patient struggles, reduce the impact of the pulling force on the servo motor, and prevent the restraint strap 201 from loosening, thereby improving the tightening effect of the restraint strap 201.
[0028] Further improvements include, for example Figure 5 As shown, a partition 211 is provided on the winding shaft 207, and the partition 211 is located between the binding strap 201 and the sliding sleeve 212. The partition 211 is used to separate the binding strap 201 and the sliding sleeve 212, preventing the binding strap 201 from winding onto the sliding sleeve 212, so as to ensure the normal sliding of the sliding sleeve 212 and improve the stability of the operation of each component.
[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A nursing bed with restraint function, comprising a bed board (102) mounted on a bed frame (101), characterized in that: The bed board (102) is provided with a slot (103), the slot (103) extends along the width direction of the bed board (102) and penetrates the thickness of the bed board (102), the bottom of the bed board (102) is provided with a winding mechanism, the winding mechanism is connected to one end of two restraint straps (201), both of the restraint straps (201) penetrate the slot (103) and extend to the front of the bed board (102), the other ends of the two restraint straps (201) are connected to each other by a buckle (202), the buckle (202) is provided with a mechanical contact sensor.
2. The nursing bed with restraint function according to claim 1, characterized in that, Multiple slots (103) are provided, and each slot (103) is arranged at equal intervals along the length direction of the bed board (102). A guide rail (104) is fixedly connected to the bottom of the bed board (102) along its length direction, and the winding mechanism is slidably disposed on the guide rail (104).
3. The nursing bed with restraint function according to claim 2, characterized in that, The winding mechanism includes a sliding seat (203) slidably connected to the guide rail (104), a winding shaft (207) rotatably connected to the sliding seat (203), and a power component (206) fixedly connected to the sliding seat (203) and drivenly connected to the winding shaft (207). One of the binding straps (201) is wound around the outer periphery of the winding shaft (207), and the other binding strap (201) is fixedly connected to the sliding seat (203).
4. The nursing bed with restraint function according to claim 3, characterized in that, The sliding seat (203) has a mounting surface (215) that is axially arranged perpendicular to the winding shaft (207). The end of the winding shaft (207) is connected to the mounting surface (215) via a bearing. A locking assembly is provided between the winding shaft (207) and the mounting surface (215).
5. The nursing bed with restraint function according to claim 4, characterized in that, The locking assembly includes a sliding sleeve (212) that is slidably coaxial with the take-up shaft (207). A plurality of first limiting strips (209) are provided on one of the mounting surfaces (215) and distributed radially along the take-up shaft (207). A plurality of second limiting strips (213) are provided on the end face of the sliding sleeve (212) near the first limiting strips (209) and distributed radially along the take-up shaft (207). A limiting member for limiting relative rotation is provided between the sliding sleeve (212) and the take-up shaft (207). A thrust member that is throttlely connected to the sliding sleeve (212) is also provided on the mounting surface (215).
6. The nursing bed with restraint function according to claim 5, characterized in that, The limiting member includes a slider (204) and a limiting groove (210) extending axially along the take-up shaft (207). One of the slider (204) and the limiting groove (210) is disposed on the sliding sleeve (212), and the other is disposed on the take-up shaft (207).
7. The nursing bed with restraint function according to claim 5, characterized in that, The thrust component includes a spring (214) and an electromagnet (208). The two ends of the spring (214) are connected to the sliding sleeve (212) and the winding shaft (207) respectively. The electromagnet (208) is fixed on the mounting surface (215). The sliding sleeve (212) is made of ferromagnetic material.
8. The nursing bed with restraint function according to claim 5, characterized in that, The direction of rotation of the winding shaft (207) when winding the binding strap (201) is the first direction, and the side of the second limiting strip (213) located in front of the first direction is an inclined surface.
9. The nursing bed with restraint function according to claim 5, characterized in that, A partition (211) is provided on the winding shaft (207), and the partition (211) is located between the binding strap (201) and the sliding sleeve (212).
10. The nursing bed with restraint function according to claim 3, characterized in that, A pressure sensor (205) is provided between the restraint strap (201) fixedly connected to the sliding seat (203) and the sliding seat (203).