Fall arrest bed

Abstract

The utility model discloses a kind of anti-falling sickbeds, it is related to sickbed technical field.The anti-falling sickbed includes sickbed body, the both sides of sickbed body are equipped with guardrail, its distinguishing feature is still including bed rail anti-falling winding device, the bed rail anti-falling winding device includes winding curtain casing, pivot, protective curtain, winding mechanism and bed body connecting seat;The barrel wall of winding curtain casing is opened with curtain outlet along axis;Pivot is rotatably arranged in winding curtain casing;The one end of protective curtain is wound on pivot, the other end is free end and can be stretched out or withdrawn from curtain outlet;Winding mechanism is arranged at the end of winding curtain casing and is connected with pivot, for pivot provides the reset force of making protective curtain winding;Bed body connecting seat is equipped with two, it is fixedly installed respectively at the outside of sickbed body and located at bed board height, two bed body connecting seats are connected respectively at both ends of winding curtain casing;The free end of protective curtain is equipped with bandage.The anti-falling sickbed can block patient from falling from sickbed due to unconsciousness.

Description

Technical Field

[0001] This utility model relates to the field of hospital bed technology, and in particular to a fall-prevention hospital bed. Background Technology

[0002] In the field of medical care, hospital beds are typically equipped with height-adjustable side rails, one of their core functions being to prevent patients from falling out of bed while asleep or unconscious, ensuring patient safety. Currently, most hospital beds on the market have a noticeable gap between the side rail near the headboard and the headboard when the rail is raised. This gap is mainly due to the installation structure of the rail's lifting mechanism and the allowable movement for ease of operation.

[0003] The defects in this structure pose a significant safety hazard in actual clinical applications. For patients who can turn over independently, especially those who are relatively thin, their unconscious movements during sleep can easily cause their torso or limbs to enter the aforementioned gap area. Since the width of this gap is often sufficient for part of a thin patient's body to pass through, the patient may slip through the gap during the turning process and fall off the side of the bed. Such accidental falls can not only cause direct physical injury to the patient, such as fractures and soft tissue contusions, but may also lead to secondary injuries. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fall-proof hospital bed that can prevent patients from falling off the bed unconsciously.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A fall-prevention hospital bed includes a bed body with guardrails on both sides. A distinguishing feature is the inclusion of a fall-prevention retraction device. This device comprises a roller shutter housing, a rotating shaft, a protective curtain, a retraction mechanism, and a bed frame connecting seat. The roller shutter housing has an outlet along its axis on its cylindrical wall. The rotating shaft is rotatably mounted within the roller shutter housing. One end of the protective curtain is wound around the rotating shaft, while the other end is free and can extend or retract from the outlet. The retraction mechanism is configured... The roller shutter housing is connected to the rotating shaft at its end to provide a restoring force for the rotating shaft to retract the protective curtain; two bed body connecting seats are provided, which are fixedly installed on the outside of the bed body and located at the height of the bed board, and the two bed body connecting seats are respectively connected to the two ends of the roller shutter housing; the free end of the protective curtain is provided with a strap, which is used to fix the free end to the upper horizontal bar of the bed rail or the top corner of the headboard or footboard after the protective curtain is pulled upward and unfolded, so that it forms a vertical protective barrier on the side of the bed.

[0007] In some embodiments, the rewinding mechanism includes a housing, a rotor, and a spring; the housing includes a cylinder closed at one end and a circular cover plate covering its open end, the housing being detachably connected to the end of the roller shutter housing; the rotor is rotatably housed within the housing, and one end extends out of the housing and is detachably connected to a rotating shaft; the spring is sleeved on the rotor, its inner end being fixedly connected to the rotor, and its outer end being fixedly connected to the inner wall of the cylinder.

[0008] In at least one embodiment, the outer end of the rewinding mechanism is provided with a rotary locking mechanism; the rotary locking mechanism includes a cam handle and two connecting ears fixed to the outer wall of the closed end of the cylinder; the cam handle is hinged between the two connecting ears; two limiting plates are fixed on the rotor, and the two limiting plates are respectively located on both sides of the spring spring; the closed end of the cylinder is provided with a rotating hole, and one end of the rotor corresponding to the cam handle passes through the rotating hole and abuts against the eccentric wheel of the cam handle; rotating the cam handle can drive the eccentric wheel to press down the end of the rotor, so that the limiting plate near the round cover plate is tightly attached to the round cover plate, and the generated friction prevents the rotor and the shaft from rotating.

[0009] In some embodiments, the bed frame connecting seat includes a semi-circular base and a semi-circular latch; the base is set on the hospital bed, and its bottom ends are provided with waist-shaped holes, and bolts are provided in the waist-shaped holes. Tightening the bolts can secure the base to the side of the hospital bed body; the latch is connected to the base by bolts to form a circular cavity that constrains the end of the roller shutter housing.

[0010] In some embodiments, the rotating shaft has a T-shaped groove along its axial direction; the edge of the protective curtain that is wound around the rotating shaft has a T-shaped strip, and the T-shaped strip is embedded in the T-shaped groove.

[0011] In at least one embodiment, a square block is fixed at one end of the rotating shaft facing the rewinding mechanism; a square blind hole is provided at the end of the rotor connected to the rotating shaft, and the square block is inserted into the square blind hole.

[0012] Compared to existing technologies, this invention achieves at least the following beneficial effects: By incorporating an expandable protective curtain on the side of the bed, which directly covers and closes the side railing, the curtain, when pulled upwards and secured, forms a continuous, vertical, flexible barrier extending from the bed board to the upper edge of the railing. This effectively prevents patients, especially those with slender builds, from slipping through the gap when unconsciously turning over, effectively solving the inherent safety hazards of existing bed structures and greatly reducing the risk of patient falls. Furthermore, when using this device, medical staff or caregivers only need to perform two simple actions—pulling and securing—to quickly establish safety protection. The operation is simple and does not interfere with normal nursing care. Attached Figure Description

[0013] One or more embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0014] Figure 1 This is a structural schematic diagram of the fall-prevention hospital bed of this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the bed rail anti-fall retraction device;

[0016] Figure 3 for Figure 2 Exploded view;

[0017] Figure 4 This is a schematic diagram of the rotor structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the installation of the protective curtain and roller shutter housing of this utility model;

[0019] Figure 6 for Figure 3 A magnified view of region A in the middle.

[0020] The diagram is labeled as follows: 1. Bed body; 2. Bed rail anti-fall retraction device; 21. Roller blind shell; 211. Curtain exit; 22. Rotating shaft; 221. T-slot; 222. Square block; 23. Protective curtain; 231. Free end; 232. Strap; 233. T-strip; 24. Rewinding mechanism; 241. Outer shell; 2411. Cylinder; 2412. Round cover plate; 242. Rotor; 2421. Limiting plate; 2422. Square blind hole; 243. Spring; 25. Bed frame connecting seat; 251. Base; 2511. Waist-shaped hole; 252. Lock; 26. Rotary locking mechanism; 261. Cam handle; 262. Connecting ear; 27. Side cover; 271. Central blind hole. Detailed Implementation

[0021] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present invention more complete and to fully convey the concept of the present invention to those skilled in the art.

[0022] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0023] like Figures 1 to 6 As shown, the fall-prevention bed of this utility model includes a bed body 1, guardrails installed on both sides of the bed body 1, and a fall-prevention retraction device for the guardrails 2.

[0024] The bed rail anti-fall retraction device 2 is mainly used on the side of the hospital bed. The bed rail anti-fall retraction device 2 includes a roller shutter housing 21, a rotating shaft 22, a protective curtain 23, a rewinding mechanism 24, and a bed frame connecting seat 25.

[0025] refer to Figure 2 and Figure 3 Specifically, the roller shutter housing 21 is a long cylindrical structure, serving as the housing space for the entire device. A slender curtain outlet 211 is formed along the axial direction of its cylindrical wall. This outlet 211 serves to constrain and guide the extension and retraction path of the protective curtain 23. A rotating shaft 22 is rotatably disposed inside the roller shutter housing 21. It is the active component for winding and releasing the protective curtain 23. In this embodiment, one end of the roller shutter housing 21 is provided with a side cover 27, the center of which has a central blind hole 271. The end of the rotating shaft 22 is rotatably placed within this central blind hole 271. The protective curtain 23 is made of flexible fabric (such as Oxford cloth, PVC coated cloth, etc.), with one end fixed and wound around the rotating shaft 22, and the other end being a free end 231. At least one binding strap 232 is fixed to the free end 231; in this embodiment, four straps are used and evenly spaced to provide a more secure binding.

[0026] To achieve automatic retraction of the protective curtain 23, a rewinding mechanism 24 is provided at the end of the roller shutter housing 21 away from the side cover. This rewinding mechanism 24 includes a housing 241, a rotor 242, and a spring 243. The housing 241 includes a cylinder 2411 closed at one end and a circular cover plate 2412 covering the open end of the cylinder 2411. The housing 241 is detachably connected to the end of the roller shutter housing 21. Specifically, in this embodiment, the circular cover plate 2412 is threadedly connected to the end of the roller shutter housing 21 with screws. The rotor 242 is rotatably housed within the housing 241, and one end extends out of the housing 241 and is detachably connected to the rotating shaft 22. The spring 243 is sleeved on the rotor 242, with its inner end fixedly connected to the rotor 242 and its outer end fixedly connected to the inner wall of the cylinder 2411. It provides the rotating shaft 22 with a constant restoring force to rewind the protective curtain 23.

[0027] To prevent the protective curtain 23 from being accidentally pulled out due to pressure or impact from the patient while it is in the unfolded state, a rotary locking mechanism 26 is provided at the outer end of the rewind mechanism 24. This rotary locking mechanism 26 includes a cam handle 261 and two connecting ears 262 fixed to the ends of the housing 241. The cam handle 261 is hinged between the two connecting ears 262 via the eccentric shaft of the cam. Two limiting plates 2421 are fixed on the rotor 242, located on either side of the spring 243. A rotating hole is provided in the middle region of the closed end of the cylinder 2411 of the housing 241, and the end of the rotor 242 passes through the rotating hole and contacts the eccentric wheel of the cam handle 261. When the protective curtain 23 is pulled to the required length, the cam handle 261 can be rotated, and its eccentric wheel will press down on the end of the rotor 242, thereby forcing the limiting piece 2421 on the side near the round cover plate 2412 to press tightly against the inner wall of the round cover plate 2412. Through the huge friction force generated, the rotor 242 and the shaft 22 are effectively locked, preventing them from continuing to rotate, thus ensuring the stability and safety of the protective barrier.

[0028] Two bed frame connecting seats 25 are provided, which are fixedly installed on the outside of the bed frame of the bed body 1, and the installation height is flush with the bed board to ensure that the protective curtain 23 can be raised from the lowest position to achieve seamless protection. The two bed frame connecting seats 25 support and fix the two ends of the roller blind housing 21 respectively, and securely install the entire device on the bed. Each bed frame connecting seat 25 includes a semi-circular base 251 and a matching semi-circular latch 252. The rear ends of the base 251 are provided with waist-shaped holes 2511, and bolts are provided in the waist-shaped holes 2511 to fix the base 251 to the bed frame. During installation, the end of the roller blind housing 21 is placed on the base 251, then the latch 252 is used to close it, and the bolts are tightened to form a complete circular cavity, which firmly restrains the end of the roller blind housing 21, realizing a stable and convenient "clamp-type" installation.

[0029] To facilitate easy replacement of the protective curtain 23 (e.g., in case of dirt or damage), the protective curtain 23 and the rotating shaft 22 are detachably connected. Specifically, in this embodiment, a T-slot 221 is provided axially on the rotating shaft 22. Correspondingly, a T-shaped strip 233, which mates with the T-slot 221, is sewn or welded to the edge of the protective curtain 23 where it needs to be fixed to the rotating shaft 22. During assembly, simply slide the T-shaped strip 233 into the T-slot 221 from the end to complete the fixation; during disassembly, slide it in the opposite direction to remove it. This "T-slot-strip" matching structure ensures a secure connection and smooth winding while enabling quick and independent replacement of the protective curtain 23 without replacing the entire device, thus reducing subsequent maintenance costs.

[0030] Furthermore, to facilitate the separation and assembly of the rewinding mechanism 24 and the rotating shaft 22, thereby enabling independent maintenance or replacement of each component, a square block 222 is fixedly installed at the end of the rotating shaft 22 facing the rewinding mechanism 24. A matching square blind hole 2422 is provided at the output end of the rotor 242. During installation, simply align the square block 222 and insert it into the square blind hole 2422 to achieve effective power transmission. This connection method has a simple structure and excellent disassembly capability.

[0031] The method of using this fall-prevention bed is as follows: When protection is needed, hold the free end 231 of the protective curtain 23 and pull it upwards. The protective curtain 23 extends from the curtain outlet 211, the rotating shaft 22 rotates, and the spring 243 of the rewind mechanism 24 stores energy. When the protective curtain 23 is raised to a sufficient height, use its straps 232 to fix the free end 231 to the upper crossbar of the guardrail or the top corner of the headboard, thus forming a complete vertical protective barrier on the side of the bed. If this state needs to be maintained for a long time, tighten the cam handle 261 of the rotating locking mechanism 26 to lock the rotating shaft 22. After use, untie the straps 232 and then release the cam handle 261. Under the restoring force of the rewind mechanism 24, the protective curtain 23 automatically and smoothly rewinds back into the curtain housing 21, restoring a clean state.

[0032] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this utility model should be within the protection scope of this utility model.

Claims

1. A fall-prevention hospital bed, comprising a bed body (1), wherein guardrails are provided on both sides of the bed body (1), characterized in that: It also includes a bed rail anti-fall retraction device (2), which includes a roller shutter housing (21), a rotating shaft (22), a protective curtain (23), a rewinding mechanism (24), and a bed frame connecting seat (25); the roller shutter housing (21) has an outlet (211) along its axis on its cylindrical wall; the rotating shaft (22) is rotatably disposed inside the roller shutter housing (21); one end of the protective curtain (23) is wound around the rotating shaft (22), and the other end is a free end (231) that can extend or retract from the outlet (211); the rewinding mechanism (24) is disposed at the end of the roller shutter housing (21). It is connected to the rotating shaft (22) to provide the rotating shaft (22) with the restoring force to roll up the protective curtain (23); there are two bed body connecting seats (25), which are fixedly installed on the outside of the bed body (1) and located at the height of the bed board. The two bed body connecting seats (25) are respectively connected to the two ends of the roller shutter shell (21); the free end (231) of the protective curtain (23) is provided with a strap (232) to fix the free end (231) to the upper horizontal bar of the bed rail or the top corner of the headboard or footboard after the protective curtain (23) is pulled up and unfolded, so that it forms a vertical protective barrier on the side of the bed.

2. The fall-prevention hospital bed according to claim 1, characterized in that: The rewinding mechanism (24) includes a housing (241), a rotor (242), and a spring (243); the housing (241) includes a cylinder (2411) closed at one end and a circular cover plate (2412) covering its open end, and the housing (241) is detachably connected to the end of the roller shutter housing (21); the rotor (242) is rotatably housed in the housing (241), and one end extends out of the housing (241) and is detachably connected to the rotating shaft (22); the spring (243) is sleeved on the rotor (242), its inner end is fixedly connected to the rotor (242), and its outer end is fixedly connected to the inner wall of the cylinder (2411).

3. The fall-prevention hospital bed according to claim 2, characterized in that: The outer end of the rewinding mechanism (24) is provided with a rotary locking mechanism (26); the rotary locking mechanism (26) includes a cam handle (261) and two connecting ears (262) fixed to the outer wall of the closed end of the cylinder (2411); the cam handle (261) is hinged between the two connecting ears (262); two limiting plates (2421) are fixed on the rotor (242), and the two limiting plates (2421) are respectively located on both sides of the spring spring (243). The closed end of the cylinder (2411) is provided with a rotating hole. One end of the rotor (242) corresponding to the cam handle (261) passes through the rotating hole and abuts against the eccentric wheel of the cam handle (261). Rotating the cam handle (261) can drive the eccentric wheel to press down the end of the rotor (242), so that the limiting piece (2421) near the round cover plate (2412) is tightly attached to the round cover plate (2412), and the generated friction force prevents the rotor (242) and the rotating shaft (22) from rotating.

4. The fall-prevention hospital bed according to claim 1, characterized in that: The bed frame connecting seat (25) includes a semi-circular base (251) and a semi-circular latch (252); the base (251) is set on the hospital bed, and its bottom ends are provided with waist-shaped holes (2511), and bolts are provided in the waist-shaped holes (2511). Tightening the bolts can make the base (251) secure to the side of the hospital bed body (1); the latch (252) is connected to the base (251) by bolts to form a circular cavity that constrains the end of the roller shutter housing (21).

5. The fall-prevention hospital bed according to claim 1, characterized in that: The rotating shaft (22) has a T-shaped groove (221) along its axial direction; the protective curtain (23) is connected to the rotating shaft (22) by a T-shaped strip (233) along its edge, and the T-shaped strip (233) is embedded in the T-shaped groove (221).

6. The fall-prevention hospital bed according to claim 2, characterized in that: A square block (222) is fixed at one end of the rotating shaft (22) facing the rewinding mechanism (24); a square blind hole (2422) is opened at the end of the rotor (242) connected to the rotating shaft (22), and the square block (222) is inserted into the square blind hole (2422).

Images