Hospital bed with guardrail and hospital bed control method

Abstract

In a hospital bed with guardrails and a hospital bed control method, two guardrails are respectively arranged on both sides of the main body of the hospital bed; when the guardrails are raised, the raised guardrails partially or completely protect the edge of the main body of the hospital bed; when the guardrails are lowered, the edge of the main body of the hospital bed is open; a guardrail control switch independently controls the raising and lowering of a guardrail; the position of the guardrail control switch and the position of the guardrail controlled by the guardrail control switch are respectively arranged on both sides of the longitudinal center section or longitudinal center line of the main body of the hospital bed, or the position of the guardrail control switch is arranged on the opposite side of the guardrail controlled by it. Non-same-side control guardrails avoid the situation that the patient will approach the edge of the bed when the same-side control is used, thereby avoiding the situation that the patient accidentally falls from the bed; it takes into account the patient's autonomous control intention and avoids the accidental fall when the same-side control is used.

Description

Technical Field

[0001] The invention belongs to the technical field of medical beds or household nursing beds, and particularly relates to a hospital bed or nursing bed with guardrails. Background Art

[0002] Since the space for placing beds in wards is limited, the width of beds is relatively narrow. In order to prevent patients from accidentally falling from the beds, liftable guardrails are usually set on both sides of the beds. The guardrails are raised when protection is needed and lowered when getting in and out of bed.

[0003] In the prior art, a control switch for controlling the raising and lowering of the guardrail is arranged on the guardrail, or arranged at the bottom of the bed or at the side of the bed on the same side as the guardrail.

[0004] For the control switch set at the bedside, when the patient operates the control switch on the same side, he usually needs to be close to the guardrail. When the patient moves from the center of the bed to the bedside, sometimes his body touches the guardrail or is very close to the guardrail. After operating the control switch and lowering the guardrail, he may lose his balance and fall from the edge of the bed if he is not careful. This is especially true for the elderly, patients or disabled people, whose bodies or minds are in an uncomfortable pathological state. If the control and movement of the body are too convenient or not flexible, it is more likely to cause a fall.

[0005] In the prior art, some guardrail switches of hospital beds are set under the bed to avoid direct operation by patients on the bed. Such design intention facilitates the caregivers to control the guardrail status, but does not take into account the patient's willingness to independently control the guardrail status. Patients, especially those who still have a certain degree of mobility, even if they are elderly, sick or disabled, usually prefer to control the guardrail status by themselves within their ability, rather than asking outsiders for help, especially in the middle of the night when the caregivers are resting, such requests will make the patient feel unnecessary emotions. However, for the control switch set at the bottom of the bed, that is, when the control switch is set below the main body of the bed, when the patient operates the control switch by himself, the upper part of the body needs to cross the guardrail, and the center of gravity of the body will accidentally cross the edge of the bed, which will make it easier to fall from the bed. Therefore, the above design intention increases the probability of falling accidents.

[0006] Therefore, there is an urgent need for a hospital bed or nursing bed that allows the patient to independently control the state of the guardrail and prevents the patient from falling. Summary of the invention

[0007] The technical problem to be solved by the present invention is to avoid the above-mentioned deficiencies of the prior art, and propose a hospital bed with guardrails, wherein the guardrail control switch and the guardrail are respectively arranged on both sides of the center line of the hospital bed or the guardrail control switch is arranged on the opposite side of the guardrail it controls. When it is necessary to control the raising and lowering of the guardrail on one side, it is necessary to operate the guardrail control switch arranged on the other side of the hospital bed.

[0008] The technical solution of the present invention to solve the above-mentioned problem is a hospital bed with a guardrail, comprising a hospital bed body, a guardrail and a guardrail control switch; the guardrail control switch is used to control the raising and lowering of the guardrail; when the guardrail is raised, the raised guardrail partially or completely protects one side edge of the hospital bed body; when the guardrail is lowered, one side edge of the hospital bed body is open; the position of the guardrail control switch and the position of the guardrail controlled by the guardrail control switch are respectively set on both sides of the longitudinal center section or the longitudinal center line of the hospital bed body; or the position of the guardrail control switch is set on the head side of the hospital bed body.

[0009] The position of the guardrail control switch sets the opposite side of the guardrail it controls.

[0010] There are two guardrails, which are respectively arranged on both sides of the main body of the bed; there are also two guardrail control switches; one guardrail control switch independently controls the lifting and lowering of one guardrail.

[0011] The hospital bed with guardrails also includes an alarm device; the alarm device is also controlled by the guardrail control switch; when the guardrail control switch is turned or touched, the alarm device will emit any one of the sound, light and electricity alarm information to prompt that the guardrail switch is being turned or touched.

[0012] The hospital bed with guardrails also includes a switch linkage component; the guardrail control switch is connected to the guardrail controlled by it through the switch linkage component, and controls the lifting and lowering of the guardrail.

[0013] The guardrail also includes a guardrail lock hook; the switch linkage assembly includes an unlocking block, an unlocking block connecting rod, a joint connecting rod, a transverse connecting rod and a switch connecting rod; one end of the unlocking block is used to movably contact the guardrail lock hook, and the other end of the unlocking block is connected to the unlocking block connecting rod; one end of the unlocking block connecting rod is connected to the joint connecting rod; one end of the joint connecting rod is connected to one end of the transverse connecting rod; the other end of the transverse connecting rod is connected to one end of the switch connecting rod, and the other end of the switch connecting rod is connected to the unlocking handle; when the guardrail is raised, the unlocking block is against the guardrail lock hook to fix the guardrail in a raised state; the guardrail control switch It includes an unlocking handle and a handle connecting rod; the unlocking handle is the contact part used by the controller to operate the guardrail control switch; the unlocking handle and the handle connecting rod are fixedly connected; the handle connecting rod is connected to the switch connecting rod; when the guardrail control switch is turned, that is, the unlocking handle is turned or lifted, the movement of the unlocking handle will drive the switch connecting rod, the transverse connecting rod, the joint connecting rod and the unlocking block connecting rod to move in sequence; the movement of the unlocking block connecting rod will drive the unlocking block to move, and the movement of the unlocking block causes the position of the unlocking block relative to the guardrail lock hook to change, so that the guardrail lock hook is no longer resisted by the unlocking block, and the guardrail will drop under the action of gravity.

[0014] The combined connecting rod comprises a combined connecting rod transverse portion and a combined connecting rod longitudinal portion; one end of the combined connecting rod transverse portion and one end of the combined connecting rod longitudinal portion are fixedly connected to form an L-shaped combined connecting rod; an unlocking connecting rod engaging groove is provided at one end of the combined connecting rod transverse portion, and the unlocking block connecting rod is engaged in the unlocking connecting rod engaging groove, so that the unlocking block connecting rod and the combined connecting rod are connected.

[0015] The switch linkage assembly also includes an unlocking pedal; one end of the unlocking pedal is connected to the lower end of the longitudinal portion of the combined connecting rod; the other end of the unlocking pedal is used to receive the force applied from the outside of the bed; when there is an external force on the unlocking pedal, the unlocking pedal drives the combined connecting rod and the unlocking block connecting rod to move; the movement of the unlocking block connecting rod will drive the unlocking block to move, and the movement of the unlocking block causes the position of the unlocking block relative to the guardrail lock hook to change, so that the guardrail lock hook is no longer supported by the unlocking block, and the guardrail will drop under the action of gravity, and the state of the guardrail standing upright on the edge of the bed will be unlocked; at the same time, by driving the combined connecting rod, the movement of the unlocking pedal will also drive the movement of the transverse connecting rod and the switch connecting rod in turn.

[0016] The switch linkage assembly also includes a first rotating shaft and a second rotating shaft; a transverse bracket is provided at the bottom of the bed body; a first bracket connection part and a second bracket connection part are provided at the lower part of the transverse bracket; a first bracket connection hole is provided on the first bracket connection part, and a second bracket connection hole is provided on the second bracket connection part; a first connecting hole of the combined connecting rod is provided on the combined connecting rod; a first connecting hole of the switch connecting rod is provided on the switch connecting rod; the first rotating shaft passes through the first connecting hole of the bracket and the first connecting hole of the combined connecting rod to flexibly connect the combined connecting rod and the bed body; the second rotating shaft passes through the second connecting hole of the bracket and the first connecting hole of the switch connecting rod to flexibly connect the switch connecting rod and the bed body; two ends of the transverse connecting rod are respectively provided with a combined connecting rod connection hole and a switch connecting rod connection hole; a combined connecting rod second connecting hole is provided on the combined connecting rod; a switch connecting rod second connecting hole is provided on the switch connecting rod; a fastener passes through the combined connecting rod connection hole and the combined connecting rod second connecting hole to flexibly connect the combined connecting rod and the transverse connecting rod; the fastener passes through the second connecting hole of the switch connecting rod and the switch connecting rod connection hole to flexibly connect the switch connecting rod and the transverse connecting rod.

[0017] The switch linkage assembly also includes a first return spring and a second return spring; a first spring hook is provided on the first connecting portion of the bracket, and a second spring hook is provided on the second connecting portion of the bracket; a first return spring hole is also provided on the joint connecting rod; one end of the first return spring is connected to the first return spring hole, and the other end of the first return spring is connected to the first spring hook; a second return spring hole is also provided on the switch connecting rod; one end of the second return spring is connected to the second return spring hole, and the other end of the second return spring is connected to the second spring hook.

[0018] The technical solution of the present invention to solve the above-mentioned problem can also be a bed control method for controlling the above-mentioned bed with guardrails; comprising the step of controlling the raising and lowering of the guardrail by operating the guardrail control switch; the bed with guardrails also includes an alarm device; the alarm device is also controlled by the guardrail control switch; the bed control method also includes an alarm step, when the guardrail control switch is turned or touched, the alarm device will issue any one of the sound and light alarm information to prompt that the guardrail switch is being turned; the guardrail control switch also includes a damping device for placing false triggers; the alarm device includes a nurse call system access port, and the nurse call system access port is used to access an external nurse call system; the alarm device also includes an alarm control unit; the alarm control unit is used to receive a first control instruction, a second control instruction and a third control instruction input from the outside; the first control instruction is used to control whether the alarm device is connected to the external nurse call system; the second control instruction is used to control whether the alarm device outputs sound and light alarm information; the third control instruction is used to turn off the alarm function of the alarm device; the alarm control unit is provided with a protection mechanism to prevent misoperation.

[0019] Compared with the prior art, the beneficial effects of the present invention are: 1. The position of the guardrail control switch and the position of the guardrail controlled by the guardrail control switch are respectively set on both sides of the longitudinal center line of the bed body; or the position of the guardrail control switch is set on the opposite side of the guardrail it controls; in the above design, when raising or lowering the guardrail on one side, the patient does not move to the edge of the bed on that side, but is at the center of the bed or moves to the edge of the bed on the opposite side to control the raising or lowering of the guardrail on that side, thereby avoiding the situation where the patient approaches the edge of the bed when controlling the same side, thereby avoiding the situation where the patient accidentally falls from the bed; 2. Such a design takes into account the patient's willingness to control autonomously and avoids accidental falls when controlling the same side; 3. When the patient controls autonomously, such a position The setting also reduces the necessity of moving the patient, and the guardrail can be raised and lowered in the middle of the bed; 4. Furthermore, the bed is also provided with a pedal for medical staff to operate the guardrail, and the pedal for operating the guardrail is for medical staff or accompanying personnel standing at the edge of the bed; with this design, the patient on the bed and the accompanying personnel outside the bed can each conveniently control the status of the guardrail; it can not only meet the patient's needs for independent control, but also facilitate simultaneous operation of medical staff; and the two operations share a set of devices, reducing costs; 5. Furthermore, an alarm device is provided, which can send out an alarm signal when the patient operates the guardrail independently or when someone outside operates the guardrail, so that the medical staff or accompanying personnel can discover it in time and give timely help to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an axonometric projection schematic diagram of one preferred embodiment of a hospital bed with guardrails;

[0021] Figure 2 A schematic side view orthographic projection diagram of one preferred embodiment of a hospital bed with guardrails;

[0022] Figure 3 yes Figure 2 AA cross-sectional view of ;

[0023] Figure 4 The hospital bed with guardrails only shows a schematic diagram of the axonometric projection of a portion of the hospital bed body 20 , and the CC section line in the figure is a stepped section line;

[0024] Figure 5 It is a schematic diagram of the axonometric projection of the guardrail;

[0025] Figure 6 is an axonometric projection schematic diagram of the unlocking block 61 and the unlocking block connecting rod 62;

[0026] Figure 7 is an axonometric projection schematic diagram of the joint connecting rod 63 and the unlocking pedal 70;

[0027] Figure 8 is an axonometric projection schematic diagram of the guardrail control switch 30 and the switch connecting rod 65;

[0028] Fig. 9 The bed with guardrail is in the combined state along Figure 4 One of the CC section axonometric projection diagrams of the CC section line in FIG. 1 ; the guardrail in the figure is in an upright protective state;

[0029] Fig.10 The bed with guardrail is in the combined state along Figure 4 The second schematic diagram of the CC section axonometric projection of the CC section line in FIG. 2; the guardrail in the figure is in a state of being about to be released but not yet unlocked;

[0030] Fig.11 The bed with guardrail is in the combined state along Figure 4 The third schematic diagram of the CC section axonometric projection of the CC section line in FIG. 1 ; the guardrail in the figure is in the state of being unlocked and being lowered;

[0031] Fig.12 The bed with guardrail is in the combined state along Figure 4 The fourth schematic diagram of the CC section axonometric projection of the CC section line in FIG. 4; the guardrail in the figure is in the lowered state;

[0032] Fig.13 The bed with guardrail is in the combined state along Figure 4 The fifth schematic diagram of the CC section axonometric projection of the CC section line in FIG. 5 ; the guardrail in the figure is in a state of being erected but still in the process of being lifted up;

[0033] Fig.14 The bed with guardrail is in the combined state along Figure 4 The fifth schematic diagram of the CC section axonometric projection of the CC section line in the figure; the guardrail in the figure is in the erected state. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0035] like Figures 1 to 4In the embodiment of the hospital bed with guardrails shown, it includes a hospital bed body 20, a guardrail 10 and a guardrail control switch 30; there are two guardrails 10, which are respectively arranged on both sides of the hospital bed body 20; when the guardrail 10 is raised, the raised guardrail 10 partially or completely protects the edge of the hospital bed body 20; when the guardrail 10 is lowered, the edge of the hospital bed body 20 is open; there are also two guardrail control switches 30; one guardrail control switch 30 independently controls the raising and lowering of one guardrail 10; the position of the guardrail control switch 30 and the position of the guardrail 10 controlled by the guardrail control switch 30 are respectively arranged on both sides of the longitudinal center section or longitudinal center line of the hospital bed body 20. The position of the guardrail control switch 30 is arranged on the opposite side of the guardrail 10 it controls. The above-mentioned hospital bed with guardrails also includes a switch linkage assembly; the guardrail control switch 30 is connected to the guardrail 10 it controls through the switch linkage assembly, and controls the raising and lowering of the guardrail 10.

[0036] In some embodiments not shown in the drawings, the guardrail control switch 30 is located on the head side of the bed body 20. Specifically, the position on the head side can be the center of the head side or a side away from the guardrail 10 controlled by it. As long as it is located in the center of the head side, it can effectively prevent falling.

[0037] Figure 1 The BB line in the figure is the longitudinal center line of the main body of the bed; Figure 3 The DD line in the figure is a schematic diagram of the orthographic projection of the longitudinal central section. The longitudinal central section of the bed body is a central section perpendicular to the bed surface. The guardrail control switch 30 and the guardrail 10 do not necessarily need to be set at different heights, as long as they are respectively set on both sides of the central section.

[0038] The position of the guardrail control switch 30 and the position of the guardrail 10 controlled by the guardrail control switch 30 are respectively set on both sides of the longitudinal center line of the bed body 20; or the position of the guardrail control switch 30 is set on the opposite side of the guardrail 10 it controls; in the above design, when raising or lowering the guardrail on one side, the patient does not move to the edge of the bed on that side, but controls the raising or lowering of the guardrail on that side at the center of the bed or moving to the edge of the bed on the opposite side, thereby avoiding the situation where the patient approaches the edge of the bed when controlling the same side, thereby avoiding the situation where the patient accidentally falls from the bed. Such a design takes into account the patient's willingness to control autonomously and avoids accidental falls when controlling the same side. When the patient controls autonomously, such a position setting also reduces the necessity for the patient to move, and the guardrail raising or lowering can be controlled in the middle of the bed.

[0039] like Figures 1 to 4In the illustrated embodiment of a hospital bed with guardrails, the bed body 20 includes a bed frame, which includes a plurality of transverse supports 21; there are two guardrails 10, one on each side; the guardrails 10 can be a railing type or a baffle type; there are also two guardrail control switches 30, which are symmetrically arranged; the left guardrail control switch 30 is used to independently control the right guardrail 10; the right guardrail control switch 30 is used to independently control the left guardrail 10.

[0040] The guardrail control switch 30 can be used by the patient lying on the bed to control the raising and lowering of the guardrail 10. The raising and lowering of the guardrail 10 can also be controlled by others standing at the bedside by unlocking the pedal 70. The pedal for controlling the guardrail is for medical staff or accompanying personnel standing at the edge of the bed; such a design allows the patient on the bed and the accompanying personnel outside the bed to conveniently control the state of the guardrail; it can not only meet the patient's needs for independent control, but also facilitate simultaneous operation by medical staff; and the two operations share a set of devices, reducing costs.

[0041] In some embodiments not shown in the drawings, an alarm device is also included; the alarm device is also controlled by the guardrail control switch 30; when the guardrail control switch 30 is turned or touched, the alarm device will send out any one of the sound, light and electricity alarm information to prompt that the guardrail switch 30 is being turned or touched. The alarm device is provided, and when the patient operates the guardrail independently or when someone outside operates the guardrail, an alarm signal can be sent out, so that medical staff or accompanying personnel can find out in time and provide timely help to the patient.

[0042] like Figures 5 to 8 In the embodiment of the hospital bed with guardrails shown, a switch linkage assembly is also included; the guardrail control switch 30 is connected to the guardrail 10 controlled by it through the switch linkage assembly, and controls the lifting and lowering of the guardrail 10. The guardrail 10 also includes a guardrail lock hook 15; the switch linkage assembly includes an unlocking block 61, an unlocking block connecting rod 62, a joint connecting rod 63, a transverse connecting rod 64 and a switch connecting rod 65; one end of the unlocking block 61 is used to movably contact the guardrail lock hook 15, and the other end of the unlocking block 61 is fixedly connected to the unlocking block connecting rod 62; one end of the unlocking block connecting rod 62 is connected to the joint connecting rod 63; one end of the joint connecting rod 63 is connected to one end of the transverse connecting rod 64; the other end of the transverse connecting rod 64 is connected to one end of the switch connecting rod 65, and the other end of the switch connecting rod 65 is connected to the unlocking dial handle 36; when the guardrail 10 is raised, the unlocking block 61 abuts against the guardrail lock hook 15 to fix the guardrail 10 in the raised state.

[0043] like Figures 5 to 8In the illustrated embodiment of a hospital bed with guardrails, the guardrail control switch 30 includes an unlocking handle 36 and a handle connecting rod 37; the unlocking handle 36 is a contact portion for a controller to manipulate the guardrail control switch 30; the unlocking handle 36 and the handle connecting rod 37 are fixedly connected; the handle connecting rod 37 is connected to the switch connecting rod 65; when the guardrail control switch 30 is toggled, i.e., the unlocking handle 36 is toggled or lifted, the movement of the unlocking handle 36 will sequentially drive the switch connecting rod 65, the transverse connecting rod 64, the joint connecting rod 63 and the unlocking block connecting rod 62 to move; the movement of the unlocking block connecting rod 62 will drive the unlocking block 61 to move, and the movement of the unlocking block 61 will change the position of the unlocking block 61 relative to the guardrail lock hook 15, so that the guardrail lock hook 15 is no longer supported by the unlocking block 61, and the guardrail 10 will drop under the action of gravity.

[0044] like Figures 5 to 8 In the shown embodiment of the hospital bed with guardrails, the combined connecting rod 63 includes a combined connecting rod transverse portion 631 and a combined connecting rod longitudinal portion 632; one end of the combined connecting rod transverse portion 631 and one end of the combined connecting rod longitudinal portion 632 are fixedly connected to form an L-shaped combined connecting rod 63; an unlocking connecting rod engaging groove 635 is provided at one end of the combined connecting rod transverse portion 631, and the unlocking block connecting rod 62 is engaged in the unlocking connecting rod engaging groove 635, so that the unlocking block connecting rod 62 and the combined connecting rod 63 are connected.

[0045] like Figures 5 to 8 In the illustrated embodiment of a hospital bed with guardrails, the switch linkage assembly further comprises an unlocking pedal 70; one end of the unlocking pedal 70 is fixedly connected to the lower end of the lower end of the longitudinal portion 632 of the combined connecting rod; the other end of the unlocking pedal 70 is used to receive the force applied from outside the bed body; when an external force acts on the unlocking pedal 70, the unlocking pedal 70 drives the combined connecting rod 63 and the unlocking block connecting rod 62 to move; the movement of the unlocking block connecting rod 62 drives the unlocking block 61 to move, and the movement of the unlocking block 61 causes the position of the unlocking block 61 relative to the guardrail lock hook 15 to change, so that the guardrail lock hook 15 is no longer resisted by the unlocking block 61, and the guardrail 10 drops under the action of gravity, and the state of the guardrail 10 standing upright on the edge of the bed is unlocked.

[0046] like Figures 5 to 8In the illustrated embodiment of the hospital bed with guardrails, the switch linkage assembly further comprises a first rotating shaft 66 and a second rotating shaft 68; a transverse bracket 21 is provided at the bottom of the hospital bed body 20; a first bracket connection portion 216 and a second bracket connection portion 217 are provided at the lower portion of the transverse bracket 21; a first bracket connection hole 2161 is provided on the first bracket connection portion 216, and a second bracket connection hole 2171 is provided on the second bracket connection portion 217; a first connecting hole 636 is provided on the joint connecting rod 63; a first connecting hole 656 is provided on the switch connecting rod 65; the first rotating shaft 66 passes through the first connecting hole 2161 of the bracket and the first connecting hole 636 of the joint connecting rod, so as to movably connect the joint connecting rod 63 and the hospital bed body 20; the second rotating shaft 68 passes through the second connecting hole 2171 of the bracket and the first connecting hole 656 of the switch connecting rod, so as to movably connect the switch connecting rod 65 and the hospital bed body 20.

[0047] like Figures 5 to 8 In the illustrated embodiment of a hospital bed with guardrails, a combined connecting rod connecting hole and a switch connecting rod connecting hole are respectively provided at both ends of the transverse connecting rod 64; a combined connecting rod second connecting hole 634 is provided on the combined connecting rod 63; a switch connecting rod second connecting hole 655 is provided on the switch connecting rod 65; a fastener passes through the combined connecting rod connecting hole and the combined connecting rod second connecting hole 634 to movably connect the combined connecting rod 63 and the transverse connecting rod 64; a fastener passes through the switch connecting rod second connecting hole 655 and the switch connecting rod connecting hole to movably connect the switch connecting rod 65 and the transverse connecting rod 64.

[0048] like Figures 5 to 8 In the illustrated embodiment of the hospital bed with guardrails, the switch linkage assembly further comprises a first return spring 67 and a second return spring 69; a first spring hook 218 is provided on the first connection portion 216 of the bracket, and a second spring hook 219 is provided on the second connection portion 217 of the bracket; a first return spring hole 637 is further provided on the joint connecting rod 63; one end of the first return spring 67 is connected to the first return spring hole 637, and the other end of the first return spring 67 is connected to the first spring hook 218; a second return spring hole 659 is further provided on the switch connecting rod 65; one end of the second return spring 69 is connected to the second return spring hole 659, and the other end of the second return spring 69 is connected to the second spring hook 219.

[0049] In some embodiments of the bed control method not shown in the accompanying drawings, it is used to control the above-mentioned bed with guardrails; it includes the step of controlling the raising and lowering of the guardrail 10 by operating the guardrail control switch 30; the bed with guardrails also includes an alarm device; the alarm device is also controlled by the guardrail control switch 30; the bed control method also includes an alarm step, when the guardrail control switch 30 is turned or touched, the alarm device will emit any one of the sound, light and electricity alarm information, used to prompt that the guardrail switch 30 is being turned.

[0050] In some embodiments of the bed control method not shown in the accompanying drawings, the guardrail control switch (30) further includes a damping device for placing false triggering; the damping device is used to prevent the guardrail control switch from false triggering. The alarm device includes a nurse call system access port, and the nurse call system access port is used to access an external nurse call system. The alarm device also includes an alarm control unit; the alarm control unit is used to receive a first control instruction and a second control instruction input from the outside; the first control instruction is used to control whether the alarm device establishes a connection with the external nurse call system; the second control instruction is used to control whether the alarm device outputs sound and light alarm information; the third control instruction is used to turn off the alarm function of the alarm device; the alarm control unit is provided with a protection mechanism to prevent misoperation; and the alarm mechanism is prevented from being modified by misoperation.

[0051] Figures 9 to 14 A schematic diagram of a hospital bed with guardrails is shown with the bed frame cut open and the right guardrail and its guardrail control switch 30 hidden, and the left guardrail and its control are explained.

[0052] Figures 9 to 12 The bed with guardrail is in the combined state along Figure 4 Schematic diagram of CC section axonometric projection of CC section line in; Figures 9 to 12 The whole process of the guardrail from being erected for protection to being lowered is shown in sequence.

[0053] Fig. 9 and Fig.10 The guardrail in the middle is in an upright protective state; Fig. 9 In the embodiment, the guardrail lock hook 15 is hooked with the unlocking block 61; Fig.10 The guardrail in the middle is in a state of being about to be released but not yet unlocked, the guardrail lock hook 15 and the unlocking block 61 are still connected, but the unlocking block 61 is moving relative to the guardrail lock hook 15; Fig.11 , the unlocking block 61 has moved a sufficient distance downward to the guardrail hook 15, and the guardrail hook 15 and the unlocking block 61 have been unhooked and separated; Fig.11 The guardrail in the middle is unlocked and in the process of being lowered; Fig.12 The guardrail in the middle is in the lowered state.

[0054] Figure 13 to Figure 14 The bed with guardrail is in the combined state along Figure 4 Schematic diagram of CC section axonometric projection of CC section line in; Fig.13 The guardrail is in the state of being erected but still being lifted upward; the guardrail lock hook 15 and the unlocking block 61 have begun to contact each other, but the guardrail lock hook 15 has not yet been hooked onto the unlocking block 61; Fig.14 The middle guardrail lock hook 15 has been hooked to the unlocking block 61, and the guardrail is in an erected state.

[0055] like Figures 9 to 14 As shown, the unlocking pedal 70 can rotate around the first rotating shaft 66, the switch link 65 can rotate around the second rotating shaft 68, and the transverse link 64 can make the unlocking pedal 70 and the switch link 65 move synchronously. When the unlocking pedal 70 is forced to move, the movement of the unlocking pedal 70 will also drive the movement of the transverse link 64 and the switch link 65 in turn, and also make the guardrail control switch 30 move; when the alarm device and the guardrail control switch 30 are set synchronously, the movement of the unlocking pedal 70 can also trigger the alarm device to output an alarm message.

[0056] Similarly, when the guardrail control switch 30 is turned, the switch link 65, the transverse link 64, the joint link 63 and the unlocking block link 62 will be driven to move in sequence, and the unlocking pedal 70 will also be driven to move; that is, the alarm device can be triggered when the above two methods are controlled. Of course, the alarm device can also be set with a switch to actively turn off the function of outputting its alarm information, or select an alarm that is not likely to cause disturbance, such as only outputting one of the sound and light alarm information.

[0057] like Figures 9 to 14 As shown, when someone steps on the unlocking pedal 70 or the patient pushes the guardrail control switch 30 upward, the unlocking pedal 70 rotates counterclockwise around the first rotating shaft 66, and the joint connecting rod 63 connected to the unlocking pedal also moves. The movement of the joint connecting rod 63 drives the unlocking block connecting rod 62 and the unlocking block 61 to slide downward, so that the left guardrail 10 is unhooked from the guardrail lock hook 15.

[0058] like Figures 9 to 14 As shown Figure 5 As shown, after the left guardrail 10 is unhooked from the guardrail lock hook 15, the left guardrail 10 can rotate and move up and down under the drive of the four-bar linkage. The four-bar linkage includes a guardrail link fixing portion 17 fixed to the guardrail 10, a four-bar linkage body 16, and a bed link fixing portion 26 fixed to the bed body.

[0059] like Figures 9 to 12 As shown, after the left guardrail 10 is unhooked from the guardrail hook 15, the left guardrail 10 can rotate and move up and down under the drive of the four-bar linkage. The joint connecting rod 63 and the switch connecting rod 65 return to their original positions under the action of the first return spring 67 and the second return spring 69. Fig.12 The figure shows that the left guardrail 10 is at the lowest end and the joint link 63 and the switch link 65 have returned to their original positions. One end of the first return spring 67 is connected to the bed frame 21, and the other end of the first return spring 67 is connected to the joint link 63. The joint link 63 is fixedly connected to the unlocking pedal 70. One end of the second return spring 69 is connected to the bed frame 21, and the other end of the second return spring 69 is connected to the switch link 65.

[0060] like Figure 13 to Figure 14 As shown, when the left guardrail 10 is pulled upward, the guardrail lock hook 15 on the left guardrail 10 contacts the unlocking block 61, causing the unlocking block 61 to slide downward. When the left guardrail 10 continues to move upward, the unlocking block 61 clamps the left guardrail lock hook 15 under the action of the first return spring 67 and the second return spring 69, causing the left guardrail 10 to return to the bed rail position.

[0061] A hospital bed with guardrails, wherein two guardrails are respectively arranged on both sides of the main body of the hospital bed; when the guardrails are raised, the raised guardrails partially or completely protect the edge of the main body of the hospital bed; when the guardrails are lowered, the edge of the main body of the hospital bed is open; a guardrail control switch independently controls the raising and lowering of a guardrail; the position of the guardrail control switch and the position of the guardrail controlled by the guardrail control switch are respectively arranged on both sides of the longitudinal center section or longitudinal center line of the main body of the hospital bed, or the position of the guardrail control switch is arranged on the opposite side of the guardrail controlled by it. Non-same-side control guardrails avoid the situation that the patient will approach the edge of the bed when the same-side control is used, thereby avoiding the situation that the patient accidentally falls from the bed; it takes into account the patient's autonomous control intention and avoids the accidental fall when the same-side control is used.

[0062] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hospital bed with guardrails, characterized in that: The invention comprises a bed body (20), a guardrail (10) and a guardrail control switch (30); the guardrail control switch (30) is used to control the raising and lowering of the guardrail (10); When the guardrail (10) is raised, the raised guardrail (10) partially or completely protects one side edge of the bed body (20); when the guardrail (10) is lowered, one side edge of the bed body (20) is open; The position of the guardrail control switch (30) and the position of the guardrail (10) controlled by the guardrail control switch (30) are respectively arranged on both sides of the longitudinal center section or the longitudinal center line of the bed body (20); Or the guardrail control switch (30) is arranged at the head side of the bed body (20); It also includes a switch linkage component; the guardrail control switch (30) is connected to the guardrail (10) controlled by it through the switch linkage component, and controls the lifting and lowering of the guardrail (10); The guardrail (10) further comprises a guardrail locking hook (15); The switch linkage assembly comprises an unlocking block (61), an unlocking block connecting rod (62), a joint connecting rod (63), a transverse connecting rod (64) and a switch connecting rod (65); one end of the unlocking block (61) is used for movably contacting the guardrail lock hook (15), and the other end of the unlocking block (61) is connected to the unlocking block connecting rod (62); one end of the unlocking block connecting rod (62) is connected to the joint connecting rod (63); one end of the joint connecting rod (63) is connected to one end of the transverse connecting rod (64); the other end of the transverse connecting rod (64) is connected to one end of the switch connecting rod (65), and the other end of the switch connecting rod (65) is connected to the unlocking dial handle (36); When the guardrail (10) is raised, the unlocking block (61) abuts against the guardrail locking hook (15), so that the guardrail (10) is fixed in a raised state; The guardrail control switch (30) comprises an unlocking handle (36) and a handle connecting rod (37); the unlocking handle (36) is a contact part for a controller to operate the guardrail control switch (30); the unlocking handle (36) and the handle connecting rod (37) are fixedly connected; the handle connecting rod (37) and the switch connecting rod (65) are connected; when the guardrail control switch (30) is turned, that is, the unlocking handle (36) is turned or lifted, the movement of the unlocking handle (36) will drive the switch connecting rod (65), the transverse connecting rod (64), the joint connecting rod (63) and the unlocking block connecting rod (62) to move in sequence; the movement of the unlocking block connecting rod (62) will drive the unlocking block (61) to move, and the movement of the unlocking block (61) causes the position of the unlocking block (61) relative to the guardrail lock hook (15) to change, so that the guardrail lock hook (15) is no longer resisted by the unlocking block (61), and the guardrail (10) will descend under the action of gravity; The combined connecting rod (63) comprises a combined connecting rod transverse portion (631) and a combined connecting rod longitudinal portion (632); One end of the combined connecting rod transverse portion (631) and one end of the combined connecting rod longitudinal portion (632) are fixedly connected to form an L-shaped combined connecting rod (63); An unlocking link engaging groove (635) is disposed at one end of the combined link transverse portion (631), and the unlocking block link (62) is engaged in the unlocking link engaging groove (635), so that the unlocking block link (62) and the combined link (63) are connected; The switch linkage assembly also includes an unlocking pedal (70); One end of the unlocking pedal (70) is connected to the lower end of the longitudinal portion of the joint connecting rod (632); The other end of the unlocking pedal (70) is used to receive the force applied from outside the bed body; When an external force is applied to the unlocking pedal (70), the unlocking pedal (70) drives the joint connecting rod (63) and the unlocking block connecting rod (62) to move; the movement of the unlocking block connecting rod (62) drives the unlocking block (61) to move, and the movement of the unlocking block (61) causes the position of the unlocking block (61) relative to the guardrail lock hook (15) to change, so that the guardrail lock hook (15) is no longer supported by the unlocking block (61), and the guardrail (10) descends under the action of gravity, and the guardrail (10) is unlocked in a state of being erected on the edge of the bed; At the same time, by driving the joint connecting rod (63), the movement of the unlocking pedal (70) will also drive the movement of the transverse connecting rod (64) and the switch connecting rod (65) in turn; The switch linkage assembly further includes a first rotating shaft (66) and a second rotating shaft (68); A transverse bracket (21) is provided at the bottom of the bed body (20); a first bracket connection portion (216) and a second bracket connection portion (217) are provided at the lower portion of the transverse bracket (21); a first bracket connection hole (2161) is provided on the first bracket connection portion (216), and a second bracket connection hole (2171) is provided on the second bracket connection portion (217); The combined connecting rod (63) is provided with a combined connecting rod first connecting hole (636); The switch connecting rod (65) is provided with a switch connecting rod first connecting hole (656); The first rotating shaft (66) passes through the first connecting hole (2161) of the bracket and the first connecting hole (636) of the joint connecting rod, so as to movably connect the joint connecting rod (63) and the bed body (20); The second rotating shaft (68) passes through the second connecting hole (2171) of the bracket and the first connecting hole (656) of the switch connecting rod, so as to flexibly connect the switch connecting rod (65) and the bed body (20); Both ends of the transverse connecting rod (64) are respectively provided with a joint connecting rod connecting hole and a switch connecting rod connecting hole; The joint connecting rod (63) is provided with a joint connecting rod second connecting hole (634); The switch connecting rod (65) is provided with a switch connecting rod second connecting hole (655); The fastener passes through the joint connecting rod connection hole and the second connecting rod connection hole (634) to flexibly connect the joint connecting rod (63) and the transverse connecting rod (64); the fastener passes through the second connecting rod connection hole (655) and the switch connecting rod connection hole to flexibly connect the switch connecting rod (65) and the transverse connecting rod (64); the switch linkage assembly also includes a first return spring (67) and a second return spring (69); a first spring hook (218) is provided on the first connecting portion (216) of the bracket, and a second spring hook (218) is provided on the second connecting portion (217) of the bracket The connecting rod (63) is provided with a first return spring hole (637); one end of the first return spring (67) is connected to the first return spring hole (637), and the other end of the first return spring (67) is connected to the first spring hook (218); the switch connecting rod (65) is provided with a second return spring hole (659); one end of the second return spring (69) is connected to the second return spring hole (659), and the other end of the second return spring (69) is connected to the second spring hook (219).

2. The hospital bed with guardrails according to claim 1, characterized in that: The guardrail control switch (30) is positioned on the opposite side of the guardrail (10) it controls.

3. The hospital bed with guardrails according to claim 1, characterized in that: There are two guardrails (10), which are respectively arranged on both sides of the bed body (20); There are also two guardrail control switches (30); A guardrail control switch (30) independently controls the lifting and lowering of a guardrail (10).

4. The hospital bed with guardrails according to claim 1, characterized in that: It also includes an alarm device; the alarm device is also controlled by the guardrail control switch (30); When the guardrail control switch (30) is turned on or touched, the alarm device will emit any one of the sound, light and electricity alarm information to prompt that the guardrail switch (30) is being turned on or touched.

5. A bed control method, characterized in that: Used to control a hospital bed with guardrails as described in any one of claims 1 to 4; The method comprises the steps of controlling the raising and lowering of the guardrail (10) by operating the guardrail control switch (30); The hospital bed with guardrails also includes an alarm device; the alarm device is also controlled by the guardrail control switch (30); The bed control method further comprises an alarm step, wherein when the guardrail control switch (30) is turned or touched, the alarm device will emit any one of sound, light and electricity alarm information to prompt that the guardrail switch (30) is being turned; The guardrail control switch (30) also includes a damping device for preventing false triggering; The alarm device includes a nurse call system access port, and the nurse call system access port is used to access an external nurse call system; The alarm device also includes an alarm control unit; the alarm control unit is used to receive a first control instruction, a second control instruction and a third control instruction input from the outside; the first control instruction is used to control whether the alarm device establishes a connection with an external nurse call system; the second control instruction is used to control whether the alarm device outputs sound and light alarm information; the third control instruction is used to turn off the alarm function of the alarm device; The alarm control unit is provided with a protection mechanism to prevent misoperation.

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