Mechanical intelligent anti-bedsore cushion

Abstract

The utility model discloses an intelligent anti-bedsore cushion. The device comprises a mechanical control device and an electric control device, the mechanical control device comprises a first rotary valve, a first limiting switch matched with the first rotary valve, a second rotary valve and a second limiting switch matched with the second rotary valve, the device further comprises an air pump, and the first rotary valve is connected with a first mode switch; the second rotary valve is connected with a second mode switch, and the first mode switch and the second mode switch are connected in series in a control circuit capable of controlling the first rotary valve, the first limiting switch, the second rotary valve and the second limiting switch. The electric control device comprises a control circuit board, a third rotary valve and a third limiting switch, and a control unit is arranged in the control circuit board. The mattress has the advantages that manual operation can be achieved through a mechanical control device, automatic control can be achieved through an electric control device during sleeping so as to achieve a specific sleeping function, the mattress prevention problem is solved, and sleeping of a patient cannot be affected.

Description

Technical Field

[0001] The utility model relates to a bedsore prevention pad, in particular to a mechanical intelligent bedsore prevention pad. Background Art

[0002] At present in the market, bedsore prevention air cushions generally have a silent mode and a wave mode. The switching between these two modes requires a caregiver to switch. Among them, the wave mode can better prevent bedsores and is beneficial to the recovery of bedsores; in the static mode, although the trachea does not fluctuate, the sound is very small, which helps the patient sleep. Therefore, at night, if these two modes need to be balanced, the caregiver must adjust regularly to achieve this purpose, which is very inconvenient, greatly increasing the work intensity of the caregiver and also affecting the sleep quality of the user. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a mechanical intelligent bedsore prevention pad with a sleep function that can balance the silent and wave modes.

[0004] To solve the above technical problem, the mechanical intelligent bedsore prevention pad of the utility model includes a first rotary valve for controlling the silent and wave modes and a first limit switch cooperating with the first rotary valve, a second rotary valve for controlling the sleep mode and a second limit switch cooperating with the second rotary valve, and also includes an air pump controlled by the first rotary valve and the second rotary valve. The first rotary valve is connected with a first mode switch, the second rotary valve is connected with a second mode switch, and the first mode switch and the second mode switch are connected in series in a control circuit capable of controlling the first rotary valve, the first limit switch, the second rotary valve and the second limit switch, and can make the first rotary valve work in the wave mode or the silent mode or make the second rotary valve work in the sleep mode through the cooperation of the first mode switch and the second mode switch.

[0005] The control circuit includes a first control line and a second control line as the main circuits and a control loop connected to the main circuits.

[0006] The control loop includes a first branch directly connected between the first rotary valve and the second rotary valve on the second control line, a second branch connected between the first limit switch and the second limit switch, and a third branch connected between the first limit switch, the second limit switch and the first branch.

[0007] Both the first mode switch and the second mode switch are connected to the first branch. The third branch includes a main line connected between the first limit switch and the second limit switch and a slave line connected on the main line between the node of the first rotary valve and the first mode switch.

[0008] A interlock switch linked to the second mode switch is provided on the main circuit.

[0009] The first limit switch is a normally closed limit switch, and the second limit switch is a normally open limit switch.

[0010] A main switch is provided on the second control circuit.

[0011] The advantages of the present utility model are as follows:

[0012] By simultaneously providing a mechanical control device and designing the circuit structure, in addition to being able to achieve the conventional wave mode and silent mode by turning on and off the first mode switch, it is also possible to achieve automatic control through the closing of the second mode switch when sleeping is required to achieve a specific (combining both silent and wave modes) sleep function, that is: realizing wave and silence in segments through specific time periods, which not only solves the problem of preventing bedsores but also does not affect the patient's sleep. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic circuit diagram of the mechanical intelligent bedsore prevention pad of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The mechanical intelligent bedsore prevention pad of the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0015] As shown in the figure, the mechanical intelligent anti-pressure ulcer pad of the present utility model includes a first rotary valve 1 for controlling the silent and fluctuating modes and a first limit switch 2 cooperating with the first rotary valve, a second rotary valve 3 for controlling the sleep mode and a second limit switch 4 cooperating with the second rotary valve. Among them, the first limit switch 2 is a normally closed limit switch, and the second limit switch 4 is a normally open limit switch. It also includes an air pump 5 controlled by the first rotary valve 1 and the second rotary valve 3. The first rotary valve 1 is connected with a first mode switch 6, and the second rotary valve 3 is connected with a second mode switch 7. The first mode switch 6 and the second mode switch 7 are connected in series in a control circuit capable of controlling the first rotary valve 1, the first limit switch 2, the second rotary valve 3 and the second limit switch 4, and can cooperate through the first mode switch 6 and the second mode switch 7 to make the first rotary valve work in the fluctuating mode or the silent mode or make the second rotary valve work in the sleep mode. Among them, the said control circuit includes a first control line 11 and a second control line 12 as the main circuits and a control loop connected to the main circuit. A main switch 17 is provided on the second control line 12. The control loop includes a first branch 13 directly connected between the first rotary valve and the second rotary valve on the second control line 12, a second branch 14 connected between the first limit switch and the second limit switch, and a third branch 15 connected between the first limit switch, the second limit switch and the first branch.

[0016] Furthermore, the first mode switch 6 and the second mode switch 7 are both connected to the first branch. The third branch 15 includes a main line connected between the first limit switch 2 and the second limit switch 4 and a slave line connected on the main line between the node of the first rotary valve 1 and the first mode switch 6. A interlocking switch 16 interlocked with the second mode switch 7 is provided on the main line.

[0017] Its specific working principle is as follows:

[0018] The silent and fluctuating modes mainly adjust the on and off of the pipeline by controlling the rotation of the first rotary valve and the second rotary valve. Among them, the first rotary valve controls the silent and fluctuating modes, and the second rotary valve controls the sleep mode.

[0019] (1) When the first mode switch 6 is closed, the first rotary valve is always connected to the power supply, which is the fluctuating mode. No matter what state the second mode switch 7 is in, it does not affect the fluctuating mode. When the first mode switch 6 is opened, when the convex point of the first limit switch 2 and the first rotary valve 1 coincides, the first rotary valve loses power and stops working, which is the silent mode. When the second mode switch 7 is opened, it has no effect on the silent mode.

[0020] When the second mode switch 7 is closed, the second rotary valve 3 rotates continuously. When the bump of the second rotary valve 3 coincides with the bump of the second limit switch 4, the first rotary valve is powered on and starts to work, and the mattress starts to fluctuate. When the bump of the second rotary valve 3 separates from the bump of the second mode switch 4, the yellow circuit is de-energized at this time, and the first rotary valve 1 continues to work relying on the voltage from the first limit switch 2 until the bump of the first rotary valve and the first limit switch coincide again, and then it is in a static state again. Until the bump of the second rotary valve and the second limit switch come into contact again, it enters the next cycle. The rotation period of the first rotary valve is 15 minutes, and the rotation period of the second rotary valve is 120 minutes.

[0021] The sleep mode can not only achieve the mute function but also the fluctuation function.

[0022] Certainly, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A mechanical intelligent anti-bedsore pad, characterized in that: The invention comprises a first rotary valve (1) for controlling a silent and a pulsating mode and a first limit switch (2) cooperating with the first rotary valve, a second rotary valve (3) for controlling a sleeping mode and a second limit switch (4) cooperating with the second rotary valve, and also comprises an air pump (5) controlled by the first rotary valve (1) and the second rotary valve (3), wherein the first rotary valve (1) is connected to a first mode switch (6), and the second rotary valve (3) is connected to a second mode switch (7), wherein the first mode switch (6) and the second mode switch (7) are connected in series in a control circuit capable of controlling the first rotary valve (1), the first limit switch (2), the second rotary valve (3) and the second limit switch (4), and the first rotary valve (1) can be operated in a pulsating mode or a silent mode or the second rotary valve (2) can be operated in a sleeping mode by cooperating with the first mode switch (6) and the second mode switch (7).

2. The mechanical intelligent anti-bedsore pad according to claim 1, characterized in that: The control circuit comprises a first control circuit (11) and a second control circuit (12) as main circuits, and a control loop connected to the main circuit.

3. The mechanical intelligent anti-bedsore pad according to claim 2, characterized in that: The control circuit comprises a No. 1 branch (13) on a No. 2 control circuit (12) directly connected between a No. 1 rotary valve and a No. 2 rotary valve, a No. 2 branch (14) connected between a No. 1 limit switch and a No. 2 limit switch, and a No. 3 branch (15) connected between the No. 1 limit switch, the No. 2 limit switch and the No. 1 branch.

4. The mechanical intelligent anti-bedsore pad according to claim 3, characterized in that: The first mode switch (6) and the second mode switch (7) are both connected to the first branch line, and the third branch line (15) includes a main line connected between the first limit switch (2) and the second limit switch (4) and a slave line connected to the main line and located between the node of the first rotary valve (1) and the first mode switch (6).

5. The mechanical intelligent anti-bedsore pad according to claim 4, characterized in that: The main line is provided with an interlocking switch (16) interlocked with the second mode switch (7).

6. The mechanical intelligent anti-bedsore pad according to claim 5, characterized in that: The first limit switch (2) is a normally closed limit switch, and the second limit switch (4) is a normally open limit switch.

7. The mechanical intelligent anti-bedsore pad according to claim 6, characterized in that: The second control circuit (12) is provided with a main switch (17).

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