Multi-voltage output device and mobile ward round vehicle

Through the design of multi-voltage output devices and DC power board, the problem of excessive batteries when powering multiple devices is solved, and efficient battery utilization and safety are achieved.

CN223246315UActive Publication Date: 2025-08-19TOPAK POWER TECH CO LTD
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Patent Information

Application Number
CN202422451670.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-08-19
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

In the prior art, when supplying power to multiple devices, each device is equipped with a corresponding power supply battery, causing too many batteries to occupy space and increase fire hazards.

Method used

Using a multi-voltage output device, the output voltage of the battery is converted into multiple different output voltages through the DC power board, and powered through multiple voltage output terminals is powered. The flexible control and monitoring of voltage is achieved by combining the touch unit and the indicator unit.

Benefits of technology

The flexibility and efficiency of powering multiple devices is achieved, reducing battery count, and reducing space occupancy and fire protection risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-voltage output device and a mobile ward round vehicle, and the multi-voltage output device comprises a battery which is used for providing electric energy; the input end of the DC power panel is connected with the battery; the DC power panel is provided with a plurality of voltage output ends; the touch control unit is connected with the controlled end of the DC power panel; the touch control unit is used for outputting a trigger signal to the DC power panel when being triggered; and the DC power panel is used for converting the output voltage of the battery when receiving the trigger signal, and outputting different output voltages through a plurality of voltage output ends. According to the utility model, the output voltage of the battery is converted into a plurality of different output voltages through the DC power panel, and the output voltages are respectively output through the voltage output ends, thereby achieving the purpose of supplying power to a plurality of devices to be supplied with power.
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Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a multi-voltage output device and a mobile ward inspection vehicle. Background Art

[0002] The operating voltage of each device may be inconsistent. Although the current solution of designing power supply batteries for specific devices can reduce power supply costs, when multiple devices need to be powered, each device must be equipped with a corresponding power supply battery, which can easily lead to too many power supply batteries, which not only takes up space but also increases fire hazards. Utility Model Content

[0003] The multi-voltage output device proposed in the present invention includes:

[0004] Batteries, used to provide electrical energy;

[0005] A DC power supply board, the input end of which is connected to the battery; the DC power supply board has multiple voltage output ends;

[0006] A touch control unit connected to the controlled end of the DC power board; the touch control unit is used to output a trigger signal to the DC power board when triggered;

[0007] The DC power supply board is used to convert the output voltage of the battery when receiving a trigger signal, and output different output voltages through multiple voltage output terminals.

[0008] Optionally, the DC power supply board includes:

[0009] a first voltage output terminal, a second voltage output terminal, and a third voltage output terminal;

[0010] When receiving the trigger signal, the DC power supply board converts the output voltage of the battery and outputs the first voltage to the first voltage output terminal and the second voltage output terminal;

[0011] When receiving the trigger signal, the DC power supply board converts the output voltage of the battery and outputs a second voltage to the third voltage output terminal.

[0012] Optionally, the multi-voltage output device further includes:

[0013] Indicator unit; the indicator unit is connected to the output end of the battery, for detecting the output voltage of the battery, and indicating the output voltage of the battery by the number of lights on the indicator light in the indicator unit.

[0014] Optionally, the indicating unit includes:

[0015] First to fourth indicator lights;

[0016] Control unit; the control unit is connected to the first to fourth indicator lights respectively;

[0017] The control unit is used to control the first to fourth indicator lights to all light up when the output voltage of the battery is greater than the first set voltage; the control unit is also used to control three of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the second set voltage and less than the first set voltage; the control unit is also used to control two of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the third set voltage and less than the second set voltage; the control unit is also used to control one of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the fourth set voltage and less than the third set voltage; the control unit is also used to control one of the first to fourth indicator lights to flash when the output voltage of the battery is less than the fourth set voltage.

[0018] The utility model also provides a mobile ward inspection vehicle, which includes the multi-voltage output device.

[0019] Optionally, the mobile ward round vehicle further comprises:

[0020] Battery compartment, casters, base, supports and placement table;

[0021] The multi-voltage output device is arranged in the battery compartment; the casters are arranged on the lower side of the base, and a support member is installed on the upper side of the base; one end of the support member is connected to the base, and the other end is fixedly connected to the placement table; the placement table is used to place medical equipment.

[0022] Optionally, the mobile ward round vehicle further comprises: a motor; the motor is connected to the voltage output terminal of the DC power supply board;

[0023] The support member includes a motor telescopic rod;

[0024] The motor is connected to the motor telescopic rod through a transmission gear.

[0025] Optionally, the touch control unit includes:

[0026] a first touch control, a second touch control, and a third touch control;

[0027] The first touch control component is configured to output a trigger signal to the DC power supply board when triggered;

[0028] The second touch control is used to output a table top raising signal to the DC power supply board when triggered; when the DC power supply board receives the table top raising signal, it adjusts the voltage signal output to the motor so that the motor rotates to drive the motor extension rod to increase the height of the placement table;

[0029] The third touch component is used to output a table lowering signal to the DC power board when triggered; when the DC power board receives the table lowering signal, it adjusts the voltage signal output to the motor so that the motor rotates to drive the motor telescopic rod to lower the height of the placement table.

[0030] Optionally, the mobile ward round vehicle further comprises: a display screen;

[0031] The power supply end of the display screen is connected to the output end of the DC power supply board.

[0032] The utility model discloses a multi-voltage output device and a mobile ward inspection vehicle, wherein the multi-voltage output device includes: a battery for providing electrical energy; a DC power supply board, the input end of which is connected to the battery; the DC power supply board having multiple voltage output ends; a touch unit connected to the controlled end of the DC power supply board; the touch unit is configured to output a trigger signal to the DC power supply board when triggered; and the DC power supply board is configured to convert the output voltage of the battery upon receiving the trigger signal, outputting different output voltages through multiple voltage output ends. The utility model converts the output voltage of the battery into multiple different output voltages through the DC power supply board, and outputs them respectively through multiple voltage output ends, thereby achieving the goal of powering multiple devices to be powered. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a structural diagram of an embodiment of a multi-voltage output device of the present utility model;

[0035] Figure 2 This is a structural diagram of another embodiment of the multi-voltage output device of the present utility model;

[0036] Figure 3 This is a structural diagram of an embodiment of the mobile ward inspection vehicle of the present utility model;

[0037] Figure 4 This is a structural diagram of another embodiment of the mobile ward round vehicle of the present utility model.

[0038] Description of Figure Numbers:

[0039]

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0044] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0045] It should be noted that, in a specific scenario where the devices to be powered are determined, the batteries 20 corresponding to the devices to be powered can be combined and integrated together to form a battery 20 module to power the devices to be powered. However, this solution is suitable for situations where the number of devices to be powered is small and fixed; it is not suitable for situations where the number of devices to be powered is large or the number of devices to be powered changes.

[0046] The utility model proposes a multi-voltage output device, referring to Figure 1 , the multi-voltage output device comprises:

[0047] a battery 20 for providing electrical energy;

[0048] A DC power supply board, the input end of which is connected to the battery 20; the DC power supply board has a plurality of voltage output ends 310;

[0049] A touch control unit 10 is connected to the controlled end of the DC power board; the touch control unit 10 is used to output a trigger signal to the DC power board when triggered;

[0050] The DC power board is used to convert the output voltage of the battery 20 when receiving a trigger signal, and output different output voltages through multiple voltage output terminals 310.

[0051] It should be noted that the DC power board includes a DCDC conversion circuit, which also has multiple voltage output terminals 310. In one example of this solution, the DC power board may include multiple DCDC conversion circuits, each of which has an input connected to the battery 20 and an output connected to a corresponding voltage output terminal 310. Each DCDC conversion circuit output terminal may be connected to one or more voltage output terminals 310, and the voltage output terminals 310 connected to the same DCDC conversion circuit output the same voltage value. The DCDC conversion circuit may be a boost circuit or a buck circuit. In another example of this solution, the DC power board includes a multi-output DCDC conversion circuit that converts the output voltage of the battery 20 and outputs different voltage signals through the multiple voltage output terminals 310.

[0052] In its natural state, the DC power board is inoperative. The touch control unit 10 is connected to the controlled end of the DC power board. The touch control unit 10 may include a trigger element such as a touch key, a button, or a key. An operator can operate the touch control unit 10 by touching, pressing, or clicking it to trigger it. When triggered, the touch control unit 10 outputs a trigger signal to the DC power board, causing it to convert the output voltage of the battery 20 and output different voltages through the multiple voltage output terminals 310.

[0053] It is easy to understand that the operator can control the operation of the DC power board by triggering the touch unit 10, and complete the task of shutting down the DC power board in order to reduce costs; the operator triggers the touch unit 10 so that the touch unit 10 outputs a trigger signal to the DC power board. When the DC power board receives the trigger signal, it records the number of times the trigger signal is received and determines whether the number is odd or even. The DC power board corresponding to the odd number can be turned on and run, and the DC power board corresponding to the even number can be shut down. Through the number of trigger signals, the DC power board can identify the operator's intention and start or shut down. It should be noted that the DC power board may include a controller such as SOC, MCU, FPGA or IC, which is used to record the number of trigger signals and calculate the parity of the trigger signal. The DC power board may also include an analog circuit for calculating the parity of the trigger signal.

[0054] The battery 20 may include a lithium iron phosphate cell. The output terminals of the battery 20 may be a DC5521 female fast plug and a DC5521 male fast plug.

[0055] The present invention discloses a multi-voltage output device, comprising: a battery 20 for providing electrical energy; a DC power board having an input end connected to the battery 20; the DC power board having multiple voltage output terminals 310; a touch unit 10 connected to a controlled end of the DC power board; the touch unit 10 configured to output a trigger signal to the DC power board when triggered; and the DC power board configured to convert the output voltage of the battery 20 upon receiving the trigger signal, outputting different output voltages through the multiple voltage output terminals 310. The present invention converts the output voltage of the battery 20 into multiple different output voltages through the DC power board, and outputs them separately through the multiple voltage output terminals 310, thereby achieving the goal of powering multiple devices to be powered.

[0056] In one example of the present invention, the DC power supply board includes:

[0057] a first voltage output terminal, a second voltage output terminal, and a third voltage output terminal;

[0058] When receiving the trigger signal, the DC power board converts the output voltage of the battery 20 and outputs the first voltage to the first voltage output terminal and the second voltage output terminal;

[0059] When receiving the trigger signal, the DC power board converts the output voltage of the battery 20 and outputs the second voltage to the third voltage output terminal.

[0060] It is easy to understand that if the operating voltages of the devices to be powered overlap, multiple voltage output terminals 310 can be provided to output common operating voltages to meet daily usage conditions. In this example, the first and second voltage output terminals 310 output a first voltage, and the third voltage output terminal 310 outputs a second voltage. The first and second voltages can be determined by R&D personnel based on product design requirements.

[0061] It is easy to understand that the power of the battery 20 is continuously reduced in the process of supplying power to the device to be powered. In order to avoid the operator not being able to understand the power of the battery 20 in time, the output voltage of the battery 20 is insufficient to output the first voltage and the second voltage after being converted by the DC power board. Figure 2 , the multi-voltage output device in this solution also includes:

[0062] Indication unit 40; the indication unit 40 is connected to the output end of the battery 20, for detecting the output voltage of the battery 20, and indicating the output voltage of the battery 20 by the number of lights on the indicator light in the indication unit 40.

[0063] It should be noted that the indicator unit 40 has multiple indicator lights. To inform the operator of the battery 20 charge level, the indicator unit 40 can, after detecting the output voltage of the battery 20, categorize the battery 20 charge level into levels based on the battery 20 output voltage based on the number of indicator lights. For example, if there are six indicator lights, the battery 20 charge level is categorized into six levels based on the battery 20 output voltage, with each level corresponding to a voltage range. If the battery 20 output voltage is within a certain voltage range, the battery 20 charge level is at the level corresponding to that voltage range. For ease of understanding, the battery 20 charge level is determined by the number of illuminated indicator lights. For example, if the battery 20 is fully charged, all six indicator lights are illuminated; as the battery 20 charge level decreases, the number of illuminated indicator lights decreases. The indicator unit 40 may include a voltage detection circuit for detecting the output voltage value of the battery 20.

[0064] Reference Figure 3 In one example of the present invention, the indicating unit 40 includes:

[0065] First to fourth indicator lights LED4;

[0066] Control unit; the control unit is connected to the first to fourth indicator lights LED4 respectively;

[0067] The control unit is used to control the first to fourth indicator lights LED4 to light up when the output voltage of the battery 20 is greater than the first set voltage; the control unit is also used to control three indicator lights among the first to fourth indicator lights LED4 to light up when the output voltage of the battery 20 is greater than the second set voltage and less than the first set voltage; the control unit is also used to control two indicator lights among the first to fourth indicator lights LED4 to light up when the output voltage of the battery 20 is greater than the third set voltage and less than the second set voltage; the control unit is also used to control one indicator light among the first to fourth indicator lights LED4 to light up when the output voltage of the battery 20 is greater than the fourth set voltage and less than the third set voltage; the control unit is also used to control one indicator light among the first to fourth indicator lights LED4 to flash when the output voltage of the battery 20 is less than the fourth set voltage.

[0068] Since the reduction of the power of the battery 20 is a continuous process, although the change in the number of indicator lights can reflect the change in the power of the battery 20, the indicator lights that light up are randomly selected, which may cause confusion for the operator.

[0069] It will be readily understood that, in order to provide a more regular display of indicator lights, the first to fourth indicator lights LED 4 can be switched on and off as follows: If the output voltage of the battery 20 is greater than the second set voltage and less than the first set voltage, the fourth indicator light LED 4 is turned off, while the first to third indicator lights LED 3 remain on. If the output voltage of the battery 20 is greater than the third set voltage and less than the second set voltage, the third indicator light LED 3 is further turned off, while the first and second indicator lights LED 1 and LED 2 remain on. If the output voltage of the battery 20 is greater than the fourth set voltage and less than the third set voltage, the second indicator light LED 2 is further turned off, while the first indicator light LED 1 remains on. If the output voltage of the battery 20 is less than the fourth set voltage, the first indicator light LED 1 is controlled to flash at a preset frequency. The first to fourth set voltages are determined by the developer. In one embodiment, the first set voltage is 13.3V, the second set voltage is 12.8V, the third set voltage is 12.3V, and the fourth set voltage is 11.8V.

[0070] The indicator light may be an LED light or an OLED light.

[0071] In practice, mobile ward round carts have emerged to help doctors better understand patients' conditions and facilitate treatment during ward rounds. These carts carry multiple medical devices, making them convenient for doctors to use and saving patients time traveling to specific areas for examinations and treatment. It's important to note that the operating voltages of the various medical devices on a mobile ward round cart may vary, and medical staff will place different devices on the cart depending on the ward round task. In summary, mobile ward round carts require devices with multiple voltage outputs.

[0072] The utility model also provides a mobile ward inspection vehicle, which includes the multi-voltage output device.

[0073] Reference Figure 4 The mobile ward round vehicle also includes:

[0074] Battery compartment 1, casters 2, base 3, support 4 and placement table 5;

[0075] The multi-voltage output device is arranged in the battery compartment 1; the caster 2 is arranged on the lower side of the base 3, and a support member 4 is installed on the upper side of the base 3; one end of the support member 4 is connected to the base 3, and the other end is fixedly connected to the placement table 5; the placement table 5 is used to place medical equipment.

[0076] like Figure 4 As shown, the mobile ward rounds vehicle moves on casters 2, which are mounted on one side of a base 3. One end of a support member 4 is mounted on the other side of the base 3, and a placement table 5 is fixedly provided on the other end of the support member 4. The placement table 5 is used to place medical equipment. The types and styles of the medical equipment are not limited here. It is easy to understand that the power supply end of the medical equipment is connected to the corresponding voltage output end 310 of the DC power board in the multi-voltage output device. Specifically, the power supply end is connected to the voltage output end 310 that outputs its working voltage. The battery 20 can be arranged on the lower side of the placement table 5 or on the upper side of the base 3. The support member 4 can be made of metal or high-strength plastic.

[0077] It is easy to understand that during ward rounds, patients may be in different postures, lying on the bed, sitting on the bed, or on a stool. In order to match the patient's posture, the height of the medical equipment on the placement table 5 needs to be adjusted. The mobile ward round vehicle also includes: a motor; the motor is connected to the voltage output terminal 310 of the DC power board;

[0078] The support member 4 includes a motor telescopic rod;

[0079] The motor is connected to the motor telescopic rod through a transmission gear.

[0080] It should be understood that the motor's telescopic rod is connected to the platform 5 at one end and to the base 3 at the other. The motor can adjust its length, thereby changing the height of the platform 5. Specifically, when the length of the motor's telescopic rod decreases, the platform 5's height decreases; when the length of the motor's telescopic rod increases, the platform 5's height increases. The motor is connected to the voltage output terminal 310 of the DC power board and is powered by the DC power board. In one embodiment, the motor can be a stepper motor or a servo motor.

[0081] In order to facilitate the operator to control the length of the motor telescopic rod, the touch unit 10 includes:

[0082] A first touch group S1, a second touch group S2 and a third touch group S3;

[0083] The first touch control element S1 is configured to output a trigger signal to the DC power board when triggered;

[0084] The second touch panel S2 is configured to output a table-top raising signal to the DC power board when triggered; upon receiving the table-top raising signal, the DC power board adjusts the voltage signal output to the motor so that the motor rotates to drive the motor extension rod, thereby increasing the height of the placement table 5;

[0085] The third touch panel S3 is used to output a table lowering signal to the DC power board when triggered; when the DC power board receives the table lowering signal, it adjusts the voltage signal output to the motor so that the motor rotates to drive the motor telescopic rod to lower the height of the placement table 5.

[0086] The first to third touch components S1 to S3 may be keys, buttons, or switches.

[0087] In one example, when the second touch panel S2 is triggered, the motor rotates forward and the placement platform 5 rises. When the third touch panel S3 is triggered, the motor rotates reverse and the placement platform 5 falls.

[0088] It is easy to understand that doctors generally need to diagnose and treat multiple patients during ward rounds; at this time, they need to quickly understand the patient's previous condition. Although the diagnosis and treatment record book can provide some information, it is not intuitive and comprehensive enough.

[0089] In the present utility model, the mobile ward inspection vehicle further comprises: a display screen 6;

[0090] The power supply end of the display screen 6 is connected to the output end of the DC power supply board.

[0091] The present invention uses a display screen 6 to provide doctors with a digital display of the patient's condition, and can be combined with a software system to analyze the patient's condition data, which helps doctors quickly understand the patient's condition. The display screen 6 can be part of an all-in-one machine. In addition, the mobile ward round vehicle can also include a host computer connected to the display screen 6. The host computer displays the patient's condition after processing it on the display screen 6.

[0092] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A multi-voltage output device, characterized in that: The multi-voltage output device comprises: Batteries, used to provide electrical energy; A DC power supply board, the input end of which is connected to the battery; the DC power supply board has multiple voltage output ends; A touch control unit connected to the controlled end of the DC power board; the touch control unit is used to output a trigger signal to the DC power board when triggered; The DC power supply board is used to convert the output voltage of the battery when receiving a trigger signal, and output different output voltages through multiple voltage output terminals.

2. The multi-voltage output device according to claim 1, wherein: The DC power supply board includes: a first voltage output terminal, a second voltage output terminal, and a third voltage output terminal; When receiving the trigger signal, the DC power supply board converts the output voltage of the battery and outputs the first voltage to the first voltage output terminal and the second voltage output terminal; When receiving the trigger signal, the DC power supply board converts the output voltage of the battery and outputs a second voltage to the third voltage output terminal.

3. The multi-voltage output device according to claim 1, wherein: The multi-voltage output device further includes: Indicator unit; the indicator unit is connected to the output end of the battery, for detecting the output voltage of the battery, and indicating the output voltage of the battery by the number of lights on the indicator light in the indicator unit.

4. The multi-voltage output device according to claim 3, wherein: The indicating unit includes: First to fourth indicator lights; Control unit; the control unit is connected to the first to fourth indicator lights respectively; The control unit is used to control the first to fourth indicator lights to all light up when the output voltage of the battery is greater than the first set voltage; the control unit is also used to control three of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the second set voltage and less than the first set voltage; the control unit is also used to control two of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the third set voltage and less than the second set voltage; the control unit is also used to control one of the first to fourth indicator lights to light up when the output voltage of the battery is greater than the fourth set voltage and less than the third set voltage; the control unit is also used to control one of the first to fourth indicator lights to flash when the output voltage of the battery is less than the fourth set voltage.

5. A mobile ward inspection vehicle, characterized in that: The mobile ward round vehicle comprises the multi-voltage output device according to any one of claims 1 to 4.

6. The mobile ward inspection vehicle according to claim 5, characterized in that: The mobile ward inspection vehicle also includes: Battery compartment, casters, base, supports and placement table; The multi-voltage output device is arranged in the battery compartment; the casters are arranged on the lower side of the base, and a support member is installed on the upper side of the base; one end of the support member is connected to the base, and the other end is fixedly connected to the placement table; the placement table is used to place medical equipment.

7. The mobile ward inspection vehicle according to claim 6, characterized in that: The mobile ward inspection vehicle further comprises: a motor; the motor is connected to the voltage output terminal of the DC power supply board; The support member includes a motor telescopic rod; The motor is connected to the motor telescopic rod through a transmission gear.

8. The mobile ward inspection vehicle according to claim 7, characterized in that: The touch control unit includes: a first touch control, a second touch control, and a third touch control; The first touch control component is configured to output a trigger signal to the DC power supply board when triggered; The second touch control is used to output a table top raising signal to the DC power supply board when triggered; when the DC power supply board receives the table top raising signal, it adjusts the voltage signal output to the motor so that the motor rotates to drive the motor extension rod to increase the height of the placement table; The third touch component is used to output a table lowering signal to the DC power board when triggered; when the DC power board receives the table lowering signal, it adjusts the voltage signal output to the motor so that the motor rotates to drive the motor telescopic rod to lower the height of the placement table.

9. The mobile ward inspection vehicle according to claim 6, characterized in that: The mobile ward inspection vehicle further includes: a display screen; The power supply end of the display screen is connected to the output end of the DC power supply board.