Balanced support system and method for medical devices

Abstract

The application relates to the technical field of medical equipment, and particularly provides a balance support system and method for medical equipment, which comprises a support platform, N electrically-driven feet connected to the support platform, a motor arranged on each electrically-driven foot, the electrically-driven feet controlling the ascending / descending of the support platform under the rotation of the motor, a limit sensor switch arranged on each electrically-driven foot, the limit sensor switch controlling the operation of the motor according to the contact between the electrically-driven feet and the ground, and a control module connected to the electrically-driven feet, wherein the control module comprises a motor driving module connected to the motor, and the control module drives the motor to rotate according to a received trigger signal. The application has the automatic leveling function, reduces the technical requirements, initial state and processing technology requirements of the electrically-driven feet, and replaces the hydraulic operation system in the traditional technology.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a system and method for balancing and supporting medical devices. Background Technology

[0002] In today's rapidly developing medical technology, mobile medical devices, such as mobile operating tables, mobile testing equipment, and mobile surgical equipment, are widely used. These devices are generally equipped with casters for easy movement, but stability and no shaking are required during treatment. The locking switches built into the casters are not stable enough. When using these locks to fix the device, uneven ground can cause the device to tilt or even move, affecting its use.

[0003] Using feet is a common solution: the feet are used to raise the equipment during operation to ensure its stability; after operation, the feet are retracted and the equipment is moved using casters. Existing foot types include hydraulic feet; manual feet are difficult to operate and inconvenient to use; hydraulic feet have complex hydraulic systems, are bulky, are difficult to install on small equipment, and pose a risk of oil leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a balance support system for medical devices, thereby solving the above-mentioned technical problems;

[0005] Another objective of this invention is to provide a method for balancing and supporting medical devices, thereby solving the above-mentioned technical problems;

[0006] The technical problem solved by this invention can be achieved by the following technical solutions:

[0007] A balance support system for medical devices, comprising:

[0008] Support platform (3);

[0009] N electric feet (2) are connected to the support platform (3). Each electric foot (2) is equipped with a motor (M). The electric feet (2) control the support platform (3) to rise / fall under the rotation of the motor (M). Each electric foot (2) is also equipped with a limit sensor switch (LS). The limit sensor switch (LS) controls the operation of the motor (M) according to the contact between the electric feet (2) and the ground.

[0010] A control module (1) is connected to the electric foot (2).

[0011] The motor driving module is connected with the motor (M), and the control module (1) drives the motor (M) to rotate according to the received trigger signal.

[0012] Wherein, N is a positive integer greater than 3.

[0013] Preferably, the control module (1) further comprises a control switch (4) connected with the signal input end of the control module (1) to transmit the trigger signal to the control module (1), wherein the trigger signal comprises a locking signal and an unlocking signal.

[0014] The control module (1) drives the motor (M) to rotate in the positive direction according to the received locking signal.

[0015] The control module (1) drives the motor (M) to rotate in the reverse direction according to the received unlocking signal.

[0016] Preferably, the motor driving module further comprises:

[0017] N positive direction driving relays (KR), each of which is connected with one of the motors (M) to drive the motor (M) to rotate in the positive direction.

[0018] N reverse direction driving relays (KB), each of which is connected with one of the motors (M) to drive the motor (M) to rotate in the reverse direction.

[0019] Preferably, the control module (1) comprises a logic control component, which comprises:

[0020] N ground-touching feedback relays (KN), each of which is connected with the normally open contact (NO) of one of the limit sensor switches (LS).

[0021] The normally open contacts (KNO) of all the ground-touching feedback relays (KN) are connected in sequence to form a power-on switch part (KPS).

[0022] A control relay (KC) and a time relay (KT), which are connected with the power-on switch part (KPS) in parallel.

[0023] Preferably, the normally open contact (KCO) of the control relay (KC) is connected with the normally closed contact (KTC) of the time relay (KT) to form a time delay control part (LC).

[0024] Preferably, the logic control component further comprises:

[0025] N leveling relays (KM) connected in parallel to the time delay control unit (LC), the normally open contact (KMO) of each leveling relay (KM) is connected to a forward driving relay (KR).

[0026] Preferably, further comprising:

[0027] A power supply (5) connected to the power interface of the control module (1);

[0028] A status indicator light (6) connected to the status signal output terminal of the control module (1) for displaying the working status of the balance support system.

[0029] A balance support method for medical equipment, applied to the balance support system, comprising:

[0030] If the control module (1) receives the trigger signal as the lock signal, the following steps are taken to lock the working platform (3);

[0031] Step S1, the forward driving relay (KR) drives the connected motor (M) to rotate forward, at the same time, it drives the electric ground shoe (2) to extend, when the electric ground shoe (2) contacts the ground, the normally closed contact (NC) of the limit sensor switch (LS) is disconnected, cutting off the power supply of the motor (M), stopping the extension of the electric ground shoe (2), at the same time, the normally open contact (NO) of the limit sensor switch (LS) is closed;

[0032] Step S2, when all the electric ground shoes (2) contact the ground and stop extending, the control module (1) controls all the motors (M) to rotate forward at the same time, driving the support platform (3) to rise;

[0033] Step S3, when the time of the continuous rising of the support platform (3) reaches a pre-set delay time, the control module (1) controls all the motors (M) to stop rotating, completing the locking work of the support platform (3);

[0034] If the control module (1) receives the trigger signal as the unlock signal, the reverse driving relay (KB) drives the corresponding motor (M) to rotate reversely, driving the electric ground shoe (2) to contract, completing the unlocking work of the support platform (3).

[0035] Preferably, step S2 comprises:

[0036] Step S21, after the normally open contact (NO) of the limit sensor switch (LS) is closed, the connected ground contact feedback relay (KN) receives a ground contact logic signal, and the normally open contact (KNO) of the ground contact feedback relay (KN) is controlled to be closed;

[0037] Step S22, when the normally open contacts (KNO) of all the ground contact feedback relays (KN) are closed, the power-on switch part (KPS) is turned on, the control relay (KC) and the time relay (KT) simultaneously receive a power-on logic signal, the normally open contact (KCO) of the control relay (KC) is closed, and the normally closed contact (KTC) of the time relay (KT) is closed within the delay time;

[0038] Step S23, the time delay control part (LC) is turned on within the delay time, and a leveling logic signal is transmitted to the leveling relay (KM);

[0039] Step S24, the normally open contacts (KMO) of all the leveling relays (KM) are closed at the same time, and a lock ground logic signal is transmitted to the forward driving relay (KR);

[0040] Step S25, the normally open contacts (KRO) of all the forward driving relays (KR) are closed, and the motor (M) is driven to rotate forward within the delay time.

[0041] Preferably, step S3 comprises:

[0042] Step S31, after the rotation duration of the motor reaches the delay time, the normally closed contact (KTC) of the time relay (KT) is disconnected;

[0043] Step S32, the normally open contacts (KMO) of all the leveling relays (KM) are simultaneously disconnected;

[0044] Step S33, the normally open contacts (KRO) of all the forward driving relays (KR) are disconnected, the power supply of the motor is cut off, and the motor (M) stops rotating at the same time.

[0045] The beneficial effects of the present application are: due to the above technical scheme, the present application has the automatic leveling function, reduces the technical requirements and initial state and processing technology requirements of the electric foot, replaces the hydraulic operation system, avoids the unstable operation and oil leakage risk of the hydraulic system. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a schematic diagram of the balance support system in the embodiment of the present application;

[0047] Figure 2 It is a schematic diagram of the motor driving module in the embodiment of the present application;

[0048] Figure 3 A circuit schematic diagram for driving the motor in the embodiment of the present application to rotate forwardly;

[0049] Figure 4 A circuit schematic diagram for driving the motor in the embodiment of the present application to rotate reversely;

[0050] Figure 5 A schematic diagram of transmission of the touch-down logic signal in the embodiment of the present application;

[0051] Figure 6 A schematic diagram of transmission of the power-on logic signal in the embodiment of the present application;

[0052] Figure 7 A schematic diagram of transmission of the leveling logic signal in the embodiment of the present application;

[0053] Figure 8 A schematic diagram of the balancing support method in the embodiment of the present application;

[0054] Figure 9 A schematic diagram of the step S2 in the embodiment of the present application;

[0055] Figure 10 A schematic diagram of the step S3 in the embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0057] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0058] The present application will be further described below with reference to the drawings and specific embodiments, but not as a limitation of the present application.

[0059] A balancing support system for a medical device, such as Figure 1 and Figure 2 comprises:

[0060] a support platform 3;

[0061] N electrically powered ground pegs 2 are connected to the support platform 3, each electrically powered ground peg 2 is provided with a motor M, each electrically powered ground peg 2 controls the support platform 3 to rise / fall under the rotation action of the motor M, and each electrically powered ground peg 2 is further provided with a limit sensor switch LS, which controls the operation of the motor M according to the contact condition of the electrically powered ground peg 2 with the ground;

[0062] A control module 1 is connected to the N electrically powered ground pegs 2, the control module 1 includes a motor drive module, the motor drive module is connected to the motor M, and the control module 1 drives the motor M to rotate according to a received trigger signal;

[0063] Wherein N is a positive integer greater than 3; preferably, at least three support points are required to stably support the platform, so the value of N is at least 3, but the overturning moment of the traditional three-point support platform 3 is small, that is, the platform support 3 is unstable when N is 3, and using five or more support points will greatly increase the complexity of the balanced support system, and the operation effect will also be affected, therefore, the embodiment preferably takes N as 4, which meets the stable demand of the support platform 3 while simplifying the structure of the balanced support system, so that the support platform has the characteristics of easy implementation, low price and wide application.

[0064] It should be noted that the value of N is 4, which is applicable to any one of the following embodiments, and different values can be taken according to needs in other embodiments.

[0065] Preferably, the electrical connection between the electrically powered ground peg 2 and the control module 1 includes a motor power supply line and a limit sensor signal line. The control module 1 realizes the forward and reverse rotation control of the motor M; the control module 1 judges the running state of the electrically powered ground peg 2 according to the state of the four limit sensor switches LS and controls the movement thereof.

[0066] Specifically, please continue to refer to Figure 1 The electrically powered ground peg 2 includes a first electrically powered ground peg 21, a second electrically powered ground peg 22, a third electrically powered ground peg 23 and a fourth electrically powered ground peg 24.

[0067] Further, the first electrically powered ground peg 21 is provided with a first limit sensor switch LS1, the second electrically powered ground peg 22 is provided with a second limit sensor switch LS2, and the third electrically powered ground peg 21 is provided with a first limit sensor switch LS1.

[0068] Specifically, please continue to refer to Figure 2 The motor drive module includes:

[0069] The first motor driving part comprises: a first motor M1, the first motor M1 is connected with a first limit sensor switch LS1, when the normally closed contact NC1 of the first limit sensor switch LS1 is closed, the first motor M1 keeps running, when the normally closed contact NC1 of the first limit sensor switch LS1 is disconnected, the first motor M1 stops running; the first motor M1 is connected with a forward rotation power supply V1 and a reverse rotation power supply V2, the normally open contact KRO1 of a first forward rotation driving relay KR1 is connected in series between the positive electrode of an input voltage terminal and the forward rotation power supply V1, the normally closed contact of the first forward rotation driving relay KR1 is connected in series between the negative electrode of the input voltage terminal and the forward rotation power supply V1, when the normally open contact KRO1 of the first forward rotation driving relay KR1 is closed, the forward rotation loop of the first motor M1 is conducted, and the first motor M1 is driven to rotate forwardly; the normally open contact KBO1 of a first reverse rotation driving relay KB1 is connected in series between the positive electrode of the input voltage terminal and the reverse rotation power supply V2, the normally closed contact of the first reverse rotation driving relay KB1 is connected in series between the negative electrode of the input voltage terminal and the reverse rotation power supply V2, when the normally open contact KBO1 of the first reverse rotation driving relay KB1 is closed, the reverse rotation loop of the first motor M1 is conducted, and the first motor M1 is driven to rotate reversely;

[0070] The second motor driving part is connected with the first motor driving part, and the second motor driving part comprises: a second motor M2, the second motor M2 is connected with a second limit sensor switch LS2, when the normally closed contact NC2 of the second limit sensor switch LS2 is closed, the second motor M2 keeps running, when the normally closed contact NC2 of the second limit sensor switch LS2 is disconnected, the second motor M2 stops running; the second motor M2 is connected with the forward rotation power supply V1 and the reverse rotation power supply V2, the normally open contact KRO2 of a second forward rotation driving relay KR2 is connected in series between the positive electrode of an input voltage terminal and the forward rotation power supply V1, the normally closed contact of the second forward rotation driving relay KR2 is connected in series between the negative electrode of the input voltage terminal and the forward rotation power supply V1, when the normally open contact KRO2 of the second forward rotation driving relay KR2 is closed, the forward rotation loop of the second motor M2 is conducted, and the second motor M2 is driven to rotate forwardly; the normally open contact KBO2 of a second reverse rotation driving relay KB2 is connected in series between the positive electrode of the input voltage terminal and the reverse rotation power supply V2, the normally closed contact of the second reverse rotation driving relay KB2 is connected in series between the negative electrode of the input voltage terminal and the reverse rotation power supply V2, when the normally open contact KBO2 of the second reverse rotation driving relay KB2 is closed, the reverse rotation loop of the second motor M2 is conducted, and the second motor M2 is driven to rotate reversely;

[0071] The third motor driving part is connected with the second motor driving part, and comprises: a third motor M3, the third motor M3 is connected with a third limit sensor switch LS3, when the normally closed contact NC3 of the third limit sensor switch LS3 is closed, the third motor M3 keeps running, when the normally closed contact NC3 of the third limit sensor switch LS3 is opened, the third motor M3 stops running; the third motor M3 is connected with a forward rotation power supply V1 and a reverse rotation power supply V2, the normally open contact KRO3 of a third forward rotation driving relay KR3 is connected in series between the positive electrode of an input voltage terminal and the forward rotation power supply V1, the normally closed contact of the third forward rotation driving relay KR3 is connected in series between the negative electrode of the input voltage terminal and the forward rotation power supply V1, when the normally open contact KRO3 of the third forward rotation driving relay KR3 is closed, the forward rotation loop of the third motor M3 is conducted, and the third motor M3 is driven to rotate forwardly; the normally open contact KBO3 of a third reverse rotation driving relay KB3 is connected in series between the positive electrode of the input voltage terminal and the reverse rotation power supply V2, the normally closed contact of the third reverse rotation driving relay KB3 is connected in series between the negative electrode of the input voltage terminal and the reverse rotation power supply V2, when the normally open contact KBO3 of the third reverse rotation driving relay KB3 is closed, the reverse rotation loop of the third motor M3 is conducted, and the third motor M3 is driven to rotate reversely.

[0072] The fourth motor driving part is connected with the third motor driving part, and comprises: a fourth motor M4, the fourth motor M4 is connected with a fourth limit sensor switch LS4, when the normally closed contact NC4 of the fourth limit sensor switch LS4 is closed, the fourth motor M4 keeps running, when the normally closed contact NC4 of the fourth limit sensor switch LS4 is opened, the fourth motor M4 stops running; the fourth motor M4 is connected with a forward rotation power supply V1 and a reverse rotation power supply V2, the normally open contact KRO4 of a fourth forward rotation driving relay KR4 is connected in series between the positive electrode of an input voltage terminal and the forward rotation power supply V1, the normally closed contact of the fourth forward rotation driving relay KR4 is connected in series between the negative electrode of the input voltage terminal and the forward rotation power supply V1, when the normally open contact KRO4 of the fourth forward rotation driving relay KR4 is closed, the forward rotation loop of the fourth motor M4 is conducted, and the fourth motor M4 is driven to rotate forwardly; the normally open contact KBO4 of a fourth reverse rotation driving relay KB4 is connected in series between the positive electrode of the input voltage terminal and the reverse rotation power supply V2, the normally closed contact of the fourth reverse rotation driving relay KB4 is connected in series between the negative electrode of the input voltage terminal and the reverse rotation power supply V2, when the normally open contact KBO4 of the fourth reverse rotation driving relay KB4 is closed, the reverse rotation loop of the fourth motor M4 is conducted, and the fourth motor M4 is driven to rotate reversely.

[0073] In a preferred embodiment, the support balancing system comprises a control switch 4, which is connected with the signal input end of the control module 1, and transmits a trigger signal to the control module 1, the trigger signal comprises a lock signal and an unlock signal;

[0074] The control module 1 drives the motor M to rotate forwardly according to the received lock signal;

[0075] The control module 1 drives the motor M to reverse rotation according to the received unlocking signal.

[0076] In a preferred embodiment, as shown in Figure 3 and Figure 4 The motor driving module further comprises:

[0077] N forward driving relays KR, each of which is connected with a motor and used for driving the motor M to rotate forward; preferably, the forward driving relays KR include a first forward driving relay KR1, a second forward driving relay KR2, a third forward driving relay KR3 and a fourth forward driving relay KR4;

[0078] N reverse driving relays KB, each of which is connected with a motor and used for driving the motor M to reverse rotation; preferably, the reverse driving relays KB include a first reverse driving relay KB1, a second reverse driving relay KB2, a third reverse driving relay KB3 and a fourth reverse driving relay KB4;

[0079] Specifically, please continue to refer to Figure 3 As shown, the normally closed contact NC1 of the first limit sensor switch LS1 is connected with the first forward driving relay KR1 to form a first lock-to-start branch, the normally closed contact NC2 of the second limit sensor switch LS2 is connected with the second forward driving relay KR2 to form a second lock-to-start branch, the normally closed contact NC3 of the third limit sensor switch LS3 is connected with the third forward driving relay KR3 to form a third lock-to-start branch, and the normally closed contact NC4 of the fourth limit sensor switch LS4 is connected with the fourth forward driving relay KR4 to form a fourth lock-to-start branch; the first lock-to-start branch, the second lock-to-start branch, the third lock-to-start branch and the fourth lock-to-start branch are connected in parallel between a lock switch KQ and a negative pole of an input voltage terminal, and the other end of the lock switch KQ is connected with a positive pole of the input voltage terminal.

[0080] Further, when the control switch 4 sends out the locking signal, the locking switch KQ is closed and the locking signal is transmitted to the first locking start branch, the second locking start branch, the third locking start branch and the fourth locking start branch in parallel. The normally closed contact NC1 of the first limit sensor switch LS1, the normally closed contact NC2 of the second limit sensor switch LS2, the normally closed contact NC3 of the third limit sensor switch LS3 and the normally closed contact NC4 of the fourth limit sensor switch LS4 remain closed after receiving the locking signal. The locking signal continues to be transmitted to the first forward drive relay KR1, the second forward drive relay KR2, the third forward drive relay KR3 and the fourth forward drive relay KR4. After receiving the locking signal, the normally open contact KRO1 of the first forward drive relay KR1 is closed, driving the first motor M1 to rotate forward. The normally open contact KRO2 of the second forward drive relay KR2 is closed, driving the second motor M2 to rotate forward. The normally open contact KRO3 of the third forward drive relay KR3 is closed, driving the third motor M3 to rotate forward. The normally open contact KRO4 of the fourth forward drive relay KR4 is closed, driving the fourth motor M4 to rotate forward.

[0081] Specifically, please continue to refer to Figure 4 As shown, the first reverse drive relay KB1, the second reverse drive relay KB2, the third reverse drive relay KB3 and the fourth reverse drive relay KB4 are connected in parallel between an unlocking switch KP and the negative pole of the input voltage end. The other end of the unlocking switch KP is connected to the positive pole of the input voltage end.

[0082] Further, when the control switch 4 sends out the unlocking signal, the unlocking switch KP is closed and the unlocking signal is transmitted to the first reverse drive relay KB1, the second reverse drive relay KB2, the third reverse drive relay KB3 and the fourth reverse drive relay KB4. After receiving the locking signal, the normally open contact KBO1 of the first reverse drive relay KB1 is closed, driving the first motor M1 to rotate reversely. The normally open contact KBO2 of the second reverse drive relay KB2 is closed, driving the second motor M2 to rotate reversely. The normally open contact KBO3 of the third reverse drive relay KB3 is closed, driving the third motor M3 to rotate reversely. The normally open contact KBO4 of the fourth reverse drive relay KB4 is closed, driving the fourth motor M4 to rotate reversely.

[0083] In a more preferred embodiment, the control module 1 comprises a logic control assembly, which comprises:

[0084] N ground-touch feedback relays KN, each of which is connected to a normally open contact NO of a limit sensor switch LS;

[0085] Specifically, as Figure 5As shown, the ground-touch feedback relay KN includes a first ground-touch feedback relay KN1, a second ground-touch feedback relay KN2, a third ground-touch feedback relay KN3, and a fourth ground-touch feedback relay KN4; the first ground-touch feedback relay KN1 is connected to the normally open pin NO1 of the first limit sensor switch LS1 to form a first ground-touch feedback branch, the second ground-touch feedback relay KN2 is connected to the normally open pin NO2 of the second limit sensor switch LS2 to form a second ground-touch feedback branch, the third ground-touch feedback relay KN3 is connected to the normally open pin NO3 of the third limit sensor switch LS3 to form a first ground-touch feedback branch, and the fourth ground-touch feedback relay KN4 is connected to the normally open pin NO4 of the fourth limit sensor switch LS4 to form a fourth ground-touch feedback branch; the first ground-touch feedback branch, the second ground-touch feedback branch, the third ground-touch feedback branch, and the fourth ground-touch feedback branch are connected in parallel.

[0086] Further, when the first motorized foot 21 touches the ground, the normally closed contact NC1 of the first limit sensor switch LS1 is disconnected, the normally open contact NO1 of the first limit sensor switch LS1 is closed, a ground-touch logic signal is transmitted to the first ground-touch feedback relay KN1 through the first ground-touch feedback branch, and after receiving the ground-touch logic signal, the normally open contact KNO1 of the first ground-touch feedback relay KN1 is closed.

[0087] When the second motorized foot 22 touches the ground, the normally closed contact NC2 of the second limit sensor switch LS2 is disconnected, the normally open contact NO2 of the second limit sensor switch LS2 is closed, a ground-touch logic signal is transmitted to the second ground-touch feedback relay KN2 through the second ground-touch feedback branch, and after receiving the ground-touch logic signal, the normally open contact KNO2 of the second ground-touch feedback relay KN2 is closed.

[0088] When the third motorized foot 23 touches the ground, the normally closed contact NC3 of the third limit sensor switch LS3 is disconnected, the normally open contact NO3 of the third limit sensor switch LS3 is closed, a ground-touch logic signal is transmitted to the third ground-touch feedback relay KN3 through the third ground-touch feedback branch, and after receiving the ground-touch logic signal, the normally open contact KNO3 of the third ground-touch feedback relay KN3 is closed.

[0089] When the fourth motorized foot 24 touches the ground, the normally closed contact NC4 of the fourth limit sensor switch LS4 is disconnected, the normally open contact NO4 of the fourth limit sensor switch LS4 is closed, a ground-touch logic signal is transmitted to the fourth ground-touch feedback relay KN4 through the fourth ground-touch feedback branch, and after receiving the ground-touch logic signal, the normally open contact KNO4 of the fourth ground-touch feedback relay KN4 is closed.

[0090] Preferably, when the ground is uneven, the first motorized foot 21, the second motorized foot 22, the third motorized foot 23, and the fourth motorized foot 24 extend by different distances, thereby realizing the automatic leveling function of the system.

[0091] In the embodiment, the logic control component further comprises:

[0092] N ground feedback relays KN, the normally open contacts KNO of the N ground feedback relays KN are connected in sequence to form a power-on switch part KPS;

[0093] a control relay KC and a time relay KT, the control relay KC and the time relay KT are connected in parallel to the power-on switch part KPS.

[0094] Specifically, as shown in Figure 6 the power-on switch part KPS comprises the normally open contact KNO1 of the first ground feedback relay KN1, the normally open contact KNO2 of the second ground feedback relay KN2, the normally open contact KNO3 of the third ground feedback relay KN3, and the normally open contact KNO4 of the fourth ground feedback relay KN4 connected in sequence;

[0095] Further, when the normally open contact KNO1 of the first ground feedback relay KN1, the normally open contact KNO2 of the second ground feedback relay KN2, the normally open contact KNO3 of the third ground feedback relay KN3, and the normally open contact KNO4 of the fourth ground feedback relay KN4 are closed at the same time, the power-on switch part KPS is turned on, and an upper power logic signal is transmitted to the control relay KC and the time relay KT, the normally open contact KCO of the control relay KC is closed after the control relay KC receives the upper power logic signal, and the normally closed contact KTC of the time relay KT is closed within a preset delay time after the time relay KT receives the upper power logic signal.

[0096] In a preferred embodiment, the normally open contact KCO of the control relay KC is connected to the normally closed contact KTC of the time relay KT to form a time delay control part LC.

[0097] In a preferred embodiment, the logic control component further comprises:

[0098] N leveling relays KM, the N leveling relays KM are connected in parallel to the time delay control part LC, and the normally open contact KMO of each leveling relay KM is connected to a forward driving relay KR.

[0099] Specifically, as shown in Figure 7 the leveling relay KM comprises the first leveling relay KM1, the second leveling relay KM2, the third leveling relay KM3, and the fourth leveling relay KM4 connected in parallel; preferably, please continue to refer to Figure 3As shown, the normally open contact KMO1 of the first leveling relay KM1 is connected with the first forward driving relay KR1 to form a first leveling starting branch, the normally open contact KMO2 of the second leveling relay KM2 is connected with the second forward driving relay KR2 to form a second leveling starting branch, the normally open contact KMO3 of the third leveling relay KM3 is connected with the third forward driving relay KR3 to form a third leveling starting branch, and the normally open contact KMO4 of the fourth leveling relay KM4 is connected with the fourth forward driving relay KR4 to form a fourth leveling starting branch; the first leveling starting branch, the second leveling starting branch, the third leveling starting branch and the fourth leveling starting branch are connected in parallel between the positive input voltage terminal and the negative input voltage terminal.

[0100] Further, the normally open contact KMO1 of the first leveling relay KM1 is connected in parallel across the normally closed contact NC1 of the first limit sensor switch LS1, and when the normally closed contact NC1 of the first limit sensor switch LS1 is open and the normally open contact KMO1 of the first leveling relay KM1 is closed, a lock-to-ground logic signal is transmitted to the first forward driving relay KR1 through the first leveling starting branch; the normally open contact KMO2 of the second leveling relay KM2 is connected in parallel across the normally closed contact NC2 of the second limit sensor switch LS2, and when the normally closed contact NC2 of the second limit sensor switch LS2 is open and the normally open contact KMO2 of the second leveling relay KM2 is closed, the lock-to-ground logic signal is transmitted to the second forward driving relay KR2 through the second leveling starting branch; the normally open contact KMO3 of the third leveling relay KM3 is connected in parallel across the normally closed contact NC3 of the third limit sensor switch LS3, and when the normally closed contact NC3 of the third limit sensor switch LS3 is open and the normally open contact KMO3 of the third leveling relay KM3 is closed, the lock-to-ground logic signal is transmitted to the third forward driving relay KR3 through the third leveling starting branch; the normally open contact KMO4 of the fourth leveling relay KM4 is connected in parallel across the normally closed contact NC4 of the fourth limit sensor switch LS4, and when the normally closed contact NC4 of the fourth limit sensor switch LS4 is open and the normally open contact KMO4 of the fourth leveling relay KM4 is closed, the lock-to-ground logic signal is transmitted to the fourth forward driving relay KR4 through the fourth leveling starting branch.

[0101] Further, after receiving the lock-to-ground logic signal, the normally open contact KRO1 of the first forward driving relay KR1, the normally open contact KRO2 of the second forward driving relay KR2, the normally open contact KRO3 of the third forward driving relay KR3 and the normally open contact KRO4 of the fourth forward driving relay KR4 are closed at the same time to drive all the motors M to rotate forward at the same time.

[0102] Preferably, the present balancing support system has an automatic leveling function, which can reduce the technical requirements and initial state and processing technology requirements for the electrically driven foot.

[0103] In a preferred embodiment, further comprising:

[0104] a power supply 5 connected to the power interface of the control module 1;

[0105] a status indicator 6 connected to the status signal output of the control module 1, for displaying the working status of the balance support system.

[0106] It should be noted that the status indicator 6 is used to display the status of the balance support system, in the locked state or the unlocked state, which needs to correspond to the working mode of the state control device of the balance support system, otherwise it will affect the accuracy and reliability of the device.

[0107] A balance support method for medical devices, as shown in Figure 8 The balance support system applied to any one of the above embodiments comprises:

[0108] If the trigger signal received by the control module 1 is a locking signal, the following steps are taken to lock the support platform 3:

[0109] Step S1: Each forward drive relay KR drives a connected motor M to rotate forward, at the same time driving N electrically driven foot 2 to extend, when the electrically driven foot 2 contacts the ground, the normally closed contact NC of the limit sensor switch LS is disconnected, cutting off the power supply of the motor M, stopping the extension of the electrically driven foot 2, at the same time the normally open contact NO of the limit relay switch LS is closed;

[0110] Step S2: When all electrically driven feet 2 contact the ground and stop extending, the control module 1 controls N motors M to rotate forward at the same time, driving the support platform 3 to rise;

[0111] Step S3: When the time of the continuous rising of the support platform 3 reaches a pre-set delay time, the control module 1 controls all motors M to stop rotating, completing the locking work of the support platform 3;

[0112] If the trigger signal received by the control module 1 is an unlocking signal, N reverse drive relays KB drive each corresponding motor M to rotate reversely, driving the electrically driven foot 2 to retract, completing the unlocking work of the support platform 3.

[0113] In a preferred embodiment, as shown in Figure 9 Step S2 comprises:

[0114] Step S21: After the normally open contact NO of each limit relay switch LS is closed, a touch ground feedback relay KN connected receives a touch ground logic signal, controlling the normally open contact KNO of the touch ground feedback relay KN to close;

[0115] Step S22, when the normally open contacts KNO of the N ground-touch feedback relays KN are all closed, an on-power switch part KPS is turned on, a control relay KC and a time relay KT simultaneously receive an on-power logic signal, the normally open contact KCO of the control relay KC is closed, and the normally closed contact KTC of the time relay KT is closed within a delay time;

[0116] Step S23, a time delay control part LC is turned on within the delay time, and an adjusting logic signal is transmitted to the N adjusting relays KM simultaneously;

[0117] Step S24, the normally open contacts KMO of all the adjusting relays KM are closed simultaneously, and a ground-lock logic signal is transmitted to each forward driving relay KR;

[0118] Step S25, the normally open contacts KRO of all the forward driving relays KR are closed, and the motor M is driven to rotate forward within the delay time.

[0119] Specifically, the bottom of the support platform is provided with universal wheels for movement, the motor M continues to rotate forward, the entire platform is lifted, the universal wheels are away from the ground, and the four ground anchors support. When the running time of the motor M reaches the preset time, the normally closed contact KTC of the time relay KT is disconnected, and the motor stops working.

[0120] In a preferred embodiment, as shown in Figure 10 Step S3 includes:

[0121] Step S31, after the duration of the rotation of the motor reaches the delay time, the normally closed contact KTC of the time relay KT is disconnected;

[0122] Step S32, the normally open contacts KMO of the N adjusting relays KM are simultaneously disconnected;

[0123] Step S33, the normally open contacts KRO of the N forward driving relays KR are disconnected, the power supply of the motor is cut off, and the motor M simultaneously stops rotating.

[0124] At this time, the support platform 3 is supported by the motorized ground anchors 2 and is converted to be supported by the universal wheels, so that the support platform is in a movable state.

[0125] In summary, the application provides a simple balanced support system with an automatic adjusting function and a control method thereof. The balanced support system controls the forward rotation or reverse rotation of the motor M according to an input trigger signal. Preferably, the motor M of the embodiment is a direct current motor M, automatic adjusting and smooth movement of the support platform are achieved by acquiring the state of the limit sensor switch LS installed in the motorized ground anchor 2, and the state of the support platform 3 is presented to the user in the form of an indicator light.

[0126] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. Those skilled in the art should be able to understand that any equivalent substitutions and obvious changes made according to the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A balanced support system for a medical device, characterized by, The application relates to a balance supporting system, which comprises the following parts: a supporting platform (3); N electrically-driven ground pegs (2) connected to the supporting platform (3), wherein each of the electrically-driven ground pegs (2) is provided with a motor (M), the electrically-driven ground pegs (2) control the ascending / descending of the supporting platform (3) under the rotating action of the motors (M), and each of the electrically-driven ground pegs (2) is further provided with a limit sensor switch (LS), the limit sensor switch (LS) controls the operation of the motor (M) according to the contact condition between the electrically-driven ground peg (2) and the ground; a control module (1) connected to the electrically-driven ground pegs (2), wherein the control module (1) comprises a motor driving module, the motor driving module is connected to the motors (M), and the control module (1) drives the motors (M) to rotate according to the received trigger signal; wherein N is a positive integer greater than 3; the motor driving module further comprises: N forward driving relays (KR), each of the forward driving relays (KR) is connected to one of the motors (M) and is used for driving the motor (M) to rotate forwardly; N reverse driving relays (KB), each of the reverse driving relays (KB) is connected to one of the motors (M) and is used for driving the motor (M) to rotate reversely; the control module (1) comprises a logic control component, and the logic control component comprises: N ground-touching feedback relays (KN), each of the ground-touching feedback relays (KN) is connected to the normally open contact (NO) of one of the limit sensor switches (LS); the normally open contacts (KNO) of all the ground-touching feedback relays (KN) are sequentially connected to form an upper power switch part (KPS); a control relay (KC) and a time relay (KT), the control relay (KC) and the time relay (KT) are connected to the upper power switch part (KPS) in parallel; the normally open contact (KCO) of the control relay (KC) is connected to the normally closed contact (KTC) of the time relay (KT) to form a time delay control part (LC); N leveling relays (KM), the leveling relays (KM) are connected to the time delay control part (LC) in parallel, and the normally open contact (KMO) of each of the leveling relays (KM) is connected to one of the forward driving relays (KR); when all the electrically-driven ground pegs (2) contact the ground and stop the elongation movement, the control module (1) controls all the motors (M) to rotate forwardly at the same time, thereby driving the supporting platform (3) to ascend. the application further comprises a control switch (4) connected to the signal input end of the control module (1), which transmits the trigger signal to the control module (1), wherein the trigger signal comprises a ground locking signal and an unlocking signal; the control module (1) drives the motors (M) to rotate forwardly according to the received ground locking signal; 2. The balanced support system of claim 1, wherein, the control module (1) drives the motors (M) to rotate reversely according to the received unlocking signal. the application further comprises: a power supply (5) connected to the power supply interface of the control module (1); 3. The balanced support system of claim 1, wherein, a state indicating lamp (6) connected to the state signal output end of the control module (1) and used for displaying the working state of the balance supporting system. ​ ​ 4. A method for balancing support of a medical device, applied to the balancing support system according to any one of claims 1 to 3, characterized by, The application relates to a control method of a support platform (3) which is driven by a plurality of electrically-driven ground pegs (2) and is connected with a plurality of electric motors (M) through a plurality of driving relays (KR) and a plurality of reverse driving relays (KB), and the support platform (3) is controlled by a control module (1) and a plurality of control relays (KC) and a plurality of time relays (KT) and a plurality of leveling relays (KM) and a plurality of limit sensor switches (LS) and a plurality of ground contact feedback relays (KN) and a plurality of time delay control units (LC), and the control method comprises the following steps. If the trigger signal received by the control module (1) is a locking signal, the support platform (3) is locked by the following steps. Step S1: the forward driving relay (KR) drives the connected electric motor (M) to rotate forward, and drives the electrically-driven ground peg (2) to extend, when the electrically-driven ground peg (2) contacts the ground, the normally closed contact (NC) of the limit sensor switch (LS) is disconnected, the power supply of the electric motor (M) is cut off, the extension of the electrically-driven ground peg (2) is stopped, and the normally open contact (NO) of the limit sensor switch (LS) is closed. Step S2: when all the electrically-driven ground pegs (2) contact the ground and stop extending, the control module (1) controls all the electric motors (M) to rotate forward at the same time, and drives the support platform (3) to rise. Step S3: when the rising time of the support platform (3) reaches a preset delay time, the control module (1) controls all the electric motors (M) to stop rotating, and the locking of the support platform (3) is completed. If the trigger signal received by the control module (1) is an unlocking signal, the corresponding electric motor (M) is driven by the reverse driving relay (KB) to rotate reversely, the electrically-driven ground peg (2) is driven to contract, and the unlocking of the support platform (3) is completed.

5. The balanced support method of claim 4, wherein, Step S2 comprises the following steps. Step S21: after the normally open contact (NO) of the limit sensor switch (LS) is closed, the ground contact feedback relay (KN) connected with the limit sensor switch (LS) receives a ground contact logic signal, and the normally open contact (KNO) of the ground contact feedback relay (KN) is closed. Step S22: when the normally open contacts (KNO) of all the ground contact feedback relays (KN) are closed, the power-on switch unit (KPS) is turned on, the control relay (KC) and the time relay (KT) receive a power-on logic signal at the same time, the normally open contact (KCO) of the control relay (KC) is closed, and the normally closed contact (KTC) of the time relay (KT) is closed within the delay time. Step S23: the time delay control unit (LC) is turned on within the delay time, and transmits a leveling logic signal to the leveling relay (KM). Step S24: the normally open contacts (KMO) of all the leveling relays (KM) are closed at the same time, and a locking logic signal is transmitted to the forward driving relay (KR). Step S25: the normally open contacts (KRO) of all the forward driving relays (KR) are closed, and the electric motor (M) is driven to rotate forward within the delay time.

6. The balanced support method of claim 5, wherein, Step S3 comprises the following steps. Step S31: after the rotating time of the electric motor reaches the delay time, the normally closed contact (KTC) of the time relay (KT) is disconnected. Step S32: the normally open contacts (KMO) of all the leveling relays (KM) are disconnected at the same time. Step S33: the normally open contacts (KRO) of all the forward driving relays (KR) are disconnected, the power supply of the electric motor is cut off, and the electric motor (M) stops rotating at the same time.

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