A movable lift and a lifting control method

Abstract

The present invention discloses a movable lift and a lift control method, which includes a support column body. A connecting block is arranged on the left side of the support column body. The outer side of the connecting block is connected with a bottom leg for supporting. Each end of the bottom leg is provided with a front wheel. A rear wheel is arranged on the lower right side of the support column body. The rear wheel is connected with the output end of a lifting telescopic rod for adjusting its height. The present invention can enable each column of the movable lift to have the same control program and the same specifications, and can be combined into a set for use through simple settings. The number of lifting columns is not limited, as long as they have the same ID, they can be lifted and lowered synchronously. Moreover, multiple sets of such devices can work simultaneously in the same enterprise. And each lifting column is equipped with its own walking drive, enabling the lift to move by itself under the control of an operator, reducing the working intensity of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting of electric mobile vehicles, and particularly to a movable lift and a lift control method. Background Art

[0002] With the continuous development of the automobile society and the increasing number of automobiles, automobile maintenance enterprises are increasingly emphasizing maintenance efficiency. The original maintenance method for heavy vehicles was to use a repair trench. When the vehicle needed chassis maintenance, it had to be driven onto the trench for repair. However, ordinary lifts have limited lifting weight or a fixed working mode, which brings inconvenience to maintenance enterprises. At present, the movable lifts on the market often use a fixed number of columns and a synchronous lifting method with one control column and several controlled columns. The number of columns cannot be changed, and enterprises need to prepare multiple models of lifts to cope with different occasions. Moreover, the existing lifts all need to be pushed manually. In enterprises where lifts are used frequently, the physical consumption of lift operators is huge, which limits the use of movable lifts.

[0003] Therefore, we propose a movable lift and a lift control method. Summary of the Invention

[0004] The purpose of the present invention is to provide a movable lift and a lift control method to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A movable lift includes a support column body. A connection block is arranged on the left side of the support column body. The outer side of the connection block is connected to a bottom leg for supporting. A front wheel is provided at each end of the bottom leg. A rear wheel is provided at the lower right side of the support column body. The rear wheel is connected to the output end of a lifting telescopic rod for adjusting its height. The front wheel and the rear wheel construct a traveling mechanism. An elevating execution device for driving a lifting arm to lift is arranged on the support column body and is connected to the connection block. One elevating execution device is a lifting column. An outer shell box for covering a lifting driving member is arranged on the right side of the support column body. The lifting driving member and the traveling mechanism are electrically connected to a display device arranged on the outer shell box. An operation terminal convenient for manual operation is arranged on the outer side of the support column body near the rear wheel.

[0007] As a further scheme of the present invention: The end of the operation terminal corresponds to the position of the display device.

[0008] As a still further scheme of the present invention: The display device is provided with a wireless communication module for interacting with the terminal, so as to facilitate communication with the operator. The display device is electrically connected to the output end of a processor.

[0009] As a further solution of the present invention: a height sensor for detecting the height of the lifting arm is provided at the input end of the processor, and the processor is connected to the lifting execution device through a lifting control circuit.

[0010] As a further solution of the present invention: the end of the fixed shaft of the front wheel or the rear wheel is connected to the output end of the wheel drive motor, the wheel drive motor is electrically connected to the motor driver, and the motor driver is electrically connected to the operation terminal and the walking remote control.

[0011] A lifting control method for a movable lift. Each lifting column has the same control software, hardware circuit, and actuator. By setting three parameters: group ID, total number of columns, and group serial number, the lifting columns are divided into several groups, and each group can be used as a set of equipment. They have the same group ID, total number of columns, and different group serial numbers representing each other.

[0012] Each group of lifting columns has a different communication channel.

[0013] When each group is powered on, the first group serves as the coordinator of the zigbee module. The zigbee modules of the lifting columns with the same group ID will be set to the same zigbee ID. The modules with the same zigbee ID will automatically form a network. After power-on, the first column sends a network formation broadcast. After other columns receive the network formation broadcast, they will reply to the first column with the serial number and MAC address of this column. After the first column receives the column numbers and MAC addresses of all lifting columns, it forms a data transfer sequence. After notifying each lifting column of the next data transfer address of each lifting column, the network formation is completed and the actual working state is entered.

[0014] During actual control work, the communication adopts a circular transfer method. A data format of a certain length is set, and each lifting column occupies a block of interval, which is managed by each column itself. The first column initiates communication, places the height, button information, control status, etc. of this column in the area of this column in the data, and transfers it to the next column through the transfer sequence formed during network formation. The lifting column that receives the information will place the information of this column in the corresponding position of the data again and transfer it downward until the last lifting column transfers the information back to the first column. The first column starts this process again. Through such a circular transfer, each column can obtain all the status information of other columns in this group of lifting columns.

[0015] According to the button information of each column, the first column has the decision-making power to determine whether to perform an ascending, descending, or locking operation. When performing ascending, descending, or locking, each column independently controls the lifting speed of this column according to the information of other columns in the data to match the synchronization during the entire operation process.

[0016] As a further solution of the present invention: the number of the lifting columns is not less than four.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention enables each column of the mobile lift to have the same control program and the same specifications, and can be combined into a set for use through simple settings. There is no limit to the number of lifting columns, as long as they have the same ID, they can be lifted and lowered synchronously, and multiple sets of such devices can work simultaneously in the same enterprise; moreover, each lifting column is equipped with its own walking drive, enabling the lift to move automatically under the control of the operator, reducing the working intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the walking device of the present invention.

[0019] Figure 2 It is a block diagram of the lifting control structure of the present invention.

[0020] Figure 3 It is a block diagram of the walking control structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the wireless communication principle of the present invention.

[0022] Figure 5 It is a schematic diagram of the processor of the present invention.

[0023] Wherein: support column body 1, outer shell box 2, display device 3, operation terminal 4, lifting telescopic rod 5, rear wheel 6, bottom leg 9, front wheel 10. DETAILED DESCRIPTION OF THE INVENTION

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , in an embodiment of the present invention, a movable lift includes a support column 1. A connection block is provided on the left side of the support column 1. The outer side of the connection block is connected to a bottom leg 9 that plays a supporting role. Each end of the bottom leg 9 is provided with a front wheel 10. A rear wheel 6 is provided on the lower right side of the support column 1. The rear wheel 6 is connected to the output end of a lifting telescopic rod 5 for adjusting its height. The front wheel 10 and the rear wheel 6 constitute a traveling mechanism. An elevating execution device for driving the lifting arm to lift is provided on the support column 1 and is connected to the connection block. An elevating execution device is a lifting column. An outer shell box 2 for covering the lifting driving member is provided on the right side of the support column 1. The lifting driving member and the traveling mechanism are electrically connected to a display device 3 provided on the outer shell box 2. An operation terminal 4 convenient for hand operation is provided on the outer side of the support column 1 near the rear wheel 6. The end of the operation terminal 4 corresponds to the position of the display device 3;

[0028] The display device 3 is provided with a wireless communication module for interacting with the terminal, so as to facilitate communication with the operator and improve work efficiency. The display device 3 is electrically connected to the output end of a processor. The input end of the processor is provided with a height sensor for detecting the height of the lifting arm. The processor is connected to the elevating execution device through an elevating control circuit;

[0029] The end of the fixed shaft of the front wheel 10 or the rear wheel 6 is connected to the output end of a wheel drive motor. The wheel drive motor is electrically connected to a motor driver. The motor driver is electrically connected to the operation terminal 4 and a traveling remote control.

[0030] Each lifting column has the same control software, hardware circuit, and actuator. By setting three parameters: group ID, total number of columns, and group serial number, the lifting columns are divided into several groups, and each group can be used as a set of equipment. For example, 4, 6, or more lifting columns can have the same group ID, total number of columns, and different group serial numbers representing each of them.

[0031] Each group of lifting columns has a different communication channel to improve the efficiency of data exchange.

[0032] When each group is powered on, the first group acts as the coordinator of the zigbee module. The zigbee modules of the lifting columns with the same group ID will be set to the same zigbee ID, and the modules with the same zigbee ID will automatically form a network. After power-on, the first column sends a network formation broadcast. After other columns receive the network formation broadcast, they will reply to the first column with the serial number and MAC address of this column. After the first column receives the column numbers and MAC addresses of all lifting columns, it forms the data transfer order. After notifying each lifting column of the next data transfer address of each lifting column, the network formation is completed and the actual working state is entered.

[0033] During actual control work, communication adopts a circular transfer method. A data format of a certain length is set, and each lifting column occupies a block of the interval, which is managed by each column itself. The first column initiates communication, places the height, button information, control status, etc. of this column in the area of this column in the data, and transfers it to the next column through the transfer order formed during network formation. The lifting column that receives the information will place the information of this column in the corresponding position of the data again and transfer it downward until the last lifting column transfers the information back to the first column. The first column starts this process again. Through such a circular transfer, each column can obtain all the status information of other columns in this group of lifting columns.

[0034] According to the button information of each column, the first column has the decision-making power to determine whether to perform an ascending, descending, or locking operation. When performing ascending, descending, or locking, each column independently controls the lifting speed of this column according to the information of other columns in the data to match the synchronization during the entire operation process.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting control method for a movable lift. The movable lift includes a support column (1). The left side of the support column (1) is connected through a connecting block to a bottom leg (9) for supporting. Each end of the bottom leg (9) is provided with a front wheel (10). A rear wheel (6) is provided on the lower right side of the support column (1). The rear wheel (6) is connected to the output end of a lifting telescopic rod (5) for adjusting its height. The front wheels (10) and the rear wheel (6) constitute a traveling mechanism. An elevating execution device for driving a lifting arm to lift is provided on the support column (1) and is connected to the connecting block. One elevating execution device is a lifting column. An outer shell box (2) for covering a lifting driving member is provided on the right side of the support column (1). The lifting driving member and the traveling mechanism are electrically connected to a display device (3) provided on the outer shell box (2). An operation terminal (4) convenient for hand operation is provided on the outer side of the support column (1) near the rear wheel (6). It is characterized in that, Each lifting column has the same control software, hardware circuit and actuator. By setting three parameters: group ID, total number of columns, and group sequence number, the lifting columns are divided into several groups, and each group is used as a set of equipment. They have the same group ID, total number of columns, and different group sequence numbers representing each other; Each group of lifting columns has a different communication channel; When each group is powered on, the first column serves as the coordinator of the zigbee module. The zigbee modules of the lifting columns with the same group ID will be set to the same zigbee ID. The modules with the same zigbee ID will automatically form a network. After power-on, the first column sends a network formation broadcast. After other lifting columns receive the network formation broadcast, they will reply to the first column with the serial number and MAC address of this lifting column. After the first column receives the column numbers and MAC addresses of all lifting columns, it forms a data transfer sequence. After notifying each lifting column of the next data transfer address of each lifting column, the network formation is completed and the actual working state is entered; During actual control work, communication adopts a circular transfer method, setting a fixed-length data format. Each lifting column occupies a section, which is managed by each lifting column itself. The first column initiates communication, places the height, button information, and control status of this lifting column in the area of this lifting column in the data, and transfers it to the next lifting column through the transfer sequence formed during network formation. The lifting column that receives the information places the information of this lifting column in the corresponding position of the data again and transfers it downward until the last lifting column transfers the information back to the first column. The first column starts this process again. Through such a cyclic transfer, each lifting column can obtain all the status information of other lifting columns in this group of lifting columns; According to the button information of each lifting column, the first column has the decision-making power to determine whether to perform an ascending, descending, or locking operation. When performing ascending, descending, or locking, each lifting column independently controls the lifting speed of this lifting column according to the information of other lifting columns in the data to match the synchronization during the entire operation process.

2. The lifting control method of a movable lift according to claim 1, characterized in that, The display device (3) is a touch display screen.

3. The lifting control method of a movable lift according to claim 1, characterized in that, The end of the operation terminal (4) corresponds to the position of the display device (3).

4. The lifting control method of a movable lift according to claim 1, characterized in that, The display device (3) is provided with a wireless communication module for interacting with the terminal, so as to facilitate communication with the operator. The display device (3) is electrically connected to the output end of the processor.

5. The lifting control method of a movable lift according to claim 4, characterized in that, The input end of the processor is provided with a height sensor for detecting the height of the lifting arm. The processor is connected to the lifting execution device through a lifting control circuit.

6. The lifting control method of a movable lift according to claim 1, characterized in that, The end of the fixed shaft of the front wheel (10) or the rear wheel (6) is connected to the output end of the wheel drive motor. The wheel drive motor is electrically connected to the motor driver, and the motor driver is electrically connected to the operation terminal (4) and the walking remote control.

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