CN107942741A - A kind of hand controller and lifting platform for controlling linear actuators - Google Patents

Abstract

The invention discloses a kind of hand controller and lifting platform for controlling linear actuators, it is related to linear drive technology field, including mounting base, the hand controller further includes rotational shell, the rotational shell rotational installation is in the mounting base, control unit and detecting element are equipped with the hand controller, the detecting element is used for the rotation position change for detecting the rotational shell, and signal is passed to by peripheral control unit by described control unit, peripheral control unit drives the linear actuators to stretch according to the signal of described control unit.The present invention can save operator space, and compact structure is beautiful, and complete appearance degree is high, and avoids the situation of false triggering.

Description

Hand controller and lifting table for controlling linear actuator

【Technical field】

The invention relates to the technical field of linear drives, in particular to a hand controller and a lifting platform for controlling a linear actuator.

【Background technique】

Electric lifting tables are often used in residential, office and medical fields, such as height-adjustable desks, kitchen counters, office desks and hospital beds. However, in the prior art, manipulators mostly use mechanical switches, physical buttons, paddles, and touch to input commands such as lifting and lowering. Operation modes include long press to lift, tap to lift, one key to lift, etc. Mechanical switches and physical buttons have high requirements on the consistency of the button force, and the mechanical and physical buttons destroy the integrity and aesthetics of the operator's surface; in addition, the gaps between the buttons are easy to accumulate dust and cause the buttons to be blocked. However, most of the touch methods are capacitive touch buttons, which may cause false triggering, which causes inconvenience to use.

【Content of invention】

In order to solve the above problems, the present invention provides a new type of hand controller, which can save the space of the manipulator, has a compact and beautiful structure, high appearance integrity, and avoids false triggering.

In order to achieve the above object, the present invention adopts following technical scheme:

A hand controller for controlling a linear actuator, comprising a mounting seat, the hand controller also includes a rotating shell for manual rotation operation, the rotating shell is rotatably mounted on the mounting seat, and the hand controller A control unit and a detection element electrically connected to the control unit are provided, the detection element is used to detect the change in the rotational position of the rotating housing, and the signal is transmitted to the external controller through the control unit, and the external controller according to The signal from the control unit drives the linear actuator to expand and contract.

Further, the rotating housing has an initial position and an operating position, and the operating position includes a first operating position and a second operating position, and the rotating housing rotates from the initial position to the first operating position in the same direction as the rotating housing from The direction of rotation from the initial position to the second operating position is opposite, when rotating from the initial position to the first operating position, the linear actuator is in an extended state, and rotating from the initial position to the second operating position , the linear actuator is in a retracted state.

Furthermore, when the rotating housing returns to the initial position from the first operating position, the linear actuator stops extending, and when the rotating housing returns to the initial position from the second operating position, The linear actuator stops shrinking; or the linear actuator stops shrinking when the rotary shell returns to the initial position from the first operating position, and the rotary shell returns to the initial position from the second operating position In the initial position, the linear actuator stops extending.

Preferably, the detection element is a Hall effect sensor, and a magnet is arranged in the hand controller. A changing magnetic field is generated on the surface of the magnet, the Hall effect sensor is within the magnetic field range of the magnet, one of the magnet and the Hall effect sensor is installed on the inner wall of the rotating housing, and the other is fixed on the the mount.

Preferably, the detection element is one of a rotation angle sensor, a rotary encoder, a variable resistor, and a light detector.

Preferably, an elastic element is provided on the mounting base, a push block is provided on the inner wall of the rotating housing, the rotating housing has an initial position and an operating position, and the rotating housing rotates from the initial position to the operating position, The pushing block pushes the elastic element to undergo elastic deformation, and the restoring force of the elastic element pushes the rotating housing to return from the operating position to the initial position.

Preferably, the elastic element is a torsion spring, the torsion spring includes a helical body and a first torsion arm and a second torsion arm extending from the helical body, a mounting post is provided in the center of the mounting seat, and the push The block includes a first push block and a second push block, the mounting column is inserted into the screw body, the first torsion arm abuts against the first push block, and the second torsion arm abuts against the first torsion arm Two push blocks, the rotating housing rotates from the initial position to the operating position, and one of the first torsion arm and the second torsion arm is pushed by the push block to undergo elastic deformation.

Preferably, the elastic element includes a first spring and a second spring, a first installation slot is provided on the mounting seat, the first spring and the second spring are installed in the first installation slot, the The first spring and the second spring abut against the push block at the same time, the rotating housing rotates from the initial position to the operating position, and one of the first spring and the second spring is pushed by the push block Elastic deformation.

Preferably, the hand controller further includes a display unit, the display unit is electrically connected to the control unit, the external controller transmits the height information of the linear actuator to the control unit, and the control unit transmits the height information of the linear actuator to the control unit. Altitude information is displayed through the display unit.

In addition, the present invention also discloses a lifting platform, which includes a platform, an external controller and a linear actuator, and the lifting platform also includes the hand controller described in any one of the above, and the hand controller is connected to the The external controller is electrically connected or wirelessly connected, the external controller is electrically connected with the linear actuator, the linear actuator is connected with the table, and the hand controller rotates and transmits a signal to The external controller, the external controller drives the linear actuator according to the signal of the hand controller, and the linear actuator drives the movement of the platen.

After adopting the technical scheme, the present invention has the following advantages:

Because the side wall of the hand controller is rotated for adjustment operation, the integrity and aesthetics of the controller surface are maintained. The hand controller is small and beautiful, saving space, and avoiding misoperation caused by the use of capacitive triggering. At the same time, the mechanical keys are canceled, thus avoiding the drawbacks of easy dust accumulation in the gaps of the keys. The hand controller adopts magnetic induction control, which responds quickly and accurately; the operation has a display screen, which can display the height of the linear actuator in real time, which is convenient for users to use. In addition, the hand controller has a memory function, which can memorize different heights, which is convenient for users to quickly and accurately The preset position is reached, which further facilitates the user's use.

The beneficial effect that the lifting platform disclosed in the present invention can achieve is the same as that of the hand controller described above, and the derivation process of the two is similar, so it will not be repeated here.

These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The best implementation mode or means of the present invention will be shown in detail with reference to the accompanying drawings, but it is not intended to limit the technical solution of the present invention. In addition, there are multiple features, elements, and components appearing in each of the following texts and drawings, and are marked with different symbols or numbers for convenience, but all represent parts with the same or similar structures or functions.

【Description of drawings】

The present invention will be further described below in conjunction with accompanying drawing:

Figure 1 is an exploded view of the hand controller in Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of the hand controller in the initial position in Embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of the hand controller in the operating position in Embodiment 1 of the present invention;

FIG. 4 is an operation flowchart of Embodiment 1 of the present invention;

Fig. 5 is an exploded view of the hand controller in Embodiment 2 of the present invention;

Fig. 6 is a schematic diagram of the hand controller in the initial position in Embodiment 2 of the present invention;

Fig. 7 is a schematic diagram of the hand controller in the operating position in Embodiment 2 of the present invention;

Fig. 8 is an exploded view of the hand controller in Embodiment 3 of the present invention;

9 is an overall schematic diagram of Embodiment 5 of the present invention;

In the attached picture:

1-mounting seat, 2-rotary housing, 3-magnet, 4-elastic element, 5-circuit board, 6-gland, 7-control panel, 8-external controller, 9-linear actuator, 11-connection Seat, 12-installation slide rail, 13-screw hole column, 21-push block, 211-first push block, 212-second push block, 41-first spring, 42-second spring, 51-sensor, 52 -control unit, 53-monitor, 54-memory, 55-control key, Ⅰ-tableboard, Ⅱ-hand controller, Ⅲ-connection frame, Ⅳ-connection frame, Ⅴ-leg.

【Detailed ways】

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

References in this specification to "one embodiment" or "example" or "example" mean that a particular feature, structure or characteristic described in connection with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

In the description of the embodiments of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "horizontal", "vertical", "inner", "outer" etc. are based on The orientations or positional relationships shown in the drawings are only for the convenience of describing the present invention and do not require the present invention to be constructed and operated in a specific orientation, so they should not be construed as limitations on the present invention.

Embodiment one:

This embodiment provides a hand controller.

As shown in Figures 1 to 4, a hand controller includes a mount 1, a magnet 3, a sensor 51, a control unit 52, a display 53, a memory 54, a rotating housing 2, a circuit board 5, a gland 6 and a control panel 7. One side of the mounting seat 1 is provided with a connecting seat 11 for installing the hand controller at a specific position, and the other side is provided with a mounting slide rail 12. The rotating shell 2 is installed on the rotating slide rail 12, and its inner wall is in line with the rotating slide rail. The outer walls of the rail 12 cooperate to realize the rotational connection. In this embodiment, the magnet 3 is an arc-shaped magnet whose surface is treated to generate a changing magnetic field region. The magnet 3 is fixedly installed on the inner wall of the rotating shell 2, and rotates with the rotation of the rotating shell 2. The sensor 51, the control unit 52, the memory 54 and the display 53 are installed on the circuit board 5, and the sensor 51 is within the effective magnetic field range of the magnet 3. The cover 6 is arranged on the outside of the circuit board 5, the mounting seat 1 is located on one side of the rotating housing 2 and has a screw hole column 13, the circuit board 5 and the gland 6 are respectively provided with mounting holes, and the screws are screwed into the screw holes through the mounting holes The column 13 fixes the circuit board 5 and the gland 6 on the mounting base 1 . The rotating casing 2 is fitted with the gland 6 in clearance, and the inner wall of the rotating casing 2 is provided with a step, and the gland 6 cooperates with the step to prevent the rotating casing 2 from falling off. The cover 6 is provided with an escape hole for the display 53 to be exposed, and the display 53 is located at the escape hole position. The control panel 7 is pasted on the outer side of the pressing cover 6 , and the control panel 7 is provided with control keys 55 .

An elastic element 4 is provided on the mounting base 1. In this embodiment, the elastic element 4 is a torsion spring. The torsion spring includes a helical body and a first torsion arm and a second torsion arm extending from the helical body. The first torsion arm is located on the vertical The left side of the vertical axis, and the second torsion arm is located on the right side of the vertical axis. A mounting post is provided at the center of one side of the mounting base 1 facing the rotating housing 2, and the mounting post is inserted into the screw body. A push block 21 is provided on the inner wall of the rotating housing 2, and the push block 21 includes a first push block 211 and a second push block 212, which are symmetrical with respect to the vertical axis. The magnet 3 adopts an arc magnet whose radian matches the rotating housing 2 and is installed at a position facing the first push block 211 and the second push block 212 . The first torsion arm abuts against the first push block 211 , and the second torsion arm abuts against the second push block 212 . In this embodiment, in addition to the purpose of installation, the screw post 13 also functions as a spacer for the two torsion arms of the torsion spring. The rotating housing 2 has an initial position and an operating position. In the initial state, the push block 21 is located on the axis of the vertical direction of the hand controller, the first torsion arm and the second torsion arm are symmetrical with respect to the axis of the vertical direction, and the torsion spring Elastic deformation does not occur, or the deformation amounts of the first torsion arm and the second torsion arm relative to the vertical axis are equal. The operating position includes a first operating position and a second operating position. In this embodiment, the direction of turning from the initial position to the first operating position is set as clockwise, and the direction of turning from the initial position to the second operating position is counterclockwise. Clockwise, the two directions are opposite. The rotating housing 2 rotates from the initial position to the first operating position, the first push block 211 pushes the first torsion arm, the screw hole post 13 stops the second torsion arm, and elastically deforms the torsion spring, and the rotating housing 2 moves from the initial position to the second torsion arm. Rotate to the second operating position, the second push block 212 pushes the second torsion arm, and the screw hole post 13 limits the first torsion arm, so that the torsion spring elastically deforms, stops the rotation and releases the rotating housing 2, and is pushed to produce The restoring force of the elastically deformed torsion arm pushes the rotating housing 2 to automatically return to the initial position from the first operating position or the second operating position.

In the embodiment, the sensor 51 adopts a linear Hall effect sensor, the model is SS39ET, the sensor 51 is electrically connected to the control unit 52, the control unit 52 is electrically connected to the external controller 8, and the external controller 8 is connected to the linear actuator 9 Electrically connected, the hand controller 2 rotates to drive the sensor 51 to detect the magnetic induction intensity and direction at different positions of the magnet 3, and transmits the signal to the external controller 8 through the control unit 52, and the external controller 8 drives the linear motor according to the signal of the control unit 52. The actuator 9 extends or contracts. The rotary housing 2 rotates from the initial position to the first operating position, the linear actuator 9 is in an extended state, and the rotary housing 2 rotates from the initial position to the second operating position, and the linear actuator 9 is in a retracted state. Stop rotating and let go of the rotating housing 2, the rotating housing 2 automatically returns to the original position from the first operating position or the second operating position relying on the restoring force of the torsion spring, and when the rotating housing 2 returns to the initial position from the first operating position, the linear The actuator 9 stops extending, and when the rotary housing 2 returns to the initial position from the second operating position, the linear actuator 9 stops shrinking.

The display 53 is electrically connected to the control unit 52, the memory 54 is electrically connected to the control unit 52, the external controller 8 transmits the height signal of the linear actuator 9 to the control unit 52, and the control unit 52 displays the height information through the display 53, The memory 54 stores a number of operation instructions and heights corresponding to the operation instructions. When the operation instruction is triggered, the control unit 52 drives the linear actuator 9 to reach the corresponding height through the external controller 8 . The control panel 7 is provided with control keys 55 corresponding to the number of operation instructions, the control keys 55 are connected to the memory 54 , and the operation instructions are triggered by the control keys 55 .

The sensor 51 converts the magnetic induction intensity and direction at different positions of the magnet 3 into voltage signals and outputs them to the control unit 52 . At the initial position, the magnetic induction intensity is 0, and the sensor 51 outputs an intermediate voltage; at the operating position, the magnetic induction intensity and direction detected by the sensor 51 change, so the output voltage of the sensor 51 increases linearly or decreases linearly on the basis of the intermediate voltage . The increase or decrease of the output voltage of the sensor 51 can be used to distinguish between expansion and contraction, and the magnitude of the voltage increase or decrease can be used to convert the height of expansion and contraction. The control unit 52 receives the voltage signal from the sensor 51, and the control unit 52 processes and converts the voltage signal into a telescopic instruction and then transmits it to the external controller 8, and the external controller 8 sends a signal to the linear actuator 9 to control the linear actuator 9 telescoping. At the same time, the external controller 8 feeds back the height information to the display 53 for display. After letting go, the hand controller 2 automatically turns back to the initial position, the sensor 51 detects that the magnetic induction intensity returns to 0, and the stretching action stops.

Embodiment two:

As shown in Figures 5 to 7, the difference between this embodiment and Embodiment 1 is that in this embodiment, the elastic element 4 includes a first spring 41 and a second spring 42, and the mounting base 1 is provided with a first mounting groove, The first spring 41 and the second spring 42 are installed in the first installation groove, and the inner wall of the rotating housing 2 is provided with a push block 21, the first spring 41 and the second spring 42 are against the push block 21 at the same time, and the first spring 41 is located on the push block 21 on the left side, the second spring 42 is located on the right side of the push block 21 . The magnet 3 adopts a bar magnet and is fixedly mounted on the push block 21. The rotating housing 2 has an initial position and an operating position. In the initial position, neither the first spring 41 nor the second spring 42 elastically deforms in a natural state, or the deformations of the first spring 41 and the second spring 42 are equal. The operating position includes a first operating position and a second operating position. In this embodiment, the direction of turning from the initial position to the first operating position is set as clockwise, and the direction of turning from the initial position to the second operating position is counterclockwise. Clockwise, the two directions are opposite. When the rotary housing 2 rotates from the initial position to the first operating position, the second spring 42 is pushed by the push block 21 to elastically deform, the first spring 41 is in a natural state, and the linear actuator 9 is in a stretched state, moving from the initial position to the second When the operating position is rotated, the first spring 41 is pushed by the push block 21 to elastically deform, the second spring 42 is in a natural state, and the linear actuator 9 is in a contracted state. After stopping the rotation and releasing the rotating housing 2, the restoring force of the elastically deformed spring pushes the rotating housing 2 to automatically return to the initial position from the first operating position or the second operating position. When the rotating housing 2 returns to the initial position from the first operating position, the linear actuator 9 stops extending, and when the rotating housing 2 returns to the initial position from the second operating position, the linear actuator 9 stops shrinking.

Embodiment Three

As shown in Figure 8, the difference between this embodiment and Embodiment 1 is that in this embodiment, the elastic element 4 is a spring, and the mounting seat 1 is provided with a second installation groove, and the spring is installed in the second installation groove, and the push block 21 Stretch into the gap between two adjacent coils of the spring, at the initial position, the spring does not undergo elastic deformation, or take the push block 21 as the center line, and the deformations of the springs on the left and right sides of the push block 21 are equal.

Embodiment four

The difference between this embodiment and Embodiment 1 is that in this embodiment, the detection element is selected from one of a rotation angle sensor, a rotary encoder, a variable resistor, and a light detector.

Embodiment five

This embodiment provides a lifting platform, which includes a platform I, a hand controller II, an external controller 8, a linear actuator 9, a connecting frame III, two legs V and two connecting frames IV. "External" in the external controller 8 refers to the exterior of the hand controller II. Platen I is rectangular, the upward side is the use surface, and the downward side is the installation surface. The connecting frame IV adopts angle steel, and the two connecting frames IV are respectively installed on the installation surface of the platform I parallel to the two short sides of the platform I, and the connecting frame III is installed between the two connecting frames IV on the installation surface of the platform I , the external controller 8 is installed in the middle of the connection frame III, and the linear actuator 9 is used as the support frame of the lifting platform, and is installed through the connection frame IV and the platen I. In this embodiment, the linear actuator 9 preferably adopts electric putter. At the same time, in order to keep the appearance, the electric push rod is arranged in the telescopic rod, and the telescopic rod adopts a square telescopic rod, and the other end of the telescopic rod is provided with a foot V, so that the lifting platform is placed more stably. The hand controller II is installed on the installation surface of the table I, close to the long side of the table I, and is electrically connected with the external controller 8 through wires, the hand controller II rotates and transmits the signal to the external controller 8, and the external controller 8 The controller 8 drives the linear actuator 9 according to the signal of the hand controller II, and the linear actuator 9 drives the platen I to move.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the accompanying drawings and the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims (10)

1. a kind of hand controller for controlling linear actuators, including mounting base, it is characterised in that：The hand controller is further included for hand The rotational shell of dynamic rotation process, the rotational shell rotational installation are single in being equipped with control in the mounting base, the hand controller Member and the detecting element for being electrically connected to described control unit, the detecting element are used for the rotation position for detecting the rotational shell Change, and signal passed to peripheral control unit by described control unit, peripheral control unit is according to the letter of described control unit Number driving linear actuators stretches.

2. hand controller according to claim 1, it is characterised in that：The rotational shell has initial position and operative position Put, the operating position includes the first operating position and the second operating position, and the rotational shell turns to from initial position The direction of one operating position and the rotational shell from initial position turn to the second operating position direction on the contrary, from it is described just Beginning position to first operating position rotate when, the linear actuators is in extended configuration, from the initial position to institute When stating the rotation of the second operating position, the linear actuators is in contraction state.

3. hand controller according to claim 2, it is characterised in that：The rotational shell is replied from first operating position The linear actuators stops stretching, extension during to the initial position, and the rotational shell returns to described from second operating position During initial position, the linear actuators stops shrinking；Or the rotational shell be returned to from first operating position it is described The linear actuators stops shrinking during initial position, and the rotational shell returns to the initial bit from second operating position When putting, the linear actuators stops stretching, extension.

4. hand controller according to claim 1, it is characterised in that：The detecting element is hall effect sensor, described Magnet is equipped with hand controller.The magnet surface produces changing magnetic field, and the hall effect sensor is in the magnet In magnetic field range, the magnet and the hall effect sensor alternative one are installed on the rotational shell inner wall, another It is fixed on the mounting base.

5. hand controller according to claim 1, it is characterised in that：The detecting element is angular sensor, rotation One of encoder, variable resistance, photodetector.

6. the hand controller according to one of claim 1 to 5, it is characterised in that：The mounting base is equipped with flexible member, institute State rotational shell inner wall and be equipped with pushing block, the rotational shell has initial position and an operating position, and the rotational shell is from described Initial position turns to the operating position, and the pushing block promotes the flexible member that elastic deformation, the flexible member occurs Restoring force promote the rotational shell to return back to the initial position from the operating position.

7. hand controller according to claim 6, it is characterised in that：The flexible member is torsional spring, and the torsional spring includes spiral shell Rotation body and the first torque arm and the second torque arm extended by the spiral body, the mounting base center are equipped with mounting post, The pushing block includes the first pushing block and the second pushing block, and the mounting post is inserted into the spiral body, and first torque arm is resisted against First pushing block, second torque arm are resisted against second pushing block, and the rotational shell is turned to from the initial position One of the operating position, first torque arm and the second torque arm is promoted by the pushing block occurs elastic deformation.

8. hand controller according to claim 6, it is characterised in that：The flexible member includes the first spring and the second bullet Spring, the mounting base are equipped with the first mounting groove, and first spring and the second spring are installed on first mounting groove, First spring and second spring turn to the behaviour against the pushing block, the rotational shell from the initial position at the same time Make position, one of first spring and second spring are promoted by the pushing block occurs elastic deformation.

9. the hand controller according to one of claim 1 to 5, it is characterised in that：The hand controller further includes display unit, institute State display unit to be electrically connected with described control unit, the elevation information of the linear actuators is transferred to described by peripheral control unit Control unit, described control unit show elevation information by the display unit.

10. a kind of lifting platform, including platen, peripheral control unit and linear actuators, it is characterised in that：The lifting platform further includes Hand controller described in one of claim 1 to 11, the hand controller is electrically connected with the peripheral control unit or wireless connection, institute State peripheral control unit to be electrically connected with the linear actuators, the linear actuators is connected with the platen, the hand controller Rotate and signal is passed into the peripheral control unit, the peripheral control unit drives the line according to the signal of the hand controller Property actuator, the linear actuators drives the platen movement.