CN107942741B - A hand controller for controlling a linear actuator and a lifting platform - Google Patents
A hand controller for controlling a linear actuator and a lifting platform Download PDFInfo
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- CN107942741B CN107942741B CN201711084432.5A CN201711084432A CN107942741B CN 107942741 B CN107942741 B CN 107942741B CN 201711084432 A CN201711084432 A CN 201711084432A CN 107942741 B CN107942741 B CN 107942741B
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- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims abstract description 3
- 230000005355 Hall effect Effects 0.000 claims description 7
- 230000005489 elastic deformation Effects 0.000 claims 3
- 230000008602 contraction Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 description 8
- 230000006698 induction Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Control Devices (AREA)
- Manipulator (AREA)
Abstract
本发明公开了一种控制线性致动器的手控器以及升降台，涉及线性驱动技术领域，包括安装座，所述手控器还包括旋转外壳，所述旋转外壳转动安装于所述安装座，所述手控器内设有控制单元和检测元件，所述检测元件用于检测所述旋转外壳的旋转位置变化，并通过所述控制单元将信号传递给外部控制器，外部控制器根据所述控制单元的信号驱动所述线性致动器伸缩。本发明可节约操作器空间，结构小巧美观，外观完整度高，并且避免了误触发的情况。
The present invention discloses a hand controller and a lifting platform for controlling a linear actuator, which relates to the field of linear drive technology, and includes a mounting seat, the hand controller also includes a rotating shell, the rotating shell is rotatably mounted on the mounting seat, and a control unit and a detection element are provided in the hand controller, the detection element is used to detect the rotation position change of the rotating shell, and transmit the signal to an external controller through the control unit, and the external controller drives the linear actuator to extend and retract according to the signal of the control unit. The present invention can save the space of the operator, has a compact and beautiful structure, a high degree of appearance integrity, and avoids the situation of false triggering.
Description
[ Field of technology ]
The invention relates to the technical field of linear driving, in particular to a hand controller for controlling a linear actuator and a lifting table.
[ Background Art ]
Electric lifting tables are commonly used in residential, office and medical fields, such as height-adjustable desks, kitchen tables, office tables, hospital beds, and the like. In the prior art, the manipulator mostly adopts mechanical switches, physical keys, dials, touches and other modes to input commands such as lifting. The operation modes include long-press lifting, point-press lifting, one-key lifting and the like. The mechanical switch and the physical key have higher requirements on the consistency of key force, the mechanical and physical keys destroy the surface integrity and the aesthetic property of an operator, and in addition, key gaps are easy to accumulate dust and cause key blockage. The touch mode is mainly a capacitive touch key, and the touch mode is inconvenient to use due to the fact that false triggering exists.
[ Invention ]
In order to solve the problems, the invention provides a novel hand controller which can save the space of an operator, has a compact and attractive structure and high appearance integrity, and avoids the situation of false triggering.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The hand controller comprises a mounting seat, a rotary shell for manual rotary operation, the rotary shell is rotatably mounted on the mounting seat, a control unit and a detection element electrically connected with the control unit are arranged in the hand controller, the detection element is used for detecting the rotary position change of the rotary shell and transmitting signals to an external controller through the control unit, and the external controller drives the linear actuator to stretch according to the signals of the control unit.
Further, the rotary housing has an initial position and an operation position, the operation position includes a first operation position and a second operation position, the direction in which the rotary housing rotates from the initial position to the first operation position is opposite to the direction in which the rotary housing rotates from the initial position to the second operation position, the linear actuator is in an extended state when rotating from the initial position to the first operation position, and the linear actuator is in a contracted state when rotating from the initial position to the second operation position.
Further, the linear actuator stops being extended when the rotary housing returns from the first operation position to the initial position, and the linear actuator stops being contracted when the rotary housing returns from the second operation position to the initial position, or the linear actuator stops being contracted when the rotary housing returns from the first operation position to the initial position, and the linear actuator stops being extended when the rotary housing returns from the second operation position to the initial position.
Preferably, the detection element is a hall effect sensor, and a magnet is arranged in the hand controller. The surface of the magnet generates a changing magnetic field, the Hall effect sensor is in the magnetic field range of the magnet, one of the magnet and the Hall effect sensor is mounted on the inner wall of the rotary shell, and the other is fixed on the mounting seat.
Preferably, the detection element is one of a rotation angle sensor, a rotary encoder, a variable resistor, and a photodetector.
Preferably, the mounting seat is provided with an elastic element, the inner wall of the rotary shell is provided with a push block, the rotary shell is provided with an initial position and an operation position, the rotary shell rotates from the initial position to the operation position, the push block pushes the elastic element to elastically deform, and the restoring force of the elastic element pushes the rotary shell to restore from the operation position to the initial position.
Preferably, the elastic element is a torsion spring, the torsion spring comprises a spiral body, a first torsion arm and a second torsion arm, the first torsion arm and the second torsion arm extend from the spiral body, a mounting column is arranged at the center of the mounting seat, the push block comprises a first push block and a second push block, the mounting column is inserted into the spiral body, the first torsion arm abuts against the first push block, the second torsion arm abuts against the second push block, the rotary shell 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 elastically deform.
Preferably, the elastic element comprises a first spring and a second spring, a first mounting groove is formed in the mounting seat, the first spring and the second spring are mounted in the first mounting groove, the first spring and the second spring simultaneously abut against the pushing block, 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 pushing block to elastically deform.
Preferably, the hand controller further comprises a display unit electrically connected with the control unit, the external controller transmits the height information of the linear actuator to the control unit, and the control unit displays the height information through the display unit.
In addition, the invention also discloses a lifting platform which comprises a bedplate, an external controller and a linear actuator, wherein the lifting platform further comprises the manual controller which is electrically connected with the external controller or is in wireless connection with the external controller, the external controller is electrically connected with the linear actuator, the linear actuator is connected with the bedplate, the manual controller rotates and transmits signals to the external controller, the external controller drives the linear actuator according to the signals of the manual controller, and the linear actuator drives the bedplate to move.
After the technical scheme is adopted, the invention has the following advantages:
The side wall of the hand controller is rotated to carry out the adjustment operation, so that the integrity and the aesthetic property of the surface of the controller are maintained, the hand controller is small and attractive, the use space is saved, and misoperation caused by adopting capacitor triggering is avoided. Meanwhile, the mechanical keys are canceled, so that the defect that dust is easy to gather in key gaps is avoided. The hand controller adopts magnetic induction control, has quick and accurate response, can display the height of the linear actuator in real time by operating the display screen, is convenient for users to use, has a memory function, can memorize different heights, is convenient for users to quickly and accurately reach preset positions, and is further convenient for users to use.
The lifting platform disclosed by the invention has the same beneficial effects as the manual controller described above, and the deduction process of the two beneficial effects is similar, so that the two beneficial effects are not repeated here.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings. The best mode or means of the present invention will be described in detail with reference to the accompanying drawings, but is not limited to the technical scheme of the present invention. In addition, these features, elements, and components are shown in plural in each of the following and drawings, and are labeled with different symbols or numerals for convenience of description, but each denote a component of the same or similar construction or function.
[ Description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is an exploded view of a hand control according to a first embodiment of the present invention;
Fig. 2 is a schematic view of a hand controller in an initial position according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a hand control in an operational position according to a first embodiment of the present invention;
FIG. 4 is a flowchart illustrating the operation of a first embodiment of the present invention;
FIG. 5 is an exploded view of a hand controller according to a second embodiment of the present invention;
fig. 6 is a schematic view of a hand controller in an initial position according to a second embodiment of the present invention;
fig. 7 is a schematic view of a hand controller in an operating position according to a second embodiment of the present invention;
FIG. 8 is an exploded view of a hand control in a third embodiment of the present invention;
FIG. 9 is a schematic diagram of a fifth embodiment of the present invention;
In the accompanying drawings:
1-mount, 2-swivel housing, 3-magnet, 4-elastic element, 5-circuit board, 6-gland, 7-control panel, 8-external controller, 9-linear actuator, 11-connection mount, 12-mount slide rail, 13-screw post, 21-push block, 211-first push block, 212-second push block, 41-first spring, 42-second spring, 51-sensor, 52-control unit, 53-display, 54-memory, 55-control key, I-platen, II-hand controller, III-connection frame, IV-connection frame, V-foot.
[ Detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can 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 terms "upper", "lower", "left", "right", "lateral", "longitudinal", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, which are merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Embodiment one:
the embodiment provides a hand controller.
As shown in fig. 1 to 4, a hand controller comprises a mounting seat 1, a magnet 3, a sensor 51, a control unit 52, a display 53, a memory 54, a rotary shell 2, a circuit board 5, a gland 6 and a control panel 7, wherein one side of the mounting seat 1 is provided with a connecting seat 11 for mounting the hand controller at a specific position, the other side is provided with a mounting slide rail 12, the rotary shell 2 is mounted on the rotary slide rail 12, and the inner wall of the rotary shell is matched with the outer wall of the rotary slide rail 12 to realize rotary connection. In this embodiment, the magnet 3 is an arc-shaped magnet whose surface is treated to generate a region of varying magnetic field. The magnet 3 is fixedly arranged on the inner wall of the rotary shell 2 and rotates along with the rotation of the rotary shell 2, the sensor 51, the control unit 52, the memory 54 and the display 53 are arranged on the circuit board 5, the sensor 51 is positioned in the effective magnetic field range of the magnet 3, the gland 6 is arranged on the outer side of the circuit board 5, the screw hole column 13 is arranged on one side of the rotary shell 2, the mounting base 1 is provided with mounting holes respectively on the circuit board 5 and the gland 6, the screw penetrates through the mounting holes to be screwed into the screw hole column 13, and the circuit board 5 and the gland 6 are fixedly arranged on the mounting base 1. The rotary shell 2 is in clearance fit with the gland 6, the inner wall of the rotary shell 2 is provided with a step, and the gland 6 is matched with the step so as to prevent the rotary shell 2 from falling off. The gland 6 is provided with an avoidance hole for exposing the display 53, and the display 53 is positioned at the position of the avoidance hole. The control panel 7 is attached to the outer side of the gland 6, and the control panel 7 is provided with control keys 55.
The mounting seat 1 is provided with an elastic element 4, in this embodiment, the elastic element 4 is a torsion spring, the torsion spring comprises a spiral body, and a first torsion arm and a second torsion arm which extend from the spiral body, the first torsion arm is located at the left side of the vertical axis, and the second torsion arm is located at the right side of the vertical axis. The center position of one side of the installation seat 1 facing the rotary shell 2 is provided with an installation column, and the installation column is inserted into the spiral body. The inner wall of the rotary shell 2 is provided with a push block 21, the push block 21 comprises a first push block 211 and a second push block 212, and the first push block 211 and the second push block 212 are symmetrical relative to the axis of the vertical direction. The magnet 3 adopts an arc-shaped magnet, the radian of which is matched with that of the rotary shell 2, and is arranged at a position opposite to 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, the screw hole post 13 plays a role in limiting and blocking two torsion arms of the torsion spring besides the installation purpose. The rotary housing 2 has an initial position and an operating position, in which the push block 21 is located on the axis of the hand controller in the vertical direction, the first torsion arm and the second torsion arm are symmetrical with respect to the axis of the vertical direction, the torsion spring is not elastically deformed, or the deformation amounts of the first torsion arm and the second torsion arm with respect to the axis of the vertical direction are equal. The operation positions include a first operation position and a second operation position, and in this embodiment, the direction from the initial position to the second operation position is set to be clockwise, and the direction from the initial position to the first operation position is set to be counterclockwise, and the directions are opposite. The rotary shell 2 rotates from the initial position to the first operation position, the first push block 211 pushes the first torsion arm, the screw hole column 13 limits and separates the second torsion arm, the torsion spring is elastically deformed, the rotary shell 2 rotates from the initial position to the second operation position, the second push block 212 pushes the second torsion arm, the screw hole column 13 limits and separates the first torsion arm, the torsion spring is elastically deformed, the rotary shell 2 stops rotating and is released, and the restoring force of the torsion arm pushed to elastically deform pushes the rotary shell 2 to automatically restore to the initial position from the first operation position or the second operation position.
In the embodiment, the sensor 51 is a linear hall effect sensor, the model is SS39ET, the sensor 51 is electrically connected with the control unit 52, the control unit 52 is electrically connected with the external controller 8, the external controller 8 is electrically connected with the linear actuator 9, the hand controller 2 rotates to drive the sensor 51 to detect the magnetic induction intensity and direction of different positions of the magnet 3, signals are transmitted to the external controller 8 through the control unit 52, and the external controller 8 drives the linear actuator 9 to extend or retract according to the signals of the control unit 52. The rotary housing 2 is rotated from the initial position to the first operation position, the linear actuator 9 is in the extended state, the rotary housing 2 is rotated from the initial position to the second operation position, and the linear actuator 9 is in the contracted state. The rotation is stopped and the rotary case 2 is released, the rotary case 2 is automatically returned to the initial position from the first operation position or the second operation position by the restoring force of the torsion spring, the linear actuator 9 stops being extended when the rotary case 2 is returned to the initial position from the first operation position, and the linear actuator 9 stops being contracted when the rotary case 2 is returned to the initial position from the second operation position.
The display 53 is electrically connected with the control unit 52, the memory 54 is electrically connected with the control unit 52, the external controller 8 transmits the height signal of the linear actuator 9 to the control unit 52, the control unit 52 displays the height information through the display 53, the memory 54 stores a plurality of operation instructions and heights corresponding to the operation instructions, the operation instructions are triggered, and the control unit 52 drives the linear actuator 9 to reach the corresponding heights 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 being connected to the memory 54, the operation instructions being triggered by the control keys 55.
The sensor 51 converts the magnetic induction intensity and direction of the different positions of the magnet 3 into a voltage signal and outputs the voltage signal to the control unit 52. In the initial position, the magnetic induction intensity is 0, the sensor 51 outputs an intermediate voltage, and in the operating position, the magnetic induction intensity and direction detected by the sensor 51 are changed, so that the voltage output by the sensor 51 is linearly increased or linearly decreased based on the intermediate voltage. The increase or decrease in the output voltage of the sensor 51 can be used to distinguish between extension and retraction, and the magnitude of the increase or decrease in voltage can be used to scale the height of the extension. The control unit 52 receives the voltage signal from the sensor 51, and the control unit 52 converts the voltage signal into a telescopic command and transmits the telescopic command to the external controller 8, and the external controller 8 sends a signal to the linear actuator 9 to control the telescopic operation of the linear actuator 9. At the same time, the external controller 8 feeds back the height information to the display 53 for display. After the hand is released, the hand controller 2 automatically swings to the initial position, and the sensor 51 detects that the magnetic induction intensity is reset to 0, and the telescoping operation is stopped.
Embodiment two:
As shown in fig. 5 to 7, in the present embodiment, the elastic element 4 includes a first spring 41 and a second spring 42, a first mounting groove is provided on the mounting base 1, the first spring 41 and the second spring 42 are mounted in the first mounting groove, a push block 21 is provided on an inner wall of the rotating housing 2, the first spring 41 and the second spring 42 simultaneously abut against the push block 21, the first spring 41 is located on the left side of the push block 21, and the second spring 42 is located on the right side of the push block 21. The magnet 3 is a bar magnet and is fixedly arranged at the push block 21. The rotary housing 2 has an initial position in which neither the first spring 41 nor the second spring 42 is elastically deformed in a natural state, or in which the amounts of deformation occurring in the first spring 41 and the second spring 42 are equal, and an operating position. The operation positions include a first operation position and a second operation position, and in this embodiment, the direction from the initial position to the second operation position is set to be clockwise, and the direction from the initial position to the first operation position is set to be counterclockwise, and the directions are opposite. When the rotary housing 2 rotates from the initial position to the first operation position, the second spring 42 is pushed by the push block 21 to be elastically deformed, the first spring 41 is in a natural state, the linear actuator 9 is in an extended state, and when the rotary housing rotates from the initial position to the second operation position, the first spring 41 is pushed by the push block 21 to be elastically deformed, the second spring 42 is in a natural state, and the linear actuator 9 is in a contracted state. The rotation is stopped and the rotary housing 2 is released, and the restoring force of the spring urged to be elastically deformed urges the rotary housing 2 to automatically return to the initial position from the first operation position or the second operation position. The linear actuator 9 stops extending when the rotary housing 2 returns from the first operation position to the initial position, and the linear actuator 9 stops contracting when the rotary housing returns from the second operation position to the initial position.
Example III
As shown in fig. 8, in the first embodiment, the elastic element 4 is a spring, the mounting seat 1 is provided with a second mounting groove, the spring is mounted in the second mounting groove, the push block 21 extends into a gap between two adjacent rings of the spring, and in the initial position, the spring is not elastically deformed, or the deformation amounts of the springs on the left side and the right side of the push block 21 are equal by taking the push block 21 as a central line.
Example IV
In this embodiment, the detecting element is one of a rotation angle sensor, a rotation encoder, a variable resistor, and a photodetector.
Example five
The embodiment provides a lifting platform which comprises a bedplate I, a hand controller II, an external controller 8, a linear actuator 9, a connecting frame III, two supporting feet V and two connecting frames IV. "external" in the external control 8 refers to the outside of the hand control II. The bedplate I is rectangular, the upward side is a using surface, and the downward side is a mounting surface. The connecting frames IV are angle steel, the two connecting frames IV are respectively arranged on the mounting surface of the bedplate I and parallel to the two short sides of the bedplate I, the connecting frame III is arranged between the two connecting frames IV on the mounting surface of the bedplate I, the external controller 8 is arranged in the middle position in the connecting frame III, the linear actuator 9 is used as a supporting frame of the lifting platform, and the linear actuator 9 is arranged with the bedplate I through the connecting frames IV, and in the embodiment, the linear actuator 9 preferably adopts an electric push rod. Meanwhile, for keeping attractive appearance, the electric push rod is arranged in the telescopic rod, the telescopic rod is a square telescopic rod, and the other end of the telescopic rod is provided with the support leg V, so that the lifting table is placed more stably. The hand controller II is arranged on the mounting surface of the bedplate I, is close to the long side position of the bedplate I, is electrically connected with the external controller 8 through a lead, rotates and transmits signals to the external controller 8, and the external controller 8 drives the linear actuator 9 according to the signals of the hand controller II, and the linear actuator 9 drives the bedplate I to move.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that the present invention includes but is not limited to the accompanying drawings and the description of the above specific embodiment. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084432.5A CN107942741B (en) | 2017-11-07 | 2017-11-07 | A hand controller for controlling a linear actuator and a lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084432.5A CN107942741B (en) | 2017-11-07 | 2017-11-07 | A hand controller for controlling a linear actuator and a lifting platform |
Publications (2)
| Publication Number | Publication Date |
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| CN107942741A CN107942741A (en) | 2018-04-20 |
| CN107942741B true CN107942741B (en) | 2024-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711084432.5A Active CN107942741B (en) | 2017-11-07 | 2017-11-07 | A hand controller for controlling a linear actuator and a lifting platform |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111449414B (en) * | 2020-03-31 | 2024-09-17 | 浙江捷昌线性驱动科技股份有限公司 | Multifunctional hand controller for height-adjustable furniture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002270065A (en) * | 2001-03-14 | 2002-09-20 | Zexel Valeo Climate Control Corp | Automatic neutral point return type shuttle switch mechanism |
| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knobs and electrical products |
| CN106235945A (en) * | 2016-10-19 | 2016-12-21 | 上海健康医学院 | A kind of intelligence power-assisted chair for closet |
| CN207895253U (en) * | 2017-11-07 | 2018-09-21 | 浙江捷昌线性驱动科技股份有限公司 | A kind of hand controller and lifting platform of control linear actuators |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206544889U (en) * | 2016-12-30 | 2017-10-10 | 林德（中国）叉车有限公司 | A kind of multifunctional operating handle |
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2017
- 2017-11-07 CN CN201711084432.5A patent/CN107942741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002270065A (en) * | 2001-03-14 | 2002-09-20 | Zexel Valeo Climate Control Corp | Automatic neutral point return type shuttle switch mechanism |
| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knobs and electrical products |
| CN106235945A (en) * | 2016-10-19 | 2016-12-21 | 上海健康医学院 | A kind of intelligence power-assisted chair for closet |
| CN207895253U (en) * | 2017-11-07 | 2018-09-21 | 浙江捷昌线性驱动科技股份有限公司 | A kind of hand controller and lifting platform of control linear actuators |
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| CN107942741A (en) | 2018-04-20 |
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