CN217689892U - Lifting device - Google Patents

Abstract

The utility model discloses a riser, the tip that handle on the riser is close to first support is equipped with magnet, and be equipped with on the first support with magnet complex magnetic encoder chip, this magnetic encoder chip detects the angle of the relative magnetic encoder chip of magnet and sends little the control unit through communication interface, little the control unit record and handle the information of magnetic encoder chip transmission. The utility model provides a lifter can realize the automatic school zero of the rotatory handle encoder of start, and convenient operation has just improved the safe in utilization of machine.

Description

Lifting device

Technical Field

The utility model relates to a lifter.

Background

The existing lifter operation is a manual lifter or an electric lifter. The functional module for controlling the starting, stopping and speed regulating functions of the electric lifter is used for a magnetic encoder, and the rotary motion part of the magnetic encoder causes original 0-position deviation due to machine disassembly and reassembly or reset spring deformation, so that the abnormal action of the machine causes certain injury to a human body or needs to be returned to a factory for maintenance and adjustment to delay emergency use. Therefore, a new technology is urgently needed to eliminate the problems caused by the reasons, and the machine can be simply and safely recovered to a normal use state through express delivery.

Disclosure of Invention

The utility model provides a lifter can realize the automatic school zero of the rotatory handle encoder of start, and convenient operation has just improved the safe in utilization of machine.

In order to solve the technical problem, the utility model provides a lifter, which comprises a casing, a first bracket and a second bracket, wherein the first bracket and the second bracket are positioned on the side surface of the casing; the first support is provided with a magnetic encoder chip matched with the magnet, the magnetic encoder chip detects the angle of the magnet relative to the magnetic encoder chip and transmits the angle to the micro control unit through the communication interface, and the micro control unit records and processes the information transmitted by the magnetic encoder chip.

According to the utility model discloses an aspect, little the control unit record with handle when starting the initial angle of the relative magnetic encoder chip of magnet to in the record and the processing riser work the rotation angle of the relative magnetic encoder chip of magnet.

According to an aspect of the utility model, magnet is located the middle part of handle tip.

According to an aspect of the utility model, the magnet center with magnetic encoder chip center is on a straight line.

According to the utility model discloses an aspect, the magnetic encoder chip is connected on the circuit board.

According to an aspect of the utility model, including fixed box, fixed box is located in the first support, magnetic encoder chip and circuit board set up in fixed box.

According to the utility model discloses an aspect, the magnetic encoder chip sets up press close to in the fixed box one side of magnet.

According to an aspect of the utility model, the handle with be equipped with the spring between the second support.

According to the utility model discloses an aspect, when the handle was located the state of not applying external force, the spring was in the normality that does not have external force.

According to an aspect of the utility model, the spring is located the handle tip, spring one end is supported and is leaned on and lean on the gasket by last one end of handle.

Compared with the prior art, the lifter that this application provided has following beneficial effect:

1. the micro control unit records the relative angle between the magnet and the magnetic encoder chip when the machine is started and sets the relative angle as a new relative 0 point position, so that the deviation of the initial 0 point position caused by the problems of reinstallation and the like is avoided;

2. the relative angle between the magnet and the magnetic encoder chip when the lifter works and the position difference value of a newly set 0 point are processed through the micro control unit, so that relatively accurate control is performed;

3. through setting up the spring for handle is by the automatic re-setting of spring under the condition of no external application force, and convenient operation has also improved the security.

The following detailed description of the embodiments of the present invention will be described in conjunction with the accompanying drawings.

Drawings

The invention is further described with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic view of the structure of the lifter provided by the present invention.

Fig. 2 is a partial cross-sectional view of a joint between a handle and a first bracket in an elevator according to the present invention.

Fig. 3 is a partial cross-sectional view of the joint between the handle and the second bracket of the lifter according to the present invention.

Fig. 4 is a flowchart illustrating the operation of the lifter according to the present invention.

In the figure: 1. a housing; 2. a second bracket; 3. a handle; 4. a zero position; 5. a first bracket; 6. a magnet; 7. a magnetic encoder chip; 8. a circuit board; 9. a fixing box; 10. a spring; 11. and (7) a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "front," "rear," and the like, which indicate orientation or positional relationship, are based only on the orientation or positional relationship shown in the drawings and are used only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed/sleeved," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The utility model provides a lifter, as shown in fig. 1, including casing 1, be equipped with motor and gear box in the casing, the motor rotates the gear rotation output that drives in the gear box. The rope grabbing device is arranged on the machine shell 1, is connected to the output shaft and can be driven to rotate, and then the rope received in the rope grabbing device is driven to move up and down. Since such transmission mechanisms are well known in the art, they will not be described herein.

The casing 1 is provided with a first support 5 and a second support 2 protruding out of the side face, wherein the first support 5 is close to the end face where the rope grabbing device is located, the second support 2 is located at the other end face which is close to the end face where the rope grabbing device is located and is far away from the end face where the rope grabbing device is located, for convenience of description, the end face where the rope grabbing device is located is defined as the front face, and the other parallel end face which is far away from the end face where the rope grabbing device is located is the rear face.

The handle 3 capable of rotating relatively is arranged between the first bracket 5 and the second bracket 2, so that in the embodiment, the first bracket 5 and the second bracket 2 protrude outwards for a certain distance, the distance is at least larger than the thickness of a palm, and a user can conveniently pass through a gap between the handle 3 and the shell 1 and grasp the handle 3 for rotating operation.

As shown in fig. 2-3, the end of the handle 3 near the first bracket 5 is provided with a magnet 6, and the magnet 6 is preferably disposed in the middle of the end of the handle 3. A spring 10 is arranged between the handle 3 and the second bracket 2, specifically, the spring 10 is positioned at the rear end part of the handle 3, one end of the spring 10 is abutted against the handle 3, and the other end is abutted against the gasket 11. In the present embodiment, it is preferable that the spring 10 is in a normal state without external force when the handle 3 is not applied with external force, so that when the handle 3 is applied with external force, i.e. the handle 3 is rotated, the spring 10 is applied with force to cause deformation thereof, and when the palm is removed, i.e. the external force is removed, the handle automatically returns to the initial position under the action of the spring force, which is convenient for operation and improves safety.

Be equipped with fixed box 9 in the first support 5, be equipped with magnetic encoder chip 7 and circuit board 8 in the fixed box 9, wherein magnetic encoder chip 7 sets up at circuit board 8 and is connected with circuit board 8 electricity. The magnetic encoder chip 7 is arranged on one side of the fixed box 9 close to the magnet 6, and the center of the magnet 6 and the center of the magnetic encoder chip 7 are on the same straight line. The surface of the magnet 6 is not more than the maximum allowable working distance from the surface of the magnetic encoder chip 7, and the surface is not more than 5mm according to actual measurement according to model inquiry.

The lifter in this embodiment is provided with a micro control unit, and the micro control unit records and processes information transmitted by the magnetic encoder chip, specifically, the micro control unit records and processes an initial angle of the magnet relative to the magnetic encoder chip when the lifter is started, and records and processes a rotation angle of the magnet relative to the magnetic encoder chip when the lifter works.

The work flow is shown in fig. 4, and specifically includes: turning on a power supply of the lifter to carry out power-on starting operation; the magnetic encoder chip detects the angle of the magnet relative to the magnetic encoder chip and transmits the angle to the micro control unit through the communication interface, and the micro control unit records the initial angle alpha of the magnet relative to the magnetic encoder chip and records the position at the moment as the position of a relative 0 point; when the operating handle rotates, the magnet in the handle rotates a certain angle alpha relative to the vertical center of the surface of the magnetic encoder chip, the magnetic encoder chip detects the angle beta of the magnet relative to the magnetic encoder chip and transmits the angle beta to the micro control unit through the communication interface, and the micro control unit calculates the actual rotation angle gamma of the handle through gamma = beta-alpha; because the machine may have misoperation or vibration reasons in the use process, in order to prevent the machine from being started by mistake, the starting angle is set to be 5 degrees through test and actual need, namely the lifter is normally started when gamma is more than or equal to 5 degrees, so that the micro control unit judges the angle of gamma at the moment, if gamma is less than 5 degrees, the real-time rotation angle is continuously judged, if gamma is more than or equal to 5 degrees, whether severe conditions such as over-temperature, overload, overvoltage and the like occur is judged, if all the conditions are normal, the lifter is normally started, and if not, the lifter is turned off; the speed of the lifter is controlled by reading the rotation angle of the magnet relative to the magnetic encoder chip in real time in the operation process, and specifically, the rotation angle of the handle corresponds to the speed of the lifter by using the magnetic encoder.

Therefore, the utility model provides a lifter can realize the automatic school of the rotatory handle encoder of start zero, and convenient operation has just improved the safety in utilization of machine.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The lifter comprises a machine shell, a first support and a second support, wherein the first support and the second support are positioned on the side face of the machine shell, and the lifter is characterized in that: a handle capable of rotating relatively is arranged between the first bracket and the second bracket, and a magnet is arranged at the end part of the handle close to the first bracket; the first support is provided with a magnetic encoder chip matched with the magnet, the magnetic encoder chip detects the angle of the magnet relative to the magnetic encoder chip and transmits the angle to the micro control unit through the communication interface, and the micro control unit records and processes the information transmitted by the magnetic encoder chip.

2. The lifter according to claim 1, characterized in that: and the micro control unit records and processes the initial angle of the magnet relative to the magnetic encoder chip when the lifter is started, and records and processes the rotating angle of the magnet relative to the magnetic encoder chip when the lifter works.

3. The lifter according to claim 1, characterized in that: the magnet is located in the middle of the end of the handle.

4. The lifter according to claim 3, characterized in that: the center of the magnet is in a straight line with the center of the magnetic encoder chip.

5. The lifter according to claim 1, characterized in that: the magnetic encoder chip is connected to the circuit board.

6. The lifter according to claim 5, characterized in that: the magnetic encoder comprises a fixing box, wherein the fixing box is positioned in the first support, and the magnetic encoder chip and the circuit board are arranged in the fixing box.

7. The lifter according to claim 6, characterized in that: the magnetic encoder chip is arranged on one side, close to the magnet, of the fixed box.

8. The lifter according to claim 4, characterized in that: and a spring is arranged between the handle and the second bracket.

9. The lifter according to claim 8, characterized in that: when the handle is in a state of not applying external force, the spring is in a normal state without external force.

10. The lifter according to claim 9, characterized in that: the spring is positioned at the end part of the handle, one end of the spring is propped against the handle, and the other end of the spring is propped against the gasket.

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