CN219546572U - Portable elevator - Google Patents

Abstract

The utility model provides a portable elevator, which relates to the technical field of elevators and comprises: the power drive system, the battery, the rope grab and the user operation device; the power drive system includes: an electric motor, a drive shaft device, and a controller; the battery is used for providing electric energy for the motor and the controller; the rope grabbing device is of a roller structure, the rope is wound on the outer surface of the rope grabbing device, and two ends of the rope are positioned outside the portable lifter; an output shaft of the motor engine is connected with a middle shaft of the rope grab through a driving shaft device and is used for driving the rope grab to rotate; in a state that the rope grab rotates, the rope grab drives the rope to move in a first moving direction or a second moving direction so as to enable the portable lifter to ascend or descend along the rope. The utility model can improve the safety and the working efficiency of the operation by using the portable lifter, and reduce the labor intensity and the risk; the portable elevator control device has the advantages of improving the control convenience and sensitivity of the portable elevator, along with simple structure, convenient use and high reliability.

Description

Portable elevator

Technical Field

The utility model relates to the technical field of elevators, in particular to a portable elevator.

Background

The lifter is mainly lifting equipment capable of lifting people or cargoes to a certain height, and most of the lifters are large-sized equipment, and a safe supporting point such as a tripod, a cross beam or a bridge crane is needed, so that the lifter cannot be well applied to the situations of small space and high height, and is high in manufacturing cost and cannot meet the use requirement. At present, portable elevators are appeared in the market, and operators carry the portable elevators with them, and the lifting of the operators is completed by lifting or lowering the ropes by the portable elevators, i.e. the operators can travel in the vertical direction along the ropes; the portable elevator may be used in situations such as road rescue, mountain climbing, cave exploration, rescue operations, military operations, and the like. However, the existing portable lifter has the problems of complex structure, inconvenient operation, poor reliability and the like.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned technical problems. Embodiments of the present utility model provide a portable elevator.

According to an embodiment of the present utility model, there is provided a portable elevator including: the power drive system, the battery, the rope grab and the user operation device; the power drive system includes: an electric motor, a drive shaft device, and a controller; the battery is used for providing electric energy for the motor and the controller; the rope grabbing device is of a roller structure, ropes are wound on the outer surface of the rope grabbing device, and two ends of each rope are positioned outside the portable lifter; an output shaft of the electric engine is connected with a center shaft of the rope grab through a driving shaft device and is used for driving the rope grab to rotate; in a state that the rope grab rotates, the rope grab drives the rope to move in a first moving direction or a second moving direction so as to enable the portable lifter to ascend or descend along the rope; the user operation device includes: a handle rotatable in a first rotational direction and a second rotational direction and a rotation detection device; the rotation detection device is connected with the controller and is used for generating first rotation information and second rotation information of the handle; when the handle rotates between the intermediate position and the first end position and in a first rotation direction, the rotation detection device sends first rotation information to the controller, and the controller controls the output shaft of the electric engine to rotate in the first rotation direction and controls the rotation speed of the output shaft of the electric engine based on the first rotation information; the rotation detecting device transmits second rotation information to the controller when the handle rotates in a second rotation direction between the intermediate position and the second end position, and the controller controls the output shaft of the electric motor to rotate in the second rotation direction and controls the rotation speed of the output shaft of the electric motor based on the second rotation information.

Optionally, the method comprises: a manual engine operating member; the engine manual operation member includes: a spring plate device; under the condition that the band-type brake mechanism carries out band-type brake on the motor, the band-type brake mechanism is carried out band-type brake releasing operation by pushing the elastic sheet device, and the opening and closing degree of the band-type brake mechanism is controlled by controlling the stroke of pushing the elastic sheet device.

Optionally, the method comprises: an emergency stop switch; the emergency stop switch is electrically connected with the controller and is used for sending a stop operation instruction to the controller so that the controller controls the output shaft of the electric engine to stop rotating according to the stop operation instruction; a power button switch; the power button switch is used for switching on and off an electric energy transmission line between the battery and the motor; a wireless receiving device; the wireless receiving device is electrically connected with the controller and is used for sending a remote control instruction sent by the received remote controller to the controller so that the controller controls the motor engine based on the remote control instruction.

Optionally, the method comprises: the drive shaft device comprises a speed reducer device; the two ends of the speed reducer device are respectively connected with the output shaft of the motor engine and the central shaft of the rope grab, wherein the connection mode of the speed reducer device and the central shaft of the rope grab comprises the following steps: a key connection; a U-shaped groove or a V-shaped groove is formed in the end part of the rope grab, and the surface of the U-shaped groove or the surface of the V-shaped groove are in contact with the rope; the surface of the U-shaped groove or the V-shaped groove is provided with a protruding structure for increasing friction force between the rope and the surface of the U-shaped groove or the V-shaped groove.

Optionally, the rotation detection device includes: the micro-switch comprises a connecting piece, a micro-switch and an angle sensor comprising a permanent magnet; the micro switch and the angle sensor are electrically connected with the controller; the angle sensor and the connecting piece are arranged at one end of the handle; when the handle rotates to a preset middle position, the protrusion on the connecting piece presses on the pulley of the micro switch so as to enable the micro switch to be in a closed state; when the handle is rotated to enable the protrusion on the connecting piece to leave the pulley of the micro switch, the micro switch is in an open state; wherein the first rotation information includes: the direction and speed of the handle rotating in the first rotating direction between the middle position and the first end position and the information of whether the micro switch is in an open state or not, which are acquired by the angle sensor; the second rotation information includes: the direction and speed of rotation of the handle between the intermediate position and the second end position and in the second rotational direction, and information whether the micro switch is in an open state, which are acquired by the angle sensor.

Optionally, the power driving system and the rope grab are arranged in the elevator shell; an annular groove for installing a battery is formed in the lower part of the elevator shell, and the annular groove is connected with one end of the battery in a pluggable fit manner; the handle is arranged at the side part of the elevator shell; the engine manual operation member is mounted on top of the elevator housing. The elevator shell is provided with a heat radiation structure, and the heat radiation structure comprises a plurality of oblong heat radiation through holes for radiating heat.

Optionally, the method comprises: a portable locking mechanism; the portable locking mechanism is arranged at the side part of the elevator shell and used for locking the battery and preventing the battery from falling off; the portable locking mechanism includes: the device comprises an upper shell, a pressing plate, a rotating shaft, a sliding block, a lower shell and a spring, wherein the pressing plate, the rotating shaft and the sliding block are arranged between the upper shell and the lower shell, the pressing plate is rotatably connected with the sliding block through the rotating shaft, and two ends of the spring are respectively arranged in a mounting hole of the sliding block and a mounting hole of the lower shell; one end of the sliding block is used for locking the battery in a state that the pressing plate is not pressed; when the pressing plate is pressed to the pressing end position and pushed to the pushing end position, the locking of one end of the sliding block to the battery is released.

Optionally, the method comprises: a plate mechanism; the plate mechanism is arranged at the side part of the elevator shell and comprises a cover plate mechanism; the cover plate mechanism comprises a cover plate and a pin shaft; the cover plate is hinged with the fixed plate of the plate mechanism through the pin shaft and is used for shielding the rope grab; the plate type mechanism comprises a buckle structure, the locking of the cover plate is released when the buckle structure is in an open state, and the locking of the cover plate is realized when the buckle structure is in a closed state; the clamping structure comprises a first pulley and a second pulley; one end of the rope penetrates into the buckle structure, enters the rope grabbing device after bypassing the first pulley, and penetrates out of the buckle structure after bypassing the second pulley after winding the rope grabbing device.

Optionally, the plate mechanism includes: the safety lock catch is used for being connected with a safety belt lock catch of an operator; the plate mechanism comprises an installation fixing plate, and at least one anchoring point is arranged on the installation fixing plate.

Optionally, at least one wear pad is disposed on both the surface of the plate mechanism and the surface of the elevator housing, wherein the wear pad comprises: rubber; two connecting pieces are arranged on the top of the elevator shell, and mounting holes are arranged on the connecting pieces and used for penetrating the hanging strips.

Based on the portable lifter provided by the embodiment of the utility model, the safety and the working efficiency of working by using the portable lifter can be improved, and the labor intensity and the risk are reduced; the portable elevator control convenience and sensitivity are improved, the portable elevator control device is simple in structure, convenient to use and high in reliability, and the use experience of a user is improved.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

The above and other objects, features and advantages of the present utility model will become more apparent by describing embodiments thereof in more detail with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings, like reference numerals generally refer to like parts or steps.

FIGS. 1a to 1d are schematic views showing the overall structure of an embodiment of a portable elevator according to the present utility model;

FIG. 2 is a detailed partially exploded view of a user operated device of one embodiment of the portable elevator of the present utility model;

FIGS. 3a and 3b are operational mounting diagrams of one embodiment of the portable elevator of the present utility model;

fig. 4a to 4h are schematic views showing a specific structure of a buckle structure of an embodiment of the portable elevator according to the present utility model;

fig. 5a to 5e are specific structural views of a portable locking structure of an embodiment of the portable lifter of the present utility model;

fig. 6 is a schematic view of a heat dissipating structure of an embodiment of the portable elevator of the present utility model.

Detailed Description

It will be appreciated by those of skill in the art that the terms "first," "second," etc. in embodiments of the present utility model are used merely to distinguish between different steps, devices or modules, etc., and do not represent any particular technical meaning nor necessarily logical order between them.

It should also be understood that in embodiments of the present utility model, "plurality" may refer to two or more, and "at least one" may refer to one, two or more.

It should also be appreciated that any component, data, or structure referred to in an embodiment of the utility model may be generally understood as one or more without explicit limitation or the contrary in the context.

In addition, the term "and/or" in the present utility model is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present utility model, the character "/" generally indicates that the front and rear related objects are an or relationship.

It should also be understood that the description of the embodiments of the present utility model emphasizes the differences between the embodiments, and that the same or similar features may be referred to each other, and for brevity, will not be described in detail. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In one embodiment, as shown in fig. 1a-1d, the present utility model provides a portable elevator 100 that includes a power drive system, a battery 106, a rope grab, and a user operated device 105, among other things. The power driving system comprises an electric engine, a driving shaft device, a controller and the like, wherein the electric engine can be various electric engines, the controller is used for controlling the electric engine to run, and the controller can be arranged independently or integrally with the electric engine.

The battery 106 may be a variety of rechargeable batteries for providing electrical power to the motor and controller, etc. The rope grab is of a roller structure, the rope is wound on the outer surface of the rope grab, and two ends of the rope are positioned outside the portable lifter. The output shaft of the motor engine is connected with the middle shaft of the rope grab through a driving shaft device and is used for driving the rope grab to rotate. In a state that the rope grab rotates, the rope grab drives the rope to move in a first moving direction or a second moving direction so as to enable the portable lifter to ascend or descend along the rope.

For example, the operator binds the portable elevator to himself when climbing. The two ends of the rope are positioned outside the portable elevator, a section of the middle of the rope is wound on the outer surface of the rope grabbing device, and the upper end of the rope is connected with a fixed point above the rope. The operator controls the motor to drive the rope grab to rotate through the user operating device, and the rope grab drives the rope to move in the first moving direction or the second moving direction under the state that the rope grab rotates, so that the portable lifter ascends or descends along the rope, and the operator is driven to ascend or descend.

In one embodiment, the portable elevator includes an elevator housing 101, a plate mechanism 107, an engine manual operation member (manual operation structure) 111, a heat dissipation structure 109, a portable locking structure 112, and the like. The battery 106 can be detachably connected to the elevator housing 101, for example, an annular groove F04 for mounting the battery is provided in a lower portion of the elevator housing 101, and the annular groove F04 is connected with one end of the battery 106 in a pluggable fit.

Two connectors 103 and 104 are provided at the top of the elevator housing 101, and mounting holes, such as oblong holes or the like, are provided in the connectors 103 and 104 for penetrating the harness through which an operator can take out the portable elevator and carry the portable elevator while the operator walks. The plate mechanism 107 comprises two latch apertures 108, the latch apertures 108 being used for assembling a safety latch. The safety lock catch is fixed on the portable elevator for a long time, and when the portable elevator is used by an operator, the safety lock catch of the safety lock catch is connected with the safety lock catch in the lock catch hole 108, so that the safety of the operator when the portable elevator is used can be ensured.

A power drive system, rope grab, is mounted within the elevator housing 101 and an engine manual operation member 111 is mounted on top of the elevator housing 101. The portable locking structure 112 is assembled to one side of the elevator housing 101 by means of screw fastening, and the plate mechanism 107 is mounted to the other side of the elevator housing 101 by means of screw fastening. The user operating device 105 is connected to both the portable locking structure 112 and the plate mechanism 107 by its own structure and is located at the side of the elevator housing 101.

The engine manual operation member 111 includes a spring plate device, and in the case where the band-type brake mechanism band-type brake is operated to the motor engine by pushing the spring plate device, the opening and closing degree of the band-type brake mechanism is controlled by controlling the stroke of pushing the spring plate device. In an emergency situation, for example, a fault or a battery is dead, the user operation device 105 is in a state of being unable to use, and needs to use a manual pushing spring device to perform a descending action, the pushing spring device can open the band-type brake (the motor cannot rotate in the band-type brake state), and the travelling stroke of the spring device also determines the opening amount of the band-type brake, so that the descending speed is affected.

For example, the spring piece means of the manual engine operating member 111 includes a rubber sleeve, a spring piece, and the like, over which the rubber sleeve is sleeved. When the portable lifter 100 stops running or the user operation device 105 cannot be used normally, the portable lifter 100 is in the band-type brake state and cannot rotate. When the elastic sheet advances towards the direction of releasing the band-type brake, the band-type brake can be opened, and the motor can rotate, so that the rope can be pushed, an operator can also descend along with the push of the rope, and the safety and the reliability of the portable elevator 100 as well as the operability and the safety under emergency conditions are ensured.

The elastic sheet device can be connected with the band-type brake mechanism through various existing band-type brake release mechanisms, the band-type brake release mechanism is controlled to carry out band-type brake release operation on the band-type brake mechanism in the process of pushing the elastic sheet device, and the band-type brake release mechanism is controlled to control the opening and closing degree of the band-type brake mechanism according to the stroke of the elastic sheet device. Or the spring plate device is connected with the controller, and sends a control signal (for example, a level signal) to the controller in the process of pushing the spring plate device; the controller carries out band-type brake release operation to band-type brake mechanism based on control signal to the control signal that shell fragment device sent to the controller is different along with the stroke difference of shell fragment device, and the controller can be according to the switching degree of control signal control band-type brake mechanism.

The heat dissipation structure 109 is fixed to the rear side of the elevator housing 101 by means of screw locking, and the heat dissipation structure 109 includes a plurality of oblong heat dissipation through holes for dissipating heat. At least one anti-wear pad 110 is arranged on the surface of the plate mechanism 107 and the surface of the elevator housing 101, and the anti-wear pad 110 is made of rubber or the like; the wear pad 110 may be adhered to the elevator housing 101 and the plate mechanism 107 using glue and the wear change in appearance may be effectively prevented using rubber products disposed on the outer surface that will wear. The plate mechanism 107 comprises a mounting plate on which two anchor points 306 are arranged, the anchor points 306 being arranged to receive an anchor force extending in a second main direction.

As shown in fig. 3a-3b, the portable elevator 100 operates as follows: firstly, the battery 106 is inserted into the portable lifter 100, and the battery 106 is stabilized by using a portable locking structure, so that the battery 106 is ensured not to shake; the cover 301 and the catch 307 are then opened, the rope is subsequently threaded through the catch, the rope gripper 304 is extended from the catch 307 after a round, the cover 301 is then closed, and the catch 307 is locked, thus completing the assembly of the portable elevator 100. Rope grab 304 may be used to receive and advance the rope as the motor drives rotation of rope grab 304, thereby effecting ascent and descent of portable elevator 100 along the rope.

In one embodiment, the user operated device comprises a handle rotatable in a first rotational direction and a second rotational direction and a rotation detecting means; the rotation detection device is connected with the controller and used for generating first rotation information and second rotation information of the handle; the handle intermediate position is located intermediate the first end position and the second end position, and the rotation angles of the handle in the first rotation direction and the second rotation direction are identical.

When the handle is rotated in the first rotational direction between the intermediate position and the first end position, the rotation detecting device transmits first rotational information to the controller, and the controller controls the output shaft of the electric motor to rotate in the first rotational direction and controls the rotational speed of the output shaft of the electric motor based on the first rotational information. The rotation detecting device transmits second rotation information to the controller when the handle rotates in the second rotation direction between the intermediate position and the second end position, and the controller controls the output shaft of the electric motor to rotate in the second rotation direction and controls the rotation speed of the output shaft of the electric motor based on the second rotation information. The larger the rotation angle of the handle is, the larger the rotation speed of the rope grab is, so that the rising and falling speeds of the rope are realized, and the requirements in different scenes are met.

As shown in fig. 2, the rotation detecting device includes a connector 201, a micro switch 203, and an angle sensor including a permanent magnet 202; the micro switch 203 may be any of a variety of existing micro switches, and the angle sensor may be any of a variety of existing angle sensors, capable of detecting the rotational direction and speed of the handle. The micro switch 203 and the angle sensor are electrically connected with the controller.

The angle sensor and the connecting piece 201 are installed at one end of the handle; when the handle rotates to a preset middle position, the protrusion on the connecting piece 201 presses onto the pulley of the micro switch 203, so that the micro switch 203 is in a closed state; when the handle is rotated to separate the protrusion on the connector 201 from the pulley of the micro switch 203, the micro switch 203 is in an open state; wherein the first rotation information includes: the direction and speed of the handle rotation in the first rotation direction between the intermediate position and the first end position collected by the angle sensor, and the information whether the micro switch 203 is in the open state; the second rotation information includes: the direction and speed of the handle rotation in the second rotation direction between the intermediate position and the second end position and the information of whether the micro switch 203 is in the open state, which are acquired by the angle sensor; the information about whether the micro switch 203 is in the on state is sent to the controller by the micro switch 203.

When the controller determines that the micro switch 203 is in the on state based on the information whether the micro switch 203 is in the on state in the first rotation information, the electric motor is controlled to operate based on the direction and the speed in which the handle in the first rotation information rotates between the intermediate position and the first end position and in the first rotation direction. When the controller determines that the micro switch 203 is in the on state based on the information whether the micro switch 203 is in the on state in the second rotation information, the electric motor is controlled to operate based on the direction and the speed in which the handle in the first rotation information rotates between the intermediate position and the second end position and in the second rotation direction.

In one embodiment, the micro switch 203 is installed, the permanent magnet 202, the connecting piece 201 and the handle are assembled, the handle is rotated to adjust the handle position, the initial position is determined through a bump, when the handle rotates to the preset initial position (the middle position), the characteristic protrusion of the connecting piece 201 just presses on the pulley of the micro switch 203, the micro switch 203 is in a closed state, when the handle is rotated to enable the characteristic protrusion to leave the pulley of the micro switch 203, the pulley is sprung open, the micro switch 203 is opened, and the rotation related parameters of the rope grabbing device 304 can be controlled through the rotation of the handle after a signal is transmitted.

The handle has two rotational directions, a first rotational direction 204 and a second rotational direction 205, and both directions have corresponding maximum rotational end positions, the handle being rotatable between the first rotational direction 204 end position and the second rotational direction 205 end position. The middle position can be positioned in the middle of the end position of the first rotating direction 204 and the end position of the second rotating direction 205, and the permanent magnet 202 rotates along with the handle, so that the rotating angle and the rotating direction can be detected by the sensor at any moment and transmitted to the controller; the rotating direction and the rotating speed of the rope grab 304 can be controlled through the rotating direction and the rotating angle of the handle, the advancing direction of the rope and the rising and falling of an operator are determined, the operating difficulty of the operator is greatly reduced, and the rope grab is more portable.

The portable elevator 100 passively extends in a first primary direction (up) or in a second primary direction (down) by rope grab propulsion ropes, the speed and direction of rope propulsion being controlled by a user operated device 105. The portable elevator 100 includes an emergency stop switch electrically connected to the controller for sending a stop command to the controller to cause the controller to control the output shaft of the electric engine to stop rotating according to the stop command. The portable lift 100 includes a power button switch for switching on and off the power transmission line between the battery and the motor.

The portable elevator 100 includes a wireless receiving device electrically connected to the controller, and configured to send a remote control command sent by the received remote controller to the controller, so that the controller controls the motor based on the remote control command, thereby implementing control by the remote controller, implementing control by a second operator at a remote location, and increasing reliability and portability of operation of the portable elevator 100.

In one embodiment, the drive shaft means comprises a speed reducer means or the like, both ends of which are connected to the output shaft of the electric motor and the central shaft of the rope grab 304, respectively, wherein the connection means with the central shaft of the rope grab 304 comprises a key connection or the like. The rope grab 304 rotates the push rope in the first and second main directions. A U-shaped groove or a V-shaped groove is formed in the end part of the rope grab 304, and the surface of the U-shaped groove or the V-shaped groove is contacted with the rope; the rope gripper 304 is a circular roller which can be contacted with the rope through a U-shaped or V-shaped joint surface of the circular roller, the circular roller can partially shrink the rope through rotating action, the rope is more and more compact when entering the rope, the rope is more and more loose when exiting the rope, and the propulsion of the rope in the first direction and the second direction is realized. The surface of the U-shaped groove or V-shaped groove is provided with a protruding structure, e.g. ridge-like protrusions or the like, for increasing the friction between the rope and the surface of the U-shaped groove or V-shaped groove.

In one embodiment, as shown in fig. 3a-3b, the plate mechanism comprises a cover plate mechanism comprising a cover plate 301 and a pin 302. The cover 301 is hinged to the elevator housing 101 by a pin 302, and the cover 301 is used for shielding the rope grab 304. The cover mechanism is a hinge structure, the cover 301 can be opened and closed by rotating, the cover 301 is a safety cover for shielding the rope grab 304, and the cover 301 covers the rope grab 304 during the actual operation state of the elevator, so that an operator can avoid carelessly touching the rope grab 304 in the rotating state. In the opened state of the cover 301, the rope can be introduced into the rope grab 304 and wound one round.

The cover plate 301 can realize portable opening and closing states by rotating in the radial direction of the pin shaft 302, the cover plate 301 has two end positions in the axial direction, and limiting is realized after the cover plate 301 rotates to the end positions, so that the reliability of the structure is improved. The rope grab 304 is positioned at the center of the plate mechanism 107, and the cover plate mechanism is positioned at the middle lower part of the plate mechanism 107, so that the rope grab 304 can be smoothly covered. As shown in fig. 3b, the rope is first pushed from the D1 position, wound around the rope gripper 304 along the direction D1-D2, then taken out from the D2 position, then the cover plate mechanism 301 is covered down to the end position, and finally the fastening structure 307 is locked, so that the installation can be completed.

In one embodiment, the locking of the cover plate 301 is released when the snap structure 307 is in an open state, and the snap structure 307 enables the locking of the cover plate 301 when the snap structure 307 is in a closed state. The clasp 307 includes a first pulley and a second pulley, one end of the rope passing into the clasp 307, entering the rope grab 304 after wrapping around the first pulley, and passing out of the clasp 307 after wrapping around the rope grab 304 (one winding) around the second pulley. The pulley can obviously reduce the friction between the rope and the buckling structure 307, the rolling friction can reduce the abrasion of the buckling structure 307 to a greater extent, the abrasion loss of the rope can also be reduced to a greater extent, the replacement rate of the buckling structure 307 is reduced, and the service life of the rope is prolonged.

The snap feature 307 may be a variety of structures. For example, the buckle structure 307 has a pressing direction, an extremely rebound direction, an opening rotation direction and a closing rotation direction, the buckle structure 307 can be opened by rotating the designated part according to the opening rotation direction after the pressing direction reaches the terminal position, the buckle structure 307 can be closed by pushing the buckle structure 307 directly along the closing rotation direction without pressing in the opening state, and the buckle structure 307 can realize locking of the cover plate mechanism.

As shown in fig. 4a-4h, the snap locking arrangement 307 comprises a press block 401, a rotation shaft 407, a spring (not shown), two locking bolts 402 and 405, two pulleys 404, a stop 406, a fixed seat 403. The hole feature F01 in fig. 4c is the place where the spring is placed, and in order to ensure the reliability of the use of the spring, the same hole feature F01 may be provided on the pressing block 401, where the two holes are aligned, so as to ensure the reliability of the compressed and extended state of the spring during pressing, and fig. 4d is the final closed state of the snap structure 307 after the assembly is completed.

When the stopper 406 rotates along the closing direction with the pressing block 401 about the bolt 402 as the central axis, the feature protrusion F04 on the pressing block 401 as shown in fig. 4h slides into the feature groove F02 of the fixing seat 403 as shown in fig. 4e along with the rotation, and when sliding into the feature groove F02, the whole structure just reaches the final closing state, and simultaneously locks the cover mechanism, so as to avoid shaking of the cover mechanism.

When opening is required, as shown in fig. 4g, the pressing block 401 is first pressed until the characteristic protrusion F04 of the pressing block 401 completely leaves the characteristic groove F02 to reach the state shown in fig. 4h, i.e., the stopper 406 is pushed to rotate in the direction of the open state (opposite to the direction of the closed state) until the open state is reached, as shown in fig. 4 e. In addition, as shown in fig. 4F, the feature F03 is a simple guiding structure, and is locked into a feature sliding groove (not shown) of the stop block 406 through the end position of the bolt 405, so as to prevent the stop block from shaking substantially along the axial direction of the bolt 405, and enhance the stability and reliability of the structure. The clasp also includes two pulleys 404, as can be seen in fig. 3b, the cable, after advancing along the D1 position, will first touch the left pulley as shown in fig. 4a in clasp 307 and then touch the right pulley as it will pass through D2.

In one embodiment, as shown in fig. 5a-5e, the portable locking mechanism comprises an upper housing 501, a pressing plate 502, a rotating shaft 503, a sliding block 504, a lower housing 504, and a spring; the pressing plate 502, the rotating shaft 503 and the sliding block 504 are arranged between the upper shell 501 and the lower shell 504, the pressing plate 502 is rotatably connected with the sliding block 504 through the rotating shaft 503, the pressing plate 502 can rotate around the rotating shaft 503, and the end of the rotating direction is provided with an end position which is limited by the sliding block 504. Two ends of the spring are respectively arranged in the mounting hole of the sliding block 504 and the mounting hole of the lower shell 504; one end of the slide block 504 is used to lock the battery in a state where the pressing plate 502 is not pressed; when the pressing plate 502 is pressed to the pressing end position and the pressing plate 502 is pushed to the pushing end position, the locking of one end of the slide block 504 to the battery is released.

The portable locking mechanism is used for locking the battery 106, preventing the battery 106 from falling, has a pressing direction and a rebound direction thereof and a pushing direction and an extremely rebound direction, the pressing direction has a terminal position, the pushing direction also has a terminal position, the battery can be loosened after the battery is pressed to the terminal position and pushed to the terminal position, and the battery can be locked after the battery is released and then the battery enters the rebound direction.

FIG. 5c shows the portable locking mechanism 112 in an initial state (i.e., battery locked state), the upper case 501 is removed to show the state of FIG. 5d, at which time the finger presses the pressing block 501 to the end position in the rotation direction, then the sliding block 504 slides to a designated position along the compression direction of the spring, the designated position can be determined by the operator himself, at which time the portable locking mechanism 112 reaches the state of FIG. 5e, expands to an external state, reaches the state of FIG. 5a (i.e., the open state), and the diagram F05 shows the state of the locking mechanism 112 opening the battery 106, at which time the battery 106 can be removed, and the state of FIG. 5c can be reached by releasing the hand; when the battery needs to be locked again, the battery is locked by pressing and sliding again, then the battery is inserted, and finally the battery can be locked by loosening hands. The portable locking structure is simple, the operation is convenient, and the reliability is high.

In one embodiment, as shown in fig. 6, heat generated in operation is mainly conducted and dispersed by virtue of the shell and the plate mechanism, the heat dissipation capability is further increased by the heat dissipation structure 109, a large number of heat dissipation windows in the form of oblong through holes are added into the heat dissipation structure 109, and when heat generated by the internal structure is conducted to the heat dissipation structure, the heat dissipation capability is greatly improved due to the larger contact area with air, so that heat dissipation is faster, and the stability and the safety and the reliability of the operation of the internal structure are ensured.

The portable lifter in the embodiment can improve the safety and the working efficiency of working by using the portable lifter, and reduce the labor intensity and the risk; the portable elevator control device has the advantages of improving the control convenience and sensitivity of the portable elevator, along with simple structure, convenient use and high reliability.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, so that the same or similar parts between the embodiments are mutually referred to. For system embodiments, the description is relatively simple as it essentially corresponds to method embodiments, and reference should be made to the description of method embodiments for relevant points.

The block diagrams of the devices, apparatuses, devices, systems referred to in the present utility model are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatus, devices, and systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.

The previous description of the inventive aspects is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these aspects, and the like, will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features herein.

Claims (10)

1. A portable elevator, comprising:

the power drive system, the battery, the rope grab and the user operation device; the power drive system includes: an electric motor, a drive shaft device, and a controller; the battery is used for providing electric energy for the motor and the controller; the rope grabbing device is of a roller structure, ropes are wound on the outer surface of the rope grabbing device, and two ends of each rope are positioned outside the portable lifter; an output shaft of the electric engine is connected with a center shaft of the rope grab through a driving shaft device and is used for driving the rope grab to rotate; in a state that the rope grab rotates, the rope grab drives the rope to move in a first moving direction or a second moving direction so as to enable the portable lifter to ascend or descend along the rope;

the user operation device includes: a handle rotatable in a first rotational direction and a second rotational direction and a rotation detection device; the rotation detection device is connected with the controller and is used for generating first rotation information and second rotation information of the handle; when the handle rotates between the intermediate position and the first end position and in a first rotation direction, the rotation detection device sends first rotation information to the controller, and the controller controls the output shaft of the electric engine to rotate in the first rotation direction and controls the rotation speed of the output shaft of the electric engine based on the first rotation information; the rotation detecting device transmits second rotation information to the controller when the handle rotates in a second rotation direction between the intermediate position and the second end position, and the controller controls the output shaft of the electric motor to rotate in the second rotation direction and controls the rotation speed of the output shaft of the electric motor based on the second rotation information.

2. The portable elevator according to claim 1, comprising:

a manual engine operating member; the engine manual operation member includes: a spring plate device; under the condition that the band-type brake mechanism carries out band-type brake on the motor, the band-type brake mechanism is carried out band-type brake releasing operation by pushing the elastic sheet device, and the opening and closing degree of the band-type brake mechanism is controlled by controlling the stroke of pushing the elastic sheet device.

3. The portable elevator according to claim 1, comprising:

an emergency stop switch; the emergency stop switch is electrically connected with the controller and is used for sending a stop operation instruction to the controller so that the controller controls the output shaft of the electric engine to stop rotating according to the stop operation instruction;

a power button switch; the power button switch is used for switching on and off an electric energy transmission line between the battery and the motor;

a wireless receiving device; the wireless receiving device is electrically connected with the controller and is used for sending a remote control instruction sent by the received remote controller to the controller so that the controller controls the motor engine based on the remote control instruction.

4. The portable elevator according to claim 1, wherein,

the drive shaft device comprises a speed reducer device; the two ends of the speed reducer device are respectively connected with the output shaft of the motor engine and the central shaft of the rope grab, wherein the connection mode of the speed reducer device and the central shaft of the rope grab comprises the following steps: a key connection;

a U-shaped groove or a V-shaped groove is formed in the end part of the rope grab, and the surface of the U-shaped groove or the surface of the V-shaped groove are in contact with the rope; the surface of the U-shaped groove or the V-shaped groove is provided with a protruding structure for increasing friction force between the rope and the surface of the U-shaped groove or the V-shaped groove.

5. The portable elevator according to claim 1, wherein,

the rotation detection device includes: the micro-switch comprises a connecting piece, a micro-switch and an angle sensor comprising a permanent magnet; the micro switch and the angle sensor are electrically connected with the controller; the angle sensor and the connecting piece are arranged at one end of the handle; when the handle rotates to a preset middle position, the protrusion on the connecting piece presses on the pulley of the micro switch so as to enable the micro switch to be in a closed state; when the handle is rotated to enable the protrusion on the connecting piece to leave the pulley of the micro switch, the micro switch is in an open state;

wherein the first rotation information includes: the direction and speed of the handle rotating in the first rotating direction between the middle position and the first end position and the information of whether the micro switch is in an open state or not, which are acquired by the angle sensor; the second rotation information includes: the direction and speed of rotation of the handle between the intermediate position and the second end position and in the second rotational direction, and information whether the micro switch is in an open state, which are acquired by the angle sensor.

6. The portable elevator according to claim 2, wherein,

the power driving system and the rope grab are arranged in the elevator shell; an annular groove for installing a battery is formed in the lower part of the elevator shell, and the annular groove is connected with one end of the battery in a pluggable fit manner; the handle is arranged at the side part of the elevator shell; the engine manual operation member is mounted on the top of the elevator housing; the elevator shell is provided with a heat radiation structure, and the heat radiation structure comprises a plurality of oblong heat radiation through holes for radiating heat.

7. The portable elevator according to claim 6, comprising:

a portable locking mechanism; the portable locking mechanism is arranged at the side part of the elevator shell and used for locking the battery and preventing the battery from falling off; the portable locking mechanism includes: the device comprises an upper shell, a pressing plate, a rotating shaft, a sliding block, a lower shell and a spring, wherein the pressing plate, the rotating shaft and the sliding block are arranged between the upper shell and the lower shell, the pressing plate is rotatably connected with the sliding block through the rotating shaft, and two ends of the spring are respectively arranged in a mounting hole of the sliding block and a mounting hole of the lower shell; one end of the sliding block is used for locking the battery in a state that the pressing plate is not pressed; when the pressing plate is pressed to the pressing end position and pushed to the pushing end position, the locking of one end of the sliding block to the battery is released.

8. The portable elevator according to claim 6, comprising:

a plate mechanism; the plate mechanism is arranged at the side part of the elevator shell and comprises a cover plate mechanism; the cover plate mechanism comprises a cover plate and a pin shaft; the cover plate is hinged with the fixed plate of the plate mechanism through the pin shaft and is used for shielding the rope grab; the plate type mechanism comprises a buckle structure, the locking of the cover plate is released when the buckle structure is in an open state, and the locking of the cover plate is realized when the buckle structure is in a closed state; the clamping structure comprises a first pulley and a second pulley; one end of the rope penetrates into the buckle structure, enters the rope grabbing device after bypassing the first pulley, and penetrates out of the buckle structure after bypassing the second pulley after winding the rope grabbing device.

9. The portable elevator according to claim 8, wherein,

the plate mechanism includes: the safety lock catch is used for being connected with a safety belt lock catch of an operator;

the plate mechanism includes: and the installation fixing plate is provided with at least one anchoring point.

10. The portable elevator according to claim 8, wherein,

at least one wear pad is arranged on the surface of the plate mechanism and the surface of the elevator shell, wherein the wear pad comprises the following materials: rubber;

two connecting pieces are arranged on the top of the elevator shell, and mounting holes are arranged on the connecting pieces and used for penetrating the hanging strips.