CN112225052A - Energy-concerving and environment-protective elevator elevating system - Google Patents
Energy-concerving and environment-protective elevator elevating system Download PDFInfo
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- CN112225052A CN112225052A CN202010954250.4A CN202010954250A CN112225052A CN 112225052 A CN112225052 A CN 112225052A CN 202010954250 A CN202010954250 A CN 202010954250A CN 112225052 A CN112225052 A CN 112225052A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses an energy-saving and environment-friendly elevator lifting mechanism, and relates to the technical field of elevators; the problem that the goods elevator is frequently used in the construction stage and the gravitational potential energy of the balancing weight is wasted is solved; specifically including two parallel arrangement's spacing track, two be provided with the counterweight between the spacing track, and the middle part of counterweight is provided with the mounting groove, the equal fixed mounting in both ends of mounting groove has the link, two sliding connection has the peg between the inside of link, and the top fixed mounting of peg has string portion. When the descending speed of the goods shelf with a fault is too high, the displacement distance between the counterweight and the bolt rod is increased due to the inertia effect, the mounting frames on the two sides are extruded under the action of the pull rod, so that the friction plates are in surface contact with the limiting track, the pushing effect of the pull rod is further expanded due to the increase of the resistance, the self-locking friction effect is achieved, the descending speed of the goods shelf of the elevator is reduced, and the use safety of the goods shelf elevator is improved.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an energy-saving and environment-friendly elevator lifting mechanism.
Background
The elevator is a permanent transportation device which serves a plurality of specific floors in a building, a car of the elevator runs on at least two rows of rigid rails which are vertical to the horizontal plane or have an inclination angle smaller than 15 degrees with a plumb line, the elevator mainly comprises a traction machine (winch), guide rails, a counterweight device, safety devices (such as a speed limiter, safety tongs, a buffer and the like), a signal control system, the car, a hall door and the like, two ends of a traction rope are respectively connected with the car and the counterweight and wound on a traction sheave and a guide wheel, a traction motor drives the traction sheave to rotate after the speed of the traction motor is changed through a speed reducer, and the lifting motion of the car and the counterweight is realized by virtue of traction force generated by friction between the traction rope and the traction sheave, so.
Can build the elevator when high-rise building construction and be used for the transport work of material, this kind of elevator utilizes simple balancing weight to act as counterweight when building, can make the weight difference of goods shelves and balancing weight keep within the quota at elevator work, guarantees dragging transmission of elevator normal, belongs to elevator elevating system's important component, and the goods lift is used frequently at the construction stage, and the gravitational potential energy of balancing weight is wasted by vain, causes the power consumption of elevator big.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an energy-saving and environment-friendly elevator lifting mechanism.
The invention provides an energy-saving and environment-friendly elevator lifting mechanism which comprises two limiting rails arranged in parallel, wherein a counterweight is arranged between the two limiting rails, the middle part of the counterweight is provided with a mounting groove, two ends of the mounting groove are both fixedly provided with connecting frames, a bolt rod is connected between the insides of the two connecting frames in a sliding manner, the top end of the bolt rod is fixedly provided with a rope hanging part, the top and the bottom of the outer side of the bolt rod are both hinged with a plurality of pull rods, an L-shaped movable frame is hinged between the other end of each pull rod and the end part of each connecting frame, the end part of each movable frame is hinged with a mounting frame, the two ends inside the mounting frame are both fixedly provided with a micro generator set, the end part of an input shaft of the micro generator set is connected with the inner wall of the limiting rails in a rolling manner through a roller wheel, the middle part of the side, and the inside fixed mounting of rectangular channel has the battery with micro generator set electric connection, the middle part fixed mounting of gag lever post has the hoop, and the equal fixed mounting in bottom and the top of hoop has the spring, the equal fixed mounting in inside both ends of mounting groove has the pull ring, and the other end and the pull ring of spring are connected firmly.
Preferably, the both ends of mounting bracket all are provided with the installation department that the section is C type structure, and micro generator set installs in the inside of installation department.
Preferably, the mounting bracket further includes an elastic portion disposed at two ends of the mounting bracket, the cross section of the elastic portion having a V-shaped structure, and the elastic portion is located between the mounting portions.
Preferably, a plurality of obliquely distributed streak grooves are formed in the side surface of the friction plate, and a plurality of friction concave holes are distributed among the streak grooves.
Preferably, both ends of the friction plate are provided with extension parts of a trapezoidal structure, and the extension parts are embedded into the mounting frame.
Preferably, both ends of the weight member are provided with limiting hole grooves, two tension springs are fixedly mounted inside the limiting hole grooves, and an auxiliary retarding mechanism is slidably mounted inside the limiting hole grooves through the tension springs.
Preferably, the two sides of the hoop are provided with squeezing parts with wedge-shaped structures, and the end part of the auxiliary speed reducing mechanism is provided with a squeezing part in sliding connection with the squeezing parts.
Preferably, supplementary retarding mechanism still includes the telescopic link of pegging graft in extension spring inside, and the one end of telescopic link with push the portion of extruding and be connected firmly, fixed mounting has vice friction disc between the other end of telescopic link, the structure of vice friction disc is the same with the friction disc structure.
Preferably, the bottom end of the bolt rod is fixedly provided with a buffer column.
Preferably, the equal fixed mounting in both sides of counterweight has a plurality of cushions, and fixed mounting has the protection curb plate between the tip of cushion, and the bar hole has all been seted up in the side four corners of protection curb plate, and the cylinder wheel is installed through the bearing in the inside in bar hole, and the side and the spacing track outside contact of cylinder wheel.
In the invention, the traditional goods lift counterweight device is replaced by the device to lift between two limit tracks, the bolt rod is elastically connected with the counterweight piece through the spring, the micro generator set can be attached to the inner walls of the limit tracks under the action of the pull rod during lifting movement, the gravitational potential energy is converted into electric power during descending, the electric power is stored in the storage battery and used as an elevator for lighting and power supply during use, energy is saved, environment is protected, resistance is provided by attaching the two sides and reverse power generation is performed when the goods shelf of the elevator descends, the descending speed of the goods shelf is convenient to control, when the descending speed of the failed goods shelf is too high, the displacement distance between the counterweight piece and the bolt rod is increased due to the inertia effect, the mounting frames at the two sides are extruded by the action of the pull rod, so that the friction plates are in contact with the surfaces of the limit tracks, the pushing effect of, thereby reducing the descending speed of the goods shelf of the elevator and improving the use safety of the goods shelf elevator;
the micro generator set is arranged in the mounting part, when the weight part moves up and down, effective protection can be provided for the micro generator set, the micro generator set is prevented from being influenced by dust in building construction, the service life of the micro generator set is prolonged, good elasticity is given to the two ends of the mounting frame through the arrangement of the elastic part, the micro generator set is more tightly attached to the limiting rail in normal movement, the power generation efficiency is improved, meanwhile, the stress deformation range of the two ends is enlarged when the mounting frame is stressed, the mounting part shrinks when an accident happens, and protection is provided for the micro generator set;
through the setting of strip trace groove and friction shrinkage pool, frictional force when increasing friction disc and spacing track contact, and when receiving the friction, the strip trace groove that the slope distributes is when receiving the friction, can in time cool down, and the sediment powder that drops when the friction disc rubs, can fall along the strip trace groove, the sediment powder influence slow speed effect of avoiding dropping, the security is improved, setting through the extension, when the friction disc atress, the inside of its both ends embedding mounting bracket, produce when avoiding being heated and stick up the limit phenomenon, stability when improving the friction disc and acting on.
Drawings
FIG. 1 is a schematic cross-sectional view of an energy-saving and environment-friendly elevator lifting mechanism provided by the invention;
FIG. 2 is a schematic structural view of an installation frame of the energy-saving and environment-friendly elevator lifting mechanism provided by the invention;
FIG. 3 is a schematic structural view of an auxiliary retarding mechanism of the energy-saving and environment-friendly elevator lifting mechanism provided by the invention;
fig. 4 is a schematic view of a partial top view of an elevator lifting mechanism for energy saving and environmental protection according to the present invention;
fig. 5 is a schematic structural view of a protective side plate of the energy-saving and environment-friendly elevator lifting mechanism provided by the invention.
In the figure: the device comprises a mounting frame 1, an elastic part 101, a mounting part 102, a friction plate 2, a trace groove 201, an extending part 202, a micro generator set 3, a bolt rod 4, a counterweight 5, an auxiliary speed-reducing mechanism 6, a pushing part 601, a telescopic rod 602, a pushing part 603, a tension spring 7, a limiting rail 8, a rope hanging part 9, a mounting groove 10, a spring 11, a hoop 12, a pull ring 13, a connecting frame 14, a storage battery 15, a movable frame 16, a pull rod 17, a buffer column 18, a protective side plate 19, an elastic cushion 20 and a roller wheel 21.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, an energy-saving and environment-friendly elevator lifting mechanism comprises two limiting rails 8 arranged in parallel, a weight 5 is arranged between the two limiting rails 8, a mounting groove 10 is arranged in the middle of the weight 5, connecting frames 14 are fixedly arranged at both ends of the mounting groove 10, a bolt 4 is slidably connected between the insides of the two connecting frames 14, a rope hanging part 9 is fixedly arranged at the top end of the bolt 4, a plurality of pull rods 17 are hinged at the top and bottom of the outer side of the bolt 4, a movable frame 16 of an L-shaped structure is hinged between the other end of each pull rod 17 and the end of each connecting frame 14, an installation frame 1 is hinged at the end of each movable frame 16, a micro-generator set 3 is fixedly arranged at both ends of the inside of the installation frame 1, the end part of an input shaft of the micro-generator set 3 is connected with the inner wall of the limiting rails 8 in a rolling manner, rectangular grooves are formed in two sides of the counterweight piece 5, a storage battery 15 electrically connected with the micro generator set 3 is fixedly installed inside each rectangular groove, a hoop 12 is fixedly installed in the middle of the bolt rod 4, springs 11 are fixedly installed at the bottom and the top of the hoop 12, pull rings 13 are fixedly installed at two ends inside the installation groove 10, the other ends of the springs 11 are stably connected with the pull rings 13, the conventional goods lift counterweight device is replaced by the device and is lifted between the two limiting rails 8, the bolt rod 4 is elastically connected with the counterweight piece 5 through the springs 11, the micro generator set 3 can be attached to the inner walls of the limiting rails 8 under the action of the pull rod 17 during lifting movement, gravitational potential energy is converted into electric power during descending, the electric power is stored in the storage battery 15 and used for lighting and power supply during use of an elevator, energy conservation and environmental protection are achieved, and when a goods shelf of the, the both sides laminating provides the resistance and carries out reverse electricity generation, be convenient for control goods shelves the falling speed, when the goods shelves falling speed that breaks down is too fast, counterweight 5 is because the displacement interval between inertia effect and the pin 4 increases, and then the mounting bracket 1 of effect extrusion both sides through pull rod 17 makes friction disc 2 and 8 surface contact of spacing track, the resistance increases the pushing effect that further enlarges pull rod 17, reach the frictional effect of auto-lock, and then reduce the falling speed of elevator goods shelves, improve goods shelves elevator's safety in utilization.
In the invention, the two ends of the mounting rack 1 are both provided with the mounting parts 102 with the C-shaped sections, the micro generator set 3 is mounted inside the mounting parts 102, and the micro generator set 3 is mounted inside the mounting parts 102, so that when the counterweight part 5 moves up and down, the micro generator set 3 can be effectively protected, the influence of dust in building construction can be avoided, and the service life of the micro generator set is prolonged.
The strip trace groove 201 that a plurality of slopes distribute is seted up to the side of friction disc 2, and it has a plurality of friction shrinkage pools to distribute between strip trace groove 201, through the setting of strip trace groove 201 and friction shrinkage pool, frictional force when increasing friction disc 2 and spacing track 8 contact, and when receiving the friction, the strip trace groove 201 that the slope distributes is when receiving the friction, can in time cool down, and the sediment powder that drops when friction disc 2 rubs, can be in the same direction as strip trace groove 201 whereabouts, the sediment powder influence slow-down effect of avoiding dropping, the security improves.
Both ends of friction disc 2 all are provided with trapezium structure's extension 202, and extension 202 imbeds to the inside of mounting bracket 1, through the setting of extension 202, when the atress of friction disc 2, its both ends imbed the inside of mounting bracket 1, produce when avoiding being heated and stick up the limit phenomenon, improve the stability when friction disc 2 acts on.
Both ends of the counterweight 5 are provided with limiting hole grooves, two tension springs 7 are fixedly arranged inside the limiting hole grooves, and an auxiliary retarding mechanism 6 is arranged inside the limiting hole grooves in a sliding mode through the tension springs 7.
Both sides of hoop 12 all are provided with the extrusion portion of wedge structure, the tip of supplementary retarder mechanism 6 is provided with the portion 601 that pushes away with extrusion portion sliding connection, when the stock 4 atress is too big in the twinkling of an eye, hoop 12 rises fast will push away the portion 601 and push to both sides, and then drive supplementary retarder mechanism 6 to both sides extension and spacing track 8 surface contact, reach speed reduction effect in the twinkling of an eye, the security improves, when speed reduction obtains control, through the recovery effect of spring 11, make and push away portion 601 and extrusion portion and break away from, and then make supplementary retarder mechanism 6 reset.
The auxiliary speed reducing mechanism 6 further comprises a telescopic rod 602 inserted into the tension spring 7, one end of the telescopic rod 602 is stably connected with the pushing portion 601, an auxiliary friction plate 603 is fixedly mounted between the other end of the telescopic rod 602, the structure of the auxiliary friction plate 603 is the same as that of the friction plate 2, the pushing portion 601 is stressed to drive the telescopic rod 602 to be linked, and then the auxiliary friction plate 603 and the limiting track 8 are subjected to surface friction speed reduction.
The bottom fixed mounting of peg 4 has buffering post 18, and when weight 5 descends, through the effect of buffering post 18, receives impact deformation to damage when avoiding peg 4 to descend.
In the embodiment, when the device is used, the traditional goods lift counterweight device is replaced by the device, the goods lift counterweight device is lifted between two limiting rails 8, the bolt rod 4 is elastically connected with the counterweight part 5 through the spring 11, the micro generator set 3 can be attached to the inner walls of the limiting rails 8 under the action of the pull rod 17 during lifting movement, gravitational potential energy is converted into electric power during descending, the electric power is stored in the storage battery 15 and used for lighting and power supply during use of an elevator, energy is saved, the environment is protected, resistance is provided and reverse power generation is performed during descending of an elevator goods shelf, the descending speed of the goods shelf is convenient to control, when the descending speed of the failed goods shelf is too high, the displacement distance between the counterweight part 5 and the bolt rod 4 due to inertia effect is increased, the mounting frames 1 on two sides are extruded through the action of the pull rod 17, the friction plates 2 are in surface contact with the limiting rails 8, the resistance is, the self-locking friction effect is achieved, the descending speed of the elevator goods shelf is further reduced, and the use safety of the goods shelf elevator is improved.
Example 2
Referring to fig. 1-5, in this embodiment, for example 1, a plurality of elastic pads 20 are fixedly mounted on both sides of a counterweight 5, a protective side plate 19 is fixedly mounted between end portions of the elastic pads 20, strip-shaped holes are formed in four corners of a side surface of the protective side plate 19, a roller wheel 21 is mounted inside the strip-shaped hole through a bearing, and a side surface of the roller wheel 21 contacts with an outer side of a limiting rail 8.
This embodiment is when using, and when the weight 5 moved between two spacing tracks 8, the protection curb plate 19 of both sides can carry out the phenomenon to its motion trail, inject the weight 5 between spacing track 8, avoid appearing rocking, skew phenomenon when atress in the twinkling of an eye, improve the stability in the motion process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An energy-saving and environment-friendly elevator lifting mechanism comprises two parallel limiting rails (8), wherein a weight (5) is arranged between the two limiting rails (8), a mounting groove (10) is formed in the middle of the weight (5), connecting frames (14) are fixedly mounted at two ends of the mounting groove (10), the elevator lifting mechanism is characterized in that a bolt rod (4) is slidably connected between the insides of the two connecting frames (14), a rope hanging portion (9) is fixedly mounted at the top end of the bolt rod (4), a plurality of pull rods (17) are hinged to the top and the bottom of the outer side of the bolt rod (4), a movable frame (16) of an L-shaped structure is hinged between the other end of each pull rod (17) and the end of each connecting frame (14), a mounting frame (1) is hinged to the end of each movable frame (16), and a micro generator set (3) is fixedly mounted at two ends of the inside of each mounting frame (1), the input shaft tip of micro generator set (3) passes through gyro wheel and spacing track (8) inner wall roll connection, the side middle part fixed mounting of mounting bracket (1) has friction disc (2), the rectangular channel has all been seted up to the both sides of counterweight (5), and the inside fixed mounting of rectangular channel has battery (15) with micro generator set (3) electric connection, the middle part fixed mounting of tie rod (4) has hoop (12), and the equal fixed mounting in bottom and the top of hoop (12) has spring (11), the equal fixed mounting in inside both ends of mounting groove (10) has pull ring (13), and the other end and pull ring (13) of spring (11) are connected firmly.
2. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that mounting portions (102) with C-shaped sections are arranged at two ends of the mounting frame (1), and the micro generator set (3) is mounted inside the mounting portions (102).
3. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that the mounting rack (1) further comprises elastic parts (101) which are arranged at two ends of the elevator lifting mechanism and have V-shaped sections, and the elastic parts (101) are located between the mounting parts (102).
4. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that a plurality of obliquely distributed strip mark grooves (201) are formed in the side surface of the friction plate (2), and a plurality of friction concave holes are distributed among the strip mark grooves (201).
5. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that the two ends of the friction plate (2) are respectively provided with an extension part (202) with a trapezoid structure, and the extension parts (202) are embedded into the mounting frame (1).
6. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that two ends of the counterweight (5) are respectively provided with a limiting hole groove, two tension springs (7) are fixedly mounted inside the limiting hole grooves, and an auxiliary retarding mechanism (6) is slidably mounted inside the limiting hole grooves through the tension springs (7).
7. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that the two sides of the hoop (12) are provided with squeezing parts with wedge structures, and the end part of the auxiliary retarding mechanism (6) is provided with a squeezing part (601) in sliding connection with the squeezing parts.
8. The energy-saving and environment-friendly elevator lifting mechanism is characterized in that the auxiliary retarding mechanism (6) further comprises a telescopic rod (602) inserted into the tension spring (7), one end of the telescopic rod (602) is stably connected with the pushing part (601), an auxiliary friction plate (603) is fixedly installed between the other end of the telescopic rod (602), and the structure of the auxiliary friction plate (603) is the same as that of the friction plate (2).
9. An energy-saving and environment-friendly elevator lifting mechanism as claimed in claim 1, characterized in that the bottom end of the bolt rod (4) is fixedly provided with a buffer column (18).
10. The energy-saving and environment-friendly elevator lifting mechanism according to claim 1, wherein a plurality of elastic pads (20) are fixedly mounted on both sides of the counterweight (5), a protective side plate (19) is fixedly mounted between the end portions of the elastic pads (20), strip-shaped holes are formed in four corners of the side surface of the protective side plate (19), a roller wheel (21) is mounted inside each strip-shaped hole through a bearing, and the side surface of the roller wheel (21) is in contact with the outer side of the limiting rail (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010954250.4A CN112225052A (en) | 2020-09-11 | 2020-09-11 | Energy-concerving and environment-protective elevator elevating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010954250.4A CN112225052A (en) | 2020-09-11 | 2020-09-11 | Energy-concerving and environment-protective elevator elevating system |
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| CN202010954250.4A Pending CN112225052A (en) | 2020-09-11 | 2020-09-11 | Energy-concerving and environment-protective elevator elevating system |
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| CN112811274A (en) * | 2021-04-16 | 2021-05-18 | 广东永通起重机械股份有限公司 | Control method and device for positioning lifting equipment, medium and crane |
| CN112994203A (en) * | 2021-04-23 | 2021-06-18 | 莱州汇金矿业投资有限公司 | Cage up-down friction power generation charging storage battery |
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| CN113998360A (en) * | 2021-11-08 | 2022-02-01 | 安徽瑞佑自动化科技有限公司 | A lifting machine for three-dimensional warehouse of line of shipping |
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Application publication date: 20210115 |