CN115010053A

CN115010053A - Loading and unloading vehicle for elevator

Info

Publication number: CN115010053A
Application number: CN202210631492.9A
Authority: CN
Inventors: 王丹; 吴林志
Original assignee: Hitachi Elevator China Co Ltd; Hitachi Elevator Shanghai Co Ltd
Current assignee: Hitachi Elevator China Co Ltd; Hitachi Elevator Shanghai Co Ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-06

Abstract

The invention discloses a loading and unloading vehicle for an elevator, which comprises an object stage, a counterweight table and handrails. The object stage and the handrails are respectively arranged at two opposite ends of the counterweight table, and universal wheels are arranged below the counterweight table. The objective table can move up and down relative to the counterweight table and is used for placing objects to be loaded and unloaded. The counterweight table is used for placing a counterweight block so as to keep the lift truck balanced. According to the elevator loading and unloading truck, the universal wheels are arranged on the counterweight table, the loading table is positioned at the front ends of the universal wheels, and the loading table can move up and down relative to the counterweight table, so that when an object to be loaded and unloaded enters and exits the car, the whole elevator loading and unloading truck can not apply large pressure on the sill and the car frame, excessive inclination of the car due to unequal weight distribution in the process of entering and exiting the object to be loaded and unloaded is avoided, stress components such as the sill and the guide shoes are damaged, and the service performance and service life of the elevator and the car thereof are improved. In addition, as the object to be loaded and unloaded is placed at one end of the loading and unloading vehicle for the elevator and is easy to turn over, the invention is provided with the counterweight table, so that the loading and unloading vehicle for the elevator can be in a balanced state.

Description

Loading and unloading truck for elevator

Technical Field

The invention relates to the technical field of loading and unloading equipment, in particular to a loading and unloading vehicle for an elevator.

Background

At present, when people load and unload heavy objects in an elevator car, a cart is often adopted to be directly pushed in and pushed out, but when the weight of the loaded and unloaded heavy objects is greater than one fourth of the rated load of the elevator and does not exceed the rated load, the problem often occurs:

1. the cart is pushed in and pushed out directly, the sill and the car frame are easy to deform under stress, and the deformation of the elevator door and the displacement of the guide rail can be caused.

2. The frequent adoption of the mode that the cart is directly pushed in and out can cause the car frame component to exceed the fatigue limit due to concentrated load, thereby losing the service life of the elevator, having more maintenance times and high cost.

3. The trolley can only slowly enter the lift car, and if the entering speed is too high, unbalance loading is easily caused, so that the stretching of the steel wire rope is too large (more than 50 mm), a leveling error is caused, and the elevator stops running.

Therefore, how to improve the technical defects in the prior art is always a problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a loading and unloading vehicle for an elevator, which can not directly apply pressure to an elevator car when loading and unloading objects to be loaded and unloaded, thereby avoiding the stress deformation of a sill and a car frame and prolonging the service life of the elevator.

The technical scheme provided by the invention is as follows:

a lift truck for an elevator, comprising:

an object stage, a counterweight table and a handrail;

the object stage and the handrails are respectively arranged at two opposite ends of the counterweight table, and universal wheels are arranged below the counterweight table;

the object stage can move up and down relative to the counterweight stage and is used for placing objects to be loaded and unloaded;

the counterweight table is used for placing a counterweight block so as to keep the elevator loading and unloading truck balanced.

In some embodiments, the counterweight table is away from one side of the universal wheel, and one end of the counterweight table facing the object table is provided with two upright posts which are symmetrically distributed in two opposite side areas of the counterweight table; and

the objective table is kept away from one side of universal wheel, and the orientation the one end of counter weight platform is equipped with a butt joint board, the butt joint board be equipped with the stand docks the complex spout mutually, makes the objective table is followed stand length direction reciprocates.

In some embodiments, the number of the sliding grooves is one, the sliding grooves are disposed on one side of the butt plate facing the counterweight table, and the two upright posts are respectively located on two side edges of the sliding groove.

In some embodiments, the elevator loading/unloading vehicle further includes:

and the hoisting device is fixed on the counterweight table and used for driving the objective table to move up and down along the length direction of the upright column.

In some embodiments, the lifting device comprises a lifting assembly, a resilient member, and a tension rod;

the hoisting assembly is fixed on one side, far away from the universal wheels, of the counterweight table, faces one end of the objective table and is positioned in the center of the two upright columns, and the sliding chute extends towards the hoisting assembly to form a first abutting table which abuts against one end, far away from the counterweight table, of the hoisting assembly;

a fixed support is arranged on one side, far away from the universal wheels, of the counterweight table and close to the hoisting assembly area, and is used for fixing the elastic piece;

the pull rod is fixed on the counterweight table, a second butting table is arranged at one end of the pull rod and butts against the elastic piece, and one end, far away from the butting table, of the pull rod extends to one end, provided with the handrail, of the counterweight table;

when a user operates the pull rod to press down, the hoisting assembly drives the objective table to ascend;

when a user operates the pull rod to lift up, the hoisting assembly drives the objective table to descend.

In some embodiments, a pedal is provided at an end of the pull rod away from the abutment table.

In some embodiments, the weight station includes a main board and a conveyor;

the universal wheel is arranged on the main board, a fixing groove for fixing the conveying device is formed in one side, far away from the universal wheel, of the main board, and the conveying device is used for driving the balancing weight to move along the length direction of the main board, so that the elevator loading and unloading truck is kept balanced.

In some embodiments, the conveying device comprises a driving wheel, a driven wheel, a transmission chain and a conveying belt;

the driving wheel and the driven wheel are both rotationally fixed on the fixing groove through a rotating shaft, and the transmission chain is sleeved on the driving wheel and the driven wheel so as to enable the driven wheel and the driving wheel to synchronously rotate;

the transmission belt is sleeved on the transmission chain and used for driving the balancing weight and the transmission chain to move synchronously.

In some embodiments, a handle is disposed through one end of the rotating shaft of the driving wheel, and a user rotates the handle to drive the driving wheel to rotate, so as to drive the weight block to move along the length direction of the main board.

In some embodiments, the object stage comprises two supporting cantilevers and a connecting plate connecting the two supporting cantilevers, wherein the connecting plate is used for movably fixing the two supporting cantilevers to the counterweight stage;

the lower end surfaces of the two supporting cantilevers are obliquely arranged, and one end of the supporting cantilever, which is far away from the butt joint plate, is higher than one end of the supporting cantilever, which is fixed on the butt joint plate.

The invention has the technical effects that:

1. in this patent, locate the counter weight platform and make the objective table be located the universal wheel front end through locating the universal wheel, and the objective table counter weight platform reciprocates relatively, when making and treat that loading and unloading thing business turn over car, great pressure can not be applyed to sill and sedan-chair frame to whole loading and unloading car for the elevator, avoid the car at the in-process of treating that loading and unloading thing business turn over, excessive slope because of the unequal distribution of weight, damage sill, lead stress parts such as boots, the performance and the life-span of elevator and car have been improved. In addition, as the object to be loaded and unloaded is placed at one end of the loading and unloading vehicle for the elevator and is easy to turn over, the invention is provided with the counterweight table, so that the loading and unloading vehicle for the elevator can be in a balanced state. Moreover, this patent has set up the universal wheel, has improved the mobility of loading and unloading car for the elevator greatly for the practicality of loading and unloading car for the elevator obtains promoting.

2. In this patent, the one end that butt joint platform was kept away from to the pull rod is equipped with a footboard, and the user can step on with the foot and press or lift this footboard and realize controlling jack-up subassembly, convenient operation, swift, and work efficiency improves greatly.

3. In this patent, through setting up conveyer to make the user drive conveyer operation through twist grip, thereby adjust the balancing weight and wait to unload the distance between the thing, make loading and unloading car for the elevator can be in balanced state, easy operation and convenience, the practicality is strong, and work efficiency improves greatly.

Drawings

The invention is described in further detail below with reference to the following figures and detailed description:

fig. 1 is a schematic structural view of a loading and unloading vehicle for an elevator loaded with an object to be loaded and unloaded, provided by the present invention, without entering a car;

FIG. 2 is a schematic structural view of a part of an elevator loading/unloading vehicle for loading an object to be loaded/unloaded, which is provided by the present invention, entering a car;

fig. 3 is a plan view of an elevator loading/unloading vehicle according to the present invention;

FIG. 4 is a top view of a main panel and armrest provided by the present invention;

FIG. 5 is a top view of a load station provided by the present invention;

FIG. 6 is a front view of a lifting apparatus provided by the present invention;

fig. 7 is a schematic perspective view of a conveyor provided by the present invention.

The reference numbers illustrate:

100. an object stage; 110. a support boom; 120. a butt plate; 121. a chute; 122. a first abutment stage;

200. a counterweight table; 210. a main board; 211. a universal wheel; 212. a column; 213. a fixed support; 214. fixing grooves; 220. a conveying device; 221. a driving wheel; 222. a driven wheel; 223. a drive chain; 224. a conveyor belt; 225. a rotating shaft; 226. a handle; 227. a drum;

300. a handrail;

400. loading and unloading objects;

500. a balancing weight;

600. a hoisting device; 610. a hoisting assembly; 620. an elastic member; 630. a pull rod; 631. a second abutment stage; 632. a pedal;

700. a car.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, only the parts relevant to the invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "a" means not only "only one of this but also a case of" more than one ".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and rear are used to explain the structure and movement of various components of the present invention not absolutely but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

According to an embodiment of the present invention, referring to fig. 1 to 7, an elevator truck may include a loading platform 100, a counterweight platform 200, and an armrest 300. The objective table 100 and the armrest 300 are respectively disposed at two opposite ends of the counterweight table 200, and universal wheels 211 are disposed below the counterweight table 200. The object table 100 is movable up and down with respect to the counterweight table 200 for placing the object 400 to be loaded and unloaded. The counterweight table 200 is used to place a counterweight 500 to keep the lift truck balanced.

In this embodiment, the universal wheels 211 are provided on the counterweight table 200, and the loading platform 100 is located at the front ends of the universal wheels 211, so that when the object 400 to be loaded or unloaded is in the car 700, the universal wheels 211 do not enter the car 700, thereby preventing the sill and the car frame from being deformed due to stress. In addition, the object stage 100 can move up and down relative to the counterweight table 200, so that when the object 400 to be loaded and unloaded enters the car 700, the object stage 100 can be lifted to a certain height, after the object 400 to be loaded and unloaded completely enters, the object stage 100 is lowered to a proper height and placed in the middle area of the car 700, and the whole loading and unloading vehicle for the elevator can not apply large pressure to the sill and the car frame. Meanwhile, the phenomenon that the elevator car 700 excessively inclines due to uneven distribution of weight in the process of entering and exiting the object 400 to be loaded and unloaded, so that stress parts such as a sill, a guide shoe and the like are damaged is effectively avoided, and the service performance and the service life of the elevator and the elevator car 700 are improved.

In addition, since the object 400 to be loaded or unloaded is placed at one end of the lift truck, which is likely to cause lateral tipping, the embodiment is provided with the counterweight table 200, and the counterweight 500 is placed at a suitable position on the counterweight table 200 by using the lever principle, so that the lift truck can be in a balanced state. In addition, the universal wheels 211 are arranged in the embodiment, so that the mobility of the loading and unloading vehicle for the elevator is greatly improved, and the practicability of the loading and unloading vehicle for the elevator is effectively improved. Preferably, the universal wheels 211 are four in number and are respectively disposed at four corners of the counterweight table 200. At this time, the user can grip the handle 300 to push or pull the lift truck for elevator provided in this embodiment.

Specifically, referring to fig. 1 to 4, the counterweight table 200 is provided with two upright posts 212 at one end away from the universal wheels 211 and facing the object table 100, and the two upright posts 212 are symmetrically distributed at two opposite side areas of the counterweight table 200. At this time, an abutting plate 120 is provided at one end of the stage 100 away from the universal wheels 211 and facing the counterweight table 200, and the abutting plate 120 is provided with a slide groove 121 which abuts against and engages with the column 212, so that the stage 100 moves up and down in the longitudinal direction of the column 212. In this embodiment, the upright 212 and the sliding groove 121 cooperate with each other to provide a guiding function, so that the object stage 100 can move up and down more stably.

Preferably, referring to fig. 3 or 5, the number of the sliding slots 121 is one, and the two upright posts 212 are respectively located on two side edges of the sliding slot 121 and are disposed on one side of the docking plate 120 facing the counterweight table 200. At this time, the sliding groove 121 can be matched with the two vertical columns 212, so that the object stage 100 can move up and down more stably, the weight of the object stage can be reduced to the greatest extent, light-weight production is realized, physical consumption of a user when the user uses the elevator loading and unloading vehicle provided by the embodiment is reduced, and the practicability is greatly improved.

Of course, in actual production, the number of the sliding grooves 121 can also be two, and the two sliding grooves are respectively positioned at two opposite sides of the butt plate 120. At this time, the docking plate 120 is located between the two columns 212, and also enables the object stage 100 to move up and down more smoothly along the length direction of the columns 212, which is not described herein, and can be flexibly configured according to actual needs, and all of which are within the protection scope of the present invention.

In one embodiment, referring to fig. 1-3, the lift truck further includes a lifting device 600, the lifting device 600 being secured to the counterweight table 200 for moving the object table 100 up and down along the length of the mast 212.

Specifically, referring to fig. 3 to 6, the lifting device 600 includes a lifting assembly 610, an elastic member 620, and a pulling rod 630. The lifting assembly 610 is fixed to the side of the counterweight table 200 away from the universal wheels 211 and toward the end of the object table 100, and is located at the center of the two columns 212. At this time, the sliding groove 121 extends toward the lifting element 610 to form a first abutting portion 122 abutting against an end of the lifting element 610 away from the counterweight table 200. The counterweight table 200 is provided with a fixing support 213 at a side far away from the universal wheel 211 and near the hoisting assembly 610 for fixing the elastic member 620. The pull rod 630 is fixed to the counterweight table 200, and one end of the pull rod 630 is provided with a second abutting table 631 abutting against the elastic element 620, and one end of the pull rod 630 away from the abutting table extends to one end of the counterweight table 200 provided with the armrest 300. When the user operates the pull rod 630 to press down, the lifting assembly 610 drives the object stage 100 to ascend; when the user operates the pull rod 630 to lift, the lifting assembly 610 moves the object table 100 down.

In the embodiment, the first docking station 122 is abutted against one end of the lifting element 610 far away from the counterweight table 200, so that the lifting element 610 can drive the entire object table 100 to move up and down through the first docking station 122.

Preferably, the elastic member 620 is a spring, and the pull rod 630 is automatically reset. Specifically, when the user applies pressure to the pull rod 630, the lifting assembly 610 causes the stage 100 to rise, and if the pressure disappears, the spring causes the pull rod 630 to return. In contrast, when a user applies a pulling force to the pull rod 630, the lifting assembly 610 lowers the object stage 100, and if the pulling force disappears, the pull rod 630 is reset under the action of gravity.

Further, referring to fig. 3 and 6, a pedal 632 is disposed at an end of the pull rod 630 away from the abutting table, at this time, the end of the pull rod 630 away from the abutting table is inclined toward the ground, and a user can press or lift the pedal 632 with his foot to operate the lifting assembly 610, so that the operation is convenient and fast, and the working efficiency is greatly improved.

Of course, in actual production, the end of the pull rod 630 away from the abutting table may be further provided with a grip, and in this case, the end of the pull rod 630 away from the abutting table is inclined away from the ground, and a user may grip the grip with a hand to control the lifting of the pull rod 630, so as to control the lifting assembly 610. Besides, in actual production, a driving member capable of driving the lifting assembly 610, and a button for controlling the driving member may be further provided. Thus, the user can control the lifting of the object stage 100 by pressing the button, and this embodiment is only a part of the feasible solutions, which should not be limited herein, and is within the protection scope of the present invention.

Further, referring to fig. 3 and 4, the counterweight table 200 includes a main plate 210 and a transmission device 220, in which the universal wheels 211 are disposed on the main plate 210, and the four universal wheels 211 are disposed at four corners of the main plate 210 respectively. Meanwhile, a fixing groove 214 for fixing the transmission device 220 is formed in one side of the main plate 210, which is far away from the universal wheel 211, and the transmission device 220 is used for driving the counterweight block 500 to move along the length direction of the main plate 210, so that the lift truck for the elevator keeps balance. In contrast, the two pillars 212 are disposed on a side of the main plate 210 away from the universal wheels 211 and facing one end of the stage 100.

Specifically, referring to fig. 3, 4 and 7, the conveying device 220 includes a driving wheel 221, a driven wheel 222, a transmission chain 223 and a conveying belt 224. The driving wheel 221 and the driven wheel 222 are rotatably fixed on the fixing groove 214 through a rotating shaft 225, and the driving wheel 221 and the driven wheel 222 are sleeved with a transmission chain 223, so that the driven wheel 222 and the driving wheel 221 rotate synchronously. The transmission belt is sleeved on the transmission chain 223 for driving the counterweight block 500 and the transmission chain 223 to move synchronously.

At this time, referring to fig. 3 and 7, in order to ensure smooth operation of the counterweight 500, a plurality of rollers 227 should be disposed between the driving wheel 221 and the driven wheel 222, and the distance between each two adjacent rollers 227, between the driving wheel 221 and the rollers 227, and between the driven wheel 222 and the rollers 227 is smaller. Of course, in actual production, a flat plate may be further disposed between the driving wheel 221 and the driven wheel 222, which also can ensure the stable operation of the counterweight block 500, and it is not described herein any further, and the flat plate may be flexibly disposed according to actual situations, and all are within the protection scope of the present invention.

Specifically, referring to fig. 3 and 7, a handle 226 is disposed at one end of the rotating shaft 225 penetrating through the driving wheel 221, and a user rotates the handle 226 to drive the driving wheel 221 to rotate, so as to drive the weight block 500 to move along the length direction of the main plate 210, which is beneficial for the user to adjust the position of the weight block 500 in time. When a user places the object 400 to be loaded or unloaded on the object stage 100, the counterweight 500 can be moved to a balance position by rotating the handle 226, so that the lift truck for the elevator is prevented from toppling forwards; when the user will treat that loading and unloading thing 400 takes off from objective table 100, the accessible rotates this handle 226 and removes balancing weight 500 to four universal wheel 211 intermediate positions, avoids the lift to topple over backward with the loading and unloading car, and whole adjustment convenient operation, swift and practicality are strong, have improved the work efficiency that the user loaded and unloaded thing 400 of treating greatly.

In actual production, a motor in driving connection with the driving wheel 221 and a button for controlling the operation of the motor can also be arranged. Thus, the user can control the operation by pressing the button, and the embodiment is only a part of the possible solutions, and is not limited herein, and is within the protection scope of the present invention.

In one embodiment, referring to fig. 1, 2, 3 and 5, the object stage 100 includes two support arms 110 and a connecting plate connecting the two support arms 110, wherein the connecting plate is used to movably fix the two support arms 110 to the counterweight table 200. The lower end surfaces of the two supporting cantilevers 110 are obliquely arranged, and one end of the supporting cantilevers, which is far away from the butt-joint plate 120, is higher than one end of the supporting cantilevers, which is fixed on the butt-joint plate 120. At this time, the docking plate 120 is disposed on a side of the object stage 100 away from the universal wheels 211, and an end facing the counterweight table 200 is an upper end surface of the connecting plate. Of course, in practical production, the two supporting cantilevers 110 can also be directly fixed on the docking plate 120.

In this embodiment, the weight of the entire elevator loading/unloading vehicle can be reduced as much as possible while stably supporting the object 400 to be loaded or unloaded by providing the two support cantilevers 110, thereby realizing light weight production. Simultaneously, the weight reduction of whole loading and unloading car for the elevator can also suitably alleviate the user and use the physical demands when the loading and unloading car for the elevator that this embodiment provided, and the practicality promotes by a wide margin.

In addition, in the embodiment, the lower end surfaces of the two supporting cantilevers 110 are disposed obliquely, and one end of the supporting cantilevers, which is far away from the docking plate 120, is higher than one end of the supporting cantilevers, which is fixed to the docking plate 120. In one aspect, the end of the two supporting cantilevers 110 fixed to the docking plate 120 is thicker than the end thereof far away from the docking plate 120, so that the overall strength is higher, the cantilevers are not easily deformed or damaged by force, and the service life and performance are improved. On the other hand, the ends of the two supporting cantilevers 110 far away from the butt plate 120 are higher than the ends of the two supporting cantilevers 110 fixed to the butt plate 120, so that the two supporting cantilevers 110 are less likely to touch the car 700 when descending under the action of the lifting device 600, thereby avoiding stress deformation of the sill and the car frame, and improving the service performance and service life of the elevator and the car 700 thereof.

Specifically, referring to fig. 1 and 2, when a user uses the lift truck to transport the object 400 to be loaded or unloaded to the inside of the elevator car 700, the lift truck is pushed to the area where the object 400 is located, the pedal 632 is lifted by foot, the stage 100 is lowered to a proper position, and then the object 400 is placed on the stage 100. Then, the handle 226 is rotated to adjust the position of the counterweight 500, so that the lift truck is in a balanced state and does not tilt forward. Then, the step 632 is stepped on by the foot to lift the object stage 100, so as to prevent the object stage 100 from pressing the sill and the car frame when entering the car 700. Subsequently, the user grips the handle 300, pushes the lift truck to the car 700 floor door, opens the car 700 floor door, and continues to push the lift truck so that the object 400 to be loaded and unloaded is positioned in the region above the center position of the car 700. At this time, the universal wheels 211 are positioned outside the car 700 and do not press the sill and the car frame. Then, the object stage 100 is lowered to a proper position by lifting the pedal 632 with feet, and the object 400 to be loaded or unloaded is placed in the middle of the car 700, at this time, the whole car 700 is uniformly stressed, and the unbalance loading phenomenon cannot occur. After the object 400 to be loaded and unloaded is placed, the handle 226 is rotated to move the counterweight block 500 to the central area of the four universal wheels 211, so that the elevator loading and unloading truck is in a balanced state. Then, the pedal 632 is stepped by the foot to lift the object stage 100, so that the object stage 100 is prevented from pressing the sill and the car frame when leaving the car 700. Finally, the user grasps the handle 300, withdraws the lift truck from the car 700, closes the door of the car 700, and transports the object 400 to be loaded or unloaded to a designated floor.

In contrast, referring to fig. 1 and 2, when the user uses the lift truck to transport the object 400 to be loaded or unloaded from the interior of the elevator car 700, the user should first step on the pedal 632 with his foot to lift the object table 100, so as to prevent the object table 100 from pressing against the sill and the car frame when entering the car 700. Then, the user grips the handle 300, pushes the lift truck to the car 700 landing door, opens the car 700 landing door, and continues to push the lift truck so that the platform 100 is positioned in the region above the center position of the car 700. At this time, the universal wheels 211 are positioned outside the car 700 and do not press the sill and the car frame. Next, the pedal 632 is lifted by foot to lower the stage 100 to a proper position, and the object 400 to be loaded or unloaded is placed on the stage 100, so that the whole car 700 is uniformly stressed and no unbalance loading occurs. After the object 400 to be loaded and unloaded is placed, the user rotates the handle 226 to adjust the position of the counterweight block 500, so that the elevator truck is in a balanced state and cannot topple forward. Then, the pedal 632 is stepped by the foot to lift the object stage 100, so that the object stage 100 is prevented from pressing the sill and the car frame when leaving the car 700. Finally, the user grasps the handle 300, withdraws the elevator truck from the car 700, and conveys the object 400 to be loaded and unloaded to a predetermined position.

In practical production, the length of the two supporting cantilevers 110 and the distance between the two supporting cantilevers 110 can be flexibly set according to the size of the object 400 to be loaded and unloaded and the size of the car 700, and the invention is not limited thereto and falls within the protection scope of the invention.

In the foregoing embodiments, the descriptions of the respective embodiments have their respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

It should be noted that the above embodiments can be freely combined as necessary. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. A loading and unloading vehicle for an elevator is characterized by comprising:

an object stage, a counterweight table and a handrail;

the object stage can move up and down relative to the counterweight table and is used for placing objects to be loaded and unloaded;

2. A loading and unloading vehicle for an elevator according to claim 1,

the counterweight table is far away from one side of the universal wheel, two upright posts are arranged at one end of the counterweight table facing the objective table, and the two upright posts are symmetrically distributed in the areas of two opposite sides of the counterweight table; and

3. A loading and unloading vehicle for an elevator according to claim 2,

the quantity of spout is one, locates the butt joint board orientation one side of counter weight platform, and two the stand is located respectively the both sides edge of spout.

4. The lift truck of claim 2, further comprising:

and the hoisting device is fixed on the counterweight table and is used for driving the objective table to move up and down along the length direction of the upright post.

5. A loading and unloading vehicle for an elevator according to claim 4,

the hoisting device comprises a hoisting component, an elastic part and a pull rod;

the pull rod is fixed on the counterweight table, a second abutting table is arranged at one end of the pull rod and abuts against the elastic piece, and one end, far away from the abutting table, of the pull rod extends to the end, provided with the handrail, of the counterweight table;

6. A loading/unloading vehicle for an elevator according to claim 5,

and a pedal is arranged at one end of the pull rod, which is far away from the butting table.

7. A loading/unloading vehicle for an elevator according to any one of claims 1 to 6,

the counterweight table comprises a main board and a conveying device;

8. A loading/unloading vehicle for an elevator according to claim 7,

the conveying device comprises a driving wheel, a driven wheel, a transmission chain and a conveying belt;

9. A loading/unloading vehicle for an elevator according to claim 8,

and a handle is arranged at one end of the rotating shaft penetrating through the driving wheel, and a user rotates the handle to drive the driving wheel to rotate, so that the balancing weight is driven to move along the length direction of the main board.

10. A loading/unloading vehicle for an elevator according to any one of claims 1 to 6,

the objective table comprises two supporting cantilevers and a connecting plate for connecting the two supporting cantilevers, and the connecting plate is used for movably fixing the two supporting cantilevers on the counterweight table;