CN111517246B - Portable hand electric fork-lift - Google Patents

Portable hand electric fork-lift

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Publication number
CN111517246B
CN111517246B CN202010297914.4A CN202010297914A CN111517246B CN 111517246 B CN111517246 B CN 111517246B CN 202010297914 A CN202010297914 A CN 202010297914A CN 111517246 B CN111517246 B CN 111517246B
Authority
CN
China
Prior art keywords
frame
front fork
connecting rod
rod
lifting arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010297914.4A
Other languages
Chinese (zh)
Other versions
CN111517246A (en
Inventor
史建刚
王静
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of CN111517246A publication Critical patent/CN111517246A/en
Application granted granted Critical
Publication of CN111517246B publication Critical patent/CN111517246B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07504—Accessories, e.g. for towing, charging, locking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07513—Details concerning the chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07554—Counterweights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07586—Suspension or mounting of wheels on chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/0759—Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/122—Platforms; Forks; Other load supporting or gripping members longitudinally movable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

本申请公开了一种便携式的手扶电动叉车。包括第一车架和设置在第一车架上的第二车架；本方案中公开了一种便携式的手扶电动叉车的具体结构，利用第一车架作为承载机构，并增设相对第一车架移动的第二车架，将货物置于第二车架的前叉上，当驱动组件启动使得起重臂靠近第一车架的一端围绕第一连接杆旋转且起重臂远离第一连接杆一端将第二车架提升，以将第二车架上的待搬运的货物提升；为保证第二车架被提升过程中的稳定性，第一车架和第二车架之间设有平衡拉杆，平衡拉杆分别与前叉立梁、第二连接杆可旋转连接，当驱动组件启动使得起重臂靠近第一车架的一端围绕第一连接杆旋转，平衡拉杆绕着第二连接杆旋转，故平衡拉杆不会妨碍起重臂的提升过程。

The present application discloses a portable electric hand-held forklift. The forklift comprises a first frame and a second frame mounted on the first frame. The present invention discloses a specific structure of the portable electric hand-held forklift. The first frame is used as a load-bearing mechanism, and a second frame is provided that is movable relative to the first frame. Goods are placed on the front fork of the second frame. When a driving assembly is activated, the end of the lifting arm close to the first frame rotates around a first connecting rod, and the end of the lifting arm away from the first connecting rod lifts the second frame, thereby lifting the goods to be transported on the second frame. To ensure the stability of the second frame during the lifting process, a balancing rod is provided between the first frame and the second frame. The balancing rod is rotatably connected to the front fork upright beam and the second connecting rod, respectively. When the driving assembly is activated, the end of the lifting arm close to the first frame rotates around the first connecting rod, and the balancing rod rotates around the second connecting rod. Therefore, the balancing rod does not hinder the lifting process of the lifting arm.

Description

Portable hand electric fork-lift
Technical Field
The present disclosure relates generally to the field of forklift equipment, and in particular to a portable hand-held electric forklift.
Background
The forklift is an industrial transport vehicle, and is a wheeled transport vehicle for handling, stacking and short-distance transporting finished pallet cargoes, and is widely used in ports, stations, airports, goods yards, factory workshops, warehouses, distribution centers and the like, and is an indispensable device for handling and transporting pallet cargoes in cabins, carriages and containers.
At present, for cargoes with larger lifting capacity, as well as larger ports, airports and factory workshops, in most cases, a vehicle-mounted forklift and a small-sized pushing forklift are required to be matched for use, in most cases, the vehicle-mounted forklift carries and lifts cargoes by manually driving vehicles in the use process, the efficiency is higher, but the cost of the vehicle-mounted forklift is higher, the vehicle-mounted forklift is suitable for long-distance carrying, and is suitable for large-area sites, in the case of carrying cargoes with small factories, the cost of using the vehicle-mounted forklift is higher, and in the case of small sites, the vehicle-mounted forklift is inconvenient to move, even certain safety accidents are possibly caused, and at the moment, the small-sized pushing forklift can be more fit with actual carrying requirements.
The small-sized pushing forklift existing in the market at present is mostly a manual hydraulic forklift, most of the small-sized pushing forklift plays a role in transporting cargoes, the manual hydraulic forklift has the defect that the lifting height is limited for cargoes needing to be loaded and unloaded, most of the small-sized pushing forklift still needs manpower to carry out loading and unloading processes, and the manual hydraulic forklift is heavy in weight and cannot be carried along with a vehicle, so that the portable hand electric forklift is used for solving the problems of difficult carrying, low efficiency and high labor cost existing in the conventional forklift.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a portable hand-held electric forklift that can be carried on-board, that is convenient and quick to load and unload cargo, that is labor-efficient, that is simple in structure, and that is easy to implement.
In a first aspect, the application provides a portable hand-held electric forklift, comprising a first frame and a second frame arranged on the first frame;
The first frame comprises a frame and two inclined beams which are arranged in parallel, wherein the frame is of a U-shaped structure, the frame is provided with two front fork legs which are arranged in parallel, the end part of each front fork leg is provided with a first trundle, one side of the frame, which is far away from the front fork leg, is provided with two cross beams which are arranged in parallel, the end part of each cross beam is provided with a second trundle, a first connecting rod and a second connecting rod which are arranged in parallel are arranged between the two inclined beams, and the second connecting rod is positioned at the end parts of the two inclined beams;
The second frame comprises a lifting arm and a front fork vertical beam, wherein the lifting arm is arranged on the first connecting rod, the lifting arm is connected with a driving assembly, the front fork vertical beam is arranged at the end part of the lifting arm, a front fork is arranged on the front fork vertical beam, a balance pull rod is arranged between the front fork vertical beam and the second connecting rod and is respectively and rotatably connected with the front fork vertical beam and the second connecting rod, a long strip hole is further formed in the lifting arm, two symmetrically arranged pull scales are arranged at the edge of the long strip hole, and a connecting shaft is arranged between the two pull scales.
According to the technical scheme, the driving assembly comprises an oil cylinder and storage batteries, wherein the oil cylinder is arranged on a frame, the oil cylinder is located between two second support rods, a piston rod of the oil cylinder is fixedly connected with a telescopic rod, the end portion of the telescopic rod penetrates through a strip hole and is fixedly connected to a connecting shaft, the storage batteries can be arranged on the side wall of any inclined beam, the surface of the frame or the side wall of the frame close to a cross beam, handrails are arranged on the outer wall of each inclined beam, the handrails are close to the end portions of the inclined beams, the two handrails are symmetrically arranged, a control switch is further arranged at the end portion of any inclined beam, the control switch is arranged adjacent to the handrails, and the storage batteries are respectively connected with the oil cylinder and the control switch through wires.
According to the technical scheme provided by the embodiment of the application, the angle formed by the inclined beam and the front fork leg is larger than or equal to 90 degrees.
According to the technical scheme provided by the embodiment of the application, the second foot wheel is a universal wheel.
According to the technical scheme provided by the embodiment of the application, the supporting rods are arranged between the oblique beams and the cross beams.
According to the technical scheme provided by the embodiment of the application, two ends of the supporting rod are detachably connected with the oblique beam and the transverse beam respectively.
According to the technical scheme provided by the embodiment of the application, the lifting arm is provided with the limit switch, and the limit switch is arranged close to the first connecting rod.
In summary, the technical scheme specifically discloses a specific structure of a portable hand-held electric forklift. The application specifically utilizes the first frame as a bearing mechanism of the hand-held electric forklift, adds the second frame which can move relative to the first frame on the first frame, places the goods to be carried on the front fork of the second frame, and lifts the second frame when the driving component is started so that one end of the lifting arm, which is close to the first frame, rotates around the first connecting rod and one end of the lifting arm, which is relatively far from the first connecting rod, lifts the goods to be carried on the second frame. In the technical scheme, in order to ensure the balance stability of the second frame in the lifting process, a balance pull rod is arranged between the first frame and the second frame, the balance pull rod is respectively and rotatably connected with the front fork vertical beam and the second connecting rod, when the driving assembly is started, one end of the lifting arm, which is close to the first frame, rotates around the first connecting rod, and meanwhile, the balance pull rod rotates around the second connecting rod, so that the balance pull rod cannot obstruct the lifting operation process of the lifting arm.
In this scheme further offer rectangular hole on the jib loading boom, set up the pulling balance of two symmetries at rectangular hole's border, the tip of telescopic link runs through rectangular hole rigid coupling and is on the connecting axle between two pulling balance, and the hydro-cylinder starts can drive the jib loading boom and goes up and down, and pulling balance can share the partial gravity that the jib loading boom bore, has avoided the jib loading boom to bear the gravity too big, appears the problem of rupture.
In this scheme for further reinforcing the supporting effect of sloping, set up the bracing piece between sloping and crossbeam, the bracing piece can support the sloping when waiting to carry the goods weight big, for the sloping sharing weight, when avoiding the front fork to rise the transport goods, the too big quilt of sloping atress is pressed absolutely, makes this fork truck receive the damage.
In this scheme further in order to control the height that the jib loading boom risees, set up the limit switch who is close to the head rod on the jib loading boom for the jib loading boom moves to the position that sets for and can stop the motion, has the effect of protection to the jib loading boom.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a portable hand-held electric forklift.
Fig. 2 is a schematic view of a portable hand-held electric forklift in a lifted state.
Fig. 3 is a schematic structural view of a portable hand-held electric forklift.
In the figure, the reference numerals are 1, a frame, 2, an inclined beam, 3, a cross beam, 4, a first connecting rod, 5, a second connecting rod, 6, a lifting arm, 7, a front fork vertical beam, 8, a front fork, 9, a balance pull rod, 10, an oil cylinder, 11, a telescopic rod, 12, a pull scale, 13, a connecting shaft, 14, a long hole, 15, a first caster wheel, 16, a second caster wheel, 17, a storage battery, 18, a control switch, 19, a supporting rod, 20, a limit switch, 21 and an armrest.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1,2 and 3, the structure of an embodiment of a portable hand-held electric forklift provided by the present application includes a first frame and a second frame disposed on the first frame.
The first frame comprises a frame 1 and two parallel inclined beams 2, wherein the frame 1 is of a U-shaped structure, two parallel front fork legs are arranged on the frame 1, a first foot wheel 15 is arranged at the end part of each front fork leg, two parallel cross beams 3 are arranged on one side, away from the front fork legs, of the frame 1, a second foot wheel 16 (shown in fig. 1 or 3) is arranged at the end part of each cross beam 3, a first connecting rod 4 and a second connecting rod 5 which are arranged in parallel are arranged between the two inclined beams 2, and the second connecting rod 5 is located at the end parts (shown in fig. 1 or 3) of the two inclined beams 2.
The second frame comprises a lifting arm 6 and a front fork vertical beam 7, wherein the lifting arm 6 is arranged on the first connecting rod 4, the lifting arm 6 is connected with a driving assembly, the front fork vertical beam 7 is arranged at the end part of the lifting arm 6, a front fork 8 is arranged on the front fork vertical beam 7, a balance pull rod 9 is arranged between the front fork vertical beam 7 and the second connecting rod 5, the balance pull rod 9 is respectively and rotatably connected with the front fork vertical beam 7 and the second connecting rod 5 (shown in fig. 1 or 3), a long strip hole 14 is further formed in the lifting arm 6, two symmetrically arranged pull scales 12 are arranged at the edge of the long strip hole 14, and a connecting shaft 13 (shown in fig. 1 or 3) is arranged between the two pull scales 12.
In this embodiment, the frame 1 has a U-shaped structure, and is used as a bearing base of the forklift, and is used for installing a second frame that can move relative to the first frame.
The two inclined beams 2 are arranged on the surface of the frame 1 in parallel and play a role in supporting cargoes, in addition, the angle formed by the inclined beams 2 and the front fork legs of the frame 1 is greater than or equal to 90 degrees, so that the force born by the crane boom 6 can be dispersed, and the crane boom 6 is prevented from being broken by pressure.
The two cross beams 3 are arranged in parallel on one side (shown in fig. 1 or 3) of the frame 1 away from the front fork legs and are used for installing the second foot wheel 16, and the effect of supporting and facilitating movement is also achieved.
The second foot wheel 16 is arranged at the end part (shown in fig. 1 or 3) of the cross beam 3, and the first foot wheel 15 and the second foot wheel 16 are matched for use, so that the effect of conveniently moving the forklift is achieved, and here, the second foot wheel 16 adopts universal wheels, so that the effect of conveniently turning the forklift during moving is achieved.
The first connecting rod 4 and the second connecting rod 5 are arranged between the two inclined beams 2, the two inclined beams are arranged in parallel, the second connecting rod 5 is positioned at the end parts of the two inclined beams 2, the first connecting rod 4 is used for installing the crane boom 6, and the second connecting rod 5 is used for installing the balance pull rod 9 (shown in fig. 1 or 3).
And the lifting arm 6 is arranged on the first connecting rod 4 and is used for lifting the goods to be conveyed, and the lifting process of the goods to be conveyed can be realized by adopting a straight arm or a crank arm to the lifting arm 6.
The front fork vertical beam 7 is arranged at the end part of the lifting arm 6 and used for installing a front fork 8, and the front fork 8 is arranged on the front fork vertical beam 7 and used for bearing goods to be carried.
The balance pull rod 9 is disposed between the front fork vertical beam 7 and the second connecting rod 5, and is rotatably connected with the front fork vertical beam 7 and the second connecting rod 5 respectively, so as to maintain the balance stability of the front fork vertical beam 7, and simultaneously can share the gravity for the crane arm 6 (shown in fig. 1 or 3). When the drive assembly is activated such that the end of the boom 6 near the first frame rotates around the first connecting rod 4, and at the same time the balancing lever 9 rotates around said second connecting rod 5, the balancing lever 9 does not interfere with the lifting operation of the boom 6. The balance pull rod 9 can be rotatably connected with the front fork vertical beam 7 and the second connecting rod 5 respectively, or a connecting frame can be arranged at the end parts of the two inclined beams 2, and the two ends of the balance pull rod 9 can be rotatably connected with the connecting frame and the front fork vertical beam 7 respectively, and the connecting frame can also be used as an armrest and an installation control switch.
And a long strip hole 14 is arranged on the lifting arm 6 and used for the telescopic rod 11 to pass through, wherein the cross section shape of the long strip hole 14 can be round or square.
The two pullers 12 are symmetrically arranged at the edge of the strip hole 14, a connecting shaft 13 is arranged between the two pullers and is used for fixing the telescopic rod 11, the lifting effect of the crane boom 6 is controlled by the oil cylinder 10, meanwhile, the pullers 12 share the gravity of the crane boom 6, the problem that the crane boom 6 is broken due to overlarge gravity is avoided, the shape of the pullers 12 is not limited, and optionally, the pullers are triangular, square, rectangular or irregularly-shaped.
In any preferred embodiment, the driving assembly comprises an oil cylinder 10 and a storage battery 17, wherein the oil cylinder 10 is arranged on the frame 1, the oil cylinder 10 is positioned between the two second support rods 3, a telescopic rod 11 is fixedly connected to a piston rod of the oil cylinder 10, the end part of the telescopic rod 11 penetrates through the long strip hole 14 and is fixedly connected to the connecting shaft 13, the storage battery 17 can be arranged on the side wall of any inclined beam 2, the surface of the frame 1 or the side wall of the frame 1 close to the cross beam 3, an armrest 21 is arranged on the outer wall of each inclined beam 2, the armrests 21 are close to the end parts of the inclined beams 2, two armrests 21 are symmetrically arranged, a control switch 18 is further arranged at the end part of any inclined beam 2, the control switch 18 is adjacent to the armrest 21, and the storage battery 17 is respectively connected with the oil cylinder 10 and the control switch 18 through wires.
In this embodiment, the oil cylinder 10 is disposed on the frame 1, the oil cylinder 10 is disposed between two second support rods 3, and a telescopic rod 11 is fixedly connected to a piston rod of the oil cylinder 10 to provide driving force for lifting of the boom 6, for example, TKC MOB40 is 200-TC, when the oil cylinder 10 is started, the boom 6 is close to one end of the first frame and the boom 6 is relatively far away from the first connecting rod 4 to lift the second frame, so as to lift the cargo to be carried on the second frame, a storage battery 17 is disposed on a side wall of any one of the inclined beams 2, a surface of the frame 1 or a side wall of the frame 1 close to the cross beam 3, and is used for providing electric energy for the oil cylinder 10, a model of the storage battery, for example, 48v 12ah batteries, is disposed on an outer wall of each inclined beam 2, and is close to an end of the inclined beam 2, and the two handrails 21 are symmetrically disposed, so that an operator can push the forklift, and the handrails 21 can be conveniently disposed on an end of the inclined beam 2, and can be conveniently opened and closed by the operator, and the operator can control the handrails 18 through the control the switch 18, and the control the opening and the handrails 18.
In any preferred embodiment, a support bar 19 is provided between the oblique beam 2 and the transverse beam 3.
In this embodiment, the supporting rod 19 is disposed between the oblique beam 2 and the cross beam 3, so as to enhance the supporting effect of the oblique beam 2, and prevent the oblique beam 2 from being broken by heavy goods, thereby damaging the device.
In any preferred embodiment, both ends of the supporting rod 19 are detachably connected to the oblique beam 2 and the transverse beam 3, respectively.
In this embodiment, the connection mode of the two ends of the supporting rod 19 with the oblique beam 2 and the cross beam 3 is not limited herein, alternatively, the two ends of the supporting rod 19 are connected with the oblique beam 2 and the cross beam 3 by bolts, so that the supporting rod 19 can be replaced conveniently, and the proper supporting rod 19 can be installed according to different weight of the load, so as to ensure the supporting effect.
In any preferred embodiment, a limit switch 20 is disposed on the boom 6, and the limit switch 20 is disposed near the first connecting rod 4.
In this embodiment, a limit switch 20 is disposed on the boom 6 and is disposed near the first connecting rod 4, so as to limit the lifting height of the boom 6, so that the boom 6 can stop moving when moving to a set position, so as to achieve the effect of protecting the boom 6, where the type of the limit switch 20 is, for example, a STEIMEX LSA-012 type limit switch.
The specific working process is as follows:
Firstly, a storage battery 17 fully charged is arranged on an inclined beam 2, the whole forklift is moved to a specified position of goods to be carried, then an operator starts a control switch 18, so that the storage battery 17 supplies power to an oil cylinder 10, the output end of the oil cylinder 10 lifts a lifting arm 6, the lifting arm 6 drives a front fork vertical beam 7 to move upwards, the front fork vertical beam 7 is kept balanced in the lifting process by acting forces at two ends of a balance pull rod 9 in the lifting process of the front fork vertical beam 7, and the lifting process of the front fork vertical beam 7 is the lifting process of the front fork 8 due to rigid connection between the front fork vertical beam 7 and the front fork 8, and then the goods are taken and carried.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims (7)

1.一种便携式的手扶电动叉车，其特征在于，包括：第一车架和设置在所述第一车架上的第二车架；1. A portable electric walk-behind forklift, comprising: a first frame and a second frame disposed on the first frame; 所述第一车架包括：车架（1）和两个平行设置的斜梁（2）；所述车架（1）呈U型结构，所述车架（1）设置有两个平行设置的前叉腿；每个所述前叉腿的端部设置有第一脚轮（15）；所述车架（1）远离所述前叉腿的一侧设置有两个平行设置的横梁（3）；所述横梁（3）的端部设置有第二脚轮（16）；两个所述斜梁（2）之间设置有平行设置的第一连接杆（4）与第二连接杆（5），且所述第二连接杆（5）位于两个所述斜梁（2）的端部；The first frame comprises: a frame (1) and two parallel inclined beams (2); the frame (1) is a U-shaped structure, and is provided with two parallel front fork legs; a first caster (15) is provided at the end of each front fork leg; two parallel cross beams (3) are provided on a side of the frame (1) away from the front fork legs; a second caster (16) is provided at the end of the cross beam (3); a first connecting rod (4) and a second connecting rod (5) are provided in parallel between the two inclined beams (2), and the second connecting rod (5) is located at the ends of the two inclined beams (2); 所述第二车架包括：起重臂（6）和前叉立梁（7）；所述起重臂（6）设置在所述第一连接杆（4）上，且所述起重臂（6）连接有驱动组件；所述前叉立梁（7）设置在所述起重臂（6）的端部；所述前叉立梁（7）上设置有前叉（8）；所述前叉立梁（7）与所述第二连接杆（5）之间设有平衡拉杆（9）；所述平衡拉杆（9）分别与所述前叉立梁（7）、所述第二连接杆（5）可旋转连接；所述起重臂（6）上还开设有长条孔（14）；所述长条孔（14）的边沿设置有两个对称设置的拉称（12）；两个所述拉称（12）之间设置有连接轴（13）；The second frame comprises: a lifting arm (6) and a front fork upright beam (7); the lifting arm (6) is arranged on the first connecting rod (4), and the lifting arm (6) is connected to a driving assembly; the front fork upright beam (7) is arranged at the end of the lifting arm (6); a front fork (8) is arranged on the front fork upright beam (7); a balancing pull rod (9) is provided between the front fork upright beam (7) and the second connecting rod (5); the balancing pull rod (9) is rotatably connected to the front fork upright beam (7) and the second connecting rod (5) respectively; a long hole (14) is also provided on the lifting arm (6); two symmetrically arranged pull scales (12) are provided on the edge of the long hole (14); a connecting shaft (13) is provided between the two pull scales (12); 其中，所述斜梁（2）与所述前叉腿形成的角度大于或等于90度；所述第二脚轮（16）为万向轮；Wherein, the angle formed by the oblique beam (2) and the front fork leg is greater than or equal to 90 degrees; the second caster (16) is a universal wheel; 其中，所述驱动组件包括油缸（10），所述油缸（10）的活塞杆固接有伸缩杆（11），且所述伸缩杆（11）的端部贯穿所述长条孔（14）固接在所述连接轴（13）上。The driving assembly comprises an oil cylinder (10), a piston rod of the oil cylinder (10) is fixedly connected to a telescopic rod (11), and an end of the telescopic rod (11) passes through the elongated hole (14) and is fixedly connected to the connecting shaft (13). 2.根据权利要求1所述的一种便携式的手扶电动叉车，其特征在于，所述驱动组件还包括蓄电池（17）；所述油缸（10）设置在所述车架（1）上，且所述油缸（10）位于两个所述横梁（3）之间。2. A portable electric hand-held forklift according to claim 1, characterized in that the drive assembly further comprises a battery (17); the oil cylinder (10) is arranged on the frame (1), and the oil cylinder (10) is located between the two crossbeams (3). 3.根据权利要求2所述的一种便携式的手扶电动叉车，其特征在于，所述蓄电池（17）能够设置在任一所述斜梁（2）的侧壁上、所述车架（1）的表面或者所述车架（1）靠近所述横梁（3）的侧壁上。3. A portable electric hand-held forklift according to claim 2, characterized in that the battery (17) can be arranged on the side wall of any of the inclined beams (2), the surface of the frame (1), or the side wall of the frame (1) close to the cross beam (3). 4.根据权利要求2或3所述的一种便携式的手扶电动叉车，其特征在于，每个所述斜梁（2）的外壁上设置有扶手（21），所述扶手（21）靠近所述斜梁（2）的端部，且两个所述扶手（21）对称设置；任一所述斜梁（2）的端部还设置有控制开关（18），且所述控制开关（18）与所述扶手（21）相邻设置；所述蓄电池（17）通过导线分别与所述油缸（10）、所述控制开关（18）连接。4. A portable hand-held electric forklift according to claim 2 or 3, characterized in that a handrail (21) is provided on the outer wall of each inclined beam (2), the handrail (21) is close to the end of the inclined beam (2), and the two handrails (21) are symmetrically arranged; a control switch (18) is also provided at the end of any inclined beam (2), and the control switch (18) is arranged adjacent to the handrail (21); the battery (17) is connected to the oil cylinder (10) and the control switch (18) respectively through wires. 5.根据权利要求1-3中任一项所述的一种便携式的手扶电动叉车，其特征在于，所述斜梁（2）与所述横梁（3）之间设置有支撑杆（19）。5. A portable electric hand-held forklift according to any one of claims 1 to 3, characterized in that a support rod (19) is provided between the oblique beam (2) and the cross beam (3). 6.根据权利要求5所述的一种便携式的手扶电动叉车，其特征在于，所述支撑杆（19）的两端分别可拆卸地与所述斜梁（2）、所述横梁（3）连接。6. A portable electric hand-held forklift according to claim 5, characterized in that both ends of the support rod (19) are detachably connected to the oblique beam (2) and the cross beam (3). 7.根据权利要求1-3中任一项所述的一种便携式的手扶电动叉车，其特征在于，所述起重臂（6）上设置有限位开关（20），且所述限位开关（20）靠近所述第一连接杆（4）设置。7. A portable electric hand-held forklift according to any one of claims 1 to 3, characterized in that a limit switch (20) is provided on the lifting arm (6), and the limit switch (20) is provided close to the first connecting rod (4).
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