CN215558743U

CN215558743U - Walking electric carrier

Info

Publication number: CN215558743U
Application number: CN202121680952.4U
Authority: CN
Inventors: 张建东; 张汉章; 郑晓霞; 张青青; 孙怡芳; 张建辉; 王俊
Original assignee: Zhejiang Jialift Warehouse Equipment Co ltd
Current assignee: Zhejiang Jialift Warehouse Equipment Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-01-18
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a walking electric carrier, which comprises a frame, a pallet fork, a lifting driving mechanism and an operating handle, wherein the operating handle is positioned on one side of the frame and is arranged above the lifting driving mechanism, and the pallet fork is positioned on the other side of the frame; the frame includes frame bounding wall and frame front panel, and frame front panel installs in frame bounding wall and forms a cavity structure with frame bounding wall, installs in the cavity structure and is equipped with diaphragm and battery bottom plate, goes up and is the interval setting between diaphragm and the battery bottom plate and separates the cavity structure for the multilayer, is the upper strata that is located the diaphragm top, is located the intermediate level between battery bottom plate and the last diaphragm and is located the lower floor of battery bottom plate below respectively, and hydraulic system and charger are installed in the upper strata, and the battery box is installed in the intermediate level, and electrical control system installs in the lower floor. The electric truck has the advantages of small and compact structure and convenient operation, and is favorable for popularization and application of the electric truck in the technical field of trucks.

Description

Walking electric carrier

Technical Field

The utility model relates to the technical field of a carrying vehicle, in particular to a walking type electric carrying vehicle.

Background

The electric Truck (english name: Pallet Truck) is a logistics transportation device for transporting goods. The storage battery is used as a power source, the motor is used as power, the vehicle is driven to run through gear transmission, and the lifting of the pallet fork is realized by the direct current motor and hydraulic transmission, so that the oil cylinder is pushed to move up and down to lift the pallet fork and the goods. The running and lifting of the vehicle are both electric, the driving mode is a standing driving mode, and the steering operation is steering by a steering handle, so that the vehicle has the characteristics of labor saving, high efficiency, stable cargo running, simple operation, safety, reliability, low noise, no pollution and the like. The vehicle adopts a 24-volt high-capacity storage battery, so that the use time after one-time charging is greatly prolonged.

At present, the traditional electric carrier has large volume and inconvenient use, and is not beneficial to popularization and application of the carrier in the market.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a walking type electric truck which is small and compact in structure, convenient to operate and beneficial to popularization and application of the electric truck in the technical field of trucks.

In order to achieve the purpose, the utility model adopts the following technical scheme that the walking type electric carrier comprises a frame, a fork, a lifting driving mechanism and an operating handle, wherein the frame is arranged in a multilayer structure, the fork is used for forking goods, the lifting driving mechanism is used for driving the fork, the operating handle is used for operating, the operating handle is positioned on one side of the frame and is arranged above the lifting driving mechanism, and the fork is positioned on the other side of the frame; the frame comprises a frame enclosing plate and a frame front panel, the frame front panel is arranged on the frame enclosing plate and forms a cavity structure with the frame enclosing plate, an upper transverse plate and a battery bottom plate are arranged in the cavity structure, the upper transverse plate and the battery bottom plate are arranged at intervals to divide the cavity structure into multiple layers, the upper layer is positioned above the upper transverse plate, the middle layer is positioned between the battery bottom plate and the upper transverse plate, the lower layer is positioned below the battery bottom plate, a hydraulic system and a charger are arranged on the upper layer, a battery box is arranged on the middle layer, and an electric appliance control system is arranged on the lower layer.

As a preferred scheme of the utility model, the lifting driving mechanism comprises a driving gear, a large rib plate, a small rib plate, a push rod fork and a push rod, the large rib plate is installed at the output end of the driving gear, the small rib plate and the large rib plate are both installed on a supporting shaft, the push rod fork is connected between the small rib plate and the push rod, and the push rod is installed at the bottom of the fork; the large rib plate is provided with a large rib plate boss, and a lifting limit switch is arranged above the large rib plate boss; when the lifting limit switch contacts the boss of the large rib plate, the fork stops lifting.

As a preferable scheme of the present invention, the upper cross plate includes an upper cross plate main plate and an upper cross plate side plate, the upper cross plate main plate and the upper cross plate side plate are perpendicular to each other, and a joint of the upper cross plate main plate and the upper cross plate side plate is arranged in a round angle manner.

As a preferable scheme of the utility model, a fork riser is installed in a lower layer below the battery bottom plate, an electric control installation plate is installed on the fork riser, the electric control installation plate comprises an electric control installation main plate, the electric control installation main plate is provided with an electric control installation support plate, the electric control installation support plate and the electric control installation main plate are vertically arranged, the electric control installation support plates are multiple, and an electric control heat dissipation groove is formed between every two adjacent electric control installation support plates.

As a preferable scheme of the present invention, the lifting limit switch is mounted on a fork riser, the fork riser is further provided with a switch mounting location and a switch mounting hole, the switch mounting hole is located at a side edge of the switch mounting location, and the large rib plate is arranged corresponding to the switch mounting location.

As a preferable scheme of the utility model, the side edge of the frame coaming is provided with a heat dissipation groove.

As a preferable aspect of the present invention, the heat dissipation grooves are in a shape of a kidney-shaped hole, and the plurality of heat dissipation grooves are arranged in parallel to each other.

As a preferable scheme of the present invention, the lifting limit switch is a micro switch.

As a preferable scheme of the utility model, the frame further comprises an upper cover, and the upper cover is detachably covered on the top of the coaming of the frame.

As a preferable aspect of the present invention, the frame surrounding plate includes a first mounting plate, and a second mounting plate, a third mounting plate, a fourth mounting plate, and a fifth mounting plate are symmetrically disposed along both sides of a central axis of the first mounting plate, and the first mounting plate, the second mounting plate, the third mounting plate, the fourth mounting plate, and the fifth mounting plate are sequentially connected to form the frame surrounding plate of a semi-enclosed structure.

Compared with the prior art, the utility model has the following beneficial effects: the walking type electric carrier is provided with the upper transverse plate and the battery bottom plate, the cavity structure is divided into a plurality of layers, the hydraulic system and the charger are arranged on the upper layer, the battery box is arranged on the middle layer, the electric appliance control system is arranged on the lower layer, so that the whole frame structure is ingenious and compact, the heating sources of the electric appliances are distributed from high to low and are separated from top to bottom, the electric appliances are not affected each other in the use process, the performance of the whole electric carrier is ensured, the use effect of the electric carrier is ensured, and the popularization and the application of the electric carrier in the technical field of carriers are facilitated.

Drawings

FIG. 1 is a schematic view showing the construction of a walking-type electric truck according to an embodiment;

FIG. 2 is a schematic view showing the construction of the walking-type electric truck according to the embodiment;

FIG. 3 is a schematic view showing the construction of the walking-type electric truck according to the embodiment;

FIG. 4 is a schematic view showing the construction of the walking-type electric truck according to the embodiment;

FIG. 5 is a schematic structural view of a frame panel of the walk-behind electric truck according to the embodiment;

FIG. 6 is a schematic structural view of a front panel of a frame of the electric walk-behind truck according to the embodiment;

FIG. 7 is a schematic view of the upper cross board of the electric walk-behind truck in the embodiment;

FIG. 8 is a schematic view showing a fork riser in the walking-type electric cart according to the embodiment;

FIG. 9 is a schematic view of an electric control mounting plate of the walking-type electric truck in the embodiment;

FIG. 10 is a schematic structural view of a large rib plate of the walking electric truck according to the embodiment.

Reference numerals: 1. a frame coaming; 1-1, a heat dissipation groove; 1-2, a first mounting plate; 1-3, a second mounting plate; 1-4, a third mounting plate; 1-5, a fourth mounting plate; 1-6, a fifth mounting plate; 2. a frame front panel; 2-1, a front panel gripper groove; 2-2, front panel mounting holes; 3. an upper transverse plate; 3-1, an upper transverse plate main plate; 3-2, an upper cross plate side plate; 3-3, an upper cross plate gripper groove; 3-4, mounting holes of an upper transverse plate; 4. a battery chassis; 5. a fork riser; 5-0, connecting holes of the vertical plate; 5-1, a switch mounting position; 5-2, switch mounting holes; 6. an electric control mounting plate; 6-1, installing a main board in an electric control mode; 6-2, electrically controlling a mounting support plate; 6-3, an electric control heat dissipation groove; 7. a shock pad; 8. an upper face mask; 9. a locking member; 10. a drive gear; 11. a large rib plate; 11-0 parts of large rib plate bosses; 12. a small rib plate; 13. a ring rod; 14. a lifting limit switch; 15. a pallet fork; 16. a push rod fork; 17. a push rod; 18. a support shaft; 19. a circular rod mounting sleeve; 20. a handle is operated.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Reference will now be made in detail to embodiments of the present invention, 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 illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Example (b): as shown in fig. 1 to 10, the electric walk-behind truck mainly includes a multi-layer frame, a fork 15 for picking up a load, a lift driving mechanism for driving the fork 15, and an operating handle 20 for operation, wherein the operating handle 20 is provided on one side of the frame and above the lift driving mechanism, and the fork 15 is provided on the other side of the frame. The frame mainly comprises a frame coaming 1, a frame front panel 2 and an upper cover 8, in order to make the structure of the electric porter small and compact, convenient to move and reduce the mutual influence between electric appliances, the frame front panel 2 is arranged at the front end of the frame coaming 1 and forms a cavity structure with the frame coaming 1, an upper transverse plate 3 and a battery bottom plate 4 are arranged in the cavity structure, in order to facilitate the placement of parts, the cavity structure is divided into a plurality of layers by arranging an interval between the upper transverse plate 3 and the battery bottom plate 4, the multi-layer structure is an upper layer positioned above the upper transverse plate 3, a middle layer positioned between the battery bottom plate 4 and the upper transverse plate 3 and a lower layer positioned below the battery bottom plate 4, the limited space is fully utilized under the condition of keeping the small size of the vehicle body, and a hydraulic system and a charger are arranged on the upper layer, the battery box is installed in the intermediate level, and electrical apparatus control system installs in the lower floor, is about to mainly generate heat the source and distributes to the upper strata, and electrical apparatus generates heat the source and distributes from high to low, cuts off from top to bottom through battery bottom plate 4 and last horizontal plate 3 and does not influence each other and make whole car performance more stable. The battery box is arranged in an integral mode, and various types of batteries can be conveniently selected and installed like lithium batteries (the middle of the battery box of a traditional vehicle type is separated).

The shock pad 7 is fixedly arranged on the surface of the battery bottom plate 4, the influence of the carrier on the battery in the moving process is reduced by arranging the shock pad 7, and the service life of the battery is ensured.

In order to reduce the difficulty of assembly and disassembly and reduce the assembly and disassembly steps, the frame coaming 1 is arranged to comprise a first mounting plate 1-2, a second mounting plate 1-3, a third mounting plate 1-4, a fourth mounting plate 1-5 and a fifth mounting plate 1-6 are symmetrically arranged on two sides of the central axis of the first mounting plate 1-2, the second mounting plate 1-3, the third mounting plate 1-4, the fourth mounting plate 1-5 and the fifth mounting plate 1-6 are sequentially connected to form the frame coaming 1 with a semi-surrounding structure, and the frame coaming 1 is integrally formed, so that the assembly effect is ensured and the assembly steps are reduced. Above-mentioned frame front panel 2 demountable installation is at 1 opening part of above-mentioned frame bounding wall, and 8 detachable cladding of the above-mentioned face guard is at 1 top of above-mentioned frame bounding wall, overhauls and when maintaining when needs to above-mentioned part, only need dismantle frame front panel 2 can, simple and convenient easy operation can effectively promote maintenance efficiency, and user's use experience is strengthened, is favorable to the popularization and the application of above-mentioned electric carrier in carrier technical field.

In order to avoid stress concentration, the structural strength of the frame coaming 1 is ensured, the service life of the frame coaming is further ensured, and the use cost is reduced, wherein the joints of the first mounting plate 1-2, the second mounting plate 1-3, the third mounting plate 1-4, the fourth mounting plate 1-5 and the fifth mounting plate 1-6 are all arranged in a round angle mode. The round angle arrangement mode can also make the whole beautiful degree of the frame coaming 1 higher. The surfaces of the fifth mounting plates 1-6 are arranged in a radian mode, so that on one hand, the internal space is larger, on the other hand, the attractiveness is higher, and the electric truck is favorable for popularization and application in the technical field of trucks. Go up face guard 8 and can be made by stereoplasm elastic material, its shape and the structural shape looks adaptation at frame bounding wall 1 top make it can directly suit at frame bounding wall 1 top, need not use other parts, can effectively improve dismouting efficiency, guarantee simultaneously face guard 8's structural strength, the object of avoiding the high altitude to drop causes the damage to the spare part of carrier inside.

Furthermore, in order to facilitate the installation of the frame front panel 2, the frame front panel 2 is provided with a front panel installation hole 2-2; the upper transverse plate side plate mounting holes 3-4 are arranged corresponding to the front panel mounting holes 2-2, and the mounting of the frame front panel 2 is realized by penetrating locking pieces 9 into the upper transverse plate side plate mounting holes 3-4 and the front panel mounting holes 2-2.

Further, in order to effectively dissipate heat inside the cavity structure formed by the frame surrounding plate 1 and the frame surrounding plate 1, reduce the influence of temperature on the use of electric appliances, guarantee the service life of each electric appliance and reduce the use cost, the side edge of the frame surrounding plate 1 corresponding to the upper layer position is provided with a heat dissipation groove 1-1. The heat dissipation grooves 1-1 are in a waist-shaped hole shape, the heat dissipation grooves 1-1 are arranged in parallel, the distance between every two adjacent heat dissipation grooves 1-1 is equal, the space is coherent, the heat dissipation is facilitated for the heat in the cavity structure to dissipate, and the heat dissipation effect is guaranteed.

In order to facilitate the disassembly and assembly, the front panel 2 of the frame is provided with a front panel grab groove 2-1, and the front panel grab groove 2-1 is arranged close to the top of the front panel 2 of the frame. In order to ensure the structural stability of the hydraulic system and the charger arranged on the upper layer and reduce the falling probability of the hydraulic system and the charger in the using process, the upper transverse plate 3 comprises an upper transverse plate main plate 3-1 and an upper transverse plate side plate 3-2, the upper transverse plate main plate 3-1 and the upper transverse plate side plate 3-2 are arranged in a mutually perpendicular mode, the hydraulic system and the charger on the upper layer are prevented from falling, and meanwhile the space of the upper layer structure is ensured. In order to avoid stress concentration at the joint of the upper transverse plate main plate 3-1 and the upper transverse plate side plate 3-2 and reduce the probability of fracture of the joint of the upper transverse plate main plate 3-1 and the upper transverse plate side plate 3-2, the joint of the upper transverse plate main plate 3-1 and the upper transverse plate side plate 3-2 is arranged in a round angle mode. In order to facilitate the disassembly and assembly, the upper cross plate side plate 3-2 is provided with an upper cross plate gripper groove 3-3. The front panel grip groove 2-1 and the upper cross plate grip groove 3-3 are designed according to human engineering. The upper transverse plate main plate 3-1 and the upper transverse plate side plate 3-2 are integrally formed, so that the structural strength of the upper transverse plate 3 is ensured, the service life of the upper transverse plate is further ensured, and the use cost is reduced.

Go up diaphragm 3 and can be the drawer type setting, can be through forming the mounting groove on the 1 inner wall of frame bounding wall promptly, the width of mounting groove and the thickness looks adaptation of last diaphragm 3 through installing last diaphragm 3 in the mounting groove, realize going up diaphragm 3's quick assembly disassembly.

In order to facilitate the installation of an electric appliance control system, a fork-shaped vertical plate 5 is installed in a lower layer below the battery bottom plate 4, a vertical plate connecting hole 5-0 corresponding to the front panel mounting hole 2-2 is formed in the fork-shaped vertical plate 5, and the frame front panel 2 is fixed by penetrating a locking piece 9 into the vertical plate connecting hole 5-0 and the front panel mounting hole 2-2. In order to avoid the influence on the carried objects, the front panel mounting holes 2-2 can be set to be countersunk head screw holes, the locking pieces 9 are countersunk head screws with simple structures, the countersunk head screws are embedded in the countersunk head screw holes, and when the front panel 2 of the frame needs to be disassembled, the batteries, electrical components and the like can be maintained and replaced only by screwing out the countersunk head screws.

An electric control installation plate 6 is installed on the fork-frame vertical plate 5, in order to enable the electric control system to better radiate and reduce the influence of temperature on the electric control system, the electric control installation plate 6 comprises an electric control installation main plate 6-1, an electric control installation support plate 6-2 is arranged on the back of the electric control installation main plate 6-1, namely the side contacted with the fork-frame vertical plate 5, the electric control installation support plate 6-2 and the electric control installation main plate 6-1 are arranged vertically, the electric control installation support plates 6-2 are multiple, and an electric control radiating groove 6-3 is formed between every two adjacent electric control installation support plates 6-2.

The lifting driving mechanism comprises a driving gear 10, a large rib plate 11, a small rib plate 12, a push rod fork 16 and a push rod 17, wherein the two large rib plates 11, the two small rib plates 12, the two push rod forks 16 and the two push rods 17 are symmetrically arranged along the central axis of the driving gear 10 and are used for driving the two fork forks 15 to take off and land simultaneously. The large rib plate 11 is installed at the output end of the driving gear 10, and in order to ensure the stability of the lifting driving mechanism in the driving process, the small rib plate 12 and the large rib plate 11 are both installed on a supporting shaft 18, the push rod fork 16 is connected between the small rib plate 12 and the push rod 17, and the push rod 17 is installed at the bottom of the fork 15 to drive the lifting of the fork 15.

The large rib plate 11 is provided with a large rib plate boss 11-0, the large rib plate boss 11-0 and the large rib plate 11 are integrally formed, a lifting limit switch 14 is arranged above the large rib plate boss 11-0, when the lifting limit switch 14 contacts the large rib plate boss 11-0, namely when the oil cylinder is lifted to a specified height, the limiting effect can be effectively achieved, the lifting is not carried out, the damage rate of the oil cylinder is reduced, the service life is ensured, the use cost is reduced, and the popularization and the application of the electric carrier in the technical field of carriers are facilitated.

In order to ensure the using effect of the lifting limit switch 14 and the stability of the lifting limit switch in the installation process, the lifting limit switch 14 is installed on a fork frame vertical plate 5, and the fork frame vertical plate 5 is installed above the fork 15 and is arranged close to the large rib plate 11. The fork-mounted vertical plate 5 is provided with a switch mounting position 5-1 and a switch mounting hole 5-2, the switch mounting hole 5-2 is arranged at the side edge of the switch mounting position 5-1, a lifting limit switch 14 is partially fixedly mounted on the fork-mounted vertical plate 5 through the switch mounting hole 5-2, the other part is positioned above a large rib plate 11 through the switch mounting position 5-1, and the large rib plate 11 is arranged corresponding to the switch mounting position 5-1. The switch mounting position 5-1 is set to be rectangular and is matched with the lifting limit switch 14 in shape, so that the lifting limit switch 14 can pass through the switch mounting position conveniently.

In order to fix the position of the lifting limit switch 14, a plurality of switch mounting holes 5-2 can be arranged, in the embodiment, two switch mounting holes 5-2 are arranged, and the distance between the two switch mounting holes 5-2 is similar to the height of the switch mounting position 5-1.

The lifting limit switch 14 is a microswitch, the microswitch is RV-166S-1C25 in model, the microswitch is small in size, small in occupied space, light in weight, high in precision and strong in practicability, the use cost is reduced while the use can be effectively guaranteed, and the popularization and the application of the electric carrier in the technical field of carriers are facilitated.

In order to reduce the abrasion of the supporting shaft 18 and ensure the service life of the supporting shaft 18, a circular ring rod 13 is sleeved outside the supporting shaft 18. Furthermore, a circular ring rod mounting sleeve 19 is sleeved outside the support shaft 18 outside the small rib plate 12. In order to ensure the driving effect of the lifting driving mechanism, the central axis of the supporting shaft 18 and the central axis of the ring rod 13 are located on the same straight line, and the central axis of the ring rod mounting sleeve 19 and the central axis of the supporting shaft 18 are located on the same straight line.

Walk-behind electric pallet truck in this embodiment, through setting up diaphragm 3 and battery bottom plate 4, separate into the multilayer with the cavity structure, install hydraulic system and charger on the upper strata, the installation of battery box lies in the intermediate level, electrical apparatus control system installs in the lower floor, make the whole ingenious compactness of frame structure, distribute by high to low through generating heat the source with electrical apparatus, and cut off it by last to down, make electrical apparatus each other not influence in the use, thereby guarantee the performance of electric pallet truck's whole car, guarantee electric pallet truck's result of use, be favorable to above-mentioned electric pallet truck in the popularization and application of carrier technical field.

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

Although the reference numerals in the figures are used more here: 1. a frame coaming; 1-1, a heat dissipation groove; 1-2, a first mounting plate; 1-3, a second mounting plate; 1-4, a third mounting plate; 1-5, a fourth mounting plate; 1-6, a fifth mounting plate; 2. a frame front panel; 2-1, a front panel gripper groove; 2-2, front panel mounting holes; 3. an upper transverse plate; 3-1, an upper transverse plate main plate; 3-2, an upper cross plate side plate; 3-3, an upper cross plate gripper groove; 3-4, mounting holes of an upper transverse plate; 4. a battery chassis; 5. a fork riser; 5-0, connecting holes of the vertical plate; 5-1, a switch mounting position; 5-2, switch mounting holes; 6. an electric control mounting plate; 6-1, installing a main board in an electric control mode; 6-2, electrically controlling a mounting support plate; 6-3, an electric control heat dissipation groove; 7. a shock pad; 8. an upper face mask; 9. a locking member; 10. a drive gear; 11. a large rib plate; 11-0 parts of large rib plate bosses; 12. a small rib plate; 13. a ring rod; 14. a lifting limit switch; 15. a pallet fork; 16. a push rod fork; 17. a push rod; 18. a support shaft; 19. a circular rod mounting sleeve; 20. operating handles and the like, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. Walking electric pallet truck, its characterized in that: the forklift comprises a frame, a fork (15) for forking goods, a lifting driving mechanism for driving the fork (15) and an operating handle (20) for operation, wherein the frame is arranged in a multilayer structure, the fork (15) is used for forking goods, the operating handle (20) is arranged on one side of the frame and above the lifting driving mechanism, and the fork (15) is arranged on the other side of the frame; the frame includes frame bounding wall (1) and frame front panel (2), frame front panel (2) install in frame bounding wall (1) and with frame bounding wall (1) forms a cavity structure, and the installation is equipped with diaphragm (3) and battery bottom plate (4) in the cavity structure, go up diaphragm (3) with it separates the cavity structure for the multilayer to be the interval setting between battery bottom plate (4), is located respectively go up the upper strata of diaphragm (3) top, be located battery bottom plate (4) with go up intermediate level between diaphragm (3) and be located lower floor of battery bottom plate (4) below, hydraulic system and charger are installed in the upper strata, and the battery box is installed in the intermediate level, and electrical control system installs in lower floor.

2. The walking-type electric cart according to claim 1, wherein: the lifting driving mechanism comprises a driving gear (10), a large rib plate (11), a small rib plate (12), a push rod fork (16) and a push rod (17), the large rib plate (11) is installed at the output end of the driving gear (10), the small rib plate (12) and the large rib plate (11) are both installed on a supporting shaft (18), the push rod fork (16) is connected between the small rib plate (12) and the push rod (17), and the push rod (17) is installed at the bottom of the fork (15); the large rib plate (11) is provided with a large rib plate boss (11-0), and a lifting limit switch (14) is arranged above the large rib plate boss (11-0); when the lifting limit switch (14) contacts the large rib plate boss (11-0), the fork (15) stops lifting.

3. The walking-type electric cart according to claim 2, wherein: the upper transverse plate (3) comprises an upper transverse plate main plate (3-1) and upper transverse plate side plates (3-2), the upper transverse plate main plate (3-1) and the upper transverse plate side plates (3-2) are perpendicular to each other, and the connecting part of the upper transverse plate main plate (3-1) and the upper transverse plate side plates (3-2) is arranged in a round angle mode.

4. The walking-type electric cart according to claim 3, wherein: the battery is characterized in that a fork-shaped vertical plate (5) is arranged in a lower layer below the battery bottom plate (4), an electric control mounting plate (6) is arranged on the fork-shaped vertical plate (5), the electric control mounting plate (6) comprises an electric control mounting main plate (6-1), the electric control mounting main plate (6-1) is provided with an electric control mounting support plate (6-2), the electric control mounting support plate (6-2) and the electric control mounting main plate (6-1) are perpendicular to each other, the electric control mounting support plates (6-2) are multiple, and an electric control radiating groove (6-3) is formed between every two adjacent electric control mounting support plates (6-2).

5. The walking-type electric cart according to claim 4, wherein: the lifting limit switch (14) is arranged on the fork frame vertical plate (5), the fork frame vertical plate (5) is further provided with a switch installation position (5-1) and a switch installation hole (5-2), the switch installation hole (5-2) is arranged on the side edge of the switch installation position (5-1), and the large rib plate (11) is arranged corresponding to the switch installation position (5-1).

6. The walking-type electric cart according to claim 5, wherein: and the side edge of the frame coaming (1) is provided with a heat dissipation groove (1-1).

7. The walking-type electric cart according to claim 6, wherein: the heat dissipation grooves (1-1) are in a waist-shaped hole shape, and the heat dissipation grooves (1-1) are arranged in parallel.

8. The walk-behind electric cart according to claim 7, wherein: the lifting limit switch (14) is a microswitch.

9. The walking-type electric cart according to claim 8, wherein: the frame further comprises an upper cover (8), and the upper cover (8) is detachably coated on the top of the frame enclosing plate (1).

10. The walk-behind electric cart according to claim 9, wherein: the frame coaming (1) comprises a first mounting plate (1-2), a second mounting plate (1-3), a third mounting plate (1-4), a fourth mounting plate (1-5) and a fifth mounting plate (1-6) are symmetrically arranged on two sides of the central axis of the first mounting plate (1-2), the second mounting plate (1-3), the third mounting plate (1-4), the fourth mounting plate (1-5) and the fifth mounting plate (1-6) are sequentially connected to form a semi-surrounding structure of the frame coaming (1).