A loading and unloading device suitable for electric carts

Abstract

This application discloses a loading and unloading device suitable for a power-assisted trolley, belonging to the field of power-assisted trolleys. The device includes a triangular mounting frame for mounting and fixing on the power-assisted trolley, a fork-like object disposed at the front end of the mounting frame and moving longitudinally along the inclined surface of the front end of the mounting frame, and a lifting mechanism disposed on the mounting frame for driving the fork-like object to move. The fork-like object includes a pair of fixed arms connected to the movable end of the lifting mechanism, a shovel arm hinged to the bottom end of the fixed arms, and push rods connected at both ends to the shovel arm and the fixed arms respectively for driving the shovel arm to rotate and press the shoveled goods against the inclined surface of the mounting frame. This loading and unloading device for power-assisted trolleys decomposes vertical lifting into longitudinal movement through inclined surface guidance, achieving double labor-saving in conjunction with a lever clamping mechanism. After the shovel arm rotates into position, it forms a rigid triangular support, maintaining the clamping state without continuous power supply.

Description

Technical Field

[0001] This application relates to the field of power-assisted trolley technology, specifically an unloading device suitable for power-assisted trolleys. Background Technology

[0002] A power-assisted trolley is a device that uses electricity or other auxiliary power devices to help users push goods or people. Its core function is to improve transportation efficiency and convenience by providing traction, supporting the weight of goods or people, and adapting to various terrains and environments.

[0003] While existing electric pushcarts save effort in transportation, loading and unloading still require manual handling, which wastes manpower and affects efficiency.

[0004] Therefore, this application provides a loading and unloading device suitable for a trolley to solve the above problems. Utility Model Content

[0005] This application provides an unloading device suitable for power-assisted trolleys, aiming to solve the problem mentioned in the background art that although existing power-assisted trolleys save labor in transportation, loading and unloading still require manual handling, which wastes manpower and affects efficiency.

[0006] To achieve the above objectives, this application provides the following technical solution: a loading and unloading device suitable for a power-assisted trolley, comprising a triangular mounting frame for mounting and fixing on the power-assisted trolley, a fork-like object disposed at the front end of the mounting frame and moving longitudinally along the inclined surface of the front end of the mounting frame, and a lifting mechanism disposed on the mounting frame for driving the fork-like object to move. The fork-like object includes a pair of fixed arms connected to the movable end of the lifting mechanism, a shovel arm hinged to the bottom end of the fixed arms, and push rods connected at both ends to the shovel arm and the fixed arms respectively for driving the shovel arm to rotate and press the shoveled goods against the inclined surface of the mounting frame. In this way, the vertical lifting is decomposed into longitudinal movement by the inclined surface guide, and the lever clamping mechanism achieves double labor saving. After the shovel arm rotates into place, it forms a rigid triangular support, which can maintain the clamping state without continuous power supply.

[0007] Preferably, the back and bottom surfaces of the fixing frame are perpendicular, and both the back and bottom surfaces of the fixing frame have a plurality of mounting holes.

[0008] Preferably, the lifting mechanism includes a lifting seat that moves longitudinally along the inclined surface of the fixed frame and a drive assembly fixedly mounted on the fixed frame for driving the lifting seat to move.

[0009] Preferably, the drive assembly includes a motor fixedly mounted on the base plate of the fixed frame, a winch rotatably mounted on the base plate of the fixed frame and connected to the output shaft of the motor, a sling connected at both ends to the winch and the lifting seat respectively, and a pulley rotatably mounted on the top of the fixed frame for changing the direction of the sling.

[0010] Preferably, the pulley is connected to the fixed frame via a fixed rod, and the pulley is rotatably connected to the fixed rod.

[0011] Preferably, the lifting seat has track wheels on both sides that are slidably connected to the fixed frame, and the fixed frame has track grooves on both sides that correspond to the track wheels.

[0012] Preferably, the front end of the lifting seat has a slide block that is slidably connected to the fixed arm for adjusting the spacing of the fixed arm. The slide block is provided with an adjustment mechanism for driving the two fixed arms to move closer or further apart. The adjustment mechanism includes a bidirectional lead screw that is rotatably mounted on the slide block and whose two ends are respectively screwed to the two fixed arms, and an adjustment motor that is fixedly mounted on the slide block and whose output shaft is connected to the bidirectional lead screw.

[0013] Preferably, a baffle for preventing goods from contacting the push rod and the adjustment mechanism is fixedly installed at the front end of the fixing frame, and a clearance groove for accommodating the movement of the shovel arm is provided at the front end of the baffle.

[0014] This unloading device, suitable for trolleys, breaks down vertical lifting into longitudinal movement through inclined plane guidance. Combined with a lever clamping mechanism, it achieves double labor saving. After the shovel arm flips into place, it forms a rigid triangular support, which can maintain the clamping state without continuous power supply. The entire loading and unloading process is automated, saving manpower and improving efficiency. Attached Figure Description

[0015] Figure 1 A front view schematic diagram of an unloading device suitable for a power-assisted trolley;

[0016] Figure 2 This is a rear view schematic diagram of an unloading device suitable for a power-assisted trolley;

[0017] Figure 3 This is a schematic diagram of the internal structure of a baffle of a loading device suitable for a trolley.

[0018] In the picture:

[0019] 1. Fixture; 11. Mounting holes; 12. Track groove;

[0020] 2. Forked spade; 21. Spade arm; 22. Fixed arm; 23. Push rod; 24. Guard; 241. Clearance groove;

[0021] 25. Adjustment mechanism; 251. Double-acting lead screw; 252. Adjustment motor;

[0022] 3. Lifting mechanism; 31. Lifting seat; 311. Track wheel; 312. Slide seat; 32. Drive assembly; 321. Motor; 322. Winch; 323. Sling; 33. Pulley; 331. Fixed rod. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a loading and unloading device suitable for a power-assisted trolley, such as... Figures 1-3 As shown, the unloading device suitable for a power-assisted trolley includes a triangular mounting frame 1 for mounting and fixing on the power-assisted trolley, a fork shovel 2 disposed at the front end of the mounting frame 1 and moving longitudinally along the inclined surface of the front end of the mounting frame 1, and a lifting mechanism 3 disposed on the mounting frame 1 for driving the fork shovel 2 to move. The fork shovel 2 includes a pair of fixed arms 22 connected to the movable end of the lifting mechanism 3, a shovel arm 21 hinged to the bottom end of the fixed arms 22, and a push rod 23 connected at both ends to the shovel arm 21 and the fixed arms 22 respectively for driving the shovel arm 21 to flip and press the shoveled goods against the inclined surface of the mounting frame 1.

[0025] In use, the triangular fixed frame 1 serves as the mounting base. Its inclined design conforms to the principles of mechanics, providing a longitudinal movement track for the forklift 2 and assisting the cargo to slide down during unloading through the inclined angle. The lifting mechanism 3 is connected to the fixed arm 22 of the forklift 2. When the lifting mechanism 3 is activated, the power is converted into longitudinal tension through the transmission device, driving the forklift 2 to rise along the inclined surface of the fixed frame 1. The shovel arm 21 is hinged to the fixed arm 22, and the push rod 23 connects the two ends respectively. During the ascent of the forklift 2, the push rod 23 extends and retracts, driving the shovel arm 21 to rotate, so that the contact surface between the shovel arm 21 and the bottom of the cargo gradually changes from a horizontal state to an inclined state, pressing the cargo tightly against the inclined surface of the fixed frame 1 to prevent it from slipping during transportation. After reaching the designated position, the lifting mechanism 3 reverses its action, the forklift 2 descends, the push rod 23 retracts, and the shovel arm 21 returns to a horizontal position. After losing support, the cargo automatically slides down along the inclined surface of the fixed frame 1.

[0026] It should be noted that the back and bottom surfaces of the mounting bracket 1 are perpendicular, and both the back and bottom surfaces of the mounting bracket 1 have several mounting holes 11. These mounting holes 11 provide a variety of installation methods, such as bolt fixing, welding or plugging. Through the mounting holes 11, the mounting bracket 1 can be stably installed on the frame of the trolley, ensuring the stability of the entire unloading device.

[0027] Specifically, the lifting mechanism 3 includes a lifting seat 31 that moves longitudinally along the inclined surface of the fixed frame 1, and a drive assembly 32 fixedly mounted on the fixed frame 1 for driving the lifting seat 31 to move. The drive assembly 32 includes a motor 321 fixedly mounted on the base plate of the fixed frame 1, a winch 322 rotatably mounted on the base plate of the fixed frame 1 and connected to the output shaft of the motor 321, a sling 323 with its two ends connected to the winch 322 and the lifting seat 31 respectively, and a pulley 33 rotatably mounted on the top of the fixed frame 1 for changing the direction of the sling 323. The pulley 33 is connected to a fixed rod 331. Connected to the fixed frame 1, the pulley 33 is rotatably connected to the fixed rod 331; the cooperation between the track wheel 311 and the track groove 12 reduces the frictional resistance when the lifting seat 31 moves, improves the moving efficiency, and ensures the accurate movement trajectory of the lifting seat 31, avoiding deviation or jamming; the motor 321 drives the winch 322 and the sling 323, realizing the automated lifting of the lifting seat 31, improving the unloading efficiency. The design of the pulley 33 optimizes the direction of force transmission, reduces the frictional resistance of the sling 323, and makes the operation of the lifting mechanism 3 smoother.

[0028] It should be noted that the lifting seat 31 has track wheels 311 on both sides that are slidably connected to the fixed frame 1, and the fixed frame 1 has track grooves 12 on both sides that correspond to the track wheels 311. The lifting seat 31 moves longitudinally along the inclined surface of the fixed frame 1, and its two sides are provided with track wheels 311, which cooperate with the track grooves 12 on both sides of the fixed frame 1 to ensure the stability and accuracy of the lifting seat 31 during movement.

[0029] Furthermore, the front end of the lifting seat 31 has a slide seat 312 that is slidably connected to the fixed arm 22 for adjusting the distance between the fixed arms 22. The slide seat 312 is provided with an adjustment mechanism 25 for driving the two fixed arms 22 to move closer or further apart. The adjustment mechanism 25 includes a bidirectional lead screw 251 that is rotatably mounted on the slide seat 312 and screwed to the two fixed arms 22 at both ends, and an adjustment motor 252 that is fixedly mounted on the slide seat 312 and whose output shaft is connected to the bidirectional lead screw 251. By adjusting the motor 252 to drive the bidirectional lead screw 251 to rotate, the two fixed arms 22 are driven to move closer or further apart, thereby changing the distance between the fixed arms 22 to accommodate goods of different sizes.

[0030] Furthermore, a baffle 24 is fixedly installed at the front end of the fixed frame 1 to prevent the cargo from contacting the push rod 23 and the adjustment mechanism 25. The front end of the baffle 24 has a clearance groove 241 to accommodate the movement of the shovel arm 21. The baffle 24 is used to cover the components of the push rod 23 and the adjustment mechanism 25. During the unloading process, the baffle 24 can prevent the cargo or debris from colliding with the components of the push rod 23 and the adjustment mechanism 25. The presence of the clearance groove 241 avoids the baffle 24 from blocking the movement of the shovel arm 21.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A loading and unloading device suitable for a trolley, characterized in that: It includes a triangular mounting bracket (1) for mounting and fixing on a trolley, a fork shovel (2) disposed at the front end of the mounting bracket (1) and moving longitudinally along the inclined surface of the front end of the mounting bracket (1), and a lifting mechanism (3) disposed on the mounting bracket (1) for driving the fork shovel (2) to move. The fork shovel (2) includes a pair of fixed arms (22) connected to the movable end of the lifting mechanism (3), a shovel arm (21) hinged to the bottom end of the fixed arms (22), and a push rod (23) connected at both ends to the shovel arm (21) and the fixed arms (22) respectively for driving the shovel arm (21) to flip so as to press the shoveled goods against the inclined surface of the mounting bracket (1).

2. The unloading device suitable for a trolley according to claim 1, characterized in that: The back and bottom surfaces of the fixing frame (1) are perpendicular, and both the back and bottom surfaces of the fixing frame (1) have a number of mounting holes (11).

3. The unloading device suitable for a trolley according to claim 2, characterized in that: The lifting mechanism (3) includes a lifting seat (31) that moves longitudinally along the inclined plane of the fixed frame (1) and a drive assembly (32) fixedly mounted on the fixed frame (1) for driving the lifting seat (31) to move.

4. The unloading device suitable for a trolley according to claim 3, characterized in that: The drive assembly (32) includes a motor (321) fixedly mounted on the base plate of the fixed frame (1), a winch (322) rotatably mounted on the base plate of the fixed frame (1) and connected to the output shaft of the motor (321), a sling (323) connected at both ends to the winch (322) and the lifting seat (31) respectively, and a pulley (33) rotatably mounted on the top of the fixed frame (1) for changing the direction of the sling (323).

5. The unloading device suitable for a trolley according to claim 4, characterized in that: The pulley (33) is connected to the fixed frame (1) via a fixed rod (331), and the pulley (33) is rotatably connected to the fixed rod (331).

6. The unloading device suitable for a trolley according to claim 5, characterized in that: The lifting seat (31) has track wheels (311) on both sides that are slidably connected to the fixed frame (1), and the fixed frame (1) has track grooves (12) on both sides that correspond to the track wheels (311).

7. The unloading device suitable for a trolley according to claim 6, characterized in that: The lifting seat (31) has a slide (312) at its front end that is slidably connected to the fixed arm (22) for adjusting the distance between the fixed arm (22). The slide (312) is provided with an adjustment mechanism (25) for driving the two fixed arms (22) to move closer or further apart. The adjustment mechanism (25) includes a bidirectional lead screw (251) rotatably mounted on the slide (312) and screwed to the two fixed arms (22) at both ends, and an adjustment motor (252) fixedly mounted on the slide (312) and whose output shaft is connected to the bidirectional lead screw (251).

8. The unloading device suitable for a trolley according to claim 7, characterized in that: The front end of the fixed frame (1) is fixedly equipped with a baffle (24) for preventing the cargo from contacting the push rod (23) and the adjustment mechanism (25). The front end of the baffle (24) is provided with a clearance groove (241) to accommodate the movement of the shovel arm (21).

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