Freight elevator

Abstract

The utility model relates to the technical field of freight elevators and discloses a freight elevator which comprises a moving trolley, the upper surface of the moving trolley is fixedly connected with a limiting frame, the upper surface of the limiting frame is fixedly connected with a fixing box, the inner wall of the fixing box is fixedly connected with a motor, and the output end of the motor is fixedly connected with a transmission lead screw. The outer wall of the transmission lead screw is in threaded connection with a threaded block, one side of the outer wall of the threaded block is fixedly connected with a fixing plate, the outer wall of the fixing plate is rotationally connected with a plurality of limiting wheels, and a clamping assembly is installed on the lower surface of the fixing plate. According to the utility model, after goods are placed on the supporting plate, the bidirectional screw rod is rotated to drive the moving plate, and the linkage connecting plate and the rotating plate drive the clamping plate to fix the goods; the motor drives the transmission lead screw, so that the threaded block drives the limiting wheel to slide along the limiting frame, and goods are stably lifted. According to the design, through the dual effects of mechanical linkage clamping and guiding limiting, the problem of displacement and falling in the cargo transportation process is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of freight hoisting technology, and in particular to a freight hoisting machine. Background Technology

[0002] A freight hoist is a vertical cargo transportation device consisting of a drive unit, guide rails, and a car. Driven by a motor, it lifts and lowers goods between floors. Its wide applications include: rapidly improving transportation efficiency and reducing manual handling time; reducing labor intensity and minimizing cargo damage and personnel risks; utilizing vertical space to increase warehouse utilization; being equipped with safety devices to ensure transportation safety; and being adaptable to different cargo sizes to meet diverse needs. It is an indispensable and efficient transportation tool in modern logistics.

[0003] Most current freight elevators use a method of placing goods directly on a lifting platform, relying on a drive device to move the platform and complete the vertical transport of the goods. However, this design lacks effective cargo securing devices. When encountering external forces such as shaking or bumps during transportation, the goods are prone to sliding, tipping, or even falling, which may not only damage the goods but also pose significant safety hazards. Therefore, a freight elevator is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a freight hoist, which aims to improve the problem that the existing hoist lacks a cargo fixing structure, which leads to cargo falling and being damaged when it encounters external forces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a freight hoist, comprising a mobile vehicle, a limit frame fixedly connected to the upper surface of the mobile vehicle, a fixed box fixedly connected to the upper surface of the limit frame, a motor fixedly connected to the inner wall of the fixed box, a transmission screw fixedly connected to the output end of the motor, a threaded block threadedly connected to the outer wall of the transmission screw, a fixed plate fixedly connected to one side of the outer wall of the threaded block, a plurality of limit wheels rotatably connected to the outer wall of the fixed plate, and a clamping assembly installed on the lower surface of the fixed plate;

[0006] The clamping assembly includes a support plate, one side of the outer wall of the support plate is fixedly connected to one side of the outer wall of the fixed plate, a rotating plate is rotatably connected to the lower surface of the support plate, a connecting plate is rotatably connected to the outer wall of the rotating plate, a limiting post is rotatably connected inside the connecting plate, a clamping plate is fixedly connected to the upper surface of the limiting post, and a driving assembly is installed on the lower surface of the support plate.

[0007] Furthermore, the driving assembly includes a limiting rod, the upper surface of which is fixedly connected to the lower surface of the support plate, a movable plate slidably connected to the outer wall of the limiting rod, the outer wall of the limiting rod being rotatably connected to the inside of the movable plate, a bidirectional lead screw being threadedly connected inside the movable plate, and the outer wall of the bidirectional lead screw being rotatably connected to the lower surface of the support plate.

[0008] Furthermore, a buffer block is slidably connected inside the clamping plate, an auxiliary component is installed on the outer wall of the clamping plate, and a pushing component is installed on the outer wall of the fixing plate.

[0009] Furthermore, the auxiliary component includes a hinge seat, the outer wall of which is rotatably connected to one side of the outer wall of the clamping plate. A hydraulic rod is fixedly connected to one side of the outer wall of the hinge seat, and a fixing rod is fixedly connected to the output end of the hydraulic rod. A connecting block is fixedly connected to the side of the clamping plate away from the hinge seat, and an abutment plate is rotatably connected inside the connecting block. A clamping block is rotatably connected to one side of the abutment plate.

[0010] Furthermore, the pushing assembly includes a hydraulic cylinder, one side of the outer wall of the hydraulic cylinder is fixedly connected to one side of the outer wall of the fixed plate, the output end of the hydraulic cylinder is disposed through the inside of the fixed plate, and the output end of the hydraulic cylinder is fixedly connected to a material ejection plate.

[0011] Furthermore, the outer wall of the fixing rod is rotatably connected to the inside of the contact plate, and the contact plate is used to push the clamping block to fix the goods.

[0012] Furthermore, the outer wall of the limiting post is slidably connected to the inside of the support plate, and the inside of the support plate is provided with a limiting groove for limiting the positioning of the limiting post.

[0013] Furthermore, the outer wall of the limiting wheel is slidably connected to the outer wall of the limiting frame, and the limiting wheel is used to limit the movement of the fixed plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by placing the goods above the support plate, and then rotating the bidirectional lead screw to move the moving plate towards the center, the connecting plate and the rotating plate will rotate in coordination, thereby achieving the effect of stabilizing the goods by driving the clamping plate. Then, by driving the transmission lead screw through the motor, the threaded block will drive the limit wheel to slide on the outer wall of the limit frame, thereby achieving the effect of stabilizing the lifting of the goods, thus improving the practicality of the machine.

[0016] 2. In this utility model, the hydraulic rod pushes the contact plate outside the fixed rod to rotate inside the connecting block, thereby achieving the effect of driving the clamping block to abut against the outside of the goods for auxiliary fixation. When the goods arrive at the position, the hydraulic cylinder pushes the ejector plate to slide inside the fixed plate, thereby driving the goods to slide above the support plate, thus achieving the effect of automatic unloading and improving the practicality of the machine. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a freight hoist proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the threaded block portion of a freight hoist proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting rod part of a freight hoist proposed in this utility model.

[0020] Legend:

[0021] 1. Moving cart; 2. Limiting frame; 3. Fixing box; 4. Motor; 5. Transmission screw; 6. Threaded block; 7. Fixing plate; 8. Limiting wheel; 9. Support plate; 10. Rotating plate; 11. Connecting plate; 12. Limiting rod; 13. Bidirectional screw; 14. Moving plate; 15. Limiting post; 16. Clamping plate; 17. Buffer block; 18. Hinge seat; 19. Hydraulic rod; 20. Fixing rod; 21. Connecting block; 22. Contact plate; 23. Clamping block; 24. Hydraulic cylinder; 25. Unloading plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a freight hoist, including a mobile vehicle 1, a limit frame 2 fixedly connected to the upper surface of the mobile vehicle 1, a fixed box 3 fixedly connected to the upper surface of the limit frame 2, a motor 4 fixedly connected to the inner wall of the fixed box 3, a transmission screw 5 fixedly connected to the output end of the motor 4, a threaded block 6 threadedly connected to the outer wall of the transmission screw 5, a fixed plate 7 fixedly connected to one side of the outer wall of the threaded block 6, a plurality of limit wheels 8 rotatably connected to the outer wall of the fixed plate 7, and a clamping assembly installed on the lower surface of the fixed plate 7;

[0024] The clamping assembly includes a support plate 9, one side of which is fixedly connected to the outer wall of a fixed plate 7. A rotating plate 10 is rotatably connected to the lower surface of the support plate 9. A connecting plate 11 is rotatably connected to the outer wall of the rotating plate 10. A limiting post 15 is rotatably connected inside the connecting plate 11. A clamping plate 16 is fixedly connected to the upper surface of the limiting post 15. A driving assembly is installed on the lower surface of the support plate 9. The driving assembly includes a limiting rod 12, the upper surface of which is fixedly connected to the lower surface of the support plate 9. A moving plate 14 is slidably connected to the outer wall of the limiting rod 12. The outer wall of the limiting post 15 is rotatably connected to the inside of the moving plate 14. A bidirectional lead screw 13 is threadedly connected inside the moving plate 14. The outer wall of the bidirectional lead screw 13 is rotatably connected to the lower surface of the support plate 9.

[0025] Specifically, a limit frame 2 is fixedly connected to the upper surface of the mobile vehicle 1. A fixed box 3 is fixedly connected to the upper surface of the limit frame 2. The fixed box 3 provides support and protection for the motor 4 and other important components, preventing damage to internal parts from external vibrations and impacts. The motor 4 is fixedly connected to the inner wall of the fixed box 3. The motor 4 provides power to drive the entire lifting system. A transmission screw 5 is fixedly connected to the output end of the motor 4. The transmission screw 5 transmits power through rotation and ensures the smooth operation of the transmission system. A threaded block 6 is threadedly connected to the outer wall of the transmission screw 5. The threaded block 6 achieves efficient power conversion through its movement in cooperation with the transmission screw 5. A fixed plate 7 is fixedly connected to one side of the outer wall of the threaded block 6. The fixed plate 7 serves to fix... The fixed plate 7 is rotatably connected to the outer wall of the fixed plate 7 to ensure the stable operation of other components. Multiple limit wheels 8 provide stable guidance and support, helping the entire hoist maintain good stability and accuracy during operation. The design of the limit wheels 8 allows the equipment to run smoothly on the track, avoiding deviation or malfunction. A clamping assembly is installed on the lower surface of the fixed plate 7. This assembly clamps the goods during hoist operation, ensuring they are securely and safely lifted. The clamping assembly includes a support plate 9, one side of which is fixedly connected to the outer wall of the fixed plate 7, providing support for the clamping assembly and ensuring the stability of the entire clamping system. A rotating plate 1 is rotatably connected to the lower surface of the support plate 9. The rotating plate 10 can precisely clamp or release goods by rotating. A connecting plate 11 is rotatably connected to the outer wall of the rotating plate 10. The connecting plate 11 further expands the adaptability of the clamping assembly by rotating. A limit post 15 is rotatably connected inside the connecting plate 11. The limit post 15 controls the movement range of the clamping plate 16 to ensure that the clamping plate 16 clamps the goods in the appropriate position. The clamping plate 16 is fixedly connected to the upper surface of the limit post 15. The clamping plate 16 can be adjusted to ensure that the goods are firmly clamped and can be released as needed. A drive assembly is installed on the lower surface of the support plate 9. The drive assembly is used to precisely control the movement and position of the clamping assembly. The drive assembly includes a limit rod 12. The upper surface of the limit rod 12 is fixedly connected to the support plate 9. On the lower surface, the limiting rod 12 provides stable support to prevent unstable movement of the clamping assembly during use. A movable plate 14 is slidably connected to the outer wall of the limiting rod 12. The movable plate 14 can slide smoothly as needed to adjust the position of the clamping assembly. The outer wall of the limiting post 15 is rotatably connected to the inside of the movable plate 14. The movable plate 14 ensures that the position of the limiting post 15 remains stable by rotating. A bidirectional lead screw 13 is threadedly connected inside the movable plate 14. The bidirectional lead screw 13 controls the precise movement of the movable plate 14 by rotating, so that the clamping assembly can be precisely adjusted. The outer wall of the bidirectional lead screw 13 is rotatably connected to the lower surface of the support plate 9, ensuring the stability and efficiency of the system, and allowing the position of the clamping plate 16 to be flexibly adjusted as needed.

[0026] Reference Figure 1 , Figure 2 and Figure 3 A buffer block 17 is slidably connected inside the clamping plate 16. An auxiliary component is installed on the outer wall of the clamping plate 16, and a pushing component is installed on the outer wall of the fixing plate 7. The auxiliary component includes a hinge seat 18, the outer wall of which is rotatably connected to one side of the outer wall of the clamping plate 16. A hydraulic rod 19 is fixedly connected to one side of the outer wall of the hinge seat 18, and a fixing rod 20 is fixedly connected to the output end of the hydraulic rod 19. A connecting block 21 is fixedly connected to the side of the clamping plate 16 away from the hinge seat 18. An abutment plate 22 is rotatably connected inside the connecting block 21, and a clamping block 23 is rotatably connected to one side of the abutment plate 22. The pushing component includes... A hydraulic cylinder 24 is fixedly connected to one side of the outer wall of a fixed plate 7. The output end of the hydraulic cylinder 24 is disposed inside the fixed plate 7 and is fixedly connected to a material ejector plate 25. The outer wall of a fixed rod 20 is rotatably connected to the inside of a contact plate 22, which is used to push a clamping block 23 to fix the goods. The outer wall of a limiting post 15 is slidably connected to the inside of a support plate 9, and a limiting groove for limiting the limiting post 15 is provided inside the support plate 9. The outer wall of a limiting wheel 8 is slidably connected to the outer wall of a limiting frame 2, which is used to limit the movement of the fixed plate 7.

[0027] Specifically, a buffer block 17 is slidably connected inside the clamping plate 16. The function of the buffer block 17 is to absorb the impact force generated when the clamping plate 16 clamps the goods, reduce the impact of external pressure on the equipment, ensure a smoother clamping operation, and avoid damage to the goods or equipment. The design of the buffer block 17 effectively improves the service life and stability of the equipment, ensuring that malfunctions are less likely to occur during operation. An auxiliary component is installed on the outer wall of the clamping plate 16, including a hinge seat 18. The outer wall of the hinge seat 18 is rotatably connected to one side of the outer wall of the clamping plate 16, providing a flexible movement mode, allowing the clamping plate 16 to be adjusted as needed, improving clamping accuracy. A hydraulic rod 19 is fixedly connected to one side of the outer wall of the hinge seat 18, and the output end of the hydraulic rod 19 is fixed. A fixed rod 20 and a hydraulic rod 19 are fixedly connected to the clamping plate 16, allowing the clamping plate 16 to be adjusted according to the hydraulic drive, providing sufficient force to clamp the goods. The use of the hydraulic system can achieve precise force control, avoiding over- or under-clamping during the clamping process. A connecting block 21 is fixedly connected to the side of the clamping plate 16 away from the hinge seat 18. An abutment plate 22 is rotatably connected inside the connecting block 21, and a clamping block 23 is rotatably connected to one side of the abutment plate 22. The abutment plate 22 is used to push the clamping block 23 to fix the goods. Through the cooperation of the abutment plate 22 and the clamping block 23, the clamping process can effectively grip and fix the goods, preventing the goods from slipping or falling during operation and providing better stability. Fixed plate 7 A pushing assembly is installed on the outer wall, including a hydraulic cylinder 24. One side of the hydraulic cylinder 24 is fixedly connected to one side of the outer wall of the fixed plate 7. The output end of the hydraulic cylinder 24 is disposed inside the fixed plate 7, and a material ejection plate 25 is fixedly connected to the output end of the hydraulic cylinder 24. The material ejection plate 25 is used to push the clamped goods to a designated position to complete the unloading process. The hydraulic pushing assembly provides efficient material pushing capability, enabling the goods to be transferred quickly and smoothly. The outer wall of the fixing rod 20 is rotatably connected to the inside of the contact plate 22. The cooperation between the fixing rod 20 and the contact plate 22 ensures that the contact plate 22 can accurately push the clamping block 23, thereby firmly fixing the goods and preventing them from shifting or falling during transportation. This design improves... To ensure the reliability of the clamping process and the stability of the goods during transportation and storage, the outer wall of the limiting post 15 is slidably connected to the inside of the support plate 9. The support plate 9 has a limiting groove for limiting the limiting post 15. The sliding design of the limiting post 15 ensures that the fixing components can be accurately positioned during the clamping operation, ensuring the correct cooperation of each component and avoiding operational difficulties due to misalignment. The outer wall of the limiting wheel 8 is slidably connected to the outer wall of the limiting frame 2. The limiting wheel 8 is used to limit the movement of the fixing plate 7, ensuring that the fixing plate 7 will not exceed the predetermined range during operation, avoiding unnecessary misoperation or damage. The limiting wheel 8 effectively controls the movement range of the equipment, ensuring that the system maintains efficient and stable operation during work.

[0028] Working principle: When using this hoist to lift and transport goods, first move the mobile vehicle 1 to the area where the goods need to be lifted. Then, place the goods on the support plate 9, and rotate the double-acting screw 13 to move the moving plate 14 towards the center, thereby moving the limiting column 15. At the same time, the movement of the limiting column 15 causes the outer buffer block 17 of the clamping plate 16 to clamp the goods for stability. Then, start the hydraulic rod 19 to drive the outer contact plate 22 of the fixed rod 20 to rotate inside the connecting block 21, so that the clamping block 23 abuts against the outside of the goods for auxiliary fixation. Then, start the motor 4, which drives the threaded block 6 on the outer wall of the transmission screw 5 to move. Then, the threaded block 6 drives the limiting wheel 8 on the outer wall of the fixed plate 7 to slide on the outer wall of the limiting frame 2, thereby facilitating the lifting of the goods.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A freight elevator comprising a moving car (1), characterized in that: The mobile vehicle (1) upper surface is fixedly connected with a limiting frame (2), the limiting frame (2) upper surface is fixedly connected with a fixed box (3), the fixed box (3) inner wall is fixedly connected with a motor (4), the motor (4) output end is fixedly connected with a transmission screw rod (5), the transmission screw rod (5) outer wall is threadedly connected with a threaded block (6), the threaded block (6) outer wall one side is fixedly connected with a fixed plate (7), the fixed plate (7) outer wall is rotatably connected with a plurality of limit wheels (8), the fixed plate (7) lower surface is installed with a clamping assembly; The clamping assembly includes a support plate (9), the support plate (9) is fixedly connected on one side of the outer wall of the fixed plate (7), the support plate (9) lower surface is rotatably connected with a rotating plate (10), the rotating plate (10) outer wall is rotatably connected with a connecting plate (11), the connecting plate (11) is rotatably connected with a limiting column (15) inside, the limiting column (15) upper surface is fixedly connected with a clamping plate (16), the support plate (9) lower surface is installed with a drive assembly.

2. A freight elevator according to claim 1, characterized in that: The drive assembly includes a limiting rod (12), the limiting rod (12) upper surface is fixedly connected on the lower surface of the support plate (9), the limiting rod (12) outer wall is slidably connected with a moving plate (14), the limiting column (15) is rotatably connected inside the moving plate (14), the moving plate (14) is threadedly connected with a bidirectional screw rod (13) inside, the bidirectional screw rod (13) outer wall is rotatably connected on the lower surface of the support plate (9).

3. A freight elevator according to claim 1, characterized in that: The clamping plate (16) inside is slidably connected with a buffer block (17), the clamping plate (16) outer wall is installed with an auxiliary assembly, the fixed plate (7) outer wall is installed with a pushing assembly.

4. A freight elevator according to claim 3, wherein: The auxiliary assembly includes a hinged seat (18), the hinged seat (18) is rotatably connected on one side of the outer wall of the clamping plate (16), the hinged seat (18) outer wall one side is fixedly connected with a hydraulic rod (19), the hydraulic rod (19) output end is fixedly connected with a fixed rod (20), the clamping plate (16) is fixedly connected with a connecting block (21) away from one side of the hinged seat (18), the connecting block (21) is rotatably connected with a resisting plate (22) inside, the resisting plate (22) one side is rotatably connected with a clamping block (23).

5. A freight elevator according to claim 3, wherein: The pushing assembly includes a hydraulic cylinder (24), the hydraulic cylinder (24) outer wall one side is fixedly connected on one side of the outer wall of the fixed plate (7), the hydraulic cylinder (24) output end is disposed in the fixed plate (7) inside, the hydraulic cylinder (24) output end is fixedly connected with a material withdrawing plate (25).

6. A freight elevator according to claim 4, wherein: The fixed rod (20) outer wall is rotatably connected inside the resisting plate (22), the resisting plate (22) is used for pushing the clamping block (23) to fix the goods.

7. A freight elevator according to claim 2, wherein: The limiting column (15) outer wall is slidably connected inside the support plate (9), the support plate (9) inside is provided with a limiting slot for limiting the limiting column (15).

8. A freight elevator according to claim 1, wherein: The limit wheel (8) outer wall is slidably connected on the outer wall of the limiting frame (2), the limit wheel (8) is used for limiting the movement of the fixed plate (7).

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