Handcart locking structure

Abstract

The utility model discloses a trolley locking structure which comprises a trolley plate, the lower end of the trolley plate is detachably connected with a bottom plate, the bottom plate is fixedly connected with a shaft bracket, the shaft bracket is rotatably connected with a first rotating shaft, the first rotating shaft is fixedly connected with wheels, the first rotating shaft is fixedly connected with clamping teeth, and the clamping teeth are fixedly connected with the trolley plate. A clamping pin is movably connected to the shaft frame and used for fixing the clamping teeth, a driving assembly is arranged on the shaft frame and comprises a pedal, a rotating groove is formed in the shaft frame, a second rotating shaft is rotationally connected into the rotating groove, the pedal is fixedly connected to the second rotating shaft, and a spring is arranged on the second rotating shaft in a sleeving mode. One end of the spring is fixedly connected to the outer wall of the second rotating shaft, and the other end of the spring is fixedly connected to the inner wall of the rotating groove. The trolley has the advantages that the clamping pin is driven by the driving assembly, so that the rotating shaft is locked, the trolley cannot move, and goods damage caused by trolley sliding is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of handcart technology, and in particular relates to a handcart locking structure. Background Technology

[0002] A handcart is a freight vehicle that is either manually propelled or machine-driven. A handcart mainly consists of wheels, a frame, handles, and shelves. These parts work together to enable the handcart to carry and transport goods. Usually, a locking mechanism is installed on the handcart to stop it at any time, making it easy to move the goods transported on the handcart.

[0003] However, existing technologies have some problems: existing handcart locking mechanisms usually use brake pads installed at the wheels to brake through the friction between the brake pads and the wheels. However, when handling heavy goods, the friction between the brake pads and the wheels may not be enough to keep the handcart locked, which may lead to slippage, damage to goods, or even injury to workers. Therefore, we propose a handcart locking structure. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a handcart locking structure, which uses a drive component to drive a locking pin, thereby locking the rotating shaft, making the handcart unable to move and preventing it from slipping and causing damage to goods.

[0005] This utility model is implemented as follows: a handcart locking structure includes a cart plate, a base plate detachably connected to the lower end of the cart plate, an axle frame fixedly connected to the base plate, a first rotating shaft rotatably connected to the axle frame, a wheel fixedly connected to the first rotating shaft, a locking tooth fixedly connected to the first rotating shaft, a locking pin movably connected to the axle frame, the locking pin being used to fix the locking tooth, and a drive assembly provided on the axle frame, the drive assembly being used to drive the locking pin to move.

[0006] Optionally, a fixing block is fixedly connected to one side of the shaft frame, a slide rail is provided inside the fixing block, a driving block is slidably connected inside the slide rail, a spring is fixedly connected to the lower end of the driving block, and the spring is fixedly connected to the inner wall of the slide rail.

[0007] Optionally, the locking pin is fixedly connected to the lower end of the drive block, the spring is sleeved on the locking pin, and a drive rod is fixedly connected to the upper end of the drive block. Both the drive rod and the locking pin pass through the fixed block.

[0008] Optionally, the fixing block is provided with a sliding groove, and a fixing rod is slidably connected in the sliding groove. The fixing rod is rotatably connected to the inner wall of the sliding track of the fixing block. The inner wall of the sliding groove is provided with a slot, and the fixing rod is engaged in the slot.

[0009] Optionally, the drive assembly includes a pedal, a rotating groove is provided on the shaft frame, a second rotating shaft is rotatably connected in the rotating groove, the pedal is fixedly connected to the second rotating shaft, a spring is sleeved on the second rotating shaft, one end of the spring is fixedly connected to the outer wall of the second rotating shaft, and the other end of the spring is fixedly connected to the inner wall of the rotating groove.

[0010] Optionally, a limiting block is fixedly connected to the shaft frame, the limiting block is used to restrict the rotation of the pedal, and a transmission rod is rotatably connected to the shaft frame, the transmission rod is used to connect the pedal and the locking pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is equipped with a locking pin and a locking tooth. During normal operation of the handcart, the locking pin is located outside the locking tooth and will not affect the rotation of the locking groove. At this time, the fixing rod is located at the bottom of the drive block slide groove. When it is necessary to lock the handcart, the drive component presses the drive rod, and the drive rod moves downward under force, causing the drive block compression spring to slide downward along the fixing block slide. When the drive block moves downward, the fixing rod will slide along the slide groove on the drive block. When the fixing rod moves to the locking groove of the drive block, the fixing rod will fix the drive block to prevent it from rebounding due to the spring force. At the same time, when the drive block moves downward, it will drive the locking pin to move downward, thereby causing the locking pin to lock the locking tooth, making the locking tooth unable to rotate, and thus preventing the first rotating shaft and wheel from rotating. At this time, the fixing rod fixes the drive block, and the locking pin is also fixed, thereby locking the handcart and preventing the handcart from moving.

[0013] 2. This utility model is equipped with a drive component. When the operator presses the pedal with his foot, the pedal drives the second rotating shaft to tighten the spring and rotate. After the pedal rotates, it drives the transmission rod to rotate. After the transmission rod rotates, it presses down on the drive rod to lock the handcart. After the pedal is released, the spring will rebound and drive the second rotating shaft to rotate, which in turn drives the pedal to rotate, causing the pedal to return to its original state under the action of the limit block.

[0014] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the bearing provided by this utility model;

[0017] Figure 3 This is a cross-sectional view of the fixing block provided by this utility model;

[0018] Figure 4 This is a sectional view of the bearing seat provided by this utility model.

[0019] In the diagram: 1. Vehicle plate; 2. Base plate; 3. Axle bracket; 4. First rotating shaft; 5. Wheel; 6. Clamping tooth; 7. Clamping pin; 8. Drive assembly; 801. Pedal; 802. Second rotating shaft; 803. Spring; 804. Limiting block; 805. Transmission rod; 9. Fixing block; 10. Drive block; 11. Drive rod; 12. Spring; 13. Slide groove; 14. Fixing rod. Detailed Implementation

[0020] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0021] like Figures 1 to 4 As shown in the figure, the present invention provides a handcart locking structure, including a cart plate 1. The cart plate 1 is a flat surface, usually made of a sturdy material such as steel, aluminum or plastic. Its main function is to support items. This structure enables the handcart to carry and move various items stably.

[0022] Furthermore, a base plate 2 is detachably connected to the lower end of the vehicle panel 1. The base plate 2 is usually made of steel and has mounting holes. The base plate 2 is usually installed and fixed to the vehicle panel 1 by fixing bolts.

[0023] Furthermore, an axle frame 3 is fixedly connected to the base plate 2. The axle frame 3 serves as a support structure for the wheel 5. Its main function is to fix the wheel 5 and ensure that it can rotate stably. The axle frame 3 is usually made of high-strength materials, such as steel or aluminum alloy, to withstand the pressure from the wheel 5 and the load, ensuring that the wheel 5 can maintain the integrity and stability of the structure when carrying heavy objects.

[0024] Furthermore, a first rotating shaft 4 is rotatably connected to the axle bracket 3, a wheel 5 is fixedly connected to the first rotating shaft 4, a locking tooth 6 is fixedly connected to the first rotating shaft 4, and a locking pin 7 is movably connected to the axle bracket 3 for fixing the locking tooth 6.

[0025] Specifically, a fixing block 9 is fixedly connected to one side of the shaft bracket 3. A slide is provided inside the fixing block 9. A driving block 10 is slidably connected inside the slide. A spring 12 is fixedly connected to the lower end of the driving block 10. The spring 12 is fixedly connected to the inner wall of the slide.

[0026] Furthermore, the locking pin 7 is fixedly connected to the lower end of the drive block 10, the spring 12 is sleeved on the locking pin 7, and the drive rod 11 is fixedly connected to the upper end of the drive block 10. Both the drive rod 11 and the locking pin 7 pass through the fixing block 9.

[0027] Furthermore, a sliding groove 13 is provided on the fixing block 9, and a fixing rod 14 is slidably connected in the sliding groove 13. The fixing rod 14 is rotatably connected to the inner wall of the sliding track of the fixing block 9. A slot is provided in the inner wall of the sliding groove 13, and the fixing rod 14 is engaged in the slot.

[0028] Specifically, during normal operation of the handcart, the locking pin 7 is positioned outside the locking tooth 6 and does not affect the rotation of the slot. At this time, the fixing rod 14 is positioned at the bottom of the slide groove 13 of the drive block 10. When it is necessary to lock the handcart, the drive rod 11 is pressed by the drive assembly 8. The drive rod 11 moves downward under force, causing the drive block 10 to compress the spring 12 and slide downward along the slide of the fixing block 9. When the drive block 10 moves downward, the fixing rod 14 slides along the slide groove 13 on the drive block 10. When the fixing rod 14 moves to the slot of the drive block 10, the fixing rod 14 will fix the drive block 10 to prevent it from rebounding due to the spring force of the spring 12. At the same time, when the drive block 10 moves downward, it will cause the locking pin 7 to move downward, thereby causing the locking pin 7 to lock the locking tooth 6, preventing the locking tooth 6 from rotating. This also prevents the first rotating shaft 4 and the wheel 5 from rotating. At this time, the fixing rod 14 fixes the drive block 10, and the locking pin 7 is also fixed, thereby locking the handcart and preventing the handcart from moving.

[0029] Furthermore, when it is necessary to unlock the handcart, the drive rod 11 is pressed again by the drive assembly 8, and the drive block 10 will move downward, thereby causing the fixing rod 14 to disengage from the slot. At this time, the drive block 10 will be pushed upward by the spring force of the spring 12, thereby driving the locking pin 7 to move upward, so that the locking pin 7 no longer engages with the locking tooth 6. At this time, the handcart is no longer locked and can be driven normally. At the same time, the fixing rod 14 will also move back to the bottom of the slide groove 13 of the drive block 10.

[0030] Furthermore, a drive assembly 8 is provided on the shaft frame 3. The drive assembly 8 is used to drive the locking pin 7 to move. The drive assembly 8 includes a foot pedal 801. A rotating groove is provided on the shaft frame 3. A second rotating shaft 802 is rotatably connected in the rotating groove. The foot pedal 801 is fixedly connected to the second rotating shaft 802. A spring 803 is sleeved on the second rotating shaft 802. One end of the spring 803 is fixedly connected to the outer wall of the second rotating shaft 802, and the other end of the spring 803 is fixedly connected to the inner wall of the rotating groove.

[0031] Furthermore, a limiting block 804 is fixedly connected to the axle frame 3. The limiting block 804 is used to restrict the rotation of the pedal 801. A transmission rod 805 is rotatably connected to the axle frame 3. The transmission rod 805 is used to connect the pedal 801 and the locking pin 7.

[0032] Specifically, the worker presses the foot pedal 801, causing the foot pedal 801 to drive the second rotating shaft 802 to tighten the spring 803 and rotate. After the foot pedal 801 rotates, it drives the transmission rod 805 to rotate. After the transmission rod 805 rotates, it presses down on the drive rod 11 to lock the handcart. After releasing the foot pedal 801, the spring 803 will rebound and drive the second rotating shaft 802 to rotate, which in turn drives the foot pedal 801 to rotate, causing the foot pedal 801 to rotate back and return to its original state under the action of the limit block 804.

[0033] The working principle of this utility model is as follows:

[0034] This utility model is equipped with a locking pin 7 and a locking tooth 6. During normal operation of the handcart, the locking pin 7 is positioned outside the locking tooth 6 and will not affect the rotation of the locking groove. At this time, the fixing rod 14 is positioned at the bottom end of the slide groove 13 of the drive block 10. When it is necessary to lock the handcart, the drive rod 11 is pressed by the drive assembly 8. The drive rod 11 is forced to move downward, causing the drive block 10 to compress the spring 12 and slide downward along the slide of the fixing block 9. When the drive block 10 moves downward, the fixing rod 14 will slide along the upper part of the drive block 10. When the slide groove 13 slides, when the fixing rod 14 moves to the slot of the drive block 10, the fixing rod 14 will fix the drive block 10 to prevent it from rebounding due to the spring force of the spring 12. At the same time, when the drive block 10 moves downward, it will drive the locking pin 7 to move downward, thereby causing the locking pin 7 to lock the locking tooth 6, so that the locking tooth 6 cannot rotate, and thus the first rotating shaft 4 and the wheel 5 cannot rotate. At this time, the fixing rod 14 fixes the drive block 10, and the locking pin 7 is also fixed, thereby locking the handcart and preventing the handcart from moving.

[0035] This utility model is equipped with a drive assembly 8. When the operator presses the foot pedal 801, the foot pedal 801 drives the second rotating shaft 802 to tighten the spring 803 and rotate. After the foot pedal 801 rotates, it drives the transmission rod 805 to rotate. After the transmission rod 805 rotates, it presses down on the drive rod 11 to lock the handcart. After the foot pedal 801 is released, the spring 803 will rebound and drive the second rotating shaft 802 to rotate, which in turn drives the foot pedal 801 to rotate, so that the foot pedal 801 rotates back and returns to its original state under the action of the limit block 804.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handcart locking structure, comprising a cart plate (1), characterized in that: The lower end of the vehicle plate (1) is detachably connected to a base plate (2). A shaft frame (3) is fixedly connected to the base plate (2). A first rotating shaft (4) is rotatably connected to the shaft frame (3). A wheel (5) is fixedly connected to the first rotating shaft (4). A locking tooth (6) is fixedly connected to the first rotating shaft (4). A locking pin (7) is movably connected to the shaft frame (3). The locking pin (7) is used to fix the locking tooth (6). A drive assembly (8) is provided on the shaft frame (3). The drive assembly (8) is used to drive the locking pin (7) to move.

2. The handcart locking structure according to claim 1, characterized in that: A fixing block (9) is fixedly connected to one side of the shaft frame (3). A slide is provided inside the fixing block (9). A driving block (10) is slidably connected inside the slide. A spring (12) is fixedly connected to the lower end of the driving block (10). The spring (12) is fixedly connected to the inner wall of the slide.

3. The handcart locking structure according to claim 2, characterized in that: The locking pin (7) is fixedly connected to the lower end of the drive block (10), the spring (12) is sleeved on the locking pin (7), and the drive rod (11) is fixedly connected to the upper end of the drive block (10). The drive rod (11) and the locking pin (7) are both set through the fixing block (9).

4. The handcart locking structure according to claim 3, characterized in that: The fixed block (9) has a sliding groove (13), and a fixed rod (14) is slidably connected in the sliding groove (13). The fixed rod (14) is rotatably connected to the inner wall of the sliding track of the fixed block (9). The inner wall of the sliding groove (13) has a slot, and the fixed rod (14) is engaged in the slot.

5. A handcart locking structure according to claim 1, characterized in that: The drive assembly (8) includes a pedal (801), a rotating groove is provided on the shaft frame (3), a second rotating shaft (802) is rotatably connected in the rotating groove, the pedal (801) is fixedly connected to the second rotating shaft (802), a spring (803) is sleeved on the second rotating shaft (802), one end of the spring (803) is fixedly connected to the outer wall of the second rotating shaft (802), and the other end of the spring (803) is fixedly connected to the inner wall of the rotating groove.

6. A handcart locking structure according to claim 5, characterized in that: A limiting block (804) is fixedly connected to the shaft frame (3). The limiting block (804) is used to restrict the rotation of the pedal (801). A transmission rod (805) is rotatably connected to the shaft frame (3). The transmission rod (805) is used to connect the pedal (801) and the locking pin (7).

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