Trolley with extended function

Abstract

The utility model relates to the technical field of trolleys, in particular to a trolley with an expansion function, which comprises a bottom plate, universal wheels and a handle, an anti-collision component is arranged on the front side of the bottom plate, a storage groove is formed in the bottom plate, and symmetrically distributed extension plates are slidably arranged in the storage groove. A locking assembly is arranged between each extension plate and the bottom plate and comprises a clamping groove, a moving groove is formed in the inner wall of the storage groove, a limiting disc is arranged in the moving groove, a pushing assembly is arranged between the two extension plates, and the pushing assembly comprises a motor; the output end of the motor penetrates through the side wall of the bottom plate and is connected with a two-way screw rod, the outer sides of the parts, opposite in rotation direction, of the two ends of the two-way screw rod are both sleeved with moving blocks, the two sides of the two moving blocks are each hinged to a push block, and the other side of each push block is rotationally connected with a hinge block. Through the cooperation of the structure, the purpose of expanding the area of the bottom plate of the trolley during carrying is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of handcart technology, specifically relating to a handcart with extended functions. Background Technology

[0002] A handcart is a transport vehicle that is pushed or pulled by human power. The appearance of a handcart typically includes a frame, wheels, and handles. Handcarts are widely used in production and daily life. They have advantages such as low cost, simple maintenance, convenient operation, and light weight. They can work in places where motor vehicles are inconvenient to use and are very convenient for moving lighter items over short distances.

[0003] However, most existing handcarts have a fixed base structure and do not have an expansion function. When there are many items to be moved, it is not convenient to adjust the size of the base according to the number of items, requiring multiple round trips and reducing work efficiency. Now, a handcart with an expansion function is provided to alleviate the above-mentioned problems. Summary of the Invention

[0004] This invention utilizes the cooperation of a pushing component and a locking component to allow the extension plate to be moved out of the storage slot, thereby expanding the area of ​​the handcart's base plate during transport.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A handcart with extended functionality includes a base plate with casters mounted on the bottom and a handle mounted on the top. It also includes an anti-collision component on the front side of the base plate, a storage groove inside the base plate, symmetrically distributed extension plates slidingly within the storage groove, a locking component between each extension plate and the base plate, the locking component including a slot, a moving groove on the inner wall of the storage groove containing a limiting plate, and a pushing component between two extension plates. The pushing component includes a motor, the motor output end of which passes through the side wall of the base plate and is connected to a bidirectional screw. Moving blocks are fitted on the outer sides of the oppositely rotating ends of the bidirectional screw. Push blocks are hinged to both sides of each of the two moving blocks, and hinge blocks are rotatably connected to the other side of each push block.

[0007] Preferably, the pushing component further includes a T-shaped block, and the other side of each of the hinge blocks is connected to the T-shaped block. A first sliding groove is provided on the adjacent side of the two extension plates. A slider is connected to the bottom of each of the two moving blocks. A second sliding groove is provided on the bottom surface of the storage groove located below the two sliders.

[0008] Preferably, the locking assembly further includes a connecting shaft, which is located at the center of the limiting plate. Tension springs are provided on both sides of the connecting shaft located between the moving groove and the limiting plate. One end of the connecting shaft passes through the limiting plate and is connected to a locking block. The other end of the connecting shaft is connected to a limiting stop block. A through groove is provided on the outer side of the inner wall of the moving groove, which passes through the bottom plate. A pull ring is connected to the outer side of the limiting stop block.

[0009] Preferably, the anti-collision assembly includes an anti-collision plate, and mounting plates are installed on the adjacent sides of the anti-collision plate and the base plate. Several groups of two mounting plates are arranged horizontally at equal intervals. A damper and a buffer spring sleeved on the outside of the damper are connected between the two mounting plates in each group.

[0010] Preferably, an anti-slip plate is installed on the top of the side of the extension plate away from the base plate, and a side plate is installed on the upper surface of the base plate located on the bottom side of the handle.

[0011] Preferably, several slots are horizontally provided along the extension plate, both the slots and the blocks are cylindrical, the limiting block is a rectangular prism, and the pull ring is smaller than the through slot.

[0012] Compared with the prior art, the gain effect of this utility model is as follows:

[0013] 1. By setting up a pushing component, the double-sided screw is driven by the motor to rotate. The double-sided screw drives two moving blocks to move, while the slider slides along the second slide groove. The moving blocks and the push block cooperate to push the extension plate out of the storage slot, increasing the space for placing items on the base plate surface and improving work efficiency.

[0014] 2. By setting a locking component, pulling the pull ring causes the limit block to move. The limit block drives the limit plate and the locking block to move synchronously through the connecting shaft, while compressing the tension spring until the limit block moves out of the through slot. At this time, rotating the pull ring and rotating the limit block 90 degrees will bring the side of the limit block near the limit plate into contact with the outer surface of the base plate, and at the same time, pull the locking block out of the slot. Then, rotating the limit block 90 degrees will make the limit block slide back into the through slot. Under the action of the tension spring, the locking block will be driven to insert into the slot, improving the stability of the extension plate after the position is adjusted and preventing the items from shaking and being damaged.

[0015] 3. By setting up anti-collision components, the anti-collision plate will first reduce the impact force when colliding, and then the damper and buffer spring will be used to achieve damping and buffering, further reducing the impact and preventing damage to the objects inside the handcart. Attached Figure Description

[0016] Figure 1 This is a first-view structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This is an embodiment of the present utility model. Figure 1 A partial structural diagram of A;

[0019] Figure 4 This is a schematic diagram of the internal structure of the base plate according to an embodiment of the present utility model;

[0020] Figure 5 This is a partial sectional view of the base plate and extension plate according to an embodiment of the present utility model;

[0021] Figure 6 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the local structure of B;

[0022] Figure 7 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the local structure of C.

[0023] In the diagram: Base plate 1; Storage slot 11; Extension plate 2; Pushing assembly 3; Motor 31; Bidirectional screw 32; Moving block 33; Push block 34; Hinge block 35; T-block 36; First slide groove 37; Slider 38; Second slide groove 39; Locking assembly 4; Slot 41; Slot 42; Moving groove 43; Limiting plate 44; Connecting shaft 45; Tension spring 46; Limiting stop 47; Pull ring 48; Through groove 49; Anti-collision assembly 5; Anti-collision plate 51; Mounting plate 52; Damper 53; Buffer spring 54; Anti-detachment plate 6; Side plate 7; Handle 8; Caster wheel 9. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example

[0026] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0027] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances; any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention.

[0029] Please see Figure 1-7 A handcart with extended functionality includes a base plate 1, with casters 9 fixedly installed around the bottom of the base plate 1. A handle 8 is fixedly installed on one side of the upper surface of the base plate 1, and a side plate 7 is fixedly installed on the upper surface of the base plate 1 located on the bottom side of the handle 8. An anti-collision component 5 is provided on the front side of the base plate 1 to protect the base plate 1 from collision damage. A storage groove 11 is provided inside the base plate 1, and symmetrically distributed extension plates 2 are slidably arranged inside the storage groove 11. An anti-detachment plate 6 is fixedly installed on the top of the side of the extension plate 2 away from the base plate 1. A locking component 4 is provided between each extension plate 2 and the base plate 1 to fix the position of the base plate 1, and a pushing component 3 is provided between two extension plates 2.

[0030] Please see Figure 1-7 The pushing component 3 includes a motor 31. The motor 31 is fixedly installed on the outer surface of the base plate 1 near the handle 8. One end of the output shaft of the motor 31 passes through the side wall of the base plate 1 and is fixedly connected to a bidirectional screw 32. The other end of the bidirectional screw 32 is rotatably connected to the inner wall of the storage groove 11. The outer sides of the oppositely rotating parts of the two ends of the bidirectional screw 32 are fitted with moving blocks 33. The two sides of the two moving blocks 33 are respectively hinged to push blocks 34 that drive the extension plate 2 to move. The other side of each push block 34 is rotatably connected to a hinge block 35.

[0031] Please see Figure 1-7The pushing component 3 also includes a T-shaped block 36. A T-shaped block 36 is fixedly connected to the other side of each hinge block 35. A first sliding groove 37 is opened on the adjacent side of the two extension plates 2. The two T-shaped blocks 36 are slidably connected to the two first sliding grooves 37 respectively. A slider 38 is fixedly connected to the bottom of the two moving blocks 33. A second sliding groove 39 is opened on the bottom surface of the storage groove 11 located below the two sliders 38 respectively. The two sliders 38 are slidably connected to the two second sliding grooves 39 respectively. By setting the sliders 38 and the second sliding grooves 39, the movement stability of the moving blocks 33 can be improved, and the sliding of the moving blocks 33 in the storage groove 11 can play a limiting and guiding role.

[0032] Please see Figure 1-7 The locking component 4 includes a slot 41. The extension plate 2 has a slot 41 on the side away from the anti-collision component 5. Several slots 41 are arranged horizontally at equal intervals. The inner wall of the storage slot 11 has a moving slot 43 located opposite to the slot 41. The moving slot 43 is slidably connected to a limiting plate 44. A connecting shaft 45 is rotatably arranged at the center of the limiting plate 44 via a bearing. Tension springs 46 are arranged on both sides of the connecting shaft 45. The two ends of the tension springs 46 are fixedly connected to the inner wall of the moving slot 43 and the outer surface of the limiting plate 44, respectively. One end of the connecting shaft 45 passes through the limiting plate 44 and is fixedly connected to a locking block 42. The locking block 42 engages with the slot 41. The other end of the connecting shaft 45 is fixedly connected to a limiting stop 47. A through slot 49 is opened on the outer side of the inner wall of the moving slot 43, which is connected to the bottom plate 1. The limiting stop 47 is slidably engaged with the through slot 49. A pull ring 48 is fixedly connected to the outer side of the limiting stop 47.

[0033] Furthermore, both the slot 41 and the block 42 are cylindrical, the limit block 47 is a rectangular column, and the pull ring 48 is smaller than the through slot 49, so that the limit block 47 can be moved out of the through slot 49 by pulling the pull ring 48 along the through slot 49.

[0034] Please see Figure 1-7 The anti-collision component 5 includes an anti-collision plate 51. The front end of the base plate 1 is movably provided with an anti-collision plate 51 to buffer the impact of the collision. Mounting plates 52 are fixedly installed on the adjacent sides of the anti-collision plate 51 and the base plate 1. Several groups of two mounting plates 52 are arranged horizontally at equal intervals. A damper 53 and a buffer spring 54 sleeved on the outside of the damper 53 are fixedly connected between the two mounting plates 52 in each group.

[0035] Working principle: When using the handcart, if there are too many items to transport, first pull the pull ring 48 to move the limit block 47 along the through groove 49. The limit block 47 drives the limit plate 44 and the locking block 42 to move synchronously through the connecting shaft 45. The limit plate 44 compresses the tension spring 46 until the limit block 47 moves out of the through groove 49. At this time, rotate the pull ring 48 to rotate the limit block 47 ninety degrees, so that the side of the limit block 47 near the limit plate 44 abuts against the outer surface of the base plate 1. The base plate 1 limits and fixes the limit block 47, and at the same time, the locking block 42 moves out of the locking groove 49. 1. Pull out from the storage slot 11; then start the motor 31 to run. The output end of the motor 31 drives the bidirectional screw 32 to rotate. The bidirectional screw 32 drives the two moving blocks 33 to move. At the same time, the slider 38 slides along the second slide groove 39. The moving blocks 33 and the push block 34 cooperate to push the extension plate 2 out of the storage slot 11, increasing the space for placing items on the surface of the base plate 1. Then, rotate the limiting block 47 ninety degrees so that the limiting block 47 slides and cooperates with the through groove 49 again. Under the action of the tension spring 46, the locking block 42 is driven to insert into the locking slot 41, which facilitates the limiting and fixing of the extension plate 2 after the position is adjusted.

Claims

1. A handcart with extended functionality, comprising a base plate (1), wherein casters (9) are mounted on the bottom of the base plate (1), and a handle (8) is mounted on the top of the base plate (1), characterized in that, The base plate (1) has a front anti-collision component (5). A storage groove (11) is provided inside the base plate (1). Symmetrically distributed extension plates (2) slide within the storage groove (11). A locking component (4) is provided between each extension plate (2) and the base plate (1). The locking component (4) includes a slot (41). A moving groove (43) is provided on the inner wall of the storage groove (11). A limiting plate (44) is provided within the moving groove (43). A pushing assembly (3) is provided between the extension plates (2). The pushing assembly (3) includes a motor (31). The output end of the motor (31) passes through the side wall of the base plate (1) and is connected to a bidirectional screw (32). The two ends of the bidirectional screw (32) are fitted with moving blocks (33) on the outer sides of the opposite rotation. Push blocks (34) are hinged to both sides of the two moving blocks (33). A hinge block (35) is rotatably connected to the other side of each push block (34).

2. A handcart with extended functionality according to claim 1, characterized in that, The pushing component (3) also includes a T-shaped block (36), and the other side of each hinge block (35) is connected to the T-shaped block (36). The two extension plates (2) are provided with a first groove (37) on their adjacent sides. The bottom of the two moving blocks (33) is connected to a slider (38). The bottom surface of the storage groove (11) located below the two sliders (38) is provided with a second groove (39).

3. A handcart with extended functionality according to claim 1, characterized in that, The locking assembly (4) also includes a connecting shaft (45). The connecting shaft (45) is located at the center of the limiting plate (44). Tension springs (46) are provided on both sides of the connecting shaft (45) located between the moving groove (43) and the limiting plate (44). One end of the connecting shaft (45) passes through the limiting plate (44) and is connected to a locking block (42). The other end of the connecting shaft (45) is connected to a limiting stop (47). A through groove (49) is opened on the outer side of the inner wall of the moving groove (43) and passes through the bottom plate (1). A pull ring (48) is connected to the outer side of the limiting stop (47).

4. A handcart with extended functionality according to claim 1, characterized in that, The anti-collision assembly (5) includes an anti-collision plate (51). Mounting plates (52) are installed on the adjacent sides of the anti-collision plate (51) and the base plate (1). Several groups of two mounting plates (52) are arranged horizontally at equal intervals. A damper (53) and a buffer spring (54) sleeved on the outside of the damper (53) are connected between the two mounting plates (52) in each group.

5. A handcart with extended functionality according to claim 1, characterized in that, An anti-detachment plate (6) is installed on the top of the side of the extension plate (2) away from the base plate (1), and a side plate (7) is installed on the upper surface of the base plate (1) located on the bottom side of the handle (8).

6. A handcart with extended functionality according to claim 3, characterized in that, The card slot (41) is horizontally provided along the extension plate (2) in several ways. Both the card slot (41) and the card block (42) are cylindrical. The structure of the limiting block (47) is a rectangular column. The size of the pull ring (48) is smaller than the size of the through groove (49).

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