Trolley

Abstract

The utility model relates to the field of trolleys, and discloses a trolley which comprises a main frame, two fixing rods are transversely fixed in the main frame, rotating rods are rotatably arranged on the outer walls of the fixing rods, an auxiliary frame is arranged on the rear side of the main frame, and limiting plates are fixed to the left side and the right side of the lower portion of the auxiliary frame respectively. A limiting shaft is rotatably arranged on one side of the limiting plate, the bottom end of the rotating rod and the outer wall of the limiting shaft are rotatably arranged, a clamping column is transversely fixed to the upper portion of the main frame, and the clamping column is matched with an opening of the limiting plate. In the utility model, due to the deformable design of the trolley, the trolley can adapt to different use environments and task requirements, for example, the trolley can be operated in a narrow space or the form of the trolley body can be adjusted according to the size of goods, and a user can adjust the form of the trolley according to the size and the shape of the goods, so that the loading space can be distributed and used more reasonably.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to a trolley. Background Art

[0002] A handcart, also known as a handcart, dolly or handcart, is a small, usually human-powered transport vehicle that is used to move goods over short distances, especially in warehouses, factories, farms, gardens, construction sites, and retail stores.

[0003] In the existing trolley designs, most trolleys have a fixed structure and cannot be adjusted in shape according to different usage scenarios and needs. This limits the scope of application of the trolley and cannot provide sufficient convenience and flexibility in specific working environments or storage conditions.

[0004] For example, when different types of cargo need to be carried, the shape cannot be adjusted to adapt to different loading requirements. Utility Model Content

[0005] The utility model aims to provide a trolley to solve the problem that the shape cannot be adjusted to adapt to different loading requirements when different types of goods need to be carried.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a trolley, including a main frame, two fixing rods are transversely fixed inside the main frame, a rotating rod is rotatably arranged on the outer wall of the fixing rod, a sub-frame is arranged on the rear side of the main frame, and limiting plates are respectively fixed on the left and right sides below the sub-frame, a limiting shaft is rotatably arranged on one side of the limiting plate, the bottom end of the rotating rod is rotatably arranged with the outer wall of the limiting shaft, and a clamping column is transversely fixed on the upper part of the main frame, and the clamping column is adapted to the opening of the limiting plate.

[0007] Preferably, a support rod is vertically fixed at the inner middle position of the main frame, two hooks are fixed on the top outer wall of the support rod, a first screw is threadedly connected on the top outer wall of the auxiliary frame, and the top outer wall of the auxiliary frame is adapted to the opening of the hook.

[0008] Preferably, two second screw rods are threadedly connected to the outer wall of the fixed rod, wherein every two second screw rods form a group, and each group of second screw rods is respectively located at left and right sides of the top end of the rotating rod.

[0009] Preferably, a fixing block is fixed on the outer wall of the support rod, a clamping plate is slidably provided on one side of the fixing block, a limiting column is fixed on the outer wall of the support rod, a tension spring is fixed between the limiting column and the clamping plate, and an opening of the clamping plate is adapted to the middle cross bar of the sub-frame.

[0010] Preferably, fixed wheels are fixed to the left and right sides of the rear bottom surface of the main frame, and universal wheels are fixed to the left and right sides of the bottom surface of the auxiliary frame.

[0011] Preferably, a blocking frame is fixed to the front bottom surface of the main frame.

[0012] Compared with the prior art, the trolley adopting the above technical solution has the following beneficial effects:

[0013] 1. During use, the staff member steps on the cross bar under the auxiliary frame with one foot. At this time, the staff member can push the main frame forward. During the movement, the staff member can tilt the main frame backward until the hook is engaged with the top surface of the first screw. At this time, the hook will be located between the two first screws. The hook is limited by the first screw to ensure that the hook will not shake left and right with the top surface of the first screw during the pushing process. When the hook is engaged with the top surface of the auxiliary frame, the rotating rod will be in a tilted state, and a triangle will be formed between the rotating rod, the auxiliary frame and the main frame, thereby improving the stability of the overall main frame.

[0014] During use, if it is necessary to change to another form, the staff can separate the hook from the top surface of the auxiliary frame and continue to place the main frame downward. At this time, the rotating rod will rotate from vertical to horizontal through the rotation setting with the fixed rod and the limit shaft. At this time, the staff can clamp the clamping column with the opening of the limit plate, so that the main frame is placed in a horizontal plane as a whole, thereby changing the overall form of the main frame for the second time;

[0015] The deformable design of the trolley enables it to adapt to different usage environments and task requirements, such as being able to operate in a narrow space or adjust the body shape according to the size of the cargo. Users can adjust the shape of the trolley according to the volume and shape of the cargo, thereby allocating and using the loading space more reasonably;

[0016] 2. During use, when resetting is required, the staff pulls the clamping plate, and the bottom end of the clamping plate drives the top end of the tension spring to move upward. At this time, the tension spring will be in a stretched state. After the clamping plate is pulled open, the staff can fold the sub-frame and the main frame. At this time, the middle cross bar of the sub-frame will correspond to the opening of the clamping plate up and down. The staff releases the clamping plate, and the clamping plate is clamped with the middle cross bar of the sub-frame through the contraction of the tension spring, thereby fixing the position of the sub-frame and resetting the entire device.

[0017] 3. During use, the second screw is used to limit the top of the rotating rod, thereby ensuring that the rotating rod will not slide on the outer wall of the fixed rod during the rotation process, ensuring stability during use. When the universal wheel is used, the staff can better control the direction when pushing the entire device, improving the maneuverability of the cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of an embodiment.

[0019] Figure 2 It is a disassembled stereoscopic view of the subframe of the embodiment.

[0020] Figure 3 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] Figure 4 It is a disassembled stereoscopic view of the clamping plate of the embodiment.

[0022] Figure 5 It is a three-dimensional diagram of the main frame transformation of the embodiment.

[0023] In the figure: 1. main frame; 2. fixed rod; 3. rotating rod; 4. auxiliary frame; 5. limit plate; 6. clamping column; 7. blocking frame; 8. support rod; 9. fixed block; 10. clamping plate; 11. limit column; 12. tension spring; 13. hook; 14. first screw; 15. limit shaft; 16. second screw; 17. universal wheel; 18. fixed wheel. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1-Figure 5 As shown, the trolley includes a main frame 1, two fixing rods 2 are transversely fixed inside the main frame 1, and a rotating rod 3 is rotatably arranged on the outer wall of the fixing rod 2, a sub-frame 4 is arranged on the rear side of the main frame 1, and limit plates 5 are fixed on the left and right sides below the sub-frame 4 respectively, and a limit shaft 15 is rotatably arranged on one side of the limit plate 5, and the bottom end of the rotating rod 3 is rotatably arranged with the outer wall of the limit shaft 15, and a clamping column 6 is transversely fixed on the upper part of the main frame 1, and the clamping column 6 is adapted to the opening of the limit plate 5, a support rod 8 is vertically fixed at the middle position inside the main frame 1, and two hooks 13 are fixed on the top outer wall of the support rod 8, and a first screw 14 is threadedly connected to the top outer wall of the sub-frame 4, and the top outer wall of the sub-frame 4 is adapted to the opening of the hook 13.

[0026] During use, the staff member steps on the cross bar under the auxiliary frame 4 with one foot, and the staff member can push the main frame 1 forward. During the movement, the staff member can tilt the main frame 1 backward until the hook 13 is engaged with the top surface of the first screw 14. At this time, the hook 13 will be located between the two first screws 14, and the hook 13 will be limited by the first screw 14 to ensure that the hook 13 will not shake left and right with the top surface of the first screw 14 during the pushing process. When the hook 13 is engaged with the top surface of the auxiliary frame 4, the rotating rod 3 will be in a tilted state, and a triangle will be formed between the rotating rod 3, the auxiliary frame 4 and the main frame 1, thereby improving the stability of the overall main frame 1 (this form is not shown in the figure).

[0027] During use, if it is necessary to change to another form, the staff can separate the hook 13 from the top surface of the auxiliary frame 4 and continue to place the main frame 1 downward. At this time, the rotating rod 3 will rotate from vertical to horizontal through the rotation setting with the fixed rod 2 and the limit shaft 15. At this time, the staff can clamp the clamping column 6 with the opening of the limit plate 5, so that the main frame 1 is placed in a horizontal plane as a whole, thereby changing the overall form of the main frame 1 for the second time (this form is Figure 5 shown);

[0028] The deformable design of the trolley enables it to adapt to different usage environments and task requirements, such as being able to operate in a narrow space or adjust the body shape according to the size of the cargo. Users can adjust the shape of the trolley according to the volume and shape of the cargo, thereby allocating and using the loading space more reasonably.

[0029] like Figure 1 Figure 4 As shown, a fixing block 9 is fixed on the outer wall of the support rod 8, a clamping plate 10 is slidably provided on one side of the fixing block 9, a limiting column 11 is fixed on the outer wall of the support rod 8, a tension spring 12 is fixed between the limiting column 11 and the clamping plate 10, and the opening of the clamping plate 10 is adapted to the middle cross bar of the sub-frame 4.

[0030] During use, when resetting is required, the staff pulls the clamping plate 10, at which time the bottom end of the clamping plate 10 drives the top end of the tension spring 12 to move upward, and the tension spring 12 will be in a stretched state. After the clamping plate 10 is pulled open, the staff can fold the sub-frame 4 and the main frame 1, at which time the middle cross bar of the sub-frame 4 will correspond to the opening of the clamping plate 10 up and down. The staff releases the clamping plate 10, and the tension spring 12 contracts to clamp the clamping plate 10 and the middle cross bar of the sub-frame 4, thereby fixing the position of the sub-frame 4 and resetting the entire device.

[0031] like Figure 1-Figure 3As shown, a blocking frame 7 is fixed to the front bottom surface of the main frame 1, and two second screws 16 are threadedly connected to the outer wall of the fixing rod 2, wherein each two second screws 16 form a group, and each group of second screws 16 is respectively located at the left and right sides of the top end of the rotating rod 3, and fixed wheels 18 are respectively fixed to the left and right sides of the rear bottom surface of the main frame 1, and universal wheels 17 are respectively fixed to the left and right sides of the bottom surface of the auxiliary frame 4.

[0032] During use, the second screw 16 is used to limit the top of the rotating rod 3, thereby ensuring that the rotating rod 3 does not slide on the outer wall of the fixed rod 2 during the rotation process, thereby ensuring stability during use. When the universal wheel 17 is used, the staff can better control the direction when pushing the entire device, thereby improving the maneuverability of the cart.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trolley comprising a main frame (1), characterized in that: Two fixing rods (2) are transversely fixed inside the main frame (1), and a rotating rod (3) is rotatably arranged on the outer wall of the fixing rod (2). A sub-frame (4) is arranged on the rear side of the main frame (1), and limit plates (5) are respectively fixed on the left and right sides below the sub-frame (4), and a limit shaft (15) is rotatably arranged on one side of the limit plate (5). The bottom end of the rotating rod (3) is rotatably arranged with the outer wall of the limit shaft (15), and a clamping column (6) is transversely fixed on the upper part of the main frame (1), and the clamping column (6) is adapted to the opening of the limit plate (5).

2. The trolley according to claim 1, characterized in that: A support rod (8) is vertically fixed at the middle position inside the main frame (1), two hooks (13) are fixed on the top outer wall of the support rod (8), a first screw rod (14) is threadedly connected to the top outer wall of the auxiliary frame (4), and the top outer wall of the auxiliary frame (4) is adapted to the opening of the hook (13).

3. The trolley according to claim 1, characterized in that: Two second screw rods (16) are threadedly connected to the outer wall of the fixed rod (2), wherein each two second screw rods (16) form a group, and each group of second screw rods (16) is respectively located at the left and right sides of the top end of the rotating rod (3).

4. The trolley according to claim 2, characterized in that: A fixing block (9) is fixed on the outer wall of the support rod (8), a clamping plate (10) is slidably provided on one side of the fixing block (9), a limiting column (11) is fixed on the outer wall of the support rod (8), a tension spring (12) is fixed between the limiting column (11) and the clamping plate (10), and an opening of the clamping plate (10) is adapted to the middle cross bar of the auxiliary frame (4).

5. The trolley according to claim 1, characterized in that: Fixed wheels (18) are respectively fixed on the left and right sides of the rear bottom surface of the main frame (1), and universal wheels (17) are respectively fixed on the left and right sides of the bottom surface of the auxiliary frame (4).

6. The trolley according to claim 1, characterized in that: A blocking frame (7) is fixed to the front bottom surface of the main frame (1).

Images