Foldable flat plate logistics trolley

Abstract

The utility model relates to the field of logistics trolleys, and discloses a foldable flat plate logistics trolley which comprises a trolley flat plate, a trolley handle, supporting columns and universal wheels, the trolley handle is arranged at the top of the trolley flat plate, the supporting columns are arranged at the bottom of the trolley flat plate, and the universal wheels are arranged at the bottoms of the supporting columns. A guardrail device for improving the bearing capacity of the trolley flat plate is arranged at the top of the trolley flat plate; the logistics trolley is compact and reasonable in structural design, the problem that a side door of an existing trolley is fixed and cannot be folded is solved, and the use efficiency of the logistics trolley is improved.

Description

Technical Field

[0001] The utility model relates to the field of logistics trolleys, in particular to a foldable flat-plate logistics trolley. Background Art

[0002] Flatbed logistics trolleys, also known as flatbed transporters or flatbed trolleys, are a type of transportation tool widely used in logistics, construction and other industries. It is lightweight, easy to operate, and has a large load capacity. It can flexibly shuttle through various complex environments to complete the transportation of goods. In the logistics industry, flatbed logistics trolleys are indispensable handling tools. It can be used with equipment such as cranes to transport machinery and equipment, and can also transport large and heavy goods on the road. Due to its convenient loading and unloading characteristics, flatbed logistics trolleys can load more goods and are deeply loved by customers. In addition, flatbed logistics trolleys are also highly flexible and can easily turn and reverse in narrow spaces. They are very suitable for handling and stacking in small venues. However, the existing trolleys have fixed side doors and cannot be folded, occupying a large space, with low inventory utilization, and inconvenient to use. For this reason, we propose a foldable flatbed logistics trolley. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a foldable flat-bed logistics trolley to solve the above-mentioned problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable flatbed logistics trolley, comprising a trolley flatbed, a trolley handle, a support column and a universal wheel, wherein the top of the trolley flatbed is provided with a trolley handle, and the bottom of the trolley flatbed is provided with a support column, and the bottom of the support column is provided with a universal wheel, and further comprising:

[0007] A guardrail device is provided on the top of the trolley flatbed to increase its load-bearing capacity;

[0008] One end of the guardrail device is provided with a switch device for quickly folding the guardrail device.

[0009] Preferably, four support columns are provided, and one end of the four support columns is rectangular and fixedly connected to the bottom of the trolley flat plate, and the bottoms of the four support columns are respectively fixedly connected to a universal wheel, and two guardrail devices are provided on the top of the trolley flat plate.

[0010] Preferably, the two guardrail devices each include a connecting block, a connecting rod and a linkage rod, the top of the trolley flatbed is movably connected to the connecting rod, the top of the connecting rod is movably connected to the connecting block, and the top of the connecting block is fixedly connected to the linkage rod.

[0011] Preferably, three connecting blocks are provided, and movable grooves are provided at the bottom of the three connecting blocks. The tops of the three connecting blocks are evenly fixedly connected to the bottom of the linkage rod, and a connecting rod is movably connected inside the movable grooves at the bottom of the three connecting blocks.

[0012] Preferably, a first limiting round rod is fixedly connected to the trolley flat plate between the two linkage rods, and a baffle is movably connected to the outer surface of the first limiting round rod corresponding to the two linkage rods, and a second limiting round rod of a through-piece is movably connected to the bottom of the baffle, and two fixed blocks are fixedly connected to both ends of the second limiting round rod, the bottom ends of the two fixed blocks are fixedly connected to the trolley flat plate, and two switch devices are arranged at the bottom of the two linkage rods.

[0013] Preferably, the two switch devices each include a limit plate, a first sleeve, a second sleeve, a folding handle, a fixing rod, a spring and a fixing plate, the bottom of the linkage rod is fixedly connected to the two limit plates, the bottom of the two limit plates is fixedly connected to the first sleeve, the top of the first sleeve is movably connected to the through-piece folding handle, the bottom end of the folding handle is fixedly connected to the fixing rod, and a spring is fixedly connected between the top of the folding handle and the linkage rod, the bottom end of the fixing rod is movably connected to the fixing plate, and one end of the fixing plate is fixedly connected to the second sleeve.

[0014] Preferably, the folding handle is L-shaped, and the vertical end of the folding handle is movably connected between the two limit plates, and the lateral end of the folding handle is movably connected to the inside of the first sleeve.

[0015] Preferably, one end of the fixing plate is in an inclined shape, and a penetrating circular groove is provided on the top of the fixing plate, and the bottom of the fixing rod is movably connected to the inside of the circular groove of the fixing plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a foldable flat-bed logistics trolley, which has the following beneficial effects:

[0018] 1. The foldable flatbed logistics trolley is lifted upward by the linkage rod, so that the linkage rod drives one end of the three connection rods to perform circular motion around the connection points between the three connection rods and the top of the trolley flatbed through the three connection blocks fixedly connected at the bottom thereof, so that the three connection rods are perpendicular to the trolley flatbed to form a fence, and then in the process of the linkage rod rising, the three connection rods limit the linkage rod, so that while the linkage rod is upward, one end of the linkage rod is pushed forward, so that one end of the linkage rod drives the bottom of the baffle plate to rotate on the second limit round rod through the first limit round rod, so that the second limit round rod can be perpendicular to the trolley flatbed, so that the baffle plate and the connection rods on the trolley flatbed form a guardrail, thereby improving the carrying capacity of the trolley flatbed and preventing objects from falling.

[0019] 2. The foldable flatbed logistics trolley uses the inclined end of the fixing plate and the elasticity of the spring to enable the fixing rod to be snapped into the circular groove of the fixing plate, so that the two guardrail devices on the flatbed of the trolley are in a fixed state. When the guardrail device needs to be folded, first, the vertical end of the folding handle is moved upward inside the first sleeve through the horizontal end, so that the top of the folding handle squeezes the spring while the bottom of the folding handle drives the fixing rod to leave the circular groove of the fixing plate, and then the linkage rod is pulled backward, so that the linkage rod is restricted by the connecting rod, and the guardrail device is folded on the flatbed of the trolley, thereby reducing the space occupied by the flatbed of the trolley, so that the flatbed of the trolley can be easily stored in a narrow place. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a side view of the logistics trolley of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the switch device of the utility model;

[0023] Figure 4 It is a cross-sectional schematic diagram of the switch device of the utility model.

[0024] In the figure: 1. trolley flat plate; 2. trolley handle; 3. support column; 4. universal wheel; 5. connecting block; 6. connecting rod; 7. linkage rod; 8. limit plate; 9. first sleeve; 10. second sleeve; 11. folding handle; 12. fixing rod; 13. spring; 14. fixing plate; 15. fixing block; 16. first limit round rod; 17. second limit round rod; 18. baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 A foldable flatbed logistics trolley includes a trolley flatbed 1, a trolley handle 2, a support column 3 and a universal wheel 4. The top of the trolley flatbed 1 is provided with a trolley handle 2, and the bottom of the trolley flatbed 1 is provided with a support column 3, and the bottom of the support column 3 is provided with a universal wheel 4, and further includes:

[0027] A guardrail device is provided on the top of the trolley flatbed 1 to improve its bearing capacity;

[0028] One end of the guardrail device is provided with a switch device for quickly folding the guardrail device.

[0029] Furthermore, four support columns 3 are provided, and one end of the four support columns 3 is rectangular and fixedly connected to the bottom of the trolley flatbed 1, and the bottoms of the four support columns 3 are respectively fixedly connected to a universal wheel 4, and two guardrail devices are provided on the top of the trolley flatbed 1.

[0030] Furthermore, the two guardrail devices each include a connecting block 5, a connecting rod 6 and a linkage rod 7. The top of the trolley flatbed 1 is movably connected to the connecting rod 6, the top of the connecting rod 6 is movably connected to the connecting block 5, and the top of the connecting block 5 is fixedly connected to the linkage rod 7.

[0031] Furthermore, three connecting blocks 5 are provided, and movable grooves are opened at the bottom of the three connecting blocks 5. The tops of the three connecting blocks 5 are evenly fixedly connected to the bottom of the linkage rod 7, and a connecting rod 6 is movably connected inside the movable grooves at the bottom of the three connecting blocks 5.

[0032] Furthermore, a first limiting round rod 16 is fixedly connected to the trolley flat plate 1 between the two linkage rods 7, and a baffle 18 is movably connected to the outer surface of the first limiting round rod 16 corresponding to the two linkage rods 7, and a through-piece second limiting round rod 17 is movably connected to the bottom of the baffle 18, and two fixed blocks 15 are fixedly connected to both ends of the second limiting round rod 17, the bottom ends of the two fixed blocks 15 are fixedly connected to the trolley flat plate 1, and two switch devices are arranged at the bottom of the two linkage rods 7.

[0033] Furthermore, the two switch devices each include a limit plate 8, a first sleeve 9, a second sleeve 10, a folding handle 11, a fixing rod 12, a spring 13 and a fixing plate 14. The bottom of the linkage rod 7 is fixedly connected to the two limit plates 8, the bottom of the two limit plates 8 is fixedly connected to the first sleeve 9, the top of the first sleeve 9 is movably connected to the through-piece folding handle 11, the bottom end of the folding handle 11 is fixedly connected to the fixing rod 12, and a spring 13 is fixedly connected between the top of the folding handle 11 and the linkage rod 7, the bottom end of the fixing rod 12 is movably connected to the fixing plate 14, and one end of the fixing plate 14 is fixedly connected to the second sleeve 10.

[0034] Furthermore, the folding handle 11 is L-shaped, and the vertical end of the folding handle 11 is movably connected between the two limit plates 8 , and the lateral end of the folding handle 11 is movably connected to the inside of the first sleeve 9 .

[0035] Furthermore, one end of the fixing plate 14 is in an inclined shape, and a penetrating circular groove is formed at the top of the fixing plate 14 , and the bottom of the fixing rod 12 is movably connected to the inside of the circular groove of the fixing plate 14 .

[0036] Working principle: when the trolley platform 1 is needed to move an object, first lift the linkage rod 7 upward, so that the linkage rod 7 drives one end of the three connection rods 6 to perform circular motion around the connection points between the three connection rods 6 and the top of the trolley platform 1 through the three connection blocks 5 fixedly connected at the bottom, so that the three connection rods 6 form a fence vertically with the trolley platform 1, and then in the process of the linkage rod 7 rising, the three connection rods 6 limit the linkage rod 7, so that while the linkage rod 7 is upward, one end of the linkage rod 7 is pushed forward, so that one end of the linkage rod 7 drives the bottom of the baffle 18 to rotate on the second limit rod 17 through the first limit rod 16, so that the second limit rod 17 can be perpendicular to the trolley platform 1, so that the baffle 18 and the connection rods 6 on the trolley platform 1 form a guardrail, thereby improving the bearing capacity of the trolley platform 1 The linkage rod 7 is then pulled backwards, so that the linkage rod 7 is restricted by the connecting rod 6, and the guardrail device is folded on the trolley flat plate 1, thereby reducing the space occupied by the trolley flat plate 1, and making the trolley flat plate 11 easy to store in a narrow place.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable flatbed logistics trolley, comprising a trolley flatbed (1), a trolley handle (2), a support column (3) and a universal wheel (4), wherein the top of the trolley flatbed (1) is provided with a trolley handle (2), the bottom of the trolley flatbed (1) is provided with a support column (3), and the bottom of the support column (3) is provided with a universal wheel (4), characterized in that: Also includes: A guardrail device for increasing the load-bearing capacity of the trolley flatbed (1) is arranged on the top of the trolley flatbed (1); One end of the guardrail device is provided with a switch device for quickly folding the guardrail device.

2. A foldable flatbed logistics trolley according to claim 1, characterized in that: Four support columns (3) are provided, and one end of the four support columns (3) is rectangular and fixedly connected to the bottom of the trolley flat plate (1), and the bottom of the four support columns (3) is respectively fixedly connected to a universal wheel (4), and two guardrail devices are provided on the top of the trolley flat plate (1).

3. A foldable flatbed logistics trolley according to claim 2, characterized in that: The two guardrail devices both comprise a connecting block (5), a connecting rod (6) and a linkage rod (7); the top of the trolley flatbed (1) is movably connected to the connecting rod (6); the top of the connecting rod (6) is movably connected to the connecting block (5); and the top of the connecting block (5) is fixedly connected to the linkage rod (7).

4. The foldable flatbed logistics trolley according to claim 3, characterized in that: Three connecting blocks (5) are provided, and movable grooves are provided at the bottoms of the three connecting blocks (5). The tops of the three connecting blocks (5) are evenly fixedly connected to the bottom of the linkage rod (7), and a connecting rod (6) is movably connected inside the movable grooves at the bottoms of the three connecting blocks (5).

5. The foldable flatbed logistics trolley according to claim 3, characterized in that: A first limiting round rod (16) is fixedly connected to the trolley flat plate (1) between the two linkage rods (7), and a baffle (18) is movably connected to the outer surface of the first limiting round rod (16) corresponding to the two linkage rods (7), and a through-piece second limiting round rod (17) is movably connected to the bottom of the baffle (18), and two fixing blocks (15) are fixedly connected to the two ends of the second limiting round rod (17), the bottom ends of the two fixing blocks (15) are fixedly connected to the trolley flat plate (1), and two switch devices are arranged at the bottom of the two linkage rods (7).

6. The foldable flatbed logistics trolley according to claim 3, characterized in that: The two switch devices both comprise a limit plate (8), a first sleeve (9), a second sleeve (10), a folding handle (11), a fixing rod (12), a spring (13) and a fixing plate (14); the bottom of the linkage rod (7) is fixedly connected to the two limit plates (8); the bottoms of the two limit plates (8) are fixedly connected to the first sleeve (9); the top of the first sleeve (9) is movably connected to a through-piece folding handle (11); the bottom end of the folding handle (11) is fixedly connected to the fixing rod (12); a spring (13) is fixedly connected between the top end of the folding handle (11) and the linkage rod (7); the bottom end of the fixing rod (12) is movably connected to the fixing plate (14); one end of the fixing plate (14) is fixedly connected to the second sleeve (10).

7. The foldable flatbed logistics vehicle according to claim 6, characterized in that: The folding handle (11) is L-shaped, and the vertical end of the folding handle (11) is movably connected between the two limit plates (8), and the lateral end of the folding handle (11) is movably connected inside the first sleeve (9).

8. The foldable flatbed logistics vehicle according to claim 6, characterized in that: One end of the fixing plate (14) is in the shape of an inclined plane, and a penetrating circular groove is provided at the top of the fixing plate (14), and the bottom of the fixing rod (12) is movably connected inside the circular groove of the fixing plate (14).

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