Flat trolley capable of being expanded

Abstract

A flat trolley capable of being expanded comprises a first trolley cargo carrying plate, a second trolley cargo carrying plate, a first baffle and a second baffle, the second trolley cargo carrying plate is connected to the inner side of the first trolley cargo carrying plate, a plurality of universal wheels are connected to the bottom of the first trolley cargo carrying plate, and two universal wheels are connected to the bottom of the second trolley cargo carrying plate; a first sliding groove is formed in the upper portion of the first cart cargo carrying plate, a plurality of first positioning protrusions are arranged in the first sliding groove, the first positioning protrusions are evenly distributed on the inner side of the first sliding groove, and the capacity expansion mode of transverse capacity expansion and vertical height increasing can be achieved; the trolley can contain more cargoes or cargoes stacked higher, the trolley is more convenient to use, two capacity expansion modes are adopted, and the trolley is wide in application range, easy to operate and convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the field of carts, in particular to an expandable flat-bed cart. Background Art

[0002] The existing patent (publication number: CN 213799775 U) proposes a small cart with an expansion structure, including a bottom plate, a side plate, a support plate, a fixed plate and a hook, wherein a universal wheel is fixedly connected to the right side of the bottom of the bottom plate, a rotating wheel is fixedly connected to the left side of the bottom plate, and hinges are fixedly connected to the outer side of the bottom plate in an evenly distributed manner. A support plate is provided on the left side of the top of the bottom plate, a fixed plate is provided on the right side of the support plate, a side plate is provided on one side of the fixed plate, and a fixed plate is fixedly connected to one side of the side plate, a bolt is provided in the fixed plate, a limit plate is provided on the outer side of the bolt, a support rod is fixedly connected to the right side of the top of the bottom plate, and a slider is provided on the outer side of the support rod; however, the above device can only be expanded horizontally, but cannot be increased vertically, the expansion method is relatively single, the expansion method is limited, and there are disadvantages. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides an expandable flatbed trolley which can accommodate more goods or stack higher goods, making the trolley more convenient to use, has two expansion modes, a wide range of applications, is simple to operate, and is easy to adjust.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A flatbed trolley with expandable capacity comprises a No. 1 trolley loading board, a No. 2 trolley loading board, a No. 1 baffle plate and a No. 2 baffle plate. The inner side of the No. 1 trolley loading board is connected to the No. 2 trolley loading board. The bottom of the No. 1 trolley loading board is connected to a plurality of universal wheels. The bottom of the No. 2 trolley loading board is connected to two universal wheels. The outer connecting ears of the universal wheels are connected to the pull rods through rotating shafts. The No. 1 trolley loading board has a No. 1 slide groove on the upper part, and the No. 1 slide groove has a plurality of No. 1 positioning protrusions inside. The No. 1 positioning protrusions are evenly distributed on the inner side of the No. 1 slide groove. The No. 1 slide groove has a plurality of fixed connection holes on both sides. The No. 2 trolley loading board has two rows of positioning sockets on the upper part, and the positioning sockets are symmetrical. The No. 2 trolley cargo plate is provided with an No. 1 auxiliary connecting plate at the bottom, a plurality of No. 2 slide grooves are provided on the inner side of the No. 1 auxiliary connecting plate, the No. 2 slide grooves are evenly distributed on the inner side of the No. 1 auxiliary connecting plate, a plurality of positioning connecting holes are provided on the outer side of the No. 1 auxiliary connecting plate, the No. 1 auxiliary connecting plate cooperates with the No. 1 slide groove, the outer side of the No. 1 auxiliary connecting plate is connected to the No. 1 slide groove, the No. 1 auxiliary connecting plate slides in the No. 1 slide groove, the fixed connecting hole corresponds to the positioning connecting hole, the screw passes through the fixed connecting hole to connect the positioning connecting hole, the No. 2 slide groove cooperates with the No. 1 positioning protrusion, the outer side of the No. 2 slide groove is connected to the No. 1 positioning protrusion, and the No. 1 positioning protrusion slides in the No. 2 slide groove.

[0006] The utility model describes that the upper portion of the No. 1 cart cargo board is provided with two No. 1 columns, which are symmetrically arranged; the upper portion of the No. 2 cart cargo board is provided with two No. 2 columns, which are symmetrically arranged; the outer side of the No. 1 column is connected to the No. 4 baffle plate, both ends of the No. 4 baffle plate are provided with No. 4 connecting sleeves, the inner side of the No. 4 connecting sleeve is connected to the No. 1 column; the outer side of the No. 2 column is connected to the No. 3 baffle plate, both ends of the No. 3 baffle plate are provided with No. 3 connecting sleeves, and the inner side of the No. 3 connecting sleeve is connected to the No. 2 column.

[0007] The utility model describes that the outer side of the No. 1 column is connected to the No. 1 baffle, the outer side of the No. 2 column is connected to the No. 2 baffle, the outer side of the No. 1 baffle is connected to the No. 2 baffle, the No. 2 baffle slides on the No. 1 baffle, the upper part of the No. 1 baffle is connected to the No. 2 baffle, one end of the No. 1 baffle is provided with two No. 1 connecting sleeves, the No. 1 connecting sleeves are symmetrically arranged, the inner side of the No. 1 connecting sleeve is connected to the No. 1 column, the No. 1 connecting sleeve slides on the No. 1 column, the bottom of the No. 1 connecting sleeve is connected to the No. 4 connecting sleeve, the lower part of the No. 1 baffle is provided with an adjusting rod, the adjusting rod is adapted to the positioning socket, the outer side of the adjusting rod is connected to the positioning socket, and the adjusting rod slides in the positioning socket. Beneficial Effects

[0008] When the utility model needs to expand horizontally, the first cart loading plate is pulled to expand horizontally, and after the horizontal length of the cart is adjusted, the horizontal expansion is completed, so that the cart can accommodate more goods, making the cart more convenient to use.

[0009] When the utility model needs to be increased vertically, the first trolley cargo board and the second trolley cargo board are completely closed, and then the second baffle plate is moved upward and moved to the top of the first baffle plate, so that the vertical increase of the trolley is completed. The expansion method enables the trolley to stack higher goods and makes the trolley more convenient to use. When the vertical height is increased, the second baffle plate and the protective net cooperate with each other to protect the higher stacked goods and prevent the goods from falling and being lost during transportation.

[0010] The utility model has two expansion modes, wide application range, simple operation and convenient adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the lateral expansion structure of an expandable flatbed trolley.

[0012] Figure 2 The utility model is a schematic diagram of the vertical heightening structure of an expandable flatbed trolley.

[0013] Figure 3 The utility model is a schematic diagram of the combined structure of a No. 1 trolley cargo board and a No. 2 trolley cargo board of an expandable flatbed trolley described in the present invention.

[0014] Figure 4The utility model is a schematic diagram of the structure of a No. 1 cargo plate of an expandable flatbed trolley described in the present invention.

[0015] Figure 5 A bottom view of the second trolley cargo plate structure of an expandable flatbed trolley described in the utility model.

[0016] Figure 6 The utility model is a schematic diagram of a first baffle plate and a second combined structure of an expandable flatbed trolley.

[0017] Figure 7 The utility model is a schematic diagram of the structure of the first baffle plate of the expandable flatbed trolley.

[0018] Figure 8 This is a rear view of the second baffle structure of the expandable flatbed trolley described in the utility model.

[0019] Fig. 9 The utility model is a schematic diagram of the third baffle structure of an expandable flatbed trolley.

[0020] Fig.10 The utility model is a schematic diagram of the fourth baffle structure of an expandable flatbed trolley. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0022] Embodiment 1:

[0023] A flatbed trolley with expandable capacity comprises a No. 1 trolley loading board 01, a No. 2 trolley loading board 02, a No. 1 baffle plate 03, and a No. 2 baffle plate 04. The inner side of the No. 1 trolley loading board 01 is connected to the No. 2 trolley loading board 02. The bottom of the No. 1 trolley loading board 01 is connected to a plurality of universal wheels 10. The bottom of the No. 2 trolley loading board 02 is connected to two universal wheels 10. The outer connecting ears of the universal wheels 10 are connected to the pull rod 11 through a rotating shaft. The No. 1 trolley loading board 01 has a No. 1 slide groove 13 on the top, and the No. 1 slide groove 13 has a plurality of No. 1 positioning protrusions 14 inside. The No. 1 positioning protrusions 14 are evenly distributed on the inner side of the No. 1 slide groove 13. The No. 1 slide groove 13 has a plurality of fixed connection holes 28 on both sides. The No. 2 trolley loading board 02 has two rows of positioning sockets 27 on the top, and the positioning sockets 27 are symmetrically arranged. The No. 2 trolley loading board 02 has a No. 1 auxiliary connecting plate 15 on the bottom. The inner side of the plate 15 is provided with a plurality of No. 2 slide grooves 16, and the No. 2 slide grooves 16 are evenly distributed on the inner side of the No. 1 auxiliary connecting plate 15, and the outer side of the No. 1 auxiliary connecting plate 15 is provided with a plurality of positioning connection holes 29, the No. 1 auxiliary connecting plate 15 cooperates with the No. 1 slide groove 13, and the outer side of the No. 1 auxiliary connecting plate 15 is connected to the No. 1 slide groove 13, and the No. 1 auxiliary connecting plate 15 slides in the No. 1 slide groove 13, and the fixed connection hole 28 corresponds to the positioning connection hole 29, and the screw passes through the fixed connection hole 28 to connect the positioning connection hole 29, the No. 2 slide groove 16 cooperates with the No. 1 positioning protrusion 14, and the outer side of the No. 2 slide groove 16 is connected to the No. 1 positioning protrusion 14, and the No. 1 positioning protrusion 14 slides in the No. 2 slide groove 16. When horizontal expansion is needed, the No. 1 cart cargo plate 01 is pulled horizontally to expand horizontally. After adjusting the horizontal length of the cart, the horizontal expansion is completed, and the cart can accommodate more goods.

[0024] Embodiment 2:

[0025] The utility model has two No. 1 columns 05 on the upper part of the No. 1 cart loading board 01, and the No. 1 columns 05 are symmetrically arranged. The utility model has two No. 2 columns 06 on the upper part of the No. 2 cart loading board 02, and the No. 2 columns 06 are symmetrically arranged. The outer side of the No. 1 column 05 is connected to the No. 4 baffle plate 12, and the two ends of the No. 4 baffle plate 12 have No. 4 connecting sleeves 25, and the inner side of the No. 4 connecting sleeve 25 is connected to the No. 1 column 05. The outer side of the No. 2 column 06 is connected to the No. 3 baffle plate 07, and the two ends of the No. 3 baffle plate 07 have No. 3 connecting sleeves 24, and the inner side of the No. 3 connecting sleeve 24 is connected to the No. 2 column 06.

[0026] Embodiment 3:

[0027] The utility model has a No. 1 baffle plate 03 connected to the outer side of the No. 1 column 05, a No. 2 baffle plate 04 connected to the outer side of the No. 2 column 06, a No. 1 baffle plate 03 connected to the outer side of the No. 2 baffle plate 04, a No. 2 baffle plate 04 slides on the No. 1 baffle plate 03, a No. 1 baffle plate 03 is connected to the No. 2 baffle plate 04 on the upper part, a No. 1 baffle plate 03 has two No. 1 connecting sleeves 19 at one end, the No. 1 connecting sleeves 19 are symmetrically arranged, the No. 1 connecting sleeve 19 is connected to the No. 1 column 05 on the inner side, the No. 1 connecting sleeve 19 slides on the No. 1 column 05, the No. 1 connecting sleeve 19 is connected to the No. 4 connecting sleeve 25 at the bottom, and the No. 1 baffle plate 03 has an adjusting rod 26 at the lower part, the adjusting rod 26 is adapted to the positioning socket 27, the adjusting rod 26 is connected to the positioning socket 27 on the outer side, and the adjusting rod 26 is connected to the positioning socket 27 on the outer side. It slides in the positioning socket 27 and positions and fixes the No. 1 baffle plate 03 by adjusting the plug rod 26, which effectively prevents the No. 1 baffle plate 03 from shaking. The No. 1 baffle plate 03 blocks the No. 2 baffle plate 04 together, making the overall structure more stable. When vertical height increase is required, the No. 1 trolley cargo board 01 and the No. 2 trolley cargo board 02 are completely closed, and then the No. 2 baffle plate 04 is moved upward and moved to the top of the No. 1 baffle plate 03 to complete the vertical height expansion mode of the trolley, so that the trolley can stack higher goods and make the trolley more convenient to use. When the vertical height increase is performed, the No. 2 baffle plate 04 and the protective net 08 cooperate with each other to protect the higher stacked goods and prevent the goods from falling and being lost during transportation.

[0028] Embodiment 4:

[0029] The utility model has two No. 2 connecting sleeves 20 at one end of the No. 2 baffle 04, and the No. 2 connecting sleeves 20 are symmetrically arranged. The inner side of the No. 2 connecting sleeve 20 is connected to the No. 2 column 06, and the No. 2 connecting sleeve 20 slides on the No. 2 column 06. The bottom of the No. 2 connecting sleeve 20 is connected to the No. 3 connecting sleeve 24, and the outer side of the No. 2 connecting sleeve 20 is provided with a hook 09, and the outer side of the hook 09 is connected to the protective net 08. The upper part of the No. 1 baffle 03 has a positioning connecting groove 31, and the outer side has a No. 3 slide groove 17, and the inner side of the No. 3 slide groove 17 has a No. 4 slide groove 18. The outer side of the No. 2 baffle 04 has a No. 2 auxiliary connecting plate 22, and the interior of the No. 2 auxiliary connecting plate 22 has two No. 2 positioning protrusions 23, and the No. 2 positioning protrusions 23 are symmetrically arranged. The lower part of the No. 2 auxiliary connecting plate 22 is provided with a positioning connecting plate 30, the No. 3 slide groove 17 is adapted to the No. 2 auxiliary connecting plate 22, the inner side of the No. 3 slide groove 17 is connected to the No. 2 auxiliary connecting plate 22, the No. 2 auxiliary connecting plate 22 slides in the No. 3 slide groove 17, the No. 4 slide groove 18 is adapted to the No. 2 positioning protrusion 23, the outer side of the No. 2 positioning protrusion 23 is connected to the No. 4 slide groove 18, the No. 2 positioning protrusion 23 slides in the No. 4 slide groove 18, the positioning connecting plate 30 is adapted to the positioning connecting groove 31, the outer side of the positioning connecting plate 30 is connected to the positioning connecting groove 31, and when the vertical height is increased, the No. 2 baffle 04 and the protective net 08 cooperate with each other to protect the higher stacked goods to prevent the goods from falling and being lost during transportation.

[0030] Embodiment 5:

[0031] Installation steps: When horizontal expansion is required, first unscrew the screws on the outside of the No. 1 trolley cargo board 01, lift up the No. 1 baffle plate 03 and the No. 2 baffle plate 04 at the same time, pull out the adjustment rod 26 from the positioning socket 27, and then pull the No. 1 trolley cargo board 01 horizontally to expand horizontally. After adjusting the horizontal length of the trolley, move the No. 1 baffle plate 03 and the No. 2 baffle plate 04 downward at the same time and insert the adjustment rod 26 into the positioning socket 27. Finally, fix the No. 1 trolley cargo board 01 and the No. 2 trolley cargo board 02 with screws to complete the horizontal expansion. The trolley can accommodate more goods. When vertical height increase is required, first repeat the above operation to lift the No. 1 trolley cargo board 01. The second baffle plate 04 is completely closed with the cargo plate 02 of the second trolley, and then the second baffle plate 04 is moved upward to make the second positioning protrusion 23 outside the second baffle plate 04 slide out of the fourth slide groove 18, and then the second baffle plate 04 is moved to the top of the first baffle plate 03, and the positioning connecting plate 30 is moved into the positioning connecting groove 31 and the positioning connecting plate 30 is fixed with screws to complete the vertical expansion method of the trolley, so that the trolley can stack higher goods, making the trolley more convenient to use, and when the vertical height is increased, the second baffle plate 04 and the protective net 08 cooperate with each other to protect the higher stacked goods to prevent the goods from falling and being lost during transportation; the two expansion methods have a wide range of applications, simple operation, and convenient adjustment.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An expandable flatbed trolley, characterized in that : It comprises a No. 1 cart loading board (01), a No. 2 cart loading board (02), a No. 1 baffle plate (03), and a No. 2 baffle plate (04); the No. 1 cart loading board (01) is connected to the No. 2 cart loading board (02) on the inner side; the No. 1 cart loading board (01) is connected to a plurality of universal wheels (10) on the bottom; the No. 2 cart loading board (02) is connected to two universal wheels (10) on the bottom; the outer connecting ears of the universal wheels (10) are connected to the pull rods ( 11), the No. 1 trolley cargo plate (01) has a No. 1 slide groove (13) on the top, and the No. 1 slide groove (13) has a plurality of No. 1 positioning protrusions (14) inside, and the No. 1 positioning protrusions (14) are evenly distributed inside the No. 1 slide groove (13), and the No. 1 slide groove (13) has a plurality of fixed connection holes (28) on both sides, and the No. 2 trolley cargo plate (02) has two rows of positioning sockets (27) on the top, and the positioning sockets (27) are symmetrically arranged. The lower part of the cargo board (02) is provided with a No. 1 auxiliary connecting plate (15), the inner side of the No. 1 auxiliary connecting plate (15) is provided with a plurality of No. 2 slide grooves (16), the No. 2 slide grooves (16) are evenly distributed on the inner side of the No. 1 auxiliary connecting plate (15), the outer side of the No. 1 auxiliary connecting plate (15) is provided with a plurality of positioning connection holes (29), the No. 1 auxiliary connecting plate (15) cooperates with the No. 1 slide groove (13), the outer side of the No. 1 auxiliary connecting plate (15) is connected to the No. 1 slide groove (13), the No. 1 auxiliary connecting plate (15) slides in the No. 1 slide groove (13), the fixed connection hole (28) corresponds to the positioning connection hole (29), the screw passes through the fixed connection hole (28) and connects the positioning connection hole (29), the No. 2 slide groove (16) cooperates with the No. 1 positioning protrusion (14), the outer side of the No. 2 slide groove (16) is connected to the No. 1 positioning protrusion (14), and the No. 1 positioning protrusion (14) slides in the No. 2 slide groove (16).

2. The expandable flatbed trolley according to claim 1, characterized in that The No. 1 cart cargo board (01) has two No. 1 columns (05) on the upper part, and the No. 1 columns (05) are symmetrically arranged. The No. 2 cart cargo board (02) has two No. 2 columns (06) on the upper part, and the No. 2 columns (06) are symmetrically arranged. The No. 1 column (05) is connected to the No. 4 baffle (12) on the outer side, and the No. 4 baffle (12) has No. 4 connecting sleeves (25) at both ends, and the No. 4 connecting sleeve (25) is connected to the No. 1 column (05) on the inner side. The No. 2 column (06) is connected to the No. 3 baffle (07) on the outer side, and the No. 3 baffle (07) has No. 3 connecting sleeves (24) at both ends, and the No. 3 connecting sleeve (24) is connected to the No. 2 column (06) on the inner side.

3. The expandable flatbed trolley according to claim 2, characterized in that The outer side of the No. 1 column (05) is connected to the No. 1 baffle (03), the outer side of the No. 2 column (06) is connected to the No. 2 baffle (04), the outer side of the No. 1 baffle (03) is connected to the No. 2 baffle (04), the No. 2 baffle (04) slides on the No. 1 baffle (03), the upper part of the No. 1 baffle (03) is connected to the No. 2 baffle (04), one end of the No. 1 baffle (03) has two No. 1 connecting sleeves (19), the No. 1 connecting sleeves (19) are symmetrically arranged, and the No. 1 baffle (03) is connected to the No. 2 baffle (04). The inner side of the connecting sleeve (19) is connected to the No. 1 column (05), the No. 1 connecting sleeve (19) slides on the No. 1 column (05), the bottom of the No. 1 connecting sleeve (19) is connected to the No. 4 connecting sleeve (25), the lower part of the No. 1 baffle (03) is provided with an adjusting rod (26), the adjusting rod (26) is adapted to the positioning socket (27), the outer side of the adjusting rod (26) is connected to the positioning socket (27), and the adjusting rod (26) slides in the positioning socket (27).

4. The expandable flatbed trolley according to claim 3, characterized in that The second baffle plate (04) has two second connecting sleeves (20) at one end, the second connecting sleeves (20) are symmetrically arranged, the inner side of the second connecting sleeve (20) is connected to the second column (06), the second connecting sleeve (20) slides on the second column (06), the bottom of the second connecting sleeve (20) is connected to the third connecting sleeve (24), the outer side of the second connecting sleeve (20) has a hook (09), the outer side of the hook (09) is connected to the protective net (08), the upper part of the first baffle plate (03) has a positioning connection groove (31), and the outer side has a third slide groove (17).

5. The expandable flatbed trolley according to claim 4, characterized in that The inner side of the No. 3 slide groove (17) is provided with a No. 4 slide groove (18), the outer side of the No. 2 baffle plate (04) is provided with a No. 2 auxiliary connecting plate (22), the inner side of the No. 2 auxiliary connecting plate (22) is provided with two No. 2 positioning protrusions (23), the No. 2 positioning protrusions (23) are symmetrically arranged, the lower part of the No. 2 auxiliary connecting plate (22) is provided with a positioning connecting plate (30), the No. 3 slide groove (17) is adapted to the No. 2 auxiliary connecting plate (22), the inner side of the No. 3 slide groove (17) is connected to the No. 2 auxiliary connecting plate (22), and the No. 3 slide groove (17) is connected to the No. 4 slide groove (18). A second auxiliary connecting plate (22), the second auxiliary connecting plate (22) slides in the third slide groove (17), the fourth slide groove (18) is adapted to the second positioning protrusion (23), the outer side of the second positioning protrusion (23) is connected to the fourth slide groove (18), the second positioning protrusion (23) slides in the fourth slide groove (18), the positioning connecting plate (30) is adapted to the positioning connecting groove (31), and the outer side of the positioning connecting plate (30) is connected to the positioning connecting groove (31).

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