Logistics trolley capable of expanding space

Abstract

The utility model discloses a logistics trolley capable of expanding space, which relates to the technical field of logistics trolleys and comprises a base and rollers, a handle is mounted at the top of the base, the rollers are mounted at the bottom of the base, a first guide block and a second guide block are mounted at the bottom of the base, and the first guide block and the second guide block are arranged on the base. A first movable rod and a second movable rod are connected to the middle of the first guide block and the middle of the second guide block in a penetrating mode. When the logistics trolley capable of expanding the space is used, a screw rod can be rotated, a first rotating block and a convex block are matched, so that a cam does not extrude a movable groove in the bottom of a movable rod, then a connecting baffle can be pulled, and at the moment, the placing space on the top of the base can be expanded by adjusting the position of the movable rod; and then the screw rod is reversely rotated, so that the cam extrudes the movable groove in the bottom of the movable rod, the stability of the movable rod can be improved, the placing space of the goods can be adjusted by adjusting the movable rod, and more goods can be conveniently transported.

Description

Technical Field

[0001] This utility model relates to the field of logistics handcart technology, specifically to a logistics handcart with expandable space. Background Technology

[0002] Logistics trolleys are widely used tools in warehousing, distribution centers, or retail environments for moving goods and materials. They can significantly improve logistics efficiency, reduce manual labor intensity, and lower operational risks.

[0003] In order to increase the stability of the base, the existing logistics handcarts are usually made of one piece. Therefore, the size of the entire base is usually fixed. This means that the placement space of the base cannot be expanded according to the needs, and thus it can only transport goods of fixed size and fixed quantity. Utility Model Content

[0004] The purpose of this utility model is to provide a logistics trolley with expandable space to solve the problem mentioned in the background art that the currently used logistics trolleys do not have the function of expanding the placement space.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an expandable logistics trolley, comprising: a base and rollers, wherein a handle is installed on the top of the base and the rollers are installed on the bottom of the base;

[0006] The base has a guide block 1 and a guide block 2 installed at its bottom. A movable rod 1 and a movable rod 2 are connected through the middle of both guide blocks 1 and 2. A connecting baffle is connected to one side of each movable rod 1 and movable rod 2. A through groove is formed at the bottom of guide block 2, and a movable slot is formed at the bottom of the movable rod 2 passing through the middle of guide block 2. A cam is provided at the bottom of the movable slot. A first rotating shaft is connected through the middle of the cam. Both ends of the first rotating shaft are connected to connecting blocks via bearings. The connecting blocks are installed at the bottom of the base. A protrusion is installed on one side of the cam. A first rotating block is connected to one side of the protrusion via a rotating shaft. A movable block is connected to the other end of the first rotating block via a rotating shaft. A screw is connected to the end of the movable block away from the first rotating block via a bearing. A support block is sleeved on the outside of the screw.

[0007] Preferably, the screw and the support block are connected by a thread, and the screw is installed at the bottom of the base through the support block.

[0008] Preferably, the first movable rod and the second movable rod are mounted on the bottom of the base via the first guide block and the second guide block.

[0009] Preferably, a mounting block is installed on the top of the base, and a second rotating shaft is connected through the middle of the two sets of mounting blocks. A guardrail and a toothed ring are respectively connected to the outer side of the second rotating shaft.

[0010] Preferably, a second rotating block is provided on the top of the gear ring, and the middle of the second rotating block is connected to one side of a set of mounting blocks via a rotating shaft.

[0011] Preferably, a telescopic rod is provided on one side of the second rotating block, and a fixing block is sleeved on the outer side of the telescopic rod.

[0012] Preferably, a return spring is provided between the outer side of the telescopic rod and the fixed block, and the end of the telescopic rod near the second rotating block has a spherical structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This expandable logistics trolley can rotate a screw so that the cam does not press against the movable groove at the bottom of the movable rod, and then the movable rod can be pulled. By adjusting the position of the movable rod and the connecting baffle, the placement space of the base can be extended, so that some goods can be placed on the movable rod to meet the different needs of users.

[0015] 2. This expandable logistics trolley can push the second rotating block away from the toothed ring as needed. At this time, the guardrail can be rotated through the second rotating shaft. When the guardrail is perpendicular to the base, it can protect the goods on the top of the base, thereby preventing the goods from falling during transportation. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a two-dimensional structural diagram of the present invention from a second perspective;

[0018] Figure 3 This is a three-dimensional structural diagram of the movable rod of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the first rotating shaft of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the cam of this utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the guardrail of this utility model;

[0022] Figure 7This is a three-dimensional structural diagram of the second rotating block of this utility model.

[0023] In the diagram: 1. Base; 2. Handle; 3. Roller; 4. Guide block one; 5. Movable rod one; 6. Connecting baffle; 7. Cam; 8. First rotating shaft; 9. Connecting block; 10. Protrusion; 11. First rotating block; 12. Movable block; 13. Screw; 14. Mounting block; 15. Second rotating shaft; 16. Guardrail; 17. Gear ring; 18. Second rotating block; 19. Telescopic rod; 20. Fixing block; 21. Return spring; 22. Movable groove; 23. Guide block two; 24. Movable rod two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 and Figure 2 This utility model provides a technical solution: an expandable logistics trolley, including: a base 1 and rollers 3, a handle 2 is installed on the top of the base 1, and rollers 3 are installed on the bottom of the base 1;

[0026] exist Figure 1 and Figure 3 In the middle, guide block 1 4 and guide block 2 23 are installed at the bottom of the base 1. Movable rod 1 5 and movable rod 2 24 are connected through the middle of guide block 1 4 and guide block 2 23. A connecting baffle 6 is connected to one side of movable rod 1 5 and movable rod 2 24.

[0027] This expandable logistics trolley, through guide block 1 4 and guide block 2 23, can guide movable rod 1 5 and movable rod 2 24, allowing movable rod 1 5 and movable rod 2 24 to move telescopically along the bottom of the base 1. At the same time, the connecting baffle 6 connected to one end of multiple sets of movable rod 1 5 and movable rod 2 24 can make multiple sets of movable rod 1 5 and movable rod 2 24 move synchronously.

[0028] exist Figure 3 and Figure 4 In the middle, the bottom of the guide block 23 is provided with a through groove, the bottom of the movable rod 24 passing through the middle of the guide block 23 is provided with a movable groove 22, the bottom of the movable groove 22 is provided with a cam 7, the middle of the cam 7 is connected to a first rotating shaft 8, both ends of the first rotating shaft 8 are connected to a connecting block 9 through bearings, and the connecting block 9 is installed at the bottom of the base 1.

[0029] This expandable logistics trolley, through the connecting block 9 and the first rotating shaft 8, makes the cam 7 more stable when rotating. At the same time, the cam 7 passes through the through groove at the bottom of the guide block 23 and connects with the movable groove 22 at the bottom of the movable rod 24. By rotating the cam 7, the movable rod 24 can be squeezed by the movable groove 22 at the bottom of the movable rod 24. Due to the squeezing of the cam 7, the movable rod 24 cannot extend or retract along the guide block 1 4 and the guide block 2 23. Conversely, if the cam 7 does not squeeze the movable groove 22 at the bottom of the movable rod 24, the movable rod 1 5 and the movable rod 24 can extend or retract normally along the guide block 1 4 and the guide block 2 23.

[0030] exist Figure 5 In the middle, a protrusion 10 is installed on one side of the cam 7, and a first rotating block 11 is connected to one side of the protrusion 10 through a rotating shaft. The other end of the first rotating block 11 is connected to a movable block 12 through a rotating shaft. The end of the movable block 12 away from the first rotating block 11 is connected to a screw 13 through a bearing. A support block is sleeved on the outside of the screw 13. The screw 13 and the support block are connected by a thread. The screw 13 is installed at the bottom of the base 1 through the support block. Movable rod 1 5 and movable rod 24 are installed at the bottom of the base 1 through guide block 1 4 and guide block 23.

[0031] This expandable logistics trolley has a threaded connection between the screw 13 and the support block, and the other end of the screw 13 is connected to the movable block 12 through a bearing. Therefore, rotating the screw 13 will drive the movable block 12 to move, and the movable block 12 will drive the cam 7 to rotate through the first rotating block 11 and the protrusion 10. When the cam 7 rotates, it will squeeze the movable groove 22 at the bottom of the movable rod 24. The movable groove 22 at the bottom of the movable rod 24 will be squeezed by the cam 7 and will not be able to retract along the guide block 4 and the guide block 23.

[0032] exist Figure 6 and Figure 7 In the middle, a mounting block 14 is installed on the top of the base 1, and a second rotating shaft 15 is connected through the middle of the two sets of mounting blocks 14. A guardrail 16 and a toothed ring 17 are respectively connected to the outside of the second rotating shaft 15.

[0033] This expandable logistics trolley allows the guardrail 16 and toothed ring 17 to rotate along the mounting block 14 via the second rotating shaft 15, thus facilitating the folding and storage or unfolding of the guardrail 16 for use.

[0034] exist Figure 7 In the middle, a second rotating block 18 is provided on the top of the gear ring 17. The middle of the second rotating block 18 is connected to one side of a set of mounting blocks 14 through a rotating shaft. A telescopic rod 19 is provided on one side of the second rotating block 18. A fixing block 20 is sleeved on the outside of the telescopic rod 19.

[0035] The expandable logistics trolley rotates towards the side closer to the toothed ring 17 via the second rotating block 18. At this time, the second rotating block 18 will limit the toothed ring 17, and the toothed ring 17 cannot rotate, which also prevents the second rotating shaft 15 and the guardrail 16 from rotating, thereby increasing the stability of the guardrail 16 during use.

[0036] exist Figure 7 In the middle, a return spring 21 is provided between the outer side of the telescopic rod 19 and the fixed block 20, and the end of the telescopic rod 19 near the second rotating block 18 is a spherical structure.

[0037] This expandable logistics trolley rotates by pulling the second rotating block 18, which then compresses the telescopic rod 19, causing it to move along the fixed block 20 and compress the return spring 21 on the outside of the telescopic rod 19. At this time, the second rotating block 18 no longer limits the toothed ring 17, allowing the second rotating shaft 15 to rotate normally. Conversely, when the return spring 21 returns to its original position, it pushes the second rotating block 18 to rotate in the opposite direction, and the second rotating block 18 limits the toothed ring 17, preventing the second rotating shaft 15 from rotating.

[0038] In summary, when using this expandable space logistics trolley, the guardrail 16 can be rotated and unfolded from the base 1 as needed. Then, the goods to be transported and transferred can be placed on the base 1. At this time, the rollers 3 at the bottom of the base 1 can be pushed by the handle 2 to move the goods to a suitable position. This is the characteristic of the use of this expandable space logistics trolley. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A logistics trolley with expandable space, comprising: The base (1) and the roller (3) are characterized in that a handle (2) is installed on the top of the base (1) and the roller (3) is installed on the bottom of the base (1); The base (1) has a guide block 1 (4) and a guide block 2 (23) installed at its bottom. A movable rod 1 (5) and a movable rod 2 (24) are connected through the middle of the guide block 1 (4) and the guide block 2 (23). A connecting baffle (6) is connected to one side of the movable rod 1 (5) and the movable rod 2 (24). A through groove is opened at the bottom of the guide block 2 (23). A movable groove (22) is opened at the bottom of the movable rod 2 (24) that passes through the middle of the guide block 2 (23). A cam (7) is provided at the bottom of the movable groove (22). The cam (7) passes through the middle of the guide block 2 (23). A first rotating shaft (8) is connected to the bottom of the base (1). Both ends of the first rotating shaft (8) are connected to connecting blocks (9) via bearings. The connecting blocks (9) are installed at the bottom of the base (1). A protrusion (10) is installed on one side of the cam (7). A first rotating block (11) is connected to one side of the protrusion (10) via a rotating shaft. A movable block (12) is connected to the other end of the first rotating block (11) via a rotating shaft. A screw (13) is connected to the end of the movable block (12) away from the first rotating block (11) via a bearing. A support block is sleeved on the outside of the screw (13).

2. The expandable logistics trolley according to claim 1, characterized in that: The screw (13) is threadedly connected to the support block, and the screw (13) is installed at the bottom of the base (1) through the support block.

3. The expandable logistics trolley according to claim 1, characterized in that: The first movable rod (5) and the second movable rod (24) are installed at the bottom of the base (1) via the first guide block (4) and the second guide block (23).

4. The expandable logistics trolley according to claim 1, characterized in that: The base (1) is equipped with a mounting block (14) on its top. A second rotating shaft (15) is connected through the middle of the two sets of mounting blocks (14). A guardrail (16) and a toothed ring (17) are respectively connected to the outside of the second rotating shaft (15).

5. A logistics trolley with expandable space according to claim 4, characterized in that: The top of the gear ring (17) is provided with a second rotating block (18), and the middle of the second rotating block (18) is connected to one side of a set of mounting blocks (14) by a rotating shaft.

6. A logistics trolley with expandable space according to claim 5, characterized in that: A telescopic rod (19) is provided on one side of the second rotating block (18), and a fixing block (20) is sleeved on the outside of the telescopic rod (19).

7. A logistics trolley with expandable space according to claim 6, characterized in that: A return spring (21) is provided between the outer side of the telescopic rod (19) and the fixed block (20), and the end of the telescopic rod (19) near the second rotating block (18) is a spherical structure.

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