A wheel retractable trolley

Abstract

The utility model discloses a handcart with retractable wheels relates to handcart technical field, including the car hopper and the support leg of connecting at the bottom of car hopper, one side fixed mounting of car hopper has first mounting rod, one side fixed mounting of first mounting rod has mounting seat, the inside rotation of mounting seat is inserted with round bar, one end movable sleeve joint of round bar has connecting piece, and the other end one side movable insertion of connecting piece has the axle, the utility model discloses through make staff hold the support rod, lift the support rod from the below of first mounting rod, when the support rod moves around mounting seat, the inside rotation of round bar in mounting seat, one end of connecting piece rotates with round bar, and the other end of connecting piece rotates with the support rod synchronization, and the support rod drives the wheel rotation through the axle, makes the wheel from the below of first mounting rod move to the above of first mounting rod, and the support rod can be overlapped on second mounting rod, and the wheel is convenient for storage car hopper fixed.

Description

Technical Field

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

[0002] Handcarts are a common type of vehicle used for manual pushing and pulling; they are the ancestor of all vehicles. Although material handling technology using handcarts has continuously developed, handcarts remain an indispensable tool for transportation. Handcarts are widely used in production and daily life because they are inexpensive, easy to maintain, convenient to operate, and lightweight. 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, in existing handcarts, the wheels are usually located under the cart's cargo box, making it difficult to adjust their position. Even after the handcart has been moved to a designated location, the wheels can still slide on the ground. When the handcart is parked at the edge of a platform to load or unload goods, the handcart body is prone to tilting due to the shift in the center of gravity because the wheels cannot be adjusted, causing the goods to fall and affecting the user's work efficiency.

[0004] To address this issue, we designed a handcart with retractable wheels. Utility Model Content

[0005] The purpose of this invention is to provide a handcart with retractable wheels to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a wheeled handcart with retractable wheels, including a cart body and support legs connected to the bottom of the cart body. A first mounting rod is fixedly installed on one side of the cart body, and a mounting seat is fixedly installed on one side of the first mounting rod. A round rod is rotatably inserted into the mounting seat. A connector is movably sleeved on one end of the round rod, and an axle is movably inserted on one side of the other end of the connector. A wheel is sleeved on the outside of the axle. A support rod is fixedly connected to the other side of the other end of the connector. A second mounting rod is fixedly connected to one side of the cart body, and the support rod overlaps with the second mounting rod.

[0007] Furthermore, a snap-fit ​​seat is fixedly connected to one side of the second mounting rod, and the support rod is movably snapped into the snap-fit ​​seat. An installation groove is provided on one side of the snap-fit ​​seat, and a rotating component is movably connected inside the installation groove. One end of the rotating component is fixedly connected to a fixing ring, and the fixing ring is sleeved on the outside of the support rod.

[0008] Furthermore, a magnet is fixedly connected to the end of the fixed ring away from the rotating part.

[0009] Furthermore, a rotating shaft is fixedly installed inside the mounting groove, and the rotating shaft is inserted into the interior of the rotating component.

[0010] Furthermore, a handle is fixedly connected to one side of the truck bed, and the outer side of the handle is provided with an integrally formed anti-slip texture.

[0011] Furthermore, a limiting plate is fixedly connected to one end of the round rod, and the limiting plate is located on one side of the mounting base.

[0012] Furthermore, there are two second mounting rods, which are symmetrically arranged on both sides of the truck bed with the vertical axis of the truck bed as the center.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by having the worker hold the support rod and lift it from below the first mounting rod, when the support rod moves around the mounting base, the round rod rotates inside the mounting base, one end of the connector rotates with the round rod, and the other end of the connector rotates synchronously with the support rod. The support rod drives the wheel to rotate through the axle, so that the wheel moves from below the first mounting rod to above the first mounting rod. The support rod can be attached to the second mounting rod, which is convenient for storing the wheel and fixing the truck bed. Compared with the prior art, the beneficial effects of this utility model are: when the support rod is attached to the second mounting rod, it can be snapped into the inside of the snap-fit ​​seat. The operator can rotate the fixing ring to rotate it from the outside of the snap-fit ​​seat to fit against the support rod. The magnet at one end of the fixing ring is magnetically connected to the snap-fit ​​seat. At this time, the snap-fit ​​seat and the fixing ring form a ring that surrounds and fixes the support rod, which facilitates the improvement of the stability of the wheel when it is folded up. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the overall side view of this utility model; Figure 3 This is a three-dimensional structural diagram of the wheel of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0015] In the diagram: 1. Cargo bed; 2. Handle; 3. Support leg; 4. Wheel; 5. First mounting rod; 6. Mounting seat; 7. Round rod; 8. Connector; 9. Second mounting rod; 10. Axle; 11. Support rod; 12. Limiting plate; 13. Snap-fit ​​seat; 14. Fixing ring; 15. Mounting groove; 16. Rotating component; 17. Rotating shaft; 18. Magnet. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a wheeled handcart with retractable wheels, including a cart 1 and a support leg 3 connected to the bottom of the cart 1. A first mounting rod 5 is fixedly installed on one side of the cart 1, and a mounting seat 6 is fixedly installed on one side of the first mounting rod 5. A round rod 7 is rotatably inserted into the inside of the mounting seat 6. A connector 8 is movably sleeved at one end of the round rod 7. An axle 10 is movably inserted into one side of the other end of the connector 8. A wheel 4 is sleeved on the outside of the axle 10. A support rod 11 is fixedly connected to the other side of the other end of the connector 8. A second mounting rod 9 is fixedly connected to one side of the cart 1. The support rod 11 overlaps with the second mounting rod 9. A limiting plate 12 is fixedly connected to one end of the round rod 7. The limiting plate 12 is located on one side of the mounting seat 6. There are two second mounting rods 9, which are symmetrically arranged on both sides of the cart 1 with the vertical axis of the cart 1 as the center.

[0018] In practice, when it is not necessary to push the truck bed 1, the workers can retract the wheels 4 to fix the truck bed 1 and prevent it from moving due to the slippage of the wheels 4. The workers can first slightly lift the first mounting rod 5 and then support it. After supporting it, the workers can hold the support rod 11 and lift the support rod 11 from below the first mounting rod 5. When the support rod 11 moves around the mounting base 6, the round rod 7 rotates inside the mounting base 6. One end of the connector 8 rotates with the round rod 7, and the other end of the connector 8 rotates synchronously with the support rod 11. The support rod 11 drives the wheels 4 to rotate through the axle 10, so that the wheels 4 move from below the first mounting rod 5 to above the first mounting rod 5. The support rod 11 can be attached to the second mounting rod 9. The second mounting rod 9 is set with a certain inclination angle to facilitate the attachment of the support rod 11.

[0019] See Figure 1-4 A snap-fit ​​seat 13 is fixedly connected to one side of the second mounting rod 9. The support rod 11 is movably snapped into the snap-fit ​​seat 13. A mounting groove 15 is provided on one side of the snap-fit ​​seat 13. A rotating component 16 is movably connected inside the mounting groove 15. A fixing ring 14 is fixedly connected to one end of the rotating component 16. The fixing ring 14 is sleeved on the outside of the support rod 11. A magnet 18 is fixedly connected to the end of the fixing ring 14 away from the rotating component 16. A rotating shaft 17 is fixedly installed inside the mounting groove 15. The rotating shaft 17 is inserted into the inside of the rotating component 16.

[0020] In specific implementation, based on the above implementation, a snap-fit ​​seat 13 is also provided on the second mounting rod 9. When the support rod 11 is attached to the second mounting rod 9, it can be snapped into the inside of the snap-fit ​​seat 13. The operator can rotate the fixing ring 14, which can rotate around the pivot 17 on one side of the snap-fit ​​seat 13. The fixing ring 14 is rotated from the outside of the snap-fit ​​seat 13 to fit against the support rod 11. The snap-fit ​​seat 13 is made of magnet 18. The magnet 18 at one end of the fixing ring 14 is magnetically connected to the snap-fit ​​seat 13. At this time, the snap-fit ​​seat 13 and the fixing ring 14 form a ring to fix the support rod 11, which facilitates the improvement of the stability of the wheel 4 when it is retracted upward.

[0021] See Figure 1-4 A handle 2 is fixedly connected to one side of the truck bed 1, and the outer side of the handle 2 is provided with an integrally formed anti-slip texture.

[0022] Working principle: Before use, the operator can hold the support rod 11 and lift it from below the first mounting rod 5. When the support rod 11 moves around the mounting base 6, the round rod 7 rotates inside the mounting base 6. One end of the connector 8 rotates with the round rod 7, and the other end of the connector 8 rotates synchronously with the support rod 11. The support rod 11 drives the wheel 4 to rotate through the axle 10, so that the wheel 4 moves from below the first mounting rod 5 to above the first mounting rod 5. The support rod 11 can be attached to the second mounting rod 9. The second mounting rod 9 is set with a certain angle of inclination to facilitate the attachment of the support rod 11. The second mounting rod 9 is also equipped with a snap-fit ​​seat 13. When the support rod 11 is attached to the second mounting rod 9, it can be snapped into the inside of the snap-fit ​​seat 13. The operator can rotate the fixing ring 14. The fixing ring 14 can rotate around the pivot 17 on one side of the snap-fit ​​seat 13. Rotate the fixing ring 14 from the outside of the snap-fit ​​seat 13 until it fits against the support rod 11. The snap-fit ​​seat 13 is made of magnet 18. The magnet 18 at one end of the fixing ring 14 is magnetically connected to the snap-fit ​​seat 13. At this time, the snap-fit ​​seat 13 and the fixing ring 14 form a ring to fix the support rod 11, which facilitates the improvement of the stability of the wheel 4 when it is retracted upward.

Claims

1. A wheeled handcart, comprising a cargo box (1) and support legs (3) connected to the bottom of the cargo box (1), characterized in that, A first mounting rod (5) is fixedly installed on one side of the truck bed (1), and a mounting seat (6) is fixedly installed on one side of the first mounting rod (5). A round rod (7) is rotatably inserted into the inside of the mounting seat (6). A connector (8) is movably sleeved on one end of the round rod (7). An axle (10) is movably inserted on one side of the other end of the connector (8). A wheel (4) is sleeved on the outside of the axle (10). A support rod (11) is fixedly connected to the other side of the other end of the connector (8). A second mounting rod (9) is fixedly connected to one side of the truck bed (1). The support rod (11) overlaps with the second mounting rod (9).

2. A handcart with retractable wheels as described in claim 1, characterized in that: A snap-fit ​​seat (13) is fixedly connected to one side of the second mounting rod (9). The support rod (11) is movably snapped into the snap-fit ​​seat (13). A mounting groove (15) is provided on one side of the snap-fit ​​seat (13). A rotating part (16) is movably connected inside the mounting groove (15). A fixing ring (14) is fixedly connected to one end of the rotating part (16). The fixing ring (14) is sleeved on the outside of the support rod (11).

3. A handcart with retractable wheels as described in claim 2, characterized in that: A magnet (18) is fixedly connected to the end of the fixed ring (14) away from the rotating part (16).

4. A handcart with retractable wheels as described in claim 2, characterized in that: A rotating shaft (17) is fixedly installed inside the mounting groove (15), and the rotating shaft (17) is inserted into the interior of the rotating component (16).

5. A handcart with retractable wheels as described in claim 2, characterized in that: A handle (2) is fixedly connected to one side of the truck bed (1), and the outer side of the handle (2) is provided with an integrally formed anti-slip texture.

6. A wheeled handcart with retractable wheels as described in claim 1, characterized in that: One end of the round rod (7) is fixedly connected to a limiting plate (12), which is located on one side of the mounting base (6).

7. A handcart with retractable wheels as described in claim 1, characterized in that: There are two second mounting rods (9), which are symmetrically arranged on both sides of the truck bed (1) with the vertical axis of the truck bed (1) as the center.

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