Folding bicycle with handrail and trundle linkage folding structure

Abstract

The utility model discloses a folding vehicle with a handrail and trundle linkage folding structure, which comprises a vehicle bottom plate, a storage groove is arranged on the upper surface of the vehicle bottom plate, first handrails are symmetrically connected in the storage groove through two limiting bolts, one ends of the two first handrails are movably inserted with a second handrail together, and the other ends of the two first handrails are movably inserted with the trundle linkage folding structure. The first handrail and the second handrail are fixedly connected through bolts, an avoiding groove is formed in one end of the vehicle bottom plate, a connecting beam is fixedly connected to the bottom wall of the vehicle bottom plate through bolts, two connecting bases are symmetrically connected to the outer side of the connecting beam in a sleeving mode, and two trundle bodies are symmetrically arranged on the bottom walls of the two connecting bases. And a fixing seat is fixedly arranged on the bottom wall of the vehicle bottom plate, a fixing assembly is arranged in the fixing seat, the fixing assembly can fix the positions of the two connecting seats, through the arrangement of the structure, the trundle body can be stored and folded, the occupied space of the device is reduced, and therefore carrying and shelving are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tools, in particular to a folding vehicle with a handrail and a caster linkage folding structure. Background Art

[0002] The pallet truck, still in use today as an indispensable transport tool, is a transport vehicle that is pushed and pulled by human hands. Despite the continuous development of pallet truck material handling technology, pallet trucks remain an indispensable transport tool. Their widespread use in production and daily life stems from their low cost, simple maintenance, ease of operation, and light weight. They can operate in areas where motor vehicles are inconvenient, and are particularly convenient for transporting light items over short distances.

[0003] However, the current cart structure mostly has the armrests fixedly mounted on the bottom plate, and the casters are also fixedly mounted on the bottom plate, so the armrests and casters are fixed and cannot be stored. Therefore, when the cart is not needed for transporting items, the cart cannot be well stored, making it occupy a large space and inconvenient to carry and put away. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a folding cart with a linked folding structure of armrests and casters, which can solve the technical problem that the armrests and casters are fixed and cannot be stored. Therefore, when the cart is not needed for transporting items, the cart cannot be well stored, which makes it occupy a large space and inconvenient to carry and put away.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: A folding bicycle with a linked folding structure of armrests and casters, comprising a vehicle floor, a storage groove is provided on the upper surface of the vehicle floor, a first armrest is symmetrically connected to the storage groove by two limit latches, one end of the two first armrests are movably inserted together to form a second armrest, the first armrest and the second armrest are fixedly connected by bolts, an avoidance groove is provided at one end of the vehicle floor, a connecting beam is fixedly connected to the bottom wall of the vehicle floor by bolts, two connecting seats are symmetrically sleeved on the outer side of the connecting beam, two caster bodies are symmetrically provided on the bottom walls of the two connecting seats, a fixing seat is fixedly provided on the bottom wall of the vehicle floor, a fixing assembly is provided in the fixing seat, and the fixing assembly can fix the positions of the two connecting seats.

[0006] As a preferred technical solution of the present invention, the fixing assembly includes a placement groove, an insertion rod, a block, a spring, and a toggle rod. Two placement grooves are symmetrically provided in the fixing seat, and an insertion rod is movably inserted in each of the two placement grooves. A block is fixedly provided on the outer sides of the two insertion rods, and a spring is provided on the outer sides of the two insertion rods. A toggle rod is fixedly connected to one end of the two insertion rods close to each other, and a socket is provided on the connecting seat to be plugged in and connected to the insertion rod limit.

[0007] As a preferred technical solution of the present invention, two limiting grooves are provided on the surface of the fixing seat, and the two toggle rods are limitedly slidably arranged in the limiting grooves.

[0008] As a preferred technical solution of the present invention, three connection holes are provided at equal distances at both ends of the second handrail.

[0009] As a preferred technical solution of the present invention, two double-lifting holes are symmetrically provided on both sides of the upper surface of the vehicle floor, and a single-lifting hole is provided on one side of the upper surface of the vehicle floor.

[0010] As a preferred technical solution of the present invention, a reinforcing rib for protecting the vehicle floor is fixedly connected to each of the four corners of the vehicle floor by bolts.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The rotation setting of the connecting seat and the caster body is realized by the rotation connection of the connecting beam and the connecting seat. The caster body is rotated and stored to the bottom wall of the vehicle floor. The stopper is squeezed by the spring and then pushed. The pushed stopper drives the insertion rod toward the socket opened on the connecting seat and is inserted into the socket, thereby limiting and fixing the caster body that is rotated and stored to the bottom wall of the vehicle floor. The setting of this structure can store and fold the caster body, reduce the space occupied by the device, and thus facilitate carrying and shelving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom of the vehicle floor panel of the utility model;

[0015] Figure 3 This is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0017] Figure 5This is a schematic diagram of the three-dimensional structure of the local structure of the utility model;

[0018] Among them: 1. Car floor; 2. Storage slot; 3. First armrest; 4. Second armrest; 5. Connecting hole; 6. Limiting pin; 7. Avoidance slot; 8. Double-lifting hole; 9. Single-lifting hole; 10. Reinforcement rib; 11. Connecting beam; 12. Connecting seat; 13. Caster body; 14. Insertion hole; 15. Fixed seat; 16. Placement slot; 17. Insert rod; 18. Block; 19. Spring; 20. Toggle rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] Example

[0021] Please refer to Figure 1-5As shown, the utility model provides a folding bicycle with a linked folding structure of armrests and casters, including a vehicle floor 1, first, a storage groove 2 is opened on the upper surface of the vehicle floor 1, and then a first armrest 3 is symmetrically connected to the storage groove 2 through two limit latches 6, and then a limit slot is opened through one end of the first armrest 3, and at the same time, two bolts are symmetrically screwed and connected on both sides of the vehicle floor 1, and one end of the two bolts is respectively connected to one end of the two limit latches 6 for limited rotation, and the limit latch 6 can be snapped into and inserted into the limit slot opened through one end of the first armrest 3, and two card slots that are snap-fitted and connected to one end of the limit latch 6 are symmetrically opened in the vehicle floor 1, and the card slots are connected to the storage groove 2, and a second armrest 4 is movably inserted into one end of the two first armrests 3, and the two first armrests 3 are fixedly connected to the second armrest 4 by bolts, and at the same time, three connection holes are equidistantly opened at both ends of the second armrest 4. 5. Through the setting of the three connecting holes 5, the height of the telescopic lifting of the second armrest 4 is adjusted to three gears. After adjustment, the position between the first armrest 3 and the second armrest 4 is fixed by directly inserting the bolt on the outside of the first armrest 3 into the connecting hole 5. Then, an avoidance groove 7 is opened at one end of the vehicle floor 1. Through the avoidance groove 7, when unfolding, the hand can pass through the avoidance groove 7 and then hold the second armrest 4, thereby facilitating the rotation and erection of the first armrest 3 and the second armrest 4 through the second armrest 4. At the same time, a connecting beam 11 is fixedly connected to the bottom wall of the vehicle floor 1 by bolts, and then two connecting seats 12 are symmetrically sleeved and connected on the outside of the connecting beam 11, and two caster bodies 13 are symmetrically provided on the bottom walls of the two connecting seats 12. Then, a fixing seat 15 is fixedly provided on the bottom wall of the vehicle floor 1, and finally a fixing assembly is provided in the fixing seat 15, and the fixing assembly can fix the positions of the two connecting seats 12.

[0022] When the entire device is folded and stored, the second armrest 4 is first retracted into the first armrest 3, and then the first armrest 3 and the second armrest 4 are fixed by bolts. Then the first armrest 3 and the second armrest 4 are stored and placed in the storage groove 2, and then the limit pin 6 is moved by the bolt. The limit pin 6 passes through the threaded hole opened in the side wall of the vehicle floor 1, and then the bolt is screwed into the threaded hole to push the limit pin 6 to move, so that one end of the limit pin 6 first passes through the limit slot opened at one end of the first armrest 3, and then the other end of the limit pin 6 moves and extends into the slot opened in the vehicle floor 1. At this time, the slot limits the limit pin 6. , so that the limit latch 6 will not rotate when the first armrest 3 is limited in the later stage, and at the same time, the first armrest 3 and the second armrest 4 stored in the vehicle floor 1 are limited and fixed. Then, the two connecting seats 12 and the caster bodies 13 respectively provided on the two connecting seats 12 are rotated, so that the four caster bodies 13 originally perpendicular to the vehicle floor 1 are now stored parallel to the bottom wall of the vehicle floor 1. Then, the positions of the two connecting seats 12 are limited and fixed by the fixing assembly provided on the fixing seat 15, so that the two connecting seats 12 are prevented from rotating again on the connecting beam 11, thereby allowing the folded and stored caster bodies 13 to be unfolded;

[0023] As a further implementation of this embodiment, Figure 1-5 As shown, the fixing assembly includes a placement groove 16, an insertion rod 17, a block 18, a spring 19, and a toggle rod 20. First, two placement grooves 16 are symmetrically opened in the fixing seat 15, and then a insertion rod 17 is movably inserted in each of the two placement grooves 16. A block 18 is fixedly sleeved on the outside of the two insertion rods 17. At the same time, a spring 19 is sleeved on the outside of the two insertion rods 17. One end of the two insertion rods 17 close to each other is fixedly connected to a toggle rod 20, and two limiting grooves are opened on the surface of the fixing seat 15. The two toggle rods 20 are limitedly slidably set in the limiting grooves. Finally, a socket 14 is opened on the connecting seat 12 to be limitedly inserted and connected to the insertion rod 17.

[0024] When limiting and fixing the positions of the two connecting seats 12, first, the two toggle rods 20 can be slid by the index finger and thumb to bring one end of the two insertion rods 17 closer to each other, and then the two connecting seats 12 are rotated and the two toggle rods 20 are released. At this time, the two springs 19 respectively squeeze the stoppers 18, and then push the stoppers 18. The pushed stoppers 18 bring the two insertion rods 17 closer to the insertion holes 14 opened on the two connecting seats 12, thereby completing the limiting and fixing of the two connecting seats 12;

[0025] As a further implementation of this embodiment, Figure 1-5As shown, two double lifting holes 8 are symmetrically provided on both sides of the upper surface of the vehicle bottom plate 1, and then a single lifting hole 9 is provided on one side of the upper surface of the vehicle bottom plate 1. Through the two double lifting holes 8 and the single lifting hole 9, the entire device can be lifted and carried after being stored. Finally, a reinforcing rib 10 is fixedly connected at each corner of the vehicle bottom plate 1 by bolts. The arrangement of the four reinforcing ribs 10 can protect the vehicle bottom plate 1 and prevent the corners of the vehicle bottom plate 1 from being damaged by bumps.

[0026] Specific working principle:

[0027] When the device is in use, the positions of the first armrest 3 and the second armrest 4 can be adjusted by cooperating with the three fixing seats 15 and the bolts, so that the telescopic expansion length of the first armrest 3 and the second armrest 4 can be adjusted according to the user's usage habits. Then, when the entire device is folded and stored, the second armrest 4 is first retracted into the first armrest 3, and then the first armrest 3 and the second armrest 4 are fixed by the bolts. Then, the two bolts connected to the limit rotation of the limit pins 6 are rotated so that the two limit pins 6 move toward the side away from the first armrest 3, and then the first armrest 3 and the second armrest 4 are stored in the storage groove 2, and then the bolts are rotated again to push the first armrest 3 and the second armrest 4 into the storage groove 2. Move the two limit pins 6 again toward the limit slots provided through the bottom end of the first armrest 3, and engage and insert into the limit slots, then slide the two toggle rods 20 with the index finger and thumb to make one end of the two insertion rods 17 approach each other, then rotate the two connecting seats 12, release the two toggle rods 20, at this time the two springs 19 squeeze the block 18 respectively, and then push the block 18, and the pushed block 18 brings the two insertion rods 17 toward the sockets 14 provided on the two connecting seats 12 respectively, thereby completing the limit fixation of the two connecting seats 12, preventing the two connecting seats 12 from rotating again on the connecting beam 11, thereby allowing the folded and stored caster body 13 to unfold.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding vehicle with a folding structure of armrests and casters, comprising a vehicle floor (1), characterized in that: The upper surface of the vehicle floor (1) is provided with a receiving groove (2), and a first armrest (3) is symmetrically connected to the receiving groove (2) through two limit pins (6). One end of the two first armrests (3) is movably inserted into a second armrest (4), and the first armrest (3) and the second armrest (4) are fixedly connected by bolts. An avoidance groove (7) is provided at one end of the vehicle floor (1), and the bottom wall of the vehicle floor (1) is fixedly connected to a connecting beam (11) by bolts. Two connecting seats (12) are symmetrically sleeved and connected to the outer side of the connecting beam (11), and two caster bodies (13) are symmetrically provided on the bottom walls of the two connecting seats (12). A fixing seat (15) is fixedly provided on the bottom wall of the vehicle floor (1), and a fixing component is provided in the fixing seat (15), and the fixing component can fix the positions of the two connecting seats (12).

2. A folding bicycle with a folding structure of armrests and casters according to claim 1, characterized in that: The fixing assembly comprises a placement groove (16), an insertion rod (17), a block (18), a spring (19), and a toggle rod (20); two placement grooves (16) are symmetrically provided in the fixing seat (15); an insertion rod (17) is movably inserted in each of the two placement grooves (16); a block (18) is fixedly sleeved on the outside of the two insertion rods (17); a spring (19) is sleeved on the outside of the two insertion rods (17); one end of the two insertion rods (17) close to each other is fixedly connected to a toggle rod (20); and a socket (14) is provided on the connecting seat (12) and is limitedly inserted and connected to the insertion rod (17).

3. The folding bicycle with a folding structure of armrests and casters according to claim 2, characterized in that: Two limiting grooves are provided on the surface of the fixing seat (15), and the two toggle rods (20) are slidingly arranged in the limiting grooves.

4. The folding bicycle with a folding structure of armrests and casters according to claim 1, characterized in that: Three connection holes (5) are provided at equal distances at both ends of the second handrail (4).

5. The folding bicycle with a folding structure of armrests and casters according to claim 1, characterized in that: Two double-lifting holes (8) are symmetrically provided on both sides of the upper surface of the vehicle bottom plate (1), and a single-lifting hole (9) is provided on one side of the upper surface of the vehicle bottom plate (1).

6. The folding bicycle with a folding structure of armrests and casters according to claim 1, characterized in that: A reinforcing rib (10) for protecting the vehicle bottom plate (1) is fixedly connected to each of the four corners of the vehicle bottom plate (1) by means of bolts.

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