Novel folding cart

Abstract

The utility model belongs to the technical field of folding carts, and particularly relates to a novel folding cart, which adopts the following scheme that the novel folding cart comprises a bottom plate, the protection frame is fixedly mounted at the top of the bottom plate; the supporting ring is rotationally connected to the top of the protection frame; the rear frame is located at the bottom of the bottom plate; the front frame is rotationally connected with the rear frame; the connecting frame is rotationally connected with the rear frame; the handle is rotationally connected with the connecting frame; the sleeve is fixedly mounted at the top of the handle; the number of the rear wheels is two, and the two rear wheels rotate relative to the rear frame; according to the folding cart, the control block is pushed on the handle, the cart can be unlocked and folded, the cart can be conveniently stored, space is greatly saved, the cart can be rapidly locked after being unfolded, and stability is high.

Description

Technical Field

[0001] This utility model relates to the field of folding trolley technology, and in particular to a new folding trolley. Background Technology

[0002] A baby stroller is a baby's "transportation tool," a vehicle that requires assistance to push or pull. Baby strollers typically consist of a sunshade, seat cushion, bassinet, and dust cover, and their lifespan is generally three to five years. When purchasing one, the baby's age should be considered. Nowadays, baby strollers have evolved to include sleeping, eating, and playing activities.

[0003] Most existing trolleys occupy a large area and have limited folding range, making them inconvenient to store and use. Therefore, this utility model proposes a new folding trolley to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing trolleys, which are mostly large in size and have limited folding range, making them inconvenient to store and use. Therefore, a new folding trolley is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A new folding stroller, including

[0007] Base plate;

[0008] A protective frame, which is fixedly installed on the top of the base plate;

[0009] A support ring, which is rotatably connected to the top of the guard frame;

[0010] The rear frame is located at the bottom of the floor plate;

[0011] A front frame, which is rotatably connected to a rear frame;

[0012] A connecting frame, which is rotatably connected to the rear frame;

[0013] The handle is rotatably connected to the connecting frame;

[0014] A sleeve, which is fixedly installed on the top of the handle;

[0015] The rear wheels are two in number, and both rear wheels rotate with the rear frame.

[0016] Two omnidirectional wheels are provided, and both omnidirectional wheels are rotatably connected to the front frame.

[0017] The vehicle includes a connecting mechanism and an unlocking mechanism, each in two sets. The connecting mechanism is coupled with the unlocking mechanism and the connecting frame, respectively, and the unlocking mechanism is coupled with the rear frame.

[0018] The control mechanism includes: a connecting block, a return spring, a docking block, a control block, a compression spring, a slider, and a first pull rope;

[0019] The connecting block is slidably connected to the inside of the handle. The connecting block is fixedly connected to the return spring. The return spring is fixedly connected to the handle. The docking block is fixedly connected to the control block. The compression spring is fixedly connected to the handle. The control block is slidably connected to the sleeve. Both sliders are slidably connected to the inside of the handle. The two first tensions are fixedly connected to the two sliders respectively.

[0020] As a preferred embodiment of this utility model, the connecting mechanism includes: a rotating block, a meshing disc, a housing, a mating frame, a mating spring, a positioning spring, a driving disc, a second pull rope, and a positioning rod;

[0021] The rotating block is fixedly connected to the first pull rope, the rotating block is rotatably connected to the meshing disc, the meshing disc meshes with the handle, the rotating block is fixedly connected to the cooperating spring, the cooperating frame cooperates with the rotating block, the rotating block is rotatably connected to the handle, the cooperating frame is fixedly connected to the handle, the return spring is fixedly connected to the handle, the positioning rod is slidably connected to the connecting frame, the positioning spring is fixedly connected to the positioning rod and the connecting frame respectively, the second pull rope is fixedly connected to the driving disc and the positioning rod respectively, the driving disc cooperates with the outer shell, and the driving disc cooperates with the meshing disc.

[0022] As a preferred embodiment of this utility model, the unlocking mechanism includes: a drive frame, an arc-shaped rod, a front rod, a middle frame, an auxiliary frame, a folding rod, a support frame, a support rod, an auxiliary rod, and a triangular block;

[0023] The drive frame is rotatably connected to the connecting frame and the arc-shaped rod, the arc-shaped rod is rotatably connected to the triangular block, the triangular block is rotatably connected to the connecting frame, the triangular block is rotatably connected to the folding rod, the folding rod is rotatably connected to the support frame, the support rod is rotatably connected to the support frame and the rear frame, the front rod is rotatably connected to the middle frame, the middle frame is rotatably connected to the bottom plate and the rear frame, the middle frame is rotatably connected to the auxiliary frame, the auxiliary frame is rotatably connected to the auxiliary rod, and the auxiliary rod is rotatably connected to the support frame.

[0024] As a preferred embodiment of this utility model, the rotating block is provided with a plurality of equally spaced mating grooves, and the mating block is fixedly installed on the mating frame, with the outer side of the mating block slidingly contacting the inner wall of the mating groove.

[0025] As a preferred embodiment of this utility model, a rectangular through hole is provided on the rear frame, and the outer side of the positioning rod slides in contact with the inner wall of the rectangular through hole.

[0026] As a preferred embodiment of this utility model, a circular groove is provided on the front side of the drive plate, and the outer shell slides in contact with the drive plate.

[0027] Beneficial effects:

[0028] 1. After the rotating block is pulled and rotated, the mating groove on the rotating block engages with the mating block on the mating frame. The inner side of the mating groove is an inclined structure. When the rotating block rotates, it can be squeezed and moved by the mating block, so that the rotating block can push the meshing plate to disengage from the handle and unlock the handle. At this time, the handle can be folded with the connecting frame. At this time, the meshing plate can push the driving plate. The driving plate slides on the outer shell and rotates while moving through the circular slide groove to pull the second pull rope. The second pull rope can drive the positioning rod to disengage from the rear frame and unlock the connecting frame on the rear frame, so that the connecting frame can rotate on the rear frame.

[0029] 2. After the connecting frame is rotated and moves closer to the rear frame, the connecting frame can be pushed by the arc rod to rotate the drive frame, so that the drive frame can move closer to the connecting frame. The connecting frame can also push the folding rod to rotate by the triangular block, so that the folding rod can push the support frame and support rod to rotate, so that the support frame can pull the front frame to rotate on the rear frame, so that the front frame can move closer to the rear frame. The support frame will also pull the auxiliary rod and auxiliary frame, so that the auxiliary frame can pull the middle frame, the bottom plate and the front rod closer to the rear frame, thus realizing the folding of the trolley.

[0030] In this invention, the trolley can be unlocked and folded by pushing the control block on the handle, making it easy to store and saving a lot of space. It can also be quickly locked after unfolding, providing high stability. Attached Figure Description

[0031] Figure 1 This is a three-dimensional front view of the present invention;

[0032] Figure 2 This is a magnified three-dimensional side view of the present invention;

[0033] Figure 3 This is a three-dimensional side view of the unlocking mechanism of this utility model;

[0034] Figure 4 This is a rear-view magnified three-dimensional view of the connecting mechanism of this utility model;

[0035] Figure 5 This is a magnified 3D rear view of the connecting block of this utility model;

[0036] Figure 6 This is a rear-view magnified 3D view of the unlocking mechanism of this utility model.

[0037] In the diagram: 1. Base plate; 2. Protective frame; 3. Support ring; 4. Rear frame; 5. Front frame; 6. Connecting frame; 7. Handle; 8. Sleeve; 9. Connecting block; 10. Return spring; 11. Connecting block; 12. Control block; 13. Compression spring; 14. Slider; 15. First pull rope; 16. Rotating block; 17. Engaging disc; 18. Outer shell; 19. Matching frame; 20. Matching spring; 21. Positioning spring; 22. Universal wheel; 23. Rear wheel; 24. Drive frame; 25. Arc rod; 26. Front rod; 27. Intermediate frame; 28. Auxiliary frame; 29. ​​Folding rod; 30. Support frame; 31. Support rod; 32. Drive disc; 33. Second pull rope; 34. Positioning rod; 35. Auxiliary rod; 36. Triangular block. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Example

[0040] Reference Figures 1-6 A new folding stroller, including

[0041] Base plate 1;

[0042] Protective frame 2 is fixedly installed on the top of the base plate 1;

[0043] Support ring 3 is rotatably connected to the top of the guard frame 2;

[0044] Rear frame 4, the rear frame 4 is located at the bottom of the base plate 1;

[0045] The front frame 5 is rotatably connected to the rear frame 4.

[0046] Connecting frame 6 is rotatably connected to rear frame 4;

[0047] Handle 7 is rotatably connected to connecting bracket 6;

[0048] Sleeve 8 is fixedly installed on the top of handle 7;

[0049] There are two rear wheels 23, and both rear wheels 23 rotate with the rear frame 4.

[0050] Two casters 22 are provided, and both casters 22 are rotatably connected to the front frame 5.

[0051] There are two sets of connecting mechanisms and unlocking mechanisms. The connecting mechanism cooperates with the unlocking mechanism and the connecting frame 6 respectively, and the unlocking mechanism cooperates with the rear frame 4.

[0052] The control mechanism includes: a connecting block 9, a return spring 10, a docking block 11, a control block 12, a compression spring 13, a slider 14, and a first pull rope 15;

[0053] Connecting block 9 is slidably connected to the inside of handle 7. Connecting block 9 is fixedly connected to return spring 10. Return spring 10 is fixedly connected to handle 7. Connecting block 11 is fixedly connected to control block 12. Compression spring 13 is fixedly connected to handle 7. Control block 12 is slidably connected to sleeve 8. Both sliders 14 are slidably connected to the inside of handle 7. The two first tensions are fixedly connected to the two sliders 14 respectively.

[0054] With the above structure, the trolley can be unlocked and folded by pushing the control block 12 on the handle 7, making it easy to store and saving a lot of space. It can also be quickly locked after unfolding, with high stability.

[0055] As a preferred embodiment of this utility model, the connecting mechanism includes: a rotating block 16, a meshing disc 17, a housing 18, a mating frame 19, a mating spring 20, a positioning spring 21, a driving disc 32, a second pull rope 33, and a positioning rod 34.

[0056] Rotating block 16 is fixedly connected to the first pull rope 15, rotating block 16 is rotatably connected to the meshing disc 17, meshing disc 17 meshes with handle 7, rotating block 16 is fixedly connected to the cooperating spring 20, cooperating frame 19 cooperates with rotating block 16, rotating block 16 is rotatably connected to handle 7, cooperating frame 19 is fixedly connected to handle 7, return spring 10 is fixedly connected to handle 7, positioning rod 34 is slidably connected to connecting frame 6, positioning spring 21 is fixedly connected to positioning rod 34 and connecting frame 6 respectively, second pull rope 33 is fixedly connected to driving disc 32 and positioning rod 34 respectively, driving disc 32 cooperates with housing 18, driving disc 32 cooperates with meshing disc 17, and rotating block 16... After being pulled and rotated, the mating groove on the rotating block 16 engages with the mating block on the mating frame 19. The inner side of the mating groove has an inclined structure. When the rotating block 16 rotates, it can be squeezed and moved by the mating block, so that the rotating block 16 can push the meshing disc 17 to disengage from the handle 7 and unlock the handle 7. At this time, the handle 7 can be folded with the connecting frame 6. At this time, the meshing disc 17 can push the driving disc 32. The driving disc 32 slides on the outer shell 18 and can rotate while moving through the circular slide groove to pull the second pull rope 33. The second pull rope 33 can drive the positioning rod 34 to disengage from the rear frame 4 and unlock the connecting frame 6 on the rear frame 4, so that the connecting frame 6 can rotate on the rear frame 4.

[0057] As a preferred embodiment of this utility model, the unlocking mechanism includes: a drive frame 24, an arc-shaped rod 25, a front rod 26, a middle frame 27, an auxiliary frame 28, a folding rod 29, a support frame 30, a support rod 31, an auxiliary rod 35, and a triangular block 36.

[0058] The drive frame 24 is rotatably connected to the connecting frame 6 and the arc-shaped rod 25 respectively. The arc-shaped rod 25 is rotatably connected to the triangular block 36. The triangular block 36 is rotatably connected to the connecting frame 6. The triangular block 36 is rotatably connected to the folding rod 29. The folding rod 29 is rotatably connected to the support frame 30. The support rod 31 is rotatably connected to the support frame 30 and the rear frame 4 respectively. The front rod 26 is rotatably connected to the intermediate frame 27. The intermediate frame 27 is rotatably connected to the bottom plate 1 and the rear frame 4 respectively. The intermediate frame 27 is rotatably connected to the auxiliary frame 28. The auxiliary frame 28 is rotatably connected to the auxiliary rod 35. The auxiliary rod 35 is rotatably connected to the support frame 30. When the connecting frame 6 is rotated... After the rear frame 4 moves closer, the connecting frame 6 can push the drive frame 24 to rotate via the arc rod 25, so that the drive frame 24 can move closer to the connecting frame 6. The connecting frame 6 can also push the folding rod 29 to rotate via the triangular block 36, so that the folding rod 29 can push the support frame 30 and the support rod 31 to rotate, so that the support frame 30 can pull the front frame 5 to rotate on the rear frame 4, so that the front frame 5 can move closer to the rear frame 4. Furthermore, the support frame 30 will also pull the auxiliary rod 35 and the auxiliary frame 28, so that the auxiliary frame 28 can pull the middle frame 27, the bottom plate 1 and the front rod 26 closer to the rear frame 4, thereby realizing the folding of the trolley.

[0059] As a preferred embodiment of this utility model, the rotating block 16 is provided with a plurality of equally spaced mating grooves, and the mating block is fixedly installed on the mating frame 19. The outer side of the mating block slides in contact with the inner wall of the mating groove. The mating groove and the mating block are used to squeeze the rotating block 16 to move horizontally when the mating block is pulled.

[0060] As a preferred embodiment of this utility model, a rectangular through hole is provided on the rear frame 4, and the outer side of the positioning rod 34 slides in contact with the inner wall of the rectangular through hole. The rectangular through hole is used for the insertion of the positioning rod 34, so that the positioning rod 34 can prevent the connecting frame 6 from rotating on the rear frame 4.

[0061] As a preferred embodiment of this utility model, a circular groove is provided on the front side of the drive plate 32, and the outer shell 18 slides in contact with the drive plate 32. The circular groove is used to cooperate with the outer shell 18 so that the drive plate 32 can rotate when it is pushed.

[0062] The working principle of this utility model is as follows: By pushing the control block 12 on the handle 7, the control block 12 can disengage the docking frame from the connecting block 9, unlocking the connecting block 9. At this time, the initial state of the return spring 10 is in a stretched state, and the return spring 10 will reset, causing the connecting block 9 to move upward. At this time, the connecting block 9 can engage with the docking block 11. The docking block 11 can prevent the control block 12 from resetting, thus continuously compressing the compression spring 13. When the connecting block 9 moves upward, it will squeeze the two sliders 14 closer to each other, so that the sliders 14 can pull the two first pull ropes 15, and the two first pull ropes 15 can pull the docking block 11. When the rotating block 16 is pulled and rotated, the mating groove on the rotating block 16 engages with the mating block on the mating frame 19. The inner side of the mating groove is inclined. When the rotating block 16 rotates, it can be squeezed and moved by the mating block, so that the rotating block 16 can push the engagement plate 17 to disengage from the handle 7, unlocking the handle 7. At this time, the handle 7 can be folded with the connecting frame 6. At this time, the engagement plate 17 can push the driving plate 32. The driving plate 32 slides on the outer shell 18 and can rotate while moving through the circular slide groove, thereby pulling the second pull rope 33. The second pull rope 33 can drive the positioning rod 34 to disengage from the rear frame 4, and then connect to the rear frame 4. When the connecting frame 6 is unlocked, it can rotate on the rear frame 4. After the connecting frame 6 is rotated closer to the rear frame 4, it can push the drive frame 24 to rotate via the arc rod 25, allowing the drive frame 24 to move closer to the connecting frame 6. Furthermore, the connecting frame 6 can push the folding rod 29 to rotate via the triangular block 36, allowing the folding rod 29 to push the support frame 30 and support rod 31 to rotate. This allows the support frame 30 to pull the front frame 5 to rotate on the rear frame 4, bringing the front frame 5 closer to the rear frame 4. Additionally, the support frame 30 will pull the auxiliary rod 35 and auxiliary frame 28, allowing the auxiliary frame 28 to pull the intermediate frame 27 and the base plate. 1 and the front rod 26 move closer to the rear frame 4 to fold the trolley, making it easy to store and saving a lot of space. Rotating the connecting frame 6 on the rear frame 4 can reset the trolley. At this time, pulling the connecting block 9 will disengage it from the docking block 11 and reset the control block 12. The connecting block 9 can also reset the two sliders 14 and the two first pull ropes 15, which can reset the engagement plate 17 and the positioning rod 34. The engagement plate 17 engages with the handle 7 to position the handle 7. The positioning rod 34 is inserted into the rear frame 4 to position the connecting frame 6, thus positioning the entire trolley with high stability.

[0063] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new folding trolley, characterized in that, include Base plate (1); A protective frame (2) is fixedly installed on the top of the base plate (1); A support ring (3) is rotatably connected to the top of the guard frame (2); The rear frame (4) is located at the bottom of the base plate (1); The front frame (5) is rotatably connected to the rear frame (4); A connecting frame (6) is rotatably connected to the rear frame (4); Handle (7), which is rotatably connected to the connecting frame (6); Sleeve (8), which is fixedly installed on the top of handle (7); The rear wheel (23) has two rear wheels (23), and both rear wheels (23) rotate with the rear frame (4); Two casters (22) are provided, and both casters (22) are rotatably connected to the front frame (5). The connecting mechanism and the unlocking mechanism are provided in two sets. The connecting mechanism is respectively matched with the unlocking mechanism and the connecting frame (6), and the unlocking mechanism is matched with the rear frame (4). The control mechanism includes: a connecting block (9), a return spring (10), a docking block (11), a control block (12), a compression spring (13), a slider (14), and a first pull rope (15); The connecting block (9) is slidably connected to the inside of the handle (7). The connecting block (9) is fixedly connected to the return spring (10). The return spring (10) is fixedly connected to the handle (7). The docking block (11) is fixedly connected to the control block (12). The compression spring (13) is fixedly connected to the handle (7). The control block (12) is slidably connected to the sleeve (8). Both sliders (14) are slidably connected to the inside of the handle (7). The two first tensions are fixedly connected to the two sliders (14) respectively.

2. The novel folding trolley according to claim 1, characterized in that, The connecting mechanism includes: a rotating block (16), a meshing disc (17), a housing (18), a mating frame (19), a mating spring (20), a positioning spring (21), a driving disc (32), a second pull rope (33), and a positioning rod (34); The rotating block (16) is fixedly connected to the first pull rope (15), the rotating block (16) is rotatably connected to the meshing disc (17), the meshing disc (17) meshes with the handle (7), the rotating block (16) is fixedly connected to the cooperating spring (20), the cooperating frame (19) cooperates with the rotating block (16), the rotating block (16) is rotatably connected to the handle (7), the cooperating frame (19) is fixedly connected to the handle (7), the reset spring (10) is fixedly connected to the handle (7), the positioning rod (34) is slidably connected to the connecting frame (6), the positioning spring (21) is fixedly connected to the positioning rod (34) and the connecting frame (6) respectively, the second pull rope (33) is fixedly connected to the driving disc (32) and the positioning rod (34) respectively, the driving disc (32) cooperates with the outer shell (18), and the driving disc (32) cooperates with the meshing disc (17).

3. A novel folding trolley according to claim 1, characterized in that, The unlocking mechanism includes: a drive frame (24), an arc rod (25), a front rod (26), a middle frame (27), an auxiliary frame (28), a folding rod (29), a support frame (30), a support rod (31), an auxiliary rod (35), and a triangular block (36); The drive frame (24) is rotatably connected to the connecting frame (6) and the arc rod (25) respectively. The arc rod (25) is rotatably connected to the triangular block (36). The triangular block (36) is rotatably connected to the connecting frame (6). The triangular block (36) is rotatably connected to the folding rod (29). The folding rod (29) is rotatably connected to the support frame (30). The support rod (31) is rotatably connected to the support frame (30) and the rear frame (4) respectively. The front rod (26) is rotatably connected to the intermediate frame (27). The intermediate frame (27) is rotatably connected to the base plate (1) and the rear frame (4) respectively. The intermediate frame (27) is rotatably connected to the auxiliary frame (28). The auxiliary frame (28) is rotatably connected to the auxiliary rod (35). The auxiliary rod (35) is rotatably connected to the support frame (30).

4. A novel folding trolley according to claim 2, characterized in that, The rotating block (16) has multiple mating grooves arranged at equal intervals, and the mating frame (19) is fixedly installed with a mating block. The outer side of the mating block slides in contact with the inner wall of the mating groove.

5. A novel folding trolley according to claim 2, characterized in that, A rectangular through hole is provided on the rear frame (4), and the outer side of the positioning rod (34) slides in contact with the inner wall of the rectangular through hole.

6. A novel folding trolley according to claim 2, characterized in that, A circular groove is provided on the front side of the drive plate (32), and the outer shell (18) slides in contact with the drive plate (32).

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