Folding cart

Abstract

The utility model discloses a folding cart, which relates to the technical field of folding carts, and comprises two frames which are oppositely arranged, a folding frame which is connected between the two frames and has a folding state or an unfolding state, and a connecting piece which is hinged with the two frames and the folding frame, and a locking piece is movably arranged on the connecting piece. When the folding frame is in the folded state, the locking piece is separated from the folding frame, the folding frame drives the two frames to be close to each other to be folded, when the folding frame is in the unfolded state, the folding frame drives the two frames to be away from each other to be unfolded, and the locking piece is used for being fixedly connected with the folding frame to enable the folding frame to be kept in the unfolded state. When the folding bicycle is unfolded, the two bicycle frames are relatively far away from each other to be unfolded by pressing the connecting piece downwards, the folding frame is kept unfolded by matching the locking piece with the folding frame, and when the folding bicycle needs to be folded, the folding frame is separated from the locking piece by pulling the locking piece, and the locking piece is lifted upwards to enable the two bicycle frames to draw close to each other to be folded, so that the effects of rapid folding and unfolding are achieved. And the operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of folding carts, in particular to a folding cart. Background Art

[0002] Folding carts are widely used in life, including camping activities, daily shopping, etc. They are deeply loved by people because they can be folded after use, saving storage space and being easy to carry.

[0003] In the existing technology, when the folding frames need to be unfolded, most folding strollers require the two frames to be pulled relatively apart at the same time. When the folding frames are in the unfolded state, locking members at different positions of the folding frames need to be pressed to lock the locking members and thus keep the folding frames in the unfolded state. When the folding frames need to be folded, the locking members need to be simultaneously pried to unlock the locking members and push the frames to bring them relatively together. The operation is complicated and not convenient for quick folding and unfolding. Utility Model Content

[0004] The utility model provides a folding stroller in order to solve the problem that the folding stroller cannot be quickly unfolded and folded.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a folding cart, comprising two frames arranged opposite to each other, a folding frame connected between the two frames and having a folded state or an unfolded state, and a connecting member hinged to the two frames and the folding frame, wherein a locking member is movably provided on the connecting member, and when the folding frame is in the folded state, the locking member disengages from the folding frame, and the folding frame drives the two frames to move toward each other for folding; when the folding frame is in the unfolded state, the folding frame drives the two frames to move relatively away from each other for unfolding, and the locking member is used to be fixedly connected to the folding frame to keep the folding frame in the unfolded state.

[0006] As described above, the locking member is provided with a limiting hole for limiting position, and the folding frame is provided with a fixing column, and the fixing column and the limiting hole cooperate with each other to fix the folding frame so that it remains in the unfolded state.

[0007] In the folding stroller as described above, the locking member includes a movable handle.

[0008] As described above, the folding cart has two folding components symmetrically arranged relative to the connecting member, and the folding components include a first hinge, a first short rod, a first connecting rod, a first connecting rod, a second connecting rod and a second hinge, the first hinge is fixed to a frame, the first hinge is hinged to one end of the first short rod, the other end of the first short rod is hinged to the first connecting rod and the first connecting rod, the first connecting rod is hinged to the connecting member, the first connecting rod is hinged to the second connecting rod, and the other end of the second connecting rod is hinged to the second hinge on the other frame.

[0009] In the folding stroller as described above, the height of the first hinge is higher than the height of the second hinge.

[0010] As described above, the folding stroller frame includes a column, a top hinge is provided on the top of the column, one end of the top hinge is hinged to a top connecting rod, and the top connecting rod is hinged to the connecting member.

[0011] The folding stroller as described above includes a chassis that can be deployed and retracted at the bottom of two frames, the chassis including a first chassis and a second chassis, the first chassis being hinged to one frame, the second chassis being hinged to the other frame, and the chassis being provided with a limiting assembly for limiting the folding of the chassis when the folding frame is in the deployed state.

[0012] As described above, the folding cart, the limiting assembly includes a limiting block provided on the upper side of the first base frame or the second base frame. When the folding frame is in the unfolded state, the limiting block is used to prevent the base frame from moving downward. The limiting assembly includes a connecting column for connecting the first base frame and the second base frame when the folding frame is in the unfolded state.

[0013] As described above, the folding stroller has a wheel set at the bottom of the frame for making the folding stroller movable.

[0014] The folding stroller as described above, wherein the frame is provided with a push rod.

[0015] Compared with the prior art, the beneficial effects of the present technical solution are as follows: after adopting the structure of the present invention, when the folding frame needs to be unfolded, it is necessary to press down the connecting member to move the two frames away from each other for unfolding, and the locking member on the connecting member cooperates with the folding frame to keep the folding frame in the unfolded state; when it needs to be folded, the folding frame is disengaged from the locking member by bend- ing the locking member, and the handle on the locking member is pulled upward so that the folding frame drives the two frames to move toward each other for folding, thereby achieving the effect of quick folding and unfolding, and the operation is simpler.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model in an expanded state;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model in a folded state;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model when viewed from above;

[0022] Figure 5 It is a schematic diagram of the top structure of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 5 As shown, a folding stroller includes two frames 3 arranged opposite to each other, a folding frame 1 connected between the two frames 3 and capable of being folded or unfolded, and a connecting member 2 hingedly connected to the two frames 3 and the folding frame 1. The connecting member 2 is movably provided with a locking member 21. When the folding frame 1 is in the folded state, the locking member 21 disengages from the folding frame 1, and the folding frame 1 drives the two frames 3 toward each other for folding. When the folding frame 1 is in the unfolded state, the folding frame 1 drives the two frames 3 away from each other for unfolding. The locking member 21 is used to be fixedly connected to the folding frame 1 to maintain the folding frame 1 in the unfolded state. After adopting the structure of the utility model, when the folding frame is in the unfolded state, the two frames are relatively apart and unfolded. At this time, the locking member on the connecting member cooperates with the folding frame to maintain the folding frame in the unfolded state. When folding is required, the folding frame is disengaged from the locking member by bend, and the folding frame drives the two frames toward each other for folding, thereby achieving the effect of rapid folding and unfolding, and the folding frame can be kept in the unfolded state, which is easier to operate.

[0025] As a specific solution, not a limitation, the locking member 21 is provided with a limiting hole 211 for limiting the position, and the folding frame 1 is provided with a fixing post 212. The fixing post 22 cooperates with the limiting hole 211 to secure the folding frame 1 in the expanded state. The locking member 21 includes a movable handle 213. When the fixing post 22 cooperates with the limiting hole 211, the folding frame 1 can be maintained in the expanded state. The connection between the handle 213 and the connecting member 2 is a flexible curved surface structure. When the folding stroller needs to be folded, the handle 213 is simply moved to disengage the mounting post 22 from the limiting hole 211, allowing the folding frame 1 to be quickly folded, thereby achieving a quick folding effect.

[0026] This is a specific solution and not a limitation. The folding frame 1 has two folding components 11 symmetrically arranged relative to the connecting member 2. The folding components 11 include a first hinge 111, a first short rod 112, a first connecting rod 113, a first connecting rod 114, a second connecting rod 115, and a second hinge 116. The first hinge 111 is fixed to one frame 3. The first hinge 111 is hinged to one end of the first short rod 112. The other end of the first short rod 112 is hinged to the first connecting rod 113 and the first connecting rod 114. The first connecting rod 113 is hinged to the connecting member 2. The first connecting rod 114 is hinged to one end of the second connecting rod 115. The other end of the second connecting rod 115 is hinged to the second hinge 116 on the other frame 3. By designing the folding frame to be foldable, the front frame 31 and the rear frame 32 can be moved relative to or away from each other through the linkage of the folding frame 1, thereby achieving the function of folding and unfolding the stroller. When the folding frame is in the unfolded state, two limiting holes 211 are provided for respectively fitting with the two fixing posts 212 on the two folding components 11 to pass through and fix them, so that the folding frame remains in the unfolded state.

[0027] Furthermore, to achieve a better folding effect when the folding stand 1 is folded, the height of the first hinge 111 is higher than the height of the second hinge 116. Due to the different heights of the first hinge 111 and the second hinge 115, the folding stand 1 can form a structure similar to a quadrilateral when folded, which improves the folding effect.

[0028] Furthermore, to ensure a more stable structure when the folding frame 1 is unfolded, the frame 3 includes a column 9, a top hinge 7 is provided at the top of the column 9, and a top link 8 is hingedly connected to one end of the top hinge 7. The top link 8 is hingedly connected to the connecting member 2. When the folding frame 1 is unfolded, the top link 8 is horizontal and forms a quadrilateral structure with the two frames, making the folding frame 1 more stable when unfolded.

[0029] As a specific embodiment, but not a limitation, in order to provide the folding stroller with a better load-bearing capacity, the folding stroller includes a chassis 4 that can be deployed and retracted at the bottom of the two frames 3. The chassis 4 includes a first chassis 41 and a second chassis 42. The first chassis 41 is hinged to one frame 3, and the second chassis 42 is hinged to the other frame 3. The chassis 4 is provided with a limit assembly 43 that limits the folding of the chassis 4 when the folding frame 1 is in the deployed state. The limit assembly 43 includes a limit block 431 provided on the upper side of the first chassis 41 or the second chassis 42. When the folding frame 1 is in the deployed state, the limit block 431 is used to prevent the chassis 4 from moving downward. The limit assembly 43 includes a connecting post 432 for connecting the first chassis 41 and the second chassis 42 when the folding frame 1 is in the deployed state. The through-connecting column 432 in the base frame 4 includes two columns respectively installed on the first base frame 41 and the second base frame 42. The columns have through holes. When load-bearing is required, the first base frame 41 and the second base frame 42 are placed horizontally so that the through holes overlap. Screws are passed through the through holes and then fixed with nuts. The limit block 431 can be installed on the side of the first base frame 41 or the second base frame 42 facing away from the limit component.

[0030] Furthermore, in order to make the folding cart easy to push, a wheel set 5 for making the folding cart movable is provided at the bottom of the frame 3 .

[0031] Furthermore, in order to facilitate pushing the folding cart, the frame 3 is provided with a push rod 6. Preferably, the end of the push rod 6 is configured as a clamp-shaped structure, and the push rod 6 is movably connected to the frame 3 through the clamp-shaped structure.

[0032] The specific operating principle of the utility model is:

[0033] Operation principle of the unfolded state: When the folding cart needs to be unfolded, the connecting member 2 moves downward, causing the folding frame 1 to unfold and drive the two frames 3 to move relatively apart to unfold. When the folding frame 1 is fully unfolded, the limiting hole 211 on the locking member 21 cooperates with the fixing column 212 on the folding frame 1, so that the folding frame 1 and the two frames 3 remain in the unfolded state. Then the bottom frame 4 is lowered from the frames 3 and fixed, and the folding cart can be unfolded.

[0034] Operation principle of the folded state: When the folding stroller needs to be folded, the base frame 4 is folded onto the frame 3, and then the handle is bent so that the limiting hole 211 on the locking part 21 and the fixing column 22 are disengaged from each other, and the connecting part 2 moves upward to drive the folding frame 1 to fold, and drives the two frames 3 to move towards each other for folding.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A folding cart, characterized in that: The invention comprises two vehicle frames (3) arranged opposite to each other, a folding frame (1) connected between the two vehicle frames (3) and having a folded state or an unfolded state, and a connecting member (2) hinged to the two vehicle frames (3) and the folding frame (1), wherein a locking member (21) is movably provided on the connecting member (2); when the folding frame (1) is in the folded state, the locking member (21) is separated from the folding frame (1), and the folding frame (1) drives the two vehicle frames (3) to move toward each other to fold; when the folding frame (1) is in the unfolded state, the folding frame (1) drives the two vehicle frames (3) to move away from each other to unfold, and the locking member (21) is used to be fixedly connected to the folding frame (1) so that the folding frame (1) is kept in the unfolded state.

2. The folding stroller according to claim 1, wherein: The locking member (21) is provided with a limiting hole (211) for limiting position, and the folding frame (1) is provided with a fixing column (212). The fixing column (212) is locked and matched with the limiting hole (211) to keep the folding frame (1) in an unfolded state.

3. The folding stroller according to claim 2, wherein: The locking member (21) includes a movable handle (213).

4. The folding stroller according to claim 1, wherein: The folding frame (1) comprises two folding assemblies (11) symmetrically arranged relative to the connecting member (2), the folding assembly (11) comprising a first hinge (111), a first short rod (112), a first connecting rod (113), a first connecting rod (114), a second connecting rod (115) and a second hinge (116), the first hinge (111) being fixed to a vehicle frame (3), the first hinge (111) being hinged to one end of the first short rod (112), the other end of the first short rod (112) being hinged to the first connecting rod (113) and the first connecting rod (114), the first connecting rod (113) being hinged to the connecting member (2), the first connecting rod (114) being hinged to one end of the second connecting rod (115), and the other end of the second connecting rod (115) being hinged to the second hinge (116) on the other vehicle frame (3).

5. The folding stroller according to claim 4, characterized in that: The height of the first hinge (111) is higher than the height of the second hinge (116).

6. The folding stroller according to claim 1, wherein: The vehicle frame (3) comprises a column (9), a top hinge (7) is provided on the top of the column (9), a top connecting rod (8) is hinged to one end of the top hinge (7), and the top connecting rod (8) is hinged to the connecting member (2).

7. The folding stroller according to claim 1, wherein: The invention comprises a chassis (4) which is deployable and retractable and is arranged at the bottom of two vehicle frames (3). The chassis (4) comprises a first chassis (41) and a second chassis (42). The first chassis (41) is hinged to one vehicle frame (3), and the second chassis (42) is hinged to the other vehicle frame (3). The chassis (4) is provided with a limiting component (43) for limiting the folding of the chassis (4) when the folding frame (1) is in an unfolded state.

8. The folding stroller according to claim 7, characterized in that: The limiting assembly (43) includes a limiting block (431) provided on the upper side of the first base frame (41) or the second base frame (42); when the folding frame (1) is in the unfolded state, the limiting block (431) is used to prevent the base frame (4) from moving downward; and the limiting assembly (43) includes a connecting column (432) used to connect the first base frame (41) and the second base frame (42) when the folding frame (1) is in the unfolded state.

9. The folding stroller according to claim 1, wherein: A wheel set (5) for making the folding cart movable is provided at the bottom of the frame (3).

10. The folding stroller according to claim 1, wherein: The vehicle frame (3) is provided with a push rod (6).

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