Folding frame easy to store and pet cart

Abstract

The utility model discloses a folding frame easy to store and a pet stroller, the folding frame comprises a first bottom frame, a first side frame, a second bottom frame, a second side frame and a top frame, one end of the first bottom frame is hinged to the lower end of the first side frame through a first assembly part and is limited to rotate on the upper side of the first assembly part, and the other end of the first bottom frame is hinged to the lower end of the second side frame through a second assembly part. One end of the second bottom frame is hinged to the lower end of the second side frame through a second assembly part and is limited to rotate on the upper side of the second assembly part, and the other end of the first bottom frame is connected with the other end of the second bottom frame in a folding mode; the top frame comprises a first top rod connected to the first side frame and a second top rod horizontally and rotatably connected to the second side frame, and the other end of the first top rod is detachably connected with the other end of the second top rod. The folding frame can be quickly folded and stored, and is convenient to package, carry or transport.

Description

Technical Field

[0001] This utility model relates to the field of strollers, and more particularly to a folding stroller frame and pet stroller that are easy to store. Background Technology

[0002] Existing strollers, such as a utility model patent (publication number: CN222347060U) entitled "A Pet Stroller Cage Frame Quick-Disassembly Structure", include a base frame and a frame detachably connected to the upper side of the base frame. The frame includes several rods, which are detachably connected to each other by a snap-fit ​​structure. When unfolding for use, each rod needs to be snapped together one by one. When folding for storage, each rod needs to be disassembled one by one. The operation is cumbersome and not convenient for quick folding and storage. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing an easy-to-store folding bicycle frame and pet stroller, which can be quickly folded for convenient packaging, carrying, or transportation.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A folding frame that is easy to store includes a first base frame, a first side frame, a second base frame, a second side frame, and a top frame, wherein: one end of the first base frame is hinged to the lower end of the first side frame via a first assembly and is limited to rotating on the upper side of the first assembly; one end of the second base frame is hinged to the lower end of the second side frame via a second assembly and is limited to rotating on the upper side of the second assembly; the other end of the first base frame and the other end of the second base frame can be folded together; the top frame includes a first top rod connected to the first side frame and a second top rod horizontally rotatably connected to the second side frame, the other end of the first top rod and the other end of the second top rod are detachably connected.

[0006] Preferably, the first side frame includes a first upright arranged on one side of the width direction of the first base frame, and the first top rod is horizontally rotatably connected to the first upright through a rotating structure, and is capable of horizontally rotating relative to the first upright in the other direction of the width direction of the first base frame; the second side frame includes a second upright arranged on one side of the width direction of the second base frame, and the second top rod is horizontally rotatably connected to the second upright through a rotating structure, and is capable of horizontally rotating relative to the second upright in the other direction of the width direction of the second base frame; the first top rod and the second top rod are detachably connected by a docking structure.

[0007] Preferably, the rotating structure includes an outer sleeve and an inner sleeve that is rotatably fitted inside the outer sleeve. The inner sleeve is provided with a rotating guide protruding from the outer side wall of the inner sleeve. The side wall of the outer sleeve is provided with a rotating guide groove in the horizontal direction for the rotating guide to slide horizontally inside. When the inner sleeve rotates relative to the outer sleeve, it is guided and limited by the rotating guide sliding horizontally along the rotating guide groove.

[0008] Preferably, the end of the inner sleeve is provided with an annular limiting surface that can abut against the end face of the outer sleeve. When the inner sleeve rotates relative to the outer sleeve, it is guided and limited by sliding horizontally along the end face of the outer sleeve through the annular limiting surface.

[0009] Preferably, the inner sleeve is axially movable to separate from the outer sleeve, the rotary guide groove is provided through the side wall of the outer sleeve, the side wall of the inner sleeve is provided with a telescopic opening, the rotary guide is arranged in the telescopic opening, and can telescopically move between a protruding position extending out of the rotary guide groove and a retracted position retracted into the outer sleeve, and the inner sleeve is provided with an elastic element for pushing the rotary guide to be held in the protruding position.

[0010] Preferably, the docking structure includes an outer sleeve II and an inner sleeve II fitted inside the outer sleeve II. The side wall of the outer sleeve II has a positioning hole, and the side wall of the inner sleeve II has a telescopic opening II corresponding to the positioning hole. A positioning element is provided in the telescopic opening II. The positioning element can telescopically move between a protruding position II extending out of the positioning hole and a retracted position II retracted into the outer sleeve II. An elastic element II is provided inside the inner sleeve II for pushing the positioning element to be held in the protruding position II. One of the outer sleeve II and the inner sleeve II is set on a first push rod, and the other is set on a second push rod.

[0011] Preferably, the first upright is arranged on the left side of the first base frame, and the second upright is arranged on the left side of the second base frame; the first side frame further includes a third upright arranged on the right side of the first base frame, and the second side frame further includes a fourth upright arranged on the right side of the second base frame; the top frame further includes a third top rod horizontally rotatably connected to the third upright through the rotating structure, and a fourth top rod horizontally rotatably connected to the fourth upright through the rotating structure, wherein the third top rod can rotate horizontally relative to the third upright towards the left side of the first base frame, and the fourth top rod can rotate horizontally relative to the fourth upright towards the left side of the second base frame; the other end of the third top rod and the other end of the fourth top rod are detachably connected through the docking structure.

[0012] Preferably, it further includes a first side rod and a connecting structure. The connecting structure includes a connecting rod, a connecting seat, and a first support member. The connecting rod is arranged vertically and has a sliding channel arranged vertically through it laterally. A sliding shaft is slidably connected in the sliding channel. The connecting seat is located at the upper end of the connecting rod. The other end of the first base frame is hinged to the lower end of the connecting rod through a first hinge member. The first side rods are arranged at intervals above the first base frame, and one end of the first side rod is hinged to the first upright, while the other end is hinged to the connecting seat and limited to rotating under the connecting seat. The lower end of the first support member is hinged to the first base frame through a second hinge member. The second hinge members are arranged at intervals on the side of the first hinge member close to the first upright. The upper end of the first support member is hinged to the sliding shaft, which can drive the sliding shaft to slide to abut against the upper end of the sliding channel and form a triangular support structure with the connecting rod and the first base frame when the first base frame is unfolded relative to the second base frame. When the first base frame is folded relative to the second base frame, it drives the sliding shaft to slide towards the lower end of the sliding channel.

[0013] Preferably, the lower ends of the first, second, third, and fourth uprights are respectively provided with mounting structures, and the bottom of each mounting structure is detachably connected with a wheel assembly. Moreover, the bottom surface of the mounting structure can form a mounting surface that can be placed on the medium surface after the wheel assembly is detached from the mounting structure.

[0014] This utility model also provides a pet stroller, including the above-mentioned folding frame and a cloth cover structure disposed on the folding frame.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] The folding frame provided by this utility model can be folded by disassembling the first and second top rods, rotating the first top rod horizontally relative to the first side frame, and rotating the second top rod horizontally relative to the second side frame. The entire frame is folded by folding the first and second base frames together. The first and second assembly components drive the first and second side frames to move relative to each other as the base frames fold together. This relative movement of the first and second side frames causes the first and second top rods to move closer together, thus achieving rapid folding and storage of the entire frame. The folded size is small, making it convenient for packaging, carrying, or transportation. When unfolded, it allows for... By unfolding the first and second base frames and supporting and limiting them on the upper sides of the first and second assemblies respectively, the stability of the entire base frame in the unfolded state is maintained. The unfolding movement of the first and second base frames causes the first and second side frames to move away from each other relatively. The relative translational movement of the first and second side frames causes the first and second top rods to move away from each other. By rotating the first top rod horizontally backward relative to the first side frame and rotating the second top rod horizontally forward relative to the second side frame, and connecting the first and second top rods, the stability of the entire folding frame in the unfolded state is maintained. This allows the entire folding frame to be quickly unfolded and used. The operation is simple, convenient, and easy to use.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of the unfolded state of a folding frame according to an embodiment of the present invention.

[0020] Figure 2 This is a structural schematic diagram of the folding frame in a folded state according to an embodiment of the present invention.

[0021] Figure 3 This is a partial structural diagram of a folding frame according to an embodiment of the present invention. Figure 1 .

[0022] Figure 4 This is an exploded view of the rotating structure according to an embodiment of the present invention.

[0023] Figure 5 This is an exploded view of the docking structure according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of a connector according to an embodiment of the present invention.

[0025] Figure 7 This is a partial structural diagram of a folding frame according to an embodiment of the present invention. Figure 2 .

[0026] Figure 8 This is a partial cross-sectional view of a folding frame according to an embodiment of the present invention.

[0027] Reference numerals: First base frame 1, First base rod 11, Second base frame 2, Second base rod 21, First side frame 3, First upright rod 31, Third upright rod 32, Second side frame 4, Second upright rod 41, Fourth upright rod 42, Top frame 5, First top rod 51, Second top rod 52, Third top rod 53, Fourth top rod 54, First assembly 61, Second assembly 62, Connecting part four 63, Connecting part five 64, Mounting structure 65, Mounting surface 651, Connecting shaft 652, Locking groove 6521, Inner sleeve three 653, Outer sleeve three 654, Telescopic channel 655, Locking element 656, Button 657, Rotating structure 71, Outer sleeve one 711, Inner sleeve one 712, Rotating guide element 713, Rotating guide groove 714, Annular limiting surface 715, Telescopic opening 1; 716, Elastic element 1; 717, Docking structure; 72, Outer sleeve 2; 721, Inner sleeve 2; 722, Positioning element; 723, Positioning hole; 724, Annular abutment surface; 725, Telescopic opening 2; 726, Elastic element 2; 727, First side rod 8; Second side rod 9; Wheel assembly 10; Connecting structure 100; Connecting rod 101; Sliding channel 1011; Connecting seat 102; Connecting part 1 1021; Connecting part 2 1022; Connecting part 3 1023; First support element 103; First recess 1031; Sliding shaft 104; First hinge element 105; Second hinge element 106; Second support element 107; Second recess 1071; Third hinge element 108; Fourth hinge element 109; Folding armrest 200. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0033] like Figures 1-8As shown in the figure, as an embodiment of the present invention, an easy-to-store folding frame is provided, including a first base frame 1, a first side frame 3, a second base frame 2, a second side frame 4, and a top frame 5. One end of the first base frame 1 is hinged to the lower end of the first side frame 3 via a first assembly 61 and is limited to rotating on the upper side of the first assembly 61. One end of the second base frame 2 is hinged to the lower end of the second side frame 4 via a second assembly 62 and is limited to rotating on the upper side of the second assembly 62. The other end of the first base frame 1 and the other end of the second base frame 2 can be folded together. The top frame 5 includes a first top rod 51 horizontally rotatably connected to the first side frame 3 and a second top rod 52 horizontally rotatably connected to the second side frame 4. The other end of the first top rod 51 and the other end of the second top rod 52 are detachably connected. In this embodiment, the folding frame can be folded by disassembling the first top rod 51 and the second top rod 52, rotating the first top rod 51 horizontally relative to the first side frame 3, and rotating the second top rod 52 horizontally relative to the second side frame 4. The entire frame is folded by folding the first base frame 1 and the second base frame 2 together. The first assembly 61 and the second assembly 62 then drive the first side frame 3 and the second side frame 4 to move relative to each other as the first base frame 1 and the second base frame 2 fold together. This relative movement of the first side frame 3 and the second side frame 4 causes the first top rod 51 and the second top rod 52 to move closer together, thus achieving rapid folding and storage of the entire folding frame. The folded size is small, making it convenient for packaging, carrying, or transportation. When unfolded, it can be folded by... The first base frame 1 and the second base frame 2 unfold and are respectively supported and limited on the upper side of the first assembly 61 and the second assembly 62, maintaining the stability of the entire base frame in the unfolded state. The unfolding movement of the first base frame 1 and the second base frame 2 causes the first side frame 3 and the second side frame 4 to move away from each other. The relative translational movement of the first side frame 3 and the second side frame 4 causes the first top rod 51 and the second top rod 52 to move away from each other. By rotating the first top rod 51 horizontally backward relative to the first side frame 3 and rotating the second top rod 52 horizontally forward relative to the second side frame 4, the first top rod 51 and the second top rod 52 are connected to each other, maintaining the stability of the entire folding frame in the unfolded state. This allows the entire folding frame to be quickly unfolded and used, with simple and convenient operation.

[0034] like Figure 3As shown, in some specific embodiments, the first side frame 3 includes a first upright 31 arranged on one side of the width direction of the first base frame 1. A first top rod 51 is horizontally rotatably connected to the first upright 31 via a rotating structure 71, and can rotate horizontally relative to the first upright 31 towards the other side of the width direction of the first base frame 1. This allows the first top rod 51 to be arranged along the width direction of the first base frame 1 or substantially along the width direction of the folding frame, thereby significantly reducing the front and rear space occupied by the top rod 5 after the entire folding frame is folded, facilitating packaging, carrying, or transportation. The second side frame 4 includes a second upright 41 arranged on one side of the width direction of the second base frame 2. A second top rod 52 is horizontally rotatably connected to the second upright 41 via a rotating structure 71, and can rotate horizontally relative to the second upright 41 towards the other side of the width direction of the second base frame 2. This allows the second top rod 52 to be arranged along the width direction of the second base frame 2 or substantially along the width direction of the folding frame, further significantly reducing the front and rear space occupied by the top rod 5 after the entire folding frame is folded, facilitating packaging, carrying, or transportation. The first top rod 51 and the second top rod 52 are detachably connected by a docking structure 72, which facilitates quick connection or disassembly, thereby enabling the folding frame to be folded or unfolded quickly.

[0035] like Figure 4As shown, in some specific embodiments, the rotating structure 71 includes an outer sleeve 711 and an inner sleeve 712 rotatably fitted inside the outer sleeve 711. The inner sleeve 712 is provided with a rotating guide 713 protruding from the outer wall of the inner sleeve 712. The side wall of the outer sleeve 711 is provided with a rotating guide groove 714 in the horizontal direction for the rotating guide 713 to slide horizontally inside. When the inner sleeve 712 rotates relative to the outer sleeve 711, it is guided and limited by the rotating guide 713 sliding horizontally along the rotating guide groove 714, so as to ensure that the inner sleeve 712 rotates stably in the horizontal direction relative to the outer sleeve 711, thereby ensuring that the first push rod 51 rotates stably in the horizontal direction relative to the first upright rod 31, and ensuring that the second push rod 52 rotates stably in the horizontal direction relative to the second upright rod 41. In this embodiment, in the rotating structure 71 arranged between the first push rod 51 and the first upright rod 31, the outer sleeve 711 is connected to the first upright rod 31, and the outer sleeve 711 is a part of the upper end of the first upright rod 31. The inner sleeve 712 is connected to the first push rod 51, and the inner sleeve 712 is a part of the first push rod 51 away from the end of the second push rod 52. In the rotating structure 71 arranged between the second push rod 52 and the second upright rod 41, the outer sleeve 711 is connected to the second upright rod 41, and the outer sleeve 711 is a part of the upper end of the second upright rod 41. The inner sleeve 712 is connected to the second push rod 52, and the inner sleeve 712 is a part of the second push rod 52 away from the end of the first push rod 51, thus simplifying the structure. In other embodiments, in the rotating structure 71 arranged between the first top rod 51 and the first upright rod 31, the outer sleeve 711 can be connected to the first top rod 51 and the inner sleeve 712 can be connected to the first upright rod 31. Alternatively, in the rotating structure 71 arranged between the second top rod 52 and the second upright rod 41, the outer sleeve 711 can be connected to the second top rod 52 and the inner sleeve 712 can be connected to the second upright rod 41.

[0036] In some specific embodiments, the end of the inner sleeve 712 is provided with an annular limiting surface 715 that can abut against the end face of the outer sleeve 711. When the inner sleeve 712 rotates relative to the outer sleeve 711, it is guided and limited by sliding horizontally along the end face of the outer sleeve 711 through the annular limiting surface 715, thereby further ensuring that the inner sleeve 712 rotates stably in the horizontal direction relative to the outer sleeve 711.

[0037] In some specific embodiments, the inner sleeve 712 can move along its axial direction to separate from the outer sleeve 711. The rotary guide groove 714 is provided through the side wall of the outer sleeve 711. The side wall of the inner sleeve 712 is provided with a telescopic opening 716. The rotary guide 713 is arranged in the telescopic opening 716 and can telescopically move between a protruding position extending out of the rotary guide groove 714 and a retracted position retracted into the outer sleeve 711. The inner sleeve 712 is provided with an elastic member 717 for pushing the rotary guide 713 to be held in the protruding position. In this embodiment, the operator can press the rotating guide 713 outside the outer sleeve 711 to move the rotating guide 713 from the protruding position to the storage position. Then, the inner sleeve 712, the rotating guide 713, and the elastic element 717 can be pulled out of the outer sleeve 711 as a whole and placed separately, allowing the first push rod 51 and the second push rod 52 to be placed separately. This reduces the height of the entire folded frame, further reducing the space occupied and facilitating packaging, carrying, or transportation. The operator can also place the inner sleeve 712, the rotating guide 713, and the elastic element 717 as a whole in the outer sleeve 711. In this design, the rotating guide 713 moves from the storage position to the protruding position under the elastic force of the elastic member 717, thereby realizing the horizontal rotational connection between the inner sleeve 712 and the outer sleeve 711. The operation is simple and convenient, allowing for quick assembly or disassembly between the first push rod 51 and the first upright rod 31, or between the second push rod 52 and the second upright rod 41. In addition, the rotating guide 713 and the rotating guide groove 714 can serve as a guide structure for the horizontal rotation of the inner sleeve 712 relative to the outer sleeve 711, and can also serve as a detachable connection structure between the inner sleeve 712 and the outer sleeve 711, thus achieving a multi-purpose effect. In this embodiment, the elastic element 717 is configured as a V-shaped spring sheet, which facilitates positioning within the inner sleeve 712. In other embodiments, the elastic element 717 may also be configured as a spring sheet structure of other shapes, or as a spring or other structure that can provide elastic support. In other embodiments, the rotating guide groove 714 may not penetrate the side wall of the outer sleeve 711, but the rotating guide 713 may be moved from the protruding position 1 to the storage position 1 by applying force through other operating structures.

[0038] like Figure 5As shown, in some specific embodiments, the docking structure 72 includes an outer sleeve 721 and an inner sleeve 722 sleeved inside the outer sleeve 721. The side wall of the outer sleeve 721 is provided with a positioning hole 724, and the side wall of the inner sleeve 722 is provided with a telescopic opening 726 corresponding to the positioning hole 724. A positioning member 723 is provided in the telescopic opening 726. The positioning member 723 can telescopically move between a protruding position 2 extending out of the positioning hole 724 and a retracted position 2 inside the outer sleeve 721. An elastic member 727 is provided in the inner sleeve 722 for pushing the positioning member 723 to be held in the protruding position 2. In this embodiment, the operator can press the positioning member 723 outside the outer sleeve 721 to move the positioning member 723 from the protruding position 2 to the storage position 2, and then pull the inner sleeve 722, the positioning member 723, and the elastic member 727 out of the outer sleeve 721 as a whole, so that the first push rod 51 is separated from the second push rod 52. The operator can place the inner sleeve 722, the positioning member 723, and the elastic member 727 as a whole in the outer sleeve 721, and the positioning member 723 moves from the storage position 2 to the protruding position 2 under the elastic force of the elastic member 727, thereby realizing the connection between the inner sleeve 722 and the outer sleeve 721. The operation is simple and convenient, and the first push rod 51 and the second push rod 52 can be quickly connected or disassembled. The inner sleeve 722 has an annular abutment surface 725 at its end, which abuts against the end face of the outer sleeve 721. When the inner sleeve 722 is connected to the outer sleeve 721, the annular abutment surface 725 abuts against the end face of the outer sleeve 721 to limit the connection and ensure a stable connection between the inner sleeve 722 and the outer sleeve 721. In this embodiment, the outer sleeve 721 is connected to the first push rod 51, and the outer sleeve 721 is a portion of the first push rod 51 located away from the first upright rod 31. The inner sleeve 722 is connected to the second push rod 52, and the inner sleeve 722 is a portion of the second push rod 52 located away from the second upright rod 41, simplifying the structure. In other embodiments, the outer sleeve 721 can be located on the second push rod 52, and the inner sleeve 722 can be located on the first push rod 51, or the docking structure 72 can be set as other detachable connection structures.

[0039] like Figure 1 , Figure 2As shown, in some specific embodiments, the first upright 31 is arranged on the left side of the first base frame 1, the second upright 41 is arranged on the left side of the second base frame 2, the first top rod 51 is capable of horizontally rotating relative to the first upright 31 towards the right side of the first base frame 1, and the second top rod 52 is capable of horizontally rotating relative to the second upright 41 towards the right side of the second base frame 2. The first side frame 3 also includes a third upright 32 arranged on the right side of the first base frame 1, and the second side frame 4 also includes a fourth upright 42 arranged on the right side of the second base frame 2. The top frame 5 also includes a third top rod 53 horizontally rotatably connected to the third upright 32 via a rotating structure 71, and a fourth top rod 54 horizontally rotatably connected to the fourth upright 42 via a rotating structure 71. The third top rod 53 is capable of horizontally rotating relative to the third upright 32 towards the left side of the first base frame 1, and the fourth top rod 54 is capable of horizontally rotating relative to the fourth upright 42 towards the left side of the second base frame 2. The other end of the third top rod 53 and the other end of the fourth top rod 54 are detachably connected via a docking structure 72. In this embodiment, when the folding frame is unfolded, the first top rod 51, the second top rod 52, the third top rod 53, and the fourth top rod 54 can jointly support the first side frame 3 and the second side frame 4, which is more conducive to maintaining the stability of the entire folding frame when unfolded. When the folding frame is folded, the first top rod 51, the second top rod 52, the third top rod 53, and the fourth top rod 54 are arranged along the width direction of the folding frame or are arranged basically along the width direction of the folding frame. The first top rod 51 and the third top rod 53 are staggered and stacked on the upper side of the first side frame 3 in the front-back direction, and the second top rod 52 and the fourth top rod 54 are staggered and stacked on the upper side of the second side frame 4 in the front-back direction. Thus, after the entire folding frame is folded, the front-back space and the left-right space occupied by the top frame 5 are greatly reduced, which is convenient for packaging, carrying, or transportation. In this embodiment, the first top rod 51, the second top rod 52, the third top rod 53, and the fourth top rod 54 are each configured as an integrally formed rod structure, which is simple and stable, and are respectively configured as arc-shaped rod structures. In other embodiments, the first top rod 51, the second top rod 52, the third top rod 53, or the fourth top rod 54 can also be formed by connecting multiple rod segments in sequence, or configured as a right-angled or other shaped rod structure.In this embodiment, the rotation angle range of the inner sleeve 712 relative to the outer sleeve 711 is set to 90°. This ensures the structural stability of the rotating structure 71 while allowing the first top rod 51 to rotate horizontally 90° relative to the first upright 31, the second top rod 52 to rotate horizontally 90° relative to the second upright 41, the third top rod 53 to rotate horizontally 90° relative to the third upright 32, and the fourth top rod 54 to rotate horizontally 90° relative to the fourth upright 42. This allows the first top rod 51, the second top rod 52, the third top rod 53, and the fourth top rod 54, arranged in the front-to-back direction, to be stowed along the width direction of the folding frame when folded. This significantly reduces the front-to-back space occupied by the top frame 5 after the entire folding frame is folded. In other embodiments, the rotation angle range of the inner sleeve 712 relative to the outer sleeve 711 can also be set to 80°-100° or other angles.

[0040] like Figure 3As shown, in some specific embodiments, it also includes a first side rod 8 and a connecting structure 100. The connecting structure 100 includes a connecting rod 101, a connecting seat 102, and a first support member 103. The connecting rod 101 is arranged vertically and has a sliding channel 1011 arranged vertically through it. A sliding shaft 104 is slidably connected in the sliding channel 1011. The connecting seat 102 is located at the upper end of the connecting rod 101. The other end of the first base frame 1 is hinged to the lower end of the connecting rod 101 through a first hinge member 105. The first side rods 8 are arranged at intervals above the first base frame 1, and one end of the first side rod 8 is hinged to the first upright 31, and the other end is hinged to the connecting seat 102 and limited to rotate under the connecting seat 102, so as to maintain the stability of the first side frame 3 and the second side frame 4 in the unfolded state. The lower end of the first support member 103 is hinged to the first base frame 1 via a second hinge member 106. The second hinge members 106 are spaced apart on the side of the first hinge member 105 near the first upright 31. The upper end of the first support member 103 is hinged to the sliding shaft 104. When the first base frame 1 is unfolded relative to the second base frame 2, the sliding shaft 104 can be driven to slide until it abuts against the upper end of the sliding channel 1011 and forms a triangular support structure with the connecting rod 101 and the first base frame 11. This prevents the first base frame 1 from rotating relative to the connecting rod 101 and accidentally folding when the folding frame is unfolded, thus making it more conducive to maintaining the stability of the entire folding frame when unfolded. Moreover, this triangular support structure distributes the force of the base frame on the connecting structure 100 and the first upright 31. The side rod 8, the first side frame 3, and the entire base frame are connected to the connecting structure 100, the first side rod 8, the first side frame 3, and the entire base frame to jointly bear the force of the base frame, resulting in strong load-bearing capacity. In addition, the first support member 103 can drive the sliding shaft 104 to slide towards the lower end of the sliding channel 1011 when the first base frame 1 is folded relative to the second base frame 2, thereby ensuring that the first base frame 1 can rotate downward relative to the connecting rod 101 for folding. In other words, the first support member 103 can drive the sliding shaft 104 to slide vertically along the sliding channel 1011 to change position as the first base frame 1 and the second base frame 2 are folded. There is no need for people to manually operate the first support member 103, thereby realizing the rapid unfolding and folding of the entire folding frame, which is convenient to use.

[0041] In some specific embodiments, the sliding channel 1011 is arranged laterally through the inner and outer sides of the connecting rod 101 along the width direction of the first frame 1, and the sliding shaft 104 is arranged in the sliding channel 1011 along the width direction of the first frame 1 and can slide vertically along the length direction of the sliding channel 1011.

[0042] In some specific embodiments, the first base frame 1 includes a first base rod 11, which is hinged to the inner side of the lower end of the connecting rod 101 via a first hinge 105. One end of the first base rod 11 away from the connecting rod 101 is hinged to the lower end of the first upright rod 31 via a first assembly 61. The lower end of the first support member 103 is hinged to the outer side of the first base rod 11 via a second hinge 106, and the upper end is hinged to the inner end of the sliding shaft 104. A first recess 1031 is recessed on the lower side of the first support member 103. When the first frame 1 is folded relative to the second frame 2, the first hinge 105 is arranged within the first recess 1031 to prevent interference with the folding movement of the first base frame 1 during the folding process due to the first support member 103 and the first hinge 105 abutting against each other. In this embodiment, the first support member 103 is configured as an arc-shaped sheet structure with its arc center located on the side of the first support member 103 away from the first side frame 3. The sheet structure configuration can reduce the spacing width between the first bottom rod 11 and the connecting rod 101, making the structure arrangement more compact. The first notch 1031 is formed by the inner arc surface of the arc-shaped sheet structure, which makes the overall structural design of the first support member 103 simple. In other embodiments, the first support member 103 can also be configured as a sheet structure of other shapes such as square or triangular, or as a non-sheet structure such as rod or tube.

[0043] In some specific embodiments, a second side rod 9 is also included, and the connecting structure 100 further includes a second support member 107. The other end of the second base frame 2 is hinged to the lower end of the connecting rod 101 via a third hinge member 108. The second side rods 9 are arranged at intervals above the second base frame 2, and one end of the second side rod 9 is hinged to the second upright 41, and the other end is hinged to the connecting seat 102 and limited to rotating under the connecting seat 102, further maintaining the stability of the first side frame 3 and the second side frame 4 in the unfolded state. The lower end of the second support member 107 is hinged to the second base frame 2 via a fourth hinge member 109. The fourth hinge member 109 is spaced apart from the third hinge member 108 on the side near the second upright 41. The upper end of the second support member 107 is hinged to the outer end of the sliding shaft 104. When the first frame 1 is unfolded relative to the second frame 2, it can work with the first support member 103 to drive the sliding shaft 104 to slide until it abuts against the upper end of the sliding channel 1011 and forms a triangular support structure with the connecting rod 101 and the second base frame 2. This prevents the second base frame 2 from rotating relative to the connecting rod 101 and accidentally folding when the folding frame is unfolded, thus making it more conducive to maintaining the stability of the entire folding frame when unfolded. Moreover, the two triangular support structures distribute the force of the base frame to the connecting structure 100, the first side rod 8, the first side frame 3, and the second upright 41. The side rod 9, the second side frame 4, and the entire base frame allow the connecting structure 100, the first side rod 8, the first side frame 3, the second side rod 9, the second side frame 4, and the entire base frame to jointly bear the load of the base frame, further enhancing the load-bearing capacity. In addition, when the first frame 1 is folded relative to the second frame 2, the second support member 107, together with the first support member 103, drives the sliding shaft 104 to slide towards the lower end of the sliding channel 1011, thereby ensuring that the first base frame 1 and the second base frame 2 can be folded downward relative to the connecting rod 101. Furthermore, since the first base frame 1 and the second base frame 2 are respectively hinged to the inner and outer ends of the sliding shaft 104, they can support the inner and outer ends of the sliding shaft 104 respectively, resulting in better stability of the sliding shaft 104 sliding along the sliding channel 1011 and improving the smoothness of the folding process of the folding frame.

[0044] In some specific embodiments, the second base frame 2 includes a second base rod 21, which is hinged to the outer side of the lower end of the connecting rod 101 via a third hinge 108. One end of the second base rod 21, away from the connecting rod 101, is hinged to the lower end of the second upright rod 41 via a second assembly 62. A fourth hinge 109 is hinged to the inner side of the second base rod 21 at the lower end of the second support rod 107. A second recess 1071 is recessed on the lower side of the second support rod 107. When the first frame 1 is folded relative to the second frame 2, the third hinge 108 is arranged within the second recess 1071 to prevent interference with the folding movement of the second base frame 2 due to contact between the second support rod 107 and the third hinge 108 during the folding process. In this embodiment, the second support member 107 is configured as an arc-shaped sheet structure with its arc center located on the side of the second support member 107 away from the second side frame 4. The sheet structure configuration can reduce the spacing width between the second bottom rod 21 and the connecting rod 101, making the structural arrangement more compact. The second notch 1071 is formed by the inner arc surface of the arc-shaped sheet structure, which makes the overall structural design of the second support member 107 simple. In other embodiments, the second support member 107 can also be configured as a sheet structure of other shapes such as square or triangular, or as a non-sheet structure such as rod or tube.

[0045] In some specific embodiments, the first hinge 105 and the third hinge 108 are configured as an integral structure, which simplifies the structure and facilitates rapid assembly. In other embodiments, the first hinge 105 and the third hinge 108 may also be configured as independent structures.

[0046] like Figure 6As shown, in some specific embodiments, the connecting seat 102 includes a first connecting portion 1021, a second connecting portion 1022, and a third connecting portion 1023, each with an opening facing downwards. The upper end of the connecting rod 101 extends into the first connecting portion 1021 and is fixedly connected to the connecting seat 102 via a connector. The second connecting portion 1022 is located in front of the first connecting portion 1021, and the front of the second connecting portion 1022 is configured as an opening for horizontally arranging the first side rod 8. One end of the first side rod 8, away from the first upright rod 31, is rotatably connected to the second connecting portion 1022 via a hinge. The first side rod 8 abuts against the top wall of the opening to limit its position on the lower side of the connecting seat 102. Connecting part three 1023 is arranged behind connecting part one 1021, and the rear of connecting part three 1023 is set as an opening two for horizontally arranging the second side rod 9. The end of the second side rod 9 away from the third upright 32 is rotatably connected to the connecting part three 1023 by a hinge. The second side rod 9 is limited to the lower side of the connecting seat 102 by its side wall abutting against the top wall of the opening two. The hinge point between the first side rod 8 and the connecting seat 102 is arranged at intervals in front of the connecting rod 101, and the hinge point between the second side rod 9 and the connecting seat 102 is arranged at intervals behind the connecting rod 101, thereby avoiding mutual interference between the first side rod 8 and the first bottom rod 11, and between the second side rod 9 and the second bottom rod 21 during the folding process.

[0047] like Figure 7 As shown, in some specific embodiments, the first assembly 61 and the second assembly 62 respectively include a connecting part 4 63 and a connecting part 5 64 connected to one side of the connecting part 4 63. The connecting part 4 63 is fixedly connected to the lower end of the first upright 31 or the second upright 41 through a connector. The connecting part 5 64 is provided with a hinge groove with the opening facing upward. The side of the hinge groove is set as an opening 3 for horizontally arranging the first bottom rod 11 or the second bottom rod 21. One end of the first bottom rod 11 or the second bottom rod 21 away from the connecting rod 101 is rotatably connected in the hinge groove through a hinge, and its side wall abuts against the bottom wall of the opening 3 to limit it to the upper side of the first assembly 61 or the second assembly 62.

[0048] like Figure 3As shown, in some specific embodiments, two connecting structures 100 are provided, and the two connecting structures 100 are respectively arranged between the two sides of the first base frame 1 in the width direction and the second base frame 2. The first base frame 1 includes the first base rods 11 respectively arranged on both sides in the width direction. One end of one first base rod 11 is hinged to the lower end of the first upright 31 through the first assembly 61, and the other end is hinged to the lower end of the connecting rod 101 of the left connecting structure 100 through the first hinge member 105. The other first base rod 11 has one end hinged to the lower end of the third upright 32 through the first assembly 61, and the other end hinged to the lower end of the connecting rod 101 of the right connecting structure 100 through the first hinge member 105. The second base frame 2 includes second base rods 21 respectively disposed on both sides of its width direction. One end of one second base rod 21 is hinged to the lower end of the second upright 41 via a second assembly 62, and the other end is hinged to the lower end of the connecting rod 101 of the left connecting structure 100 via a third hinge 108. One end of the other second base rod 21 is hinged to the lower end of the fourth upright 42 via a second assembly 62, and the other end is hinged to the lower end of the connecting rod 101 of the right connecting structure 100 via the third hinge 108. Two first side rods 8 are provided. One first side rod 8 is spaced above the first base frame 1, with one end hinged to the first upright 31 and the other end hinged to the connecting seat 102 of the left connecting structure 100 and limited to rotating under the connecting seat 102. The other first side rod 8 is spaced above the first base frame 1, with one end hinged to the third upright 32 and the other end hinged to the connecting seat 102 of the right connecting structure 100 and limited to rotating under the connecting seat 102. Two second side rods 9 are provided. One second side rod 9 is arranged at intervals above the second base frame 2, with one end hinged to the second upright 41 and the other end hinged to the connecting seat 102 of the left connecting structure 100 and limited to rotating under the connecting seat 102. The other second side rod 9 is arranged at intervals above the second base frame 2, with one end hinged to the fourth upright 42 and the other end hinged to the connecting seat 102 of the right connecting structure 100 and limited to rotating under the connecting seat 102.

[0049] like Figure 1 As shown, in some specific embodiments, the lower ends of the first upright 31, the second upright 41, the third upright 32, and the fourth upright 42 are respectively provided with mounting structures 65. The bottom of each mounting structure 65 is detachably connected to a wheel assembly 10, and the bottom surface of the mounting structure 65 can form a mounting surface 651 for placement on a surface such as the ground or a car rear seat after the wheel assembly 10 is detached from the mounting structure 65. This allows the folding frame to be used as a trolley frame after the wheel assembly 10 is installed, such as... Figure 1 As shown, it can be used as a frame structure such as a pet cage after the wheel assembly 10 is disassembled. Figure 3 As shown, it has more diverse functions.

[0050] like Figure 8 As shown, in some specific embodiments, the mounting structure 65 includes a connecting shaft 652 disposed on the wheel assembly 10, an inner sleeve 653 sleeved outside the connecting shaft 652, and an outer sleeve 654 sleeved outside the inner sleeve 653. The outer sleeve 654 and the inner sleeve 653 are relatively fixedly connected by screws or other connecting parts. The side wall of the connecting shaft 652 is recessed with a locking groove 6521. The side walls of the outer sleeve 654 and the inner sleeve 653 are respectively provided with telescopic channels 655 corresponding to the locking groove 6521. A locking member 656 is provided in the telescopic channel 655. The locking member 656 can... The outer sleeve 654 extends into the inner sleeve 653 and engages with the locking groove 6521, moving between the protruding position 3 and the retracted position 3. A button 657 is movably connected to the outer sleeve 654 for switching the locking member 656 between the protruding position 3 and the retracted position 3. A spring or other elastic element can be provided between the button 657 and the outer sleeve 654 to keep the locking member 656 in the protruding position 3 when the button 657 is applied, facilitating quick disassembly or assembly of the wheel assembly 10. This allows the folding frame to quickly switch between a stroller frame and a pet carrier frame structure, making it convenient to use. The outer sleeve 654 and the connecting part 63 are designed with the same structure, simplifying the overall structure. The lower end of the first upright 31, the second upright 41, the third upright 32, or the fourth upright 42 is sleeved between the inner sleeve 3 653 and the outer sleeve 3 654 and is circumferentially fixed relative to the inner sleeve 3 653 and the outer sleeve 3 654. The mounting surface 651 is formed by the bottom surface of the inner sleeve 3 653.

[0051] like Figure 1 As shown, in some specific embodiments, a folding handle 200 is also provided on the second upright 41 and the fourth upright 42, which facilitates pushing or pulling the folding handle 200 to drive the folding frame to move through the wheel assembly 10 when the folding frame is used as a trolley frame.

[0052] As another embodiment of this utility model, a pet stroller is also provided, including the above-mentioned folding frame and a cloth cover structure disposed on the folding frame. Since the pet stroller of this embodiment adopts the folding frame provided by this utility model, it can realize the quick folding and storage of the pet stroller, which is convenient for packaging, carrying or transportation.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0054] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A foldable frame for a stowable vehicle, the frame comprising: It includes a first base frame, a first side frame, a second base frame, a second side frame, and a top frame, wherein: One end of the first base frame is hinged to the lower end of the first side frame via a first assembly and is limited to rotating on the upper side of the first assembly. One end of the second base frame is hinged to the lower end of the second side frame via a second assembly and is limited to rotating on the upper side of the second assembly. The other end of the first base frame and the other end of the second base frame can be folded and connected. The top frame includes a first top rod connected to a first side frame and a second top rod horizontally rotatably connected to a second side frame, wherein the other end of the first top rod is detachably connected to the other end of the second top rod.

2. The folding frame according to claim 1, characterized in that: The first side frame includes a first upright arranged on one side of the width direction of the first base frame. The first top rod is horizontally rotatably connected to the first upright through a rotating structure and can rotate horizontally relative to the first upright towards the other side of the width direction of the first base frame. The second side frame includes a second upright arranged on one side of the width direction of the second base frame. The second top rod is horizontally rotatably connected to the second upright through a rotating structure and can rotate horizontally relative to the second upright towards the other side of the width direction of the second base frame. The first push rod and the second push rod are detachably connected by a docking structure.

3. The folding frame of claim 2, wherein: The rotating structure includes an outer sleeve and an inner sleeve that is rotatably fitted inside the outer sleeve. The inner sleeve has a rotating guide protruding from the outer side wall. The side wall of the outer sleeve has a rotating guide groove in the horizontal direction for the rotating guide to slide horizontally. When the inner sleeve rotates relative to the outer sleeve, it is guided and limited by the rotating guide sliding horizontally along the rotating guide groove.

4. The folding frame of claim 3, wherein: The end of the inner sleeve is provided with an annular limiting surface that can abut against the end face of the outer sleeve. When the inner sleeve rotates relative to the outer sleeve, it is guided and limited by sliding horizontally along the end face of the outer sleeve through the annular limiting surface.

5. The folding frame of claim 3, wherein: The inner sleeve 1 can move along its axial direction to separate from the outer sleeve 1. The rotary guide groove is provided through the side wall of the outer sleeve 1. The side wall of the inner sleeve 1 is provided with a telescopic opening 1. The rotary guide is arranged in the telescopic opening 1 and can telescopically move between a protruding position 1 extending out of the rotary guide groove 1 and a retracted position 1 retracted into the outer sleeve 1. The inner sleeve 1 is provided with an elastic element 1 for pushing the rotary guide to be held in the protruding position 1.

6. The folding frame according to claim 2, characterized in that: The docking structure includes an outer sleeve II and an inner sleeve II fitted inside the outer sleeve II. The side wall of the outer sleeve II has a positioning hole, and the side wall of the inner sleeve II has a telescopic opening II corresponding to the positioning hole. A positioning element is provided in the telescopic opening II. The positioning element can telescopically move between a protruding position II extending out of the positioning hole and a retracted position II retracted into the outer sleeve II. An elastic element II is provided inside the inner sleeve II to push the positioning element to be held in the protruding position II. One of the outer sleeve II and the inner sleeve II is set on a first push rod, and the other is set on a second push rod.

7. The folding frame of any one of claims 2-6, wherein: The first upright is arranged on the left side of the first base frame, and the second upright is arranged on the left side of the second base frame; The first side frame also includes a third upright arranged on the right side of the first base frame, and the second side frame also includes a fourth upright arranged on the right side of the second base frame; The top frame also includes a third top rod that is horizontally rotatably connected to the third upright through the rotating structure, and a fourth top rod that is horizontally rotatably connected to the fourth upright through the rotating structure. The third top rod can rotate horizontally relative to the third upright toward the left side of the first base frame, and the fourth top rod can rotate horizontally relative to the fourth upright toward the left side of the second base frame. The other end of the third push rod and the other end of the fourth push rod are detachably connected by the docking structure.

8. The folding frame of claim 7, wherein: It also includes a first side rod and a connecting structure, the connecting structure including a connecting rod, a connecting seat and a first support member, the connecting rod is arranged vertically and has a sliding channel arranged vertically through it, a sliding shaft is slidably connected in the sliding channel, and the connecting seat is located at the upper end of the connecting rod; The other end of the first base frame is hinged to the lower end of the connecting rod via a first hinge. The first side rods are spaced apart above the first base frame, with one end of the first side rod hinged to the first upright and the other end hinged to the connecting seat and limited to rotating under the connecting seat. The lower end of the first support member is hinged to the first base frame via a second hinge. The second hinges are spaced apart on the side of the first hinge near the first upright. The upper end of the first support member is hinged to the sliding shaft, which can drive the sliding shaft to slide to abut against the upper end of the sliding channel and form a triangular support structure with the connecting rod and the first base frame when the first base frame is unfolded relative to the second base frame. When the first base frame is folded relative to the second base frame, the sliding shaft is driven to slide towards the lower end of the sliding channel.

9. The folding frame of claim 8, wherein: The lower ends of the first, second, third, and fourth uprights are respectively provided with mounting structures. The bottom of each mounting structure is detachably connected with a wheel assembly, and the bottom surface of the mounting structure can form a mounting surface that can be placed on the medium surface after the wheel assembly is detached from the mounting structure.

10. A pet stroller characterized by: It includes a folding frame as described in any one of claims 1-9, and a fabric cover structure disposed on the folding frame.

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