Folding stroller frame and pet stroller

Abstract

The folding frame comprises a connecting structure, a first frame body and a second frame body, the first frame body comprises a first side frame, a first bottom frame and a first side rod, and the connecting structure comprises a connecting rod, a connecting base and a first supporting piece. The connecting rod is vertically arranged and transversely provided with a vertically-arranged sliding channel in a penetrating mode, a sliding shaft is slidably connected into the sliding channel, the connecting base is arranged at the upper end of the connecting rod, one end of the first bottom frame is hinged to the lower end of the first side frame, the other end of the first bottom frame is hinged to the lower end of the connecting rod, and one end of the first side rod is hinged to the first side frame. The lower end of the first supporting piece is hinged to the first bottom frame, the upper end of the first supporting piece is hinged to the sliding shaft, and the first supporting piece, the connecting rod and the first bottom frame can form a triangular supporting structure. According to the folding frame, rapid unfolding and folding of the bottom frame can be achieved, and the bottom frame is good in stability and high in bearing capacity in the unfolding state.

Description

Technical Field

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

[0002] Existing trolleys, such as a utility model patent titled "A Folding Portable Camping Trolley" (publication number: CN221914311U), have a base frame divided into a left half and a right half, which are hinged together. The hinge point is located below the middle of the base frame. A latch is hinged to the left half and arranged above the hinge point. When the base frame is unfolded, it is hooked onto the right half by the latch to keep it unfolded and prevent accidental folding between the left and right halves. However, after the base frame is unfolded, people need to manually hook the latch onto the right half, and when folding, people need to manually remove the latch from the right half. The operation is cumbersome and inconvenient. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies by providing a folding frame and a pet stroller. The folding frame enables the rapid unfolding and folding of the base, and the base has good stability and strong load-bearing capacity when unfolded.

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

[0005] A folding bicycle frame includes a connecting structure, a first frame rotatably connected to the connecting structure, and a second frame rotatably connected to the connecting structure. The first frame includes a first side frame, a first base frame, and a first side rod. The connecting structure includes a connecting rod, a connecting seat, and a first support member. The connecting rod is arranged vertically and has a horizontally extending sliding channel arranged vertically. A sliding shaft is slidably connected within the sliding channel. The connecting seat is located at the upper end of the connecting rod. 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 rotation on the upper side of the first assembly. The other end is hinged to the lower end of the connecting rod via a first hinge member. The first side rod is spaced above the first base frame, with one end of the first side rod hinged to the first side frame 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 through a second hinge member, the second hinge member is spaced apart on the side of the first hinge member close to the first side frame, and 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 frame is unfolded relative to the second frame, and drive the sliding shaft to slide towards the lower end of the sliding channel when the first frame is folded relative to the second frame.

[0006] Preferably, the sliding channel is arranged laterally through the inner and outer sides of the connecting rod along the width direction of the first frame, and the sliding shaft is arranged in the sliding channel along the width direction of the first frame and can slide vertically along the length direction of the sliding channel.

[0007] Preferably, the first base frame includes a first base rod, which is hinged to the inner side of the lower end of the connecting rod via a first hinge member. The lower end of the first support member is hinged to the outer side of the first base rod via a second hinge member, and the upper end is hinged to the inner end of the sliding shaft.

[0008] Preferably, the first support member has a first recess on its lower side, and the first hinge member is arranged in the first recess when the first frame is folded relative to the second frame.

[0009] Preferably, the first support member is configured as an arc-shaped sheet structure with its arc center located on the side of the first support member away from the first side frame, and the first notch is formed by the inner arc surface of the arc-shaped sheet structure.

[0010] Preferably, the second frame includes a second side frame, a second base frame, and a second side rod; the connecting structure further includes a second support member; 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, and the other end is hinged to the lower end of the connecting rod via a third hinge member; the second side rods are spaced apart above the second base frame, and one end of the second side rod is hinged to the second side frame, and the other end is hinged to the connecting seat and is limited to rotating on the lower side of the connecting seat; the lower end of the second support member is hinged to the second base frame via a fourth hinge member, the fourth hinge member is spaced apart on the side of the third hinge member near the second side frame, and the upper end of the second support member is hinged to the outer end of the sliding shaft, so that when the first frame is unfolded relative to the second frame, it can work with the first support member to 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 second base frame; when the first frame is folded relative to the second frame, it works with the first support member to drive the sliding shaft to slide towards the lower end of the sliding channel.

[0011] Preferably, the second base frame includes a second base rod, which is hinged to the outer side of the lower end of the connecting rod via a third hinge, and the lower end of the second support rod is hinged to the inner side of the second base rod via a fourth hinge; the lower side of the second support member is recessed with a second notch, and the third hinge is arranged in the second notch when the first frame is folded relative to the second frame; the second support member is configured as an arc-shaped sheet structure with its arc center arranged on the side of the second support member away from the second side frame, and the second notch is formed by the inner arc surface of the arc-shaped sheet structure.

[0012] Preferably, the first hinge and the third hinge are configured as a single integrated structure; and / or,

[0013] There are two connection structures, which are respectively arranged on both sides of the first frame in the width direction and between the second frame.

[0014] Preferably, it also includes multiple wheel assemblies. The bottom of the first frame and the second frame are provided with multiple mounting structures corresponding to the wheel assemblies. The wheel assemblies are detachably connected to the mounting structures, and the bottom surface of the mounting structures can form a mounting surface that can be placed on the medium surface after each wheel assembly is detached from the mounting structure.

[0015] This utility model also provides a pet stroller, including the above-mentioned folding frame and a cloth cover structure disposed on the folding frame.

[0016] The beneficial effects achieved by this utility model are as follows:

[0017] The folding frame provided by this utility model, in the unfolded state, has a first base frame rotating relative to the first side frame until it is supported and limited above the first assembly, a second base frame rotating relative to the second side frame until it is supported and limited above the second assembly, and a first side rod rotating relative to the connecting seat until it is supported and limited below the connecting seat. The triangular support structure formed by the first support member, the connecting rod, and the first base frame keeps the entire frame in the unfolded state, preventing accidental folding due to rotation of the first base frame relative to the connecting rod. This results in good stability of the entire frame in the unfolded state. Furthermore, the triangular support structure distributes the force on the frame across the connecting structure, the first side rod, the first side frame, and the entire frame, ensuring good stability of the frame. The first side rod, the first side frame, and the entire base frame work together to bear the load of the base frame, resulting in a strong load-bearing capacity. In addition, the lower end of the first support member is hinged to the first base frame via the second hinge member, and the upper end of the first support member is hinged to the sliding shaft. When the first frame is folded relative to the second frame, the first support member drives the sliding shaft to slide towards the lower end of the sliding channel, thereby ensuring that the first base frame can rotate downward relative to the connecting rod for folding. In other words, the first support member can drive the sliding shaft to slide vertically along the sliding channel to change position as the first and second frames fold, eliminating the need for manual operation of the first support member. This allows for the rapid unfolding and folding of the entire base frame, making it convenient to use.

[0018] 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

[0019] 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:

[0020] Figure 1This is a schematic diagram of the structure of a folding frame according to an embodiment of the present invention.

[0021] Figure 2 This is a partial structural diagram of a folding frame according to an embodiment of the present invention. Figure 1 .

[0022] Figure 3 This is a partially exploded view of a folding frame according to an embodiment of the present invention. Figure 1 .

[0023] Figure 4 This is a partial structural diagram of a folding frame in a folded state according to an embodiment of the present invention.

[0024] Figure 5 This is a partial structural diagram of a folding frame according to an embodiment of the present invention. Figure 2 .

[0025] Figure 6 This is a partial structural diagram of a folding frame according to an embodiment of the present invention. Figure 3 .

[0026] Figure 7 This is a partial cross-sectional view of a folding frame according to an embodiment of the present invention.

[0027] Figure 8 This is a structural schematic diagram of the folding frame in a folded state according to an embodiment of the present invention.

[0028] Reference numerals: First base frame 1, First base rod 11, Second base frame 2, Second base rod 21, First side frame 3, First upright 31, Third upright 32, Second side frame 4, Second upright 41, Fourth upright 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 Component 656, button 657, rotating structure 71, docking structure 72, 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 one 1021, connecting part two 1022, connecting part three 1023, first support member 103, first notch 1031, sliding shaft 104, first hinge member 105, second hinge member 106, second support member 107, second notch 1071, third hinge member 108, fourth hinge member 109, folding armrest 200. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] like Figures 1-8As shown in the figure, as an embodiment of the present invention, a folding frame is provided, including a connecting structure 100, a first frame rotatably connected to the connecting structure 100, and a second frame rotatably connected to the connecting structure 100. The first frame includes a first side frame 3, a first base frame 1, and a first side rod 8. 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 horizontally extending sliding channel 1011 arranged vertically. A sliding shaft 104 is slidably connected within the sliding channel 1011. The connecting seat 102 is located at the upper end of the connecting rod 101. 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 rotation on the upper side of the first assembly 61. The other end is hinged to the lower end of the connecting rod 101 via a first hinge member 105. The first side rods 8 are spaced apart above the first base frame 1, with one end of the first side rod 8 hinged to the first side frame 3 and the other end hinged to the connecting seat 102 and limited to rotating under the connecting seat 102. The lower end of the first support member 103 is hinged to the first base frame 1 via the second hinge member 106. The second hinge member 106 is spaced apart on the side of the first hinge member 105 near the first side frame 3. The upper end of the first support member 103 is hinged to the sliding shaft 104, which can drive the sliding shaft 104 to slide to abut against the upper end of the sliding channel 1011 and form a triangular support structure with the connecting rod 101 and the first base frame 1 when the first frame is unfolded relative to the second frame. When the first frame is folded relative to the second frame, the sliding shaft 104 is driven to slide towards the lower end of the sliding channel 1011.In this embodiment of the folding frame, when unfolded, the first base frame 1 rotates relative to the first side frame 3 until it is supported and limited above the first assembly 61, the second base frame 2 rotates relative to the second side frame 4 until it is supported and limited above the second assembly 62, and the first side rod 8 rotates relative to the connecting seat 102 until it is supported and limited below the connecting seat 102. The triangular support structure formed by the first support member 103, the connecting rod 101, and the first base frame 1 keeps the entire frame in the unfolded state, preventing accidental folding due to rotation of the first base frame 1 relative to the connecting rod 101. This results in good stability of the entire frame in the unfolded state. Furthermore, the triangular support structure distributes the force on the frame across the connecting structure 100, the first side rod 8, the first side frame 3, and the entire frame, ensuring good stability of the connecting structure 100 and the first side rod 8. The first side frame 3 and the entire base frame share the load-bearing capacity of the base frame. In addition, the lower end of the first support member 103 is hinged to the first base frame 1 through the second hinge member 106, and the upper end of the first support member 103 is hinged to the sliding shaft 104. When the first frame is folded relative to the second frame, 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 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 and second frames fold. There is no need for people to manually operate the first support member 103, thus enabling the entire base frame to be quickly unfolded and folded, which is convenient to use.

[0035] 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, and the sliding shaft 104 is arranged in the sliding channel 1011 along the width direction of the first frame and can slide vertically along the length direction of the sliding channel 1011.

[0036] like Figures 2-4As shown, 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. 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. The lower side of the first support member 103 is recessed with a first notch 1031. When the first frame 1 is folded relative to the second frame 2, the first hinge 105 is arranged in the first notch 1031 to avoid interference with the folding movement of the first base frame 1 due to the first support member 103 and the first hinge 105 abutting each other during the folding process of the folding frame. 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.

[0037] In some specific embodiments, the second frame includes a second side frame 4, a second base frame 2, and a second side rod 9. The connecting structure 100 also includes a second support member 107. 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 is hinged to the lower end of the connecting rod 101 via a third hinge member 108. The second side rods 9 are spaced apart above the second base frame 2, and one end of the second side rod 9 is hinged to the second side frame 4, and the other end is hinged to the connecting seat 102 and is limited to rotating on the lower side of the connecting seat 102. 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 side frame 4. 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 base frame 4. 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.

[0038] 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. The lower end of the second support rod 107 is hinged to the inner side of the second base rod 21 via a fourth hinge 109. The second support 107 has a second recess 1071 on its lower side. When the first frame 1 is folded relative to the second frame 2, the third hinge 108 is arranged in the second recess 1071 to avoid interference with the folding movement of the second base frame 2 due to the second support 107 and the third hinge 108 abutting each other 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.

[0039] like Figure 3 As shown, 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 can also be configured as independent structures.

[0040] like Figure 5As shown, in some specific embodiments, two connecting structures 100 are provided, and the two connecting structures 100 are respectively arranged on both sides of the first frame in the width direction and between the second frame. The first side frame 3 includes a first upright 31 arranged on the left side of the first base frame 1 and a third upright 32 arranged on the right side of the first base frame 1. The second side frame 4 includes a second upright 41 arranged on the left side of the second base frame 2 and a fourth upright 42 arranged on the right side of the second base frame 2. The first base frame 1 includes a first base rod 11 arranged on its left side and a first base rod 11 arranged on its right side, wherein one end of the left 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, wherein one end of the right first base rod 11 is hinged to the lower end of the third upright 32 through the first assembly 61, and the other end is 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 a second base rod 21 disposed on its left side and a second base rod 21 disposed on its right side. One end of the second base rod 21 on the left side is hinged to the lower end of the second upright 41 via the 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 the third hinge 108. One end of the second base rod 21 on the right side is hinged to the lower end of the fourth upright 42 via the 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. The left first side rod 8 is spaced apart 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 right first side rod 8 is spaced apart 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. The left second side rod 9 is spaced apart 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 right second side rod 9 is spaced apart 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.

[0041] like Figure 3As 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.

[0042] like Figure 6 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, the second upright 41, the third upright 42, or the fourth upright 42 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.

[0043] like Figure 1 As shown, in some specific embodiments, a top frame 5 is also included. 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 is detachably connected to the other end of the second top rod 52. The top frame 5 also includes a third top rod 53 horizontally rotatably connected to the first side frame 3 and a fourth top rod 54 horizontally rotatably connected to the second side frame 4. The other end of the third top rod 53 is detachably connected to the other end of the fourth top rod 54.

[0044] like Figure 5As shown, in some specific embodiments, one end of the first push rod 51 is horizontally rotatably connected to the upper end of the first upright 31 via a rotating structure 71; one end of the second push rod 52 is horizontally rotatably connected to the upper end of the second upright 41 via a rotating structure 71; one end of the third push rod 53 is horizontally rotatably connected to the upper end of the third upright 32 via a rotating structure 71; and one end of the fourth push rod 54 is horizontally rotatably connected to the upper end of the fourth upright 42 via a rotating structure 71. The other ends of the first push rod 51 and the second push rod 52 are detachably connected via a docking structure 72, and the other ends of the third push rod 53 and the fourth push rod 54 are detachably connected via a docking structure 72. Figure 8As shown, in this embodiment of the folding frame, when folded, the first top rod 51 and the second top rod 52 can be disassembled from each other via the docking structure 72, the third top rod 53 can be disassembled from the second top rod 52 via the docking structure 72, and the first top rod 51 can be rotated horizontally to the right relative to the first upright 31 via the rotating structure 71, the second top rod 52 can be rotated horizontally to the right relative to the second upright 41 via the rotating structure 71, the third top rod 53 can be rotated horizontally to the left relative to the third upright 32 via the rotating structure 71, and the fourth top rod 54 can be rotated horizontally to the left relative to the fourth upright 42 via the rotating structure 71. This allows the first base frame 1 and the second base frame 2 to be folded together. To achieve the folding of the entire base frame, the first assembly 61 and the second assembly 62 respectively 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, and the third top rod and the fourth top rod 54 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, the first base frame 1 and the second base frame 2 are unfolded together, allowing each of the first bottom rods 11 to support and limit the first bottom rod. On the upper side of assembly 61, each second bottom rod 21 is respectively supported and limited on the upper side of the second assembly 62, and each first side rod 8 and second side rod 9 is respectively supported and limited on the lower side of the connecting seat 102, maintaining the stability of the entire base frame in the unfolded state. The mutual 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. The first top rod 51 is rotated horizontally relative to the first upright rod 31 through the rotating structure 71, and the second top rod 52 is rotated horizontally relative to the second upright rod 41 through the rotating structure 71. The third top rod 53 is rotated horizontally forward relative to the third upright rod 32 via the rotating structure 71, and the fourth top rod 54 is rotated horizontally forward relative to the fourth upright rod 42 via the rotating structure 71. The first top rod 51 and the second top rod 52 are connected to each other via the docking structure 72, and the third top rod 53 and the fourth top rod 54 are connected to each other via the docking structure 72. This maintains the stability of the entire folding frame when it is unfolded, thereby enabling the entire folding frame to be quickly unfolded and used. The operation is simple and convenient, and it can greatly reduce the front and rear space occupied by the top frame 5 after the entire folding frame is folded, making it convenient for packaging, carrying or transportation.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.

[0045] like Figure 1 As shown, in some specific embodiments, multiple wheel assemblies 10 are also included. Multiple mounting structures 65 are provided at the bottom of the first and second frames corresponding to the wheel assemblies 10. The wheel assemblies 10 are detachably connected to the mounting structures 65, and the bottom surface of the mounting structures 65 can form a mounting surface 651 for placement on the ground, car back seat, or other media after each wheel assembly 10 is detached from the mounting structure 65. This allows the folding frame to be used as a stroller frame after the wheel assemblies 10 are installed, and as a frame structure for pet cages or other applications after the wheel assemblies 10 are removed, making it more versatile. In this embodiment, the mounting structures 65 are respectively provided at the lower ends of the first upright 31, second upright 41, third upright 32, and fourth upright 42. In other embodiments, the mounting structures 65 can also be provided at other locations such as the first or second base frame.

[0046] like Figure 7As 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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 folding frame, characterized in that, It includes a connecting structure, a first frame rotatably connected to the connecting structure, and a second frame rotatably connected to the connecting structure, wherein: The first frame includes a first side frame, a first base frame, and a first side rod; The connection 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, and the connecting seat is located at the upper end of the connecting rod. One end of the first base frame is hinged to the lower end of the first side frame via the first assembly and is limited to rotating on the upper side of the first assembly; the other end is hinged to the lower end of the connecting rod via the first hinge. The first side rods are spaced apart above the first base frame, and one end of the first side rod is hinged to the first side frame, and 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 via a second hinge member. The second hinge members are spaced apart on the side of the first hinge member close to the first side frame. The upper end of the first support member is hinged to a sliding shaft. When the first frame is unfolded relative to the second frame, the sliding shaft can be driven 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 frame is folded relative to the second frame, the sliding shaft can be driven to slide towards the lower end of the sliding channel.

2. The folding frame of claim 1, wherein: The sliding channel is arranged laterally through the inner and outer sides of the connecting rod along the width direction of the first frame, and the sliding shaft is arranged in the sliding channel along the width direction of the first frame and can slide vertically along the length direction of the sliding channel.

3. The folding frame of claim 2, wherein: The first base frame includes a first base rod, which is hinged to the inner side of the lower end of the connecting rod via a first hinge member. The lower end of the first support member is hinged to the outer side of the first base rod via a second hinge member, and the upper end is hinged to the inner end of the sliding shaft.

4. The folding frame of claim 3, wherein: The first support member has a first recess on its lower side, and when the first frame is folded relative to the second frame, the first hinge member is arranged in the first recess.

5. The folding frame of claim 4, wherein: The first support member is configured as an arc-shaped sheet structure with its arc center located on the side of the first support member away from the first side frame, and the first notch is formed by the inner arc surface of the arc-shaped sheet structure.

6. The folding frame of any one of claims 2-5, wherein: The second frame includes a second side frame, a second base frame, and a second side rod; The connection structure also includes a second support member; One end of the second base frame is hinged to the lower end of the second side frame via the second assembly and is limited to rotating on the upper side of the second assembly; the other end is hinged to the lower end of the connecting rod via the third hinge. The second side rods are spaced apart above the second base frame, and one end of the second side rod is hinged to the second side frame, while the other end is hinged to the connecting seat and limited to rotating under the connecting seat. The lower end of the second support member is hinged to the second base frame via a fourth hinge member. The fourth hinge member is spaced apart on the side of the third hinge member near the second side frame. The upper end of the second support member is hinged to the outer end of the sliding shaft. When the first frame is unfolded relative to the second frame, it can work with the first support member to 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 second base frame. When the first frame is folded relative to the second frame, it works with the first support member to drive the sliding shaft to slide towards the lower end of the sliding channel.

7. The folding frame of claim 6, wherein: The second base frame includes a second base rod, which is hinged to the outer side of the lower end of the connecting rod via a third hinge, and the lower end of the second support rod is hinged to the inner side of the second base rod via a fourth hinge. The second support member has a second recess on its lower side, and the third hinge member is arranged in the second recess when the first frame is folded relative to the second frame. The second support member is configured as an arc-shaped sheet structure with the arc center arranged on the side of the second support member away from the second side frame, and the second notch is formed by the inner arc surface of the arc-shaped sheet structure.

8. The folding frame of claim 7, wherein: The first hinge and the third hinge are configured as a single unit; and / or, There are two connection structures, which are respectively arranged on both sides of the first frame in the width direction and between the second frame.

9. The folding frame of any one of claims 1-5, wherein: It also includes multiple wheel assemblies. The bottom of the first frame and the second frame are provided with multiple mounting structures corresponding to the wheel assemblies. The wheel assemblies are detachably connected to the mounting structures, and the bottom surface of the mounting structures can form a mounting surface that can be placed on the medium surface after each 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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