Folding pet cart

Through the design of the locking mechanism and linkage mechanism, the fast one-click folding of the folding pet cart is achieved, solving the complex operation of the existing folding pet cart and improving the user experience.

CN223045777UActive Publication Date: 2025-07-01KUNSHAN LITTLE DINASAUR CHILD PROD
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Patent Information

Application Number
CN202422455184.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-07-01
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The existing folding pet cart has a complex structure and pet owners need multiple operations to complete the fold, which leads to inconvenience in folding.

Method used

The locking mechanism is used to control the rotation of the push rod and the frame, and combined with the linkage mechanism, a linkage connection is formed between the push rod, wheel frame and mounting parts, and a quick fold is achieved through one-click operation.

Benefits of technology

It realizes the fast and convenient folding of folding pet carts, improving the user experience and operation efficiency of pet owners.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pet supplies, and discloses a folding pet cart which comprises a push rod, a cart frame, a locking mechanism, an installation piece and a linkage mechanism, the push rod and the cart frame are rotationally connected, and the locking mechanism enables the push rod and the cart frame to be selectively locked and stopped. The linkage mechanism comprises a connecting sleeve, a first connecting piece, a first connecting rod, a second connecting rod and a third connecting rod, the connecting sleeve movably sleeves the push rod and comprises a first connecting point and a second connecting point, and the first connecting piece is rotationally arranged on the rear wheel frame and comprises a first connecting edge and a second connecting edge which are intersected; one end of the second connecting rod is rotationally connected with the second connecting edge, the other end of the second connecting rod is rotationally connected with the front wheel frame, one end of the third connecting rod is rotationally connected with one end, close to the frame, of the push rod, the other end of the third connecting rod is rotationally connected with the mounting part, and the second connecting point is rotationally connected with the mounting part. The folding pet cart is simple in structure, convenient to fold and operate and capable of being quickly folded.
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Description

Technical Field

[0001] The utility model relates to the technical field of pet supplies, in particular to a foldable pet stroller. Background Art

[0002] With the improvement of living standards, more and more people choose to take their pets with them when traveling, such as taking pets out shopping, walking or dining, and enjoying the fun of going out together. The travel of pets has also become diversified. In addition to using a leash for pets, pet owners can also choose travel methods such as pet backpacks and pet strollers. Existing pet backpacks can only accommodate small-sized pets. For larger-sized pets, most pet owners will choose to use a pet stroller to take their pets out. To facilitate the storage of pet strollers, foldable pet strollers have emerged on the market. However, the existing foldable pet strollers have a complex structure, and pet owners need to operate multiple parts of the foldable pet stroller to complete the folding work. Therefore, the existing foldable pet strollers are inconvenient to fold, and pet owners cannot complete the folding quickly.

[0003] Therefore, there is an urgent need for a foldable pet stroller to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a foldable pet stroller, which has a simple structure, is convenient to fold, can be folded with one key, and pet owners can complete the folding quickly.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A foldable pet stroller, comprising:

[0007] A push rod, a frame, a locking mechanism and a mounting member. The push rod is rotatably connected to the frame, and the locking mechanism can selectively lock and stop the push rod and the frame; the frame includes a front wheel frame and a rear wheel frame that are rotatably connected to each other.

[0008] A linkage mechanism, including a connecting sleeve, a first connecting member, a first connecting rod, a second connecting rod and a third connecting rod. The connecting sleeve is movably sleeved on the push rod, the first connecting member is rotatably arranged on the rear wheel frame, the first connecting member includes an intersecting first connecting edge and a second connecting edge, the connecting sleeve includes a first connection point and a second connection point, the second connection point is rotatably connected to the mounting member, one end of the first connecting rod is rotatably connected to the first connection point, the other end of the first connecting rod is fixed to the first connecting edge, one end of the second connecting rod is rotatably connected to the second connecting edge, the other end of the second connecting rod is rotatably connected to the front wheel frame, one end of the third connecting rod is rotatably connected to the end of the push rod close to the frame, and the other end is rotatably connected to the mounting member. The second connection point is rotatably connected to the mounting member.

[0009] As a preferred technical solution of the folding pet stroller, the outer periphery of the connecting sleeve is provided with a first lug and a second lug, the first connection point is arranged on the first lug, and the second connection point is arranged on the second lug.

[0010] As a preferred technical solution of the folding pet stroller, the folding pet stroller further includes a lifting member, and the lifting member is arranged on the front wheel frame for lifting the bottom of the seat frame.

[0011] As a preferred technical solution of the folding pet stroller, the lifting member and the front wheel frame can be detachably connected.

[0012] As a preferred technical solution of the folding pet stroller, the push rod includes a handrail and a handle, the handrail is connected to the frame, the handle is connected to the handrail, and the locking mechanism is arranged on the handle.

[0013] As a preferred technical solution of the folding pet stroller, the mounting member includes a retaining ring, a second connecting member and a protection member. The side edge of the retaining ring along the length direction is rotatably connected to the third connecting rod, the second connecting member is placed on the retaining ring, the protection member is connected to the second connecting member, and the protection member is configured to protect the pet.

[0014] As a preferred technical solution of the folding pet stroller, the protection member includes a first half ring and a second half ring that are rotatably connected. A sunshade cloth is connected between the first half ring and the second half ring. Rotating the first half ring or the second half ring can open or close the sunshade cloth.

[0015] As a preferred technical solution of the folding pet stroller, a connecting joint is arranged on the rear wheel frame, and the push rod is rotatably connected to the connecting joint.

[0016] As a preferred technical solution of the folding pet stroller, a fixing member is arranged on the rear wheel frame, and the fixing member is configured to fix the push rod and the frame to each other when the folding pet stroller is folded.

[0017] As a preferred technical solution of the folding pet stroller, the rear wheel frame includes a rear frame, a rear runner and a brake assembly. The rear frame is rotatably connected to the push rod, the rear runner is placed on the rear frame, the brake assembly is connected to the rear runner, and the brake assembly can selectively brake the rear runner.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The folding pet stroller provided by the present utility model controls the relative rotation of the frame and the push rod through a locking mechanism. When the folding pet stroller is unfolded, the push rod and the frame are relatively fixed, the position of the connecting sleeve is fixed, and thus the first connecting piece is relatively fixed to the rear wheel frame. The second connecting edge and the second connecting rod can stably support the front wheel frame and the rear wheel frame, making the overall structure of the folding pet stroller stable when unfolded. When the folding pet stroller needs to be folded, the pet owner only needs to operate the locking mechanism to unlock the push rod and the frame. At this time, under the action of gravity, the push rod will rotate clockwise downward, and the connecting sleeve slides along the end of the push rod away from the connection with the frame, driving the first connecting piece to rotate relative to the rear wheel frame. At this time, the second connecting edge and the second connecting rod can no longer form a support between the front wheel frame and the rear wheel frame, and the front wheel frame rotates relative to the rear wheel frame and approaches it, realizing the folding of the frame. At the same time, as the push rod rotates, the mounting piece approaches the frame along with the push rod, realizing the synchronous folding of the mounting piece and the push rod with the frame. The folding pet stroller forms a linkage connection between the push rod, the front wheel frame, the rear wheel frame, and the mounting piece through a linkage mechanism, making the overall structure of the folding pet stroller simple. At the same time, only by operating the locking mechanism, the folding pet stroller can be folded with one key, enabling the pet owner to complete the folding quickly and conveniently, and improving the usage experience of the pet owner. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the folding pet stroller provided by the present utility model in the unfolded state;

[0021] Figure 2 is a schematic structural diagram of the folding pet stroller provided by the present utility model in the folded state;

[0022] Figure 3 is a schematic structural diagram of the first perspective of the folding pet stroller provided by the present utility model during the unfolding process;

[0023] Figure 4 is a schematic structural diagram of the second perspective of the folding pet stroller provided by the present utility model during the unfolding process;

[0024] Figure 5 is a schematic structural diagram of the third perspective of the folding pet stroller provided by the present utility model during the unfolding process.

[0025] In the figure:

[0026] 1. Push rod; 11. Handrail; 12. Handle;

[0027] 2. Frame; 21. Front wheel frame; 211. Front frame; 212. Front runner; 22. Rear wheel frame; 221. Connecting joint; 222. Rear frame; 223. Rear runner; 224. Brake assembly;

[0028] 3. Locking mechanism;

[0029] 4. Mounting member; 41. Retaining ring; 411. Fixed sleeve; 42. Second connecting member; 43. Protective member; 431. First half ring; 432. Second half ring;

[0030] 5. Linkage mechanism; 51. Connecting sleeve; 511. First lug; 512. Second lug; 52. First connecting member; 521. First connecting edge; 522. Second connecting edge; 53. First connecting rod; 54. Second connecting rod; 55. Third connecting rod;

[0031] 6. Lifting member; 7. Fixing member. Detailed implementation manners

[0032] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the accompanying drawings.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0036] As shown Figures 1 to 5 in the figure, this embodiment provides a folding pet stroller, which includes a push rod 1, a frame 2, a locking mechanism 3, a mounting member 4 and a linkage mechanism 5. The push rod 1 is rotatably connected to the frame 2, and the locking mechanism 3 can selectively lock the push rod 1 and the frame 2, that is, the locking mechanism 3 can control the relative rotation and locking between the push rod 1 and the frame 2. There is a push button on the locking mechanism 3. By pushing the push button, the push rod 1 and the frame 2 can be locked and cannot rotate relative to each other. By pushing the push button back in the reverse direction, the push rod 1 and the frame 2 can rotate relative to each other. Regarding the use of the locking mechanism 3 to control the relative rotation of two components, it belongs to the conventional technical means in the field of folding strollers. The specific principle can refer to the prior art and will not be elaborated here.

[0037] The frame 2 includes a front wheel frame 21 and a rear wheel frame 22 that are rotatably connected to each other. The linkage mechanism 5 includes a connecting sleeve 51, a first connecting member 52, a first connecting rod 53, a second connecting rod 54 and a third connecting rod 55. The connecting sleeve 51 is movably sleeved on the push rod 1, that is, the connecting sleeve 51 can move along the push rod 1. The first connecting member 52 is rotatably arranged on the rear wheel frame 22. The first connecting member 52 includes an intersecting first connecting edge 521 and a second connecting edge 522. The connecting sleeve 51 includes a first connection point and a second connection point. One end of the first connecting rod 53 is rotatably connected to the first connection point, and the other end is fixed to the first connecting edge 521. Thus, when the locking mechanism 3 unlocks the frame 2 and the push rod 1, under the action of gravity, the push rod 1 will rotate clockwise relative to the frame 2 and approach the frame 2. At this time, the connecting sleeve 51 slides along the push rod 1 towards the end away from the frame 2, and drives the first connecting member 52 to rotate clockwise relative to the rear wheel frame 22 under the connection of the first connecting rod 53.

[0038] One end of the second connecting rod 54 is rotatably connected to the second connecting edge 522, and the other end is rotatably connected to the front wheel frame 21. When the folding pet stroller is unfolded, the locking mechanism 3 controls the frame 2 and the push rod 1 to be locked. Therefore, the connecting sleeve 51 and the first connecting rod 53 are in a fixed state, and further the first connecting member 52 and the rear wheel frame 22 are in a relatively fixed state. The first connecting edge 521 and the second connecting edge 522 are fixed. At this time, the second connecting edge 522 and the second connecting rod 54 will firmly support between the front wheel frame 21 and the rear wheel frame 22, ensuring the stability of the overall frame 2 structure when the folding pet stroller is unfolded. When the locking mechanism 3 is operated to unlock the frame 2 and the push rod 1, after the first connecting member 52 rotates clockwise relative to the rear wheel frame 22, the second connecting edge 522 moves as the first connecting member 52 rotates, and the second connecting edge 522 and the second connecting rod 54 can no longer support the front wheel frame 21 and the rear wheel frame 22. Since the front wheel frame 21 and the rear wheel frame 22 are rotatably connected, at this time the front wheel frame 21 will approach the rear wheel frame 22, and at this time the frame 2 is folded.

[0039] The mounting member 4 is placed in the middle area of the frame 2. The mounting member 4 is used to mount the seat frame or the seat pocket to accommodate pets. One end of the third link 55 is rotatably connected to one end of the push rod 1 close to the frame 2, and the other end is rotatably connected to the mounting member 4. At the same time, the second connection point is rotatably connected to the mounting member 4. The push rod 1, the connecting sleeve 51, the mounting member 4 and the third link 55 form a closed triangle. When the push rod 1 is locked with the frame 2, the mounting member 4 can be stably mounted. When the locking mechanism 3 unlocks the push rod 1 from the frame 2, the push rod 1 rotates clockwise under the action of gravity and gradually approaches the frame 2. The mounting member 4 approaches the frame 2 along with the connecting sleeve 51 until the push rod 1 is perpendicular to the ground. At this time, the mounting member 4 is folded. Therefore, during the process of the push rod 1 rotating clockwise relative to the frame 2, the push rod 1 and the frame 2 can be made to approach each other synchronously, the front wheel frame 21 and the rear wheel frame 22 approach each other, and the mounting member 4 approaches the frame 2 along with the movement of the push rod 1. By adjusting the locking mechanism 3, the folding of the pet stroller can be completed with one key.

[0040] For the folding pet stroller provided in this embodiment, the relative rotation between the frame 2 and the push rod 1 is controlled by the locking mechanism 3. When the folding pet stroller is unfolded, the push rod 1 and the frame 2 are relatively fixed, the position of the connecting sleeve 51 is fixed, and thus the first connecting member 52 is relatively fixed to the rear wheel frame 22. The second connecting edge 522 and the second link 54 can stably support the front wheel frame 21 and the rear wheel frame 22, making the overall structure of the folding pet stroller stable when unfolded. When the folding pet stroller needs to be folded, the pet owner only needs to operate the locking mechanism 3 to unlock the push rod 1 from the frame 2. At this time, under the action of gravity, the push rod 1 will rotate clockwise downward, and the connecting sleeve 51 slides along one end away from the connection between the push rod 1 and the frame 2, driving the first connecting member 52 to rotate relative to the rear wheel frame 22. At this time, the second connecting edge 522 and the second link 54 can no longer form a support between the front wheel frame 21 and the rear wheel frame 22, and the front wheel frame 21 rotates relative to the rear wheel frame 22 and approaches it, realizing the folding of the frame 2. At the same time, as the push rod 1 rotates, the mounting member 4 approaches the frame 2 along with the push rod 1, realizing the synchronous folding of the mounting member 4 and the push rod 1 with the frame 2. The folding pet stroller forms a linkage connection between the push rod 1, the front wheel frame 21, the rear wheel frame 22 and the mounting member 4 through the linkage mechanism 5, making the overall structure of the folding pet stroller simple. At the same time, only by operating the locking mechanism 3, the folding pet stroller can be folded with one key, enabling the pet owner to complete the folding quickly and conveniently, and improving the usage experience of the pet owner.

[0041] In this embodiment, the outer periphery of the connecting sleeve 51 is provided with a first lug 511 and a second lug 512, and the first connection point is provided on the first lug 511. Specifically, the first lug 511 is provided with a first mounting hole, wherein the first mounting hole is the first connection point. The second connection point is provided on the second lug 512. Specifically, the second lug 512 is provided with a second mounting hole, wherein the second mounting hole is the second connection point.

[0042] In this embodiment, the front wheel frame 21 includes a front frame 211 and a front rotating wheel 212 .

[0043] like Figures 3 to 5 As shown in , in this embodiment, the foldable pet stroller further includes a lifting member 6 for lifting the bottom of the seat frame. By lifting the bottom of the seat frame by the lifting member 6, the pet can feel more secure in the seat frame. The lifting member 6 is arranged on the front wheel frame 21, which can make the overall layout of the foldable pet stroller more reasonable. Preferably, the lifting member 6 can be detachably arranged on the front wheel frame 21, so the pet owner can choose whether to install the lifting member 6 according to the size and weight of his pet, thereby improving the flexibility of the foldable pet stroller and further improving the user experience of the pet owner.

[0044] In this embodiment, the push rod 1 includes a handrail 11 and a handle 12, wherein the handrail 11 is connected to the frame 2, and the handle 12 is connected to the handrail 11, so that it is more convenient to push the foldable pet stroller. The locking mechanism 3 is arranged on the handle 12, and when the pet owner needs to fold the pet stroller, the locking mechanism 3 can be operated without bending over, so that the folding of the foldable pet stroller can be completed quickly with one click. Preferably, the handrail 11 is a telescopic structure, and the length of the handrail 11 can be adjusted according to the height of the pet owner, so that the pet owner can push the foldable pet stroller with less effort, further improving the use experience of the foldable pet stroller.

[0045] Exemplarily, the mounting member 4 includes a retaining ring 41, a second connecting member 42 and a protective member 43. The side of the retaining ring 41 along the length direction is rotatably connected to the third connecting rod 55. A first assembly member is provided on two opposite sides of the retaining ring 41 along the length direction. The first assembly member is used to assemble with the seat pocket or the seat frame. The seat pocket and the seat frame are both accessories of the folding pet stroller. The seat pocket or the seat frame is provided with a second assembly member. The first assembly member and the second assembly member cooperate with each other to realize the installation of the seat pocket or the seat frame with the retaining ring 41. The first assembly member has a buckle, and the second assembly member has a slot, and the two are mutually clamped. Alternatively, the first assembly member may have a first adhesive patch, and the second assembly member may have a second adhesive patch, and the two are mutually bonded.

[0046] In this embodiment, regarding the rotational connection between the third link 55 and the mounting member 4, a fixing sleeve 411 is provided on the retaining ring 41, the fixing sleeve 411 is provided with a lug, and the third link 55 is rotationally connected to the lug.

[0047] The second connecting member 42 is arranged on the retaining ring 41, the protection member 43 is connected to the second connecting member 42, and the protection member 43 is configured to protect the pet. Exemplarily, the protection member 43 includes a first half-ring 431 and a second half-ring 432 which are rotationally connected, wherein the second connecting member 42 is connected to the connecting pins of the first half-ring 431 and the second half-ring 432. Meanwhile, a sunshade cloth is provided between the first half-ring 431 and the second half-ring 432. When the sunshade cloth is fully unfolded, the first half-ring 431 and the second half-ring 432 are on the same horizontal plane. As the pet owner rotates the first half-ring 431 or the second half-ring 432, the sunshade cloth can be opened or closed. When the sun is strong, the pet owner can open the sunshade cloth to protect the pet from the sun. Or when the pet is resting, the sunshade cloth can be opened to provide a comfortable environment for the pet.

[0048] Preferably, the protection member 43 and the second connecting member 42 can be detachably connected, so that the pet owner can selectively install the protection member 43 according to the usage requirements. Specifically, a first mounting hole is provided on the second connecting member 42, and the first mounting hole is provided with an internal thread. An external thread is provided on the connecting pin. A first through hole is provided on the first half-ring 431, and a second through hole is provided on the second half-ring 432. During installation, the openings of the first half-ring 431 and the second half-ring 432 face one side, the first through hole and the second through hole are made to face each other, and then the relatively positioned first through hole and second through hole are made to face the first mounting hole. After the connecting pin passes through the first through hole and the second through hole in sequence, the external thread and the internal thread are screwed together with each other, that is, by screwing the connecting pin, the protection member 43 can be installed or disassembled. Preferably, a protective sleeve is installed at one end of the connecting pin extending out of the first through hole and the second through hole to prevent the first half-ring 431 and the second half-ring 432 from falling off the connecting pin during rotation. The connecting pin can be selected as a bolt.

[0049] In this embodiment, a connecting joint 221 is provided on the rear wheel frame 22, and the push rod 1 is rotationally connected to the connecting joint 221. In this way, the connection between the push rod 1 and the frame 2 can be strengthened. The stability of the connection between the push rod 1 and the frame 2 affects the stability of the folded pet stroller after unfolding, and also affects the folding times of the folded pet stroller. Therefore, by providing the connecting joint 221, not only can the unfolded folded pet stroller be more stable, but also the service life of the folded pet stroller can be improved.

[0050] In this embodiment, a fixing member 7 is provided on the rear wheel frame 22 and configured to fix the push rod 1 and the rear wheel frame 22 to each other when the folding pet stroller is in a folded state. Exemplarily, a protruding portion may be provided on the connecting sleeve 51, and the fixing member 7 may be provided near the rear runner 223. An opening is provided in the fixing member 7. When the folding pet stroller is folded, the protruding portion approaches the fixing member 7 and finally is clamped in the opening, so as to fix the push rod 1 and the rear wheel frame 22. Alternatively, the fixing member 7 is a fixing strap. Along the length direction of the fixing strap, two spaced small-sized magic tapes and two spaced large-sized magic tapes are sequentially provided. The two spaced small-sized magic tapes are used to enable the fixing strap to be fixed on the rear wheel frame 22. When the folding pet stroller is folded, the area of the fixing strap that does not fit the rear wheel frame 22 bypasses the push rod 1, and then the two spaced large magic tapes are adhered to each other, thus fixing the push rod 1 and the rear wheel frame 22 to each other, preventing the folded pet stroller from shaking significantly when passing through bumpy sections during transportation, and further improving the service life of the folding pet stroller.

[0051] Exemplarily, the rear wheel frame 22 includes a rear frame 222, a rear runner 223 and a brake assembly 224. The rear frame 222 is rotatably connected to the push rod 1. The rear runner 223 is placed on the rear frame 222. The brake assembly 224 is connected to the rear runner 223. The brake assembly 224 can selectively brake the rear runner 223 to lock the rear runner 223, and the brake assembly 224 further improves the safety of using the folding pet stroller. Among them, the brake assembly 224 is a conventional technical means in the field of baby strollers and medical trolleys. Regarding the connection manner and control principle between the brake assembly 224 and the rear runner 223, reference may be made to the prior art and no further elaboration will be made here.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A foldable pet stroller, characterized in that: include: A push rod (1), a vehicle frame (2), a locking mechanism (3) and a mounting member (4), wherein the push rod (1) is rotatably connected to the vehicle frame (2), and the locking mechanism (3) can selectively lock the push rod (1) and the vehicle frame (2); the vehicle frame (2) comprises a front wheel frame (21) and a rear wheel frame (22) which are rotatably connected to each other; The linkage mechanism (5) comprises a connecting sleeve (51), a first connecting member (52), a first connecting rod (53), a second connecting rod (54) and a third connecting rod (55), wherein the connecting sleeve (51) is movably mounted on the push rod (1), the first connecting member (52) is rotatably mounted on the rear wheel frame (22), the first connecting member (52) comprises a first connecting edge (521) and a second connecting edge (522) intersecting each other, the connecting sleeve (51) comprises a first connecting point and a second connecting point, one end of the first connecting rod (53) is connected to the push rod (1), and the second connecting member (52) is connected to the rear wheel frame (22). The first connection point is rotationally connected, the other end of the first connecting rod (53) is fixed to the first connecting edge (521), one end of the second connecting rod (54) is rotationally connected to the second connecting edge (522), the other end of the second connecting rod (54) is rotationally connected to the front wheel frame (21), one end of the third connecting rod (55) is rotationally connected to one end of the push rod (1) close to the frame (2), and the other end is rotationally connected to the mounting member (4), and the second connection point is rotationally connected to the mounting member (4).

2. The foldable pet stroller according to claim 1, characterized in that: The outer periphery of the connecting sleeve (51) is provided with a first lug (511) and a second lug (512); the first connection point is arranged on the first lug (511), and the second connection point is arranged on the second lug (512).

3. The foldable pet stroller according to claim 1, characterized in that: The foldable pet stroller further comprises a lifting member (6), wherein the lifting member (6) is arranged on the front wheel frame (21) and is used for lifting the bottom of the seat frame.

4. The foldable pet stroller according to claim 3, characterized in that: The lifting member (6) is detachably connected to the front wheel frame (21).

5. The foldable pet stroller according to claim 1, characterized in that: The push rod (1) comprises a handrail (11) and a handle (12); the handrail (11) is connected to the vehicle frame (2); the handle (12) is connected to the handrail (11); and the locking mechanism (3) is arranged on the handle (12).

6. The foldable pet stroller according to claim 1, characterized in that: The mounting member (4) comprises a retaining ring (41), a second connecting member (42) and a protective member (43); the retaining ring (41) is rotatably connected to the third connecting rod (55) along the side edge in the length direction; the second connecting member (42) is placed on the retaining ring (41); the protective member (43) is connected to the second connecting member (42); and the protective member (43) is configured to protect a pet.

7. The foldable pet stroller according to claim 6, characterized in that: The protective member (43) comprises a first half circle (431) and a second half circle (432) which are rotatably connected, a sunshade cloth is connected between the first half circle (431) and the second half circle (432), and the sunshade cloth can be opened or closed by rotating the first half circle (431) or the second half circle (432).

8. The foldable pet stroller according to any one of claims 1 to 7, characterized in that: The rear wheel frame (22) is provided with a connection joint (221), and the push rod (1) is rotationally connected to the connection joint (221).

9. The foldable pet stroller according to any one of claims 1 to 7, characterized in that: The rear wheel frame (22) is provided with a fixing member (7), and the fixing member (7) is configured to fix the push rod (1) and the frame (2) to each other when the foldable pet stroller is folded.

10. The foldable pet stroller according to any one of claims 1 to 7, characterized in that: The rear wheel frame (22) comprises a rear frame (222), a rear rotating wheel (223) and a brake assembly (224); the rear frame (222) is rotatably connected to the push rod (1); the rear rotating wheel (223) is placed on the rear frame (222); the brake assembly (224) is connected to the rear rotating wheel (223); and the brake assembly (224) can selectively brake the rear rotating wheel (223).