A collapsible multi-layer pet playpen

Abstract

The utility model relates to pet activity cage related technical field, especially a kind of detachable multi-layer pet activity cage, including bottom layer cage, the bottom of bottom layer cage is equipped with pulley, cage lock is installed at the cage door of bottom layer cage, the top of bottom layer cage is fixedly connected with top plate, the surface of top plate is provided with first installation component, the surface of first installation component is provided with second installation component, the top of second installation component is provided with installation cage. This kind of detachable multi-layer pet activity cage, by first installation component and second installation component cooperation, can according to pet quantity or scene change flexible disassembly upper installation cage and connecting plate, both can build multilayer structure when many pets are raised, can also be split into single layer when single pet is raised to save indoor space, and the component after splitting is portable, adapt to family temporary adjustment and going-out demand, solve the problem that traditional pet cage cannot be split, space utilization is low and is difficult to transport.

Description

Technical Field

[0001] This utility model relates to the field of pet activity cage technology, and in particular to a pet activity cage that can be disassembled into multiple layers. Background Technology

[0002] A pet cage is a specialized device that provides a safe space for pets to move around and live. It typically consists of a frame, enclosure, and cage door. It can be designed as a single-layer or multi-layer cage to meet different pet needs. Some models also have additional functions such as partitioning, mobility, and storage. Its core function is to define an independent activity area for pets in homes, pet stores, and veterinary clinics, preventing them from running around and getting injured or damaging the environment. It also makes it convenient for pet owners to perform daily management tasks such as feeding, cleaning, and grooming. Some products also optimize the structure to improve the comfort and safety of pets. They are suitable for various needs such as temporary isolation, daily feeding, and taking pets out. They are an important tool for balancing the freedom of pets to move around and the convenience of pet management. Traditional pet cages have low space utilization and cannot meet the needs of multiple pets. In addition, they cannot be disassembled, and they take up a lot of space and are inconvenient to carry when keeping a single pet. Therefore, there is a particular need for a pet cage that can be disassembled and has multiple layers.

[0003] Chinese patent CN222284268U, published on January 3, 2025, discloses a multi-layer pet cage. By using a first mounting plate, a second mounting plate, a third mounting plate, a connecting rod, a first handle, a vertical plate, and a movable block, it is possible to allocate pets to different areas as needed. Under normal circumstances, each layer can provide pets with more activity space. However, this multi-layer pet cage, like traditional pet cages, does not have a modular disassembly structure. It is impossible to disassemble the layers according to the decrease in the number of pets or changes in the scene. It can only be used as a whole, resulting in low space utilization. If only a single pet is kept, the extra layers will occupy unnecessary indoor space, and the whole cage is difficult to move. It is not suitable for the needs of families to adjust their living conditions temporarily or when going out. Utility Model Content

[0004] The purpose of this invention is to provide a pet activity cage that can be disassembled into multiple layers, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer detachable pet activity cage, including a bottom cage, a bottom pulley installed at the bottom of the bottom cage, a cage lock installed at the cage door of the bottom cage, a top plate fixedly connected to the top of the bottom cage, a first mounting component provided on the surface of the top plate, a second mounting component provided on the surface of the first mounting component, and a mounting cage provided on the top of the second mounting component.

[0006] The second mounting component includes a base plate disposed on the upper surface of the first mounting component. A mounting cage is fixedly connected to the top of the base plate, and a second positioning strip is fixedly connected to the bottom of the base plate. A second positioning groove is provided on the surface of the first mounting component, and the second positioning strip is engaged with the second positioning groove. A fixing rod is connected to the inside of the side of the base plate, and a telescopic rotation groove is provided inside the fixing rod. A limit plate is movably connected inside the telescopic rotation groove. A pull rod is connected to the surface of the limit plate extending to the outer end of the fixing rod. A return spring is connected to the outer side of the pull rod, and an L-shaped retaining plate is connected to the outer end of the pull rod. A retaining groove is provided on the surface of the first mounting component, and a side storage groove is provided on the side of the base plate.

[0007] Preferably, multiple identical sets of pulleys are provided at the bottom of the bottom cage, and are symmetrically distributed at the four corners of the bottom of the bottom cage with respect to the central axis of the bottom cage.

[0008] Preferably, the first mounting assembly includes a connecting plate, which is mounted on the upper surface of the top plate. A first positioning strip is fixedly connected to the bottom of the connecting plate. A first positioning groove is formed on the upper surface of the top plate. The first positioning strip is engaged with the first positioning groove. A positioning hole is formed on the side of the top plate. A tension spring is connected to the outer side of the positioning hole. A pull block is connected to the outer end of the tension spring. A positioning rod is connected to the inner end of the pull block. A locking hole is formed on the side of the first positioning strip. The bottom plate is mounted above the connecting plate. A second positioning groove is formed on the upper surface of the connecting plate. The locking groove is formed on the side of the connecting plate.

[0009] Preferably, two sets of the first positioning strips are symmetrically arranged at the bottom of the connecting plate, and the two sets of first positioning strips are respectively engaged with the two sets of first positioning grooves on the surface of the top plate.

[0010] Preferably, the pull block and the positioning rod cooperate to form a telescopic structure, and the outer wall size of the positioning rod matches the inner wall size of the card hole.

[0011] Preferably, the base plate is installed above the first mounting assembly via a second positioning strip and a second positioning groove, and the outer wall dimension of the second positioning strip is closely matched with the inner wall dimension of the second positioning groove.

[0012] Preferably, the pull rod slides inside the fixed rod via a telescopic rotating groove through a limiting plate, and the outer wall dimension of the bottom side of the L-shaped card plate matches the inner wall dimension of the card groove and the side storage groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This multi-layer detachable pet cage, through the cooperation of the first and second installation components, allows for flexible disassembly of the upper installation cage and connecting plate according to the number of pets or changes in the scene. It can be built into a multi-layer structure when raising multiple pets, and can be disassembled into a single layer when raising a single pet to save indoor space. Moreover, the disassembled parts are lightweight and easy to move, which is suitable for temporary adjustments and travel needs of families. It solves the problems of traditional pet cages that cannot be disassembled, have low space utilization, and are difficult to move. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first mounting component of this utility model;

[0016] Figure 3 This is a schematic diagram of the second mounting component structure of this utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Bottom cage; 2. Pulley; 3. Cage lock; 4. Top plate; 5. First mounting assembly; 501. Connecting plate; 502. First positioning strip; 503. First positioning groove; 504. Positioning hole; 505. Tension spring; 506. Pull block; 507. Positioning rod; 508. Locking hole; 6. Second mounting assembly; 601. Bottom plate; 602. Second positioning strip; 603. Second positioning groove; 604. Fixing rod; 605. Telescopic rotation groove; 606. Limiting plate; 607. Pull rod; 608. Return spring; 609. L-shaped locking plate; 610. Locking groove; 611. Side storage groove; 7. Mounting cage. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4This utility model provides a technical solution: a pet activity cage that can be detached into multiple layers, including a bottom cage 1, a pulley 2 installed at the bottom of the bottom cage 1, a cage lock 3 installed at the cage door of the bottom cage 1, a top plate 4 fixedly connected to the top of the bottom cage 1, a first mounting component 5 provided on the surface of the top plate 4, a second mounting component 6 provided on the surface of the first mounting component 5, and a mounting cage 7 provided on the top of the second mounting component 6.

[0021] The second mounting assembly 6 includes a base plate 601, which is disposed on the upper surface of the first mounting assembly 5. A mounting cage 7 is fixedly connected to the top of the base plate 601, and a second positioning strip 602 is fixedly connected to the bottom of the base plate 601. A second positioning groove 603 is provided on the surface of the first mounting assembly 5, and the second positioning strip 602 engages with the second positioning groove 603. A fixing rod 604 is connected to the inside of the side of the base plate 601. A telescopic rotation groove 605 is provided inside the fixing rod 604, and a limit plate 606 is movably connected inside the telescopic rotation groove 605. A pull rod 607 is connected to the surface of the limit plate 606 extending to the outer end of the fixing rod 604. A return spring 608 is connected to the outer side of the pull rod 607, and an L-shaped... The first mounting component 5 has a slot 610 on its surface and a side storage groove 611 on its side. When the mounting cage 7 needs to be assembled to the first mounting component 5 using the second mounting component 6, the second positioning strip 602 at the bottom of the base plate 601 is aligned with the second positioning groove 603 on the surface of the first mounting component 5. The base plate 601 is then slowly pressed downwards until the second positioning strip 602 is fully embedded in the second positioning groove 603. At this point, the base plate 601 is in contact with the surface of the first mounting component 5. The precise fit between the positioning strip and the positioning groove restricts the horizontal displacement of the base plate 601, providing a stable reference for subsequent locking operations and preventing the base plate 601 from shifting when adjusting the L-shaped clamp 609. 1. After offsetting, a locking operation is performed. In the initial state, the L-shaped locking plate 609 is stored in the storage groove 611 on the side of the base plate 601. The return spring 608 is kept compressed because the pull rod 607 is in the contracted state. At this time, the L-shaped locking plate 609 is pulled outward. The L-shaped locking plate 609 drives the pull rod 607 to move outward along the axis of the fixed rod 604. The pull rod 607 simultaneously drives the limiting plate 606 to slide in the telescopic rotation groove 605. As the pull rod 607 extends, the compression degree of the return spring 608 gradually decreases until the L-shaped locking plate 609 is completely pulled out of the side storage groove 611 and released from the constraint of the storage groove. Then, the pulled-out L-shaped locking plate 609 is rotated 90 degrees around the axis of the pull rod 607. Since the limiting plate 606 and the telescopic rotation groove 605 are movable, Next, during the rotation, the limiting plate 606 rotates synchronously with the pull rod 607, and since there is no rotational obstruction on the inner wall of the telescopic rotation groove 605, a 90-degree rotation can be smoothly completed. After rotation, the L-shaped locking plate 609 is released. At this time, the return spring 608 loses its external force constraint and, under its own elastic return force, pushes the pull rod 607 to move axially along the fixed rod 604 towards the first mounting component 5. The pull rod 607 drives the L-shaped locking plate 609 to move synchronously until the L-shaped locking plate 609 is completely locked into the slot 610 on the surface of the first mounting component 5, completing the locking and fixing of the base plate 601 and the first mounting component 5. At this time, the limiting plate 606 is tightly attached to the groove wall in the telescopic rotation groove 605, which not only restricts the radial sway of the pull rod 607 but also prevents the L-shaped locking plate 609 from tilting in the slot 610.To prevent the pull rod 607 from overextending and detaching, the mounting cage 7 on top of the base plate 601 is securely assembled with the base plate 601 and can be used for pet movement. If disassembly is required, pull the L-shaped locking plate 609 outwards again to overcome the spring force of the return spring 608 and disengage it from the locking slot 610. Then, rotate the L-shaped locking plate 609 90 degrees in the opposite direction and push the pull rod 607 to retract the L-shaped locking plate 609 back into the side storage slot 611. Finally, lift the base plate 601 upwards to disengage the second positioning strip 602 from the second positioning slot 603, thus completing the disassembly. The entire process balances assembly stability with ease of disassembly, adapting to the modular adjustment needs of multi-layer pet cages.

[0022] Furthermore, multiple sets of pulleys 2 are installed at the bottom of the bottom cage 1, and are symmetrically distributed at the four corners of the bottom of the bottom cage 1 with respect to the central axis of the bottom cage 1. Through the installation of pulleys 2, the weight of the bottom cage 1 and the stacked multi-layer cages can be evenly distributed to each set of pulleys 2 by means of the symmetrical distribution at the four corners, avoiding damage caused by excessive force on a single set of pulleys 2. At the same time, the symmetrical distribution can ensure the balance of force when the cage moves, preventing tilting or jamming due to the shift of the center of gravity. Even if there are pets or supplies in the cage, the cage can be easily pushed to move in any direction, solving the problem of the difficulty of moving traditional pet cages.

[0023] Furthermore, the first mounting assembly 5 includes a connecting plate 501, which is mounted on the upper surface of the top plate 4. A first positioning strip 502 is fixedly connected to the bottom of the connecting plate 501. A first positioning groove 503 is formed on the upper surface of the top plate 4, and the first positioning strip 502 is engaged with the first positioning groove 503. A positioning hole 504 is formed on the side of the top plate 4, and a tension spring 505 is connected to the outer side of the positioning hole 504. A pull block 506 is connected to the outer end of the tension spring 505, and a positioning rod 507 is connected to the inner end of the pull block 506. A locking hole 508 is formed on the side of the first positioning strip 502. A bottom plate 601 is mounted above the connecting plate 501, and a second positioning groove 603 is formed on the upper surface of the connecting plate 501. The slot 610 is located on the side of the connecting plate 501. Through the setting of the first mounting component 5, it serves as the core structure connecting the top plate 4 of the bottom cage 1 and the upper second mounting component 6. It must first achieve a stable assembly with the top plate 4. Initially, the positioning rod 507 in the positioning hole 504 on the side of the top plate 4 partially extends outward from the positioning hole 504 under the natural tension of the tension spring 505. During installation, the pull block 506 is pulled outward first. The pull block 506 drives the positioning rod 507 to move outward along the axial direction of the positioning hole 504, while simultaneously stretching the tension spring 505 to produce elastic deformation until the positioning rod 507 is completely retracted into the positioning hole 504, avoiding obstruction of the installation of the connecting plate 501. Then, the first mounting component 610 at the bottom of the connecting plate 501 is... Align the positioning strip 502 with the first positioning groove 503 above the top plate 4, and slowly press the connecting plate 501 downwards so that the first positioning strip 502 is fully embedded in the first positioning groove 503. At this time, the lower surface of the connecting plate 501 is tightly attached to the upper surface of the top plate 4. Through the engagement of the first positioning strip 502 and the first positioning groove 503, the lateral and longitudinal displacement of the connecting plate 501 on the surface of the top plate 4 is restricted, completing the initial positioning. Then, release the pull block 506. The tension spring 505 retracts under the action of the elastic restoring force, pulling the pull block 506 and the positioning rod 507 towards the inside of the positioning hole 504 until the positioning rod 507 is precisely inserted into the locking hole 508 on the side of the first positioning strip 502, forming a double fixation to prevent the connecting plate 501 from collapsing due to pressure. If the pet's activity causes vibration or external impact, resulting in loosening or displacement, ensure the stability of the connection between the first mounting component and the top plate 4. After completing the assembly with the top plate 4, the first mounting component 5 provides an assembly base for the second mounting component 6 through the connecting plate 501. The second positioning groove 603 pre-cut on the upper surface of the connecting plate 501 can precisely align with the second positioning strip 602 at the bottom of the bottom plate 601, providing an initial positioning reference for the bottom plate 601. At the same time, the slot 610 cut on the side of the connecting plate 501 can cooperate with the L-shaped locking plate 609 of the second mounting component 6 to lock it in place, so that the bottom plate 601 is firmly installed on the connecting plate 501. This provides a stable intermediate transition structure for the modular splicing of the multi-layer cage, ensuring the layer connection accuracy and stability of the overall cage.

[0024] Furthermore, two sets of first positioning strips 502 are symmetrically arranged at the bottom of the connecting plate 501, and the two sets of first positioning strips 502 respectively engage with the two sets of first positioning grooves 503 on the surface of the top plate 4. Through the arrangement of the first positioning strips 502 and the first positioning grooves 503, the two symmetrically distributed positioning structures can simultaneously restrict the displacement of the connecting plate 501 from both sides of the bottom, preventing the connecting plate 501 from tilting due to unilateral force. At the same time, the one-to-one engagement relationship ensures that the connecting plate 501 and the top plate 4 are precisely aligned during assembly, preventing lateral displacement. This provides a precise position reference for the subsequent insertion of the positioning rod 507 into the card hole 508, ensuring the stability and accuracy of the connection between the first mounting component 5 and the top plate 4.

[0025] Furthermore, the pull block 506 forms a telescopic structure by cooperating with the positioning rod 507 through the tension spring 505. The outer wall size of the positioning rod 507 matches the inner wall size of the locking hole 508. Through the arrangement of the tension spring 505, the positioning rod 507 and the locking hole 508, the elastic restoring force of the tension spring 505 can drive the positioning rod 507 to automatically insert into the locking hole 508 without manual alignment, thus improving the ease of assembly. The matching cooperation between the positioning rod 507 and the locking hole 508 can avoid gaps between the two, prevent the positioning rod 507 from shaking in the locking hole 508, effectively resist the vibration generated by the pet's activities, and prevent the connection between the connecting plate 501 and the top plate 4 from becoming loose.

[0026] Furthermore, the base plate 601 is installed above the first mounting component 5 via the second positioning strip 602 and the second positioning groove 603. The outer wall dimension of the second positioning strip 602 is closely matched with the inner wall dimension of the second positioning groove 603. Through the setting of the second positioning strip 602 and the second positioning groove 603, the closely matched structure can eliminate the assembly gap between the base plate 601 and the first mounting component 5, and prevent the base plate 601 from sliding in the horizontal direction. At the same time, the guiding effect of the second positioning strip 602 and the second positioning groove 603 can guide the base plate 601 to be installed quickly and accurately without repeated position adjustments, laying the foundation for the subsequent engagement of the L-shaped clamping plate 609 and the clamping groove 610, and ensuring the stability of the connection between the second mounting component 6 and the first mounting component 5.

[0027] Furthermore, the pull rod 607 slides inside the fixed rod 604 via the telescopic rotation groove 605 through the limiting plate 606. The outer wall dimension of the bottom side of the L-shaped card plate 609 matches the inner wall dimensions of the card slot 610 and the side storage groove 611. Through the setting of the limiting plate 606, pull rod 607, L-shaped card plate 609, card slot 610 and side storage groove 611, the limiting plate 606 can limit the sliding stroke of the pull rod 607 in the telescopic rotation groove 605, preventing the pull rod 607 from overextending and falling off. At the same time, it allows the pull rod 607 to drive the L-shaped card plate 609 to rotate smoothly. The matching fit between the L-shaped card plate 609 and the card slot 610 can ensure a tight fit and prevent loosening. The matching fit with the side storage groove 611 can allow the L-shaped card plate 609 to be completely stored after disassembly, without being exposed or scratched, taking into account both locking reliability and storage neatness, and improving operation safety and convenience.

[0028] Working Principle: When this detachable multi-layer pet cage is in operation, it first relies on the pulleys 2 symmetrically distributed at the four corners of the bottom of the bottom cage 1 to achieve flexible overall movement. The cage lock 3 at the cage door ensures the safety of the pet. The top plate 4 at the top of the bottom cage 1 provides the installation base for the upper structure. When it is necessary to build a multi-layer cage, the top plate 4 is first connected to the upper structure through the first installation component 5. Pulling the pull block 506 outward causes the positioning rod 507 to retract into the positioning hole 504. The two sets of first positioning strips 502 at the bottom of the connecting plate 501 are aligned with the first positioning groove 503 of the top plate 4 and pressed into place. After releasing the pull block 506, the tension spring 505 drives the positioning rod 507 to insert into the locking hole 508 to form a double fixation, completing the assembly of the first installation component 5. Then, the installation cage 7 is assembled to the connecting plate 501 through the second installation component 6. The second positioning strip 602 at the bottom of the bottom plate 601 is aligned with the second positioning groove of the connecting plate 501. Press and attach the L-shaped locking plate 609 outward to disengage it from the side storage slot 611 and rotate it 90 degrees. After releasing, the return spring 608 pushes the L-shaped locking plate 609 into the slot 610 on the side of the connecting plate 501. The limiting plate 606 restricts the wobbling and falling off of the pull rod 607, thus achieving a stable assembly of the cage 7. If disassembly is required, first pull the L-shaped locking plate 609 out of the slot 610 and rotate it back into the side storage slot 611. Lift the bottom plate 601 to disengage the second positioning strip 602 from the second positioning slot 603. Then pull the pull block 506 to disengage the positioning rod 507 from the locking hole 508. Remove the connecting plate 501 to restore the single-layer structure. The whole process realizes flexible splicing and disassembly of multi-layer cages, taking into account the convenience of movement, assembly stability and safety of use, and adapting to the needs of different pet breeding scenarios. This completes the use process of a pet activity cage that can be disassembled into multiple layers.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer detachable pet cage, comprising a bottom cage (1), characterized in that: The bottom of the bottom cage (1) is equipped with a pulley (2), the cage door of the bottom cage (1) is equipped with a cage lock (3), the top of the bottom cage (1) is fixedly connected with a top plate (4), the surface of the top plate (4) is provided with a first mounting component (5), the surface of the first mounting component (5) is provided with a second mounting component (6), and the top of the second mounting component (6) is provided with a mounting cage (7). The second mounting assembly (6) includes a base plate (601) disposed on the upper surface of the first mounting assembly (5). A mounting cage (7) is fixedly connected to the top of the base plate (601), and a second positioning strip (602) is fixedly connected to the bottom of the base plate (601). A second positioning groove (603) is provided on the surface of the first mounting assembly (5), and the second positioning strip (602) engages with the second positioning groove (603). A fixing rod (604) is connected inside the side of the base plate (601). The interior of (604) is provided with a telescopic rotating groove (605), and a limiting plate (606) is movably connected inside the telescopic rotating groove (605). The surface of the limiting plate (606) extends to the outer end of the fixed rod (604) and is connected to a pull rod (607). A return spring (608) is connected to the outer side of the pull rod (607), and an L-shaped card plate (609) is connected to the outer end of the pull rod (607). The surface of the first mounting component (5) is provided with a card slot (610), and the side of the base plate (601) is provided with a side storage slot (611).

2. The pet activity cage with detachable multiple layers according to claim 1, characterized in that: The pulleys (2) are arranged in multiple identical sets at the bottom of the bottom cage (1), and are symmetrically distributed at the four corners of the bottom of the bottom cage (1) with respect to the central axis of the bottom cage (1).

3. The pet activity cage with detachable multiple layers according to claim 1, characterized in that: The first mounting assembly (5) includes a connecting plate (501), which is mounted on the upper surface of the top plate (4). A first positioning strip (502) is fixedly connected to the bottom of the connecting plate (501). A first positioning groove (503) is provided on the upper surface of the top plate (4). The first positioning strip (502) is engaged with the first positioning groove (503). A positioning hole (504) is provided on the side of the top plate (4). A tension spring (505) is connected to the outside, and a pull block (506) is connected to the outer end of the tension spring (505). A positioning rod (507) is connected to the inner end of the pull block (506). A locking hole (508) is opened on the side of the first positioning strip (502). The base plate (601) is installed above the connecting plate (501). The second positioning groove (603) is opened on the upper surface of the connecting plate (501). The locking groove (610) is opened on the side of the connecting plate (501).

4. A multi-layer detachable pet cage according to claim 3, characterized in that: Two sets of the first positioning strips (502) are symmetrically arranged at the bottom of the connecting plate (501), and the two sets of first positioning strips (502) are respectively engaged with the two sets of first positioning grooves (503) on the surface of the top plate (4).

5. A multi-layer detachable pet cage according to claim 3, characterized in that: The pull block (506) forms a telescopic structure by cooperating with the positioning rod (507) through the tension spring (505), and the outer wall size of the positioning rod (507) matches the inner wall size of the card hole (508).

6. A multi-layer detachable pet cage according to claim 1, characterized in that: The base plate (601) is installed above the first mounting assembly (5) via the second positioning strip (602) and the second positioning groove (603), and the outer wall size of the second positioning strip (602) is closely matched with the inner wall size of the second positioning groove (603).

7. A multi-layer detachable pet cage according to claim 1, characterized in that: The pull rod (607) slides inside the fixed rod (604) via the telescopic rotating groove (605) through the limiting plate (606), and the outer wall size of the bottom side of the L-shaped card plate (609) matches the inner wall size of the card groove (610) and the side storage groove (611).

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