Modular mortise and tenon structure cat climbing frame

Abstract

The utility model discloses a modularized mortise and tenon structure cat climbing frame, including the chassis, the chassis is by the cross connection of multiple supports through mortise and tenon component constitutes, its lower part passes through mortise and tenon inlaying connection cylindrical bottom disc, and the chassis and cylindrical bottom disc jointly constitute the support base, and the upward extension of mortise and tenon component forms the tree -shaped three -dimensional frame connection disc, and the disc is fixed in the end of the frame. The utility model itself is through modularization mortise and tenon design, makes cat climbing frame form, function and height complete self -definition, and the assembly is simple. The tree branch three -dimensional frame makes full use of vertical space. The mechanical advantage of mortise and tenon structure combines counterweight bottom disc, and the structure is stable. Adopt the environmental protection material, and each part can be replaced independently, prolongs the product life, and is more adaptive market demand and has practicality and interesting nature.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, and more specifically, to a modular mortise and tenon structure cat climbing frame. Background Technology

[0002] Cat trees are now an important part of the living and entertainment facilities for pet cats. Their core value lies in satisfying cats' instinctive needs through scratching posts, climbing platforms of varying heights, resting places, and lookout posts. However, existing products generally have limitations. First, their limited functionality and fixed structure can easily lead to boredom for cats, reducing the frequency of use. Second, existing products take up a lot of space, which can be incompatible with small homes. Third, they lack effective environmental interaction and dynamic mechanisms, failing to satisfy cats' curiosity and biological instincts. These issues affect the practicality of the products and cats' acceptance.

[0003] To address these issues, the industry has made numerous attempts. For example, a utility model patent application (CN214629030U) discloses a detachable cat tree that uses a combination design of a base, connecting columns, and support plates. The height and shape can be adjusted through modular splicing to improve spatial adaptability to a certain extent. However, it still has drawbacks: the support plates need to be installed in a preset order, and the shape is still limited by the frame after assembly and cannot be flexibly changed. Once assembled, it is still a static device that cannot provide dynamic stimulation for cats. After the novelty wears off, it is easily left idle. Furthermore, the connecting columns are not stable enough and are prone to swaying when cats jump, posing a safety hazard.

[0004] While existing products still use wall-mounted solutions to save space, they also have significant limitations. Once installed, the wall-mounted solution is not fixed and cannot be reversed. Moreover, the use of rigid connectors can permanently damage the wall surface. In addition, its function is limited to static climbing and resting, lacking dynamic interactive elements such as swings and rocking poles, resulting in insufficient entertainment. This may cause cats to lose interest and eventually reduce the product to a mere decoration.

[0005] In summary, while these attempts have made breakthroughs in a single dimension, they have failed to solve the problems of modular products being inherently limited by static constraints and cumbersome reconfiguration, and wall-mounted solutions having issues such as irreversible installation or lack of dynamic functionality. Summary of the Invention

[0006] This utility model aims to provide a modular cat climbing frame. By adopting standardized tenon and mortise joint components, a purely physical interlocking connection method, and a hidden counterweight compartment, a tree-like three-dimensional frame, and a staggered disc design, it effectively solves the problems of static limitations and cumbersome reassembly of traditional cat climbing frames, and provides a new solution for the modular, stable, and personalized development of cat climbing frames.

[0007] To achieve the above objectives, this utility model provides a modular mortise and tenon structure cat climbing frame, including a base frame, which is composed of multiple supports connected by mortise and tenon components, and its lower part is connected to a cylindrical base plate by mortise and tenon fitting.

[0008] The base frame and the cylindrical base together form a support base, and the tree-like three-dimensional frame is connected to the disc by mortise and tenon components extending upwards;

[0009] The disk is fixed to the end of the frame.

[0010] The cat tree consists of multiple modules with standard mortise and tenon joints. The core module includes a vertical connecting rod, a horizontal disc, and rotating connectors at various angles. Adjacent modules are connected via mortise and tenon joints, with each connection point providing a degree of freedom to allow for vertical and horizontal expansion. This design allows the cat tree to be freely adjusted in shape and height, flexibly adapting to different home spaces and the behavioral needs of cats, significantly enhancing the product's adaptability and interactivity.

[0011] As a further preferred embodiment, the mortise and tenon assembly includes a vertical assembly and a curved assembly, wherein the bending angle of the curved assembly is 90°.

[0012] As a further preferred embodiment, both the vertical and curved components are provided with standardized tenons and mortises.

[0013] As a further preferred option, the standardized tenon and mortise are designed with an interference fit, with the outer diameter of the tenon slightly larger than the inner diameter of the mortise, achieving a tight fit through physical compression.

[0014] All the mortise and tenon components use a precisely calculated interference fit to ensure a tight fit after insertion. Combined with the friction of the natural wood itself, this forms a stable structure that far exceeds that of conventional connections.

[0015] As a further preferred embodiment, the disc has a diameter of 40-50cm, rounded edges, and an annular groove on its upper surface; a mortise matching the standardized tenon is provided at the center of its back side, and the mortise at the center is connected to the standardized tenon on the vertical or curved component for docking and fixing.

[0016] As a further preferred embodiment, the number of discs is at least 3 and they are distributed at different heights along the height direction of the cat climbing frame, with a vertical distance of 20-30cm between adjacent discs.

[0017] As a further preferred embodiment, the bottom surface of the cylindrical chassis is provided with a diamond-shaped grid anti-slip pattern, the pattern depth is 0.8-1.2mm, and the pattern spacing is 5-8mm.

[0018] As a further preferred embodiment, the cylindrical chassis has a hidden counterweight compartment inside, which is a cylindrical cavity with an opening at the top.

[0019] The base frame and cylindrical chassis together form the load-bearing foundation of the system. The concealed counterweight compartment inside the chassis can be flexibly increased or decreased according to the overall structural height, ensuring absolute stability and safety for any custom-designed climbing frame.

[0020] As a further preferred embodiment, the mortise and tenon joint between the base frame and the cylindrical base is specifically provided as follows: the bottom end of the support of the base frame is provided with a tenon, and the top end of the cylindrical base is provided with a mortise that matches the tenon.

[0021] As a further preferred option, the cat climbing frame has 40 mortise and tenon components, all of which are physically connected to achieve overall mechanical balance from the base frame to the top disc, effectively dispersing the impact force generated by the cat jumping and climbing, and ensuring excellent load-bearing capacity and durability.

[0022] Compared to existing technologies, this invention, firstly, utilizes a mortise and tenon assembly comprising vertical and curved components. The standardized tenon and mortise joints on the surface provide an interference fit, allowing for complete customization of the cat tree's shape, function, and height. Eliminating the need for metal fasteners, the purely physical interlocking 40-part mortise and tenon structure enables free, flexible, and convenient assembly. Users can freely adjust the structure according to space and their cat's habits, changing the assembly at any time to keep the cat interested. This solves the problem of traditional cat trees having fixed shapes and lacking flexibility.

[0023] Secondly, the core design employs a tree-like, three-dimensional frame, extending upwards through mortise and tenon joints between vertical and curved components. Combined with staggered circular discs, it fully utilizes vertical space, providing cats with a vast, multi-level activity area with minimal floor space. Simultaneously, the inherent mechanical advantages of the mortise and tenon structure evenly distribute stress, and the cylindrical base with a hidden counterweight ensures overall frame stability. Even in complex and tall structures, it guarantees structural stability and load-bearing capacity, preventing tipping and ensuring the safety of both pets and users.

[0024] Finally, the entire system uses environmentally friendly materials such as natural wood, eliminating one-time gluing and nailing. All connections rely on mortise and tenon joints for physical interlocking. When a single part is damaged, it can be replaced independently, extending the overall lifespan of the product, reducing waste, and embodying a green and sustainable design concept. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0026] Figure 1 This invention provides a front view of the overall structure of a modular mortise and tenon structure cat climbing frame in one embodiment of the present invention.

[0027] Figure 2 A top view of the overall structure of the modular tenon and mortise structure cat climbing frame in one embodiment of the present invention is shown;

[0028] Figure 3 The left view of the overall structure of the modular tenon and mortise structure cat climbing frame in one embodiment of this utility model is shown.

[0029] Figure 4 A schematic diagram of the tenon and mortise assembly and the disc is shown in one embodiment of the present invention.

[0030] The label in the attached image is: 1 - Cat tree;

[0031] 2-Disc, 3-Tenon and tenon assembly, 3a-Vertical assembly, 3b-Bent assembly, 4-Base frame, 5-Cylindrical base, 6-Counterweight compartment, 7-Mort, 8-Tenon. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described in detail below to provide a clearer understanding of the purpose, features, and advantages of the invention. It should be understood that the following embodiments are not intended to limit the scope of the invention, but are merely illustrative of the essential spirit of the technical solution of the invention.

[0033] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that the embodiments may be practiced without one or more of these specific details. In other instances, well-known techniques associated with the invention may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0034] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0035] With reference to Figure 1 , Figure 2 and Figure 3 , this embodiment provides a modular mortise-and-tenon structure cat tree 1, comprising a bottom frame 4 composed of 8 solid wood brackets.

[0036] A tenon 8 is machined at the end of each bracket, wherein the tenon 8 at one end is arranged on the side surface of the bracket, a mortise 7 is provided at the tenon 8 close to the positive end, the inner wall of the mortise 7 is finely polished without burrs or protrusions, ensuring accurate fitting with the tenon 8 of other components.

[0037] The 8 brackets are connected in a "rice-shaped" cross form through the mortise-and-tenon structure, and the end tenon 8 of each bracket is embedded into the mortise of a special vertical component to form a "rice-shaped" net-like support structure.

[0038] At the center of the bottom frame 4, that is, the intersection of the 8 brackets and the fitting position with the mortise 7 of the vertical component 3a, the mortise 7 on each bracket near the center of the bottom frame 4 can be accurately adapted to the standardized tenon 8 at one end of the other vertical component 3a, so as to realize the connection between the bottom frame 4 and the frame main body.

[0039] The side tenons 8 of each bracket far away from the center correspond one-to-one to 8 pre-arranged mortises at the top end of the cylindrical base plate 5, and the stable connection between the bottom frame 4 and the base plates 5 is realized through mortise-and-tenon fitting, which together form a support base.

[0040] Wherein, the cylindrical base plates 5 are made of solid wood boards, there are 8 cylindrical base plates 5 adapted to the bottom frame 4, rhombic staggered anti-slip textures are integrally formed on the bottom surface, and the textures cover the entire bottom surface of the base plate 5. A hidden counterweight compartment 6 is arranged inside each base plate 5, the counterweight compartment 6 is cylindrical, a mortise-and-tenon structure sealing cover is provided at the top opening, and a tenon adapted to the compartment opening mortise is arranged on the edge of the cover plate.

[0041] In combination with Figure 4 , the present invention further comprises mortise-and-tenon components 3 for connecting various parts and a circular plate 2 providing an activity area for cats, the mortise-and-tenon components 3 comprise vertical components 3a and curved components 3b, both are made of solid wood materials with a circular cross-section, one end of each of the two components is provided with a standardized tenon 8, and the other end is provided with a mortise 7.

[0042] The vertical components 3a have three length specifications, which are 60 cm, 40 cm and 30 cm respectively, allowing users to flexibly adapt to the spatial height differences of different families and the climbing habits of cats, and enabling users to freely combine and build a scattered branch-shaped three-dimensional frame with different heights.

[0043] The curved component 3b has a 90° bend structure and can be flexibly connected with the vertical component 3a or other curved components 3b, allowing the cat climbing frame 1 to extend in multiple directions. This meets the user's needs to customize the shape according to the home space layout and the cat's activity preferences. The bend is integrally molded to ensure structural strength.

[0044] The disc 2 is made of solid wood, with a diameter of 45cm and rounded edges with a radius of 5cm to prevent the cat from bumping or scratching it during its activities or during the user's custom assembly. The upper surface of the disc 2 remains flat and smooth.

[0045] A mortise 7 is formed at the center of the back of the disc 2 along the axial direction, which fits the tenon 8 at one end of the vertical component 3a or the curved component 3b. The inner wall of the mortise 7 is finely polished and free of burrs. A total of 8 discs 2 are fixedly connected to the end of the overall frame by mortise and tenon components 3, and are distributed at different heights along the height of the frame. The vertical distance between adjacent discs 2 is 25cm, forming a three-layer movable platform of upper, middle and lower.

[0046] The entire cat climbing frame 1 has 40 mortise and tenon structures, which are distributed at the connection between the vertical component 3a and the curved component 3b, the connection between the vertical component 3a or the curved component 3b and the disc 2, the connection between the vertical component 3a and the base frame 4, the cross connection of the base frame 4 brackets, the connection between the base frame 4 and the base 5, and the extension joints evenly distributed on each component.

[0047] All tenons 8 and mortises 7 are interference fit. The outer diameter of tenon 8 is 0.1cm larger than the inner diameter of mortises 7. During assembly, they fit tightly through physical compression. The entire cat climbing frame 1 does not require any metal fasteners and relies solely on physical fitting to form a stable and sturdy whole.

[0048] During assembly, first take out 8 base frame supports, and insert the tenon 8 at the end of each support into the mortise of a specially made vertical component to form a "rice" shaped mesh support structure. Select 8 vertical components 3a of 40cm specification and insert them into the mortises 7 on the remaining supports to form the main column.

[0049] Align the eight mortises 7 at the top of the eight cylindrical base plates 5 with the tenons 8 on the side of the bracket at the eight ends of the base frame 4, press them vertically to fit them in, and ensure that the base plates 5 and the base frame 4 fit together completely to form a stable support base.

[0050] If vertical height is required, another one or more vertical components 3a are inserted into the mortise 7 of one or more vertical components 3a at the top of the main column, and the tenon 8 is fully inserted into the mortise 7 to form a continuous vertical extension.

[0051] If a turning extension is required, one or more curved components 3b can be embedded into the mortise 7 of one or more vertical components 3a at the top of the main column. The bending direction can be adjusted according to the spatial layout. Then, other vertical components 3a or curved components 3b can be connected to the mortise 7 at the other end of the curved component 3b to achieve horizontal or vertical extension.

[0052] Based on the cat's activities and habits, install the disc 2 at the top, corner, or preset position of the frame. Align the mortise 7 at the center of the back of the disc 2 with the tenon 8 of the corresponding component and press it vertically downwards to make the tenon 8 fully embedded in the mortise 7. Ensure that the disc 2 is horizontal and not tilted. You can gently shake it to check its stability.

[0053] Eight discs are installed according to the principle of staggered heights to form a three-tiered movable platform: upper, middle, and lower.

[0054] If the overall cat tree 1 is too tall, the hidden counterweight compartment 6 in the chassis can be opened and heavy objects, such as cast iron blocks or gravel, can be placed inside to stabilize the cat tree 1 and prevent it from tipping over. The weight can be added or removed as needed for stability, and the cover plate can be tightened and sealed using mortise and tenon joints.

[0055] Once assembled, gently push each part of the cat climbing frame 1 to confirm that the base frame 4 is not displaced, the tenon and mortise components 3 are not loose, and the disc 2 is level.

[0056] Check that all mortise and tenon joints are fully fitted and free of obvious gaps, and ensure that the force is evenly distributed.

[0057] Through the flexible combination of standardized mortise and tenon components 3, a stable tree-like three-dimensional cat climbing frame 1 is finally formed, which can be disassembled, replaced and adjusted at any time according to needs or damage.

[0058] In this embodiment, the diameter of disc 2 can be adjusted to 40cm for small cats and 50cm for large cats, depending on the size of the cat and its space requirements. A 20cm shorter vertical component can also be added to facilitate the construction of a low-profile design.

[0059] We can also optimize the disc 2 by replacing it. The shape of disc 2 can be optimized into other shapes, such as oval, regular hexagon, and other regular polygons, while maintaining the standardized design of the mortise and tenon joint at the center of the back. All discs of any shape can be precisely connected with the mortise and tenon component 3, and the edges are rounded to suit different home styles and cat activity preferences.

[0060] In addition, some auxiliary components can be added, such as cat beds and scratching boards with mortise and tenon joints. These auxiliary components are equipped with standardized tenons 8 or mortises 7, which can be directly fixed to the disc 2 or other mortise and tenon components 3.

[0061] Secondly, the number of supports of the base frame 4 can be optimized. The supports of the base frame 4 can be optimized to 3, 4 or 6, and the corresponding cross form can be adjusted to "Y" or "X". All base frames 4 with different numbers of supports are cross-connected by mortise and tenon structure, and the connection method with the chassis and mortise and tenon components 3 is consistent to ensure support stability.

[0062] Finally, the bending angle of the curved component 3b can be extended to 60° to accommodate narrower spaces and the activities of smaller cats, or to 120° for open spaces. It can be used to create a fan-shaped frame, increasing the horizontal extension of the path and providing cats with a wider jumping path.

[0063] By combining multiple angles, users can customize the overall orientation of the cat tree 1 according to their home environment, adapting it to more scenarios.

[0064] This utility model, through the aforementioned modular design, allows for the free customization of the cat tree's shape, size, and function. Users can freely combine them like building blocks, based on their home space, cat habits, and aesthetic preferences, to create a unique cat paradise.

[0065] The entire system is structurally sound, safe and environmentally friendly, and combines practicality with fun.

[0066] The technical terms, principles, or means related to the technical solutions of the present invention mentioned in the above embodiments, which are not described in detail above, are all well-known technologies or common practices that are known to those skilled in the art.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A modular mortise and tenon structure cat climbing frame, characterized in that, Includes a base frame (4), which is composed of multiple supports connected by mortise and tenon components (3), and its lower part is connected to a cylindrical base plate (5) by mortise and tenon fitting. The base frame (4) and the cylindrical base plate (5) together form a support base, and the tree-shaped three-dimensional frame is connected to the disc (2) by the tenon and mortise assembly (3) extending upward; the disc (2) is fixed to the end of the frame.

2. The modular mortise and tenon structure cat climbing frame according to claim 1, characterized in that, The tenon and mortise assembly (3) includes a vertical assembly (3a) and a curved assembly (3b), wherein the bending angle of the curved assembly (3b) is 90°.

3. A modular mortise and tenon structure cat climbing frame according to claim 2, characterized in that, Both the vertical component (3a) and the curved component (3b) are provided with tenons (8) and mortises (7).

4. A modular mortise and tenon structure cat climbing frame according to claim 3, characterized in that, The tenon (8) and mortise (7) are designed with an interference fit. The outer diameter of the tenon (8) is slightly larger than the inner diameter of the mortise (7), and a tight fit is achieved through physical compression.

5. A modular mortise and tenon structure cat climbing frame according to claim 3, characterized in that, The disc (2) has a diameter of 40-50cm and rounded edges. The upper surface of the disc (2) has an annular groove. A mortise (7) matching the tenon (8) is provided at the center of its back. The mortise (7) at the center is connected to the tenon (8) on the vertical component (3a) or the curved component (3b) to achieve docking and fixation.

6. A modular mortise and tenon structure cat climbing frame according to claim 5, characterized in that, The number of discs (2) is at least 3 and they are distributed at different heights along the height direction of the cat climbing frame (1), with a vertical distance of 20-30cm between adjacent discs (2).

7. A modular mortise and tenon structure cat climbing frame according to claim 1, characterized in that, The cylindrical chassis (5) has a diamond-shaped anti-slip pattern on its bottom surface, with a pattern depth of 0.8-1.2mm and a pattern spacing of 5-8mm.

8. A modular mortise and tenon structure cat climbing frame according to claim 1, characterized in that, The cylindrical chassis (5) has a hidden counterweight compartment (6) inside, which is a cylindrical cavity with an open top.

9. A modular mortise and tenon structure cat climbing frame according to claim 1, characterized in that, The mortise and tenon joint between the base frame (4) and the cylindrical base (5) is specifically as follows: the bottom end of the support of the base frame (4) is provided with a tenon (8), and the top end of the cylindrical base (5) is provided with a mortise (7) that matches the tenon (8).

10. A modular mortise and tenon structure cat climbing frame according to claim 5, characterized in that, The cat climbing frame (1) has 40 mortise and tenon components (3), all of which are physically connected by interlocking.

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