A pet bag with wear protection

Abstract

The utility model discloses a support framework and the cladding layer that clads in support framework outside, support framework includes bottom bar, top bar, side rod, top holding spare, first connecting unit, second connecting unit and third connecting unit, first connecting unit, second connecting unit are located the top angle at framework, the surface of first connecting unit, second connecting unit and cladding layer contact is curved surface, the curved surface increases the contact area with cladding layer, reduces the stress concentration while facilitating the installation of support framework and cladding layer, be located the second connecting unit and third connecting unit on the same top bar, second connecting unit protrudes from third connecting unit along the outside direction of framework, to make cladding layer preferentially stick to second connecting unit, and the application is through the size difference design and adds the smooth curved surface design, guarantees the complete function while eliminating the support framework wear and tear source to improve the service life of cladding layer.

Description

Technical Field

[0001] This utility model relates to the field of bags, specifically to a wear-resistant pet bag. Background Technology

[0002] Existing patent CN222532444U discloses an adaptive stiffness package that allows the support frame to actively expand outward to better fit the outer covering layer. This active expansion is achieved through two top supports at the top of the support frame, which are connected to the two side frames via a third connecting unit. Simultaneously, the vertices of the support frame are connected via a first connecting unit and a second connecting unit. However, because the first and second connecting units used in this application have sharp edges, under the force of the top supports, the connecting units actively press against the covering layer. Over time, the sharp edges of the connecting units will cause wear to the covering layer. The fundamental problem is not the sharpness of any single connecting unit. The issue isn't the degree of wear, but rather the systemic wear risk arising from its overall architecture, which contains multiple force-bearing contact points, namely the first and second connecting units. Under the action of the top holding force, all these contact points will competitively push the covering layer. This means that optimizing only a single type of connector is ineffective, because another type of connector that is not optimized will become a new source of wear. Therefore, how to coordinate all potential contact points in this adaptive support skeleton system with top holding components, ensuring that the covering layer only contacts the optimized, harmless interface under any circumstances, thereby eliminating the risk of wear without sacrificing removability and adjustability, becomes a problem that needs to be solved. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and provide a wear-resistant pet carrier that can eliminate the risk of wear without sacrificing detachability and adjustability.

[0004] To achieve the above objectives, the various embodiments of this utility model adopt the following technical solutions, but are not limited to the following solutions: The first technical solution relates to a wear-resistant pet carrier, comprising a supporting frame, support members held between the supporting frames, and a covering layer covering the outside of the supporting frame. The supporting frame includes a bottom rod, side rods, a top rod, a first connecting unit, a second connecting unit, and a third connecting unit. The bottom rod is connected to the first connecting unit to form a quadrilateral bottom frame. The first connecting unit is located at the four apex corners of the bottom frame. The lower end of the side rod is connected to the first connecting unit, and the top end of the side rod is connected to the second connecting unit. Each top rod is connected to two opposite second connecting units and is equipped with... The side frame is formed by the side rod, the first connecting unit, and the bottom rod; the top support is connected to the top of the two side frames through the third connecting unit, so that the support frame expands outward; the surfaces of the first connecting unit and the second connecting unit that contact the covering layer are curved surfaces, which increase the contact area with the covering layer, reduce stress concentration, and facilitate the installation of the covering layer and the support frame; the second connecting unit and the third connecting unit are located on the same top rod, with the second connecting unit protruding from the third connecting unit along the outer direction of the support frame, so that the covering layer preferentially abuts against the second connecting unit.

[0005] The second technical solution is based on the first technical solution, wherein the surface in contact with the coating layer of the first connecting unit is a curved surface.

[0006] The third technical solution is based on the first or second technical solution, wherein the curvature of the surfaces in contact with the first connecting unit, the second connecting unit and the covering layer is R2mm-R8mm.

[0007] The fourth technical solution is based on the first technical solution, wherein the surface in contact with the covering layer of the third connecting unit is a curved surface.

[0008] The fifth technical solution is based on the first technical solution. One end of the side rod is provided with a first through hole, and the first connecting unit is provided with a fixing part. The fixing part extends along the length direction of the side rod and is provided with a second through hole. When the side rod is assembled with the first connecting unit, the second through hole is aligned with the first through hole and is suitable for inserting a pin so that the side frame can be tilted and stored.

[0009] The sixth technical solution is based on the first technical solution, wherein the first connection unit includes at least three connection ports, and the opening directions of the connection ports are perpendicular to each other.

[0010] The seventh technical solution is based on the first technical solution, wherein the third connecting unit is attached to the second connecting unit.

[0011] The eighth technical solution is based on the first technical solution, wherein the first connecting unit, the second connecting unit, and the third connecting unit are circular tubes.

[0012] The ninth technical solution is based on the first technical solution. After the top support is installed on the support frame through the third connecting unit, the expansion force applied to the top of the side frame is 40N to 60N.

[0013] As can be seen from the above description of the various embodiments of the present utility model, compared with the prior art, the various embodiments of the present utility model have the following beneficial effects: By designing the surface of the second connecting unit in contact with the covering layer as a curved surface, the line or point contact is transformed into a surface contact, thereby dispersing the top holding force, reducing the pressure per unit area of ​​the covering layer, and avoiding punctures and wear caused by stress concentration. Simultaneously, the curved surface of the surface in contact with the covering layer also improves the ease of installation between the support frame and the covering layer. The second and third connecting units, located on the same top rod, ensure that the second connecting unit protrudes more from the outside of the frame than the third connecting unit, guaranteeing that when the support frame expands outward, the second connecting unit exclusively contacts and tightly adheres to the covering layer. The layer shields the third connecting unit with sharp edges from the effective contact range. The core of the whole solution is the size difference design, which ensures that the optimized curved support can become the only force transmission interface and ensures that the covering layer will only contact the optimized curved surface, eliminating other wear sources inside the system. This solution avoids the increase in manufacturing costs caused by re-molding and customizing connecting parts without changing standard parts such as connectors. By using the dual design of size difference and smooth curved surface, the two work together to optimize the service life of the covering layer while maintaining the functional integrity of the solution. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A structural diagram of a pet carrier designed to prevent wear and tear; Figure 2 This is a structural diagram of the second and third connecting units located on the same top rod; Figure 3 This is a schematic diagram of the structure of the first connecting unit; Explanation of key figure labels: 1. Support frame; 2. Top support; 3. Covering layer; 11. Bottom rod; 12. Side rod; 13. Top rod; 14. First connecting unit; 15. Second connecting unit; 16. Third connecting unit; 17. Side frame; 121. First through hole; 141. Fixing part; 1411. Second through hole. Detailed Implementation

[0016] 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 preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0018] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0019] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0020] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0021] See Figure 1 , Figure 1 A schematic diagram of the structure of an abrasion-resistant pet carrier is shown, which includes a support frame 1, a top support 2, and a covering layer covering the outside of the support frame 1.

[0022] See Figure 1 and Figure 3 , Figure 1 A schematic diagram of the structure of a wear-resistant pet carrier is shown. Figure 3A schematic diagram of the structure of the first connecting unit 14 is shown. The support frame 1 includes a bottom rod 11, a side rod 12, a top rod 13, a first connecting unit 14, a second connecting unit 15, and a third connecting unit 16. One end of the side rod 12 is provided with a first through hole 121. The first connecting unit 14 is provided with a fixing part 141 and three connecting ports, the opening directions of the three connecting ports are perpendicular to each other. The fixing part 141 extends along the length direction of the side rod 12, and the fixing part 141 is provided with a second through hole 1411. The surfaces of the first connecting unit 14, the second connecting unit 15, and the third connecting unit 16 that contact the covering layer are curved surfaces. The purpose of setting the contact surface of the second connecting unit 15 with the covering layer as a curved surface is to reduce stress concentration, improve the service life of the covering layer, and facilitate the installation of the covering layer and the support frame 1. The purpose of setting the contact surface of the first connecting unit 14 with the covering layer as a curved surface is that, since the first connecting unit 14 is located at the apex of the support frame 1, it will inevitably contact the covering layer. In order to further optimize the service life of the covering layer, it is set as a curved surface to reduce stress concentration. The purpose of setting the surface of the third connecting unit 16 in contact with the covering layer as a curved surface is to avoid the third connecting unit 16 and the covering layer coming into contact and causing wear in extreme cases. Therefore, the contact surface between the third connecting unit 16 and the covering layer is further optimized. The curvature of the surface of the first connecting unit 14, the second connecting unit 15, and the third connecting unit 16 is R2mm-R8mm. The purpose of setting the curvature to R2mm-R8mm is that if the curvature is too small, the shape of the connection point will still be close to the edge, which will still lead to stress concentration. If the curvature is too large, it will weaken the support strength and occupy too much internal space. This range is the best balance point between the protective effect, structural strength, and space utilization, ensuring the reliability and universality of the curved surface design. In this embodiment, the surface of the first connecting unit 14, the second connecting unit 15, and the third connecting unit 16 in contact with the covering layer is a curved surface. In other embodiments, the first connecting unit 14, the second connecting unit 15, and the third connecting unit 16 can be a circular tube to maximize the service life of the covering layer.

[0023] See Figure 1 and Figure 2 , Figure 2A schematic diagram of the structure of the second connecting unit 15 and the third connecting unit 16 located on the same top rod 13 is shown; the bottom rod 11 is inserted into the first connecting unit 14 to form a quadrilateral bottom frame, and the first connecting unit 14 is located at the four apex positions of the quadrilateral bottom frame; one end of the side rod 12 with the first through hole 121 is inserted into the first connecting unit 14, and the top end of the side rod 12 is inserted into the second connecting unit 15; the beginning and end of one top rod 13 are respectively connected to two second connecting units 15; the bottom rod 11, the first connecting unit 14, the side rod 12, and the second connecting unit 15 together form the side frame of the supporting skeleton 1; the top support 2 is connected through the third connecting unit 16. Unit 16 is connected to the top of the two side frames. When the top support 2 is connected to the top of the two side frames, the expansion force it applies to the top of the side frames is 40N to 60N, and its optimal expansion force is 53N. The purpose of this design is that this range of expansion force ensures that the support frame 1 can remain fully open at all times, effectively resisting the compression and deformation caused by the pet's movement or shift in center of gravity inside the bag. The optimal force value of 53N can achieve a balance between providing maximum support stiffness and maintaining reasonable elasticity, providing a stable and spacious internal space while avoiding fatigue of the frame material or damage to the connection points due to excessive rigidity. When the top support 2 is connected to the top of the two side frames via the third connecting unit 16, the third connecting unit 16 is close to the second connecting unit 15. The purpose of designing the third connecting unit 16 to be close to the second connecting unit 15 is that, due to its size difference design, the third connecting unit 16 is easier to hide below the second connecting unit 15, thus avoiding contact between the third connecting unit 16 and the covering layer. The first connecting unit 14 and the second connecting unit 15 are located at the apex of the supporting frame 1. When the top support 2 supports the two side frames to expand outward, the second connecting unit 15 at the apex... Unit 15 protrudes outward and is located on the same top rod 13 as the second connecting unit 15 and the third connecting unit 16. The second connecting unit 15 protrudes outward from the third connecting unit 16 along the outer side of the support frame 1. The purpose is to ensure that when the support frame 1 expands outward, the second connecting unit 15 exclusively contacts and adheres to the covering layer, thereby shielding the third connecting unit 16 from the effective contact range. The size difference design ensures that the curved surfaces of the first connecting unit 14 and the second connecting unit 15 can become the only force transmission interface, ensuring that the covering layer only contacts the curved surface and eliminating other wear sources inside the system.

[0024] To facilitate the storage of the bag, the side rod 12 is pulled out from the first connecting unit 14 and placed in the fixing part 141. At this time, the first through hole 121 and the second through hole 1411 are aligned. A pin is inserted and the top support 2 is removed, so that the side frame can be tilted along the direction of the bottom frame for easy storage.

[0025] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A wear-resistant pet carrier, characterized in that, It includes a support frame (1), support members (2) supporting the support frame (1), and a covering layer covering the outside of the support frame (1). The support frame (1) includes a bottom rod (11), side rods (12), top rods (13), a first connecting unit (14), a second connecting unit (15), and a third connecting unit (16). The bottom rod (11) is connected to the first connecting unit (14) to form a quadrilateral bottom frame. The first connecting unit (14) is located at the four apex corners of the bottom frame. The lower end of the side rod (12) is connected to the first connecting unit (14), and the top end of the side rod (12) is connected to the second connecting unit (15). Each top rod (13) is connected to two opposite second connecting units (15). Connect and cooperate with the side rod (12), the first connecting unit (14) and the bottom rod (11) to form a side frame; the top support (2) is connected to the top of the two side frames through the third connecting unit (16) so that the support frame (1) expands outward; the surface of the second connecting unit (15) in contact with the covering layer is curved, the curved surface increases the contact area with the covering layer, reduces stress concentration and facilitates the installation of the covering layer and the support frame; the second connecting unit (15) and the third connecting unit (16) are located on the same top rod (13), the second connecting unit (15) protrudes out of the third connecting unit (16) along the outer direction of the support frame (1) so that the covering layer preferentially abuts against the second connecting unit (15).

2. The wear-resistant pet carrier as described in claim 1, characterized in that, The surface of the first connecting unit (14) that contacts the covering layer is curved.

3. A wear-resistant pet carrier as described in claim 1 or 2, characterized in that, The curvature of the surfaces in contact with the coating layer of the first connecting unit (14) and the second connecting unit (15) is R2mm-R8mm.

4. The wear-resistant pet carrier as described in claim 1, characterized in that, The surface of the third connecting unit (16) that contacts the covering layer is curved.

5. The wear-resistant pet carrier as described in claim 1, characterized in that, One end of the side rod (12) is provided with a first through hole (121), and the first connecting unit (14) is provided with a fixing part (141). The fixing part (141) extends along the length direction of the side rod (12), and the fixing part (141) is provided with a second through hole (1411). When the side rod (12) is assembled to the first connecting unit (14), the second through hole (1411) is aligned with the first through hole (121) and is suitable for inserting a pin so that the side frame can be tilted and stored.

6. The wear-resistant pet carrier as described in claim 1, characterized in that, The first connection unit (14) includes at least three connection ports, and the opening directions of the connection ports are perpendicular to each other.

7. The wear-resistant pet carrier as described in claim 1, characterized in that, The third connecting unit (16) is attached to the second connecting unit (15).

8. The wear-resistant pet carrier as described in claim 1, characterized in that, The first connecting unit (14), the second connecting unit (15), and the third connecting unit (16) are circular tubes.

9. The wear-resistant pet carrier as described in claim 1, characterized in that, After the top support (2) is installed on the support frame (1) through the third connecting unit (16), the expansion force applied to the top of the side frame is 40N to 60N.

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