A hinged structure assembly for a pet cage

Abstract

The application provides a hinge structure assembly of a pet cage, which comprises a first connecting cylinder, the outer wall of the first connecting cylinder is provided with a plurality of arc-shaped or circular first limiting bodies, and the top of the first connecting cylinder is provided with a first connecting hole; the outer wall of a second connecting cylinder is provided with arc-shaped or circular second limiting bodies, at least one of the second limiting bodies is movably attached to the first limiting bodies on both sides, and the top of the second connecting cylinder is provided with a second connecting hole; the connecting piece is in the shape of an open downward U, and the two sides of the connecting piece are vertically located in the first connecting hole and the second connecting hole respectively. The hinge structure assembly of the pet cage can better connect the pet cage.

Description

Technical Field

[0001] This invention belongs to the field of pet cage technology and relates to a hinged structure component for a pet cage. Background Technology

[0002] A pet cage is a dwelling for a pet. Typically, a pet cage is cage-shaped and has a door for the pet to enter and exit. Once the pet is inside the cage, the owner can lock it to prevent the pet from escaping.

[0003] Common pet cages typically consist of a top and bottom cage section (this is a general term and does not mean that the two sections have the same structure), and four side enclosures located between the top and bottom cage sections. A door is also hinged to one of the side enclosures, and there is a lock between the door and the enclosure for the pet to enter and exit, and the door can also be locked. Summary of the Invention

[0004] The purpose of this invention is to provide a hinged structure component for a pet cage, which aims to achieve the effect of connecting the cage.

[0005] To solve the above-mentioned technical problems, the present invention provides a hinged structure assembly for a pet cage, comprising:

[0006] The first connecting cylinder has several arc-shaped or circular first limiting bodies on its outer wall, and a first connecting hole is opened at the top of the first connecting cylinder.

[0007] The second connecting cylinder has an arc-shaped or circular second limiting body on its outer wall. At least one of the second limiting bodies is movably attached to the first limiting body on both sides. The top of the second connecting cylinder has a second connecting hole.

[0008] The connector is U-shaped with its opening facing downwards, and its two sides are vertically located in the first connecting hole and the second connecting hole, respectively.

[0009] The present invention is further configured such that a plurality of first synchronization bars are provided on the outer wall of the first connecting cylinder, and a plurality of second synchronization bars are provided on the outer wall of the second connecting cylinder, wherein the first synchronization bars and the second synchronization bars mesh with each other.

[0010] The present invention is further configured such that there are two first limiting bodies and two sets of first synchronization bars, with the two sets of first synchronization bars located on both sides of the two first limiting bodies.

[0011] The present invention is further configured such that the first connecting hole includes a first hole portion and a second hole portion communicating with the bottom of the first hole portion and having a diameter larger than the first hole portion, and a clearance hole is vertically provided on the side of the first hole portion, the top of the clearance hole penetrating the first connecting cylinder and the bottom communicating with the second hole portion;

[0012] The connector includes a first connecting portion and a second connecting portion and a third connecting portion connected to both ends of the first connecting portion, wherein the length of the second connecting portion is greater than the length of the third connecting portion, the outer wall of the second connecting portion is attached to the inner wall of the first hole, and the outer wall of the second connecting portion is attached to the inner wall of the second connecting hole;

[0013] The second connecting portion has a limiting protrusion on its side that can pass through the relief hole. The limiting protrusion is located inside the second hole, and the projection of the limiting protrusion in the vertical direction is located on the side of the projection of the relief hole in the vertical direction.

[0014] The present invention is further configured such that an operating ring is provided on the outer side of the first connecting portion, and the operating ring is attached to the top of the first connecting cylinder and the second connecting cylinder.

[0015] The present invention is further configured such that an operating body is provided on the top of both sides of the operating ring, and an anti-slip body is horizontally provided on the side of the operating body opposite to the other operating body.

[0016] The invention is further configured to include a U-shaped support member with an opening facing downwards, and two support holes are vertically opened through the connector. The bottom of the first connection hole passes through the first connecting cylinder, and the bottom of the second connection hole passes through the second connecting cylinder. The two support holes are respectively passed through the two sides of the support member.

[0017] The present invention is further configured such that the length of one side of the support member is greater than the length of the other side.

[0018] The present invention is further configured such that a first connecting body is provided on the side of the first connecting cylinder opposite to the second connecting cylinder, a first positioning hole is opened vertically through the first connecting body, and a first connecting hole communicating with the first positioning hole is opened on the side of the first connecting body; a second connecting body is provided on the side of the second connecting cylinder opposite to the first connecting cylinder, a second positioning hole is opened vertically through the second connecting body, and a second connecting hole communicating with the second positioning hole is opened on the side of the second connecting body.

[0019] The present invention is further configured such that the top of the first connector and the second connector are both provided with a horizontally opening slot and a vertically opening slot hole, the top of the slot hole communicates with the slot, both ends of the slot penetrate the first connector or the second connector, and both slots are located between the first positioning hole and the second positioning hole.

[0020] It also includes a first locking element and a second locking element;

[0021] The first locking member includes two U-shaped first locking parts with downward openings and a second locking part connected to both ends of the two first locking parts. Moving the first locking member can cause the middle parts of the two first locking parts to respectively engage with the two locking slots.

[0022] The second locking member includes two vertical third locking parts and a V-shaped fourth locking part connected to the top of the two third locking parts. Moving the second locking member allows the two third locking parts to be located in the two locking holes respectively, and the two ends of the fourth locking part to be located in the two locking slots respectively.

[0023] Compared with the prior art, the present invention provides a hinged structure assembly for a pet cage. Firstly, during use, a side cage frame of one side of the pet cage is connected to the outer sides of both the first and second connecting cylinders. Preferably, several side cage frames are connected end-to-end via a hinged structure. For example, if there are two side cage frames, there is only one set of hinged structure assemblies between them (the number can be one or more). If there are three side cage frames, there are two sets of hinged structure assemblies between the three side cage frames (i.e., the solution of this application), and so on. During use, since the first and second connecting cylinders can rotate relative to each other in both directions, adjacent side cage frames can be folded forward or backward. That is, if there are only two side cage frames, they fold into a V-shape; if there are three side cage frames, they can fold into a Z-shape. This facilitates the carrying and storage of the entire pet cage, such as when going outdoors for play, as it can be easily placed and carried after folding.

[0024] During use, the first and second connecting cylinders are limited by the connecting parts and therefore cannot move away from each other. At the same time, during use, the second limiting body and the first limiting body form an interlocking form, which allows the first and second connecting cylinders to rotate relative to each other, but not to move vertically relative to each other. This ensures the stability of the connection between the first and second connecting cylinders, and also ensures the positional stability of the connected side cage frame. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the structure of a hinged structure component of a pet cage according to the present invention during use.

[0026] Figure 2 yes Figure 1 Enlarged view of section A;

[0027] Figure 3 This is a cross-sectional view of an embodiment of the hinged structure component of a pet cage according to the present invention;

[0028] Figure 4 yes Figure 3 Enlarged view of section B;

[0029] Figure 5 This is a schematic diagram of an embodiment of the first connecting cylinder portion in the hinged structure assembly of a pet cage according to the present invention;

[0030] Figure 6 This is a cross-sectional view of an embodiment of the first connecting cylinder portion in the hinged structure assembly of a pet cage according to the present invention;

[0031] Figure 7 This is a schematic diagram of an embodiment of the second connecting cylinder portion in the hinged structure assembly of a pet cage according to the present invention;

[0032] Figure 8 This is a schematic diagram of an embodiment of a connector in the hinged structure assembly of a pet cage according to the present invention;

[0033] Figure 9 This is a schematic diagram of an embodiment of the first locking member in the hinge structure assembly of a pet cage according to the present invention;

[0034] Figure 10 This is a schematic diagram of an embodiment of the first connecting cylinder, the second connecting cylinder, and the second locking member in the hinged structure assembly of a pet cage according to the present invention.

[0035] Figure 11 This is a schematic diagram of an embodiment of the first locking member in the hinge structure assembly of a pet cage according to the present invention.

[0036] The components are as follows: 1. First connecting cylinder; 2. First limiting body; 3. First connecting hole; 3a. First hole portion; 3b. Second hole portion; 4. Second connecting cylinder; 5. Second limiting body; 6. Second connecting hole; 7. Connecting member; 7a. First connecting part; 7b. Second connecting part; 7c. Third connecting part; 8. First synchronization bar; 9. Second synchronization bar; 10. Clearance hole; 11. Limiting protrusion; 12. Operating ring; 13. Operating body; 14. Anti-slip body; 15. Support member; 16. Support hole; 17. First connecting body; 18. First positioning hole; 19. First connecting hole; 20. Second connecting body; 21. Second positioning hole; 22. Second connecting hole; 23. Locking groove; 24. Locking hole; 25. First locking member; 25a. First locking part; 25b. Second locking part; 26. Second locking member; 26a. Third locking part; 26b. Fourth locking part. Detailed Implementation

[0037] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the hinged structure assembly of a pet cage according to the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0038] A hinged structural component of a pet cage, such as Figures 1 to 11 As shown, it includes:

[0039] The first connecting cylinder 1 has several arc-shaped or circular first limiting bodies 2 on its outer wall, and a first connecting hole 3 is opened at the top of the first connecting cylinder 1.

[0040] The second connecting cylinder 4 has an arc-shaped or circular second limiting body 5 on its outer wall. At least one of the second limiting bodies 5 is movably attached to the first limiting body 2 on both sides. The top of the second connecting cylinder 4 has a second connecting hole 6.

[0041] The connector 7 is U-shaped with its opening facing downwards, and its two sides are vertically located in the first connecting hole 3 and the second connecting hole 6, respectively.

[0042] The outer wall of the first connecting cylinder 1 is provided with a plurality of first synchronization bars 8, and the outer wall of the second connecting cylinder 4 is provided with a plurality of second synchronization bars 9. The first synchronization bars 8 and the second synchronization bars 9 mesh with each other. There are two first limiting bodies 2, and two sets of first synchronization bars 8 are provided, with the two sets of first synchronization bars 8 located on both sides of the two first limiting bodies 2.

[0043] The first connecting hole 3 includes a first hole portion 3a and a second hole portion 3b that communicates with the bottom of the first hole portion 3a and has a diameter larger than that of the first hole portion 3a. A clearance hole 10 is vertically provided on the side of the first hole portion 3a. The top of the clearance hole 10 passes through the first connecting cylinder 1, and the bottom communicates with the second hole portion 3b.

[0044] The connector 7 includes a first connecting part 7a and a second connecting part 7b and a third connecting part 7c connected to both ends of the first connecting part 7a. The length of the second connecting part 7b is greater than the length of the third connecting part 7c. The outer wall of the second connecting part 7b is attached to the inner wall of the first hole 3a and the outer wall of the second connecting part 7b is attached to the inner wall of the second connecting hole 6.

[0045] The second connecting portion 7b has a limiting protrusion 11 on its side that can pass through the relief hole 10. The limiting protrusion 11 is located inside the second hole portion 3b, and the projection of the limiting protrusion 11 in the vertical direction is located on the side of the projection of the relief hole 10 in the vertical direction.

[0046] An operating ring 12 is provided on the outer side of the first connecting part 7a, and the operating ring 12 is attached to the top of the first connecting cylinder 1 and the second connecting cylinder 4. An operating body 13 is provided on the top of both sides of the operating ring 12, and an anti-slip body 14 is horizontally provided on the side of the operating body 13 facing away from the other operating body 13.

[0047] It also includes a U-shaped support member 15 with an opening facing downwards, and two support holes 16 vertically penetrating the connector 7. The bottom of the first connecting hole 3 penetrates the first connecting cylinder 1, and the bottom of the second connecting hole 6 penetrates the second connecting cylinder 4. The two sides of the support member 15 pass through the two support holes 16 respectively. The length of one side of the support member 15 is greater than the length of the other side.

[0048] The first connecting cylinder 1 has a first connecting body 17 on the side opposite to the second connecting cylinder 4. A first positioning hole 18 is opened vertically through the first connecting body 17. A first connecting hole 19 communicating with the first positioning hole 18 is opened on the side of the first connecting body 1. The second connecting cylinder 4 has a second connecting body 20 on the side opposite to the first connecting cylinder 1. A second positioning hole 21 is opened vertically through the second connecting body 20. A second connecting hole 22 communicating with the second positioning hole 21 is opened on the side of the second connecting body 20.

[0049] The top of both the first connector 17 and the second connector 20 is provided with a horizontally opening slot 23 and a vertically opening slot hole 24. The top of the slot hole 24 communicates with the slot 23. Both ends of the slot 23 penetrate the first connector 17 or the second connector 20. Both slots 23 are located between the first positioning hole 18 and the second positioning hole 21.

[0050] It also includes a first locking element 25 and a second locking element 26;

[0051] The first locking member 25 includes two U-shaped first locking parts 25a with downward openings and a second locking part 25b connected to both ends of the two first locking parts 25a. Moving the first locking member 25 can cause the middle parts of the two first locking parts 25a to respectively engage with the two locking slots 23.

[0052] The second locking member 26 includes two vertical third locking parts 26a and a V-shaped fourth locking part 26b connected to the top of the two third locking parts 26a. Moving the second locking member 26 can make the two third locking parts 26a respectively located in the two locking holes 24, and the two ends of the fourth locking part 26b respectively located in the two locking grooves 23.

[0053] The present invention provides a hinged structure assembly for a pet cage. In use, a side cage frame of one side of the pet cage is connected to the outer sides of both the first connecting cylinder 1 and the second connecting cylinder 4. Preferably, several side cage frames are connected end-to-end via a hinged structure. For example, if there are two side cage frames, there is only one set of hinged structure assemblies between them (the number can be one or more). If there are three side cage frames, there are two sets of hinged structure assemblies between the three side cage frames (i.e., the solution of this application), and so on. During use, since the first connecting cylinder 1 and the second connecting cylinder 4 can rotate relative to each other in both directions, adjacent side cage frames can be folded forward or backward. That is, if there are only two side cage frames, they can be folded into a V-shape; if there are three side cage frames, they can be folded into a Z-shape. This facilitates the carrying and storage of the entire pet cage, such as when going outdoors for play, it can be easily placed and carried after folding. In this application, the two side cage frames connected by a hinge structure can be rotated in the forward direction and then folded together, and can also be rotated in the reverse direction and then folded together, while conventional hinge structures can only rotate in one direction.

[0054] During use, the first connecting cylinder 1 and the second connecting cylinder 4 are limited by the connecting piece 7, so they cannot move away from each other. At the same time, during use, the second limiting body 5 and the first limiting body 2 form an interlocking form, which allows the first connecting cylinder 1 and the second connecting cylinder 4 to rotate relative to each other, but they cannot move vertically relative to each other. This ensures the stability of the connection between the first connecting cylinder 1 and the second connecting cylinder 4, and also ensures the positional stability of the connected side cage frame.

[0055] The first connecting cylinder 1 has several first synchronizing bars 8 on its outer wall, and the cross-section of the first connecting cylinder 1 and the first synchronizing bars 8 form a gear shape. Simultaneously, the cross-section of the second connecting cylinder 4 and the second synchronizing bar 9 also form a gear shape, and the two gear shapes mesh with each other. This design ensures better stability and synchronization of the relative rotation of the first connecting cylinder 1 and the second connecting cylinder 4 during rotation. Furthermore, there are two first limiting bodies 2 and only one second limiting body 5, which reduces production costs. The presence of two sets of first synchronizing bars 8 and two sets of second synchronizing bars 9 further disperses the force between the first connecting cylinder 1 and the second connecting cylinder 4 during rotation, preventing localized damage and ensuring the service life of the hinge structure.

[0056] During assembly and use, firstly, bring the first connecting cylinder 1 and the second connecting cylinder 4 close to each other, and ensure that the first connecting body 17, the first connecting cylinder 1, the second connecting cylinder 4 and the second connecting body 20 are in a straight line when viewed from top to bottom; then take the connecting piece 7 and rotate the angle of the connecting piece 7 so that the second connecting part 7b and the limiting protrusion 11 can enter the first hole 3a and the clearance hole 10, but at this time the third connecting part 7c and the second connecting hole 6 are at the farthest distance;

[0057] Then move the entire connector 7 downwards until the limiting protrusion 11 enters the second hole 3b from the clearance hole 10, and at the same time, the bottom of the third connecting part 7c just touches the first connecting body 17 or is slightly higher than the first connecting body 17. Then rotate the connector 7 180 degrees, so that the third connecting part 7c is directly above the second connecting hole 6. Continue to move the connector 7 downwards until the first connecting part 7a touches the top of the first connecting cylinder 1 and the second connecting cylinder 4. In subsequent use, even if the height of the connector 7 is raised to the point that the third connecting part 7c comes out of the second connecting hole 6, the side cage frame will limit the connector 7 at this time (as shown in the attached figure), so the connector 7 cannot rotate 180 degrees. Therefore, no matter how it is used, the connector 7 can be prevented from completely falling off.

[0058] When operating the connector 7, it can be easily operated through the operating ring 12; at the same time, when it is necessary to separate the adjacent side cages for carrying (for example, due to bumpy roads or long transportation time, long-term or large-amplitude shaking can easily cause damage to the hinge structure, separating the side cages can better prevent this situation from happening), the connector 7 can be raised simply by using the anti-slip body 14 and the operating body 13. When the third connecting part 7c is dislodged from the second connecting hole 6, the adjacent side cages can be separated for storage and carrying.

[0059] After the first connecting cylinder 1 and the second connecting cylinder 4 are connected, the structure of the side cage frame consists of an outer rectangular frame and several guardrails connected between the outer frames. During use, a section of the outer frame needs to be cut open, then the outer frame is bent to allow for elastic deformation. The first connecting body 17 is then moved to the misaligned outer frame, and the first positioning hole 18 is fitted onto one side of the outer frame. The hinge structure is moved so that the entire first connecting body 17 is positioned on the outer frame. The outer frame is then released and returned to a straight line. The first connecting body 17 is then moved so that the break point is located within the first positioning hole 18. Finally, the bolt is removed, passed through the first connecting hole 19, and threaded onto the outer frame. Preferably, the first connecting body 17 has two first connecting holes 19, with the bolts in the two first connecting holes 19 located on opposite sides of the cut. This significantly improves the structural stability of the outer frame after the cut. Similarly, the second connecting body 20 is fixedly connected to the other side of the outer frame using the same method.

[0060] When in use, several side cage frames are arranged in a suitable shape, such as three side cage frames forming a triangular temporary pet cage, two side cage frames forming a temporary pet cage between the side cage frames and the wall, four or more side cage frames forming a temporary pet cage, or four or more side cage frames forming a temporary pet cage between the side cage frames and the wall or fence. After the side cage frames are in the appropriate position, the support member 15 is taken out and passed through all the connectors 7 in the same group from top to bottom. The bottom of the support member 15 is then inserted into the soil, thereby fixing and supporting the temporary pet cage, making it stable to use. The length of the support member 15 is longer on one side than the other. Therefore, when using it, you only need to pass the longer side through one of the support holes 16 first, and then align it with the other support hole 16, so that you do not need to align two support holes 16 at the same time, making the operation more convenient.

[0061] Furthermore, once the side cage frames are positioned or angled appropriately, the angle between adjacent side cage frames can be fixed using the first locking member 25 or the second locking member 26. Specifically, after the middle part of the first locking part 25a engages with the two locking slots 23, the two sides of the first locking member 25 can limit the first connecting cylinder 1 and the second connecting cylinder 4, thereby preventing the first connecting cylinder 1 and the second connecting cylinder 4 from rotating relative to each other. Moreover, the middle part of the first locking part 25a also engages with the two locking slots 23, thus further ensuring the angle between adjacent side cage frames.

[0062] If it is another side cage frame that needs to maintain an angle, such as when the angle between adjacent side cage frames is 90 degrees, after the angle of the side cage frame is appropriate, take out the second locking part 26, insert the two third locking parts 26a into the two locking holes 24 respectively, and make the two ends of the fourth locking part 26b also lock into the two locking slots 23. In this way, the angle of adjacent side cage frames can be fixed, which is simple and convenient.

[0063] It should also be understood that, in actual use, the second locking part 25b can be either a straight line as shown in the attached figure or a V-shape; if it is a straight line, then when two adjacent side cage frames are on the same plane, the angle can be fixed by using the first locking part 25; if it is a V-shape, then when there is an obtuse angle between two adjacent side cage frames, the angle can also be locked by using the first locking part 25.

[0064] Similarly, the two sides of the fourth locking part 26b can be either 90 degrees or other obtuse or acute angles. In this way, in actual use, the angles of two adjacent side cage frames with obtuse or acute angles can be fixed, making it more widely applicable.

[0065] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A hinged structure assembly for a pet cage, characterized in that, include: The first connecting cylinder (1) has several arc-shaped or circular first limiting bodies (2) on its outer wall, and a first connecting hole (3) is opened at the top of the first connecting cylinder (1). The second connecting cylinder (4) has an arc-shaped or circular second limiting body (5) on its outer wall. At least one of the second limiting bodies (5) is movably attached to the first limiting body (2) on both sides. The top of the second connecting cylinder (4) has a second connecting hole (6). The connector (7) is U-shaped with its opening facing downwards, and the two sides of the connector (7) are respectively vertically located in the first connecting hole (3) and the second connecting hole (6); The first connecting hole (3) includes a first hole (3a) and a second hole (3b) that communicates with the bottom of the first hole (3a) and has a diameter larger than that of the first hole (3a). A clearance hole (10) is vertically provided on the side of the first hole (3a). The top of the clearance hole (10) passes through the first connecting cylinder (1) and the bottom communicates with the second hole (3b). The connector (7) includes a first connecting part (7a) and a second connecting part (7b) and a third connecting part (7c) connected to both ends of the first connecting part (7a). The length of the second connecting part (7b) is greater than the length of the third connecting part (7c). The outer wall of the second connecting part (7b) is attached to the inner wall of the first hole (3a), and the outer wall of the second connecting part (7b) is attached to the inner wall of the second connecting hole (6). The second connecting part (7b) is provided with a limiting protrusion (11) that can pass through the relief hole (10) on its side. The limiting protrusion (11) is located inside the second hole (3b), and the projection of the limiting protrusion (11) in the vertical direction is located on the side of the projection of the relief hole (10) in the vertical direction. The outer wall of the first connecting cylinder (1) is provided with a plurality of first synchronization bars (8), and the outer wall of the second connecting cylinder (4) is provided with a plurality of second synchronization bars (9), wherein the first synchronization bars (8) and the second synchronization bars (9) mesh with each other; There are two first limiting bodies (2) and two sets of first synchronization bars (8). The two sets of first synchronization bars (8) are located on both sides of the two first limiting bodies (2).

2. The hinged structure assembly of a pet cage according to claim 1, characterized in that, An operating ring (12) is provided on the outer side of the first connecting part (7a), and the operating ring (12) is attached to the top of the first connecting cylinder (1) and the second connecting cylinder (4).

3. The hinged structure assembly of a pet cage according to claim 2, characterized in that, The top of both sides of the operating ring (12) is provided with an operating body (13), and an anti-slip body (14) is horizontally provided on the side of the operating body (13) facing away from the other operating body (13).

4. The hinged structure assembly of a pet cage according to claim 1, characterized in that, It also includes a U-shaped support member (15) with an opening facing downwards, and two support holes (16) are opened vertically through the connector (7). The bottom of the first connecting hole (3) passes through the first connecting cylinder (1), and the bottom of the second connecting hole (6) passes through the second connecting cylinder (4). The two support holes (16) are respectively opened through the two sides of the support member (15).

5. The hinged structure assembly of a pet cage according to claim 4, characterized in that, The length of one side of the support member (15) is greater than the length of the other side.

6. The hinged structure assembly of a pet cage according to claim 1, characterized in that, The first connecting cylinder (1) has a first connecting body (17) on the side away from the second connecting cylinder (4), and a first positioning hole (18) is opened vertically through the first connecting body (17). A first connecting hole (19) communicating with the first positioning hole (18) is opened on the side of the first connecting body (17). The second connecting cylinder (4) has a second connecting body (20) on the side away from the first connecting cylinder (1), and a second positioning hole (21) is opened vertically through the second connecting body (20). A second connecting hole (22) communicating with the second positioning hole (21) is opened on the side of the second connecting body (20).

7. The hinged structure assembly of a pet cage according to claim 6, characterized in that, The top of the first connector (17) and the second connector (20) are both provided with a horizontal slot (23) and a vertical slot (24). The top of the slot (24) communicates with the slot (23). Both ends of the slot (23) penetrate the first connector (17) or the second connector (20). Both slots (23) are located between the first positioning hole (18) and the second positioning hole (21). It also includes a first locking element (25) and a second locking element (26); The first locking member (25) includes two U-shaped first locking parts (25a) with downward openings and a second locking part (25b) connected to both ends of the two first locking parts (25a). Moving the first locking member (25) can cause the middle parts of the two first locking parts (25a) to respectively engage with the two locking slots (23). The second locking member (26) includes two vertical third locking parts (26a) and a V-shaped fourth locking part (26b) connected to the top of the two third locking parts (26a). Moving the second locking member (26) allows the two third locking parts (26a) to be located in the two locking holes (24) respectively, and the two ends of the fourth locking part (26b) to be located in the two locking grooves (23) respectively.

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