Rotating structure of folding frame and folding frame thereof

Abstract

The utility model discloses a rotating structure of a folding frame. The rotating structure comprises a left mounting seat, a right mounting seat and a limiting button, one end of the left mounting seat is hinged with the right mounting seat; a spring is also arranged in the left mounting seat; the limiting button is mounted on the left mounting seat in a sliding manner and is connected with the spring; the right mounting seat is provided with a first limiting part; the limiting button comprises an operation part, and a second limiting part and an extension part which are distributed in a step manner; under the action of the spring, the first limiting part and the second limiting part can be matched in a concave-convex manner, so that the left mounting seat and the right mounting seat are linear and locked; the connecting part is high in rigidity and not prone to swinging and shaking, the limiting button does not need to be operated after bending, automatic locking and resetting can be achieved, and operation is convenient. The utility model further discloses a folding frame applying the rotating structure, the frame body can be folded and stored, shaking is not prone to occurring, the structure is stable, and folding and straightening are smooth.

Description

Technical Field

[0001] The utility model relates to a rotating structure applied to a folding frame and a folding frame applying the rotating structure. Background Art

[0002] As more and more people keep pets, a pet cage for pet transportation and storage has emerged. At present, a foldable pet cage frame has appeared on the market. A Chinese utility model patent with the patent number CN202020633717.0 and the patent name of a foldable pet cage frame and a pet cage discloses a folding pet cage frame solution, including an upper square frame, a lower square frame, and a folding support rod assembly connecting the upper square frame and the lower square frame; the folding support rod assembly includes an upper support tube, a lower support tube, an upper pivot seat, and a lower pivot seat; the upper pivot seat includes an upper tube sleeve part, a limiting groove provided at the end of the upper tube sleeve part, and a pivot groove provided at the end of the limiting groove, the lower pivot seat includes a lower tube sleeve part, a pivot seat provided on the lower tube sleeve part, a pressure spring, a locking tongue, and an operating rod provided on the locking tongue, and a connecting hole and a guiding groove are provided on the lower tube sleeve part; the locking tongue includes a body part and a tongue part, and the body part is provided with a sliding hole penetrating radially along the axis; a connecting hole and a guiding groove are provided at the upper end of the lower support tube; the upper end of the lower support tube is inserted into the lower tube sleeve part, and the connecting hole and the guiding groove of the lower support tube correspond to the connecting hole and the guiding groove of the lower tube sleeve part; the pressure spring is provided in the sliding hole, the body part is inserted into the lower support tube, the operating rod is slidably matched with the guiding groove, a pin body passes through the connecting hole and is fixedly connected with the lower support tube, one end of the pressure spring is matched with the pin body, and the other end is matched with one end of the sliding hole adjacent to the tongue part; the pivot seat and the pivot groove are pivotally connected. This utility model realizes the folding and splicing of the upper support tube and the lower support tube through the telescopic tongue part in the lower tube sleeve part. To facilitate the telescopic movement of the tongue part, the tongue part and the lower tube sleeve part are movably matched, resulting in an insufficiently compact structure at the connection part and easy swaying. Secondly, the connection part relies only on the tongue part for rigid support and bears pressure. After long-term use, the tongue part is prone to deformation. Summary of the Invention

[0003] The purpose of the utility model is to provide a rotating structure with a compact structure, not prone to swaying, and strong rigidity, and the rotating structure also has the functions of smooth bending and straightening and convenient operation.

[0004] Another purpose of the utility model is to provide a folding frame applying the above rotating structure, which can be folded and stored, the frame body is not prone to shaking, has a stable structure, and is smooth in both folding and unfolding.

[0005] The present utility model is implemented as follows: A rotating structure of a folding frame, comprising a left mounting seat, a right mounting seat and a limit button; one end of the left mounting seat is hinged to the right mounting seat; a spring is further provided inside the left mounting seat; the limit button is slidably mounted on the left mounting seat and connected to the spring; the right mounting seat is provided with a first limiting portion; the limit button comprises an operating portion, and a second limiting portion and an extension portion which are distributed in a stepped manner; under the elastic force of the spring, the first limiting portion and the second limiting portion can be in concave-convex fit, so that the left mounting seat and the right mounting seat are in a straight line and locked; when locked, the extension portion is located below the first limiting portion; a guiding surface which is inclined from the side of the extension portion close to the first limiting portion towards the side of the second limiting portion is provided; when the left mounting seat and the right mounting seat are hinged and bent, the front end of the first limiting portion can slide up and down along the guiding surface.

[0006] Preferably, the first limiting portion is provided with a convex portion having an outer arc; the second limiting portion is provided with a concave portion having an inner arc which is arc-matched with the convex portion.

[0007] Preferably, a first rivet groove perpendicular to the sliding direction of the limit button is formed on the top surface of the extension portion; a rivet is assembled in the first rivet groove; a second rivet groove perpendicular to the sliding direction of the limit button is formed on the bottom surface of the first limiting portion; a rivet is assembled in the second rivet groove; the first rivet groove and the second rivet groove are opposite in position when the left mounting seat and the right mounting seat can be in a straight line and locked.

[0008] Preferably, the limit button is provided with a column, and one end of the spring is sleeved on the column.

[0009] Preferably, a slope complementary to the inclination angle of the guiding surface is provided on the side of the first limiting portion close to the second limiting portion.

[0010] Preferably, the convex portion is provided with an arc chamfer at its front end.

[0011] A folding frame comprises the rotating structure of the folding frame as described above.

[0012] Preferably, it comprises a frame main body, and the frame main body comprises a fixed rod, a rotating rod and a three-way connector; the rotating rod comprises two connecting rods; the two connecting rods are connected by a rotating structure; the opposite ends of the two connecting rods are respectively hinged to the three-way connector; the two ends of the fixed rod are respectively inserted and fixed to the three-way connector.

[0013] Preferably, the frame main body is formed into a rectangular frame by four fixed rods and eight rotating rods which are connected end to end by eight three-way connectors; the fixed rods are divided into two groups and symmetrically distributed on the opposite sides of the frame main body; the rotating rods are bent inwards and rotate around the hinged parts and tend to approach the fixed rods.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the concave-convex cooperation of the first limiting part and the second limiting part, it is ensured that the connection part is not prone to swaying and shaking, and the structure is compact.

[0016] 2. By setting the guiding surface, the first limiting part is guided to slide up and down on the guiding surface, so as to realize the hinged bending or straightening of the left mounting seat relative to the right mounting seat. At the same time, the guiding surface enables the rotating structure to be automatically locked without operating the limiting button when it is straightened, which is convenient for operation. By further setting the inclined surface, interference between the first limiting part and the guiding surface is prevented.

[0017] 3. The extension part and the first limiting part are respectively provided with rivet grooves and are configured with rivets, which can provide strong support for the rotating device when it is subjected to pressure in the longitudinal direction, prevent the mating part from breaking or deforming in the locked state, and make the rotating structure more rigid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Is a perspective view of an embodiment of the present utility model (state where the first limiting part and the second limiting part are not mated);

[0019] Figure 2 Is an exploded view of an embodiment of the present utility model;

[0020] Figure 3 Is a cross-sectional view of an embodiment of the present utility model;

[0021] Figure 4 Is a front view of the mating and locking state of the first limiting part and the second limiting part of an embodiment of the present utility model;

[0022] Figure 5 Is a schematic diagram of the first limiting part sliding along the guiding surface of an embodiment of the present utility model;

[0023] Figure 6 Is a schematic structural diagram of the rotating rod of an embodiment of the present utility model;

[0024] Figure 7 Is a schematic diagram of the installation structure of the frame body of an embodiment of the present utility model;

[0025] Figure 8 Is a folding schematic diagram of the frame body of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0027] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0028] As Figure 1-5 shown, a rotating structure of a folding frame includes a left mounting seat 1, a right mounting seat 2 and a limit button 3; one end of the left mounting seat 1 is hinged to the right mounting seat 2; the left mounting seat 1 is provided with a button groove 11, and a spring 4 is provided at one end of the button groove 11 away from the right mounting seat 2; the limit button 3 is slidably mounted in the button groove 11 and is in contact connection with the spring 4; the right mounting seat 2 is provided with a first limiting portion 21; the limit button 3 includes an operating portion 31 extending out of the button groove 11 and a second limiting portion 32 and an extending portion 33 which are distributed in a stepped manner in the button groove 11; under the elastic force of the spring 4, the first limiting portion 21 and the second limiting portion 32 can be in concave-convex fit, so that the left mounting seat 1 and the right mounting seat 2 are in a straight line and locked; when locked, the extending portion 33 is located below the first limiting portion 21; a guiding surface 330 inclined towards the second limiting portion 32 is provided on one side of the extending portion 33 close to the first limiting portion 21, so that the front end of the first limiting portion 21 can slide up and down along the guiding surface 330 to guide the left mounting seat 1 to be hinged and bent or straightened relative to the right mounting seat 2.

[0029] As Figure 5As shown, when the left mounting base 1 and the right mounting base 2 need to be hinged and bent, the user drives the operating portion 31 of the limit button to move the limit button 3 away from the right mounting base 2, and the first limiting portion 21 is separated from the second limiting portion 32. Then, the left and right mounting bases are hinged and rotated so that the front end of the first limiting portion 21 reaches the guiding surface 330. After reaching, there is no need to operate the limit button 3 anymore. Only by continuing to rotate the left and right mounting bases, the front end of the first limiting portion 21 will slide from above the guiding surface to below, realizing the bending of the rotating structure. At this time, the spring 4 is in a compressed state. When straightening, only the left and right mounting bases need to be hinged and rotated. The front end of the first limiting portion 21 will slide from below the guiding surface 330 to above, and under the elastic force of the spring, the second limiting portion 32 will automatically reset and cooperate with the first limiting portion 21 to lock. That is, when the rotating structure is straightened, it can be automatically locked without operating the limit button 3, which is convenient to operate.

[0030] Further, on the one hand, the left mounting base 1 and the right mounting base 2 are hinged, and on the other hand, they are in concave-convex fit through the first limiting portion 21 and the second limiting portion 32, so that when the rotating structure is in the straightened and locked state, the structure is stable and not prone to left-right shaking. Preferably, the first limiting portion 21 is provided with an outer arc-shaped convex portion 210; the second limiting portion 32 is provided with an inner arc-shaped concave portion 320 that is arc-shaped to match the convex portion 210; the front end of the convex portion 210 can slide on the guiding surface 330.

[0031] Further, the top surface of the extension portion 33 is provided with a first rivet groove 331 perpendicular to the sliding direction of the limit button 3; a rivet 5 is assembled in the first rivet groove 331; the bottom surface of the first limiting portion 21 is provided with a second rivet groove 211 perpendicular to the sliding direction of the limit button 3; a rivet 5 is assembled in the second rivet groove 211; the first rivet groove 331 and the second rivet groove 211 are in opposite positions when the left mounting base 1 and the right mounting base 2 can be in a straight line and locked. The rivet member 5 can provide strong support for the rotating device when it is subjected to pressure in the longitudinal direction, preventing the mating parts from breaking or deforming in the locked state, making the rotating structure more rigid.

[0032] Further, the limit button 3 is provided with a column 34, and one end of the spring 4 is sleeved on the column 34. The other end of the spring 4 abuts against the button groove 11 of the left mounting base. Or in some embodiments, the button groove communicates with the connection hole where the link connecting the left mounting base and the frame is connected, and the other end of the spring extends into the connection hole and abuts against the link.

[0033] Further, a slope 212 is provided on one side of the convex portion 210 close to the second limiting portion 32, which is used to prevent interference between other parts and the guiding surface 330 when the front end of the convex portion 210 slides on the guiding surface 330, resulting in the front end of the convex portion 210 detaching from the guiding surface 330. This design is beneficial to the automatic straightening and locking of the rotating structure. Preferably, the slope 212 matches the inclination angle of the guiding surface 330, that is, the slope 212 is parallel to the guiding surface 330.

[0034] Further, an arc chamfer is provided at the front end of the convex portion 210, which is used to reduce the sliding friction between the front end of the convex portion 210 and the guiding surface 330, making the sliding smoother.

[0035] As Figure 6-7 shown, the present utility model also discloses a folding frame including the rotating structure of the above folding frame, which includes a frame body. The frame body is composed of a plurality of fixed rods 8, a plurality of rotating rods 10 and a plurality of three-way connectors 7. The rotating rod 10 includes two connecting rods 6; the two connecting rods 6 are connected by a rotating structure, and the opposite ends of the two connecting rods 6 are respectively hinged to the three-way connector 7; the two ends of the fixed rod 8 are respectively inserted and fixed to the three-way connector. The two connecting rods 6 are folded or straightened by the cooperation of the first limiting portion 21 and the second limiting portion 32, so as to realize the overall folding, storage and unfolding of the frame body.

[0036] As Figure 8 shown, the present utility model discloses a rectangular frame body, which is formed by connecting four fixed rods 8 and eight rotating rods 10 end to end through eight three-way connectors 7; the fixed rods 8 are divided into two groups and are relatively distributed on the opposite sides of the frame body; the fixed rod 8 is an integral rod, and after being fixedly connected to one end relative to the three-way connector 7, no relative movement can occur. When folded and stored, the rotating rod 10 bends inward and rotates around the hinged part, tending to approach the fixed rods 8 on both sides of the frame body. After folding, the frame body forms a folded body with four fixed rods 8 on the outside and the rotating rods bent between the fixed rods. The folded body occupies less area, saves more space, and is convenient for storage and carrying.

[0037] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims

1. A rotating structure of a folding frame, characterized in that It includes a left mounting seat, a right mounting seat and a limit button; one end of the left mounting seat is hinged to the right mounting seat; a spring is further provided inside the left mounting seat; the limit button is slidably mounted on the left mounting seat and connected to the spring; the right mounting seat is provided with a first limiting portion; the limit button is provided with an operating portion, as well as a second limiting portion and an extending portion that are distributed in a stepped manner; under the elastic force of the spring, the first limiting portion and the second limiting portion can be in concave-convex fit, so that the left mounting seat and the right mounting seat are in a straight line and locked; when locked, the extending portion is located below the first limiting portion; a guiding surface that is inclined from the side of the extending portion close to the first limiting portion towards the side of the second limiting portion; when the left mounting seat and the right mounting seat are hinged and bent, the front end of the first limiting portion can slide up and down along the guiding surface.

2. The rotational structure of a folding frame according to claim 1, characterized in that The first limiting portion is provided with a convex portion with an outer arc; the second limiting portion is provided with a concave portion with an inner arc that matches the arc of the convex portion.

3. The rotational structure of a folding frame according to claim 1, characterized in that, A first rivet groove perpendicular to the sliding direction of the limit button is formed on the top surface of the extending portion; a rivet is assembled in the first rivet groove; a second rivet groove perpendicular to the sliding direction of the limit button is formed on the bottom surface of the first limiting portion; a rivet is assembled in the second rivet groove; the first rivet groove and the second rivet groove are opposite in position when the left mounting seat and the right mounting seat can be in a straight line and locked.

4. The rotational structure of a folding frame according to claim 1, wherein The limit button is provided with a column, and one end of the spring is sleeved on the column.

5. The rotational structure of a folding frame according to claim 1, characterized in that, One side of the first limiting portion close to the second limiting portion is provided with an inclined surface whose inclination angle is complementary to that of the guiding surface.

6. The rotational structure of a folding frame according to claim 2, characterized in that, The convex portion is provided with an arc chamfer at its front end.

7. A folding frame, characterized in that, It includes a rotating structure of the folding frame according to any one of the above claims 1-6.

8. A folding frame according to claim 7, characterized in that, It includes a frame body, and the frame body includes a fixed rod, a rotating rod and a tee joint; the rotating rod includes two connecting rods; the two connecting rods are connected by a rotating structure; the opposite ends of the two connecting rods are respectively hinged to the tee joint; both ends of the fixed rod are respectively inserted and fixed to the tee joint.

9. A folding frame according to claim 8, wherein The frame body is formed by four fixed rods and eight rotating rods connected end to end through eight tee joints to form a rectangular frame; the fixed rods are divided into two groups and symmetrically distributed on the opposite sides of the frame body; the rotating rods are bent inward and rotate around the hinged part, tending to approach the fixed rods.

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