Hinge assembly and cooking equipment

Abstract

The present application provides a hinge assembly and a cooking device. The hinge assembly includes a first bracket, a second bracket, a rotating shaft and a torsion spring; the first bracket and the second bracket are rotatably connected through the rotating shaft; the torsion spring is sleeved on the rotating shaft, and its two ends are respectively connected to the first bracket, and the middle part is connected to the second bracket. The hinge assembly provided by the present application can realize a protective function.

Description

Technical Field

[0001] The present application relates to the technical field of household electrical appliances, and in particular to a hinge assembly and a cooking device. Background Art

[0002] Existing devices that realize the rotation connection function through a rotating shaft have no protection function, so there are safety hazards when users rotate the device. For example, the existing upper cover of the oven is designed with a rotating shaft structure. During daily use, if the upper cover suddenly falls down, it will cause injuries to the user, which poses certain safety hazards. It is urgent to provide a rotating connection component with a protection function. Utility Model Content

[0003] The present application provides a hinge assembly and a cooking device to achieve the protection function of the hinge assembly.

[0004] The present application provides a hinge assembly and a cooking device, wherein the hinge assembly includes a first bracket, a second bracket, a rotating shaft and a torsion spring; the first bracket is rotatably connected to the second bracket via the rotating shaft; the torsion spring is sleeved on the rotating shaft, and its two ends are respectively connected to the first bracket, and its middle is connected to the second bracket.

[0005] The present application provides a cooking device, which includes the above-mentioned hinge assembly, a base and a cover. The base is provided with a cooking cavity and is connected to one of the first bracket and the second bracket; the cover is connected to the other of the first bracket and the second bracket to be rotatably connected to the base, thereby opening and closing the cooking cavity.

[0006] The beneficial effects of the present application are as follows: the hinge assembly provided by the present application includes a first bracket, a second bracket, a rotating shaft and a torsion spring; the first bracket and the second bracket are connected to each other by a rotating shaft; the torsion spring is sleeved on the rotating shaft, and its two ends are respectively connected to the first bracket, and the middle part is connected to the second bracket. The first bracket of the present application rotates relative to the second bracket or the second bracket relative to the first bracket through the rotating shaft to realize the hinge function; the first bracket and the second bracket are connected by the torsion spring sleeved on the rotating shaft, which can provide torque for the rotation between the first bracket and the second bracket to slow down the rotation speed of the first bracket and the second bracket, so that the hinge assembly can realize the protection function; in addition, the two ends of the torsion spring of the present application are connected to the first bracket, and the middle part of the torsion spring is connected to the second bracket, which can not only increase the connection stability between the first bracket and the torsion spring, but also make the torsion spring provide the first bracket and the second bracket to be more balanced, which can improve the wear caused by the unbalanced force, extend the service life of the torsion spring, thereby extending the service life of the hinge assembly and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0008] Figure 1 It is a structural schematic diagram of an embodiment of a hinge assembly provided by the present application;

[0009] Figure 2 yes Figure 1 An exploded schematic diagram of a hinge assembly of an embodiment;

[0010] Figure 3 It is a structural schematic diagram of an embodiment of a cooking device provided by the present application;

[0011] Figure 4 It is a structural schematic diagram of an embodiment of the present application when the hinge assembly hides the third bracket and the first bracket rotates to different angles relative to the second bracket;

[0012] Figure 5 for Figure 4 A schematic diagram of the corresponding states of the cover body and the base body of the embodiment. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0014] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0015] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0016] The present application provides a hinge assembly, which can be applied to a device with a rotation function or an opening and closing function, and can play a protective role. For example, a baking oven is provided with a cooking cavity and an upper cover for opening and closing the cooking cavity, and the upper cover and the baking oven body are rotatably connected by a hinge assembly to open and close the cooking cavity. The specific application device of the hinge assembly is not limited here. Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of an embodiment of a hinge assembly provided by the present application, Figure 2 yes Figure 1 Hinge assembly of an embodiment An exploded schematic diagram of an embodiment, the hinge assembly 10 includes a first bracket 110, a second bracket 120, a rotating shaft 130 and a torsion spring 140. The first bracket 110 and the second bracket 120 are rotatably connected through the rotating shaft 130; the torsion spring 140 is sleeved on the rotating shaft 130, and the two ends of the torsion spring 140 are respectively connected to the first bracket 110, and the middle part of the torsion spring 140 is connected to the second bracket 120.

[0017] Among them, the first bracket 110 and the second bracket 120 are used to connect with the parts that need to be rotatably connected, so that different parts can achieve relative rotation function through the hinge assembly 10, for example, the upper cover of the oven and the body of the oven, the first bracket 110 is connected to the upper cover of the oven or the body of the oven, and the second bracket 120 is correspondingly connected to the body of the oven or the upper cover of the oven.

[0018] The first bracket 110 of the present application rotates relative to the second bracket 120 or the second bracket 120 rotates relative to the first bracket 110 through the rotating shaft 130 to realize the hinge function; the first bracket 110 and the second bracket 120 are connected by a torsion spring 140 sleeved on the rotating shaft 130, which can provide torque for the rotation between the first bracket 110 and the second bracket 120 to slow down the rotation speed of the first bracket 110 and the second bracket 120, so that the hinge assembly 10 can realize the protection function; and when one end of the first bracket 110 rotates away from one end of the second bracket 120, the middle part of the torsion spring 140 has a pulling force on both ends of the torsion spring 140, so that the part connected to the first bracket 110 is not easy to return to the part connected to the second bracket 120, so that the hinge assembly 10 realizes the protection function; when one end of the first bracket 110 rotates close to one end of the second bracket 120, the middle part of the torsion spring 140 has a pulling force on both ends of the torsion spring 140, which can play an auxiliary opening effect. In addition, the two ends of the torsion spring 140 of the present application are connected to the first bracket 110, and the middle part of the torsion spring 140 is connected to the second bracket 120, which can not only increase the connection stability between the first bracket 110 and the torsion spring 140, but also make the torsion force provided by the torsion spring 140 to the first bracket 110 and the second bracket 120 more balanced, which can improve the wear caused by the unbalanced force, extend the service life of the torsion spring 140, thereby extending the service life of the hinge assembly 10 and enhancing the user's experience. Further, the hinge assembly 10 of the present application only includes the first bracket 110, the second bracket 120, the rotating shaft 130 and the torsion spring 140, which can realize the rotation connection and protection functions, and its structure is simple; further, it can improve the assembly speed of the hinge assembly 10; further, the hinge assembly 10 only needs to be provided with a torsion spring 140 to realize the rotation connection function, which can reduce the cost of the hinge assembly 10.

[0019] Optionally, the torsion spring 140 includes a first rotating portion 141 and a second rotating portion 142 arranged along the axial direction of the rotating shaft 130, and an intermediate portion 143 connecting the first rotating portion 141 and the second rotating portion 142; wherein the first rotating portion 141 and the second rotating portion 142 are both arranged around the rotating shaft 130, and an end of the first rotating portion 141 away from the second rotating portion 142 and an end of the second rotating portion 142 away from the first rotating portion 141 are both connected to the first bracket 110; the intermediate portion 143 is connected to the second bracket 120, wherein the first rotating portion 141 and the second rotating portion 142 are symmetrically arranged relative to the intermediate portion 143. The torsion spring 140 of the present embodiment is connected to the first bracket 110 via the first rotating portion 141 and the second rotating portion 142, and is connected to the second bracket 120 via the middle portion 143, which can increase the connection stability between the first bracket 110 and the torsion spring 140, and the first rotating portion 141 and the second rotating portion 142 are symmetrically arranged relative to the middle portion 143, which can enable the torsion spring 140 to provide a more balanced torsion force between the first bracket 110 and the second bracket 120, improve the wear caused by unbalanced force, extend the service life of the torsion spring 140, thereby extending the service life of the hinge assembly 10 and enhancing the user experience.

[0020] Optionally, the first rotating portion 141, the second rotating portion 142 and the middle portion 143 are integrally provided, that is, the torsion spring 140 is integrally provided. Therefore, the hinge assembly 10 of this embodiment includes only one torsion spring 140, which can reduce the components of the hinge assembly 10 and reduce costs.

[0021] Optionally, the second bracket 120 is provided with a hook portion 122, and the middle portion 143 of the torsion spring 140 forms a first bent portion, and the first bent portion is buckled with the hook portion 122 to connect the torsion spring 140 to the second bracket 120. In this embodiment, the middle portion 143 of the torsion spring 140 is provided with a first bent portion, and the second bracket 120 is provided with a hook portion 122, so that the connection between the middle portion 143 and the second bracket 120 is simple, stable, and convenient, which can improve the assembly convenience of the hinge assembly 10.

[0022] Optionally, a first extension portion 145 and a second bending portion 144 connected to the first extension portion 145 are respectively formed at both ends of the torsion spring 140, the first extension portion 145 is extended along the radial direction of the rotating shaft 130, the second bending portion 144 is extended along the axial direction of the rotating shaft 130 and away from the middle part of the torsion spring 140, and the first bracket 110 is provided with connecting holes 112 arranged at intervals along the axial direction of the rotating shaft 130, and the axial direction of the connecting holes 112 is arranged parallel to the axial direction of the rotating shaft 130; the two second bending portions 144 are respectively embedded in the two connecting holes 112. In this embodiment, two connecting holes 112 are arranged axially at intervals on the first bracket 110, and second bending portions 144 are formed at both ends of the torsion spring 140. When the second bending portion 144 is embedded in the connecting hole 112, the connection between the first bracket 110 and the torsion spring 140 is achieved. At the same time, the second bending portion 144 is embedded in the connecting hole 112 to enhance the connection stability between the torsion spring 140 and the first bracket 110. Furthermore, the connection method is simple and convenient for assembling the first bracket 110 and the torsion spring 140. In addition, the first extension portion 145 enables the second bending portion 144 to be spaced apart from the rotating shaft 130, which facilitates the installation of the second bending portion 144 and the connecting hole 112.

[0023] Optionally, the two connecting holes 112 are coaxially arranged, that is, the distances between the two ends of the torsion spring 140 and the connecting hole 112 are equal, so that the force of the torsion spring 140 is balanced, which can improve the wear caused by unbalanced force and extend the service life of the torsion spring 140, thereby extending the service life of the hinge assembly 10 and enhancing the user experience.

[0024] Optionally, the hinge assembly 10 further includes a third bracket 150, which is rotatably connected to the rotating shaft 130 and is at least partially disposed between the first bracket 110 and the second bracket 120 along the circumference of the rotating shaft 130, so that when the first bracket 110 rotates relative to the second bracket 120 to a preset angle, the first bracket 110 and the second bracket 120 respectively abut against opposite sides of the third bracket 150. In the present application, the first bracket 110 can rotate relative to the second bracket 120 in a first direction, or can rotate relative to the second bracket 120 in a second direction opposite to the first direction, wherein the torsion spring 140 provides a torsion force that prevents the first bracket 110 from rotating relative to the second bracket 120 in the first direction. In the present application, when the first bracket 110 rotates relative to the second bracket 120 in the second direction to a preset angle, opposite sides of the third bracket 150 abut against the first bracket 110 and the second bracket 120 respectively, and at this time, the third bracket 150 can prevent the first bracket 110 from continuing to rotate in the second direction.

[0025] The hinge assembly 10 of this embodiment is provided with a third bracket 150. When the first bracket 110 rotates to a preset angle relative to the second bracket 120 along the second direction, that is, when the first bracket 110 rotates to a preset angle relative to the second bracket 120, the opposite sides of the third bracket 150 respectively abut against the first bracket 110 and the second bracket 120. The third bracket 150 can limit the angle between the first bracket 110 and the second bracket 120 to remain at the preset angle, thereby preventing the first bracket 110 from continuing to rotate along the second direction, so that the hinge assembly 10 further realizes the protection function.

[0026] For example, the first bracket 110 is connected to the upper cover of the oven or the body of the oven, and the second bracket 120 is correspondingly connected to the body of the oven or the upper cover of the oven. When the upper cover and the body are arranged along the direction of gravity, when the first bracket 110 rotates along the first direction relative to the second bracket 120, the upper cover closes the body; when the first bracket 110 rotates along the second direction relative to the second bracket 120, the upper cover opens the body. When the first bracket 110 rotates to a preset angle relative to the second bracket 120, the upper cover and the body maintain a stable angle. Therefore, the upper cover will not hit the side away from the body, so that the hinge assembly 10 can achieve a protective effect.

[0027] Optionally, the first bracket 110, the second bracket 120 and the third bracket 150 are all arranged in a U-shape, the two side walls of the first bracket 110 are respectively provided with a connecting hole 112 and a first shaft hole 111, the two side walls of the second bracket 120 are respectively provided with a second shaft hole 121, the bottom wall of the second bracket 120 is connected to the middle of the torsion spring 140, and the two side walls of the third bracket 150 are respectively provided with a third shaft hole 151; the rotating shaft 130 is respectively embedded in the first shaft hole 111, the second shaft hole 121 and the third shaft hole 151, and the second shaft hole 121 on the same side is located between the first shaft hole 111 and the third shaft hole 151, and the third shaft hole 151 is arranged close to the end of the rotating shaft 130. Among them, the first rotating portion 141 and the second rotating portion 142 are located between the two first shaft holes 111. The first bracket 110, the second bracket 120 and the third bracket 150 of the present embodiment are arranged in a U-shape, which can provide installation space for the torsion spring 140 and the rotating shaft 130, thereby reducing the size of the hinge assembly 10; in addition, the bottom wall of the U-shaped first bracket 110 and the second bracket 120 can be used to connect with the device. Furthermore, the two side walls of the U-shaped first bracket 110, the second bracket 120 and the third bracket 150 are provided with shaft holes to realize the connection with the rotating shaft 130, and the first bracket 110 is connected to the two ends of the torsion spring 140 through the connecting hole 112. Therefore, the first bracket 110, the second bracket 120 and the third bracket 150 of the present embodiment have a simple structure and are easy to process.

[0028] In other embodiments, the first shaft hole 111 on the same side is located between the second shaft hole 121 and the third shaft hole 151 , and the third shaft hole 151 is disposed close to the end of the rotating shaft 130 . The first rotating portion 141 and the second rotating portion 142 are located between the two second shaft holes 121 .

[0029] Optionally, a hook portion 122 is formed at one end of the bottom wall of the U-shaped second bracket 120 away from the rotating shaft 130, and the opening between the hook portion 122 and the bottom wall is located on the side of the second bracket 120 where the side wall is provided, so that the hook portion 122 is accommodated in the U-shaped space of the second bracket 120 to reduce the size of the hinge assembly 10.

[0030] Optionally, the hinge assembly 10 further includes a limiting portion 170 and a buckle 160, wherein the limiting portion 170 is disposed at the end of one end of the rotating shaft 130; the buckle 160 is detachably disposed at the other end of the rotating shaft 130; the first bracket 110, the second bracket 120 and the torsion spring 140 are located between the limiting portion 170 and the buckle 160 to limit the axial movement of the first bracket 110, the second bracket 120 and the torsion spring 140 along the rotating shaft 130. The hinge assembly 10 of this embodiment further includes a limiting portion 170 and a buckle 160, so that the first bracket 110, the second bracket 120 and the torsion spring 140 are limited in the axial direction of the rotating shaft 130 by the limiting portion 170 and the buckle 160, so as to prevent the first bracket 110, the second bracket 120 or the torsion spring 140 from slipping off the rotating shaft 130, thereby improving the stability of the hinge assembly 10.

[0031] The limiting portion 170 may be detachably mounted on one end of the rotating shaft 130 , or the limiting portion 170 may be formed on one end of the rotating shaft 130 .

[0032] Optionally, a through hole is provided at the other end of the rotating shaft 130, and the axial direction of the through hole is arranged to intersect with the axial direction of the rotating shaft 130. The buckle 160 includes a penetration portion 161 and a third bending portion 162, and one end of the penetration portion 161 is penetrated through the through hole; one end of the third bending portion 162 is connected to the other end of the penetration portion 161, and the other end of the third bending portion 162 is bent and extended toward one end of the penetration portion 161. It can be known that when the buckle 160 is installed on the other end of the rotating shaft 130, the installation of the buckle 160 can be completed by directly inserting the penetration portion 161 into the through hole. Therefore, the buckle 160 of this embodiment is easy to install; in addition, the buckle 160 is also provided with a third bending portion 162, and the other end of the third bending portion 162 is bent and extended toward one end of the penetration portion 161, that is, the other end of the third bending portion 162 and one end of the penetration portion 161 can form a narrow opening, which can reduce the probability of the buckle 160 falling off the rotating shaft 130.

[0033] In other embodiments, the buckle 160 may also be configured in a U-shape.

[0034] Optionally, the first bracket 110 and the second bracket 120 are further provided with mounting holes for installation, wherein the number of mounting holes on each bracket can be set according to the size of the bracket or the weight of the applied device, etc. For example, in order to improve the stability of the connection between the hinge assembly 10 and the outside, two mounting holes are respectively provided on the first bracket 110 and the second bracket 120.

[0035] The present application provides a cooking device, referring to Figure 3 , Figure 3 2 is a schematic diagram of a cooking device according to an embodiment of the present application, wherein the cooking device comprises a base 22, a cover 21 and a hinge assembly 23, wherein the base 22 is provided with a cooking cavity and is connected to one of the first bracket and the second bracket; the cover 21 is connected to the other of the first bracket and the second bracket to be rotatably connected to the base 22, thereby opening and closing the cooking cavity. The hinge assembly 23 is any one of the hinge assemblies in the above-mentioned hinge assembly embodiments.

[0036] The cooking device 20 provided in the present application includes a base 22, a cover 21 and a hinge assembly 23. The base 22 is provided with a cooking cavity and is connected to one of the first bracket and the second bracket; the cover 21 is connected to the other of the first bracket and the second bracket to be rotatably connected to the base 22, thereby opening and closing the cooking cavity. Specifically, the hinge assembly includes a first bracket, a second bracket, a rotating shaft and a torsion spring; the first bracket is rotatably connected to the second bracket through the rotating shaft; the torsion spring is sleeved on the rotating shaft, and its two ends are respectively connected to the first bracket, and the middle part is connected to the second bracket. When the cover 21 of the present application rotates relative to the base 22 to close the cooking cavity, that is, when one end of the first bracket rotates away from one end of the second bracket, the middle part of the torsion spring has a pulling force on both ends of the torsion spring, so that the part connected to the first bracket is not easy to return to the part connected to the second bracket, that is, the cover 21 is subjected to the pulling force from the torsion spring, and the situation where the cover 21 suddenly hits the base 22 can be improved, which can improve the safety of the cooking equipment and provide the user with a better experience; in addition, when the cover 21 rotates relative to the base 22 to open the cooking cavity, that is, when one end of the first bracket rotates close to one end of the second bracket, the cover 21 is heavy, which makes it difficult to open the cover, and the middle part of the torsion spring has a pulling force on both ends of the torsion spring, which can assist in opening the cover 21.

[0037] Optionally, the hinge assembly 23 further includes a third bracket, which is rotatably connected to the rotating shaft and is at least partially disposed between the first bracket and the second bracket along the circumference of the rotating shaft, so that when the first bracket rotates to a preset angle relative to the second bracket in a direction away from the cooking cavity, the first bracket and the second bracket respectively abut against opposite sides of the third bracket. When the first bracket rotates to a preset angle relative to the second bracket in a direction away from the cooking cavity, the cover body 21 and the base body 22 are maintained at a stable angle at this time, so the cover body 21 will not hit the side away from the base body 22, which can further improve the safety of the cooking device 20.

[0038] See also Figure 4 and Figure 5 , Figure 4 is a structural schematic diagram of an embodiment of the present application when the hinge assembly hides the third bracket and the first bracket rotates to different angles relative to the second bracket. Figure 5 for Figure 4 Schematic diagram of the state of the corresponding cover and base of the embodiment. Specifically, Figure 4 (a) is a structural schematic diagram of an embodiment when the hinge assembly hides the third bracket and the first bracket rotates relative to the second bracket to a preset angle in a direction away from the cooking cavity. Figure 4 (b) is a schematic structural diagram of an embodiment when the hinge assembly hides the third bracket and the first bracket is rotated to another angle relative to the second bracket toward the cooking cavity. Figure 5 (a) Figure 4 (a) Schematic diagram of the corresponding state of the cover body and the base body, Figure 5 (b) Figure 4 (b) A schematic diagram of the corresponding state of the cover body and the base body, where the cover body 21 is Figure 5 The state (a) is state A, the cover 21 is in Figure 5 The state (b) is state B. When the cover body 21 rotates from state A to state B, the torsion spring is subjected to a torsional moment when it is twisted. The torsional moment is opposite to the gravity moment G, which can reduce the gravity moment and reduce the possibility of the cover body 21 injuring the user.

[0039] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A hinge assembly, characterized in that: The hinge assembly comprises: First bracket; Second bracket; A rotating shaft, through which the first bracket and the second bracket are rotatably connected; The torsion spring is sleeved on the rotating shaft, and its two ends are respectively connected to the first bracket, and its middle part is connected to the second bracket.

2. The hinge assembly according to claim 1, characterized in that: The torsion spring includes a first rotating part and a second rotating part arranged along the axial direction of the rotating shaft, and an intermediate part connecting the first rotating part and the second rotating part; Wherein, the first rotating part and the second rotating part are both arranged around the rotating shaft, and one end of the first rotating part away from the second rotating part and one end of the second rotating part away from the first rotating part are both connected to the first bracket; the middle part is connected to the second bracket; The first rotating portion and the second rotating portion are symmetrically arranged relative to the middle portion.

3. The hinge assembly according to claim 2, characterized in that: The second bracket is provided with a hook portion, the middle portion forms a first bent portion, and the first bent portion is buckled with the hook portion to connect the torsion spring with the second bracket.

4. The hinge assembly according to claim 1, characterized in that: The torsion spring has a first extension portion and a second bent portion connected to the first extension portion at both ends, the first extension portion is extended along the radial direction of the rotating shaft, the second bent portion is extended along the axial direction of the rotating shaft and away from the middle portion, the first bracket is provided with connection holes arranged at intervals along the axial direction of the rotating shaft, and the axial direction of the connection holes is arranged parallel to the axial direction of the rotating shaft; The two second bending portions are respectively embedded in the two connecting holes.

5. The hinge assembly according to claim 4, characterized in that: The hinge assembly also includes: The third bracket is rotatably connected to the rotating shaft and is at least partially arranged between the first bracket and the second bracket along the circumference of the rotating shaft, so that when the first bracket is rotated to a preset angle relative to the second bracket, the first bracket and the second bracket respectively abut against opposite sides of the third bracket.

6. The hinge assembly according to claim 5, characterized in that: The first bracket, the second bracket and the third bracket are all arranged in a U shape, the two side walls of the first bracket are respectively provided with a connecting hole and a first shaft hole, the two side walls of the second bracket are respectively provided with a second shaft hole, the bottom wall of the second bracket is connected to the middle part of the torsion spring, and the two side walls of the third bracket are respectively provided with a third shaft hole; The rotating shaft is respectively embedded in the first shaft hole, the second shaft hole and the third shaft hole, and the second shaft hole on the same side is located between the first shaft hole and the third shaft hole, and the third shaft hole is arranged close to the end of the rotating shaft.

7. The hinge assembly according to any one of claims 1 to 6, characterized in that: The hinge assembly also includes: A limiting portion, provided at an end portion of one end of the rotating shaft; A buckle, detachably disposed at the other end of the rotating shaft; The first bracket, the second bracket and the torsion spring are located between the limiting portion and the buckle to limit the axial movement of the first bracket, the second bracket and the torsion spring along the rotating shaft.

8. The hinge assembly according to claim 7, characterized in that: A through hole is provided at the other end of the rotating shaft, and the axial direction of the through hole intersects with the axial direction of the rotating shaft, and the buckle comprises: A penetration portion, one end of which is penetrated through the through hole; The third bending portion has one end connected to the other end of the penetration portion, and the other end is bent and extended toward the one end of the penetration portion.

9. A cooking device, characterized in that: include: The hinge assembly according to any one of claims 1 to 8; A base body, provided with a cooking cavity, and connected to one of the first bracket and the second bracket; The cover body is connected to the other of the first bracket and the second bracket so as to be rotatably connected to the base body so as to open and close the cooking cavity.

10. The cooking device according to claim 9, characterized in that The hinge assembly also includes: The third bracket is rotatably connected to the rotating shaft and is at least partially arranged between the first bracket and the second bracket along the circumference of the rotating shaft, so that when the first bracket is rotated to a preset angle relative to the second bracket in a direction away from the cooking cavity, the first bracket and the second bracket respectively abut against opposite sides of the third bracket.

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