Device with a cover

Abstract

The present invention relates to the technical field of household appliances, and in particular to a device having a cover, comprising a main structure, a cover hinged to the main structure via a hinge shaft, and a drive assembly capable of driving the cover to move toward the main structure when the cover is covered on the main structure. By providing the drive assembly, when the cover is covered on the main structure, the drive assembly drives the cover to move toward the main structure, thereby reducing the gap between the cover and the main structure and making the overall appearance more beautiful. During processing, even if the precision of the parts constituting the device having the cover is low, the gap between the cover and the main structure can be made smaller, thereby reducing the precision requirements for the parts.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a device with a cover. Background Art

[0002] In the prior art electric rice cookers, the lid and the body are usually connected by a hinge shaft, so that the lid can be opened and closed. To accommodate the assembly errors between the multiple parts and to meet the requirements of opening and closing the lid, a gap of about 1 mm is left between the lid and the body.

[0003] Because rice cookers are assembled from multiple parts, component tolerances during production can affect the gap between the lid and the body. A larger gap can affect the appearance, while a smaller gap can prevent the cooker from opening and closing properly. Consequently, the precision required for these components is extremely high, increasing the manufacturing complexity and leading to a high scrap rate, which can be a significant challenge in production. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the electric rice cooker in the prior art that the precision requirements for parts are high and the manufacturing difficulty of parts is increased, thereby providing a device with a cover body that can reduce the precision requirements for parts.

[0005] To solve the above technical problems, the present invention provides a device with a cover, comprising a main structure, a cover hinged to the main structure via a hinge axis, and further comprising:

[0006] The driving assembly can drive the cover to move toward the main structure when the cover is covered on the main structure.

[0007] Optionally, a first strip hole is provided on the main structure, and the angle between the extension direction of the long axis diameter of the first strip hole and the vertical direction is A, 0°≤A<90°, the hinge shaft is provided on the cover body, and the hinge shaft is passed through the first strip hole, and the driving component can move the hinge shaft in the first strip hole toward the direction close to the main structure.

[0008] Optionally, the driving assembly includes a first elastic member, the first end of which is fixed to the main structure, the second end of which is in contact with the hinge shaft, and the elastic force of the first elastic member can drive the hinge shaft to move in the first strip hole toward the direction close to the main structure.

[0009] Optionally, a mounting portion is provided on the hinge shaft, and the second end of the first elastic member abuts against the mounting portion.

[0010] Optionally, the driving assembly further includes a first push rod, the first end of the first push rod is fixedly connected to the second end of the first elastic member, and the second end of the first push rod is suitable for abutting against the hinge shaft.

[0011] Optionally, a U-shaped groove is provided at the second end of the first push rod, and the U-shaped groove abuts against the hinge shaft.

[0012] Optionally, the first end of the first elastic member is fixed to the side of the main structure, and the second end of the first elastic member abuts against the hinge shaft.

[0013] Optionally, a first column structure is provided on the cover body, and the driving assembly includes a second elastic member, a first end of the second elastic member is fixed on the main structure, and a second end of the second elastic member abuts against the first column structure, and the elastic force of the second elastic member can enable the first column structure to drive the cover body to move toward the direction close to the main structure.

[0014] Optionally, the driving assembly further includes a second push rod, a first end of the second push rod is fixedly connected to the second end of the second elastic member, and the second end of the second push rod abuts against the first column structure.

[0015] Optionally, a U-shaped groove is provided at the second end of the second push rod, and the U-shaped groove abuts against the first column structure.

[0016] Optionally, the driving assembly includes a torsion spring, and the elastic force of the torsion spring can enable the hinge shaft to move in the first strip-shaped hole toward the direction approaching the main structure.

[0017] Optionally, the body of the torsion spring is arranged on the hinge shaft, a first positioning structure is provided on the main structure, and both ends of the torsion spring are fixed on the first positioning structure so that the body of the torsion spring has an elastic force in a direction close to the main structure.

[0018] Optionally, the first positioning structure includes two positioning slots, and the two positioning slots are used to define two ends of the torsion spring.

[0019] Optionally, a second column structure and a second positioning structure are provided on the main structure, the body of the torsion spring is sleeved on the second column structure, the first end of the torsion spring is fixed on the second positioning structure, and the second end of the torsion spring is pressed on the hinge shaft.

[0020] Optionally, the driving assembly includes a magnetic structure, and the magnetic force of the magnetic structure can enable the hinge shaft to move in the first strip-shaped hole toward the direction approaching the main structure.

[0021] Optionally, the magnetic structure includes:

[0022] The first magnet is fixed on the main structure and located below the hinge shaft, and the first magnet can generate suction force on the hinge shaft.

[0023] Optionally, the magnetic structure includes:

[0024] The second magnet is fixed on the main structure and located above the hinge shaft. At least one side of the hinge shaft opposite to the second magnet is magnetic and forms a repulsive force with the second magnet.

[0025] Optionally, a second strip hole is provided on the cover body, the hinge shaft is provided on the main structure, and the hinge shaft is provided in the second strip hole, and the driving assembly is used to drive the cover body to move relative to the hinge shaft toward the direction close to the main structure.

[0026] Optionally, the driving assembly includes a third elastic member, a first end of the third elastic member is connected to the hinge shaft, and a second end of the third elastic member abuts against the cover body.

[0027] Optionally, the drive assembly further includes a third push rod;

[0028] The first end of the third push rod is connected to the second end of the third elastic member, and the second end of the third push rod abuts against the cover body; or the first end of the third push rod abuts against the hinge shaft, and the second end of the third push rod is connected to the first end of the third elastic member.

[0029] Optionally, the device having a cover is an electric rice cooker.

[0030] The technical solution of the present invention has the following advantages:

[0031] 1. The cover device provided by the present invention utilizes a drive assembly to drive the cover toward the main structure when the cover is closed over the main structure, thereby reducing the gap between the cover and the main structure and enhancing the overall appearance. During machining, even if the precision of the components constituting the cover device is relatively low, the gap between the cover and the main structure can be minimized, thereby reducing the precision requirements for the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A front cross-sectional view of a device with a cover provided in Example 1 of the present invention;

[0034] Figure 2 for Figure 1 An enlarged view of point A is shown;

[0035] Figure 3 It is a left sectional view of the device with a cover provided in Example 1 of the present invention;

[0036] Figure 4 A partially enlarged front sectional view of the device with a cover provided in Example 2 of the present invention;

[0037] Figure 5 A partially enlarged left side sectional view of a device with a cover provided in one embodiment of Example 3 of the present invention;

[0038] Figure 6 A partially enlarged front cross-sectional view of a device with a cover provided in an alternative embodiment of Example 3 of the present invention;

[0039] Figure 7 A partially enlarged front sectional view of the device with a cover provided in Example 4 of the present invention;

[0040] Figure 8 A partially enlarged front sectional view of the device with a cover provided in Example 5 of the present invention;

[0041] Figure 9 A partial cross-sectional view of a support ring of a device with a cover provided in Example 5 of the present invention;

[0042] Figure 10 A cross-sectional view of a cover body of a device having a cover body provided in Example 5 of the present invention;

[0043] Figure 11 A partially enlarged front cross-sectional view of a device having a cover provided in one embodiment of Example 6 of the present invention;

[0044] Figure 12 for Figure 11 A schematic diagram of a structure in which a torsion spring is provided on the support ring;

[0045] Figure 13 A partially enlarged front cross-sectional view of a device having a cover provided in an alternative embodiment of Example 6 of the present invention;

[0046] Figure 14 for Figure 13 A schematic diagram of a structure in which a torsion spring is provided on the support ring;

[0047] Figure 15 A partially enlarged front cross-sectional view of a device having a cover provided in an alternative embodiment of Example 6 of the present invention;

[0048] Figure 16 for Figure 15 A schematic diagram of a structure in which a torsion spring is provided on the support ring;

[0049] Figure 17 A left side sectional view of a device having a cover provided in one embodiment of Example 7 of the present invention;

[0050] Figure 18 A left side sectional view of a device with a cover provided in an alternative embodiment of Example 7 of the present invention;

[0051] Figure 19 A partial cross-sectional view of a device with a cover provided in Example 8 of the present invention;

[0052] Figure 20 for Figure 19 Schematic diagram of the structure of the cover body.

[0053] Description of reference numerals:

[0054] 1. Pot body; 2. Support ring; 3. Pot lid; 4. Hinge shaft; 5. First elastic member; 6. First push rod; 7. First strip hole; 9. First column structure; 10. Second elastic member; 11. Second push rod; 12. Third strip hole; 13. Torsion spring; 14. First positioning slot; 15. Second column structure; 16. Second positioning structure; 17. Second positioning slot; 18. First magnet; 19. Second magnet; 20. Second strip hole; 21. Third elastic member. DETAILED DESCRIPTION

[0055] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0058] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0059] Example 1

[0060] In the prior art electric rice cookers, the lid and the body are usually connected by a hinge shaft, so that the lid can be opened and closed. To accommodate the assembly errors between the multiple parts and to meet the requirements of opening and closing the lid, a gap of about 1 mm is left between the lid and the body.

[0061] Because rice cookers are assembled from multiple parts, component tolerances during production can affect the gap between the lid and the body. A larger gap can affect the appearance, while a smaller gap can prevent the lid from opening and closing properly. Consequently, the precision required for these components is extremely high, increasing the manufacturing complexity and leading to a high scrap rate, which can be a significant challenge in production.

[0062] To this end, this embodiment provides a device with a cover, which can reduce the precision requirements for parts. The device with a cover can be an electric rice cooker, an electric pressure cooker, a pressure cooker, an electric lunch box, an electric pressure cooker, etc. In one embodiment, Figure 1 As shown, the device with a cover comprises a main structure, a cover hinged to the main structure via a hinge shaft 4, and a drive assembly. When the device with a cover is an electric rice cooker, the main structure is the rice cooker body 1 and the cover is the rice cooker cover 3.

[0063] The driving assembly can drive the cover to move toward the main structure when the cover is covered on the main structure.

[0064] In this embodiment, a drive assembly is provided to drive the cover toward the main structure when the cover is closed over the main structure, thereby reducing the gap between the cover and the main structure, thereby enhancing the overall appearance. During manufacturing, even if the precision of the components constituting the device having the cover is relatively low, the gap between the cover and the main structure can be reduced, thereby reducing the precision requirements of the components.

[0065] On the basis of the above embodiment, in a preferred embodiment, as Figure 2 and Figure 3 As shown, a first strip hole 7 is provided on the main structure. The angle between the major axis diameter of the first strip hole 7 and the extension direction is A, 0°≤A<90°. The hinge shaft 4 is provided on the cover body, and the hinge shaft 4 is passed through the first strip hole 7. The driving assembly can move the hinge shaft 4 in the first strip hole 7 in a direction close to the main structure. In this embodiment, the movement of the hinge shaft 4 in the direction close to the main structure under the drive assembly will drive the cover body to move in the direction close to the main structure, thereby reducing the gap between the cover body and the main structure. The provision of the first strip hole 7 can guide the movement of the hinge shaft 4 and avoid the up and down floating of the cover body. At the same time, compared with the processing of circular shaft holes in the prior art, the processing of the first strip hole 7 on the main structure can greatly reduce the precision requirements of the parts.

[0066] Specifically, when A is 0°, the major axis diameter of the first strip-shaped hole extends in the vertical direction, and when 0°<A<90°, the first strip-shaped hole is arranged at an inclination.

[0067] The hinge shaft 4 can be fixedly arranged on the cover body, or an axis hole can be provided on the cover body, the axis hole is adapted to the shape of the hinge shaft 4, and the hinge shaft is passed through the axis hole and the first strip hole 7.

[0068] On the basis of the above embodiment, in a preferred embodiment, as Figure 2 As shown, the drive assembly includes a first elastic member 5, the first end of the first elastic member 5 is fixed to the main structure, and the second end of the first elastic member 5 abuts against the hinge shaft 4. The elastic force of the first elastic member 5 can drive the hinge shaft 4 to move in the first strip hole 7 toward the main structure. In this embodiment, during installation, the first elastic member 5 is elastically deformed, and the elastic force of the first elastic member 5 can drive the hinge shaft 4 to move in the first strip hole 7 toward the main structure. During the movement, the hinge shaft 4 will drive the cover body to move toward the main structure, thereby reducing the gap between the cover body and the main structure. The appearance is beautiful, the structure of the drive assembly is simple, and the cost is low. It should be noted that the abutment in this embodiment includes direct abutment and indirect abutment.

[0069] On the basis of the above embodiment, in a preferred embodiment, as Figure 2 As shown, the drive assembly further includes a first push rod 6, a first end of which is connected to the second end of the first elastic member 5, and the second end of the first push rod 6 is adapted to abut against the hinge shaft 4. In this embodiment, during installation, the first elastic member 5 is elastically deformed, and the elastic force of the first elastic member 5 drives the first push rod 6 toward the main structure. The movement of the first push rod 6 toward the main structure drives the cover body toward the main structure, thereby reducing the gap between the cover body and the main structure.

[0070] On the basis of the above embodiment, in a preferred embodiment, further reference is made to Figure 2 The second end of the first push rod 6 is provided with a U-shaped groove, which abuts the hinge shaft 4. In this embodiment, the provision of the U-shaped groove facilitates the abutment of the first push rod 6 against the hinge shaft 4, thereby applying pressure to the hinge shaft 4. In other alternative embodiments, the U-shaped groove may not be provided, and the second end of the first push rod 6 may abut against the hinge shaft 4.

[0071] Based on the above embodiment, in a preferred embodiment, the first elastic member 5 is a spring, a first end of the first elastic member 5 is fixed to the main structure and located above the hinge shaft 4, and a second end of the first elastic member 5 abuts against the hinge shaft 4. The length of the first elastic member 5 extends in the vertical direction and is vertically arranged above the hinge shaft 4.

[0072] Based on the above embodiment, in a preferred embodiment, the device having a lid is an electric rice cooker. In this embodiment, the main structure is the rice cooker body structure, and the lid is the rice cooker lid 3. The rice cooker body structure includes a rice cooker body 1 and a support ring 2 for supporting the pot body. The drive assembly is disposed within the support ring 2.

[0073] In this embodiment, when the pot lid 3 and the pot body 1 are closing, the first elastic member 5 and the first push rod 6 push the hinge shaft 4 downward, and the hinge shaft 4 drives the pot lid 3 to sink, thereby achieving zero gap assembly between the pot lid 3 and the pot body 1, and reducing the product's requirements for parts accuracy.

[0074] Example 2

[0075] This embodiment differs from the previous embodiment in that the first push rod 6 is omitted, and the first elastic member 5 is directly connected to and abuts the hinge shaft 4. In this embodiment, during installation, the first elastic member 5 is elastically deformed, and the elastic force of the first elastic member 5 drives the hinge shaft 4 to move within the first strip hole 7 toward the main structure. During this movement, the hinge shaft 4 also drives the cover body toward the main structure, thereby reducing the gap between the cover body and the main structure. This results in an aesthetically pleasing appearance, a simple drive assembly structure, and low cost.

[0076] In one embodiment, when the device having a cover is an electric rice cooker, Figure 4 As shown, the first end of the first elastic member 5 is fixed to the support ring 2 and is located above the hinge shaft 4, and the second end of the first elastic member 5 presses against the hinge shaft 4. In this embodiment, the first elastic member 5 pushes the hinge shaft 4 downward, and the hinge shaft 4 drives the lid 3 downward, achieving zero clearance between the lid 3 and the pot body 1.

[0077] In one embodiment, in order to facilitate the abutment between the first elastic member 5 and the hinge shaft 4, as shown in FIG. Figure 4 As shown, a mounting portion is provided on the hinge shaft, and the second end of the first elastic member 5 abuts against the mounting portion.

[0078] In one embodiment, the mounting portion is a stepped surface provided at the end of the hinge shaft 4, and the second end of the first elastic member 5 presses against the stepped surface. In other alternative embodiments, the mounting portion is a groove provided on the hinge shaft 4, and the second end of the first elastic member 5 presses into the groove.

[0079] In one embodiment, the first elastic member 5 is a spring. In this embodiment, the spring pushes the hinge shaft 4 downward, and the hinge shaft 4 drives the pot cover 3 to sink downward, thereby achieving zero clearance between the pot cover 3 and the pot body 1.

[0080] Example 3

[0081] The difference between this embodiment and embodiment 1 and embodiment 2 is that the first elastic member 5 is made of silicone.

[0082] In one embodiment, the first end of the silica gel is fixed to the main structure, the second end of the silica gel is connected to the second end of the first push rod 6, and the second end of the first push rod 6 is in contact with the hinge shaft 4. Figure 5 As shown, the first end of the silicone rubber is fixed to the support ring 2 and positioned above the hinge shaft 4. The second end of the silicone rubber is connected to the first end of the first push rod 6, and the second end of the first push rod 6 abuts the hinge shaft 4. In this embodiment, under the action of the silicone rubber, the first push rod 6 pushes the hinge shaft 4 downward, and the hinge shaft 4 drives the lid 3 downward, achieving zero clearance between the lid 3 and the pot body 1.

[0083] In an alternative embodiment, the first push rod 6 is not provided, the first end of the silica gel is fixed to the main structure, and the second end of the silica gel directly contacts the hinge shaft 4. Figure 6As shown, the first end of the silicone rubber is fixed to the support ring 2 and positioned above the hinge shaft 4, while the second end of the silicone rubber directly abuts the hinge shaft 4. In this embodiment, to facilitate the abutment of the second end of the silicone rubber with the hinge shaft 4, a mounting portion is provided on the hinge shaft 4. The second end of the silicone rubber abuts the mounting portion. Specifically, the mounting portion is a groove, into which the second end of the silicone rubber abuts. In this embodiment, the silicone rubber pushes the hinge shaft 4 downward, which in turn drives the lid 3 downward, achieving zero clearance between the lid 3 and the pot body 1.

[0084] Example 4

[0085] The difference between this embodiment and embodiment 1 is that the first end of the first elastic member 5 is fixed to the side of the main structure, and the second end of the first elastic member 5 is in contact with the hinge shaft 4 .

[0086] Specifically, the first elastic member 5 is a spring sheet or a spring block.

[0087] In one embodiment, when the device having a cover is an electric rice cooker, Figure 7 As shown, the first end of the spring clip is fixed to the side of the support ring 2, and the second end of the spring clip directly abuts the hinge shaft 4. In this embodiment, the spring clip pushes the hinge shaft 4 downward, and the hinge shaft 4 drives the lid 3 downward, achieving zero clearance between the lid 3 and the pot body 1.

[0088] The spring piece may specifically be a plastic elastic pressing piece.

[0089] In an alternative embodiment, the device having a lid body may also include a first push rod 6, with the first end of the spring piece fixed to the top of the support ring 2, the second end of the spring piece fixedly connected to the first end of the first push rod 6, and the second end of the first push rod 6 abutting against the hinge shaft 4. In this embodiment, under the action of the spring piece, the first push rod 6 pushes the hinge shaft 4 downward, and the hinge shaft 4 drives the pot lid 3 downward, achieving zero clearance between the pot lid 3 and the pot body 1.

[0090] Example 5

[0091] The difference between this embodiment and embodiment 1 is that, in one embodiment, Figure 8 and Figure 10As shown, the cover is provided with a first column structure 9, and the driving assembly includes a second elastic member 10. The first end of the second elastic member 10 is fixed to the main structure, and the second end of the second elastic member 10 abuts against the first column structure 9. The elastic force of the second elastic member 10 can cause the first column structure 9 to drive the cover to move in a direction close to the main structure. In this embodiment, when the cover is placed on the main structure, the elastic force of the second elastic member 10 pushes the first column structure 9 in a direction close to the main structure, and the first column structure 9 drives the cover to move in a direction close to the main structure. During the movement of the cover, the hinge shaft 4 is driven to move in the first strip hole 7 in a direction close to the main structure, thereby achieving zero gap assembly between the main structure and the cover.

[0092] In a preferred embodiment, the first column structure 9 is parallel to the hinge axis 4 .

[0093] On the basis of the above embodiment, in a preferred embodiment, as Figure 8 As shown, the driving assembly further includes a second push rod 11, a first end of the second push rod 11 being connected to the second end of the second elastic member 10, and a second end of the second push rod 11 being in contact with the first column structure 9. In this embodiment, when the cover is placed on the main structure, under the elastic force of the second elastic member 10, the second push rod 11 pushes the first column structure 9 toward the main structure, and the first column structure 9 drives the cover to move toward the main structure. During the movement of the cover, the hinge shaft 4 moves in the first strip hole 7 toward the main structure, thereby achieving zero clearance in the assembly of the main structure and the cover.

[0094] In one embodiment, the device with a cover is an electric rice cooker, the driving assembly is provided on the second support ring 2, the first end of the second elastic member 10 is fixed on the support ring 2 and is located above the first column structure 9, the second end of the second elastic member 10 abuts against the first end of the second push rod 11, and the second end of the second push rod 11 abuts against the first column structure 9. Figure 9 As shown, the first column structure 9 passes through the support ring 2, so a third strip hole 12 is also provided on the support ring 2. During the closing process of the pot lid 3 and the pot body 1, the second elastic member 10 and the second push rod 11 push the first column structure 9 downward, and the pot lid 3 drives the hinge shaft 4 to sink, thereby achieving zero gap assembly between the pot lid 3 and the pot body 1, and reducing the product's requirements for parts accuracy.

[0095] Based on the above embodiment, in a preferred embodiment, a U-shaped groove is provided at the second end of the second push rod 11, and the U-shaped groove abuts against the first column structure 9. In this embodiment, the provision of the U-shaped groove facilitates the abutment of the second push rod 11 against the first column structure 9, thereby applying pressure to the first column structure 9. In other alternative embodiments, the U-shaped groove may not be provided, and the second end of the second push rod 11 may abut against the first column structure 9.

[0096] On the basis of the above embodiment, in a preferred embodiment, the second elastic member 10 is a spring. In other alternative embodiments, the second elastic member 10 is silica gel or a spring.

[0097] Example 6

[0098] The difference between this embodiment and embodiment 1 is that, in one implementation manner, the driving assembly includes a torsion spring 13 , and the elastic force of the torsion spring 13 can enable the hinge shaft 4 to move in the first strip hole 7 toward the direction close to the main structure.

[0099] In this embodiment, the elastic force of the torsion spring 13 pushes the hinge shaft 4 downward, and during the movement of the hinge shaft 4, the cover body is driven to move toward the main structure, thereby achieving zero gap in the assembly of the main structure and the cover body, which can reduce the precision requirements for parts.

[0100] On the basis of the above embodiment, in a preferred embodiment, as Figure 11 and Figure 13 As shown, the main body of the torsion spring 13 is disposed on the hinge shaft 4, and a first positioning structure is provided on the main structure. Both ends of the torsion spring 13 are fixed to the first positioning structure so that the middle portion of the torsion spring 13 has an elastic force toward the main structure. It should be noted that the main body of the torsion spring 13 refers to the multiple twisted coils of the torsion spring 13. In one embodiment, the device having a lid is an electric rice cooker, and the first positioning structure is provided on the support ring 2. In this embodiment, the torsion spring 13 pushes the hinge shaft 4 downward, which drives the lid 3 downward, achieving zero clearance between the lid 3 and the body 1.

[0101] In a preferred embodiment, the first positioning structure includes two positioning slots, and the two positioning slots are used to define two ends of the torsion spring 13 .

[0102] In one embodiment, Figure 12 As shown, the first positioning structure includes two first positioning slots 14, and the heights of the two first positioning slots 14 are the same. In an alternative embodiment, as Figure 13 and Figure 14 As shown, the first positioning structure includes two second positioning slots 17 , wherein the height of one second positioning slot 17 is higher than the height of the other second positioning slot 17 .

[0103] In an alternative embodiment, Figure 15 and Figure 16As shown, the main structure is provided with a second column structure 15 and a second positioning structure 16. The body of the torsion spring 13 is sleeved on the second column structure 15. The first end of the torsion spring 13 is fixed to the second positioning structure 16, and the second end of the torsion spring 13 is pressed against the hinge shaft 4. In one embodiment, the device with a lid is an electric rice cooker. The second column structure 15 and the second positioning structure 16 are provided on the support ring 2. In this embodiment, the torsion spring 13 pushes the hinge shaft 4 downward, which drives the lid 3 downward, achieving zero clearance between the lid 3 and the body 1.

[0104] Preferably, the second column structure 15 is parallel to the hinge axis 4 .

[0105] Specifically, the second positioning structure 16 is a third positioning slot.

[0106] Example 7

[0107] The difference between this embodiment and embodiment 1 is that the driving assembly includes a magnetic structure, and the magnetic force of the magnetic structure can make the hinge shaft 4 move in the first strip hole 7 toward the direction close to the main structure.

[0108] In this embodiment, a magnetic structure is provided to enable the hinge shaft 4 to move in the first strip hole 7 toward the main structure. In the process of moving toward the main structure, the hinge shaft 4 drives the cover body to sink, thereby achieving zero gap assembly between the main structure and the cover body.

[0109] In one embodiment, Figure 17 As shown, the magnetic structure includes a first magnet 18, which is fixed to the main structure and located below the hinge shaft 4. The first magnet 18 can generate an attractive force on the hinge shaft 4. In this embodiment, the hinge shaft 4 is made of a magnetically attractive material, such as iron, cobalt, nickel, etc. When the device with a lid is an electric rice cooker, the first magnet 18 is fixed to the support ring 2. The attractive force of the first magnet 18 on the hinge shaft 4 pulls the hinge shaft 4 downward, and the hinge shaft 4 drives the lid 3 to sink, achieving zero gap assembly between the lid 3 and the rice cooker body 1.

[0110] In an alternative embodiment, Figure 18 As shown, the magnetic structure includes a second magnet 19, which is fixed to the main structure and located above the hinge shaft 4. At least the side of the hinge shaft 4 opposite the second magnet 19 is magnetic and forms a repulsive force with the second magnet 19. In this embodiment, a magnet is provided on the side of the hinge shaft 4 opposite the second magnet 19, or the hinge shaft 4 is entirely magnetized. When the device with a lid is an electric rice cooker, the second magnet 19 is fixed to the support ring 2. The repulsive force exerted by the second magnet 19 on the hinge shaft 4 pulls the hinge shaft 4 downward, and the hinge shaft 4 drives the lid 3 downward, achieving zero clearance between the lid 3 and the rice cooker body 1.

[0111] In another alternative embodiment, the magnetic structure includes a magnetic material provided on the cover body and a magnetic material provided on the main structure, and the hinge shaft 4 is made of non-magnetic material. Suction is generated between the main structure and the cover body, causing the cover body to drive the hinge shaft 4 to sink downward, thereby achieving zero gap assembly between the main structure and the cover body.

[0112] Example 9

[0113] The difference between this embodiment and Example 1 is that, in one embodiment, Figure 19 and Figure 20 As shown, the cover is provided with a second strip-shaped hole 20, and the hinge shaft 4 is provided on the main structure. The hinge shaft 4 passes through the second strip-shaped hole 20. The drive assembly is used to drive the cover to move relative to the hinge shaft 4 toward the main structure. In this embodiment, the position of the hinge shaft 4 is different. The drive assembly drives the cover toward the main structure, achieving zero clearance between the cover and the main structure.

[0114] On the basis of the above embodiment, in a preferred embodiment, as Figure 19 As shown, the drive assembly includes a third elastic member 21, the first end of which is connected to the hinge shaft 4, and the second end of which abuts the lid. In this embodiment, the elastic force of the third elastic member 21 drives the lid downward, achieving zero clearance between the lid and the main body. When the device with the lid is an electric rice cooker, the second strip-shaped hole 20 is the hinge shaft hole on the rice cooker lid 3. The elastic force of the third elastic member 21 drives the lid 3 downward, achieving zero clearance between the lid 3 and the rice cooker body 1.

[0115] On the basis of the above embodiment, in a preferred embodiment, the drive assembly further includes a third push rod; the first end of the third push rod is connected to the second end of the third elastic member 21, and the second end of the third push rod abuts against the cover body; or, the first end of the third push rod abuts against the hinge shaft 4, and the second end of the third push rod is connected to the first end of the third elastic member 21. In this embodiment, the third elastic member 21 and the third push rod drive the cover body to sink downward, achieving zero gap in assembly between the cover body and the main structure. When the device with the cover body is an electric rice cooker, the second strip hole 20 is provided at the tail of the pot cover 3, and the third elastic member 21 and the third push rod drive the pot cover 3 to sink downward, achieving zero gap in assembly between the pot cover 3 and the pot body 1.

[0116] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A device with a cover, comprising a main structure and a cover hinged to the main structure via a hinge shaft (4), characterized in that: Also includes: The driving assembly is capable of driving the cover body to move toward the main structure when the cover body is covered on the main structure. The main structure is provided with a first strip hole (7). The angle between the extension direction of the long axis diameter of the first strip hole (7) and the vertical direction is A, 0°≤A<90°. The hinge shaft (4) is provided on the cover body, and the hinge shaft (4) is passed through the first strip hole (7). The driving assembly can make the hinge shaft (4) move in the first strip hole (7) toward the direction close to the main structure.

2. The device with a cover according to claim 1, characterized in that The driving assembly comprises a first elastic member (5), a first end of the first elastic member (5) being fixed to the main structure, a second end of the first elastic member (5) being in contact with the hinge shaft (4), and an elastic force of the first elastic member (5) being capable of driving the hinge shaft (4) to move in the first strip hole (7) toward the direction approaching the main structure.

3. The device with a cover according to claim 2, characterized in that A mounting portion is provided on the hinge shaft (4), and the second end of the first elastic member (5) abuts against the mounting portion.

4. The device with a cover according to claim 2, characterized in that The driving assembly further comprises a first push rod (6), the first end of the first push rod (6) being connected to the second end of the first elastic member (5), and the second end of the first push rod (6) being adapted to abut against the hinge shaft (4).

5. The device with a cover according to claim 4, characterized in that The second end of the first push rod (6) is provided with a U-shaped groove, and the U-shaped groove abuts against the hinge shaft (4).

6. The device with a cover according to any one of claims 2 to 5, characterized in that: The first end of the first elastic member is fixed to the side of the main structure, and the second end of the first elastic member is in contact with the hinge shaft (4).

7. The device with a cover according to claim 1, wherein: The cover body is provided with a first column structure (9), and the driving assembly includes a second elastic member (10). The first end of the second elastic member (10) is fixed on the main structure, and the second end of the second elastic member (10) is in contact with the first column structure (9). The elastic force of the second elastic member (10) can enable the first column structure (9) to drive the cover body to move in a direction close to the main structure.

8. The device with a cover according to claim 7, characterized in that The driving assembly further comprises a second push rod (11), the first end of the second push rod (11) being fixedly connected to the second end of the second elastic member (10), and the second end of the second push rod (11) being in contact with the first column structure (9).

9. The device with a cover according to claim 8, characterized in that The second end of the second push rod (11) is provided with a U-shaped groove, and the U-shaped groove abuts against the first column structure (9).

10. The device with a cover according to claim 1, wherein: The driving assembly comprises a torsion spring (13), and the elastic force of the torsion spring (13) can enable the hinge shaft (4) to move in the first strip-shaped hole (7) toward the direction close to the main structure.

11. The device with a cover according to claim 10, characterized in that: The body of the torsion spring (13) is arranged on the hinge shaft (4), a first positioning structure is provided on the main structure, and both ends of the torsion spring (13) are fixed on the first positioning structure so that the body of the torsion spring (13) has an elastic force in a direction close to the main structure.

12. The device with a cover according to claim 11, wherein: The first positioning structure comprises two positioning slots, and the two positioning slots are used to define two ends of the torsion spring (13).

13. The device with a cover according to claim 10, wherein: The main structure is provided with a second column structure (15) and a second positioning structure (16); the body of the torsion spring (13) is sleeved on the second column structure (15); the first end of the torsion spring (13) is fixed on the second positioning structure (16); and the second end of the torsion spring (13) is pressed onto the hinge shaft (4).

14. The device with a cover according to claim 1, wherein: The driving assembly comprises a magnetic structure, the magnetic force of which can cause the hinge shaft (4) to move in the first strip-shaped hole (7) in a direction close to the main structure.

15. The device with a cover according to claim 14, wherein: The magnetic structure comprises: A first magnet (18) is fixed on the main structure and located below the hinge shaft (4). The first magnet (18) can generate an attractive force on the hinge shaft (4).

16. The device with a cover according to claim 14, wherein: The magnetic structure comprises: The second magnet (19) is fixed on the main structure and located above the hinge shaft (4); at least one side of the hinge shaft (4) opposite to the second magnet (19) is magnetic and forms a repulsive force with the second magnet (19).

17. The device with a cover according to claim 1, wherein: The cover body is provided with a second strip-shaped hole (20), the hinge shaft (4) is provided on the main structure, and the hinge shaft (4) is passed through the second strip-shaped hole (20), and the driving component is used to drive the cover body to move relative to the hinge shaft (4) in a direction close to the main structure.

18. The device with a cover according to claim 17, wherein: The driving assembly comprises a third elastic member (21), a first end of the third elastic member (21) is connected to the hinge shaft (4), and a second end of the third elastic member (21) is in contact with the cover body.

19. The device with a cover according to claim 18, wherein: The drive assembly further includes a third push rod; The first end of the third push rod is connected to the second end of the third elastic member (21), and the second end of the third push rod abuts against the cover body; or the first end of the third push rod abuts against the hinge shaft (4), and the second end of the third push rod is connected to the first end of the third elastic member (21).

20. The device with a cover according to any one of claims 1-5 and 7-19, characterized in that: The device with a cover is an electric rice cooker.

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