Limitable rotary cabinet

Abstract

The invention discloses a rotary cabinet capable of being limited, and particularly relates to a rotary piece capable of being limited, the rotary piece comprises a rotary outer disc, a limiting base, a collision bead, a limiting piece and a rotary inner disc, the rotary outer disc is of a first hollow disc structure, and the first hollow disc structure comprises a wrapping part, a first containing part and a bearing part which are connected in sequence; the rotating inner disc is of a second hollow disc structure, the second hollow disc structure comprises a clamping part, a second containing part and a connecting part which are sequentially connected, a containing space with a circular section is formed between the first containing part and the second containing part, and a metal ball is arranged in the containing space; the limiting base is of a first circular structure, and a collision bead is arranged on the first circular structure; the limiting piece comprises a first inserting part, a limiting part and a second inserting part which are connected in sequence, the limiting part is of a second circular structure, a first limiting hole is formed in the second circular structure, and the first limiting hole is matched with the collision bead. The device can achieve the dual functions of rotating and limiting, and the whole device is compact in structure.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture, and more specifically, to a rotatable cabinet with limited position. The invention name of the present invention can also be a rotatable member with limited position and its assembly method, and an assembly method of a rotatable cabinet with limited position. Background Art

[0002] Wardrobes and storage cabinets are common types of furniture used in homes and offices, usually for storing and placing items. Most of the existing cabinets are of the hinged door type, with a hinged door installed at the front opening of the cabinet. To facilitate the storage of items, some cabinets also adopt the drawer type, with drawers inside. The drawers can be pulled out from the interior of the cabinet or fully stored in the interior space of the cabinet. A rotatable cabinet is a type of furniture with unique design and function. It realizes the storage and access of items through a rotation mechanism and is widely used in home spaces such as kitchens, bedrooms, and living rooms. Currently, the rotatable cabinet only has a single rotation function and cannot limit the rotation of the cabinet at a certain angle.

[0003] Chinese Patent Document 1 (Application No.: 202122132000.5, Application Date: September 6, 2021) provides an assembled cabinet structure. Refer to Figure 1 as shown Figure 1 is a schematic structural diagram of the assembled cabinet structure in Chinese Patent Document 1; the assembled cabinet structure includes a drawer cabinet body, and the drawer cabinet body includes an upper cabinet body 1' and a lower cabinet body 2'; a first rotating connecting piece 3' is arranged at the bottom of the upper cabinet body 1'; a second rotating connecting piece 4' is arranged on the surface of the lower cabinet body 2' opposite to the first rotating connecting piece 3'; a rotating limiting ring 5' is arranged between the first rotating connecting piece 3' and the second rotating connecting piece 4'. This solution can only rotate and cannot limit its position, that is, this solution only has a single rotation function and cannot accurately limit the cabinet at a certain angle. Therefore, it is a technical problem that urgently needs to be solved in the art. Summary of the Invention

[0004] In view of this, the present invention provides a rotatable member with limited position to solve the problem in the prior art that the drawer cabinet has a single rotation function and cannot accurately limit the cabinet at a certain angle.

[0005] In a first aspect, the present application provides a rotatable member with a limit function, which includes a rotating outer disc, a limit base, a detent ball, a limiting member, and a rotating inner disc. The rotating outer disc and the rotating inner disc are parallel, and the rotating outer disc is located below the rotating inner disc. Among them, the rotating outer disc is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion, a first accommodating portion, and a bearing portion that are sequentially connected. The covering portion, the first accommodating portion, and the bearing portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The first hollow disc structure has a first hollow portion; the first accommodating portion is recessed towards the side away from the rotating inner disc to form an arc surface. Along the direction from the rotating inner disc to the rotating outer disc, the cross-sectional shape of the covering portion is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion. The cross-sectional shape of the bearing portion is a rectangle; a first hollow portion is provided in the middle of the bearing portion, and the first hollow portion penetrates the bearing portion along the direction from the rotating inner disc to the rotating outer disc; the rotating inner disc is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion, a second accommodating portion, and a connecting portion that are sequentially connected. The clamping portion, the second accommodating portion, and the connecting portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The clamping portion corresponds to the covering portion. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the second accommodating portion completely overlaps with the orthographic projection of the first accommodating portion; the clamping portion of the opening of the U-shaped structure is clamped within the U-shaped structure. The second accommodating portion protrudes towards the side away from the rotating outer disc to form an arc surface. A second hollow portion is provided on the connecting portion, and the second hollow portion penetrates the connecting portion along the direction from the rotating inner disc to the rotating outer disc. A accommodating space with a circular cross-section is formed between the first accommodating portion and the second accommodating portion, and a metal ball is arranged in the accommodating space; the limit base is a first circular structure, which is connected to the side of the bearing portion close to the connecting portion. At least two detent balls are provided on the first circular structure, and the at least two detent balls are arranged along the circumferential direction of the first circular structure, and the detent balls pass through the first hollow portion; the limiting member includes a first inserting portion, a limiting portion, and a second inserting portion that are sequentially connected. The limiting portion is a second circular structure. At least two first limiting holes are provided on the second circular structure, and the at least two first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the detent balls. The first inserting portion and the second inserting portion are both inserted into the gap between the bearing portion and the connecting portion, and the first inserting portion and the second inserting portion are respectively fixedly connected to the corresponding connecting portion. When the connecting portion rotates relative to the bearing portion, the detent balls are embedded in the first limiting holes.

[0006] In a second aspect, the present application provides an assembly method for a rotatable member with limited position, including: The rotatable member with limited position includes a rotating outer disk, a limiting base, a detent ball, a limiting member, a rotating inner disk, and a soundproof pad. The rotating outer disk and the rotating inner disk are parallel, and the rotating outer disk is located below the rotating inner disk. Among them, the rotating outer disk is a first hollow disk structure. Along the radial direction of the first hollow disk structure, the first hollow disk structure includes a covering portion, a first accommodating portion, and a bearing portion that are connected in sequence. The covering portion, the first accommodating portion, and the bearing portion are all annular in the orthographic projection along the direction from the rotating inner disk to the rotating outer disk. The first hollow disk structure has a first hollow portion; the first accommodating portion is recessed towards the side away from the rotating inner disk to form an arc surface. Along the direction from the rotating inner disk to the rotating outer disk, the cross-sectional shape of the covering portion is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion. The cross-sectional shape of the bearing portion is a rectangle; a first hollow portion is provided in the middle of the bearing portion, and the first hollow portion penetrates the bearing portion along the direction from the rotating inner disk to the rotating outer disk; the rotating inner disk is a second hollow disk structure. Along the radial direction of the second hollow disk structure, the second hollow disk structure includes a clamping portion, a second accommodating portion, and a connecting portion that are connected in sequence. The clamping portion, the second accommodating portion, and the connecting portion are all annular in the orthographic projection along the direction from the rotating inner disk to the rotating outer disk. The clamping portion corresponds to the covering portion. Along the direction from the rotating inner disk to the rotating outer disk, the orthographic projection of the second accommodating portion completely overlaps with the orthographic projection of the first accommodating portion; the clamping portion of the opening of the U-shaped structure is clamped within the U-shaped structure. The second accommodating portion protrudes towards the side away from the rotating outer disk to form an arc surface. A second hollow portion is provided on the connecting portion, and the second hollow portion penetrates the connecting portion along the direction from the rotating inner disk to the rotating outer disk. A accommodating space with a circular cross-section is formed between the first accommodating portion and the second accommodating portion, and a metal ball is arranged in the accommodating space; the limiting base is a first circular structure, which is connected to the side of the bearing portion close to the connecting portion. At least two detent balls are provided on the first circular structure, and the at least two detent balls are arranged along the circumferential direction of the first circular structure, and the detent balls pass through the first hollow portion; the limiting member includes a first plugging portion, a limiting portion, and a second plugging portion that are connected in sequence. The limiting portion is a second circular structure, and at least two first limiting holes are provided on the second circular structure. The at least two first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the detent balls. Both the first plugging portion and the second plugging portion are plugged into the gap between the bearing portion and the connecting portion, and the first plugging portion and the second plugging portion are respectively fixedly connected to the corresponding connecting portion. When the connecting portion rotates relative to the bearing portion, the detent balls are embedded in the first limiting holes; a soundproof pad is provided on the side of the limiting member away from the limiting base. The soundproof pad is a circular pad. Along the direction from the rotating inner disk to the rotating outer disk, the orthographic projection of the soundproof pad completely overlaps with the orthographic projection of the second circular structure. A notch corresponding to the first limiting hole is provided at the edge of the circular pad, and the shape of the notch is U-shaped, and the notch is recessed towards the center position of the circular pad;Provide a rotating inner disk, a rotating outer disk and metal balls. Place the metal balls along the circumferential direction in the first accommodating part of the rotating outer disk. Snap the clamping part of the rotating inner disk onto the covering part of the rotating outer disk. The metal balls are located in the gap between the first accommodating part of the rotating outer disk and the second accommodating part of the rotating inner disk. Bend the covering part of the rotating outer disk to clamp the clamping part of the rotating inner disk. Provide a limit base and a detent. Place at least two detents on the limit base respectively, and connect the limit base to the bearing part of the rotating outer disk. Provide a limiting member. Clamp the limiting member between the clamping part of the rotating inner disk and the bearing part of the rotating outer disk, and connect the first insertion part and the second insertion part in the limiting member to the clamping part of the rotating inner disk. Provide a sound-absorbing pad. A sound-absorbing pad is bonded to the side of the limiting member away from the limit base.

[0007] In a third aspect, the present application provides an assembly method for a rotatable cabinet with limit function, including:

[0008] The limit-rotatable cabinet includes a first cabinet body, at least one second cabinet body and a third cabinet body. The first cabinet body, at least one second cabinet body and the third cabinet body are respectively hollow rectangular bodies with openings. The adjacent first cabinet body and the second cabinet body, and the second cabinet body and the third cabinet body are respectively connected by limit-rotatable parts. The limit-rotatable part includes a rotating outer disc, a limit base, a detent, a limiting part, a rotating inner disc and a sound-absorbing pad. The rotating outer disc and the rotating inner disc are parallel, and the rotating outer disc is located below the rotating inner disc. Among them, the rotating outer disc is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering part, a first accommodating part and a bearing part connected in sequence. The covering part, the first accommodating part and the bearing part are all annular in the positive projection along the direction from the rotating inner disc to the rotating outer disc. The first hollow disc structure has a first hollow part. The first accommodating part is recessed towards the side away from the rotating inner disc to form an arc surface. Along the direction from the rotating inner disc to the rotating outer disc, the cross-sectional shape of the covering part is a C-shaped structure, and the opening of the C-shaped structure faces the side of the first hollow part. The cross-sectional shape of the bearing part is a rectangle. A first hollow part is opened in the middle of the bearing part, and the first hollow part penetrates the bearing part along the direction from the rotating inner disc to the rotating outer disc. The rotating inner disc is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping part, a second accommodating part and a connecting part connected in sequence. The clamping part, the second accommodating part and the connecting part are all annular in the positive projection along the direction from the rotating inner disc to the rotating outer disc. The clamping part corresponds to the covering part. Along the direction from the rotating inner disc to the rotating outer disc, the positive projection of the second accommodating part completely overlaps with the positive projection of the first accommodating part. The clamping part of the opening of the C-shaped structure is clamped in the C-shaped structure. The second accommodating part protrudes towards the side away from the rotating outer disc to form an arc surface. A second hollow part is opened on the connecting part, and the second hollow part penetrates the connecting part along the direction from the rotating inner disc to the rotating outer disc. A circular accommodating space is formed between the first accommodating part and the second accommodating part, and a metal ball is arranged in the accommodating space. The limit base is a first circular structure, which is connected to the side of the bearing part close to the connecting part. At least two detents are arranged on the first circular structure, and at least two detents are arranged along the circumferential direction of the first circular structure, and the detents pass through the first hollow part. The limiting part includes a first inserting part, a limiting part and a second inserting part connected in sequence. The limiting part is a second circular structure, and at least two first limiting holes are opened on the second circular structure. At least two first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the detents. The first inserting part and the second inserting part are both inserted into the gap between the bearing part and the connecting part, and the first inserting part and the second inserting part are respectively fixedly connected to the corresponding connecting part. When the connecting part rotates relative to the bearing part, the detent is embedded in the first limiting hole;A sound-absorbing pad is provided on the side of the limiting member away from the limiting base. The sound-absorbing pad is a circular pad. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the sound-absorbing pad completely overlaps with the orthographic projection of the second circular structure. A notch corresponding to the first limiting hole is formed at the edge of the circular pad. The shape of the notch is U-shaped, and the notch is recessed towards the center of the circular pad; the first cabinet body, the second cabinet body and the third cabinet body are arranged along the direction from the rotating inner disc to the rotating outer disc; a third cabinet body and a first limitable rotating member are provided. The third cabinet body includes a first top plate. A first top plate hole is formed by punching the first top plate of the third cabinet body. Along the direction from the first cabinet body to the third cabinet body, the first top plate hole penetrates through the first top plate. The first top plate hole corresponds to the ball catch, the second bearing hole and the first fastener in the first limitable rotating member; the third fastener threadedly connects the first top plate and the rotating outer disc in the first limitable rotating member through the first top plate hole; a second cabinet body and a second limitable rotating member are provided. The second cabinet body includes a second top plate and a first bottom plate arranged in parallel. Second top plate holes and first bottom plate holes are respectively formed by punching the second top plate and the first bottom plate. Along the direction from the first cabinet body to the third cabinet body, the second top plate holes and the first bottom plate holes respectively penetrate through the second top plate and the first bottom plate. The first bottom plate hole corresponds to the connection hole in the first limitable rotating member. The second top plate hole corresponds to the ball catch, the second bearing hole and the first fastener in the second limitable rotating member; the third fastener threadedly connects the second top plate and the bearing part in the rotating outer disc of the second limitable rotating member through the second top plate hole; a first cabinet body is provided. The first cabinet body includes a second bottom plate. A second bottom plate hole is formed by punching the second bottom plate. Along the direction from the third cabinet body to the first cabinet body, the second bottom plate hole penetrates through the second bottom plate. The second bottom plate hole corresponds to the connection hole in the second limitable rotating member; the second fastener and the fourth fastener threadedly connect the first bottom plate and the connecting part of the rotating inner disc in the first limitable rotating member through the first bottom plate hole; the second fastener and the fourth fastener threadedly connect the second bottom plate and the connecting part of the rotating inner disc in the second limitable rotating member through the second bottom plate hole.;

[0009] Compared with the prior art, the limitable rotating member, its assembly method, and the assembly method of the limitable rotating cabinet provided by the present invention at least achieve the following beneficial effects:

[0010] The limitable rotating member, its assembly method, and the assembly method of the limitable rotating cabinet provided by the present invention can achieve the dual functions of rotation and limitation. For example, the structural design of the rotating inner disc and the rotating outer disc allows them to rotate relative to each other within the limited range. Through the cooperation of the ball catch on the limiting base and the limiting hole on the limiting member, the rotation angle is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0012] Figure 1 It is a schematic structural diagram of the prefabricated cabinet structure in Chinese Patent Document 1;

[0013] Figure 2 It is a schematic structural diagram of one direction of a limitable rotating part provided by the present invention;

[0014] Figure 3 It is a schematic structural diagram of another direction of a limitable rotating part provided by the present invention;

[0015] Figure 4 It is an exploded view of a limitable rotating part provided by the present invention;

[0016] Figure 5 It is Figure 2 A schematic cross-sectional view in one direction of A-A' in

[0017] Figure 6 It is Figure 2 A schematic cross-sectional view in another direction of A-A' in

[0018] Figure 7 It is Figure 6 An enlarged view at A in

[0019] Figure 8 It is a schematic structural diagram of a limiting part provided by the present invention;

[0020] Figure 9 It is a schematic structural diagram of a limiting base provided by the present invention;

[0021] Figure 10 It is a schematic structural diagram of a rotating outer disc provided by the present invention;

[0022] Figure 11 It is a schematic structural diagram of a rotating inner disc provided by the present invention;

[0023] Figure 12 It is a schematic structural diagram of a sound insulation pad provided by the present invention;

[0024] Figure 13 It is a schematic flow chart of an assembly method of a limitable rotating part provided by the present invention;

[0025] Figure 14 It is a simplified flow chart of an assembly method of a limitable rotating part provided by the present invention;

[0026] Figure 15 It is a schematic structural diagram of a limitable rotating cabinet provided by the present invention;

[0027] Figure 16 It is a schematic structural diagram of the rotating state of a limitable rotating cabinet provided by the present invention;

[0028] Figure 17 It is a schematic flow chart of an assembly method of a rotatable cabinet with a limit provided by the present invention;

[0029] Figure 18 It is a simplified flow chart of an assembly method of a rotatable part with a limit provided by the present invention. Detailed implementation manners

[0030] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. The description of at least one exemplary embodiment below is actually merely illustrative and in no way restricts the present invention and its application or use.

[0031] Figures 2 - 11 As shown, Figure 2 It is a schematic structural diagram of a rotatable part with a limit in one direction provided by the present invention; Figure 3 It is a schematic structural diagram of a rotatable part with a limit in another direction provided by the present invention; Figure 4 It is an exploded view of a rotatable part with a limit provided by the present invention; Figure 5 It is Figure 2 A schematic cross-sectional view in one direction of A-A' in Figure 6 It is Figure 2 A schematic cross-sectional view in another direction of A-A' in

[0032] Figure 7 It is Figure 6 An enlarged view at A in Figure 8 It is a schematic structural diagram of a limiting member provided by the present invention;

[0033] Figure 9 It is a schematic structural diagram of a limiting base provided by the present invention; Figure 10 It is a schematic structural diagram of a rotating outer disc provided by the present invention; Figure 11It is a schematic structural diagram of a rotating inner disk provided by the present invention; this embodiment provides a rotatable limiting member 100, which includes a rotating outer disk 1, a limiting base 2, a detent 3, a limiting member 5 and a rotating inner disk 4. The rotating outer disk 1 and the rotating inner disk 4 are parallel, and the rotating outer disk 1 is located below the rotating inner disk 4. Among them, the rotating outer disk 1 is a first hollow disk structure. Along the radial direction of the first hollow disk structure, the first hollow disk structure includes a covering portion 10, a first accommodating portion 11 and a bearing portion 12 that are sequentially connected. The positive projections of the covering portion 10, the first accommodating portion 11 and the bearing portion 12 along the direction from the rotating inner disk 4 to the rotating outer disk 1 are all annular. The first hollow disk structure has a first hollow portion 120; the first accommodating portion 11 is recessed towards the side away from the rotating inner disk 4 to form an arc surface. Along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the cross-sectional shape of the covering portion 10 is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion 120. The cross-sectional shape of the bearing portion 12 is a rectangle; a first hollow portion 120 is opened in the middle of the bearing portion 12, and the first hollow portion 120 penetrates through the bearing portion 12 along the direction X from the rotating inner disk 4 to the rotating outer disk 1; the rotating inner disk 4 is a second hollow disk structure. Along the radial direction of the second hollow disk structure, the second hollow disk structure includes a clamping portion 41, a second accommodating portion 42 and a connecting portion 43 that are sequentially connected. The positive projections of the clamping portion 41, the second accommodating portion 42 and the connecting portion 43 along the direction from the rotating inner disk 4 to the rotating outer disk 1 are all annular. The clamping portion 41 corresponds to the covering portion 10. Along the direction from the rotating inner disk 4 to the rotating outer disk 1, the positive projection of the second accommodating portion 42 completely overlaps with the positive projection of the first accommodating portion 11; the clamping portion 41 of the opening of the U-shaped structure is clamped inside the U-shaped structure. The second accommodating portion 42 protrudes towards the side away from the rotating outer disk 1 to form an arc surface. A second hollow portion 430 is opened on the connecting portion 43, and the second hollow portion 430 penetrates through the connecting portion 43 along the direction X from the rotating inner disk 4 to the rotating outer disk 1. A accommodating space with a circular cross-section is formed between the first accommodating portion 11 and the second accommodating portion 42, and a metal ball 7 is arranged in the accommodating space; the limiting base 2 is a first circular structure, which is connected to the side of the bearing portion 12 close to the connecting portion 43. At least two detents 3 are arranged on the first circular structure, and at least two detents 3 are arranged along the circumferential direction of the first circular structure, and the detent 3 passes through the first hollow portion 120; the limiting member 5 includes a first plugging portion 51, a limiting portion 52 and a second plugging portion 53 that are sequentially connected. The limiting portion 52 is a second circular structure, and at least two first limiting holes 521 are opened on the second circular structure. At least two first limiting holes 521 are arranged along the circumferential direction of the second circular structure. The first limiting holes 521 cooperate with the detent 3. Both the first plugging portion 51 and the second plugging portion 53 are plugged into the gap between the bearing portion 12 and the connecting portion 43. The first plugging portion 51 and the second plugging portion 53 are respectively fixedly connected to the corresponding connecting portion 43. When the connecting portion 43 rotates relative to the bearing portion 12, the limiting ball 3 pops out of the first limiting hole 521.

[0034] Specifically, in combination with Figures 2 - 7 As shown, the above-mentioned rotating outer disk 1 and rotating inner disk 4 are relatively arranged. For example, the rotating inner disk 4 is located above the rotating outer disk 1, or the rotating inner disk 4 is located below the rotating outer disk 1. In this embodiment, only the case where the rotating inner disk 4 is located above the rotating outer disk 1 is taken as an example for illustration.

[0035] In combination with Figure 4 、 Figure 7 and Figure 11 As shown, the above-mentioned rotating outer disk 1 is a first hollow disk structure. The first hollow disk structure includes a covering part 10, a first accommodating part 11 and a bearing part 12. The covering part 10 is located on the outer circle of the first hollow disk structure, the bearing part 12 is located on the inner circle of the first hollow disk structure, and the first accommodating part 11 is located between the covering part 10 and the bearing part 12, that is, the covering part 10, the first accommodating part 11 and the bearing part 12 are sequentially connected along the radial direction of the first hollow disk structure. The cross-section of the covering part 10 along the radial direction of the first hollow disk structure is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow part 120, which is used to cooperate with the clamping part 41 of the rotating inner disk 4. The first accommodating part 11 is recessed towards the side away from the rotating inner disk 4 to form an arc surface for accommodating the metal ball 7. The cross-section of the bearing part 12 along the radial direction of the first hollow disk structure is rectangular, and the hollow part is the first hollow part 120. The first hollow part 120 penetrates the bearing part 12 along the direction X from the rotating inner disk 4 to the rotating outer disk 1. The bearing part 12 is used to bear the limit base 2, that is, to provide support and limit functions for the limit base 2. Through the mutual cooperation among the above-mentioned covering part 10, first accommodating part 11 and bearing part 12, as the outer structure of the rotatable limiting member 100, it provides support and limit functions. The covering part 10 is used to fix the rotating inner disk 4, the first accommodating part 11 is used to accommodate the metal ball 7, and the bearing part 12 is used to install the limit base 2.

[0036] Optionally, the above-mentioned covering part 10, first accommodating part 11 and bearing part 12 are of an integral structure. Adopting an integral structure for the covering part 10, first accommodating part 11 and bearing part 12 can not only reduce the connection points and splicing parts, thus avoiding structural failure caused by loosening or breaking at the connection, but also reduce the number of parts that need to be separately processed and assembled, reduce the assembly difficulty and time cost. At the same time, since there is no splicing error between the covering part 10, first accommodating part 11 and bearing part 12, the integral structure can ensure higher assembly accuracy and ensure the normal operation of the rotation and limit functions of the rotating member. In addition, the integral structure reduces the relative movement between the covering part 10, first accommodating part 11 and bearing part 12, thereby reducing the damage caused by friction and wear.

[0037] In combination with Figure 4 、 Figure 7 and Figure 12As shown, the above-mentioned rotating inner disk 4 is a second hollow disk structure. In the radial direction of the second hollow disk structure, the second hollow disk structure includes a clamping portion 41, a second accommodating portion 42, and a connecting portion 43 that are connected in sequence. The clamping portion 41 corresponds to the covering portion 10 of the rotating outer disk 1. The second accommodating portion 42 protrudes away from the rotating outer disk 1 to form an arc surface. The second accommodating portion 42 cooperates with the first accommodating portion 11. A number of metal balls 7 are placed in the gap between the second accommodating portion 42 and the first accommodating portion 11. For example, a number of metal balls 7 are arranged along the circumferential direction of the first hollow disk structure and the second hollow disk structure. The connecting portion 43 corresponds to the bearing portion 12. A second hollow portion 430 is provided in the connecting portion 43. The second hollow portion 430 penetrates the connecting portion 43 along the direction X from the rotating inner disk 4 to the rotating outer disk 1. The above-mentioned metal balls 7 can be steel balls, that is, steel balls are placed in the gap between the first accommodating portion 11 and the second accommodating portion 42. Placing the steel balls in the gap between the first accommodating portion 11 and the second accommodating portion 42 does not require an additional position for placing the steel balls, making full use of the gap between the first accommodating portion 11 and the second accommodating portion 42, saving space to reduce costs. The above-mentioned clamping portion 41, second accommodating portion 42, and connecting portion 43 cooperate with each other and serve as the inner structure of the rotatable limiting member 100, and cooperate with the rotating outer disk 1 to achieve the rotating function. The above-mentioned clamping portion 41, second accommodating portion 42, and connecting portion 43 are of an integral structure. Designing the clamping portion 41, second accommodating portion 42, and connecting portion 43 as an integral structure can not only eliminate the connection points between the components (the clamping portion 41, second accommodating portion 42, and connecting portion 43), reduce the risk of structural failure caused by loosening or breaking at the connection, so that the rotating inner disk 4 is more durable when bearing loads or being used frequently, but also because there is no splicing error between the parts, it can ensure a higher assembly accuracy, thereby ensuring a closer fit between the rotating inner disk 4 and the rotating outer disk 1, and further making the rotating and limiting functions more stable. At the same time, since the clamping portion 41, second accommodating portion 42, and connecting portion 43 are integrated, the cooperation between the detent ball 3 and the metal balls 7 is more precise, and the limiting function can be better achieved.

[0038] Combined with Figure 4 , Figure 6 and Figure 9As shown, the above-mentioned limit base 2 is a first circular structure, and the first circular structure is fixedly connected to one side of the bearing part 12 close to the connecting part 43. A number of catch beads 3 are inserted into the first circular structure. The number of catch beads 3 is arranged along the circumferential direction, and the bottom of the catch bead 3 passes through the first hollow part 120 of the bearing part 12, that is, the limit base 2 is used to provide the installation position of the catch bead 3. The number of the above-mentioned catch beads 3 can be two, three, four or five. Of course, according to the actual situation, the number of catch beads 3 can also be increased or decreased, and this embodiment does not make specific limitations. In this embodiment, taking the number of catch beads 3 as four as an example, a rectangular structure can be formed between the four catch beads 3, so that the structure is more stable when the rotating inner disk 4 and the rotating outer disk 1 rotate at any angle.

[0039] The above-mentioned catch bead 3 is a standard part, and the catch bead 3 includes components such as a housing, a spring and a ball. The ball can be telescopic under the action of the spring. When the connecting part 43 of the rotating inner disk 4 rotates relative to the bearing part 12 of the rotating outer disk 1, the ball of the catch bead 3 is embedded in the first limit hole 521, and then the rotating inner disk 4 is in a limited state. When the connecting part 43 of the rotating inner disk 4 continues to rotate relative to the bearing part 12 of the rotating outer disk 1, the ball of the catch bead 3 retracts into the interior of the housing, thereby releasing the limited state of the rotating inner disk 4 and enabling the rotating inner disk 4 to move freely. Since the catch beads 3 are all well-known technologies to those skilled in the art, they are not improvement points and do not need to be described in detail. Those skilled in the art can know the above specific structure according to the position and overall structure of this solution, and can clearly know how to implement it.

[0040] Combined with Figure 4 , Figure 5 and Figure 8As shown, the above-mentioned limiting member 5 can be a limiting piece, which includes a first insertion portion 51, a limiting portion 52 and a second insertion portion 53. The limiting portion 52 is a second circular structure, and a plurality of first limiting holes 521 are formed in the second circular structure. The plurality of first limiting holes 521 are arranged along the circumferential direction of the second circular structure. The first insertion portion 51 and the second insertion portion 53 are used to be inserted into the gap between the bearing portion 12 and the connecting portion 43, and the first insertion portion 51 and the second insertion portion 53 are respectively fixedly connected to the connecting portion 43. The number of the above-mentioned first limiting holes 521 can be two, three, four, five, six, seven, eight or nine. When the number of the first limiting holes 521 is two, the rotation angle between the rotating inner disk 4 and the rotating outer disk 1 is limited to 180°; when the number of the first limiting holes 521 is three, the rotation angle between the rotating inner disk 4 and the rotating outer disk 1 is limited to 120°; when the number of the first limiting holes 521 is four, the rotation angle between the rotating inner disk 4 and the rotating outer disk 1 is limited to 90°; when the number of the first limiting holes 521 is five, the rotation angle between the rotating inner disk 4 and the rotating outer disk 1 is limited to 72°; when the number of the first limiting holes 521 is eight, the rotation angle between the rotating inner disk 4 and the rotating outer disk 1 is limited to 45°. That is, according to the number of the first limiting holes 521, different-angle limiting can be realized, that is, the cabinet body can be accurately limited at a certain angle. In this embodiment, only the case where the number of the first limiting holes 521 is eight is taken as an example for illustration. Of course, the number of the first limiting holes 521 can be increased or decreased according to the actual situation, and no specific limitation is made in this embodiment. The shape of the above-mentioned first limiting holes 521 can be circular or oval, and the oval shape is exemplified in this embodiment. Through the cooperation of a plurality of ball catches 3 and a plurality of first limiting holes 521 on the limiting member 5, the limitation of the rotation angle is realized, that is, through the cooperation of the first limiting holes 521 and the ball catches 3, the limiting function of the rotating inner disk 4 and the rotating outer disk 1 is realized. When the connecting portion 43 rotates relative to the bearing portion 12, the ball catch 3 pops out of the first limiting hole 521 to limit the rotation angle.

[0041] The above-mentioned first insertion portion 51, limiting portion 52 and second insertion portion 53 are of an integral structure. Adopting an integral structure for the first insertion portion 51, limiting portion 52 and second insertion portion 53 can not only significantly improve the structural strength, stability (such as ensuring higher assembly accuracy, ensuring closer cooperation between the ball catch 3 and the first limiting hole 521, and more stable limiting function) and durability of the limiting member 5, but also simplify the manufacturing and assembly processes, reduce the production cost, and improve the design flexibility and aesthetics.

[0042] Compared with the prior art, the limitable rotating member 100 provided in this embodiment has at least achieved the following beneficial effects:

[0043] First, it can achieve the dual functions of rotation and limit. For example, the structural design of the rotating inner disk 4 and the rotating outer disk 1 allows them to rotate relative to each other within the limit range. Through the cooperation of the detent 3 on the limit base 2 and the first limit hole 521 on the limiting member 5, the rotation angle is restricted, such as accurately limiting the cabinet body at a certain angle. It is applicable to occasions where precise control of the rotation angle is required, and at the same time has high stability and reliability. Second, the structure of the whole device is compact. The rotating outer disk 1, the limit base 2, the detent 3, the limiting member 5 and the rotating inner disk 4 cooperate with each other to achieve a high degree of integration of the limit and rotation functions, saving space and facilitating installation and use.

[0044] Optionally, as shown in Figure 4 and Figure 6 , along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the thickness of the rotating inner disk 4 and the thickness of the rotating outer disk 1 are respectively less than the thickness of the limit base 2, and the thickness of the limit base 2 is the same as the thickness of the limiting member 5. Making the thickness of the limit base 2 greater than the thicknesses of the rotating inner disk 4 and the rotating outer disk 1 can not only make the limit base 2 and the limiting member 5 more structurally robust and better able to withstand the forces and torques generated during rotation, but also ensure a closer and more precise fit between the detent 3 and the first limit hole 521. This design can reduce the fitting error caused by the thickness difference, thereby improving the reliability of the limit function. At the same time, since the thicknesses of the limit base 2 and the limiting member 5 are the same, it is easier to align and fix during assembly. This design reduces the adjustment and calibration work during the assembly process and improves the assembly work. In addition, the thinner design of the rotating inner disk 4 and the rotating outer disk 1 can reduce the thickness of the overall structure, making the entire rotatable and limitable member 100 more compact. At the same time, the thinner rotating inner disk 4 and rotating outer disk 1 can reduce the material usage, thereby reducing the production cost.

[0045] If the thickness of the rotating outer disk 1, the rotating inner disk 4, and the limiting base 2 along the direction X from the rotating inner disk 4 to the rotating outer disk 1 is too thick, it will increase the space occupation. However, if it is too thin, the strength of the rotating outer disk 1, the rotating inner disk 4, and the limiting base 2 will be insufficient. Therefore, the thickness range of the rotating inner disk 4 and the rotating outer disk 1 can be 0.8mm - 1.2mm, which can not only reduce the space occupation but also ensure that the rotating inner disk 4 and the rotating outer disk 1 have sufficient strength, thereby enhancing the strength of the rotatable limiting member. The thickness of the rotating inner disk 4 and the rotating outer disk 1 along the direction X from the rotating inner disk 4 to the rotating outer disk 1 can be 0.8mm, 0.9mm, 1mm, 1.1mm, or 1.2mm. The thickness range of the limiting base 2 along the direction X from the rotating inner disk 4 to the rotating outer disk 1 is 1.5mm - 2mm, which can not only reduce the space occupation but also ensure that the limiting base 2 has sufficient strength, thereby enhancing the strength of the rotatable limiting member. The thickness of the limiting base 2 along the direction X from the rotating inner disk 4 to the rotating outer disk 1 is 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, or 2.0mm.

[0046] Optionally, the diameter of the first circular structure is the same as that of the second circular structure. Adopting this solution can not only ensure a closer and more precise fit between the detent 3 and the first limiting hole 521, such as the detent 3 can accurately fit into the first limiting hole 521 to achieve an accurate limiting function, but also make it easier to align the limiting base 2 and the limiting member 5 during assembly, that is, reduce the adjustment and calibration work during the assembly process, improve the assembly efficiency, and make the overall structure more coordinated and compact in appearance.

[0047] In an optional embodiment, in combination with Figure 4 、 Figure 6 and Figure 12 shown, Figure 12 is a schematic structural diagram of a sound insulation pad provided by the present invention; a sound insulation pad 6 is provided on the side of the limiting member 5 away from the limiting base 2. The sound insulation pad 6 is a circular pad. Along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the orthographic projection of the sound insulation pad 6 completely overlaps with the orthographic projection of the second circular structure. A notch 61 corresponding to the first limiting hole 521 is provided at the edge of the circular pad. The shape of the notch 61 is U-shaped, and the notch 61 is recessed towards the center of the circular pad.

[0048] Specifically, the above-mentioned sound insulation pad 6 is installed on the side of the limiting member 5 away from the limiting base 2. For example, the sound insulation pad 6 is directly bonded to the side of the limiting member 5 away from the limiting base 2. Specifically, the sound insulation pad 6 is pasted on the limiting member 5 with double-sided tape. During rotation, this sound insulation pad 6 can fill the gap between the limiting member 5 and the cabinet body, and the noise can be reduced when the ball catch 3 is snapped into the second limiting hole 23 of the limiting member 5. That is, during rotation, the sound insulation pad 6 is located between the limiting member 5 and the second hollow portion 430. Since when the rotatable limiting member is assembled to the cabinet body, a cavity is formed between the limiting member 5 and the cabinet body separated by the rotating inner disc 4, but when the ball catch 3 rotates into the first limiting hole 521, the cavity may amplify the impact sound when the ball catch 3 pops out. By filling the cavity formed between the limiting member 5 and the cabinet body with the sound insulation pad 6, the impact sound when the ball catch 3 pops out can be reduced. The sound insulation pad 6 can be a circular pad, and its shape matches the second circular structure of the limiting member 5. Along the direction X from the rotating inner disc 4 to the rotating outer disc 1, the orthographic projection of the sound insulation pad 6 completely overlaps with the orthographic projection of the second circular structure of the limiting member 5. That is, the sound insulation pad 6 completely covers the surface of the limiting member 5, ensuring that during rotation, the impact sound when the ball catch 3 pops out can be more effectively reduced. Optionally, the material of the sound insulation pad 6 can be silicone or rubber. A notch 61 corresponding to the first limiting hole 521 is provided at the edge of the sound insulation pad 6. The shape of the notch 61 can be U-shaped, and the notch 61 is recessed towards the center of the circular pad, ensuring that the ball catch 3 can pass through the first limiting hole 521 smoothly, and at the same time, the sound insulation pad 6 does not hinder the movement of the ball catch 3. Through the notch 61, when the ball catch 3 enters and exits the first limiting hole 521, the sound insulation pad 6 does not interfere with the ball catch 3, thereby ensuring the normal operation of the limiting function. With the above solution, the sound insulation pad 6 can not only reduce the noise generated during rotation, but also ensure that the sound insulation pad 6 covers the entire surface of the limiting member 5, avoiding the failure of the limiting function caused by the inaccurate position of the sound insulation pad 6. By corresponding the U-shaped notch 61 to the first limiting hole 521 and recessing it towards the center, it is ensured that the ball catch 3 can pass through the first limiting hole 521 smoothly and does not hinder the movement of the ball catch 3, thereby ensuring the high precision and reliability of the limiting function. In addition, the circular design of the sound insulation pad 6 and its complete overlapping projection with the limiting member 5 make the entire structure more compact.

[0049] Optionally, continue to refer to Figure 4 , Figure 10 and Figure 11As shown, along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the orthographic projection of the first hollow portion 120 is located within the orthographic projection of the second hollow portion 430, that is, the diameter of the first hollow portion 120 is smaller than the diameter of the second hollow portion 430. With this solution, not only can the alignment of the first hollow portion 120 and the second hollow portion 430 in space be ensured, making the relative movement between the rotating inner disk 4 and the rotating outer disk 1 smoother, reducing friction or jamming caused by inaccurate alignment, but also it is easier to achieve precise alignment during the assembly process, that is, reducing the assembly error and improving the assembly efficiency, while ensuring a tighter and more precise fit between the catch 3 and the first limiting hole 521. The relative movement between the rotating inner disk 4 and the rotating outer disk 1 is smoother, reducing rotation jamming or abnormal noise caused by structural interference, and facilitating the insertion of the first insertion portion 51 and the second insertion portion 53.

[0050] In an optional embodiment, the bearing portion 12 is provided with a first bearing hole 121 and a second bearing hole 122. The first bearing hole 121 and the second bearing hole 122 are respectively arranged around the first hollow portion 120. The second bearing hole 122 is located closer to the first hollow portion 120 than the first bearing hole 121. The first bearing hole 121 and the second bearing hole 122 penetrate through the bearing portion 12 along the direction X from the rotating inner disk 4 to the rotating outer disk 1; a connecting hole 431 is provided on the connecting portion 43 and is arranged around the second hollow portion 430. Along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the connecting hole 431 penetrates through the connecting portion 43, and the orthographic projection of the connecting hole 431 does not overlap with the orthographic projection of the second bearing hole 122 at all; the limiting base 2 is provided with a second limiting hole 23 and a base hole 21. Along the direction from the rotating inner disk 4 to the rotating outer disk 1, the orthographic projection of the base hole 21 completely overlaps with the orthographic projection of the second bearing hole 122, the orthographic projection of the catch 3 completely overlaps with the orthographic projection of the second limiting hole 23, and the second limiting hole 23 and the base hole 21 penetrate through the limiting base 2 along the direction X from the rotating inner disk 4 to the rotating outer disk 1.

[0051] Specifically, in combination with Figure 6 and Figure 10 As shown, the bearing portion 12 is provided with a first bearing hole 121 and a second bearing hole 122. The first bearing hole 121 and the second bearing hole 122 are respectively arranged around the first hollow hole, and the second bearing hole 122 is located at a position closer to the first hollow portion 120 than the first bearing hole 121.

[0052] The first fastener 54 connects the bearing part 12 in the limit base 2 and the rotating outer disc 1 together, thereby fixedly connecting the limit base 2 to the rotating outer disc 1. The first fastener 54 includes a screw rod 541 and a nut 542 threadedly connected to the screw rod 541. The screw rod 541 sequentially passes through the base hole 21 of the limit base 2 and the second bearing hole 122 corresponding to the base hole 21, and then the nut 542 is threadedly screwed onto the screw rod 541. The number of the first fasteners 54 can be 2, and the 2 first fasteners 54 are symmetrically distributed, which can not only improve the connection strength and stability between the limit base 2 and the rotating outer disc 1, but also enhance the symmetry and balance of the structure.

[0053] The first bearing hole 121 is used to provide a channel for installing the second fastener 22. The second fastener 22 passes through the first bearing hole 121 to fixedly connect the first plugging part 51 and the second plugging part 53 in the limiting member 5 with the connecting part 43 and between the connecting part 43 and the cabinet body (such as the top plate of the cabinet body, or the bottom plate of the cabinet body, or the top plate and the bottom plate of the cabinet body), thereby fixedly connecting the limiting member 5 with the rotating inner disc 4 and between the rotating inner disc 4 and the cabinet body.

[0054] The number of the second fasteners 22 can be the same as the number of the first bearing holes. For example, the number of the second fasteners 22 is 4, and the 4 second fasteners 22 are symmetrically distributed to fixedly connect the limiting member 5 with the rotating inner disc 4 and between the rotating inner disc 4 and the cabinet body, so as to improve the connection strength and stability between the limiting member 5 and the rotating inner disc 4 and between the rotating inner disc 4 and the cabinet body, and enhance the symmetry and balance of the structure.

[0055] The second fastener 22 can be a locking screw (used to connect the limiting member 4, the rotating inner disc 4 and the cabinet body together). The locking screw passes through the first bearing hole 121, sequentially passes through the plugging holes 512 of the first plugging part 51 and the second plugging part 53 in the limiting piece 5, the connecting hole 431 in the connecting part 43 of the rotating inner disc 4, and the corresponding holes in the bottom plate of the cabinet body, and then is threadedly connected with the locking nut on the cabinet body to ensure the firmness of the connection and the anti-loosening function. In this embodiment, the number of the second fasteners 22 is 4. Among them, 2 second fasteners 22 pass through the plugging holes 512 of the first plugging part 51 and the second plugging part 53 in the limiting member 5 and are fixed on the bottom plate of the cabinet body, and the other 2 skip the limiting member 5 and directly fix the rotating inner disc 4 on the bottom plate of the cabinet body through the connecting hole 431 in the connecting part 43 of the rotating inner disc 4.

[0056] Optionally, continue to refer to Figure 10As shown, the number of the first bearing holes 121 may be less than that of the second bearing holes 122. In this embodiment, the number of the first bearing holes 121 is taken as 4, and the number of the second bearing holes 122 is taken as 8 for illustration. Along the circumferential direction of the first hollow disc structure, each first bearing hole 121 may be located between adjacent second bearing holes 122.

[0057] Continue to refer to Figure 11 As shown, a connection hole 431 is formed in the connection part 43 around the second hollow part 430. The connection hole 431 penetrates through the connection part 43 along the direction X from the rotary inner disc 4 to the rotary outer disc 1. The orthographic projection of the connection hole 431 does not overlap with the orthographic projection of the second bearing hole 122 at all, so that the connection part 43 and the bearing part 12 are separated in space to avoid interference. Continue to refer to Figure 9 As shown, a base hole 21 corresponding to the second bearing hole 122 is formed in the limit base 2. The base hole 21 penetrates through the limit base 2 along the direction X from the rotary inner disc 4 to the rotary outer disc 1. The limit base 2 is fixed to the rotary outer disc 1 through the base hole 21 and the second bearing hole 122 to ensure the stability of the limit base 2 and the consistency of the rotary motion.

[0058] Adopting the above scheme, through the design of the first bearing holes 121, the second bearing holes 122 and the base holes 21, not only can the stability of the whole structure during rotation or bearing be ensured, but also the correct alignment of the rotary outer disc 1, the limit base 2, the limiting member 5 and the rotary inner disc 4 in space can be ensured to avoid interference and friction. Moreover, the force and torque can be effectively transmitted to support the rotary motion, and at the same time, the space layout is optimized to ensure that the above different components can work effectively in a limited space.

[0059] In an alternative embodiment, continue to refer to Figure 10 As shown, the shapes of the first bearing holes 121 and the second bearing holes 122 are circular respectively, and the diameter of the first bearing hole 121 is larger than that of the second bearing hole 122. Adopting this scheme, making the diameter of the first bearing hole 121 larger than that of the second bearing hole 122 is not only beneficial to passing the second fastener 22 through and facilitating the disassembly and assembly of the second fastener 22, but also can reduce the weight of the bearing part 12, thereby reducing the weight of the rotary outer disc 1.

[0060] In an alternative embodiment, the first insertion portion 51 and the second insertion portion 53 are arranged in mirror symmetry. The shapes of the first insertion portion 51 and the second insertion portion 53 are respectively arc trapezoids. The first insertion portion 51 and the second insertion portion 53 both include an upper bottom surface 510 and a lower bottom surface 511. The lower bottom surface 511 is located on the side of the upper bottom surface 510 close to the second hollow portion 430. The lower bottom surface 511 and the upper bottom surface 510 are respectively arc surfaces protruding away from the second circular structure. The first insertion portion 51 and the second insertion portion 53 are both provided with insertion holes 512 corresponding to the first bearing holes 121. Second fasteners 22 are respectively connected between the second insertion portion 53 and its corresponding connecting portion 43 and between the first insertion portion 51 and its corresponding connecting portion 43.

[0061] Specifically, as shown in Figure 4 and Figure 8 , arranging the first insertion portion 51 and the second insertion portion 53 in mirror symmetry can ensure the balance and uniform force of the limiting member 5, and improve the stability and durability of the rotatable member 100 that can be limited. The shapes of the first insertion portion 51 and the second insertion portion 53 are arc trapezoids. The arc trapezoid is beneficial to matching the annular space between the bearing portion 12 and the connecting portion 43. The first insertion portion 51 and the second insertion portion 53 both include an upper bottom surface 510 and a lower bottom surface 511. The lower bottom surface 511 is located on the side of the upper bottom surface 510 close to the second hollow portion 430. The lower bottom surface 511 and the upper bottom surface 510 are respectively arc surfaces protruding away from the second circular structure. The arc length of the upper bottom surface 510 is less than the arc length of the lower bottom surface 511. The arc length of the lower bottom surface 511 partially coincides with the second circular structure. It can be understood that the lower bottom surface 511 is a part of the second circular structure. The apex angle between the upper bottom surface 510 and the two inclined surfaces can be a rounded corner.

[0062] Insertion holes 512 corresponding to some of the first bearing holes 121 are provided in both the first insertion portion 51 and the second insertion portion 53. Second fasteners 22 are respectively connected between the first insertion portion 51 and its corresponding connecting portion 43 and between the second insertion portion 53 and its corresponding connecting portion 43. In this embodiment, the number of the second fasteners 22 is 4. Among them, the first second fastener 22 first passes through the first bearing hole 121 corresponding to it, and then passes through the insertion hole 512 of the first insertion portion 51 and the connection hole 431 of the connecting portion 43, so that the first insertion portion 51, the rotating inner disc 4 and the cabinet body are fixedly connected; the second second fastener 22 first passes through the first bearing hole 121 corresponding to it, and then passes through the insertion hole 512 of the second insertion portion 53 and the connection hole 431 of the connecting portion 43, so that the second insertion portion 53, the rotating inner disc 4 and the cabinet body are fixedly connected; the remaining two second fasteners 22 are directly fixedly connected to the cabinet body through the connection holes 431.

[0063] Adopting the above solution can not only ensure the fixation and connection between the limiting member 5 and the rotating inner disk 4, prevent relative movement or separation, but also contribute to improving the structural stability and durability, while effectively transmitting force and torque to support the rotational movement. In addition, the spatial layout is optimized to ensure that each component works effectively within a limited space while maintaining the compactness of the structure.

[0064] Optionally, as shown in Figure 4 and Figure 5 , a first fastener 54 is connected between the limiting base 2 and the bearing part 12 through a base hole 21 and a second bearing hole 122. Using the first fastener 54 can not only firmly connect the limiting base 2 and the bearing part 12 together, ensuring the stability and reliability of the entire structure, that is, preventing the components from shifting or loosening during use and improving the durability of the overall structure; but also effectively transmit the force and load borne by the bearing part 12 to the limiting base 2, ensuring uniform load distribution and avoiding local overload or damage; at the same time, it can simplify the assembly process and make the connection between the limiting base 2 and the bearing part 12 more convenient and fast. If maintenance or component replacement is required, the first fastener 54 is also easy to disassemble.

[0065] Referring to Figure 13 and Figure 14 shown, Figure 13 is a schematic flow chart of an assembly method for a rotatable member with a limit provided by the present invention; Figure 14 is a simplified flow chart of an assembly method for a rotatable member with a limit provided by the present invention; This embodiment provides an assembly method for a rotatable member 100 with a limit, including:

[0066] Step 100 is a rotatable limiting member 100, which includes a rotating outer disc 1, a limiting base 2, a detent 3, a limiting member 5, a rotating inner disc 4, and a sound-absorbing pad 6. The rotating outer disc 1 and the rotating inner disc 4 are parallel, and the rotating outer disc 1 is located below the rotating inner disc 4. Among them, the rotating outer disc 1 is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion 10, a first accommodating portion 11, and a bearing portion 12 that are sequentially connected. The positive projections of the covering portion 10, the first accommodating portion 11, and the bearing portion 12 along the direction from the rotating inner disc 4 to the rotating outer disc 1 are all annular, and the first hollow disc structure has a first hollow portion 120; the first accommodating portion 11 is recessed toward the side away from the rotating inner disc 4 to form an arc surface. Along the direction X from the rotating inner disc 4 to the rotating outer disc 1, the cross-sectional shape of the covering portion 10 is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion 120. The cross-sectional shape of the bearing portion 12 is a rectangle; a first hollow portion 120 is opened in the middle of the bearing portion 12, and the first hollow portion 120 penetrates through the bearing portion 12 along the direction X from the rotating inner disc 4 to the rotating outer disc 1; the rotating inner disc 4 is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion 41, a second accommodating portion 42, and a connecting portion 43 that are sequentially connected. The positive projections of the clamping portion 41, the second accommodating portion 42, and the connecting portion 43 along the direction from the rotating inner disc 4 to the rotating outer disc 1 are all annular. The clamping portion 41 corresponds to the covering portion 10. Along the direction from the rotating inner disc 4 to the rotating outer disc 1, the positive projection of the second accommodating portion 42 completely overlaps with the positive projection of the first accommodating portion 11; the clamping portion 41 of the U-shaped structure is clamped within the U-shaped structure through the opening of the U-shaped structure. The second accommodating portion 42 protrudes toward the side away from the rotating outer disc 1 to form an arc surface. A second hollow portion 430 is opened on the connecting portion 43, and the second hollow portion 430 penetrates through the connecting portion 43 along the direction X from the rotating inner disc 4 to the rotating outer disc 1. A circular accommodating space is formed between the first accommodating portion 11 and the second accommodating portion 42, and a metal ball 7 is arranged in the accommodating space; the limiting base 2 is a first circular structure, which is connected to the side of the bearing portion 12 close to the connecting portion 43. At least two detents 3 are arranged on the first circular structure, and the at least two detents 3 are arranged along the circumferential direction of the first circular structure, and the detent 3 passes through the first hollow portion 120; the limiting member 5 includes a first inserting portion 51, a limiting portion 52, and a second inserting portion 53 that are sequentially connected. The limiting portion 52 is a second circular structure, and at least two first limiting holes 521 are opened on the second circular structure. The at least two first limiting holes 521 are arranged along the circumferential direction of the second circular structure. The first limiting holes 521 cooperate with the detent 3. Both the first inserting portion 51 and the second inserting portion 53 are inserted into the gap between the bearing portion 12 and the connecting portion 43, and the first inserting portion 51 and the second inserting portion 53 are respectively fixedly connected to the corresponding connecting portion 43. When the connecting portion 43 rotates relative to the bearing portion 12, the limiting ball 3 pops out of the first limiting hole 521;A sound-absorbing pad 6 is provided on the side of the limiting member 5 away from the limiting base 2. The sound-absorbing pad 6 is a circular pad. Along the direction X from the rotating inner disk 4 to the rotating outer disk 1, the orthographic projection of the sound-absorbing pad 6 completely overlaps with the orthographic projection of the second circular structure. A notch 61 corresponding to the first limiting hole 521 is formed at the edge of the circular pad. The shape of the notch 61 is U-shaped, and the notch 61 is recessed toward the center of the circular pad.

[0067] Step 101: Provide the rotating inner disk 4, the rotating outer disk 1, and the metal balls 7. Arrange the metal balls 7 (such as steel balls) along the circumferential direction in the first accommodating portion 11 of the rotating outer disk 1. Snap the clamping portion 41 of the rotating inner disk 4 onto the covering portion 10 of the rotating outer disk 1. The metal balls 7 are located in the gap between the first accommodating portion 11 of the rotating outer disk 1 and the second accommodating portion 42 of the rotating inner disk 4. Bend the covering portion 10 of the rotating outer disk 1 to clamp the clamping portion 41 of the rotating inner disk 4. Specifically, as shown in Figure 4 , Figure 13 and Figure 14 The above-mentioned rotating inner disk 4 and rotating outer disk 1 are the main components of the rotating part. The rotating inner disk 4 and the rotating outer disk 1 achieve the rotating function through the metal balls 7. The rotating inner disk 4 and the rotating outer disk 1 can be processed by stamping 1mm steel plates. The four sides of the rotating outer disk 1 are edged by a rotating edging machine. In this embodiment, the rotating inner disk 4 and the rotating outer disk 1 are respectively made of 1mm thick steel plates and formed by stamping. The edge of the rotating outer disk 1 is processed by a rotating edging machine to enhance the structural strength and aesthetics.

[0068] Arrange the steel balls in the first accommodating portion 11 of the rotating outer disk 1. Snap the rotating inner disk 4 onto the rotating outer disk 1 so that the steel balls are located in the gap between the second accommodating portion 42 of the rotating inner disk 4 and the first accommodating portion 11 of the rotating outer disk 1. Arrange the steel balls along the circumferential direction in the first accommodating portion 11 of the rotating outer disk 1. These steel balls are used to reduce the friction during rotation and support the rotating motion, that is, snap on the rotating inner disk 4, and bend the covering portion 10 of the rotating outer disk 1 to clamp the clamping portion 41 of the rotating inner disk 4 to ensure the connection between the rotating inner disk 4 and the rotating outer disk 1. Place the above-mentioned steel balls in the gap between the first accommodating portion 11 of the rotating outer disk 1 and the second accommodating portion 42 of the rotating inner disk 4 to form a rolling support during rotation.

[0069] Step 102 provides a limit base 2 and a detent 3. Place at least two detents 3 on the limit base 2 respectively, and connect the limit base 2 to the bearing part 12 of the rotating outer disc 1. Specifically, the detent 3 is a standard part and can be directly purchased in the market. The limit base 2 is used to provide fixed support for the detent to ensure its accurate position, and can also serve as the detent base. The limit base 2 can be made of 2-mm steel plate. In this embodiment, four detents are taken as an example. A rectangular structure is formed among the four detents. Place the four detents into the limit base 2, and place the limit base 2 on the receiving part of the rotating outer disc 1 close to the insertion part of the rotating inner disc 4 to ensure the fixation of the limit base 2. Use the first fastener 54 to fix the limit base 2 on the rotating outer disc 1. The cooperation between the above-mentioned detent 3 and the limiting member 5 realizes the limitation of the rotation angle. It can be understood that: the fixing method of the screw and the nut ensures the tight combination of the detent base and the rotating outer disc 1 and prevents loosening.

[0070] Step 103 provides a limiting member 5. Clamp the limiting member 5 between the clamping part 41 of the rotating inner disc 4 and the bearing part 12 of the rotating outer disc 1, and connect the first insertion part 51 and the second insertion part 53 in the limiting member 5 to the clamping part 41 of the rotating inner disc 4. For example, use the second fastener 22 to connect the insertion holes 512 of the first insertion part 51 and the second insertion part 53 in the limiting member 5 to the connection holes 431 of the clamping part 41 of the rotating inner disc 4.

[0071] The above-mentioned limiting member 5 can be a limiting piece, which cooperates with the limiting ball 3 installed on the limiting base 2 to limit the rotation angle of the rotatable member 100 that can be limited. The limiting piece can be processed from a steel plate with a thickness of 2 mm. When installing the limiting piece, it is divided into three steps: a: Obliquely insert the limiting member 5 into the second hollow portion 430 of the rotating inner disc 4; b: Continue the operation until the limiting member 5 is completely embedded in the second hollow portion 430 of the rotating inner disc 4; c: Horizontally move the limiting member 5 in the reverse direction so that it is stuck between the connecting portion 43 of the rotating inner disc 4 and the receiving portion of the rotating outer disc 1 to ensure the fixation of the limiting member 5. The operations of oblique insertion, embedding, and reverse movement are to ensure the correct installation and firm clamping of the limiting member 5. Align the insertion holes 512 of the first insertion portion 51 and the second insertion portion 53 in the limiting member 5, the connecting hole 431, and the first bearing hole 121, and install the second fastener 22 (for example, the insertion holes 512 at both ends of the limiting member 5 are aligned with the connecting hole 431 of the rotating inner disc 4, the four connecting holes 431 of the rotating inner disc 4 are aligned with the first bearing hole 121 of the rotating outer disc 1. The second fastener 22 first passes through the first bearing hole 121 of the rotating outer disc 1, and then the second fastener 22 connects the connecting hole 431 of the rotating inner disc 4 through the insertion hole 512). In the limiting member 5, only the locking screw is connected to the connecting hole 431 of the clamping portion 41 of the first insertion portion 51 and the second insertion portion 53 and the rotating inner disc 4. When assembled into the cabinet body later, a locking nut is installed in the cabinet body, and the locking nut is threadedly connected to the locking screw. The locking screw is used to fix the rotating inner disc 4 on the cabinet body to further ensure the stability among the limiting piece, the rotating inner disc, and the cabinet body. Rotate the rotating inner disc 4 by an angle in any direction, and clamp the top cap of the second fastener 22 between the connecting portion 43 of the rotating inner disc 4 and the bearing portion 12 of the rotating outer disc 1, without occupying extra space.

[0072] Step 104 provides a sound-absorbing pad 6, and a sound-absorbing pad 6 is bonded to the side of the limiting member 5 away from the limiting base 2. Specifically, provide a sound-absorbing pad 6 and bond the sound-absorbing pad 6 to the side of the limiting member 5 away from the limiting base 2 to reduce noise and vibration during rotation. The sound-absorbing pad 6 is made of silica gel material, and the back is pasted on the catch limiting piece with double-sided tape. During the rotation process, the sound-absorbing pad 6 fills the gap between the limiting member 5 and the cabinet body. When the catch 3 is inserted into the first limiting hole 521, the sound-absorbing pad 6 can reduce noise. The sound-absorbing pad 6 is used to reduce the noise generated during the rotation process and improve the use experience. The silica gel material has good elasticity. The sound-absorbing pad is used to fill the cavity formed between the limiting member 5 and the cabinet body, and can reduce noise when the catch 3 collides with the limiting member 5. After the sound-absorbing pad 6 is installed, check whether all components are firmly installed, and test the rotation function and the limiting function to ensure normal operation. The inspection and testing are to ensure the assembly quality of the rotatable member 100 that can be limited.

[0073] Compared with the prior art, the assembly method of the rotatable member 100 that can be limited provided in this embodiment has at least achieved the following beneficial effects:

[0074] The assembling method of the rotatable part 100 with limited position provided in this embodiment is used to assemble the above-mentioned rotatable part 100 with limited position, and includes the following steps: providing a rotating inner disc 4, a rotating outer disc 1 and metal balls 7, arranging the metal balls 7 along the circumferential direction in the first accommodating part 11 of the rotating outer disc 1, buckling the clamping part 41 of the rotating inner disc 4 to the covering part 10 of the rotating outer disc 1, and the steel balls are located in the gap between the first accommodating part 11 of the rotating outer disc 1 and the second accommodating part 42 of the rotating inner disc 4, and bending the covering part 10 of the rotating outer disc 1 to clamp the clamping part 41 of the rotating inner disc 4; providing a limiting base 2 and a detent ball 3, placing at least two detent balls 3 on the limiting base 2 respectively, and connecting the limiting base 2 to the bearing part 12 of the rotating outer disc 1; providing a limiting part 5, clamping the limiting part 5 between the clamping part 41 of the rotating inner disc 4 and the bearing part 12 of the rotating outer disc 1, and connecting the insertion holes 512 of the first insertion part 51 and the second insertion part 53 in the limiting part 5 to the connection holes 431 of the clamping part 41 of the rotating inner disc 4 by using the second fastener 22; providing a sound insulation pad 6, and bonding a sound insulation pad 6 on the side of the limiting part 5 away from the limiting base 2; adopting the above scheme can ensure the assembly quality of the rotatable part 100 with limited position, realize its rotation and limiting functions, and at the same time reduce noise through the design of the sound insulation pad 6 and improve the use experience.

[0075] Refer to Figure 2 、 Figure 15 、 Figure 16 、 17 and Figure 18 as shown in Figure 15 FIG. 16 is a schematic structural diagram of a rotatable cabinet with limited position provided by the present invention; Figure 16 FIG. 18 is a schematic structural diagram of the rotating state of a rotatable cabinet with limited position provided by the present invention; Figure 17 FIG. 20 is a schematic flow chart of an assembling method of a rotatable cabinet with limited position provided by the present invention; Figure 18 FIG. 22 is a simplified flow chart of an assembling method of a rotatable part with limited position provided by the present invention; This embodiment provides an assembling method of a rotatable cabinet 200 with limited position, and assembling the rotatable cabinet 200 with limited position includes:

[0076] Step 200, a rotatable cabinet 200 with limited position, including a first cabinet body 201, at least one second cabinet body 202 and a third cabinet body 203. The first cabinet body 201, at least one second cabinet body 202 and the third cabinet body 203 are respectively hollow rectangular bodies with openings. The adjacent first cabinet body 201 and the second cabinet body 202, and the second cabinet body 202 and the third cabinet body 203 are respectively connected by rotatable position-limiting members. The rotatable position-limiting member includes a rotating outer disc 1, a position-limiting base 2, a detent 3, a position-limiting member 5 and a rotating inner disc 4. The rotating outer disc 1 and the rotating inner disc 4 are parallel, and the rotating outer disc 1 is located below the rotating inner disc 4. Among them, the rotating outer disc 1 is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion 10, a first accommodating portion 11 and a bearing portion 12 connected in sequence. The positive projections of the covering portion 10, the first accommodating portion 11 and the bearing portion 12 along the direction from the rotating inner disc 4 to the rotating outer disc 1 are all annular. The first hollow disc structure has a first hollow portion 120; the first accommodating portion 11 is recessed towards the side away from the rotating inner disc 4 to form an arc surface. Along the direction X from the rotating inner disc 4 to the rotating outer disc 1, the cross-sectional shape of the covering portion 10 is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion 120. The cross-sectional shape of the bearing portion 12 is rectangular; a first hollow portion 120 is provided in the middle of the bearing portion 12, and the first hollow portion 120 penetrates the bearing portion 12 along the direction X from the rotating inner disc 4 to the rotating outer disc 1; the rotating inner disc 4 is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion 41, a second accommodating portion 42 and a connecting portion 43 connected in sequence. The positive projections of the clamping portion 41, the second accommodating portion 42 and the connecting portion 43 along the direction from the rotating inner disc 4 to the rotating outer disc 1 are all annular. The clamping portion 41 corresponds to the covering portion 10. Along the direction from the rotating inner disc 4 to the rotating outer disc 1, the positive projection of the second accommodating portion 42 completely overlaps with the positive projection of the first accommodating portion 11; the clamping portion 41 of the U-shaped structure is clamped in the U-shaped structure. The second accommodating portion 42 protrudes towards the side away from the rotating outer disc 1 to form an arc surface. A second hollow portion 430 is provided on the connecting portion 43, and the second hollow portion 430 penetrates the connecting portion 43 along the direction X from the rotating inner disc 4 to the rotating outer disc 1. A circular accommodating space is formed between the first accommodating portion 11 and the second accommodating portion 42, and a metal ball 7 is arranged in the accommodating space; the position-limiting base 2 is a first circular structure, which is connected to the side of the bearing portion 12 close to the connecting portion 43. At least two detents 3 are arranged on the first circular structure. The at least two detents 3 are arranged along the circumferential direction of the first circular structure, and the detents 3 pass through the first hollow portion 120;The limiting member 5 includes a first insertion portion 51, a limiting portion 52, and a second insertion portion 53 that are connected in sequence. The limiting portion 52 is a second circular structure, and at least two first limiting holes 521 are provided on the second circular structure. The at least two first limiting holes 521 are arranged along the circumferential direction of the second circular structure. The first limiting holes 521 cooperate with the catch 3. Both the first insertion portion 51 and the second insertion portion 53 are inserted into the gap between the bearing portion 12 and the connecting portion 43. The first insertion portion 51 and the second insertion portion 53 are respectively fixedly connected to the corresponding connecting portion 43. When the connecting portion 43 rotates relative to the bearing portion 12, the limiting ball 3 pops out of the first limiting hole 521; The first cabinet body 201, the second cabinet body 202, and the third cabinet body 203 are arranged in the direction X from the rotating inner disk 4 to the rotating outer disk 1;

[0077] Specifically, the above-mentioned limitable rotating cabinet 200 is applicable to various types of cabinet bodies such as drawer cabinets, door cabinets, and mirror cabinets. In this embodiment, only the drawer cabinet is taken as an example for illustration. It enables the cabinet bodies of different layers to rotate independently and can be limited at a fixed angle set by the user, such as a 45-degree limit. This design provides flexibility and convenience, allowing the user to adjust the rotation angle of the cabinet body according to personal needs and space layout, thereby optimizing the efficiency of storage and retrieval. The above-mentioned first cabinet body 201, second cabinet body 202, and third cabinet body 203 are the main components of the limitable rotating cabinet 200. The first cabinet body 201, second cabinet body 202, and third cabinet body 203 are all hollow rectangular bodies with an opening. The limitable rotating member is a component for connecting adjacent first cabinet body 201, second cabinet body 202, and third cabinet body 203, allowing the first cabinet body 201, second cabinet body 202, and third cabinet body 203 to rotate within a certain angle and can be fixed at a specific position. For example, the first cabinet body 201 and the second cabinet body 202 and the second cabinet body 202 and the third cabinet body 203 are connected by the limitable rotating member, that is, each cabinet body can rotate independently without affecting other cabinet bodies. The above-mentioned first cabinet body 201, second cabinet body 202, and third cabinet body 203 are arranged in the direction X from the rotating inner disk 4 to the rotating outer disk 1, which helps to optimize space utilization and improve the convenience of accessing items. The first cabinet body 201 can be located at the top layer of the limitable rotating cabinet 200, the third cabinet body 203 can be located at the bottom layer of the limitable rotating cabinet 200, and the second cabinet body 202 is located between the first cabinet body 201 and the third cabinet body 203. The number of the second cabinet body 202 can be one, or two or more. The number of the second cabinet body 202 is increased or decreased according to the actual situation. In this embodiment, only one second cabinet body 202 is taken as an example for illustration. The first cabinet body 201, the second cabinet body 202, or the first cabinet body 201 and the second cabinet body 202 can be fixed at a specific angle (such as 45 degrees) to prevent excessive rotation and ensure the safety and stability of use. In this embodiment, since there is only one second cabinet body 202, the number of the limitable rotating members is two, namely the first limitable rotating member 101 and the second limitable rotating member 102.

[0078] By means of rotation and limiting, not only can the limited space be utilized more effectively, but also users can easily access the contents of the first cabinet 201, the second cabinet 202, and / or the third cabinet 203 without moving other cabinets, improving the convenience of storing and retrieving items. At the same time, the position of each cabinet can be adjusted according to needs to adapt to different storage requirements and space layouts. In addition, the rotation of the rotatable cabinet 200 with a limit is prevented by the limit, reducing the risk of accidental collision or damage.

[0079] Step 201 provides the third cabinet 203 and the first rotatable member with a limit 101. The third cabinet 203 includes a first top plate 2031. A first top plate hole 20310 is formed by drilling a hole in the first top plate 2031 of the third cabinet 203. Along the direction X from the first cabinet 201 to the third cabinet 203, the first top plate hole 20310 penetrates the first top plate 2031. The first top plate hole 20310 corresponds to the ball catch 3, the second bearing hole 122, and the first fastener 54 in the first rotatable member with a limit 101.

[0080] Specifically, the above-mentioned third cabinet 203 is the bottommost cabinet, and the number of it is one. A first top plate hole 20310 is pre-drilled in the first top plate 2031 of the bottommost cabinet. The position of the first top plate hole 20310 is ensured to correspond to the ball catch 3 and the nut 542 in the first fastener 54 of the first rotatable member with a limit 101. The above-mentioned direction X from the first cabinet 201 to the third cabinet 203 is the same as the direction X from the rotating inner disc 4 to the rotating outer disc 1.

[0081] The above-mentioned drilling is to ensure that the first rotatable member with a limit 101 can be accurately installed on the third cabinet 203, and at the same time provide an installation position for the subsequent ball catch 3 and the first fastener 54, that is, the nut 542 in the first fastener 54 corresponds to the first top plate hole 20310, and can avoid the nut 542 in the first fastener 54.

[0082] Step 202 Threadedly connects the first top plate 2031 and the rotating outer disc 1 in the first rotatable member with a limit 101 through the first top plate hole 20310. For example, use 6 self-tapping screws to fix the rotating outer disc 1 in the first rotatable member with a limit 101 on the first top plate 2031.

[0083] The above-mentioned self-tapping screws are used to firmly install the first rotatable member with a limit 101 on the third cabinet 203 to prevent it from loosening during use.

[0084] Step 203 provides a second cabinet body 202 and a second limitable rotating member 102. The second cabinet body 202 includes a second top plate 2021 and a first bottom plate 2022 arranged in parallel. Holes are drilled in the second top plate 2021 and the first bottom plate 2022 respectively to form a second top plate hole 20210 and a first bottom plate hole 20220. Along the direction X from the first cabinet body 201 to the third cabinet body 203, the second top plate hole 20210 and the first bottom plate hole 20220 penetrate through the second top plate 2021 and the first bottom plate 2022 respectively. The first bottom plate hole 20220 corresponds to the connection hole 431 in the first limitable rotating member 101, and the second top plate hole 20210 corresponds to the catch 3, the second bearing hole 122, and the first fastener 54 (such as the nut 542 in the first fastener 54) in the second limitable rotating member 102, so that the first bottom plate hole 20220 corresponds to the connection hole 431 in the rotating inner disk 4 of the first limitable rotating member 101, and it is ensured that the second top plate hole 20210 in the second top plate 2021 of the second cabinet body 202 corresponds to the catch 3, the second bearing hole 122, and the first fastener 54 (such as the nut 542 in the first fastener 54) in the second limitable rotating member 102;

[0085] The installation of the second cabinet body 202 needs to ensure that the second top plate hole 20210 on the second top plate 2021 and the first bottom plate hole 20220 on the first bottom plate 2022 correspond to the positions of the second fastener 22 in the first limitable rotating member 101, the catch 3 in the second limitable rotating member 102, and the nut 542 in the first fastener 54, so as to facilitate the subsequent fixation and realization of the rotating function.

[0086] Step 204 The third fastener 204 threadedly connects the second top plate 2021 with the bearing portion 12 in the rotating outer disk 1 of the second limitable rotating member 102 through the second top plate hole 20210, such as fixing the second top plate 2021 to the bearing portion 12 in the rotating outer disk 1 of the second limitable rotating member 102 by using 6 self-tapping screws;

[0087] Step 205 provides a first cabinet body 201. The first cabinet body 201 includes a second bottom plate 2011. A hole is drilled in the second bottom plate 2011 to form a second bottom plate hole 20110. Along the direction X from the first cabinet body 201 to the third cabinet body 203, the second bottom plate hole 20110 penetrates through the second bottom plate 2011, and the second bottom plate hole 20110 corresponds to the connection hole 431 in the second limitable rotating member 102;

[0088] Specifically, the above-mentioned first cabinet body 201 is the uppermost layer of the limitable rotating cabinet 200, and the second bottom plate hole 20110 on the second bottom plate 2011 is aligned with the connection hole 431 in the rotating inner disk 4 of the second limitable rotating member 102.

[0089] In step 206, the second fastener 22 and the fourth fastener 205 are threadedly connected to the connecting portion 43 of the rotating inner disc 4 in the first rotatable member 101 through the first bottom plate hole 20220 of the first bottom plate 2022; the second fastener 22 and the fourth fastener 205 are threadedly connected to the connecting portion 43 of the rotating inner disc 4 in the second rotatable member 102 through the second bottom plate hole 20110 of the second bottom plate 2011.

[0090] Specifically, the second fastener 22 (such as a toggle screw) and the fourth fastener 205 (such as a toggle nut) are used to connect the second bottom plate 2011 and the second fastener 22 and the fourth fastener 205 on the rotating inner disc 4 of the second rotatable member 102, completing the installation of the rotatable cabinet 200 with limited rotation. The toggle nut is used to firmly connect the first cabinet body 201 to the rotating inner disc 4 of the second rotatable member 102 to ensure the stability of the entire rotatable cabinet 200 with limited rotation. It should be noted that: in this embodiment, the toggle screw and the toggle nut are used in combination.

[0091] Optionally, in step 207, drawers 206 are provided, and the drawers 206 are respectively installed in the first cabinet body 201, the second cabinet body 202, and the third cabinet body 203 to complete the assembly and test the rotation effect to ensure that the rotatable cabinet 200 with limited rotation can rotate normally and the limiting function is normal. The test is to ensure the quality of the entire assembly process, check whether the functions of the rotatable cabinet 200 with limited rotation are normal, and whether the limiting is accurate. Through the above precise hole position correspondence and firm fixation, it is ensured that the rotatable member 100 with limited rotation can rotate normally in the rotatable cabinet 200 with limited rotation and achieve the limiting function. The installation of the above drawers 207 is an important part of the cabinet body function to ensure that the drawers 206 can slide and be used normally.

[0092] Adopting the above solution, the second fastener 22, the third fastener 204, and the fifth fastener 205 firmly connect the first cabinet body 201, the second cabinet body 202, and the third cabinet body 203 to the rotatable member 100 with limited rotation respectively, which can not only prevent the rotatable cabinet 200 with limited rotation from loosening or being damaged during use to improve the stability and safety of the rotatable cabinet 200 with limited rotation, but also realize the rotation function, increasing the flexibility and space utilization rate of use.

[0093] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A rotatable part with a limit function, characterized in that, It includes a rotating outer disc, a limiting base, a detent, a limiting member and a rotating inner disc. The rotating outer disc and the rotating inner disc are parallel, and the rotating outer disc is located below the rotating inner disc. Among them, The rotating outer disc is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion, a first accommodating portion and a bearing portion connected in sequence. The covering portion, the first accommodating portion and the bearing portion are all annular in the positive projection along the direction from the rotating inner disc to the rotating outer disc. The first hollow disc structure has a first hollow portion; the first accommodating portion is recessed to form an arc surface on the side away from the rotating inner disc. Along the direction from the rotating inner disc to the rotating outer disc, the cross-sectional shape of the covering portion is a C-shaped structure, and the opening of the C-shaped structure faces the side of the first hollow portion. The cross-sectional shape of the bearing portion is a rectangle; a first hollow portion is opened in the middle of the bearing portion, and the first hollow portion penetrates the bearing portion along the direction from the rotating inner disc to the rotating outer disc; The rotating inner disc is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion, a second accommodating portion and a connecting portion connected in sequence. The clamping portion, the second accommodating portion and the connecting portion are all annular in the positive projection along the direction from the rotating inner disc to the rotating outer disc. The clamping portion corresponds to the covering portion. Along the direction from the rotating inner disc to the rotating outer disc, the positive projection of the second accommodating portion completely overlaps with the positive projection of the first accommodating portion; through the opening of the C-shaped structure, the clamping portion is clamped in the C-shaped structure. The second accommodating portion protrudes to form an arc surface on the side away from the rotating outer disc. A second hollow portion is opened on the connecting portion, and the second hollow portion penetrates the connecting portion along the direction from the rotating inner disc to the rotating outer disc. A accommodating space with a circular cross-section is formed between the first accommodating portion and the second accommodating portion, and a metal ball is arranged in the accommodating space; The limiting base is a first circular structure, which is connected to the side of the bearing portion close to the connecting portion. At least two detents are arranged on the first circular structure, and at least two detents are arranged along the circumferential direction of the first circular structure, and the detents pass through the first hollow portion; The limiting member includes a first inserting portion, a limiting portion and a second inserting portion connected in sequence. The limiting portion is a second circular structure. At least two first limiting holes are opened on the second circular structure, and at least two first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the detents. The first inserting portion and the second inserting portion are both inserted into the gap between the bearing portion and the connecting portion, and the first inserting portion and the second inserting portion are respectively fixedly connected to the corresponding connecting portion. The connecting portion rotates relative to the bearing portion, and the detent is embedded in the first limiting hole.

2. The position-limitable rotating member according to claim 1, wherein A sound-absorbing pad is provided on the side of the limiting member away from the limiting base. The sound-absorbing pad is a circular pad. Along the direction from the rotating inner disk to the rotating outer disk, the orthographic projection of the sound-absorbing pad completely overlaps with the orthographic projection of the second circular structure. A notch corresponding to the first limiting hole is provided at the edge of the circular pad. The shape of the notch is U-shaped, and the notch is recessed towards the center of the circular pad.

3. The rotatable member with a limit according to claim 1, characterized in that, Along the direction from the rotating inner disk to the rotating outer disk, the orthographic projection of the first hollowed-out portion is located within the orthographic projection of the second hollowed-out portion.

4. The rotatable member with a limit according to claim 3, wherein The bearing portion is provided with a first bearing hole and a second bearing hole. The first bearing hole and the second bearing hole are respectively arranged around the first hollowed-out portion. The second bearing hole is located closer to the first hollowed-out portion than the first bearing hole. The first bearing hole and the second bearing hole penetrate through the bearing portion along the direction from the rotating inner disk to the rotating outer disk. A connecting hole arranged around the second hollowed-out portion is provided on the connecting portion. Along the direction from the rotating inner disk to the rotating outer disk, the connecting hole penetrates through the connecting portion, and the orthographic projection of the connecting hole does not overlap with the orthographic projection of the second bearing hole at all. The limiting base is provided with a second limiting hole and a base hole. Along the direction from the rotating inner disk to the rotating outer disk, the orthographic projection of the base hole completely overlaps with the orthographic projection of the second bearing hole. The orthographic projection of the ball catch completely overlaps with the orthographic projection of the second limiting hole. The second limiting hole and the base hole penetrate through the limiting base along the direction from the rotating inner disk to the rotating outer disk.

5. The rotatable member with a limit according to claim 4, wherein The shapes of the first bearing hole and the second bearing hole are respectively circular, and the diameter of the first bearing hole is larger than the diameter of the second bearing hole.

6. The rotatable member with a limit according to claim 4, wherein, A first fastener is connected between the limiting base and the bearing portion through the base hole and the second bearing hole.

7. The rotatable member capable of being limited as claimed in claim 4, wherein, The first plugging portion and the second plugging portion are arranged in mirror symmetry. The shapes of the first plugging portion and the second plugging portion are respectively arc trapezoids. The first plugging portion and the second plugging portion both include an upper bottom surface and a lower bottom surface. The lower bottom surface is located on the side of the upper bottom surface closer to the second circular structure. The lower bottom surface and the upper bottom surface are respectively arc surfaces protruding away from the second circular structure. The first plugging portion and the second plugging portion are both provided with plugging holes corresponding to the first bearing hole. Second fasteners are respectively connected between the second plugging portion and its corresponding connecting portion and between the first plugging portion and its corresponding connecting portion.

8. An assembly method for a rotatable part with limited position, characterized in that, Including: The rotatable member with limited position includes a rotating outer disc, a limiting base, a detent, a limiting member, a rotating inner disc and a sound insulation pad. The rotating outer disc and the rotating inner disc are parallel, and the rotating outer disc is located below the rotating inner disc. Among them, the rotating outer disc is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion, a first accommodating portion and a bearing portion connected in sequence. The covering portion, the first accommodating portion and the bearing portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The first hollow disc structure has a first hollow portion; the first accommodating portion is recessed towards the side away from the rotating inner disc to form an arc surface. Along the direction from the rotating inner disc to the rotating outer disc, the cross-sectional shape of the covering portion is a U-shaped structure, and the opening of the U-shaped structure faces the side of the first hollow portion. The cross-sectional shape of the bearing portion is a rectangle; a first hollow portion is opened in the middle of the bearing portion, and the first hollow portion penetrates the bearing portion along the direction from the rotating inner disc to the rotating outer disc; the rotating inner disc is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion, a second accommodating portion and a connecting portion connected in sequence. The clamping portion, the second accommodating portion and the connecting portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The clamping portion corresponds to the covering portion. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the second accommodating portion completely overlaps with the orthographic projection of the first accommodating portion; through the opening of the U-shaped structure, the clamping portion is clamped in the U-shaped structure. The second accommodating portion protrudes towards the side away from the rotating outer disc to form an arc surface. A second hollow portion is opened on the connecting portion, and the second hollow portion penetrates the connecting portion along the direction from the rotating inner disc to the rotating outer disc. A circular accommodating space is formed between the first accommodating portion and the second accommodating portion, and a metal ball is arranged in the accommodating space; the limiting base is a first circular structure, which is connected to the side of the bearing portion close to the connecting portion. At least two detents are arranged on the first circular structure, and at least two detents are arranged along the circumferential direction of the first circular structure, and the detents pass through the first hollow portion; the limiting member includes a first inserting portion, a limiting portion and a second inserting portion connected in sequence. The limiting portion is a second circular structure, and at least two first limiting holes are opened on the second circular structure. At least two first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the detents. The first inserting portion and the second inserting portion are both inserted into the gap between the bearing portion and the connecting portion, and the first inserting portion and the second inserting portion are respectively fixedly connected to the corresponding connecting portion. The connecting portion rotates relative to the bearing portion, and the detent is embedded in the first limiting hole;A sound-absorbing pad is provided on the side of the limiting member away from the limiting base. The sound-absorbing pad is a circular pad. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the sound-absorbing pad completely overlaps with the orthographic projection of the second circular structure. A notch corresponding to the first limiting hole is formed at the edge of the circular pad. The shape of the notch is U-shaped, and the notch is recessed towards the center of the circular pad. Providing a rotating inner disk, a rotating outer disk and metal balls. The metal balls are placed along the circumferential direction in the first accommodating portion of the rotating outer disk. The clamping portion of the rotating inner disk is buckled to the covering portion of the rotating outer disk. The metal balls are located in the gap between the first accommodating portion of the rotating outer disk and the second accommodating portion of the rotating inner disk. The covering portion of the rotating outer disk is bent to clamp the clamping portion of the rotating inner disk. Providing a limiting base and ball catches. At least two of the ball catches are respectively placed on the limiting base, and the limiting base is connected to the bearing portion of the rotating outer disk. Provide a limiting member, clamp the limiting member between the clamping portion of the rotating inner disc and the bearing portion of the rotating outer disc, and connect the first insertion portion and the second insertion portion in the limiting member to the clamping portion of the rotating inner disc; Provide a sound insulation pad, and bond the sound insulation pad on the side of the limiting member away from the limiting base.

9. An assembly method of a rotatable cabinet with a limit function, characterized in that, Comprise: The limit-rotatable cabinet includes a first cabinet body, at least one second cabinet body and a third cabinet body. The first cabinet body, at least one of the second cabinet bodies and the third cabinet body are all hollow rectangular bodies with openings. The adjacent first cabinet body and the second cabinet body, as well as the second cabinet body and the third cabinet body, are respectively connected by limit-rotatable members; the limit-rotatable member includes a rotating outer disc, a limit base, a detent ball, a limiting member, a rotating inner disc and a sound-absorbing pad. The rotating outer disc and the rotating inner disc are parallel, and the rotating outer disc is located below the rotating inner disc. Among them, the rotating outer disc is a first hollow disc structure. Along the radial direction of the first hollow disc structure, the first hollow disc structure includes a covering portion, a first accommodating portion and a bearing portion connected in sequence. The covering portion, the first accommodating portion and the bearing portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The first hollow disc structure has a first hollow portion; the first accommodating portion is recessed towards the side away from the rotating inner disc to form an arc surface. Along the direction from the rotating inner disc to the rotating outer disc, the cross-sectional shape of the covering portion is a C-shaped structure, and the opening of the C-shaped structure faces the side of the first hollow portion. The cross-sectional shape of the bearing portion is a rectangle; a first hollow portion is opened in the middle of the bearing portion, and the first hollow portion penetrates the bearing portion along the direction from the rotating inner disc to the rotating outer disc; the rotating inner disc is a second hollow disc structure. Along the radial direction of the second hollow disc structure, the second hollow disc structure includes a clamping portion, a second accommodating portion and a connecting portion connected in sequence. The clamping portion, the second accommodating portion and the connecting portion are all annular in the orthographic projection along the direction from the rotating inner disc to the rotating outer disc. The clamping portion corresponds to the covering portion. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the second accommodating portion completely overlaps with the orthographic projection of the first accommodating portion; through the opening of the C-shaped structure, the clamping portion is clamped in the C-shaped structure. The second accommodating portion protrudes towards the side away from the rotating outer disc to form an arc surface. A second hollow portion is opened on the connecting portion, and the second hollow portion penetrates the connecting portion along the direction from the rotating inner disc to the rotating outer disc. A circular accommodating space is formed between the first accommodating portion and the second accommodating portion, and a metal ball is arranged in the accommodating space; the limit base is a first circular structure, which is connected to the side of the bearing portion close to the connecting portion. At least two detent balls are arranged on the first circular structure, and at least two of the detent balls are arranged along the circumferential direction of the first circular structure, and the detent balls pass through the first hollow portion;The limiting member includes a first insertion portion, a limiting portion, and a second insertion portion that are sequentially connected. The limiting portion is a second circular structure, and at least two first limiting holes are formed in the second circular structure. At least two of the first limiting holes are arranged along the circumferential direction of the second circular structure. The first limiting holes cooperate with the catch. Both the first insertion portion and the second insertion portion are inserted into the gap between the bearing portion and the connecting portion. The first insertion portion and the second insertion portion are respectively fixedly connected to the corresponding connecting portion. The connecting portion rotates relative to the bearing portion, and the catch is embedded in the first limiting hole. A sound-absorbing pad is provided on the side of the limiting member away from the limiting base. The sound-absorbing pad is a circular pad. Along the direction from the rotating inner disc to the rotating outer disc, the orthographic projection of the sound-absorbing pad completely overlaps with the orthographic projection of the second circular structure. A notch corresponding to the first limiting hole is formed at the edge of the circular pad. The shape of the notch is U-shaped, and the notch is recessed toward the center of the circular pad. The first cabinet, the second cabinet, and the third cabinet are arranged along the direction from the rotating inner disc to the rotating outer disc; Provide a third cabinet body and a first limitable rotating member. The third cabinet body includes a first top plate. A first top plate hole is formed by drilling on the first top plate of the third cabinet body. Along the direction from the first cabinet body to the third cabinet body, the first top plate hole penetrates through the first top plate. The first top plate hole corresponds to the ball catch, the second bearing hole and the first fastener in the first limitable rotating member; The third fastener threadedly connects the first top plate and the rotating outer disc in the first limitable rotating member through the first top plate hole; Provide a second cabinet body and a second limitable rotating member. The second cabinet body includes a second top plate and a first bottom plate arranged in parallel. The second top plate hole and the first bottom plate hole are formed by drilling the second top plate and the first bottom plate respectively. Along the direction from the first cabinet body to the third cabinet body, the second top plate hole and the first bottom plate hole penetrate through the second top plate and the first bottom plate respectively. The first bottom plate hole corresponds to the connection hole in the first limitable rotating member, and the second top plate hole corresponds to the ball catch, the second bearing hole and the first fastener in the second limitable rotating member; The third fastener threadedly connects the second top plate and the bearing portion in the rotating outer disc of the second limitable rotating member through the second top plate hole; Provide a first cabinet body. The first cabinet body includes a second bottom plate. A second bottom plate hole is formed by drilling the second bottom plate. Along the direction from the third cabinet body to the first cabinet body, the second bottom plate hole penetrates through the second bottom plate. The second bottom plate hole corresponds to the connection hole in the second limitable rotating member; The second fastener and the fourth fastener threadedly connect the first bottom plate and the connection portion of the rotating inner disc in the first limitable rotating member through the first bottom plate hole; The second fastener and the fourth fastener threadedly connect the second bottom plate and the connection portion of the rotating inner disc in the second limitable rotating member through the second bottom plate hole.

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