Hinge assembly and refrigeration equipment

Abstract

The invention discloses a hinge assembly and refrigeration equipment. The hinge assembly comprises a movable shaft and a groove body, the groove body comprises a first track groove and a second track groove; the movable shaft is provided with a shaft body, and the shaft body sequentially moves in the first track groove and the second track groove. The shaft body is in sliding fit with the first track groove, and the hinge assembly further comprises a limiting part for limiting circumferential rotation of the shaft body in the first track groove; the shaft body can rotate in the second track groove in the circumferential direction. The whole cross section of the shaft body is flat, and the cross section of the shaft body has a length direction and a width direction; the outer wall of the shaft body is further provided with a pair of arc-shaped faces which are arranged oppositely in the length direction. The arc-shaped surface intersects with the cross section of the shaft body to form an arc line, and a central angle corresponding to the arc line is alpha; the angle beta of the shaft body rotating in the second track groove in the circumferential direction is smaller than the supplementary angle of alpha. According to the embodiment, opening of the door body is achieved through a simpler structure, and the door body is prevented from being interfered by external environment parts in the opening process.

Description

Technical Field

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

[0002] Embedded electrical appliances can be integrated with the external environment and are becoming more and more popular. Embedded refrigeration equipment, such as embedded refrigerators, generally includes a box body and a door body that rotates on the box body. A storage space is provided in the box body, and the door body is used to open or close the storage space. In order to make the door body more beautiful after closing, the distance between the embedded refrigeration equipment and the external environment is made as small as possible after the door body is closed, but such a structural setting will affect the opening of the door body. In order to solve the above technical problems, a hinge assembly with a dual-axis structure is used in the prior art, that is, while the door body rotates along the main axis during opening, there is also a secondary axis to guide the door body to control the movement of the door body, so that the movement of the door body can be controlled during the opening process to avoid interference from external environmental parts.

[0003] The hinge components in the prior art are mostly biaxial, with a relatively complex structure and a complicated motion trajectory, which is not convenient for application. Summary of the invention

[0004] The purpose of the present invention is to realize the movement of the door body during opening by means of a single-axis setting, and to avoid the rotation of the shaft body in the groove by means of the setting of the limit portion during the movement, and at the same time to avoid the problem that the hinge assembly cannot be reset when closed by limiting the rotation angle of the shaft body. A simpler structural setting can avoid the interference of external environmental parts during the opening process of the refrigerator using the hinge assembly and facilitate the closing of the door.

[0005] To achieve one of the above-mentioned purposes, an embodiment of the present invention provides a hinge assembly, comprising a movable shaft and a groove body; the groove body comprises a first track groove and a second track groove; the movable shaft has a shaft body, and the shaft body moves in the first track groove and the second track groove in sequence;

[0006] The shaft body is slidably matched with the first track groove, and the hinge assembly further comprises a limit portion for limiting the circumferential rotation of the shaft body in the first track groove; the shaft body can rotate in the circumferential direction in the second track groove;

[0007] The cross-section of the shaft body is flat as a whole, and the cross-section of the shaft body has a length direction and a width direction; the outer wall of the shaft body also has a pair of arcuate surfaces, and the pair of arcuate surfaces are arranged opposite to each other along the length direction; the arcuate surfaces intersect with the cross-section of the shaft body to form an arc line, and the central angle corresponding to the arc line is α; the angle β of the shaft body rotating circumferentially in the second trajectory groove is less than the supplementary angle of α.

[0008] Furthermore, the limiting portion is arranged on the outer wall of the shaft body, and the limiting portion includes an abutting surface for abutting against the inner wall of the first track groove to limit the rotation of the shaft body in the first track groove.

[0009] Furthermore, a rotation limiting portion is provided in the second track groove; and a shaft body rotation limiting portion is provided on the shaft body;

[0010] The shaft body rotation limiting portion is arranged on the outer wall of the shaft body, and the shaft body rotation limiting portion and the limiting portion are overlapped in position, and after the rotation limiting portion and the limiting portion abut against each other, the shaft body is restricted from rotating circumferentially in the second track groove.

[0011] Furthermore, the limiting portion is provided in pair, and the pair of limiting portions are arranged along the width direction and symmetrically arranged on both sides of the shaft body;

[0012] The rotation limiting parts are provided with two, and the two rotation limiting parts are centrally symmetrically arranged with the center of the second track groove as a symmetry point.

[0013] Further, the rotation limiting portion is arranged on the inner wall of the second trajectory groove, and the inner wall of the second trajectory groove also has an arc-shaped inner wall, the arc-shaped inner wall is located beside the rotation limiting portion, the arc-shaped inner wall is adapted to the arc-shaped surface, the curvature of the arc-shaped inner wall is consistent with the curvature of the arc-shaped surface, and the arc length of the arc-shaped inner wall is greater than the arc length of the arc-shaped surface;

[0014] The arc-shaped inner walls are provided in a pair, and the pair of arc-shaped inner walls are centrally symmetrically arranged with the center of the second track groove as a symmetric point;

[0015] The second track groove comprises a main body section and a rotating section, wherein the main body section is opposite to the first track groove and serves as a natural extension of the first track groove toward the second track groove, and the rotating section is used to avoid the shaft body when the shaft body rotates;

[0016] There are two rotating sections, and the two rotating sections are centrally symmetrically arranged with the center of the main section as a symmetry point.

[0017] Furthermore, the cross section of the second trajectory groove is circular as a whole, and the rotation limiting portion includes a protrusion disposed in the second trajectory groove, and the protrusion protrudes from the inner wall of the second trajectory groove toward the inside of the second trajectory groove.

[0018] Another embodiment of the present invention further discloses a refrigeration device, characterized in that it comprises a box body having a containing space, a door body and a hinge assembly according to any one of claims 1 to 6; the door body is pivoted on the box body through the hinge assembly to open or close the containing space; the box body has a box side wall and a box front wall;

[0019] During the process of opening the door body, the shaft body moves in the first track groove and the second track groove in sequence; and when the shaft body moves along the first track groove, the door body moves relatively in a direction away from the box side wall and away from the box front wall.

[0020] Furthermore, the hinge assembly further comprises a hinge plate arranged on the box body, the groove body is arranged on the hinge plate, and the movable shaft is arranged on the door body;

[0021] The first track groove is arc-shaped and extends as a whole in a direction gradually away from the box side wall and away from the box front wall.

[0022] Furthermore, the hinge assembly further comprises a hinge plate arranged on the box body, the movable shaft is arranged on the hinge plate, and the groove body is arranged on the door body;

[0023] When the door body is in a closed state, the first track groove is in an arc shape as a whole, and extends in a direction gradually approaching the box side wall and the box front wall.

[0024] Furthermore, the refrigeration equipment is a refrigerator.

[0025] Compared with the prior art, the embodiment of the present invention realizes the movement of the door body using the hinge assembly during the opening process through the setting of a single axis, and avoids the rotation of the shaft body in the groove during the movement through the setting of the limiting part. At the same time, the problem that the hinge assembly cannot be reset when closing is avoided by limiting the rotation angle of the shaft body. The simpler structural setting avoids the interference of external environmental parts during the opening process of the refrigerator using the hinge assembly and facilitates closing the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a refrigeration device according to a first embodiment of the present invention;

[0027] Figure 2 It is a schematic structural diagram of a door body in a refrigeration device according to a first embodiment of the present invention;

[0028] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0029] Figure 4 It is a schematic diagram of the installation structure of the shaft body in the refrigeration equipment according to the first embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the door body in the refrigeration device of the first embodiment of the present invention when the door body is opened until the shaft body moves to the second track groove;

[0031] Figure 6It is a schematic structural diagram of the door body rotating in the second track groove in the refrigeration equipment of the first embodiment of the present invention;

[0032] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0033] Figure 8 is a schematic structural diagram of a door body of a refrigeration device according to a first embodiment of the present invention at a maximum opening angle;

[0034] Fig. 9 is a schematic structural diagram of a door body of a refrigeration device in a second embodiment of the present invention when it is closed;

[0035] Fig.10 It is a schematic diagram of the installation structure of the door body and the hinge assembly in the refrigeration equipment of the second embodiment of the present invention;

[0036] Fig.11 yes Fig.10 Cross-sectional view in CC direction;

[0037] Fig.12 is a structural schematic diagram of a hinge assembly in a refrigeration device according to a second embodiment of the present invention;

[0038] Fig.13 is a schematic structural diagram of a first type of tank body in a refrigeration device according to a second embodiment of the present invention;

[0039] Fig.14 is a schematic structural diagram of a second type of tank body in a refrigeration device according to a second embodiment of the present invention;

[0040] Fig.15 is a schematic structural diagram of a movable shaft in a refrigeration device according to a second embodiment of the present invention;

[0041] Fig.16 is a schematic structural diagram of a hinge assembly when the door body is closed in a refrigeration device according to a third embodiment of the present invention;

[0042] Fig.17 is a schematic structural diagram of a refrigeration device according to a third embodiment of the present invention when the door is opened until the shaft is located in the second track groove;

[0043] Fig.18 is a schematic structural diagram of a refrigeration device according to a third embodiment of the present invention when the door is opened to a maximum angle;

[0044] Fig.19 is a schematic structural diagram of a movable shaft in a refrigeration device according to a third embodiment of the present invention;

[0045] Fig. 20is a three-dimensional diagram of the hinge assembly in the refrigeration device according to the fourth embodiment of the present invention when the door body is opened until the shaft body is located in the second track groove;

[0046] Fig.21 is a schematic structural diagram of a hinge assembly when a door is opened or closed in a refrigeration device according to a fourth embodiment of the present invention;

[0047] Fig. 22 is a structural schematic diagram of a hinge assembly in a refrigeration device according to a fourth embodiment of the present invention when the door body is opened until the shaft body is located in the second track groove;

[0048] Fig.23 is a structural schematic diagram of a hinge assembly in a refrigeration device according to a fourth embodiment of the present invention when the door body is opened to a maximum angle;

[0049] Fig.24 is a schematic structural diagram of a rotating shaft in a refrigeration device according to a fourth embodiment of the present invention;

[0050] Fig.25 is a perspective view of a hinge assembly in a refrigeration device according to a fifth embodiment of the present invention when the door body is in a closed state;

[0051] Fig.26 is a schematic structural diagram of a tank body in a refrigeration device according to a fifth embodiment of the present invention;

[0052] Fig. 27 is a structural schematic diagram of a hinge assembly in a refrigeration device according to a fifth embodiment of the present invention when the door body is in a closed state;

[0053] Fig.28 is a schematic structural diagram of a rotating shaft in a refrigeration device according to a fifth embodiment of the present invention;

[0054] Fig.29 It is a schematic structural diagram of a shaft body in a refrigeration device according to a first embodiment of the present invention;

[0055] Marking Description:

[0056] 1-box body, 11-box front wall, 12-box side wall, 2-door body, 21-door front wall, 22-door side wall, 23-door outer edge, 24-door inner edge, 3-hinge assembly, 31-movable shaft, 311-axis body, 312-axis body rotation limiting part, 313-arc surface, 314-rotation groove, 315-installing part, 316-upper limit plate, 317-lower limit plate, 32-groove body, 321-first track groove, 322-second track groove, 3221-arc inner wall, 3222-main section, 3223-rotation section, 33-limiting part, 34-rotation limiting part, 35-hinge plate. DETAILED DESCRIPTION

[0057] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0058] One embodiment of the present invention provides a refrigeration device. The refrigeration device can be a box embedded in an external environment part. The external environment part can be, for example, a decorative part such as a cabinet or a stone slab. The refrigeration device can be a refrigerator or other household appliances embedded in the external environment part. The specific household appliances can be a wine cabinet, a storage cabinet, etc.

[0059] In this embodiment, Figure 1 As shown, the refrigeration device includes a box body 1 for providing an internal storage space, a door body 2 and a hinge assembly 3, and the door body 2 is pivoted on the box body 1 through the hinge assembly 3 to open or close the storage space;

[0060] In this embodiment, the box body 1 has a box front wall 11 and a box side wall 12 arranged perpendicular to the box front wall 11. In this embodiment, the box front wall 11 and the box side wall 12 are roughly flat. The opening of the storage space is arranged on the box front wall 11, and the door body 2 is located at the front side of the box body 1 as a whole, and when the door body 2 is in a closed state, the opening of the storage space is closed. It should be noted that the front side here is the opening direction of the storage space.

[0061] The door body 2 also has a door front wall 21, a door side wall 22 and a door rear wall. The intersection of the door front wall 21 and the door side wall 22 forms a door outer edge 23, and the intersection of the door side wall 22 and the door rear wall forms a door inner edge 24. When the door body 2 is in a closed state, that is, when the door body 2 covers the storage space opening, the door front wall 21 is arranged on the side of the door body 2 away from the box front wall 11. In this embodiment, the door front wall 21 is flat as a whole, and is roughly parallel to the box front wall 11 when the door body 2 is in a closed state.

[0062] The box body 1 is arranged beside the external environment part. After the box body 1 is put in place, the box side wall 12 faces the first side of the external environment part, that is, the box side wall 12 is opposite to the first side of the external environment part, and the box side wall 12 is roughly parallel to the first side of the external environment part.

[0063] When the door body 2 is in the closed state, the door side wall 22 also faces the first side of the external environment component, and the door side wall 22 is opposite to the first side. In this embodiment, the door side wall 22 is flat as a whole, and is roughly parallel to the first side of the external environment component.

[0064] In this embodiment, the door front wall 21 and the door side wall 22 are both roughly planar. When the door body 2 is in a closed state, the door front wall 21 is parallel to the box front wall 11, and the plane where the door side wall 22 is located is parallel to the plane where the box side wall 12 is located. Of course, in other embodiments, the door front wall 21 and the door side wall 22 can also be curved or cambered.

[0065] In this specific embodiment, Figure 1-4 As shown, the hinge assembly 3 includes a movable shaft 31 and a slot body 32 ; the movable shaft 31 includes an axis body 311 movable in the slot body 32 , and the axis body 311 and the slot body 32 move relative to each other during the opening process of the door body 2 .

[0066] In a specific embodiment, the slot body 32 includes a first track slot 321 and a second track slot 322; the shaft body 311 moves in the first track slot 321 and the second track slot 322 in sequence;

[0067] The shaft body 311 is slidably matched with the first track groove 321, and the hinge assembly 3 also includes a limiting portion 33 for limiting the relative rotation of the shaft body 311 and the first track groove 321; the setting of the limiting portion 33 can limit the rotation of the shaft body 311 in the first track groove 321 along the circumferential direction; the shaft body 311 can rotate in the second track groove 322 along the circumferential direction.

[0068] In this embodiment, during the opening process of the door body 2, the movement of the door body 2 can be achieved by the sliding of the shaft body 311 along the first track groove 321, and because the shaft body 311 is provided with a limiting portion 33 when sliding along the first track groove 321, the shaft body 311 is prevented from rotating in the circumferential direction in the first track groove 321. When the shaft body 311 rotates circumferentially in the first track groove 321, the door body 2 will rotate synchronously, and premature rotation of the door body 2 will cause the outer edge 23 of the door to be interfered with by external environmental components. In this embodiment, the setting of the limiting portion 33 can make the door body 2 only slide along the first track groove 321 instead of rotating in the initial stage of opening, thereby effectively preventing the door body 2 from interfering with the external environment in the initial stage of opening.

[0069] In a specific embodiment, Figure 1-4 As shown, the first track groove 321 is extended in a long strip shape as a whole. The extension shape of the first track groove 321 can be a straight line or a curve. In this embodiment, in order to better realize the movement of the door body 2, the first track groove 321 is extended in a curve shape as a whole.

[0070] The limiting portion 33 is disposed on the outer wall of the shaft body 311 , and the limiting portion 33 includes an abutting surface for abutting against the inner wall of the first track groove 321 to limit the shaft body 311 from rotating in the first track groove 321 .

[0071] By providing an abutment surface on the outer wall of the shaft body 311 to abut against the inner wall of the first track groove 321, a simple structure is adopted to achieve the limitation of the circumferential rotation of the shaft body 311 in the first track groove 321, which makes the structure simpler and the operation more convenient.

[0072] The abutting surface of the limiting portion 33 can be roughly extended in a plane. When the limiting portion 33 slides in the first track groove 321, the limiting portion 33, which is generally planar, can abut against the inner wall of the first track groove 321, thereby limiting the relative rotation of the shaft body 311 and the first track groove 321 in the circumferential direction.

[0073] Of course, it is understandable that, in order to better match the inner wall of the first track groove 321, when the first track groove 321 is extended in a curve as a whole, the abutting surface of the limiting portion 33 is also correspondingly a curved surface set on the outer wall of the shaft body 311, and the curved limiting portion 33 is adapted to the curved surface of the inner wall of the first track groove 321. In a specific embodiment, the curve formed by the intersection of the curved surface and the cross section of the shaft body can be an arc as a whole.

[0074] There can be one or two limiting portions 33. When there is one limiting portion 33, it is equivalent to cutting off a portion of the shaft body 311 along the axial direction parallel to the shaft body 311 on the shaft body 311 which is originally cylindrical as a whole to form a limiting surface, which is used to abut against the inner wall of the first track groove 321.

[0075] Of course, in other embodiments, such as Figure 2-4 As shown, two limit portions 33 may also be provided, and the two limit portions 33 are disposed opposite to each other on both sides of the outer wall of the shaft body 311. When two limit portions 33 are provided and disposed opposite to each other on both sides of the shaft body 311, the cross section of the shaft body 311 is flat as a whole, and the cross section of the shaft body 311 has a length direction and a width direction, and the two limit surfaces are arranged along the width direction of the shaft body 311 and are symmetrically arranged.

[0076] The shaft body 311 is a flat shaft body as a whole, and the length direction of the cross section of the shaft body 311 is consistent with the extension direction of the first track groove 321, that is, the extension direction of the shaft body 311 in the lateral direction is along the extension direction of the first track groove 321. It should be noted that, since the first track groove 321 is a curve as a whole, the extension direction of the first track groove 321 is the tangent direction of the curve position where the first track groove 321 is located.

[0077] The first track groove 321 has two inner walls arranged opposite to each other in a direction perpendicular to the extension direction of the first track groove 321. When the shaft body 311 slides along the first track groove 321, the two limiting portions 33 are respectively opposite to the two inner walls of the first track groove 321. When any limiting portion 33 abuts against the inner wall of the first track groove 321 during the sliding process of the shaft body 311, the rotation of the shaft body 311 in the circumferential direction of the first track groove 321 can be limited. The two limiting portions 33 are limited between the two inner walls, so that the flat shaft body 311 can only slide along the extension direction of the first track groove 321 and cannot rotate.

[0078] When the shaft body 311 slides along the first track groove 321 , the length direction of the cross section of the shaft body 311 is substantially the same as the extension direction of the first track groove 321 where the shaft body 311 is located.

[0079] It should be noted that when the first track groove 321 is a curve as a whole, the tangent direction of the curve at the position of the shaft body 311 in the first track groove 321 is substantially the same as the length direction of the shaft body 311. That is, the tangent direction of the curve at the position of the shaft body 311 in the first track groove 321 is the extension direction of the first track groove 321.

[0080] After the shaft body 311 slides along the first track groove 321, Figure 5-8 As shown, the shaft body 311 moves in the second track groove 322. In this embodiment, the shaft body 311 can rotate in the circumferential direction in the second track groove 322. When the shaft body 311 rotates in the circumferential direction in the second track groove 322, the opening angle of the door body 2 can be increased. The structural setting of first sliding along the first track groove 321 and then rotating in the second track groove 322 can avoid the groove body 32 from occupying too much space, thereby better arranging the hinge assembly 3. When the groove body 32 is arranged on the door body 2, the thickness of the door body 2 can be reduced because the size of the groove body 32 is shortened and occupies less door body space.

[0081] In order to realize the rotation of the shaft body 311 in the second track groove 322 , the second track groove 322 at least includes a space for the shaft body 311 to rotate. The rotation space can be a whole circle or a pair of fan-shaped spaces arranged oppositely.

[0082] like Figure 4-8As shown, in order to better enable the shaft body 311 to rotate in the second track groove 322, the outer wall of the shaft body 311 is correspondingly provided with a pair of arcuate surfaces 313, the arcuate surfaces 313 and the limiting portion 33 are arranged along the circumferential direction of the shaft body 311, and the pair of arcuate surfaces 313 are arranged opposite to each other along the length direction of the cross section of the shaft body 311. The arcuate surfaces 313 are adapted to the inner circular inner wall of the second track groove 322, and when the shaft body 311 rotates along the second track groove 322, the arcuate surfaces 313 move in contact with the inner wall of the second track groove 322.

[0083] In the above embodiment, when the second track groove 322 is circular and the space for the shaft body 311 to rotate in the second track groove 322 is only fan-shaped, the arc surface 313 of the shaft body 311 is adapted to the curvature of the fan-shaped space in the second track groove 322. The arc surface 313 is provided on the shaft body 311 and a corresponding curved surface is provided in the second track groove 322 to achieve smooth rotation of the shaft body 311 in the second track groove 322.

[0084] In one embodiment, if Figure 21-23 As shown, the second track groove 322 is a circle connected to the first track groove 321, and the outer diameter of the second track groove 322 is larger than the maximum outer diameter of the shaft body 311. The outer diameter of the circle where the second track groove 322 is located is larger than the groove width of the first track groove 321. It should be noted that the groove width refers to the dimension of the second track groove 322 in the direction perpendicular to the extension direction. In addition, since the shaft body 311 is flat as a whole, the maximum dimension of the shaft body 311 along the length direction is smaller than the outer diameter of the second track groove 322, so that the shaft body 311 can rotate in the second track groove 322 after sliding out of the first track groove 321.

[0085] In the above embodiment, the size of the second track groove 322 is increased to realize the rotation of the shaft body 311. Since the shaft body 311 is flat as a whole, when the shaft body 311 rotates in the second track groove 322, the flat shaft body 311 needs to enter the first track groove 321 from the second track groove 322 during the closing process of the door body 2. Therefore, how to realize the reset of the flat shaft body 311 toward the first track groove 321 during the closing process of the door body 2 is an important problem to be solved.

[0086] In a specific embodiment, Figure 3-28As shown, the hinge assembly also has a rotation limit portion 34, and the rotation limit portion 34 is arranged in the second trajectory groove 322. The rotation limit portion 34 is used to limit the rotation angle of the shaft body 311 in the second trajectory groove 322. The setting of the rotation limit portion 34 can limit the rotation angle of the shaft body 311 in the second trajectory groove 322, and prevent the shaft body 311 from realizing 360° free rotation in the second trajectory groove 322, so that during the closing process of the door body 2, the shaft body 311 can be reset and rotated from the second trajectory groove 322 along the rotation trajectory. When the shaft body 311 is reset and rotated to the position where the length direction of the shaft body 311 is opposite to the first trajectory groove 321, the shaft body 311 can smoothly enter the first trajectory groove 321 from the second trajectory groove 322 and as the door body 2 is further closed, the shaft body 311 is reset and slides along the first trajectory groove 321 to the initial position of the first trajectory groove 321.

[0087] The provision of the rotation limiting portion 34 prevents the shaft body 311 from freely rotating in the first track groove 321 , so that the shaft body 311 can be reset and moved into the first track groove 321 , which facilitates the control of the door body when it is closed.

[0088] In order to better limit the rotation angle of the shaft 311, as Fig.19 , Fig.24 and Fig.28 As shown, the shaft body 311 is provided with a shaft body rotation limiter 312, which is used to abut against the rotation limiter 34 to limit the shaft body 311 from rotating circumferentially in the second track groove 322. In this embodiment, the axial rotation of the shaft body 311 is limited by abutting against the rotation limiter 34.

[0089] like Figure 2-8 and Figure 11-18 As shown, the rotation limiter 34 is disposed on the inner wall of the second track groove 322 and is used to abut against the shaft body rotation limiter 312 to limit the rotation of the shaft body 311 along the circumferential direction. In this embodiment, the inner wall of the second track groove 322 directly serves as the rotation limiter 34. In other embodiments, Figure 19-28 As shown, the rotation limiter 34 includes a rotation column or a protrusion provided on the inner wall of the second track groove 322 , and the rotation limiter 34 protrudes from the inner wall of the second track groove 322 into the second track groove 322 .

[0090] For the solution in which the rotation limit portion 34 is directly disposed on the inner wall of the second track groove 322, since the second track groove 322 has different structures, such as the cross section of the second track groove 322 is circular or irregular in shape as a whole, there are hinge assemblies of different types. At the same time, since the shaft body 311 has different structures, the shaft body rotation limit portion 312 can also be disposed in a variety of ways, for example, the shaft body rotation limit portion 312 can be disposed on the outer wall of the shaft body 312, can be disposed in parallel with the limit portion 33, or can be disposed overlapping with the limit portion 33. It can be seen that a variety of hinge assemblies can be combined through different types of second track grooves 322 and different types of rotating shafts 31. The following mainly describes several typical embodiments as examples.

[0091] For the first type of shaft 313, Figure 1-8 and Fig.15 As shown, the shaft body rotation limiting portion 312 is also arranged on the outer wall of the shaft body 311, and the shaft body rotation limiting portion 312 and the limiting portion 33 are overlapped in position. The cross section of the shaft body 311 has a length direction and a width direction. The outer wall of the shaft body 311 is provided with a pair of arcuate surfaces 313, and the pair of arcuate surfaces 313 are arranged on both sides of the shaft body 311 in opposite directions along the length direction of the cross section of the shaft body 311. The limiting portion 33 is a pair of abutting surfaces arranged in opposite directions along the width direction of the cross section of the shaft body 311. The abutting surfaces are plane as a whole, and the abutting surfaces are used as the shaft body rotation limiting portion 312 to abut against the rotation limiting portion 34. When the shaft body 311 rotates in the circumferential direction in the second track groove 322, when the limiting portion 33 and the rotation limiting portion 34 are in opposite positions, the rotation angle of the shaft body 311 is limited.

[0092] It is understandable that, for the first type of shaft 313, when the shaft 313 is arranged on the door body 2 and when the shaft 313 is arranged on the box body 1, the corresponding rotating shaft 31 also has different structures. Figure 1-8 What is shown are schematic diagrams of the structure of the rotating shaft 31 when the shaft body 313 is arranged on the box body 1. Fig.15 What is shown is a schematic diagram of the specific structure of the rotating shaft 31 corresponding to when the shaft body 313 is arranged on the box body 1 .

[0093] When the first type of shaft body 313 is arranged on the door body 2, the corresponding second track groove 322 can be as follows: Fig.14 As shown, the second track groove 322 is circular in shape as a whole, and the rotation limiter 34 includes a protrusion provided on the inner wall of the second track groove 322, and the protrusion has a rotation abutment surface for abutting against the shaft body rotation limiter 312. The protrusion extends outward from the inner wall of the second track groove 322. When the shaft body 311 rotates in the second track groove 322, the shaft body abuts against the protrusion to limit the rotation angle of the shaft body 311.

[0094] For the first type of shaft body 313, when the shaft body 313 is arranged on the door body 2, the second track groove 322 can also be used as follows: Fig.13 The irregularly shaped slot body shown in FIG. 1 is a slot body with a second track groove 322 disposed on the box body 1. When the first shaft body 313 is disposed on the box body 1, the second track groove 322 is as shown in FIG. Figure 1-8 As shown, it is arranged on the door body 2, and the second track groove 322 adopts an irregular shape.

[0095] Specifically, Figure 1-3 and Figure 11-13 The figure shows an irregularly shaped second track groove 322. Figure 1-3 The embodiment shown is that the groove body 32 is arranged on the door body 2. Figure 11-13 The embodiment shown is that the groove body 32 is arranged on the box body 1.

[0096] The inner wall of the second trajectory groove 322 includes a pair of arc-shaped inner walls 3221 that are opposite to each other, the arc centers of the pair of arc-shaped inner walls 3221 coincide, and the arc-shaped inner walls 3221 are adapted to the arc surface 313; the curvature of the arc-shaped inner walls 3221 is consistent with the curvature of the arc surface 313; the shaft body 311 rotates between the pair of arc-shaped inner walls 3221; the rotation limit portion 34 is arranged on the side of the arc-shaped inner walls 3221, and the rotation limit portion 34 includes a rotation abutment surface for abutting with the shaft body rotation limit portion 312 to limit the shaft body 311 from further rotating in the second trajectory groove 322.

[0097] The second track groove 322 can be regarded as the remaining space after the protrusion is arranged in a circular hole (such as Fig.14 and Figure 21-23 As shown), the remaining space is used for the rotation of the shaft 311.

[0098] like Figure 3 As shown, two rotation limiting parts 34 are provided, and the two rotation limiting parts 34 are centrally symmetrically arranged with the center of the second track groove 322 as a symmetric point. The center of the second track groove 322 is the common arc center position of the two arc-shaped inner walls 3221.

[0099] Depend on Figure 3 It can be seen that the second track groove 322 includes a main section 3222 and a rotating section 3223. The main section 3222 is opposite to the first track groove 321 and is an extension of the first track groove 321 in the second track groove 322. The rotating section 3223 is used to avoid the shaft body 311 when the shaft body 311 rotates. There are two rotating sections 3223, and the two rotating sections 3223 are centrally symmetrically arranged with the center of the main section 3222 as the symmetry point.

[0100] like Figure 3As shown, the dotted line portion represents the edge of the shaft body 311 after it initially enters the second track groove 222 . The second track groove 222 can be divided into a main section 3222 and a rotation section 3223 . The main section 3222 is opposite to the first track groove 321 and can be regarded as an extension of the first track groove 321 within the second track groove 322 .

[0101] like Figure 5 As shown, after the shaft body 311 slides out of the first track groove 321, the shaft body 311 moves to the main section 3222 in the second track groove 322. At this time, the shaft body 311 has not yet rotated in the second track groove 322. Then, as the door body 2 is further opened, Figure 6-7 As shown, the shaft body 311 rotates in the circumferential direction in the second track groove 322, and after the rotation, part of the shaft body 311 is located in the rotating section 3223. After the shaft body rotation limiter 312 of the shaft body 311 abuts against the rotation limiter 34, the shaft body 311 completes the final rotation into position ( Figure 8 shown).

[0102] For the first type of the overall flat shaft 313, the reset of the shaft 313 when closed can also be restricted by restricting the specific structure of the shaft 313. Specifically, Fig.29 As shown, the solid line portion of the shaft body 311 represents a schematic diagram of the position of the shaft body 311 before it rotates in the second track groove 322 , and the dotted line portion of the shaft body 311 represents a schematic diagram of the position of the shaft body 311 when it rotates to the maximum position in the second track groove 322 .

[0103] The arc surface 313 intersects with the cross section of the shaft body 311 to form an arc line, and the central angle corresponding to the arc line is α; the angle β of the shaft body 311 rotating along the circumferential direction in the second track groove 222 is not greater than the supplementary angle of α.

[0104] Since the shaft body 311 is flat as a whole, and the two arcuate surfaces 313 of the shaft body 311 are arranged in the length direction, the central angle α corresponding to the arc formed by the arcuate surface 313 on the cross section is generally less than 90°, so the supplementary angle of the central angle α generally needs to be greater than 90°. In this embodiment, if the angle β of the axial rotation of the shaft body 311 is greater than the supplementary angle of α, it indicates that the angle of rotation of the shaft body 311 in the second track groove 322 is greater than 90°.

[0105] Since the arcuate surfaces 313 are arranged opposite to each other on the shaft body 311, if the arcuate surfaces 313 can rotate within the second track groove 322 at an angle greater than 90°, the angle traveled by the two arcuate surfaces 313 arranged opposite to each other within the second track groove 322 exceeds 360°, which means that the shaft body 311 can achieve 360° free rotation within the second track groove 322. Such a structural design may cause difficulty in resetting the shaft body 311.

[0106] In this embodiment, the rotation angle is limited so that the shaft body 311 can be reset and moved from the second track groove 322 to the first track groove 321 during the door closing process, thereby better achieving the closing of the door body.

[0107] For the second type of shaft 313, Figure 16-19 The shaft body rotation limiting portion 312 is directly arranged on the outer wall of the shaft body 311 , the shaft body rotation limiting portion 312 and the limiting portion 33 are arranged in parallel, and the shaft body rotation limiting portion 312 and the limiting portion 33 are arranged along the circumferential direction of the shaft body 311 .

[0108] The shaft body rotation limiting part 312 and the limiting part 33 are arranged along the circumference of the shaft body 311, and a pair of shaft body rotation limiting parts 312 and limiting parts 33 are provided, and a pair of shaft body rotation limiting parts 312 are centrally symmetrically arranged with the central axis of the shaft body 311 as the symmetry point, and a pair of limiting parts 33 are centrally symmetrically arranged with the central axis of the shaft body 311 as the symmetry point. The cross section of the shaft body 311 is generally rhombus-shaped.

[0109] It can be understood that for the second type of shaft 313, when the shaft 313 is arranged on the door body 2 and when the shaft 313 is arranged on the box body 1, the corresponding rotating shaft 31 also has different structures. Figure 16-19 What are shown are schematic diagrams of the structure of the rotating shaft 31 when the shaft 313 is set on the door body 2. For those skilled in the art, the specific structure of the rotating shaft 31 corresponding to the shaft 313 when it is set on the box body 1 is also an easy-to-think-of conventional replacement, which will not be described in detail here.

[0110] The second track groove 322 corresponding to the second shaft 313 can be an irregular shape like the first shaft 313, or a protrusion can be set on the inner wall of the circular second track groove 322 to limit the shaft 313. The specific structural setting can refer to the above description and will not be repeated here.

[0111] Another type of second track groove 322 may be used for the second shaft body 313. Fig.19 As shown, since adjacent limiting portions 33 and shaft body rotation limiting portions 312 are provided on the outer wall of the shaft body 313 , a protrusion is formed between the limiting portions 33 and the shaft body rotation limiting portions 312 .

[0112] like Fig.16As shown, the second track groove 322 includes a main body section 3222 and a rotating section 3223. The main body section 3222 is opposite to the first track groove 321 and is an extension of the first track groove 321 in the second track groove 322. The rotating section 3223 is used to provide an avoidance space for the rotation of the shaft body 311 when the shaft body 311 rotates. Two rotating sections 3223 are provided, and the two rotating sections 3223 are centrally symmetrically arranged with the center of the main body section 3222 as the symmetry point.

[0113] like Fig.16 As shown in the figure, the dotted line position indicates the boundary of the shaft body 313 when the shaft body 313 enters the second track groove 322 and does not rotate, and the dotted line position and the inner wall of part of the second track groove 322 constitute the main body section 3222. The shape of the main body section 3222 is adapted to the first track groove 321, and the width of the main body section 3222 is consistent with the width of the first track groove 321. The rotating section 3223 can be regarded as a groove body formed by being recessed outward from the inner wall of the main body section 3222.

[0114] like Fig.16 As shown, during the sliding of the shaft body 313 along the first track groove 321 , the limiting portion 33 slides along the inner wall of the first track groove 321 to prevent the shaft body 313 from rotating circumferentially in the first track groove 321 , so that the shaft body 313 can only slide in the first track groove 321 .

[0115] like Fig.17 As shown, when the shaft body 313 slides into the second track groove 321 and does not start to rotate, the protrusion formed between the limiting portion 33 and the shaft body rotation limiting portion 312 on the outer wall of the shaft body 313 is just located in the rotating section 3223. The setting of the rotating section 3223 can cause the shaft body 313 to rotate.

[0116] like Fig.18 As shown, when the shaft body 313 rotates until the shaft body rotation limiting portion 312 on the outer wall of the shaft body 313 abuts against the rotation limiting portion 34 formed on the inner wall of a part of the main section 3222, the angular rotation of the shaft body 313 is limited.

[0117] For the third type of shaft 313, Fig.24As shown, a rotation groove 314 is provided on the rotation shaft 31, and the rotation groove 314 is provided on the shaft body 313 and is opened in the radial direction of the shaft body 313. The cross section of the rotation groove 314 is fan-shaped as a whole. The rotation groove 314 has a pair of rotation groove inner walls that are relatively arranged along the circumferential direction of the shaft body 311, and the shaft body rotation limiter 312 is arranged on the rotation groove inner wall. The rotation limiter 34 of the above two shaft bodies 313 is directly arranged on the outer wall of the shaft body 311. The rotation limiter 34 of the third shaft body 313 is not arranged on the outer wall of the shaft body 313, but a groove body is opened on the shaft body 313, and the rotation limiter 34 is arranged on the inner wall of the groove body.

[0118] For the third type of shaft 313, certain requirements are required for the structure of the second track groove 322. A rotating column needs to be arranged in the second track groove 322, and the rotating column is adapted to the corresponding rotating groove 314. Figure 20-28 As shown, the rotation limiting portion 34 includes a rotation column extending from the inner wall of the second track groove 322 and toward the inside of the second track groove 322 .

[0119] When the shaft body 311 slides into the second track groove 322, the position of the rotating column is exactly opposite to the position of the rotating groove 314. The rotating column can be accommodated in the rotating groove 314 and rotate relatively along the circumferential direction of the shaft body 311; the opening size of the rotating groove 314 is larger than the size of the rotating column, so that the rotating column can produce relative rotation in the rotating groove 314.

[0120] In the specific embodiment, in order to facilitate the rotation groove 314 sliding out of the first track groove 321 to smoothly dock with the rotation post, the rotation post is extended from the inner wall of the second track groove 322 toward the end of the first track groove 321 .

[0121] Since the rotating groove 314 has two rotating groove inner walls that are opposite to each other along the circumferential direction of the shaft body 313 , the rotating column can rotate relatively between the two rotating groove inner walls in the rotating groove 314 .

[0122] For the third type of shaft 313, the cross section of the corresponding second track groove 322 can be as follows: Figure 21-23 The overall shape shown is circular. Of course, it can also be irregular or in other shapes.

[0123] Similarly, for the third type of shaft 313, when the shaft 313 is arranged on the door body 2 and when the shaft 313 is arranged on the box body 1, the corresponding rotating shaft 31 also has different structures. Fig.24 What are shown are schematic diagrams of the structure of the rotating shaft 31 when the shaft 313 is set on the door body 2. For those skilled in the art, the specific structure of the rotating shaft 31 corresponding to the shaft 313 when it is set on the box body 1 is also an easy-to-think-of conventional replacement, which will not be described in detail here.

[0124] For the fourth type of shaft 313, Fig.28 As shown, the rotating shaft 31 is provided with a rotating groove 314 similar to the third middle shaft body 313, and the rotating groove 314 has a pair of rotating groove inner walls arranged opposite to each other along the circumferential direction of the shaft body 311, and the shaft body rotation limiting portion 312 is arranged on the rotating groove inner wall. In addition, different from the third shaft body 313, the shaft body rotation limiting portion 312 is not only arranged on the rotating groove inner wall, but also on the outer wall of the shaft body 313. The shaft body rotation limiting portion 312 and the limiting portion 33 are arranged along the circumferential direction of the shaft body 313.

[0125] The shaft rotation limiter 312 and the limiter 33 are arranged in parallel, and two shaft rotation limiters 312 and two limiters 33 are each provided, and the two shaft rotation limiters 312 and the two limiters 33 are centrally symmetrical with the central axis of the shaft 312 as the symmetry point.

[0126] For the fourth shaft 313 , the rotation angle of the shaft 313 can be limited by any one of the shaft rotation limiting parts 312 at two positions, or the rotation angle of the shaft 313 can be limited simultaneously by using the shaft rotation limiting parts 312 at two different positions.

[0127] When the shaft body rotation limiting portion 312 provided on the inner wall of the rotation groove is used to limit the rotation angle of the shaft body 313, the second track groove 322 corresponding to the third shaft body 313 can be used. The specific structure can be referred to above and will not be described in detail here. When the shaft body rotation limiting portions 312 at two different positions are used to limit the rotation angle of the shaft body 313 at the same time, there are certain requirements for the structure of the second track groove 322.

[0128] like Figure 25-27 As shown, for the fourth type of shaft body, since adjacent limiting portions 33 and shaft body rotation limiting portions 312 are simultaneously provided on the outer wall of the shaft body 313, a protrusion is formed between the limiting portions 33 and the shaft body rotation limiting portions 312. When the shaft body 313 slides along the first trajectory groove 321, the limiting portion 33 slides along the inner wall of the first trajectory groove 321 to prevent the shaft body 313 from rotating circumferentially in the first trajectory groove 321, so that the shaft body 313 can only slide in the first trajectory groove 321.

[0129] When the shaft body 313 slides into the second track groove 321 but does not start to rotate, the protrusion formed between the limiting portion 33 and the shaft body rotation limiting portion 312 on the outer wall of the shaft body 313 is exactly located in the rotation section 3223. It should be noted that at this time, the rotation column in the second track groove 322 is exactly opposite to the rotation groove 314. The rotation column is accommodated in the rotation groove 314 and can generate relative rotation in the rotation groove 314. The setting of the rotation section 3223 can make the shaft body 313 rotate. When the shaft body 313 rotates to the shaft body rotation limiting portion 312 on the outer wall of the shaft body 313 and the rotation limiting portion 34 formed on the inner wall of the main section 3222 are abutted, the angular rotation of the shaft body 313 is limited. At this time, the shaft body 313 also rotates to the shaft body rotation limiting portion 312 on the inner wall of the rotation groove 314 abuts against the rotation column.

[0130] In a specific embodiment, the movable shaft 31 can be arranged on the door body 2 or on the box body 1. Figure 1-8 As shown, when the movable shaft 31 is arranged on the box body 1, the groove body 32 is correspondingly arranged on the door body 2; Figure 9-29 As shown, when the movable shaft 31 is arranged on the door body 2 , the groove body 32 is correspondingly arranged on the box body 1 .

[0131] like Figure 1-8 As shown, when the movable shaft 31 is set on the box body 1, in order to facilitate the setting of the movable shaft 31, the hinge assembly 3 also has a hinge plate 35 set on the box body 1, and the movable shaft 31 has a mounting portion 315 fixed on the hinge plate 35, and the shaft body 311 and the mounting portion 315 are arranged along the axial direction of the shaft body 311.

[0132] The groove body 32 is directly arranged on the door body 2, and the bottom or top of the door body 2 directly forms a groove opening upward or downward, and the shaft body 311 is positioned in the groove. Such a structural arrangement can more conveniently realize the installation and fixation of the door body 2 on the box body 1, which is convenient for loading or disassembly of the door body 2.

[0133] like Figure 1 As shown, when the door body 2 is in the closed state, the shaft body 311 is located at the beginning of the first track groove 321, and the beginning of the first track groove 321 is relatively arranged near the door front wall 21. The end of the first track groove 321 is located closer to the door side wall 22 and the box front wall 12 relative to the beginning.

[0134] like Figure 1As shown, when the door body 2 is in a closed state, the starting end of the first track groove 321 is relatively close to the door front wall 21 and relatively far from the door side wall 22, and the starting end of the first track groove 321 is relatively far from the box front wall 11 and the box side wall 12 relative to the end of the first track groove 321. During the opening process of the door body 2, the shaft body 311 slides relatively along the first track groove 321 from the starting end to the end. When the door body 2 is in a closed state, the first track groove 321 extends in a direction gradually approaching the box front wall 11 and the box side wall 12, and the extension direction of the first track groove 321 is also the overall direction of movement from the starting end to the end of the first track groove 321.

[0135] The first track groove 321 is provided so that when the door body 2 is opened, the door body 2 as a whole has a motion tendency to move relatively away from the box side wall 12 and away from the box front wall 11. Taking the door body 2 as a reference, the shaft body 313 has a motion component that moves relatively away from the door front wall 21 and gradually toward the door side wall 22.

[0136] In the initial stage of the opening process, the outer edge 23 of the door and the inner edge 24 of the door are relatively located away from the shaft 311. In order to prevent the outer edge 23 of the door from being affected by interference from external environmental parts and to prevent the inner edge 24 of the door from being affected by interference from the box body 1, the first track groove 321 is extended as a whole toward the position of the inner edge 24 of the door. Such a structural arrangement allows the door body 2 to be pulled out obliquely in the oblique direction as a whole during the opening process. After the door body 2 moves to a position convenient for rotation and opening, subsequent rotation can be achieved.

[0137] like Figure 2 As shown, the first track groove 321 is extended in a curve as a whole, and the first track groove 321 includes a first groove section and a second groove section sequentially arranged along the extension direction of the first track groove 321, and the second groove section is located between the second track groove 322 and the first groove section.

[0138] During the opening process of the door body 2, as the opening angle of the door body 2 increases, the shaft body 311 slides along the first groove section and the second groove section in sequence. It should be noted that there is no clear boundary between the first groove section and the second groove section, and this only indicates the process of the shaft body 311 sliding in the first track groove 321.

[0139] When sliding in the first groove section, the movement amplitude of the shaft body 311 relatively away from the door front wall 21 is greater than the movement amplitude of the shaft body 311 relatively close to the door side wall 22; the movement amplitude of the door body 2 relatively away from the box front wall 11 is greater than the movement amplitude of the door body 2 relatively away from the box side wall 12.

[0140] When the first slot section moves, the door body 2 is more inclined to move away from the box body 1 than to move away from the external environment. That is, the door body 2 is more inclined to move forward than to move inward. It should be noted that the forward here refers to the movement of the door body 2 away from the box body 1, and the inward movement means that the door body 2 moves away from the external environment.

[0141] When the second slot section slides, the movement amplitude of the shaft body 311 on the side relatively away from the door front wall 21 is smaller than the movement amplitude of the shaft body 311 on the side relatively close to the door side wall 22; the movement amplitude of the door body 2 away from the box front wall 11 is smaller than the movement amplitude of the door body 2 away from the box side wall 12. That is, when the second slot section moves, compared with moving away from the box body 1, the door body 2 is more inclined to move away from the external environment. That is, compared with moving forward, the door body 2 is more inclined to move inward.

[0142] The arrangement of the above-mentioned structure actually ensures that before the door body 2 is opened to the first angle, when the shaft body 311 slides along the first groove section, the distance the door body 2 moves forward is greater than the distance it moves inward; when the door body 2 is opened from the first angle to the second angle, the shaft body 311 slides along the second groove section, and at this time, the distance the door body 2 moves inward is greater than the distance it moves forward, wherein the second angle is greater than the first angle.

[0143] The above structure allows the first track groove 321 to extend in an arc shape as a whole, and the arc formed by the first track line 321 arches in the direction away from the door outer edge 23 , and the first track groove 321 extends in the direction gradually approaching the door side wall 22 and gradually away from the door front wall 21 .

[0144] With the door outer edge 23 as the center, the plane where the door front wall 21 is located is the x direction, and the plane where the door side wall 22 is located is the y direction, the slope of the first groove segment extending direction is greater than the slope of the second groove segment extending direction, and the slope of the first track groove 321 extending direction gradually decreases along the extending direction of the first track groove 321. It should be noted that the extending direction of the first track groove 321 is the extending direction of the tangent line of the curve where the first track groove 321 is located.

[0145] Although the relative movement of the shaft body 311 in the entire first track groove 321 is relatively and gradually extending in the direction away from the door front wall 21 and close to the door side wall 22, it is more inclined to extend in the direction away from the door front wall 21 in the first groove section, and the second groove section is more inclined to extend in the direction close to the door side wall 22.

[0146] Since the inner edge 24 of the door is farther from the shaft 311 in the initial stage of the door opening, the interference between the inner edge 24 of the door and the box body 1 needs to be more considered in the initial stage. Therefore, the door body 2 needs to move further away from the box body 1, that is, the shaft body moves relatively away from the door front wall 21.

[0147] After opening to a certain angle, more consideration needs to be given to interference from external environmental components, so that the door body 2 moves more toward the inside, that is, the shaft body 311 moves more toward the direction close to the door side wall 22. The above-mentioned structure can be set to more precisely control the opening process of the door body 2 according to the actual needs of the door body 2 during the opening process, and can better avoid interference from the door body 2 during the opening process.

[0148] In the initial stage of the door body 2 opening, the door outer edge 23 first gradually moves toward the plane where the box side wall 12 is located, and then as the door body 2 is further opened, the door outer edge 23 gradually moves away from the plane where the door box side wall 12 is located.

[0149] like Figure 9-28 As shown, when the movable shaft 31 is arranged on the door body 2, the corresponding groove body 32 is arranged on the box body 1. In order to facilitate the arrangement of the groove body 32 on the box body 1, the hinge assembly also has a hinge plate 35 arranged on the box body 1, and the groove body 32 is arranged on the hinge plate 35. The movable shaft 31 has a mounting portion 315 connected and fixed to the door body 2, and the shaft body 311 and the mounting portion 315 are arranged along the axial direction of the shaft body 311.

[0150] like Fig.15 , Fig.19 , Fig.24 and Fig.28 As shown, an upper limit plate 316 and a lower limit plate 317 are provided on the movable shaft 31, and the shaft body 311 is arranged between the upper limit plate 316 and the lower limit plate 317. The upper limit plate 316 is used to abut against the upper side of the hinge plate 35, and the lower limit plate 317 is used to abut against the lower side of the hinge plate 35.

[0151] The movable shaft 31 is installed and positioned on the hinge plate 35 in the axial direction by the upper limit plate 316 and the lower limit plate 317 .

[0152] The groove body 32 is directly arranged on the hinge plate 35 and penetrates the hinge plate 35 in the vertical direction. The bottom or top of the door body 2 directly forms a groove opened upward or downward, and the shaft body 311 is positioned in the groove.

[0153] like Fig.11 and Fig.16 As shown, when the door body 2 is in the closed state, the shaft body 311 is located at the beginning of the first track groove 321 , and the beginning of the first track groove 321 is located closer to the box side wall 12 and the box front wall 11 relative to the end of the first track groove 321 .

[0154] When the door body 2 is opened, the shaft body 311 slides relatively along the first track groove 321, so that the door body 2 as a whole moves relatively away from the box side wall 12 and the box front wall 11, that is, the door body 2 moves inward and toward the front.

[0155] like Figure 9-11 As shown, when the door body 2 is in the closed state, the shaft body 31 is relatively located closer to the box side wall 12 and the box front wall 11. At the same time, the shaft body 31 is also located closer to the door side wall 22 and away from the door front wall 21 in the initial stage of closing the door body 2.

[0156] In order to prevent the door outer edge 23 from being affected by interference from external environmental components and to prevent the door inner edge 24 from being affected by interference from the box body 1 , the first track groove 321 is extended as a whole in a direction away from the box side wall 12 and away from the box front wall 11 .

[0157] like Fig.13 and Fig.14 As shown, the first track groove 321 is extended in a curved shape as a whole, and the first track groove 321 includes a first groove section and a second groove section sequentially arranged along the extension direction of the first track groove 321, and the second groove section is located between the second track groove 322 and the first groove section. During the opening process of the door body 2, as the opening angle of the door body 2 increases, the shaft body 311 slides along the first groove section and the second groove section in sequence. It should be noted that there is no clear boundary between the first groove section and the second groove section, and this only indicates the process of the shaft body 311 sliding in the first track groove 321.

[0158] When sliding along the first slot section, the movement range of the shaft body 311 relatively away from the box side wall 12 is greater than the movement range of the shaft body 311 relatively away from the box front wall 11, that is, when moving in the first slot section, compared with the direction away from the box body 1, the door body 2 is more inclined to move away from the box side wall 12, that is, the door body 2 is more inclined to move away from the external environment. This means that compared with moving forward, the door body 2 is more inclined to move inward.

[0159] When sliding along the second groove section, the movement range of the shaft body 311 away from the box front wall 11 is relatively greater than the movement range of the shaft body 311 away from the box side wall 12, that is, when moving in the second groove section, the door body 2 is more inclined to move away from the box front wall 12 than to move away from the box side wall 12. That is, compared with moving inward, the door body 2 is more inclined to move forward.

[0160] Before the door body 2 opens to the first angle, when the shaft body 311 slides relatively along the first groove section, the distance that the door body 2 moves forward relative to is smaller than the distance that it moves inward; when the door body 2 opens from the first angle to the second angle, the shaft body 311 slides along the second groove section, and at this time, the distance that the door body 2 moves inward is smaller than the distance that it moves forward, wherein the second angle is larger than the first angle.

[0161] The above structure allows the first track groove 321 to extend in an arc shape as a whole, and the arc formed by the first track line 321 arches in the direction away from the door outer edge 23, and the first track groove 321 extends in the direction gradually away from the box side wall 12 and the box front wall 11.

[0162] A coordinate system is established with the door outer edge 23 as the center, the plane where the door front wall 21 is located as the x direction, and the plane where the door side wall 22 is located as the y direction. The slope of the first groove segment extending direction is less than the slope of the second groove segment extending direction. With the direction in which the first track groove 321 is extended, the slope of the first track groove extending direction gradually increases. It should be noted that since the first track line 321 is a curve as a whole, the extension direction of the first track groove 321 is the extension direction of the tangent of the curve at the position of the first track groove 321.

[0163] In the embodiment where the shaft 311 is arranged on the door body 2 and the groove 32 is arranged on the box body 1, in the initial stage of the door body 2 being opened, the distance between the outer edge 23 of the door and the shaft 31 is greater than the distance between the inner edge 24 of the door and the shaft 31. Therefore, in the initial stage of the door body being opened, the movement amplitude of the outer edge 23 of the door is greater than the movement amplitude of the inner edge 24 of the door, which means that the outer edge 23 of the door is more susceptible to interference from external environmental components than the inner edge 24 of the door.

[0164] Therefore, when the first groove section moves, compared with the door body 2 moving away from the front wall 11 of the box, the door body 2 is more inclined to move inward, that is, it is more inclined to move away from the side wall 12 of the box, that is, the door body 2 is more inclined to move away from the external environment to avoid the door outer edge 23 being affected by interference from the external environment.

[0165] When the second slot section moves, compared with the door body 2 moving away from the box side wall 12, the door body 2 is more inclined to move in the front side, that is, it is more inclined to move in the direction away from the box front wall 12, that is, the door body 2 is more inclined to move in the direction away from the box body 1, so as to avoid the inner edge 24 of the door being affected by the interference of external environmental parts. The above-mentioned structure can be set to more finely control the opening process of the door body 2 according to the actual needs of the door body 2 during the opening process, and can better avoid the door body 2 from being interfered with during the opening process.

[0166] In the initial stage of the door body 2 opening, the door outer edge 23 first gradually moves toward the plane where the box side wall 12 is located, and then as the door body 2 is further opened, the door outer edge 23 gradually moves away from the plane where the door box side wall 12 is located. It should be noted that the movement of approaching or moving away from the box side wall 12 elsewhere in this document refers to the movement of approaching or moving away from the plane where the box side wall 12 is located. Correspondingly, the movement of approaching or moving away from the box front wall 11 elsewhere in this document refers to the movement of approaching or moving away from the plane where the box front wall 11 is located.

[0167] It can be understood that the refrigeration device is a refrigerator, and is a built-in refrigerator.

[0168] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge assembly, characterized in that: It comprises a movable shaft and a groove body; the groove body comprises a first track groove and a second track groove; the movable shaft has a shaft body, and the shaft body moves in the first track groove and the second track groove in sequence; The shaft body is slidably matched with the first track groove, and the hinge assembly further comprises a limit portion for limiting the circumferential rotation of the shaft body in the first track groove; the shaft body can rotate in the circumferential direction in the second track groove; The cross-section of the shaft body is flat as a whole, and the cross-section of the shaft body has a length direction and a width direction; the outer wall of the shaft body also has a pair of arcuate surfaces, and the pair of arcuate surfaces are arranged opposite to each other along the length direction; the arcuate surfaces intersect with the cross-section of the shaft body to form an arc line, and the central angle corresponding to the arc line is α; the angle β of the shaft body rotating circumferentially in the second trajectory groove is less than the supplementary angle of α.

2. The hinge assembly according to claim 1, characterized in that: The limiting portion is arranged on the outer wall of the shaft body, and the limiting portion comprises an abutting surface for abutting against the inner wall of the first track groove to limit the rotation of the shaft body in the first track groove.

3. The hinge assembly according to claim 2, characterized in that: A rotation limiter is provided in the second track groove; and a shaft body rotation limiter is provided on the shaft body; The shaft body rotation limiting portion is arranged on the outer wall of the shaft body, and the shaft body rotation limiting portion and the limiting portion are overlapped in position, and after the rotation limiting portion and the limiting portion abut against each other, the shaft body is restricted from rotating circumferentially in the second track groove.

4. The hinge assembly according to claim 3, characterized in that: A pair of the limiting parts are arranged along the width direction and symmetrically arranged on both sides of the shaft body; two rotation limiting parts are provided, and the two rotation limiting parts are centrally symmetrically arranged with the center of the second track groove as the symmetry point.

5. The hinge assembly according to claim 4, characterized in that: The rotation limiting portion is arranged on the inner wall of the second trajectory groove, and the inner wall of the second trajectory groove further has an arc-shaped inner wall, the arc-shaped inner wall is located beside the rotation limiting portion, the arc-shaped inner wall is adapted to the arc-shaped surface, the curvature of the arc-shaped inner wall is consistent with the curvature of the arc-shaped surface, and the arc length of the arc-shaped inner wall is greater than the arc length of the arc-shaped surface; The arc-shaped inner walls are provided in a pair, and the pair of arc-shaped inner walls are centrally symmetrically arranged with the center of the second track groove as a symmetric point; The second track groove includes a main section and a rotating section. The main section is opposite to the first track groove and serves as a natural extension of the first track groove toward the second track groove. The rotating section is used to avoid the shaft body when the shaft body rotates. Two rotating sections are provided, and the two rotating sections are centrally symmetrically arranged with the center of the main section as the symmetry point.

6. The hinge assembly according to claim 4, characterized in that: The cross section of the second track groove is circular as a whole, and the rotation limiting portion includes a protrusion arranged in the second track groove, and the protrusion protrudes from the inner wall of the second track groove toward the inside of the second track groove.

7. A refrigeration device, characterized in that: The invention comprises a box body having a containing space, a door body and a hinge assembly as claimed in any one of claims 1 to 6; the door body is pivoted on the box body through the hinge assembly to open or close the containing space; the box body has a box side wall and a box front wall; During the process of opening the door body, the shaft body moves in the first track groove and the second track groove in sequence; and when the shaft body moves along the first track groove, the door body moves relatively in a direction away from the box side wall and away from the box front wall.

8. The refrigeration device according to claim 7, characterized in that: The hinge assembly also has a hinge plate arranged on the box body, the slot body is arranged on the hinge plate, and the movable shaft is arranged on the door body; The first track groove is arc-shaped and extends as a whole in a direction gradually away from the box side wall and away from the box front wall.

9. The refrigeration device according to claim 7, characterized in that: The hinge assembly also has a hinge plate arranged on the box body, the movable shaft is arranged on the hinge plate, and the groove body is arranged on the door body; When the door body is in a closed state, the first track groove is in an arc shape as a whole, and extends in a direction gradually approaching the box side wall and the box front wall.

10. The refrigeration equipment according to claim 7, characterized in that: The refrigeration equipment is a refrigerator.

Images