CN117367007A

CN117367007A - Box device and refrigeration equipment

Info

Publication number: CN117367007A
Application number: CN202210777369.8A
Authority: CN
Inventors: 王保银; 邵向阳; 刘学康; 王晓斌; 余道军
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2024-01-09

Abstract

The application discloses box device and refrigeration plant, wherein box device includes: the self-locking device comprises a box body, a door body, a hinge assembly and a self-locking assembly. The self-locking assembly comprises an elastic piece and a clamping piece, wherein the clamping piece is provided with a most protruding point and a locking position, and after the elastic piece passes over the most protruding point of the clamping piece, the elastic piece is enabled to enter the locking position by the resilience force of the elastic piece, so that the door body is locked in a closed state; before the elastic piece and the clamping piece form contact, the sliding shaft moves in a first section of the sliding groove, before the elastic piece and the clamping piece form contact and reach the most protruding point, the sliding shaft moves in a second section of the sliding groove, in the process that the elastic piece reaches the locking position from the most protruding point, the sliding shaft moves in a third section of the sliding groove, the width of at least part of the third section of the sliding groove, which is close to the locking position, is larger than the width of the first section of the sliding groove, the fit clearance between the sliding shaft and the sliding groove is larger, the friction force between the sliding shaft and the sliding groove is smaller, the smoothness of closing the door at a small angle is effectively improved, and the door body and the box body are ensured to be closed.

Description

Box device and refrigeration equipment

Technical Field

The application belongs to refrigeration equipment technical field, concretely relates to box device and refrigeration equipment.

Background

For a case device having a door and a case, the door and the case are typically connected by a hinge so that the door can rotate relative to the case. At present, a self-locking structure of a hinge between a box body and a door body generally utilizes a self-locking hook and a hinge combination to generate a self-locking effect, but when the door body is at a small angle, the door body can not be closed due to insufficient self-locking force.

Disclosure of Invention

The application provides box device and refrigeration plant to solve the technical problem that current auto-lock hook and hinge subassembly self-locking force is not enough.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: a tank apparatus comprising: the box body is internally provided with an accommodating space, wherein the accommodating space is provided with an opening; the door body is used for sealing the opening; the hinge assembly is arranged on the pivoting side of the box body and is pivoted with the box body and the door body; the hinge assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on one of the box body and the door body, and the second connecting piece is arranged on the other one; the first connecting piece is at least provided with a sliding shaft, the second connecting piece is at least provided with a sliding groove, when the door body pivots relative to the box body, the sliding shaft moves along the sliding groove, and the sliding groove comprises a transition area; the self-locking assembly comprises an elastic piece and a clamping piece, wherein when the door body rotates from an open state to a closed state relative to the box body, the elastic piece and the clamping piece are separated from each other and are in transition to be in contact with each other, elastic deformation generated by the elastic piece under the action of the clamping piece forms a lateral pushing force, and the lateral pushing force generates a relative movement trend along the radial direction of the sliding shaft between the sliding shaft and the groove wall of the sliding groove; and when the sliding shaft is positioned at least in part of other groove sections outside the transition area, a second radial gap is formed between the sliding shaft and the groove wall of the sliding groove, and the first radial gap is smaller than the second radial gap.

In order to solve the technical problem, another technical scheme adopted by the application is as follows: a refrigeration device adopts the box body device.

The beneficial effects of this application are: when the door body rotates to be close to a closing state, namely, the sliding shaft is located in a third section of the sliding groove, since the width of at least part of the third section corresponding to the locking position of the elastic piece is larger than that of the first section of the sliding groove, the fit clearance between the sliding shaft and the sliding groove is larger, the friction force between the sliding shaft and the sliding groove is smaller, the resilience force of the elastic piece is prevented from being influenced, the smoothness of closing the door at a small angle is effectively improved, the door body and the box body are ensured to be closed, and the quality of the door device is improved.

Drawings

For a clearer description of the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of a part of an embodiment of a case device of the present application, wherein the case device is in a closed state;

FIG. 2 is a schematic view of a partially exploded construction of one embodiment of a tank assembly of the present application;

FIG. 3 is a schematic view of the structure of a second connector according to an embodiment of the case device of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a partial schematic view of another embodiment of the case device of the present application, with the case device in an open state;

FIG. 6 is a schematic view of a part of another embodiment of the case device of the present application, wherein the case device is in a closed state;

FIG. 7 is a schematic view of a second connector of another embodiment of the case apparatus of the present application;

FIG. 8 is a schematic view of a first connector of a further embodiment of the case apparatus of the present application;

FIG. 9 is a partial schematic view of another embodiment of the case device of the present application, with the case device in an open state;

FIG. 10 is a schematic view of a part of another embodiment of the case device of the present application, wherein the case device is in a closed state;

FIG. 11 is a schematic view of a second connector of a further embodiment of the case apparatus of the present application;

FIG. 12 is a schematic cross-sectional view of a further embodiment of the case apparatus of the present application;

FIG. 13 is an enlarged view of portion B of FIG. 12;

FIG. 14 is a partial schematic view of a further embodiment of the case apparatus of the present application, with the case apparatus in an open state;

FIG. 15 is a partial schematic view of another embodiment of the case device of the present application, with the case device in a closed state;

FIG. 16 is a schematic view of a second connector of a further embodiment of the case apparatus of the present application;

FIG. 17 is an enlarged schematic view of the portion C of FIG. 16;

FIG. 18 is a partial schematic view of a further embodiment of the case device of the present application, with the case device in an open state;

FIG. 19 is a partial schematic view of a further embodiment of the case apparatus of the present application, with the case apparatus in a closed position;

fig. 20 is a schematic structural view of a second connector according to still another embodiment of the case device of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 4, fig. 1 is a schematic partial structure of an embodiment of a box device according to the present application, where the box device is in a closed state; FIG. 2 is a schematic view of a partially exploded construction of one embodiment of a tank assembly of the present application; FIG. 3 is a schematic view of the structure of a second connector according to an embodiment of the case device of the present application; fig. 4 is an enlarged view of a portion a in fig. 3.

An embodiment of the present application provides a case apparatus 100. The case device 100 includes a case 110, a door 120, and a hinge assembly 130. Wherein, the inside of the case 110 forms an accommodating space having an opening. The door 120 is used to close off or open. The hinge assembly 130 is provided at a pivot side of the case 110, and the hinge assembly 130 pivotally connects the door 120 and the case 110, i.e., enables a rotational connection between the case 110 and the door 120. The door 120 can be opened or closed with respect to the case 110 by the hinge assembly 130. The hinge assembly 130 includes a first link 131 and a second link 132. The first connecting member 131 is disposed at one of the case 110 and the door 120, and the second connecting member 132 is disposed at the other of the door 120 and the case 110. The first connecting member 131 is provided with at least a first sliding shaft 1311, and the second connecting member 132 is provided with at least a first sliding groove 1321, and the first sliding shaft 1311 moves along the first sliding groove 1321 during the pivoting of the door 120 with respect to the housing 110. Specifically, the first connecting member 131 is disposed on the door 120, and the second connecting member 132 is disposed on the case 110; or the first connecting piece 131 is disposed on the door 120, and the second connecting piece 132 is disposed on the case 110.

Wherein, the first sliding groove 1321 is provided with a first interference area 133, and the first sliding shaft 1311 is in interference fit with the first sliding groove 1321 in the first interference area 133. The groove wall of at least one side of the first sliding groove 1321 of the first interference region 133 has a first elastic segment 1331, and the first elastic segment 1331 has a first maximum interference point 1332. After the door 120 rotates toward the case 110 until the first sliding shaft 1311 passes over the first maximum interference point 1332, the resilience of the first elastic segment 1331 makes the door 120 rotate toward the case 110, so that the door 120 can be automatically closed.

The box device 100 of the present application sets a first interference area 133 in the first sliding groove 1321, and the first interference area 133 has a first elastic segment 1331, when the first sliding shaft 1311 extrudes and passes over a first maximum interference point 1332 of the first elastic segment 1331, the resilience force of the first elastic segment 1331 drives the first sliding shaft 1311 to continue to move along the first sliding groove 1321, and the door 120 continues to rotate toward the box 110 side, even if the thrust of the user is lost, the door 120 can still be automatically closed. The box body device 100 of the application does not need to arrange corresponding self-locking devices on the first connecting piece 131 and the second connecting piece 132, simplifies the self-locking structure, reduces the cost and has a more concise and attractive appearance.

Specifically, in the process that the door 120 is rotated from the open state to the closed state relative to the case 110, the user pushes the door 120, the first sliding shaft 1311 moves along the first sliding groove 1321, and when the door 120 rotates to a certain angle relative to the case 110, the first sliding shaft 1311 presses the first elastic section 1331, and the first elastic section 1331 is deformed; when the first sliding shaft 1311 passes over the first maximum interference point 1332, even if the user does not push the door 120 any more, the resilience force generated by the deformation of the first elastic section 1331 can be converted into a self-locking force, and push the first sliding shaft 1311 to move along the first sliding groove 1321, and the door 120 continues to rotate towards the case 110 until the case 110 is attracted by the magnetic strip of the door 120, and then the door 120 is in a closed state. The user need not to promote the door body 120 completely to with box 110 closure, but with the door body 120 close to certain angle after, the door body 120 can realize automatic closing, has guaranteed the closeness of closing of door body 120 and box 110, improves user's convenience of use.

It should be noted that the setting position of the first interference area 133 in the first sliding groove 1321 may be adjusted according to the actual situation. When the first sliding shaft 1311 moves to the position of the first highest interference point in the first sliding groove 1321, the opening angle of the door 120 relative to the box 110 is a preset angle, and the setting position of the first interference area 133 in the first sliding groove 1321 can be adjusted according to the specific value of the preset angle, and the parameters of the first elastic section 1331 are adjusted, so that the door 120 can rotate towards the box 110 by using the resilience force of the first elastic section 1331 under the preset angle, and the door 120 can be automatically closed. The preset angle may be 10 ° -30 °, for example 10 °, 15 °,30 °, etc., the preset angle may also be 30 ° -60 °, for example 30 °, 45 ° or 60 °, etc., the preset angle may also be greater than 60 ° or less than 10 °, and may be adjusted according to practical situations.

In order to make the movement of the first sliding shaft 1311 in the first sliding groove 1321 smoother, in some embodiments, the first elastic section 1331 is configured such that the width of the first sliding groove 1321 gradually decreases from two sides of the first maximum interference point 1332 to the first maximum interference point 1332 in a natural state, so that when the first sliding shaft 1311 moves in the first sliding groove 1321, the width of the first sliding groove 1321 gradually changes, the first sliding shaft 1311 can gradually compress or gradually release the first elastic section 1331, and the first sliding shaft 1311 moves smoothly in the first sliding groove 1321, so that the occurrence of a jamming condition is avoided, and smooth door opening and closing of the door body 120 is ensured. The first sliding groove 1321 is formed by taking a direction perpendicular to the movement direction of the first sliding shaft 1311 in the first sliding groove 1321 as a first direction, and a distance between the first direction and an intersection point of groove walls on both sides of the first sliding groove 1321 is the width of the first sliding groove 1321.

Further, in order to avoid the jamming of closing the door, and simultaneously in order to form a larger self-locking force, the first elastic section 1331 includes a first front interference section 1333 and a first rear interference section 1334 located at two sides of the first maximum interference point 1332, and when the door body 120 rotates towards the box body 110, the first sliding shaft 1311 passes through the first front interference section 1333 and the first rear interference section 1334 in sequence, and the gradient of the first rear interference section 1334 is greater than that of the first front interference section 1333. The slope of the first front interference section 1333 is relatively slow, so that the door body 120 can be favorably extruded to gradually extrude the first front interference section 1333, and when the first sliding shaft 1311 passes through the first front interference section 1333, the door body 120 is closed smoothly, door closing jam is avoided, and door closing body 120 inspection is promoted. The slope of the first back side interference section 1334 is relatively steep, after the first sliding shaft 1311 passes over the first maximum interference point 13321332, the rebound process of the first back side interference section 1334 is faster, and a larger self-locking force can be formed to push the first sliding shaft 1311 to move along the first sliding groove 1321, and the rebound force of the first back side interference section 1334 enables the door 120 to rotate towards the box 110, so that the door 120 can be automatically closed.

In some embodiments, the first elastic segment 1331 is an elastic layer attached to the groove wall of the first sliding groove 1321. By providing the first elastic section 1331 on the groove wall of the first sliding groove 1321, after the door 120 rotates towards the box 110 until the first sliding shaft 1311 passes over the first maximum interference point 1332, the resilience of the first elastic section 1331 makes the door 120 rotate towards the box 110, so that the door 120 can be automatically closed. The first resilient segment 1331 may be of a resilient material, such as a polyoxymethylene material or the like. In other embodiments, the first resilient segment 1331 is formed by a slot wall of the resilient first slot 1321. The groove wall of the first runner 1321 is made of a resilient material, such as a polyoxymethylene material. Further, the second connection member 132 is formed of a polyoxymethylene material, such as a polyoxymethylene material or the like.

Specifically, the first elastic segments 1331 are disposed on both side slot walls of the first sliding slot 1321 in the first interference region 133. When the first sliding shaft 1311 moves along the first sliding groove 1321, the first sliding shaft 1311 presses the first elastic sections 1331 on both sides, and the resilience of the first elastic sections 1331 on both sides makes the door 120 rotate toward the case 110. The resilience of the first elastic section 1331 of the groove walls at both sides can better push the first sliding shaft 1311, so that the door 120 rotates toward the case 110.

In some embodiments, one of the first connecting member 131 and the second connecting member 132 is further provided with a second sliding shaft 1312, the other of the first connecting member 131 and the second connecting member 132 is further provided with a second sliding groove 1322, when the door 120 pivots relative to the case 110, the second sliding shaft 1312 moves along the second sliding groove 1322, the second sliding groove 1322 is provided with a second interference area 134, the second sliding shaft 1312 is in interference fit with the second sliding groove 1322 in the second interference area 134, at least one side groove wall of the second sliding groove 1322 in the second interference area 134 is provided with a second elastic section 1341, the second elastic section 1341 is provided with a second maximum interference point 1342, and after the door 120 rotates towards the case 110 until the second sliding shaft 1312 passes over the second maximum interference point 1342, the resilience of the second elastic section 1341 causes the door 120 to rotate towards the case 110.

The case device 100 of the present application may employ a single-axis or double-axis hinge assembly 130, and may employ a hinge assembly 130 having three or more axes.

By providing the second interference area 134 in the second sliding groove 1322, and the second interference area 134 has the second elastic section 1341, when the second sliding shaft 1312 presses and passes over the second maximum interference point 1342 of the second elastic section 1341, the resilience of the second elastic section 1341 drives the second sliding shaft 1312 to continue to move along the second sliding groove 1322, and the door 120 continues to rotate toward the box 110, so that the door 120 can still be automatically closed even if the thrust of the user is lost. The box device 100 of the present application, through the resilience force of the first elastic section 1331 and the second elastic section 1341, does not need to set up corresponding self-locking devices on the first connecting piece 131 and the second connecting piece 132, simplifies the self-locking structure, reduces the cost, and has a more concise and beautiful appearance.

In the process that the door 120 rotates from the open state to the closed state relative to the case 110, the user pushes the door 120, the second sliding shaft 1312 moves along the second sliding groove 1322, and when the door 120 rotates to a certain angle relative to the case 110, the second sliding shaft 1312 presses the second elastic section 1341, and the second elastic section 1341 deforms; when the second sliding shaft 1312 passes over the second maximum interference point 1342, even if the user does not push the door 120 any more, the resilience force generated by the deformation of the second elastic section 1341 can be converted into a self-locking force, and push the second sliding shaft 1312 to move along the second sliding groove 1322, and the door 120 is in a closed state after the door 120 continues to rotate towards the case 110 until the case 110 is attracted by the magnetic strip of the door 120. The user need not to promote the door body 120 completely to with box 110 closure, but with the door body 120 close to certain angle after, the door body 120 can realize automatic closing, has guaranteed the closeness of closing of door body 120 and box 110, improves user's convenience of use.

Specifically, the second sliding shaft 1312 may be disposed on the first connecting member 131, and the corresponding second sliding groove 1322 is disposed on the second connecting member 132, that is, the first sliding shaft 1311 and the second sliding shaft 1312 are disposed on the first connecting member 131, and the first sliding groove 1321 and the second sliding groove 1322 are disposed on the second connecting member 132. Alternatively, the second sliding groove 1322 is disposed on the first connecting member 131, and the corresponding second sliding shaft 1312 is disposed on the second connecting member 132, that is, the first sliding shaft 1311 and the second sliding groove 1322 are disposed on the first connecting member 131, and the second sliding shaft 1312 and the first sliding groove 1321 are disposed on the second connecting member 132.

To make the movement of the second sliding shaft 1312 within the second sliding groove 1322 smoother, in some embodiments, the second elastic segment 1341 is configured such that the width of the second sliding groove 1322 gradually decreases from two sides of the second maximum interference point 1342 to the second maximum interference point 1342 in a natural state, so that the width of the second sliding groove 1322 gradually changes when the second sliding shaft 1312 moves within the second sliding groove 1322, the second sliding shaft 1312 may gradually compress or gradually release the second elastic segment 1341, and the second sliding shaft 1312 moves smoothly within the second sliding groove 1322, thereby avoiding the occurrence of a jamming condition. The second sliding shaft 1312 is moved in the second sliding groove 1322 in the second direction, and the distance between the second direction and the intersection of the groove walls on both sides of the second sliding groove 1322 is the width of the second sliding groove 1322.

In some embodiments, the second elastic segment 1341 is an elastic layer attached to the groove wall of the second sliding groove 1322. By providing the second elastic section 1341 on the groove wall of the second sliding groove 1322, after the door 120 rotates toward the case 110 until the second sliding shaft 1312 passes over the second maximum interference point 1342, the resilience of the second elastic section 1341 makes the door 120 rotate toward the case 110, so as to achieve automatic closing of the door 120. The second elastic section 1341 may be made of a material having resiliency, such as a polyoxymethylene material or the like. In other embodiments, the first resilient segment 1331 is formed by a slot wall of the resilient first slot 1321. The groove wall of the second runner 1322 is made of a resilient material, such as a polyoxymethylene material. Further, the connecting piece where the second sliding groove 1322 is located is formed by using a polyoxymethylene material, for example, a polyoxymethylene material, etc.

Specifically, the second elastic sections 1341 are disposed on both side walls of the second sliding groove 1322 in the second interference area 134. When the second sliding shaft 1312 moves along the second sliding groove 1322, the second sliding shaft 1312 presses the second elastic sections 1341 on both sides, and the resilience of the second elastic sections 1341 on both sides makes the door 120 rotate toward the case 110. The resilience of the second elastic sections 1341 of the two side groove walls can better push the second sliding shaft 1312, so that the door 120 rotates toward the case 110.

Further, when the door 120 rotates relative to the case 110, the first sliding shaft 1311 and the second sliding shaft 1312 enter and leave the first interference area 133 and the second interference area 134 respectively, so that the acting force of the first interference area 133 on the first sliding shaft 1311 and the acting force of the second interference area 134 on the second sliding shaft 1312 can form a resultant force simultaneously, the door 120 rotates more smoothly, and door opening and closing is avoided.

Further, when the door 120 rotates relative to the case 110, the first sliding shaft 1311 and the second sliding shaft 1312 pass through the first maximum interference point 1332 and the second maximum interference point 1342 respectively, so that the maximum resilience force of the first elastic section 1331 to the first sliding shaft 1311 and the maximum resilience force of the second elastic section 1341 to the second sliding shaft 1312 can form a resultant force simultaneously, and the door 120 rotates towards the case 110, so that the door 120 rotates more smoothly, and the door 120 can be closed automatically better.

It should be noted that the first interference region 133 in the present application may function as a self-locking component in the following embodiments, and other structures in the following embodiments may be adaptively incorporated in the present application.

Referring to fig. 5 to 8, fig. 5 is a schematic partial structure of another embodiment of the case device according to the present application, where the case device is in an open state; FIG. 6 is a schematic view of a part of another embodiment of the case device of the present application, wherein the case device is in a closed state; FIG. 7 is a schematic view of a second connector of another embodiment of the case apparatus of the present application; fig. 8 is a schematic structural view of a first connector according to still another embodiment of the case device of the present application.

An embodiment of the present application provides a case 210 device 200. The case 210 device 200 includes a case 210, a door 220, a hinge assembly 230, and a self-locking assembly 240. Wherein, the interior of the case 210 forms an accommodating space having an opening. The door 220 is used to close off or open. The hinge assembly 230 is provided such that the hinge assembly 230 pivotally connects the door 220 and the case 210 at a pivot side of the case 210, i.e., a rotational connection between the case 210 and the door 220 is achieved. The door 220 can be opened or closed with respect to the case 210 by the hinge assembly 230. The self-locking assembly 240 includes an elastic member 241 and a locking member 242, wherein the elastic member 241 is disposed on one of the case 210 and the door 220, and the locking member 242 is disposed on the other of the case 210 and the door 220. The locking piece 242 has a protruding point 2421 and a locking position 2422, the protruding point 2421 is a position point on the locking piece 242 where the elastic deformation of the elastic piece 241 is the greatest, when the door 220 rotates from the open state to the closed state relative to the case 210, the elastic piece 241 and the locking piece 242 contact each other, and after the elastic piece 241 passes over the protruding point 2421 of the locking piece 242, the locking position 2422 is entered, so as to lock the door 220 in the closed state.

Wherein, the bump 2421 and the locking position 2422 are continuously and smoothly transited, and in the process that the elastic member 241 enters the locking position 2422 from the bump 2421, the deformation of the elastic member 241 is gradually recovered, and the resilience force of the elastic member 241 is gradually released, so that the door 220 is gradually rotated to the side of the box 210 by the resilience force, and the automatic closing of the door 220 can be realized. The deformation rebound release process of the elastic piece 241 of the box 210 device 200 is gentle, no obvious stress abrupt change inflection point exists, shaking and pause feeling of the door 220 in the door closing process are avoided, noise in the door 220 closing process is reduced, and user experience is improved.

Specifically, in the process that the door 220 rotates from the open state to the closed state relative to the case 210, the user pushes the door 220, after the door 220 rotates to a certain angle relative to the case 210, the clamping piece 242 contacts and presses the elastic piece 241, after the elastic piece 241 passes over the most protruding point 2421 of the clamping piece 242, the resilience force generated by the deformation of the elastic piece 241 can be converted into a self-locking force for pushing the door 220 to continue to rotate towards the case 210, and due to the continuous smooth transition between the most protruding point 2421 and the locking position 2422, the resilience force of the elastic piece 241 is gradually released, so that the deformation of the elastic piece 241 is gradually recovered, the door 220 is gradually rotated towards the case 210 by the resilience force, and the door 220 is in the closed state after the door 220 continues to rotate towards the case 210 and is attracted by the magnetic stripe of the door 220. The user does not need to push the door 220 to be closed with the box 210 completely, but closes the door 220 to a certain angle, the door 220 can be closed automatically, the closing tightness of the door 220 and the box 210 is ensured, and the use convenience of the user is improved.

The elastic member 241 may be disposed on the door 220, and the fastening member 242 may be disposed on the case 210. Alternatively, the elastic member 241 may be disposed on the case 210, and the fastening member 242 may be disposed on the door 220.

It should be noted that the position of the protruding point 2421 of the clamping member 242 can be adjusted according to the actual situation. When the elastic member 241 passes the position of the protruding point 2421 of the clamping member 242, the opening angle of the door 220 relative to the box 210 is a preset angle, and the setting position of the protruding point 2421 of the clamping member 242 can be adjusted according to the specific value of the preset angle, and the parameters of the elastic member 241 can be adjusted, so that the door 220 can rotate towards the box 210 by using the resilience force of the first elastic section under the preset angle, and the door 220 can be automatically closed. The preset angle can be 10-30 degrees, such as 10 degrees, 15 degrees, 30 degrees and the like, and can be more than 30 degrees or less than 10 degrees and can be adjusted according to practical conditions.

In some embodiments, the elastic member 241 is configured in a hook shape and has a fixed end 2411 and a free end 2412, wherein the elastic member 241 extends away from the clamping member 242 in a direction from the fixed end 2411 to the free end 2412, and then extends toward the clamping member 242, and the free end 2412 is used for contacting with the clamping member 242.

In some embodiments, the clip 242 includes a first contact section 2423 and a second contact section 2424 on either side of the bump 2421. The elastic member 241 contacts the first contact section 2423 and the second contact section 2424 in sequence during the rotation of the door 220 from the opened state to the closed state with respect to the housing 210. Wherein the second contact section 2424 connects the bump 2421 and the locking position 2422, the second contact section 2424 has a continuous smooth transition.

During the process of the door 220 rotating from the open state to the closed state toward the case 210 side, the first contact section 2423 contacts the elastic member 241 first, and the first contact section 2423 contacts and presses the elastic member 241; after the elastic member 241 passes over the protruding point 2421 of the clamping member 242, the second contact section 2424 contacts with the elastic member 241, and the resilience force generated by the deformation of the elastic member 241 can be converted into a self-locking force for pushing the door 220 to rotate towards the box 210, and since the second contact section 2424 is in continuous smooth transition, the deformation of the elastic member 241 is gradually recovered, so that the resilience force of the elastic member 241 is gradually released, and the door 220 is gradually rotated towards the box 210 until the elastic member 241 contacts with the locking position 2422, and the door 220 is in a closed state.

Specifically, the second contact section 2424 is provided in a circular arc shape protruding to the outside of the clamping piece 242. In the process of rotating with the door body 220, after the elastic element 241 passes over the most protruding point 2421 of the clamping element 242, since the second contact section 2424 is in a circular arc shape protruding towards the outside of the clamping element 242, the elastic element 241 gradually moves to the locking position 2422 along the most protruding point 2421 of the second contact section 2424, the elastic element 241 gradually resumes deformation, the resilience force of the elastic element 241 is gradually released, the door body 220 gradually rotates towards the side of the box body 210 until the door body 220 is closed, the door body 220 rotates smoothly, shaking and frustration in the closing process of the door body 220 are avoided, the closing noise of the door body 220 is reduced, and the user experience is improved.

Further, the first contact section 2423 is continuously and smoothly transited, and during the closing process of the door 220, the elastic member 241 contacts the first contact section 2423, so that the deformation process of the elastic member 241 is gentle, and the shaking and the jamming caused by the rotation of the door 220 are avoided.

In some embodiments, the second contact section 2424 is circular arc shaped, and the radius of the circular arc of the second contact section 2424 is 5mm or more, such as 5mm, 8mm, 10mm, 14mm, or the like. The arc length of the second contact section 2424 is 11mm or more, for example 11mm, 15mm, 18mm, or the like. In the process that the door 220 rotates from the open state to the closed state, the second contact section 2424 can gradually reduce the extrusion to the elastic element 241, the elastic element 241 gradually recovers the deformation, the resilience force of the elastic element 241 is gradually released, the door 220 gradually rotates towards the box 210 side by the resilience force until the door 220 rotates smoothly in the closed state, shaking and jerking in the closing process of the door 220 are avoided, the closing noise of the door 220 is reduced, and the user experience is improved. In other embodiments, the second contact section 2424 may be formed into a smooth streamline shape by a plurality of circular arcs with different radii, and only the deformation of the elastic member 241 is gradually recovered and the resilience of the elastic member 241 is gradually released during the process of the elastic member 241 entering the locking position 2422 from the protruding point 2421.

Wherein, during the contact of the elastic member 241 with the second contact section 2424, the rotation angle of the door 220 with respect to the housing 210 is greater than 10 °, for example, 10 °, 14 °, 16 °, 20 °, etc. In the process that the elastic piece 241 is contacted with the second contact section 2424, the door body 220 rotates by a sufficient angle relative to the box body 210, the elastic piece 241 can be gradually restored to deform, the resilience force of the elastic piece 241 is gradually released, the door body 220 gradually rotates towards the box body 210 side by the resilience force until the door body 220 is in a closed state, the door body 220 rotates smoothly, shaking and frustration in the closing process of the door body 220 are avoided, closing noise of the door body 220 is reduced, and user experience is improved.

In some embodiments, the hinge assembly 230 includes a first connector 231 and a second connector 232, the first connector 231 being provided to one of the case 210 and the door 220, and the second connector 232 being provided to the other. Specifically, the first connecting member 231 is disposed on the door 220, and the second connecting member 232 is disposed on the case 210; or the first connecting member 231 is disposed on the door 220, and the second connecting member 232 is disposed on the case 210.

Wherein, the first connecting member 231 and the second connecting member 232 are respectively provided with a first sliding shaft 2311 and a first sliding groove 2321 which are matched with each other, and a second sliding shaft 2312 and a second sliding groove 2322 which are matched with each other. Wherein the first sliding shaft 2311 moves along the first sliding groove 2321 and the second sliding shaft 2312 moves along the second sliding groove 2322 when the door 220 pivots with respect to the case 210. Specifically, the first sliding shaft 2311 and the second sliding shaft 2312 may be disposed on the first link 231, and the corresponding first sliding groove 2321 and the second sliding groove 2322 are disposed on the second link 232. Alternatively, the first sliding groove 2321 and the second sliding groove 2322 are disposed on the first connection member 231, and the corresponding first sliding shaft 2311 and the second sliding shaft 2312 are disposed on the second connection member 232. Alternatively, one of the first sliding shaft 2311 and the second sliding shaft 2312 is disposed on the first link 231, the other is disposed on the second link 232, and the corresponding one of the first sliding groove 2321 and the second sliding groove 2322 is disposed on the second link 232, and the other is disposed on the first link 231.

Wherein, because the sliding groove and the sliding shaft of the biaxial hinge do not move circularly, there is a space in cooperation between the sliding shaft and the sliding groove, and the unilateral distance between the first sliding shaft 2311 and the groove wall of the first sliding groove 2321 and the unilateral distance between the second sliding shaft 2312 and the groove wall of the second sliding groove 2322 are less than or equal to 0.15mm. By reducing the fit clearance between the slide shaft and the slide groove, the possible shaking of the slide shaft in the process of moving along the slide groove can be reduced.

During the process of the elastic member 241 contacting the second contact section 2424, the running distance of the first sliding shaft 2311 in the first sliding groove 2321 is greater than or equal to 6mm, and the running distance of the second sliding shaft 2312 in the second sliding groove 2322 is greater than or equal to 5mm. The first sliding shaft 2311 and the second sliding shaft 2312 move in the first sliding groove 2321 and the second sliding groove 2322 respectively for a sufficient distance, the elastic piece 241 can be gradually restored to be deformed, the resilience force of the elastic piece 241 is gradually released, the door body 220 is gradually rotated to the side of the box body 210 by the resilience force until the door body 220 is in a closed state, the door body 220 rotates smoothly, shaking and jerking in the closing process of the door body 220 are avoided, closing noise of the door body 220 is reduced, and user experience is improved.

Further, the elastic member 241 and the clamping member 242 are disposed on the first connecting member 231 and the second connecting member 232, respectively. The radius of the arc of the second contact section 2424 is 14mm or more, for example 14mm, 16mm, 18mm or the like. Since the radius of the arc of the second contact section 2424 is 14mm or more. In the process that the door 220 rotates from the open state to the closed state, the second contact section 2424 can gradually reduce the extrusion to the elastic element 241, the elastic element 241 gradually recovers the deformation, the resilience force of the elastic element 241 is gradually released, the door 220 gradually rotates towards the box 210 side by the resilience force until the door 220 rotates smoothly in the closed state, shaking and jerking in the closing process of the door 220 are avoided, the closing noise of the door 220 is reduced, and the user experience is improved.

In some embodiments, when the elastic member 241 is in contact with the first contact section 2423, an angle between a tangent line of the first contact section 2423 at a contact point formed by the elastic member 241 and the first contact section 2423 and a tangent line of the elastic member 241 at the contact point is 10 ° or less, for example, 10 °, 8 °, or 5 °. Therefore, during the rotation of the door 220, when the door 220 rotates from the open state to the closed state, the first contact section 2423 gradually compresses the elastic member 241 when the elastic member 241 starts to contact with the first contact section 2423, so as to avoid the shaking of the door 220 caused by the sudden stress deformation when the elastic member 241 starts to contact with the clamping member 242. In addition, in the process of rotating the door 220 from the closed state to the open state, when the elastic member 241 is contacted with the first contact section 2423 and is separated from the first contact section 2423, the elastic member 241 can gradually release the resilience force, so that the door 220 rotates smoothly, shaking and frustration in the process of opening the door 220 are avoided, the rotation noise of the door 220 is reduced, and the user experience is improved.

Referring to fig. 9 to 13, fig. 9 is a schematic partial structure of a further embodiment of the case device according to the present application, where the case device is in an open state; FIG. 10 is a schematic view of a part of another embodiment of the case device of the present application, wherein the case device is in a closed state; FIG. 11 is a schematic view of a second connector of a further embodiment of the case apparatus of the present application;

FIG. 12 is a schematic cross-sectional view of a further embodiment of the case apparatus of the present application; fig. 13 is an enlarged view of a portion B in fig. 12.

Yet another embodiment of the present application provides a case apparatus 300. The case apparatus 300 includes a case 310, a door 320, a hinge assembly 330, and a self-locking assembly 340. Wherein, the inside of the case 310 forms an accommodating space having an opening. The door 320 is used to close or open. The hinge assembly 330 is disposed at a pivot side of the case 310, and the hinge assembly 330 pivotally connects the door 320 and the case 310, i.e., enables a rotational connection between the case 310 and the door 320. The door 320 is opened or closed with respect to the case 310 by the hinge assembly 330. The hinge assembly 330 includes a first connector 331 and a second connector 332. The first connector 331 is disposed at one of the case 310 and the door 320, and the second connector 332 is disposed at the other of the door 320 and the case 310. The first connecting member 331 is provided with at least a sliding shaft 3310, and the second connecting member 332 is provided with at least a sliding groove 3320, and the sliding shaft 3310 moves along the sliding groove 3320 during the pivoting of the door 320 with respect to the case 310. Specifically, the first connector 331 is disposed on the door 320, and the second connector 332 is disposed on the box 310; or the first connector 331 is disposed on the door 320, and the second connector 332 is disposed on the case 310. The self-locking assembly 340 includes an elastic member 341 and a locking member 342, and the elastic member 341 and the locking member 342 are separated from each other and transition into contact with each other when the door 320 is rotated from the open state to the closed state with respect to the case 310.

When the clamping member 342 contacts and presses the elastic member 341, the elastic member 341 is elastically deformed under the action of the clamping member 342 to form a resilient force, and the resilient force can push the sliding shaft 3310 to move along the sliding groove 3320, so as to be converted into a self-locking force for pushing the door 320 to continue to rotate toward the box 310, and the door 320 can gradually rotate toward the box 310 until the door 320 is in a closed state. Meanwhile, the elastic deformation of the elastic member 341 generated by the clamping member 342 may form a lateral pushing force, and since the sliding shaft 3310 moves in the sliding slot 3320, the sliding shaft 3310 and the sliding slot 3320 have a certain fit clearance, the lateral pushing force generates a relative movement trend along the radial direction of the sliding shaft 3310 between the sliding shaft 3310 and the slot wall of the sliding slot 3320, so that the sliding shaft 3310 shakes in the sliding slot 3320, and further the door 320 shakes and is jolted in the rotation process. The case device 300 is further provided with a force splitting mechanism 350, the force splitting mechanism 350 splitting the lateral pushing force into a first force component and splitting the gravity of the door 320 into a second force component, the first force component and the second force component being opposite to each other. By providing the force decomposing mechanism 350, the component force of gravity of the door 320 can be utilized to balance the component force of the lateral pushing force formed by the elastic deformation of the elastic member 341 in the radial direction of the sliding shaft 3310, so that the sliding shaft 3310 can move smoothly in the sliding chute 3320, and shaking of the sliding shaft 3310 in the sliding chute 3320 can be reduced or even avoided. The door body 320 of the box body device 300 rotates smoothly, the clearance fit problem caused by design and manufacturing tolerances of the sliding shaft 3310 and the sliding groove 3320 is avoided, shaking and pause feeling in the door opening and closing process of the door body 320 are reduced or even avoided, door opening and closing noise of the door body 320 is reduced, and user experience is improved. The force decomposing mechanism 350 and the self-locking assembly 340 have simple structure, mature process, convenient manufacture and low cost.

It should be noted that, the clamping member 342 presses and compresses the elastic member 341, and a portion of the resilience force generated by the elastic deformation of the elastic member 341 forms a lateral pushing force to generate a relative movement trend along the radial direction of the sliding shaft 3310 between the sliding shaft 3310 and the groove wall of the sliding groove 3320, and another portion of the resilience force generated by the elastic deformation of the elastic member 341 may push the sliding shaft 3310 to move along the sliding groove 3320.

In some embodiments, the force resolution mechanism 350 includes a first contact portion 351 disposed on the slide shaft 3310 and a second contact portion 352 disposed on a slot wall of the slot 3320. Wherein the first contact portion 351 and the second contact portion 352 are in contact with each other, and at least one of the first contact portion 351 and the second contact portion 352 is disposed obliquely with respect to the radial cross section of the slide shaft 3310, thereby decomposing the lateral pushing force and the gravity of the door body 320 into a first force component and a second force component in an oblique direction of at least one of the first contact portion 351 and the second contact portion 352 with respect to the radial cross section of the slide shaft 3310. The second force component decomposed by the gravity of the door body 320 can balance the first force component decomposed by the lateral pushing force of the elastic piece 341, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, shaking of the sliding shaft 3310 in the sliding groove 3320 is reduced or even avoided, the door body 320 can rotate smoothly, shaking and frustration in the closing process of the door body 320 are reduced or even avoided, door opening and closing noise of the door body 320 is reduced, and user experience is improved.

Specifically, the first contact portion 351 is located at an end of the sliding shaft 3310 near the first connecting member 331, and the second contact portion 352 is located at a notch of the sliding chute 3320; alternatively, the first contact portion 351 is located at an end of the sliding shaft 3310 away from the first connector 331, and the second contact portion 352 is located at a bottom of the sliding chute 3320.

In some embodiments, the chute 3320 includes a first chute 3321 and a second chute 3322, and the slide shaft 3310 includes a first slide shaft 3311 and a second slide shaft 3312. The first contact portion 351 is disposed on at least one of the first slide shaft 3311 and the second slide shaft 3312, and the second contact portion 352 is disposed on at least one of the first slide groove 3321 and the second slide groove 3322. Specifically, the first contact portion 351 and the second contact portion 352 are disposed on the first slide shaft 3311 and the first slide groove 3321; alternatively, the first contact portion 351 and the second contact portion 352 are disposed on the second slide shaft 3312 and the second slide groove 3322; alternatively, the first contact portion 351 is provided in each of the first slide shaft 3311 and the second slide shaft 3312, and the second contact portion 352 is provided in each of the first slide groove 3321 and the second slide groove 3322, respectively.

In order to increase the contact area of the first contact portion 351 and the second contact portion 352 and reduce wear, the first contact portion 351 and the second contact portion 352 are inclined planes which are inclined with respect to the radial cross section of the sliding shaft 3310 and have the same inclination angle, so that the first contact portion 351 and the second contact portion 352 are in surface contact, the contact area of the first contact portion 351 and the second contact portion 352 is increased, wear between the first contact portion 351 and the second contact portion 352 can be reduced when the sliding shaft 3310 moves in the sliding groove 3320, the smoothness of movement of the door body 320 is improved, and the service life of the box device 300 is prolonged.

Of course, in other embodiments, the first contact portion 351 and the second contact portion 352 may be inclined surfaces disposed obliquely with respect to the radial cross section of the slide shaft 3310 and having different inclination angles, and the first contact portion 351 and the second contact portion 352 may be in line contact. Alternatively, the first contact portion 351 and the second contact portion 352 may be curved surfaces which are inclined with respect to the radial cross section of the slide shaft 3310 and which are shaped to be fitted, and the first contact portion 351 and the second contact portion 352 may be in surface contact. Alternatively, the first contact portion 351 and the human contact portion 352 may be curved surfaces which are inclined with respect to the radial cross section of the slide shaft 3310 and which are not perfectly fitted to each other in shape, and the first contact portion 351 and the second contact portion 352 may be in line contact. Alternatively, one of the first contact portion 351 and the second contact portion 352 may be a slope or a curved surface provided obliquely with respect to a radial cross section of the slide shaft 3310, the other of the first contact portion 351 and the second contact portion 352 may be rectangular, and the first contact portion 351 and the second contact portion 352 may be in line contact. The plurality of arrangement forms of the first contact portion 351 and the second contact portion 352 can decompose the lateral pushing force and the gravity of the door body 320 into a first force component and a second force component along the inclination direction of at least one of the first contact portion 351 and the second contact portion 352 relative to the radial section of the sliding shaft 3310, and the second force component can balance the first component force, so that the sliding shaft 3310 can smoothly move in the sliding chute 3320, the sliding shaft 3310 is reduced or even prevented from shaking in the sliding chute 3320, the door body 320 can smoothly rotate, shaking and jerking caused in the door opening and closing process of the door body 320 are reduced or even avoided, the door opening and closing noise of the door body 320 is reduced, and the user experience is improved.

When the first contact portion 351 and the second contact portion 352 are inclined surfaces which are inclined with respect to the radial cross section of the sliding shaft 3310 and have the same inclination angle, in order to increase the second force component decomposed by the gravity with respect to the inclination direction of the radial cross section of the sliding shaft 3310, the door body 320 is prevented from shaking in the vertical direction, and the inclination angle of the first contact portion 351 and the second contact portion 352 with respect to the radial cross section of the sliding shaft 3310 is 45 ° or more and less than 90 °, for example 45 °, 60 °, or 70 °, etc., so that the second force component decomposed by the gravity with respect to the inclination direction of the radial cross section of the sliding shaft 3310 can be increased, so that the second force component is greater than or equal to the first force component, and the door body 320 is prevented from shaking in the vertical direction.

In some embodiments, the width of the orthographic projection of the first contact portion 351 and the second contact portion 352 on the radial cross section of the slide shaft 3310 is 0.6mm or more, for example, 0.6mm,0.75mm, 1mm, or the like. By increasing the width of the orthographic projection of the first contact portion 351 and the second contact portion 352 on the radial cross section of the sliding shaft 3310, the contact area of the first contact portion 351 and the second contact portion 352 can be increased, the pressure between the first contact portion 351 and the second contact portion 352 can be reduced, the abrasion between the first contact portion 351 and the second contact portion 352 can be reduced, the smoothness of movement of the door body 320 can be improved, and the service life of the case device 300 can be prolonged.

In some embodiments, the height of the orthographic projection of the first contact portion 351 on the axial cross-section of the sliding shaft 3310 is greater than the height of the orthographic projection of the second contact portion 352 on the axial cross-section of the sliding shaft 3310. At this time, there is a difference in height between the first contact portion 351 and the second contact portion 352, the first contact portion 351 being larger in surface than the second contact portion, and when the slide shaft 3310 and the slide groove 3320 have a relative movement in the axial direction of the slide shaft 3310, the first contact portion 351 and the second contact portion 352 may be kept in contact all the time, so that the lateral pushing force and the gravity of the door body 320 are decomposed into a first force component and a second force component in an oblique direction of at least one of the first contact portion 351 and the second contact portion 352 with respect to the radial section of the slide shaft 3310. Therefore, the second force component decomposed by the gravity of the door body 320 can balance the first force component decomposed by the lateral pushing force of the elastic piece 341, so that the sliding shaft 3310 can move smoothly in the sliding groove 3320, shaking of the sliding shaft 3310 in the sliding groove 3320 is reduced or even avoided, the door body 320 can rotate smoothly, shaking and frustration in the door opening and closing process of the door body 320 are reduced or even avoided, door opening and closing noise of the door body 320 is reduced, and user experience is improved. In addition, the first contact portion 351 and the second contact portion 352 have a height difference, and the first contact portion 351 is larger than the second contact portion, so that the adaptability of the force resolution mechanism 350 can be improved, and certain manufacturing and mounting errors can be offset.

When the elastic member 341 and the engaging member 342 are separated from each other, the outer peripheral wall of the sliding shaft 3310 and the groove wall of the sliding groove 3320 have a radial gap a along the radial direction of the sliding shaft 3310, and the contact area of the first contact portion 351 and the second contact portion 352 has a play margin B along the axial direction of the sliding shaft 3310, where the play margin is greater than or equal to a first preset value, and the first preset value is the product of the tangent value tan β of the inclination angle β of the first contact portion 351 and the radial gap a, i.e., B is greater than or equal to a. Therefore, the sliding shaft 3310 and the sliding groove 3320 can be completely contacted through the first contact part 351 and the second contact part 352, the gravity of the door body 320 can completely act on the first contact part 351 and the second contact part 352, the second force component decomposed by the gravity of the door body 320 can fully balance the first component force decomposed by the lateral pushing force of the elastic piece 341, the sliding shaft 3310 can smoothly move in the sliding groove 3320, the sliding shaft 3310 is prevented from swinging in the sliding groove 3320, the door body 320 can smoothly rotate, swinging and frustration in the door opening and closing process of the door body 320 are avoided, door opening and closing noise of the door body 320 is reduced, and user experience is improved.

Similarly, the free end of the sliding shaft 3310 has a certain gap with the bottom wall of the sliding chute 3320, so that the sliding shaft 3310 and the sliding chute 3320 can completely contact through the first contact portion 351 and the second contact portion 352, the gravity of the door body 320 can completely act on the first contact portion 351 and the second contact portion 352, and the second force component decomposed by the gravity of the door body 320 can fully balance the first force component decomposed by the lateral pushing force of the elastic member 341, so that the sliding shaft 3310 moves smoothly in the sliding chute 3320, and the sliding shaft 3310 is prevented from shaking in the sliding chute 3320.

Referring to fig. 14 to 17, fig. 14 is a schematic partial structure of another embodiment of the case device according to the present application, where the case device is in an open state; FIG. 15 is a partial schematic view of another embodiment of the case device of the present application, with the case device in a closed state; FIG. 16 is a schematic view of a second connector of a further embodiment of the case apparatus of the present application;

fig. 17 is an enlarged schematic view of the portion C in fig. 16.

Yet another embodiment of the present application provides a case apparatus 400. The case apparatus 400 includes a case 410, a door 420, a hinge assembly 430, and a self-locking assembly 440. Wherein, the interior of the case 410 forms an accommodating space having an opening. The door 420 is used to close off or open. The hinge assembly 430 is disposed at a pivot side of the case 410, and the hinge assembly 430 pivotally connects the door 420 and the case 410, i.e., enables a rotational connection between the case 410 and the door 420. The door 420 is opened or closed with respect to the case 410 by the hinge assembly 430. The hinge assembly 430 includes a first connection member 431 and a second connection member 432. The first connection member 431 is disposed at one of the case 410 and the door 420, and the second connection member 432 is disposed at the other of the door 420 and the case 410. The first connection member 431 is provided with at least a sliding shaft 4310, and the second connection member 432 is provided with at least a sliding groove 4320, wherein the sliding shaft 4310 moves along the sliding groove 4320 during the pivoting of the door 420 relative to the case 410. Specifically, the first connection member 431 is disposed on the door 420, and the second connection member 432 is disposed on the case 410; or the first connection member 431 is disposed on the door 420, and the second connection member 432 is disposed on the case 410. The self-locking assembly 440 includes an elastic member 441 and a locking member 442, and the elastic member 441 and the locking member 442 are separated from each other and transition into contact with each other when the door 420 is rotated from an open state to a closed state with respect to the case 410.

When the clamping member 442 contacts and presses the elastic member 441, the elastic member 441 generates elastic deformation under the action of the clamping member 442 to form a resilient force, and the resilient force can push the sliding shaft 4310 to move along the sliding groove 4320, so as to be converted into a self-locking force that pushes the door 420 to continue to rotate toward the case 410, and the door 420 can gradually rotate toward the case 410 until the door 420 is in a closed state. Meanwhile, the elastic deformation of the elastic member 441 under the action of the locking member 442 can form a lateral pushing force, and since the sliding shaft 4310 moves in the sliding slot 4320, the sliding shaft 4310 and the sliding slot 4320 have a certain fit clearance, the lateral pushing force generates a relative movement trend along the radial direction of the sliding shaft 4310 between the sliding shaft 4310 and the slot wall of the sliding slot 4320, so that the sliding shaft 4310 shakes in the sliding slot 4320, and further the door 420 shakes and is jolted in the rotation process. Wherein the chute 4320 comprises a transition region 450, and the sliding shaft 4310 is positioned in the transition region 450 during at least a portion of the contact between the elastic member 441 and the locking member 442. When the sliding shaft 4310 is located in the transition region 450, a first radial gap is provided between the sliding shaft 4310 and the groove wall of the sliding groove 4320, and when the sliding shaft 4310 is located in at least part of the other groove section outside the transition region 450, a second radial gap is provided between the sliding shaft 4310 and the groove wall of the sliding groove 4320, wherein the first radial gap is smaller than the second radial gap. By providing the transition region 450, when the sliding shaft 4310 is positioned within the transition region 450, the first radial clearance between the sliding shaft 4310 and the groove wall of the sliding groove 4320 is less than the second radial clearance when the sliding shaft 4310 is positioned at least partially in the other groove segment, and the transition region 450 can reduce or even avoid sliding of the sliding shaft 4310 between the sliding shaft 4310 and the groove wall of the sliding groove 4320 due to lateral pushing force. The door body 420 of the box body device 400 rotates smoothly, the clearance fit problem of the sliding shaft 4310 and the sliding groove 4320 due to design and manufacturing tolerance is avoided, shaking and pause feeling in the closing process of the door body 420 are reduced or even avoided, the closing noise of the door body 420 is reduced, and the user experience is improved. The force decomposition mechanism and the self-locking assembly 440 have simple structure, mature process, convenient manufacture and low cost.

In some embodiments, the locking element 442 has a protruding point 4421, the protruding point 4421 is a location point on the locking element 442 where the elastic deformation of the elastic element 441 is maximum, at this time, the elastic element 441 reaches the maximum deformation, and the lateral pushing force generated by the elastic deformation of the elastic element 441 under the action of the locking element 442 reaches the maximum, at this time, the sliding shaft 4310 is more prone to shake in the sliding groove 4320. At least in the predetermined contact range before and after the most protruding point 4421, the sliding shaft 4310 is located in the transition region 450, so that the shaking of the sliding shaft 4310 in the sliding groove 4320 in the predetermined contact range before and after the most protruding point 4421 can be reduced or even avoided, the shaking and the frustration of the door body 420 in the door opening and closing process can be reduced or even avoided, the noise of the door body 420 in the door opening and closing process can be reduced, and the user experience can be improved.

Specifically, in the process that the door 420 rotates from the open state to the closed state relative to the case 410, the user pushes the door 420, after the door 420 rotates to a certain angle relative to the case 410, the clamping member 442 contacts and presses the elastic member 441, after the elastic member 441 passes over the protruding point 4421 of the clamping member 442, the resilience force generated by the deformation of the elastic member 441 can be converted into a self-locking force that pushes the door 420 to continue to rotate toward the case 410, the door 420 is gradually rotated toward the case 410 by the resilience force, and the door 420 continues to rotate toward the case 410 until the magnetic strips of the door 420 attract each other. The user does not need to push the door 420 to be closed with the box 410 completely, but closes the door 420 to a certain angle, and the door 420 can be closed automatically, so that the closing tightness of the door 420 and the box 410 is ensured, and the use convenience of the user is improved. Because the sliding shaft 4310 is positioned in the transition region 450 within the predetermined contact range before and after the most protruding point 4421, the shaking of the sliding shaft 4310 in the sliding groove 4320 can be reduced or even avoided, the shaking and the frustration of the door body 420 in the door opening and closing process can be reduced or even avoided, the noise of the door body 420 in the door opening and closing process can be reduced, and the user experience can be improved.

Further, when the elastic member 441 contacts the protruding point 4421 of the engaging member 442, the sliding shaft 4310 is located at the predetermined reference point C1 in the transition region 450. The width of the sliding groove 4320 in the transition area 450 gradually widens from the preset reference point C1 to two sides, so that when the sliding shaft 4310 moves in the sliding groove 4320, along with the increase of the lateral pushing force formed by the elastic deformation generated by the elastic element 441 under the action of the clamping element 442, the width of the sliding groove 4320 in the transition area 450 gradually narrows at the position where radial offset is more likely to occur, shaking of the sliding shaft 4310 in the sliding groove 4320 can be reduced or even avoided, shaking and pause feeling of the door body 420 in the door opening and closing process can be reduced or even avoided, noise in the door opening and closing process of the door body 420 can be reduced, and user experience can be improved. The direction perpendicular to the movement direction of the sliding shaft 4310 in the sliding slot 4320 is the first direction, and the distance between the first direction and the intersection of the two side slot walls of the sliding slot 4320 is the width of the sliding slot 4320. For example, the width of the sliding groove 4320 in the other area is 6mm, after the transition area 450 is set, the width of the sliding groove 4320 at the preset reference point C1 is 5.8mm, and the width of the sliding groove 4320 in the transition area 450 gradually widens from the preset reference point C1 to two sides.

In order to effectively avoid shaking and jolting of the door body 420 in the door opening and closing process, when the sliding shaft 4310 is positioned in the transition area 450, interference fit is formed between the sliding shaft 4310 and the sliding groove 4320, shaking of the sliding shaft 4310 in the sliding groove 4320 can be avoided, shaking and jolting of the door body 420 in the door opening and closing process is avoided, and noise in the door opening and closing process of the door body 420 is reduced. When the sliding shaft 4310 is located in other groove sections, clearance fit is formed between the sliding shaft 4310 and the sliding groove 4320, so that smooth movement of the sliding shaft 4310 in other sliding grooves 4320 is facilitated, and smoothness of rotation of the door body 420 is improved.

In some embodiments, at least one side groove wall of the chute 4320 of the transition zone 450 has a resilient section 453, the resilient section 453 being configured to provide resilient support to the sliding shaft 4310 located within the transition zone 450 in a radial direction of the sliding shaft 4310. Specifically, the two side groove walls of the chute 4320 are respectively provided with an elastic section 453 at the transition region 450. The sliding shaft 4310 presses the elastic sections 453 on both sides when the sliding shaft 4310 moves along the sliding groove 4320, and the elastic force of the elastic sections 453 on both sides provides effective elastic support to the sliding shaft 4310 located in the transition region 450 in the radial direction of the sliding shaft 4310. The elastic force of the elastic sections 453 of the two side walls can push the sliding shaft 4310 better, so that the door 420 rotates toward the case 410.

The elastic section 453 is an elastic layer attached to the groove wall of the first chute 4321, and the elastic layer may be made of a resilient material, such as a polyoxymethylene material. In other embodiments, the resilient section 453 is formed by a slot wall of the resilient chute 4320. The groove wall of the chute 4320 is made of a resilient material, such as a polyoxymethylene material. Further, the second connection piece 432 is formed using a polyoxymethylene material, such as a polyoxymethylene material or the like.

In some embodiments, the sliding shaft 4310 is located at the predetermined reference point C1 in the transition region 450 when the elastic member 441 contacts the protruding point 4421 of the locking member 442. The elastic section 453 is an elastic layer attached to the groove wall of the first chute 4321. The thickness of the elastic section 453 along the width direction of the sliding chute 4320 is gradually reduced from the preset reference point C1 to two sides, so that the interference provided by the elastic section 453 for the sliding shaft 4310 is gradually reduced from the preset reference point C1 to two sides, the width of the sliding chute 4320 in the transition area 450 is gradually widened from the preset reference point C1 to two sides, the sliding shaft 4310 can be prevented from shaking in the sliding chute 4320, shaking and pause feeling of the door body 420 in the door opening and closing process can be avoided, and noise in the door opening and closing process of the door body 420 can be reduced.

Wherein, at the preset reference point C1, the interference between the sliding shaft 4310 and the sliding groove 4320 is 0-1mm, for example, 0mm, 0.5mm, 1mm, etc. When the interference between the sliding shaft 4310 and the sliding groove 4320 is 0mm, the sliding shaft 4310 contacts the preset reference point C1 of the sliding groove 4320 without interaction force, so as to reduce the shake of the sliding shaft 4310 in the sliding groove 4320. The interference between the sliding shaft 4310 and the sliding groove 4320 can be adjusted according to the elastic coefficient of the elastic layer, the gap between the sliding shaft 4310 and the groove wall of the sliding groove 4320, and the like.

In some embodiments, the sliding chute 4320 comprises a first sliding chute 4321 and a second sliding chute 4322, the sliding shaft 4310 comprises a first sliding shaft 4311 and a second sliding shaft 4312, the transition region 450 comprises a first transition region 451 positioned at the first sliding chute 4321 and a second transition region 452 positioned at the second sliding chute 4322, the first sliding shaft 4311 moves along the first sliding chute 4321 and the second sliding shaft 4312 moves along the second sliding chute 4322 as the door 420 pivots relative to the housing 410, the first sliding shaft 4311 and the second sliding shaft 4312 simultaneously enter and leave the first transition region 451 and the second transition region 452, respectively. Therefore, the acting force of the first transition region 451 on the first sliding shaft 4311 can reduce or even avoid the sliding of the first sliding shaft 4311 between the first sliding shaft 4311 and the groove wall of the first sliding groove 4321 generated by the lateral pushing force, the acting force of the second transition region 452 on the second sliding shaft 4312 can reduce or even avoid the sliding of the second sliding shaft 4312 between the second sliding shaft 4312 and the groove wall of the second sliding groove 4322 generated by the lateral pushing force, and the first sliding shaft 4311 and the second sliding shaft 4312 respectively enter and leave the first transition region 451 and the second transition region 452 at the same time, so that the door body 420 can rotate more smoothly, the shaking and the jerking feeling in the closing process of the door body 420 can be reduced or even avoided, the closing noise of the door body 420 can be reduced, and the user experience can be improved.

The parameters of the second transition region 452 are similar to those of the first transition region 451, and will not be described herein. Of course, in other embodiments, the first transition zone 451 may be provided only within the first chute 4321.

Specifically, the first sliding shaft 4311 and the second sliding shaft 4312 may be disposed on the first connecting member 431, and the corresponding first sliding groove 4321 and second sliding groove 4322 are disposed on the second connecting member 432. Alternatively, the first chute 4321 and the second chute 4322 are disposed on the first connection member 431, and the corresponding first sliding shaft 4311 and second sliding shaft 4312 are disposed on the second connection member 432. Alternatively, one of the first sliding shaft 4311 and the second sliding shaft 4312 is provided on the first connection member 431, the other is provided on the second connection member 432, and the corresponding one of the first sliding groove 4321 and the second sliding groove 4322 is provided on the second connection member 432, and the other is provided on the first connection member 431.

The case device 400 of the present application may employ a single-axis or double-axis hinge assembly 430, and may employ a hinge assembly 430 having three or more axes.

Referring to fig. 18 to 20, fig. 18 is a schematic partial structure of a further embodiment of the case device according to the present application, where the case device is in an open state; FIG. 19 is a partial schematic view of a further embodiment of the case apparatus of the present application, with the case apparatus in a closed position; fig. 20 is a schematic structural view of a second connector according to still another embodiment of the case device of the present application.

Yet another embodiment of the present application provides a case apparatus 500. The housing apparatus 500 includes a housing 510, a door 520, a hinge assembly 530, and a self-locking assembly 540. Wherein, the inside of the case 510 forms an accommodating space having an opening. The door 520 is used to close off or open. The hinge assembly 530 is disposed at a pivot side of the cabinet 510, and the hinge assembly 530 pivotally connects the door 520 and the cabinet 510, i.e., enables a rotational connection between the cabinet 510 and the door 520. The door 520 may be opened or closed with respect to the case 510 by the hinge assembly 530. Hinge assembly 530 includes a first connector 531 and a second connector 532. The first connection piece 531 is disposed at one of the case 510 and the door 520, and the second connection piece 532 is disposed at the other of the door 520 and the case 510. The first connection member 531 is provided with at least a sliding shaft 5310, and the second connection member 532 is provided with at least a sliding groove 5320, and the sliding shaft 5310 moves along the sliding groove 5320 during the pivoting of the door 520 with respect to the housing 510. Specifically, the first connector 531 is disposed on the door 520, and the second connector 532 is disposed on the case 510; or the first connection piece 531 is disposed on the door 520, and the second connection piece 532 is disposed on the case 510. The self-locking assembly 540 includes an elastic member 541 and a locking member 542, and the elastic member 541 and the locking member 542 are separated from each other and transition into contact with each other when the door 520 is rotated from the open state to the closed state with respect to the case 510. The locking member 542 has a protruding point 5421 and a locking position 5422, wherein the protruding point 5421 is a position point on the locking member 542 where the elastic deformation of the elastic member 541 is maximum, and when the door 520 rotates from the open state to the closed state relative to the case 510, the elastic member 541 and the locking member 542 contact each other, and enter the locking position 5422 after the elastic member 541 passes over the protruding point 5421 of the locking member 542, so as to lock the door 520 in the closed state.

Wherein, before the elastic member 541 makes contact with the locking member 542, the sliding shaft 5310 moves in the first section D1 of the sliding slot 5320, before the elastic member 541 makes contact with the locking member 542 and reaches the most protruding point 5421, the sliding shaft 5310 moves in the second section D2 of the sliding slot 5320, and during the process that the elastic member 541 reaches the locking position 5422 from the most protruding point 5421, the sliding shaft 5310 moves in the third section D3 of the sliding slot 5320, wherein the width of at least part of the section D3 of the sliding slot 5320 near the locking position 5422 is larger than the width of the first section D1 of the sliding slot 5320. When the door body 520 rotates to a close state, that is, the sliding shaft 5310 is located in the third section D3 of the sliding groove 5320, since the width of at least part of the third section D3 corresponding to the locking position 5422 of the elastic element 541 is greater than the width of the first section D1 of the sliding groove 5320, the fit clearance between the sliding shaft 5310 and the sliding groove 5320 is greater, the friction force between the sliding shaft 5310 and the sliding groove 5320 is smaller, the resilience force of the elastic element 541 is prevented from being affected, the smoothness of closing the door at a small angle is effectively improved, and the quality of the door device is improved.

Specifically, in the process that the door 520 rotates from the open state to the closed state relative to the case 510, the user pushes the door 520, after the door 520 rotates to a certain angle relative to the case 510, the clamping member 542 contacts and presses the elastic member 541, after the elastic member 541 passes over the protruding point 5421 of the clamping member 542, the resilience force generated by the deformation of the elastic member 541 can be converted into a self-locking force that pushes the door 520 to continue to rotate toward the case 510, the door 520 is gradually rotated toward the case 510 by the resilience force, and the door 520 is in the closed state after the door 520 continues to rotate toward the case 510 and is attracted by the magnetic strip of the door 520. However, after the elastic member 541 passes over the protruding point 5421 of the locking member 542, the door 520 does not have an external force, and the door 520 needs to be automatically closed by the resilience force of the elastic member 541 when the door is closed, and at this time, the sliding shaft 5310 is located in the third section D3 of the sliding slot 5320, if the door 520 in this time zone cannot be effectively and actually closed, a gap exists between the door seal and the door 520, and since the door closing angle is already smaller, the door opening alarm function designed on the refrigerator has already determined that the door 520 is closed, and does not play a role of prompting and alarming any more, and the door 520 leaks cold and is severely condensed and frozen during long-term use of the refrigerator. In this application, when the sliding shaft 5310 is located the third section D3 of the sliding groove 5320, because the width of at least part of the third section D3 corresponding to the locking position 5422 of the elastic element 541 is greater than the width of the first section D1 of the sliding groove 5320, the fit clearance between the sliding shaft 5310 and the sliding groove 5320 is greater, the friction force between the sliding shaft 5310 and the sliding groove 5320 is smaller, the resilience force of the elastic element 541 is prevented from being affected, the smoothness of closing the door at a small angle is effectively improved, the quality of the door device is improved, and a series of problems caused by the fact that the door body 520 is not closed are avoided. The box body device 500 of this application, the user need not to promote the door body 520 completely to with box 510 closure, but with door body 520 close to the back of certain angle, door body 520 can realize self-closing to guaranteed the closeness of closing of door body 520 and box 510, improved user's convenience of use.

In some embodiments, the width of the third section D3 gradually widens in a direction away from the second section D2, so that the fit gap between the sliding shaft 5310 and the third section D3 of the sliding slot 5320 gradually increases as the elastic member 541 approaches the locking position 5422 from the most protruding point 5421. On the one hand, the friction force between the sliding shaft 5310 and the sliding groove 5320 can be gradually reduced, the influence on the resilience force of the elastic element 541 is avoided, the smoothness of closing the door at a small angle is effectively improved, and the door 520 is ensured to be closed on the box 510; on the other hand, the width of the third section D3 gradually widens along the direction away from the second section D2, so that when the elastic member 541 passes over the most protruding point 5421, the shake of the sliding shaft 5310 in the sliding groove 5320 is reduced or even avoided, the shake and the frustration of the door 520 in the door opening and closing process are reduced or even avoided, the noise of the door 520 in the door opening and closing process is reduced, and the user experience is improved.

In some embodiments, the third interval D3 includes a first subinterval and a second subinterval. During the process that the elastic member 541 reaches the locking position 5422 from the protruding point 5421, the sliding shaft 5310 passes through the first sub-section and the second sub-section in sequence. The first subinterval is close to the second interval D2, and the second subinterval is far away from the second interval D2. When the sliding shaft 5310 is located in the first subinterval, the elastic shape just passes over the bump 5421 of the clamping member 542, so as to reduce or even avoid the shaking of the sliding shaft 5310 in the sliding groove 5320, and the width of the first subinterval is smaller than the width of the first interval D1 of the sliding groove 5320, so that shaking and frustration of the door 520 in the door opening and closing process are reduced or even avoided, and noise in the door opening and closing process of the door 520 is reduced. When the sliding shaft 5310 is located in the second sub-section, the elastic member 541 is close to the locking position 5422 of the locking member 542, so that in order to reduce the friction force between the sliding shaft 5310 and the sliding slot 5320, the width of the second sub-section is greater than the width of the first section D1 of the sliding slot 5320, so that the friction force between the sliding shaft 5310 and the sliding slot 5320 can be effectively reduced, the resilience force of the elastic member 541 is prevented from being affected, the smoothness of closing the door at a small angle is effectively improved, and the door 520 is ensured to be closed on the box 510.

In some embodiments, the length of the third section D3 is greater than the length of the second section D2, such that the first and second sub-sections of the third section D3 are of sufficient length. When the elastic member 541 just passes over the bump 5421 of the clamping member 542, the first subinterval may be set to a certain length to adapt to the release of the resilience force of the elastic member 541, so as to effectively reduce or even avoid the shake of the sliding shaft 5310 in the sliding groove 5320, reduce or even avoid the shake and the jerk of the door 520 during the door opening and closing process, and reduce the noise of the door 520 during the door opening and closing process; when the elastic member 541 approaches the locking position 5422 of the locking member 542, the second sub-section can be provided with a certain length, so as to increase the sliding gap between the sliding shaft 5310 and the sliding slot 5320, effectively reduce the friction between the sliding shaft 5310 and the sliding slot 5320, effectively improve the smoothness of closing the door at a small angle, and ensure that the door 520 is closed on the box 510. Specifically, the length of the third section D3 is 8mm, and the length of the second section D2 is 4.5mm.

When the elastic member 541 and the clamping member 542 are separated from each other and transition into contact with each other, and the elastic member 541 approaches the most protruding point 5421 of the clamping member 542, the elastic member 541 has a larger elastic force, so as to reduce or even avoid the shake of the sliding shaft 5310 in the sliding groove 5320, and the width of at least a portion of the second section D2 of the sliding groove 5320, which is near the most protruding point 5421, is smaller than the width of the first section D1 of the sliding groove 5320, thereby reducing or even avoiding the shake of the sliding shaft 5310 in the sliding groove 5320, reducing or even avoiding the shake and the jerky feeling of the door 520 during the door opening and closing process, reducing the noise during the door opening and closing process of the door 520, and improving the user experience.

When the sliding shaft 5310 is located in the first section D1 of the sliding groove 5320 and the sliding shaft 5310 is located in at least a part of the third section D3 of the sliding groove 5320, which is close to the locking position 5422, the elastic member 541 does not contact with the locking member 542 or the interaction force between the elastic member 541 and the locking member 542 is small, the sliding shaft 5310 moves in the sliding groove 5320 and is not easy to shake, in order to improve the smoothness of the sliding shaft 5310 moving in the sliding groove 5320, the width of the first section D1 of the sliding groove 5320 and the width of the third section D3 of the sliding groove 5320, which is close to the locking position 5422, are set to enable the sliding groove 5320 and the sliding shaft 5310 to be in clearance fit along the radial direction of the sliding shaft 5310, so that the friction force between the sliding shaft 5310 and the sliding groove 5320 can be reduced, the smoothness of the sliding shaft 5310 moving in the sliding groove 5320 can be improved, the door 520 rotates smoothly relative to the box 510, and the quality of the box device 500 can be improved.

When the sliding shaft 5310 is located in at least a portion of the second section D2 of the sliding groove 5320, which is close to the most protruding point 5421, the resilience force of the elastic element 541 is larger, so as to reduce or even avoid shaking of the sliding shaft 5310 in the sliding groove 5320, and the width of at least a portion of the second section D2 of the sliding groove 5320, which is close to the most protruding point 5421, is set to enable the sliding groove 5320 and the sliding shaft 5310 to be in interference fit along the radial direction of the sliding shaft 5310, so that shaking of the sliding shaft 5310 in the sliding groove 5320 is reduced or even avoided, shaking and frustration of the door 520 in the door opening and closing process is reduced, noise in the door opening and closing process is reduced, and user experience is improved.

When the sliding shaft 5310 is located in at least a portion of the third section D3 of the sliding groove 5320, which is close to the most protruding point 5421, the resilience force of the elastic element 541 is larger, so as to reduce or even avoid shaking of the sliding shaft 5310 in the sliding groove 5320, and the width of at least a portion of the third section D3 of the sliding groove 5320, which is close to the most protruding point 5421, is set to enable the sliding groove 5320 and the sliding shaft 5310 to be in interference fit along the radial direction of the sliding shaft 5310, so that shaking of the sliding shaft 5310 in the sliding groove 5320 is reduced or even avoided, shaking and frustration of the door 520 in the door opening and closing process is reduced, noise in the door opening and closing process is reduced, and user experience is improved.

In some embodiments, the portion of the second section D2 of the runner 5320 that is in a radial interference fit with the slide shaft 5310 has a resilient section for providing resilient support to the slide shaft 5310 located within the section in the radial direction of the slide shaft 5310. Specifically, the two side groove walls of the chute 5320 are respectively provided with an elastic section at the interval. The elastic section is an elastic layer attached to the wall of the chute 5320, and the elastic layer may be made of a resilient material, such as a polyoxymethylene material. In other embodiments, the resilient segment is formed by a groove wall of the resilient chute 5320. The walls of the chute 5320 are made of a resilient material, such as a polyoxymethylene material. Further, the second connection piece 532 is formed using a polyoxymethylene material, such as a polyoxymethylene material or the like.

Likewise, the portion of the third section D3 of the slide groove 5320 that is in interference fit with the radial direction of the slide shaft 5310 has an elastic section for providing elastic support to the slide shaft 5310 located within the section in the radial direction of the slide shaft 5310. Specifically, the two side groove walls of the chute 5320 are respectively provided with an elastic section at the interval. The elastic section is an elastic layer attached to the wall of the chute 5320, and the elastic layer may be made of a resilient material, such as a polyoxymethylene material. In other embodiments, the resilient segment is formed by a groove wall of the resilient chute 5320. The walls of the chute 5320 are made of a resilient material, such as a polyoxymethylene material. Further, the second connection piece 532 is formed using a polyoxymethylene material, such as a polyoxymethylene material or the like.

In addition, the width of the second section D2 gradually widens in a direction away from the third section D3. When the elastic member 541 and the locking member 542 are separated from each other and transition into contact with each other, and the elastic member 541 approaches the most protruding point 5421 of the locking member 542, the resilience of the elastic member 541 is gradually greater. In order to reduce or even avoid the sliding shaft 5310 from shaking in the sliding groove 5320, the width of the second section D2 gradually widens along the direction away from the third section D3, that is, the fit gap between the sliding shaft 5310 and the second section D2 of the sliding groove 5320 gradually decreases in the direction close to the third section D3, so that shaking of the sliding shaft 5310 in the sliding groove 5320 can be reduced or even avoided, shaking and frustration of the door body 520 in the door opening and closing process can be reduced or even avoided, noise in the door opening and closing process of the door body 520 can be reduced, and user experience can be improved.

Further, when the sliding shaft 5310 is located in the first section D1 of the sliding groove 5320, there is a first radial gap between the sliding shaft 5310 and the sliding groove 5320. When the sliding shaft 5310 is located at least in a portion of the third section D3 of the sliding groove 5320, which is close to the locking position 5422, there is a second radial gap between the sliding shaft 5310 and the sliding groove 5320. The difference between the second radial gap and the first radial gap is not less than 0.15mm, e.g., 0.15mm, 0.3mm, 0.45mm, etc. By setting the second radial gap to have a sufficient difference with the first radial gap, when the sliding shaft 5310 is located in at least a portion of the third section D3 of the sliding groove 5320, which is close to the locking position 5422, the fit gap between the sliding shaft 5310 and the sliding groove 5320 is sufficiently increased, the friction force between the sliding shaft 5310 and the sliding groove 5320 is reduced, the door closing smoothness is effectively improved, and the quality of the door device is improved.

Specifically, the diameter of the slide shaft 5310 is 5.95mm. When the sliding shaft 5310 is located in the first section D1 of the sliding groove 5320, the width of the sliding groove 5320 is 6.1mm, the force required for closing the door is about 6N, and the first radial gap is 0.15mm. When the elastic member 541 contacts with the protruding point 5421 of the locking member 542, the sliding shaft 5310 is located at the joint between the second section D2 and the third section D3, where the width of the sliding groove 5320 is minimum, and is 5.8mm, and the force required for closing the door is about 12N. When the elastic member 541 passes over the protruding point 5421 of the locking member 542, no external force is applied, the door 520 is automatically closed by virtue of the resilience force of the elastic member 541, and when the sliding shaft 5310 moves to at least a portion of the third section D3 of the sliding groove 5320, which is close to the locking position 5422, the width of the sliding groove 5320 is 6.25mm, the second radial gap is 0.3mm, and at this time, the difference between the second radial gap and the first radial gap is 0.15mm.

In some embodiments, the slide slots 5320 include a first slide slot 5321 and a second slide slot 5322, the slide shaft 5310 includes a first slide shaft 5311 and a second slide shaft 5312, the first slide shaft 5311 moves along the first slide slot 5321 and the second slide shaft 5312 moves along the second slide slot 5322 as the door 520 pivots relative to the housing 510. The first chute 5321 includes the first, second and third sections D1, D2 and D3 described above. If the first sliding shaft 5311 moves in the third section D3 of the first sliding groove 5321, the second sliding shaft 5312 is already positioned and rotated in the second sliding groove 5322, the width of the groove segment of the second sliding groove 5322 can be set to be larger than the widths of other groove segments when the elastic member 541 approaches the locking position 5422, so as to facilitate the second sliding shaft 5312 to rotate in the second sliding groove 5322. If the first sliding shaft 5311 moves along the third section D3 of the first sliding groove 5321, the second sliding shaft 5312 moves along the second sliding groove 5322, and the second sliding groove 5322 may also include the first section D1, the second section D2, and the third section D3. The fit clearance between the sliding shaft 5310 and the sliding groove 5320 is larger, the friction force between the sliding shaft 5310 and the sliding groove 5320 is smaller, the resilience force of the elastic piece 541 is prevented from being influenced, the smoothness of closing the door at a small angle is effectively improved, and the quality of the door device is improved.

Specifically, the first sliding shaft 5311 and the second sliding shaft 5312 may be disposed on the first connection piece 531, and the corresponding first sliding groove 5321 and the second sliding groove 5322 are disposed on the second connection piece 532. Alternatively, the first and second sliding grooves 5321 and 5322 are provided on the first link 531, and the corresponding first and second sliding shafts 5311 and 5312 are provided on the second link 532. Alternatively, one of the first sliding shaft 5311 and the second sliding shaft 5312 is provided on the first connecting member 531, the other is provided on the second connecting member 532, and the corresponding one of the first sliding groove 5321 and the second sliding groove 5322 is provided on the second connecting member 532, and the other is provided on the first connecting member 531.

The case device 500 of the present application may employ a single-axis or double-axis hinge assembly 530, and may employ a hinge assembly 530 having three or more axes.

Yet another embodiment of the present application provides a refrigeration appliance. The refrigeration appliance includes the tank apparatus of any of the embodiments described above. Namely, the door body, the box body and the hinge assembly between the door body and the box body are adopted. The refrigeration equipment can be a refrigerator, a freezer, a wine cabinet, a fresh-keeping cabinet and the like.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating the number of features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims

1. A tank apparatus, comprising:

the box body is internally provided with an accommodating space, wherein the accommodating space is provided with an opening;

the door body is used for sealing the opening;

the hinge assembly is arranged on the pivoting side of the box body and is pivoted with the box body and the door body;

the hinge assembly comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on one of the box body and the door body, and the second connecting piece is arranged on the other one; the first connecting piece is at least provided with a sliding shaft, the second connecting piece is at least provided with a sliding groove, and the sliding shaft moves along the sliding groove when the door body pivots relative to the box body;

the self-locking assembly comprises an elastic piece and a clamping piece, wherein the clamping piece is provided with a most protruding point and a locking position, when the door body rotates from an open state to a closed state relative to the box body, the elastic piece and the clamping piece are separated from each other and are transited to be contacted with each other, after the elastic piece passes through the most protruding point of the clamping piece, the elastic piece is enabled to enter the locking position by the resilience force of the elastic piece, the door body is further locked in the closed state, and the most protruding point is a position point on the clamping piece, which enables the resilience force of the elastic piece to be maximum;

The sliding shaft moves in a first section of the sliding groove before the elastic piece is in contact with the clamping piece, moves in a second section of the sliding groove before the elastic piece is in contact with the clamping piece and reaches the most protruding point, and moves in a third section of the sliding groove in the process that the elastic piece reaches the locking position from the most protruding point, wherein the width of at least part of the section of the third section of the sliding groove, which is close to the locking position, is larger than the width of the first section of the sliding groove.

2. The tank device according to claim 1, wherein the width of the third section gradually widens in a direction away from the second section.

3. The case device according to claim 1, wherein the third section includes a first sub-section and a second sub-section, the sliding shaft passes through the first sub-section and the second sub-section in succession in the process that the elastic member reaches the locking position from the most protruding point, the width of the first sub-section is smaller than the width of the first section of the chute, and the width of the second sub-section is larger than the width of the first section of the chute.

4. The case device according to claim 1, wherein a width of at least a portion of a second section of the chute near the most protruding point is smaller than a width of a first section of the chute.

5. The case apparatus according to claim 4, wherein a width of a first section of the slide groove and a width of at least a portion of a third section of the slide groove near the lock position are set such that the slide groove and the slide shaft are clearance-fitted in a radial direction of the slide shaft, and a width of at least a portion of a second section of the slide groove near the most protruding point is set such that the slide groove and the slide shaft are interference-fitted in the radial direction of the slide shaft.

6. A housing arrangement according to claim 3, wherein when the slide shaft is located in a first section of the chute, there is a first radial gap between the slide shaft and the chute, and when the slide shaft is located in at least part of a third section of the chute, which is adjacent to the locking position, there is a second radial gap between the slide shaft and the chute, the second radial gap having a difference from the first radial gap of not less than 0.15mm.

7. The case apparatus according to claim 5, wherein a width of at least a portion of a third section of the slide groove near the most protruding point is set such that the slide groove and the slide shaft are interference-fitted in a radial direction of the slide shaft.

8. The cabinet apparatus according to claim 4, wherein the width of the second section is gradually widened in a direction away from the third section.

9. A tank arrangement according to claim 3, wherein the length of the third section is greater than the length of the second section.

10. A refrigeration apparatus comprising the tank arrangement of any one of claims 1-9.