Door opening and closing mechanism, storage equipment and electrical equipment

Abstract

The utility model relates to a door body opening and closing mechanism, storage equipment and electrical equipment, the door body opening and closing mechanism comprises a limiting assembly, a door body assembly and a telescopic assembly, a sliding groove is formed in the limiting assembly, and a plurality of protruding structures are arranged in the sliding groove and used for forming a plurality of hovering positions in the length direction of the sliding groove; the door body assembly can rotate relative to the limiting assembly; the telescopic assembly is arranged on the door body assembly, and the end, away from the door body assembly, of the telescopic assembly extends into the sliding groove and is used for being matched with the multiple protruding structures so that the door body assembly can stay at any hovering position. According to the door body opening and closing mechanism, the protruding structures in the sliding grooves are matched with the telescopic assemblies on the door body assembly, the protruding structures can stop the telescopic assemblies, and therefore the door body assembly can stay at the corresponding hovering positions; the door body assembly stays at the preset opening and closing angle, the opening and closing angle is kept, a user does not need to hold the door manually to fix the position of the door body assembly, and the convenience of taking and placing articles by the user can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door body installation, and in particular to a door body opening and closing mechanism, a storage equipment and an electrical equipment. BACKGROUND

[0002] In commonly used storage equipment (such as a storage cabinet) and electrical equipment (such as a refrigerator), a door is often used to realize the opening and closing of the storage space inside the equipment. When the door body is hinged to the main body of the equipment, the opening angle of the door body is easily changed under the influence of external factors or its own gravity, and cannot be maintained at a specific opening and closing angle, resulting in that when a user uses the above-mentioned equipment, he needs to hold the door with one hand and take the goods with the other hand to realize the fixation of the position of the door body during the taking process.

[0003] When the number of goods to be taken or placed is large or the volume is large, the user must take or place the goods inside the cabinet or box body by using both hands, and cannot manually fix the door body. The door body is easily swung, the opening and closing degree of the door body is not controlled, and the convenience of the user in taking or placing the goods is affected, resulting in a poor user experience. INVENTION CONTENTS

[0004] The present application provides a door body opening and closing mechanism, a storage equipment and an electrical equipment to solve the technical problem that the door body cannot be maintained at a specific opening and closing angle after being opened in the prior art, which affects the convenience of the user in taking or placing goods.

[0005] In a first aspect, the present application provides a door body opening and closing mechanism, comprising:

[0006] A limiting component, a sliding groove is arranged on the limiting component, a plurality of protruding structures are arranged in the sliding groove, and the plurality of protruding structures are used to form a plurality of hovering positions in the length direction of the sliding groove;

[0007] A door body component, the door body component is rotatable relative to the limiting component;

[0008] A telescopic component, the telescopic component is arranged on the door body component, one end of the telescopic component away from the door body component is inserted into the sliding groove, and the telescopic component is used to cooperate with the plurality of protruding structures to realize the stopping of the door body component at any one of the hovering positions.

[0009] Optionally, the sliding groove comprises a first sliding section and a second sliding section which are communicated;

[0010] The first sliding section has a first inclined surface structure, and the telescopic component cooperates with the first inclined surface structure to realize the automatic closing of the door body component;

[0011] The plurality of protruding structures are arranged on the second sliding section, and are used to form a plurality of hovering positions in the length direction of the second sliding section.

[0012] Optionally, the length of the first sliding section is less than the length of the second sliding section.

[0013] Optionally, the second sliding section has a second inclined surface structure, and the plurality of protruding structures are arranged on the second inclined surface structure.

[0014] Optionally, the end of the sliding groove is provided with a buffer.

[0015] Optionally, the surface of the protruding structure has a guide curved surface.

[0016] Optionally, the telescopic assembly comprises an elastic member and a movable member, the elastic member is arranged between the door body assembly and the movable member, and the elastic member always has a tendency to move the movable member towards the sliding groove.

[0017] Optionally, the door body assembly is provided with a mounting seat, and the two ends of the elastic member are respectively abutted between the mounting seat and the movable member.

[0018] Optionally, the mounting seat comprises a positioning column, the elastic member is sleeved outside the positioning column, the movable member has an inner cavity for accommodating the elastic member, and the end of the elastic member away from the mounting seat is abutted inside the inner cavity.

[0019] Optionally, the door body opening and closing mechanism further comprises a hinged assembly, the hinged assembly is connected with the door body assembly, and the door body assembly can rotate relative to the limiting assembly.

[0020] In a second aspect, the application provides a storage device comprising the door body opening and closing mechanism provided in the first aspect of the application.

[0021] In a third aspect, the application provides an electrical appliance comprising the door body opening and closing mechanism provided in the first aspect of the application, and further comprising a cabinet, the limiting assembly and the door body assembly are arranged on the cabinet to realize the opening and closing of the cabinet.

[0022] Optionally, the plurality of protruding structures are located on the side of the sliding groove away from the cabinet.

[0023] Optionally, the opening of the cabinet is provided with a first magnetic sealing member, and the door body assembly has a second magnetic sealing member arranged correspondingly with the first magnetic sealing member.

[0024] The above technical solutions provided in the embodiments of the application have the following advantages compared with the prior art:

[0025] The door opening and closing mechanism provided by the embodiment of the present application has a limiting assembly matched with the door assembly, the door assembly can rotate relative to the limiting assembly during opening and closing, the limiting assembly is provided with a sliding groove, the sliding groove is internally provided with a plurality of protruding structures for forming a plurality of hovering positions in the length direction of the sliding groove. The telescopic assembly is arranged on the door assembly and can rotate and change position synchronously with the door assembly; when the door assembly rotates relative to the limiting assembly, the telescopic assembly slides along the sliding groove; since the telescopic assembly has telescopic performance, when the telescopic assembly is elongated, the protruding structures can block the telescopic assembly, so that the two sides of the telescopic assembly are limited by the adjacent two protruding structures, so that the door assembly can be stopped at the hovering position corresponding to the sliding groove segment; when the telescopic assembly is contracted, the telescopic assembly can move in the sliding groove by passing the protruding structures, so as to move the telescopic assembly and the door assembly from one hovering position to another hovering position or from one hovering position to the completely closed state of the door assembly. Through the cooperation of the protruding structures in the sliding groove and the telescopic assembly on the door assembly, the telescopic assembly is blocked by the protruding structures, so that the door assembly is stopped at the preset opening and closing angle, the opening and closing angle of the door assembly can be maintained, the user does not need to hold the door to fix the position of the door assembly, and the convenience of the user in taking and placing objects is improved.

[0026] The storage device and the electrical appliance provided by the embodiment of the present application have the door opening and closing mechanism described above, the door assembly can be stopped at any one of the hovering positions through the door opening and closing mechanism, the user can take and place objects in the storage device or the electrical appliance, and therefore, the storage device and the electrical appliance naturally have the technical effects of the door opening and closing mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.

[0029] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, and these exemplary illustrations do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, the drawings do not constitute a proportional limitation.

[0030] Figure 1 The structural schematic diagram of the limiting assembly provided by the embodiment of the present application;

[0031] Figure 2 A sectional view along line A-A of the embodiment provided by the present application; Figure 1 A sectional view along line A-A of the embodiment provided by the present application;

[0032] Figure 3 A partial exploded view of the door opening and closing mechanism provided by the embodiment of the present application;

[0033] Figure 4 A partial structural schematic view of the door opening and closing mechanism provided by the embodiment of the present application;

[0034] Figure 5 A partial sectional view of the door opening and closing mechanism provided by the embodiment of the present application;

[0035] Figure 6 A sectional view along line B-B of the embodiment provided by the present application; Figure 5 A sectional view along line B-B of the embodiment provided by the present application;

[0036] Figure 7 A cooperation schematic view of the first sliding section and the telescopic assembly provided by the embodiment of the present application;

[0037] Figure 8 A structural schematic view of the electrical appliance provided by the embodiment of the present application;

[0038] Figure 9 A side view of the electrical appliance provided by the embodiment of the present application;

[0039] Figure 10 A sectional view along line C-C of the embodiment provided by the present application; Figure 9 A sectional view along line C-C of the embodiment provided by the present application;

[0040] Explanation of reference signs:

[0041] 1, limiting assembly; 11, sliding groove; 111, first sliding section; 1111, first inclined surface structure; 1112, first guide surface; 112, second sliding section; 1121, second inclined surface structure; 1122, second guide surface; 113, boundary part; 12, protruding structure; 13, buffer; 14, limiting block; 15, connecting part;

[0042] 2, door assembly; 21, mounting seat; 211, positioning column; 212, abutting part; 22, door panel; 23, hinged hole;

[0043] 3, telescopic assembly; 31, elastic member; 32, movable member; 321, inner cavity; 322, abutting end;

[0044] 4, hinged assembly; 41, hinged shaft; 42, hinged seat;

[0045] 5, box body. DETAILED DESCRIPTION

[0046] In order to make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0047] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of particular examples in the following description will be described with reference to specific arrangements. It will be clear, however, that this is simply for the purposes of providing a thorough and complete disclosure and describing all the various aspects of the application, and does not limit the present application in any way. In addition, the reference numerals in different examples can be repeated. Such repetition is for the purpose of simplicity and clarity and does not indicate a relationship between the described various embodiments and / or settings.

[0048] For the purpose of description, spatial relative terms can be used in the description to describe the relative position relationship or movement of one element or feature with respect to another element or feature as shown in the drawings, such as "internal", "external", "inboard", "outboard", "under", "below", "on", "above", "front", "back", and the like. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the description are interpreted accordingly.

[0049] In order to solve the technical problem that the door body cannot be kept at a specific opening angle after being opened in the prior art, affecting the convenience of users in taking and placing articles, the present application provides a door opening and closing mechanism, a storage equipment, and an electrical equipment. The door opening and closing mechanism can cooperate with the telescopic assembly 3 on the door body assembly 2 through the protruding structure 12 in the sliding groove 11, block the telescopic assembly 3 through the protruding structure 12, and thus make the door body assembly 2 stay at a preset opening angle, so as to realize the keeping of the opening angle of the door body assembly 2, without the need for the user to manually hold the door to fix the position of the door body assembly 2, which is beneficial to improving the convenience of the user in taking and placing articles.

[0050] Please refer to Figures 1 to 10The first aspect of the embodiments of the present application provides a door opening and closing mechanism, which comprises a limiting component 1, a door component 2 and a telescopic component 3, as shown in Figure 3 .

[0051] The limiting component 1 is provided with a sliding groove 11, and the inside of the sliding groove 11 is provided with a plurality of protruding structures 12, which are used to form a plurality of hovering positions in the length direction of the sliding groove 11. At least one hovering position can be formed between any two adjacent protruding structures 12, and each hovering position corresponds to an opening and closing angle of a door, as shown in Figure 1 and Figure 2 . The door component 2 can rotate relative to the limiting component 1 to realize the opening and closing of a storage device or an electrical device, as shown in Figure 8 .

[0052] The telescopic component 3 is arranged on the door component 2 and can rotate and change position synchronously with the door component 2. One end of the telescopic component 3 away from the door component 2 extends into the sliding groove 11 and abuts against the inner wall of the sliding groove 11, which is used to cooperate with the plurality of protruding structures 12 to realize the stopping of the door component 2 at any hovering position.

[0053] When the door component 2 rotates relative to the limiting component 1, the telescopic component 3 slides along the sliding groove 11. Since the telescopic component 3 has telescopic performance, when the telescopic component 3 is elongated, the protruding structure 12 can block the telescopic component 3, so that the two sides of the telescopic component 3 can be limited by the two adjacent protruding structures 12, thereby making the door component 2 stop at the corresponding hovering position of the sliding groove 11, as shown in Figure 4 , Figure 5 and Figure 6 . When the telescopic component 3 is contracted, it can pass through the protruding structure 12, so that the telescopic component 3 can move in the sliding groove 11, so as to move the telescopic component 3 and the door component 2 from one hovering position to another hovering position or from one hovering position to a completely closed state of the door component 2.

[0054] It should be noted that the sliding groove 11 is arranged in the limiting block 14 of the limiting component 1, as shown in Figure 1 , Figure 2 and Figure 3 . The shape and size of the limiting block 14 can be set according to needs, which are not limited here.

[0055] In some embodiments of the present application, please refer to Figure 1 , Figure 2 and Figure 7The slide 11 includes a first sliding section 111 and a second sliding section 112 that are connected. The telescopic component 3 can move from the first sliding section 111 to the second sliding section 112, and vice versa, facilitating the opening and closing of the door assembly 2. Specifically, when the door assembly 2 is opened, the telescopic component 3 moves along... Figure 1 The door opening direction shown moves from the first sliding section 111 to the second sliding section 112; when the door assembly 2 is closed, the telescopic assembly 3 moves from the second sliding section 112 of the slide groove 11 to the first sliding section 111.

[0056] The first sliding section 111 has a first inclined surface structure 1111, and the telescopic component 3 cooperates with the first inclined surface structure 1111 to achieve automatic closing of the door component 2. Figure 2 and Figure 7 For example, the telescopic component 3 moves from right to left along the first inclined surface 1111 in the closing direction. Since the first inclined surface 1111 is tilted with the left side higher than the right, it applies a horizontal force to the left to the end of the telescopic component 3 that abuts against it. This pushes the telescopic component 3 and the door assembly 2, causing them to move in the closing direction, thus automatically closing the door assembly 2. During the closing process, the telescopic component 3 is continuously extended to maintain contact with the first inclined surface 1111.

[0057] It should be noted that the central angle corresponding to the arc length of the first sliding segment 111 is the maximum automatic closing angle of the door assembly 2, which can be set according to the user's usage habits. If the user does not apply enough force when closing the door, the door assembly 2 may not be fully closed. This application achieves automatic and complete closing of the door assembly 2 within a certain angle (i.e., the opening and closing angle corresponding to the first sliding segment 111) through the abutting cooperation between the first inclined structure 1111 and the telescopic component 3.

[0058] Multiple protrusions 12 are provided on the second sliding section 112 to form multiple hovering positions in the length direction of the second sliding section 112, so that the multiple hovering positions are distributed in the rear half of the slide groove 11, so that the door assembly 2 has a larger opening and closing angle when it is in the hovering state, which is conducive to the picking and placing of items.

[0059] In some embodiments of this application, please refer to Figure 1 and Figure 2 The length of the first sliding segment 111 is less than the length of the second sliding segment 112, which allows the automatic closing range of the door assembly 2 to be smaller than the hovering range. For example, the maximum automatic closing angle of the door assembly 2 is below 45°, which can prevent the door assembly 2 from automatically closing during the user's loading and unloading of items due to the excessive length of the first sliding segment 111.

[0060] In some embodiments of the present application, please refer to Figure 1 and Figure 2 , the length of the arc corresponding to the first sliding groove 11 segment is 1 / 2 of the length of the arc corresponding to the second sliding groove 11 segment, which can make the first 1 / 3 of the opening and closing range of the door body assembly 2 in the opening process be the automatic closing range, and the last 2 / 3 of the opening and closing range be the hovering range of the door body assembly 2.

[0061] In the above embodiments, the abutting surface of the second sliding groove 11 segment and the telescopic assembly 3 can be a plane or an inclined plane, both of which can achieve the purpose of the present application.

[0062] In some preferred embodiments of the present application, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , the second sliding segment 112 has a second inclined surface structure 1121, and a plurality of protruding structures 12 are arranged on the second inclined surface structure 1121. When the telescopic assembly 3 moves on the second inclined surface structure 1121, the abutting end 322 of the telescopic assembly 3 can be limited on both sides through the second inclined surface structure 1121 and the protruding structure 12, so that Figure 6 for example, the second inclined surface structure 1121 exerts a horizontal component force to the right on the left side of the telescopic assembly 3, and the protruding structure 12 on the right side of the telescopic assembly 3 exerts a horizontal component force to the left on the telescopic assembly 3, which can achieve reliable fixation of the telescopic assembly 3, and can prevent the telescopic assembly 3 from shaking between adjacent two protruding structures 12 in the absence of external force pushing the door body assembly 2.

[0063] In some embodiments of the present application, the slopes of the first inclined surface structure 1111 and the second inclined surface structure 1121 can be set as needed, and the slopes of the two can be the same or different, which can be set according to the required opening and closing speed, opening and closing difficulty, etc. of the door body assembly 2.

[0064] Specifically, the steeper the slope of the first inclined surface structure 1111 is, the faster the speed of the door body assembly 2 corresponding to the first sliding segment 111 in automatic closing will be, but the opening resistance of the door body assembly 2 on the first sliding segment 111 will also be greater. The steeper the slope of the second inclined surface structure 1121 is, the faster the opening speed of the door body assembly 2 corresponding to the second sliding segment 112 will be, but it will result in greater closing resistance of the second sliding segment 112.

[0065] In some embodiments of the present application, please refer to Figure 1 and Figure 2The two sides of the first inclined surface structure 1111 are provided with first guide surfaces 1112, and the two sides of the second inclined surface are provided with second guide surfaces 1122, which can limit the two sides of the telescopic assembly 3, so that the telescopic assembly 3 always slides along the arc length direction of the sliding groove 11. The first guide surface 1112 and the second guide surface 1122 are connected into an integral whole to form an arc surface matched with the rotation track of the telescopic assembly 3, that is, the side surface of the sliding groove 11.

[0066] In some embodiments of the present application, referring to Figure 1 and Figure 2 , a demarcation part 113 is arranged between the first sliding section 111 and the second sliding section 112, and the demarcation part 113 has a connecting curved surface. The first inclined surface structure 1111 and the second inclined surface structure 1121 can be transitionally connected through the demarcation part 113, which can reduce the movement resistance of the telescopic assembly 3 when moving from the first sliding section 111 to the second sliding section 112 (or moving from the second sliding section 112 to the first sliding section 111).

[0067] In some embodiments of the present application, referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 , the end of the sliding groove 11 is provided with a buffer 13, which can reduce the impact of the telescopic assembly 3 on the end of the sliding groove 11. When the first inclined surface structure 1111 and the second inclined surface structure 1121 push the telescopic assembly 3 to move towards the two ends of the sliding groove 11, the buffer 13 can buffer the inertial force of the telescopic assembly 3, so as to avoid the telescopic assembly 3 impacting the end of the sliding groove 11 and causing damage to the sliding groove 11.

[0068] It should be noted that the buffer 13 can be made of sponge, rubber, silica gel or the like, so as to avoid the telescopic assembly 3 impacting the end of the sliding groove 11 in the fully closed and fully opened states, reduce the noise during use of the door opening and closing mechanism, and prolong the service life of the door opening and closing mechanism.

[0069] In some embodiments of the present application, referring to Figure 6 , the surface of the protruding structure 12 has a guide curved surface, which can reduce the resistance of the telescopic assembly 3 to the protruding structure 12, so that the user can apply moderate force when operating the door opening and closing mechanism. While achieving the blocking effect of the protruding structure 12 on the telescopic assembly 3, the reciprocating movement of the telescopic assembly 3 in the sliding groove 11 will not be completely stuck.

[0070] In some embodiments of the present application, the cross section of the protruding structure 12 is a semicircular cross section with an arc-shaped guide curved surface, which can not only achieve the slowing down and hindering effect on the telescopic assembly 3, but also make the telescopic assembly 3 easy to move to the next hovering position or the first sliding section 111 when in the retracted state.

[0071] It should be noted that the protruding structure 12 can be a hemispherical protrusion or a strip-shaped protrusion (the cross section of the strip-shaped protrusion is semicircular, and the length direction of the strip-shaped protrusion is perpendicular to the sliding direction of the telescopic assembly 3 in the sliding groove 11), which can achieve the purpose of the present application.

[0072] In the above embodiment, the number and interval of the protruding structures 12 in the second sliding section 112 can be set according to the arrangement scheme of the plurality of hovering positions (such as the interval angle between adjacent hovering positions), and specifically, when the second sliding section 112 is relatively long and the number of the protruding structures 12 is relatively large, a larger hovering range of the door body assembly 2 can be formed. When the interval between the protruding structures 12 is relatively small or the size of the protruding structures 12 is relatively large, the speed of reaching the hovering state of the next hovering position is faster; when the interval between the protruding structures 12 is relatively large or the size of the protruding structures 12 is relatively small, the speed of reaching the hovering state of the next hovering position is slower.

[0073] In the above embodiment, the telescopic assembly 3 can be a mechanical telescopic structure, or an electromagnetic drive, hydraulic drive or pneumatic telescopic structure, which can achieve the purpose of the present application. However, when the telescopic assembly 3 is an electromagnetic drive, hydraulic drive or pneumatic telescopic structure, a complex control pipeline and control circuit need to be arranged on the door body assembly 2, which will increase the space occupancy rate and manufacturing cost of the door opening and closing mechanism.

[0074] In order to solve the above problems, in some embodiments of the present application, please refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , the telescopic assembly 3 is preferably a mechanical telescopic structure, and specifically, the telescopic assembly 3 includes an elastic member 31 and a movable member 32, the elastic member 31 is arranged between the door body assembly 2 and the movable member 32, the elastic member 31 always has a tendency to move the movable member 32 towards the sliding groove 11, so that the abutting end 322 of the movable member 32 always abuts on the first sliding section 111 or the second sliding section 112, thereby realizing the automatic closing of the door body assembly 2 or the stay at any one of the hovering positions. The telescopic assembly 3 has a simple structure, which is conducive to reducing the space occupancy rate of the telescopic assembly 3 in the door opening and closing mechanism.

[0075] In some embodiments of the present application, please refer to Figure 4 、 Figure 5 and Figure 7When the abutting end 322 of the movable piece 32 abuts against the first inclined surface structure 1111 of the first sliding section 111, the elastic piece 31 is in a compressed state and exerts an upward vertical pushing force on the movable piece 32; the first inclined surface structure 1111 exerts a horizontal leftward component force on the movable piece 32, and under the action of the two forces, the movable piece 32 moves along the first inclined surface structure 1111 from the right side to the left side of the first sliding section 111, until the door body assembly 2 is completely closed.

[0076] In some embodiments of the present application, please refer to Figure 4 、 Figure 5 and Figure 6 After the telescopic assembly 3 passes the boundary 113, the abutting end 322 of the movable piece 32 abuts against the second inclined surface structure 1121 of the second sliding section 112, and the elastic piece 31 is still in a compressed state and exerts an upward vertical pushing force on the movable piece 32; the second inclined surface structure 1121 exerts a horizontal rightward component force on the movable piece 32, which is beneficial to the moving speed of the door body assembly 2 and the telescopic assembly 3 from the previous hovering position to the next hovering position when the door is opened. When it is necessary to pass the protruding structure 12, the user rotates the door body assembly 2, the protruding structure 12 exerts a pressure on the movable piece 32, the elastic piece 31 is contracted, and the abutting end 322 of the movable piece 32 smoothly passes the protruding structure 12 under the action of the guide curved surface, so that the telescopic assembly 3 can move back and forth on the second sliding section 112.

[0077] In the above embodiments, when the length of the first sliding section 111 is less than the length of the second sliding section 112, the slope of the first inclined surface structure 1111 is preferably greater than the slope of the second inclined surface structure 1121, so that the elastic piece 31 is in a natural state when the door body assembly 2 is completely opened or completely closed (i.e. the telescopic assembly 3 is located at both ends of the sliding groove 11), the elastic piece 31 is in the original length without stretching or compression, and the elastic piece 31 has no stress or deformation caused by compression, so that the service life of the elastic piece 31 can be prolonged.

[0078] It should be noted that the elastic modulus of the elastic piece 31 can be set according to the required opening and closing speed, opening and closing difficulty and the like of the door body assembly 2. Specifically, the smaller the elastic modulus, the smaller the force required for opening and closing the door body assembly 2, but the automatic closing speed of the door body assembly 2 will be slowed down; the greater the elastic modulus, the greater the automatic closing speed of the door body assembly 2, but the force required for the user to open and close the door body assembly 2 will also increase, which will affect the user's opening and closing experience.

[0079] In some embodiments of the present application, please refer to Figure 3 、 Figure 4 and Figure 6The mounting seat 21 is arranged on the door body assembly 2, the two ends of the elastic member 31 are respectively abutted between the mounting seat 21 and the movable member 32, and the mounting seat 21 is used to fix the elastic member 31 and provide a counterforce for the elastic member 31, so that the movable member 32 is abutted on the first inclined surface structure 1111 or the second inclined surface structure 1121 through the elastic member 31.

[0080] In some embodiments of the present application, referring to Figure 3 、 Figure 4 and Figure 6 , the mounting seat 21 comprises a positioning column 211, and the elastic member 31 is sleeved outside the positioning column 211, so that the elastic member 31 is limited and guided in extension and contraction, which can prevent the elastic member 31 from being separated from the mounting seat 21 and make the elastic member 31 always extend and contract in a preset direction (such as the vertical direction in Figure 6 ). The movable member 32 has an inner cavity 321 for accommodating the elastic member 31, and the end of the elastic member 31 away from the mounting seat 21 is abutted inside the inner cavity 321, so that the end of the elastic member 31 away from the mounting seat 21 is limited through the inner cavity 321, thereby preventing the elastic member 31 from being separated from the movable member 32, realizing reliable connection among the mounting seat 21, the elastic member 31 and the movable member 32, and enabling relative movement among them and preventing complete separation, which is beneficial to guarantee the cooperation reliability between the extension and contraction assembly 3 and the door body assembly 2 and the limiting assembly 1.

[0081] In some embodiments of the present application, the elastic member 31 is a compression spring, and the mounting seat 21 further comprises an abutting portion 212 connected with the mounting column, which can support the bottom of the elastic member 31 when the elastic member 31 is sleeved on the mounting column; and the abutting portion 212 can apply a counterforce to the elastic member 31 when the extension and contraction assembly 3 is extended and contracted.

[0082] In the above embodiments, the mounting seat 21 and the door plate 22 of the door body assembly 2 can be detachably connected or integrated, both of which can achieve the purpose of the present application.

[0083] In some embodiments of the present application, referring to Figure 3 、 Figure 8 、 Figure 9 and Figure 10 , the door body opening and closing mechanism further comprises a hinged assembly 4 connected with the door body assembly 2, so that the door body assembly 2 can rotate relative to the limiting assembly 1, thereby realizing cooperation between the extension and contraction assembly 3 and the sliding groove 11.

[0084] In some embodiments of the present application, referring to Figure 3 、 Figure 8 、 Figure 9 and Figure 10The hinge assembly 4 includes a hinge shaft 41 and a hinge seat 42. The door panel 22 of the door body assembly 2 is provided with a hinge hole 23 for engaging with the hinge shaft 41, allowing the entire door panel 22 assembly to rotate relative to the hinge seat 42. The hinge seat 42 and the limiting block 14 of the limiting assembly 1 are fixedly positioned relative to each other. When the door panel 22 assembly rotates relative to the hinge seat 42, the relative position between the telescopic assembly 3 and the slide groove 11 also changes.

[0085] It should be noted that the above-mentioned door opening and closing mechanism can be applied to any device or equipment with a door, thereby realizing the automatic closing of the door component 2 within a small angle opening and closing range and its hovering within a large angle opening and closing range, which is beneficial to improving the user's door opening and closing experience.

[0086] Please see Figures 1 to 10 The second aspect of this application provides a storage device, including the door opening and closing mechanism described in the above embodiments, which can be used to improve the opening and closing experience of the storage device.

[0087] It should be noted that the storage device can be a storage cabinet, filing cabinet, safe, etc. Through the door opening and closing mechanism of this application, the door component 2 can be suspended, so that there is no need to hold the door component 2 by hand when taking or taking items, which can improve the efficiency of taking or taking items. When closing the door, as long as the telescopic component 3 passes the dividing part 113 from the second sliding section 112, the door component 2 can be automatically closed, which can avoid the door not being fully closed due to insufficient force when the user closes the door.

[0088] Please see Figures 1 to 10 The third aspect of this application provides an electrical device, including the door opening and closing mechanism described in the above embodiments, and also including a housing 5. A limiting component 1 and a door component 2 are both disposed on the housing 5 to realize the opening and closing of the housing 5. The door opening and closing mechanism allows the door component 2 to remain in a suspended position, facilitating the user to retrieve items inside the electrical device; the door opening and closing mechanism also allows the door component 2 to automatically close within a certain opening and closing angle range, avoiding adverse effects on the normal operation of the electrical device.

[0089] It should be noted that the electrical appliances can be refrigerators, ovens, disinfection cabinets, etc. The interior of the cabinet 5 has space for placing items. The door assembly 2 is stopped in the hovering position by the door opening and closing mechanism, which makes it easy to put and take out items inside the cabinet 5. The door assembly 2 is automatically closed by the door opening and closing mechanism, which can prevent the leakage of cold and hot air inside the cabinet 5 and prevent the energy consumption of the electrical appliances from increasing.

[0090] In some embodiments of this application, please refer to Figure 1 , Figure 8 , Figure 9 andFigure 10 The plurality of protruding structures 12 are located on the side of the sliding groove 11 away from the cabinet 5, which can be used to stop when the opening and closing angle of the door body assembly 2 is large, so that the user can take and place objects within a large opening and closing angle, which conforms to the user's usage habits and helps to improve the user's experience.

[0091] It should be noted that the plurality of protruding structures 12 not only allow the door panel 22 assembly to stop at any hovering position, but also slow down the opening speed when the user opens the door with great force, thereby avoiding the mutual collision of the connecting part of the hinge assembly 4 and the door body assembly 2 due to excessive force, which helps to improve the service life of the door body assembly 2 and the hinge assembly 4.

[0092] Correspondingly, the first sliding section 111 is located on the side of the sliding groove 11 close to the cabinet 5, and when the opening and closing angle between the door body assembly 2 and the cabinet 5 is small, the first inclined surface structure 1111 can be used in cooperation with the telescopic assembly 3 to automatically close the door body assembly 2.

[0093] In some embodiments of the present application, a first magnetic seal is arranged at the opening of the cabinet 5, and a second magnetic seal corresponding to the first magnetic seal is arranged on the door body assembly 2. When the door body opening and closing mechanism automatically closes the door body assembly 2, the first magnetic seal and the second magnetic seal can be used to attract the door panel 22 and the cabinet 5. At the same time, since the main structure (i.e. the sealing strip part) of the first magnetic seal and the second magnetic seal is made of elastic material such as rubber, the kinetic energy of the door body assembly 2 can be absorbed, thereby avoiding the rigid collision between the door panel 22 and the cabinet 5, which helps to reduce the noise generated when the door body assembly 2 is closed.

[0094] In some embodiments of the present application, please refer to Figure 8 , Figure 9 and Figure 10 , the electric appliance is a refrigerator, the hinge seat 42 of the hinge assembly 4 is fixedly arranged on the top of the cabinet 5 of the refrigerator, and the limiting block 14 of the limiting assembly 1 can be directly fixedly arranged on the cabinet 5 or the hinge seat 42, which can achieve the purpose of the present application.

[0095] In some embodiments of the present application, please refer to Figure 9 and Figure 10 , the limiting block 14 is directly connected to the top of the cabinet 5 through the connecting part 15, which can achieve the fixed arrangement of the limiting assembly 1. When the door panel 22 assembly rotates relative to the cabinet 5, the telescopic assembly 3 moves in the sliding groove 11, and the sliding groove 11 can guide and limit the movement of the movable part 32.

[0096] Please refer to Figures 1 to 10 , in some embodiments of the present application, the use method of the above-mentioned door body opening and closing mechanism is as follows:

[0097] Step one: when opening the door, the door panel 22 of the door body assembly 2 is pulled forward, so that the telescopic assembly 3 passes the boundary 113 from the first sliding section 111 until the door body assembly 2 reaches the desired opening angle;

[0098] Step two: after the user releases the door panel 22, the telescopic assembly 3 is abutted to the adjacent convex structure 12 on the right side under the action of the second inclined surface structure 1121, so as to realize the hovering of the door body assembly 2;

[0099] Step three: after the user releases the door panel 22, the telescopic assembly 3 passes the boundary 113 from the second sliding section 112, so as to release the door panel 22;

[0100] Step four: the telescopic assembly 3 realizes the automatic closing of the door body assembly 2 under the action of the first inclined surface structure 1111 and the elastic member 31.

[0101] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open- and closed- ended conditions) unless otherwise indicated with certainty by context. The methods described herein can be implemented by one or more computer programs or software modules that operate to perform the methods.

[0102] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms when used herein do not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0103] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A door opening and closing mechanism, characterized in that, include: A limiting component (1) is provided with a sliding groove (11), and the interior of the sliding groove (11) is provided with a plurality of protruding structures (12) for forming a plurality of hovering positions in the length direction of the sliding groove (11); Door assembly (2), which is rotatable relative to the limiting assembly (1); Telescopic component (3) is disposed on the door assembly (2). One end of the telescopic component (3) away from the door assembly (2) extends into the slide groove (11) to cooperate with the plurality of protruding structures (12) to enable the door assembly (2) to stop at any of the hovering positions.

2. The door opening and closing mechanism according to claim 1, characterized in that, The slide (11) includes a first sliding section (111) and a second sliding section (112) that are connected. The first sliding section (111) has a first inclined surface structure (1111), and the telescopic component (3) cooperates with the first inclined surface structure (1111) to realize the automatic closing of the door component (2); Multiple protrusions (12) are disposed on the second sliding segment (112) to form multiple hovering positions in the length direction of the second sliding segment (112).

3. The door opening and closing mechanism according to claim 2, characterized in that, The length of the first sliding segment (111) is less than the length of the second sliding segment (112).

4. The door opening and closing mechanism according to claim 2, characterized in that, The second sliding segment (112) has a second inclined surface structure (1121), and a plurality of the protrusions (12) are disposed on the second inclined surface structure (1121).

5. The door opening and closing mechanism according to claim 1, characterized in that, The end of the slide (11) is provided with a buffer (13).

6. The door opening and closing mechanism according to any one of claims 1 to 5, characterized in that, The surface of the protruding structure (12) has a guide surface.

7. The door opening and closing mechanism according to any one of claims 1 to 5, characterized in that, The telescopic assembly (3) includes an elastic element (31) and a movable element (32). The elastic element (31) is disposed between the door assembly (2) and the movable element (32). The elastic element (31) always has a tendency to move the movable element (32) toward the slide (11).

8. The door opening and closing mechanism according to claim 7, characterized in that, The door assembly (2) is provided with a mounting base (21), and the two ends of the elastic member (31) abut against the mounting base (21) and the movable member (32) respectively.

9. The door opening and closing mechanism according to claim 8, characterized in that, The mounting base (21) includes a positioning post (211), the elastic element (31) is sleeved on the outside of the positioning post (211), the movable element (32) has an inner cavity (321) for accommodating the elastic element (31), and one end of the elastic element (31) away from the mounting base (21) abuts against the inside of the inner cavity (321).

10. The door opening and closing mechanism according to any one of claims 1 to 5, characterized in that, It also includes a hinge assembly (4) connected to the door assembly (2) so that the door assembly (2) can rotate relative to the limiting assembly (1).

11. A storage device, characterized in that, Includes the door opening and closing mechanism as described in any one of claims 1 to 10.

12. An electrical appliance, characterized in that, The device includes the door opening and closing mechanism as described in any one of claims 1 to 10, and also includes a housing (5), wherein the limiting component (1) and the door component (2) are both disposed on the housing (5) to realize the opening and closing of the housing (5).

13. The electrical equipment according to claim 12, characterized in that, The plurality of the protruding structures (12) are located on the side of the groove (11) away from the housing (5).

14. The electrical equipment according to claim 12 or 13, characterized in that, The opening of the box (5) is provided with a first magnetic seal, and the door assembly (2) has a second magnetic seal that corresponds to the first magnetic seal.

Images