Door opening and closing mechanism and box body assembly

Abstract

The utility model discloses a door opening and closing mechanism and a box assembly. The door opening and closing mechanism comprises a door rotating device and a driving assembly. The revolving door device comprises a translation assembly arranged on the box body; the first end of the linkage rod is rotationally arranged on the translation assembly, and the second end of the linkage rod is rotationally arranged on the door body or the hinge mechanism; the translation assembly can drive the first end to move so as to achieve swinging of the linkage rod, and then the door body is driven to rotate relative to the box body. Wherein the direct connecting line of the first end and the second end is used as a first reference line, and the outer side wall, corresponding to one side of the hinge mechanism, of the box body is used as a first outer side wall; at least the section of the linkage rod connected with the second end is located on the side, facing the first outer side wall, of the first reference line. In the door body opening process, the part, exceeding the box body, of the linkage rod is closer to the hinge mechanism and the first outer side wall compared with the first reference line, the linkage rod is more hidden and visually fused with the hinge mechanism, the whole product is more attractive, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intelligent household appliances, and particularly relates to a door opening and closing mechanism and a box assembly. BACKGROUND

[0002] With the development of automation and intelligence of household devices, the box and the door body of some household devices are connected through an automatic door opening and closing device to realize automatic opening and closing of the door body on the box.

[0003] However, the connecting rod structure for driving the door body to rotate in the automatic door opening and closing device is arranged on the box assembly in a relatively conspicuous manner, especially when the door body is opened, the connecting rod structure is relatively conspicuous, which affects the overall appearance of the product. CONTENT OF THE UTILITY MODEL

[0004] The application provides a door opening and closing mechanism and a box assembly to solve the technical problem of insufficient concealment of the structure arrangement of the door opening and closing mechanism.

[0005] To solve the above technical problem, one technical solution adopted by the application is: a door opening and closing mechanism for a box assembly, the box assembly comprising a box and a door body rotatably arranged on the box through a hinge mechanism, the door opening and closing mechanism comprising a door rotating device and a driving assembly, the door rotating device being used to drive the door body to rotate relative to the box, and the driving assembly being used to provide power for the door rotating device; wherein the door rotating device comprises: a translation assembly arranged on the box; a connecting rod, a first end of the connecting rod being rotatably arranged on the translation assembly, and a second end of the connecting rod being rotatably arranged on the door body or the hinge mechanism; the translation assembly can drive the first end to move to realize swinging of the connecting rod, thereby driving the door body to rotate relative to the box; wherein a direct line connecting the first end and the second end is a first reference line, and an outer side wall of the box corresponding to one side of the hinge mechanism is a first outer side wall; at least a section of the connecting rod connected to the second end is located on one side of the first reference line towards the first outer side wall.

[0006] According to an embodiment of the application, the connecting rod is located on one side of the first reference line towards the first outer side wall as a whole.

[0007] According to an embodiment of the application, in the extension direction from the second end to the first end, the connecting rod has a curved structure extending first towards the side of the first outer side wall and then towards the direction of the first reference line.

[0008] According to an embodiment of the present application, when the door body rotates to the maximum opening angle, the extension trend of the section of the linkage rod beyond the cabinet is consistent with the unfolding trend of the hinge mechanism; or, during the process that the door body rotates from the closed state to the maximum opening angle, the extension trend of the section of the linkage rod gradually beyond the cabinet is consistent with the unfolding trend of the hinge mechanism.

[0009] According to an embodiment of the present application, the translation assembly is installed on the top of the cabinet, and the first end of the linkage rod is rotationally connected to the bottom of the translation output of the translation assembly, so as to reduce the distance between the linkage rod and the top of the cabinet.

[0010] According to an embodiment of the present application, the linkage rod further comprises a connecting seat and a hinge column, the hinge column is arranged on the connecting seat, the connecting seat is arranged on the door body or the hinge mechanism, and the second end of the linkage rod is rotationally arranged on the hinge column.

[0011] According to an embodiment of the present application, the switch door mechanism further comprises a clutch device arranged between the rotating door device and the driving assembly, so as to realize the engagement and separation of the driving assembly and the rotating door device; the clutch device comprises an engagement member and a combination sleeve, the combination sleeve is in butt joint with the rotating door device, the engagement member moves radially to butt joint with the combination sleeve under the driving of the driving assembly, and the clutch device is in the engagement state; the driving assembly stops driving, the engagement member can be separated from the combination sleeve, and the clutch device is in the separation state.

[0012] To solve the above technical problems, another technical scheme adopted by the present application is: a cabinet assembly, comprising: a cabinet; a door body for opening or closing the cabinet; a hinge mechanism for pivotally connecting the cabinet and the door body; and a switch door mechanism as described above for driving the door body to rotate relative to the cabinet.

[0013] According to an embodiment of the present application, the hinge mechanism comprises a cabinet fixing seat arranged on the cabinet, a door body fixing seat arranged on the door body, and a linkage assembly for hinge-connecting the door body fixing seat and the cabinet fixing seat, and the second end is rotationally arranged on the door body, the door body fixing seat or the linkage assembly.

[0014] According to an embodiment of the present application, the inner side of the door body corresponds to a recessed installation groove, the translation assembly is arranged on the top of the cabinet, the cabinet fixing seat is arranged on the side of the cabinet facing the door body, the door body fixing seat is arranged in the installation groove, the linkage rod is higher than the hinge mechanism, and the second end is rotationally arranged on the top of the linkage assembly.

[0015] The beneficial effects of the present application are: the door opening and closing mechanism is designed by connecting the section of the connecting rod at the second end to the side of the first reference line facing the first outer side wall. During the opening of the door body, the part of the connecting rod beyond the door body is closer to the hinge mechanism and the first outer side wall of the box body compared to the first reference line. The connecting rod is more concealed and visually integrated with the hinge mechanism, making the product more aesthetically pleasing and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 is a top view structural schematic diagram of a box assembly of an embodiment of the present application, wherein the box assembly is in a closed state;

[0018] Figure 2 is a top view structural schematic diagram of a box assembly of an embodiment of the present application, wherein the box assembly is in an open state;

[0019] Figure 3 is a partial structural schematic diagram of a box assembly of an embodiment of the present application,

[0020] Figure 4 is a three-dimensional structural schematic diagram of a door opening and closing mechanism of an embodiment of the present application;

[0021] Figure 5 is an exploded structural schematic diagram of a clutch device of an embodiment of the present application;

[0022] Figure 6 is a cross-sectional structural schematic diagram of a clutch device of an embodiment of the present application;

[0023] Figure 7 is a cross-sectional structural schematic diagram of a clutch device of an embodiment of the present application from another perspective;

[0024] Figure 8 is a partial cross-sectional structural schematic diagram of a door opening and closing mechanism of an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the above objectives, characteristics and advantages of the present application more apparent, more comprehensible, the specific embodiments of the present application are described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings for the convenience of description, but not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a particular alternative embodiment. It will be explicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] With the development of automation and intelligence of household equipment, the existing part of the household equipment is realized by automatic opening and closing door device between the box body and the door body.

[0028] Please refer to Figure 1 and Figure 2 , Figure 1 is a top view structural schematic diagram of a box assembly of an embodiment of the present application, wherein the box assembly is in a closed state; Figure 2 is a top view structural schematic diagram of a box assembly of an embodiment of the present application, wherein the box assembly is in an open state.

[0029] An embodiment of the present application provides a box assembly 100. The box assembly 100 comprises a box body 110, a door body 120, a hinge mechanism 130 and an opening and closing door mechanism 200. The door body 120 is used to open or close the box body 110. The hinge mechanism 130 is pivotally connected to the box body 110 and the door body 120. The opening and closing door mechanism 200 is used to drive the door body 120 to rotate relative to the box body 110. The box assembly 100 of the present application can realize automatic opening and closing door function, manual opening and closing door, and power-assisted opening and closing door function when manually operated.

[0030] The box assembly 100 in the present application can be a refrigerator, a beverage cabinet and other refrigeration equipment, or the box assembly 100 can also be a dishwasher, a washing machine, a dryer and other cleaning equipment, or the box assembly 100 can also be a cabinet and other furniture, of course, the box assembly 100 can also be other equipment with box door structure, which is not listed here.

[0031] The switch door mechanism 200 in the present application can be used on the cabinet assembly 100 with one or more door bodies 120. The switch door mechanism 200 can be installed on the cabinet assembly 100 individually or in combination.

[0032] The switch door mechanism 200 in the present application can be installed on the top, bottom or inside of the cabinet 110.

[0033] The following describes the rotating door device 240 of the switch door mechanism 200 in detail:

[0034] Please continue to refer to Figure 3 and Figure 4 , Figure 3 is a partial structure diagram of the cabinet assembly according to an embodiment of the present application; Figure 4 is a three-dimensional structure diagram of the switch door mechanism according to an embodiment of the present application.

[0035] In some embodiments, the rotating door device 240 includes a translation assembly 220 and a linkage rod 230. The translation assembly 220 and the driving assembly 210 are arranged on the cabinet 110. The translation assembly 220 has a rotating input 241. The linkage rod 230 includes a first end 231 and a second end 232 arranged oppositely, the first end 231 of the linkage rod 230 is rotationally arranged on the translation assembly 220, and the second end 232 of the linkage rod 230 is rotationally arranged on the door body 120 or the hinge mechanism 130 of the cabinet assembly 100.

[0036] By arranging the linkage rod 230 as described above, the movement of the first end 231 of the linkage rod 230 driven by the translation assembly 220 can realize the swing of the linkage rod 230, and the synchronous force on the door body 120 can rotate relative to the cabinet 110, thereby realizing the automatic opening and closing function.

[0037] The present inventor has found through long-term research that the linkage structure in the switch door mechanism 200 is usually a straight rod or a curved rod arched towards the middle of the cabinet 110. When the door body 120 is rotated to open, the part of the linkage structure connected to the door body 120 is directly exposed, which is conspicuous in structure and affects the product aesthetics and user experience.

[0038] In the embodiments of the present application, the direct line connecting the first end 231 and the second end 232 is the first reference line X. The outer side wall of the cabinet 110 corresponding to one side of the hinge mechanism 130 is the first outer side wall 111. At least the section of the linkage rod 230 connected to the second end 232 is located on the side of the first reference line X towards the first outer side wall 111.

[0039] Since the second end 232 of the linkage rod 230 is used to be connected to the door body 120 or the hinge mechanism 130, the second end 232 of the linkage rod 230 is out of the box body 110 during the opening of the door body 120. In the embodiment of the application, at least the section of the linkage rod 230 connected to the second end 232 is designed to be located on the side of the first reference line X facing the first outer side wall 111. During the opening of the door body 120, the part of the linkage rod 230 out of the door body 120 is closer to the hinge mechanism 130 and the first outer side wall 111 of the box body 110 compared to the first reference line X, the linkage rod 230 is more concealed, visually integrated with the hinge mechanism 130, the overall product is more beautiful, and the user experience is improved.

[0040] It should be noted that the first reference line X mentioned here can be a straight line connecting the rotation axes of the first end 231 and the second end 232 of the linkage rod 230. At this time, the linkage rod 230 forms a linkage structure with a certain rod width. In the embodiment of the application, the section of the linkage rod 230 described on the side of the first reference line X facing the first outer side wall 111 means that the main part of the section of the linkage rod 230 is located on the side of the first reference line X facing the first outer side wall 111, and part of the structure of the section of the linkage rod 230 can be located on the side of the first reference line X away from the first outer side wall 111. Alternatively, the first reference line X can be a line connecting the side edges of the first end 231 and the second end 232 of the linkage rod 230. At this time, the section of the linkage rod 230 can also be located on the side of the first reference line X facing the first outer side wall 111.

[0041] In order to improve the concealment effect of the linkage rod 230, the section of the linkage rod 230 connected to the second end 232 needs to be arranged as far away from the first reference line X as possible. Therefore, in order to improve the concealment effect of the linkage rod 230, the whole linkage rod 230 is located on the side of the first reference line X facing the first outer side wall 111. At this time, the whole linkage rod 230 is arranged on the side close to the first outer side wall 111, which can provide more space for the design of the concealment of the linkage rod 230, the whole linkage rod 230 has a smooth trend, and is visually more integrated with the hinge mechanism 130 and the end surface of the box body 110, the overall product is more beautiful, and the user experience is improved.

[0042] Of course, in other embodiments, only the section of the linkage rod 230 connected to the second end 232, i.e., the section out of the door body 120 during the opening of the door body 120, can be designed to be on the side facing the first outer side wall 111. The section of the linkage rod 230 not out of the door body 120 can extend along the direction of the first reference line X, or be located on the side of the first reference line X away from the first outer side wall 111. At this time, the linkage rod 230 has a sickle shape.

[0043] Specifically, in the extending direction from the second end 232 to the first end 231, the linkage rod 230 has a curved structure extending first toward the side of the first outer side wall 111 and then extending toward the first reference line X direction. The overall structure of the linkage rod 230 is smooth, the structural design is reasonable, and the linkage rod 230 has better transmission effect and structural strength.

[0044] Of course, in other embodiments, the linkage rod 230 can also have a polyline structure extending first toward the side of the first outer side wall 111 and then extending toward the first reference line X direction.

[0045] To ensure that the door opening and closing mechanism 200 has a certain concealment effect, in some embodiments, when the door body 120 is rotated to the maximum opening angle, the extending trend of the section of the linkage rod 230 that extends out of the cabinet 110 is consistent with the unfolding trend of the hinge mechanism 130. When the door body 120 is opened to the maximum angle, the user is more likely to notice the exposed linkage rod 230. At least in this state, the extending trend of the section of the linkage rod 230 that extends out of the cabinet 110 needs to be consistent with the unfolding trend of the hinge mechanism 130, the linkage rod 230 has better concealment effect, and the product is more beautiful.

[0046] Of course, to ensure that the door opening and closing mechanism 200 has better concealment effect, in some embodiments, during the process that the door body 120 is rotated from the closed state to the maximum opening angle, the extending trend of the section of the linkage rod 230 that extends out of the cabinet 110 is gradually consistent with the unfolding trend of the hinge mechanism 130. At this time, the user has better concealment effect during the whole process of opening the door body 120, the product is more beautiful, and the user experience is fully improved.

[0047] It should be noted that the extending trend of the section of the linkage rod 230 that extends out of the door body 120 is consistent with the unfolding trend of the hinge mechanism 130, which means that the structural form of this section can be as similar as possible to the structural form of the unfolded state of the hinge mechanism 130, and in the vertical direction, the two are stacked and arranged, and the linkage rod 230 can be better visually integrated with the hinge mechanism 130.

[0048] In some embodiments, the translation assembly 220 is installed on the top of the cabinet 110. Since the translation assembly 220 is located on the top of the cabinet 110, the linkage rod 230 is also located on the top of the cabinet 110. When the cabinet assembly 100 is in a use state, the user stands on the ground, and in the user's visual angle, the lower the height of the linkage rod 230, the closer the distance between the linkage rod 230 and the top of the cabinet 110, and the more concealed the linkage rod 230 is. Therefore, the first end 231 of the linkage rod 230 is rotationally connected to the bottom of the translation output 226 of the translation assembly 220 to reduce the distance between the linkage rod 230 and the top of the cabinet 110, so that the linkage rod 230 is more concealed as a whole, the product is more beautiful, and the user experience is fully improved.

[0049] In some embodiments, the linkage rod 230 further comprises a connecting seat 235 and a hinged column 236. The hinged column 236 is arranged on the connecting seat 235. The connecting seat 235 is arranged on the door body 120 or the hinge mechanism 130, and the second end 232 of the linkage rod 230 is rotatably arranged on the hinged column 236. By arranging the connecting seat 235 and the hinged column 236, the installation of the second end 232 of the linkage rod 230 is facilitated, and the installation of the second end 232 can be achieved by only installing the connecting seat 235 on the appropriate position of the cabinet assembly 100 or the hinge mechanism 130. The switch door mechanism 200 is more complete in structure, and is convenient for installation in the cabinet assembly 100.

[0050] Further, the hinge mechanism 130 is a multi-link hinge. The hinge mechanism 130 comprises a cabinet fixing seat 131 arranged on the cabinet 110, a door body fixing seat 132 arranged on the door body 120, and a linkage assembly 133 hingedly connecting the door body fixing seat 132 and the cabinet fixing seat 131. The second end 232 can be rotatably arranged on the door body 120, the door body fixing seat 132 or the linkage assembly 133.

[0051] When the second end 232 is rotatably arranged on the door body 120, it is rotatably arranged on the side of the door body 120 facing the cabinet 110.

[0052] When the second end 232 is rotatably arranged on the door body fixing seat 132 or the linkage assembly 133, the linkage rod 230 can be higher than the hinge mechanism 130. At this time, the connecting seat 235 is installed on the top of the door body fixing seat 132 or the linkage assembly 133, the hinged column 236 is located on the top of the connecting seat 235, and the second end 232 of the linkage rod 230 can be rotatably arranged on the top of the linkage assembly 133 through the connecting seat 235 and the hinged column 236, so as to satisfy the installation height difference between the hinge mechanism 130 and the translation assembly 220.

[0053] Specifically, the second end 232 of the linkage rod 230 can be rotatably arranged on the linkage assembly 133, so that the linkage rod 230 can reduce or avoid interference with the linkage assembly 133 during the rotation of the door body 120. The switch door mechanism 200 is reasonable in structure design and layout, and can be used in a cabinet assembly 100 with large-angle opening and closing of the door, and is especially suitable for automatic opening and closing of embedded household appliances and furniture products. Of course, the second end 232 of the linkage rod 230 can also be rotatably arranged on the cabinet 110 or the cabinet fixing seat 131 according to actual conditions. The hinged position of the second end 232 of the linkage rod 230 can be adjusted according to the trajectory of the door body 120 during opening, so as to better apply force to the door body 120 and avoid interference.

[0054] In order to further conceal the door opening and closing mechanism 200, in some embodiments, a mounting groove 122 is formed on the inner side of the door body 120 corresponding to the recess. The translation assembly 220 is arranged on the top of the box body 110, the box body fixing seat 131 of the hinge mechanism 130 is arranged on the side of the box body 110 facing the door body 120, and the door body fixing seat 132 of the hinge mechanism 130 is arranged in the mounting groove 122. By opening the mounting groove 122 on the inner side of the door body 120, when the door body 120 is closed, the door opening and closing mechanism 200 and the hinge mechanism 130 can be hidden by the door body 120, improving the concealment, the overall appearance of the box assembly 100, and improving the product performance and user experience.

[0055] At this time, the linkage rod 230 located on the top of the box body 110 is higher than the hinge mechanism 130, and the rotation connection of the linkage rod 230 with the door body 120 or the hinge mechanism 130 can be realized by the above-mentioned embodiments.

[0056] Please continue to refer to Figure 3 and Figure 4 In some embodiments, the door opening and closing mechanism 200 further comprises a clutch device 300. The driving assembly 210 has a rotating output shaft 211. The door rotating device 240 has a rotating input member 241. The clutch device 300 is arranged between the driving assembly 210 and the door rotating device 240, and is used to engage or separate the rotating output shaft 211 and the rotating input member 241. When the clutch device 300 engages the rotating output shaft 211 and the rotating input member 241, the power of the driving assembly 210 can be transmitted to the door rotating device 240, realizing the automatic opening and closing of the door body 120; when the clutch device 300 separates the rotating output shaft 211 and the rotating input member 241, the power transmission between the driving assembly 210 and the door rotating device 240 can be cut off, and the user can manually operate the door body 120 to rotate freely.

[0057] The clutch device 300 can realize the engagement or separation of the driving assembly 210 and the translation assembly 220. When the driving assembly 210 is engaged with the translation assembly 220, the driving assembly 210 can transmit power to the translation assembly 220, and the translation assembly 220 can drive the first end 231 of the linkage rod 230 to move, and the linkage rod 230 swings to drive the door body 120 to rotate relative to the box body 110, realizing the automatic opening and closing function. When the driving assembly 210 is separated from the translation assembly 220, the first end 231 of the linkage rod 230 can move freely on the translation assembly 220 during the forced rotation of the door body 120, realizing the manual opening and closing of the door. By arranging the door opening and closing mechanism 200, the user can freely choose to manually open and close the door or use the automatic opening and closing function.

[0058] By setting the switch door mechanism 200, the automatic opening and closing door function can be realized, and the automatic opening and closing door process is as follows: obtaining the opening door instruction, the switch door mechanism 200 is powered on, the clutch device 300 engages the driving assembly 210 and the translation assembly 220, the driving assembly 210 transmits power to the translation assembly 220, the translation assembly 220 can drive the first end 231 of the connecting rod 230 to move, and the door body 120 is forced to rotate relative to the box body 110 to open the box body 110. Obtain the closing door instruction, the driving assembly 210 transmits power to the translation assembly 220, the translation assembly 220 can drive the first end 231 of the connecting rod 230 to move reversely, the door body 120 is forced to rotate relative to the box body 110 to close the box body 110, and after the door body 120 is closed, the clutch device 300 separates the driving assembly 210 and the translation assembly 220.

[0059] By setting the switch door mechanism 200, the power-assisted opening and closing door function when manually operating can also be realized, and the power-assisted opening and closing door function is as follows: when the user manually operates the opening and closing door, the switch door mechanism 200 is powered on, the clutch device 300 engages the driving assembly 210 and the translation assembly 220, the driving assembly 210 transmits power to the translation assembly 220, the translation assembly 220 can drive the first end 231 of the connecting rod 230 to move, and the power-assisted opening and closing door is realized. Since the user adds manual operation at this time, in order to improve the use safety, if there is abnormal resistance due to manual operation or other obstacles during the power-assisted opening and closing door, the driving assembly 210 stops driving, the clutch device 300 separates the driving assembly 210 and the translation assembly 220, and the door body 120 stops automatic rotation.

[0060] The switch door mechanism 200 of the present application can realize the automatic opening and closing door function and the power-assisted opening and closing door function when manually operating, realize automation and intelligentization, and on some box bodies 110 and door bodies 120 provided with adsorption structures or box assemblies 100 maintaining internal and external negative pressure, the switch door mechanism 200 can make the user open the door body 120 more labor-saving, and the switch door mechanism 200 can also ensure that the door body 120 is effectively closed and the sealing property is improved.

[0061] Since the switch door mechanism 200 has the clutch device 300, in the power failure scene, the clutch device 300 can make the driving assembly 210 and the translation assembly 220 in a separated state, the first end 231 of the connecting rod 230 can move on the translation assembly 220 with the rotation of the door body 120, and the user can freely open or close the door body 120.

[0062] The clutch device 300 comprises an engaging member 301 and a coupling sleeve 330. The coupling sleeve 330 is in abutment with the rotating door device 240, and can be coaxially fixed opposite to the rotating input 241. The engaging member 301 is driven by the driving assembly 210 to move radially to abut with the coupling sleeve 330, and the clutch device 300 is in the engaged state, so that the driving assembly 210 can control the rotating door device 240 to work. When the driving assembly 210 stops driving, the engaging member 301 can be disengaged from the coupling sleeve 330, and the clutch device 300 is in the disengaged state, so that the rotating door device 240 is not controlled by the driving assembly 210.

[0063] The engaging member 301 in the clutch device 300 in the present application can be engaged and disengaged from the coupling sleeve 330 by radial movement, and the clutch device 300 can switch between the engaged state and the disengaged state, so as to realize the engagement and disengagement between the driving assembly 210 and the rotating door device 240. The structure is simple and compact, the number of related parts is small, the overall volume is small, and the installation adaptability is strong.

[0064] Further, at least one engaging groove 331 is formed in the inner side of the coupling sleeve 330, and the engaging member 301 can move radially to engage with the engaging groove 331 under the driving of the driving assembly 210, so as to realize the engagement with the coupling sleeve 330. The clutch device 300 in the door opening and closing mechanism 200 in the present application is driven by engagement, and the engagement between the driving assembly 210 and the rotating door device 240 is more stable.

[0065] The clutch device 300 can have various implementation manners, which will be described in detail in combination with embodiments as follows:

[0066] Please continue to refer to Figures 5 to 8 , Figure 5 is an exploded structural schematic view of the clutch device according to another embodiment of the present application; Figure 6 is a cross-sectional structural schematic view of the clutch device according to another embodiment of the present application;

[0067] Figure 7 is a cross-sectional structural schematic view of the clutch device according to another embodiment of the present application from another perspective; Figure 8 is a partial cross-sectional structural schematic view of the door opening and closing mechanism according to an embodiment of the present application.

[0068] In some embodiments, the engagement member 301 comprises a holder 360, at least one magnetic piece 370, and a driving cam 380. The magnetic piece 370 can be adsorbed to the holder 360, and the holder 360 supports and limits the magnetic piece 370. A coupling sleeve 330 is sleeved outside the holder 360 and is coaxially fixed with the rotating input member 241. At least one engagement groove 331 is formed on the inner side of the coupling sleeve 330, and the engagement groove 331 is used for clamping the magnetic piece 370. The driving cam 380 is coaxially fixed with the rotating output shaft 211, and the driving cam 380 is located between the coupling sleeve 330 and the holder 360. When the driving cam 380 rotates, the driving cam 380 rotates and pushes the magnetic piece 370 to be partially clamped into the engagement groove 331. The driving cam 380 abuts against the part of the magnetic piece 370 located outside the coupling sleeve 330, and drives the coupling sleeve 330 to rotate synchronously by continuously pushing the magnetic piece 370. At this time, the driving cam 380, the magnetic piece 370, and the coupling sleeve 330 can rotate synchronously, and the clutch device 300 is in the engaged state. When the driving cam 380 does not rotate, the magnetic piece 370 can be attracted out of the engagement groove 331 by the holder 360, and the clutch device 300 is in the separated state.

[0069] The clutch device 300 in the embodiment adopts a pure mechanical structure. The output rotation of the driving assembly 210 can realize the engagement of the driving assembly 210 and the rotating door device 240, and the stop of the output rotation of the driving assembly 210 can realize the separation of the driving assembly 210 and the rotating door device 240. Therefore, the clutch device 300 does not need to cooperate with an additional electric control system and driving device, and has the advantages of simple and compact structure, small number of related parts, small overall volume, and strong installation adaptability. In addition, the clutch device 300 in the door opening and closing mechanism 200 of the present application is driven by engagement, and the engagement of the driving assembly 210 and the rotating door device 240 is more stable.

[0070] It should be noted that when the door body 120 reaches the position state, the driving assembly 210 will rotate by a certain angle to realize the separation of the driving cam, the magnetic piece 370, and the coupling sleeve 330, thereby ensuring the smooth operation of the door opening and closing mechanism 200 next time and ensuring the manual operation of the user.

[0071] The driving cam 380 has at least one tooth 381. The maximum outer diameter of the driving cam 380 is equal to or slightly smaller than the inner diameter of the coupling sleeve 330. Specifically, the distance between the end of the tooth 381 away from the rotation axis and the inner wall of the coupling sleeve 330 is smaller than the maximum length of the part of the magnetic piece 370 located outside the engagement groove 331 after being clamped into the engagement groove 331. Therefore, when the driving cam 380 rotates, the tooth 381 can push the magnetic piece 370 into the engagement groove 331, and the tooth 381 can abut against the magnetic piece 370. The driving cam 380 can drive the coupling sleeve 330 to rotate synchronously by pushing the magnetic piece 370.

[0072] When the driving cam 380 is driven to rotate, the driving cam 380 pushes the magnetic member 370 to rotate, and under the action of centrifugal force, the magnetic member 370 moves outward and is clamped into the engagement groove 331. Further, in order to facilitate the clamping of the magnetic member 370 into the engagement groove 331, the outer side surface of each tooth 381 is outwardly convex in the radial direction of the driving cam 380. Because the outer side surface of the tooth 381 is outwardly convex, when the tooth 381 rotates to the position where the arc surface contacts the magnetic member 370, the radial direction of the pushing force of the tooth 381 and the magnetic member 370 has an outward separation, and the tooth 381 can smoothly push the magnetic member 370 into the engagement groove 331. In addition, when the tooth 381 continues to rotate, the arc surface of the tooth 381 has a component force on the magnetic member 370 to make it tightly clamp into the engagement groove 331, and the magnetic member 370 can be stably clamped in the engagement groove 331.

[0073] It should be noted that because the driving direction of the driving assembly 210 driving the rotating door device 240 to open and close the door is opposite, the tooth 381 can push the magnetic member 370 into the engagement groove 331 in both forward and reverse directions, thereby achieving the opening and closing functions.

[0074] In order to improve the engagement effect of the engagement member 301 and the combination sleeve 330, the magnetic member 370 can be provided with at least two, the engagement groove 331 is provided with at least two, and the tooth 381 is provided with at least two corresponding to push the magnetic member 370 into the engagement groove 331. By providing multiple teeth 381 and magnetic members 370, the stability of the engagement of the magnetic member 370 and the combination sleeve 330 can be improved. The engagement state of the clutch device 300 is more stable, and the output of the driving assembly 210 can be stably transmitted to the rotating door device 240.

[0075] The number of engagement grooves 331 can be greater than the number of magnetic members 370, which can improve the success rate of clamping the magnetic member 370 into the engagement groove 331. The number of teeth 381 can be the same as the number of magnetic members 370. Generally, each magnetic member 370 is located between two adjacent teeth 381, and the magnetic members 370 can not interfere with each other and maintain their respective functions.

[0076] Specifically, the magnetic member 370 can be provided with two, three or more. The tooth 381 is provided with two, three or more corresponding to the tooth 381. The engagement groove 331 is provided with four, six or more corresponding to the tooth 381. The actual situation can be set, which is not limited here.

[0077] In some embodiments, the magnetic member 370 is spherical. The radius of the engagement slot 331 is equal to the radius of the magnetic member 370. Therefore, the shape of the engagement slot 331 matches the shape of the magnetic member 370, and after the magnetic member 370 is clamped into the engagement slot 331, the magnetic member 370 cannot move relative to the engagement slot 331, and the magnetic member 370 and the coupling sleeve 330 can be stably engaged and synchronously rotated. The spherical magnetic member 370 can be smoothly clamped into the engagement slot 331 at any angle, and can be smoothly separated from the engagement slot 331, which can improve the engagement and separation efficiency of the magnetic member 370 and the coupling sleeve 330.

[0078] Further, the depth of the engagement slot 331 is less than or equal to the radius of the magnetic member 370. Therefore, the opening of the engagement slot 331 is the region with the largest width, which can smoothly clamp the magnetic member 370, and the size of the magnetic member 370 clamped into the engagement slot 331 is appropriate, and the part of the magnetic member 370 outside the engagement slot 331 can be pushed by the magnetic member 370 to apply a force, and the cam 380, the magnetic member 370 and the coupling sleeve 330 can be synchronously rotated.

[0079] In some embodiments, the coupling sleeve 330 includes a first shaft sleeve 332, a coupling plate 333 and a connecting plate 334. The first shaft sleeve 332 is used to interface with the rotating door device 240. The coupling plate 333 is sleeved outside the retainer 360, and the inner side of the coupling plate 333 is provided with the engagement slot 331. The connecting plate 334 connects the first shaft sleeve 332 and the coupling plate 333, and the connecting plate 334 and the retainer 360 are relatively spaced apart, and the magnetic member 370 is located between the connecting plate 334 and the retainer 360. The coupling sleeve 330 can be stably interfaced with the rotating door device 240, specifically coaxially fixed with the rotating input member 241.

[0080] In some embodiments, the retainer 360 includes a second shaft sleeve 361 and a retaining plate 362. The second shaft sleeve 361 is used to interface with the drive assembly 210. The retaining plate 362 is connected to the second shaft sleeve 361 and located inside the coupling plate 333. The retaining plate 362 and the coupling sleeve 330 are relatively spaced apart, and the magnetic member 370 is located between the coupling sleeve 330 and the retaining plate 362. Specifically, the magnetic member 370 is located between the coupling plate 333 and the retaining plate 362. Since the retainer 360 is used to adsorb the magnetic member 370 when the drive assembly 210 stops driving, in order to facilitate structural installation, the retainer 360 can be coaxially fixed with the drive cam 380, that is, coaxially and oppositely fixed with the rotating output shaft 211 of the drive assembly 210. The magnetic member 370 is limited in the axial direction of the engagement member 301 by the connecting plate 334 and the retaining plate 362, and the structure of the engagement member 301 is more stable.

[0081] In addition, the retaining plate 362 is made of magnetic conductive material, which can attract the magnetic member 370 when the driving assembly 210 stops driving. It should be noted that the coupling sleeve 330 and the driving cam 380 are made of non-magnetic conductive material, so as to avoid affecting the engagement and disengagement of the coupling sleeve 330 and the magnetic member 370. In other embodiments, the retaining plate 362 can also be made of magnetic material, and the magnetic member 370 can be made of magnetic conductive material. The retaining plate 362 can attract the magnetic member 370 to disengage from the coupling sleeve 330.

[0082] In some embodiments, the outer diameter of the retaining plate 362 is smaller than the inner diameter of the coupling plate 333, so that when the driving assembly 210 stops driving, the retaining plate 362 can attract the magnetic member 370, and the magnetic member 370 can effectively disengage from the coupling sleeve 330, and the clutch device 300 is in a disengaged state. The specific size of the retaining plate 362 and the coupling plate 333 can be determined according to the size and magnetic parameters of the actual magnetic member 370, which is not limited here.

[0083] In some embodiments, the driving assembly 210 includes a motor 212, a rotating output shaft 211, a speed reducer 213, and a fixed seat 214. The fixed seat 214 is arranged at a corresponding position of the box body 110. The motor 212 is arranged in the fixed seat 214. The motor 212 outputs power through the rotating output shaft 211. The speed reducer 213 is connected to the motor 212, and is used to cooperate with the motor 212 to reduce the rotating speed and increase the torque.

[0084] In addition, in order to make the space more compact, the clutch device 300 can also be installed in the fixed seat 214. The coupling sleeve 330 is rotatably arranged in the fixed seat 214. The retainer 360 is separated from the motor 212 by a gasket 215, and the rotating output shaft 211 passes through the gasket 215 and is fixed opposite to the driving cam 380.

[0085] In some embodiments, the translation assembly 220 includes a lead screw 221 and a screw block 222. The lead screw 221 is rotatably arranged in the box body 110, and the lead screw 221 is the rotating input member 241, and the screw block 222 is the translation output member 226. The screw block 222 is threadedly connected to the lead screw 221, and the second end 232 of the connecting rod 230 is rotatably arranged in the screw block 222. When the clutch device 300 engages the driving assembly 210 and the translation assembly 220, the driving assembly 210 can drive the lead screw 221 to rotate, and the screw block 222 can translate on the lead screw 221 to drive the second end 232 of the connecting rod 230 to move. When the clutch device 300 disengages the driving assembly 210 and the translation assembly 220, the power transmission between the driving assembly 210 and the translation assembly 220 can be cut off. When the door body 120 is manually opened or closed, the lead screw 221 is in a free rotating state, and the connecting rod 230 can drive the screw block 222 to translate on the lead screw 221.

[0086] When the translation assembly 220 is arranged at the top or bottom of the cabinet 110, the lead screw 221 can be arranged in the depth direction of the cabinet 110. The overall structure of the door opening and closing mechanism 200 is more compact, the layout is reasonable, and the space occupied is small. Of course, the lead screw 221 can also be arranged in other directions.

[0087] Please continue to refer to Figure 8 , specifically, the number of heads, tooth shape, and length of the lead screw 221 can be designed according to actual needs. The lead screw 221 is a non-self-locking structure. The connecting end of the lead screw 221 and the clutch device 300 is also provided with a bearing seat 223 for being fixed to the corresponding position of the cabinet 110 together with the lead screw 221. The lead screw 221 is provided with a shaft sleeve 225, and the shaft sleeve 225 is installed on the bearing seat 223 through a bearing 224. The end of the lead screw 221 away from the clutch device 300 can be supported by a support sleeve 2221. By arranging the bearing 224, the rotating resistance of the lead screw 221 can be reduced, the smoothness of rotation can be improved, the resistance felt by the user when manually opening and closing the door can be sufficiently reduced, and the driving force required by the driving assembly 210 to drive the lead screw 221 to rotate can be reduced, thereby achieving a silent effect.

[0088] Of course, the bearing 224 and the support sleeve 2221 can also be exchanged in position at both ends of the lead screw 221, which is not limited here.

[0089] In other embodiments, the translation assembly 220 can also be other driving structures that can realize the translation of the second end 232 of the driving link 230. For example, a gear and rack or other translation driving structures.

[0090] In some embodiments, the door opening and closing mechanism 200 further comprises a position monitoring assembly. The position monitoring assembly comprises a sensor 251. The sensor 251 is arranged at one end of the lead screw 221. The sensor 251 is used to sense the position of the screw block 222. During the rotation of the door body 120, the screw block 222 moves along the lead screw 221, the sensor 251 senses the position change of the screw block 222, and then obtains the rotation angle of the door body 120. When the sensor 251 senses that the trigger moves to the predetermined position, it indicates that the door body 120 is opened or closed to the position, the sensor 251 sends a signal to the driving assembly 210, and the driving assembly 210 stops driving.

[0091] The door opening and closing mechanism 200 of the present application has a simple and compact structure, a reasonable layout, does not occupy the space of the cabinet assembly 100, can be used for automatic opening and closing of a large-angle cabinet assembly 100, is especially suitable for automatic opening and closing of an embedded cabinet assembly 100, and solves the automatic opening and closing of the door in a compact installation environment. The cabinet assembly 100 adopting the door opening and closing mechanism 200 of the present application can realize the functions of automatic opening and closing of the door, manual opening and closing of the door, and power-assisted opening and closing of the door during manual operation.

[0092] It should be noted that the terms "horizontal", "vertical", and the like, do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined; the terms "parallel", "perpendicular", and the like, also do not mean that the fittings must be absolutely parallel or perpendicular, but can form a certain angular deviation. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present application are usually placed during use, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0093] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A door opening mechanism, characterized by, A door opening and closing mechanism for a cabinet assembly, the cabinet assembly comprising a cabinet and a door body pivotally arranged on the cabinet by a hinge mechanism, the door opening and closing mechanism comprising a door rotating device for driving the door body to rotate relative to the cabinet and a driving assembly for providing power to the door rotating device; wherein the door rotating device comprises: a translation assembly arranged on the cabinet; a connecting rod, a first end of the connecting rod being pivotally arranged on the translation assembly, a second end of the connecting rod being pivotally arranged on the door body or the hinge mechanism; the translation assembly can drive the first end to move to realize the swinging of the connecting rod, thereby driving the door body to rotate relative to the cabinet; wherein a direct line connecting the first end and the second end is a first reference line, an outer side wall of a side of the cabinet corresponding to the hinge mechanism is a first outer side wall; at least a section of the connecting rod connected to the second end is located on a side of the first reference line towards the first outer side wall.

2. A door opening mechanism according to claim 1, characterised in that The connecting rod as a whole is located on a side of the first reference line towards the first outer side wall.

3. A door opening mechanism according to claim 2, characterised in that In an extension direction from the second end to the first end, the connecting rod has a curved structure extending first towards the side of the first outer side wall and then towards the first reference line.

4. The door opening mechanism of claim 1, wherein When the door body is rotated to a maximum opening angle, the extension trend of the section of the connecting rod beyond the cabinet is consistent with the unfolding trend of the hinge mechanism; or, In the process of rotating the door body from a closed state to a maximum opening angle, the extension trend of the section of the connecting rod gradually beyond the cabinet is consistent with the unfolding trend of the hinge mechanism.

5. The door opening mechanism of claim 1, wherein The translation assembly is installed on the top of the cabinet, and the first end of the connecting rod is pivotally connected to the bottom of the translation output of the translation assembly to reduce the distance between the connecting rod and the top of the cabinet.

6. The door opening mechanism of claim 1, wherein The connecting rod further comprises a connecting seat and a hinge column, the hinge column being arranged on the connecting seat, the connecting seat being arranged on the door body or the hinge mechanism, and the second end of the connecting rod being pivotally arranged on the hinge column.

7. A door opening mechanism according to any one of claims 1-6, characterized in that The door opening and closing mechanism further comprises a clutch device arranged between the door rotating device and the driving assembly to realize the engagement and separation of the driving assembly and the door rotating device; the clutch device comprises an engagement member and a combination sleeve, the combination sleeve is in abutment with the door rotating device, the engagement member moves radially to abut with the combination sleeve under the drive of the driving assembly, and the clutch device is in an engaged state; the driving assembly stops driving, the engagement member can be separated from the combination sleeve, and the clutch device is in a separated state.

8. A box assembly characterized by, The cabinet assembly comprises: a cabinet; a door body for opening or closing the cabinet; a hinge mechanism pivotally connecting the cabinet and the door body; a door opening and closing mechanism as claimed in any one of claims 1-7 for driving the door body to rotate relative to the cabinet.

9. The box assembly of claim 8, wherein, The hinge mechanism comprises a cabinet fixing seat arranged on the cabinet, a door body fixing seat arranged on the door body, and a connecting rod assembly hingedly connecting the door body fixing seat and the cabinet fixing seat, and the second end is pivotally arranged on the door body, the door body fixing seat or the connecting rod assembly.

10. The box assembly of claim 9, wherein, The inner side of the door body corresponds to the recess to form a mounting groove, the translation assembly is arranged at the top of the box body, the box body fixing seat is arranged at the side of the box body facing the door body, the door body fixing seat is arranged in the mounting groove, the second end is arranged at the top of the connecting rod assembly in rotation.

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