Door opening mechanism and box body assembly

Abstract

The invention discloses a door opening mechanism and a box body assembly, the door opening mechanism is used for being arranged on the box body assembly, one of a box body and a door body is used as a first connecting part, the other one of the box body and the door body is used as a second connecting part, the door opening mechanism is arranged on the first connecting part, and the door opening mechanism comprises a rolling part and a sliding part, the predetermined track comprises a first end and a second end which are oppositely arranged, and the second end is closer to the pivot side relative to the first end; when the rolling piece is located at the first end, the rolling piece is contained in the first connecting part. In the process that the rolling piece moves from the first end to the second end along the preset track, the rolling piece extends out of the first connecting part and makes rolling contact with the second connecting part so as to push the door body and the refrigerator body to be separated from each other and rotationally opened. The rolling piece can continuously push the door body and the refrigerator body to rotate relatively, and the stable and controllable opening process of the door body is achieved. The rolling contact between the rolling piece and the second connecting part reduces friction and reduces noise.

Description

Technical Field

[0001] The present application belongs to the field of smart home appliance technology, and specifically relates to a door opening mechanism and a box assembly. Background Art

[0002] With the development of automation and intelligence in household appliances, some household appliances have an automatic door opening device between the cabinet and the door to achieve the automatic opening function of the door on the cabinet.

[0003] Currently, automatic door opening devices usually use a push rod to push the door to open automatically. However, when the push rod drives the door to open, the side edge of the push rod slides against the door, resulting in large friction, which not only makes the door open difficult but also makes a lot of noise. Summary of the Invention

[0004] This application provides a door opening mechanism and a box assembly to solve the technical problem that the door opening mechanism has difficulty opening the door and makes a lot of noise.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a door opening mechanism, which is used to be arranged in a box assembly, and the box assembly includes a box and a door body that are pivotally connected, with one of the box and the door body as the first connection part, and the other of the box and the door body as the second connection part, and the door opening mechanism is arranged at the first connection part, and the door opening mechanism includes: a rolling member, which is arranged to move back and forth along a predetermined track, and the predetermined track includes a first end and a second end that are relatively arranged, and the second end is closer to the pivot side relative to the first end; a driving assembly, which drives the rolling member to move back and forth along the predetermined track; wherein, when the rolling member is located at the first end, the rolling member is accommodated in the first connection part; in the process of the rolling member moving from the first end along the predetermined track to the second end, the rolling member extends out of the first connection part and rolls in contact with the second connection part to push the first connection part and the second connection part to separate from each other and rotate open.

[0006] According to one embodiment of the present application, the connecting rod is entirely located on a side of the first reference line facing the first outer side wall.

[0007] According to one embodiment of the present application, the predetermined track includes a first track and a second track connected, the end of the first track away from the second track is the first end, and the end of the second track away from the first track is the second end; in the process of moving along the first track to the second end, the first track gradually approaches the second connection part, and the distance that the rolling element extends out of the first connection part gradually increases; in the process of moving along the second track to the second end, the distance that the rolling element extends out of the first connection part remains unchanged.

[0008] According to one embodiment of the present application, the second track is located on the side of the first connection portion facing the second connection portion, and the second track is linear; the first track is arc-shaped, or the first track is linear and inclined relative to the second track.

[0009] According to one embodiment of the present application, the predetermined track is linear, and in the direction from the first end to the second end, the predetermined track gradually approaches the second connection portion, so that the distance that the rolling element extends from the first connection portion gradually increases.

[0010] According to one embodiment of the present application, the first connecting portion is provided with the predetermined track, and the rolling element includes: a roller, configured to be in rolling contact with the second connecting portion; a guide shaft, movably arranged on the predetermined track, the roller coaxially rotatably arranged on the end of the guide shaft away from the predetermined track, and the driving assembly is configured to drive the guide shaft to move back and forth along the predetermined track.

[0011] According to one embodiment of the present application, the driving assembly includes: a slider, which approaches or moves away from the pivot side along a first direction, the slider is provided with a giveway groove extending along a second direction, the guide shaft is located in the giveway groove, the second direction intersects with the first direction, and when the slider is located at the first end, the first track is located between the first direction and the second direction; a translational driving member, which is arranged on the first connecting portion and is configured to drive the slider to move back and forth along the first direction.

[0012] According to one embodiment of the present application, the translation drive member includes: a screw extending along the first direction, the slider being threadedly connected to the screw; and a power member driving the screw to rotate.

[0013] According to one embodiment of the present application, the extension direction of the second track is parallel to the first direction.

[0014] According to one embodiment of the present application, the first direction is the width direction of the first connecting portion, and the second direction is perpendicular to the first direction.

[0015] According to one embodiment of the present application, the door opening mechanism also includes: a first sensing member, which is arranged on the first connecting part, and when the rolling member moves to the first end, the first sensing member is triggered and sends a signal to the driving component; and / or, a second sensing member, which is arranged on the first connecting part, and when the rolling member moves to the second end, the second sensing member is triggered and sends a signal to the driving component.

[0016] In order to solve the above technical problems, another technical solution adopted in this application is: a box assembly, including a box body and a door body that are pivotally connected, and the above-mentioned door opening mechanism.

[0017] According to one embodiment of the present application, the first connecting portion is a door body, and the door opening mechanism is arranged at the top or bottom of the door body.

[0018] The beneficial effects of the present application are: by setting a rolling member and a driving assembly that drives the rolling member to move along a predetermined track, the automatic opening of the box assembly can be achieved, and it has at least the following advantages: 1. The rolling member extends out of the first connecting part and moves toward the pivot side along the predetermined track, which can continuously push the first connecting part and the second connecting part to rotate relative to each other, and the driving force changes stably and smoothly, thereby achieving a smooth and controllable opening process of the door body; 2. The rolling contact between the rolling member and the second connecting part reduces friction, extends the service life of the door opening mechanism, and reduces noise, providing users with a good user experience; 3. The door body can be driven to open automatically by driving the rolling member to move along the predetermined track through the driving mechanism. The door opening mechanism has a compact structure and can be installed on the box body or door body according to needs. When installed on the door body, it does not occupy the volume of the box body, thereby improving the volume ratio of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0020] Figure 1 1 is a schematic top view of the box assembly according to an embodiment of the present application, wherein the door is in a closed state;

[0021] Figure 2 This is a schematic top view of the box assembly according to one embodiment of the present application, wherein the door is in the stage of breaking the door seal;

[0022] Figure 3 1 is a schematic top view of the box assembly according to an embodiment of the present application, wherein the door is in the open stage;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the door opening mechanism according to one embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the door opening mechanism of an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Currently, automatic door opening devices typically use a push rod to push the door open automatically. The inventors of this application have discovered through extensive research that, at the moment the push rod pushes the door open, the end surface of the push rod acts on the door. As the push rod subsequently drives the door open, the positional relationship between the push rod and the door changes, causing the side edges of the push rod to slide in contact with the door. This results in irregular force variations, high friction, and an awkward door opening. Furthermore, friction between the push rod and the door generates noise, even scratching, which impacts the user experience.

[0028] For this reason, see Figures 1 to 5 , Figure 1 1 is a schematic top view of the box assembly according to an embodiment of the present application, wherein the door is in a closed state; Figure 2 This is a schematic top view of the box assembly according to one embodiment of the present application, wherein the door is in the stage of breaking the door seal; Figure 3 1 is a schematic top view of the box assembly according to an embodiment of the present application, wherein the door is in the open stage; Figure 4 This is a schematic diagram of the three-dimensional structure of the door opening mechanism according to one embodiment of the present application; Figure 5 It is a schematic diagram of the partial cross-sectional structure of the door opening mechanism of an embodiment of the present application.

[0029] One embodiment of the present application provides a housing assembly 100. The housing assembly 100 includes a housing 120, a door 110, and a door opening mechanism 200. The door 110 is pivotally connected to the housing 120 and is used to open or close the housing 120. The door opening mechanism 200 is used to drive the door 110 to rotate relative to the housing 120. Through the door opening mechanism 200, the housing assembly 100 of the present application can realize an automatic door opening function.

[0030] The box assembly 100 in the present application can be a refrigeration device such as a refrigerator or a beverage cabinet, or the box assembly 100 can also be a cleaning device such as a dishwasher, a washing machine, or a dryer, or the box assembly 100 can also be furniture such as a cabinet. Of course, the box assembly 100 can also be other equipment with a box door structure, which are not listed here one by one.

[0031] The door opening mechanism 200 in the present application can be used on a box assembly 100 having one or more door bodies 110. The door opening mechanism 200 can be installed on the box assembly 100 individually or in combination.

[0032] The door opening mechanism 200 in the present application can be installed at the top or bottom of the door body 110 , and the door opening mechanism 200 in the present application can also be installed at the top or bottom of the box body 120 .

[0033] The door opening mechanism 200 is described in detail below:

[0034] In some embodiments, one of the box body 120 and the door body 110 serves as the first connection portion 101, and the other of the box body 120 and the door body 110 serves as the second connection portion 102. The door opening mechanism 200 is disposed at the first connection portion 101. The door opening mechanism 200 includes a rolling member 210 and a drive assembly 220. The rolling member 210 reciprocates along a predetermined track 230. The predetermined track 230 includes a first end 231 and a second end 232 that are arranged opposite to each other, and the second end 232 is closer to the pivot side relative to the first end 231. The drive assembly 220 drives the rolling member 210 to reciprocate along the predetermined track 230.

[0035] When the rolling element 210 is located at the first end 231, the rolling element 210 is received in the first connection portion 101. The rolling element 210 does not extend out of the first connection portion 101 and does not exert force on the second connection portion 102. The first connection portion 101 and the second connection portion 102 can be closed normally.

[0036] As the rolling member 210 moves from the first end 231 along the predetermined track 230 toward the second end 232, the rolling member 210 extends from the first connection portion 101 and rolls into contact with the second connection portion 102, pushing the first and second connection portions 101, 102 apart and pivoting open. When the first and second connection portions 101, 102 are closed, the rolling member 210 is located at the first end 231 of the first track 233. When the first and second connection portions 101, 102 need to be opened, the rolling member 210 moves along the predetermined track 230 toward the second end 232. Because the rolling member 210 extends from the first connection portion 101 during this movement, it pushes the first and second connection portions 101, 102 apart. Furthermore, as the rolling member 210 moves along the predetermined track 230 toward the second end 232, i.e., moves toward the pivoting side, the rolling member 210 further pushes the first and second connection portions 101, 102 to pivot open relative to each other to a greater angle.

[0037] By providing a rolling member 210 and a driving assembly 220 that drives the rolling member 210 to move along a predetermined track 230, the automatic opening of the box assembly 100 can be achieved, and has at least the following advantages: 1. The rolling member 210 extends out of the first connecting part 101 and moves toward the pivot side along the predetermined track 230, which can continuously push the first connecting part 101 and the second connecting part 102 to rotate relative to each other, and the driving force changes stably and smoothly, thereby achieving a smooth and controllable opening process of the door body 110; 2. The rolling contact between the rolling member 210 and the second connecting part 102 reduces friction, extends the service life of the door opening mechanism 200, and reduces noise, providing users with a good user experience; 3. The door body 110 can be driven to open automatically by driving the rolling member 210 to move along the predetermined track 230 through the driving mechanism. The door opening mechanism 200 has a compact structure and can be installed on the box body 120 or the door body 110 according to needs. When installed on the door body 110, it does not occupy the volume of the box body 120, thereby improving the volume ratio of the box body 120.

[0038] In some embodiments, the predetermined track 230 is linear. From the first end 231 to the second end 232, the predetermined track 230 gradually approaches the second connection portion 102, so that the distance that the rolling element 210 extends from the first connection portion 101 gradually increases. As the rolling element 210 moves along the predetermined track 230 from the first end 231 to the second end 232, the rolling element 210 gradually extends from the first connection portion 101 until it reaches its maximum extension distance, thereby pushing the first connection portion 101 and the second connection portion 102 to separate from each other and rotate them open, thereby pushing the door body 110 to automatically open on the box body 120. The linear design of the predetermined track 230 simplifies the structure of the door opening mechanism 200 and reduces manufacturing costs.

[0039] To improve the door opening efficiency of the door opening mechanism 200, in some embodiments, the predetermined track 230 includes a first track 233 and a second track 234 connected to each other. The end of the first track 233 away from the second track 234 is a first end 231, and the end of the second track 234 away from the first track 233 is a second end 232. During movement along the first track 233 toward the second end 232, the first track 233 gradually approaches the second connection portion 102, and the distance that the rolling element 210 extends from the first connection portion 101 gradually increases. During movement along the second track 234 toward the second end 232, the distance that the rolling element 210 extends from the first connection portion 101 remains unchanged.

[0040] As can be seen from the above, as the rolling element 210 moves along the first end 231 to the second end 232 of the predetermined track 230, the rolling element 210 gradually extends from the first connecting portion 101 to its maximum extension distance while moving along the first track 233. The rolling element 210, while moving along the second track 234, ensures that the first connecting portion 101 and the second connecting portion 102 are continuously pushed relative to each other at the maximum extension distance. Due to limited space and the limited length of the predetermined track 230, the above embodiment allows the rolling element 210 to quickly accumulate thrust on the first track 233, pushing the first connecting portion 101 and the second connecting portion 102 apart from each other. Furthermore, upon reaching the second track 234, the rolling element 210 has sufficient driving force to smoothly continue to push the first connecting portion 101 and the second connecting portion 102 relative to each other, thus avoiding the problem of door opening jamming due to insufficient driving force. Therefore, by setting the design of the first track 233 gradually approaching the second connecting part 102, not only the driving of the rolling element 210 on the door body 110 is more stable, making the door opening process smooth, but also the moving path of the rolling element 210 is optimized, reducing unnecessary energy loss, improving the door opening efficiency, and providing users with a more comfortable user experience.

[0041] In particular, in some box assemblies 100, a door seal is provided between the door body 110 and the box body 120. The door seal contains a magnet, which allows the door body 110 to be adsorbed on the box body 120. Through the above design, the rolling element 210 can contact the first track 233 and break through the restriction of the magnetic door seal to push open the door body 110, thereby realizing the mutual separation of the door body 110 and the box body 120 (breaking the door seal stage). The rolling element 210 maintains the maximum extension distance and continues to move toward the pivot side on the second track 234, which can push the door body 110 to open further (opening stage). When the rolling element 210 moves to the second end 232 of the predetermined track 230, although the rolling element 210 can no longer push the door body 110 to open, the door body 110 maintains the inertia to continue to rotate open, ensuring that the door body 110 can be opened to a larger angle.

[0042] Specifically, the second track 234 is located on a side of the first connection portion 101 facing the second connection portion 102. The second track 234 is close to the second connection portion 102 so that the rolling element 210 moving along the second track 234 can maintain a maximum extension distance from the first connection portion 101. The second track 234 can be arranged parallel to the side surface of the first connection portion 101 facing the second connection portion 102.

[0043] Because the first end 231 of the first track 233 is relatively farther away from the second connecting portion 102 to accommodate the rolling element 210 within the first connecting portion 101, the first track 233 can be curved to gradually approach the second track 234; alternatively, the first track 233 can be linear and inclined relative to the second track 234 to gradually approach the second track 234. The length, curvature radius, or slope of the first track 233, the length and position of the second track 234, and the diameter of the rolling element 210 can be adjusted according to actual conditions to meet the requirements of the door opening mechanism 200 for use in the box assembly 100.

[0044] In some embodiments, the first connecting portion 101 defines a predetermined track 230, and the rolling element 210 includes a roller 211 and a guide shaft 212. The roller 211 is configured to engage with the second connecting portion 102 in a rolling manner. The guide shaft 212 is movably disposed on the predetermined track 230, and the roller 211 is coaxially rotatably disposed at an end of the guide shaft 212 away from the predetermined track 230. The drive assembly 220 is configured to drive the guide shaft 212 to reciprocate along the predetermined track 230.

[0045] By opening a predetermined track 230 in the first connecting part 101, the guide shaft 212 of the rolling element 210 moves along the predetermined track 230 to drive the roller 211 to move along the predetermined track 230; at the same time, while the guide shaft 212 moves in the predetermined track 230, the rolling element 210 can be rotatably connected with the guide shaft 212, or the rolling element 210 can drive the guide shaft 212 to rotate together in the predetermined track 230, and then the rolling element 210 and the second connecting part 102 can achieve rolling contact, thereby reducing the friction between the rolling element 210 and the second connecting part 102, reducing energy loss, and allowing the door body 110 to open smoothly. It also extends the service life of the door opening mechanism 200 and reduces noise, providing users with a good user experience.

[0046] Furthermore, the drive assembly 220 includes a slider 221 and a translational driver 222. The slider 221 moves toward or away from the pivot side along a first direction X. The slider 221 defines a clearance slot 2211 extending along a second direction Y, with the guide shaft 212 positioned within the clearance slot 2211. The second direction Y intersects the first direction X. When the slider 221 is at the first end 231, the first track 233 is positioned between the first direction X and the second direction Y. The translational driver 222 is disposed on the first connecting portion 101 and is configured to drive the slider 221 to reciprocate along the first direction X.

[0047] Driven by the translational drive member 222, the slider 221 can reciprocate along a first direction X. When the slider 221 moves toward the pivot point along the first direction X, the clearance slot 2211 moves accordingly, providing sufficient lateral space for the guide shaft 212 of the rolling element 210 to smoothly move along the first track 233. When the rolling element 210 moves along the first track 233 to the second track 234, the slider 221 continues to move toward the pivot point, further pushing the rolling element 210 along the second track 234. When the slider 221 moves away from the pivot point along the first direction X, the position of the clearance slot 2211 changes accordingly, while maintaining engagement with the guide shaft 212, ensuring stable movement of the guide shaft 212 within the predetermined track 230. The precise control of the drive assembly 220 ensures that the rolling element 210 can move along the predetermined reciprocating path and that the door 110 can open smoothly along the predetermined trajectory and speed, further enhancing the user experience.

[0048] Specifically, the slider 221 moves along the first direction X, and the clearance groove 2211 extends along the second direction Y. When the slider 221 is located at the first end 231, since the first track 233 is located between the first direction X and the second direction Y, the slider 221 drives the rolling element 210 to move along the first direction X. At the same time, the rolling element 210 can also move along the sliding groove in the second direction Y, which results in the rolling element 210 moving along the first track 233.

[0049] The extension direction of the second track 234 is parallel to the first direction X, ensuring that the rolling element 210 moves more smoothly and stably on the second track 234 , thereby improving the opening smoothness of the door body 110 .

[0050] The first direction X is the width direction of the first connecting portion 101. For example, if the first connecting portion 101 is the door body 110, the first direction X is the width direction of the door body 110; if the first connecting portion 101 is the box body 120, the first direction X is the width direction of the box body 120. By arranging the lead screw 2221 along the width direction of the first direction X, the door opening mechanism 200 is more rationally configured, with stable drive and convenient for uniform assembly. The second direction Y is perpendicular to the first direction X. The rational arrangement of the second direction Y allows for smooth movement within the clearance slot 2211 using the guide shaft 212.

[0051] Furthermore, the translation drive member 222 includes a lead screw 2221 and a power member 2222. The lead screw 2221 extends along the first direction X, and the slider 221 is threadedly connected to the lead screw 2221. The power member 2222 drives the lead screw 2221 to rotate. When the drive member drives the lead screw 2221 to rotate forward and reverse, the thread of the lead screw 2221 cooperates with the thread groove of the slider 221, so that the slider 221 moves linearly on the lead screw 2221 along the first direction X. Precise control of the power member 2222, such as a motor or a stepper motor, ensures the uniformity and stability of the rotation of the lead screw 2221, thereby ensuring the accuracy and reliability of the movement of the slider 221. By adopting the lead screw 2221 and the power part 2222 to realize the translational drive of the slider 221, the driving structure is simplified, so that the entire driving system has a smaller volume, higher reliability and durability, and the overall structure of the door opening mechanism 200 is compact and small in volume. Compared with the existing larger door opening mechanism 200 that can only be installed on the box body 120, the door opening mechanism 200 of the present application can be installed on the door body 110, thereby improving the volume ratio of the box body 120.

[0052] In some embodiments, the door opening mechanism 200 further includes a second sensor 250 . The second sensor 250 is disposed at the first connecting portion 101 . When the rolling element 210 moves to the second end 232 , the second sensor 250 is triggered and sends a signal to the driving assembly 220 .

[0053] During the stage of driving the door body 110 to automatically open, the rolling element 210 moves from the first end 231 to the second end 232 along the predetermined track 230. When the rolling element 210 moves to the second end 232, it indicates that the door body 110 has been fully opened or is about to reach the fully opened state. The second sensor 250 is triggered and sends a signal to the drive component 220, instructing the drive component 220 to stop the drive work in this direction and start the reverse drive work. After receiving the signal, the drive component 220 stops the drive work in this direction to avoid damage to the mechanism or energy waste caused by excessive drive. At the same time, the reverse drive work is started. The rolling element 210 returns to the first end 231 along the predetermined track 230 to be accommodated in the first connecting part 101. At this time, the rolling element 210 does not affect the normal closing of the door body 110.

[0054] In some embodiments, the door opening mechanism 200 further includes a first sensor 240 . The first sensor 240 is disposed at the first connecting portion 101 . When the rolling element 210 moves to the first end 231 , the first sensor 240 is triggered and sends a signal to the driving assembly 220 .

[0055] During the retraction phase after driving door body 110 to automatically open, drive assembly 220 drives rolling element 210 along predetermined track 230 from second end 232 toward first end 231. When rolling element 210 reaches first end 231, first sensor 240 triggers and sends a signal to drive assembly 220, instructing it to stop driving in that direction. The automatic door opening operation is now complete. Upon receiving the signal, drive assembly 220 can stop driving at the appropriate time, effectively preventing overdriving or misoperation, thereby improving the automation and stability of door opening mechanism 200.

[0056] Specifically, the first sensing element 240 may be disposed at the first end 231 of the predetermined track 230 . The first sensing element 240 may be used to sense the slider 221 , or may be disposed to sense the rolling element 210 .

[0057] The first sensing element 240 can be a travel switch, a photoelectric sensor, etc.

[0058] Likewise, the second sensing element 250 may be disposed at the second end 232 of the predetermined track 230 . The second sensing element 250 may be used to sense the slider 221 , or may be disposed to sense the rolling element 210 .

[0059] The second sensing element 250 can be a travel switch, a photoelectric sensor, etc.

[0060] The door opening mechanism 200 of the present application has a simple and compact structure and a reasonable layout. It can be arranged on the door body 110. Regardless of whether it is arranged on the box body 120 or the door body 110, it will not excessively occupy the space of the box assembly 100. It is particularly suitable for automatic door opening of the embedded box assembly 100, solving the problem of automatic door opening in a compact installation environment.

[0061] It should be noted that terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they may be slightly tilted. Terms such as "parallel" and "perpendicular" do not imply that components are absolutely parallel or perpendicular to each other, but rather that a certain angle deviation may be formed. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted. Furthermore, terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships typically used when the products of this application are used. These terms are used solely to facilitate the description of the embodiments of this application and to simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A door opening mechanism, characterized in that: Used to be set in a box assembly, the box assembly includes a box and a door body that are pivotally connected, one of the box and the door body is used as a first connection part, and the other of the box and the door body is used as a second connection part, the door opening mechanism is set at the first connection part, and the door opening mechanism includes: a rolling member configured to reciprocate along a predetermined track, wherein the predetermined track includes a first end and a second end disposed opposite to each other, wherein the second end is closer to a pivot side than the first end; A driving assembly, driving the rolling element to reciprocate along the predetermined track; Wherein, when the rolling member is located at the first end, the rolling member is accommodated in the first connecting portion; in the process of the rolling member moving from the first end along the predetermined track to the second end, the rolling member extends out of the first connecting portion and rolls in contact with the second connecting portion to push the first connecting portion and the second connecting portion to separate from each other and rotate open.

2. The door opening mechanism according to claim 1, characterized in that: The predetermined track includes a first track and a second track connected to each other, the end of the first track away from the second track is the first end, and the end of the second track away from the first track is the second end; in the process of moving along the first track to the second end, the first track gradually approaches the second connecting part, and the distance that the rolling element extends out of the first connecting part gradually increases; in the process of moving along the second track to the second end, the distance that the rolling element extends out of the first connecting part remains unchanged.

3. The door opening mechanism according to claim 2, characterized in that: The second track is located on a side of the first connection portion facing the second connection portion, and the second track is linear; the first track is arc-shaped, or the first track is linear and inclined relative to the second track.

4. The door opening mechanism according to claim 1, wherein: The predetermined track is linear, and in the direction from the first end to the second end, the predetermined track gradually approaches the second connection portion, so that the distance that the rolling element extends out of the first connection portion gradually increases.

5. The door opening mechanism according to claim 2, characterized in that: The first connecting portion is provided with the predetermined track, and the rolling element includes: a roller, configured to be in rolling contact with the second connecting portion; The guide shaft is movably arranged on the predetermined track, the roller is coaxially rotatably arranged on the end of the guide shaft away from the predetermined track, and the driving component is configured to drive the guide shaft to move back and forth along the predetermined track.

6. The door opening mechanism according to claim 5, characterized in that: The drive assembly includes: a slider that approaches or moves away from the pivot side along a first direction, the slider being provided with a clearance groove extending along a second direction, the guide shaft being located in the clearance groove, the second direction intersecting the first direction, and the first track being located between the first direction and the second direction when the slider is located at the first end; The translation driving member is provided at the first connecting portion and is configured to drive the slider to move back and forth along the first direction.

7. The door opening mechanism according to claim 6, characterized in that: The translation drive member comprises: A lead screw extends along the first direction, and the slider is threadedly connected to the lead screw; The power member drives the lead screw to rotate.

8. The door opening mechanism according to claim 7, characterized in that: An extending direction of the second track is parallel to the first direction.

9. The door opening mechanism according to claim 7, characterized in that: The first direction is a width direction of the first connecting portion, and the second direction is perpendicular to the first direction.

10. The door opening mechanism according to any one of claims 1 to 9, characterized in that: The door opening mechanism also includes: a first sensing element, disposed at the first connecting portion, wherein when the rolling element moves to the first end, the first sensing element is triggered and sends a signal to the driving component; and / or The second sensing element is provided at the first connecting portion. When the rolling element moves to the second end, the second sensing element is triggered and sends a signal to the driving component.

11. A box assembly, characterized in that: The invention comprises a box body and a door body which are pivotally connected, and a door opening mechanism according to any one of claims 1 to 10.

12. The box assembly according to claim 11, characterized in that The first connecting portion is a door body, and the door opening mechanism is arranged at the top or bottom of the door body.

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