Clutch device, door opening and closing mechanism and box assembly

Abstract

The invention discloses a clutch device, a door opening and closing mechanism and a box assembly. The clutch device comprises a first transmission piece, a second transmission piece, a first clutch and a second clutch, the second transmission part and the first transmission part are coaxially arranged at an interval, and the second transmission part is used for being connected with the translation assembly; the linkage part and the first transmission part are arranged in a synchronous rotation mode, the linkage part can move towards the second transmission part to be meshed with the second transmission part, and the linkage part can also move back to the second transmission part to be separated from the second transmission part; the synchronizing part is located between the first transmission part and the second transmission part and rotates synchronously with the first transmission part, and before the linkage part moves to be meshed with the second transmission part, the synchronizing part can be pushed by the linkage part to abut against the second transmission part so as to drive the second transmission part to rotate; the push rod assembly can push the linkage piece to move to be meshed with or separated from the second transmission piece. Joint is achieved in a pre-synchronization mode, impact generated during joint can be effectively reduced, noise is low, efficiency is high, and the service life is long.

Description

Technical Field

[0001] The present application belongs to the technical field of smart home appliances, and specifically relates to a clutch device, a door opening and closing mechanism, and a box assembly. Background Art

[0002] The clutch is a common component in mechanical transmission, which can separate or engage the transmission system at any time. With the development of automation and intelligence of household appliances, clutches have begun to be used in some household appliances. For example, the automatic door opening and closing device is used between the box and the door of some existing household appliances to realize the automatic opening and closing of the door on the box. In order to facilitate users to freely choose to open and close the door manually or use the automatic door opening and closing function, the existing automatic door opening and closing device can also be provided with a clutch device to separate or engage the transmission system.

[0003] However, in environments such as home use, the current clutch device has a problem of high noise during operation. Summary of the invention

[0004] The present application provides a clutch device, a door opening and closing mechanism and a box assembly to solve the technical problem of high noise during the operation of the clutch device.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a clutch device, which is used to be arranged between a driving component and a translation component to realize the engagement and separation of the driving component and the translation component, the driving component has a rotating output shaft, and the clutch device includes: a first transmission member, which is used to be relatively fixed with the rotating output shaft and is coaxially arranged with the rotating output shaft; a second transmission member, which is coaxially arranged with the first transmission member and spaced apart, and the second transmission member is used to connect the translation component; a linkage member, which is arranged to rotate synchronously with the first transmission member, the linkage member can move toward the second transmission member to engage with the second transmission member, and the linkage member can also move away from the second transmission member to separate from the second transmission member; a synchronous member, which is located between the first transmission member and the second transmission member, and is arranged to rotate synchronously with the first transmission member, and before the linkage member moves to engage with the second transmission member, the synchronous member can be pushed by the linkage member to be pressed against the second transmission member to drive the second transmission member to rotate; a push rod assembly, which can push the linkage member to move to engage with or separate from the second transmission member.

[0006] According to one embodiment of the present application, the linkage member includes: at least one slider embedded in the outer periphery of the first transmission member, and the slider can be movably arranged on the first transmission member along the axial direction of the first transmission member, and the slider has a protrusion protruding outward; a coupling sleeve, which is sleeved on the outside of the first transmission member and is synchronously rotated with the first transmission member, and a matching groove matching the protrusion is opened on the inner side of the coupling sleeve; when the coupling sleeve moves toward the second transmission member, the coupling sleeve drives the slider to abut against the synchronous member to push the synchronous member to abut against the second transmission member, and the coupling sleeve can continue to move until it engages with the second transmission member.

[0007] According to one embodiment of the present application, the linkage member also includes an elastic member, which is arranged between the first transmission member and the slider to push the slider to be engaged in the matching groove; the protrusion has inclined surfaces on both axial sides of the first transmission member, and when the coupling sleeve moves to abut the slider against the second transmission member, the coupling sleeve continues to move to push the slider inward along the inclined surface to make way, and the coupling sleeve can move to engage with the second transmission member.

[0008] According to one embodiment of the present application, the first transmission member has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve is meshed with the first transmission member; and / or, the synchronizer has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve is meshed with the synchronizer; and / or, the second transmission member has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve can be moved to be sleeved on the outside of the second transmission member and meshed with the second transmission member.

[0009] According to an embodiment of the present application, an outer circumference of the first transmission member is provided with embedding grooves which are arranged in a one-to-one correspondence with the sliding blocks, and the embedding grooves extend axially along the first transmission member.

[0010] According to one embodiment of the present application, the first transmission member has an installation groove at one end facing the synchronizer, and the synchronizer's end facing the first transmission member is inserted into the installation groove; the synchronizer has at least one clamping groove at one end facing the first transmission member, and the clamping groove is arranged in a one-to-one correspondence with the slider, and the slider's end facing the synchronizer is located in the clamping groove.

[0011] According to one embodiment of the present application, an annular groove is opened on the outer periphery of the coupling sleeve, and the push rod assembly includes: a shift fork inserted in the annular groove of the coupling sleeve; and an electromagnetic push rod arranged on the shift fork, which can push the shift fork to move axially along the first transmission member.

[0012] To solve the above-mentioned technical problems, another technical solution adopted in the present application is: a door opening and closing mechanism, which is used to be arranged on a box assembly, and the box assembly includes a box, a door body and a hinge mechanism pivotally connecting the box and the door body; the door opening and closing mechanism includes a driving assembly, a translation assembly, a connecting rod and a clutch device as described above; the driving assembly, the translation assembly and the clutch device are arranged on one of the box and the door body, the first end of the connecting rod is rotatably arranged on the translation assembly, and the second end of the connecting rod is rotatably arranged on the other of the box and the door body or the hinge mechanism; wherein the translation assembly can drive the first end to move to realize the swing of the connecting rod, and then drive the door body to rotate relative to the box; the clutch device can realize the engagement or separation of the driving assembly and the translation assembly, and the driving assembly engaging the translation assembly can transmit power to the translation assembly.

[0013] According to one embodiment of the present application, the translation assembly includes: a screw rod, which is rotatably set on the box body or the door body, and the second transmission member is coaxially set on the end of the screw rod and relatively fixed to the screw rod; a screw block, which is threadedly connected to the screw rod, and the second end of the connecting rod is rotatably set on the screw block.

[0014] According to one embodiment of the present application, the screw rod is arranged at the top, bottom or inside of the box body, and the screw rod extends along the depth direction of the box body; or, the screw rod is arranged at the top, bottom or inside of the door body, and the screw rod extends along the width direction of the door body.

[0015] To solve the above technical problems, another technical solution adopted in the present application is: a box assembly, comprising: a box; a door body, used to open or close the box; a hinge mechanism, pivotally connecting the box and the door body; the opening and closing door mechanism as described above, wherein the opening and closing door mechanism is arranged on the box and the door body, and is used to drive the door body to rotate relative to the box.

[0016] According to one embodiment of the present application, the hinge mechanism includes a box fixing seat arranged on the box body, a door body fixing seat arranged on the door body, and a connecting rod assembly hingedly connecting the box fixing seat and the door body fixing seat; the second end of the connecting rod is rotatably arranged on the connecting rod assembly.

[0017] The beneficial effects of the present application are as follows: the clutch device of the present application is provided with a synchronization member, and before the linkage member is engaged with the second transmission member, the rotation speed of the second transmission member is gradually increased by the synchronization member, thereby reducing the rotation speed difference between the second transmission member and the linkage member, realizing pre-synchronization of the second transmission member and the linkage member, effectively reducing the collision and noise when the second transmission member and the linkage member are engaged, and extending the service life of the parts; and, before the linkage member is engaged with the second transmission member, the second transmission member has been driven to rotate by the synchronization member, and part of the power can be transmitted to the translation assembly, thereby improving the engagement efficiency of the drive assembly and the translation assembly; in addition, the linkage member and the second transmission member are engaged by meshing, and the drive is more stable. The clutch device of the present application has the advantages of high engagement efficiency, low noise, and long service life, and the clutch device has a simple and compact structure, and is suitable for use in a compact installation environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a box assembly according to an embodiment of the present application;

[0020] Figure 2 is a schematic top view of a box assembly according to an embodiment of the present application, wherein the box assembly is in a closed state;

[0021] Figure 3 It is a top view schematic diagram of a box assembly according to an embodiment of the present application, wherein the box assembly is in an open state.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of a door opening and closing mechanism according to an embodiment of the present application;

[0023] Figure 5 is a schematic diagram of the three-dimensional structure of a clutch device according to an embodiment of the present application. At this time, the clutch device is in a disengaged state;

[0024] Figure 6 is a schematic cross-sectional structural diagram of a clutch device according to an embodiment of the present application;

[0025] Figure 7 is a schematic cross-sectional structure diagram of a clutch device according to an embodiment of the present application from another perspective;

[0026] Figure 8 is a schematic diagram of the exploded structure of a clutch device according to an embodiment of the present application;

[0027] Fig. 9It is a schematic diagram of the exploded structure of the clutch device of one embodiment of the present application from another perspective. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, 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 is to 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 structures related to the present application are shown in the accompanying drawings, rather than all structures. 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.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] With the development of automation and intelligence of household appliances, some existing household appliances have automatic door opening and closing devices between the cabinet and the door to achieve automatic opening and closing of the door on the cabinet.

[0031] See also Figure 1 , Figure 1 It is a three-dimensional structural schematic diagram of a box assembly according to an embodiment of the present application.

[0032] An embodiment of the present application provides a box assembly 100. The box assembly 100 includes a box 110, a door 120, a hinge mechanism 130, and a door opening and closing mechanism 200. The door 120 is used to open or close the box 110. The hinge mechanism 130 pivotally connects the box 110 and the door 120. The door opening and closing mechanism 200 is arranged on the box 110 and the door 120, and is used to drive the door 120 to rotate relative to the box 110. The box assembly 100 of the present application can realize automatic door opening and closing functions, manual door opening and closing, and power-assisted door opening and closing functions during manual operation.

[0033] 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, 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.

[0034] The door opening and closing mechanism 200 in the present application can be used on a box assembly 100 having one or more door bodies 120. The door opening and closing mechanism 200 can be installed on the box assembly 100 individually or in combination.

[0035] The door opening and closing mechanism 200 in the present application can be installed at the top, bottom or inside of the box body 110; or, the door opening and closing mechanism 200 can be installed at the top, bottom or inside of the door body 120.

[0036] Please continue reading Figure 2 and Figure 3 , Figure 2 is a schematic top view of a box assembly according to an embodiment of the present application, wherein the box assembly is in a closed state; Figure 3 It is a schematic top view of a box assembly according to an embodiment of the present application, wherein the box assembly is in an open state.

[0037] The following is a detailed description of the embodiment of the door opening and closing mechanism 200:

[0038] An embodiment of the present application provides a door opening and closing mechanism 200, which includes a driving assembly 210, a translation assembly 220, a linkage rod 230, and a clutch device 300. The driving assembly 210, the translation assembly 220, and the clutch device 300 are disposed in one of the box body 110 and the door body 120. The linkage rod 230 includes a first end 231 and a second end 232 that are disposed opposite to each other, the first end 231 of the linkage rod 230 is rotatably disposed in the translation assembly 220, and the second end 232 of the linkage rod 230 is rotatably disposed in the other of the box body 110 and the door body 120 or rotatably disposed in the hinge mechanism 130.

[0039] By setting the above-mentioned linkage rod 230, the translation assembly 220 drives the first end 231 of the linkage rod 230 to move, so that the linkage rod 230 can swing, and the door body 120 can be synchronously subjected to force and rotate relative to the box body 110. 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. The swing of the linkage rod 230 drives the door body 120 to rotate relative to the box body 110, thereby realizing the automatic door opening and closing function. When the driving assembly 210 is separated from the translation assembly 220, during the process of the door body 120 being subjected to force and rotating, the first end 231 of the linkage rod 230 can move freely on the translation assembly 220, thereby realizing manual door opening and closing. By setting the door opening and closing mechanism 200, the user can freely choose to manually open and close the door or use the automatic door opening and closing function.

[0040] By setting the door opening and closing mechanism 200, the automatic door opening and closing function can be realized, and the automatic door opening and closing process is as follows: the door opening command is obtained, the door opening and closing mechanism 200 is powered, 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 linkage 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. The door closing command is obtained, the driving assembly 210 transmits power to the translation assembly 220, the translation assembly 220 can drive the first end 231 of the linkage rod 230 to move in the opposite direction, 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.

[0041] By setting the door opening and closing mechanism 200, the power-assisted door opening and closing function during manual operation can also be realized. The power-assisted door opening and closing function is as follows: when the user manually operates the door opening and closing, the door opening and closing mechanism 200 is powered, the clutch device 300 engages the drive assembly 210 and the translation assembly 220, the drive assembly 210 transmits power to the translation assembly 220, and the translation assembly 220 can drive the first end 231 of the linkage rod 230 to move, thereby realizing power-assisted door opening and closing. Since the user adds manual operation at this time, in order to improve the safety of use, if there is abnormal resistance during the power-assisted door opening and closing process due to manual operation or other obstacles, the clutch device 300 separates the drive assembly 210 and the translation assembly 220.

[0042] The door opening and closing mechanism 200 of the present application can realize the automatic door opening and closing function and the power-assisted door opening and closing function during manual operation, realizing automation and intelligence. In some box assemblies 100 that are provided with an adsorption structure between the box body 110 and the door body 120 or that maintain internal and external negative pressure, the door opening and closing mechanism 200 can make it easier for the user to open the door body 120. The door opening and closing mechanism 200 can also ensure that the door body 120 is effectively closed to improve the sealing performance.

[0043] Since the door opening and closing mechanism 200 has a clutch device 300, in scenarios such as power outages, the clutch device 300 can place the drive assembly 210 and the translation assembly 220 in a separated state, and the first end 231 of the connecting rod 230 can move on the translation assembly 220 as the door body 120 rotates, and the user can freely open or close the door body 120.

[0044] In some embodiments, the driving assembly 210, the translation assembly 220 and the clutch device 300 are disposed on the door body 120, the first end 231 of the linkage rod 230 is rotatably disposed on the translation assembly 220, and the second end 232 of the linkage rod 230 is rotatably disposed on the box body 110 or the hinge mechanism 130. The configuration of the linkage rod 230 and the hinge position of the second end 232 thereof can be adjusted according to the trajectory of the door body 120 during the opening process to better apply force to the door body 120 and avoid interference. For example, the linkage rod 230 can be linear.

[0045] In some other embodiments, the driving assembly 210, the translation assembly 220 and the clutch device 300 are disposed on the housing 110, the first end 231 of the linkage rod 230 is rotatably disposed on the translation assembly 220, and the second end 232 of the linkage rod 230 is rotatably disposed on the door body 120 or the hinge mechanism 130. The configuration of the linkage rod 230 and the hinge position of the second end 232 thereof can be adjusted according to the trajectory of the door body 120 during the opening process to better apply force to the door body 120 and avoid interference. For example, the linkage rod 230 can be arc-shaped.

[0046] In some embodiments, the hinge mechanism 130 is a multi-link hinge. The hinge mechanism 130 includes a box body fixing seat 131 disposed on the box body 110, a door body fixing seat 132 disposed on the door body 120, and a connecting rod assembly 133 that hinges the door body fixing seat 132 and the box body fixing seat 131. The second end 232 of the linkage rod 230 can be rotatably disposed on the connecting rod assembly 133, and at this time, the linkage rod 230 can reduce or avoid interference with the connecting rod assembly 133 during the rotation of the door body 120. The door opening and closing mechanism 200 has a reasonable structural design and layout, and can be used for the box body assembly 100 for opening and closing doors at large angles, and is particularly suitable for automatic opening and closing doors of embedded home appliances and furniture products.

[0047] Of course, the second end 232 of the linkage rod 230 can also be rotatably disposed on the box body fixing seat 131 or the door body fixing seat 132 according to actual conditions.

[0048] See also Figure 4 , Figure 4 It is a three-dimensional structural schematic diagram of a door opening and closing mechanism according to an embodiment of the present application.

[0049] Specifically, the translation assembly 220 includes a screw rod 221 and a screw block 222. The screw rod 221 is rotatably disposed on the housing 110 or the door body 120, the screw block 222 is threadedly connected to the screw rod 221, and the second end 232 of the linkage rod 230 is rotatably disposed on 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 screw rod 221 to rotate, and the screw block 222 can achieve translation on the screw rod 221, so as to drive the second end 232 of the linkage rod 230 to move. When the clutch device 300 separates 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 and closed, the screw rod 221 is in a state of free rotation, and the linkage rod 230 can drive the screw block 222 to translate on the screw rod 221.

[0050] When the translation assembly 220 is disposed at the top or bottom of the door body 120, the screw rod 221 can be extended along the width direction of the door body 120. 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 screw rod 221 can also be extended along other directions.

[0051] When the translation assembly 220 is disposed at the top or bottom of the box 110, the screw rod 221 can be extended along the depth direction of the box 110. The translation assembly 220 can be disposed on one side of the box 110 close to the hinge mechanism 130 of the corresponding door body 120, thereby shortening the driving stroke of the linkage rod 230, making the overall structure of the door opening and closing mechanism 200 more compact and occupying less space. Of course, the screw rod 221 can also be extended along other directions.

[0052] Specifically, the number of heads, tooth shape, and length of the screw rod 221 can be designed according to actual needs. The screw rod 221 is a non-self-locking structure. The screw rod 221 can be supported by providing support sleeves 2221 at both ends.

[0053] In other embodiments, the translation assembly 220 may also be other driving structures that can drive the second end 232 of the linkage rod 230 to translate.

[0054] The inventor of the present application has found through long-term research that the clutch device in the existing scheme usually directly connects the driving component with the transmission element. When the driving component and the transmission element are engaged, especially when the gear sleeves are engaged in a meshing manner, there is a large impact, which in turn generates noise. The clutch device 300 in the present application can solve the above problem.

[0055] See also Figures 5 to 7 , Figure 5 is a schematic diagram of the three-dimensional structure of a clutch device according to an embodiment of the present application; Figure 6 is a schematic cross-sectional structural diagram of a clutch device according to an embodiment of the present application; Figure 7It is a schematic cross-sectional structure diagram of a clutch device of an embodiment of the present application from another perspective.

[0056] The clutch device 300 in the present application is described below in conjunction with an embodiment:

[0057] An embodiment of the present application provides a clutch device 300, which is used to be arranged between the drive assembly 210 and the translation assembly 220 to achieve the engagement and separation of the drive assembly 210 and the translation assembly 220. The drive assembly 210 has a rotation output shaft 211, and the clutch device 300 can transmit the rotation driving force of the drive assembly 210 to the translation assembly 220. The clutch device 300 includes a first transmission member 310, a second transmission member 320, a linkage member 330, a synchronization member 340 and a push rod assembly 350. The first transmission member 310 is used to be relatively fixed with the rotation output shaft 211, and the first transmission member 310 is coaxially arranged with the rotation output shaft 211. The second transmission member 320 is coaxially arranged with the first transmission member 310 and spaced apart, and the second transmission member 320 is used to connect the translation assembly 220, and the second transmission member 320 can transmit power to the translation assembly 220. The linkage member 330 is arranged to rotate synchronously with the first transmission member 310. The linkage member 330 can move toward the second transmission member 320 to mesh with the second transmission member 320, thereby transmitting the rotational power of the first transmission member 310 to the second transmission member 320, and the drive assembly 210 and the translation assembly 220 are in an engaged state; the linkage member 330 can also move away from the second transmission member 320 to separate from the second transmission member 320, and the drive assembly 210 and the translation assembly 220 are in a separated state. The push rod assembly 350 can push the linkage member 330 to move to mesh with or separate from the second transmission member 320.

[0058] The clutch device 300 of the present application is particularly provided with a synchronous member 340, which is located between the first transmission member 310 and the second transmission member 320 and is arranged to rotate synchronously with the first transmission member 310. Before the linkage member 330 moves to engage with the second transmission member 320, the synchronous member 340 can be pushed by the linkage member 330 to be tightly pressed against the second transmission member 320, so as to drive the second transmission member 320 to rotate.

[0059] After the drive assembly 210 is energized, the drive assembly 210 drives the rotating output shaft 211 to output rotation, and drives the first transmission member 310, the linkage member 330 and the synchronous member 340 to rotate synchronously, and the push rod assembly 350 pushes the linkage member 330 to move toward the second transmission member 320. Before the linkage member 330 is engaged with the second transmission member 320, the linkage member 330 pushes the synchronous member 340 assembly to press against the second transmission member 320. Under the continuous push of the push rod assembly 350, the synchronous member 340 drives the second transmission member 320 to rotate through friction, and the speed of the second transmission member 320 gradually increases. The push rod assembly 350 continues to push the linkage member 330 to move until the linkage member 330 is stably engaged with the second transmission member 320, and the second transmission member 320 and the first transmission member 310 are stably engaged through the linkage member 330, and the clutch device 300 engages the drive assembly 210 and the translation assembly 220. The push rod assembly 350 pushes the linkage member 330 to move away from the second transmission member 320 , the linkage member 330 is separated from the second transmission member 320 , and the clutch device 300 separates the driving assembly 210 from the translation assembly 220 .

[0060] Because the rotation speed of the second transmission member 320 is gradually increased by the synchronization member 340 before the linkage member 330 is engaged with the second transmission member 320, the rotation speed difference between the second transmission member 320 and the linkage member 330 is reduced, and the second transmission member 320 and the linkage member 330 are pre-synchronized, which effectively reduces the collision and noise when the second transmission member 320 and the linkage member 330 are engaged, and the service life of the parts is extended; and, before the linkage member 330 is engaged with the second transmission member 320, the second transmission member 320 has been driven to rotate by the synchronization member 340, and can transmit part of the power to the translation assembly 220, thereby improving the engagement efficiency of the drive assembly 210 and the translation assembly 220; in addition, the linkage member 330 is engaged with the second transmission member 320 in an engaging manner, and the drive is more stable. The clutch device 300 of the present application has the advantages of high engagement efficiency, low noise and long service life, and the clutch device 300 has a simple and compact structure and is suitable for use in a compact installation environment. The door switch mechanism 200 using the clutch device 300 of the present application is also more compact in structure, reducing the space occupied by the box assembly 100.

[0061] The first transmission member 310 is provided with a non-center-symmetrical special-shaped hole in the axial direction, and the rotating output shaft 211 is inserted into the special-shaped hole, so that the rotating output shaft 211 and the first transmission member 310 are relatively fixed. The rotating output shaft 211 can drive the first transmission member 310 to rotate synchronously. The first transmission member 310 can also be provided with a fastening hole 314 in the radial direction, through which the fastener is inserted to further fix the first transmission member 310 and the rotating output shaft 211.

[0062] Please continue reading Figures 5 to 9 , Figure 8 is a schematic diagram of the exploded structure of a clutch device according to an embodiment of the present application; Fig. 9 It is a schematic diagram of the exploded structure of the clutch device of one embodiment of the present application from another perspective.

[0063] In some embodiments, the linkage member 330 includes a coupling sleeve 332 and at least one slider 331. The slider 331 is embedded in the outer periphery of the first transmission member 310, and the slider 331 can be movably arranged on the first transmission member 310 along the axial direction of the first transmission member 310. The slider 331 has a protrusion 3331 protruding outward. The coupling sleeve 332 is sleeved on the outside of the first transmission member 310, and the coupling sleeve 332 is rotated synchronously with the first transmission member 310. A matching groove 3321 matching the protrusion 3331 is provided on the inner side of the coupling sleeve 332. Since the slider 331 is embedded in the outer periphery of the first transmission member 310, and the slider 331 cooperates with the matching groove 3321 on the inner side of the coupling sleeve 332, the rotation of the first transmission member 310 can be transmitted to the coupling sleeve 332. When the coupling sleeve 332 moves toward the second transmission member 320 , the coupling sleeve 332 drives the slider 331 to abut against the synchronous member 340 , so as to push the synchronous member 340 to abut against the second transmission member 320 , so as to drive the second transmission member 320 to rotate and realize pre-synchronization.

[0064] Specifically, one, two, three or more sliders 331 are provided. When a plurality of sliders 331 are provided, the plurality of sliders 331 are arranged at intervals along the circumferential direction of the first transmission member 310 .

[0065] Further, the linkage member 330 also includes an elastic member 333, which is arranged between the first transmission member 310 and the slider 331 to push the slider 331 to be engaged in the matching groove 3321. The movement of the coupling sleeve 332 toward the second transmission member 320 can drive the slider 331 to press against the second transmission member 320. The protrusion 3331 has inclined surfaces 3332 on both axial sides of the first transmission member 310. When the coupling sleeve 332 moves until the slider 331 abuts against the second transmission member 320, the coupling sleeve 332 continues to move and can push the slider 331 to move inward to make way through the inclined surface 3332, and the coupling sleeve 332 can continue to move until it is engaged with the second transmission member 320.

[0066] By setting the elastic member 333 to cooperate with the inclined surface 3332 of the protrusion 3331, the coupling sleeve 332 can drive the slider 331 to move, and when the slider 331 abuts against the second transmission member 320, the coupling sleeve 332 can continue to move forward to engage with the second transmission member 320. In other embodiments, the slider 331 can also cooperate with other yielding methods to allow the second transmission member 320 to continue to move toward the second transmission member 320 to engage with the second transmission member 320.

[0067] In other embodiments, the linkage member 330 may include a coupling sleeve 332, an intermediate gear and an elastic support member. The elastic support member is disposed between the intermediate gear and the synchronous member 340, and the two ends are respectively fixed to the intermediate gear and the synchronous member 340, the synchronous member 340 can rotate synchronously with the intermediate gear, and when the elastic support member is compressed, the intermediate gear can approach the synchronous member 340. The intermediate gear can move axially relative to the coupling sleeve 332 and the first transmission member 310. The inner side of the intermediate gear is meshed with the first transmission member 310, and the outer side of the intermediate gear is meshed with the inner side of the coupling sleeve 332, so that the coupling sleeve 332 can rotate synchronously with the first transmission member. The coupling sleeve 332 can also push the intermediate gear to move toward the second transmission member 320. When the coupling sleeve 332 moves toward the second transmission member 320, the coupling sleeve 332 can drive the intermediate gear to approach the synchronous member 340, so as to push the synchronous member 340 to abut against the second transmission member 320, thereby driving the second transmission member 320 to rotate, and realizing pre-synchronization. When the coupling sleeve 332 continues to move, the elastic support member is compressed, the intermediate gear approaches the synchronous member 340 , and the coupling sleeve 332 can go over the synchronous member 340 and mesh with the second transmission member 320 , thereby achieving engagement of the clutch device 300 .

[0068] Specifically, the end of the coupling sleeve 332 away from the second transmission member 320 has a convex edge that abuts against the end of the intermediate gear inwardly. When the coupling sleeve 332 moves toward the second transmission member 320, it can drive the intermediate gear to move synchronously; when the coupling sleeve 332 retreats away from the second transmission member 320, the elastic support member can push the second transmission member 320 away from the synchronous member 340. In some embodiments, the first transmission member 310 has external spline teeth, the coupling sleeve 332 has internal spline teeth, the coupling sleeve 332 is meshed with the first transmission member 310, and during the movement of the first transmission member 310, the coupling sleeve 332 and the first transmission member 310 always maintain a meshing state, and the coupling sleeve 332 can maintain synchronous rotation with the first transmission member 310. Of course, the coupling sleeve 332 can also maintain synchronous rotation with the first transmission member 310 in other ways.

[0069] In some embodiments, the synchronizer 340 has external spline teeth, the coupling sleeve 332 has internal spline teeth, and the coupling sleeve 332 can mesh with the synchronizer 340. When the coupling sleeve 332 moves to the outside of the synchronizer 340, the coupling sleeve 332 can drive the synchronizer 340 to rotate synchronously.

[0070] In some embodiments, the second transmission member 320 has external spline teeth, and the coupling sleeve 332 has internal spline teeth. The coupling sleeve 332 can be moved to be sleeved on the outside of the second transmission member 320, and mesh with the second transmission member 320, thereby driving the second transmission member 320 to rotate synchronously. In other embodiments, the opposite side end faces of the coupling sleeve 332 and the second transmission member 320 can also have matching tooth structures, and when the coupling sleeve 332 moves to abut against the second transmission member 320, the coupling sleeve 332 meshes with the second transmission member 320. Of course, the coupling sleeve 332 can also mesh with the second transmission member 320 in other ways.

[0071] External spline teeth are provided on the outer peripheries of the synchronizer 340, the first transmission member 310 and the second transmission member 320, and when they can mesh with the coupling sleeve 332, the tooth profiles of the synchronizer 340, the first transmission member 310 and the second transmission member 320 are arranged in a consistent manner, and the coupling sleeve 332 can move smoothly in the axial direction of the first transmission member 310, thereby realizing power transmission.

[0072] In order to achieve stable movement of the slider 331 in the axial direction of the first transmission member 310, an embedding groove 311 corresponding to the slider 331 is provided on the outer circumference of the first transmission member 310. The embedding groove 311 extends through the axial direction of the first transmission member 310, and the slider 331 moves in the embedding groove 311. The coupling sleeve 332 can limit the slider 331 in the embedding groove 311. A retaining ring 360 is provided on the side of the first transmission member 310 facing away from the synchronizer 340, and the retaining ring 360 prevents the slider 331 from being separated from the embedding groove 311.

[0073] A receiving groove 313 extending radially along the first transmission member 310 may be opened in the embedding groove 311, and a coupling groove 3333 is opened on the side of the slider 331 facing the elastic member 333. One end of the elastic member 333 abuts against the receiving groove 313, and the other end abuts against the coupling groove 3333, thereby achieving stable installation of the elastic member 333.

[0074] In order to ensure that the synchronizer 340 and the first transmission member 310 are coaxial and rotate synchronously, the first transmission member 310 has a mounting groove 312 at one end facing the synchronizer 340. The end of the synchronizer 340 facing the first transmission member 310 is inserted into the mounting groove 312. The synchronizer 340 and the first transmission member 310 are arranged coaxially. The synchronizer 340 has at least one clamping groove 341 at one end facing the first transmission member 310, and the clamping groove 341 is arranged one-to-one with the slider 331. The end of the slider 331 facing the synchronizer 340 is located in the clamping groove 341. By arranging the end of the slider 331 facing the synchronizer 340 in the clamping groove 341, when the slider 331 rotates with the first transmission member 310, the slider 331 drives the synchronizer 340 to rotate synchronously. At this time, the synchronizer 340 and the first transmission member 310 are arranged coaxially and rotate synchronously. Of course, in other embodiments, the synchronizer 340 and the first transmission member 310 can also be kept coaxial and rotate synchronously through other structures.

[0075] In some embodiments, see Figure 7 and Figure 8 , the end of the synchronizer 340 facing the second transmission member 320 has an axial groove 342. The end of the second transmission member 320 facing the synchronizer 340 has a wedge-shaped protrusion 321. The wedge-shaped protrusion 321 is inserted into the axial groove 342. Therefore, when the synchronizer 340 moves toward the second transmission member 320, the wedge-shaped protrusion 321 of the second transmission member 320 is gradually clamped in the axial groove 342 of the synchronizer 340, and the synchronizer 340 drives the second transmission member 320 to gradually increase the speed. The synchronizer 340 is docked with the wedge-shaped protrusion 321 of the second transmission member 320, which can ensure the clamping force between the synchronizer 340 and the second transmission member 320, and the synchronizer 340 can drive the second transmission member 320 to rotate, so as to realize the pre-synchronization of the second transmission member 320 and the coupling sleeve 332.

[0076] In addition, the second transmission member 320 is used to dock with the input member of the translation assembly 220. When the translation assembly 220 includes a screw rod 221 and a screw block 222, the second transmission member 320 is coaxially fixed to the end of the screw rod 221. The second transmission member 320 may be provided with a square hole, one end of the screw rod 221 is square and inserted into the square hole, and the second transmission member 320 may rotate synchronously with the screw rod 221 to achieve power transmission.

[0077] In some embodiments, an annular groove 3322 is formed on the outer periphery of the coupling sleeve 332, and the push rod assembly 350 includes a shift fork 351 and an electromagnetic push rod 352. The shift fork 351 is inserted into the annular groove 3322 of the coupling sleeve 332, and the shift fork 351 can push the coupling sleeve 332 to move, and the coupling sleeve 332 can rotate relative to the shift fork 351. The electromagnetic push rod 352 is disposed on the shift fork 351, and is used to push the shift fork 351 to move along the axial direction of the first transmission member 310, so that the coupling sleeve 332 can move to engage with or disengage from the second transmission member 320.

[0078] The clutch device 300 of the present application can be used for the door opening and closing mechanism 200 in any of the above-mentioned embodiments, and the door opening and closing mechanism 200 of the present application can be used for the box assembly 100 in any of the above-mentioned embodiments. The clutch device 300 of the present application adopts the form of pre-synchronization to achieve engagement, which can effectively reduce the impact generated during engagement, has high engagement efficiency, low noise, and long service life. The clutch device 300 has a simple and compact structure and a reasonable layout. The door opening and closing mechanism 200 using the clutch device 300 has a compact structure and does not occupy the space of the box assembly 100. It can be used for automatic door opening and closing of a large-angle box assembly 100, and is particularly suitable for automatic door opening and closing of an embedded box assembly 100, solving the problem of automatic door opening and closing in a compact installation environment. The box assembly 100 using the door opening and closing mechanism 200 of the present application can realize the automatic door opening and closing function, manual door opening and closing, and the power-assisted door opening and closing function during manual operation.

[0079] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components are absolutely horizontal or vertical, but can be slightly tilted; the terms "parallel", "vertical" and the like do not mean that the components are absolutely parallel or vertical, but can form a certain angle deviation. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present application is usually placed when used, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0080] The above description 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 present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A clutch device, characterized in that: It is used to be arranged between the driving assembly and the translation assembly to realize the engagement and separation of the driving assembly and the translation assembly, the driving assembly has a rotating output shaft, and the clutch device includes: A first transmission member, used to be fixed relative to the rotation output shaft and coaxially arranged with the rotation output shaft; a second transmission member, coaxially arranged with the first transmission member and spaced apart from the first transmission member, the second transmission member being used to connect the translation assembly; A linkage member is arranged to rotate synchronously with the first transmission member, the linkage member can move toward the second transmission member to engage with the second transmission member, and the linkage member can also move away from the second transmission member to separate from the second transmission member; a synchronous member, located between the first transmission member and the second transmission member, and arranged to rotate synchronously with the first transmission member; before the linkage member moves to engage with the second transmission member, the synchronous member can be pushed by the linkage member to be tightly pressed against the second transmission member, so as to drive the second transmission member to rotate; The push rod assembly can push the linkage member to move to engage with or disengage from the second transmission member.

2. The clutch device according to claim 1, characterized in that: The linkage comprises: At least one slider is embedded in the outer periphery of the first transmission member, and the slider can be movably arranged on the first transmission member along the axial direction of the first transmission member, and the slider has a protruding portion protruding outward; A coupling sleeve is sleeved on the outside of the first transmission member and is arranged to rotate synchronously with the first transmission member. A matching groove matching the protrusion is opened on the inner side of the coupling sleeve. When the coupling sleeve moves toward the second transmission member, the coupling sleeve drives the slider to abut against the synchronous member to push the synchronous member to abut against the second transmission member, and the coupling sleeve can continue to move until it engages with the second transmission member.

3. The clutch device according to claim 2, characterized in that: The linkage member also includes an elastic member, which is arranged between the first transmission member and the slider to push the slider to be engaged in the matching groove; the protrusion has inclined surfaces on both axial sides of the first transmission member, and when the coupling sleeve moves to abut the slider against the second transmission member, the coupling sleeve continues to move and can push the slider inward to make way along the inclined surface, and the coupling sleeve can move to engage with the second transmission member.

4. The clutch device according to claim 2, characterized in that: The first transmission member has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve is meshed with the first transmission member; and / or, the synchronizer has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve is meshed with the synchronizer; and / or, the second transmission member has external spline teeth, the coupling sleeve has internal spline teeth, and the coupling sleeve can be moved to be sleeved on the outside of the second transmission member and meshed with the second transmission member.

5. The clutch device according to claim 2, characterized in that: The outer circumference of the first transmission member is provided with embedding grooves which are arranged in a one-to-one correspondence with the sliding blocks, and the embedding grooves extend axially along the first transmission member.

6. The clutch device according to claim 2, characterized in that: The first transmission member has an installation groove at one end facing the synchronizer, and the synchronizer has an end facing the first transmission member inserted into the installation groove; the synchronizer has at least one card slot at one end facing the first transmission member, and the card slots are arranged in a one-to-one correspondence with the slider, and the slider has an end facing the synchronizer located in the card slot.

7. The clutch device according to claim 1, characterized in that: The synchronizer has an axial groove at one end facing the second transmission member, and the second transmission member has a wedge-shaped protrusion at one end facing the synchronizer, and the wedge-shaped protrusion is inserted into the axial groove.

8. The clutch device according to claim 2, characterized in that: The outer circumference of the coupling sleeve is provided with an annular groove, and the push rod assembly comprises: A shift fork, inserted into the annular groove of the coupling sleeve; The electromagnetic push rod is arranged on the shift fork and can push the shift fork to move axially along the first transmission member.

9. A door opening and closing mechanism, characterized in that: Used to be arranged on a box assembly, the box assembly includes a box body, a door body and a hinge mechanism pivotally connecting the box body and the door body; The door opening and closing mechanism comprises a driving assembly, a translation assembly, a linkage rod and a clutch device as described in any one of claims 1 to 8 above; the driving assembly, the translation assembly and the clutch device are arranged on one of the box body and the door body, the first end of the linkage rod is rotatably arranged on the translation assembly, and the second end of the linkage rod is rotatably arranged on the other of the box body and the door body or the hinge mechanism; Among them, the translation assembly can drive the first end to move to realize the swing of the connecting rod, and then drive the door body to rotate relative to the box body; the clutch device can realize the engagement or separation of the driving assembly and the translation assembly, and the driving assembly engaging the translation assembly can transmit power to the translation assembly.

10. The door opening and closing mechanism according to claim 9, characterized in that: The translation assembly comprises: A screw rod is rotatably arranged on the box body or the door body, and the second transmission member is coaxially arranged on the end of the screw rod and fixed relative to the screw rod; The screw block is threadedly connected with the screw rod, and the second end of the linkage rod is rotatably disposed on the screw block.

11. The door opening and closing mechanism according to claim 10, characterized in that: The screw rod is arranged at the top, bottom or inside of the box body, and the screw rod extends along the depth direction of the box body; Alternatively, the screw rod is arranged at the top, bottom or inside of the door body, and the screw rod extends along the width direction of the door body.

12. A box assembly, characterized in that: include: Box; A door body, used for opening or closing the box body; A hinge mechanism pivotally connecting the box body and the door body; The door opening and closing mechanism as described in any one of claims 9 to 11, wherein the door opening and closing mechanism is arranged on the box body and the door body, and is used to drive the door body to rotate relative to the box body.

13. The box assembly according to claim 12, characterized in that: The hinge mechanism includes a box fixing seat arranged on the box body, a door fixing seat arranged on the door body, and a connecting rod assembly hingedly connecting the box fixing seat and the door fixing seat; the second end of the connecting rod is rotatably arranged on the connecting rod assembly.

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