Door opening device and electrical equipment

Abstract

The utility model discloses a door opening device and electrical equipment. The door opening device comprises a driving assembly arranged on the main body; the two pushing assemblies are arranged on the main body and used for driving the door body to act; the two incomplete gears are engaged with the driving assembly and act on the two pushing assemblies correspondingly; in the process that the driving assembly drives the two incomplete gears to rotate, one of the two incomplete gears is meshed with the corresponding pushing assembly so as to drive the corresponding pushing assembly to act, and the other one of the two incomplete gears is in power separation with the corresponding pushing assembly.

Description

Technical Field

[0001] This application belongs to the technical field of electrical appliances, and particularly relates to an opening device and an electrical appliance. Background Art

[0002] With the improvement of living standards, electrical appliances such as refrigerators, dishwashers, and disinfection cabinets have been widely and deeply integrated into people's lives. In order to maintain the sealing performance of the above-mentioned electrical appliances, an adsorption structure is usually provided between the cabinet body and the door body, or the internal and external negative pressures are maintained to stably fix the door body on the cabinet body.

[0003] Currently, an opening is generally provided on the cabinet body, and a door body is provided at the opening. The door body rotates relative to the cabinet body to open or close the opening. People open the opening by rotating the door body to obtain items from the cabinet body or put items into the cabinet body. In some cases, it is difficult to open the door. For example, when people are holding items that are about to be put into the refrigerator, they cannot open the refrigerator door. For example, when people need to open the refrigerator door to get ingredients during cooking, when they open the refrigerator door with their greasy hands, the refrigerator door will be soiled. Summary of the Utility Model

[0004] To solve the above technical problems, the present utility model provides an opening device and an electrical appliance, aiming to at least solve the technical problems to a certain extent.

[0005] The technical solution of the present utility model is as follows:

[0006] An opening device, characterized in that it is used to open a door body provided on a main body, and the opening device includes: a driving component provided on the main body; two pushing components provided on the main body for driving the door body to move; two incomplete gears, both meshing with the driving component and respectively acting on the two pushing components; wherein, during the process of the driving component driving the two incomplete gears to rotate, one of the two incomplete gears meshes with the corresponding pushing component to drive the corresponding pushing component to move, and the other is power-separated from the corresponding pushing component.

[0007] Since the driving component is provided on the main body, the driving component is supported by the main body. Since two pushing components are provided on the main body and used to drive the door body to move, both of the two incomplete gears are engaged with the driving component and respectively act on the two pushing components. During the process of the driving component driving the two incomplete gears to rotate, one of the two incomplete gears is engaged with the corresponding pushing component to drive the corresponding pushing component to move, and the other is power-separated from the corresponding pushing component. Therefore, during the process of the incomplete gear driving the corresponding pushing component to move, the pushing component can push the corresponding door body to open the door body automatically. Under the condition that the user often holds objects in both hands or has dirty hands, the user does not need to use hands to pull open the door body, which liberates the user's hands, saves time and effort, and improves the user experience.

[0008] A driving component can respectively transmit power to two pushing components, so that the two pushing components can respectively open the corresponding door bodies, realizing that one driving component can open two door bodies. Compared with the method of using two sets of independent door-opening devices to open two door bodies respectively, the number of components is reduced, the cost is reduced, and the manufacturing difficulty is also reduced.

[0009] In some embodiments, both of the two incomplete gears are externally engaged with the output gear of the driving component; when the two incomplete gears are in the initial state, the two incomplete gears are symmetrically arranged so that the rotation directions of the two incomplete gears are the same.

[0010] In some embodiments, a part of the circumferential surface of the incomplete gear has first teeth to form a toothed surface, and the rest of the circumferential surface of the incomplete gear is a smooth surface to form a toothless surface, and the toothed surface and the toothless surface are connected end to end; wherein, the arc length of the toothed surface is greater than the arc length of the toothless surface. When the two incomplete gears are in the initial state, the area of the toothless surface close to the toothed surface is power-separated from the pushing component, so as to transmit the power of the driving component to the corresponding pushing component through the incomplete gear.

[0011] In some embodiments, the pushing component includes: a driven gear engaged with or power-separated from the incomplete gear; a linkage gear connected to the driven gear; a rack engaged with the linkage gear; and a pushing member connected to the second rack at an angle to push the door.

[0012] In some embodiments, the driven gear includes a body, and protrusions and a plurality of second teeth provided on the circumferential surface of the body; wherein, during the driving assembly driving the two incomplete gears to rotate, one of the two incomplete gears is in transmission connection with the second teeth of the corresponding driven gear to drive the corresponding pushing assembly to act, and the other is power-separated from the protrusions of the corresponding driven gear, so as to ensure that when the pushing assembly is power-separated from the incomplete gear, the incomplete gear will not drive the corresponding driven gear to act.

[0013] In some embodiments, when the incomplete gear is in the initial state, an avoidance opening is provided at a position opposite to the protrusion to ensure that the incomplete gear can smoothly mesh with the corresponding driven gear.

[0014] In some embodiments, the door opening device further includes: two first microswitches, provided on the main body and respectively located at the starting points of the strokes of the two pushing assemblies; two second microswitches, provided on the main body and respectively located at the ending points of the strokes of the two pushing assemblies to control the extension or retraction of the two pushing assemblies.

[0015] In some embodiments, the first microswitch is located on the rotation path of the linkage gear, and the second microswitch is located on the pushing path of the pusher to ensure that the first microswitch and the second microswitch can be triggered.

[0016] Based on the same inventive concept, the present utility model further provides an electrical appliance including the door opening device described above.

[0017] In some embodiments, the electrical appliance includes a refrigerator, and the number of door bodies of the refrigerator is two; wherein, the two pushing assemblies respectively act on the two door bodies to open the door bodies of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a door opening device for some embodiments;

[0020] Figure 2 For Figure 1 the top view of the door opening device in

[0021] Figure 3 For Figure 2 the sectional view taken along the A-A direction of the door opening device in

[0022] Figure 4 For Figure 1 Schematic diagram of the cooperation between the two incomplete gears of the middle door opening device and the two pushing components;

[0023] Figure 5 For Figure 4 Bottom view of

[0024] Figure 6 For Figure 1 Schematic diagram of the structure of the incomplete gear of the middle door opening device;

[0025] Figure 7 For Figure 1 Schematic diagram of the structure of the driven gear of the middle door opening device;

[0026] Figure 8 For Figure 1 Schematic diagram of the extension of the first pushing component of the middle door opening device;

[0027] Figure 9 For Figure 1 Schematic diagram of the extension of the second pushing component of the middle door opening device;

[0028] Figure 10 Schematic diagram of the structure of a refrigerator in some embodiments.

[0029] In the drawings:

[0030] Drive assembly 10, output gear 101, driver 102, reduction gear mechanism 103, connecting gear 104;

[0031] Pushing assembly 20, first pushing component 201, second pushing component 202, driven gear 203, body 2031, protrusion 2032, second tooth 2033, linkage gear 204, rack 205, pushing member 206, slide rail 207, shock pad 208, trigger member 209;

[0032] Incomplete gear 30, first incomplete gear 301, second incomplete gear 302, toothed surface 303, toothless surface 304, avoidance opening 305;

[0033] Main body 40, slider 401;

[0034] Door body 50, first door body 501, second door body 502;

[0035] First microswitch 60;

[0036] Second microswitch 70. Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0038] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0039] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0041] The following describes the present application with reference to the accompanying drawings and specific embodiments:

[0042] An opening device and an electrical appliance provided in this embodiment are intended to solve at least to a certain extent the technical problems.

[0043] Figure 1 It is a schematic structural diagram of an opening device for some embodiments; Figure 8 is Figure 1 a schematic diagram of the extension of the first pushing component of the opening device in Figure 9 is Figure 1 a schematic diagram of the extension of the second pushing component of the opening device in Figure 10 is a schematic structural diagram of a refrigerator for some embodiments. Combining Figure 1 、Figure 8 , Figure 9 and Figure 10 , the door opening device of the embodiment of the present application is used to open the door body 50 provided on the main body 40. The door opening device includes: a driving component 10, two pushing components 20, and two incomplete gears 30. The driving component 10 is provided on the main body 40. The two pushing components 20 are provided on the main body 40 and are used to drive the door body 50 to move. The two incomplete gears 30 are both meshed with the driving component 10 and respectively act on the two pushing components 20. Among them, during the process that the driving component 10 drives the two incomplete gears 30 to rotate, one of the two incomplete gears 30 is meshed with the corresponding pushing component 20 to drive the corresponding pushing component 20 to move, and the other is power-separated from the corresponding pushing component 20.

[0044] The incomplete gear 30 being power-separated from the pushing component 20 means that the incomplete gear 30 does not transmit the power of the driving component 10 to the pushing component 20.

[0045] Since the driving component 10 is provided on the main body 40, the driving component 10 is supported by the main body 40. Since the two pushing components 20 are provided on the main body 40 and are used to drive the door body 50 to move, the two incomplete gears 30 are both meshed with the driving component 10 and respectively act on the two pushing components 20. During the process that the driving component 10 drives the two incomplete gears 30 to rotate, one of the two incomplete gears 30 is meshed with the corresponding pushing component 20 to drive the corresponding pushing component 20 to move, and the other is power-separated from the corresponding pushing component 20. Therefore, during the process that the incomplete gear 30 drives the corresponding pushing component 20 to move, the pushing component 20 can push the corresponding door body 50 to open the door body 50, and the door body 50 can be automatically opened. Under the condition that the user often holds objects with both hands or has dirty hands, there is no need for the user to pull the door body 50 by hand, which liberates the user's hands, saves time and effort, and improves the user experience.

[0046] A driving component 10 can respectively transmit power to the two pushing components 20 so that the two pushing components 20 can respectively open the corresponding door bodies 50, realizing that one driving component 10 can open two door bodies 50. Compared with the method of using two sets of independent door opening devices to respectively open two door bodies 50, the number of components is reduced, the cost is reduced, and the manufacturing difficulty is also reduced.

[0047] In some embodiments, in order to make the rotation directions of the two incomplete gears 30 the same, the two incomplete gears 30 are both externally meshed with the output gear 101 of the drive assembly 10. That is to say, the output gear 101 is the driving member, and the two incomplete gears 30 are the driven members. When the output gear 101 rotates clockwise, the two incomplete gears 30 both rotate counterclockwise. When the output gear 101 rotates counterclockwise, the two incomplete gears 30 both rotate clockwise.

[0048] Combined with Figure 1 , in some embodiments, when the two incomplete gears 30 are in the initial state, the two incomplete gears 30 are respectively located on opposite sides of the output gear 101. That is to say, the two incomplete gears 30 are symmetrically arranged with the output gear 101 as the axis of symmetry. When the output gear 101 drives the two incomplete gears 30 to rotate, it is ensured that the rotation directions of the two incomplete gears 30 are the same.

[0049] Combined with Figure 1 and Figure 8 , in some embodiments, the two pushing assemblies 20 include a first pushing assembly 201 and a second pushing assembly 202, the two incomplete gears 30 include a first incomplete gear 301 and a second incomplete gear 302, and the door body 50 includes a first door body 501 and a second door body 502. When only the first door body 501 is opened, the output gear 101 rotates counterclockwise to drive the first incomplete gear 301 and the second incomplete gear 302 to rotate clockwise. The first incomplete gear 301 meshes with the first pushing assembly 201 to drive the first pushing assembly 201 to act, so that the first pushing assembly 201 can open the first door body 501. At this time, the second incomplete gear 302 is power-separated from the second pushing assembly 202, and the second pushing assembly 202 does not act.

[0050] In some embodiments, after the first door body 501 is opened, the first pushing assembly 201 needs to return to its original position to avoid the first pushing assembly 201 interfering with the closing of the first door body 501. The output gear 101 rotates counterclockwise to drive the first incomplete gear 301 and the second incomplete gear 302 to rotate clockwise. The first incomplete gear 301 meshes with the first pushing assembly 201 to drive the first pushing assembly 201 to act, so that the first pushing assembly 201 returns to its original position. At this time, the second incomplete gear 302 is power-separated from the second pushing assembly 202, and the second pushing assembly 202 does not act.

[0051] Combined with Figure 1 and Figure 9, in some embodiments, when only the second door body 502 is opened, the output gear 101 rotates clockwise to drive the first incomplete gear 301 and the second incomplete gear 302 to rotate counterclockwise. The second incomplete gear 302 meshes with the second pushing component 202 to drive the second pushing component 202 to act, so that the second pushing component 202 can open the second door body 502. At this time, the first incomplete gear 301 is power-separated from the first pushing component 201, and the first pushing component 201 does not act.

[0052] In some embodiments, after the second door body 502 is opened, the second pushing component 202 needs to return to its original position to avoid the second pushing component 202 interfering with the closing of the second door body 502. The output gear 101 rotates counterclockwise to drive the first incomplete gear 301 and the second incomplete gear 302 to rotate clockwise. The second incomplete gear 302 meshes with the second pushing component 202 to drive the second pushing component 202 to act, so that the second pushing component 202 returns to its original position. At this time, the first incomplete gear 301 is power-separated from the first pushing component 201, and the first pushing component 201 does not act.

[0053] Figure 4 For Figure 1 the schematic diagram of the cooperation between the two incomplete gears of the middle door opening device and the two pushing components; Figure 5 For Figure 4 the bottom view of Figure 6 For Figure 1 the schematic diagram of the structure of the incomplete gear of the middle door opening device. Combining Figure 4 , Figure 5 and Figure 6 , in some embodiments, in order to transmit the power of the driving component 10 to the corresponding pushing component 10 through the incomplete gear 30, a part of the circumferential surface of the incomplete gear 30 has first teeth to form a toothed surface 303, and the rest of the circumferential surface of the incomplete gear 30 is a smooth surface to form a toothless surface 304. The toothed surface 303 and the toothless surface 304 are connected end to end. That is to say, during the process of the driving component 10 driving the two incomplete gears 30 to rotate, the toothed surface 303 of one of the two incomplete gears 30 meshes with the corresponding pushing component 20 to drive the corresponding pushing component 20 to act, and the toothless surface 304 of the other is power-separated from the corresponding pushing component 20. Among them, the number of the toothed surface 303 and the toothless surface 304 is one.

[0054] Combining Figure 6, in some embodiments, in order to ensure the opening degree of the door body 50, the arc length of the toothed surface 303 is greater than that of the toothless surface 304, which can increase the meshing stroke between the toothed surface 303 and the pushing component 10, so as to ensure the action stroke of the pushing component 10, enabling the pushing component 10 to fully act on the door body 50 to ensure that the opening degree of the door body 50 meets the requirements.

[0055] Combined with Figure 4 and Figure 5 , in some embodiments, when the two incomplete gears 30 are in the initial state, the area of the toothless surface 304 close to the toothed surface 303 is power-separated from the pushing component 20. That is to say, both pushing components 20 are located at the junction of the toothed surface 303 and the toothless surface 304. When the two incomplete gears 30 rotate, the toothed surface 303 of one of the two incomplete gears 30 can immediately mesh with one of the moving components 20, and the toothless surface 304 of the other can immediately be power-separated from the other pushing component 20. When the output gear 101 of the driving component 10 rotates counterclockwise or clockwise, one of the two pushing components 20 will immediately act to push the corresponding door body 50 open, with almost no delay, improving the door-opening efficiency and the user experience.

[0056] Combined with Figure 1 , in some embodiments, in order to push the door body 50, the pushing component 20 includes: a driven gear 203, a linkage gear 204, a rack 205, and a pusher 206. The driven gear 203 meshes with or is power-separated from the incomplete gear 30. The linkage gear 204 is connected to the driven gear 203. The rack 205 meshes with the linkage gear 204. The pusher 206 is connected to the second rack 205 at an angle.

[0057] In some embodiments, when opening the door body 50, the driving component 10 is started, and the driving component 10 drives the two incomplete gears 30 to rotate. One of the two incomplete gears 10 meshes with the corresponding driven gear 203 to drive the corresponding driven gear 203 to act. The driven gear 203 drives the linkage gear 204 to act, and the linkage gear 204 drives the pusher 206 to perform a linear motion through the second gear 205, so that the pusher 206 can push the corresponding door body 50 open, enabling the door body 50 to be automatically opened. Under the condition that the user often holds objects in both hands or has dirty hands, there is no need for the user to pull the door body 50 by hand, liberating the user's hands, saving time and effort, and improving the user experience. The other of the two incomplete gears 10 is power-separated from the corresponding driven gear 203. That is to say, the other of the two incomplete gears 10 does not mesh with the corresponding driven gear 203, and the power of the driving component 10 is not transmitted to the driven gear 203, so that the corresponding pusher 206 does not act.

[0058] Combined withFigure 1 and Figure 5 , in some embodiments, the curve formed by the connection line of the tooth tips of the linkage gear 204 can be a spiral line, and this spiral line can be an Archimedean Spiral, a Hyperbolic Curve, an Involute Curve, etc. However, if the above relational expression is satisfied, it is not limited to the above lines.

[0059] Combined with Figure 1 and Figure 5 , in some embodiments, the linkage gear 204 can be half of a gear, that is, a toothed plate, which can reduce the weight and also reduce the production and manufacturing cost.

[0060] Combined with Figure 1 , in some embodiments, the included angle between the rack 205 and the pushing member 206 can be an acute angle. When the first linkage gear 103 drives the rack 205 to move, it is convenient for the rack 205 to drive the pushing member 206 to perform a linear motion.

[0061] In some embodiments, in order to ensure the stability of the connection between the rack 205 and the pushing member 206, the rack 205 and the pushing member 206 can be integrally formed, making the connection between the rack 205 and the pushing member 206 firm. At the same time, the manufacturing cost is also reduced.

[0062] Figure 2 is Figure 1 the top view of the middle door opening device; Figure 3 is Figure 2 the A-A sectional view of the middle door opening device. Combined with Figure 2 and Figure 3 , in some embodiments, in order to ensure the stability of the movement of the pushing member 206, one of the pushing member 206 and the main body 40 is provided with a slide rail 207, and the other is provided with a slider 401. The slider 401 is slidably arranged in the slide rail 207. When the pushing member 206 performs a linear motion relative to the main body 40, the slider 401 can slide in the slide rail 207 to realize the limit of the movement of the pushing member 206, avoiding the deviation of the movement of the pushing member 206, so that the pushing member 206 can push the door body 50.

[0063] In some embodiments, the pushing member 206 can be provided with a slide rail 207, and the main body 40 can be provided with a slider 401. Of course, in some other embodiments, the main body 40 can be provided with a slide rail 207, and the pushing member 206 can be provided with a slider 401.

[0064] Figure 7 is Figure 1 the structural schematic diagram of the driven gear of the middle door opening device. Combined with Figure 4 and Figure 7, in some embodiments, when the driving component 20 is power-separated from the incomplete gear 30, in order to ensure that the incomplete gear 30 does not drive the corresponding driven gear 203 to move, the driven gear 203 includes a body 2031 and a protrusion 2032 and a plurality of second teeth 2033 provided on the circumferential surface of the body 2031. Among them, during the process of the driving component 10 driving the two incomplete gears 30 to rotate, one of the two incomplete gears 30 is in transmission connection with the second teeth 2033 of the corresponding driven gear 203 to drive the corresponding driving component 20 to move, and the other is power-separated from the protrusion 2032 of the corresponding driven gear 203.

[0065] Combined with Figure 4 and Figure 7 , in some embodiments, when the driving component 20 is power-separated from the incomplete gear 30, the protrusion 2032 of the driven gear 203 is located on the toothless surface 304 of the incomplete gear 30. When the incomplete gear 30 rotates, the protrusion 2032 slides on the toothless surface 304 to lock the position of the driven gear 203, maintain the relative position of the driven gear 20, and ensure that the driven gear 203 does not rotate.

[0066] Combined with Figure 4 and Figure 7 , in some embodiments, when the driving component 20 meshes with the incomplete gear 30, the plurality of second teeth 2023 of the driven gear 203 mesh with the corresponding incomplete gear 30. When the incomplete gear 30 rotates, the incomplete gear 30 can drive the corresponding driven gear 203 to rotate.

[0067] Combined with Figure 4 , Figure 6 and Figure 7 , in some embodiments, in order to ensure that the incomplete gear 30 can smoothly mesh with the corresponding driven gear 203, an avoidance opening 305 is provided at the position of the incomplete gear 30 opposite to the protrusion 2032 in the initial state. Through the avoidance opening 305 for transition, when the incomplete gear 30 meshes with the corresponding driven gear 203, the incomplete gear 30 can smoothly mesh with the second teeth 2033 of the driven gear 203, avoiding interference between the protrusion 2032 and the incomplete gear 30, and ensuring that both the incomplete gear 30 and the driven gear 203 can rotate smoothly.

[0068] Combined with Figure 1 , in some embodiments, a shock-absorbing pad 208 is provided at the end of the pusher 206 facing the door body 50. When the first driving component 10 abuts against the door body 50, the shock-absorbing pad 208 can absorb shock, realizing soft contact between the driving component 30 and the door body 50, reducing the damage of vibration to the door body 50 and the driving component 30, and ensuring the service life of the door body 50 and the driving component 30.

[0069] In some embodiments, the material of the shock pad 208 can be rubber, plastic, sponge, etc., but if it can perform shock absorption, it is not limited to the above materials.

[0070] Combined with Figure 1 、 Figure 8 and Figure 9 , in some embodiments, in order to control the extension or retraction of the two pushing components 30, the door opening device further includes: two first microswitches 60 and two second microswitches 70. The two first microswitches 60 are arranged on the main body 40 and are respectively located at the starting points of the strokes of the two pushing components 20. The two second microswitches 70 are arranged on the main body 40 and are respectively located at the ending points of the strokes of the two pushing components 20.

[0071] In some embodiments, when the pushing component 20 reaches the limit position of retraction, that is, when the pushing component 20 reaches the starting point of the stroke, the pushing component 20 contacts the first microswitch 60. In order to prevent the pushing component 20 from moving excessively, the first microswitch 60 sends a stop signal to the driving component 40, and the driving component 10 stops operating, so that the pushing component 20 stops operating. When the pushing component 20 reaches the limit position of extension, that is, when the pushing component 20 reaches the ending point of the stroke, the pushing component 20 contacts the second microswitch 70. In order to prevent the pushing component 20 from moving excessively, the second microswitch 70 sends a reverse signal to the driving component 40, and the driving component 10 reverses, so that the pushing component 20 retracts. When closing the door body 50, it is ensured that the pushing component 20 does not press against the door body 50, and the normal closing operation is guaranteed.

[0072] Combined with Figure 1 、 Figure 8 and Figure 9 , in some embodiments, in order to ensure that the first microswitch 60 can be triggered, the first microswitch 60 is located on the rotation path of the linkage gear 204. When the pushing component 20 reaches the limit position of retraction, the linkage gear 204 will contact the first microswitch 60, so that the first microswitch 60 can send a stop signal to the driving component 50.

[0073] In some embodiments, in order to ensure that the second microswitch 70 can be triggered, the second microswitch 70 is located on the pushing path of the pushing member 206. When the pushing component 20 reaches the limit position of extension, the pushing member 206 will contact the second microswitch 70, so that the second microswitch 70 can send a reverse signal to the driving component 40.

[0074] Combined with Figure 1 , in some embodiments, a trigger member 209 is provided on the pushing member 206, and the trigger member 207 can contact the second microswitch 80 to facilitate triggering the second microswitch 80.

[0075] Combined with Figure 1 and Figure 5 Figure 5 , in some embodiments, in order to drive the intermittent gear 30 to rotate, the drive assembly 10 includes: an output gear 101, a driver 102, a reduction gear mechanism 103, and two connecting gears 104. The driver 102 is provided on the main body 40. The reduction gear mechanism 103 is provided on the main body 40 and meshes with the output end of the driver 102 and the output gear 101. Both of the two connecting gears 104 mesh with the output gear 101 and are respectively connected to the two intermittent gears 30. Among them, the driver 102 can be an electric motor.

[0076] In some embodiments, when the intermittent gear 30 needs to be driven to rotate, the driver 102 is started. The driver 102 transmits power to the reduction gear mechanism 103. The reduction gear mechanism 103 can reduce the output speed of the driver 102, increase the torque, and enhance the load capacity. The reduction gear mechanism 103 transmits the power to the output gear 101. The output gear 101 drives the connecting gear 104 to rotate, and the connecting gear 104 drives the corresponding intermittent gear 30 to rotate.

[0077] In some embodiments, in order to ensure the stability of the movement of the intermittent gear 30, the connecting gear 104 and the intermittent gear 30 are coaxially arranged, and the connecting gear 104 and the intermittent gear 30 are arranged vertically one above the other along the axis of the intermittent gear 30.

[0078] In some embodiments, in order to ensure the stability of the connection between the connecting gear 104 and the intermittent gear 30, the connecting gear 104 and the intermittent gear 30 can be integrally formed, so that the connection between the connecting gear 104 and the intermittent gear 30 is firm. At the same time, the manufacturing cost is reduced.

[0079] Based on the same inventive concept, the present application also proposes an electrical appliance. The electrical appliance adopts the door opening device, and the specific structure of the door opening device refers to the above embodiments. Since all the technical solutions of the above embodiments are adopted, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0080] Combined with Figure 10 Figure 10 , in some embodiments, the electrical appliance includes a main body 40 and a door body 50. The main body 40 is provided with an opening, and the door body 50 is arranged at the opening. The door body 50 rotates relative to the main body 40 to open or close the opening. The door opening device is arranged at the top of the main body 40.

[0081] In some embodiments, the electrical appliance can be a household appliance such as a refrigerator, a dishwasher, or a disinfection cabinet.

[0082] Combined with Figure 10, in some embodiments, in order to open the door body 50 of the refrigerator, the electrical appliance includes a refrigerator, and the number of the door bodies 50 of the refrigerator is two. Among them, the two pushing components 20 respectively act on the two door bodies 50.

[0083] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0084] In addition, in the present application, the descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments may be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of the technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of the technical solutions does not exist and is not within the protection scope required by the present application.

[0085] In the description of the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0086] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0087] Although the preferred embodiments of this application have been described, additional changes and modifications can be made to these embodiments by those of ordinary skill in the art once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0088] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A door opening device, used to open a door body arranged on a main body, characterized in that: The door opening device comprises: A driving assembly, disposed on the main body; Two pushing components, arranged on the main body, for driving the door body to move; Two incomplete gears, both meshing with the driving assembly and acting on the two pushing assemblies respectively; Wherein, in the process of the driving component driving the two incomplete gears to rotate, one of the two incomplete gears is meshed with the corresponding pushing component to drive the corresponding pushing component to move, and the other is separated from the corresponding pushing component by power.

2. The door opening device according to claim 1, characterized in that: The two incomplete gears are both externally meshed with the output gear of the drive assembly; When the two incomplete gears are in an initial state, the two incomplete gears are symmetrically arranged.

3. The door opening device according to claim 2, characterized in that: A portion of the circumference of the incomplete gear has first teeth to form a toothed surface, and the rest of the circumference of the incomplete gear is a smooth surface to form a toothless surface, and the toothed surface and the toothless surface are connected end to end to each other; The arc length of the toothed surface is greater than the arc length of the toothless surface, and when the two incomplete gears are in an initial state, the area of ​​the toothless surface close to the toothed surface is dynamically separated from the propulsion assembly.

4. The door opening device according to any one of claims 1 to 3, characterized in that: The pushing component comprises: A driven gear meshing with or powered by the incomplete gear; A linkage gear connected to the driven gear; A rack meshing with the linkage gear; A pushing member is connected to the rack at an angle.

5. The door opening device according to claim 4, characterized in that: The driven gear comprises a body, a protrusion and a plurality of second teeth arranged on a circumferential surface of the body; Wherein, in the process of the driving component driving the two incomplete gears to rotate, one of the two incomplete gears is connected to the second tooth of the corresponding driven gear to drive the corresponding pushing component to move, and the other is separated from the convex power of the corresponding driven gear.

6. The door opening device according to claim 5, characterized in that: When the incomplete gear is in an initial state, a clearance opening is provided at a position opposite to the protrusion.

7. The door opening device according to claim 4, characterized in that: The door opening device also includes: Two first micro switches are arranged on the main body and are respectively located at the starting points of the travel of the two pushing components; Two second micro switches are arranged on the main body and are respectively located at the travel end points of the two pushing components.

8. The door opening device according to claim 7, characterized in that: The first micro switch is located in the rotation path of the linkage gear, and the second micro switch is located in the pushing path of the pushing member.

9. An electrical device, characterized in that: Comprising a door opening device as described in any one of claims 1-8.

10. The electrical equipment according to claim 9, characterized in that: The electrical appliance includes a refrigerator, and the number of doors of the refrigerator is two; Wherein, the two pushing components act on the two door bodies respectively.

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