Dishwasher

Abstract

The utility model relates to the technical field of household appliances, and discloses a dish washing machine which comprises an automatic door opening and closing device which comprises a first sliding rail arranged on a machine body, a second sliding rail arranged on a door body, a connecting rod mechanism connected between the first sliding rail and the second sliding rail in a sliding mode and a driving mechanism. The middle part of the connecting rod mechanism is rotatably connected to the power output component; the driving mechanism drives the connecting rod mechanism to move up and down, so that the connecting rod mechanism slides between the first sliding rail and the second sliding rail in different inclined states, and the door body is opened or closed. The machine body and the door body are connected through the connecting rod mechanism with the fixed length, the driving mechanism is used for driving the connecting rod mechanism to move, the technical effects that the connecting rod mechanism moves relative to the machine body to drive the door body to be opened and closed, and the door body can stay at any opening angle are achieved, and in addition, compared with a tension spring structure, the connecting rod mechanism is higher in strength and more reliable; and the problems of deformation and failure are not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly to a dishwasher. Background Art

[0002] During the operation of the dishwasher, in the last stage of the dishwashing program, it is necessary to dry the tableware in the dishwasher. Although the tableware can be dried, the inner cavity of the dishwasher is still in a relatively high-humidity and high-temperature state. Therefore, after drying, the door body needs to be opened to allow the hot and humid air in the inner cavity to escape, so as to improve the moisture removal and humidity control ability of the dishwasher and enhance the drying effect of the inner cavity and the tableware. And after the hot and humid air is discharged, the door body needs to be closed to prevent dust and insects from entering the inside of the dishwasher.

[0003] However, among the dishwashers with automatic door opening and closing functions currently on the market, only small-angle automatic door opening and closing can be achieved, and full-angle automatic door opening and closing cannot be achieved. Moreover, the existing automatic door opening and closing devices have complex structures and are prone to failure. Summary of the Utility Model

[0004] In view of this, the utility model provides a dishwasher to solve the problems that the automatic door opening and closing device of the existing dishwasher has a complex structure, is prone to failure, and cannot achieve full-angle automatic door opening and closing.

[0005] The utility model provides a dishwasher, which includes a body, a door body, and an automatic door opening and closing device arranged between the body and the door body. The automatic door opening and closing device includes:

[0006] A first slide rail, arranged on the body;

[0007] A second slide rail, arranged on the door body;

[0008] A link mechanism, one end of which is slidably connected to the first slide rail, and the other end of which is slidably connected to the second slide rail;

[0009] A driving mechanism, installed on the body, the driving mechanism has a power output component that moves up and down, and the middle part of the link mechanism is rotatably connected to the power output component;

[0010] The driving mechanism drives the link mechanism to move up and down through the power output component, so that the link mechanism slides between the first slide rail and the second slide rail in different inclined states to realize opening or closing of the door body.

[0011] Beneficial effects: By taking advantage of the characteristic that the length of the link mechanism is fixed, the two ends of the link mechanism are slidably connected between the first slide rail and the second slide rail on the body and the door body, and the middle part of the link mechanism is rotatably connected to the power output component of the driving mechanism, so that the whole link mechanism forms a structure similar to a lever. Then, the power output component of the driving mechanism drives the middle part of the link mechanism to change its vertical position relative to the dishwasher to realize the opening of the door body. The present utility model can complete the opening and closing actions of the door by controlling the up and down movement of a link mechanism, with a simpler structure and more convenient operation. Moreover, during the process of opening and closing the door, the link mechanism moves up and down accordingly, and there will be no problem of incomplete door opening due to excessive torque. In addition, compared with the tension spring structure, the link mechanism has higher strength, is more reliable, and is less likely to deform and fail, ensuring that the door body can be fully opened or completely closed, achieving the full-angle movement of opening and closing the door, and improving the user experience. Therefore, the dishwasher provided by the present utility model effectively solves the problem that the existing dishwasher needs to use two upper and lower mechanisms to jointly drive to realize the automatic opening and closing of the door body. Not only is the structure complex and the operation process cumbersome, but also because the door body is relatively heavy, the tension spring is easily deformed and fails after long-term stretching actions, resulting in the problem that the door body cannot be completely closed or fully opened.

[0012] In an alternative embodiment, the first slide rail is arranged in the vertical direction, the second slide rail is arranged along the height direction of the door body, and the first slide rail and the second slide rail are partially staggered in the horizontal direction;

[0013] The driving mechanism drives the link mechanism to move between the upper limit position at the top of the first slide rail and the second slide rail and the lower limit position at the bottom of the first slide rail and the second slide rail;

[0014] When the link mechanism is in the upper limit position, the dishwasher is in the closed state; when the link mechanism is in the lower limit position, the dishwasher is in the fully open state.

[0015] Beneficial effects: By partially staggering the first slide rail and the second slide rail in the horizontal direction, the upper and lower ends of the first slide rail and the second slide rail can be staggered up and down, thus facilitating the conversion of the rotation center of the link mechanism during the process of opening and closing the door, enabling the link mechanism to form different inclined states by means of the height difference between the upper and lower ends of the first slide rail and the second slide rail during the up and down movement, which is more conducive to realizing the complete closing or full opening of the door body. By adopting a link mechanism with a fixed length to connect the body and the door body and using the driving mechanism to drive the link mechanism to move, the technical effect of driving the door body to open and close by the relative movement of the link mechanism relative to the body and being able to stop the door body at any opening angle is achieved.

[0016] In an alternative embodiment, the first slide rail includes a first chute opened on the side of the body in the vertical direction;

[0017] The second slide rail includes a second chute opened on the side of the door body along the height direction of the door body.

[0018] Beneficial effects: By adopting the structural forms of the first chute and the second chute, the first slide rail and the second slide rail have a simple forming method and good guiding effects. Moreover, by respectively opening the first chute and the second chute on the side of the fuselage and the door body, it is more convenient for the connecting rod mechanism to be connected. And during the opening and closing process of the door body, the connecting rod mechanism will not interfere with or hinder the moving door body.

[0019] In an alternative embodiment, the connecting rod mechanism includes:

[0020] A connecting rod;

[0021] A first guiding member disposed at the first end of the connecting rod, and the first guiding member is slidably limited in the first chute;

[0022] A second guiding member disposed at the second end of the connecting rod, and the second guiding member is slidably limited in the second chute.

[0023] Beneficial effects: Through the provided connecting rod and the first guiding member and the second guiding member disposed at both ends of the connecting rod, by using the limiting cooperation between the first guiding member and the second guiding member and the first chute and the second chute, the sliding connection of the entire connecting rod mechanism with the fuselage and the door body is realized, so that the connecting rod mechanism is not easily decoupled from the fuselage or the door body during the movement process, and the stability and reliability are higher.

[0024] In an alternative embodiment, a first rotating shaft is fixedly disposed at one end of the connecting rod, and a second rotating shaft is fixedly disposed at the other end;

[0025] The first guiding member includes a first pulley rotatably connected to the first rotating shaft, and the second guiding member includes a second pulley rotatably connected to the second rotating shaft.

[0026] Beneficial effects: By adopting the structural forms of the first pulley and the second pulley for the first guiding member and the second guiding member, the first pulley and the second pulley can keep constant contact with the track surfaces of the first chute and the second chute and form a rolling fit, thereby reducing the friction force during the movement process of the connecting rod mechanism, making the movement smoother and more flexible, and facilitating driving.

[0027] In an alternative embodiment, the bottom of the door body is rotatably connected to the fuselage; when the dishwasher is in the closed state, the upper end of the first slide rail is higher than the upper end of the second slide rail, and the lower end of the first slide rail is higher than the lower end of the second slide rail.

[0028] Beneficial effects: By adopting the design that the upper end of the first slide rail is higher than the upper end of the second slide rail and the lower end of the first slide rail is higher than the lower end of the second slide rail, it is convenient for the conversion of the rotation center of the link mechanism during the process of opening and closing the door, so that the dishwasher can automatically open and close the door, and the door can be opened and closed within the full angular range, improving the user experience.

[0029] In an alternative embodiment, a third slide rail is further provided on the machine body, and the third slide rail is located between the first slide rail and the second slide rail;

[0030] The power output component is slidably engaged with the third slide rail and can move up and down under the guidance of the third slide rail.

[0031] Beneficial effects: By providing the third slide rail on the machine body, the power output component of the driving mechanism can move along the guiding track of the third slide rail, ensuring the reliability and stability of the movement of the entire link mechanism. And by arranging the third slide rail between the first slide rail and the second slide rail, it is more convenient for the power output component to be rotatably connected to the middle part of the link.

[0032] In an alternative embodiment, the third slide rail includes:

[0033] A straight section, parallel to the first slide rail;

[0034] A first bending section and a second bending section, arranged at both ends of the straight section, and both the first bending section and the second bending section bend towards the direction close to the first slide rail.

[0035] Beneficial effects: The third slide rail adopts a straight section and the first bending section and the second bending section arranged at both ends of the straight section. When the link mechanism rotates around the first rotating shaft and the second rotating shaft, the first bending section and the second bending section can avoid the power output component and the third rotating shaft on the link that is rotatably connected to the power output component, so that the door body can be fully opened or completely closed.

[0036] In an alternative embodiment, the third slide rail is a third chute opened on the side wall of the machine body;

[0037] The power output component includes a slider slidably connected in the third chute, and a third rotating shaft rotatably connected to the slider is arranged in the middle of the link mechanism.

[0038] Beneficial effects: The slider and the third rotating shaft in the middle of the link are axially matched, and the slider can rotate axially relative to the third rotating shaft. The third rotating shaft is located at the middle position between the first rotating shaft and the second rotating shaft, which is convenient for converting the rotation center of the link during the process of opening and closing the door. The driving mechanism drives and adjusts the position of the link by being connected to the middle of the link, so that the link can stay at any position on the moving track, and thus the door body can stay at any angle.

[0039] In an alternative embodiment, the driving mechanism includes:

[0040] A power component;

[0041] A transmission component, including a first gear and a second gear arranged at intervals and a conveyor belt sleeved between the first gear and the second gear;

[0042] The conveyor belt is located at the side of the third slide rail. The first gear and the second gear are arranged corresponding to the two ends of the third slide rail. The slider is fixedly arranged on the conveyor belt;

[0043] The power component drives the conveyor belt to move by driving the first gear and the second gear to rotate, so that the slider on the conveyor belt can drive the link mechanism to move up and down along the third slide rail.

[0044] Beneficial effects: The power component drives the first gear and the second gear to rotate, so that the first gear and the second gear can drive the conveyor belt cooperating with them to rotate. Since the slider is fixed to the conveyor belt, the purpose of transmitting force can be achieved. During the rotation of the conveyor belt, the conveyor belt and the slider are relatively stationary, that is to say, the conveyor belt can drive the slider to move, but the slider cannot rotate relative to the conveyor belt. By adopting the structural form of gear + conveyor belt, the driving mechanism can not only accurately control the opening and closing angle of the door body, but also the conveyor belt requires less moving space and is less likely to interfere with other components during the movement process.

[0045] In an alternative embodiment, there are two sets of automatic door opening and closing devices, and the two sets of automatic door opening and closing devices are arranged on both sides of the fuselage and the door body.

[0046] Beneficial effects: By arranging two sets of door opening and closing devices on both sides of the fuselage and the door body, the two sets of door opening and closing devices cooperate with each other to jointly control the opening and closing of the door body, making the door body more balanced and stable during the opening and closing process and providing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 It is a schematic structural diagram of the dishwasher in the closed state in the embodiment of the present invention;

[0049] Figure 2 It is a schematic structural diagram of the dishwasher in the first opening angle in the embodiment of the present invention;

[0050] Figure 3 It is a schematic structural diagram of the dishwasher in the second opening angle in the embodiment of the present utility model;

[0051] Figure 4 It is a schematic structural diagram of the dishwasher in the third opening angle in the embodiment of the present utility model;

[0052] Figure 5 It is a schematic structural diagram of the dishwasher in the fully open door state in the embodiment of the present utility model;

[0053] Figure 6 It is a side view of the dishwasher in the closed door state in the embodiment of the present utility model;

[0054] Figure 7 It is a side view of the dishwasher in the fully open door state in the embodiment of the present utility model;

[0055] Figure 8 It is an exploded view of the dishwasher in the embodiment of the present utility model;

[0056] Figure 9 It is a schematic structural diagram of the connecting rod in the embodiment of the present utility model;

[0057] Figure 10 It is a relationship diagram between the motor opening time and the door body opening angle of the dishwasher in the embodiment of the present utility model.

[0058] Explanation of reference numerals:

[0059] 10, body;

[0060] 20, door body;

[0061] 30, automatic door opening and closing device;

[0062] 31, first slide rail;

[0063] 32, second slide rail;

[0064] 33, connecting rod mechanism; 331, connecting rod; 3311, first rotating shaft; 3312, second rotating shaft; 3313, third rotating shaft; 332, first pulley; 333, second pulley;

[0065] 34, driving mechanism; 341, first motor; 342, second motor; 343, first gear; 344, second gear; 345, conveyor belt; 346, slider;

[0066] 35, third slide rail; 351, straight section; 352, first bending section; 353, second bending section. Detailed implementation manners

[0067] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0068] Automatic door opening and closing can not only improve the dishwasher's ability to drain moisture and control humidity, improve the drying effect of the inner tank and tableware, but also prevent dust and insects from entering the dishwasher. However, most dishwashers on the market currently do not have the structure and technology for automatic door opening. Some dishwashers with automatic door opening functions cannot open and close the door in a full range and can only open and close the door at a small angle, generally about 15°. Due to the small automatic door opening angle of the dishwasher, during the drying stage of the washing process, the gap formed after the door body automatically opens is small, and the steam cannot quickly escape from the dishwasher, resulting in a longer drying time and affecting the moisture and heat dissipation effect.

[0069] Therefore, in order to achieve a wider range of opening of the door body in the related art, a push rod is set at the top of the dishwasher, and a motor + tension spring + cable are set at the bottom of the dishwasher, and the upper and lower mechanisms are used to work together to achieve automatic opening and closing of the door body. However, since the upper and lower machines need to cooperate with each other to achieve automatic opening and closing of the door body, not only is the structure complicated and the operation process cumbersome, but also because the door body is relatively heavy, the tension spring is stretched for a long time, which can easily cause the tension spring to deform and fail, thereby affecting the opening and closing effect of the door body.

[0070] Therefore, the technical problems to be solved by the embodiments of the present invention are as follows:

[0071] ① Reduce the impact of the tension spring material. Since the dishwasher door is relatively heavy, the tension spring is stretched for a long time, which is a great test for the material strength of the tension spring. The tension spring is easily deformed or the load exceeds the tolerance range due to long-term stretching, which affects the normal opening and closing of the door.

[0072] ② The dishwasher in the related technology requires the top push rod and the bottom motor + tension spring + cable to realize the automatic opening and closing of the door body. The two mechanisms need to work together to complete the opening and closing of the door, which makes the door opening and closing process more cumbersome and increases the complexity of the structure.

[0073] ③In the related art, a dishwasher cannot complete the complete closing action. Because it pulls the bottom of the door body through a motor + a tension spring + a cable, the door body has a certain weight. At the same time, the opening and closing rotation shaft of the door is generally located at the bottom of the door body. Due to the lever arm relationship, the torque at the rotation shaft becomes very large, resulting in the problem of excessive torque. In the later stage of the closing action, the door body will remain at a certain angle and cannot be completely closed, and the actual feasibility is poor.

[0074] The following will describe the embodiments of the present invention in conjunction with Figures 1 to 10 , to describe the embodiments of the present invention.

[0075] According to an embodiment of the present invention, on the one hand, the present invention provides a dishwasher, including a body 10, a door body 20, and an automatic door opening and closing device 30 disposed between the body 10 and the door body 20. The automatic door opening and closing device 30 includes: a first slide rail 31, a second slide rail 32, a link mechanism 33, and a driving mechanism 34. The first slide rail 31 is disposed on the body 10; the second slide rail 32 is disposed on the door body 20; one end of the link mechanism 33 is slidably connected to the first slide rail 31, and the other end is slidably connected to the second slide rail 32; the driving mechanism 34 is installed on the body 10, and the driving mechanism 34 has a power output component that moves up and down. The middle of the link mechanism 33 is rotatably connected to the power output component; the driving mechanism 34 drives the link mechanism 33 to move up and down through the power output component, so that the link mechanism 33 slides between the first slide rail 31 and the second slide rail 32 in different inclined states to realize opening or closing of the door body 20.

[0076] In the above embodiments, by taking advantage of the characteristic that the length of the link mechanism 33 is fixed, both ends of the link mechanism 33 are slidably connected between the first slide rail 31 and the second slide rail 32 on the body 10 and the door body 20, and the middle part of the link mechanism 33 is rotatably connected to the power output component of the driving mechanism 34, so that the entire link mechanism 33 forms a structure similar to a lever. Then, the power output component of the driving mechanism 34 drives the middle part of the link mechanism 33 to change its vertical position relative to the dishwasher, so as to realize the opening and closing of the door body 20. The utility model can complete the opening and closing actions by controlling the up and down movement of a link mechanism 33, with a simpler structure and more convenient operation. Moreover, during the process of opening and closing the door, the link mechanism 33 moves up and down accordingly, and there will be no problem of incomplete door opening due to excessive torque. In addition, compared with the tension spring structure, the link mechanism 33 has higher strength, is more reliable, and is less likely to deform and fail, ensuring that the door body 20 can be fully opened or completely closed, achieving the full-angle movement of opening and closing the door, and improving the user experience. Therefore, by adopting the above automatic door opening and closing device 30, the dishwasher provided by the utility model effectively solves the problem that the existing dishwasher needs to use two upper and lower mechanisms to jointly drive to realize the automatic opening and closing of the door body 20. Not only is the structure complex and the operation process cumbersome, but also because the door body 20 is relatively heavy, the tension spring is easily deformed and fails after long-term stretching, resulting in the problem that the door body 20 cannot be completely closed or fully opened.

[0077] In some embodiments, the first slide rail 31 is arranged in the vertical direction, the second slide rail 32 is arranged along the height direction of the door body 20, and the first slide rail 31 and the second slide rail 32 are partially staggered in the horizontal direction. Preferably, the first slide rail 31 is arranged on the side wall of the body 10 in the vertical direction, and the second slide rail 32 is arranged on the side wall of the door body 20 along the height direction of the door body 20.

[0078] Furthermore, the driving mechanism 34 drives the link mechanism 33 to move between the upper limit position at the top of the first slide rail 31 and the second slide rail 32 and the lower limit position at the bottom of the first slide rail 31 and the second slide rail 32. When the link mechanism 33 is in the upper limit position, the dishwasher is in the closed state; when the link mechanism 33 is in a position between the upper limit position and the lower limit position, the dishwasher is in the half-open state; when the link mechanism 33 is in the lower limit position, the dishwasher is in the fully open state.

[0079] In the above embodiment, by partially staggering the first slide rail 31 and the second slide rail 32 in the horizontal direction, the two ends of the first slide rail 31 and the second slide rail 32 can be staggered up and down, so as to facilitate the rotation center of the conversion link mechanism 33 during the door opening and closing process, enabling the link mechanism to form different inclined states by means of the height difference between the upper and lower ends of the first slide rail and the second slide rail during the up and down movement, which is more conducive to achieving the complete closing or full opening of the door body 20. When the link mechanism 33 moves to the upper limit position at the top of the first slide rail 31 and the second slide rail 32 driven by the power output component, the link mechanism 33 is in the first inclined state, and the dishwasher is in the door-closed state; when the link mechanism 33 moves to the lower limit position at the bottom of the first slide rail 31 and the second slide rail 32 driven by the power output component, the link mechanism 33 is in the second inclined state, and the dishwasher is in the fully open door state; when the link mechanism 33 moves to a position between the upper limit position and the lower limit position driven by the power output component, the dishwasher is in the half-open door state. By using a link mechanism 33 with a fixed length to connect the fuselage 10 and the door body 20 and using the drive mechanism 34 to drive the link mechanism 33 to move, the technical effect that the link mechanism 33 moves relative to the fuselage 10 to drive the door body 20 to open and close and can stop the door body 20 at any opening angle is achieved.

[0080] Preferably, in this embodiment, the upper end of the first slide rail 31 is higher than the upper end of the second slide rail 32, and the lower end of the first slide rail 31 is higher than the lower end of the second slide rail 32.

[0081] Combined with Figures 1 to 5As shown in the figure, both ends of the link mechanism 33 are not only slidably connected to the first slide rail 31 and the second slide rail 32, but also the two ends of the link mechanism 33 can respectively perform circular motion relative to the first slide rail 31 or the second slide rail 32. The power output component of the driving mechanism 34 can drive the link mechanism 33 to move up and down. When wanting to open the door, the driving mechanism 34 drives the link mechanism 33 to move downward. First, the entire link mechanism 33 will perform circular motion with the right end of the link mechanism 33 as the rotation center; when the left end of the link mechanism 33 rotates downward to a certain height, the entire link mechanism 33 will convert from circular motion to downward translational motion. At this time, the link mechanism 33 is in the third inclined state, and the opening angle of the door body 20 will gradually increase; when the left end of the link mechanism 33 moves to the bottom of the first slide rail 31, the entire link mechanism 33 will perform circular motion with the left end of the link mechanism 33 as the rotation center. At this time, the right end of the link mechanism 33 will move downward, so that the door body 20 can be fully opened at nearly 90°. On the contrary, when wanting to close the door, the entire link mechanism 33 first performs circular motion with the left end of the link mechanism 33 as the rotation center. At this time, the right end of the link mechanism 33 will move upward; when the right end of the link mechanism 33 rotates upward a certain distance, the entire link mechanism 33 will move upward in translational motion, making the opening angle gradually decrease; when the right end of the link mechanism 33 moves to the top of the second slide rail 32, the entire link mechanism 33 will perform circular motion with the right end of the link mechanism 33 as the rotation center. At this time, the left end of the link mechanism 33 will continue to move upward until the door body 20 is completely closed.

[0082] In some embodiments, the first slide rail 31 includes a first chute opened on the side of the fuselage 10 in the vertical direction; the second slide rail 32 includes a second chute opened on the side of the door body 20 in the height direction of the door body 20, and the first chute and the second chute are partially staggered in the horizontal direction.

[0083] In the above embodiments, by adopting the structural forms of the first chute and the second chute for the first slide rail 31 and the second slide rail 32, the forming method is simple, and the guiding effect is good. And by respectively opening the first chute and the second chute on the sides of the fuselage 10 and the door body 20, it is more convenient for the link mechanism 33 to be connected, and during the opening and closing process of the door body 20, the link mechanism 33 will not interfere with or hinder the moving door body 20.

[0084] Specifically, the first chute and the second chute are respectively grooves that do not penetrate the fuselage 10 or the door body 20. One side of the fuselage 10 is provided with an opening. The fuselage 10 includes side walls on both sides of the opening. The first chute is opened on the side wall of the fuselage 10. The peripheral wall of the door body 20 includes opposite end side walls, inner side walls, and outer side walls, and the second chute is opened on the end side wall of the door body 20.

[0085] In other alternative embodiments, the first slide rail 31 and the second slide rail 32 may also adopt the structural form of guide rail frames fixed to the side walls of the fuselage 10 or the side walls of the door body 20.

[0086] In some embodiments, the link mechanism 33 includes a link 331, a first guide member, and a second guide member. The first guide member is disposed at the first end of the link 331 and is slidably limited within the first chute; the second guide member is disposed at the second end of the link 331 and is slidably limited within the second chute.

[0087] In the above embodiments, by providing the link 331 and the first guide member and the second guide member disposed at both ends of the link 331, and utilizing the limiting cooperation between the first guide member and the second guide member and the first chute and the second chute, the sliding connection of the entire link mechanism 33 with the fuselage 10 and the door body 20 is achieved, such that the link mechanism 33 is not easily decoupled from the fuselage 10 or the door body 20 during movement, and the stability and reliability are higher.

[0088] In the above embodiments, the link 331 can be made of wood, plastic, or metal materials, as long as it is ensured that the link 331 is rigid and non-extensible and contractible, and has a high strength and strong anti-fracture ability, so as to ensure the reliability of the structure of the link 331.

[0089] It should be noted that in this embodiment, the length of the link 331 is set as d1, and when the dishwasher is in the closed door state, the distance between the first slide rail 31 and the second slide rail 32 is d2, and d1 > d2. The first slide rail 31 and the second slide rail 32 are preferably straight slide rails. Of course, in other alternative embodiments, the first slide rail 31 and the second slide rail 32 may also adopt non-linear slide rails.

[0090] In some embodiments, a first rotating shaft 3311 is fixedly disposed at one end of the link 331, and a second rotating shaft 3312 is fixedly disposed at the other end; the first guide member includes a first pulley 332 rotatably connected to the first rotating shaft 3311, and the second guide member includes a second pulley 333 rotatably connected to the second rotating shaft 3312.

[0091] In the above embodiments, by adopting the structural form of the first pulley 332 and the second pulley 333 for the first guide member and the second guide member, the first pulley 332 and the second pulley 333 can keep in constant contact with the track surfaces of the first chute and the second chute and form a rolling fit, thereby reducing the friction force of the link mechanism 33 during movement, making the movement smoother and more flexible, and facilitating driving.

[0092] Specifically, in this embodiment, the first rotating shaft 3311 is axially engaged with the first pulley 332, and the second rotating shaft 3312 is also axially engaged with the first pulley 332, and they can all rotate relative to each other. The first pulley 332 is located in the first sliding rail 31 on the fuselage 10 and can slide up and down inside the first sliding rail 31. The second pulley 333 is located in the second sliding rail 32 on the door body 20 and can slide up and down inside the second sliding rail 32.

[0093] In other alternative embodiments, the first guiding member and the second guiding member can adopt structural forms such as guiding rods, guiding blocks, guiding wheels, etc.

[0094] In some embodiments, the bottom of the door body 20 is rotatably connected to the fuselage 10; when the dishwasher is in the closed door state, the upper end of the first sliding rail 31 is higher than the upper end of the second sliding rail 32, the lower end of the first sliding rail 31 is higher than the lower end of the second sliding rail 32, and the first sliding rail 31 and the second sliding rail 32 are parallel.

[0095] In the above embodiment, by adopting the design that the upper end of the first sliding rail 31 is higher than the upper end of the second sliding rail 32 and the lower end of the first sliding rail 31 is higher than the lower end of the second sliding rail 32, it is convenient for the conversion of the rotation center of the link mechanism 33 during the process of opening and closing the door, so that the automatic opening and closing of the dishwasher door can be realized, and the door can be opened and closed within the full angle range, improving the user experience.

[0096] Specifically, in this embodiment, an opening is provided on one side of the fuselage 10, and the bottom of the door body 20 is rotatably connected to the opening side of the fuselage 10. Specifically, two connecting ears are respectively provided on both sides of the bottom of the door body 20, and first shaft holes are respectively provided on the two connecting ears. Corresponding second shaft holes are provided on both sides of the bottom of the fuselage 10. The door body 20 can be rotatably connected to the bottom of the fuselage 10 by sequentially connecting the two first shaft holes and the two second shaft holes with two rotating shafts.

[0097] It should be explained that the full-angle range of opening and closing the door in this embodiment refers to the opening and closing of the door within the range of 0 to 89°. Because the door body 20 of the dishwasher also needs to bear the weight of itself, the bowl basket and the tableware, the maximum opening angle is set at 89°. Even if the door body 20 deforms when bearing various weights, there will be a reasonable angle tolerance to form 90°. If it is directly designed to be 90°, then when the user pulls out the bowl basket, due to the weight, the opening angle of the door body 20 may exceed 90°, which may easily cause the bowl basket to slide out of the door body 20, resulting in damage to the machine and tableware and affecting personal safety.

[0098] Specifically, in the above embodiment, the end of the connecting rod 331 where the first pulley 332 is provided is set as the first end, and the end where the second pulley 333 is provided is the second end. By adopting the design that the upper end of the first slide rail 31 is higher than the upper end of the second slide rail 32, during the process of closing the door body 20, since the upper end of the second slide rail 32 is lower than the upper end of the first slide rail 31, the second pulley 333 will first be limited and abutted against the upper end of the second slide rail 32, and the driving mechanism 34 will continue to drive the connecting rod 331 to move upward. Since the second pulley 333 is abutted against the upper end of the second slide rail 32, the second end of the connecting rod 331 cannot continue to move upward, so that the connecting rod 331 can only make a circular motion with the second rotating shaft 3312 as the rotation center, and then the first end of the connecting rod 331 where the first pulley 332 is provided continues to move upward until it abuts against the upper end of the first slide rail 31, realizing the complete closing of the door body 20. By adopting the design that the lower end of the first slide rail 31 is higher than the lower end of the second slide rail 32, during the process of opening the door body 20, the first pulley 332 will first be limited and abutted against the lower end of the first slide rail 31, and the driving mechanism 34 will continue to drive the connecting rod 331 to move downward. Since the first pulley 332 is abutted against the lower end of the first slide rail 31, the first end of the connecting rod 331 cannot continue to move downward, so that the connecting rod 331 can only make a circular motion with the first rotating shaft 3311 as the rotation center, and the second end of the connecting rod 331 rotates downward until it abuts against the lower end of the second slide rail 32, realizing the complete opening of the door body 20.

[0099] The present utility model realizes full-angle opening and closing of the door. Since the door body 20 has a certain weight, and the opening and closing rotating shaft of the door is generally located at the bottom position of the door body 20, due to the relationship of the force arm, the torque at the rotating shaft will become very large. In the prior art, generally, structures such as a pull rope located at the bottom of the door body 20 are used to pull the door body 20 to realize the closing of the door body 20, which has the problem of excessive torque. Although it is theoretically feasible, the actual feasibility is poor. However, in this application, by adopting a door opening and closing device with a different structural method, the opening and closing of the door body 20 are realized by controlling the up and down movement of the connecting rod mechanism 33 relative to the fuselage 10, which can effectively solve the problem in the prior art that the opening and closing effect of the door body 20 is affected due to excessive torque.

[0100] It should be explained that in this embodiment, when the dishwasher is in the closed state, the connecting rod 331 is at the first inclination angle; when the dishwasher is in the fully open state, the connecting rod 331 is at the second inclination angle; when the dishwasher is in the half-open state, the connecting rod 331 is at the third inclination angle, and both the first inclination angle and the second inclination angle are greater than the third inclination angle.

[0101] In some embodiments, a third slide rail 35 is further provided on the fuselage 10. The third slide rail 35 is located between the first slide rail 31 and the second slide rail 32; the power output component is slidably matched with the third slide rail 35 and can move up and down under the guidance of the third slide rail 35.

[0102] In the above embodiments, by providing the third slide rail 35 on the fuselage 10, the power output component of the driving mechanism 34 can move along the guiding track of the third slide rail 35, ensuring the reliability and stability of the movement of the entire link mechanism 33. And by arranging the third slide rail 35 between the first slide rail 31 and the second slide rail 32, it is more convenient for the power output component to be rotatably connected to the middle part of the link 331.

[0103] Specifically, when the dishwasher is in the closed state, the upper end of the third slide rail 35 is located between the upper ends of the first slide rail 31 and the second slide rail 32, and the lower end of the third slide rail 35 is located between the lower ends of the first slide rail 31 and the second slide rail 32.

[0104] In some embodiments, the third slide rail 35 includes: a straight section 351, a first bending section 352, and a second bending section 353. The straight section 351 is parallel to the first slide rail 31; the first bending section 352 and the second bending section 353 are arranged at both ends of the straight section 351, and both the first bending section 352 and the second bending section 353 are bent in the direction close to the first slide rail 31.

[0105] In the above embodiments, by adopting the straight section 351 and the first bending section 352 and the second bending section 353 arranged at both ends of the straight section 351 for the third slide rail 35, the first bending section 352 and the second bending section 353 can avoid the power output component and the third rotating shaft 3313 when the link mechanism 33 rotates around the first rotating shaft 3311 and the second rotating shaft 3312, so that the door body 20 can be completely opened or completely closed.

[0106] In some embodiments, the third slide rail 35 is a third chute opened on the side wall of the fuselage 10; the power output component includes a slider 346 slidably connected in the third chute, and a third rotating shaft 3313 rotatably connected to the slider 346 is arranged in the middle of the link mechanism 33.

[0107] In the above embodiments, the slider 346 and the third rotating shaft 3313 in the middle of the link 331 are axially matched, and the slider 346 can rotate axially relative to the third rotating shaft 3313. The third rotating shaft 3313 is in the middle position between the first rotating shaft 3311 and the second rotating shaft 3312, which is convenient for changing the rotation center of the link 331 during the opening and closing of the door. The driving mechanism 34 drives and adjusts the position of the link 331 by being connected to the middle of the link 331, so that the link 331 can stay at any position of the moving track, and further realizes the technical effect that the door body 20 can stay at any opening angle.

[0108] Specifically, the straight section 351 is vertically formed on the side wall of the fuselage 10. The first bending section 352 is located above the straight section 351, and the second bending section 353 is located below the straight section 351. Both the first bending section 352 and the second bending section 353 are bent towards the side where the first slide rail 31 is located. In this embodiment, the third slide rail 35 is mainly used to provide a moving track for the third rotating shaft 3313 in the middle of the connecting rod 331. There are requirements for the position, shape, and extending direction of the third slide rail 35. Specifically, the third slide rail 35 is located between the first slide rail 31 and the second slide rail 32. The shape of the straight section 351 in the middle of the third slide rail 35 is straight and extends vertically. The first bending section 352 and the second bending section 353 at both ends are in the shape of arcs bent towards the direction close to the first slide rail 31. In the process of opening and closing the door body 20, when the connecting rod mechanism 33 moves to a position close to the tops of the first slide rail 31 and the second slide rail 32, under the guidance of the first bending section 352, the entire connecting rod mechanism 33 will move towards the fuselage 10 side to pull the door body 20 inward, so that the door body 20 is tightly closed. In the process of opening the door body 20, when the connecting rod mechanism 33 moves to a position close to the bottoms of the first slide rail 31 and the second slide rail 32, the second end of the connecting rod 331 will make a circular motion downward with the first rotating shaft 3311 as the rotation center, and the second bending section 353 can avoid the moving third rotating shaft 3313, so that the door body 20 can be fully opened outward.

[0109] In a specific example, the slider 346 can be fixed to the outer wall of the conveyor belt 345 through an intermediate member. A shaft hole is formed in the middle of the slider 346, and the third rotating shaft 3313 is rotatably connected to the shaft hole of the slider 346. Optionally, the slider 346 can also adopt the structural form of a pulley, but this pulley cannot rotate.

[0110] In some embodiments, the driving mechanism 34 includes a power component and a transmission component. The transmission component includes a first gear 343 and a second gear 344 arranged at intervals and a conveyor belt 345 sleeved between the first gear 343 and the second gear 344; the conveyor belt 345 is located at the side of the third slide rail 35. The first gear 343 and the second gear 344 are arranged corresponding to the two ends of the third slide rail 35, and the slider 346 is fixedly arranged on the conveyor belt 345; the power component drives the conveyor belt 345 to move by driving the first gear 343 and the second gear 344 to rotate, so that the slider 346 on the conveyor belt 345 can drive the connecting rod mechanism 33 to move up and down along the third slide rail 35.

[0111] In the above embodiments, the power component drives the first gear 343 and the second gear 344 to rotate, so that the first gear 343 and the second gear 344 can drive the conveyor belt 345 engaged with them to rotate. Since the slider 346 is fixed to the conveyor belt 345, the purpose of transmitting force can be achieved. During the rotation of the conveyor belt 345, the conveyor belt 345 and the slider 346 are relatively stationary, that is, the conveyor belt 345 can drive the slider 346 to move, but the slider 346 cannot rotate relative to the conveyor belt 345. By adopting the structural form of gear + conveyor belt 345, the drive mechanism 34 can not only accurately control the opening and closing angle of the door body 20, but also requires less moving space for the conveyor belt 345 and is less likely to interfere with other components during the movement process.

[0112] Optionally, the conveyor belt 345 can adopt structural forms such as crawlers or chains.

[0113] Specifically, the power component is installed and fixed on the fuselage 10. The power component includes a motor. One or two motors can be provided. When one motor is provided, one of the two gears serves as the driving gear and the other serves as the driven gear. The motor is connected to the driving gear. By driving the driving gear to rotate, the driven gear and the conveyor belt 345 are driven to rotate, thereby driving the slider 346 and the link mechanism 33 to move up and down. When two motors are provided, specifically including a first motor 341 and a second motor 342, the first motor 341 and the second motor 342 are respectively fixedly connected to the first gear 343 and the second gear 344. By simultaneously driving the first gear 343 and the second gear 344 to rotate, the conveyor belt 345 is driven to rotate, thereby driving the slider 346 and the link mechanism 33 to move up and down.

[0114] In summary, the motor provides power to the gears, the gears drive the conveyor belt 345 and the slider 346 to move. Since the slider 346 is connected to the third rotating shaft 3313 of the link 331, the link 331 will also move up and down under the drive of the conveyor belt 345. And because the link 331 is connected to the fuselage 10 and the door body 20, during the up and down movement of the link 331, the door body 20 can rotate along the first rotating shaft 3311 or the second rotation on the link 331, realizing the rotation and opening or closing of the door body 20.

[0115] Of course, in other alternative embodiments, the drive mechanism 34 can also adopt drive forms such as electric push rods, motor + gear + rack, motor + sprocket + chain, etc.

[0116] Specifically, the push rod of the electric push rod can move up and down under the action of its own power source, and the end of the push rod is directly rotatably connected to the connecting rod 331 as a power output component, so as to drive the connecting rod 331 to move up and down; alternatively, the rack is movably connected to the fuselage 10, the rack can move up and down in the vertical direction, the gear meshes with the rack, and the motor drives the rack to move up and down by driving the gear to rotate. The rack is directly or indirectly rotatably connected to the connecting rod 331 as a power output component, so as to drive the connecting rod 331 to move up and down; alternatively, the driving mechanism 34 includes two sprockets arranged at intervals up and down, the chain is sleeved between the two sprockets, the slider 346 is fixed on the sprocket, and the motor drives at least one sprocket to rotate to drive the entire chain to rotate, so as to drive the connecting rod 331 to move up and down.

[0117] In some embodiments, there are two sets of automatic door opening and closing devices 30, and the two sets of automatic door opening and closing devices 30 are arranged on both sides of the fuselage 10 and the door body 20.

[0118] In the above embodiments, through the two sets of door opening and closing devices arranged on both sides of the fuselage 10 and the door body 20, the two sets of door opening and closing devices cooperate with each other to jointly control the opening and closing of the door body 20, so that the door body 20 is more balanced and stable during the opening and closing process, and the use experience is better.

[0119] This embodiment provides a dishwasher that can automatically open and close the door, which can realize the automatic opening and closing of the door body 20 of the dishwasher at all angles (0° - 89°). By adopting the method of slidingly connecting the fuselage 10 and the door body 20 with a connecting rod 331 of a fixed length, the technical effect that the connecting rod 331 moves relative to the fuselage 10 to drive the door body 20 to open and close and can stop the door body 20 at any opening angle is achieved, effectively solving the problems existing in the existing dishwashers that can only automatically close the door at a small angle and the door body 20 cannot be completely closed. In this embodiment, when the dishwasher receives an instruction to open or close the door, the dishwasher controller controls the driving mechanism 34 to drive the connecting rod mechanism 33 to act to open or close the door body 20. How the dishwasher receives the instruction can be through program control, torque sensor induction, vibration sensor induction, etc. This direction is not the focus of the present invention, so it will not be elaborated.

[0120] On both sides of the body 10 and the door 20 of the dishwasher provided in this embodiment, multiple slide rails are provided, namely the first slide rail 31 and the third slide rail 35 on the body 10, and the second slide rail 32 on the door 20. On one side of the third slide rail 35 close to the first slide rail 31, a driving mechanism 34 is provided. The driving mechanism 34 includes a first motor 341, a second motor 342, a first gear 343, a second gear 344, and a conveyor belt 345 engaged with the first gear 343 and the second gear 344. A connecting rod 331 connects the body 10 and the door 20. During the rotation of the door 20, it rotates around the first rotating shaft 3311 and the second rotating shaft 3312, that is, opening and closing the door. When the connecting rod 331 is in the position above the first slide rail 31 and the second slide rail 32, the dishwasher is in the closed state (the angle of the door 20 relative to the body 10 is 0°); when the connecting rod 331 is in the position below the first slide rail 31 and the second slide rail 32, the dishwasher is in the open state (the angle of the door 20 relative to the body 10 is 89°).

[0121] Combined Figures 1 to 10 As shown, for the steps of the door opening process, the specific movement process of the connecting rod 331 is as follows:

[0122] Step ①: When the door is in the closed state and the opening angle is 0°, the first rotating shaft 3311 and the second rotating shaft 3312 of the connecting rod 331 are at the top of the first slide rail 31 and the second slide rail 32.

[0123] Step ②: The motor starts to run. During the process of running to time t1, the opening angle is c1. During this process, the connecting rod 331 rotates counterclockwise around the second rotating shaft 3312. The first pulley 332 will slide down along the first slide rail 31, while the second pulley 333 remains in place on the second slide rail 32.

[0124] Step ③: When running to time t1, the inclination angle of the connecting rod 331 changes relative to the body 10, and at the same time the opening angle of the door 20 also changes. Between t1 and t2, the inclination angle of the connecting rod 331 does not change, but the inclination angle of the connecting rod 331 is not limited, but it is best to ensure that the relative position of the first rotating shaft 3311 is higher than that of the second rotating shaft 3312 during this process, because at this time the force driving the connecting rod 331 is at the third rotating shaft 3313, that is, the center of the connecting rod 331, which is convenient for converting the rotation center of the connecting rod 331 during the next movement process. As the position of the connecting rod 331 gradually moves downward, the angle of the door 20 also slowly increases, from c1 to c2.

[0125] Step ④: When running to time t2, the rotation center of the connecting rod 331 becomes the position of the first rotating shaft 3311. At this time, the first pulley 332 also slides down to the bottom of the first slide rail 31 and cannot move down any further. Therefore, with the first rotating shaft 3311 as the rotation center, the connecting rod 331 rotates clockwise as the opening angle of the door body 20 increases.

[0126] Step ⑤: Until the second pulley 333 of the second rotating shaft 3312 moves to the bottom of the second slide rail 32, at this time, the maximum opening and closing angle of the door body 20 is 89°, and the motor runs to time t3 and stops running.

[0127] In summary, the automatic door opening action is completed, and the automatic door closing action is opposite to the above steps.

[0128] It should be noted that in this embodiment, the numerical values of t1, t2, t3, c1, and c2 are not fixed and can be adjusted according to the needs by adjusting the running speed of the motor, thereby adjusting the opening speed and angle. The rotation center of the connecting rod 331 is the first rotating shaft 3311 or the second rotating shaft 3312. The third rotating shaft 3313 mainly provides driving force for the connecting rod 331. Between t0 and t1, the rotation center is the second rotating shaft 3312; between t2 and t3, the rotation center is the first rotating shaft 3311. Specifically, when the opening angle of the door body 20 is in the range of 0° to c1, the connecting rod 331 makes a circular motion with the second rotating shaft 3312 as the center, and the relative height of the first rotating shaft 3311 in space will gradually decrease. When the opening angle of the door body 20 is in the range of c1 to c2, the connecting rod 331 changes from circular motion to translation in the vertical direction. When the opening angle of the door body 20 is in the range of c2 to 89°, the connecting rod 331 changes from translational motion to circular motion with the first rotating shaft 3311 as the center. Between t0 and t1, because the connecting rod 331 makes a circular motion with the second rotating shaft 3312 as the center, the relative height of the first rotating shaft 3311 in space has decreased. But when reaching t1, the connecting rod 331 changes from circular motion to translation in the vertical direction, and the relative height of the first rotating shaft 3311 is higher than that of the second rotating shaft 3312. Therefore, after the connecting rod 331 makes a certain angle of circular motion, as long as the first rotating shaft 3311 is still higher than the second rotating shaft 3312, then between t1 and t2, the inclination angle of the connecting rod 331 will not change, ensuring that the position of the first rotating shaft 3311 is higher than that of the second rotating shaft 3312.

[0129] The automatic door opening and closing device 30 provided in this embodiment has the following advantages compared with the existing automatic door opening mechanism:

[0130] ① In the present utility model, a connecting rod 331 with a fixed length is used to connect the body 10 and the door body 20, and the opening and closing of the door body 20 is driven by controlling the up and down movement of the connecting rod 331. The reliability of the connecting rod 331 is higher than that of the tension spring, and the influence of the tension spring material on the opening and closing effect of the dishwasher door body 20 can be reduced.

[0131] ② In the prior art, the top push rod and the motor tension spring at the bottom need to work together to open and close the door. However, the utility model only needs to set a set of mechanisms on the side of the dishwasher to complete the two actions of opening and closing the door. The structure is simpler and the door opening and closing process is more convenient.

[0132] ③ The automatic door opening and closing device 30 provided by the utility model has an up-and-down movement of the connecting rod mechanism 33 in the process of driving the door body 20 to open and close, so there is no problem of excessive torque, and the door can be opened and closed at full angles, which effectively solves the problem that in the later stage of the door closing action of the existing automatic door opening device, the door body 20 will have a certain angle left and cannot be completely closed.

[0133] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A dishwasher, comprising a body (10), a door body (20), and an automatic door opening and closing device (30) arranged between the body (10) and the door body (20), characterized in that: The automatic door opening and closing device (30) comprises: A first slide rail (31) is arranged on the body (10); A second slide rail (32) is arranged on the door body (20); A connecting rod mechanism (33), one end of which is slidably connected to the first slide rail (31), and the other end of which is slidably connected to the second slide rail (32); A driving mechanism (34) is mounted on the body (10), the driving mechanism (34) having a power output component that moves up and down, and the middle portion of the connecting rod mechanism (33) is rotatably connected to the power output component; The driving mechanism (34) drives the connecting rod mechanism (33) to move up and down through the power output component, so that the connecting rod mechanism (33) slides between the first slide rail (31) and the second slide rail (32) in different tilt states to open or close the door body (20).

2. The dishwasher according to claim 1, characterized in that The first slide rail (31) is arranged along the vertical direction, the second slide rail (32) is arranged along the height direction of the door body (20), and the first slide rail (31) and the second slide rail (32) are partially staggered in the horizontal direction; The driving mechanism (34) drives the connecting rod mechanism (33) to move between an upper limit position located at the top of the first slide rail (31) and the second slide rail (32) and a lower limit position located at the bottom of the first slide rail (31) and the second slide rail (32); When the connecting rod mechanism (33) is at the upper limit position, the dishwasher is in a door-closed state; when the connecting rod mechanism (33) is at the lower limit position, the dishwasher is in a door-fully-open state.

3. The dishwasher according to claim 1, characterized in that The first slide rail (31) comprises a first slide groove which is vertically opened on the side of the fuselage (10); The second slide rail (32) comprises a second slide groove opened on the side of the door body (20) along the height direction of the door body (20).

4. The dishwasher according to claim 3, characterized in that: The connecting rod mechanism (33) comprises: Connecting rod (331); A first guide member, arranged at a first end of the connecting rod (331), the first guide member being slidably limited in the first sliding groove; The second guide member is arranged at the second end of the connecting rod (331), and the second guide member is slidably limited in the second sliding groove.

5. The dishwasher according to claim 4, characterized in that: A first rotating shaft (3311) is fixedly provided at one end of the connecting rod (331), and a second rotating shaft (3312) is fixedly provided at the other end; The first guide member includes a first pulley (332) rotatably connected to the first rotating shaft (3311), and the second guide member includes a second pulley (333) rotatably connected to the second rotating shaft (3312).

6. The dishwasher according to any one of claims 1 to 5, characterized in that: The bottom of the door body (20) is rotatably connected to the fuselage (10); When the dishwasher is in a door-closed state, the upper end of the first slide rail (31) is higher than the upper end of the second slide rail (32), and the lower end of the first slide rail (31) is higher than the lower end of the second slide rail (32).

7. The dishwasher according to any one of claims 1 to 5, characterized in that: The body (10) is also provided with a third slide rail (35), and the third slide rail (35) is located between the first slide rail (31) and the second slide rail (32); The power output component is slidably matched with the third slide rail (35), and can move up and down under the guidance of the third slide rail (35).

8. The dishwasher according to claim 7, characterized in that The third slide rail (35) comprises: A straight section (351) parallel to the first slide rail (31); The first curved section (352) and the second curved section (353) are arranged at two ends of the straight section (351), and both the first curved section (352) and the second curved section (353) are curved in a direction close to the first slide rail (31).

9. The dishwasher according to claim 7, characterized in that: The third slide rail (35) is a third slide groove provided on the side wall of the fuselage (10); The power output component comprises a sliding block (346) slidably connected in the third sliding groove, and a third rotating shaft (3313) rotatably connected to the sliding block (346) is provided in the middle of the connecting rod mechanism (33).

10. The dishwasher according to claim 9, characterized in that The driving mechanism (34) comprises: Power components; A transmission component, comprising a first gear (343) and a second gear (344) arranged at an interval, and a conveyor belt (345) sleeved between the first gear (343) and the second gear (344); The conveyor belt (345) is located on the side of the third slide rail (35), the first gear (343) and the second gear (344) are arranged corresponding to the two ends of the third slide rail (35), and the slider (346) is fixedly arranged on the conveyor belt (345); The power component drives the first gear (343) and the second gear (344) to rotate and drive the conveyor belt (345) to move, so that the slider (346) on the conveyor belt (345) can drive the connecting rod mechanism (33) to move up and down along the third slide rail (35).

11. The dishwasher according to claim 9, characterized in that The automatic door opening and closing devices (30) have two groups, and the two groups of automatic door opening and closing devices (30) are arranged on both sides of the machine body (10) and the door body (20).

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