Dish washing machine

Abstract

The invention provides a dishwasher. The dishwasher is installed in the cabinet in an embedded mode and comprises a door body which is hollow and opens and closes the inner space of the dishwasher, a noise reduction structure which can stretch out of the door body or retract into the door body in the radial direction of the door body is arranged in the door body, and the noise reduction structure stretches out of the door body and abuts against the inner wall of the cabinet when the door body is located at the closed position. The noise reduction structure is arranged in the door body, and the noise reduction structure can extend out of the door body in the radial direction of the door body to abut against the inner wall of the cabinet when the door body closes the internal space of the dish-washing machine, so that a gap between the dish-washing machine and the cabinet is sealed, and noise is prevented from leaking from the gap between the dish-washing machine and the cabinet; the noise of the dish washing machine is reduced, so that the user experience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a dishwasher. Background Art

[0002] The noise sources of the dishwasher during operation mainly include the noise of the washing pump, the noise of water flushing the dishes and the inner tank, the noise of the door vibration, etc. For example, when the dishwasher washes dishes, the spray arm in the existing dishwasher door sprays water onto the inner wall of the inner tank and generates noise; the dishwashers currently on the market generally use asphalt and cotton felt to stick the outside of the dishwasher inner tank to reduce noise radiation, but for embedded dishwashers, after the dishwasher is embedded in the cabinet, due to the requirements of embedded installation and design and manufacturing errors, etc., there is inevitably a gap between the embedded dishwasher and the cabinet, causing noise to leak from the gap between the dishwasher and the cabinet. The above-mentioned method of sticking asphalt and cotton felt on the outside of the dishwasher inner tank cannot reduce the noise leaking from the gap between the dishwasher and the cabinet, thereby affecting the user experience.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a dishwasher. By arranging a noise reduction structure inside the door body, the noise reduction structure can extend out of the door body in the radial direction of the door body and abut against the inner wall of the cabinet when the door body closes the internal space of the dishwasher, thereby sealing the gap between the dishwasher and the cabinet and preventing noise from leaking from the gap between the dishwasher and the cabinet, so that the noise of the dishwasher is reduced, thereby improving the user experience.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] The present invention provides a dishwasher, which is embeddedly installed in a cabinet and comprises a door body which is hollow inside and opens and closes the inner space of the dishwasher. A noise reduction structure is provided inside the door body which can extend out of the door body or retract into the door body along the radial direction of the door body. When the door body is in a closed position, the noise reduction structure extends out of the door body and abuts against the inner wall of the cabinet.

[0007] Furthermore, the noise reduction structure is a long strip structure, which includes a noise reduction strip extending along the circumference of the door body. The door body is provided with perforations in its circumference. The outer peripheral side of the noise reduction strip can extend out of the door body or retract into the door body through the perforations, and the inner peripheral side of the noise reduction strip is always located inside the door body.

[0008] Furthermore, the door body is square, and the bottom of the door body is hinged to the cabinet so that the door body can be flipped up and down on the cabinet. The noise reduction strip includes an upper noise reduction section extending left and right on the top of the door body and a left noise reduction section and a right noise reduction section extending up and down on the left and right sides of the door body. The three noise reduction sections are integrally formed or separately arranged.

[0009] Furthermore, it also includes a gear rack type transmission structure arranged in the door body and connected to the inner peripheral side of the noise reduction strip. Under the action of external force, the transmission structure drives the outer peripheral side of the noise reduction strip to extend out of the door body or retract into the door body.

[0010] Furthermore, the transmission structure includes an active rack, a driven rack connected to the inner circumference of the noise reduction strip, and a gear assembly that rotates on the door body and meshes with the active rack and the driven rack respectively. The active rack reciprocates along the axial direction of the door body under the action of external force, and the active rack drives the driven rack to reciprocate along the radial direction of the door body through the gear assembly.

[0011] Furthermore, the driving rack and the driven rack extend in the axial direction and radial direction of the door body respectively, the driving rack and the driven rack are arranged at a distance and close to the inner side of the door body relative to the driven rack, and the gear assembly includes a driving gear meshed with the side of the driving rack away from the door body opening and a driven gear meshed with the driven rack and the driving gear respectively.

[0012] Furthermore, the dishwasher includes an inner tank provided with a loading port, a protrusion is provided on the inner side of the door body, the protrusion is embedded in the inner tank through the loading port, the inner side of the door body abuts against the inner tank side wall around the loading port, the first end of the active rack can extend out of the door body or retract into the door body along the radial direction of the door body, the first end of the active rack collides with the inner tank side wall around the loading port and retracts into the door body when the door body is in a closed position, and extends out of the door body when the door body is in an open position.

[0013] Furthermore, the second end of the active rack is provided with a spring for providing a restoring force for the active rack to extend out of the door body. A baffle extending in the radial direction of the door body is provided inside the door body. The spring extends in the axial direction of the door body. Both ends of the spring are respectively abutted against the baffle and the second end of the active rack.

[0014] Furthermore, an outer shell is provided in the door body, a transmission structure and a baffle are provided in the outer shell, an active rack and a driven rack can pass through the outer shell, a limiting protrusion 1 is provided at the first end of the active rack, and a limiting protrusion 2 is provided on the inner wall of the outer shell, and the limiting protrusion 1 is abutted against the limiting protrusion 2 when the door body is in the open position.

[0015] Furthermore, the upper noise reduction section, the left noise reduction section and the right noise reduction section are all connected with a transmission structure.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0017] By arranging a noise reduction structure inside the door body, the noise reduction structure can extend out of the door body in the radial direction of the door body and abut against the inner wall of the cabinet when the door body closes the internal space of the dishwasher, thereby sealing the gap between the dishwasher and the cabinet, preventing noise from leaking from the gap between the dishwasher and the cabinet, and reducing the noise of the dishwasher, thereby improving the user experience.

[0018] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the assembly of a dishwasher and a cabinet provided by an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Cross-section at AA;

[0022] Figure 3 yes Figure 2 A magnified view at point A;

[0023] Figure 4 It is a schematic diagram of the assembly of the transmission structure and the housing provided by an embodiment of the present invention.

[0024] Icons: 1-cabinet; 2-door body; 21-perforation; 22-protrusion; 23-shell; 231-abutment plate; 232-baffle; 3-liner; 31-loading port; 4-noise reduction structure; 41-noise reduction strip; 411-upper noise reduction section; 412-left noise reduction section; 413-right noise reduction section; 5-transmission structure; 51-driving rack; 52-driven rack; 53-driving gear; 54-driven gear; 55-spring; 56-limiting groove; 57-first rotating shaft; 58-second rotating shaft.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-4 As shown, the present invention provides a dishwasher, which is embeddedly installed in a cabinet 1 and includes a door body 2 which is hollow inside and opens and closes the internal space of the dishwasher. A noise reduction structure 4 is provided inside the door body 2 and can extend out of the door body 2 or retract into the door body 2 along the radial direction of the door body 2. The noise reduction structure 4 extends out of the door body 2 and abuts against the inner wall of the cabinet 1 when the door body 2 is in a closed position.

[0030] In an embodiment of the present invention, a noise reduction structure 4 is provided inside the door body 2. When the door body 2 closes the internal space of the dishwasher, the noise reduction structure 4 can extend out of the door body 2 along the radial direction of the door body 2 and abut against the inner wall of the cabinet 1, thereby sealing the gap between the dishwasher and the cabinet 1 and preventing noise from leaking from the gap between the dishwasher and the cabinet 1, thereby reducing the noise of the dishwasher and improving the user experience.

[0031] The dishwasher door 2 is hollow inside to form a receiving cavity for receiving the noise reduction structure 4 or other electrical components. The dishwasher is an embedded dishwasher. For example, the dishwasher includes an inner tank 3. A loading port 31 is provided on the front side of the inner tank 3. The user puts tableware into or takes it out of the inner tank 3 through the loading port 31. The door body 2 is provided at the loading port 31 of the inner tank 3. The front side of the cabinet 1 is provided with an opening coaxial with the loading port 31. A protrusion 22 is formed on the inner side of the door body 2 along the axial direction of the door body 2. When the door body 2 is in the closed position, the protrusion 22 is embedded in the inner tank 3 through the loading port 31. The outer periphery of the protrusion 22 abuts against the inner wall of the inner tank 3 to achieve sealing of the loading port 31 of the inner tank 3. When the door body 2 is in the closed position, the door body 2 is embedded in the cabinet 1 through the opening. The outer periphery of the door body 2 abuts against the inner wall of the cabinet 1. The outer side of the door body 2 is flush with the front side of the cabinet 1 to achieve sealing of the opening, thereby achieving double sealing of the inner tank 3.

[0032] The bottom of the door body 2 is hinged to the cabinet 1 via a hinge structure, so that the door body 2 can be flipped up and down on the cabinet 1; the "inside" of the inner side of the door body 2 refers to the side of the door body 2 facing the inner tank 3 when the door body 2 is in the closed position, and the opposite side is the "outside", that is, the side of the door body 2 away from the inner tank 3.

[0033] When the door body 2 is in the closed position, the noise reduction structure 4 extends out of the door body 2 and abuts against the inner wall of the cabinet 1, thereby sealing the gap between the door body 2 and the cabinet 1. Therefore, the noise reduction structure 4 not only has a noise reduction effect, but also has a sealing effect to prevent water in the inner tank 3 from leaking from the gap, or to prevent external impurities or water from entering the inner tank 3. The noise reduction structure 4 is made of sound-absorbing material, and the noise reduction structure 4 has a certain elasticity. When it abuts against the inner wall of the cabinet 1, it can be squeezed and deformed, thereby further increasing the sealing strength between the noise reduction structure 4 and the cabinet 1.

[0034] like Figure 1-3 As shown, in an embodiment of the present invention, the noise reduction structure 4 is a long strip structure, and the noise reduction structure 4 includes a noise reduction strip 41, which extends along the circumference of the door body 2. The door body 2 is provided with a perforation 21 in its circumference. The outer peripheral side of the noise reduction strip 41 can extend out of the door body 2 or retract into the door body 2 through the perforation 21, and the inner peripheral side of the noise reduction strip 41 is always located inside the door body 2.

[0035] In the embodiment of the present invention, the noise reduction structure 4 adopts a long strip structure. It is sufficient to seal the gap between the outer periphery of the door body 2 and the inner periphery of the cabinet 1 to prevent noise from passing from the inside of the cabinet 1 through the gap to the outside of the cabinet 1. It is not necessary to use a noise reduction structure 4 with an excessively large area for sealing and noise reduction.

[0036] The gap between the door body 2 and the cabinet 1 is in the circumferential direction of the door body 2. Therefore, in order to increase the sealing coverage area of ​​the gap, the noise reduction strip 41 is extended along the circumferential direction of the door body 2, and the extension track of the noise reduction strip 41 is the same as the gap; the noise reduction strip 41 is square, so that the side wall of the noise reduction strip 41 abutting against the inner wall of the cabinet 1 is a horizontal smooth side wall, and the inner wall of the cabinet 1 is a horizontal smooth inner wall;

[0037] The noise reduction strip 41 extends along the circumferential direction of the door body 2, so that the noise reduction strip 41 has an inner side facing the inside of the door body 2 and an outer side facing the outside of the door body 2. The outer side of the noise reduction strip 41 is used to abut against the inner wall of the cabinet 1, and the inner side of the noise reduction strip 41 is always located inside the door body 2, preventing the inner side of the noise reduction strip 41 from extending out of the door body 2 while the outer side of the noise reduction strip 41 extends out of the door body 2, thereby avoiding the situation where the inner side of the noise reduction strip 41 is separated from the outside of the door body 2, resulting in the noise reduction strip 41 being unable to completely seal the gap between the outer periphery of the door body 2 and the inner periphery of the cabinet 1.

[0038] The noise reduction strip 41 is arranged inside the door body 2 in the following manner: the side wall of the door body 2 has a certain wall thickness, so that the through hole 21 opened on the side wall of the door body 2 has a certain length in the radial direction of the door body 2. Therefore, the noise reduction strip 41 can be at least partially embedded in the through hole 21 when it is inside the door body 2. The through hole 21 increases the stability of the noise reduction strip 41 inside the door body 2 on the one hand, and guides the noise reduction strip 41 to move out of the door body 2 on the other hand.

[0039] Furthermore, the door body 2 is square, and the bottom of the door body 2 is hinged to the cabinet 1, so that the door body 2 can be flipped up and down on the cabinet 1. The noise reduction strip 41 includes an upper noise reduction section 411 extending left and right at the top of the door body 2 and a left noise reduction section 412 and a right noise reduction section 413 extending up and down on the left and right sides of the door body 2. The three noise reduction sections are integrally formed or separately arranged.

[0040] The door body 2 is square. In order to allow the noise reduction strip 41 to freely enter and exit the door body 2, the noise reduction strip 41 is also square. Since the bottom of the door body 2 is hinged to the cabinet 1, in order to avoid affecting the rotation of the door body 2, the bottom of the noise reduction strip 41 is open, so that the noise reduction strip 41 is divided into an upper noise reduction section 411, a left noise reduction section 412 and a right noise reduction section 413. The upper noise reduction section 411 extends from the left side of the door body 2 to the right side of the door body 2, and the left noise reduction section 412 and the right noise reduction section 413 extend from the top of the door body 2 to the bottom of the door body 2, thereby maximizing the length of the noise reduction strip 41. Preferably, the upper noise reduction section 411, the left noise reduction section 412 and the right noise reduction section 413 are separately arranged to facilitate the disassembly and installation of the noise reduction strip 41 while facilitating the free movement of each noise reduction section without restriction on each other.

[0041] The upper side wall of the upper noise reduction section 411 is used to abut against the inner wall of the cabinet 1 , the left side wall of the left noise reduction section 412 is used to abut against the inner wall of the cabinet 1 , and the right side wall of the right noise reduction section 413 is used to abut against the inner wall of the cabinet 1 .

[0042] like Figure 2 and 3 As shown, in an embodiment of the present invention, it also includes a gear rack type transmission structure 5 arranged in the door body 2 and connected to the inner peripheral side of the noise reduction strip 41. Under the action of external force, the transmission structure 5 drives the outer peripheral side of the noise reduction strip 41 to extend out of the door body 2 or retract into the door body 2.

[0043] In the embodiment of the present invention, the transmission structure 5 is connected to the inner circumference of the noise reduction strip 41, driving the inner circumference of the noise reduction strip 41 to move, thereby driving the outer circumference of the noise reduction strip 41 to extend out of the door body 2 or retract into the door body 2. The transmission structure 5 adopts a gear rack type to increase the stability of the movement of the noise reduction strip 41.

[0044] Specifically, the transmission structure 5 includes an active rack 51, a driven rack 52 connected to the inner circumference of the noise reduction strip 41, and a gear assembly that rotates on the door body 2 and meshes with the active rack 51 and the driven rack 52, respectively. The active rack 51 reciprocates along the axial direction of the door body 2 under the action of external force, and the active rack 51 drives the driven rack 52 to reciprocate along the radial direction of the door body 2 via the gear assembly.

[0045] The active rack 51 performs linear reciprocating motion along the axial direction of the door body 2. The movement of the active rack 51 drives the gear assembly to rotate. The rotation of the gear assembly drives the driven rack 52 to perform linear reciprocating motion along the radial direction of the door body 2, thereby driving the noise reduction strip 41 to extend out of the door body 2 or retract into the door body 2 along the radial direction of the door body 2.

[0046] Furthermore, the driving rack 51 and the driven rack 52 extend in the axial direction and radial direction of the door body 2 respectively. The driving rack 51 and the driven rack 52 are arranged at a distance and are close to the inner side of the door body 2 relative to the driven rack 52. The gear assembly includes a driving gear 53 meshed with the side of the driving rack 51 away from the opening of the door body 2 and a driven gear 54 meshed with the driven rack 52 and the driving gear 53 respectively.

[0047] The active rack 51 and the driven rack 52 are arranged with a spacing therebetween so that the active rack 51 and the driven rack 52 do not intersect each other, thereby providing space for the reciprocating motion of the active rack 51. The extended line of the active rack 51 at the second end of the active rack 51 intersects with the driven rack 52.

[0048] Taking the transmission structure 5 connected to the above noise reduction strip 41 as an example, the driven rack 52 moves up and down in the radial direction of the door body 2 inside the door body 2, the gear assembly is arranged on the lower side of the driving rack 51, the driven gear 54 is arranged below the driving gear 53 and deviates to the outside of the door body 2, and the driven rack 52 located below the driving rack 51 is provided with transmission teeth; the axis of the driving gear 53 and the axis of the driven gear 54 are arranged in parallel and extend in the radial direction of the door body 2, and the connecting line of the axis of the driving gear 53 and the axis of the driven gear 54 intersects with the driving rack 51 and the driven rack 52 respectively;

[0049] In an embodiment of the present invention, the dishwasher includes an inner tank 3 provided with a loading port 31, a protrusion 22 is provided on the inner side of the door body 2, the protrusion 22 is embedded in the inner tank 3 through the loading port 31, the inner side of the door body 2 is abutted against the side wall of the inner tank 3 outside the loading port 31, and the first end of the active rack 51 can extend out of the door body 2 or retract into the door body 2 along the radial direction of the door body 2. When the door body 2 is in a closed position, the first end of the active rack 51 collides with the side wall of the inner tank 3 outside the loading port 31 and retracts into the door body 2, and extends out of the door body 2 when the door body 2 is in an open position.

[0050] In an embodiment of the present invention, the first end of the active rack 51 is close to the inner side of the door body 2, and the second end of the active rack 51 is away from the inner side of the door body 2. The first end of the active rack 51 extends out of the door body 2 when the door body 2 is in an open position, and collides with the side wall of the inner liner 3 at the outer periphery of the delivery port 31 and retracts into the door body 2 when the door body 2 is in a closed position. The inner side of the door body 2 and the side wall of the inner liner 3 at the outer periphery of the delivery port 31 are abutted against each other, and the impact force of the first end of the active rack 51 with the side wall of the inner liner 3 serves as an external force to drive the active rack 51, so that the first end of the active rack 51 moves toward the door body 2. There is no need to use an additional driving device to drive the first end of the active rack 51, which saves resources and realizes the linkage between the extension or retraction of the noise reduction rack and the opening or closing of the door body 2.

[0051] Taking the above noise reduction strip 41 connected to the transmission structure 5 as an example, when the door is closed, the first end of the active rack 51 hits the side wall of the inner liner 3 at the outer periphery of the delivery port 31, so that the active rack 51 moves toward the outer side of the door body 2, and the active rack 51 retracts into the door body 2. The movement of the active rack 51 drives the active rack 51 to rotate toward the outer side of the door body 2, and the rotation of the active gear 53 toward the outer side of the door body 2 drives the driven gear 54 to rotate toward the inner side of the door body 2. The rotation of the driven gear 54 toward the inner side of the door body 2 drives the driven rack 52 to move upward, thereby driving the noise reduction strip 41 to extend upward out of the door body 2. When the door is opened, the various components move in opposite directions respectively, and finally the first end of the active rack 51 is extended out of the door body 2.

[0052] Furthermore, the second end of the active rack 51 is provided with a spring 55 for providing a restoring force for the active rack 51 to extend out of the door body 2. A baffle 232 extending along the radial direction of the door body 2 is provided inside the door body 2. The spring 55 extends along the axial direction of the door body 2. Both ends of the spring 55 are respectively abutted against the baffle 232 and the second end of the active rack 51.

[0053] When the door is closed, the spring 55 is in a compressed state. When the door is opened, the spring 55 returns to its original state, causing the first end of the active rack 51 to extend out of the door body 2, driving the active gear 53, the driven gear 54 and the driven rack 52 to perform related actions, and finally realizing the retraction of the noise reduction strip 41 into the door body 2.

[0054] A limiting groove 56 is provided on the active rack 51, and the groove opening of the limiting groove 56 is set toward the baffle 232. One end of the spring 55 is connected to the bottom of the limiting groove 56, and the other end is connected to the side of the baffle 232 facing the limiting groove 56. The spring 55 always moves in the limiting groove 56 during the compression or restoration process. The limiting groove 56 has a guiding effect on the movement of the spring 55, thereby improving the accuracy of the first end of the active rack 51 extending out of the door body 2 or retracting into the door body 2.

[0055] like Figure 2 , Figure 3 and Figure 4 As shown, further, a shell 23 is provided in the door body 2, a transmission structure 5 and a baffle 232 are provided in the shell 23, an active rack 51 and a driven rack 52 can pass through the shell 23, a limiting protrusion 1 is provided at the second end of the active rack 51, and a limiting protrusion 2 is provided on the inner wall of the shell 23, and the limiting protrusion 1 is abutted against the limiting protrusion 2 when the door body 2 is in the open position.

[0056] The outer shell 23 can protect and hide the transmission structure 5 to prevent the transmission structure 5 from being corroded by the water in the inner tank 3 or the external water, so that the transmission structure 5 can accurately drive the noise reduction strip 41 to move.

[0057] The side wall of the housing 23 is provided with a baffle 232 along the radial direction of the door body 2; the inner wall of the housing 23 is provided with a first slide rail for sliding with the active rack 51 and a second slide rail for sliding with the driven rack 52, and the first slide rail and the second slide rail are groove-shaped to provide a guide for the sliding of the active rack 51 and the driven rack 52;

[0058] A first rotating shaft 57 is provided on the driving gear 53, and a second rotating shaft 58 is provided on the driven gear 54. The first rotating shaft 57 and the second rotating shaft 58 are arranged in parallel. One end of the first rotating shaft 57 is connected to the axis of the driving gear 53, and the other end passes through the shell 23 and is rotatably connected to the side wall of the shell 23. One end of the second rotating shaft 58 is connected to the axis of the driven gear 54, and the other end passes through the shell 23 and is rotatably connected to the side wall of the shell 23. The first rotating shaft 57 and the second rotating shaft 58 are rotatably connected to the same side wall of the shell 23.

[0059] An opening is provided on the side wall of the shell 23 through which the first end of the active rack 51 passes. The first end of the active rack 51 passes through the shell 23 through the opening. The shell 23 is bent outward on both sides of the opening to form two abutment plates 231. The two abutment plates 231 extend along the radial direction of the door body 2 and are used to abut against the side wall of the inner liner 3 at the outer periphery of the loading port 31, thereby increasing the abutment area between the side wall of the inner liner 3.

[0060] The first end of the active rack 51 is in the housing 23 when the door body 2 is closed, and the first end of the active rack 51 passes through the housing 23 and the door body 2 in sequence when the door body 2 is opened. The driven rack 52 passes through the housing 23 and the door body 2 in sequence when the door body 2 is closed, and the driven rack 52 is in the housing 23 when the door body 2 is opened. The noise reduction rack is always in the door body 2.

[0061] After the first end of the active rack 51 extends a certain distance outside the door body 2 , the limiting protrusion 1 abuts against the limiting protrusion 2 to prevent the active rack 51 from continuing to extend outside the door body 2 , thereby preventing the active rack 51 from detaching from the housing 23 or even detaching from the door body 2 .

[0062] The upper noise reduction section 411, the left noise reduction section 412 and the right noise reduction section 413 are all connected with the transmission structure 5. Specifically, the upper noise reduction section 411 is connected with the first transmission structure 5, which drives the upper noise reduction section 411 to move up and down. The left noise reduction section 412 is connected with the second transmission structure 5, which drives the left noise reduction section 412 to move left and right. The right noise reduction section 413 is connected with the third transmission structure 5, which drives the left noise reduction section 412 to move left and right. The first transmission structure 5, the second transmission structure 5 and the third transmission structure 5 can act simultaneously or at different times.

[0063] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A dishwasher, which is embedded in a cabinet and includes a door body with a hollow interior for opening and closing the interior space of the dishwasher, characterized in that: A noise reduction structure is provided inside the door body and can be extended out of the door body or retracted into the door body along the radial direction of the door body. When the door body is in a closed position, the noise reduction structure extends out of the door body and abuts against the inner wall of the cabinet.

2. The dishwasher according to claim 1, characterized in that The noise reduction structure is a long strip structure, which includes a noise reduction strip. The noise reduction strip extends along the circumference of the door body. The door body is provided with perforations on its circumference. The outer peripheral side of the noise reduction strip can extend out of the door body or retract into the door body through the perforations, and the inner peripheral side of the noise reduction strip is always located inside the door body.

3. The dishwasher according to claim 2, characterized in that: The door body is square and the bottom of the door body is hinged to the cabinet so that the door body can be flipped up and down on the cabinet. The noise reduction strip includes an upper noise reduction section extending left and right at the top of the door body and a left noise reduction section and a right noise reduction section extending up and down on the left and right sides of the door body. The three noise reduction sections are integrally formed or separately arranged.

4. The dishwasher according to any one of claims 1 to 3, characterized in that: It also includes a gear rack type transmission structure arranged in the door body and connected to the inner peripheral side of the noise reduction strip. Under the action of external force, the transmission structure drives the outer peripheral side of the noise reduction strip to extend out of the door body or retract into the door body.

5. The dishwasher according to claim 4, characterized in that: The transmission structure includes an active rack, a driven rack connected to the inner circumference of the noise reduction strip, and a gear assembly that rotates on the door body and meshes with the active rack and the driven rack respectively. The active rack reciprocates along the axial direction of the door body under the action of external force, and the active rack drives the driven rack to reciprocate along the radial direction of the door body through the gear assembly.

6. The dishwasher according to claim 5, characterized in that The driving rack and the driven rack extend in the axial direction and radial direction of the door body respectively. The driving rack and the driven rack are arranged at a distance and are close to the inner side of the door body relative to the driven rack. The gear assembly includes a driving gear meshed with the side of the driving rack away from the door body opening and a driven gear meshed with the driven rack and the driving gear respectively.

7. The dishwasher according to claim 6, characterized in that The dishwasher includes an inner tank with a loading port, a protrusion is provided on the inner side of a door body, the protrusion is embedded in the inner tank through the loading port, the inner side of the door body abuts against the inner tank side wall around the loading port, the first end of the active rack can extend out of the door body or retract into the door body along the radial direction of the door body, the first end of the active rack collides with the inner tank side wall around the loading port and retracts into the door body when the door body is in a closed position, and extends out of the door body when the door body is in an open position.

8. The dishwasher according to claim 7, characterized in that The second end of the active rack is provided with a spring for providing restoring force for the active rack to extend out of the door body. A baffle extending in the radial direction of the door body is provided in the door body. The spring extends in the axial direction of the door body. Both ends of the spring are respectively abutted against the baffle and the second end of the active rack.

9. The dishwasher according to claim 8, characterized in that A shell is provided in the door body, a transmission structure and a baffle are provided in the shell, an active rack and a driven rack can pass through the shell, a limiting protrusion 1 is provided at the first end of the active rack, and a limiting protrusion 2 is provided on the inner wall of the shell. When the door body is in the open position, the limiting protrusion 1 abuts against the limiting protrusion 2.

10. The dishwasher according to any one of claims 5 to 9, characterized in that: The upper noise reduction section, the left noise reduction section and the right noise reduction section are all connected with a transmission structure.

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