A drawer-type dishwasher

Abstract

The present invention discloses a drawer - type dishwasher, comprising: a housing, a drawer that can be pushed into / pulled out of the housing, and a sealing cover arranged above the top opening of the drawer. It further includes: an eccentric mechanism rotatably arranged in the housing and connected to the sealing cover; a triggering mechanism arranged on the drawer. During the process of pushing and pulling the drawer, the triggering mechanism cooperates with the eccentric mechanism to drive the eccentric mechanism to perform eccentric motion, driving the sealing cover to move up and down to open and seal the opening of the drawer. For the dishwasher provided by the present invention, during the process of pushing and pulling the drawer, the triggering mechanism abuts and cooperates with the eccentric mechanism to drive the eccentric mechanism to rotate, and the sealing cover will move up and down with the rotation of the eccentric mechanism to automatically seal / separate from the top opening of the drawer, achieving a manual mechanical floating seal, which not only reduces costs but also has higher safety, and the structural design is simple and reasonable.

Description

Technical Field

[0001] The present invention belongs to the field of dishwashers, and more specifically, relates to a drawer-type dishwasher. Background Art

[0002] The drawer of the drawer-type dishwasher is arranged with an upward opening so that the user can place or take out tableware from the top opening, and the drawer is slidably arranged in the housing. When the dishwasher is working, in order to prevent the water used for washing tableware from splashing out, the top opening of the drawer must be sealed. The existing sealing method generally sets a sealing plate on the top of the outer shell, and a whole piece or a ring of elastic sealing ring is arranged on the bottom surface of the sealing plate. The sealing plate can move up and down. When the drawer is opened, in order to avoid interference between the sealing plate and the drawer, the sealing plate needs to move away to reduce the friction force, and the sealing plate moves upward, so that the drawer can smoothly enter and exit the outer shell; after the drawer is closed, the sealing plate moves downward so that the sealing ring on the sealing plate is closely matched with the periphery of the top opening of the drawer to ensure sealing.

[0003] The invention patent with application number 201711259856.0 discloses a drawer-type dishwasher, which includes a drawer installed on the cabinet body and capable of being pulled out and opened outward; a sealing cover is installed in the cabinet body, and the sealing cover can generate telescopic displacement driven by a driving device. The cabinet body is also provided with a detection device for detecting whether the drawer is pushed into the cabinet body to the working position, so that when it is detected that the drawer is pushed into the cabinet body and reaches the working position, the driving device works to control the sealing cover to be correspondingly buckled at the opening of the drawer. For the drawer-type dishwasher disclosed in this application, the method of using a motor drive to realize the up and down floating of the sealing cover not only has complex operation, but also has a high cost of using a motor and increases the risk of electric leakage.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a drawer-type dishwasher with a manual mechanical floating seal that has low cost and high safety.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0007] A drawer-type dishwasher includes: a housing, a drawer that can be pushed into / pulled out of the housing, and a sealing cover arranged above the opening at the top of the drawer, and further includes:

[0008] An eccentric mechanism, rotatably arranged in the housing and connected to the sealing cover;

[0009] The triggering mechanism is arranged on the drawer. During the process of pushing and pulling the drawer, the triggering mechanism cooperates with the eccentric mechanism to drive the eccentric motion of the eccentric mechanism, driving the sealing cover to move up and down to open and seal the opening of the drawer.

[0010] Furthermore, the triggering mechanism has a triggering part, and the eccentric mechanism is a cam rotatably connected to the inner wall of the housing. The cam has a stopping part that cooperates with the triggering part. During the process of pushing and pulling the drawer, the triggering part is in stopping cooperation with the stopping part to drive the eccentric mechanism to rotate.

[0011] Furthermore, the stopping part is an opening groove formed by the inward depression of the outer edge part of the cam, and the triggering part is a push-pull ring fixed on the outer wall of the drawer. During the process of pushing and pulling the drawer, the push-pull ring respectively stops on the opposite two wall surfaces of the opening groove to drive the cam to rotate clockwise or counterclockwise.

[0012] Furthermore, a rotating shaft seat is fixedly arranged on the inner wall of the housing. The cam is rotatably connected in the rotating shaft seat. The rotating shaft seat includes a bottom plate and side plates connected to the opposite two sides of the bottom plate. A rotating shaft is arranged on the side plates, and a rotating shaft hole cooperating with the rotating shaft is arranged on the lower side of the cam.

[0013] Furthermore, a reset mechanism is arranged between the cam and the housing;

[0014] Preferably, the reset mechanism is a spring connected between the cam and the rotating shaft seat. The bottom plate of the rotating shaft seat extends outward near the triggering mechanism side to form an extension plate, and a hooking hole is formed on the extension plate. One end of the spring is hooked between the hooking hole and the outer edge of the extension plate, and the other end is hooked on the cam.

[0015] Furthermore, the eccentric mechanism is movably connected to the sealing cover through a connecting rod; preferably, the connecting rod is respectively hinged to the eccentric mechanism and the sealing cover.

[0016] Furthermore, a first hinge hole cooperating with the eccentric mechanism is arranged at the lower end of the connecting rod, and a hinge shaft cooperating with the first hinge hole is arranged on the eccentric mechanism.

[0017] Furthermore, a second hinge hole cooperating with the sealing cover is arranged at the upper end of the connecting rod. The sealing cover includes a sealing frame and a sealing gasket arranged in the sealing frame. Along the pushing and pulling direction of the drawer, a support frame is respectively fixedly arranged on both sides of the sealing frame. One end of the support frame is fixedly connected to the sealing frame, and the other end is hinged and cooperated with the second hinge hole of the connecting rod.

[0018] Further, the support frame includes a cross bar and two inclined bars. The cross bar is fixedly connected to the sealing frame. The upper ends of the two inclined bars are respectively connected to the two ends of the cross bar, and the lower ends of the two inclined bars are connected and fixed to form a converging portion.

[0019] The upper end of the connecting rod has a plugging groove with an upward opening for plugging and matching with the converging portion. The second hinge holes are opened on the opposite side walls of the plugging groove, and the converging portion is correspondingly provided with hinge holes for cooperating with the second hinge holes.

[0020] Further, a plurality of guide rods are arranged below the sealing frame, and guide sleeves for the guide rods to slide up and down are correspondingly arranged on the inner wall of the housing.

[0021] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0022] The drawer - type dishwasher provided by the present invention is provided with an eccentric mechanism movably connected to a sealing cover in a housing. The eccentric mechanism is rotatably arranged in the housing. A triggering mechanism for driving the eccentric mechanism to rotate is arranged on the drawer. During the process of pushing and pulling the drawer, the triggering mechanism abuts and cooperates with the eccentric mechanism to drive the eccentric mechanism to rotate. The sealing cover will move up and down with the rotation of the eccentric mechanism, automatically sealing / disengaging from the top opening of the drawer, realizing a manual mechanical floating seal, which not only reduces the cost but also has higher safety, and the structural design is simple and reasonable.

[0023] The following further describes in detail the specific embodiments of the present invention with reference to the drawings. Description of the Drawings

[0024] The drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0025] Figure 1 is an exploded view of the dishwasher of the present invention;

[0026] Figure 2 is a schematic structural diagram of the cooperation between the drawer, the sealing cover and the eccentric mechanism of the present invention;

[0027] Figure 3 is a schematic structural diagram of the drawer of the present invention;

[0028] Figure 4 is a schematic structural diagram of the cooperation between the eccentric mechanism and the triggering mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the principle of pulling out the drawer of the present invention;

[0030] Figure 6 It is a schematic diagram of the principle of pushing in the drawer of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the sealing frame of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the connecting rod of the present invention;

[0033] Figure 9 It is a schematic diagram of the structure of the cam of the present invention;

[0034] Figure 10 It is a schematic diagram of the structure of the rotating shaft seat of the present invention;

[0035] In the figure: 1, mounting plate; 2, drawer; 3, triggering mechanism; 31, push-pull ring; 32, lock block; 4, cam; 41, opening groove; 42, rotating shaft hole; 5, connecting rod; 51, first hinge hole; 52, insertion slot; 521, second hinge hole; 6, sealing cover; 61, sealing frame; 62, guide rod; 7, support frame; 71, cross bar; 72, inclined bar; 73, longitudinal bar; 74, hinge hole; 8, rotating shaft seat; 81, bottom plate; 82, side plate; 83, rotating shaft; 84, hanging hole; 9, spring; 10, housing; 101, guide sleeve.

[0036] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying 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.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] As Figures 1 to 10 shown, the present invention provides a drawer-type dishwasher, including: a housing 10, the front side of the housing 10 is open; a drawer 2, the top of which is open for placing and removing tableware, and the drawer 2 can be pushed into / pulled out of the housing 10 from the open end of the housing 10; a sealing cover 6, arranged above the top opening of the drawer 2 for sealing the drawer 2. The dishwasher further includes: an eccentric mechanism, rotatably arranged in the housing 10 and connected to the sealing cover 6; a triggering mechanism 3, arranged on the drawer 2, during the process of pushing or pulling the drawer 2, the triggering mechanism 3 cooperates with the eccentric mechanism to drive the eccentric mechanism to perform eccentric motion, driving the sealing cover 6 to move up and down to open and seal the opening of the drawer 2. For the dishwasher provided by the present invention, the sealing cover moves up and down as the drawer is pushed in or pulled out, automatically sealing and opening the top opening of the drawer, realizing a manual mechanical floating seal, which not only has a low cost, but also effectively avoids the safety hazards brought by using a motor drive in the prior art and reduces the risk of electric leakage.

[0041] Further, the triggering mechanism 3 has a triggering part that can drive the eccentric mechanism to perform eccentric motion. The eccentric mechanism is a cam 4 rotatably connected to the inner wall of the housing 10. The cam 4 has a stopping part that cooperates with the triggering part. During the process of pushing or pulling the drawer, the triggering part is stopped and cooperated with the stopping part to drive the eccentric mechanism to rotate. For the dishwasher provided by the present invention, when the drawer is pushed or pulled, the triggering mechanism moves back and forth accordingly, is stopped and cooperated with the stopping part of the cam, pushes or pulls the cam to rotate, and the sealing cover moves up and down as the cam rotates to open and seal the top opening of the drawer. The structural design is simple and reasonable.

[0042] Further, in combination with Figures 1 to 6 、 Figure 9The stop portion is an open groove 41 formed by the outer edge of the cam 4 being recessed inwards. The open groove 41 is roughly U-shaped. In the natural state, the opening of the open groove 41 is tilted upwards corresponding to the position of the trigger portion. The trigger portion is a push-pull ring 31 fixed on the outer wall of the drawer 2. The trigger mechanism 3 includes a lock block 32 fixed on the outer wall of the drawer 2 and a push-pull ring 31 arranged on the lock block 32. The push-pull ring 31 is in the shape of a Chinese character "匚". The push-pull ring 31 is arranged on the wall surface of the lock block 32 facing the cam 4. The push-pull ring 31 includes a push-pull arm arranged horizontally in the middle and a connecting arm connected to both ends of the push-pull arm. The ends of the connecting arms on both sides are fixedly connected to the lock block 32. Along the push-pull direction of the drawer 2, the trigger mechanism 3 is arranged on the outer walls of the drawer 2 on both sides and is arranged at a position close to the open end of the shell 10.

[0043] In the process of pushing and pulling the drawer, the push-pull arms of the push-pull ring 31 respectively stop on the two opposite walls of the opening groove 41, driving the cam 4 to rotate clockwise or counterclockwise. Figure 3 , Figure 4 , Figure 9 As shown in , the opening groove 41 includes a first stop wall close to the open side of the shell 10 and a second stop wall relatively far away from the open side of the shell 10. When the drawer is pushed in, the push-pull arm of the push-pull ring 31 abuts against the second stop wall, pushing the cam 4 to rotate counterclockwise, and the sealing cover 6 will move downward accordingly. When the drawer 2 is pushed into place, the sealing cover 6 will be completely snapped and sealed on the top opening of the drawer 2; when the drawer is pulled out, the push-pull arm of the push-pull ring 31 separates from the second stop wall and abuts against the first stop wall. The push-pull ring 31 is integrally mounted on the first stop wall, driving the cam 4 to rotate clockwise, and the sealing cover 6 will move upward accordingly, disengaging from the top opening of the drawer 2 to reduce friction, thereby allowing the drawer 2 to smoothly enter and exit the shell 10.

[0044] Preferably, a reset mechanism is provided between the cam 4 and the housing 10, and when the drawer is pushed in, the dishwasher is reset by Figure 5 Transformed into Figure 6 When the drawer 2 is in the state, the cam 4 will rotate counterclockwise under the action of the thrust between the push-pull ring 31 and the second stop wall, and the sealing cover 6 will move downward accordingly. When the drawer 2 is pushed in place, it will seal the top opening of the drawer 2; when the drawer is pulled out, since the push-pull ring 31 is separated from the inner wall surface of the second stop wall, there is no relative force between the two, and the cam 4 will rotate clockwise under the action of the reset mechanism to reset to the original state, and the sealing cover 6 will move upward accordingly and detach from the top opening of the drawer 2, and the dishwasher is Figure 6 Transformed into Figure 5 The reset mechanism and push-pull ring will exert a double force on the cam, so that the cam can be reset and rotated smoothly.

[0045] Further, in combination with Figure 4 and Figure 10 , a rotating shaft seat 8 is fixedly arranged on the inner wall of the housing 10. The cam 4 is rotatably connected in the rotating shaft seat 8. The rotating shaft seat 8 includes a bottom plate 81 and side plates 82 connected to opposite sides of the bottom plate 8. A rotating shaft 83 is arranged on the side plate 82. A rotating shaft hole 42 matching with the rotating shaft 83 is arranged on the lower side of the cam 4. The cam 4 is rotatably connected to the inner wall of the housing 10 through the rotating shaft seat 8.

[0046] Further, in combination with Figure 4 As shown, the rotating shaft seat 8 and the housing 10 are fixedly connected through a mounting plate 1. The mounting plate 1 includes a horizontally arranged first mounting plate and a vertically arranged second mounting plate vertically connected below the first mounting plate. The first mounting plate is supported and fixed on the lower surface of the bottom plate 81 of the rotating shaft seat 8. The outer wall surface of the second mounting plate is attached to and fixedly integrated with the inner wall of the housing 10. The mounting plate and the housing can be fixedly integrated by means of screws or welding.

[0047] Preferably, in combination with Figures 4 to 6 As shown, the reset mechanism is a spring 9 connected between the cam 4 and the rotating shaft seat 8. An extension plate extends outward from the bottom plate 81 of the rotating shaft seat 8 near the trigger mechanism 3. A hook hole 84 is formed on the extension plate. One end of the spring 9 is hooked between the hook hole 84 and the outer edge of the extension plate, and the other end is hooked on the cam 4. The outer edge of the extension plate includes two side edges and a transverse edge connecting the two side edges. The hook hole 84 is a long hole arranged near the transverse edge of the extension plate. One end of the spring 9 is hooked between the long hook hole 84 and the transverse edge of the extension plate, and the other end is hooked on the hook portion on the cam 4.

[0048] Further, in combination with Figures 1 to 6 As shown, the eccentric mechanism and the sealing cover 6 are movably connected through a connecting rod 5; preferably, the connecting rod 5 is respectively hinged to the eccentric mechanism and the sealing cover 6. A first hinge hole 51 for hinged cooperation with the eccentric mechanism is arranged at the lower end of the connecting rod 5. A hinge shaft matching with the first hinge hole 51 is arranged on the eccentric mechanism.

[0049] Further, in combination with 4 and Figure 9As shown in the figure, the cam 4 in the present invention is a triangular cam. The cam 4 includes three side surfaces that are connected to each other in pairs, smooth transition corners connected at the intersections of adjacent side surfaces, a first connecting wall surface and a second connecting wall surface connected between the two side edges of these three side surfaces. The opening slot 41, the hinge point hinged to the connecting rod 5, and the rotation point rotatably connected to the rotating shaft seat 8 are respectively arranged at the positions of the three corners of the cam 4. The cam 4 is longitudinally arranged in the housing 10. Among them, the lower corner of the cam 4 cooperates with the rotating shaft seat 8, and a rotating shaft hole 42 rotatably connected to the rotating shaft seat 8 is provided. The opening slot 41 is arranged at the position of the upper corner, and a hinge shaft hinged to the connecting rod 5 is arranged at the position of the side corner.

[0050] Preferably, the cam 4 is provided with a hollow sandwich structure. It is partially hollow between the first connecting wall surface and the second connecting wall surface. The side surfaces of the cam 4 communicate with the hollow sandwich. The cam at the opening slot is solid. The hinge shaft connected to the connecting rod 5 and the hook part connected to the spring 9 are both arranged inside the hollow sandwich of the cam 4. The hook part is a hook rod arranged at the upper position inside the cam 4. The hook rod and the hinge shaft are both arranged inside the cam to avoid being exposed and affecting the overall aesthetics.

[0051] More preferably, a limiting rod is arranged at the position of the inner wall of the housing 10 corresponding to the cam 4 to limit the extreme position of the rotation of the cam 4. The limiting rods are correspondingly arranged on both sides of the cam 4 to limit the rotation angles of the cam 4 in both the clockwise and counterclockwise directions, and thus can limit the displacement of the sealing cover moving upward or downward.

[0052] Furthermore, in combination with Figure 8 , a second hinge hole 521 hinged to the sealing cover 6 is arranged at the upper end of the connecting rod 5. The sealing cover 6 includes a sealing frame 61 and a sealing gasket arranged inside the sealing frame 61. Along the pushing and pulling direction of the drawer 2, a support frame 7 is fixedly arranged on both sides of the sealing frame 61 respectively. One end of the support frame 7 is fixedly connected to the sealing frame 61, and the other end is hinged to the second hinge hole 521 of the connecting rod 5.

[0053] Furthermore, in combination with Figure 7As shown in the figure, the support frame 7 includes a cross bar 71 and two inclined bars 72. The cross bar 71 is fixedly connected to the sealing frame 61. The upper ends of the two inclined bars 72 are respectively connected to the two ends of the cross bar 71. The lower ends of the two inclined bars 72 are connected and fixed to form a converging part. The upper end of the connecting rod 5 has a plugging slot 52 with an upward opening for the converging part to be plugged and matched. The second hinge holes 521 are opened on the opposite side walls of the plugging slot 52. The converging part is correspondingly provided with hinge holes 74 that cooperate with the second hinge holes 521. The second hinge holes 521 and the hinge holes 74 are in corresponding positions and are connected and matched by a shaft. The plugging slot 52 provided at the upper end of the connecting rod 5 plays a certain role in supporting and limiting the sealing cover 6.

[0054] Furthermore, a plurality of guide rods 62 are provided below the sealing frame 61. The inner wall of the housing 10 is correspondingly provided with guide sleeves 102 for the guide rods 62 to slide up and down. The guide sleeves 102 are longitudinally arranged on the inner wall of the housing 10. There are four guide rods 62, which are arranged at the four corner positions of the sealing frame 61. The inner wall of the housing 10 is correspondingly provided with guide sleeves 102 that cooperate with the guide rods 62. The inside of the guide sleeves 102 is hollowed out to form a hollow channel for the guide rods 62 to slide up and down. By providing the guide rods 62 and the guide sleeves 102, it can play a certain role in restricting the moving direction of the sealing cover 6, ensuring that the sealing cover 6 is always in a state of moving up and down, and avoiding that under the action of the triggering mechanism and the eccentric mechanism, the sealing cover will displace in other directions and deviate from the position directly above the top opening of the drawer 2, so as to not achieve the purpose of sealing the opening of the drawer.

[0055] Furthermore, along the pushing and pulling direction of the drawer, the eccentric mechanisms are respectively arranged on both sides of the housing. Triggering mechanisms are correspondingly arranged on the outer walls of both sides of the drawer to ensure the balance and stability of the sealing cover when it is opened and closed.

[0056] The drawer-type dishwasher provided by the present invention is provided with an eccentric mechanism movably connected to the sealing cover in the housing. The eccentric mechanism is rotatably arranged in the housing. A triggering mechanism capable of driving the eccentric mechanism to rotate is arranged on the drawer. During the process of pushing and pulling the drawer, the triggering mechanism abuts and cooperates with the eccentric mechanism, driving the eccentric mechanism to rotate. The sealing cover will move up and down with the rotation of the eccentric mechanism, automatically sealing / separating from the top opening of the drawer, realizing a manual mechanical floating seal, which not only reduces the cost, but also has higher safety, and the structural design is simple and reasonable.

[0057] The above are only the preferred embodiments of the present invention, and there is no restriction on the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A drawer-type dishwasher, comprising: A housing, a drawer that can be pushed into / pulled out of the housing, and a sealing cover provided above the top opening of the drawer, characterized in that it further comprises: An eccentric mechanism rotatably arranged in the housing and connected to the sealing cover; A trigger mechanism arranged on the drawer. During the process of pushing and pulling the drawer, the trigger mechanism cooperates with the eccentric mechanism to drive the eccentric mechanism to perform eccentric motion, driving the sealing cover to move up and down to open and seal the opening of the drawer; The trigger mechanism has a trigger part, the eccentric mechanism is a cam rotatably connected to the inner wall of the housing, and the cam has a stop part that cooperates with the trigger part. During the process of pushing and pulling the drawer, the trigger part is stopped and cooperated on the stop part to drive the eccentric mechanism to rotate; The stop part is an opening groove formed by inward depression of the outer edge part of the cam, and the trigger part is a push-pull ring fixed on the outer wall of the drawer. During the process of pushing and pulling the drawer, the push-pull ring is respectively stopped on the opposite two wall surfaces of the opening groove to drive the cam to rotate clockwise or counterclockwise.

2. The dishwasher according to claim 1, characterized in that: A rotating shaft seat is fixedly arranged on the inner wall of the housing, the cam is rotatably connected in the rotating shaft seat, the rotating shaft seat includes a bottom plate and side plates connected to opposite sides of the bottom plate, a rotating shaft is arranged on the side plates, and a rotating shaft hole matched with the rotating shaft is arranged on the lower side of the cam.

3. The dishwasher according to claim 2, characterized in that: A reset mechanism is arranged between the cam and the housing.

4. The dishwasher according to claim 3, characterized in that: The reset mechanism is a spring connected between the cam and the rotating shaft seat. An extension plate extends outward from the bottom plate of the rotating shaft seat near the trigger mechanism side, and a hanging hole is formed on the extension plate. One end of the spring is hooked between the hanging hole and the outer edge of the extension plate, and the other end is hooked on the cam.

5. The dishwasher according to any one of claims 1-4, characterized in that: The eccentric mechanism and the sealing cover are movably connected through a connecting rod.

6. The dishwasher according to claim 5, characterized in that: The connecting rod is respectively hinged to the eccentric mechanism and the sealing cover.

7. The dishwasher according to claim 5, characterized in that: The lower end of the connecting rod is provided with a first hinge hole hinged and matched with the eccentric mechanism, and a hinge shaft matched with the first hinge hole is arranged on the eccentric mechanism.

8. The dishwasher according to claim 5, characterized in that: The upper end of the connecting rod is provided with a second hinge hole hinged and matched with the sealing cover. The sealing cover includes a sealing frame and a sealing gasket arranged in the sealing frame. Along the pushing and pulling direction of the drawer, a support frame is respectively fixedly arranged on both sides of the sealing frame. One end of the support frame is fixedly connected to the sealing frame, and the other end is hinged and matched with the second hinge hole of the connecting rod.

9. The dishwasher according to claim 8, characterized in that: The support frame includes a cross bar and two inclined bars. The cross bar is fixedly connected to the sealing frame. The upper ends of the two inclined bars are respectively connected to both ends of the cross bar, and the lower ends of the two inclined bars are connected and fixed to form a converging part; The upper end of the connecting rod has a plugging groove with an upward opening for plugging and matching with the collecting part. The second hinge holes are formed on opposite side walls of the plugging groove, and the collecting part is correspondingly provided with hinge holes for matching with the second hinge holes.

10. The dishwasher according to claim 8, wherein: A plurality of guide rods are arranged below the sealing frame, and the inner wall of the housing is correspondingly provided with guide sleeves for the guide rods to slide up and down.

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