Dish washing machine

By introducing a linkage mechanism of sliders, hooks, and links into the upper and lower doors of the dishwasher, the problem of unstable locking of the upper and lower doors of a double-door dishwasher is solved, achieving stable closing and smooth opening.

CN223554805UActive Publication Date: 2025-11-18ZHEJIANG YOUJIA ELECTRIC APPLIANCES CO LTD
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Patent Information

Application Number
CN202423122320.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-18
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing double-door dishwashers have poor locking stability, especially the upper door, which makes it easy for the upper and lower doors to collide and interfere when opened.

Method used

The upper and lower doors are connected to the housing via a hinge mechanism. The door lock mechanism includes a slider, upper locking hook, rotating component, lower locking hook, and connecting rod. The upper and lower doors are stably locked and opened in sections through a linkage mechanism. The action of the door lock mechanism is controlled by springs and buttons.

Benefits of technology

It achieves stable closing and smooth opening of the upper and lower doors, avoiding collision and interference between the upper and lower doors during the unlocking process, thus improving the stability of the lock and the ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dish-washing machine, which comprises a case, a door body, a hinge mechanism and a door lock mechanism, the door body comprises an upper door body and a lower door body, the upper door body is provided with an upper limiting hook, and the lower door body is provided with a lower limiting hook; the door lock mechanism is arranged on the side portion of the case and comprises a sliding block, an upper lock hook, a rotating piece, a lower lock hook and a lower connecting rod, the sliding block is connected to the case in an up-down sliding mode, the upper lock hook is fixedly connected to the sliding block, and the upper lock hook is matched with the upper limiting hook; the rotating part is rotationally connected to the case, the lower lock hook is fixedly connected to the rotating part, and the lower lock hook is matched with the lower limiting hook; the upper end and the lower end of the lower connecting rod are rotationally connected to the sliding block, the rotating piece, the upper lock hook and the lower lock hook correspondingly to achieve linkage. The dish-washing machine adopts an upper-lower double-door structure, and the upper door body and the lower door body of the dish-washing machine can be locked by the door lock mechanism, so that the upper door body and the lower door body can be kept in a stable closed state; and the door lock mechanism can be driven to act by pressing the button, and the lower door body and the upper door body can be sequentially unlocked by the door lock mechanism.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a dish-washing machine, more particularly to a double-door dish-washing machine with a lock-opening mechanism. BACKGROUND

[0002] At present, dish-washing machines are mainly designed as single-door structures. The opening of such a structure usually has a certain height, and therefore a larger space needs to be reserved in front of the door body of the dish-washing machine to ensure that the door body can be smoothly opened. In addition, some dish-washing machines are designed with double doors. The two door bodies of such a design can be linked to each other and stacked one above the other after being opened, thereby effectively saving the space required for opening the doors.

[0003] After the door body of the current double-door dish-washing machine is closed, only the lower door body is locked and fixed, while the upper door body is limited by the hinge mechanism between the door body and the dish-washing machine cabinet. In the closed state of the lower door body, the upper door body cannot be rotated, and the upper door is locked and limited by the limiting structure inside the hinge assembly. This results in poor locking stability of the current double-door dish-washing machine, especially the locking state stability of the upper door of the dish-washing machine. SUMMARY

[0004] The utility model aims at overcoming the defects of the prior art and providing a dish-washing machine.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A dish-washing machine comprises a cabinet, a door body, a hinge mechanism and a door lock mechanism. The door body comprises an upper door body and a lower door body, which are arranged one above the other and are rotatably connected to the cabinet by the hinge mechanism for opening and closing the opening of the cabinet. The upper door body is provided with an upper limiting hook, and the lower door body is provided with a lower limiting hook.

[0007] The door lock mechanism is arranged on the side of the cabinet and comprises a sliding block, an upper locking hook, a rotating member, a lower locking hook and a lower connecting rod. The sliding block is slidably connected to the cabinet. The upper locking hook is fixedly connected to the sliding block and is adapted to the upper limiting hook. The rotating member is rotatably connected to the cabinet. The lower locking hook is fixedly connected to the rotating member and is adapted to the lower limiting hook. The upper and lower ends of the lower connecting rod are rotatably connected to the sliding block and the rotating member, respectively. The upper locking hook and the lower locking hook are linked to each other.

[0008] The utility model is further provided with the following arrangement: the hook portion of the upper locking hook is arranged upward, the hook portion of the lower locking hook is arranged downward, and the upper locking hook and the lower locking hook can be simultaneously moved upward or downward.

[0009] The utility model further sets up, the rotating piece surrounds the axle portion rotation, spring one is connected with the rotating piece, spring one is used for the elastic drive lower locking hook of rotating piece downward elastic deflection.

[0010] The utility model further sets up, the lower connecting rod rotation is connected between the axle portion and lower locking hook of rotating piece.

[0011] The utility model further sets up, the upper door body is in the closed state, and the upper limiting hook faces upwards and is matched with the upper locking hook and can be mutually locked;The upper locking hook has up-down activity stroke under the locking state, and the upper locking hook and the upper limiting hook maintain locking in the up-down activity stroke.

[0012] The utility model further sets up, the case side is equipped with sliding frame, and the sliding block is connected in the sliding frame.

[0013] The utility model further sets up, still include rotating shaft, the rotating shaft is located in the upper portion of case, the rotating shaft is connected in the case, the door lock mechanism still includes connecting block and upper connecting rod, the connecting block fixed connection is located in the end of rotating shaft, and the both ends of upper connecting rod are rotationally connected in connecting block and sliding block.

[0014] The utility model further sets up, still include door opening button, the door opening button is installed in the upper portion of case, the rotating shaft outer periphery fixed connection has linkage portion, the door opening button is located on the upside of linkage portion, is used for the down pressure and drives rotating shaft rotation;The door opening button down pressure can drive the connecting position of connecting block and upper connecting rod and deflect up and down.

[0015] The utility model further sets up, still include spring two, the door opening button rotation is connected in the upper side of case, spring two is elastically acted on the door opening button upwards, is used for elastically driving door opening button and resets upwards.

[0016] The utility model further sets up, the door lock mechanism is provided with two groups, is located in the both sides of case respectively, and is linked with the both ends of rotating shaft respectively.

[0017] Summarized above, the utility model has following beneficial effect:

[0018] In the scheme, the dish washing machine adopts a double-door structure, and the upper and lower door bodies of the dish washing machine can be locked by the door lock mechanism, so that the upper and lower door bodies can be kept in a stable closed state; and the door lock mechanism can be actuated by pressing the button to unlock the lower door body and the upper door body in sequence, so that the lower door body and the upper door body can be conveniently opened, and during the unlocking process, the lower door body can be opened first, and then the upper door body can be opened, the two door bodies have an opening sequence, and collision interference caused by the simultaneous opening of the upper and lower door bodies can be avoided, and the smoothness and stability of the opening of the two door bodies can be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A perspective view of a dish washing machine in the embodiment Figure 1 ;

[0020] Figure 2 A perspective view of a dish washing machine in the embodiment Figure 2 ;

[0021] Figure 3 A side view of the internal structure of a dish washing machine in the embodiment.

[0022] REFERENCE NUMERALS:

[0023] Cabinet 1;

[0024] Door body 2; lower door body 21; lower limiting hook 211; upper door body 22; upper limiting hook 221;

[0025] Hinge mechanism 3; lower hinge 31; upper hinge 32;

[0026] Door opening button 4; spring two 41;

[0027] Door lock mechanism 5; sliding block 51; sliding frame 511; upper locking hook 52; rotating part 53; shaft part 531; lower locking hook 54; lower connecting rod 55; connecting block 56; upper connecting rod 57;

[0028] Rotating shaft 6; linkage part 61. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] The embodiment discloses a dish washing machine, which refers to Figures 1-3As shown, including the cabinet 1, door body 2, hinge mechanism 3 and door lock mechanism 5; the dishwasher in this embodiment is a double door dishwasher, door body 2 includes the upper door body 22 and the lower door body 21, the upper door body 22 and the lower door body 21 are arranged in a top-down manner, and are rotatably connected to the cabinet 1 through the hinge mechanism 3, and the opening opening and closing action of the cabinet 1 is realized by the two door bodies.

[0031] The hinge mechanism 3 includes a lower hinge 31 and an upper hinge 32, wherein the lower door body 21 is rotatably connected to the opening of the cabinet 1 through the lower hinge 31, and the upper door body 22 is rotatably connected to the opening of the cabinet 1 through the upper hinge 32. The upper door body 22 and the lower door body 21 are rotatable downward to open the opening of the cabinet 1, and rotatable upward to close the opening of the cabinet 1.

[0032] The upper door body 22 is provided with an upper limiting hook 221, and the lower door body 21 is provided with a lower limiting hook 211. The door lock mechanism 5 is arranged on the side of the cabinet 1, and includes a sliding block 51, an upper locking hook 52, a rotating piece 53, a lower locking hook 54 and a lower connecting rod 55. The upper limiting hook 221 and the lower limiting hook 211 can be adapted to the door lock mechanism 5 respectively, realize linkage action, and can realize locking or opening of the upper door body 22 and the lower door body 21.

[0033] The sliding block 51 is slidably connected to the cabinet 1. A sliding frame 511 is mounted on the side of the cabinet 1, the sliding block 51 is slidably connected to the sliding frame 511, and the sliding block 51 can be adjusted up and down, and can be limited at the position of the up and down stroke to avoid falling off.

[0034] The upper locking hook 52 is fixedly connected to the sliding block 51, and the upper locking hook 52 moves up and down synchronously with the sliding block 51. The rotating piece 53 is rotatably connected to the cabinet 1, the lower locking hook 54 is fixedly connected to the rotating piece 53, and the lower locking hook 54 swings up and down synchronously with the rotating piece 53. The lower connecting rod 55 is mounted between the sliding block 51 and the rotating piece 53, and the sliding block 51 and the rotating piece 53 are linked through the lower connecting rod 55, so that the upper locking hook 52 and the lower locking hook 54 are linked with each other.

[0035] Specifically, the upper end of the lower connecting rod 55 is rotatably connected to the sliding block 51, and the lower end is rotatably connected to the rotating piece 53. Under the linkage action of the connecting rod 55, the upper locking hook 52 and the lower locking hook 54 can move upward or downward simultaneously. The upper locking hook 52 is adapted to the upper limiting hook 221, and the lower locking hook 54 is adapted to the lower limiting hook 211, which can lock and open the two door bodies respectively.

[0036] In this embodiment, the hook part of the lower locking hook 54 is arranged downward, the rotating piece 53 and the lower locking hook 54 move downward, and the lower locking hook 54 can lock the lower limiting hook 211, and move upward to open; the hook part of the upper locking hook 52 is arranged upward, the sliding block 51 and the upper locking hook 52 move upward, and the upper locking hook 52 can lock the upper limiting hook 221, and move downward to open.

[0037] The rotating member 53 rotates around the shaft portion 531, and the lower connecting rod 55 is rotationally connected between the shaft portion 531 of the rotating member 53 and the lower locking hook 54. The rotating member 53 is connected with a first spring, which can elastically drive the lower locking hook 54 of the rotating member 53 to elastically deflect downward. Specifically, the first spring is a torsion spring, which is installed on the shaft portion 531. Under the elastic action of the first spring, the lower locking hook 54 of the rotating member 53 can elastically move downward, i.e., in the locking direction.

[0038] A rotating shaft 6 is further installed on the upper portion of the cabinet 1, which is arranged along the width direction of the cabinet 1, and the two ends of the rotating shaft 6 can be linked with the door lock mechanism 5, thereby realizing the door opening action. In order to maintain the stability of the sealing of the two sides of the door body, the door lock mechanism 5 is provided with two groups, which are respectively located on the two sides of the cabinet 1 and are respectively linked with the two ends of the rotating shaft 6. Correspondingly, the lower limit hooks 211 and the upper limit hooks 221 are also provided with two groups, which are distributed on the two sides of the door body and can trigger the linkage door opening action with the door lock mechanism 5 on the two sides.

[0039] The rotating shaft 6 is connected to the cabinet 1 and is rotationally supported by a rotating frame. The door lock mechanism 5 further includes a connecting block 56 and an upper connecting rod 57. The connecting block 56 is fixedly connected to the end of the rotating shaft 6, and the two ends of the upper connecting rod 57 are respectively rotationally connected to the connecting block 56 and the sliding block 51. The rotation axis of the upper connecting rod 57 and the connecting block 56 is parallel to and offset from the axial direction of the rotating shaft 6. During the rotation of the rotating shaft 6, the connecting block 56 can swing upward, the upper connecting rod 57 can be driven upward, and the sliding block 51 can slide upward.

[0040] In addition, a door opening button 4 is installed on the upper portion of the cabinet 1 of the dishwasher, which is rotationally connected to the upper side of the cabinet 1, and a second spring 41 is installed between the lower portion of the door opening button 4 and the cabinet 1. The second spring 41 is also a torsion spring, which can elastically act on the door opening button 4 and elastically drive the door opening button 4 to reset upward.

[0041] The linkage portion 61 is fixedly connected to the outer periphery of the rotating shaft 6, and the door opening button 4 is arranged on the upper side of the linkage portion 61. When the door opening button 4 is pressed, it can drive the linkage portion 61 to rotate the rotating shaft 6, thereby causing the connecting block 56 to swing upward and drive the door lock mechanism 5 to trigger the opening.

[0042] Further, in the closed state of the upper door body 22, the upper limit hook 221 faces upward and can be locked with the upper locking hook 52. In the locked state of the upper locking hook 52, the upper locking hook 52 has an upward and downward movement stroke, and within the upward and downward movement stroke, the upper locking hook 52 maintains the locking with the upper limit hook 221.

[0043] In use, the upper door body 22 of the dishwasher in the embodiment is turned upward to be closed, the lower door body 21 is turned upward to be closed, and the two door bodies can close the opening of the box body 1; the upper limiting hook 221 of the upper door body 22 and the upper locking hook 52 are locked with each other, the upper door body 22 can be locked in the closed state, the lower limiting hook 211 of the lower door body 21 and the lower locking hook 54 are locked with each other, and the lower door body can also be locked in the closed state.

[0044] In the locked state, the rotating piece 53 has a downward elastic turning trend under the elastic action of the spring one, the lower locking hook 54 can maintain the downward buckling with the lower limiting hook 211, and the lower door body 22 is stably locked; and the rotating piece 53 is blocked by the lower limiting hook 211 and maintained at a certain height, at this time, the upper locking hook 52 and the upper limiting hook 221 are also in the locked state, and the upper door body 22 and the lower door body 21 can be jointly maintained in the locked state.

[0045] In the unlocking process, the door opening button 4 is pressed downward, the door opening button 4 presses the linkage part 61 of the rotating shaft 6, the linkage part 61 is deflected downward, as shown in the reference Figure 3 , the rotating shaft 6 generates counterclockwise rotation, the connecting block 56 follows the rotating shaft 6 to turn upward by a certain angle; at this time, the upper connecting rod 57 drives the sliding block 51 to slide upward, the upper locking hook 52 follows the sliding block 51 to move upward, the upper locking hook 52 and the upper limiting hook 221 are continuously maintained in the locked state; at the same time, the lower connecting rod 55 drives the rotating piece 53 and the lower locking hook 54 to swing upward against the elasticity of the spring one, the lower locking hook 54 and the lower limiting hook 211 are mutually unhooked, and the lower door body 21 can be opened first.

[0046] Then, the door opening button 4 is released, the spring two 41 drives the door opening button 4 to reset upward, the spring one drives the rotating piece 53 to swing downward, the lower connecting rod 55 drives the sliding block 51 to slide downward, and the upper locking hook 52 synchronously slides downward with the sliding block 51; at this time, the rotating piece 53 does not exist the blocking and limiting of the lower limiting hook 211 in the lower part, the swinging range of the rotating piece 53 is larger, the downward displacement degree of the sliding block 51 and the upper locking hook 52 is also larger, and further the position of the upper locking hook 52 can be separated from the locked position, the upper locking hook 52 can be unhooked with the upper limiting hook 221, and the upper door body 22 can also be opened. Therefore, the lower door body 21 and the upper door body 22 can be opened in sections in the door opening process, and the interference of the two door bodies in the opening process can be avoided.

[0047] The preferred embodiments of the dishwasher are described above, the protection scope of the dishwasher is not limited to the above-mentioned embodiments, and any technical scheme belonging to the idea of the dishwasher belongs to the protection scope of the dishwasher. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the dishwasher are also regarded as the protection scope of the dishwasher.

Claims

1. A dishwasher, characterized in that The utility model provides a cabinet (1), door body (2), hinge mechanism (3) and door lock mechanism (5), door body (2) includes upper door body (22) and lower door body (21), upper door body (22) and lower door body (21) are arranged in up and down, and are rotatably connected in cabinet (1) through hinge mechanism (3), are used for opening and closing the opening of cabinet (1), upper door body (22) is installed with upper limit hook (221), lower door body (21) is installed with lower limit hook (211), Door lock mechanism (5) is located in the side of cabinet (1), including sliding block (51), upper lock hook (52), rotating part (53), lower lock hook (54) and lower connecting rod (55), sliding block (51) is slidably connected in cabinet (1), upper lock hook (52) is fixedly connected in sliding block (51), and upper lock hook (52) is matched with upper limit hook (221), rotating part (53) is rotatably connected in cabinet (1), lower lock hook (54) is fixedly connected in rotating part (53), and lower lock hook (54) is matched with lower limit hook (211), and the upper and lower ends of lower connecting rod (55) are rotatably connected with sliding block (51) and rotating part (53), and upper lock hook (52) and lower lock hook (54) realize linkage.

2. The dishwasher according to claim 1, characterized in that The hook portion of the upper lock hook (52) is arranged upward, the hook portion of the lower lock hook (54) is arranged downward, and the upper lock hook (52) and the lower lock hook (54) can move upward or downward simultaneously.

3. The warewashing machine of claim 2, wherein, The rotating part (53) rotates around the shaft portion (531), and the rotating part (53) is connected with a spring, which is used to elastically drive the lower lock hook (54) of the rotating part (53) to elastically deflect downward.

4. The warewash machine of claim 3 wherein, The lower connecting rod (55) is rotatably connected between the shaft portion (531) of the rotating part (53) and the lower lock hook (54).

5. The warewashing machine of claim 3, wherein, In the closed state of the upper door body (22), the upper limit hook (221) faces upward and is matched with the upper lock hook (52) to be locked with each other; in the locked state of the upper lock hook (52), the upper lock hook (52) has an up-down movement stroke in the locked state, and the upper lock hook (52) and the upper limit hook (221) are locked in the up-down movement stroke.

6. The warewashing machine of claim 3, wherein, The sliding frame (511) is installed on the side of the cabinet (1), and the sliding block (51) is slidably connected to the sliding frame (511).

7. The dishwasher according to any one of claims 1 to 6, characterized in that The utility model also provides a rotating shaft (6), which is located in the upper part of the cabinet (1), and is connected to the cabinet (1). The door lock mechanism (5) further comprises a connecting block (56) and an upper connecting rod (57). The connecting block (56) is fixedly connected to the end of the rotating shaft (6), and the two ends of the upper connecting rod (57) are rotatably connected to the connecting block (56) and the sliding block (51), respectively. The rotation axis of the upper connecting rod (57) and the connecting block (56) is parallel to and offset from the axis of the rotating shaft (6). 8.The dish washer of claim 7, wherein It also includes the open door button (4), the open door button (4) is installed on the upper part of the cabinet (1), the rotating shaft (6) is fixedly connected with the linkage part (61), the open door button (4) is arranged on the upper side of the linkage part (61), which is used for pressing down to drive the rotating shaft (6) to rotate; the open door button (4) can drive the connecting block (56) and the connecting position of the upper connecting rod (57) to deflect up and down. 9.The dish washer of claim 8, wherein It also includes spring two (41), the open door button (4) is rotatably connected to the upper side of the cabinet (1), the spring two (41) is elastically applied to the open door button (4) upward, which is used for elastically driving the open door button (4) to reset upward. 10.The dish washer of claim 7, wherein The door lock mechanism (5) is provided with two groups, which are respectively located on both sides of the cabinet (1), and are respectively linked with both ends of the rotating shaft (6).