Dish washing machine

Abstract

The dish washing machine comprises a machine box, 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.

Description

Technical Field

[0001] The present invention relates to a dishwasher, and more particularly, to a double-door dishwasher with a locking mechanism. Background Art

[0002] At present, dishwashers are mainly designed with a single-door structure. The opening of this structure usually has a certain height. Therefore, a relatively large space needs to be reserved in front of the dishwasher door to ensure that the door can be opened smoothly. In addition, some dishwashers adopt a double-door design. The two doors of this design can be linked with each other and stacked up and down after being opened, thus effectively saving the space required for opening the door.

[0003] After the doors of the current double-door dishwasher are closed, only the lower door is locked and fixed, while the upper door is limited by the limit of the hinge mechanism between the door and the dishwasher chassis. When the lower door is in the closed state, the upper door cannot rotate, and the upper door is locked and limited by the limit structure inside the hinge assembly. This results in poor locking stability of the current double-door dishwasher, especially the locking state stability of the upper door of the dishwasher. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a dishwasher.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A dishwasher includes a chassis, a door, a hinge mechanism and a door lock mechanism. The door includes an upper door and a lower door. The upper door and the lower door are arranged vertically and are rotatably connected to the chassis through the hinge mechanism for opening and closing the opening of the chassis. An upper limit hook is installed on the upper door, and a lower limit hook is installed on the lower door.

[0007] The door lock mechanism is arranged on the side of the chassis and includes a slider, an upper lock hook, a rotating member, a lower lock hook and a lower connecting rod. The slider is slidably connected to the chassis up and down. The upper lock hook is fixedly connected to the slider, and the upper lock hook is adapted to the upper limit hook. The rotating member is rotatably connected to the chassis. The lower lock hook is fixedly connected to the rotating member, and the lower lock hook is adapted to the lower limit hook. The upper and lower ends of the lower connecting rod are respectively rotatably connected to the slider and the rotating member, and the upper lock hook and the lower lock hook are linked.

[0008] The present invention is further arranged such that the hook portion of the upper lock hook faces upward, the hook portion of the lower lock hook faces downward, the hook portion of the upper lock hook faces upward, and the upper lock hook and the lower lock hook can move upward or downward simultaneously.

[0009] The present invention is further configured such that the rotating member rotates around the shaft portion, and a first spring is connected to the rotating member. The first spring is used to elastically drive the lower locking hook of the rotating member to deflect downward elastically.

[0010] The present invention is further configured such that the lower connecting rod is rotatably connected between the shaft portion of the rotating member and the lower locking hook.

[0011] The present invention is further configured such that when the upper door body is in the closed state, the upper limiting hook faces upward and is adapted to be locked with the upper locking hook; when the upper locking hook is in the locked state, the upper locking hook has an up-and-down movement stroke, and within the up-and-down movement stroke, the upper locking hook and the upper limiting hook maintain the locked state.

[0012] The present invention is further configured such that a sliding rack is installed on the side of the chassis, and the slider is slidably connected to the sliding rack; the first spring is a torsion spring.

[0013] The present invention is further configured to further include a rotating shaft, the rotating shaft is located at the upper part of the chassis, the rotating shaft is connected to the chassis, the door locking mechanism further includes a connecting block and an upper connecting rod, the connecting block is fixedly connected to the end of the rotating shaft, and the two ends of the upper connecting rod are respectively rotatably connected to the connecting block and the slider; the rotation axis of the upper connecting rod and the connecting block is parallel and offset from the axial direction of the rotating shaft.

[0014] The present invention is further configured to further include an opening button, the opening button is installed on the upper part of the chassis, a linkage part is fixedly connected to the outer periphery of the rotating shaft, the opening button is arranged above the linkage part, and is used to press down to drive the rotating shaft to rotate; when the opening button is pressed down, it can drive the connection position between the connecting block and the upper connecting rod to deflect up and down.

[0015] The present invention is further configured to further include a second spring, the opening button is rotatably connected to the upper side of the chassis, and the second spring acts on the opening button upward elastically, and is used to elastically drive the opening button to reset upward.

[0016] The present invention is further configured such that two sets of the door locking mechanisms are provided, which are respectively located on both sides of the chassis and are respectively linked with both ends of the rotating shaft.

[0017] In summary, the present invention has the following beneficial effects:

[0018] In this solution, the dishwasher adopts an upper and lower double-door structure, and both the upper and lower door bodies of the dishwasher can be locked by the door lock mechanism, and the upper and lower door bodies can be kept in a stable closed state. Moreover, by pressing a button, the door lock mechanism can be driven to act. The door lock mechanism can unlock the lower door body and the upper door body successively, which can facilitate the opening of the lower door body and the upper door body. During the unlocking process, the lower door body can be opened first, and then the upper door body can be opened. The upper and lower door bodies have a sequence of opening, which can avoid the collision interference caused by the simultaneous opening of the upper and lower door bodies and maintain the smoothness and stability of the opening of the upper and lower door bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of a dishwasher in this embodiment Figure 1 ;

[0020] Figure 2 is a three-dimensional view of a dishwasher in this embodiment Figure 2 ;

[0021] Figure 3 is a side view schematic diagram of the internal structure of a dishwasher in this embodiment.

[0022] Reference Signs:

[0023] Chassis 1;

[0024] Door body 2; Lower door body 21; Lower limit hook 211; Upper door body 22; Upper limit 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; Slide 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 OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] This embodiment discloses a dishwasher. Refer to Figures 1 - 3As shown in the figure, it includes a chassis 1, a door body 2, a hinge mechanism 3 and a door lock mechanism 5; the dishwasher in this embodiment is a double-door dishwasher, and the door body 2 includes an upper door body 22 and a lower door body 21. The upper door body 22 and the lower door body 21 are arranged vertically and are rotatably connected to the chassis 1 through the hinge mechanism 3. The opening and closing actions of the chassis 1 are realized by the two door bodies together.

[0031] The hinge mechanism 3 includes a lower hinge 31 and an upper hinge 32. Among them, the lower door body 21 is rotatably connected to the opening of the chassis 1 through the lower hinge 31, and the upper door body 22 is rotatably connected to the opening of the chassis 1 through the upper hinge 32. The upper door body 22 and the lower door body 21 rotate downward together to open the opening of the chassis 1, and rotate upward to close the opening of the chassis 1.

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

[0033] The slider 51 is slidably connected to the chassis 1 up and down. A sliding frame 511 is installed on the side of the chassis 1, and the slider 51 is slidably connected to the sliding frame 511. The slider 51 can be slid up and down and adjusted, and can be limited at the positions of the up and down strokes to prevent the slider 51 from falling off.

[0034] The upper lock hook 52 is fixedly connected to the slider 51, and the upper lock hook 52 moves up and down synchronously with the slider 51. The rotating member 53 is rotatably connected to the chassis 1, the lower lock hook 54 is fixedly connected to the rotating member 53, and the lower lock hook 54 swings up and down synchronously with the rotating member 53. A lower connecting rod 55 is installed between the slider 51 and the rotating member 53. Through the lower connecting rod 55, the slider 51 and the rotating member 53 can be linked, and further the upper lock hook 52 and the lower lock hook 54 can be linked with each other.

[0035] Specifically, the upper end of the lower connecting rod 55 is rotatably connected to the slider 51, and the lower end is rotatably connected to the rotating member 53. Under the linkage action of the connecting rod 55, the upper lock hook 52 and the lower lock hook 54 can move up or down simultaneously. The upper lock hook 52 is adapted to the upper limit hook 221, and the lower lock hook 54 is adapted to the lower limit hook 211, and can respectively lock and open the two door bodies.

[0036] In this embodiment, the hook part of the lower lock hook 54 is arranged downward. When the rotating member 53 and the lower lock hook 54 move downward, the lower lock hook 54 can lock the lower limit hook 211 and can open it when moving upward; the hook part of the upper lock hook 52 is arranged upward. When the slider 51 and the upper lock hook 52 move upward, the upper lock hook 52 can lock the upper limit hook 221 and can open it when moving downward.

[0037] The rotating member 53 rotates around the shaft portion 531, and the lower connecting rod 55 is rotatably 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, and the first spring can elastically drive the lower locking hook 54 of the rotating member 53 to deflect downward elastically. Specifically, the first spring is a torsion spring and 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 move downward, that is, elastically move in the locking direction.

[0038] A rotating shaft 6 is also installed on the upper part of the chassis 1. The rotating shaft 6 is arranged along the width direction of the chassis 1, and both ends of the rotating shaft 6 can be linked with the door locking mechanism 5, so as to realize the door opening action. In order to maintain the stability of the sealing on both sides of the door body, two groups of door locking mechanisms 5 are provided, which are respectively located on both sides of the chassis 1 and are respectively linked with both ends of the rotating shaft 6. Correspondingly, two groups of lower limit hooks 211 and upper limit hooks 221 are also provided and are distributed on both sides of the door body, and can trigger and link the door opening action with the door locking mechanisms 5 on both sides.

[0039] The rotating shaft 6 is connected to the chassis 1, and the rotating shaft 6 is rotationally supported by a rotating frame. The door locking 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 both ends of the upper connecting rod 57 are respectively rotatably connected to the connecting block 56 and the slider 51. The rotation axis of the upper connecting rod 57 and the connecting block 56 is parallel 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, which can drive the upper connecting rod 57 upward, and then drive the slider 51 to slide upward.

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

[0041] A linkage part 61 is fixedly connected to the outer periphery of the rotating shaft 6, and the opening button 4 is arranged above the linkage part 61. When the opening button 4 is pressed downward, it can drive the linkage part 61, so that the rotating shaft 6 rotates, and then the connecting block 56 can swing upward, driving the door locking mechanism 5 to trigger and open.

[0042] Further, when the upper door body 22 is in the closed state, the upper limit hook 221 faces upward and is adapted to the upper locking hook 52 to be mutually locked. When the upper locking hook 52 is in the locked state, the upper locking hook 52 has an up and down movement stroke. Within the up and down movement stroke, the upper locking hook 52 and the upper limit hook 221 maintain the locking.

[0043] When the dishwasher in this embodiment is in use, the upper door body 22 of the dishwasher is rotated upward to close, and the lower door body 21 is rotated upward to close. The two door bodies can close the opening of the cabinet 1; the upper limit hook 221 of the upper door body 22 and the upper lock hook 52 are locked with each other, and the upper door body 22 can be locked in the closed state. The lower limit hook 211 of the lower door body 21 and the lower lock 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, under the elastic action of the first spring, the lower lock hook 54 has a tendency to rotate downward elastically, and can maintain the upper and lower buckling of the lower lock hook 54 and the lower limit hook 211, and the lower door body 22 is stably locked; moreover, the rotating member 53 is blocked by the lower limit hook 211 and maintained at a certain height. At this time, the upper lock hook 52 and the upper limit 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] During 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, and the linkage part 61 deflects downward. Refer to Figure 3 As shown, the rotating shaft 6 rotates counterclockwise, and the connecting block 56 follows the rotating shaft 6 and rotates upward by a certain angle; at this time, the upper connecting rod 57 drives the slider 51 to slide upward, and the upper lock hook 52 follows the slider 51 and moves upward. The upper lock hook 52 and the upper limit hook 221 continue to be maintained in the locked state; at the same time, overcoming the elasticity of the first spring, the lower connecting rod 55 drives the rotating member 53 and the lower lock hook 54 to swing upward, and the lower lock hook 54 and the lower limit hook 211 are disengaged from each other, and the lower door body 21 can be opened first.

[0046] Then, the door opening button 4 is released, the second spring 41 drives the door opening button 4 to reset upward, and the first spring drives the rotating member 53 to swing downward. The lower connecting rod 55 drives the slider 51 to slide downward, and the upper lock hook 52 slides downward synchronously with the slider 51; moreover, at this time, there is no blocking and limiting of the lower limit hook 211 at the lower part of the rotating member 53, and the rotating member 53 swings downward by a larger amplitude, and the downward displacement degree of the slider 51 and the upper lock hook 52 is also larger, so that the position of the upper lock hook 52 can be disengaged from the locked position, and the upper lock hook 52 can be disengaged from the upper limit hook 221, and the upper door body 22 can also be opened. Therefore, during the door opening process, the lower door body 21 and the upper door body 22 can be opened in segments, and interference between the two door bodies during the opening process can be avoided.

[0047] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dishwasher, characterized in that: The invention comprises a case (1), a door body (2), a hinge mechanism (3) and a door lock mechanism (5); the door body (2) comprises an upper door body (22) and a lower door body (21); the upper door body (22) and the lower door body (21) are arranged vertically and are rotatably connected to the case (1) through the hinge mechanism (3) and are used to open and close the opening of the case (1); the upper door body (22) is provided with an upper limit hook (221), and the lower door body (21) is provided with a lower limit hook (211); The door lock mechanism (5) is arranged on the side of the chassis (1), and comprises a slider (51), an upper locking hook (52), a rotating member (53), a lower locking hook (54) and a lower connecting rod (55); the slider (51) is connected to the chassis (1) in an upward and downward sliding manner; the upper locking hook (52) is fixedly connected to the slider (51); the upper locking hook (52) is matched with the upper limit hook (221); the rotating member (53) is connected to the chassis (1) in an upward and downward manner; the lower locking hook (54) is fixedly connected to the rotating member (53); the lower locking hook (54) is matched with the lower limit hook (211); the upper and lower ends of the lower connecting rod (55) are respectively connected to the slider (51) and the rotating member (53); the upper locking hook (52) and the lower locking hook (54) are linked to each other.

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

3. The dishwasher according to claim 2, characterized in that The rotating member (53) rotates around the shaft (531), and the rotating member (53) is connected to a spring 1, wherein the spring 1 is used to elastically drive the lower locking hook (54) of the rotating member (53) to elastically deflect downward.

4. The dishwasher according to claim 3, characterized in that: The lower connecting rod (55) is rotatably connected between the shaft portion (531) of the rotating member (53) and the lower locking hook (54).

5. The dishwasher according to claim 3, characterized in that: When the upper door body (22) is in a closed state, the upper limit hook (221) faces upward and is adapted to lock with the upper locking hook (52); when the upper locking hook (52) is in a locked state, the upper locking hook (52) has an upward and downward movable stroke, and within the upward and downward movable stroke, the upper locking hook (52) and the upper limit hook (221) are kept locked.

6. The dishwasher according to claim 3, characterized in that: A sliding frame (511) is installed on the side of the chassis (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 door lock mechanism (5) further comprises a rotating shaft (6), wherein the rotating shaft (6) is located at the upper part of the chassis (1), and the rotating shaft (6) is connected to the chassis (1). The door lock mechanism (5) further comprises a connecting block (56) and an upper connecting rod (57), wherein 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 rotatably connected to the connecting block (56) and the slider (51); the rotating axes of the upper connecting rod (57) and the connecting block (56) are parallel to and offset from the axial direction of the rotating shaft (6).

8. The dishwasher according to claim 7, characterized in that It also includes a door opening button (4), which is installed on the upper part of the chassis (1). The outer periphery of the rotating shaft (6) is fixedly connected with a linkage part (61). The door opening button (4) is arranged on the upper side of the linkage part (61) and is used to push down to drive the rotating shaft (6) to rotate; the door opening button (4) can drive the connection position of the connecting block (56) and the upper connecting rod (57) to deflect up and down when it is pressed down.

9. The dishwasher according to claim 8, characterized in that It also includes a second spring (41), the door opening button (4) is rotatably connected to the upper side of the chassis (1), and the second spring (41) elastically acts on the door opening button (4) upwards, and is used to elastically drive the door opening button (4) to reset upwards.

10. The dishwasher according to claim 7, characterized in that The door lock mechanism (5) is provided in two groups, which are respectively located on two sides of the chassis (1) and are respectively linked to the two ends of the rotating shaft (6).

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