Automatic door opening and closing structure and dish washing machine
By designing an automatic door opening and closing structure on the dishwasher and using the driving motor and gear system to drive the swing rod and pushing rod, the automatic switch of the dishwasher door is realized, solving the problem of poor drying of traditional dishwasher and improving the drying level of tableware.
Patent Information
- Application Number
- CN202421369853.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Traditional dishwashers need to be man-made to open the door after washing dishes, resulting in poor dryness of the tableware.
An automatic door opening and closing structure is designed, including a driving motor, a driving gear, a driven gear, a swing rod and a pushing rod. The automatic door switching is realized by driving the swing rod to drive the pushing rod by driving the pushing rod.
The automatic opening and closing of the dishwasher door body is realized. The thrust or tension force is greater when opening and closing the door, and the thrust or tension force is less during the way, which meets the friction and actual needs of opening and closing the door and improves the dryness of the tableware.
Smart Images
Figure CN222640433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dishwashers, in particular to an automatic door opening and closing structure and a dishwasher. Background Art
[0002] Traditional dishwashers need to close the door before washing dishes, and after washing dishes, they need to be manually opened. As a result, after washing dishes, the moisture on the dishes cannot be released in time, the water vapor inside cannot be released automatically, and the degree of drying of the dishes is poor. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an automatic door opening and closing structure and a dishwasher.
[0004] The technical solution adopted by the utility model to solve the technical problem is: an automatic door opening and closing structure, used in a dishwasher, comprises a driving motor, a driving gear, a driven gear, a swing rod and a push-pull rod, the driving gear is fixedly connected to the driving motor, the driving gear is meshed with the driven gear to drive the driven gear to rotate, and the swing rod is respectively rotatably connected to the driven gear and the push-pull rod;
[0005] The automatic door opening and closing structure further comprises a mounting shell, wherein the driving motor, the driving gear, the driven gear, the swing rod and the push-pull rod are all arranged inside the mounting shell, and the free end of the push-pull rod away from the swing rod extends out of the mounting shell;
[0006] The automatic door opening and closing structure includes an open door state and a closed door state:
[0007] In the door-opening state, the axial direction of the swing rod is parallel to the axial direction of the push-pull rod and the total length of the axial projection of the swing rod and the driven gear along the push-pull rod is the longest;
[0008] In the door closing state, the axial direction of the swing rod is parallel to the axial direction of the push-pull rod and the total length of the axial projection of the swing rod and the driven gear along the push-pull rod is the shortest.
[0009] Preferably, in the automatic door opening and closing structure of the utility model, the driven gear comprises a main body, a positioning shaft fixedly connected to the mounting shell, and driven gear teeth arranged on the outer periphery of the main body, and the main body is rotatably sleeved on the positioning shaft;
[0010] The main body is provided with a first mounting hole for connecting the swing rod, and the first mounting hole is arranged close to the driven gear teeth.
[0011] Preferably, in the automatic opening and closing door structure described in the utility model, the push-pull rod includes a rod body and a second mounting hole for rotationally connecting the swing rod, and the second mounting hole is arranged on the rod body.
[0012] Preferably, in the automatic opening and closing door structure described in the utility model, the mounting shell is provided with a moving channel along a first direction for allowing the swing rod to telescopically move along the first direction.
[0013] Preferably, in the automatic door opening and closing structure of the utility model, the push-pull rod further comprises a door opening card point and a door closing card point, and the door opening card point and the door closing card point are arranged on the rod body at intervals along the first direction;
[0014] The automatic door opening and closing structure also includes a first micro switch and a second micro switch. The first micro switch is installed in the installation shell and is connected when it abuts against the door opening card point; the second micro switch is installed in the installation shell and is connected when it abuts against the door closing card point.
[0015] Preferably, in the automatic door opening and closing structure described in the utility model, the door opening card point and the door closing card point are respectively arranged on opposite sides or the same side of the rod body, and the first micro switch and the second micro switch are respectively arranged on opposite sides or the same side of the moving channel.
[0016] Preferably, in the automatic door opening and closing structure described in the utility model, the door opening card point and the door closing card point are arc-shaped grooves, ladder-shaped grooves or V-shaped grooves respectively.
[0017] Preferably, in the automatic opening and closing door structure described in the utility model, the number of teeth of the driving gear is smaller than the number of teeth of the driven gear.
[0018] Preferably, in the automatic opening and closing door structure described in the utility model, the reduction ratio between the driving gear and the driven gear is greater than or equal to 2:1.
[0019] The utility model also constructs a dishwasher, comprising a dishwasher body with an opening, a door body and any one of the above-mentioned automatic door opening and closing structures, wherein the door body is arranged corresponding to the opening and is rotatably connected to the dishwasher body, and the automatic door opening and closing structure is installed on the dishwasher body;
[0020] The free end of the push-pull rod away from the swing rod extends out of the dishwasher body and is connected to the door body.
[0021] By implementing the utility model, the following beneficial effects are achieved:
[0022] The automatic door opening and closing structure of the utility model drives the swing rod to act on the push-pull rod with non-constant force through the driving motor. The pushing force or pulling force is larger when opening and closing the door, and the pushing force or pulling force is smaller during the process from opening to closing the door, thereby meeting the friction force and actual needs of opening and closing the door and realizing automatic opening and closing of the door.
[0023] The utility model dishwasher is equipped with an automatic door opening and closing structure, which can realize the automatic opening and closing of the dishwasher door body, and the pushing force or pulling force is larger when opening and closing the door, and the pushing force or pulling force is smaller during the process of opening and closing the door, so as to meet the friction force and actual needs of opening and closing the door and realize automatic opening and closing of the door. It can automatically release the water vapor inside the dishwasher, dissipate the moisture in time, and improve the dryness of the dishes. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:
[0025] Figure 1 This is a schematic diagram of the structure of an automatic door opening and closing structure of an embodiment of the utility model in an open door state;
[0026] Figure 2 This utility model Figure 1 Structural schematic diagram of the automatic opening and closing door structure in the closed state. DETAILED DESCRIPTION
[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.
[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0029] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model 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 cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a chemical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0031] See also Figure 1 and Figure 2 One embodiment of the utility model discloses an automatic door opening and closing structure for use in a dishwasher. It can be understood that in some other embodiments, the automatic door opening and closing structure of the utility model can also be used in other devices that need automatic door opening and closing, such as dishwashers. The automatic door opening and closing structure includes a driving motor 1, a driving gear 2, a driven gear 3, a swing rod 4, a push-pull rod 5 and a mounting shell 6, wherein: Figure 1 The mounting shell 6 is not shown. Figure 2 Only a portion of the mounting shell 6 is shown, and the swing rod 4 overlaps with the driven gear 3. The driving gear 2 is fixedly connected to the driving motor 1, and the driving gear 2 is meshed with the driven gear 3 to drive the driven gear 3 to rotate, and the swing rod 4 is rotatably connected to the driven gear 3 and the push-pull rod 5 respectively. The driving motor 1, the driving gear 2, the driven gear 3, the swing rod 4 and the push-pull rod 5 are all arranged inside the mounting shell 6, and the free end 55 of the push-pull rod 5 away from the swing rod 4 extends out of the mounting shell 6. Preferably, the number of teeth of the driving gear 2 is less than the number of teeth of the driven gear 3 to achieve a deceleration function. In this embodiment, the reduction ratio of the driving gear 2 to the driven gear 3 is greater than or equal to 2:1, for example 2:1, 3:1, 4:1, etc.
[0032] The automatic door opening and closing structure includes the door opening state and the door closing state: see Figure 1 In the door open state, the axial direction of the swing rod 4 is parallel to the axial direction of the push-pull rod 5 and the total length of the axial projection of the swing rod 4 and the driven gear 3 along the push-pull rod 5 is the longest. Figure 2, in the closed state, the axial direction of the swing rod 4 is parallel to the axial direction of the push-pull rod 5, and the total length of the axial projection of the swing rod 4 and the driven gear 3 along the push-pull rod 5 is the shortest. Generally, there is a transition state between the open state and the closed state. The first case of the transition state is the process from the open state to the closed state. At this time, the axial direction of the swing rod 4 is at an angle to the axial direction of the push-pull rod 5, and the angle changes in a trend of small → large → small, and the total length of the axial projection of the swing rod 4 and the driven gear 3 along the push-pull rod 5 is long → short. The second case of the transition state is the process from the closed state to the open state. At this time, the axial direction of the swing rod 4 is at an angle to the axial direction of the push-pull rod 5, and the angle changes in a trend of small → large → small, and the total length of the axial projection of the swing rod 4 and the driven gear 3 along the push-pull rod 5 is short → long.
[0033] Furthermore, in some embodiments, the driven gear 3 includes a main body 31, a positioning shaft 33 fixedly connected to the mounting shell 6, and a driven gear 34 arranged on the outer periphery of the main body 31, and the main body 31 is rotatably sleeved on the positioning shaft 33. A first mounting hole 32 for connecting the swing rod 4 is provided on the main body 31, and the first mounting hole 32 is arranged close to the driven gear 34, that is, the swing rod 4 is connected to the edge position of the driven gear 3, so as to ensure that the swing rod 4 can be driven to generate a larger displacement when the driven gear 3 rotates.
[0034] Furthermore, the mounting shell 6 is provided with a moving channel along the first direction to allow the swing rod 4 to telescopically move along the first direction, wherein the moving channel is covered by the push-pull rod 5, which is not shown in the figure.
[0035] Further, in some embodiments, the push-pull rod 5 includes a rod body 51, a second mounting hole 52 for the swing rod 4 to be rotatably connected, a door opening point 53 and a door closing point 54, the second mounting hole 52 is provided on the rod body 51, and the door opening point 53 and the door closing point 54 are provided on the rod body 51 at intervals along the first direction. The distance between the door opening point 53 and the door closing point 54 is determined according to the actual required door opening amplitude and the installation position, and the utility model is not limited here. Preferably, in this embodiment, the first direction is the axial direction of the rod body 51, and the door opening point 53 and the door closing point 54 are respectively provided on opposite sides of the rod body 51. The door opening point 53 and the door closing point 54 are respectively arc grooves, ladder grooves or V-shaped grooves to prevent jamming. It can be understood that in some other embodiments, the door opening point 53 and the door closing point 54 can be provided on the same side of the rod body 51.
[0036] The automatic door opening and closing structure further includes a first micro switch 7 and a second micro switch 8. The first micro switch 7 is installed in the mounting shell 6 and is connected when it abuts against the door opening card point 53. The second micro switch 8 is installed in the mounting shell 6 and is connected when it abuts against the door closing card point 54. Preferably, in some embodiments, in order to better install the first micro switch 7 and the second micro switch 8, the automatic door opening and closing structure further includes a position sensing circuit board 9, and the first micro switch 7 and the second micro switch 8 are connected to the position sensing circuit board 9. In this embodiment, the first micro switch 7 and the second micro switch 8 are respectively arranged on opposite sides of the moving channel, the position sensing circuit board 9 spans the moving channel, and the push-pull rod 5 moves above or below the position sensing circuit board 9 and is always located between the first micro switch 7 and the second micro switch 8. It can be understood that in some other embodiments, the first micro switch 7 and the second micro switch 8 can be arranged on the same side of the moving channel.
[0037] Furthermore, in order to realize the rotatable installation of the swing arm 4, connecting holes are respectively provided at the opposite ends of the swing arm 4, and the connecting holes are rotatably connected to the first mounting hole 32 and the second mounting hole 52 by existing connecting parts such as fasteners and hinges that can realize movable connection.
[0038] When the automatic door opening and closing structure of the utility model is used, the driving motor 1 is started to drive the driving gear 2 to rotate, the driving gear 2 drives the driven gear 3 to rotate and achieve deceleration, the driven gear 3 drives the swing rod 4 to move, and the swing rod 4 drives the push-pull rod 5 to move, finally achieving the purpose of opening or closing the door.
[0039] Since the pulling force and pushing force required for opening and closing the door are the largest, the pushing force or pulling force given by the swing rod 4 to the push-pull rod 5 is relatively large in the door opening state and the door closing state. In the process of the swing rod 4 driving the push-pull rod 5 to move, the pushing force or pulling force given by the swing rod 4 to the push-pull rod 5 is a variable force, which can achieve the effect of slowing down the speed in the process of opening or closing the door.
[0040] The second embodiment of the utility model discloses a dishwasher, comprising a dishwasher body with an opening, a door body and any one of the above automatic door opening and closing structures, the door body is arranged corresponding to the opening and is rotatably connected to the dishwasher body, and the automatic door opening and closing structure is installed on the dishwasher body. The free end 55 of the push-pull rod 5 away from the swing rod 4 extends out of the dishwasher body and is connected to the door body. The entire structure of the automatic door opening and closing structure is the same as that of the above embodiment, and will not be repeated here.
[0041] By implementing the utility model, the following beneficial effects are achieved:
[0042] The automatic door opening and closing structure of the utility model drives the swing rod 4 to act on the push-pull rod 5 with non-constant force through the driving motor 1. The pushing or pulling force is larger when opening and closing the door, and the pushing or pulling force is smaller during the process from opening to closing the door, thereby meeting the friction force and actual needs of opening and closing the door and realizing automatic opening and closing of the door.
[0043] The utility model dishwasher is equipped with an automatic door opening and closing structure, which can realize the automatic opening and closing of the dishwasher door body, and the pushing force or pulling force is larger when opening and closing the door, and the pushing force or pulling force is smaller during the process of opening and closing the door, so as to meet the friction force and actual needs of opening and closing the door and realize automatic opening and closing of the door. It can automatically release the water vapor inside the dishwasher, dissipate the moisture in time, and improve the dryness of the dishes.
[0044] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above embodiments or technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model, that is, the embodiments described in "some embodiments" can be freely combined with any of the above and below embodiments; therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.
Claims
1. An automatic door opening and closing structure, used in a dishwasher, characterized in that: The invention comprises a driving motor (1), a driving gear (2), a driven gear (3), a swing rod (4) and a push-pull rod (5), wherein the driving gear (2) is fixedly connected to the driving motor (1), the driving gear (2) is meshed with the driven gear (3) to drive the driven gear (3) to rotate, and the swing rod (4) is respectively connected to the driven gear (3) and the push-pull rod (5) in rotation; The automatic door opening and closing structure further comprises a mounting shell (6), wherein the driving motor (1), the driving gear (2), the driven gear (3), the swing rod (4) and the push-pull rod (5) are all arranged inside the mounting shell (6), and a free end (55) of the push-pull rod (5) away from the swing rod (4) extends out of the mounting shell (6); The automatic door opening and closing structure includes an open door state and a closed door state: In the door-opening state, the axial direction of the swing rod (4) is parallel to the axial direction of the push-pull rod (5), and the total length of the axial projection of the swing rod (4) and the driven gear (3) along the push-pull rod (5) is the longest; In the door-closing state, the axial direction of the swing rod (4) is parallel to the axial direction of the push-pull rod (5), and the total length of the axial projection of the swing rod (4) and the driven gear (3) along the push-pull rod (5) is the shortest.
2. The automatic door opening and closing structure according to claim 1, characterized in that: The driven gear (3) comprises a main body (31), a positioning shaft (33) fixedly connected to the mounting shell (6), and driven gear teeth (34) arranged on the outer periphery of the main body (31); the main body (31) is rotatably sleeved on the positioning shaft (33); The main body (31) is provided with a first mounting hole (32) for connecting the swing rod (4), and the first mounting hole (32) is arranged close to the driven gear teeth (34).
3. The automatic door opening and closing structure according to claim 1, characterized in that: The push-pull rod (5) comprises a rod body (51) and a second mounting hole (52) for rotationally connecting the swing rod (4); the second mounting hole (52) is arranged on the rod body (51).
4. The automatic door opening and closing structure according to claim 3, characterized in that: The mounting shell (6) is provided with a moving channel along a first direction to allow the swing rod (4) to telescopically move along the first direction.
5. The automatic door opening and closing structure according to claim 4, characterized in that: The push-pull rod (5) further comprises a door opening card point (53) and a door closing card point (54), wherein the door opening card point (53) and the door closing card point (54) are arranged on the rod body (51) at intervals along the first direction; The automatic door opening and closing structure further comprises a first micro switch (7) and a second micro switch (8); the first micro switch (7) is installed in the mounting shell (6) and is connected when it abuts against the door opening card point (53); and the second micro switch (8) is installed in the mounting shell (6) and is connected when it abuts against the door closing card point (54).
6. The automatic door opening and closing structure according to claim 5, characterized in that: The door opening card point (53) and the door closing card point (54) are respectively arranged on two opposite sides or on the same side of the rod body (51), and the first micro switch (7) and the second micro switch (8) are respectively arranged on two opposite sides or on the same side of the moving channel.
7. The automatic door opening and closing structure according to claim 6, characterized in that: The door opening clamping point (53) and the door closing clamping point (54) are arc-shaped grooves, trapezoidal grooves or V-shaped grooves respectively.
8. The automatic door opening and closing structure according to any one of claims 1 to 7, characterized in that: The number of teeth of the driving gear (2) is smaller than the number of teeth of the driven gear (3).
9. The automatic door opening and closing structure according to any one of claims 1 to 7, characterized in that: The reduction ratio between the driving gear (2) and the driven gear (3) is greater than or equal to 2:
1.
10. A dishwasher, characterized in that: A dishwasher comprising a main body with an opening, a door body and the automatic door opening and closing structure according to any one of claims 1 to 9, wherein the door body is arranged corresponding to the opening and is rotatably connected to the main body of the dishwasher, and the automatic door opening and closing structure is installed on the main body of the dishwasher; The free end (55) of the push-pull rod (5) away from the swing rod (4) extends out of the dishwasher body and is connected to the door body.