Cleaning machine

Abstract

The utility model relates to a cleaning machine which comprises a box body with an opening in the front side and a door body, the left side and the right side of the lower end of the door body are rotationally connected with the box body through hinge structures so that the door body can open and close the opening of the box body, and each hinge structure comprises a first hinge seat connected with the door body and a second hinge seat connected with the box body. The pull ropes are arranged on the left side and the right side of the box body in the front-back direction respectively and are in a tensioning state all the time in the working state, and the front ends of the pull ropes are connected with the first hinge seats on the corresponding sides respectively; the winches are rotationally arranged on the left side and the right side of the box body respectively, and the rear ends of the pull ropes on the corresponding sides are wound around the winches; and the driving mechanism is used for driving each winch, so that each winch rotates forwards to unscrew the pull rope on the corresponding side or rotates backwards to recover the pull rope on the corresponding side. According to the utility model, the door can be automatically opened and closed, and the door body can be opened to the maximum angle.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a cleaning machine. Background Technology

[0002] Currently, dishwashers on the market generally operate by manually opening and closing the door. For example, Chinese invention patent application number CN202410804655.8 (publication number CN118662059A) discloses a dishwasher including a door and an inner tub. The lower end of the door has a sealing strip with outwardly extending scrapers. The front end of the inner tub chassis has a retaining edge with a first step that seals against the sealing strip. The height of the first step is set higher than the water level. The lower end of the door also includes a waste disposal area. When the door is closed at an angle of 30-90 degrees, the lower end of the door covers the first step, and the projection of the waste disposal area on the chassis is below the height of the first step. The sealing strip is configured to cause the scrapers to adhere to the retaining edge and move towards the first step as the door closes, until they rest on the first step. Existing manual door opening and closing methods are not only cumbersome but also pose a risk of scalding to users.

[0003] Furthermore, during the drying process of a dishwasher, the door opens to a certain angle to expel the hot and humid air from the inner tub, facilitating the drying of the dishes. Although it has an automatic door opening function, this action is generally achieved through a push rod. Due to the limited extension length of the push rod, the door can only open to a small angle, typically around 15°, and cannot be fully opened (opening 90° from the closed position to a horizontal position). Therefore, it cannot meet the user's need to open the door to load and unload items. Summary of the Invention

[0004] The first technical problem this invention aims to solve is to provide a cleaning machine capable of automatically opening and closing doors, in contrast to existing technologies.

[0005] The second technical problem to be solved by this utility model is to provide a cleaning machine that can automatically open and close the door and open the door to the maximum angle, in contrast to the prior art.

[0006] The third technical problem to be solved by this utility model is to provide a cleaning machine that can automatically open and close the door and the opening and closing action is smooth, in contrast to the prior art.

[0007] The fourth technical problem to be solved by this utility model is to provide a cleaning machine that can automatically open and close the door and reliably maintain the closed state, in contrast to the prior art.

[0008] The technical solution adopted by this utility model to solve at least one of the above-mentioned technical problems is as follows: a cleaning machine, including a box body and a door body with a front opening, wherein the left and right sides of the lower end of the door body are respectively rotatably connected to the box body through hinge structures, so that the door body can open and close the opening of the box body, and each hinge structure includes a first hinge seat connected to the door body and a second hinge seat connected to the box body, and each first hinge seat is respectively hinged to the corresponding second hinge seat through a left and right extending rotating shaft, characterized in that it further includes:

[0009] Pull ropes are respectively set on the left and right sides of the above-mentioned box in the front-back direction, and are always in a taut state in the working state, and the front end is connected to the first hinge seat on the corresponding side respectively.

[0010] The winches are respectively rotatably mounted on the left and right sides of the aforementioned housing and are used to wind the rear ends of the corresponding pull ropes.

[0011] The drive mechanism is used to drive each winch so that each winch rotates forward to unwind the corresponding side of the pull rope, or rotates backward to retract the corresponding side of the pull rope.

[0012] Furthermore, the drive mechanism includes a drive motor, a drive gear, a transmission gear, and a rotating shaft. The rotating shaft extends left and right, and each winch is respectively mounted at its left and right ends. The drive gear is mounted on the output shaft of the drive motor, and the transmission gear is mounted in the middle of the rotating shaft and meshes with the drive gear. The drive motor drives the drive gear to rotate, which in turn drives the rotating shaft through the transmission gear, thereby achieving synchronous rotation of the winches at both ends of the rotating shaft. The forward and reverse rotation of the drive motor allows for synchronous switching of the forward and reverse rotation of each winch.

[0013] Furthermore, the driving gear is a worm extending to the left and right, while the transmission gear is a worm wheel meshing with the worm. This ensures better transmission reliability and, through meshing, facilitates the reliable closing of the door onto the opening of the housing when closed.

[0014] Furthermore, it also includes guide components, which are respectively disposed on the left and right sides of the aforementioned housing and used to guide the forward and backward movement of the corresponding pull ropes. The guide components enable the pull ropes on both sides to move smoothly forward and backward, thereby helping to ensure the smoothness of the door opening and closing action and improving the user experience.

[0015] Furthermore, each of the aforementioned guide components includes a guide wheel installed on the corresponding side of the housing, and the wheel surface of each guide wheel presses against the pull rope on the corresponding side from top to bottom. In this way, the guide wheels limit the pull rope from top to bottom and guide its forward and backward movement, which helps to keep each pull rope taut and move it smoothly back and forth.

[0016] Furthermore, each of the aforementioned guide components also includes a guide groove that extends from front to back, with each guide groove extending vertically and opening upwards. Each pull rope is threaded through the corresponding guide groove on its side and rests against the bottom of the corresponding guide groove from top to bottom. In this way, each guide groove not only limits the lateral movement of each pull rope but also limits its movement from bottom to top, while simultaneously guiding its forward and backward movement to ensure smoother forward and backward motion.

[0017] Furthermore, each of the guide components also includes a limiting block protruding from each pull rope, and limiting brackets protruding from the left and right sides of the corresponding side of the housing, each limiting bracket having an opening to form the guide groove, and each limiting bracket being located in front of the guide wheel on the corresponding side.

[0018] Furthermore, in the closed state, each limit block abuts against the corresponding limit bracket on the front and back, and each limit block is positioned in front of the corresponding limit bracket. This ensures the door remains more stably closed and prevents excessive rearward rotation of the door from exceeding the design deformation range of the door seal, thus extending the service life of the door seal.

[0019] Furthermore, the installation height of each winch is lower than the first hinge seat on the corresponding side, and the rope segment from the first hinge seat to the guide wheel on the corresponding side extends downwards from front to back, while the rope segment from the guide wheel to the winch on the corresponding side extends horizontally from front to back. This design of the extension direction of each rope decomposes the tension acting on each first hinge seat into a horizontal backward component and a vertical downward component, facilitating more stable rotation of each first hinge seat relative to the corresponding second hinge seat. This, in turn, allows the door to rotate more stably back and forth, better ensuring the smoothness of the opening and closing action.

[0020] Furthermore, the housing includes an inner liner and a base located below the inner liner. The drive mechanism is housed within this base, with the rotating shaft passing through the rear side of the base. The left and right ends of the rotating shaft protrude from the base and are respectively fitted with the winches. This design allows for a compact internal structure of the cleaning machine and a rational arrangement of the drive mechanism within the machine.

[0021] Furthermore, it also includes a controller, and the door body is equipped with a sensor for collecting door opening and closing signals. This sensor is electrically connected to the signal input terminal of the controller, and the control terminal of the controller is electrically connected to the drive motor. This facilitates user operation, better realizes automatic door opening and closing, and further enhances the user experience.

[0022] Compared with the prior art, the advantages of this utility model are as follows: Pull ropes are respectively provided on the left and right sides of the housing, with the front ends of each pull rope connected to the corresponding first hinge seat. A winch for winding the rear ends of each pull rope and a drive mechanism for driving the winch are also provided. In the initial state, the door is closed and taut by the pull ropes on both sides. When the drive mechanism drives the winch to rotate forward, the tension exerted on the door by the pull ropes on both sides briefly disappears at the moment the drive mechanism starts working. Simultaneously, the door rotates outward under its own weight, causing the first hinge seats on both sides to pull the corresponding pull ropes forward. Thus, under the combined action of the forward rotation force of each winch and the tension of each first hinge seat, the pull ropes on both sides move forward with the door, realizing the automatic opening of the washing machine and allowing the door to open to its maximum angle (the door is in a horizontal position). When the door is open, the drive mechanism drives the winches to reverse, each winch rotates and tightens the pull ropes on the corresponding side. The pull ropes on both sides pull the first hinge seat on the corresponding side backward, so that the second hinge seat corresponding to each first hinge seat rotates, thereby causing the door to rotate backward and close on the opening of the box, realizing the automatic closing of the cleaning machine. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cleaning machine in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of section A;

[0025] Figure 3 for Figure 1 A structural diagram from another direction;

[0026] Figure 4 for Figure 1 A structural diagram in another direction. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0029] like Figures 1-4 As shown, a cleaning machine includes a housing 1 with a front opening and a door 2. The left and right sides of the lower end of the door 2 are rotatably connected to the housing 1 via hinge structures 5, allowing the door 2 to open and close the opening of the housing 1. Each hinge structure 5 includes a first hinge seat 51 connected to the door 2 and a second hinge seat 52 connected to the housing 1. Each first hinge seat 51 is hinged to the corresponding second hinge seat 52 via a left-right extending pivot 53.

[0030] Furthermore, the cleaning machine of this utility model also includes pull ropes 6, winches 7, and a drive mechanism 8. The pull ropes 6 are respectively arranged on the left and right sides of the housing 1 along the front-to-back direction, and are always taut during operation, with their front ends connected to the corresponding first hinge seats 51. The winches 7 are rotatably arranged on the left and right sides of the housing 1, allowing the rear ends of the pull ropes 6 on the corresponding sides to be wound around them. The drive mechanism 8 drives each winch 7 to rotate clockwise to unwind the pull rope 6 on the corresponding side, or to rotate counterclockwise to retract the pull rope 6 on the corresponding side.

[0031] As can be seen from the above, in this utility model, pull ropes 6 are respectively provided on the left and right sides of the housing 1. The front ends of the pull ropes 6 are connected to the first hinge seats 51 on the corresponding sides. A winch 7 for winding the rear ends of each pull rope 6 and a drive mechanism 8 for driving the winch 7 are also provided. In the initial state, the door 2 closes the opening of the housing 1 and is pulled taut by the pull ropes 6 on the left and right sides. When the drive mechanism 8 drives the winch 7 to rotate forward, the tension exerted on the door 2 by the pull ropes 6 on both sides disappears briefly at the moment the drive mechanism 8 starts working. At the same time, the door 2 rotates outward under its own weight, and the first hinge seats 51 on both sides pull the pull ropes 6 on the corresponding sides forward. Thus, under the combined action of the forward rotation force of each winch 7 and the tension of each first hinge seat 51, the pull ropes 6 on both sides move forward with the door 2, realizing the automatic opening of the washing machine and opening the door 2 to the maximum angle (the door 2 is in a horizontal state). When the drive mechanism 8 drives the winch 7 to reverse in the open state, each winch 7 rotates and tightens the pull rope 6 on the corresponding side. The pull ropes 6 on both sides pull the first hinge seat 51 on the corresponding side backward, so that the second hinge seat 52 corresponding to each first hinge seat 51 rotates, thereby causing the door 2 to rotate backward and close on the opening of the box 1, realizing the automatic closing of the cleaning machine.

[0032] Furthermore, in this embodiment, the drive mechanism 8 includes a drive motor 81, a drive gear 82, a transmission gear 83, and a rotating shaft 84. The rotating shaft 84 extends laterally, and each winch 7 is respectively mounted at its left and right ends. The drive gear 82 is mounted on the output shaft of the drive motor 81, and the transmission gear 83 is mounted in the middle of the rotating shaft 84 and meshes with the drive gear 82. The drive motor 81 drives the drive gear 82 to rotate, which in turn drives the rotating shaft 84 via the transmission gear 83, thereby achieving synchronous rotation of the winches 7 at both ends of the rotating shaft 84. The synchronous switching of the forward and reverse rotation of each winch 7 is achieved by the forward and reverse rotation of the drive motor 81. Preferably,

[0033] The aforementioned driving gear 82 is a worm extending to the left and right, while the aforementioned transmission gear 83 is a worm wheel meshing with the worm. On the one hand, this can better ensure the reliability of the transmission, and on the other hand, the meshing of the two facilitates the reliable closing of the door 2 onto the opening of the housing 1 when the door is closed.

[0034] Furthermore, it also includes guide components, which are respectively disposed on the left and right sides of the aforementioned housing 1 and are used to guide the forward and backward movement of the corresponding pull ropes 6. The guide components enable the pull ropes 6 on both sides to move forward and backward smoothly, thereby helping to ensure the smoothness of the door opening and closing action and improving the user experience.

[0035] Specifically, each of the aforementioned guide components includes a guide wheel 91 installed on the corresponding side of the housing 1, and the wheel surface of each guide wheel 91 presses against the pull rope 6 on the corresponding side from top to bottom. This allows the guide wheels 91 to limit the pull rope 6 from top to bottom and guide its forward and backward movement, ensuring that the pull rope 6 remains taut and moves smoothly forward and backward. Furthermore, each of the aforementioned guide components also includes a guide groove 921 extending from front to back, with each guide groove 921 extending vertically and opening upwards. Each pull rope 6 passes through the guide groove 921 on the corresponding side and abuts against the bottom of the corresponding guide groove 921 from top to bottom. This allows the guide grooves 921 to not only limit the pull rope 6 left and right, but also limit its movement from bottom to top, while simultaneously guiding its forward and backward movement, ensuring smoother forward and backward movement. Furthermore, each of the aforementioned guide components also includes a limiting block 93 protruding from each pull rope 6, and limiting brackets 92 protruding from the corresponding left and right sides of the aforementioned housing 1. Each limiting bracket 92 has an opening to form the aforementioned guide groove 921, and each limiting bracket 92 is located in front of the corresponding guide wheel 91. In the closed state, each limiting block 93 abuts against the corresponding limiting bracket 92, and each limiting block 93 is located in front of the corresponding limiting bracket 92. This allows the door 2 to remain more stably closed, while also preventing the door 2 from rotating excessively backward beyond the design deformation range of the door seal, thus extending the service life of the door seal.

[0036] In this embodiment, preferably, the installation height of each winch 7 is lower than the first hinge seat 51 on the corresponding side. Furthermore, the section of each pull rope 6 from the first hinge seat 51 on the corresponding side to the guide wheel 91 extends downwards from front to back, while the section from the guide wheel 91 on the corresponding side to the winch 7 extends horizontally from front to back. This design of the extension direction of each pull rope 6 allows the tension exerted by each pull rope 6 on each first hinge seat 51 to be decomposed into a horizontal backward component and a vertical downward component. This facilitates more stable rotation of each first hinge seat 51 relative to the corresponding second hinge seat 52, thereby enabling the door body 2 to rotate more stably back and forth, better ensuring the smoothness of the opening and closing action.

[0037] Furthermore, the aforementioned housing 1 includes an inner liner 3, and the housing 1 also includes a base 4 located below the inner liner 3, with the aforementioned drive mechanism 8 disposed within the base 4. The aforementioned rotating shaft 84 passes through the rear side of the base 4, and its left and right ends protrude from the base 4 and are respectively fitted with the aforementioned winch 7. This allows for a compact internal structure of the cleaning machine and a reasonable arrangement of the drive mechanism 8 within the cleaning machine. Additionally, in this embodiment, preferably, each limiting bracket 92 and the base 4 are integrally formed.

[0038] Furthermore, the cleaning machine of this utility model also includes a controller (not shown), and a sensor (not shown) for collecting door opening and closing signals is provided on the door body 2. This sensor is electrically connected to the signal input terminal of the controller, and the control terminal of the controller is electrically connected to the drive motor 81. This facilitates user operation, makes automatic door opening and closing more convenient, and further enhances the user experience. In this embodiment, the sensor is a knock sensor or an image sensor. When the sensor is a knock sensor, knocking on the door body 2 can activate the automatic opening and closing of the door body 2. When the sensor is an image sensor, waving one's hand in front of the control panel of the cleaning machine can activate the automatic opening and closing of the door body 2.

Claims

1. A cleaning machine, comprising a housing (1) with a front opening and a door (2), wherein the left and right sides of the lower end of the door (2) are rotatably connected to the housing (1) via hinge structures (5) to allow the door (2) to open and close the opening of the housing (1), and each hinge structure (5) includes a first hinge seat (51) connected to the door (2) and a second hinge seat (52) connected to the housing (1), wherein each first hinge seat (51) is hinged to the corresponding second hinge seat (52) via a left-right extending pivot (53), characterized in that, Also includes: Pull ropes (6) are respectively set on the left and right sides of the box (1) in the front and back direction, and are always in a taut state in the working state, and the front end is connected to the first hinge seat (51) on the corresponding side. The winches (7) are respectively rotated and installed on the left and right sides of the box (1) and are wound around the rear end of the corresponding pull ropes (6); The drive mechanism (8) is used to drive each winch (7) so that each winch (7) rotates forward to rotate out the pull rope (6) on the corresponding side, or rotates backward to retract the pull rope (6) on the corresponding side.

2. The cleaning machine as described in claim 1, characterized in that, The drive mechanism (8) includes a drive motor (81), a drive gear (82), a transmission gear (83), and a rotating shaft (84). The rotating shaft (84) extends to the left and right, and each winch (7) is installed at the left and right ends of the rotating shaft (84). The drive gear (82) is installed on the output shaft of the drive motor (81), and the transmission gear (83) is installed in the middle of the rotating shaft (84) and meshes with the drive gear (82).

3. The cleaning machine as described in claim 2, characterized in that, The driving gear (82) is a worm extending to the left and right, and the transmission gear (83) is a worm wheel that meshes with the worm.

4. The cleaning machine as described in claim 2, characterized in that, It also includes guide components, which are respectively disposed on the left and right sides of the aforementioned housing (1) and used to guide the front and back movement of the corresponding side pull ropes (6).

5. The cleaning machine as described in claim 4, characterized in that, Each of the aforementioned guide components includes a guide wheel (91) installed on the corresponding side of the aforementioned housing (1), and the wheel surface of each guide wheel (91) is pressed from top to bottom onto the pull rope (6) on the corresponding side.

6. The cleaning machine as described in claim 5, characterized in that, Each of the aforementioned guide components also includes a guide groove (921) that runs through the front and back. Each guide groove (921) extends vertically and opens upwards, and each pull rope (6) is threaded through the guide groove (921) on the corresponding side and abuts against the bottom of the corresponding guide groove (921) from top to bottom.

7. The cleaning machine as described in claim 6, characterized in that, Each of the aforementioned guide components also includes a limiting block (93) protruding from each pull rope (6), and limiting brackets (92) protruding from the corresponding left and right sides of the aforementioned housing (1), each limiting bracket (92) having an opening to form the aforementioned guide groove (921), and each limiting bracket (92) being located in front of the corresponding guide wheel (91). Furthermore, in the closed state, each limit block (93) abuts against the limit bracket (92) on the corresponding side, and each limit block (93) is located in front of the limit bracket (92) on the corresponding side.

8. The cleaning machine according to any one of claims 5 to 7, characterized in that, The installation height of each winch (7) is lower than the first hinge seat (51) on the corresponding side. Furthermore, the rope segment of each pull rope (6) from the first hinge seat (51) on the corresponding side to the guide wheel (91) extends downward from front to back, while the rope segment from the guide wheel (91) on the corresponding side to the winch (7) extends horizontally from front to back.

9. The cleaning machine according to any one of claims 2 to 7, characterized in that, The box (1) is provided with an inner liner (3), and the box (1) also includes a base (4) located below the inner liner (3). The drive mechanism (8) is provided in the base (4), wherein the rotating shaft (84) passes through the rear side of the base (4), and the left and right ends of the rotating shaft (84) pass through the base (4) and are respectively installed with the winch (7).

10. The cleaning machine according to any one of claims 2 to 7, characterized in that, It also includes a controller, and the door body (2) is provided with a sensor for collecting door opening and closing signals. The sensor is electrically connected to the signal input terminal of the controller, and the control terminal of the controller is electrically connected to the drive motor (81).

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