A cleaning machine with door body capable of automatic opening and closing

Abstract

The present invention relates to a cleaning machine with a door body that can be opened and closed automatically, comprising a water tank body and a door body that is rotatably connected to the top edge of the water tank body, and at least one edge of the door body extends outward to form an extension area corresponding to the outer wall of the water tank body, and also comprises a driving member, a first gear, a second gear, a connecting member, a first connecting rod, a push rod, a second connecting rod, a third connecting rod, and a locking rod. Whether the door body of the present invention is locked or not and whether the door body is pushed open or not can be driven by the same driving mechanism. When in use, the driving member drives the second gear to rotate forward, the push rod moves downward away from the door body, and the first hook and the second hook gradually approach until they are hooked together, so as to lock the door body; the driving member drives the second gear to reverse, and the first hook gradually disengages from the second hook as the third connecting rod moves in the guide groove. At the same time, the push rod gradually moves upward to push the door body open. The present invention greatly simplifies the overall structure of the cleaning machine, reduces production costs, and is easy to use.

Description

Technical Field

[0001] The invention relates to an automatic door locking mechanism of a cleaning machine. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Currently, dishwashers on the market are generally divided into three types: desktop, cabinet, and tank. Among them, desktop dishwashers are integrated independent structures and are generally placed on the table for use; cabinet dishwashers are also independent structures, but need to be embedded in kitchen cabinets for use; tank dishwashers are combined with sinks and are generally installed in kitchen cabinets for use.

[0003] At present, the door structure of the cleaning machine generally has a relatively simple function. For example, in the structure disclosed in the Chinese patent application "Sink-type cleaning machine" (application number: CN201710939807.5) with application publication number CN108056732A, the cleaning machine has a sink body with a washing space and an open top, and a movably arranged top of the sink body, and a cover that can be opened or closed relative to the top opening of the sink body. Since high-temperature steam is generated during the cleaning process, the door body is locked relative to the sink body during the cleaning process. After cleaning, negative pressure is easily generated in the sink body due to condensation of water vapor in the sink body, which makes it difficult to open the door body. This requires the provision of a push rod that can push the door body open. In the prior art, the push rod is arranged separately from the door lock and driven by different driving mechanisms, making the overall structure of the cleaning machine cumbersome and costly. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cleaning machine with a door body that can automatically open and close by the same driving mechanism to lock or open the door body, based on the current status of the prior art. The cleaning machine greatly simplifies the overall structure, reduces production costs and is easy to use.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a cleaning machine with a door that can be opened and closed automatically, comprising a water tank body and a door body rotatably connected to the top edge of the water tank body, and at least one edge of the door body extends outward to form an extension area corresponding to the outer side wall of the water tank body, characterized in that: it also includes

[0006] A driving member, which is arranged on the outer wall of the water tank body and has a first gear connected to its power output end;

[0007] A second gear is rotatably disposed on the outer side wall of the water tank body and meshes with the first gear for transmission;

[0008] A connecting member, which is arranged on the second gear and rotates synchronously with the second gear, wherein the edge of the connecting member has a first connecting arm and a second connecting arm which are arranged at intervals and extend outwards;

[0009] A first connecting rod, a first end of which is rotatably connected to the first connecting arm;

[0010] A push rod is movably disposed on the outer side wall of the water tank body, wherein the first end of the push rod is rotatably connected to the first end of the first connecting rod, and the second end of the push rod extends toward the door body;

[0011] a second connecting rod, a first end of which is rotatably connected to the second connecting arm;

[0012] A third connecting rod, a first end of the third connecting rod is rotatably connected to the second end of the second connecting rod, and the second end of the third connecting rod is bent to one side to form a first hook;

[0013] A locking rod, the upper end of which is connected to the lower wall surface of the door extension area, and the lower end of which has a second hook portion bent to one side and capable of being matched and hooked with the first hook portion; and

[0014] The guide groove is arranged on the outer side wall of the water tank body and connected to the third connecting rod through the guide pin, so that the first hook part deviates from the second hook part when the top rod moves upward, and the first hook part approaches the second hook part when the top rod moves downward.

[0015] In the above scheme, the guide groove is an inverted J-shaped structure, the vertical part of the J-shaped structure is arranged between the second gear and the lock rod and keeps a distance between the lock rod and the J-shaped structure in the horizontal direction, and the bending direction of the curved part of the J-shaped structure is the same as the bending direction of the second hook. With such a structure, when the ejector rod is in the initial ejection state, the first hook can be separated from the second hook outward along the moving track of the third connecting rod in the guide groove, so as to avoid interference between the ejection state and the locking state, which affects the use.

[0016] Preferably, there are at least two guide pins arranged at intervals on the back of the third connecting rod, and the guide pins are slidably connected to the guide groove. When the outer end of the first hook is aligned with the outer end of the second hook, one guide pin is located in the curved part of the J-shaped structure of the guide groove, and the other guide pin is located in the vertical part of the J-shaped structure of the guide groove. The guide pin located above the third connecting rod is to cooperate with the J-shaped structure of the guide groove to avoid interference between the ejection state and the locking state, and the guide pin located below the third connecting rod makes the movement of the third connecting rod smoother.

[0017] Preferably, the guide pin is inserted into the guide groove and a rotating sleeve is sleeved on the outer periphery thereof so as to be able to roll with the guide groove. With such a structure, the movement of the third connecting rod can be smoother, and the unlocking and locking actions can be more flexible.

[0018] In the above schemes, the first connecting arm and the second connecting arm are arranged perpendicularly, and the second gear is provided with a first clearance groove for installing the first connecting arm and a second clearance groove for installing the second connecting arm. The connecting member in the present invention is fixed to the outer wall of the second gear by a D-shaped column, and the above structure is adopted to eliminate the relative height between the second gear and the first connecting arm and the second connecting arm, so that the connection points of the first connecting arm, the second connecting arm and the corresponding first connecting rod, the second connecting rod, the third connecting rod and the top rod and the locking rod are all located in the same plane.

[0019] Preferably, a limiting column capable of limiting the rotation position of the second gear is provided on the outer side wall of the water tank body. When the ejector rod is fully ejected and the first hook is completely separated from the second hook, the limiting column limits the second gear from continuing to rotate, so as to protect the cooperating parts from being damaged due to excessive force.

[0020] In order to facilitate installation, a slide groove is also provided on the outer side wall of the water tank body, which is arranged close to the door body and extends vertically, and the top rod can be constrained in the slide groove so as to move up and down.

[0021] Preferably, the cleaning machine further comprises an installation box and a transmission gear set, the installation box is arranged on the outer side wall of the water tank body, the first gear, the second gear, the transmission gear set, the connecting piece, the first connecting rod, the second connecting rod, the third connecting rod, the lower part of the top rod and the lower end of the locking rod are all hidden in the installation box, and the transmission gear set is rotatably arranged in the installation box and connected between the first gear and the second gear. The above-mentioned transmission gear set can play a role in reducing speed and increasing torque, and the diameter and number of gears in the transmission gear set can be adjusted according to actual needs.

[0022] As a solution to avoid interference between the ejection state and the locking state, the lower wall surface of the extension area is recessed upward to form an escape groove that can prevent the ejector from moving up to the limit position and the first hook and the second hook from being unable to disengage. The escape groove is provided to actually increase the upward movement distance of the ejector to achieve the door body ejection process, that is, when the ejector is in a stationary state, the first hook and the second hook cooperate to lock, and when the ejector just starts to move upward, the upper end of the ejector is suspended in the escape groove without contacting the door body, but as the ejector moves upward, the first hook gradually disengages from the second hook, and when the ejector stroke is greater than the height of the escape groove and applies force to the door body, the first hook has completely disengaged from the second hook. Therefore, this solution can successfully avoid interference between the ejection state and the locking state, and smoothly achieve the mutual conversion between the ejection state and the locking state of the door body.

[0023] As another solution to avoid interference between the ejection state and the locking state, the center of the second gear is O, the center of rotation of the second connecting arm relative to the first end of the second connecting rod is O1, the center of rotation of the second end of the second connecting rod relative to the first end of the third connecting rod is O2, the center of rotation of the first connecting arm relative to the first end of the first connecting rod is O3, the center of rotation of the second end of the first connecting rod relative to the ejector rod is O4, the center of the guide pin located on the upper part of the third connecting rod is O5, the center of the upper end of the ejector rod is O6, the distance between O and O1 is a, the distance between O1 and O2 is b, the distance between O and O2 is c, the distance between O2 and O5 is d, the distance between O1 and O5 is e, the distance between O3 and O4 is f, the distance between O and O3 is g, the distance between O3 and O6 is h, the distance between O4 and O6 is i, and the distance between O and O4 is j.

[0024]

[0025] When the above-mentioned avoidance groove does not exist, the upper end of the push rod will exert force on the door body as soon as it starts to move, which requires that the sliding speed of the third connecting rod along the guide groove is greater than the upward movement speed of the push rod. The present invention adopts the above-mentioned structure to achieve that the sliding speed of the third connecting rod along the guide groove is greater than the upward movement speed of the push rod, thereby avoiding interference between the ejection state and the locking state, and smoothly realizing the mutual conversion between the ejection state and the locking state of the door body.

[0026] Compared with the prior art, the advantages of the present invention are that whether the door body is locked or not and whether the door body is pushed open or not can be driven by the same driving mechanism. When in use, the driving member drives the second gear forward, the push rod moves downward away from the door body, and the first hook and the second hook gradually approach each other until they are hooked together, thereby locking the door body; the driving member drives the second gear to reverse, and the first hook gradually disengages from the second hook as the third connecting rod moves in the guide groove. At the same time, the push rod gradually moves upward to push the door body open. The present invention greatly simplifies the overall structure of the cleaning machine, reduces production costs and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention (door body top open state);

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of the hidden installation box;

[0029] Figure 3 This is a schematic diagram of the structure of the hidden part installation box in Example 1 of the present invention (door body closed state);

[0030] Figure 4This is a schematic diagram of the structure of a part of the installation box in Example 1 of the present invention;

[0031] Figure 5 Schematic diagram of the assembly structure of the third connecting rod and the guide pin in Example 1 of the present invention;

[0032] Figure 6 This is a schematic diagram of the assembly structure of the second gear and the connecting member in Example 1 of the present invention;

[0033] Figure 7 for Figure 6 Exploded diagram of

[0034] Figure 8 This is a schematic diagram of the structure of Example 2 of the present invention (door closed state). DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1:

[0037] like Figures 1 to 7 As shown, the cleaning machine with an automatically openable door in this embodiment includes a water tank body 1, a door body 2 and a driving mechanism 100. The water tank body 1 is hollow inside to form a washing chamber. The top of the water tank body 1 has an opening 12 connected to the washing chamber. An edge of the door body 2 is rotatably connected to a top edge of the water tank body 1 and can open or cover the opening 12. The area of ​​the door body 2 is larger than the area of ​​the opening 12. The door body 2 extends outward from the edge of the corresponding opening 12 to form an extension area 21 corresponding to the outer side wall of the water tank body 1. The driving mechanism 100 is used to lock the door body 2 relative to the water tank body 1 or to push the door body 2 open relative to the water tank body 1.

[0038] In this embodiment, the driving mechanism 100 includes a mounting box 101, a driving member 3, a first gear 4, a transmission gear set 9, a second gear 5, a connecting member 6, a first connecting rod 10, a top rod 7, a second connecting rod 20, a third connecting rod 30, and a locking rod 8. The mounting box 101 is arranged on the outer wall of the water tank body 1. The mounting box 101 is used to install the above-mentioned first gear 4, the transmission gear set 9, the second gear 5, the connecting member 6, the first connecting rod 10, the top rod 7, the second connecting rod 20, and the third connecting rod 30. The lower part of the top rod 7 and the lower end of the locking rod 8 are hidden in the mounting box 101. The driving member 3 is a motor, which is arranged on the outer wall of the water tank body 1 and is connected to the first gear 4 on the power output end. The transmission gear set 9 includes a plurality of gears that mesh with each other and are rotatably arranged in the mounting box 101. The first gear 4 is meshed and connected with the initial gear in the transmission gear set 9. The second gear 5 is rotatably arranged in the mounting box 101 and is meshed and connected with the terminal gear of the transmission gear set 9. The transmission gear set 9 can play a role in reducing speed and increasing torque. The diameter and number of gears in the transmission gear set 9 can be adjusted according to actual needs. The connecting member 6 is arranged on the second gear 5 and rotates synchronously with the second gear 5. The edge of the connecting member 6 has a first connecting arm 61 and a second connecting arm 62 arranged at intervals and extending outward. The connecting member 6 is fixed to the outer wall of the second gear 5 through a D-shaped column 51 on the side wall of the second gear 5. The first connecting arm 61 and the second connecting arm 62 are arranged perpendicularly. The first end of the first connecting rod 10 is rotatably connected to the first connecting arm 61, and the top rod 7 is movably arranged on the outer wall of the water tank body 1. The side wall of the installation box 101 is provided with a slide groove 102 arranged near the door body 2 and extending vertically. The top rod 7 can be restrained in the slide groove 102 to move up and down. The first end of the top rod 7 is rotatably connected to the first end of the first connecting rod 10, and the second end of the top rod 7 extends toward the door body 2. The first end of the second connecting rod 20 is rotatably connected to the second connecting arm 62, the first end of the third connecting rod 30 is rotatably connected to the second end of the second connecting rod 20, the second end of the third connecting rod 30 is bent to one side to form a first hook portion 301, the upper end of the lock rod 8 is connected to the lower wall surface of the extension area 21 of the door body 2, the lower end of the lock rod 8 has a second hook portion 81 bent to one side and capable of being hooked with the first hook portion 301, and the second hook portion 81 is arranged opposite to the hooking direction of the first hook portion 301. A guide groove 40 for guiding the movement trend of the third connecting rod 30 is opened on the side wall of the installation box 101, and the back of the third connecting rod 30 is slidably connected to the guide groove 40 through a guide pin 302, so that the first hook portion 301 deviates from the second hook portion 81 when the top rod 7 moves upward, and the first hook portion 301 is close to the second hook portion 81 when the top rod 7 moves downward.

[0039] Specifically, the guide groove 40 is an inverted J-shaped structure, and the vertical portion 401 on the J-shaped structure is arranged between the second gear 5 and the lock rod 8 and maintains a small spacing with the lock rod 8 in the horizontal direction. The bending direction of the curved portion 402 on the J-shaped structure is the same as the bending direction of the second hook 81. With such a structure, when the ejector 7 is in the initial ejection state, the first hook 301 can be separated from the second hook 81 outward along the moving track of the third connecting rod 30 in the guide groove 40, so as to avoid interference between the ejection state and the locking state, which affects the use. In this embodiment, there are two guide pins 302 arranged at a vertical interval on the back of the third connecting rod 30, and the guide pins 302 can be slidably connected to the guide groove 40. When the outer end of the first hook 301 is aligned with the outer end of the second hook 81, one guide pin 302 is located in the curved portion 402 of the J-shaped structure of the guide groove 40, and the other guide pin 302 is located in the vertical portion 401 of the J-shaped structure of the guide groove 40. The guide pin 302 located above the third link 30 is to cooperate with the J-shaped structure of the guide groove 40 to avoid interference between the ejection state and the locking state. The guide pin 302 located below the third link 30 can not only cooperate with the guide pin 302 above it, but also make the movement of the third link 30 smoother. The guide pin 302 is inserted into the guide groove 40 and is sheathed with a rotating sleeve 303 that can roll with the guide groove 40. With such a structure, the movement of the third link 30 can be smoother, and the unlocking and locking actions can be more flexible.

[0040] In this embodiment, the second gear 5 is provided with a first clearance groove 52 for installing the first connecting arm 61 and a second clearance groove 53 for installing the second connecting arm 62. This structure is to eliminate the relative height between the second gear 5 and the first connecting arm 61 and the second connecting arm 62, so that the connection points of the first connecting arm 61, the second connecting arm 62 and the corresponding first connecting rod 10, the second connecting rod 20, the third connecting rod 30 and the top rod 7 and the locking rod 8 are all located in the same plane, so that the relative rotation between the various components can be smoothly carried out. A limiting column 54 that can limit the rotation position of the second gear 5 is provided on the side wall of the installation box 101. When the top rod 7 is fully ejected and the first hook 301 is completely separated from the second hook 81, the above-mentioned limiting column 54 limits the second gear 5 from continuing to rotate, so as to protect the various components that cooperate with each other from being damaged due to excessive force.

[0041] In this embodiment, the lower wall surface of the extension area 21 is recessed upward to form an escape groove 210, which can prevent the push rod 7 from moving upward and pressing the door body 2 so that the first hook portion 301 and the second hook portion 81 cannot be separated. The provision of the avoidance groove 210 actually increases the upward movement distance of the push rod 7 to realize the opening process of the door body 2, that is, when the push rod 7 is in a stationary state, the upper edge of the push rod 7 is located at the lower edge of the avoidance groove 210, and the first hook 301 cooperates with the second hook 81 to lock, and when the push rod 7 just starts to move upward, the upper end of the push rod 7 is suspended in the avoidance groove 210 without contacting the door body 2, but as the push rod 7 moves upward, the first hook 301 gradually disengages from the second hook 81, and when the stroke of the push rod 7 is greater than the height of the avoidance groove 210 and a force is applied to the door body 2, the first hook 301 has completely disengaged from the second hook 81. Therefore, this scheme can successfully avoid interference between the ejection state and the locking state, and smoothly realize the mutual conversion between the ejection state and the locking state of the door body 2.

[0042] When using the cleaning machine of this embodiment, the driving member 3 drives the second gear 5 to move forward, the push rod 7 moves downward away from the door body 2, and the first hook 301 and the second hook 81 gradually approach each other until they are hooked together, thereby locking the door body 2; the driving member 3 drives the second gear 5 to reverse, and the first hook 301 gradually disengages from the second hook 81 as the third connecting rod 30 moves in the guide groove 40. At the same time, the push rod 7 gradually moves upward to push open the door body 2, which is easy to use.

[0043] Embodiment 2:

[0044] The difference between this embodiment and the first embodiment is that the solution for avoiding the interference between the ejection state and the locking state in this embodiment is different from that in the first embodiment.

[0045] like Figure 8 As shown, in this embodiment, the avoidance groove 210 may not be provided on the door body 2, but the avoidance is achieved by controlling the movement speed of the third connecting rod 30 and the top rod 7. The center of the second gear 5 is O, the center of rotation of the second connecting arm 62 relative to the first end of the second connecting rod 20 is O1, the center of rotation of the second end of the second connecting rod 20 relative to the first end of the third connecting rod 30 is O2, the center of rotation of the first connecting arm 61 relative to the first end of the first connecting rod 10 is O3, the center of rotation of the second end of the first connecting rod 10 relative to the top rod 7 is O4, the center of the guide pin 302 located on the upper part of the third connecting rod 30 is O5, the center of the upper end of the top rod 7 is O6, the distance between O and O1 is a, the distance between O1 and O2 is b, the distance between O and O2 is c, the distance between O2 and O5 is d, the distance between O1 and O5 is e, the distance between O3 and O4 is f, the distance between O and O3 is g, the distance between O3 and O6 is h, the distance between O4 and O6 is i, the distance between O and O4 is j,

[0046]

[0047] When the avoidance groove 210 in Example 1 does not exist, the upper end of the push rod 7 will exert force on the door body 2 as soon as it starts to move, which requires that the sliding speed of the third connecting rod 30 along the guide groove 40 is greater than the upward movement speed of the push rod 7. By adopting the above structure, the sliding speed of the third connecting rod 30 along the guide groove 40 can be greater than the upward movement speed of the push rod 7, thereby avoiding interference between the ejection state and the locking state, and smoothly realizing the mutual conversion between the ejection state and the locking state of the door body 2.

Claims

1. A cleaning machine with an automatically openable door, comprising a water tank body (1) and a door body (2) rotatably connected to the top edge of the water tank body (1), wherein at least one edge of the door body (2) extends outward to form an extension area (21) corresponding to the outer side wall of the water tank body (1), characterized in that: Also includes A driving member (3) is arranged on the outer wall of the water tank body (1) and a first gear (4) is connected to the power output end; A second gear (5) is rotatably disposed on the outer wall of the water tank body (1) and meshes with the first gear (4) for transmission; A connecting member (6) is arranged on the second gear (5) and rotates synchronously with the second gear (5), and the edge of the connecting member (6) has a first connecting arm (61) and a second connecting arm (62) which are arranged at intervals and extend outwards; A first connecting rod (10), a first end of which is rotatably connected to the first connecting arm (61); A top rod (7) is movably disposed on the outer side wall of the water tank body (1), wherein the first end of the top rod (7) is rotatably connected to the first end of the first connecting rod (10), and the second end of the top rod (7) extends toward the door body (2); A second connecting rod (20), a first end of the second connecting rod (20) being rotatably connected to the second connecting arm (62); A third connecting rod (30), wherein a first end of the third connecting rod (30) is rotatably connected to a second end of the second connecting rod (20), and the second end of the third connecting rod (30) is bent to one side to form a first hook portion (301); A locking rod (8), the upper end of which is connected to the lower wall surface of the extension area (21) of the door body (2), and the lower end of which has a second hook portion (81) bent to one side and capable of being matched and hooked with the first hook portion (301); and A guide groove (40) is provided on the outer wall of the water tank body (1) and is connected to the third connecting rod (30) via a guide pin (302), so that when the top rod (7) moves upward, the first hook portion (301) deviates from the second hook portion (81), and when the top rod (7) moves downward, the first hook portion (301) approaches the second hook portion (81); The guide groove (40) is an inverted J-shaped structure, the vertical portion (401) on the J-shaped structure is arranged between the second gear (5) and the locking rod (8) and maintains a distance from the locking rod (8) in the horizontal direction, and the bending direction of the curved portion (402) on the J-shaped structure is the same as the bending direction of the second hook (81); when the outer end of the first hook (301) and the outer end of the second hook (81) are aligned up and down, one guide pin (302) is located in the curved portion (402) of the J-shaped structure of the guide groove (40), and the other guide pin (302) is located in the vertical portion (401) of the J-shaped structure of the guide groove (40); The center of the second gear (5) is O, the center of rotation of the second connecting arm (62) relative to the first end of the second connecting rod (20) is O1, the center of rotation of the second end of the second connecting rod (20) relative to the first end of the third connecting rod (30) is O2, the center of rotation of the first connecting arm (61) relative to the first end of the first connecting rod (10) is O3, the center of rotation of the second end of the first connecting rod (10) relative to the top rod (7) is O4, the center of the guide pin (302) located on the upper part of the third connecting rod (30) is O5, the center of the upper end of the top rod (7) is O6, the distance between O and O1 is a, the distance between O1 and O2 is b, the distance between O and O2 is c, the distance between O2 and O5 is d, the distance between O1 and O5 is e, the distance between O3 and O4 is f, the distance between O and O3 is g, the distance between O3 and O6 is h, the distance between O4 and O6 is i, and the distance between O and O4 is j.

2. The cleaning machine with an automatically openable door according to claim 1, characterized in that: There are at least two guide pins (302) which are spaced apart and arranged on the back of the third connecting rod (30). The guide pins (302) are slidably connected to the guide grooves (40).

3. The cleaning machine with automatically openable door according to claim 2, characterized in that: The guide pin (302) is inserted into the guide groove (40) and is sleeved on its outer circumference with a rotating sleeve (303) that can roll with the guide groove (40).

4. The cleaning machine with automatically openable door according to claim 1, characterized in that: The first connecting arm (61) and the second connecting arm (62) are arranged perpendicularly, and the second gear (5) is provided with a first clearance groove (52) for installing the first connecting arm (61) and a second clearance groove (53) for installing the second connecting arm (62).

5. The cleaning machine with an automatically openable door according to claim 1, characterized in that: A limiting column (54) capable of limiting the rotation position of the second gear (5) is provided on the outer side wall of the water tank body (1).

6. The cleaning machine with automatically openable door according to claim 1, characterized in that: The outer side wall of the water tank body (1) is also provided with a slide groove (102) arranged close to the door body (2) and extending vertically, and the top rod (7) is constrained in the slide groove (102) so as to be movable up and down.

7. The cleaning machine with an automatically openable door according to claim 1, characterized in that: The invention also comprises a mounting box (101) and a transmission gear set (9); the mounting box (101) is arranged on the outer wall of the water tank body (1); the first gear (4), the second gear (5), the transmission gear set (9), the connecting member (6), the first connecting rod (10), the second connecting rod (20), the third connecting rod (30), the lower part of the top rod (7) and the lower end of the locking rod (8) are all hidden in the mounting box (101); the transmission gear set (9) is rotatably arranged in the mounting box (101) and connected between the first gear (4) and the second gear (5).

8. The cleaning machine with an automatically openable door according to any one of claims 1 to 7, characterized in that: The lower wall surface of the extension area (21) is recessed upward to form an avoidance groove (210) that can prevent the push rod (7) from moving upward to the limit position and preventing the first hook portion (301) and the second hook portion (81) from being able to separate.

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