Door body and cleaning equipment

Abstract

The utility model relates to a door body and cleaning equipment. The door body comprises a main body, a rotating screen, a driving piece and a transmission assembly. The rotating screen is rotatably connected to the main body around a rotating axis and has an opening position, and when the rotating screen is located at the opening position, at least part of the rotating screen protrudes out of the main body; the transmission assembly is in transmission connection between the driving part and the rotating screen, the transmission assembly comprises a driving rod and a driven rod which are sequentially and rotationally connected, the driven rod is rotationally connected to the rotating screen, the driven rod and the rotating axis are arranged in a non-intersecting mode, and when the rotating screen is located at the opening position, the included angle alpha between the driving rod and the driven rod ranges from 180 degrees to 185 degrees. According to the scheme, the rotating screen is stressed at the opening position, the tangential force borne by the driving rod is minimum, so that position self-locking of the driving rod is achieved, the driving rod cannot rotate when the rotating screen is stressed, and therefore the driving piece is protected.

Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to door bodies and cleaning equipment. Background Art

[0002] When an appliance is provided with a screen that can flip upwards and a drive motor is used to provide kinetic energy for the screen to flip, the screen in the flipped open state usually protrudes from the outer surface of the appliance, so that the user has the conditions to directly pull the screen in the open state. The drive motor usually adopts a worm gear transmission with a self-locking function so that the screen can stay in a preset position without other forces. When the user directly pulls the open screen, there is a tendency to cause the screen to flip, and the screen also exerts a force on the drive motor during the pulling process, which can easily cause the drive motor to be damaged due to excessive load. Summary of the invention

[0003] Based on this, it is necessary to provide a door body and cleaning equipment to address the problem that when the flip screen of an electrical appliance is subjected to force, the reaction force on the drive motor easily causes the drive motor to be overloaded and damaged.

[0004] A door body, comprising a main body, a rotating screen, a driving member and a transmission assembly; the rotating screen is rotatably connected to the main body around a rotating axis and has an open position, when the rotating screen is in the open position, at least part of the rotating screen protrudes from the main body; the transmission assembly is transmission-connected between the driving member and the rotating screen, and the transmission assembly comprises an active rod and a driven rod that are rotationally connected in sequence, the driven rod is rotationally connected to the rotating screen, and the driven rod and the rotating axis are arranged non-intersectingly, when the rotating screen is in the open position, the angle α between the active rod and the driven rod is in the range of 180°-185°.

[0005] In one embodiment, the driving member is fixedly connected to the main body, and one end of the active rod away from the driven rod is transmission-connected to the driving member.

[0006] In one embodiment, the rotating screen further has a closed position, and when the rotating screen rotates from the closed position to the open position, the angle α between the active rod and the driven rod increases.

[0007] In one embodiment, the main body includes a front face, and the rotating screen also includes a screen face. When the rotating screen is in the closed position, the screen face is parallel to the front face, and when the rotating screen is in the open position, the screen face is inclined relative to the front face.

[0008] In one embodiment, the rotating screen further includes a handle surface disposed opposite to the screen surface.

[0009] In one of the embodiments, the handle surface is concavely provided with a handle groove.

[0010] In one embodiment, the driven rod is convexly provided with a limiting member, and the limiting member is located on a rotation path of the rotating screen from the open position to the closed position, and when the rotating screen is located at the open position, the limiting member abuts against the rotating screen.

[0011] In one embodiment, when the rotating screen rotates from the closed position to the open position, the limiting member gradually approaches until it abuts against the rotating screen.

[0012] In one embodiment, the rotating screen includes a first connection and a second connection arranged at intervals, one of the first connection and the second connection is used to connect the driven rod, and the other of the first connection and the second connection is coaxially arranged with the rotation axis and rotatably connected to the main body.

[0013] A cleaning device comprises the door body as described in any of the above embodiments.

[0014] In the above scheme, by setting the angle between the active rod and the driven rod in the transmission assembly to 180° to 185° when the rotating screen is in the open position, the rotating screen is subjected to force in the open position, and the tangential force on the active rod is minimized, so that the active rod can be self-locked and will not rotate when the rotating screen is subjected to force, thereby protecting the driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure when the rotating screen in the door body is in the open position in one embodiment of the present application.

[0016] Figure 2 for Figure 1 Front view of the middle door body.

[0017] Figure 3 for Figure 2 Schematic diagram of the AA section.

[0018] Figure 4 for Figure 1 Schematic diagram of the structure when the rotating screen of the door body is in the closed position.

[0019] Figure 5 for Figure 4 Front view of the middle door body.

[0020] Figure 6 for Figure 5Schematic diagram of the BB section.

[0021] Figure 7 for Figure 3 Force analysis of the transmission components of the middle door body Figure 1 .

[0022] Figure 8 for Figure 3 Force analysis of the transmission components of the middle door body Figure 2 .

[0023] Fig. 9 for Figure 3 Force analysis of the transmission components of the middle door body Figure 3 .

[0024] Description of reference numerals:

[0025] 100, door body; 110, main body; 111, placement slot; 112, front end surface; 120, rotating screen; 121, screen surface; 122, handle surface; 123, first connection point; 124, second connection point; 130, driving member; 140, transmission assembly; 141, active rod; 142, driven rod; 1421, limit member; 150, first rotating shaft; 160, second rotating shaft; 170, rotating shaft. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 present application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0032] In one embodiment of the present application, a cleaning device is provided, which can be a dishwasher by way of example. The cleaning device includes an inner tank having a cleaning cavity, and also includes a door body 100 in any of the following embodiments, which can cover the inner tank to seal the cleaning cavity for easy cleaning in the cleaning cavity.

[0033] See also Figure 1 , Figure 1FIG. 1 shows a schematic diagram of the structure of a door body 100 in an embodiment of the present application. An embodiment of the present application provides a door body 100, such as Figure 1 As shown, the door body 100 includes a main body 110, a rotating screen 120, a driving member 130 and a transmission assembly 140. Figure 1 As shown, in this embodiment, the main body 110 includes a front end surface 112 having a placement groove 111, and the rotating screen 120 is rotatably connected to the main body 110 around a rotation axis, and the rotating screen 120 has the following Figure 1 The open position shown and Figure 4 In the present embodiment, the door body 100 further comprises a rotating shaft 170 coaxially arranged with the rotation axis, and the rotating shaft 170 rotatably connects the rotating screen 120 and the main body 110, so that the rotating screen 120 can rotate relative to the main body 110 around the rotation axis. The rotating screen 120 rotates around the central axis of the screen shaft, and more preferably, there are two screen shafts, which are coaxially arranged and respectively located at the two ends of the rotating screen 120, so that the rotating screen 120 with a longer length is stable when rotating.

[0034] like Figure 1 As shown, when the rotating screen 120 is in the open position, at least a portion of the rotating screen 120 protrudes from the main body 110; Figure 4 As shown, when the rotating screen 120 is in the closed position, at least a portion of the rotating screen 120 is placed in the placement groove 111. Figure 4 In the illustrated embodiment, when the rotating screen 120 is in the closed position, the rotating screen 120 is completely accommodated in the placement groove 111 to prevent the rotating screen 120 from protruding from the front surface 112 when not in use and causing the rotating screen 120 to bump or injure the user.

[0035] The driving member 130 is used to provide kinetic energy for the rotation of the rotating screen 120. Figure 3 and Figure 6 As shown, in one embodiment, the driving member 130 is fixedly connected to the main body 110 .

[0036] like Figure 3 and Figure 6 As shown, the transmission assembly 140 is transmission-connected between the driving member 130 and the rotating screen 120, and the transmission assembly 140 includes an active rod 141 and a driven rod 142 which are rotationally connected in sequence, one end of the active rod 141 is connected to the output shaft of the driving member 130, and can rotate under the drive of the output shaft, the other end of the active rod 141 is connected to the driven rod 142, and the end of the driven rod 142 away from the active rod 141 is rotationally connected to the rotating screen 120.

[0037] like Figure 3 and Figure 6As shown, the main body 110 further includes a first rotating shaft 150 and a second rotating shaft 160 , wherein the first rotating shaft 150 is used to rotationally connect the active rod 141 and the driven rod 142 , and the second rotating shaft 160 is used to rotationally connect the driven rod 142 and the rotating screen 120 .

[0038] like Figure 3 and Figure 6 As shown, the driven rod 142 and the rotation axis are arranged non-intersectingly, so that the rotation of the driven rod 142 can drive the rotating screen 120 to rotate around the rotation axis.

[0039] like Figure 3 and Figure 6 As shown, in one embodiment, as Figure 3 As shown, the rotating screen 120 includes a first connection 123 and a second connection 124 which are arranged at intervals, one of which is used to connect the driven rod 142, and the other of which is coaxially arranged with the rotation axis and rotatably connected to the main body 110. In this embodiment, the first connection 123 is coaxially arranged with the rotation axis and is used to cooperate with the rotating shaft 170 to be rotatably connected to the main body 110, and the second connection 124 is used to cooperate with the first rotating shaft 150 to be rotatably connected to the driven rod 142. When the driven rod 142 moves under the rotation of the active rod 141, it can drive the second connection 124 of the rotating screen 120 to rotate around the rotation axis of the first connection 123, thereby realizing the rotation of the rotating screen 120.

[0040] Combination Figure 3 and Figure 6 As shown, during the rotation of the rotating screen 120, the main body 110, the active rod 141, the driven rod 142 and the rotating screen 120 form a four-link structure, wherein the line between the rotation axis of the rotating screen 120 and the rotation axis of the active rod 141 (i.e., the axis of the output shaft of the driving member 130) forms the first link, which is recorded as L1 in the following text and in the accompanying drawings for the convenience of description; the active rod 141 is equivalent to the second link, recorded as L2; ​​the driven rod 142 is equivalent to the third link, recorded as L3; the line between the position where the driven rod 142 rotates to connect the rotating screen 120 and the axis of the rotating shaft of the rotating screen 120 forms the fourth link, recorded as L4. At the same time, for the convenience of analysis and description, the plane where the screen surface 121 of the rotating screen 120 is located is also recorded as L5. Among them, L1, L2, L3 and L4 together form a four-link structure.

[0041] It can be understood that when the rotating screen 120 in the open state is subjected to a force of pulling up or pressing down by the user, the rotating screen 120 has a tendency to rotate in the direction from the closed position to the open position or from the open position to the closed position. At this time, the rotating screen 120 has a tendency to drive the driven rod 142 to drive the active rod 141 to rotate, which is opposite to the force applied to the active rod 141 by the transmission member with a self-locking function in the driving member 130. If the force is transmitted to the active rod 141, the active rod 141 and / or the driving member 130 will be subjected to a large load and damaged.

[0042] Combination Figures 7 to 9 As shown, the force analysis of the above four-bar linkage structure is carried out. Figures 7 to 9 1 shows the state of the four-bar linkage structure when the rotating screen 120 is located at any position between the open position and the closed position. Figure 7 As shown in the figure, taking the initial force F0 on the rotating screen 120 as an example, at this time, the force in the same direction as the extension direction of L4 is discharged (this part of the force has no effect on L4), and the actual effective force on L4 is F. The force F on L4, the tangential force F1 acting perpendicularly on L4 is the force that can drive L4 to rotate, F2 is the resultant force of the active rod 141 on the driven rod 142, and the force F1 applied in the extension direction of the L3 rod is the force that can be transmitted from the L3 rod to the L2 rod, which is marked as F 1x ,F 1x Acts on F 3x The tangential force is F 3x .

[0043] The tangential force F on the L2 rod 3x is the force that can actually drive the L2 rod to rotate. After analysis, it can be known that F 3x =F 1x ×cos(π-∠α)=-F 1x ×cos∠α=−F×cos∠γ×sin∠β×cos∠α. In practical applications, the size of ∠γ is related to the set positions of the first connection point 123 and the second connection point 124 of the rotating screen 120 , and does not change during the rotation of the rotating screen 120 .

[0044] Combination Figure 3 and Figure 6 As shown, in one embodiment, when the rotating screen 120 rotates from the closed position to the open position, the angle α between the active rod 141 and the driven rod 142 increases.

[0045] like Figure 3As shown, when the rotating screen 120 is in the open position, the angle α between the active rod 141 and the driven rod 142 is in the range of 180°-185°. At this time, the tangential force on the active rod 141 is minimal when the rotating screen 120 is subjected to force, so that the active rod 141 can be self-locked in position and will not rotate when the rotating screen 120 is subjected to force, thereby protecting the driving member 130.

[0046] In one embodiment, the rotating screen 120 also includes a screen surface 121, which is used to display the content displayed on the screen. When the rotating screen 120 is in a closed position, the screen surface 121 is parallel to the front surface 112. When the rotating screen 120 is in an open position, the screen surface 121 is tilted relative to the front surface 112, so as to be tilted higher than the user's tilt setting of the rotating screen 120, making it easier for the user to see the content displayed on the screen surface 121, thereby optimizing the user experience.

[0047] In one embodiment, the rotating screen 120 further includes a handle surface 122 disposed opposite to the screen surface 121, so that the user can pull the rotating screen 120 through the handle surface 122, and can also be used to open and close the door body 100, effectively solving the problem of the handle hitting people or affecting the screen position caused by the convex or concave handle of the existing built-in dishwasher. In some embodiments, the handle surface 122 is concavely provided with a handle groove (not shown) to facilitate the user to apply force.

[0048] like Figure 3 As shown, in one of the embodiments, the driven rod 142 is convexly provided with a limit piece 1421, and the limit piece 1421 is located on the rotation path of the rotating screen 120 from the open position to the closed position. When the rotating screen 120 is in the open position, the limit piece 1421 abuts against the rotating screen 120, so as to support the rotating screen 120 through the limit piece 1421 to prevent the screen from shaking, and also enable the force applied by the user clicking or pressing the rotating screen 120 to interact with the abutment of the limit piece 1421, so as to reduce the force on the active rod 141, thereby reducing the damage to the driving member 130 caused by the force applied by the user clicking or pressing the rotating screen 120.

[0049] Combination Figure 6 and Figure 3 As shown, in one embodiment, when the rotating screen 120 rotates from the closed position to the open position, the limiting member 1421 gradually approaches until it abuts against the rotating screen 120, so that during the rotation of the rotating screen 120, the rotating screen 120 is driven by the driven rod 142, and the limiting member 1421 does not interfere with the rotation of the rotating screen 120.

[0050] In the above scheme, by setting the angle of the active rod 141 and the driven rod 142 in the transmission assembly 140 to 180° to 185° when the rotating screen 120 is in the open position, the rotating screen 120 is subjected to force in the open position, and the tangential force on the active rod 141 is minimized, so that the position of the active rod 141 is self-locking, and the active rod 141 will not rotate when the rotating screen 120 is subjected to force, thereby protecting the driving member 130.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A door body, characterized in that: The door body comprises: main body; a rotating screen, rotatably connected to the main body about a rotation axis and having an open position, wherein when the rotating screen is located at the open position, at least a portion of the rotating screen protrudes from the main body; A driving member and a transmission assembly, wherein the transmission assembly is transmission-connected between the driving member and the rotating screen, and the transmission assembly includes an active rod and a driven rod which are rotationally connected in sequence, the driven rod is rotationally connected to the rotating screen, and the driven rod and the rotation axis are arranged non-intersectingly, and when the rotating screen is in the open position, the angle α between the active rod and the driven rod is in the range of 180°-185°.

2. The door body according to claim 1, characterized in that: The driving member is fixedly connected to the main body, and one end of the active rod away from the driven rod is transmission-connected to the driving member.

3. The door body according to claim 1, characterized in that: The rotating screen also has a closed position. When the rotating screen rotates from the closed position to the open position, the angle α between the active rod and the driven rod increases.

4. The door body according to claim 3, characterized in that: The main body includes a front face, and the rotating screen also includes a screen face. When the rotating screen is in the closed position, the screen face is parallel to the front face, and when the rotating screen is in the open position, the screen face is inclined relative to the front face.

5. The door body according to claim 4, characterized in that: The rotating screen further comprises a handle surface which is arranged opposite to the screen surface.

6. The door body according to claim 5, characterized in that: The handle surface is concavely provided with a handle groove.

7. The door body according to claim 4, characterized in that: The driven rod is convexly provided with a limiting member, and the limiting member is located on a rotation path of the rotating screen from the open position to the closed position. When the rotating screen is located at the open position, the limiting member abuts against the rotating screen.

8. The door body according to claim 7, characterized in that: When the rotating screen rotates from the closed position to the open position, the limiting member gradually approaches until it abuts against the rotating screen.

9. The door body according to claim 1, characterized in that: The rotating screen includes a first connection point and a second connection point which are spaced apart from each other, one of which is used to connect the driven rod, and the other of which is coaxially arranged with the rotation axis and rotationally connected to the main body.

10. A cleaning device, characterized in that: Comprising a door body as described in any one of claims 1-9.

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