Rotating shaft assembly, rotating screen, door body and dish washing machine

Abstract

The utility model relates to a rotating shaft assembly, a rotating screen, a door body and a dish washing machine. The rotating shaft assembly comprises a rotating piece, a fixing piece and a shaft body. The rotating piece comprises a first fixing block and a second fixing block which are arranged at an interval; the first fixing block and the second fixing block are respectively provided with a first connecting hole and a second connecting hole which are coaxially arranged; the fixing piece comprises a connecting block, the connecting block is located between the first fixing block and the second fixing block, and a third connecting hole coaxial with the first connecting hole is formed in the connecting block; the shaft body is sequentially inserted into the first connecting hole, the third connecting hole and the second connecting hole. According to the rotating shaft assembly provided in the scheme, the assembling process is simple and reliable, only manufacturing and fit tolerances of the shaft body and the first connecting hole, the shaft body and the third connecting hole and the shaft body and the second connecting hole exist in the rotating shaft assembly, controllability is good, and reliability is high.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a shaft assembly, a rotating screen, a door body and a dishwasher. Background Art

[0002] In the rotational connection between the rotating part and the fixed part, it is usually realized by a rotary hinge. Usually, the rotary hinge is connected to the rotating part and the fixed part by a fixing method such as screws. However, the size of the rotary hinge is often limited by the inherent structure of the rotating part and the fixed part; and such a connection method requires the addition of a connecting piece of the rotating hinge and the fixed rotating hinge, which leads to an increase in the number of parts and inevitably enlarges the dimensional chain. This expansion increases the complexity and assembly error in the manufacturing process, which is not conducive to the precision control of the rotating part. Summary of the invention

[0003] Based on this, it is necessary to provide a shaft assembly, a rotating screen, a door body and a dishwasher to address the problems of the shaft assembly having many parts, complex operation and low precision.

[0004] A rotating shaft assembly, the rotating shaft assembly comprising a rotating member, a fixed member and a shaft body; the rotating member comprises a first fixed block and a second fixed block arranged at intervals, the first fixed block and the second fixed block are respectively provided with a first connecting hole and a second connecting hole arranged coaxially; the fixed member comprises a connecting block, the connecting block is located between the first fixed block and the second fixed block, and the connecting block is provided with a third connecting hole arranged coaxially with the first connecting hole; the shaft body is inserted into the first connecting hole, the third connecting hole and the second connecting hole in sequence.

[0005] In one of the embodiments, at least a portion of the hole wall of the second connecting hole abuts against the shaft body in the circumferential direction of the shaft body.

[0006] In one embodiment, the portion of the shaft corresponding to the second connecting hole is a rotation limiting portion, and the second connecting hole is at least partially a waist-shaped hole structure. The structure of the rotation limiting portion corresponds to the second connecting hole so as to be inserted into the second connecting hole.

[0007] In one embodiment, the rotating shaft assembly further includes an axial limiter, and the axial limiter includes an abutment surface facing the first fixing block, and one end of the shaft body away from the second connecting hole abuts against the abutment surface.

[0008] In one embodiment, the rotating member also includes an outer limit strip spaced apart from the first fixed block and the outer limit strip is located on the side of the first fixed block away from the second fixed block, the outer limit strip and the first fixed block together enclose an installation space with an open opening, and the axial limit member can be removably inserted into the installation space.

[0009] In one embodiment, the end surface of the first fixing block away from the second fixing block is a mounting surface, and the axial limiting member is detachably connected to the mounting surface.

[0010] In one of the embodiments, the mounting surface is concavely provided with a limiting hole, and the axial limiting member is provided with a convex block protruding from the abutting surface, and the convex block is detachably inserted into the limiting hole.

[0011] In one of the embodiments, the protrusion includes a guide surface, and the guide surface is inclined toward the installation direction of the axial limit member from an end close to the installation surface to an end away from the installation surface.

[0012] In one embodiment, the rotating member includes a guide block, which is located on a side of the first fixed block away from the second fixed block, and the guide block is provided with an open groove, and at least part of the groove wall of the groove is an arc surface coaxially arranged with the first connecting hole.

[0013] A rotating screen comprises a screen assembly and a rotating shaft assembly as described in any one of the above embodiments, wherein the screen assembly is connected to the rotating member and rotates synchronously with the rotating member.

[0014] A door body includes a rotating screen as described in the above embodiment, and also includes an inner door, an outer door and a frame clamped between the inner door and the outer door, the fixing member in the rotating screen is connected to the frame, and when the screen assembly rotates relative to the frame along with the rotating member, the screen assembly partially protrudes from the outer door.

[0015] A dishwasher comprises the door body as described in the above embodiment.

[0016] The shaft assembly provided in the above scheme has a simple and reliable assembly process, and the shaft assembly only has manufacturing and fitting tolerances between the shaft body and the first connecting hole, the shaft body and the third connecting hole, and the shaft body and the second connecting hole, so it has good controllability and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the door body in one embodiment of the present application.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the rotating screen.

[0019] Figure 3 for Figure 2 Schematic diagram of the disassembly of the central shaft assembly Figure 1 .

[0020] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0021] Figure 5 for Figure 2 Schematic diagram of the disassembly of the central shaft assembly Figure 2 .

[0022] Figure 6 for Figure 2 Schematic diagram of the assembly cross section of the central shaft assembly.

[0023] Figure 7 for Figure 3 and Figure 5 Schematic diagram of the structure of the shaft body.

[0024] Figure 8 for Figure 3 and Figure 5 Schematic diagram of the structure of the circumferential limiter.

[0025] Description of reference numerals:

[0026] 10. Door body; 100. Rotating screen; 110. Rotating shaft assembly; 111. Rotating member; 1111. First fixed block; 11111. Mounting surface; 11112. Limiting hole; 1112. Second fixed block; 1113. External limiting strip; 1114. First connecting hole; 1115. Second connecting hole; 1116. Guide block; 1117. Groove; 112. Fixing member; 1121. Connecting block; 1122. Third connecting hole; 113. Shaft body; 1131. Rotation limiting portion; 114. Axial limiting member; 1141. Abutting surface; 1142. Protrusion; 1143. Guide surface; 120. Driving assembly; 200. Outer door; 300. Inner door; 400. Frame. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] In one embodiment of the present application, a dishwasher is provided, comprising the door body 10 of any of the following embodiments, and also comprising an inner tank with a cleaning cavity, the cleaning cavity being used to hold and clean tableware, the door body 10 covering the inner tank and enclosing the cleaning cavity together with the inner tank.

[0034] See also Figure 1 , Figure 1 A schematic structural diagram of a door body 10 in an embodiment of the present application is shown. The door body 10 provided in an embodiment of the present application can be applied to a dishwasher, and can also be applied to any other electrical appliance, such as a washing machine, a steam oven, etc.

[0035] like Figure 1 As shown, the door body 10 includes a rotating screen 100 as described in the following embodiment, and also includes an inner door 300, an outer door 200, and a frame 400 sandwiched between the inner door 300 and the outer door 200, wherein the following fixing member 112 in the rotating screen 100 is connected to the frame 400, and when the following screen assembly in the rotating screen 100 rotates relative to the frame 400 along with the following rotating member 111, the screen assembly Figure 1 The portion shown protrudes from the outer door 200 .

[0036] Combination Figure 2 As shown, Figure 2 The structure diagram of the rotating screen 100 in one embodiment of the present application is shown. In one embodiment of the present application, a rotating screen 100 is provided, which can be applied to a dishwasher, or to any other electrical appliance, such as a washing machine, a steam oven, etc. In the embodiment provided by the present application, the rotating screen 100 is applied to a dishwasher to display the washing process and washing time of the dishwasher, and is installed on the above-mentioned door body 10.

[0037] like Figure 2 As shown, the rotating screen 100 includes a screen assembly (not shown) and a shaft assembly 110 as in any of the embodiments described below, and also includes a driving assembly 120. The screen assembly is connected to the rotating member 111 described below and rotates synchronously with the rotating member 111. The driving assembly 120 is used to drive the rotating member 111 to rotate relative to the fixed member 112 described below, thereby realizing the rotation of the screen assembly to open and close.

[0038] Combination Figures 3 to 5 , Figures 3 to 5 A schematic diagram of an exploded view of a rotating shaft assembly 110 in an embodiment of the present application is shown. In an embodiment of the present application, a rotating shaft assembly 110 is provided, which can be applied to the above-mentioned rotating screen 100, and can also be applied to other components that are rotatably connected, such as a rotatably connected door, etc.

[0039] like Figure 3 and Figure 4 As shown, the shaft assembly 110 includes a rotating member 111, a fixing member 112 and a shaft body 113. Figure 3 and Figure 4 As shown, the rotating member 111 includes a first fixing block 1111 and a second fixing block 1112 which are spaced apart from each other. Figure 4 As shown, the first fixing block 1111 and the second fixing block 1112 are respectively provided with a first connecting hole 1114 and a second connecting hole 1115 which are coaxially arranged for the shaft body 113 to pass through. Figure 5 As shown, the fixing member 112 includes a connecting block 1121, which is combined with Figure 6 , Figure 6 FIG. 1 shows a schematic cross-sectional view of the assembly of the shaft assembly 110. When the shaft assembly 110 is in an assembled state, the connecting block 1121 is located between the first fixing block 1111 and the second fixing block 1112. Figure 5 As shown, the connection block 1121 is provided with a third connection hole 1122 coaxially arranged with the first connection hole 1114. Figure 6 As shown, the shaft 113 is sequentially inserted into the first connection hole 1114 , the third connection hole 1122 and the second connection hole 1115 to rotatably connect the fixed member 112 and the rotating member 111 , so that the rotating member 111 can rotate relative to the fixed member 112 around the shaft 113 .

[0040] like Figure 2 and Figure 4 As shown, in this embodiment, the rotating member 111 includes two first fixed blocks 1111 and two corresponding second fixed blocks 1112. Correspondingly, the fixed member 112 includes two corresponding connecting blocks 1121. At the same time, the shaft assembly 110 also includes two corresponding shaft bodies 113, so that the rotating member 111 and the fixed member 112 are connected by two shaft bodies 113 arranged at intervals, so that the rotation connection between the two is more stable.

[0041] The first connection hole 1114 and the third connection hole 1122 are through holes arranged along their own axial direction, so as to facilitate the shaft body 113 to pass through. Optionally, in this embodiment, the second connection hole 1115 is a blind hole, which can play a limiting role in the axial direction of the shaft body 113 to prevent the shaft body 113 from being inserted too deeply in the insertion direction and causing one end of the first fixing block 1111 to fall off. In other embodiments, the second connection hole 1115 can also be a through hole.

[0042] like Figure 6 As shown, in one embodiment, at least a portion of the hole wall of the second connecting hole 1115 abuts against the shaft body 113 in the circumferential direction of the shaft body 113, so that the shaft body 113 can no longer rotate in the second connecting hole 1115, thereby allowing the shaft body 113 to rotate synchronously with the rotating member 111, so that during the rotation of the rotating member 111, the shaft body 113 only moves relative to the fixed member 112, thereby avoiding friction during the rotation process and improving the rotation reliability of the shaft assembly 110.

[0043] Combination Figure 7 , Figure 7 1 shows a schematic diagram of the structure of the shaft body 113. In one embodiment, as Figure 6 and Figure 7 As shown, the portion of the shaft body 113 corresponding to the second connection hole 1115 is a rotation limiting portion 1131, and the second connection hole 1115 is at least partially a waist-shaped hole structure, and the structure of the rotation limiting portion 1131 corresponds to the second connection hole 1115 so as to be inserted into the second connection hole 1115. In other embodiments, the rotation limiting portion 1131 may also be a polygonal prism structure, in which case the second connection hole 1115 is a corresponding polygonal hole.

[0044] like Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, the shaft assembly 110 further includes an axial stopper 114, and as shown in FIG. Figure 8 As shown, the axial stopper 114 includes an abutting surface 1141 facing the first fixing block 1111. Figure 6 As shown, one end of the shaft body 113 away from the second connecting hole 1115 abuts against the abutting surface 1141 to axially limit the shaft body 113 to prevent the shaft body 113 from moving in the opposite direction of the insertion direction and falling off during the rotation process.

[0045] like Figure 4 and Figure 6As shown, in one embodiment, the rotating member 111 also includes an outer limit strip 1113 spaced apart from the first fixed block 1111, and the outer limit strip 1113 is located on the side of the first fixed block 1111 away from the second fixed block 1112, and the outer limit strip 1113 and the first fixed block 1111 together enclose an installation space with an open opening, and the axial limit member 114 can be detachably inserted into the installation space to limit the axial limit member 114 through the outer limit strip 1113, so as to avoid unstable limiting of the shaft body 113 caused by the movement of the axial limit member 114 itself. In other embodiments, the axial stopper 114 is movably connected to other positions of the rotating member 111, for example, the axial stopper 114 is rotatably connected to the rotating member 111, and when the shaft 113 is inserted into the first connection hole 1114, the third connection hole 1122, and the second connection hole 1115, the axial stopper 114 rotates relative to the rotating member 111 and the abutting surface 1141 abuts against the shaft 113. In other embodiments, the axial stopper 114 may also be connected to the fixing member 112.

[0046] like Figure 4 and Figure 6 As shown, in one embodiment, the end surface of the first fixing block 1111 away from the second fixing block 1112 is a mounting surface 11111, and the axial limiter 114 is detachably connected to the mounting surface 11111. In other embodiments, the axial limiter 114 is detachably connected to other positions of the rotating member 111, for example, detachably connected to the outer limiter strip 1113.

[0047] like Figure 4 As shown, in one embodiment, the mounting surface 11111 is recessed with a limiting hole 11112, such as Figure 8 As shown, the axial stopper 114 is provided with a protrusion 1142 protruding from the abutment surface 1141, and the protrusion 1142 is detachably inserted into the stopper hole 11112 to achieve a snap-fit ​​connection between the axial stopper 114 and the rotating member 111. In other embodiments, the axial stopper 114 can also be connected to the mounting surface 11111 by screw fixing or the like.

[0048] like Figure 8 As shown, in one embodiment, the protrusion 1142 includes a guide surface 1143, and the guide surface 1143 is inclined toward the installation direction of the axial limit member 114 from an end close to the mounting surface 11111 to an end away from the mounting surface 11111, so that when the axial limit member 114 is installed, the protrusion 1142 is inserted into the limiting hole 11112.

[0049] like Figure 4 and Figure 6As shown, in one embodiment, the rotating member 111 includes a guide block 1116, which is located on the side of the first fixed block 1111 away from the second fixed block 1112, and the guide block 1116 is provided with an open groove 1117, and at least part of the groove wall of the groove 1117 is an arc surface coaxially arranged with the first connecting hole 1114, so as to play a preliminary limiting role on the shaft body 113 during assembly.

[0050] When the shaft body 113 needs to be assembled, it is only necessary to insert the connecting block 1121 between the first fixing block 1111 and the second fixing block 1112, and then place the shaft body 113 in the groove 1117 of the guide block 1116, and then push the shaft body 113 toward the second fixing block 1112, so that the shaft body 113 passes through the first connecting hole 1114, the third connecting hole 1122 and the second connecting hole 1115 in sequence, until the rotation limiter 1131 of the shaft body 113 is inserted into the second connecting hole 1115 and abuts against the second connecting hole 1115 in the axial and circumferential directions. The bottom wall and the peripheral wall of the connecting hole 1115, and then the axial limit piece 114 is inserted into the installation space until the protrusion 1142 is embedded in the limiting hole 11112. At this time, the abutting surface 1141 abuts against the end of the shaft body 113 away from the second fixing piece 112, thereby realizing circumferential limitation of the shaft body 113 through the second connecting hole 1115, and axial limitation of the shaft body 113 through the second connecting hole 1115 and the axial limit piece 114, thereby realizing omnidirectional limitation of the shaft body 113 and avoiding rotational instability caused by the displacement of the shaft body 113 during rotation.

[0051] The shaft assembly provided in the above scheme has a simple and reliable assembly process, and the shaft assembly only has manufacturing and fitting tolerances between the shaft body 113 and the first connecting hole 1114, the shaft body 113 and the third connecting hole 1122, and the shaft body 113 and the second connecting hole 1115, so it has good controllability and high reliability.

[0052] 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.

[0053] 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 rotating shaft assembly, characterized in that: The rotating shaft assembly comprises: The rotating member comprises a first fixing block and a second fixing block which are arranged at intervals, wherein the first fixing block and the second fixing block are respectively provided with a first connecting hole and a second connecting hole which are arranged coaxially; A fixing member, comprising a connecting block, wherein the connecting block is located between the first fixing block and the second fixing block, and the connecting block is provided with a third connecting hole coaxially arranged with the first connecting hole; The shaft body is inserted into the first connecting hole, the third connecting hole and the second connecting hole in sequence.

2. The shaft assembly according to claim 1, characterized in that: At least a portion of the hole wall of the second connecting hole abuts against the shaft body in the circumferential direction of the shaft body.

3. The shaft assembly according to claim 2, characterized in that: The portion of the shaft body corresponding to the second connecting hole is a rotation limiting portion, and the second connecting hole at least partially presents a waist-shaped hole structure. The structure of the rotation limiting portion corresponds to the second connecting hole so as to be inserted into the second connecting hole.

4. The shaft assembly according to claim 1, characterized in that: The rotating shaft assembly further includes an axial stopper, wherein the axial stopper includes an abutting surface facing the first fixing block, and an end of the shaft body away from the second connecting hole abuts against the abutting surface.

5. The shaft assembly according to claim 4, characterized in that: The rotating member also includes an outer limit strip spaced apart from the first fixed block and the outer limit strip is located on the side of the first fixed block away from the second fixed block. The outer limit strip and the first fixed block together enclose an installation space with an open opening, and the axial limit member can be removably inserted into the installation space.

6. The shaft assembly according to claim 5, characterized in that: The end surface of the first fixing block away from the second fixing block is a mounting surface, and the axial limiting member is detachably connected to the mounting surface.

7. The shaft assembly according to claim 6, characterized in that: The mounting surface is concavely provided with a limiting hole, and the axial limiting member is provided with a convex block protruding from the abutting surface, and the convex block is detachably inserted into the limiting hole.

8. The shaft assembly according to claim 7, characterized in that: The protrusion includes a guide surface, and the guide surface is inclined toward the installation direction of the axial limit member from an end close to the installation surface to an end away from the installation surface.

9. The shaft assembly according to claim 1, characterized in that: The rotating member includes a guide block, which is located on a side of the first fixed block away from the second fixed block, and the guide block is provided with an open groove, and at least part of the groove wall of the groove is an arc surface coaxially arranged with the first connecting hole.

10. A rotating screen, characterized in that: It comprises a screen assembly and a rotating shaft assembly as described in any one of claims 1 to 9, wherein the screen assembly is connected to the rotating member and rotates synchronously with the rotating member.

11. A door body, characterized in that: It includes a rotating screen as described in claim 10, and further includes an inner door, an outer door and a frame sandwiched between the inner door and the outer door, the fixing member in the rotating screen is connected to the frame, and when the screen assembly rotates relative to the frame with the rotating member, the screen assembly partially protrudes from the outer door.

12. A dishwasher, characterized in that: Comprising a door body as claimed in claim 11.

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