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

By designing a removable insertable shaft assembly, the friction problem of the shaft between the rotating member and the fixed member is solved, and the stability of the rotating connection and the reliability of the overall structure are improved.

CN222823541UActive Publication Date: 2025-05-02NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202422012842.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-05-02
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

The shaft creates friction on the contact surface between the rotating member and the fixed member, resulting in wear, size and shape changes, affecting the mating accuracy and the stability and reliability of the overall structure.

Method used

A rotating shaft assembly is designed in which the shaft body is detachably inserted into the connecting hole of the rotating member, and through the synchronous rotation of the connecting shaft and the body, relative movement between the shaft body and the rotating member is avoided, thereby reducing friction.

Benefits of technology

By reducing friction, the gap between the shaft body and the mating member is avoided, the rotational connection stability between the fixing member and the rotating member is improved, and the reliability and durability of the overall structure are ensured.

✦ Generated by Eureka AI based on patent content.

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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 and a fixed piece. A connecting hole is formed in the rotating piece; the fixing piece comprises a body and a connecting shaft detachably connected to the body, the connecting shaft comprises a connecting base and a shaft body which are connected, and the shaft body is detachably inserted into the connecting hole so that the fixing piece and the rotating piece can be rotationally connected. According to the rotating shaft assembly provided in the scheme, the connecting shaft is connected to the body, so that the shaft body and the body are synchronous, the rotating piece rotates relative to the shaft body so as to rotate relative to the body of the fixed piece, relative movement between the shaft body and the rotating piece is avoided, and after the shaft body is assembled, the shaft body only rotates relative to the rotating piece; the stability of rotary connection between the fixed part and the rotary part is remarkably improved, and the reliability and durability of the whole structure are ensured.
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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 field of mechanical engineering, the rotational connection between the rotating part and the fixed part is a key mechanical structure. The rotational connection usually relies on a rotating shaft, which is designed to run through the rotating part and the fixed part to achieve relative rotation between the two. However, it is precisely this design that makes it inevitable that the rotating shaft will produce relative motion and friction on the contact surface with the rotating part and the fixed part.

[0003] Friction not only causes wear on the material of the shaft surface, but also may cause the size and shape of the shaft to change over time, thus affecting the accuracy of its fit with rotating and fixed parts. Under the influence of friction for a long time, the structural strength and mechanical properties of the shaft may gradually decrease, thus affecting the stability and reliability of the entire rotating system. Summary of the invention

[0004] Based on this, it is necessary to provide a rotating shaft assembly, a rotating screen, a door body and a dishwasher to address the problem of large friction force on the rotating shaft in the rotating shaft assembly.

[0005] A rotating shaft assembly, comprising a rotating member and a fixed member. The rotating member is provided with a connecting hole; the fixed member comprises a body and a connecting shaft detachably connected to the body, the connecting shaft comprises a connecting seat and a shaft body connected to each other, the shaft body is detachably inserted into the connecting hole to rotatably connect the fixed member and the rotating member.

[0006] In one embodiment, the rotating member includes a mounting surface and a connecting block protruding from the mounting surface, and the connecting hole is provided in the connecting block.

[0007] In one embodiment, the mounting surface is recessed with a guide groove, which is coaxially arranged with the connecting hole and located on one side of the connecting block, and when the shaft body is inserted into the connecting hole, the connecting shaft is spaced apart from the groove wall of the guide groove.

[0008] In one embodiment, the connecting shaft includes a connecting section for connecting the connecting seat and the shaft body, the connecting section is connected to one end of the shaft body and the end surface facing away from the connecting seat is a mating surface, the mating surface is an arc surface coaxially arranged with the shaft body, and the mating surface is adapted to the groove wall of the guide groove.

[0009] In one embodiment, the mating surface is an arcuate surface coaxial with the shaft body and having a diameter greater than the diameter of the shaft body, the guide groove is coaxial with the connecting hole and has a diameter greater than the hole diameter of the connecting hole, and the diameter difference between the guide groove and the connecting hole is greater than the diameter difference between the mating surface and the shaft body.

[0010] In one embodiment, the connecting section includes a friction surface perpendicular to the axial direction of the shaft body, and the connecting block includes a contact surface for opening the connecting hole and perpendicular to the axial direction of the connecting hole. When the fixed part and the rotating part are rotationally connected, the friction surface abuts against the contact surface.

[0011] In one embodiment, the connecting section includes a section body and a protrusion protruding from the section body, the protrusion protrudes from the section body in the axial direction of the shaft body, and the shaft body is connected to the protrusion, and the end surface of the protrusion used to connect to the shaft body is the friction surface.

[0012] In one embodiment, the connecting section includes a section body and a friction plate connected to the section body and sleeved on the outer periphery of the shaft body, the friction plate is made of self-lubricating material, the friction plate abuts against the contact surface, and the friction surface is the surface where the friction plate abuts against the contact surface.

[0013] In one embodiment, the plane where the connecting seat is located is arranged parallel to the axial direction of the shaft body.

[0014] In one embodiment, the main body is provided with a positioning column, the connecting seat is provided with a positioning hole corresponding to the positioning column, the positioning column and the positioning hole are clearance fit or transition fit; and / or, the connecting seat is provided with a mounting hole for connecting to the main body, the mounting hole is a waist-shaped hole, and the length direction of the mounting hole is in the same direction as the axial direction of the shaft body.

[0015] A rotating screen comprises a screen assembly and a rotating shaft assembly as described in any of the above embodiments, wherein the screen assembly is connected to the rotating member and rotates synchronously with the rotating member.

[0016] 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.

[0017] A dishwasher comprises the door body as described in the above embodiment.

[0018] The shaft assembly provided in the above scheme is connected to the main body through a connecting shaft, so that the shaft body and the main body are synchronized, and the rotating part rotates relative to the shaft body and thus rotates relative to the main body of the fixed part, avoiding the relative movement between the shaft body and the rotating part, so that when the shaft body is assembled, there is only relative rotation between the shaft body and the rotating part, avoiding friction damage caused by relative rotation between the shaft body and the main body of the fixed part, and between the shaft body and the rotating part. This damage will cause the gap between the shaft body and the mating part to increase, thereby affecting the stability of the connection. Through the above design, the stability of the rotational connection between the fixed part and the rotating part is significantly improved, ensuring the reliability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the door body in one embodiment of the present application.

[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the rotating screen.

[0021] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the central shaft assembly.

[0022] Figure 4 for Figure 3 Schematic diagram of the partial exploded structure of the fixings.

[0023] Figure 5 for Figure 3 A partial schematic cross-sectional view of the central shaft assembly.

[0024] Figure 6 for Figure 3 Schematic diagram of the structure of the connecting shaft.

[0025] Description of reference numerals:

[0026] 10. Door body; 10a. Rotating screen; 100. Rotating shaft assembly; 110. Rotating member; 111. Connecting hole; 112. Mounting surface; 113. Connecting block; 1131. Contact surface; 114. Guide groove; 120. Fixing member; 121. Main body; 1211. Positioning column; 1212. Through hole; 1213. Limiting groove; 122. Connecting shaft; 1221. Connecting seat; 12211. Positioning hole; 12212. Mounting hole; 1222. Shaft body; 1223. Connecting section; 12231. Section body; 12232. Bump; 12233. Friction plate; 1224. Matching surface; 1225. Friction surface; 200. Driving assembly; 10b. Outer door; 10c. Inner door; 10d. 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 10a as described in the following embodiment, and also includes an inner door 10c, an outer door 10b and a frame 10d sandwiched between the inner door 10c and the outer door 10b, wherein the following fixing member 120 in the rotating screen 10a is connected to the frame 10d, and when the following screen assembly in the rotating screen 10a rotates relative to the frame 10d along with the following rotating member 110, the screen assembly Figure 1 The portion shown protrudes from the outer door 10b.

[0036] Combination Figure 2 As shown, Figure 2The structure diagram of the rotating screen 10a in one embodiment of the present application is shown. In one embodiment of the present application, a rotating screen 10a 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 10a 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 10a includes a screen assembly (not shown) and a shaft assembly 100 as in any of the embodiments described below, and also includes a driving assembly 200. The screen assembly is connected to the rotating member 110 described below and rotates synchronously with the rotating member 110. The driving assembly 200 is used to drive the rotating member 110 to rotate relative to the fixed member 120 described below, thereby realizing the rotation of the screen assembly to open and close.

[0038] Combination Figure 2 and Figure 3 , Figure 3 A schematic diagram of an exploded view of a rotating shaft assembly 100 in an embodiment of the present application is shown. In an embodiment of the present application, a rotating shaft assembly 100 is provided, which can be applied to the above-mentioned rotating screen 10a, and can also be applied to other components connected in rotation, such as a door connected in rotation.

[0039] like Figure 2 and Figure 3 As shown, the shaft assembly 100 includes a rotating member 110 and a fixing member 120. The rotating member 110 is provided with a connecting hole 111, and the fixing member 120 includes a body 121 and a connecting shaft 122 detachably connected to the body 121. Figure 4 As shown, the connecting shaft 122 includes a connecting seat 1221 and a shaft body 1222 connected to each other. The shaft body 1222 can be detachably inserted into the connecting hole 111 to connect the fixed part 120 and the rotating part 110 in rotation. At this time, the shaft body 1222 is synchronized with the fixed part 120, and the rotating part 110 rotates relative to the shaft body 1222 and thus rotates relative to the body 121 of the fixed part 120, avoiding the relative movement between the shaft body 1222 and the rotating part 110, so that when the shaft body 1222 is assembled, the shaft body 1222 only rotates relative to the rotating part 110, avoiding the friction damage caused by the relative rotation between the shaft body 1222 and the body 121 of the fixed part 120, and the shaft body 1222 and the rotating part 110. This damage will cause the gap between the shaft body 1222 and the mating part to increase, thereby affecting the stability of the connection. Through the above design, the stability of the rotation connection between the fixed part 120 and the rotating part 110 is significantly improved, ensuring the reliability and durability of the overall structure.

[0040] like Figure 3As shown, in this embodiment, the fixed member 120 includes two symmetrical and spaced connection shafts 122, and correspondingly, the rotating member 110 includes two connection holes 111 corresponding to the connection shafts 122, so that the rotation connection between the fixed member 120 and the rotating member 110 is more stable. In other embodiments, the number of the connection shafts 122 can also be one or more than two.

[0041] like Figure 3 and Figure 5 As shown, in one embodiment, the rotating member 110 includes a mounting surface 112 and a connecting block 113 protruding from the mounting surface 112 , and the connecting hole 111 is opened in the connecting block 113 .

[0042] like Figure 3 and Figure 5 As shown, in one embodiment, the mounting surface 112 is concavely provided with a guide groove 114, which is coaxially arranged with the connecting hole 111 and located on one side of the connecting block 113, so as to guide the assembly of the connecting shaft 122 through the guide groove 114, and the connecting shaft 122 is partially placed in the guide groove 114 and the connecting shaft 122 is moved along the axial direction of the connecting shaft 122 to assemble the shaft body 1222 to the connecting hole 111. When the shaft body 1222 is inserted into the connecting hole 111, the connecting shaft 122 is spaced apart from the groove wall of the guide groove 114, so as to avoid friction between the connecting shaft 122 and the guide groove 114 when the rotating member 110 rotates relative to the shaft body 1222.

[0043] like Figure 4 and Figure 6 As shown, in one embodiment, the connecting shaft 122 includes a connecting section 1223 for connecting the connecting seat 1221 and the shaft body 1222, and the connecting section 1223 is connected to one end of the shaft body 1222 and the end surface away from the connecting seat 1221 is a mating surface 1224. Figure 6 As shown, the mating surface 1224 is an arcuate surface coaxially arranged with the shaft body 1222, and the mating surface 1224 is adapted to the groove wall of the guide groove 114, so that when the end of the connecting section 1223 away from the connecting seat 1221 is inserted into the guide groove 114, the mating surface 1224 and the groove wall of the guide groove 114 cooperate to limit the connecting shaft 122. At this time, the connecting shaft 122 can be moved along the axial direction of the connecting shaft 122 to assemble the shaft body 1222 to the connecting hole 111. In this embodiment, the connecting shaft 122 is an integrated structure. In other embodiments, the connecting shaft 122 can also be a structure fixedly connected to each other.

[0044] like Figure 6 As shown, in one embodiment, the mating surface 1224 is an arcuate surface coaxial with the shaft body 1222 and having a diameter greater than the diameter of the shaft body 1222, and as shown Figure 5As shown, the guide groove 114 is coaxial with the connection hole 111 and has a diameter greater than the aperture of the connection hole 111, and the diameter difference between the guide groove 114 and the connection hole 111 is greater than the diameter difference between the matching surface 1224 and the shaft body 1222, so that when the shaft body 1222 is inserted into the connection hole 111, the matching surface 1224 is spaced apart from the groove wall of the guide groove 114. In other embodiments, the matching surface 1224 may also be equal to the diameter of the shaft body 1222, in which case the diameter of the guide groove 114 is slightly greater than the aperture of the connection hole 111, so that when the shaft body 1222 is inserted into the connection hole 111, the matching surface 1224 is spaced apart from the groove wall of the guide groove 114.

[0045] like Figures 4 to 6 As shown, in one embodiment, the connecting section 1223 includes a friction surface 1225 perpendicular to the axial direction of the shaft body 1222, such as Figure 3 and Figure 5 As shown, the connection block 113 includes a contact surface 1131 for opening the connection hole 111 and perpendicular to the axial direction of the connection hole 111. Figure 5 As shown, when the fixed member 120 and the rotating member 110 are rotationally connected, the friction surface 1225 abuts against the contact surface 1131 , and when the rotating member 110 rotates, the rotating member 110 rubs against the friction surface 1225 .

[0046] like Figures 4 to 6 As shown, in one embodiment, the connecting section 1223 includes a section body 12231 and a protrusion 12232 protruding from the section body 12231. Figure 6 As shown, the protrusion 12232 protrudes from the segment 12231 in the axial direction of the shaft body 1222, and the shaft body 1222 is connected to the protrusion 12232. The end surface of the protrusion 12232 used to connect the shaft body 1222 is the friction surface 1225. When the rotating member 110 rotates, the rotating member 110 rubs against the friction surface 1225 instead of rubbing against the entire plane provided with the protrusion 12232, thereby reducing the friction force of the rotating member 110 when it rotates.

[0047] like Figures 4 to 6As shown, in one embodiment, the connecting section 1223 includes a section body 12231 and a friction plate 12233 connected to the section body 12231 and sleeved on the outer periphery of the shaft body 1222. The friction plate 12233 is made of self-lubricating material, wherein the self-lubricating material refers to a material that can reduce friction and wear without additional lubricants. Such materials usually have a low friction coefficient and high wear resistance, can work in a dry or polluted environment, reduce maintenance costs and improve equipment reliability, such as polytetrafluoroethylene (PTFE), nylon, polyimide, polyoxymethylene (POM), etc. The friction plate 12233 abuts against the contact surface 1131, and the friction surface 1225 is the surface where the friction plate 12233 abuts against the contact surface 1131, so as to reduce the relative friction between the rotating member 110 and the section body 12231 and reduce energy loss.

[0048] like Figure 5 and Figure 6 As shown, in one embodiment, the plane where the connecting seat 1221 is located is arranged parallel to the axial direction of the shaft body 1222, so that when the shaft body 1222 and the rotating member 110 rotate relative to each other, the surface connecting the connecting seat 1221 and the main body 121 can evenly offset the torsional force exerted on the shaft body 1222, thereby avoiding the torsional force being concentrated at other positions of the connecting shaft 122 and causing the connecting shaft 122 to break.

[0049] like Figure 3 and Figure 4 As shown, in one embodiment, the body 121 is provided with a positioning column 1211, and the connecting seat 1221 is provided with a positioning hole 12211 corresponding to the positioning column 1211. The positioning column 1211 and the positioning hole 12211 are clearance-fitted or transition-fitted, so that the positioning column 1211 penetrates the positioning hole 12211 to realize the pre-positioning of the connecting seat 1221.

[0050] like Figure 3 As shown, for the convenience of installation, in an embodiment where the fixing member 120 includes two symmetrical and spaced-apart connecting shafts 122, the main body 121 is provided with a positioning column 1211 aligned with one of the two connecting shafts 122, and a limiting groove 1213 is recessed at the relative position between the main body 121 and the other connecting shaft 122, and the connecting shaft 122 can slide relatively in the limiting groove 1213 to adapt to fixing members 120 of different sizes, thereby avoiding an uncertain gap between the two connecting shafts 122 and the fixing member 120 due to different sizes of the fixing member 120, and the connecting seat 1221 moves relative to the fixing member 120 in the sliding groove to compensate for the gap between the connecting shaft 122 and the fixing member 120, thereby avoiding different friction resistances due to different gaps, and making the connection between the fixing member 120 and the connecting shaft 122 more stable.

[0051] like Figure 4As shown, in one embodiment, the connecting seat 1221 is provided with a mounting hole 12212 for connecting to the main body 121, the mounting hole 12212 is a waist-shaped hole, and the length direction of the mounting hole 12212 is in the same direction as the axial direction of the shaft body 1222, so that the positioning column 1211 provided on the main body 121 and the hole position for aligning the mounting hole 12212 have a certain manufacturing error, and can also be adapted to fixing parts 120 of different sizes, leaving a certain assembly margin.

[0052] like Figure 4 As shown, in one embodiment, the connecting seat 1221 is further provided with a through hole 1212. The connecting seat 1221 is connected to the end surface of the main body 121 away from the rotating member 110, and the connecting section 1223 passes through the through hole 1212 so that the shaft body 1222 is located on the side of the main body 121 facing the rotating member 110 to connect to the connecting hole 111, so as to facilitate the installation and fixing of the connecting shaft 122 from the side of the main body 121 away from the rotating member 110, thereby improving the installation efficiency.

[0053] 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.

[0054] 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 part is provided with a connecting hole; The fixing member comprises a body and a connecting shaft detachably connected to the body, wherein the connecting shaft comprises a connecting seat and a shaft body connected to each other, and the shaft body is detachably inserted into the connecting hole to rotatably connect the fixing member and the rotating member.

2. The shaft assembly according to claim 1, characterized in that: The rotating member comprises a mounting surface and a connecting block protruding from the mounting surface, and the connecting hole is formed in the connecting block.

3. The shaft assembly according to claim 2, characterized in that: The mounting surface is concavely provided with a guide groove, which is coaxially arranged with the connecting hole and located on one side of the connecting block. When the shaft body is inserted into the connecting hole, the connecting shaft is spaced apart from the groove wall of the guide groove.

4. The shaft assembly according to claim 3, characterized in that: The connecting shaft includes a connecting section for connecting the connecting seat and the shaft body, the connecting section is connected to one end of the shaft body and the end face facing away from the connecting seat is a mating surface, the mating surface is an arc surface coaxially arranged with the shaft body, and the mating surface is adapted to the groove wall of the guide groove.

5. The shaft assembly according to claim 4, characterized in that: The mating surface is an arcuate surface coaxial with the shaft body and having a diameter greater than the diameter of the shaft body, the guide groove is coaxial with the connecting hole and has a diameter greater than the hole diameter of the connecting hole, and the diameter difference between the guide groove and the connecting hole is greater than the diameter difference between the mating surface and the shaft body.

6. The shaft assembly according to claim 4, characterized in that: The connecting section includes a friction surface perpendicular to the axial direction of the shaft body, and the connecting block includes a contact surface for opening the connecting hole and perpendicular to the axial direction of the connecting hole. When the fixed part and the rotating part are rotationally connected, the friction surface abuts against the contact surface.

7. The shaft assembly according to claim 6, characterized in that: The connecting section includes a section body and a convex block protruding from the section body, the convex block protruding from the section body in the axial direction of the shaft body, and the shaft body is connected to the convex block, and the end surface of the convex block used for connecting to the shaft body is the friction surface.

8. The shaft assembly according to claim 6, characterized in that: The connecting section includes a section body and a friction plate connected to the section body and sleeved on the outer periphery of the shaft body. The friction plate is made of self-lubricating material. The friction plate abuts against the contact surface, and the friction surface is the surface where the friction plate abuts against the contact surface.

9. The shaft assembly according to claim 1 or 4, characterized in that: The plane where the connecting seat is located is arranged parallel to the axial direction of the shaft body.

10. The shaft assembly according to claim 9, characterized in that: The main body is provided with a locating column, the connecting seat is provided with a locating hole corresponding to the locating column, and the locating column and the locating hole are clearance fit or transition fit; And / or, the connecting seat is provided with a mounting hole for connecting to the main body, the mounting hole is a waist-shaped hole, and the length direction of the mounting hole is in the same direction as the axial direction of the shaft body.

11. 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 10, wherein the screen assembly is connected to the rotating member and rotates synchronously with the rotating member.

12. A door body, characterized in that: It includes a rotating screen as described in claim 11, 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 as the rotating member rotates, the screen assembly partially protrudes from the outer door.

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