Turntable mechanism and household appliance

Abstract

The utility model relates to a rotary table mechanism and a household appliance. The rotary table mechanism comprises a rotary table support, a limiting piece and a rotary table. The limiting piece is connected to the turntable bracket; a local structure of the limiting piece and the turntable bracket are oppositely arranged at an interval to define a turntable space; the turntable is arranged in the turntable space, the turntable bracket and the limiting piece jointly clamp the turntable, and the turntable bracket can rotate around a rotating axis relative to the turntable; the turntable comprises a body, a first roller and a second roller; the first roller is arranged on one side, facing the turntable bracket, of the body and is in contact with the turntable bracket; the second roller is arranged on the side, away from the first roller, of the body and located between the limiting piece and the body, and the second roller makes contact with the limiting piece. According to the rotary table mechanism, the limiting piece and the rotary table support abut against the two opposite sides of the rotary table to jointly clamp the rotary table, and the stability of the matching relation between the rotary table support and the rotary table can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a turntable mechanism and a household appliance. Background Art

[0002] A tower fan is a type of fan. It is slender and upright, so it is called a tower fan. The airflow generator of a tower fan is a crossflow impeller to distinguish it from a traditional rotary fan. A tower fan usually includes a base and a shell, and the shell is rotatably mounted on the shell. An air outlet is provided on the shell, and the shell and the air outlet can rotate relative to the base to achieve a "shaking head" effect, thereby expanding the conduction range of the airflow.

[0003] The shell and base in a traditional tower fan are generally rotatably connected by the cooperation of a rotating shaft and a rotating shaft hole. The cooperation between the rotating shaft and the rotating shaft hole is relatively simple, which makes the stability of the cooperation relationship between the shell and the base relatively weak. When the shell and the air outlet are rotating, the shell is easily deflected due to the flow of airflow or external push. Utility Model Content

[0004] The present application provides a turntable mechanism and a household appliance.

[0005] In the first aspect, the present application provides a turntable mechanism, which includes a turntable bracket, a limit member and a turntable; the limit member is connected to the turntable bracket, and the local structure of the limit member is arranged relative to the turntable bracket to define a turntable space; the turntable is arranged in the turntable space, the turntable bracket and the limit member jointly clamp the turntable, and the turntable bracket can rotate around a rotation axis relative to the turntable; the turntable includes a main body, a first roller and a second roller, the first roller is arranged on a side of the main body facing the turntable bracket and in contact with the turntable bracket; the second roller is arranged on a side of the main body away from the first roller, and is located between the limit member and the main body, and the second roller is in contact with the limit member.

[0006] In some optional embodiments, the turntable bracket includes a bracket and a friction member connected to each other, the friction member is located between the bracket and the turntable, and the friction member rolls with the first roller so that the friction member can rotate around the rotation axis relative to the turntable.

[0007] Among them, in some optional embodiments, the friction part includes a friction portion and a first matching portion connected to each other, the friction portion is located between the bracket and the turntable and rollingly cooperates with the first roller, and the first matching portion protrudes toward the bracket relative to the friction portion; the bracket is provided with a second matching portion, and the second matching portion cooperates with the first matching portion to connect the friction part to the bracket.

[0008] In some optional embodiments, a friction curved surface is provided on the side of the friction member facing the first roller, the friction curved surface is arranged around the rotation axis, the friction curved surface is a concave surface and abuts against the first roller.

[0009] Among them, in some optional embodiments, the bracket includes a transmission part and a rotating shaft connected to each other, the friction part is connected to the transmission part and is located between the transmission part and the turntable, the rotating shaft protrudes relative to the transmission part, and the rotating shaft defines a rotation axis; the turntable is provided with a rotating shaft through hole, the rotating shaft can be rotatably inserted into the rotating shaft through hole, and the turntable can rotate around the rotating shaft relative to the transmission part.

[0010] Among them, in some optional embodiments, the limiting member includes a limiting portion and a plurality of connecting portions connected to the limiting portion, the limiting portion and the turntable bracket are arranged at intervals to jointly define the turntable space, the plurality of connecting portions are arranged at intervals in sequence on the outer periphery of the limiting portion, and the connecting portion is connected to the turntable bracket.

[0011] In some optional embodiments, an oil storage tank is provided on a side of the limiting portion facing the second roller, the oil storage tank is arranged around the rotation axis, and at least a part of the structure of the second roller is placed in the oil storage tank.

[0012] In some optional embodiments, the limiting member further includes a reinforcing portion, which is circumferentially connected to the outer periphery of the limiting portion, and the reinforcing portion extends toward the turntable relative to the limiting portion.

[0013] Among them, in some optional embodiments, the first roller includes a plurality of first balls, and the plurality of first balls are arranged in sequence and at intervals on the main body around the rotation axis; a plurality of first ball grooves are provided on the side of the main body facing the turntable bracket, and the plurality of first ball grooves are arranged one-to-one correspondingly to the plurality of first balls, and each first ball can be rolled and embedded in a corresponding first ball groove; the turntable also includes a first limiting portion, the first limiting portion is arranged at the notch of the first ball groove, and the first limiting portion cooperates with the first ball to limit the first ball in the first ball groove; or the first roller includes a plurality of first roller needles, and the plurality of first roller needles are arranged in sequence and at intervals on the main body around the rotation axis.

[0014] Among them, in some optional embodiments, the second roller includes a plurality of second balls, and the plurality of second balls are arranged in sequence and at intervals on the main body around the rotation axis; a plurality of second ball grooves are provided on the side of the main body facing the limiting member, and the plurality of second ball grooves are arranged one-to-one correspondingly to the plurality of second balls, and each second ball can be rolled and embedded in a corresponding second ball groove; the turntable also includes a second limiting portion, the second limiting portion is arranged at the notch of the second ball groove, and the second limiting portion cooperates with the second ball to limit the second ball in the second ball groove; or the second roller includes a plurality of second roller needles, and the plurality of second roller needles are arranged in sequence and at intervals on the main body around the rotation axis.

[0015] In a second aspect, the present application provides a household appliance, comprising a first structure, a second structure and the turntable mechanism mentioned above, wherein a turntable bracket of the turntable mechanism is connected to the first structure, and the turntable is connected to the second structure, so that the first structure is rotatably connected to the second structure.

[0016] Among them, in some optional embodiments, the first structure includes a shell, the shell has a accommodating space, and the shell is provided with an air inlet and an air outlet connected to the accommodating space; the household appliance also includes an airflow generator, and the airflow generator is arranged in the accommodating space; the second structure includes a base, the turntable is installed on the base, and the turntable bracket is connected to the shell.

[0017] The present application provides a turntable mechanism, which includes a turntable bracket, a stopper and a turntable. The stopper is connected to the turntable bracket, and the local structure of the stopper is arranged at a relative interval with the turntable bracket to define a turntable space; the turntable space is used to accommodate the turntable, and the turntable bracket and the stopper are respectively located on opposite sides of the turntable to clamp the turntable together, and the turntable bracket can rotate relative to the turntable around a rotation axis with the turntable as a reference. The turntable includes a body, a first roller and a second roller, the first roller is arranged on the side of the body facing the turntable bracket and contacts the turntable bracket, and the turntable bracket and the first roller are rollingly matched to realize the turntable bracket and the turntable can be rotatably matched; the second roller is arranged on the side of the body away from the first roller and is located between the stopper and the body, the second roller contacts the stopper, and the stopper and the second roller are rollingly matched to realize the stopper and the turntable can be rotatably matched.

[0018] In summary, the turntable mechanism in the embodiment of the present application is respectively abutted against the opposite sides of the turntable by the limiter and the turntable bracket to jointly clamp the turntable, which can improve the stability of the matching relationship between the turntable bracket, the limiter and the turntable, and can prevent the turntable bracket from deflecting in the direction of the rotation axis, so that the forces of the various parts of the turntable bracket are balanced, and the local structure is prevented from being subjected to excessive concentration of forces and severe wear or deformation. The turntable mechanism in this embodiment can be used to connect between the shell of the tower fan and the base of the tower fan. The limiter and the turntable bracket jointly clamp the turntable so that the turntable bracket can overcome the force on the shell caused by the airflow and the external thrust on the shell, thereby preventing the shell from deflecting or tipping relative to the base in the direction of the rotation axis, and ensuring the stability of the overall structure of the tower fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structure of a tower fan in a household appliance provided in an embodiment of the present application.

[0021] Figure 2 yes Figure 1 Exploded view of a tower fan in a household appliance shown.

[0022] Figure 3 yes Figure 2 The schematic diagram of the structure of the turntable mechanism of the household appliance shown.

[0023] Figure 4 yes Figure 3 A schematic structural diagram of the turntable support and the limiting member of the turntable mechanism defining the turntable space.

[0024] Figure 5 yes Figure 3 Exploded view of the turntable mechanism shown.

[0025] Figure 6 yes Figure 5 Schematic diagram of the structure of the friction parts of the turntable mechanism shown.

[0026] Figure 7 yes Figure 5 Schematic diagram of the internal structure of the turntable bracket of the turntable mechanism shown.

[0027] Figure 8 yes Figure 5 Exploded view of the turntable of the turntable mechanism shown.

[0028] Fig. 9 yes Figure 5 A schematic structural diagram of the limiting component of the turntable mechanism shown.

[0029] Fig.10 yes Figure 8 A partial enlarged view of point A is shown.

[0030] Figure numbers: 1000, household appliance, 900, first structure, 910, shell, 911, accommodating space, 912, air inlet, 913, air outlet, 800, second structure, 810, base, 100, turntable mechanism, 10, turntable bracket, 11, bracket, 111, transmission part, 1111, second matching part, 1112, inner cavity, 112, rotating shaft, 12, friction member, 121, friction part, 1211, friction Curved surface, 122, first matching part, 90, turntable space, 20, turntable, 21, first roller, 211, first ball, 22, second roller, 221, second ball, 23, main body, 231, first ball groove, 232, shaft through hole, 24, bearing, 25, first shrinkage part, 30, limit part, 31, limit part, 311, avoidance through hole, 312, oil storage tank, 32, connecting part, 33, reinforcement part, 40, fixing part. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0032] See also Figure 1 and Figure 2 The embodiment of the present application provides a household appliance 1000 and a turntable mechanism 100 applied to the household appliance 1000. The household appliance 1000 in this embodiment includes a first structure 900 and a second structure 800, and the turntable mechanism 100 is connected between the first structure 900 and the second structure 800, so that the first structure 900 is rotatably connected to the second structure 800, and the first structure 900 can rotate relative to the second structure 800 based on the turntable mechanism 100.

[0033] This embodiment does not limit the type of household appliance 1000. As an example, household appliance 1000 may be a tower fan, which includes a fixed structure and a rotating structure. The fixed structure is arranged on the ground of the application environment, and the rotating structure is rotatably mounted on the fixed structure through a turntable mechanism 100, so that the rotating structure can rotate relative to the fixed structure. As another example, household appliance 1000 may be a vertical blade fan, which includes a support rod and a blade assembly. The support rod is supported on the ground of the application environment, and the blade assembly is connected to a side of the support rod away from the ground through a turntable mechanism 100, so that the blade assembly is rotatably connected to the support rod, and the blade assembly can rotate relative to the support rod to achieve a shaking effect.

[0034] See also Figure 1 and Figure 2In this embodiment, the household appliance 1000 is a tower fan. In this embodiment, the first structure 900 may include a shell 910, which is the main structure of the tower fan. The shell 910 is hollow inside to define a housing space 911. The tower fan may also include an airflow generator, i.e., a wind wheel (not shown in the figure), which is arranged in the housing space 911. The shell 910 is provided with an air inlet 912 and an air outlet 913 connected to the housing space 911. The airflow generator can draw external air into the housing space 911 through the air inlet 912, and then export it through the air outlet 913 after acceleration to form a fast-flowing airflow. In this embodiment, the air inlet 912 and the air outlet 913 are roughly arranged on opposite sides of the outer peripheral side of the shell 910, so as to facilitate the suction of air and the export of fast airflow. The flow path of the airflow is also relatively simple, the flow distance is short, and the noise is low. In other embodiments, the air outlet 913 may be disposed on the outer peripheral side of the housing 910 , and the air inlet 912 may be disposed on a side of the housing 910 facing away from the ground of the application environment.

[0035] See also Figure 1 and Figure 2 In this embodiment, the second structure 800 may include a base 810, and the base 810 is arranged on the ground of the application environment where the tower fan is located. The housing 910 is rotatably connected to the base 810 through the turntable mechanism 100 to achieve the effect of shaking the head, so that the air outlet 913 can swing to expand the conduction range of the airflow, for example, it can conduct the airflow to two users in different positions, and also avoid the air outlet 913 from continuously facing one user, and avoid the airflow from continuously conducting toward one user. In some embodiments, the size of the base 810 in a direction roughly parallel to the ground can be set larger to improve the stability of the base 810 and the tower fan. In some embodiments, the household appliance 1000 as a tower fan may also include a counterweight, and the counterweight is arranged on the base 810 to improve the stability of the base 810 and the tower fan.

[0036] Next, the specific structure of the turntable mechanism 100 will be introduced, and the connection method and matching relationship between the specific structure of the turntable mechanism 100 and the base 810 and the shell 910 will be introduced.

[0037] See also Figure 3 , Figure 4 and Figure 5In this embodiment, the turntable mechanism 100 includes a turntable bracket 10 and a turntable 20. In this embodiment, the turntable 20 is installed on the base 810 of the tower fan, the turntable bracket 10 is connected to the shell 910 of the tower fan, the turntable bracket 10 and the turntable 20 are rotatably matched, and the turntable bracket 10 can rotate around the rotation axis L relative to the turntable 20 to achieve the effect of rotatably connecting the shell 910 to the base 810 to achieve a shaking head. In this embodiment, the turntable 20 includes a body 23 and a first roller 21, the first roller 21 is arranged on the side of the body 23 facing the turntable bracket 10, the first roller 21 and the body 23 are rollingly matched, the turntable bracket 10 abuts against the first roller 21 and rolls with the first roller 21, so that the turntable bracket 10 can rotate around the rotation axis L relative to the turntable 20.

[0038] See also Figure 3 , Figure 4 and Figure 5 In this embodiment, the turntable mechanism 100 further includes a stopper 30. The stopper 30 is connected to the turntable bracket 10. The local structure of the stopper 30 is spaced apart from the turntable bracket 10 and is located on the side of the turntable 20 away from the turntable bracket 10. The local structure of the stopper 30 and the turntable bracket 10 define a turntable space 90. The turntable 20 is located in the turntable space 90. With the turntable bracket 10 as a reference, the turntable 20 can rotate around the rotation axis L in the turntable space 90 relative to the turntable bracket 10. The stopper 30 is rotatably matched with the turntable 20. In the process of the turntable bracket 10 driving the stopper 30 to rotate relative to the turntable 20, the rotatable matching relationship between the stopper 30 and the turntable 20 can make the turntable bracket 10 drive the stopper 30 to rotate more smoothly. Specifically, the turntable 20 may further include a second roller 22, which is arranged on the side of the main body 23 away from the turntable bracket 10, that is, the second roller 22 is arranged on the side of the main body 23 facing the local structure of the limit member 30, the second roller 22 rolls with the main body 23, the limit member 30 abuts against the second roller 22 and rolls with the second roller 22 to achieve a rotatable connection between the limit member 30 and the turntable 20.

[0039] In summary, in this embodiment, the stopper 30 and the turntable bracket 10 are respectively abutted against the opposite sides of the turntable 20 to clamp the turntable 20 together, which can improve the stability of the matching relationship between the turntable bracket 10, the stopper 30 and the turntable 20. The stopper 30 and the turntable bracket 10 clamp the turntable 20 together so that the turntable bracket 10 can overcome the force of the airflow on the shell 910 (turntable bracket 10) and the external thrust on the shell 910 (turntable bracket 10), which can prevent the turntable bracket 10 from deflecting in the direction of the rotation axis L, so that the various parts of the turntable bracket 10 (and the turntable 20) are balanced, and the local structure is prevented from being subjected to excessive concentration of force and severe wear or deformation. Therefore, under the setting of this embodiment, the turntable mechanism 100 is connected between the shell 910 and the base 810, which can prevent the shell 910 from deflecting or tipping relative to the base 810 in the direction of the rotation axis L, and ensure the stability of the overall structure of the tower fan.

[0040] See also Figure 4 and Figure 5 In this embodiment, the stopper 30 is generally an annular structure, and the stopper 30 has an avoidance through hole 311, and the turntable 20 can be connected to the base 810 via the avoidance through hole 311. As an example, a part of the structure of the base 810 extends into the accommodating space 911 via the avoidance through hole 311 and is relatively fixedly connected to the turntable 20 to form an integral structure, and correspondingly, the integral structure formed by the turntable bracket 10 and the housing 910 can rotate relative to the base 810.

[0041] See also Figure 3 , Figure 4 and Figure 5 In this embodiment, the turntable bracket 10 includes a bracket 11 and a friction member 12 connected to each other. The bracket 11 is used to be connected to the housing 910, and the friction member 12 is located between the bracket 11 and the body 23. The friction member 12 is used to roll with the first roller 21 so that the friction member 12 and the bracket 11 can rotate relative to the body 23. Under the setting of this embodiment, the bracket 11 does not directly roll with the first roller 21, which can avoid structural wear of the bracket 11, and the friction member 12 can be replaced in time, thereby reducing the maintenance cost of the tower fan.

[0042] See also Figure 4 , Figure 5 and Figure 6In this embodiment, the friction member 12 may include a friction portion 121, which is the main structure of the friction member 12, and the friction portion 121 is connected to the bracket 11. The friction portion 121 is located between the bracket 11 and the turntable bracket 10, and the side of the friction portion 121 facing the turntable 20 rolls with the first roller 21 to achieve a rotatable connection between the turntable bracket 10 and the turntable 20. In this embodiment, a friction curved surface 1211 is provided on the side of the friction portion 121 facing the first roller 21, and the friction curved surface 1211 rolls with the first roller 21. The friction curved surface 1211 is a concave surface to increase the contact area between the friction curved surface 1211 and the first roller 21, and reduce the pressure of the first roller 21 on the friction curved surface 1211 to slow down the wear of the friction member 12. The friction curved surface 1211 is arranged around the rotation axis L so that the friction curved surface 1211 is continuous, so as to improve the smoothness of the friction curved surface 1211 and the first roller 21. In this embodiment, the friction member 12 may be made of a wear-resistant material, such as metal, hard rubber, etc., which can slow down the wear of the friction member 12 to further reduce the maintenance cost of the tower fan.

[0043] This embodiment does not limit the specific form of the friction part 121. As an example, the friction part 121 may be a disc-shaped structure, and the friction curved surface 1211 is arranged on the side of the disc-shaped friction part 121 facing the rotating disk 20. In this embodiment, the friction part 121 is an annular structure, and the friction curved surface 1211 is arranged on the side of the annular friction part 121 facing the rotating disk 20. The annular friction part 121 is relatively light in weight, which can reduce the pressure exerted by the first roller 21 on the friction part 121, and can greatly reduce the materials used in producing the friction member 12, which can effectively reduce the production cost of the friction part 121.

[0044] See also Figure 5 In this embodiment, the friction member 12 may further include a first matching portion 122, the first matching portion 122 and the friction portion 121 are connected to each other to form an integral structure, and the first matching portion 122 extends toward the bracket 11 relative to the friction portion 121, so that the first matching portion 122 can be matched and connected with the bracket 11 to connect the friction portion 121 to the bracket 11. In this embodiment, a plurality of first matching portions 122 may be provided, and the first matching portions 122 are sequentially arranged at intervals on the periphery of the friction portion 121. Correspondingly, a plurality of second matching portions 1111 are provided on the bracket 11, and the plurality of second matching portions 1111 are arranged one-to-one with the plurality of first matching portions 122, and each first matching portion 122 can be matched with a corresponding second matching portion 1111 to form a connection relationship, thereby connecting the friction portion 121 to the bracket 11.

[0045] See also Figure 5 and Figure 7In this embodiment, the bracket 11 includes a transmission part 111, and the transmission part 111 has an inner cavity 1112. The second matching part 1111 can be a matching through hole. A plurality of matching through holes are arranged on the side of the transmission part 111 facing the friction member 12, and the matching through hole is connected to the inner cavity 1112 of the transmission part 111. Correspondingly, the first matching part 122 in this embodiment is a buckle, which protrudes toward the bracket 11 relative to the annular friction part 121, and the buckle can extend into the inner cavity 1112 through a corresponding matching through hole and engage with the edge structure of the corresponding matching through hole. In some embodiments, the outer peripheral edge and the inner ring edge of the annular friction part 121 can be provided with the first matching part 122 to improve the stability of the connection relationship between the friction part 121 and the transmission part 111. In other embodiments, the first matching part 122 can extend to the outer peripheral surface of the transmission part 111 and be fixedly connected by a structure such as a screw or a pin. In some other embodiments, a protrusion structure may be provided on the side of the friction portion 121 facing the transmission portion 111 , and the protrusion structure may be passed through the transmission portion 111 and locked to the friction portion 121 by a screw or the like to fix the friction portion 121 and the transmission portion 111 .

[0046] See also Figure 5 , Figure 7 and Figure 8 In this embodiment, the bracket 11 further includes a rotating shaft 112. The rotating shaft 112 and the transmission part 111 are connected to each other to form an integral structure. The rotating shaft 112 defines the rotation axis L mentioned above. The rotating shaft 112 protrudes toward the body 23 of the turntable 20 relative to the transmission part 111. The body 23 is provided with a rotating shaft through hole 232, and the rotating shaft 112 is sequentially penetrated through the friction member 12 and the body 23. The rotating shaft 112 is penetrated through the rotating shaft through hole 232 and is rotatably connected to the rotating shaft through hole 232. With the transmission part 111 as a reference, the turntable 20 can rotate around the rotating shaft 112 relative to the transmission part 111. In this embodiment, the stability of the matching relationship between the turntable bracket 10 and the turntable 20 is further improved by the rotating shaft 112 and the rotating shaft through hole 232. In some embodiments, the turntable 20 further includes two bearings 24, which are respectively disposed at both ends of the shaft through hole 232, and each bearing 24 is sleeved on the outer periphery of the shaft 112 so that the shaft 112 and the turntable 20 form a rotatable matching relationship, avoiding direct contact between the shaft 112 and the turntable 20, and greatly reducing the degree of wear of the shaft 112 and the turntable 20. This embodiment does not limit the material of the bracket 11, which can be a light weight material, such as aluminum alloy, plastic and other materials, or a wear-resistant material such as hard rubber.

[0047] See also Figure 8 and Fig. 9In this embodiment, the limiting member 30 includes a limiting portion 31, and the limiting portion 31 is the main structure of the limiting member 30. As can be seen from the foregoing, the limiting member 30 in this embodiment is roughly annular in structure, so the limiting portion 31 is also roughly annular in structure. The limiting portion 31 and the bracket 11 of the turntable bracket 10 are respectively located on the two sides opposite to each other of the turntable 20, and the limiting portion 31 is connected to the bracket 11 to jointly clamp the turntable 20. The limiting portion 31 is located on the side of the body 23 of the turntable 20 away from the bracket 11, and the limiting portion 31 abuts against and rolls with the second roller 22. In this embodiment, an oil storage tank 312 is provided on the side of the limiting portion 31 facing the second roller 22, that is, the side of the limiting portion 31 away from the ground of the application environment, and the oil storage tank 312 is used to store lubricating oil. When the limiting portion 31 and the second roller 22 are in a matching state, the second roller 22 is arranged across two opposite groove walls of the oil storage groove 312, and at least part of the structure of the second roller 22 is placed in the oil storage groove 312 to absorb the lubricating oil in the oil storage groove 312, so that the rolling matching between the second roller 22 and the limiting portion 31 is smoother, and the rolling matching between the second roller 22 and the body 23 of the rotating disk 20 is smoother, so as to avoid the second roller 22 from getting stuck and reduce the wear of the second roller 22 on the body 23 of the rotating disk 20 and the limiting portion 31. The oil storage groove 312 is arranged around the rotation axis L, that is, the oil storage groove 312 is a continuous annular groove body, so that the matching state between the second roller 22 and the oil storage groove 312 is more stable.

[0048] See also Figure 5 and Fig. 9 The position-limiting member 30 in this embodiment further includes a connecting portion 32, and the number of the connecting portions 32 can be multiple, and the multiple connecting portions 32 are sequentially and spaced apart on the outer periphery of the position-limiting member 31. The position-limiting member 31 is used to be fixedly connected to the bracket 11 of the turntable bracket 10, so that the position-limiting member 31 is connected to the bracket 11. This embodiment does not limit the shape of the connecting portion 32 and the connection method of the connecting portion 32 and the bracket 11. As an example, the connecting portion 32 is a snap-fit ​​structure similar to the first matching portion 122, and the snap-fitting connecting portion 32 is snap-fitted with the transmission portion 111 of the bracket 11. In this embodiment, the connecting portion 32 is a convex block structure, and the convex block structure protrudes relative to the position-limiting member 31 in a direction away from the rotation axis L. The turntable mechanism 100 further includes a fixing member 40, which is penetrated through the convex block structure and locked to the transmission portion 111 to connect the position-limiting member 30 to the bracket 11.

[0049] See also Fig. 9In this embodiment, the position-limiting member 30 may further include a reinforcing portion 33. The reinforcing portion 33 in this embodiment corresponds to the structure of the position-limiting portion 31 and is set as an annular structure. The reinforcing portion 33 and the position-limiting portion 31 are an integral structure. The reinforcing portion 33 may be set around the rotation axis L and connected to the outer periphery of the position-limiting portion 31. In this embodiment, the reinforcing portion 33 protrudes toward the turntable 20 relative to the position-limiting portion 31, which can increase the strength of the position-limiting portion 31, avoid excessive deformation of the position-limiting portion 31, and avoid deformation of the oil storage tank 312 leading to leakage of lubricating oil. In other embodiments, the reinforcing portion 33 may protrude toward the turntable 20 relative to the position-limiting portion 31, and protrude away from the turntable 20 relative to the position-limiting portion 31, so as to further enhance the structural reinforcing effect of the reinforcing portion 33 on the position-limiting portion 31. In other embodiments, the reinforcing portion 33 may be a plurality of plate-like structures, and the plurality of plate-like reinforcing portions 33 are sequentially and spaced apart and connected to the outer periphery of the position-limiting portion 31.

[0050] In this embodiment, the type of the first roller 21 is not limited. As an example, the first roller 21 includes a plurality of first needle rollers. Correspondingly, a first needle roller annular groove is provided on the side of the body 23 of the turntable 20 facing the turntable bracket 10. The first needle roller annular groove is a continuous groove body arranged around the rotation axis L. A plurality of first needle rollers are rollably arranged in the first needle roller annular groove and rollably cooperate with the friction member 12 of the turntable bracket 10. As another example, the first roller 21 includes a plurality of first needle rollers. Correspondingly, a plurality of first needle roller grooves are provided on the side of the body 23 of the turntable 20 facing the turntable bracket 10. The plurality of first needle roller grooves correspond to the plurality of first needle rollers one by one, and a partial structure of each first needle roller is embedded in a corresponding first needle roller groove. As another example, the first roller 21 includes a plurality of first balls 211. Correspondingly, a first ball 211 annular groove is provided on the side of the main body 23 of the turntable 20 facing the turntable bracket 10. The first ball 211 annular groove is a continuous groove body arranged around the rotation axis L. The plurality of first balls 211 can be rolled in the first ball 211 annular groove and roll with the friction part 12 of the turntable bracket 10.

[0051] See also Figure 8 In this embodiment, the first roller 21 includes a plurality of first balls 211. Correspondingly, a plurality of first ball grooves 231 are provided on the side of the body 23 facing the turntable bracket 10. The plurality of first balls 211 are arranged one by one with the plurality of first ball grooves 231. Each first ball 211 is embedded in a corresponding first ball groove 231. Part of the structure of the first ball 211 can protrude from the surface of the side of the body 23 facing the turntable bracket 10 through the notch of the first ball groove 231, so that the plurality of first balls 211 can roll with the friction member 12. In this embodiment, the first balls 211 can be evenly arranged on the side of the body 23 facing the turntable bracket 10, so that the cooperation relationship between the rotating bracket 11 and the turntable bracket 10 is more balanced and stable.

[0052] See also Fig.10 In this embodiment, the turntable 20 also includes a first limiting portion 25, which is arranged at the groove of the first ball groove 231. The first limiting portion 25 cooperates with the first ball 211 to limit the first ball 211 in the first ball groove 231 to prevent the first ball 211 from falling off from the first ball groove 231.

[0053] The type of the second roller 22 is not limited in this embodiment. As an example, the second roller 22 includes a plurality of second needle rollers. Correspondingly, a second needle roller annular groove is provided on the side of the body 23 of the turntable 20 facing the limiter 30. The second needle roller annular groove is a continuous groove body arranged around the rotation axis L. A plurality of second needle rollers are rollably arranged in the second needle roller annular groove and rollably cooperate with the limiter 30. As another example, the second roller 22 includes a plurality of second needle rollers. Correspondingly, a plurality of second needle roller grooves are provided on the side of the body 23 of the turntable 20 facing the limiter 30. The plurality of second needle roller grooves correspond to the plurality of second needle rollers one by one, and a partial structure of each second needle roller is embedded in a corresponding second needle roller groove. As another example, the second roller 22 includes a plurality of second balls 221. Correspondingly, a second ball 221 annular groove is provided on the side of the main body 23 of the turntable 20 facing the limit member 30. The second ball 221 annular groove is a continuous groove body arranged around the rotation axis L. The plurality of second balls 221 can be rollably arranged in the second ball 221 annular groove and rollingly cooperate with the limit member 30.

[0054] See also Figure 8 In this embodiment, the second roller 22 includes a plurality of second balls 221. Correspondingly, a plurality of second ball grooves (not shown) are provided on one side of the body 23 facing the stopper 30. The plurality of second balls 221 are provided one-to-one with the plurality of second ball grooves. Each second ball 221 is embedded in a corresponding second ball groove. Part of the structure of the second ball 221 can protrude from the surface of the body 23 facing the stopper 30 through the notch of the second ball 221 groove, so that the plurality of second balls 221 can roll and cooperate with the stopper 30. In this embodiment, the second balls 221 can be evenly arranged on the side of the body 23 facing the stopper 30, so that the cooperation relationship between the rotating bracket 11 and the stopper 30 is more balanced and stable.

[0055] In this embodiment, the turntable 20 also includes a second limiting portion (not marked in the figure), which is arranged at the groove of the second ball groove. The second limiting portion cooperates with the second ball 221 to limit the second ball 221 in the second ball groove to prevent the second ball 221 from falling off from the second ball groove.

[0056] The embodiment of the present application provides a turntable mechanism 100. In this embodiment, the stopper 30 and the turntable bracket 10 are respectively abutted on the opposite sides of the turntable 20 to jointly clamp the turntable 20, which can improve the stability of the matching relationship between the turntable bracket 10, the stopper 30 and the turntable 20, and can prevent the turntable bracket 10 from deflecting in the direction of the rotation axis L, so that the forces of the various parts of the turntable bracket 10 are balanced, and the local structure is prevented from being subjected to excessive concentration of forces and severe wear or deformation. The turntable mechanism 100 in this embodiment can be used to connect between the shell 910 of the tower fan and the base 810 of the tower fan. The stopper 30 and the turntable bracket 10 jointly clamp the turntable 20 so that the turntable bracket 10 can overcome the force brought by the airflow to the shell 910 and the external thrust on the shell 910, thereby preventing the shell 910 from deflecting or tipping relative to the base 810 in the direction of the rotation axis L, and ensuring the stability of the overall structure of the tower fan.

[0057] In the specification of this application, certain words are used to refer to specific components in the specification and claims. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of the components as the criterion for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to"; "substantially" means that those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0058] In the description of the present application, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", and "inside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present application. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0059] In this application, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be internal communication between two elements, or it can be only surface contact. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A turntable mechanism, characterized in that: The turntable mechanism comprises: Turntable bracket; A limiting member, the limiting member is connected to the turntable bracket, and a local structure of the limiting member is arranged relative to the turntable bracket and spaced apart to define a turntable space; and A turntable, the turntable is arranged in the turntable space, the turntable bracket and the limiter jointly clamp the turntable, and the turntable bracket can rotate around a rotation axis relative to the turntable; the turntable comprises a body, a first roller and a second roller, the first roller is arranged on a side of the body facing the turntable bracket and in contact with the turntable bracket; The second roller is arranged on a side of the body away from the first roller and is located between the limiting member and the body, and the second roller is in contact with the limiting member.

2. The turntable mechanism according to claim 1, characterized in that: The turntable bracket includes a bracket and a friction member connected to each other, wherein the friction member is located between the bracket and the turntable, and the friction member is rollingly matched with the first roller so that the friction member can rotate around the rotation axis relative to the turntable.

3. The turntable mechanism according to claim 2, characterized in that: The friction member includes a friction portion and a first matching portion connected to each other, the friction portion is located between the bracket and the turntable and rollingly matches with the first roller, and the first matching portion protrudes toward the bracket relative to the friction portion; the bracket is provided with a second matching portion, and the second matching portion matches with the first matching portion to connect the friction member to the bracket.

4. The turntable mechanism according to claim 2, characterized in that: A friction curved surface is provided on a side of the friction member facing the first roller. The friction curved surface is arranged around the rotation axis. The friction curved surface is a concave surface and abuts against the first roller.

5. The turntable mechanism according to claim 2, characterized in that: The bracket comprises a transmission part and a rotating shaft connected to each other, the friction member is connected to the transmission part and is located between the transmission part and the rotating disk, the rotating shaft protrudes relative to the transmission part, and the rotating shaft defines the rotation axis; The turntable is provided with a rotation shaft through hole, the rotation shaft is rotatably penetrated through the rotation shaft through hole, and the turntable can rotate around the rotation shaft relative to the transmission part.

6. The turntable mechanism according to claim 1, characterized in that: The limiting member includes a limiting portion and a plurality of connecting portions connected to the limiting portion. The limiting portion and the turntable bracket are arranged at intervals to jointly define the turntable space. The plurality of connecting portions are sequentially arranged at intervals on the outer periphery of the limiting portion, and the connecting portion is connected to the turntable bracket.

7. The turntable mechanism according to claim 6, characterized in that: An oil storage groove is provided on a side of the limiting portion facing the second roller. The oil storage groove is arranged around the rotation axis, and at least a part of the structure of the second roller is placed in the oil storage groove.

8. The turntable mechanism according to claim 6, characterized in that: The position-limiting member further includes a reinforcing portion, which is circumferentially connected to the outer periphery of the position-limiting portion, and the reinforcing portion extends toward the rotating disk relative to the position-limiting portion.

9. The turntable mechanism according to any one of claims 1 to 8, characterized in that: The first roller includes a plurality of first balls, which are arranged on the body at intervals around the rotation axis in sequence; a plurality of first ball grooves are provided on the side of the body facing the turntable bracket, and the plurality of first ball grooves are arranged one-to-one with the plurality of first balls, and each first ball can be rotatably embedded in a corresponding first ball groove; the turntable also includes a first limiting portion, which is arranged at the notch of the first ball groove, and the first limiting portion cooperates with the first ball to limit the first ball in the first ball groove; or The first roller includes a plurality of first needle rollers, which are sequentially and spaced apart from each other on the body around the rotation axis.

10. The turntable mechanism according to any one of claims 1 to 8, characterized in that: The second roller includes a plurality of second balls, which are arranged on the body at intervals around the rotation axis in sequence; a plurality of second ball grooves are provided on the side of the body facing the limiting member, and the plurality of second ball grooves are arranged one-to-one with the plurality of second balls, and each second ball can be rolled and embedded in a corresponding second ball groove; the turntable also includes a second limiting portion, which is arranged at the notch of the second ball groove, and the second limiting portion cooperates with the second ball to limit the second ball in the second ball groove; or The second roller includes a plurality of second needle rollers, and the plurality of second needle rollers are sequentially and spaced apart from each other on the body around the rotation axis.

11. A household appliance, characterized in that: include: The first structure; The second structure; as well as The turntable mechanism according to any one of claims 1 to 10, wherein the turntable bracket of the turntable mechanism is connected to the first structure, and the turntable is connected to the second structure, so that the first structure is rotatably connected to the second structure.

12. The household appliance according to claim 11, characterized in that: The first structure includes a shell, the shell has a containing space, and the shell is provided with an air inlet and an air outlet connected to the containing space; the household appliance further includes an airflow generator, and the airflow generator is arranged in the containing space; The second structure includes a base, the turntable is installed on the base, and the turntable bracket is connected to the shell.

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