Search

CN-224232574-U - Knob structure of household electrical appliance

CN224232574UCN 224232574 UCN224232574 UCN 224232574UCN-224232574-U

Abstract

The utility model discloses a knob structure of a household appliance, which belongs to the technical field of household appliances and comprises a machine body, wherein a machine body opening, a machine body limiting part, an electric control and a knob are arranged on the machine body, the electric control and the knob are respectively positioned at the inner side and the outer side of the machine body opening and are in matched connection, the knob is provided with the knob limiting part, and the knob limiting part is in limiting fit with the machine body limiting part through the knob limiting part during rotation. This structure utilizes the spacing cooperation of knob spacing portion and organism spacing portion to restrict the motion scope and the position of knob, and then inject the rotation scope and the position of electric control, in order to ensure that electric control stops in the settlement position, still avoid the electric control to appear exceeding or deviating the condition in the rotation in-process simultaneously, reduce the operational error of electric control, can also improve the rotation precision of electric control, in addition, knob spacing portion, organism spacing portion set up respectively on knob, organism, can not cause the influence to the inner structure of electric control, its low in production cost, and assembly process is simple, and the practicality is strong.

Inventors

  • Du Fangkuan

Assignees

  • 中山市比尔熊电器有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (10)

  1. 1. The knob structure of the household appliance comprises a machine body and is characterized in that a machine body opening (1), a machine body limiting part (2), an electric control part (3) and a knob (4) are arranged on the machine body, the electric control part (3) and the knob (4) are respectively positioned at the inner side and the outer side of the machine body opening (1) and are connected in a matched mode, a knob limiting part (5) is arranged on the knob (4), and the knob limiting part (5) is in limiting fit with the machine body limiting part (2) in a rotating mode.
  2. 2. The knob structure of household electrical appliance according to claim 1, wherein two body limiting parts (2) are arranged on the outer wall of the body, and the two body limiting parts (2) are symmetrically arranged outside the body opening (1).
  3. 3. The knob structure of household electrical appliance according to claim 2, wherein one side of the body limiting part (2) is in limiting fit with the knob limiting part (5), and the other side is provided with a limiting reinforcing part (6).
  4. 4. The knob structure of a household electrical appliance according to claim 2, wherein the knob (4) is ring-shaped, a hole column (7) is arranged at the center of the knob (4), the knob (4) is connected with the electric control part (3) in a matched manner through the hole column (7), and the knob limiting parts (5) are provided with two knob limiting parts which respectively extend along two opposite sides of the hole column (7) in a straight line and are respectively connected with the inner wall of the ring of the knob (4).
  5. 5. The knob structure of the household electrical appliance of claim 4, wherein a knob reinforcing part (8) is further arranged between the outer side of the hole column (7) and the inner wall of the circular ring of the knob (4), the knob reinforcing part (8) extends linearly and forms an included angle with the knob limiting part (5), and the knob reinforcing part (8) is provided with an avoiding part (9) corresponding to the machine body limiting part (2).
  6. 6. The knob structure of household electrical appliance according to claim 4, wherein the outer wall of the body is provided with an annular positioning part (10), and the knob (4) is covered on the annular positioning part (10) and is positioned and rotated along the periphery of the annular positioning part (10).
  7. 7. The knob structure of home appliance according to claim 4, wherein the knob (4) is further provided with a decorative ring (11), the knob (4) is provided with an annular assembly groove (12), the annular assembly groove (12) is provided with a clamping portion (13), the decorative ring (11) is provided with a clamping matching portion (14), and the decorative ring is in clamping fit with the clamping portion (13) through the clamping matching portion (14).
  8. 8. The knob structure of household electrical appliance according to claim 4, wherein the electric control part (3) is fixed on the machine body through a fastener or a buckle, a rotating shaft (15) is arranged on the electric control part (3), and the rotating shaft (15) extends out of the machine body opening (1) and is connected with the hole column (7) in a matching manner.
  9. 9. The knob structure of household electrical appliance according to claim 8, wherein a plurality of body fixing parts (16) are arranged on the machine body, the body fixing parts (16) are arranged along the peripheral annular array of the machine body opening (1), the electric control part (3) is provided with electric control part fixing parts, the number of the electric control part fixing parts is the same as the number of the machine body fixing parts (16) and corresponds to the number of the machine body fixing parts, and the electric control part fixing parts are fixedly matched with the machine body fixing parts (16) through fasteners.
  10. 10. The knob structure of home appliances according to claim 1, wherein the knob (4) is provided with an anti-slip part (17) at the periphery thereof, the outer wall of the knob (4) is further provided with an indication part (18), and the outer wall of the body is provided with a rotation mark corresponding to the indication part (18).

Description

Knob structure of household electrical appliance Technical Field The utility model relates to the technical field of household appliances, in particular to a knob structure of a household appliance. Background The household electrical appliances of prior art can be provided with the time-recorder in order to start and stop of work usually, and the time-recorder adopts rotatory timing knob to preset time usually, but the skew appears in the button after long-time use, leads to the default time inaccurate from this, has the problem that stability is relatively poor to the excessive rotation knob of user can lead to the inner structure damage sometimes, is unfavorable for the long-time use of time-recorder. In order to solve the problems, the limit part is arranged inside the timer to solve the problems of excessive rotation and low rotation precision of the timer, but the adopted limit part is complex, the production cost is high, and meanwhile, assembly personnel are required to independently install the timer during assembly, and the assembly difficulty is high. Therefore, further improvements are needed. Disclosure of utility model The utility model aims to provide a knob structure of a household appliance product, which overcomes the defects in the prior art. According to the knob structure of the household electrical appliance product designed by the purpose, the household electrical appliance comprises a machine body, a machine body opening, a machine body limiting part, an electric control part and a knob are arranged on the machine body, the electric control part and the knob are respectively positioned on the inner side and the outer side of the machine body opening and are connected in a matched mode, and the knob is provided with the knob limiting part and is in limiting fit with the machine body limiting part through the knob limiting part during rotation. The machine body limiting parts are arranged in two and are convexly arranged on the outer wall of the machine body, and the two machine body limiting parts are symmetrically arranged on the outer side of the machine body opening. One side of the machine body limiting part is in limiting fit with the knob limiting part, and the other side of the machine body limiting part is provided with a limiting reinforcing part. The knob is circular, a hole column is arranged at the center of the knob, the knob is connected with the electric control part in a matched mode through the hole column, and the knob limiting parts are arranged at two positions and respectively extend along the straight lines on two opposite sides of the hole column and are respectively connected with the inner wall of the circular ring of the knob. The rotary knob comprises a rotary knob body and is characterized in that a knob reinforcing part is further arranged between the outer side of the hole column and the inner wall of the circular ring of the rotary knob, the knob reinforcing part linearly extends and forms an included angle with the knob limiting part, and the knob reinforcing part is provided with an avoiding part corresponding to the machine body limiting part. The outer wall of the machine body is provided with an annular positioning part, and the knob cover is arranged on the annular positioning part and rotates along the periphery of the annular positioning part in a positioning way. The knob is further provided with a decorative ring, the knob is provided with an annular assembly groove, the annular assembly groove is provided with a clamping part, and the decorative ring is provided with a clamping matching part which is matched with the clamping part in a clamping way. The electric control part is fixed on the machine body through a fastener or a buckle, a rotating shaft is arranged on the electric control part, and the rotating shaft extends out of the opening of the machine body and is connected with the hole column in a matched mode. The machine body is provided with machine body fixing parts, the machine body fixing parts are provided with a plurality of and are arranged along the peripheral annular array of the machine body opening, the electric control part is provided with electric control part fixing parts, the number of the electric control part fixing parts is the same as that of the machine body fixing parts and corresponds to that of the machine body fixing parts, and the electric control part fixing parts are fixedly matched with the machine body fixing parts through fasteners. The outer periphery of the knob is provided with an anti-skid part, the outer wall of the knob is also provided with an indication part, and the outer wall of the machine body is provided with a rotary mark corresponding to the indication part. The knob is in limit fit with the machine body limit part of the machine body through the knob limit part so as to limit the movement range and the position of the knob, further limit the rotation range and the position of the electric