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CN-224200457-U - Pulley assembly

CN224200457UCN 224200457 UCN224200457 UCN 224200457UCN-224200457-U

Abstract

The utility model discloses a pulley assembly, which comprises a pulley frame and pulley blocks arranged on the pulley frame, wherein the pulley blocks are provided with more than two pulleys which are arranged along the left-right direction, the pulleys can be arranged on the pulley frame in a vertically movable mode, the pulleys are provided with wheels and wheel shafts, the wheels are arranged on the pulley frame through the wheel shafts, the wheel shafts can be arranged on the pulley frame in a vertically movable mode, the left side and the right side of the wheel shafts of the pulley frame are respectively provided with an adjusting wheel, the adjusting wheels can be arranged on the pulley frame in a horizontally movable mode, and the wheel shafts are mutually contacted with the adjacent adjusting wheels. So, be provided with the height that the regulating wheel was used for self-adaptation to adjust the wheel through being provided with on the pulley for the wheel on each row all can be with the effective contact of track, balanced the atress of every wheel, let the push-and-pull of door and window more smooth and easy, also can reduce the wearing and tearing between wheel and the track, extension pulley assembly and door and window's life.

Inventors

  • FU HAI
  • DENG XIQIANG

Assignees

  • 深圳市派锁实业有限公司

Dates

Publication Date
20260505
Application Date
20250418

Claims (8)

  1. 1. The pulley assembly comprises a pulley frame and pulley blocks arranged on the pulley frame, wherein the pulley blocks are provided with more than two pulleys which are arranged along the left-right direction, and the pulley assembly is characterized in that the pulleys can be arranged on the pulley frame in a vertically movable mode, and the pulley assembly comprises: The pulley is provided with a wheel and a wheel shaft, the wheel is arranged on the wheel frame through the wheel shaft, the wheel shaft can be arranged on the wheel frame in an up-down movable mode, the wheel frame is provided with adjusting wheels on the left side and the right side of the wheel shaft, the adjusting wheels can be arranged on the wheel frame in a left-right movable mode, and the wheel shaft is in contact with the adjacent adjusting wheels; The pulley block is provided with 2 rows, the 2 rows of pulley blocks are arranged on the wheel frame along the front-back direction, the pulley frame is provided with a first connecting part, the wheel frame is provided with a second connecting part used for being connected with the first connecting part, and a swinging gap is arranged between the first connecting part and the first connecting part so that the pulley assembly can swing forwards or backwards around the length direction of the pulley block.
  2. 2. A pulley assembly as in claim 1, wherein at least 2 adjustment wheels are disposed between adjacent ones of said pulleys, and wherein said 2 adjustment wheels are in contact with each other.
  3. 3. A pulley assembly according to claim 2, wherein the wheel frame is an aluminum profile and is provided with a first mounting groove matched with the adjusting wheel, and a second mounting groove matched with the wheel shaft and positioned on the inner side of the first mounting groove.
  4. 4. A pulley assembly according to claim 3, wherein said first mounting groove is provided with a pair of raised guide projections, and said adjustment wheel has an annular guide groove adapted to mate with said guide projections.
  5. 5. A pulley assembly according to claim 4, wherein the center of the adjusting wheel is located above the center of the axle.
  6. 6. The pulley assembly of claim 1, wherein the first connecting portion is a swinging cavity arranged on a pulley fan fixing frame, the second connecting portion is a swinging cap arranged on a wheel frame and positioned in the swinging cavity, and the swinging cavity is provided with an arc-shaped inner wall and an arc-shaped outer wall matched with the arc-shaped inner wall.
  7. 7. A pulley assembly according to claim 6, wherein the wheel frame is provided with an adjusting mechanism for adjusting the height of the wheel.
  8. 8. The pulley assembly of claim 7, wherein the adjusting mechanism comprises a sliding block for pushing the adjusting wheel to move transversely, an adjusting screw is arranged on one side, away from the adjusting wheel, of the sliding block, the adjusting screw is connected to the wheel frame in a threaded mode, the head end of the adjusting screw is located outside the wheel frame, and the tail end of the adjusting screw is located in the wheel frame and is in contact with the sliding block.

Description

Pulley assembly Technical Field The utility model relates to the field of doors and windows, in particular to a pulley assembly. Background The traditional door and window pulley can not uniformly bear the weight of the wheel due to manufacturing errors (such as the wheel is not on the same horizontal plane) because the wheel and the wheel frame are rigidly connected, so that the abrasion of part of the wheel and the rail can be increased, and in the use process, the contact effect of the wheel and the rail is not good enough, and the movement is not smooth enough. Therefore, a new technical solution is needed to solve the above problems. Disclosure of utility model In order to solve the defects and shortcomings of the prior art, the utility model provides the pulley assembly, which is characterized in that the pulleys are provided with the adjusting wheels for adaptively adjusting the heights of the wheels, so that the wheels on each row can be effectively contacted with the rail, the stress of each wheel is balanced, the sliding of a door and a window is smoother, the abrasion between the wheels and the rail can be reduced, and the service lives of the pulley assembly and the door and the window are prolonged. In order to achieve the above purpose, the present utility model adopts the following technical scheme: the pulley assembly comprises a pulley frame and pulley blocks arranged on the pulley frame, wherein the pulley blocks are provided with more than two pulleys which are arranged along the left-right direction and can be arranged on the pulley frame in a vertical moving mode, and the pulley blocks are arranged on the pulley frame in a vertical moving mode, wherein: The pulley is provided with a wheel and a wheel shaft, the wheel is arranged on the wheel frame through the wheel shaft, the wheel shaft can be arranged on the wheel frame in an up-down movable mode, the wheel frame is provided with adjusting wheels on the left side and the right side of the wheel shaft, the adjusting wheels can be arranged on the wheel frame in a left-right movable mode, and the wheel shaft is in contact with the adjacent adjusting wheels; The pulley block is provided with 2 rows, the 2 rows of pulley blocks are arranged on the wheel frame along the front-back direction, the pulley frame is provided with a first connecting part, the wheel frame is provided with a second connecting part used for being connected with the first connecting part, and a swinging gap is arranged between the first connecting part and the first connecting part so that the pulley assembly can swing forwards or backwards around the length direction of the pulley block. As a preferred solution, at least 2 regulating wheels are arranged between two adjacent pulleys, and the 2 regulating wheels are in contact with each other. As a preferable scheme, the wheel frame is an aluminum profile and is provided with a first mounting groove matched with the adjusting wheel, and the wheel frame is provided with a second mounting groove matched with the wheel shaft and positioned on the inner side of the first mounting groove. As a preferred solution, the first mounting groove is provided with a pair of raised guide projections, and the regulating wheel has an annular guide groove adapted to the guide projections. As a preferable scheme, the circle center of the regulating wheel is positioned above the circle center of the wheel shaft. As a preferable scheme, the first connecting part is a swinging cavity arranged on the pulley fan fixing frame, the second connecting part is a swinging cap arranged on the wheel frame, the swinging cap is positioned in the swinging cavity, the swinging cavity is provided with an arc inner wall, and the swinging cap is provided with an arc outer wall matched with the arc inner wall. As a preferable scheme, the wheel frame is provided with an adjusting mechanism for adjusting the height of the wheel. As a preferable scheme, the adjusting mechanism comprises a sliding block for pushing the adjusting wheel to transversely move, one side, far away from the adjusting wheel, of the sliding block is provided with an adjusting screw, the adjusting screw is in threaded connection with the wheel frame, the head end of the adjusting screw is located outside the wheel frame, and the tail end of the adjusting screw is located in the wheel frame and is in contact with the sliding block. Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal shows that the utility model mainly leads each wheel to be in effective contact with the track by arranging the adjusting wheel on each row of pulleys for adaptively adjusting the height of the wheel, balances the stress of each wheel, leads the sliding of the door and window to be smoother, can reduce the abrasion between the wheels and the track, and prolongs the service life of the pulley component and the door and window; The p