Three-linkage device

Abstract

The utility model relates to a three-linkage device which is used for installing doors and windows and is characterized in that a window and a boss are arranged at the top of a shell, and a strip-shaped through hole is formed in the front surface; the long adjusting plate is installed on the top of the shell, a left strip-shaped hole, an inclined strip-shaped hole and a right strip-shaped hole are formed in the top of the long adjusting plate, the transverse deflection plate penetrates through the left strip-shaped hole and the top face of the shell through a screw to be installed on the top of the long adjusting plate, and a protruding column protrudes out of the bottom of the transverse deflection plate. The longitudinal deflection plate and the short adjusting plate are sequentially stacked and installed on the inner wall of the shell from inside to outside in the shell, an inclined strip-shaped hole and a protruding nail are arranged on the front face of the short adjusting plate, and the left end of the longitudinal deflection plate penetrates through the inclined strip-shaped hole of the short adjusting plate and the front face of the shell through a rivet to be installed. Two through holes are formed in the right side face of the shell, and one ends of the short and long plate screws penetrate through the two through holes to be connected with the right ends of the short and long adjusting plates through threads. The utility model has the advantages of simple structure, convenience in adjustment, strong bearing capacity, difficulty in structure looseness and long service life.

Description

Technical Field

[0001] This utility model relates to a three-linkage device, specifically an adjustable three-linkage roller device for the installation of doors, windows and guide rails. Background Technology

[0002] In daily life, sliding doors and windows are often installed using adjustable pulleys. Installing sliding doors and windows with adjustable pulleys allows them to move more smoothly depending on the installation environment. However, the traditional three-linkage anti-jumping wheel structure has a poor load-bearing capacity of the adjustment structure. After long-term use, the adjustment structure may loosen, making the sliding doors and windows move less smoothly or even causing damage to the doors and windows. Utility Model Content

[0003] The purpose of this utility model is to provide a three-linkage device, which is installed on a long adjustment plate by means of a lateral deflection plate. When the long adjustment plate moves back and forth, the lateral deflection plate swings back and forth accordingly. When the short adjustment plate moves back and forth, the longitudinal deflection plate swings up and down to achieve the principle of adjusting the position of the longitudinal and lateral wheels, thereby achieving the purpose of convenient adjustment and strong load-bearing capacity.

[0004] The technical solution of this utility model is based on a shell, a transverse wheel, a transverse deflection plate, a long adjusting plate, a longitudinal deflection plate, a longitudinal wheel, a short adjusting plate, a short plate screw, a long plate screw, and two transverse wheels respectively installed at the top left and right ends of the transverse deflection plate, and a longitudinal wheel installed at the rear right end of the longitudinal deflection plate. The key features are a window at the top right end of the shell, a boss in the middle, and a strip-shaped through hole at the front right end; the long adjusting plate is installed on the top of the shell, and from left to right, the top left end of the long adjusting plate has a left strip-shaped hole, an inclined strip-shaped hole, and a right strip-shaped hole. The position of the right strip-shaped hole of the long adjusting plate corresponds to the position of the boss on the shell, and the boss is inserted into the right strip-shaped hole, allowing the long adjusting plate to move left and right on the top of the shell. The right end of the long adjusting plate bends and extends into the shell through the window; the transverse deflection plate is installed on the long adjusting plate by a screw at the top middle, passing through the left strip-shaped hole of the long adjusting plate and the top surface of the shell. At the top left end of the plate, a protruding post is raised at the bottom of the lateral deflection plate. The position of the protruding post corresponds to the position of the inclined strip hole of the long adjustment plate, so that when the long adjustment plate moves left and right, the protruding post slides in the inclined strip hole, forcing the lateral deflection plate to rotate forward and backward. The longitudinal deflection plate and the short adjustment plate are stacked and installed in sequence from the inside to the outside on the inner wall of the front of the window section of the outer shell. The top left end of the front of the short adjustment plate is provided with an inclined strip hole, and the right end is provided with a protruding nail corresponding to the strip through hole on the right end of the front of the outer shell. The protruding nail is inserted into the strip through hole on the right end of the front of the outer shell, so that the short adjustment plate can move left and right on the outer shell. The left end of the longitudinal deflection plate is installed by a rivet passing through the inclined strip hole of the short adjustment plate and the front of the outer shell. There are two through holes on the right side of the outer shell. One end of the short plate screw passes through the through hole and is connected to the right end of the short adjustment plate by thread. One end of the long plate screw passes through the through hole and is connected to the right end of the long adjustment plate by thread.

[0005] The working principle of this utility model is that when the short plate screw and the long plate screw rotate forward and backward, they drive the short and long adjustment plates to move left and right. Through the interaction between the inclined strip holes on the short and long adjustment plates, the bosses on the lateral deflection plate, and the rivets on the longitudinal deflection plate, the lateral deflection plate and the longitudinal deflection plate can swing forward and backward and up and down respectively. This achieves the purpose of adjusting the position of the lateral wheel and the longitudinal wheel, while ensuring that the adjustment structure is stable and not easy to loosen, and that the adjustment is convenient.

[0006] The advantages of this utility model are simple structure, convenient adjustment, strong load-bearing capacity, not easy to loosen the structure, and long service life. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model from a top three-dimensional perspective;

[0008] Figure 2 This is a schematic diagram of the overall structure of the present invention from a three-dimensional perspective at the bottom.

[0009] Figure 3 This is a three-dimensional structural diagram of the disassembled state of this utility model. Detailed Implementation

[0010] according to Figure 1 , Figure 2 , Figure 3 As shown, the top, bottom, left, right, front, and back directions in this embodiment are based on... Figure 1 For reference, this utility model includes a shell 1, a transverse wheel 2, a transverse deflection plate 3, a long adjusting plate 4, a longitudinal deflection plate 5, a longitudinal wheel 6, a short adjusting plate 7, a short plate screw 7.1, and a long plate screw 8.2. Two transverse wheels 2 are respectively installed at the top left and right ends of the transverse deflection plate 3, and the longitudinal wheel 6 is installed at the rear right end of the longitudinal deflection plate 5. The features include a window at the top right end of the shell 1, a boss in the middle, and a strip-shaped through hole at the front right end; the long adjusting plate 4 is installed on the top of the shell 1, and a left strip is sequentially arranged from left to middle at the top left end of the long adjusting plate 4. The long axes of the three slotted holes, the inclined slotted hole, the right slotted hole, the left slotted hole, and the right slotted hole extend horizontally from left to right. The long axis of the inclined slotted hole extends obliquely from left to right from back to front. The position of the right slotted hole of the long adjusting plate 4 corresponds to the position of the boss of the outer shell 1. The boss is inserted into the right slotted hole, allowing the long adjusting plate 4 to move left and right on the top of the outer shell 1. The rear right side of the long adjusting plate 4 bends downward and extends into the outer shell through the outer shell window, and then the right end bends vertically inward. The lateral deflection plate 3 is installed on the long adjusting plate 1 by passing through the left slotted hole of the long adjusting plate 3 and the top surface of the outer shell 1 through a screw at the middle of the top. At the top left end of the section plate 4, a protruding post protrudes from the bottom of the transverse deflection plate 3. The position of the protruding post corresponds to the position of the inclined strip hole of the long adjusting plate 4, so that when the long adjusting plate 4 moves left and right, the protruding post slides in the inclined strip hole, forcing the transverse deflection plate 3 to swing back and forth. The longitudinal deflection plate 5 and the short adjusting plate 7 are installed in sequence from the inside to the outside on the inner wall of the front of the window section of the outer shell 1. The right end of the short adjusting plate 7 is bent vertically inward. An inclined strip hole is provided at the top left end of the front of the short adjusting plate 7, and a protruding nail is provided at the right end corresponding to the position of the strip through hole at the right end of the front of the outer shell. The long axis of the inclined strip hole of section plate 7 is inclined from left to right from low to high. The protruding nail is inserted into the strip through hole at the right end of the front of the outer shell, so that the short adjusting plate 7 can move left and right on the outer shell. The left end of the longitudinal deflection plate 5 is installed by rivets passing through the inclined strip hole of the short adjusting plate 7 and the front of the outer shell 1. There are two through holes on the right side of the outer shell 1. The threaded section of the left end of the short plate screw 8.1 passes through the through hole and is connected to the right end of the short adjusting plate by threads. The threaded section of the left end of the long plate screw 8.2 passes through the through hole and is connected to the right end of the long adjusting plate 4 by threads.

Claims

1. A three-linkage device, comprising a housing, a transverse wheel, a transverse deflection plate, a long adjusting plate, a longitudinal deflection plate, a longitudinal wheel, a short adjusting plate, a short plate screw, a long plate screw, wherein two transverse wheels are respectively installed at the top left and right ends of the transverse deflection plate, and the longitudinal wheel is installed at the rear right end of the longitudinal deflection plate, characterized in that... The outer casing has a window on the top right, a boss in the middle, and a strip-shaped through hole on the front right. A long adjusting plate is mounted on the top of the casing. From left to right, the top left end of the long adjusting plate has a left strip-shaped hole, an inclined strip-shaped hole, and a right strip-shaped hole. The position of the right strip-shaped hole on the long adjusting plate corresponds to the position of the boss on the casing. The boss inserts into the right strip-shaped hole, allowing the long adjusting plate to move left and right on the top of the casing. The right end of the long adjusting plate bends and extends into the casing through the window. A lateral deflection plate is mounted on the top left end of the long adjusting plate via a screw in the middle of the top, passing through the left strip-shaped hole on the long adjusting plate and the top surface of the casing. The bottom of the lateral deflection plate has a protruding post, the position of which corresponds to the position of the inclined strip-shaped hole on the long adjusting plate, allowing the long adjusting plate to move left and right. When in motion, the protruding post slides within the inclined strip-shaped hole, forcing the transverse deflection plate to rotate forward and backward. The longitudinal deflection plate and the short adjustment plate are stacked sequentially from the inside to the outside on the inner wall of the front of the window section of the outer shell. The top left end of the front of the short adjustment plate has an inclined strip-shaped hole, and the right end has a protruding nail corresponding to the strip-shaped through hole on the right end of the front of the outer shell. The protruding nail is inserted into the strip-shaped through hole on the right end of the front of the outer shell, allowing the short adjustment plate to move left and right on the outer shell. The left end of the longitudinal deflection plate is installed by a rivet passing through the inclined strip-shaped hole of the short adjustment plate and the front of the outer shell. There are two through holes on the right side of the outer shell. One end of the short plate screw passes through the through hole and is threaded to the right end of the short adjustment plate. One end of the long plate screw passes through the through hole and is threaded to the right end of the long adjustment plate.

Images