Side-adjustable height-adjustable invisible sliding door wheel

By using two sliding sliders and an adjusting screw structure, combined with the design of a connecting arm and a guide hole, the problem of door and window rollers becoming loose during long-term use has been solved, achieving stable and low-noise adjustment of door and window rollers.

CN224532499UActive Publication Date: 2026-07-21ZHAOQING SILIKE HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHAOQING SILIKE HARDWARE PROD CO LTD
Filing Date
2025-05-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing adjustable door and window rollers are prone to loosening during long-term use, leading to increased noise, uneven movement, and inconvenient maintenance.

Method used

It adopts a structure of two translation sliders and adjusting screws, and forces the adjusting plate to move up and down through the left and right connecting arms. Combined with the guide hole layout of the inverted "品" shape and the anti-detachment fixing paddle design, it ensures the stable movement of the adjusting plate.

Benefits of technology

It improves the stability and load-bearing capacity of door and window pulleys, and the adjusting parts are not easy to loosen after long-term use. It is also quiet and easy to adjust.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224532499U_ABST
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Abstract

The utility model relates to side adjust high and low invisible sliding door wheel for door and window installation, it discloses that the back middle part of adjusting plate has T head stand, adjusting plate can be installed in the bottom plate front surface and moves up and down through T head stand, and the bottom left and right sides of bottom plate front surface are provided with strip through -hole, two sliders can be installed on the left and right strip through -hole of bottom plate and move left and right respectively, adjusting screw rod is arranged between two sliders, and the left and right ends are connected with two sliders through thread respectively, the both ends of left connecting arm are hinged with the T head stand of adjusting plate and the top end of left slider respectively, the both ends of right connecting arm are hinged with the T head stand of adjusting plate and the top end of right slider respectively, and one end of anti -drop fixed push piece is hinged in adjusting plate top portion, the utility model has the advantages of simple structure, low manufacturing cost, stable work, convenient adjustment, small noise, it can make door and window pulley long -time work and adjust component not easy to loosen, improves the overall bearing capacity of door and window pulley.
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Description

Technical Field

[0001] This utility model relates to a side-adjustable height-reducing concealed sliding door wheel, specifically a door and window installation wheel that is easy to adjust, has a compact structure, and a strong load-bearing capacity. Background Technology

[0002] Currently, stable doors and windows are commonly used in wardrobes, interior and exterior doors and windows. In the installation of these doors and windows, most use adjustable balance and height wheels to make the doors and windows more stable and convenient to install on the door or window frame. However, the structure of the adjustable wheels on the market is prone to loosening of parts during long-term use, which makes the doors and windows noisier, less smooth to move, and inconvenient to maintain and adjust after a long period of use. Summary of the Invention

[0003] The purpose of this utility model is to provide a side-adjustable height concealed sliding door wheel. It uses two sliding sliders to shorten or increase the distance between them when the adjusting screw is rotated. Then, the left and right connecting arms force the adjusting plate to move up and down for adjustment, thereby achieving convenient adjustment, strong load-bearing capacity, and the purpose of preventing the adjusting parts from loosening.

[0004] The technical solution of this utility model is based on a base plate, an adjusting plate, sliders, an adjusting screw, a left connecting arm, a right connecting arm, an anti-detachment fixing plate, steel balls, and a rebound plate. Its key feature is that a T-shaped column protrudes from the center of the back of the adjusting plate, allowing the adjusting plate to be mounted vertically on the front of the base plate via the T-shaped column. The bottom left and right sides of the front of the base plate have horizontally arranged strip-shaped through holes. Two sliders are respectively mounted on the left and right strip-shaped through holes on the left and right sides of the base plate. The adjusting screw is positioned between the two sliders, with its left and right ends passing through the left and right sliders and connected to them via threads. One end of the left connecting arm is hinged to the T-shaped column of the adjusting plate, and the other end is hinged to the top of the left slider. The right connecting arm… One end is hinged to the T-head column of the adjustment plate, and the other end is hinged to the top of the slider on the right. The top of the adjustment plate is provided with a through hole, and a steel ball is installed in the through hole. The top of the steel ball protrudes out of the through hole. One end of the rebound plate is fixedly installed on the bottom surface of the top of the adjustment plate, and the other end extends to the bottom of the through hole on the top of the adjustment plate to block the through hole and prevent the steel ball from falling from the bottom of the through hole. One end of the anti-detachment fixing plate is hinged to the top of the adjustment plate. The anti-detachment fixing plate is provided with two through holes. One through hole is vertically opposite to the steel ball when the anti-detachment fixing plate swings forward on the adjustment plate, and the other through hole is vertically opposite to the steel ball when the anti-detachment fixing plate swings to the right side of the adjustment plate. When the through hole of the anti-detachment fixing plate is vertically opposite to the steel ball, the top of the steel ball can be inserted into the through hole of the anti-detachment fixing plate.

[0005] When the adjusting plate of the present utility model moves up and down, it is guided by guide holes arranged in an inverted "pin" shape. The guide holes arranged in an inverted "pin" shape are longitudinal strip-shaped through holes provided on the left and right sides of the adjusting plate, and a longitudinal strip-shaped through hole is provided in the middle of the bottom of the adjusting plate; on the front surface of the bottom plate, guide rods protrude at positions corresponding to the strip-shaped through holes of the adjusting plate, and T-head columns protrude at positions corresponding to the longitudinal strip-shaped through holes on the left and right sides of the adjusting plate; the T-head columns and guide rods on the left and right sides of the bottom plate are respectively inserted into the longitudinal strip-shaped through holes on the left and right sides of the adjusting plate and the strip-shaped through hole in the middle of the bottom, forcing the adjusting plate to move up and down stably when moving.

[0006] When the adjusting screw of the present utility model rotates forward and backward, it can force the left and right sliders to move, reducing or increasing the distance between the two sliders, and at the same time forcing the adjusting plate to move up and down on the bottom plate through the left connecting arm and the right connecting arm; a bearing nail is provided in the middle of the front surface of the adjusting plate.

[0007] The working principle of the present utility model is to force the left and right sliders to reduce or increase the distance between them by rotating the adjusting screw forward and backward, and at the same time force the adjusting plate connected to the two sliders through the left connecting arm and the right connecting arm to move up and down, thereby driving the door and window pulleys installed on the adjusting plate to move up and down to achieve the adjustment purpose. Because the adjustment force for the up and down movement of the adjusting plate is converted from the horizontal force through the left connecting arm and the right connecting arm into the vertical force, and on the condition that the adjusting screw and the slider are connected by threads, the bearing capacity of the adjusting plate is stronger, and the adjusting components will not loosen after long-term use, making the door and window pulleys work more stably.

[0008] The advantages of the present utility model are simple structure, low manufacturing cost, stable operation, convenient adjustment, and low noise. It can make the adjustment components of the door and window pulleys not easy to loosen after long-term work, and improve the overall bearing capacity of the door and window pulleys. Brief Description of the Drawings

[0009] Figure 1 is the front three-dimensional structure schematic diagram of the present utility model;

[0010] Figure 2 is the back three-dimensional structure schematic diagram of the present utility model;

[0011] Figure 3 is the top-view three-dimensional structure schematic diagram of the present utility model;

[0012] Figure 4 is the exploded three-dimensional structure schematic diagram of the present utility model;

[0013] Figure 5 is the plane internal structure schematic diagram of the present utility model;

[0014] Figure 6This is a schematic diagram of the structure of this utility model installed on the door slide rail;

[0015] Figure 7 This is a three-dimensional structural diagram of the anti-detachment fixing lever of this utility model when it is installed on the adjustment plate and swings forward;

[0016] Figure 8 This is a three-dimensional structural diagram of the anti-detachment fixing lever of this utility model when it is installed on the adjustment plate and swings horizontally;

[0017] Figure 9 This is a three-dimensional structural diagram of the anti-detachment fixing lever of this utility model installed on the adjustment plate from an upward angle.

[0018] Figure 10 This is a cross-sectional three-dimensional structural diagram of the anti-detachment fixing lever of this utility model installed on the adjustment plate. Detailed Implementation

[0019] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the directions described in this embodiment, such as up, down, left, and right, are... Figure 5Taking this direction as a reference, based on the base plate 1, the adjusting plate 2, the slider 3, the adjusting screw 4, the left connecting arm 5, the right connecting arm 6, the anti - detachment fixing flap 7, the steel ball 8, and the rebound piece 9, the utility model is characterized in that a T - head column 2.1 protrudes from the middle of the back surface of the adjusting plate 2. The adjusting plate 2 is inserted into the longitudinal strip - shaped hole in the middle of the base plate 1 through the T - head column 2.1 and is installed on the front surface of the base plate 1 so as to be movable up and down. Transverse strip - shaped through - holes are provided on the left and right sides at the bottom of the front surface of the base plate 1. Two sliders 3 are respectively installed on the left and right strip - shaped through - holes of the base plate so as to be movable left and right. The adjusting screw 4 is arranged between the two sliders, and the left and right ends of the adjusting screw 4 respectively pass through the left and right sliders and are connected to the two sliders 3 through threads. The top end of the left connecting arm 5 is hinged to the T - head column of the adjusting plate, and the bottom end is hinged to the top end of the left slider. The top end of the right connecting arm is hinged to the T - head column of the adjusting plate, and the bottom end is hinged to the top end of the right slider. A through - hole is provided at the top of the adjusting plate 2, and the steel ball 8 is installed in the through - hole. The top of the steel ball 8 protrudes outside the through - hole. The left end of the rebound piece 9 is fixedly installed on the bottom surface of the top of the adjusting plate 2, and the right end extends to the lower part of the through - hole at the top of the adjusting plate 2 to block the through - hole, which can prevent the steel ball 8 from falling from the bottom of the through - hole. The rear end of the anti - detachment fixing flap 7 is hinged to the top of the adjusting plate 2. Two through - holes are provided on the anti - detachment fixing flap 7. One through - hole is vertically opposite to the steel ball 8 when the anti - detachment fixing flap 7 swings forward to the front of the adjusting plate 2, and the other through - hole is vertically opposite to the steel ball 8 when the anti - detachment fixing flap 7 swings horizontally to the right side of the adjusting plate 2. When the through - hole of the anti - detachment fixing flap 7 is vertically opposite to the steel ball 8, the top of the steel ball 8 can be inserted into the through - hole of the anti - detachment fixing flap 7. When the adjusting plate 2 moves up and down, it is guided by the guiding holes arranged in an inverted "pin" - shaped layout. The guiding holes arranged in an inverted "pin" - shaped layout are longitudinal strip - shaped through - holes provided on the left and right sides of the adjusting plate, and a longitudinal strip - shaped through - hole is provided in the middle of the bottom of the adjusting plate. Guide rods 1.1 protrude at the positions on the front surface of the base plate opposite to the strip - shaped through - holes of the adjusting plate, and T - head columns 1.2 protrude at the positions on the front surface of the base plate opposite to the longitudinal strip - shaped through - holes on the left and right sides of the adjusting plate. The T - head columns on the left and right sides of the base plate 1 and the guide rods are respectively inserted into the longitudinal strip - shaped through - holes on the left and right sides of the adjusting plate 2 and the strip - shaped through - hole in the middle of the bottom of the adjusting plate, forcing the adjusting plate to move up and down stably when moving. When the adjusting screw 4 rotates forward and backward, it can force the left and right sliders 3 to move, reducing or increasing the distance between the two sliders, and at the same time, forcing the adjusting plate 2 to move up and down on the base plate 1 through the left connecting arm 5 and the right connecting arm 6. A bearing nail 2.2 is provided at the middle of the front surface of the adjusting plate 2.

Claims

1. A side-adjustable height-reducing concealed sliding door wheel, comprising a base plate, an adjusting plate, a slider, an adjusting screw, a left connecting arm, a right connecting arm, an anti-slip fixing lever, steel balls, and a rebound plate, characterized in that… A T-shaped column protrudes from the middle of the back surface of the adjusting plate. The adjusting plate is installed on the front surface of the bottom plate through the T-shaped column so that it can move up and down. Transverse strip-shaped through holes are provided on the left and right sides at the bottom of the front surface of the bottom plate. Two sliders are respectively installed on the left and right strip-shaped through holes of the bottom plate so that they can move left and right. An adjusting screw is arranged between the two sliders, and the left and right ends of the adjusting screw respectively pass through the left and right sliders and are connected to the two sliders by threads. One end of the left connecting arm is hinged to the T-shaped column of the adjusting plate, and the other end is hinged to the top end of the left slider. One end of the right connecting arm is hinged to the T-shaped column of the adjusting plate, and the other end is hinged to the top end of the right slider. A through hole is provided at the top of the adjusting plate, and a steel ball is installed in the through hole. The top of the steel ball protrudes out of the through hole. One end of the rebound piece is fixedly installed on the bottom surface of the top of the adjusting plate, and the other end extends below the through hole at the top of the adjusting plate to block the through hole, which can prevent the steel ball from falling from the bottom of the through hole. One end of the anti-drop fixing dial is hinged to the top of the adjusting plate. Two through holes are provided on the anti-drop fixing dial. One of the through holes is vertically opposite to the steel ball when the anti-drop fixing dial swings forward to the adjusting plate, and the other through hole is vertically opposite to the steel ball when the anti-drop fixing dial swings to the right side of the adjusting plate. When the through hole of the anti-drop fixing dial is vertically opposite to the steel ball, the top of the steel ball can be stuck into the through hole of the anti-drop fixing dial.

2. The side-adjustable height concealed sliding door wheel according to claim 1, characterized in that, When the adjusting plate moves up and down, it is guided by the guiding holes arranged in an inverted "pin" shape. The guiding holes arranged in an inverted "pin" shape are longitudinal strip-shaped through holes provided on the left and right sides of the adjusting plate, and a longitudinal strip-shaped through hole is provided in the middle of the bottom of the adjusting plate. Guide rods protrude at the positions on the front surface of the bottom plate corresponding to the strip-shaped through holes of the adjusting plate, and T-shaped columns protrude at the positions corresponding to the longitudinal strip-shaped through holes on the left and right sides of the adjusting plate. The T-shaped columns and guide rods on the left and right sides of the bottom plate are respectively inserted into the longitudinal strip-shaped through holes on the left and right sides of the adjusting plate and the strip-shaped through hole in the middle of the bottom, forcing the adjusting plate to move up and down stably when moving.

3. The side-adjustable height concealed sliding door wheel according to claim 1, characterized in that, When the adjusting screw rotates forward and backward, it can force the left and right sliders to move, reducing or increasing the distance between the two sliders, and at the same time forcing the adjusting plate to move up and down on the bottom plate through the left connecting arm and the right connecting arm. A bearing nail is provided in the middle of the front surface of the adjusting plate.