Hidden sliding door wheel capable of laterally adjusting height
Through two translation sliders and adjustment screw structures, combined with the connecting arm and guide hole design, the existing door and window wheel loosening problem is solved, the stability and load-bearing capacity of the pulley are improved, and the effect of low noise and convenient adjustment is achieved.
Patent Information
- Application Number
- CN202510666752.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2025-08-12
AI Technical Summary
Existing adjustable door and window wheels are prone to loosening during long-term use, resulting in increased noise, unsmooth movement and inconvenient maintenance.
The two translation sliders and adjustment screw structures are adopted, and the adjustment plate is forced to move up and down through the left and right connecting arms. The guide holes and anti-detachment fixing pad design are combined with the inverted "product" font layout to ensure the stable movement of the adjustment plate.
The stability and load-bearing capacity of door and window pulleys are improved, reducing the risk of loosening after long-term use, with low noise and easy adjustment.
Smart Images

Figure CN120465786A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a side-adjustable height invisible sliding door wheel, in particular to a door and window installation wheel which has the advantages of convenient adjustment, compact structure and strong load-bearing capacity. Background Art
[0002] Stable doors and windows on the market are common in wardrobes, indoor and outdoor doors and windows. In the installation of such doors and windows, most use wheels with adjustable balance and height to make the doors and windows more stable and convenient to install on the door frame or window frame. However, the structure used by the adjustable wheels on the market is prone to loose components during long-term use, which makes the doors and windows noisy, move not smoothly, and are inconvenient to maintain and adjust after a long period of use. Summary of the Invention
[0003] The purpose of the present invention is to provide a side-adjustable height invisible sliding door wheel, which adopts two translational sliders to shorten or increase the distance between the two when the adjusting screw rotates, and then forces the adjusting plate to move up and down for adjustment through the left connecting arm and the right connecting arm, thereby achieving the purposes of convenient adjustment, strong load-bearing capacity, and the adjusting component is not easy to loosen.
[0004] The technical solution of the present invention is based on a base plate, an adjusting plate, a slider, an adjusting screw, a left connecting arm, a right connecting arm, an anti-slip fixing paddle, a steel ball, and a rebound plate. The characteristic is that a T-head column is raised in the middle of the back of the adjusting plate, and the adjusting plate can be installed on the front of the base plate by moving up and down through the T-head column. Strip-shaped through holes are horizontally provided on the left and right sides of the bottom of the front of the base plate; the two sliders can be installed on the left and right strip-shaped through holes of the base plate respectively, and the adjusting screw is provided between the two sliders, and the left and right ends of the adjusting screw pass through the left and right sliders respectively and are connected to the two sliders by threads; one end of the left connecting arm is hinged to the T-head column of the adjusting plate, and the other end is hinged to the top of the left slider; one end of the right connecting arm is hinged to the T-head column of the adjusting plate, and the other end is hinged to the top of the left slider; one end of the right connecting arm is hinged to the top of the right slider One end is hinged to the T-head column of the adjusting plate, and the other end is hinged to the top of the slider on the right; a through hole is provided on the top of the adjusting plate, and the steel ball is installed in the through hole, and 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 adjusting plate, and the other end extends to the bottom of the through hole on 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-slip fixed paddle is hinged to the top of the adjusting plate, and two through holes are provided on the anti-slip fixed paddle, one of which is opposite to the steel ball up and down when the anti-slip fixed paddle is swung to the front of the adjusting plate, and the other through hole is opposite to the steel ball up and down when the anti-slip fixed paddle is swung to the right side of the adjusting plate. When the through hole of the anti-slip fixed paddle and the steel ball are opposite up and down, the top of the steel ball can be stuck in the through hole of the anti-slip fixed paddle.
[0005] When the adjusting plate of the present invention 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 invention 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 invention 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 a longitudinal 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 invention are simple structure, low manufacturing cost, stable operation, convenient adjustment, and low noise. It can prevent the adjustment components from loosening easily after long-term operation of the door and window pulleys, and improve the overall bearing capacity of the door and window pulleys. Description of the Drawings
[0009] Figure 1 is a front three-dimensional structural schematic diagram of the present invention;
[0010] Figure 2 is a back three-dimensional structural schematic diagram of the present invention;
[0011] Figure 3 is a top-view three-dimensional structural schematic diagram of the present invention;
[0012] Figure 4 is an exploded three-dimensional structural schematic diagram of the present invention;
[0013] Figure 5 is a plane internal structural schematic diagram of the present invention;
[0014] Figure 6 is a structural schematic diagram of the present invention installed on the door rail;
[0015] Figure 7 2. It is a schematic diagram of the three-dimensional structure of the anti-drop fixed paddle of the present invention when it is installed on the adjustment plate and swung forward;
[0016] Figure 8 2. It is a schematic diagram of the three-dimensional structure of the anti-drop fixed paddle of the present invention when it is installed on the adjustment plate and swung horizontally;
[0017] Figure 9 2. It is a schematic diagram of the three-dimensional structure of the anti-drop fixed paddle of the present invention installed on the adjustment plate at an upward viewing angle;
[0018] Figure 10 It is a schematic diagram of the sectional three-dimensional structure of the anti-slip fixing paddle of the present invention installed on the adjustment plate. DETAILED DESCRIPTION
[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 of up, down, left, and right described in this embodiment are as follows: Figure 5Taking this direction as a reference, based on the base plate 1, the adjustment plate 2, the slider 3, the adjustment 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 feature of the present invention is that a T - head column 2.1 protrudes from the middle of the back surface of the adjustment plate 2. The adjustment plate 2 is snapped 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 adjustment screw 4 is arranged between the two sliders, and the left and right ends of the adjustment 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 adjustment 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 adjustment 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 adjustment plate 2, the steel ball 8 is installed in the through - hole, and the top of the steel ball 8 protrudes out of the through - hole. The left end of the rebound piece 9 is fixedly installed on the bottom surface at the top of the adjustment plate 2, and the right end extends to the lower part of the through - hole at the top of the adjustment 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 adjustment 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 adjustment 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 adjustment 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 snapped into the through - hole of the anti - detachment fixing flap 7. When the adjustment 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 adjustment plate, and a longitudinal strip - shaped through - hole is provided in the middle of the bottom of the adjustment plate; on the front surface of the base plate, guiding rods 1.1 protrude at positions corresponding to the strip - shaped through - holes of the adjustment plate, and T - head columns 1.2 protrude at positions corresponding to the longitudinal strip - shaped through - holes on the left and right sides of the adjustment plate; the T - head columns and the guiding rods on the left and right sides of the base plate 1 are respectively snapped into the longitudinal strip - shaped through - holes on the left and right sides of the adjustment plate 2 and the strip - shaped through - hole in the middle of the bottom of the adjustment plate, forcing the adjustment plate to move up and down stably when moving. When the adjustment 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 adjustment 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 adjustment plate 2.
Claims
1. The side-adjustable height invisible sliding door wheel includes a bottom plate, an adjustment plate, a slider, an adjustment screw, a left connecting arm, a right connecting arm, an anti-slip fixed paddle, a steel ball, and a rebound plate. It is characterized by: 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 outside 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-detachment fixing flap is hinged to the top of the adjusting plate. Two through holes are provided on the anti-detachment fixing flap. One of the through holes is vertically opposite to the steel ball when the anti-detachment fixing flap swings forward to the adjusting plate, and the other through hole is vertically opposite to the steel ball when the anti-detachment fixing flap swings to the right side of the adjusting plate. When the through hole of the anti-detachment fixing flap is vertically opposite to the steel ball, the top of the steel ball can be stuck into the through hole of the anti-detachment fixing flap.
2. The side-adjustable invisible 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 invisible 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.