Universal sliding door buffer

Abstract

The application discloses a universal buffer for sliding door, which comprises a base, a wheel seat, a buffer mechanism built in the wheel seat, a pulley and a balance wheel assembly rotatably connected to the wheel seat, a height adjusting mechanism for adjusting the relative height between the base and the wheel seat, and a width adjusting mechanism for adjusting the angle of the balance wheel assembly. The angle of the balance wheel assembly and the relative height between the base and the wheel seat can be adjusted respectively. The buffer can be adapted to sliding door guide rails of various specifications, and the universality of the buffer is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building hardware, in particular to a universal sliding door buffer. BACKGROUND

[0002] The sliding door buffer is suitable for buffering closing and positioning of sliding doors such as household sliding doors, wardrobe sliding doors, glass sliding doors and corridor partition sliding doors. The main function of the sliding door buffer is to buffer the impact force when the sliding door is closed or opened, thereby improving durability and reducing noise. The existing sliding door buffer is generally dedicated to a specific guide rail, and has poor universality. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a universal sliding door buffer with novel and reliable structure and strong adjustability.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a universal sliding door buffer, comprising a base, a wheel seat, a buffer mechanism built in the wheel seat, a pulley and a balance wheel assembly rotatably connected to the wheel seat, a height adjusting mechanism for adjusting the relative height between the base and the wheel seat, and a width adjusting mechanism for adjusting the angle of the balance wheel assembly.

[0005] The universal sliding door buffer of the present application has a width adjusting mechanism and a height adjusting mechanism, which can respectively adjust the angle of the balance wheel assembly and the relative height between the base and the wheel seat. Through the above, the buffer can adapt to sliding door guide rails of various specifications, and the universality of the buffer is improved.

[0006] Preferably, the height adjusting mechanism comprises inclined guide grooves respectively provided on the side portions of the base and the wheel seat, sliding points in sliding connection with the inclined guide grooves, and a height adjusting screw. The height adjusting screw is threadedly connected to the side portion of the base and presses against the wheel seat to drive the wheel seat to slide along the inclined guide groove for adjustment. By screwing the height adjusting screw, the height adjusting screw can press against the wheel seat and drive the wheel seat to slide along the inclined guide groove for adjustment. Since the inclined guide groove extends obliquely, the relative height between the wheel seat and the base will also change simultaneously when the wheel seat is slidingly adjusted, thereby achieving the effect of height adjustment. When the height of the wheel seat is adjusted to the right position, the pulley of the buffer will be aligned with the upper bottom surface of the guide rail, so that the overall height of the buffer is adapted to the guide rail.

[0007] Preferably, the balance wheel assembly comprises a swing arm and a balance wheel rotatably connected to both ends of the swing arm, the width adjusting mechanism comprises a sliding piece horizontally slidingly connected to the wheel seat, a rack formed on the sliding piece, a gear engaged with the rack and coaxially connected with the swing arm, and a width adjusting screw threadedly connected to the side of the wheel seat and pressing the sliding piece to drive the swing arm to rotate. By rotating the width adjusting screw, the width adjusting screw presses the sliding piece to drive the sliding piece to horizontally slide and adjust, and the rack on the sliding piece drives the gear to rotate and finally drives the swing arm to rotate, so as to adjust the angle of the balance wheel assembly. When the angle of the balance wheel assembly is adjusted to the right position, the balance wheels on both sides abut against the sidewalls of the guide rails, so as to adapt to the width of the guide rails.

[0008] Preferably, the buffer mechanism comprises a frame, an anti-collision sliding piece and a damper. The frame is provided with a sliding groove for guiding the sliding of the anti-collision sliding piece, and the damper is connected with the anti-collision sliding piece to buffer the impact received by the anti-collision sliding piece. When the sliding door is closed, the anti-collision structure can collide with the limiting structure on the sliding door guide rail. When the collision occurs, the damper buffers the collision and reduces the sliding speed of the sliding door, so as to achieve the buffering effect.

[0009] Preferably, the upper side of the wheel seat is provided with a horizontal guide groove, and the upper side of the sliding piece is formed with a protrusion slidingly matched with the horizontal guide groove. The horizontal guide groove and the protrusion can guide the horizontal sliding of the sliding piece.

[0010] Preferably, the side of the sliding piece is formed with a limiting portion for the width adjusting screw to press. The limiting portion can be used for the width adjusting screw to press.

[0011] Preferably, the height adjusting screw and the width adjusting screw are arranged on the same side of the base and the wheel seat. The same side arrangement of the height adjusting screw and the width adjusting screw can facilitate the installation and adjustment.

[0012] Preferably, the anti-collision sliding piece is formed with a claw portion, and the end of the sliding groove is formed with a downward bypass portion. When the anti-collision sliding piece slides to the bypass portion, the claw portion is released. The claw portion can be engaged with the limiting structure on the sliding door guide rail, so that the sliding door can realize bidirectional buffering and speed reduction. When the sliding door slides reversely, the anti-collision sliding piece can slide synchronously. When the anti-collision sliding piece slides to the bypass portion, the claw portion is released, so that the sliding of the sliding door is not hindered.

[0013] Preferably, the anti-collision sliding piece is pivotally connected with the end of the damper. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the present application.

[0015] Figure 2 It is an exploded view of the present application.

[0016] Figure 3 isometric view of the sliding member and balance wheel assembly of the present invention.

[0017] Figure 4 is a side view of the present invention.

[0018] Figure 5 is a top view of the present invention.

[0019] Figure 6 is a front view of the present invention in the lowest height state.

[0020] Figure 7 is a front view of the present invention in the highest height state.

[0021] wherein 1 - base, 2 - wheel seat, 21 - pulley, 22 - balance wheel assembly, 221 - swing arm, 222 - balance wheel, 23 - horizontal guide slot, 31 - frame body, 311 - sliding slot, 312 - detour, 32 - anti-collision sliding block, 321 - claw part, 33 - damper, 41 - oblique guide slot, 42 - sliding point, 43 - height adjusting screw, 51 - sliding member, 511 - protrusion, 512 - limiting part, 52 - rack, 53 - gear, 54 - width adjusting screw. DETAILED DESCRIPTION

[0022] The technical solutions claimed by the present invention will be further described in detail in combination with the drawings and specific embodiments.

[0023] Referring to Figures 1 to 7 the push-pull door buffer in the present embodiment includes a base 1, a wheel seat 2, a buffer mechanism built-in the wheel seat 2, a sliding member 51, a pulley 21 and a balance wheel assembly 22 arranged on the wheel seat 2, a height adjusting mechanism for adjusting the relative height between the base 1 and the wheel seat 2, and a width adjusting mechanism for adjusting the angle of the balance wheel assembly 22.

[0024] In the present embodiment, the height adjusting mechanism includes oblique guide slots 41 arranged on the side of the base 1 and the wheel seat 2 respectively, a sliding point 42 in sliding connection with the oblique guide slots 41, and a height adjusting screw 43 in threaded connection with the side of the base 1 and pressing against the wheel seat 2 to drive the wheel seat 2 to slide along the oblique guide slots 41 for adjustment.

[0025] The balance wheel assembly 22 comprises a swing arm 221 and a balance wheel 222 rotatably connected to both ends of the swing arm 221, and the width adjusting mechanism comprises a sliding piece 51 horizontally slidingly connected to the wheel base 2, a rack 52 formed on the sliding piece 51, a gear 53 engaged with the rack 52 and coaxially connected with the swing arm 221, and a width adjusting screw 54 threadedly connected to the side of the wheel base 2. The upper side of the wheel base 2 is provided with a horizontal guide groove 23, and the upper side of the sliding piece 51 is formed with a protrusion 511 slidingly matched with the horizontal guide groove 23, so that the horizontal sliding of the sliding piece 51 can be guided by the protrusion 511 and the horizontal guide groove 23, and the side of the sliding piece 51 is formed with a limiting portion 512 for being pressed by the width adjusting screw 54. The width adjusting screw 54 presses the sliding piece 51 to drive the swing arm 221 to rotate.

[0026] The height adjusting screw 43 and the width adjusting screw 54 are arranged on the same side of the base 1 and the wheel base 2, so that the installation and adjustment can be facilitated.

[0027] The buffer mechanism comprises a frame 31, an anti-collision sliding block 32 and a damper 33. The frame 31 is provided with a sliding groove 311 for guiding the sliding of the anti-collision sliding block 32, and the damper 33 is connected with the anti-collision sliding block 32 to buffer the impact received by the anti-collision sliding block 32. The anti-collision sliding block 32 is formed with a catch portion 321, and the end of the sliding groove 311 is formed with a downward bypass portion 312. When the anti-collision sliding block 32 slides to the bypass portion 312, the catch portion 321 is released. The anti-collision sliding block 32 is pivotally connected with the end of the damper 33.

[0028] The use mode of the push-pull door buffer in the embodiment is as follows:

[0029] When the height is adjusted, the height adjusting screw 43 is twisted to press the wheel base 2 and drive the wheel base 2 to slide and adjust along the inclined guide groove 41. Since the inclined guide groove 41 extends obliquely, the relative height between the wheel base 2 and the base 1 is also adjusted when the wheel base 2 slides and adjusts, so that the height adjustment effect is achieved. When the height of the wheel base 2 is adjusted to the position, the pulley 21 of the wheel base 2 is guided to the upper bottom surface of the guide rail, so that the overall height of the buffer is adapted to the guide rail.

[0030] When the width is adjusted, the width adjusting screw 54 is twisted to press the sliding piece 51 to drive the sliding piece 51 to slide and adjust horizontally, and the rack 52 on the sliding piece 51 drives the gear 53 to rotate and finally drives the swing arm 221 to rotate, so that the angle of the balance wheel assembly 22 is adjusted. When the angle of the balance wheel assembly 22 is adjusted to the position, the balance wheels 222 on both sides abut against the side walls of the guide rail, so that the width of the balance wheel assembly 22 is adapted to the guide rail.

[0031] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the present application in any form. Any person skilled in the art, without departing from the technical scheme of the present application, can make more possible changes and decorations, or modify equivalent embodiments with equivalent changes to the disclosed technical content of the present application. Therefore, any equivalent equivalent changes made in accordance with the idea of the present application without departing from the technical scheme of the present application shall be covered within the protection scope of the present application.

Claims

1. A universal sliding door buffer, characterized by: The application relates to a height-adjustable and width-adjustable trolley, which comprises a base (1), a wheel base (2), a buffer mechanism arranged in the wheel base (2), a pulley (21) and a balance wheel assembly (22) rotatably connected to the wheel base (2), a height-adjusting mechanism for adjusting the relative height between the base (1) and the wheel base (2), and a width-adjusting mechanism for adjusting the angle of the balance wheel assembly (22). The balance wheel assembly (22) comprises a swing arm (221) and balance wheels (222) rotatably connected to the two ends of the swing arm (221), the width-adjusting mechanism comprises a sliding piece (51) horizontally slidably connected to the wheel base (2), a rack (52) formed on the sliding piece (51), a gear (53) engaged with the rack (52) and coaxially connected with the swing arm (221), and a width-adjusting screw (54) threadedly connected to the side of the wheel base (2) and pressing the sliding piece (51) to drive the swing arm (221) to rotate. The buffer mechanism comprises a frame (31), an anti-collision sliding block (32) and a damper (33), the frame (31) is provided with a sliding groove (311) for guiding the sliding of the anti-collision sliding block (32), and the damper (33) is connected with the anti-collision sliding block (32) to buffer the impact received by the anti-collision sliding block (32).

2. A universal sliding door buffer according to claim 1, characterised in that: The upper side of the wheel base (2) is provided with a horizontal guide groove (23), and the upper side of the sliding piece (51) is formed with a protrusion (511) slidably matched with the horizontal guide groove (23).

3. A universal sliding door buffer according to claim 1, wherein: The side of the sliding piece (51) is formed with a limiting portion (512) for being pressed by the width-adjusting screw (54).

4. A universal sliding door buffer according to claim 1, characterized in that: The height-adjusting screw (43) and the width-adjusting screw (54) are arranged on the same side of the base (1) and the wheel base (2).

5. A universal sliding door buffer according to claim 1, wherein: The anti-collision sliding block (32) is formed with a claw portion (321), the end of the sliding groove (311) is formed with a downward bypass portion (312), and when the anti-collision sliding block (32) slides to the bypass portion (312), the claw portion (321) is released.

6. A universal sliding door buffer according to claim 1, wherein: The anti-collision sliding block (32) is pivotally connected with the end of the damper (33).

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