A sliding door pulley buffer device

Abstract

The utility model discloses a kind of push-pull door pulley buffer devices, belong to door and window fittings technical field, solve the wheel axle in the limiting groove of existing device moves up and down, its buffer effect to push-pull door is poor, lead to the problem that the vibration amplitude of push-pull door is larger when moving, including bottom plate, the bottom plate is provided with pulley, the top of bottom plate is provided with top plate, first buffer assembly and second buffer assembly are set between bottom plate and top plate, by the setting of first buffer assembly and second buffer assembly, the vibration received when pulley rolls can be buffered, when moving push-pull door, pulley will be with wheel axle as axis inside the rolling of slide rail and produce vibration, telescopic link and spring will be telescoped at this time, vibration can be buffered by the telescoping of spring, while damping block also moves inside the limiting frame, the amplitude of spring telescoping can be reduced, the purpose that vibration received by pulley is buffered is reached, and then reduce the vibration received by push-pull door.

Description

Technical Field

[0001] This utility model relates to the field of door and window accessories technology, specifically a sliding door pulley buffer device. Background Technology

[0002] A sliding door roller design is a mechanism that allows sliding doors to move smoothly along a track. In this design, a roller system is used to control the door's movement, making it easy to open and close.

[0003] A search revealed that patent application number 201920357009.6 discloses a sliding door pulley, comprising a wheel housing, a wheel axle, a pulley bracket, a pulley, and an adjusting threaded component. The pulley bracket is disposed in the inner cavity of the wheel housing, and a pair of limiting grooves are obliquely provided on the two side plates of the wheel housing. The wheel axle is disposed on the pulley bracket, and the two ends of the wheel axle are slidably disposed on the limiting grooves. The pulley is rotatably mounted in the inner cavity of the pulley bracket via the wheel axle, and the adjusting threaded component is connected to the wheel housing.

[0004] Although the sliding door pulley is designed to be slidably mounted on the limiting groove at both ends of the axle, and the pulley is mounted on the pulley bracket via the axle, allowing the pulley to move up and down and thus ensuring balanced force during movement, the axle of the sliding door pulley moves up and down within the limiting groove, resulting in poor cushioning effect on the sliding door and causing a large vibration amplitude when the sliding door moves.

[0005] Therefore, we propose a sliding door pulley buffer device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a sliding door pulley buffer device, which solves the problem that the existing device's wheel axle moves up and down in the limiting groove, resulting in poor buffering effect on the sliding door and causing large vibration amplitude when the sliding door moves.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a sliding door pulley buffer device, including a base plate, a pulley is provided below the base plate, a top plate is provided above the base plate, and a first buffer component and a second buffer component are provided between the base plate and the top plate;

[0008] The first buffer assembly includes a telescopic rod and a spring. The telescopic rod is fixedly installed on the four corners of the top surface of the base plate, and the top end of the telescopic rod is fixedly installed on the bottom surface of the top plate. The spring is sleeved on the outer surface of the telescopic rod, and the upper and lower ends of the spring are in contact with the top surface of the base plate and the bottom surface of the top plate, respectively.

[0009] The second buffer assembly includes a damping block, a limiting frame, a rectangular through slot, a limiting rod, a limiting hole, and a second nut. The damping block is fixedly installed in the middle of the bottom surface of the top plate, and the limiting frame is fixedly installed in the middle of the top surface of the bottom plate. The damping block is movably fitted inside the limiting frame.

[0010] Preferably, a rectangular through slot is formed in the middle of the front side of the damping block, and a limiting hole is formed in the middle of the front and rear sides of the limiting frame. The middle part of the limiting rod is set inside the rectangular through slot, and both ends of the limiting rod extend through the limiting hole to the outside of the limiting frame. The limiting rod can limit the damping block and the limiting frame to prevent the damping block from detaching from the limiting frame.

[0011] Preferably, the two ends of the limiting rod located outside the limiting frame are threaded with second nuts, wherein the second nuts can limit the limiting rod and prevent the limiting rod from coming out of the limiting hole.

[0012] Preferably, symmetrically distributed vertical plates are fixedly installed on the front and rear sides of the bottom surface of the base plate. The side walls of the vertical plates are provided with mounting holes. A wheel axle is movably fitted inside the mounting holes. The pulley is fixedly fitted in the middle of the wheel axle. First nuts are threaded onto both ends of the wheel axle. The pulley can be installed on the vertical plate through the wheel axle and the first nuts.

[0013] Preferably, the top surface of the top plate has four corners with fixing holes, through which bolts can be used to install the top plate onto the sliding door.

[0014] This utility model provides a sliding door pulley buffer device. It has the following beneficial effects:

[0015] This sliding door pulley buffer device, through the setting of a first buffer component and a second buffer component, can buffer the vibration received by the pulley when it rolls. When the sliding door is moved, the pulley will roll around the wheel axle inside the slide rail and generate vibration. At this time, the telescopic rod and spring will extend and retract. The extension and retraction of the spring can buffer the vibration. At the same time, the damping block will also move inside the limit frame, which can reduce the amplitude of the spring extension and retraction, thus achieving the purpose of buffering the vibration received by the pulley, thereby reducing the vibration received by the sliding door. This solves the problem that the existing device has poor buffering effect on the sliding door due to the wheel axle moving up and down in the limit groove, resulting in a large vibration amplitude when the sliding door moves. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the top surface structure of the base plate of this utility model.

[0020] In the diagram: 1. Base plate; 2. Vertical plate; 21. Mounting hole; 3. Pulley; 31. Axle; 32. First nut; 4. First buffer assembly; 41. Telescopic rod; 42. Spring; 5. Second buffer assembly; 51. Damping block; 52. Limiting frame; 53. Rectangular through slot; 54. Limiting rod; 55. Limiting hole; 56. Second nut; 6. Top plate; 61. Fixing hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] like Figure 1-4 As shown: The system includes a base plate 1, with pulleys 3 below the base plate 1 and a top plate 6 above the base plate 1. A first buffer assembly 4 and a second buffer assembly 5 are located between the base plate 1 and the top plate 6. The first buffer assembly 4 includes a telescopic rod 41 and a spring 42. The telescopic rod 41 is fixedly installed at the four corners of the top surface of the base plate 1, and its top end is fixedly installed on the bottom surface of the top plate 6. The spring 42 is sleeved on the outer surface of the telescopic rod 41, with its upper and lower ends contacting the top surface of the base plate 1 and the bottom surface of the top plate 6, respectively. The second buffer assembly 5 includes a damping block 51, a limiting frame 52, a rectangular through slot 53, a limiting rod 54, a limiting hole 55, and a second nut 56. The damping block 51 is fixedly installed... In the middle of the bottom surface of the top plate 6, the limiting frame 52 is fixedly installed in the middle of the top surface of the bottom plate 1. The damping block 51 is movably fitted inside the limiting frame 52. Through the setting of the first buffer component 4 and the second buffer component 5, the vibration received by the pulley 3 when it rolls can be buffered. When the sliding door is moved, the pulley 3 will roll inside the slide rail with the wheel axle 31 as the axis and generate vibration. At this time, the telescopic rod 41 and the spring 42 will extend and retract. The extension and retraction of the spring 42 can buffer the vibration. At the same time, the damping block 51 will also move inside the limiting frame 52, which can reduce the extension and retraction amplitude of the spring 42, thereby achieving the purpose of buffering the vibration received by the pulley 3 and reducing the vibration received by the sliding door.

[0024] Example 2:

[0025] like Figure 1-4 As shown: A rectangular through slot 53 is formed through the middle of the front side of the damping block 51. Limiting holes 55 are formed in the middle of the front and rear sides of the limiting frame 52. The middle of the limiting rod 54 is set inside the rectangular through slot 53. The two ends of the limiting rod 54 extend through the limiting holes 55 to the outside of the limiting frame 52. The two ends of the limiting rod 54 outside the limiting frame 52 are threaded with second nuts 56. The front and rear sides of the bottom surface of the base plate 1 are fixedly installed with symmetrically distributed vertical plates 2. The side walls of the vertical plates 2 are provided with mounting holes 21. A wheel axle 31 is movably fitted inside the mounting holes 21. The pulley 3 is fixedly fitted inside. The wheel axle 31 is located in the middle, and the two ends of the wheel axle 31 are threaded with first nuts 32. The top plate 6 has four fixing holes 61 at the four corners of its top surface. The damping block 51 and the limiting frame 52 can be limited by the limiting rod 54 to prevent the damping block 51 from coming off the limiting frame 52. The limiting rod 54 can be limited by the second nut 56 to prevent the limiting rod 54 from coming off the limiting hole 55. The pulley 3 can be installed on the vertical plate 2 by the wheel axle 31 and the first nut 32. The top plate 6 can be installed on the sliding door by using bolts through the fixing holes 61.

[0026] The working principle and usage process of this utility model: When using this sliding door pulley buffer device, the top plate 6 is installed at the bottom of the sliding door using bolts. When the sliding door is moved, the pulley 3 will roll inside the slide rail with the wheel axle 31 as the axis. When the pulley 3 rolls and generates vibration, the vibration can be buffered by the first buffer component 4 and the second buffer component 5. The telescopic rod 41 and the spring 42 will extend and retract. The extension and retraction of the spring 42 can buffer the vibration. At the same time, the damping block 51 will also move inside the limit frame 52 to further buffer the vibration.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sliding door pulley buffer device, characterized in that: Includes a base plate (1), with a pulley (3) provided below the base plate (1), and a top plate (6) provided above the base plate (1). A first buffer assembly (4) and a second buffer assembly (5) are provided between the base plate (1) and the top plate (6). The first buffer assembly (4) includes a telescopic rod (41) and a spring (42). The telescopic rod (41) is fixedly installed on the four corners of the top surface of the base plate (1). The top end of the telescopic rod (41) is fixedly installed on the bottom surface of the top plate (6). The spring (42) is sleeved on the outer surface of the telescopic rod (41). The upper and lower ends of the spring (42) are in contact with the top surface of the base plate (1) and the bottom surface of the top plate (6), respectively. The second buffer assembly (5) includes a damping block (51), a limiting frame (52), a rectangular through slot (53), a limiting rod (54), a limiting hole (55), and a second nut (56). The damping block (51) is fixedly installed in the middle of the bottom surface of the top plate (6), and the limiting frame (52) is fixedly installed in the middle of the top surface of the bottom plate (1). The damping block (51) is movably fitted inside the limiting frame (52).

2. The sliding door pulley buffer device according to claim 1, characterized in that: A rectangular through slot (53) is provided through the middle of the front side of the damping block (51). A limiting hole (55) is provided in the middle of the front and rear sides of the limiting frame (52). The middle part of the limiting rod (54) is set inside the rectangular through slot (53). The two ends of the limiting rod (54) extend through the limiting hole (55) to the outside of the limiting frame (52).

3. A sliding door pulley buffer device according to claim 2, characterized in that: The limiting rod (54) is fitted with second nuts (56) at both ends outside the limiting frame (52).

4. A sliding door pulley buffer device according to claim 1, characterized in that: The bottom plate (1) has symmetrically distributed vertical plates (2) fixedly installed on the front and rear sides of the bottom surface. The side wall of the vertical plate (2) has a mounting hole (21). The mounting hole (21) is fitted with a wheel axle (31). The pulley (3) is fixedly fitted in the middle of the wheel axle (31). The two ends of the wheel axle (31) are threaded with a first nut (32).

5. A sliding door pulley buffer device according to claim 1, characterized in that: Fixing holes (61) are provided at the four corners of the top surface of the top plate (6).

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