Split type self-balancing sliding door hanging pulley and damper

Abstract

The invention discloses a split type self-balancing sliding door hanging pulley and a damper. According to the technical scheme, mounting grooves are formed in the two sides of the middle base, first screw holes communicated with the mounting grooves are formed in the bottom of the middle base, supporting points are arranged above the mounting grooves, and magnets are arranged at the two ends of the mounting grooves; the wheel set comprises a wheel carrier and idler wheels arranged at the two ends of the wheel carrier, a fulcrum positioning groove matched with the fulcrum is formed in the upper portion of the wheel carrier, a first positioning groove is formed in the lower portion of the wheel carrier, magnetic attraction pieces capable of being attracted by the magnets are arranged at the two ends of the wheel carrier, a flange and a first positioning part arranged at the bottom of the flange are arranged at the outer end of the wheel carrier, and a second positioning part is arranged at the inner end of the wheel carrier; and the positioning screw rod is arranged in the first screw hole of the middle seat and is in positioning fit with the first positioning groove of the wheel carrier.

Description

Technical Field

[0001] The present invention belongs to the field of hardware fittings, and particularly relates to a door hanging pulley. Background Art

[0002] Pulleys are usually provided at the ends of sliding door dampers (buffers) so that they can be slidably installed in the door frame guide rails. The disadvantages of traditional sliding door dampers are as follows: 1. It is necessary to disassemble the door frame guide rail to achieve disassembly and assembly, or an installation opening needs to be opened on the door frame guide rail to achieve disassembly and assembly, which brings inconvenience to disassembly and assembly and affects the aesthetics of the door frame; 2. When the door frame guide rail is uneven, traditional pulleys will not automatically adjust the angle, resulting in phenomena such as unsmooth sliding or jamming of the sliding door; 3. Self-lubrication cannot be carried out.

[0003] Regarding problem 1: The applicant has applied for a Chinese invention patent with the name "A Split-type Hanging Pulley and a Sliding Door Buffer" and the patent number "202220796009.8". The technical solution adopted includes: The wheel frame is composed of a detachable first half wheel frame and a second half wheel frame. Independent wheel axles are provided at both ends of the first half wheel frame and the second half wheel frame, and the wheel is axially connected to the independent wheel axles. However, due to the narrow space of the door frame guide rail, users cannot see the relative positions of the two wheel frames, resulting in very difficult positioning and assembly of the two. Regarding problem 2: The applicant has applied for a Chinese invention patent with the name "A Self-balancing Hanging Door Buffer" and the patent number "202120823615.X". The technical solution adopted includes: a wheel frame, a first front roller group provided at the front end of the wheel frame, a second front roller group provided at the rear end of the wheel frame, a self-balancing block provided in the wheel frame, and a self-balancing block cover plate covering the wheel frame. However, the disadvantages of this self-balancing are: complex structure, troublesome assembly, and the swing angle of the roller cannot be adjusted. In addition, it is very difficult to effectively combine traditional split-type hanging pulleys and self-balancing hanging pulleys. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a split-type self-balancing sliding door hanging pulley and damper.

[0005] To solve the above problems, the technical solutions adopted by the present invention include: An intermediate seat, with installation grooves provided on both sides thereof and a first screw hole communicating with the installation grooves at the bottom. A fulcrum is provided above the installation grooves, and magnets are provided at both ends; A wheel set, including a wheel frame and rollers provided at both ends of the wheel frame. A fulcrum positioning groove adapted to the fulcrum is provided above the wheel frame, a first positioning groove is provided below, magnetic attracting members that can be attracted by the magnets are provided at both ends, a stop edge is provided at the outer end of the wheel frame, a first positioning portion is provided at the bottom of the stop edge, and a second positioning portion is provided at the inner end; A positioning screw, provided in the first screw hole of the intermediate seat and in positioning cooperation with the first positioning groove of the wheel frame; The bottom of the outer end of the middle seat is provided with a second positioning groove that is positioned and matched with the first positioning part, and the inner end is provided with a third positioning groove that is positioned and matched with the second positioning part.

[0006] The roller is connected to the wheel frame through a first pin shaft, and the first pin shaft serves as a magnetic part that can be attracted by the magnet.

[0007] A lubricating box is provided on the side of the wheel frame, and an orbital brush capable of sucking and releasing lubricating oil is provided in the lubricating box. The front end of the orbital brush is provided with a brush head that presses against the sliding door track.

[0008] The fulcrum is integrally formed at the center above the installation groove and is arc-shaped. The fulcrum positioning groove is provided at the center above the wheel frame and is arc-shaped.

[0009] The bottom of the middle seat is provided with a second screw hole, and a relief groove is provided on the wheel frame corresponding to the upper part of the second screw hole.

[0010] The inner end of the middle seat is provided with a connecting part connected to the damper, and at least two second pin shafts are provided on the connecting part.

[0011] The lubricating box includes a box body and a box cover covering the box body. The box body is integrally formed on the wheel frame and is located between the rollers. A fastening screw connected to the box cover is provided on the inner side of the box body, and an oil storage tank is provided between the box body and the orbital brush.

[0012] A clearance for the up and down swing of the wheel frame is provided between the wheel frame and the installation groove, between the first positioning part and the second positioning groove, and between the second positioning part and the third positioning groove.

[0013] The wheel set is horizontally inserted into the installation groove from the side of the middle seat. When the magnetic part approaches the magnet, the wheel set is lifted and the fulcrum is positioned in the fulcrum positioning groove.

[0014] A damper includes a damper body, and one end of the damper body is installed with the split type self-balancing sliding door hanging pulley described in any one of the above.

[0015] The advantages of the split type self-balancing sliding door hanging pulley of the present invention are as follows: 1. It can realize the automatic positioning of the wheel set, making the assembly simpler; 2. The split type structure and self-balancing are effectively combined, and the overall structure is simpler and more reliable; 3. The swing angle of the roller can be adjusted; 4. The roller can be automatically lubricated.

[0016] The present invention will be further described below with reference to the accompanying drawings of the specification. Description of the Drawings

[0017] Figure 1It is a schematic structural diagram of the split self-balancing sliding door hanging pulley of the present invention; Figure 2 It is a side view of the split self-balancing sliding door hanging pulley of the present invention; Figure 3 It is an exploded view of the split self-balancing sliding door hanging pulley of the present invention; Figure 4 It is Figure 2 a cross-sectional view taken along the A-A direction of Figure 5 It is Figure 2 a cross-sectional view taken along the B-B direction of Figure 6 It is a schematic structural diagram of the middle seat of the present invention; Figure 7 It is a schematic structural diagram of the wheel set of the present invention; Figure 8 It is a schematic structural diagram of the lubricating box of the present invention; Figure 9 It is a schematic structural diagram of the damper of the present invention. Detailed implementation manners Embodiment 1:

[0018] Referring to Figure 1-8As shown in the figure, the split self-balancing sliding door hanging pulley of the present invention includes an intermediate seat 1, a wheel set 2, and a positioning screw 3. Installation grooves 4 are provided on both sides of the intermediate seat 1, and a first screw hole 5 communicating with the installation groove 4 is provided at the bottom. A fulcrum 6 is provided above the installation groove 4, and magnets 7 are provided at both ends of the installation groove 4. The wheel set 2 includes a wheel frame 8 and rollers 9 provided at both ends of the wheel frame 8. A fulcrum positioning groove 10 adapted to the fulcrum 6 is provided above the wheel frame 8. Through the cooperation of the fulcrum 6 and the fulcrum positioning groove 10, both ends of the wheel set 2 can swing up and down. A first positioning groove 11 is provided below the wheel frame 8, and magnetic attraction members that can be attracted by the magnets 7 are provided at both ends of the wheel frame 8. A retaining edge 13 and a first positioning portion 14 provided at the bottom of the retaining edge 13 are provided at the outer end of the wheel frame 8, and a second positioning portion 27 is provided at the inner end of the wheel frame 8. The positioning screw 3 is arranged in the first screw hole 5 of the intermediate seat 1 and is in positioning cooperation with the first positioning groove 11 of the wheel frame 8. A second positioning groove 15 for positioning cooperation with the first positioning portion 14 is provided at the bottom of the outer end of the intermediate seat 1, and a third positioning groove 28 for positioning cooperation with the second positioning portion 27 is provided at the inner end of the intermediate seat 1. During assembly, the wheel set 2 is horizontally inserted into the installation groove 4 from the side of the intermediate seat 1. When the magnetic attraction member approaches the magnet 7 (at this time, the front end of the first positioning portion 14 has been embedded in the second positioning groove 15, and the front end of the second positioning portion 27 has been embedded in the third positioning groove), under the action of the suction force of the magnet 7, the wheel set 2 is lifted, and the fulcrum 6 is positioned in the fulcrum positioning groove 10 to achieve automatic positioning. Finally, the positioning screw 3 is screwed upward so that its top is embedded in the first positioning groove 11 to achieve rapid installation of the wheel set 2. In addition, by adjusting the distance between the positioning screw 3 and the first positioning groove 11, the swing angle of the roller 9 can be adjusted.

[0019] Preferably, the roller 9 is connected to the wheel frame 8 through a first pin shaft 12, and the first pin shaft 12 serves as a magnetic attraction member that can be attracted by the magnet 7. The first pin shaft 12 is usually made of iron to improve the magnetic attraction effect, or the first pin shaft 12 can be magnetized. Using the first pin shaft 12 as the magnetic attraction member can make full use of existing components to simplify assembly and save costs. According to needs, the magnetic attraction member can also be a separate magnet or iron block.

[0020] Preferably, a lubricating box 16 is provided on the side surface of the wheel frame 8, and an orbital brush 17 and lubricating oil capable of absorbing and releasing lubricating oil are provided in the lubricating box 16. A brush head 18 pressing on the sliding door track is provided at the front end of the orbital brush 17. When the sliding door hanging pulley slides in the door frame guide rail, the brush head 18 can remove dust in the door frame guide rail and release lubricating oil at the same time, making the sliding of the sliding door hanging pulley smoother. The orbital brush 17 is usually made of wear-resistant sponge or a porous polymer material.

[0021] Preferably, the fulcrum 6 is integrally formed at the center above the mounting groove 4 and is arc-shaped. The fulcrum positioning groove 10 is provided at the center above the wheel carrier 8 and is also arc-shaped. This is to improve the stability and balance ability of the swing of the wheel carrier 8.

[0022] Preferably, a second screw hole 19 is provided at the bottom of the intermediate seat 1, and a relief groove 20 is provided above the second screw hole 19 corresponding to the wheel carrier 8. The sliding door hanging pulley can be connected to the sliding door mounting box 33 through the second screw hole 19.

[0023] Preferably, a connecting portion 21 connected to the damper is provided at the inner end of the intermediate seat 1, and at least two second pin shafts 22 are provided on the connecting portion 21. This is to achieve a stable connection between the sliding door hanging pulley and the damper.

[0024] Preferably, the lubricating box 16 includes a box body 23 and a box cover 24 covering the box body 23. The box body 23 is integrally formed on the wheel carrier 8 and is located between the rollers 9. A fastening screw 25 connected to the box cover 24 is provided inside the box body 23. After assembly, the fastening screw 25 abuts against the intermediate seat 1 and is not easily detached. A fuel storage tank 26 is provided between the box body 23 and the track brush 17. With the above structure, the rollers 9 can be lubricated when sliding left and right.

[0025] Preferably, a clearance gap 29, 30, 31 for the up and down swing of the wheel carrier 8 is provided between the wheel carrier 8 and the mounting groove 4, between the first positioning portion 14 and the second positioning groove 15, and between the second positioning portion 27 and the third positioning groove 28. This is to ensure that the wheel carrier 8 has space to swing. Embodiment 2:

[0026] Referring to FIG. 9, a damper of the present invention includes a damper body 32, and one end of the damper body 32 is installed with the split type self-balancing sliding door hanging pulley a described in Embodiment 1. Specifically: the connecting portion 21 of the intermediate seat 1 is embedded into the end of the housing of the damper body 32, and then fixed by connecting through the second pin shaft 22. The installation sequence of this damper in the door frame guide rail is: first connect the intermediate seat 1 with the damper body 32, then install the damper body 32 with the intermediate seat 1 into the door frame guide rail, then horizontally insert the wheel set 2 into the mounting groove 4 of the intermediate seat 1 from the side of the intermediate seat 1, and finally screw on the positioning screw 3.

[0027] As described above, there is no restriction in any form on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications within the scope of the technical solution of the present invention to equivalent embodiments of equivalent changes by using the disclosed structure and technical content. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A split-type self-balancing sliding door hanging pulley, characterized in that, Comprising: An intermediate seat (1), with mounting grooves (4) provided on both sides thereof and a first screw hole (5) at the bottom communicating with the mounting groove (4). Above the mounting groove (4), there is a fulcrum (6), and magnets (7) are provided at both ends; A wheel set (2), including a wheel frame (8) and rollers (9) provided at both ends of the wheel frame (8). Above the wheel frame (8), there is a fulcrum positioning groove (10) adapted to the fulcrum (6), a first positioning groove (11) is provided below, and magnetic members that can be attracted by the magnets (7) are provided at both ends. At the outer end of the wheel frame (8), there is a flange (13) and a first positioning portion (14) provided at the bottom of the flange (13), and a second positioning portion (27) is provided at the inner end; A positioning screw (3) is arranged in the first screw hole (5) of the intermediate seat (1) and is in positioning cooperation with the first positioning groove (11) of the wheel frame (8); At the bottom of the outer end of the intermediate seat (1), there is a second positioning groove (15) in positioning cooperation with the first positioning portion (14), and at the inner end, there is a third positioning groove (28) in positioning cooperation with the second positioning portion (27).

2. The split self-balancing sliding door hanging pulley according to claim 1, wherein: The roller (9) is connected to the wheel frame (8) through a first pin shaft (12), and the first pin shaft (12) serves as a magnetic member that can be attracted by the magnet (7).

3. The split self-balancing sliding door hanging pulley according to claim 1, characterized in that: On the side surface of the wheel frame (8), there is a lubricating box (16), and in the lubricating box (16), there is an orbital brush (17) that can absorb and release lubricating oil. At the front end of the orbital brush (17), there is a brush head (18) pressing on the sliding door track.

4. The split self-balancing sliding door hanging pulley according to claim 1, characterized in that: The fulcrum (6) is integrally formed at the center above the mounting groove (4) and is arc-shaped, and the fulcrum positioning groove (10) is provided at the center above the wheel frame (8) and is arc-shaped.

5. The split self-balancing sliding door hanging pulley according to claim 1, wherein: At the bottom of the intermediate seat (1), there is a second screw hole (19), and a relief groove (20) is provided above the wheel frame (8) corresponding to the second screw hole (19).

6. The split self-balancing sliding door hanging pulley according to claim 1, wherein: At the inner end of the intermediate seat (1), there is a connecting portion (21) connected to a damper, and at least two second pin shafts (22) are provided on the connecting portion (21).

7. The split self-balancing sliding door hanging pulley according to claim 3, characterized in that: The lubricating box (16) includes a box body (23) and a box cover (24) covering the box body (23). The box body (23) is integrally formed on the wheel frame (8) and is located between the rollers (9). Inside the box body (23), there are fastening screws (25) connecting to the box cover (24), and an oil storage tank (26) is provided between the box body (23) and the orbital brush (17).

8. The split self-balancing sliding door hanging pulley according to claim 1, wherein: Between the wheel frame (8) and the mounting groove (4), between the first positioning portion (14) and the second positioning groove (15), and between the second positioning portion (27) and the third positioning groove (28), there are clearance gaps (29, 30, 31) for the wheel frame (8) to swing up and down.

9. The split self-balancing sliding door hanging pulley according to claim 1, wherein: The wheel set (2) is horizontally inserted into the mounting groove (4) from the side of the intermediate seat (1). When the magnetic member approaches the magnet (7), the wheel set (2) is attracted and lifted, and the fulcrum (6) is positioned in the fulcrum positioning groove (10).

10. A damper, comprising a damper body (32), characterized in that: One end of the damper body (32) is installed with the split self-balancing sliding door hanging pulley (a) according to any one of claims 1-9.

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