Compactly mounted pulley block

Abstract

The utility model discloses a compactly-installed pulley block which comprises a pulley seat and a fixed hanging piece installed on the top of a sliding door, a plurality of pulleys are installed on the pulley seat, an installation cavity with an upward opening 13 is formed in the pulley seat, a rotatable adjusting nut is installed in the installation cavity, and a worm wheel face is arranged on the top face of the adjusting nut. An adjusting worm in transmission connection with the worm wheel surface is also mounted in the pulley seat; the fixed hanging piece is of a sheet structure, the rotating screw is arranged on the fixed hanging piece and is in threaded connection with the adjusting nut, and the adjusting worm and the adjusting nut are both installed on the pulley base, so that an adjusting base mechanism in a traditional structure is removed, only the fixed hanging piece fixed to the sliding door is reserved, and the fixed hanging piece is fixed to the sliding door relative to the adjusting base mechanism. And the thickness can be greatly reduced, so that the size of the door frame profile is not increased on the basis of reducing the gap between the sliding door and the sliding rail, and the pursuit of modern people for extremely simple styles is better met.

Description

Technical Field

[0001] The utility model relates to a sliding door, in particular to a pulley block with compact installation. Background Art

[0002] Existing sliding doors generally have a pulley block installed on the top of the glass door, which is hung on the slide rail through the pulley block to achieve the effect of sliding the door open. Due to factors such as installation error and adjustment, the heights of the doors on the left and right sides may be different. Therefore, it is necessary to adjust the distance between the pulley block and the glass door to make the glass door flush. The existing pulley block generally includes a pulley member slidably installed on the slide rail and an adjusting seat installed on the top surface of the door. The pulley member and the adjusting seat are connected by a rotating screw, and an adjusting nut that cooperates with the rotating screw is arranged on the pulley member. When the rotating screw is rotated, the positions of the pulley member and the adjusting seat are changed, thereby playing a role in adjusting the sliding door. A worm gear surface is arranged at the bottom of the rotating screw, and an adjusting worm that cooperates with the worm gear surface transmission is installed on the side wall of the adjusting seat. The rotating screw can be rotated by rotating the adjusting worm.

[0003] There are two conventional installation structures for the adjustment seat. One is to install it directly on the top of the sliding door (i.e., the top of the glass door frame profile). In this structure, the gap between the sliding door and the slide rail is larger, which is the height of the adjustment seat itself and the exposed length of the rotating screw (the two ends of the rotating screw are respectively installed in the pulley member and the adjustment seat. In order to ensure that there is any adjustable margin, the length of the rotating screw needs to be appropriately increased during the design. Therefore, there will be a small section of the rotating screw exposed between the pulley member and the adjustment seat); the other is to provide a slot for accommodating the adjustment seat on the profile at the top of the sliding door. Although this can reduce the gap between the sliding door and the slide rail, it will increase the size of the profile, thereby greatly increasing the area occupied by the profile on the glass door. Both structures do not conform to the current aesthetics. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a pulley block with compact installation.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A compactly installed pulley block comprises a pulley seat and a fixed hanger installed on the top of a sliding door, wherein a plurality of pulleys are installed on the pulley seat, and an installation cavity opening upward is provided on the pulley seat, a rotatable adjusting nut is installed in the installation cavity, a worm gear surface is provided on the top surface of the adjusting nut, and an adjusting worm gear drivingly connected to the worm gear surface is also installed in the pulley seat; the fixed hanger is a thin sheet structure, and a rotating screw is provided on the fixed hanger, and the rotating screw is threadedly connected to the adjusting nut.

[0007] The pulley seat is provided with an installation channel communicated with the installation cavity, and the adjusting worm is rotatably installed in the installation channel.

[0008] The installation channel is inclined downward from the installation cavity toward the outside.

[0009] The pulley seat is provided with an internal threaded portion communicated with the installation channel, and an anti-loosening screw is installed on the internal thread of the internal threaded portion, and the end of the anti-loosening screw is in contact with the adjusting worm.

[0010] The thickness of the fixing hanger is 1-4 mm.

[0011] The fixing hanger is provided with a plurality of arranged internal thread holes.

[0012] The rotating screw and the fixing hanger are an integrated structure.

[0013] A thrust ball bearing is installed between the bottom of the adjusting nut and the bottom of the installation cavity.

[0014] The beneficial effects of the utility model are as follows: an installation cavity with an opening upward is provided on the pulley seat, a rotatable adjusting nut is installed in the installation cavity, a worm gear surface is provided on the top surface of the adjusting nut, and an adjusting worm gear transmission-connected with the worm gear surface is also installed in the pulley seat; the fixed hanger is a thin sheet structure, a rotating screw is provided on the fixed hanger, the rotating screw is threadedly connected with the adjusting nut, and the adjusting worm gear and the adjusting nut are both installed on the pulley seat, thereby removing the adjusting seat mechanism in the traditional structure, and only retaining the fixed hanger fixed to the sliding door, and the thickness of the fixed hanger relative to the adjusting seat mechanism can be greatly reduced, thereby achieving the goal of reducing the gap between the sliding door and the sliding rail without increasing the size of the door frame profile, which is more in line with modern people's pursuit of minimalist style. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 Is a cross-sectional view of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the pulley seat;

[0020] Figure 5 It is a disassembly schematic diagram of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0023] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0024] Reference Figure 1-5 , a compactly installed pulley block comprises a pulley seat 1 and a fixed hanger 4 installed on the top of the sliding door, a plurality of pulleys 2 are installed on the pulley seat 1, and a mounting cavity 3 with an opening upward is provided on the pulley seat 1, a rotatable adjusting nut 5 is installed in the mounting cavity 3, and a worm gear surface 6 is provided on the top surface of the adjusting nut 5, and an adjusting worm 7 connected to the worm gear surface 6 by transmission is also installed in the pulley seat 1; the fixed hanger 4 is a thin sheet structure, a rotating screw 9 is provided on the fixed hanger 4, and the rotating screw 9 is threadedly connected with the adjusting nut 5, and the adjusting worm and the adjusting nut are both installed on the pulley seat, thereby removing the adjusting seat mechanism in the traditional structure, and only retaining the fixed hanger fixed to the sliding door, and the thickness of the fixed hanger relative to the adjusting seat mechanism can be greatly reduced, thereby achieving the reduction of the gap between the sliding door and the slide rail without increasing the size of the door frame profile, which is more in line with the modern people's pursuit of minimalist style.

[0025] The pulley seat 1 is provided with an installation channel 10 communicating with the installation cavity 3 , and the adjusting worm 7 is rotatably installed in the installation channel 10 .

[0026] The installation channel 10 is inclined downward from the installation cavity 3 toward the outside.

[0027] The pulley seat 1 is provided with an internal threaded portion 11 communicating with the installation channel 10 , and a locking screw 12 is installed on the internal threaded portion 11 , and an end of the locking screw 12 is in contact with the adjusting worm 7 .

[0028] The adjusting worm 7 is provided with an annular groove, and the end of the anti-loosening screw 12 is inserted into the annular groove, which can prevent the adjusting worm 7 from withdrawing.

[0029] The bottom of the annular groove is provided with a plurality of semicircular recessed holes arranged in the circumferential direction, and the end of the anti-loosening screw 12 is provided with a convex point corresponding to the semicircular recessed hole. The convex point is inserted into the semicircular recessed hole to prevent the adjusting worm 7 from rotating, thereby preventing the adjusting worm 7 from rotating, and further preventing the sliding door from changing in height during daily use.

[0030] The thickness of the fixed hanger 4 is 1-4 mm, and a plurality of arranged internal threaded holes are arranged on the fixed hanger 4. The fixed hanger 4 can be directly fixed on the profile of the sliding door by means of mounting screws, or a corresponding insertion groove can be arranged on the profile of the sliding door. After the fixed hanger 4 is inserted into the insertion groove, it can be further fixed by means of mounting screws, so that the installation is more stable.

[0031] The rotating screw 9 and the fixing hanger 4 are an integral structure.

[0032] A thrust ball bearing 8 is installed between the bottom of the adjusting nut 5 and the bottom of the mounting cavity 3, thereby effectively reducing the friction between the adjusting nut and the bottom of the mounting cavity, and can greatly reduce the force required for adjustment, thereby solving the problem of missing teeth and slipping between the adjusting worm 7 and the worm wheel surface 6.

[0033] The bottom of the slide rail is provided with an opening 13 for providing space for the rotating screw 9 to move (the pulley seat 1 and the pulley 2 are installed inside the slide rail, and the rotating screw 9 extends out through the opening 13 and is connected to the fixed hanger 4), and one end of the opening 13 is provided with an exit portion 14 with a width greater than the maximum width of the product. During normal use, the pulley 2 cannot slide to the exit portion 14 to prevent the product from falling out directly. It can only slide to the exit portion 14 when the product needs to be replaced (the installation position of the product can be adjusted so that when the product is installed on the sliding door, when the sliding door slides to contact the door frame, the product is just 1-2 mm away from the exit portion 14 (such as Figure 5 As shown in A in the figure, that is, in daily use, no matter how the door body is slid, the product will not slide to the outlet portion 14, and this can only be done by removing the product from the sliding door). A cover plate is installed at the outlet portion 14 to shield the outlet portion 14.

[0034] When replacing this product, first remove this product from the sliding door, then remove the cover plate, and slide this product to the exit portion 14. At this time, the pulley 2 at one end is located at the exit portion 14, and the pulley 2 at the other end is located outside the exit portion 14 (such as Figure 5 As shown in B in FIG. 1 ), the pulley 2 located on the outlet portion 14 will fall (as shown in FIG. 1 ). Figure 5 As shown in C in the figure), continue to push the product toward the outlet 14, so that the pulley 2 at the other end also slides to the outlet 14, and the product can be completely removed (as shown in the figure). Figure 5 as shown in D in the figure).

[0035] The adjusting nut 5 is rotatable relative to the pulley seat 1, so the fixing hanger 4 is also rotatable relative to the pulley seat 1. During the removal process, the position of the fixing hanger 4 can be adjusted to avoid jamming between the fixing hanger 4 and the slide rail, which makes it impossible to remove the product. In addition, the width of the fixing hanger 4 can be smaller than the opening 13, and the fixing hanger 4 can be directly inserted into the slide rail through the opening 13, providing a larger space and further facilitating the removal of the product.

[0036] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compact pulley assembly, comprising a pulley seat (1) and a fixed hanger (4) mounted on the top of a sliding door, wherein a plurality of pulleys (2) are mounted on the pulley seat (1), characterized in that The pulley seat (1) is provided with a mounting cavity (3) with an opening facing upward, a rotatable adjusting nut (5) is mounted in the mounting cavity (3), a worm gear surface (6) is provided on the top surface of the adjusting nut (5), and an adjusting worm (7) drivingly connected to the worm gear surface (6) is also mounted in the pulley seat (1); the fixed hanger (4) is a thin sheet structure, a rotating screw (9) is provided on the fixed hanger (4), and the rotating screw (9) is threadedly connected to the adjusting nut (5).

2. The compact pulley assembly according to claim 1, characterized in that The pulley seat (1) is provided with a mounting channel (10) which is in communication with the mounting cavity (3), and the adjusting worm (7) is rotatably mounted in the mounting channel (10).

3. The compact pulley assembly according to claim 2, characterized in that The installation channel (10) is in a structure that is inclined downward from the installation cavity (3) toward the outside.

4. The compact pulley assembly according to claim 2, characterized in that The pulley seat (1) is provided with an internal threaded portion (11) which is in communication with the mounting channel (10), and a locking screw (12) is mounted on the internal thread of the internal threaded portion (11), and an end of the locking screw (12) is in contact with the adjusting worm (7).

5. The compact pulley assembly according to claim 1, characterized in that The thickness of the fixing hanger (4) is 1-4 mm.

6. The compact pulley assembly according to claim 1, characterized in that The fixing hanger (4) is provided with a plurality of arranged internal thread holes.

7. The compact pulley assembly according to claim 1, characterized in that The rotating screw (9) and the fixing hanger (4) are an integral structure.

8. The compact pulley assembly according to claim 1, characterized in that A thrust ball bearing (8) is installed between the bottom of the adjusting nut (5) and the bottom of the installation cavity (3).

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