Pulley assembly capable of automatically braking

Abstract

The utility model relates to a pulley assembly capable of braking automatically, which comprises a sliding seat, a sliding part capable of sliding on a guide sliding groove on a track is arranged on the sliding seat, a vertically communicated mounting through hole is arranged on the sliding seat, and a braking part capable of penetrating through the mounting through hole and moving up and down relative to the sliding seat is arranged on the sliding seat. The end, downwards penetrating out of the mounting through hole, of the braking piece is provided with a hanging part used for hooking a curtain, the end, upwards penetrating out of the mounting through hole, of the braking piece is provided with a braking end capable of abutting against the guide sliding groove for braking, and an elastic piece capable of elastically pressing the braking piece upwards to enable the braking piece to abut against the guide sliding groove for braking is arranged between the braking piece and the sliding base. The sliding wheel assembly is simple in structure, the brake part abuts against the guide sliding groove for braking, and therefore the sliding wheel assembly cannot slide easily, and use is convenient.

Description

[Technical Field]

[0001] This utility model relates to a pulley assembly for curtains. [Background Technology]

[0002] Curtains are usually installed on tracks with pulleys. The curtains move along the tracks by pulling the pulleys. The existing pulleys are freely set on the tracks, meaning they can slide with just a light touch. When we need to close the curtains completely, we usually have to pull them with a little more force. Because the pulleys have low friction, if we pull the curtains on both sides, the pulleys can easily knock open, allowing light to leak through. Therefore, we usually have to open and close the curtains multiple times, which is inconvenient. [Utility Model Content]

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pulley assembly that is simple in structure, easy to use, and capable of automatic braking.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An automatically braking pulley assembly includes a sliding seat, a sliding part that can slide on a guide groove on a track, a vertically connected mounting hole on the sliding seat, a braking element that passes through the mounting hole and can move vertically relative to the sliding seat, a hanging part for hooking a curtain at one end of the braking element extending downward through the mounting hole, and a braking end that can abut against the top of the guide groove for braking at one end of the braking element and the sliding seat, and an elastic element between the braking element and the sliding seat that can spring the braking element upward to abut against the top of the guide groove for braking.

[0006] The pulley assembly capable of automatic braking as described above is characterized in that: the left and right ends of the sliding seat are respectively provided with shoulders, the left and right ends of the braking member are respectively provided with pressing ends that are spaced apart from the shoulders, and the elastic member is disposed between the shoulders and the pressing ends.

[0007] The pulley assembly capable of automatic braking as described above is characterized in that: the sliding part consists of pulleys respectively located at the front and rear ends of the middle part of the sliding seat.

[0008] The pulley assembly capable of automatic braking as described above is characterized in that: the sliding seat has a guide sleeve on the lower side of the shoulder that is fitted over the lower end of the brake element, the lower end of the guide sleeve has a clearance hole, the mounting through hole passes downward through the guide sleeve, and the suspension part is a hanging hole exposed at the clearance hole.

[0009] The pulley assembly capable of automatic braking as described above is characterized in that: the top of the sliding seat is provided with a support end, the upper end of the braking member is provided with a positioning end that is spaced apart from the support end, the elastic member is provided between the support end and the positioning end, and the braking end is the top end of the positioning end.

[0010] The pulley assembly capable of automatic braking as described above is characterized in that: the sliding part is a circular protrusion that bulges outward and whose end face presses against the guide groove.

[0011] The pulley assembly capable of automatic braking as described above is characterized in that: the braking element is cylindrical, the lower end of the braking element is provided with a lifting hole, and the suspension part is a hanging ring that hangs on the lifting hole.

[0012] The beneficial effects of this utility model are as follows: The pulley assembly consists of a sliding seat and a braking component. When there is no tension, the braking end of the braking component abuts against the top of the guide groove under the support of the elastic component, thereby exerting a certain clamping force and giving the pulley assembly a certain braking force. When the curtain needs to be pulled, the braking component is pulled down, the braking end separates from the guide groove, and the braking force is released, so the pulley can slide easily. When it moves into place, the curtain is released, and the braking component returns to its original position under the action of the elastic component, thereby achieving braking. This reduces the effect of inertial force, prevents the curtain from moving too far, eliminates the need to pull the curtain multiple times, and is convenient to use. [Attached Image Description]

[0013] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0014] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0015] Figure 3 This is a reference diagram showing the usage state of Embodiment 1 of this utility model;

[0016] Figure 4 This is a perspective view of Embodiment 2 of the present invention;

[0017] Figure 5 This is an exploded view of Embodiment 2 of this utility model;

[0018] Figure 6 This is a reference diagram showing the usage state of Embodiment 2 of this utility model.

Detailed Implementation Methods

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 3As shown in Embodiment 1, an automatically braking pulley assembly includes a sliding seat 1. The sliding seat 1 is provided with a sliding part 2 that can slide on a guide groove 20 on a track 10. In this embodiment, the sliding part 2 consists of pulleys located at the front and rear ends of the middle of the sliding seat 1. In this embodiment, the front, rear, left, and right are relative positions, which is convenient for description. Figure 1 In terms of the state of the sliding seat 1, the sliding seat 1 is provided with a vertically connected mounting hole 11. The sliding seat 1 is provided with a brake member 3 that passes through the mounting hole 11 and can move vertically relative to the sliding seat 1. The brake member 3 can move vertically. One end of the brake member 3 that extends downward through the mounting hole 11 is provided with a hanging part 31 for hooking a curtain. The curtain is installed on the hanging part 31. The other end of the brake member 3 that extends upward through the mounting hole 11 is provided with a brake end 32 that can abut against the top of the guide groove 20 and brake. The brake end 32 presses against the inner wall of the guide groove 20. Between the brake member 3 and the sliding seat 1, there is an elastic member 4 that can spring the brake member 3 upward so that the brake member 3 abuts against the top of the guide groove 20 and brakes. The elastic member 4 is a spring. When the brake member 3 is pulled downward, the spring is compressed, and the brake end 32 separates from the inner wall of the guide groove 20. When the brake member 3 is released, the spring springs the brake member 3 upward, and the brake end 32 abuts against the inner wall of the guide groove 20.

[0021] For ease of installation, the sliding seat 1 has shoulders 12 at both ends, and the brake element 3 has pressing ends 33 at both ends, spaced apart from the shoulders 12. An elastic element 4 is positioned between the shoulders 12 and the pressing ends 33. Both the shoulders 12 and the pressing ends 33 have protrusions. The elastic element 4 is a spring, and the protrusions on the shoulders 12 and the pressing ends 33 are inserted into the ends of the spring. The sliding seat 1 has a guide sleeve 13 on the lower side of the shoulders 12, which fits over the lower end of the brake element 3. In this embodiment, the brake element 3 is a T-shaped piece. The lower end of the guide sleeve 13 has a clearance hole 14, through which the mounting through hole 11 passes downwards, ensuring smooth sliding of the brake element 3. The suspension part 31 is a hanging hole exposed at the clearance hole 14.

[0022] Example 2, as Figure 4-6 As shown, the difference from Embodiment 1 lies in the structural form of the sliding seat 1 and the brake element 3. Specifically, in this embodiment, the top of the sliding seat 1 is provided with a support end 15, which is a horizontal end. The upper end of the brake element 3 is provided with a positioning end 34 that is spaced apart from the support end 15. The elastic element 4 is located between the support end 15 and the positioning end 34. The brake element 3 is cylindrical, and the elastic element 4 is a spring that is sleeved on the outside of the brake element 3. The braking end 32 is the top end of the positioning end 34. The sliding part 2 is a circular protrusion that bulges outward and whose end face presses against the guide groove 20. The sliding part 2 is a sliding friction. The lower end of the brake element 3 is provided with a lifting hole 35, and the suspension part 31 is a hanging ring that hangs on the lifting hole 35.

Claims

1. A self-braking pulley assembly characterized by: The utility model provides a window curtain hooking device, which comprises a sliding seat (1), wherein the sliding seat (1) is provided with a sliding part (2) capable of sliding on a guide sliding groove (20) on a track (10); the sliding seat (1) is provided with an installation through hole (11) in communication with the upper and lower parts; the installation through hole (11) is capable of penetrating a brake part (3) capable of moving up and down relative to the sliding seat (1); the brake part (3) is provided with a hanging part (31) for hooking a window curtain at one end penetrating out of the installation through hole (11) downward; the brake part (3) is provided with a brake end (32) capable of abutting on the guide sliding groove (20) to brake at one end penetrating out of the installation through hole (11) upward; the brake part (3) and the sliding seat (1) are provided with an elastic part (4) capable of pressing the brake part (3) upward to make the brake part (3) abut on the guide sliding groove (20) to brake.

2. A self-braking pulley assembly according to claim 1, wherein: The left and right ends of the sliding seat (1) are respectively provided with a shoulder (12); the left and right ends of the brake part (3) are respectively provided with a pressing end (33) arranged opposite to the shoulder (12); and the elastic part (4) is arranged between the shoulder (12) and the pressing end (33).

3. A self-braking pulley assembly according to claim 2, wherein: The sliding part (2) is a pulley arranged at the front and rear ends of the middle part of the sliding seat (1).

4. A self-braking pulley assembly according to claim 2, wherein: The sliding seat (1) is provided with a guide sleeve (13) sleeved outside the lower end of the brake part (3) at the lower side of the shoulder (12); the lower end of the guide sleeve (13) is provided with an emptying hole (14); the installation through hole (11) penetrates through the guide sleeve (13) downward; and the hanging part (31) is a hanging hole exposed at the emptying hole (14).

5. A self-braking pulley assembly as defined in claim 1, wherein: The top of the sliding seat (1) is provided with a supporting end (15); the upper end of the brake part (3) is provided with a positioning end (34) arranged opposite to the supporting end (15); the elastic part (4) is arranged between the supporting end (15) and the positioning end (34); and the brake end (32) is the top end of the positioning end (34).

6. A self-braking pulley assembly as defined in claim 1, wherein: The sliding part (2) is a circular protrusion with an outwardly convex end surface abutting on the guide sliding groove (20).

7. A self-braking pulley assembly as defined in claim 1 wherein: The brake part (3) is in a cylindrical shape; the lower end of the brake part (3) is provided with a lifting hole (35); and the hanging part (31) is a hanging ring hung on the lifting hole (35).

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