Fast-assembly anti-derailing adjustable pulley

Abstract

The utility model relates to the technical field of pulleys, and discloses a fast-assembly anti-derailment adjustable pulley which is provided with a mounting seat, a cavity is formed in the mounting seat, a shaft wheel assembly is mounted on the upper surface of one end of the mounting seat, and an adjusting plate is arranged at the end, away from the shaft wheel assembly, of the mounting seat. The shaft wheel assembly is connected with the adjusting plate through a first adjusting part so that the shaft wheel assembly can swing left and right on the mounting base, an upper balance wheel assembly located on the side face of the mounting base is arranged between the shaft wheel assembly and the adjusting plate, and the upper balance wheel assembly is connected with the adjusting plate through a second adjusting part so that the upper balance wheel assembly can swing up and down. According to the fast-assembly anti-derailment adjustable pulley, the shaft wheel assembly can make contact with a frame groove of a door frame, a leaf door is prevented from swinging front and back in the using process, meanwhile, the upper balance wheel assembly can make contact with the upper end in the frame groove of the door frame, and therefore the leaf door is more stable, and the phenomenon that the leaf door can be easily lifted up and derailment occurs is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, and more specifically, to a quick-installation anti-derailment adjustable pulley. Background Art

[0002] The pulley-type sliding door is one of the common sliding methods. In the upper pulley structure of this sliding door, usually, the upper pulley assembly is clamped in the fan groove at the upper end of the fan door, and then the fan door is installed in the frame groove of the door frame. The wheel body of the upper pulley can be adjusted to swing, so that the upper pulley contacts the inner wall of the frame groove. When the fan door slides, the upper pulley slides on the inner wall of the frame groove, reducing noise and the phenomenon of the fan door shaking back and forth.

[0003] For example, a sliding door and window upper pulley group device disclosed in Chinese patent document CN219176130U includes an installation component. The installation component includes a transmission member that is rotatably installed on the upper pulley group device and has an upper end extending out of the upper pulley group device. The lower end of the transmission member extends out of the lower end of the upper pulley group device and is fixedly connected to an installation block. The width of the installation block is not greater than the width of the upper pulley group device, and the length of the installation block is greater than the width of the upper pulley group device. The installation block rotates with the rotation of the transmission member.

[0004] However, during the actual installation process of the fan door, after the fan door is installed in the frame groove of the door frame, since the depth of the frame groove is usually greater than the height of the upper fan frame, there is a certain distance between the upper surface of the upper pulley group device and the upper end of the inner wall of the frame groove. The existing upper pulley assembly can only adjust the left and right widths to contact the inner walls on both sides of the frame groove, and cannot adjust the height of the pulley to press the pulley against the upper end of the inner wall of the frame groove. As a result, during the use of the fan door, it is easy to be lifted, and thus the phenomenon of the fan door being lifted and derailed is likely to occur. Summary of the Utility Model

[0005] In order to overcome the defects existing in the prior art, the utility model provides a quick-installation anti-derailment adjustable pulley to solve the above problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a quick-installation anti-derailment adjustable pulley, which has an installation seat. The installation seat has a cavity inside. One end of the upper surface of the installation seat is provided with a shaft wheel assembly. One end of the installation seat far from the shaft wheel assembly is provided with an adjusting plate. The shaft wheel assembly is connected to the adjusting plate through a first adjusting member, so that the shaft wheel assembly can swing left and right on the installation seat. An upper swing wheel assembly located on the side surface of the installation seat is arranged between the shaft wheel assembly and the adjusting plate. The upper swing wheel assembly is connected to the adjusting plate through a second adjusting member, so that the upper swing wheel assembly can swing up and down.

[0007] In the above-mentioned quick-installation anti-derailment adjustable pulley, an installation plate is provided on the upper surface of one end of the installation seat. A first connection hole is opened on the installation plate. A first strip-shaped guiding hole is provided on one side of the first connection hole. The shaft wheel assembly includes a first sliding plate installed on the installation plate. The lower end of the first sliding plate is positioned and connected to the first strip-shaped guiding hole. A first strip-shaped hole corresponding to the first connection hole is opened on the first sliding plate. A first bending plate is provided at one end of the first connection hole close to the adjusting plate. The first bending plate is connected to the adjusting plate through a first adjusting member. A first pulley module that can swing left and right is provided at the upper end of the first sliding plate.

[0008] In the above-mentioned quick-installation anti-derailment adjustable pulley, a first protrusion is provided at the lower end of the first sliding plate. The first protrusion is inserted into the first strip-shaped guiding hole. Arc-shaped guiding holes distributed in a V-shape are respectively provided on both sides of the first strip-shaped hole. The first pulley module includes a first pulley base plate. First pulleys are installed on one side of both ends of the first pulley base plate. Two second protrusions corresponding to the arc-shaped guiding holes on both sides are installed on the other side of the first pulley base plate. A second connection hole is opened in the middle of the first pulley base plate. The first connection hole, the first strip-shaped hole, and the second connection hole are connected through a first connection shaft.

[0009] In the above-mentioned quick-installation anti-derailment adjustable pulley, the first adjusting member is a first adjusting screw. The first adjusting screw penetrates through the adjusting plate, and the first adjusting screw is threadedly connected to the first bending plate.

[0010] In the above-mentioned quick-installation anti-derailment adjustable pulley, the first connection shaft is hollow. A connection stud is installed through the first connection shaft. The lower end of the connection stud extends into the cavity, and a limiting piece is threadedly installed at the lower end of the connection stud. A spring sleeved on the connection stud is provided between the limiting piece and the installation plate. The limiting piece is located in the cavity.

[0011] In the above-mentioned quick-installation anti-derailment adjustable pulley, a swing wheel installation seat is provided on the side of the installation seat between the shaft wheel assembly and the adjusting plate. A third connection hole is opened on the swing wheel installation seat. A third protrusion located on the inner wall of the cavity is provided below the swing wheel installation seat. The upper swing wheel assembly includes a second sliding plate. A horizontal second strip-shaped hole is provided at the upper part of the second sliding plate, and a third strip-shaped hole is provided at the lower part. A fourth protrusion is provided between the second strip-shaped hole and the third strip-shaped hole. The second strip-shaped hole corresponds to the third connection hole, and the third protrusion corresponds to the third strip-shaped hole. A second pulley module that can swing up and down is provided on the second sliding plate. A second bending plate is provided at one end of the second sliding plate close to the adjusting plate. The second bending plate is connected to the adjusting plate through a second adjusting member.

[0012] In the above-described quick-install anti-derailment adjustable pulley, the second pulley module includes a second pulley substrate, one end of the second pulley substrate is provided with a second pulley, and on the side surface of the end of the second pulley substrate away from the second pulley, a fourth connection hole and a fourth elongated hole are respectively formed. The third connection hole, the second elongated hole, and the fourth connection hole are connected by a second connecting shaft, and the fourth protrusion is inserted into the fourth elongated hole.

[0013] In the above-described quick-install anti-derailment adjustable pulley, the second adjusting member is a second adjusting screw, the second adjusting screw is passed through the adjusting plate, and the second adjusting screw is threadedly connected to the second bent plate.

[0014] In the above-described quick-install anti-derailment adjustable pulley, an L-shaped plate is provided at the upper end of the adjusting plate, and a screw hole is formed in the L-shaped plate.

[0015] The beneficial effect of the present utility model is that by installing the mounting seat in the upper slide rail of the fan door, the axle wheel assembly can be adjusted to swing left and right through the first adjusting member on one end face of the mounting seat, so that the axle wheel assembly contacts the frame groove of the door frame, preventing the fan door from shaking back and forth during use. At the same time, the upper swing wheel assembly can also be adjusted to swing up and down through the second adjusting member, so that the upper swing wheel assembly contacts the upper end inside the frame groove of the door frame, thereby making the fan door more stable and preventing the fan door from being easily lifted and derailed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded structural schematic diagram of the adjustable pulley of the present utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the adjustable pulley of the present utility model.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the mounting seat.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the first sliding plate.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the bottom surface of the first pulley module.

[0021] Figure 6 It is an exploded three-dimensional structural schematic diagram of the second sliding plate and the second pulley module.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the second sliding plate and the second pulley module.

[0023] In the figure: mounting base 1, cavity 2, mounting plate 3, pendulum wheel mounting base 4, screw hole 5, adjusting plate 6, L-shaped plate 7, first sliding plate 8, first pulley base plate 9, first pulley 10, first connecting shaft 11, connecting stud 12, limiting piece 13, spring 14, second sliding plate 15, second pulley base plate 16, second pulley 17, second connecting shaft 18, adjusting member 19, second adjusting member 20, first connecting hole 21, first strip-shaped guiding hole 22, third protrusion 23, first strip-shaped hole 24, fourth connecting hole 25, arc-shaped guiding hole 26, first protrusion 27, first bending plate 28, second connecting hole 29, second protrusion 30, second strip-shaped hole 31, third strip-shaped hole 32, fourth protrusion 33, second bending plate 34, third connecting hole 35, fourth strip-shaped hole 36. Detailed implementation manners

[0024] The following further describes the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these implementation manners is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Combined with Figures 1 to 7 Shown is a quick-installation anti-derailment adjustable pulley, which has a mounting base 1. There is a cavity 2 inside the mounting base 1. One end upper surface of the mounting base 1 is provided with a shaft wheel assembly. One end of the mounting base 1 far from the shaft wheel assembly is provided with an adjusting plate 6. The shaft wheel assembly is connected to the adjusting plate 6 through a first adjusting member 19 so that the shaft wheel assembly can swing left and right on the mounting base 1. An upper pendulum wheel assembly located on the side surface of the mounting base 1 is arranged between the shaft wheel assembly and the adjusting plate 6. The upper pendulum wheel assembly is connected to the adjusting plate 6 through a second adjusting member 20 so that the upper pendulum wheel assembly can swing up and down. In this embodiment, by mounting the mounting base 1 in the upper slide rail of the fan door, the first adjusting member 19 on one end face of the mounting base 1 can be used to adjust the shaft wheel assembly to swing left and right, so that the shaft wheel assembly contacts the frame groove of the door frame, preventing the fan door from shaking back and forth during use. At the same time, the second adjusting member 20 can also be used to adjust the upper pendulum wheel assembly to swing up and down, so that the upper pendulum wheel assembly contacts the upper end inside the frame groove of the door frame, thereby making the fan door more stable and preventing the fan door from being easily lifted and derailed.

[0026] On the upper surface of one end of the mounting base 1 in this embodiment, a mounting plate 3 is provided. A first connection hole 21 is formed in the mounting plate 3. A first strip-shaped guiding hole 22 is provided on one side of the first connection hole 21. The shaft wheel assembly includes a first sliding plate 8 mounted on the mounting plate 3. The lower end of the first sliding plate 8 is positioned and connected to the first strip-shaped guiding hole 22. A first strip-shaped hole 24 corresponding to the first connection hole 21 is formed in the first sliding plate 8. A first bending plate 28 is provided at one end of the first connection hole 21 close to the adjusting plate 6. The first bending plate 28 is connected to the adjusting plate 6 through a first adjusting member 19. The upper end of the first sliding plate 8 is provided with a first pulley module that can swing left and right; wherein, the first adjusting member 19 in this embodiment is a first adjusting screw. The first adjusting screw is inserted into the adjusting plate 6, and the first adjusting screw is threadedly connected to the first bending plate 28. By turning the first adjusting screw, the first bending plate 28 moves on the first adjusting screw, causing the first sliding plate 8 to move along the direction of the first strip-shaped guiding hole 22, so that the first pulley module swings on the first sliding plate 8.

[0027] Specifically, a first protrusion 27 is provided at the lower end of the first sliding plate 8 in this embodiment. The first protrusion 27 is inserted into the first strip-shaped guiding hole 22. Arc-shaped guiding holes 26 distributed in a shape of an eight are respectively provided on both sides of the first strip-shaped hole 24. The first pulley module includes a first pulley base plate 9. First pulleys 10 are installed on one side of each of the two ends of the first pulley base plate 9. On the other side of the first pulley base plate 9, two second protrusions 30 corresponding to the arc-shaped guiding holes 26 on both sides are installed. A second connection hole 29 is formed in the middle of the first pulley base plate 9. The first connection hole 21, the first strip-shaped hole 24, and the second connection hole 29 are connected through a first connection shaft 11. During the movement of the first sliding plate 8, the arc-shaped guiding holes 26 distributed in a shape of an eight drive the second protrusions 30 on the first pulley base plate 9, causing the first pulley base plate 9 to swing around the first connection shaft 11, so that the first pulleys 10 at both ends of the first pulley base plate 9 contact the inner walls on both sides of the frame groove of the door frame.

[0028] The first connection shaft 11 in this embodiment is hollow. A connection stud 12 is inserted and installed in the first connection shaft 11. The lower end of the connection stud 12 extends into the cavity 2, and a limiting piece 13 is threadedly installed at the lower end of the connection stud 12. A spring 14 sleeved on the connection stud 12 is provided between the limiting piece 13 and the mounting plate 3. The limiting piece 13 is located in the cavity 2. The upper end surface of the connection stud 12 is stuck at the upper end of the first connection shaft 11. By turning the connection stud 12, the swing of the limiting piece 13 can be adjusted. Thus, after the mounting base 1 is installed in the fan groove at the upper end of the fan frame, by adjusting the swing of the limiting piece 13, the limiting piece 13 can be stuck on the fan groove, thereby completing the fixation of the mounting base 1, and the disassembly and assembly are more convenient.

[0029] In this embodiment, a balance wheel mounting seat 4 is provided between the shaft wheel assembly and the adjustment plate 6, and is located on the side of the mounting seat 1. A third connecting hole 35 is provided on the balance wheel mounting seat 4. A third protrusion 23 is provided below the balance wheel mounting seat 4 and is located on the inner wall of the cavity 2. The upper balance wheel assembly includes a second sliding plate 15. The upper part of the second sliding plate 15 is provided with a second horizontal strip hole 31, and the lower part is provided with a third strip hole 32. The second strip hole 31 and the third strip hole 32 are arranged horizontally, and a gap is provided between the second strip hole 31 and the third strip hole 32. The fourth protrusion 33 and the second strip-shaped hole 31 correspond to the third connecting hole 35, and the third protrusion 23 corresponds to the third strip-shaped hole 32. The second sliding plate 15 is provided with a second pulley module that can swing up and down. A second bent plate 34 is provided at the end of the second sliding plate 15 near the adjustment plate 6. The second bent plate 34 is connected to the adjustment plate 6 via a second adjusting member 20. The second adjusting member 20 is a second adjusting screw that passes through the adjustment plate 6 and is threadedly connected to the second bent plate 34. By twisting the second adjusting screw, the second sliding plate 15 can be moved along the length of the third strip-shaped hole 32, thereby adjusting the second pulley module to swing up and down, making adjustment simple and convenient.

[0030] Specifically, the second pulley module includes a second pulley base plate 16, with a second pulley 17 mounted on one end of the second pulley base plate 16. A fourth connecting hole 25 and a fourth bar-shaped hole 36 are respectively formed on the side surface of the second pulley base plate 16 away from the second pulley 17. The third connecting hole 35, the second bar-shaped hole 31, and the fourth connecting hole 25 are connected by a second connecting shaft 18, and the fourth protrusion 33 is inserted into the fourth bar-shaped hole 36. During the movement of the second sliding plate 15, the fourth protrusion 33 drives the second pulley base plate 16 to swing up and down around the second connecting shaft 18. This makes the overall structure more stable during adjustment and prevents the pulley from shaking on the mounting base 1.

[0031] It is worth noting that the upper end of the adjustment plate 6 of this embodiment is provided with an L-shaped plate 7, and the L-shaped plate 7 is provided with screw holes 5. The L-shaped plate 7 can be used to install other accessories.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A quick-installation anti-derailment adjustable pulley, which has a mounting base (1), and the mounting base (1) has a cavity (2) inside, and is characterized in that, On the upper surface of one end of the mounting base (1), a shaft wheel assembly is installed. At one end of the mounting base (1) away from the shaft wheel assembly, an adjusting plate (6) is provided. The shaft wheel assembly is connected to the adjusting plate (6) through a first adjusting member (19) so that the shaft wheel assembly can swing left and right on the mounting base (1). An upper swing wheel assembly located on the side of the mounting base (1) is provided between the shaft wheel assembly and the adjusting plate (6). The upper swing wheel assembly is connected to the adjusting plate (6) through a second adjusting member (20) so that the upper swing wheel assembly can swing up and down.

2. The quick-installation anti-derailment adjustable pulley according to claim 1, characterized in that On the upper surface of one end of the mounting base (1), a mounting plate (3) is provided. A first connection hole (21) is formed in the mounting plate (3). On one side of the first connection hole (21), a first strip-shaped guiding hole (22) is provided. The shaft wheel assembly includes a first sliding plate (8) mounted on the mounting plate (3). The lower end of the first sliding plate (8) is positioned and connected to the first strip-shaped guiding hole (22). A first strip-shaped hole (24) corresponding to the first connection hole (21) is formed in the first sliding plate (8). At one end of the first connection hole (21) close to the adjusting plate (6), a first bending plate (28) is provided. The first bending plate (28) is connected to the adjusting plate (6) through a first adjusting member (19). At the upper end of the first sliding plate (8), a first pulley module that can swing left and right is provided.

3. The quick-installation anti-derailment adjustable pulley according to claim 2, characterized in that, At the lower end of the first sliding plate (8), a first protrusion (27) is provided. The first protrusion (27) is inserted into the first strip-shaped guiding hole (22). Arc-shaped guiding holes (26) distributed in a V-shaped pattern are respectively provided on both sides of the first strip-shaped hole (24). The first pulley module includes a first pulley substrate (9). On one side of each end of the first pulley substrate (9), a first pulley (10) is installed. On the other side of the first pulley substrate (9), two second protrusions (30) corresponding to the arc-shaped guiding holes (26) on both sides are installed respectively. A second connection hole (29) is formed in the middle of the first pulley substrate (9). The first connection hole (21), the first strip-shaped hole (24), and the second connection hole (29) are connected through a first connection shaft (11).

4. The quick-installation anti-derailment adjustable pulley according to claim 3, characterized in that, The first adjusting member (19) is a first adjusting screw. The first adjusting screw passes through the adjusting plate (6), and the first adjusting screw is threadedly connected to the first bending plate (28).

5. The quick-installation anti-derailment adjustable pulley according to claim 3, characterized in that, The first connection shaft (11) is hollow. A connection stud (12) is installed through the first connection shaft (11). The lower end of the connection stud (12) extends into the cavity (2), and a limiting piece (13) is threadedly installed at the lower end of the connection stud (12). A spring (14) sleeving the connection stud (12) is provided between the limiting piece (13) and the mounting plate (3). The limiting piece (13) is located in the cavity (2).

6. The quick-installation anti-derailment adjustable pulley according to claim 1, wherein A pendulum wheel mounting base (4) located on the side of the mounting base (1) is provided between the shaft wheel assembly and the adjusting plate (6). A third connection hole (35) is formed in the pendulum wheel mounting base (4). A third protrusion (23) located on the inner wall of the cavity (2) is provided below the pendulum wheel mounting base (4). The upper pendulum wheel assembly includes a second sliding plate (15). A transverse second strip-shaped hole (31) is provided in the upper part of the second sliding plate (15), and a third strip-shaped hole (32) is provided in the lower part. A fourth protrusion (33) is provided between the second strip-shaped hole (31) and the third strip-shaped hole (32). The second strip-shaped hole (31) corresponds to the third connection hole (35), and the third protrusion (23) corresponds to the third strip-shaped hole (32). A second pulley module capable of swinging up and down is provided on the second sliding plate (15). A second bending plate (34) is provided at one end of the second sliding plate (15) close to the adjusting plate (6). The second bending plate (34) is connected to the adjusting plate (6) through a second adjusting member (20).

7. The quick-installation anti-derailment adjustable pulley according to claim 6, wherein The second pulley module includes a second pulley base plate (16). A second pulley (17) is installed at one end of the second pulley base plate (16). A fourth connection hole (25) and a fourth strip-shaped hole (36) are respectively formed in the side surface of the end of the second pulley base plate (16) far from the second pulley (17). The third connection hole (35), the second strip-shaped hole (31), and the fourth connection hole (25) are connected through a second connecting shaft (18). The fourth protrusion (33) is inserted into the fourth strip-shaped hole (36).

8. The quick-installation anti-derailment adjustable pulley according to claim 6, characterized in that, The second adjusting member (20) is a second adjusting screw. The second adjusting screw penetrates through the adjusting plate (6), and the second adjusting screw is threadedly connected to the second bending plate (34).

9. The quick-installation anti-derailment adjustable pulley according to claim 1, wherein An L-shaped plate (7) is provided at the upper end of the adjusting plate (6). A screw hole (5) is formed in the L-shaped plate (7).

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