Conveniently replaceable door and window pulley

Abstract

This utility model provides a conveniently replaceable door and window pulley, relating to the field of door and window pulley technology. It includes an outer frame and a pulley bracket. A fixing plate is slidably connected to the side of the outer frame, and a fixing hole is provided through the side of the fixing plate. A concave plate is fixedly installed on the lower surface of the outer frame, and a limiting hole is provided on the inner wall of the outer frame. A protrusion is fixedly installed on the upper surface of the pulley bracket, and a movable plate is slidably connected to the inner side of the pulley bracket. This utility model, by incorporating an outer frame, pulley bracket, fixing plate, fixing hole, concave plate, limiting hole, protrusion, movable plate, mating groove, limiting rod, sliding rod, limiting spring, and pulley, enables quick assembly and disassembly of the pulley. This allows operators to maintain or replace the pulley more easily and conveniently, reducing the workload of operators and minimizing the possibility of operational errors, thereby improving the efficiency of installing and disassembling the pulley.

Description

Technical Field

[0001] This utility model relates to the field of door and window pulley technology, and in particular to a door and window pulley that is easy to replace. Background Technology

[0002] A door and window pulley is a pulley used on doors and windows. Sliding doors and windows equipped with pulleys do not take up indoor space and have an attractive appearance. After installing pulleys, the resistance of doors and windows can be reduced, making them easier to push and pull. Publication number CN213063281U discloses a door and window pulley, which includes a housing, a pulley clamping plate, and a pulley adjustment assembly. The pulley clamp is fixedly installed in the inner cavity of the outer shell by rivets. The pulley adjustment assembly includes a pair of pulleys, a bracket, an adjusting bolt, a locking nut, and a base. During installation, the door and window pulleys in this solution can be adjusted by rotating the adjusting bolt, thereby changing the installation height of the bracket on the outer shell, and thus changing the installation height of the pulleys. Once the installation height of the pulleys is adjusted to the appropriate position, the entire pulley adjustment assembly is fixedly installed on the pulley clamp, completing the installation. During use, when the installation height of the pulleys needs to be adjusted accordingly, the entire pulley adjustment assembly can be removed first. Then, by rotating the adjusting bolt, the pulleys are positioned at the appropriate height before being reinstalled, ensuring normal operation of the pulleys. Although this product allows for pulley height adjustment, it is inconvenient to disassemble the door and window pulleys. When the door and window pulleys are damaged, it is difficult to remove and replace them, making the installation and removal of the door and window pulleys cumbersome and time-consuming, thus reducing the efficiency of installation and removal and resulting in poor practicality. Improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a door and window pulley that is easy to replace, including an outer frame and a pulley frame. A fixing plate is slidably connected to the side of the outer frame, and a fixing hole is opened through the side of the fixing plate. A concave plate is fixedly installed on the lower surface of the outer frame. A limit hole is opened in the inner wall of the outer frame. A protrusion is fixedly installed on the upper surface of the pulley frame. A movable plate is slidably connected to the inner side of the pulley frame. A mating groove is opened in the inner side of the pulley frame. A limit rod is fixedly installed on the side of the movable plate. A sliding rod is fixedly installed on the inner side of the pulley frame. A limit spring is fixedly installed on the inner side of the pulley frame. A pulley is rotatably connected to the inner side of the pulley frame.

[0005] Preferably, the protrusion and the concave plate are slidably connected. Here, the outer frame is connected to the pulley frame through the protrusion and the concave plate.

[0006] Preferably, one end of the limiting spring is fixedly connected to the movable plate. Here, the reaction force generated by the limiting spring causes the movable plate to drive the limiting rod into the limiting hole.

[0007] Preferably, the movable plate is slidably connected to the mating groove, and the slide rod is slidably connected to the movable plate. Here, the slide rod makes the movable plate more stable during movement.

[0008] Preferably, the limiting rod and the limiting hole are slidably connected. Here, the limiting rod secures the pulley bracket to the outer frame.

[0009] Preferably, a mounting plate is fixedly installed on the side of the outer frame, and a threaded rod is rotatably connected inside the mounting plate. A rotating head is fixedly installed at one end of the threaded rod. A guide groove is provided on the side of the outer frame, and a connecting block is slidably connected inside the guide groove. Here, by adjusting the fixing plate, it is ensured that the outer frame can be optimally aligned with the mounting holes of door and window frames of different models and specifications, thereby facilitating the installation of the outer frame by the operator.

[0010] Preferably, the upper surface of the connecting block is fixedly connected to one side of the fixed plate, and the threaded rod is threadedly connected to the fixed plate. Here, the threaded rod enables the fixed plate to move horizontally.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by setting an outer frame, pulley bracket, fixing plate, fixing hole, concave plate, limiting hole, protrusion, moving plate, mating groove, limiting rod, sliding rod, limiting spring and pulley, the pulley can be quickly disassembled and assembled, making it easier and more convenient for operators to maintain or replace the pulley, reducing the workload of operators, reducing the possibility of operational errors, and thus improving the efficiency of installing and disassembling the pulley.

[0013] 2. In this utility model, by setting up an installation plate, threaded rod, rotating head, guide groove and connecting block, the horizontal position of the fixing plate can be adjusted, ensuring that the outer frame can be optimally connected with the installation holes of door and window frames of different models and specifications, thereby facilitating the operator to install the outer frame and improving the applicability and flexibility of the operator during installation. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a door and window pulley that is easy to replace is provided for this utility model;

[0015] Figure 2 This utility model provides a schematic diagram of the pulley frame structure for a door and window pulley that is easy to replace;

[0016] Figure 3 A bottom view of the outer frame of a door and window pulley that is easy to replace is provided for this utility model;

[0017] Figure 4 This utility model proposes a side view of a door and window pulley that is easy to replace.

[0018] Legend:

[0019] 1. Outer frame; 2. Pulley bracket; 3. Fixing plate; 4. Fixing hole; 5. Concave plate; 6. Limiting hole; 7. Protrusion; 8. Moving plate; 9. Mating groove; 10. Limiting rod; 11. Sliding rod; 12. Limiting spring; 13. Pulley; 14. Mounting plate; 15. Threaded rod; 16. Rotary head; 17. Guide groove; 18. Connecting block. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1

[0023] Please see Figure 1-3 This utility model provides a technical solution: a conveniently replaceable door and window pulley, including an outer frame 1 and a pulley frame 2. A fixing plate 3 is slidably connected to the side of the outer frame 1 to connect the outer frame 1 with the door and window frame. A fixing hole 4 is provided through the side of the fixing plate 3. A concave plate 5 is fixedly installed on the lower surface of the outer frame 1 to connect the pulley frame 2 with the outer frame 1. A limit hole 6 is provided on the inner wall of the outer frame 1. A protrusion 7 is fixedly installed on the upper surface of the pulley frame 2. A movable plate 8 is slidably connected to the inner side of the pulley frame 2 to install a limit rod 10 and a limit spring 12. A mating groove 9 is provided on the inner side of the pulley frame 2 to make the movable plate 8 move more smoothly. A limit rod 10 is fixedly installed on the side of the movable plate 8 to fix and lock the outer frame 1 and the pulley frame 2. A sliding rod 11 is fixedly installed on the inner side of the pulley frame 2 to make the movement of the movable plate 8 more stable. A limit spring 12 is fixedly installed on the inner side of the pulley frame 2. A pulley 13 is rotatably connected to the inner side of the pulley frame 2.

[0024] Example 2

[0025] Please see Figure 3-4An installation plate 14 is fixedly installed on the side of the outer frame 1 to install the threaded rod 15. The threaded rod 15 is rotatably connected inside the installation plate 14 to move the fixed plate 3. A rotating head 16 is fixedly installed at one end of the threaded rod 15 to facilitate rotation of the threaded rod 15. A guide groove 17 is provided on the side of the outer frame 1 to make the fixed plate 3 move more smoothly. A connecting block 18 is slidably connected inside the guide groove 17. The threaded rod 15 and the fixed plate 3 facilitate the installation of the outer frame 1 by the operator. One side of the connecting block 18 is fixedly connected to one side of the fixed plate 3. The threaded rod 15 is threadedly connected to the fixed plate 3, and the fixed plate 3 can be moved horizontally by the threaded rod 15.

[0026] Working principle: When installing pulley 13, first align the protrusion 7 on the upper surface of pulley frame 2 with the concave plate 5 on the lower surface of outer frame 1, and push pulley frame 2 to move. When pushing in, press the moving plate 8 inward. During the pressing process, the moving plate 8 will drive the limiting rod 10 to move. The limiting rod 10 will slide inside the pulley frame 2. At the same time, the moving plate 8 will slide on the surface of the slide rod 11 and inside the mating groove 9. The slide rod 11 improves the stability of the moving plate 8 during the movement. At the same time, the limiting spring 12 will be compressed. When pushed to a certain position, the limiting rod 10 will align with the limiting hole 6. At this point, release the pressed moving plate 8. The moving plate 8 will return to its original position under the reaction force of the limiting spring 12. The moving plate 8 will slide between the surface of the slide rod 11 and the mating groove 9. The moving plate 8 will drive the limiting rod 10 to slide into the limiting hole 6, thereby fixing and locking the pulley frame 2 and the outer frame 1, thus completing the installation of the pulley 13. When it is necessary to disassemble the pulley 13, first clamp the moving plate 8 and squeeze it. The moving plate 8 will drive the limiting rod 10 to slide out from the limiting hole 6, and then pull the pulley frame 2 outward, so that the protrusion 7 can slide out from the groove. This allows for quick installation and removal of the pulley 13, making it easier and more convenient for operators to maintain or replace the pulley 13, reducing the workload of operators and the possibility of operational errors, thereby improving the efficiency of installing and removing the pulley 13. When installing the outer frame 1 with the door and window, the rotating head 16 can be rotated, which will drive the threaded rod 15 to rotate. Because the threaded rod 15 is threadedly connected to the fixing plate 3, the fixing plate 3 can move horizontally. At the same time, the connecting block 18 installed on the upper surface of the fixing plate 3 will slide inside the guide groove 17, making the movement of the fixing plate 3 smoother. By adjusting the horizontal position of the fixing plate 3, it is convenient for operators to install the pulley frame 2 and the door and window, ensuring that the outer frame can be optimally matched with the mounting holes of different models and specifications of door and window frames, improving the applicability and flexibility of the operator during installation.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A replaceable door and window pulley comprising an outer frame (1) and a pulley carrier (2), characterized in that: A fixing plate (3) is slidably connected to the side of the outer frame (1). A fixing hole (4) is opened through the side of the fixing plate (3). A concave plate (5) is fixedly installed on the lower surface of the outer frame (1). A limiting hole (6) is opened on the inner wall of the outer frame (1). A protrusion (7) is fixedly installed on the upper surface of the pulley frame (2). A moving plate (8) is slidably connected to the inner side of the pulley frame (2). A mating groove (9) is opened on the inner side of the pulley frame (2). A limiting rod (10) is fixedly installed on the side of the moving plate (8). A sliding rod (11) is fixedly installed on the inner side of the pulley frame (2). A limiting spring (12) is fixedly installed on the inner side of the pulley frame (2). A pulley (13) is rotatably connected to the inner side of the pulley frame (2).

2. The easy replacement door and window roller according to claim 1, wherein: The protrusion (7) and the concave plate (5) are slidably connected.

3. The easy replacement door and window roller according to claim 1, wherein: One end of the limiting spring (12) is fixedly connected to the moving plate (8).

4. The easy replacement door and window roller according to claim 1, wherein: The movable plate (8) is slidably connected to the mating groove (9), and the slide rod (11) is slidably connected to the movable plate (8).

5. The easy replacement door and window roller according to claim 1, wherein: The limiting rod (10) is slidably connected to the limiting hole (6).

6. The easy replacement door and window roller according to claim 1, wherein: An mounting plate (14) is fixedly installed on the side of the outer frame (1). A threaded rod (15) is rotatably connected inside the mounting plate (14). A rotating head (16) is fixedly installed at one end of the threaded rod (15). A guide groove (17) is opened on the side of the outer frame (1). A connecting block (18) is slidably connected inside the guide groove (17).

7. The easy replacement door and window roller according to claim 6, wherein: The upper surface of the connecting block (18) is fixedly connected to one side of the fixing plate (3), and the threaded rod (15) is threadedly connected to the fixing plate (3).

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