Adjustable parallelism pulley for doors and windows
Through the combination of pulleys, tracks and guidance mechanisms, the problem of inaccurate adjustment of traditional doors and windows is solved, and the smooth opening and height adjustment of doors and windows is achieved, which improves service life and stability.
Patent Information
- Application Number
- CN202422564047.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Traditional door and window structures lack precise adjustment and guidance structure, resulting in insufficient adjustment, large friction, severe wear, affecting parallelism and smooth operation.
The pulley, track design and guidance mechanism are adopted to adjust the parallelism and height adjustment of doors and windows by adjusting the screw and oblique track grooves, and combine the U-shaped groove structure of the guide rod and the shell to provide stability and protection.
It realizes smooth opening and height adjustment of doors and windows, reduces friction and wear, improves service life and operating stability, and reduces installation and maintenance costs.
Smart Images
Figure CN223269824U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of doors and windows, and particularly relates to a pulley for doors and windows which can be adjusted to be parallel. Background Art
[0002] The adjustment mechanism in traditional door and window structures may rely solely on simple screw fixation or block movement, lacking precise adjustment methods and resulting in less precise adjustment. These screw-based or block-based adjustment mechanisms often lack diverse guide and support structures, such as inclined track grooves and guide rods, resulting in less stable movement during adjustment.
[0003] Due to the lack of fine adjustment and guiding structures, traditional doors and windows may generate greater friction during the opening and closing process. Long-term use will cause component wear, further affecting the parallelism and smooth operation of the doors and windows.
[0004] In order to effectively solve the shortcomings of the above-mentioned traditional structure, a pulley, track design and guide mechanism are proposed to provide a more precise and smooth adjustment method, so that users can easily adjust the parallelism of doors and windows, ensure the stability and durability of the operation of doors and windows, and greatly improve the user experience of adjustable parallel pulleys for doors and windows. Summary of the Invention
[0005] The present invention aims to solve the technical problem that it is generally difficult to adjust the parallelism of doors and windows in the above-mentioned prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] An adjustable parallel pulley for doors and windows, comprising an inner shell A and an inner shell B; two symmetrically arranged pulleys are rotatably connected to the inner shell A; an adjusting screw threadedly connected to an adjusting nut is provided on the inner side of the inner shell A; an elliptical track groove A is provided on the inner shell A for the adjustment screw to pass through; and an inclined track groove is provided on the inner shell A and extends between the two pulleys.
[0008] The inner shell B is sleeved on the outer side of the inner shell A, and an adjusting nut fixedly connected to the adjusting screw is provided on the outer side of the inner shell B. An elliptical track groove B is provided on the inner shell B to fit the adjusting screw. A guide rod is fixed on the inner shell B, which passes through the inner shell A and the inclined track groove.
[0009] By screwing the adjusting nut and the adjusting screw, the inner shell A is guided to slide along the inner wall surface of the inner shell B to adjust the parallelism, and the guide rod slides along the inclined track groove to adjust the height of the inner shell A to rise or fall.
[0010] The tightness can be adjusted by adjusting the screw. Tightening the screw can straighten the inner shell A to make it parallel. When the parallelism is adjusted, the doors and windows can be smooth, and the inclined track groove plays the role of raising or lowering the height. This parallel adjustable door and window pulley design can achieve smooth opening and height adjustment of the doors and windows by adjusting the screw and the inclined track groove.
[0011] Preferably, the outer shell is a U-shaped groove structure and is sleeved on the outer side of the inner shell A and the inner shell B. The U-shaped groove structure can better protect the internal pulley and adjustment mechanism.
[0012] Preferably, one side of the outer shell is provided with a pin rod A which passes through the inner shell B and is located below the adjusting screw. The pin rod A is located below the adjusting screw to increase the stability of the structure and prevent the inner shell B from rotating or shifting during the adjustment process.
[0013] Preferably, a pin rod B is provided on one side of the outer shell away from the pin rod A and passes through the inner shell B. The arrangement of the pin rod B is similar to that of the pin rod A, and provides additional support and positioning.
[0014] Preferably, U-shaped openings are provided at the front and rear ends of the housing to facilitate installation and maintenance of internal components.
[0015] Preferably, the U-shaped notches on the left and right ends of the housing are provided with mounting holes that penetrate the housing. The provision of the mounting holes allows the housing to be conveniently fixed to a door or window frame or other structure, providing a stable installation method while also facilitating adjustment and replacement.
[0016] Preferably, the inner shell A slides along the guide plate on the inner bottom wall of the outer shell when sliding along the inner wall of the inner shell B. The provision of the guide plate provides additional guidance and support, ensuring the stability and accuracy of the inner shell A during the sliding process.
[0017] Compared with the prior art, the technical effects and advantages of the utility model are:
[0018] This parallel adjustable door and window pulley can precisely adjust the parallelism of the inner shell A by screwing the adjusting nut and the adjusting screw, ensuring the parallelism and stability of the doors and windows during operation. The movement of the inner shell A can be controlled by the threaded connection of the adjusting screw and the adjusting nut, thereby adjusting the parallelism of the doors and windows. This ensures that the doors and windows will not twist during the opening and closing process, improving the operating efficiency and user experience of the doors and windows. The guide rod slides along the inclined track groove, which serves to adjust the height by raising or lowering, ensuring the smooth movement of the inner shell A, reducing friction and wear, and extending the service life of the pulley system. This parallel adjustable door and window pulley design achieves smooth opening and height adjustment of doors and windows through the adjusting screw and the inclined track groove;
[0019] The design of the U-shaped opening and mounting holes on the pulley for adjustable parallel doors and windows makes the installation and maintenance of internal components more convenient, reducing installation and maintenance costs. The U-shaped groove structure of the outer shell provides good protection for the internal pulley and adjustment mechanism, while increasing structural support and improving overall stability and durability. The guide rods between the inner shells A and B and the guide plates on the inner bottom wall of the outer shell provide guidance and support, ensuring the smoothness and precision of the inner shell A during the adjustment process, reducing vibration and noise during operation, and increasing the service life of doors and windows. The provision of pin rods A and pin rods B increases the stability of the structure and prevents the inner shell B from rotating or shifting during the adjustment process. It prevents structural damage caused by unbalanced forces and maintains the balance and stability of the entire pulley system. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of the present utility model.
[0021] In the figure: 1. Inner shell A; 2. Inner shell B; 3. Outer shell; 4. Guide plate; 5. Pulley; 6. Adjusting nut; 7. Adjusting screw; 8. Elliptical track groove A; 9. Inclined track groove; 10. Adjusting nut; 11. Elliptical track groove B; 12. Guide rod; 13. Pin rod A; 14. Pin rod B; 15. U-shaped opening; 16. U-shaped notch; 17. Mounting hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] The following is combined with Figure 1 To further explain this application,
[0024] An embodiment of the present application discloses an adjustable parallel pulley for doors and windows, including an inner shell A1, an inner shell B2 and an outer shell 3. The outer shell 3 is a U-shaped groove structure and is sleeved on the outer side surfaces of the inner shell A1 and the inner shell B2; the U-shaped groove structure can better protect the internal pulley 5 and the adjustment mechanism, while also providing structural support for the internal components, thereby enhancing the overall stability and durability.
[0025] Two symmetrically arranged pulleys 5 are rotatably connected to the inner housing A1. An adjusting screw 7 is provided on the inner side of the inner housing A1 and is threadedly connected to an adjusting nut 6. An elliptical track groove A8 is provided on the inner housing A1 to accommodate the adjusting screw 7. An inclined track groove 9 is provided on the inner housing A1 and extends through the inner housing A1 and is located between the two pulleys 5.
[0026] The inner shell B2 is sleeved on the outer side of the inner shell A1, and an adjusting nut 10 fixedly connected to the adjusting screw 7 is provided on the outer side of the inner shell B2. An elliptical track groove B11 is formed on the inner shell B2 to fit the adjusting screw 7. A guide rod 12 is fixed to the inner shell B2, which passes through the inner shell A1 and the inclined track groove 9.
[0027] By turning the adjusting nut 10 and adjusting screw 7, the inner shell A1 is guided and slid along the inner wall of the inner shell B2 for parallel adjustment. The guide rod 12 slides along the inclined track groove 9, thereby adjusting the height of the inner shell A1. As the inner shell A1 slides along the inner wall of the inner shell B2, it is guided by the guide plate 4 on the inner bottom wall of the outer shell 3. The guide plate 4 provides additional guidance and support, ensuring smooth and precise sliding of the inner shell A1. This helps reduce wear, extend the service life of the pulley 5 system, and improve the efficiency and comfort of door and window opening and closing.
[0028] Inside inner shell A1, an adjustment screw 7 is threadedly connected to an adjustment nut 6. When the adjustment nut 10 is turned, the adjustment screw 7 rotates accordingly. Tightening the adjustment nut 10 moves the adjustment screw 7 toward inner shell B2, thereby tightening inner shell A1 and keeping it straight and parallel. This design prevents twisting during opening and closing, ensuring smooth operation.
[0029] Inner housing A1 is provided with an inclined track groove 9. Guide rod 12 passes through this groove and inner housing A1 and is secured to inner housing B2. As adjustment screw 7 rotates, guide rod 12 slides along the inclined track groove 9, causing inner housing A1 to rise or fall accordingly, thereby adjusting the height of the door or window. The inclined track groove 9 ensures smooth movement of guide rod 12, avoiding the jerking or jerking that can occur in traditional designs.
[0030] In short, adjusting the tension of the adjustment screw 7 ensures parallelism and stability when opening and closing the door and window. Tightening the adjustment screw 7 straightens the inner shell A1, maintaining the parallelism of the door and window, while the inclined track groove 9 allows for height adjustment. These two combined factors make the operation of the door and window smoother and more reliable. This structural design solves the difficulty of adjusting traditional doors and windows, improving the overall performance and user experience of the door and window.
[0031] One side of the outer shell 3 is penetrated by a pin rod A13 that passes through the inner shell B2 and is located below the adjusting screw 7. The pin rod A13 is located below the adjusting screw 7, which can increase the stability of the structure and prevent the inner shell B2 from rotating or shifting during the adjustment process. The setting of the pin rod A13 can also serve as a positioning element to help maintain the relative positions of the inner shell A1 and the inner shell B2, ensuring the accuracy of the adjustment process. The side of the outer shell 3 away from the pin rod A13 is penetrated by a pin rod B14 that passes through the inner shell B2. The setting of the pin rod B14 is similar to that of the pin rod A13, providing additional support and positioning, which helps to maintain the balance and stability of the entire pulley 5 system, especially during the adjustment process, and can prevent structural damage caused by unbalanced forces.
[0032] U-shaped openings 15 are formed at the front and rear ends of the outer shell 3. The U-shaped openings 15 facilitate installation and maintenance of internal components, making assembly of the inner shell A1 and the inner shell B2 easier, and also facilitate inspection and maintenance of the internal structure when necessary.
[0033] Mounting holes 17 that penetrate the housing 3 are defined in the U-shaped notches 16 formed at the left and right ends of the housing 3 .
[0034] The provision of the mounting holes 17 enables the housing 3 to be conveniently fixed to a door or window frame or other structure, providing a stable mounting method while also facilitating adjustment and replacement.
[0035] This parallel-adjustable pulley for doors and windows allows the inner shell A1 to slide along the inner shell B2 to adjust parallelism by turning the nut and screw. The guide rod 12 slides along the inclined track groove 9 to achieve height adjustment. This structure improves the stability, durability, and user experience of doors and windows by precisely adjusting the screw rod 7 and the inclined track groove 9. The provision of pins A13 and B enhances structural stability, while the U-shaped opening 15 and mounting holes 17 facilitate installation and maintenance.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A pulley for doors and windows with adjustable parallelism, characterized in that: include: An inner shell A (1) is rotatably connected to two symmetrically arranged pulleys (5), an inner side of the inner shell A (1) is provided with an adjusting screw (7) threadedly connected to the adjusting nut (6), an elliptical track groove A (8) is provided on the inner shell A (1) to fit the adjusting screw (7), and an inclined track groove (9) is provided on the inner shell A (1) and is located between the two pulleys (5); An inner shell B (2) is sleeved on the outer side of the inner shell A (1), and an adjusting nut (10) fixedly connected to the adjusting screw (7) is provided on the outer side of the inner shell B (2), an elliptical track groove B (11) for fitting the adjusting screw (7) is provided on the inner shell B (2), and a guide rod (12) is fixed on the inner shell B (2) and is provided through the inner shell A (1) and the inclined track groove (9); By screwing the adjusting nut (10) and the adjusting screw (7), the inner shell A (1) is guided to slide along the inner wall surface of the inner shell B (2) to adjust the parallelism, and the guide rod (12) is guided to slide along the inclined track groove (9), thereby adjusting the height of the inner shell A (1) to rise or fall.
2. The parallel adjustable door and window pulley according to claim 1, characterized in that: It also includes an outer shell (3), which is a U-shaped groove structure and is sleeved on the outer side surfaces of the inner shell A (1) and the inner shell B (2).
3. The parallel adjustable door and window pulley according to claim 2, characterized in that: A pin rod A (13) is provided on one side of the outer shell (3), passing through the inner shell B (2) and located below the adjusting screw rod (7).
4. The parallel adjustable door and window pulley according to claim 3, characterized in that: A pin rod B (14) is provided on a side of the outer shell (3) away from the pin rod A (13) and passes through the inner shell B (2).
5. The parallel adjustable door and window pulley according to claim 2, characterized in that: U-shaped openings (15) are provided at the front and rear ends of the housing (3).
6. The parallel adjustable door and window pulley according to claim 1, characterized in that: Mounting holes (17) that penetrate the shell (3) are provided in the U-shaped notches (16) provided at the left and right ends of the shell (3).
7. The parallel adjustable door and window pulley according to claim 2, characterized in that: When the inner shell A (1) slides along the inner wall surface of the inner shell B (2), it slides along the guide plate (4) on the inner bottom wall surface of the outer shell (3).