Height-adjustable pulley mechanism and heavy lifting door and window

Abstract

This invention discloses a pulley mechanism and a heavy-duty lifting door / window. The heavy-duty lifting door / window includes a door / window body and a pulley mechanism. The pulley mechanism includes a baffle, two pulleys, and an adjustment component. At least one of the two pulleys is configured as a movable wheel. The adjustment component can adjust the vertical height of the movable wheel on the baffle. In actual use, there are unavoidable dimensional errors in the slide rails of the pulley mechanism and the profiles of the door / window body. After long-term use, the profiles will also deform due to gravity. By adjusting the height of the pulley mechanism and the door / window body through the adjustment component, the distance between the door / window body and the casing structure in the horizontal and vertical directions can be adjusted, ensuring that the door / window body and the casing structure fit tightly and have good airtightness. At the same time, if the door / window body is equipped with a lock box, it can also ensure the normal locking and unlocking of the lock box, providing users with a good user experience.

Description

Technical Field

[0001] This invention relates to the field of building door and window technology, and in particular to an adjustable height pulley mechanism and a heavy-duty lifting door and window. Background Technology

[0002] Sliding doors and windows have the advantages of not taking up indoor space, beautiful appearance, economical price, and good airtightness. With the improvement of people's quality of life and changes in aesthetic style, people have begun to pursue the maximization of visual space, and the types of sliding doors and windows have gradually become more diversified. Heavy-duty lifting doors and windows are one type of sliding doors and windows.

[0003] The sliding rails of heavy-duty lifting doors and windows, as well as the profiles of the door and window body, inevitably have dimensional errors during actual use. After long-term use, they will deform due to gravity. When the vertical dimension of the pulley mechanism at the bottom of the door and window body changes, the horizontal dimension of the door and window body will also change accordingly. The sealing performance between the side of the door and window body and the casing structure in the direction of pulley movement will decrease. If there is a lock box on the door and window body, it may also cause the lock box to fail to lock properly, which seriously affects the user experience. Summary of the Invention

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a pulley mechanism that can adjust the height in the vertical direction, thereby allowing the door and window body to be adjusted in size in the horizontal direction, and a heavy-duty lifting door and window having the pulley mechanism.

[0005] The technical solution adopted by this invention to solve its problem is:

[0006] In a first aspect, the present invention provides a height-adjustable pulley mechanism, comprising:

[0007] baffle;

[0008] Rotate the two pulleys connected to the baffle;

[0009] An adjustment component, which is movably connected to the baffle;

[0010] At least one of the two pulleys is configured as a movable wheel, the axis of the movable wheel is provided with a movable shaft, the baffle is provided with a first movable shaft hole, and the extension direction of the first movable shaft hole is configured to be vertical.

[0011] The movable shaft passes through the first movable shaft hole and the adjustment component. The adjustment component adjusts the position of the movable shaft in the first movable shaft hole to adjust the position of the movable wheel relative to the baffle in the vertical direction.

[0012] With this configuration, the adjustment component can adjust the position of the movable shaft within the first movable shaft hole, i.e., adjust the vertical position of the movable shaft, and thus adjust the vertical position of the movable wheel. This makes the height of the pulley assembly in this invention adjustable. In practical applications, by adjusting the height of the movable wheel, the height and levelness of the entire pulley mechanism can be adjusted, ensuring that the door and window body installed on the pulley mechanism fits tightly with the casing structure in both the horizontal and vertical directions, guaranteeing good airtightness. At the same time, if the door and window body is equipped with a lock box, it can also ensure the normal locking and unlocking of the lock box, providing users with a good user experience.

[0013] According to a preferred embodiment, one of the two pulleys is configured as a movable wheel and the other as a fixed wheel, the fixed wheel being rotatably connected to the baffle.

[0014] By setting it up this way, the height of the movable wheel can be adjusted while the height of the fixed wheel remains constant, and the overall height of the pulley mechanism changes with the height of the movable wheel.

[0015] According to a preferred embodiment, the adjustment assembly includes an end seat, the end seat having a second movable shaft hole, the angle between the extension direction of the second movable shaft hole and the horizontal direction being configured to be greater than 0° and less than 90°.

[0016] The movable shaft passes through the first movable shaft hole and the second movable shaft hole.

[0017] With this configuration, the direction of the second movable shaft hole is set to be oblique. As the movable shaft moves along the second movable shaft hole, it simultaneously achieves changes in both the horizontal and vertical directions. Since the extension direction of the first movable shaft hole is vertical, by adjusting the position of the movable shaft relative to the second movable shaft hole, the position of the movable wheel relative to the height of the first movable shaft hole can be adjusted, thus converting horizontal movement into vertical movement and facilitating operation.

[0018] According to a preferred embodiment, one of the baffle and the end seat is provided with a guide protrusion, and the other is provided with a guide groove at a corresponding position. The guide groove extends in a horizontal direction, and the guide protrusion is slidably connected to the guide groove.

[0019] With this configuration, the movement direction of the end seat and the baffle is limited to the horizontal direction. The horizontal movement of the end seat is converted into the vertical movement of the movable wheel.

[0020] According to a preferred embodiment, it further includes a locking block connected to the baffle;

[0021] The adjustment assembly further includes an adjustment pin, which passes through the end seat and the locking block.

[0022] With this setup, after the adjusting pin and the locking block are positioned, the movable wheel is positioned in the first movable shaft hole, maintaining the smoothness of the pulley mechanism's movement.

[0023] According to a preferred embodiment, the adjusting assembly further includes a locking buckle, the engaging block is configured to pass through, the locking buckle is located on the side of the engaging block away from the adjusting pin, and the adjusting pin is rotatably connected to and positioned on the locking buckle.

[0024] According to a preferred embodiment, it further includes a fastening sleeve for positioning the movable shaft, which is sleeved on the end of the movable shaft and abuts against the end seat.

[0025] According to a preferred embodiment, the adjusting assembly further includes an anti-loosening element, which is sleeved on the adjusting pin.

[0026] According to a preferred embodiment, the system further includes a support member and a guide wheel. The baffles are arranged in pairs on both sides of the support member, and the support member is provided with a guide rail. The guide wheel is slidably connected to the guide rail.

[0027] According to a preferred embodiment, the guide wheel is provided with a fixing pin, the guide wheel is rotatably connected to the fixing pin, and the fixing pin is fixedly connected to the baffle.

[0028] According to a preferred embodiment, the two pulleys are equidistant from the fixing pin in the horizontal direction.

[0029] With this setup, the two pulleys are subjected to uniform force. When the vertical height of one pulley (moving wheel) is adjusted, the height of the other wheel will also change accordingly due to the balanced force, thus maintaining the motion stability of the pulley mechanism.

[0030] Secondly, the present invention provides a heavy-duty lifting door and window, including a pulley mechanism and a door and window body as described above, wherein the pulley mechanism is located at the end of the door and window body in the horizontal movement direction.

[0031] In summary, the adjustable height pulley mechanism and heavy-duty lifting door / window provided by this invention have at least the following technical advantages:

[0032] The heavy-duty lifting door and window provided by this invention includes a door and window body and a pulley mechanism. The pulley mechanism includes a baffle, two pulleys and an adjustment component. At least one of the two pulleys is configured as a movable wheel. The adjustment component can adjust the vertical height of the movable wheel on the baffle. In actual use, there are unavoidable dimensional errors in the slide rail of the pulley mechanism and the profile of the door and window body. After long-term use, the profile will also deform due to gravity. By adjusting the height of the pulley mechanism and the door and window body through the adjustment component, the distance between the door and window body and the casing structure in the horizontal and vertical directions can be adjusted, ensuring that the door and window body fits tightly with the casing structure and has good airtightness. At the same time, if the door and window body is equipped with a lock box, it can also ensure the normal locking and unlocking of the lock box, providing users with a good user experience. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0034] Figure 2 for Figure 1 A 3D structural diagram with one side panel removed;

[0035] Figure 3 This is an exploded perspective view of part of the structure in this embodiment;

[0036] Figure 4 An exploded 3D view showing the structure behind one side of the baffle.

[0037] Figure 5 This is an exploded plan view of the baffle and adjusting block in this embodiment;

[0038] Figure 6 This is a planar sectional view of this embodiment.

[0039] The meanings of the reference numerals in the attached figures are as follows:

[0040] 1-Baffle; 11-Fixing hole; 12-Fixing shaft hole; 13-First movable shaft hole; 14-Positioning hole; 15-Positioning block; 16-Guide protrusion; 17-Engaging groove; 2-Supporting component; 21-Guide rail; 3-Connecting component; 4-Fixing wheel; 5-Movable wheel; 51-Movable shaft; 52-Fastening sleeve; 6-Adjusting component; 61-End seat; 611-Second movable shaft hole; 612-Guide groove; 613-Through hole; 62-Engaging block; 63-Adjusting pin; 64-Anti-loosening component; 65-Locking buckle; 7-Guide wheel; 71-Fixing pin. Detailed Implementation

[0041] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] In the description of this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0044] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0045] Furthermore, in the description of this invention, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" are used to describe the angles shown in the accompanying drawings and should not be construed as limiting specific embodiments. It should also be understood that, in the context of an element or feature being connected "upper," "lower," "inner," or "outer" of another element (one or more), it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0046] Please see Figure 1 and Figure 2 This invention discloses a pulley mechanism, including a baffle 1, a support 2, pulleys, a connector 3, and an adjustment component 6. The connector 3 is used to connect the profile to drive the door / window body (not shown in the figure) to move. The baffles 1 are fixed in pairs at both ends of the connector 3. There are two pulleys, which are clamped and movably connected to the two baffles 1. The support 2 is also clamped between the two baffles 1 and is used to support the door / window body in the vertical direction. The connector 3 and the adjustment component 6 are respectively located at both ends of the baffle 1 in the sliding direction of the pulley to ensure the stability of the overall movement of the pulley mechanism.

[0047] Specifically, the pulley mechanism in this embodiment also includes a guide wheel 7, a guide rail 21 is provided on the support member 2, the guide wheel 7 is slidably connected to the guide rail 21 to realize the lifting and lowering of the pulley mechanism, a fixing pin 71 is provided through the axis of the guide wheel 7, the guide wheel 7 is rotatably connected to the fixing pin 71, the baffle 1 has a positioning hole 14 at the relative position of the fixing pin 71, and the fixing pin 71 passes through the positioning hole 14; the direction of movement of the guide wheel 7 in the guide rail 21 is the direction of movement of the baffle 1 relative to the support member 2.

[0048] Furthermore, please refer to the following: Figures 3 to 5 One of the two pulleys is configured as a fixed pulley 4, and the other is configured as a movable pulley 5. A movable shaft 51 passes through the axle of the movable pulley 5. A first movable shaft hole 13 is provided on the baffle 1. The movable shaft 51 passes through the first movable shaft hole 13 and the adjusting assembly 6. Please refer to [reference needed]. Figure 5 In the coordinate system, the X direction is defined as the horizontal direction, the Y direction perpendicular to the X direction is defined as the vertical direction, and the extension direction of the first movable shaft hole 13 is defined as the Y direction. That is, the movable wheel 5 can move relative to the baffle 1 in the Y direction. The adjustment component 6 adjusts the position of the movable shaft 51 within the first movable shaft hole 13 to adjust the positional change of the movable wheel 5 relative to the baffle 1 in the Y direction. The adjustment component 6 includes an end seat 61, on which a second movable shaft hole 611 is provided. The angle between the extension direction of the second movable shaft hole 611 and the X direction is configured to be greater than 0° and less than 0°. At 90°, i.e. not parallel to the X and / or Y directions, the movable shaft 51 passes through both the first movable shaft hole 13 and the second movable shaft hole 611. During the movement of the movable shaft 51 along the second movable shaft hole 611, changes in the X and Y directions are realized simultaneously. Since the extension direction of the first movable shaft hole 13 is the Y direction, by adjusting the position change of the movable shaft 51 relative to the second movable shaft hole 611, the position change of the movable wheel 5 relative to the first movable shaft hole 13 in the Y direction can be adjusted, converting horizontal movement into vertical movement, which is convenient for users to operate.

[0049] It is understood that both pulleys can also be configured as movable wheels 5. The structure and operation of the movable wheels 5 are described in the above description of movable wheels 5, and will not be elaborated further here. Such modifications are all within the protection scope of this invention.

[0050] Specifically, one of the baffle 1 and the end seat 61 is provided with a guide protrusion 16, and the other is provided with a guide groove 612 at a corresponding position. The guide protrusion 16 and the guide groove 612 are slidably connected. In this embodiment, the guide protrusion 16 is provided on the baffle 1, and the guide groove 612 is provided on the end seat 61. The extension direction of the guide groove 612 is the X direction. In short, the movement of the end seat 61 in the X direction is converted into the movement of the movable wheel 5 in the Y direction. In order to further ensure the stability of the horizontal movement between the end seat 61 and the baffle 1, the baffle 1 is also provided with a positioning block 15. The positioning block 15 is set along the X direction to limit the relative displacement between the end seat 61 and the baffle 1 in the Y direction. The end of the movable shaft 51 that passes through the first movable shaft hole 13 and the second movable shaft hole 611 is fitted with a fastening sleeve 52 for positioning the movable shaft 51, and the fastening sleeve 52 abuts against the end seat 61.

[0051] Furthermore, the baffle 1 is also provided with a locking groove 17, and a locking block 62 is inserted in the locking groove 17. The adjustment assembly 6 also includes an adjustment pin 63 and a locking buckle 65. The adjustment pin 63 is inserted into the through hole 613 of the end seat 61 and the locking block 62 in the X direction. The locking block 62 is configured to pass through. The locking buckle 65 is located on the side of the locking block 62 away from the adjustment pin 63 in the X direction. The adjustment pin 63 passes through the locking block 62 and is rotatably connected and positioned at the locking buckle 65. By rotating the adjustment pin 63, the distance between the locking block 62 and the end of the adjustment pin 63 in the X direction is changed. During this process, the adjustment pin 63 pushes the end seat 61 to move in the X direction along the guide protrusion 16 and the guide groove 612. The position of the movable shaft 51 relative to the second movable shaft hole 611 changes, thereby adjusting the position of the movable wheel 5 relative to the first movable shaft hole 13 in the Y direction. In general, the motion state of the pulley mechanism in this embodiment can be regarded as converting horizontal motion into vertical motion. This setting method is convenient for users to operate.

[0052] As a preferred embodiment, the adjusting pin 63 and the locking block 62 can be configured to be threaded together. When this connection method is used, the assembly of the locking buckle 65 can be omitted, simplifying the assembly steps and reducing costs.

[0053] Furthermore, an anti-loosening element 64 is fitted onto the adjusting pin 63. In this embodiment, the anti-loosening element 64 is a return spring. When the distance between the engaging block 62 and the end of the adjusting pin 63 in the X direction decreases, the return spring is gradually compressed, and the elastic force increases. To overcome the elastic force, the force applied by the operator to the adjusting pin 63 also needs to increase. Please refer to [link to relevant documentation]. Figure 6When the movable shaft 51 is located at the lower left corner of the second movable shaft hole 611, the distance between the baffle 1 and the end of the adjusting pin 63 in the X direction is at its maximum, the movable wheel 5 is located at the lowest point on the baffle 1, and the distance between the movable shaft 51 and the upper end face of the support member 2 in the Y direction is at its maximum. That is, this is the highest height of the pulley mechanism in this embodiment. When the adjusting pin 63 is rotated, the movable shaft 51 is located at the upper right corner of the second movable shaft hole 611, which is the lowest height of the pulley mechanism in this embodiment. Under the action of the anti-loosening member 64, the force required for the pulley mechanism to change from the highest height to the lowest height gradually increases, which is convenient for fine adjustment and prevents the height change from being too fast, causing the pulley mechanism to vibrate. On the other hand, the anti-loosening member 64 is usually configured as a spring. When it is assembled between the adjusting pin 63 and the locking block 62, the anti-loosening member 64 is in a compressed state, applying axial pressure to the adjusting pin 63 to prevent the adjusting pin 63 from rotating on its own and causing the height of the movable wheel 5 to change.

[0054] like Figure 5 As shown, the pin for the shaft of the fixed wheel 4 is positioned at the fixed shaft hole 12 on the baffle 1. The projection of the length from the fixed shaft hole 12 to the positioning hole 14 in the X direction is defined as L1, and the projection of the length from the first movable shaft hole 13 to the positioning hole 14 in the X direction is defined as L2. L1 equals L2. With this setting, the two pulleys are evenly stressed. Even if the movable wheel 5 is adjusted in height in the Y direction relative to the baffle 1, the projected length remains unchanged, and the two pulleys maintain a balanced stress. Therefore, the height of the fixed wheel 4 will also change accordingly, maintaining the motion stability of the pulley mechanism.

[0055] This invention also provides a heavy-duty lifting door and window, including the pulley mechanism and door and window body as described above. The pulleys are distinguished according to their sliding direction, and are sequentially classified as a front pulley mechanism, a middle pulley mechanism, and a rear pulley mechanism. In this embodiment, the pulley mechanism described above is typically used as the rear pulley mechanism. Due to unavoidable dimensional errors in the sliding rails of the heavy-duty lifting door and window and the profiles of the door and window body during actual use, and the slight deformation caused by gravity after prolonged use, the sealing degree between the side of the door and window body and the casing structure will deteriorate. If a lock box is provided on the door and window body, it may also prevent the lock box from locking properly. As described above regarding the pulley mechanism, the adjusting component 6 adjusts the height of the pulley mechanism and the door and window body, thereby adjusting the distance between the door and window body and the casing structure in the horizontal and vertical directions, ensuring a tight fit between the door and window body and the casing structure, providing good sealing. Simultaneously, if a lock box is provided on the door and window body, it also ensures normal locking and unlocking of the lock box, providing a good user experience.

[0056] In summary, the heavy-duty lifting door and window provided by this invention includes a door and window body and a pulley mechanism. The pulley mechanism includes a baffle 1, two pulleys and an adjustment component 6. At least one of the two pulleys is configured as a movable wheel 5. The adjustment component 6 can adjust the vertical height of the movable wheel 5 on the baffle 1. In actual use, there are unavoidable dimensional errors in the slide rail of the pulley mechanism and the profile of the door and window body. After long-term use, the profile will also deform due to gravity. By adjusting the height of the pulley mechanism and the door and window body by adjusting the adjustment component 6, the distance between the door and window body and the casing structure in the horizontal and vertical directions can be adjusted, ensuring that the door and window body and the casing structure fit tightly and have good airtightness. At the same time, if the door and window body is equipped with a lock box, it can also ensure the normal locking and unlocking of the lock box, providing users with a good user experience.

[0057] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A height-adjustable pulley mechanism, characterized in that, include: baffle (1); Rotate the two pulleys connected to the baffle (1); Adjustment component (6), which is movably connected to the baffle (1); At least one of the two pulleys is configured as a movable wheel (5), the movable wheel (5) has a movable shaft (51) passing through its axis, the baffle (1) has a first movable shaft hole (13), and the extension direction of the first movable shaft hole (13) is configured to be vertical. The movable shaft (51) passes through the first movable shaft hole (13) and the adjustment component (6). The adjustment component (6) adjusts the position of the movable shaft (51) in the first movable shaft hole (13) to adjust the position of the movable wheel (5) relative to the baffle (1) in the vertical direction.

2. The adjustable height pulley mechanism according to claim 1, characterized in that: One of the two pulleys is configured as a movable wheel (5) and the other is configured as a fixed wheel (4), the fixed wheel (4) being rotatably connected to the baffle (1).

3. A height-adjustable pulley mechanism according to claim 1 or 2, characterized in that: The adjustment component (6) includes an end seat (61), on which a second movable shaft hole (611) is provided. The angle between the extension direction of the second movable shaft hole (611) and the horizontal direction is configured to be greater than 0° and less than 90°. The movable shaft (51) passes through the first movable shaft hole (13) and the second movable shaft hole (611).

4. The adjustable height pulley mechanism according to claim 3, characterized in that: One of the baffle (1) and the end seat (61) is provided with a guide protrusion (16), and the other is provided with a guide groove (612) at a corresponding position. The guide groove (612) extends in a horizontal direction, and the guide protrusion (16) is slidably connected to the guide groove (612).

5. The adjustable height pulley mechanism according to claim 3, characterized in that: It also includes a locking block (62) connected to the baffle (1); The adjustment assembly (6) further includes an adjustment pin (63), which passes through the end seat (61) and the locking block (62).

6. The adjustable height pulley mechanism according to claim 5, characterized in that: The adjusting assembly (6) further includes a locking buckle (65), the engaging block (62) is configured to pass through, the locking buckle (65) is located on the side of the engaging block (62) away from the adjusting pin (63), and the adjusting pin (63) is rotatably connected to and positioned on the locking buckle (65).

7. The adjustable height pulley mechanism according to claim 3, characterized in that: It also includes a fastening sleeve (52), which is used to position the movable shaft (51), is sleeved on the end of the movable shaft (51), and the fastening sleeve (52) abuts against the end seat (61).

8. A height-adjustable pulley mechanism according to any one of claims 5-6, characterized in that: The adjusting assembly (6) further includes an anti-loosening element (64), which is sleeved on the adjusting pin (63).

9. A height-adjustable pulley mechanism according to claim 1 or 2, characterized in that: It also includes a support member (2) and a guide wheel (7). The baffles (1) are arranged in pairs on both sides of the support member (2). The support member (2) is provided with a guide rail (21), and the guide wheel (7) is slidably connected to the guide rail (21).

10. The adjustable height pulley mechanism according to claim 9, characterized in that: The guide wheel (7) is provided with a fixing pin (71), the guide wheel (7) is rotatably connected to the fixing pin (71), and the fixing pin (71) is fixedly connected to the baffle (1).

11. The adjustable height pulley mechanism according to claim 10, characterized in that: The two pulleys are equidistant from the fixing pin (71) in the horizontal direction.

12. A heavy-duty lifting door / window, comprising a pulley mechanism as described in any one of claims 1-11, characterized in that: It also includes the main body of the door and window, and the pulley mechanism is located at the end of the main body of the door and window in the horizontal movement direction.

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