Anti-collision pulley structure with limiting mechanism

Abstract

The invention relates to the field of doors and windows, and discloses an anti-collision pulley structure with a limiting mechanism, the anti-collision pulley structure comprises a door and window track frame, a pulley yoke is slidably arranged in the door and window track frame, an arc-shaped guide disc is installed in a notch of the door and window track frame, the arc-shaped guide disc is located on the rear side of the pulley yoke, a swing arm is arranged above the pulley yoke, and a limiting mechanism is arranged on the swing arm. And the pulley yoke is rotationally hinged with the swing arm through a bearing. The swing arm is hinged to the supporting plate through a second rotating shaft, the supporting plate bears the weight of a window sash, the window sash is closed and opened through rotation of the swing arm, and when the swing arm is rotationally opened and is not completely opened, the arc-shaped guide disc limits overall left-right sliding of the pulley yoke, it is guaranteed that the window sash cannot collide with a window frame, and meanwhile it is guaranteed that the window sash cannot collide with hardware on the window frame; the overall safety of the door and window and the sliding rail is further guaranteed, and damage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of doors and windows, and in particular to an anti-collision pulley structure of doors and windows with a limiting mechanism. Background Art

[0002] In modern buildings, the safety and convenience of doors and windows have become important design considerations. Especially with the increasing use of sealed sliding windows that can be opened by sliding, how to effectively prevent doors and windows from accidental collision or damage during the opening process has become an urgent problem that designers need to solve.

[0003] In the pulley system disclosed in the patent number: CN 212898068 U, when the doors and windows are opened, before the swing arm is fully extended, the pulley mechanism as a whole drives the window sash to slide freely, causing collisions between the window sash and the window frame, causing damage to the profile and hardware, and then leading to damage to components such as the window frame and the slide rail, affecting the service life of the doors and windows. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an anti-collision pulley structure with a limiting mechanism, which solves the problem that when the doors and windows are opened, the swing arm of the traditional pulley system is not fully extended, the window sash can slide and cause a collision between the window sash and the window frame, thereby causing damage to the door and window profiles and hardware.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-collision pulley structure with a limiting mechanism, comprising a door and window track frame, a pulley frame is provided inside the track of the door and window track frame, the pulley frame can slide left and right along the track direction, a swing arm is arranged above the pulley frame, the pulley frame is rotatably hinged to the first rotating shaft of the swing arm, the swing arm is rotatably hinged to the support plate through the second rotating shaft, a roller is hinged at the third rotating shaft of the swing arm, and the roller is located below the swing arm, an arc-shaped guide plate is installed in the profile buckle groove of the door and window track frame, and the arc-shaped guide plate is located on the rear side of the pulley frame, and the roller can roll along the semicircular surface of the arc-shaped guide plate.

[0006] Preferably, two fixing screw holes are provided on the front side of the arc guide plate, and the arc guide plate is installed with the buckle groove of the door and window track frame by two bolts passing through the two fixing screw holes respectively.

[0007] Preferably, a support plate is provided above the swing arm, the support plate and the swing arm are rotatably hinged via a second rotating shaft, and the support plate is used to bear the weight of the window sash.

[0008] Preferably, a plurality of reserved holes are provided on the surface of the support plate, and the support plate and the reserved holes are used for installing doors and windows.

[0009] The present invention provides an anti-collision pulley structure with a limiting mechanism, which has the following beneficial effects:

[0010] In the process of the window sash being opened from closed, the support plate pulls the swing arm to rotate with the first rotating shaft and the second rotating shaft as the axis points. When the swing arm is not fully opened, the roller can only roll along the semicircular surface of the arc guide plate until the window sash is fully pulled out, that is, after the roller is completely separated from the arc guide plate, the pulley frame can drive the window sash to slide to the left to complete the window opening action, thereby completing the opening process of the drift window and preventing the window sash from colliding with the window frame and the hardware on the window frame.

[0011] It further ensures the safety of doors, windows and sliding rails, and greatly improves the safety during use, meeting the needs of modern buildings for the safety and convenience of doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A perspective view of the present invention;

[0013] Figure 2 It is a right view structural schematic diagram of the present invention;

[0014] Figure 3 It is a structural schematic diagram of the arc guide plate and the swing arm in the present invention;

[0015] Figure 4 It is a structural schematic diagram of the swing arm and the pulley frame in the present invention;

[0016] Figure 5 It is a schematic structural diagram of the arc guide plate, the swing arm and the support plate in the present invention.

[0017] Among them, 1. door and window track frame; 2. arc guide plate; 3. fixing screw hole; 4. pulley frame; 5. rotating bearing; 6. swing arm; 7. first rotating shaft; 8. roller; 9. support plate; 10. second rotating shaft; 11. support plate mounting hole; 12. third rotating shaft. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] Please refer to the attached Figure 1 -Attached Figure 5The embodiment of the present invention provides an anti-collision pulley structure with a limiting mechanism, including a door and window track frame 1, a pulley frame 4 that can move left and right along the track is arranged in the track of the door and window track frame 1, an arc guide plate 2 can be installed inside the profile groove of the door and window track frame 1, and the arc guide plate 2 is located at the rear side of the pulley frame 4, a swing arm 6 is rotatably hinged to the upper side of the pulley frame 4 through a first rotating shaft 7, the swing arm 6 is hinged to a support plate 9 through a second rotating shaft 10, the support plate 9 bears the weight of the window sash, a third rotating shaft 12 is riveted to the swing arm 6, and the outer diameter of the third rotating shaft 12 is rotated It is connected with a roller 8, and the roller 8 is located below the swing arm 6. When the window sash is closed or opened, the roller 8 can roll along the semicircular surface of the arc guide plate 2; two fixing screw holes 3 are arranged on the front side of the arc guide plate 2, and the arc guide plate 2 is installed or disassembled with the groove of the door and window track frame 1 by two bolts passing through the two fixing screw holes 3 respectively; so that it forms a front-to-back misalignment with the pulley frame 4; a plurality of reserved installation holes 11 are arranged on the surface of the support plate 9, and the support plate 9 and the reserved holes 11 are used for the installation of the window sash; the window sash is installed to the top of the support plate 9 through the reserved holes 11.

[0020] In actual operation, since the drift window is flush with the door and window next to it when it is not opened, when the drift window needs to be opened, the user applies a pulling force externally by manpower to open the drift window. When the pulling force is applied, the support plate 9 pulls the swing arm 6 to rotate around the first rotating shaft 7 and the second rotating shaft 10 as the axis points, especially in the process from closing to opening the window sash, when the swing arm 6 is not fully opened, the roller 8 rolls along the semicircular surface of the arc guide plate 2, and this rolling motion can smoothly guide the door and window to be pulled out, so that the subsequent pulley frame 4 drives the window sash to slide to the left to complete the window opening action, that is, to ensure that the roller 8 is completely separated from the arc guide plate 2, and then a push-pull force can be applied to the door and window to the left and right, and the pulley frame 4 can drive the window sash to slide to the left in the door and window frame track frame 1 to complete the opening process of the drift window.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision pulley structure with a limiting mechanism, comprising a door and window track frame (1), an arc guide plate (2), a pulley frame (4), a swing arm (6), a support plate (9), a first rotating shaft (7), a second rotating shaft (10), a third rotating shaft (12), and a roller (8); characterized in that: During the window opening process, the support plate (9) pulls the swing arm (6) to rotate with the first rotating shaft (7) and the second rotating shaft (10) as the axis points. During the process from closing to opening the window sash, when the swing arm (6) is not fully opened, the roller (8) can only roll along the semicircular surface of the arc guide plate (2) until the window sash is completely pulled out, that is, after the roller (8) is completely separated from the arc guide plate (2), the pulley frame (4) can drive the window sash to slide to the left to complete the window opening action, thereby completing the opening process of the drift window and preventing the window sash from colliding with the window frame and the hardware on the window frame.

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