A door and window inner swing-in and swing-out hinge structure and an inner swing-in and swing-out window

By setting inclined strip holes on the tie rod, the stress problem when the inward tilt window is closed is solved, the feel and sealing effect are improved, the service life is extended and the risk of air and water leakage is reduced.

CN224549904UActive Publication Date: 2026-07-24QINGDAO QIMEI HARDWARE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO QIMEI HARDWARE TECH CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The locking stroke of existing inward-opening hardware accessories causes the lock column and tie rod to be damaged faster, resulting in poor friction feel, affecting the transmission force of the entire hardware set, reducing service life and sealing effect.

Method used

A strip-shaped hole with a certain angle to its length is set on the diagonal tie rod, so that the locking pin and diagonal tie rod travel on the inclined surface when closing the inward-tilting window, which reduces the stress and enhances the sealing effect.

Benefits of technology

It reduces the locking force by two-thirds, improves the feel, extends service life, enhances sealing performance, and reduces the risk of air and water leakage.

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Abstract

The utility model discloses a kind of door and window inner swing-in inner tilt hinge structure and inner swing-in inner tilt window, the door and window inner swing-in inner tilt hinge structure includes first base for connecting sash, second base for connecting window frame, connecting link assembly and transmission part of first base and second base;By setting strip-shaped hole with certain inclination angle with its length direction on diagonal pull rod, it can make lock post and diagonal pull rod walk inclined plane stroke when closing inner tilt locking window, from handle operation to locking window walk inclined plane stroke, from the most loose state of closing inner tilt to locking window to the most close state stress reduction two-thirds, locked in when entering diagonal pull rod inclined plane notch, it is easy to enter, when window is locked, inner tilt diagonal pull rod upper corner is extruded by facing visible to window frame inner side tightening to reach high-strength sealing sufficiently;It reaches the technical effect of convenient installation adjustment, good hand feeling, reduce friction, strengthen service life, strengthen sealing, reduce air leakage and maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of hinge structure technology, specifically to a hinge structure for doors and windows that opens inward and tilts inward, and an inward-opening and tilting window. Background Technology

[0002] The existing tilt-and-turn hardware has an inward locking stroke; the upper tilt-and-turn eccentric adjustment lock column and diagonal lever have a linear travel when closing the tilt-and-turn window, which causes the same travel distance from the start of handle operation to the window locking. This results in faster damage to the lock and diagonal lever, reduced lifespan, and the same frictional feel on the handle during operation, which affects the overall hardware transmission force.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hinge structure for an inward-opening and inward-tilting window, and an inward-opening and inward-tilting window. This hinge structure, by providing a strip-shaped hole at a certain angle to its length on the tie rod, allows the locking pin and tie rod to travel an inclined path when closing the inward-tilting window. From the moment the handle is turned until the window is locked, the inclined path reduces the force by two-thirds from the loosest state when the inward-tilting window is closed to the tightest seal when locked. It also allows for easy entry into the inclined groove of the tie rod. When the window is locked, the upper corner of the inward-tilting tie rod tightens from the visible side to the inside of the window frame, reinforcing the sealing strip and achieving a high-strength seal. The inward-opening and inward-tilting hinge structure includes a first base for connecting the window sash, a second base for connecting the window frame, a connecting rod assembly connecting the first base and the second base, and a transmission component.

[0005] The linkage assembly includes a tie rod, a secondary rod, a connecting rod, and a rocker arm. The first end of the tie rod is rotatably connected to the first base and can slide back and forth on the first base. The tail end of the tie rod is rotatably connected to the first end of the rocker arm. The first end of the secondary rod is rotatably connected to the first base, and the tail end of the secondary rod is rotatably connected to the tie rod. The tail end of the rocker arm is rotatably connected to the second base and can slide back and forth on the second base. The first end of the connecting rod is rotatably connected to the tie rod and can slide back and forth on the tie rod. The tail end of the connecting rod is rotatably connected to the second base.

[0006] The transmission component is slidably engaged with the first base, and a lock is provided on the transmission component; a strip-shaped hole is provided in the middle part of the diagonal tie rod to cooperate with the lock, and the strip-shaped hole is arranged along the length direction of the diagonal tie rod and has an inclined angle with the length direction of the diagonal tie rod.

[0007] Preferably, the tilt angle is 5~10°.

[0008] This utility model also provides an inward-opening and inward-tilting window, including the inward-opening and inward-tilting hinge structure of the door and window.

[0009] The beneficial effects of this utility model are reflected in:

[0010] This invention, by providing a strip-shaped hole at a certain angle to its length on the diagonal tie rod, allows the locking pin and diagonal tie rod to travel along an inclined path when closing the tilt-and-turn window. From the moment the handle is turned until the window is locked, the inclined path reduces the force by two-thirds from the loosest state when the tilt-and-turn is closed to the tightest seal when the window is locked. It also allows for easy entry into the inclined groove of the diagonal tie rod. When the window is locked, the upper corner of the tilt-and-turn diagonal tie rod tightens from the visible side to the inside of the window frame, reinforcing the sealing strip and achieving a high-strength seal. This design achieves the technical effects of convenient installation and adjustment, good feel, reduced friction, extended service life, enhanced sealing, and reduced maintenance costs due to air and water leaks. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0013] In the attached diagram,

[0014] 1-First base; 2-Second base; 3-Linkage assembly; 31-Tie rod; 32-Secondary rod; 33-Linkage rod; 34-Rock arm; 35-Strip hole; 4-Transmission component; 41-Lock. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] This utility model provides a hinge structure for an inward-opening and inward-tilting window. This hinge structure, by providing a strip-shaped hole at a certain angle to its length on the tie rod, allows the locking post and tie rod to travel an inclined path when the window is closed and locked. From the moment the handle is turned until the window is locked, the inclined path reduces the force by two-thirds from the loosest state when the window is closed to the tightest seal when locked. It easily enters the inclined groove of the tie rod when locked. When the window is locked, the upper corner of the inward-opening tie rod tightens from the visible side to the inside of the window frame, reinforcing the sealing strip and achieving a high-strength seal. The inward-opening and inward-tilting hinge structure includes a first base 1 for connecting the window sash, a second base 2 for connecting the window frame, a connecting rod assembly 3 for connecting the first base 1 and the second base 2, and a transmission component 4.

[0018] The linkage assembly 3 includes a tie rod 31, a secondary rod 32, a connecting rod 33, and a rocker arm 34. The first end of the tie rod 31 is rotatably connected to the first base 1 and can slide back and forth on the first base 1. The tail end of the tie rod 31 is rotatably connected to the first end of the rocker arm 34. The first end of the secondary rod 32 is rotatably connected to the first base 1, and the tail end of the secondary rod 32 is rotatably connected to the tie rod 31. The tail end of the rocker arm 34 is rotatably connected to the second base 2 and can slide back and forth on the second base 2. The first end of the connecting rod 33 is rotatably connected to the tie rod 31 and can slide back and forth on the tie rod 31. The tail end of the connecting rod 33 is rotatably connected to the second base 2.

[0019] The transmission component 4 is slidably engaged with the first base 1, and a lock 41 is provided on the transmission component 4; a strip hole 35 that cooperates with the lock 41 is provided in the middle part of the diagonal tie rod 31, and the strip hole 35 is provided along the length direction of the diagonal tie rod 31 and has an inclined angle with the length direction of the diagonal tie rod 31.

[0020] In one embodiment, the tilt angle is 5~10°.

[0021] Another embodiment of this utility model provides an inward-opening and inward-tilting window, including the inward-opening and inward-tilting hinge structure of the door and window.

[0022] This invention, by providing a strip-shaped hole 35 at a certain angle to its length on the diagonal tie rod 31, allows the locking pin 41 and the diagonal tie rod 31 to travel along an inclined path when closing the tilt-and-turn window. From the moment the handle is turned until the window is locked, the inclined path reduces the force by two-thirds from the loosest state when the tilt-and-turn window is closed to the tightest sealing state when the window is locked. It also allows for easy entry into the inclined groove of the diagonal tie rod 31. When the window is locked, the upper corner of the tilt-and-turn diagonal tie rod 31 tightens from the visible side to the inside of the window frame, reinforcing the sealing strip and achieving a high-strength seal. This invention achieves the technical effects of convenient installation and adjustment, good feel, reduced friction, extended service life, enhanced sealing, and reduced maintenance costs for air and rain leaks.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A hinge structure for doors and windows that opens inward and tilts inward, characterized in that, The inward-opening hinge structure of the door and window includes a first base for connecting the window sash, a second base for connecting the window frame, a connecting rod assembly and a transmission component for connecting the first base and the second base; The linkage assembly includes a tie rod, a secondary rod, a connecting rod, and a rocker arm. The first end of the tie rod is rotatably connected to the first base and can slide back and forth on the first base. The tail end of the tie rod is rotatably connected to the first end of the rocker arm. The first end of the secondary rod is rotatably connected to the first base, and the tail end of the secondary rod is rotatably connected to the tie rod. The tail end of the rocker arm is rotatably connected to the second base and can slide back and forth on the second base. The first end of the connecting rod is rotatably connected to the tie rod and can slide back and forth on the tie rod. The tail end of the connecting rod is rotatably connected to the second base. The transmission component is slidably engaged with the first base, and a lock is provided on the transmission component; a strip hole that engages with the lock is provided in the middle part of the diagonal tie rod, and the strip hole is provided along the length direction of the diagonal tie rod and has an inclined angle with the length direction of the diagonal tie rod.

2. The inward-opening and inward-tilting hinge structure for doors and windows according to claim 1, characterized in that, The tilt angle is 5 to 10°.

3. A type of inward-opening and inward-tilting window, characterized in that, Includes the inward-opening and inward-tilting hinge structure for doors and windows as described in claim 1 or 2.