A new type of hidden spring hinge

Abstract

The present invention discloses a novel concealed spring hinge, which includes a hinge and a driving component for driving the hinge to close; the hinge includes a frame connecting piece, a sash connecting piece, a first connecting rod, and a second connecting rod; the frame connecting piece is formed with a first sliding groove, the sash connecting piece is formed with a second sliding groove, one end of the first connecting rod is pivotally connected to the frame connecting piece, and at the same time the other end of the first connecting rod is slidably engaged with the second sliding groove, one end of the second connecting rod is pivotally connected to both the sash connecting piece and the first connecting rod, and the other end of the second connecting rod is slidably engaged with the first sliding groove; the driving component includes a sleeve, an upper ratchet wheel, a lower ratchet wheel, a torsion spring, and a rotating shaft which are arranged in the sleeve from top to bottom in sequence, wherein the upper and lower ends of the torsion spring are respectively fixedly connected to the lower ratchet wheel and the rotating shaft, and the upper ratchet wheel is fixedly connected to the sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of building hardware, and particularly to a novel concealed spring hinge. Background Art

[0002] Most hinges in the field of building doors, windows and fireproof windows in the market are externally exposed for installation. With the continuous change of the market, in order to pursue the transparency, beauty and grandeur of window sashes, architects generally require that the window sash hardware is not externally exposed, and the hinge should have high load-bearing capacity. At present, in order to meet the fire performance requirements, the main components of the concealed hinges in the market are made of cast steel parts, which have high cost, poor machining accuracy, insufficient power and inconvenient installation. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a novel concealed spring hinge with novel structure, simple installation and strong adjustability.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a novel concealed spring hinge, including a hinge and a driving component for driving the hinge to close; the hinge includes a frame connecting piece, a sash connecting piece, a first connecting rod and a second connecting rod; the frame connecting piece is formed with a first sliding groove, the sash connecting piece is formed with a second sliding groove, one end of the first connecting rod is pivotally connected to the frame connecting piece, and at the same time the other end of the first connecting rod is slidably matched with the second sliding groove, one end of the second connecting rod is pivotally connected to the sash connecting piece and the first connecting rod at the same time, and the other end of the second connecting rod is slidably matched with the first sliding groove; the driving component includes a sleeve, an upper ratchet wheel, a lower ratchet wheel, a torsion spring and a rotating shaft which are arranged in the sleeve from top to bottom in sequence, wherein the upper and lower ends of the torsion spring are respectively fixedly connected to the lower ratchet wheel and the rotating shaft, and the upper ratchet wheel is fixedly connected to the sleeve.

[0005] The beneficial effect of the present invention is: for the novel concealed spring hinge of the present invention, during the process of opening the window sash, the first connecting rod and the second connecting rod can play a role in supporting and strengthening the window sash. In addition, its driving component can realize the self-closing of the sash body of the window sash. Specifically, when the window sash is opened, the torsion spring is driven by the window sash to twist and generate elastic deformation and accumulate elastic potential energy. When the window sash is not affected by external force or positioning device, the reset deformation of the torsion spring drives the window sash to close.

[0006] Preferably, the frame connecting piece is fixedly connected with a corner fitting for connecting the frame profile, and the corner fitting and the frame connecting piece cooperate to form a right-angle structure. The use of the corner fitting can increase the connection area between the hinge and the frame profile and improve the stability of the connection structure.

[0007] Preferably, one or both of the frame connectors and the corner codes are rotatably connected with a buckling component for connecting the frame profiles. The buckling component includes a locking block that cooperates with the installation groove of the frame profile and a rivet of the buckling component. A hexagonal hole is formed on the upper surface of the rivet of the buckling component. The locking block can be buckled with the installation groove of the frame profile, and the rivet of the buckling component can be rotated by a hexagonal wrench to drive the locking block to rotate, so that the locking block is switched between buckling and unlocking with the installation groove, realizing quick installation and connection.

[0008] Preferably, the frame connector is provided with a height adjustment mechanism. The height adjustment mechanism includes an adjustment seat and an adjustment screw. The frame connector is provided with an adjustment groove extending along the length direction. A connecting portion that is threadedly connected with the adjustment screw is formed on the upper surface of the adjustment seat, and the axis of the adjustment screw is inclined. The connecting portion is slidably matched with the adjustment groove. By screwing the adjustment screw, the adjustment seat can be driven to move obliquely, so as to adjust the relative height between the adjustment seat and the frame connector, and finally realize the adjustment of the installation height of the frame connector.

[0009] Preferably, the adjustment seat is provided with a horizontal sliding groove, and the adjustment seat and the frame connector are connected by a rivet passing through the horizontal adjustment groove. Connecting with a rivet can further strengthen the connection structure between the adjustment seat and the frame connector. At the same time, the connection method of the horizontal sliding seat and the rivet will not hinder the oblique sliding adjustment of the adjustment seat.

[0010] Preferably, the rotating shaft is provided with an annular groove, and at the same time, the sleeve is threadedly connected with a screw extending into the annular groove.

[0011] Preferably, the torsion spring is a square wire torsion spring. The torque of the square wire torsion spring is greater than that of an ordinary circular torsion spring. Description of the Drawings

[0012] Figure 1 It is an assembly schematic diagram of the present invention with a window sash and a window frame.

[0013] Figure 2 It is a three-dimensional structure diagram of the present invention.

[0014] Figure 3 It is a three-dimensional exploded view of the present invention.

[0015] Figure 4 It is a three-dimensional structure diagram of the adjustment seat of the present invention.

[0016] Figure 5 It is an exploded view of the driving component of the present invention.

[0017] Figure 6 It is a side cross-sectional view of the present invention.

[0018] Among them, 1 - hinge, 11 - frame connecting piece, 111 - first chute, 112 - adjusting groove, 12 - sash connecting piece, 121 - second chute, 13 - first connecting rod, 14 - second connecting rod, 15 - corner fitting, 16 - buckling component, 161 - locking block, 162 - buckling component rivet, 17 - height adjusting mechanism, 171 - adjusting seat, 172 - adjusting screw, 173 - connecting part, 174 - horizontal chute, 2 - driving component, 21 - sleeve, 22 - upper ratchet wheel, 23 - lower ratchet wheel, 24 - torsion spring, 25 - rotating shaft, 251 - annular groove, 3 - window sash, 4 - window frame. Detailed implementation manners

[0019] The technical solution claimed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] See Figures 1 to 6 As shown, a new type of hidden spring hinge in this embodiment includes a hinge 1 and a driving component 2 for driving the hinge 1 to close.

[0021] The hinge 1 includes a frame connecting piece 11 connected to the profile of the window frame 4, a sash connecting piece 12 connected to the window sash 3, a first connecting rod 13, and a second connecting rod 14. The frame connecting piece 11 is formed with a first chute 111, the sash connecting piece 12 is formed with a second chute 121. One end of the first connecting rod 13 is pivotally connected to the frame connecting piece 11, and at the same time, the other end of the first connecting rod 13 is slidably engaged with the second chute 121. One end of the second connecting rod 14 is pivotally connected to both the sash connecting piece 12 and the first connecting rod 13, and the other end of the second connecting rod 14 is slidably engaged with the first chute 111.

[0022] In this embodiment, the frame connecting piece 11 is fixedly connected with a corner fitting 15 for connecting the frame profile. The corner fitting 15 and the frame connecting piece 11 cooperate to form a right - angle structure. In addition, a buckling component 16 for connecting the frame profile is rotatably connected between the frame connecting piece 11 and the corner fitting 15. The buckling component 16 includes a locking block 161 that cooperates with and buckles into the installation groove of the frame profile and a buckling component rivet 162. The upper surface of the buckling component rivet 162 is formed with a hexagonal hole.

[0023] In this embodiment, the locking block 161 is in a rectangular structure, and its length is greater than the width of the notch of the frame installation groove, and the width of the locking block 161 is less than the width of the notch of the frame installation groove. Therefore, the buckling component rivet 162 can be rotated by a hexagonal wrench to drive the locking block 161 to rotate, so that the locking block 161 can be switched between buckling and unbuckling with the installation groove, realizing quick installation and connection.

[0024] In this embodiment, the frame connecting member 11 is provided with a height adjusting mechanism 17. The height adjusting mechanism 17 includes an adjusting seat 171 and an adjusting screw 172. The frame connecting member 11 is provided with an adjusting groove 112 extending in the length direction. The upper surface of the adjusting seat 171 is formed with a connecting portion 173 threadedly connected to the adjusting screw 172, and the axis of the adjusting screw 172 is inclined. The connecting portion 173 is slidably engaged with the adjusting groove 112. The adjusting seat 171 is provided with a horizontal sliding groove 174, and the adjusting seat 171 and the frame connecting member 11 are connected by a rivet passing through the horizontal adjusting groove 112. By screwing the adjusting screw 172, the adjusting seat 171 can be driven to move obliquely, so as to adjust the relative height between the adjusting seat 171 and the frame connecting member 11, and finally realize the adjustment of the installation height of the frame connecting member 11.

[0025] The driving component 2 includes a sleeve 21, an upper ratchet 22, a lower ratchet 23, a torsion spring 24 and a rotating shaft 25 which are arranged in the sleeve 21 from top to bottom in sequence. The upper and lower ends of the torsion spring 24 are respectively fixedly connected to the lower ratchet 23 and the rotating shaft 25. The upper ratchet 22 is fixedly connected to the sleeve 21, and the torsion spring 24 is a square wire torsion spring. The rotating shaft 25 is provided with an annular groove 251, and at the same time, the sleeve 21 is threadedly connected with a screw extending into the annular groove 251. When the window sash 3 is opened, the torsion spring 24 is driven by the window sash 3 to twist and generate elastic deformation and accumulate elastic potential energy. When the window sash 3 is not affected by external force or positioned by a positioning device, the torsion spring 24 restores deformation to drive the window sash 3 to close.

[0026] The above-described embodiments are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make more possible changes and refinements to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the idea of the present invention without departing from the content of the technical solution of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A novel hidden spring hinge, characterized in that: It includes a hinge (1) and a driving component (2) for driving the hinge (1) to close; the hinge (1) includes a frame connecting piece (11), a sash connecting piece (12), a first connecting rod (13), and a second connecting rod (14); the frame connecting piece (11) is formed with a first sliding groove (111), the sash connecting piece (12) is formed with a second sliding groove (121), one end of the first connecting rod (13) is pivotally connected to the frame connecting piece (11), and at the same time the other end of the first connecting rod (13) is in sliding fit with the second sliding groove (121), one end of the second connecting rod (14) is pivotally connected to both the sash connecting piece (12) and the first connecting rod (13), and the other end of the second connecting rod (14) is in sliding fit with the first sliding groove (111); the driving component (2) includes a sleeve (21), an upper ratchet wheel (22), a lower ratchet wheel (23), a torsion spring (24), and a rotating shaft (25) which are arranged in the sleeve (21) from top to bottom in sequence, wherein the upper and lower ends of the torsion spring (24) are respectively fixedly connected to the lower ratchet wheel (23) and the rotating shaft (25), and the upper ratchet wheel (22) is fixedly connected to the sleeve (21); the frame connecting piece (11) is fixedly connected with an angle code (15) for connecting the frame profile, and the angle code (15) and the frame connecting piece (11) cooperate to form a right-angle structure; one or both of the frame connecting piece (11) and the angle code (15) are rotatably connected with a buckling component (16) for connecting the frame profile, the buckling component (16) includes a locking block (161) which is in buckling fit with the installation groove of the frame profile and a buckling component rivet (162), and the upper surface of the buckling component rivet (162) is formed with a hexagonal hole; the frame connecting piece (11) is provided with a height adjusting mechanism (17), the height adjusting mechanism (17) includes an adjusting seat (171) and an adjusting screw (172), the frame connecting piece (11) is provided with an adjusting groove (112) extending along the length direction, the upper surface of the adjusting seat (171) is formed with a connecting part (173) which is in threaded connection with the adjusting screw (172), and the axis of the adjusting screw (172) is inclined, and the connecting part (173) is in sliding fit with the adjusting groove (112); the adjusting seat (171) is provided with a horizontal sliding groove (174), and the adjusting seat (171) and the frame connecting piece (11) are connected by a rivet passing through the adjusting groove (112).

2. The novel hidden spring hinge according to claim 1, characterized in that: The rotating shaft (25) is provided with an annular groove (251), and at the same time the sleeve (21) is threadedly connected with a screw extending into the annular groove (251).

3. The novel hidden spring hinge according to claim 1, wherein: The torsion spring (24) is a square wire torsion spring.

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