A fireproof window closing device without inductance

Abstract

The present invention discloses a fireproof window closing device without sense of resistance, which includes a hinge and a self-closing device for driving the hinge to close. The self-closing device includes a cylinder shell, a traction member for pulling the hinge, a reset unit built in the cylinder shell for driving the traction member to contract, and a locking member built in the cylinder shell for locking the traction member. The locking member includes a sliding member arranged in the cylinder shell and slidably matched with the cylinder shell, a positioning hook pivoted on the sliding member, a first slider abutted against the positioning hook, and a fire and explosion-proof bead pressing the slider. The cylinder shell is provided with a buckle groove matched with the positioning hook for buckling, and at the same time, the positioning hook is kept buckled with the buckle groove under the mortgage of the slider.

Description

Technical Field

[0001] The present invention relates to the technical field of building hardware, and particularly relates to a fireproof window closing device without resistance feeling. Background Art

[0002] For building doors and windows, in case of a fire, fireproof windows play an important role in preventing heavy losses caused by the fire, slowing down the spread of the fire, including open flames, high temperatures, and thick smoke, and also buying time for fire fighting and rescue. Many building windows are installed with ordinary hinges without fireproof automatic window closing function components; after the existing fireproof automatic window closing components on the market are installed, there is resistance when opening the window, and the elderly and children need a lot of strength to open the window. For windows installed with ordinary hinges, there should be no resistance when opening the window, and fireproof window components need to be installed. Therefore, a fireproof window closing device without resistance feeling is designed, which can adapt to a variety of ordinary hinge windows, has no resistance when opening the window conventionally, and can automatically close the window in case of a fire. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a fireproof window closing device without resistance feeling with novel and reliable structure and capable of achieving fireproof self-closing effect.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a fireproof window closing device without resistance feeling, including a hinge and an automatic closing device for driving the hinge to close. The automatic closing device includes a cylinder shell, a traction member for pulling the hinge, a reset unit built in the cylinder shell for driving the traction member to contract, and a locking member built in the cylinder shell for locking the traction member; wherein the locking member includes a sliding member arranged in the cylinder shell and slidably matched with the cylinder shell, a positioning catch pivotally connected to the sliding member, a first slider in contact with the positioning catch, and a fireproof explosion bead pressing the slider. The cylinder shell is provided with a buckle groove for cooperating with the positioning catch, and at the same time, the positioning catch is kept buckled with the buckle groove under the mortgage of the slider.

[0005] The beneficial effect of the present invention is: the automatic closing device of the present invention can drive the hinge to close when encountering fire, thereby driving the window sash to close to achieve the fireproof self-closing effect. Specifically, in the normal state, the positioning catch of the sliding member cooperates with the buckle groove of the cylinder shell to be buckled, and at this time, the position of the sliding member in the cylinder is fixed, so that the sliding member can lock the traction member, and at this time, the automatic closing device will not drive the hinge to close. When encountering fire, the fireproof explosion bead bursts under the influence of high temperature. After the first slider loses the pressing effect of the fireproof explosion bead, the contact effect of the first slider on the positioning catch also disappears at the same time. At this time, the positioning catch can swing and unfasten from the buckle groove, so that the sliding member can slide freely in the cylinder shell. Under the action of the reset unit, the traction member can pull the hinge to drive the hinge to close, thereby realizing the fireproof self-closing effect.

[0006] Preferably, the self-closing device further includes a second slider and a slide rail that is slidably engaged with the slider and extends along the stretching direction of the traction member. The slide rail is fixedly connected to the cylinder housing, and both ends of the second slider are connected to the hinge and the traction member at the same time. The cooperation between the slide rail and the second slider can guide the traction member to pull the hinge.

[0007] Preferably, the hinge includes a first fixed seat and a second fixed seat respectively connected to the window frame or the window sash, a first connecting rod, a second connecting rod, and a hinge pull rod connected to the self-closing device. The first fixed seat is provided with a first guide groove, and the second fixed seat is provided with a second guide groove. One end of the first connecting rod is pivotally connected to the first fixed seat, and the pivot shaft between the two is slidably engaged with the first guide groove. The other end of the first connecting rod is pivotally connected to the second fixed seat; one end of the second connecting rod is pivotally connected to the middle of the first connecting rod, and the other end of the second connecting rod and one end of the hinge pull rod are pivotally connected to the second fixed seat and their pivot shafts are slidably engaged with the second guide groove. When the hinge pull rod is pulled by the traction member of the self-closing device, the hinge pull rod will drive the first fixed seat, the second fixed seat, the first connecting rod and the second connecting rod to act simultaneously, thereby driving the hinge to close.

[0008] Preferably, the hinge pull rod is provided with a third guide groove, the self-closing device is pivotally connected to the hinge pull rod, and its pivot shaft is slidably engaged with the third guide groove.

[0009] Preferably, the sliding member is also threadedly connected with an adjusting screw for pressing the fire and explosion-proof bead. The adjusting screw can be used to adjust the pressing force of the fire and explosion-proof bead on the first slider. Description of the Drawings

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the folded hinge of the present invention.

[0011] Figure 2 It is a three-dimensional structural schematic diagram of the unfolded hinge of the present invention.

[0012] Figure 3 It is an exploded view of the self-closing device of the present invention.

[0013] Figure 4 It is an exploded view of the hinge of the present invention.

[0014] Figure 5 It is a side cross-sectional view of the self-closing device of the present invention.

[0015] Figure 6 It is a top cross-sectional view of the locking member of the present invention.

[0016] Figure 7 It is a top cross-sectional view of the locking member of the present invention after the fire and explosion-proof bead bursts.

[0017] Among them, 1 - self - closing device 1, 11 - cylinder shell 11, 111 - buckling groove 111, 12 - traction member 12, 13 - reset unit 13, 14 - locking member 14, 141 - sliding member 141, 142 - positioning catch 142, 143 - first slider 143, 144 - fire and explosion - proof bead 144, 145 - adjusting screw 145, 15 - second slider 15, 16 - slide rail 16, 2 - hinge 2, 21 - first fixed seat 21, 211 - first guide groove 211, 22 - second fixed seat 22, 221 - second guide groove 221, 23 - first connecting rod 23, 24 - second connecting rod 24, 25 - hinge pull rod 25, 251 - third guide groove 251. Detailed implementation mode

[0018] The technical solution claimed in the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] See Figures 1 to 7 As shown, a non - obstructive fire - proof window - closing device in this embodiment includes a hinge 2 and a self - closing device 1 for driving the hinge 2 to close.

[0020] In this embodiment, the self - closing device 1 includes a cylinder shell 11, a traction member 12 for pulling the hinge 2, a reset unit 13 built in the cylinder shell 11 for driving the traction member 12 to contract, a locking member 14 built in the cylinder shell 11 for locking the traction member 12, a second slider 15, and a slide rail 16 that is slidably engaged with the slider and extends along the stretching direction of the traction member 12. In this embodiment, the reset unit 13 is a reset spring. The slide rail 16 is fixedly connected to the cylinder shell 11, and both ends of the second slider 15 are connected to the hinge 2 and the traction member 12 at the same time. The locking member 14 includes a sliding member 141 disposed in the cylinder shell 11 and slidably engaged with the cylinder shell 11, a positioning catch 142 pivotally connected to the sliding member 141, a first slider 143 in contact with the positioning catch 142, and a fire and explosion - proof bead 144 pressing against the slider. The cylinder shell 11 is provided with a buckling groove 111 that cooperates with the positioning catch 142 for buckling, and at the same time, the positioning catch 142 is kept buckled with the buckling groove 111 under the pressing of the slider. In this embodiment, the sliding member 141 is also threadedly connected with an adjusting screw 145 for pressing the fire and explosion - proof bead 144, and the pressing force of the fire and explosion - proof bead 144 on the first slider 143 can be adjusted by using the adjusting screw 145.

[0021] The hinge 2 includes a first fixed seat 21 and a second fixed seat 22 respectively connected to the window frame or the window sash, a first connecting rod 23, a second connecting rod 24, and a hinge pull rod 25 connected to the self - closing device 1. The first fixed seat 21 is provided with a first guide groove 211, the second fixed seat 22 is provided with a second guide groove 221, and the hinge pull rod 25 is provided with a third guide groove 251.

[0022] One end of the first connecting rod 23 is pivoted to the first fixing seat 21 and the pivot therebetween is in sliding cooperation with the first guide slot 211, and the other end of the first connecting rod 23 is pivoted to the second fixing seat 22; one end of the second connecting rod 24 is pivoted to the middle of the first connecting rod 23, and the other end of the second connecting rod 24 and one end of the hinge pull rod 25 are pivoted to the second fixing seat 22 and their pivots are in sliding cooperation with the second guide slot 221. The second slider 15 of the self-closing device 1 is pivoted to the hinge pull rod 25, and its pivot is in sliding cooperation with the third guide slot 251.

[0023] The working principle of this embodiment is as follows: under normal conditions, the positioning hook 142 of the sliding member 141 is engaged with the buckle groove 111 of the cylinder shell 11. At this time, the position of the sliding member 141 in the cylinder shell 11 is fixed so that the sliding member 141 can lock the traction member 12. At this time, the self-closing device 1 will not drive the hinge 2 to close.

[0024] When encountering fire, the fireproof explosion beads 144 burst due to the high temperature. After the first slider 143 loses the pressing effect of the fireproof explosion beads 144, the resistance effect of the first slider 143 on the positioning hook 142 also disappears at the same time. At this time, the positioning hook 142 can swing and release the buckle groove 111 to allow the sliding member 141 to slide freely in the cylinder shell 11. Under the action of the reset unit 13, the traction member 12 can pull the hinge rod 25 through the second slider 15. The hinge rod 25 will drive the first fixed seat 21 and the second fixed seat 22, and the first connecting rod 23 and the second connecting rod 24 will act at the same time to drive the hinge 2 to close.

[0025] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any technician familiar with the art can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the ideas of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A fireproof window closing device without inductance, characterized in that: It includes a hinge (2) and a self-closing device (1) for driving the hinge (2) to close. The self-closing device (1) includes a cylinder shell (11), a traction member (12) for pulling the hinge (2), a reset unit (13) built in the cylinder shell (11) for driving the traction member (12) to contract, and a locking member (14) built in the cylinder shell (11) for locking the traction member (12); wherein the locking member (14) includes a sliding member (141) arranged in the cylinder shell (11) and slidably matched with the cylinder shell (11), a positioning hook (142) pivotally connected to the sliding member (141), a first slider (143) in contact with the positioning hook (142), and a fire and explosion-proof bead (144) pressing against the slider. The cylinder shell (11) is provided with a buckle groove (111) for cooperating with the positioning hook (142) for buckling. At the same time, the positioning hook (142) is mortgaged by the slider and remains buckled with the buckle groove (111). The self-closing device (1) further includes a second slider (15) and a slide rail (16) slidably matched with the slider and extending along the stretching direction of the traction member (12). The slide rail (16) is fixedly connected to the cylinder shell (11). Both ends of the second slider (15) are connected to the hinge (2) and the traction member (12) respectively. The hinge (2) includes a first fixed seat (21), a second fixed seat (22) respectively connected to the window frame or the window sash, a first connecting rod (23), a second connecting rod (24), and a hinge pull rod (25) connected to the self-closing device (1). The first fixed seat (21) is provided with a first guide groove (211), and the second fixed seat (22) is provided with a second guide groove (221). One end of the first connecting rod (23) is pivotally connected to the first fixed seat (21), and the pivot shaft between them is slidably matched with the first guide groove (211). The other end of the first connecting rod (23) is pivotally connected to the second fixed seat (22). One end of the second connecting rod (24) is pivotally connected to the middle of the first connecting rod (23). The other end of the second connecting rod (24) and one end of the hinge pull rod (25) are pivotally connected to the second fixed seat (22), and the pivot shaft is slidably matched with the second guide groove (221). The hinge pull rod (25) is provided with a third guide groove (251). The self-closing device (1) is pivotally connected to the hinge pull rod (25), and the pivot shaft is slidably matched with the third guide groove (251). When encountering fire, the traction member (12) can pull the hinge pull rod (25) through the second slider (15), and the hinge pull rod (25) will drive the first fixed seat (21), the second fixed seat (22), the first connecting rod (23) and the second connecting rod (24) to act simultaneously, thereby driving the hinge (2) to close.

2. The non-inductive fireproof window closing device according to claim 1, characterized in that: The sliding member (141) is also threadedly connected with an adjusting screw (145) for pressing the fire and explosion-proof bead (144).

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