阅读说明：本技术 一种可自动关闭的防火窗 (Fire window capable of being automatically closed ) 是由 冯杰慧 于 2020-08-02 设计创作，主要内容包括：本发明提供了一种可自动关闭的防火窗,包括窗框、窗户、滑轮、拉绳、蜗轮、蜗杆、支撑板、外壳、第一横板、连杆、第二横板、限位挡块、螺旋弹簧、圆筒、活塞以及顶杆,蜗杆可转动地连接于两块支撑板之中且与蜗轮啮合,连杆的一端与第一横板的中部固定连接,第二横板的中部与连杆的另一端固定连接,螺旋弹簧的一端与外壳的内腔底面固定连接,另一端与第二横板的底部固定连接,圆筒的一端固定安装在外壳的内腔顶面上,活塞与圆筒的内壁滑动密封连接以形成一个密封腔室,密封腔室之中填充有受热膨胀物质,顶杆的一端与活塞固定连接,另一端位于第二横板的正上方。本发明可以使防火窗在火灾发生时自动关闭,其整体结构简单。(The invention provides a fire window capable of being automatically closed, which comprises a window frame, a window, a pulley, a pull rope, a worm gear, a worm, a supporting plate and a shell, the worm is rotatably connected between the two support plates and meshed with the worm wheel, one end of the connecting rod is fixedly connected with the middle of the first transverse plate, the middle of the second transverse plate is fixedly connected with the other end of the connecting rod, one end of the spiral spring is fixedly connected with the bottom surface of the inner cavity of the shell, the other end of the spiral spring is fixedly connected with the bottom of the second transverse plate, one end of the cylinder is fixedly installed on the top surface of the inner cavity of the shell, the piston is connected with the inner wall of the cylinder in a sliding and sealing mode to form a sealed cavity, the sealed cavity is filled with heated expansion substances, one end of the ejector rod is fixedly connected with the piston, and the other end of the ejector rod is located over the second transverse plate. The invention can automatically close the fire window when a fire disaster happens, and the whole structure is simple.)

1. A fire window capable of being automatically closed comprises a window frame, a window, pulleys and a pull rope, wherein one end of the window is hinged to the upper portion of the window frame through a hinge, the pulleys are fixedly arranged at the top end of the window frame, the pull rope is wound on a groove of the pulleys, one end of the pull rope is fixedly arranged at the other end of the window, the fire window is characterized by further comprising a worm wheel, a worm, a supporting plate, a shell, a first transverse plate, a connecting rod, a second transverse plate, a limit stop block, a spiral spring, a cylinder, a piston and a push rod, the two supporting plates are arranged on the supporting plates and are parallel to each other, the worm wheel is rotatably connected onto the window frame through a rotating shaft, the other end of the pull rope is fixedly arranged on the rotating shaft, the worm penetrates through the two supporting plates and is rotatably connected into the two supporting plates and is meshed, one end of each of the two support plates is fixedly connected with two ends of the first transverse plate respectively, one end of each of the connecting rods is fixedly connected with the middle of the first transverse plate, the other end of each of the connecting rods penetrates through the shell and is positioned in the inner cavity of the shell, the middle of the second transverse plate is fixedly connected with the other end of each of the connecting rods, the limiting blocks are fixedly arranged on the connecting rods and are positioned in the inner cavity of the shell, one end of each of the spiral springs is fixedly connected with the bottom surface of the inner cavity of the shell, the other end of each of the spiral springs is fixedly connected with the bottom of the second transverse plate, one end of each of the cylinders is closed and is open, one end of each cylinder is fixedly arranged on the top surface of the inner cavity of the shell and is positioned on two sides of the connecting rod, the open end of each cylinder is opposite, one end of the ejector rod is fixedly connected with the piston, and the other end of the ejector rod is located right above the second transverse plate.

2. A self-closing fire protection window as claimed in claim 1, wherein the thermally expansive substance is paraffin.

3. An automatically closable fire window according to any of the preceding claims, wherein the thermally expandable substance is expanded graphite.

4. A self-closing fire window according to any preceding claim, wherein the window frame is made of an aluminium alloy material.

5. An automatically closable fire window according to any of the preceding claims, wherein the outer casing is hollow square tube shaped and made of an aluminium alloy material.

6. The self-closing fire protection window of any one of the preceding claims, wherein the first and second cross panels are parallel to one another.

7. An automatically closable fire window according to any of the preceding claims, wherein the helix angle of the worm is less than the angle of friction of the worm gear contact.

Technical Field

The invention relates to the technical field of doors and windows, in particular to a fireproof window capable of being automatically closed.

Background

A fire refers to a disaster caused by combustion that is out of control in time or space. Among the various disasters, fire is one of the main disasters that threaten public safety and social development most often and most generally. Three conditions are required for the formation of a fire: combustible materials, air and fire sources, and fire extinguishing is usually carried out by methods of suffocation, cooling, fire species removal and the like after a fire occurs. When a fire occurs, the indoor temperature reaches 400 ℃ and gradually rises, and it is necessary to take fire prevention measures to control the spread or spread of the fire. Most of the existing fire windows adopt an automatic detection and control system to close the window when a fire disaster happens, and the existing fire windows are complex in structure and high in cost.

Disclosure of Invention

In order to overcome the problems that the conventional fire window is mostly closed by adopting an automatic detection and control system when a fire disaster happens, the structure is complex and the cost is high, the invention provides the fire window capable of being automatically closed, and the specific technical scheme is as follows:

a fire window capable of being automatically closed comprises a window frame, a window, pulleys and a pull rope, wherein one end of the window is hinged to the upper portion of the window frame through a hinge, the pulleys are fixedly arranged at the top end of the window frame, the pull rope is wound on a groove of the pulleys, one end of the pull rope is fixedly arranged at the other end of the window, the fire window further comprises a worm wheel, a worm, a supporting plate, a shell, a first transverse plate, a connecting rod, a second transverse plate, a limit stop block, a spiral spring, a cylinder, a piston and a push rod, the supporting plate is provided with two supporting plates which are parallel to each other, the worm wheel is rotatably connected onto the window frame through a rotating shaft, the other end of the pull rope is fixedly arranged on the rotating shaft, the worm penetrates through the two supporting plates and is rotatably connected into the two supporting plates and is meshed, one end of each of the two support plates is fixedly connected with two ends of the first transverse plate respectively, one end of each of the connecting rods is fixedly connected with the middle of the first transverse plate, the other end of each of the connecting rods penetrates through the shell and is positioned in the inner cavity of the shell, the middle of the second transverse plate is fixedly connected with the other end of each of the connecting rods, the limiting blocks are fixedly arranged on the connecting rods and are positioned in the inner cavity of the shell, one end of each of the spiral springs is fixedly connected with the bottom surface of the inner cavity of the shell, the other end of each of the spiral springs is fixedly connected with the bottom of the second transverse plate, one end of each of the cylinders is closed and is open, one end of each cylinder is fixedly arranged on the top surface of the inner cavity of the shell and is positioned on two sides of the connecting rod, the open end of each cylinder is opposite, one end of the ejector rod is fixedly connected with the piston, and the other end of the ejector rod is located right above the second transverse plate.

Optionally, the thermally expansive substance is paraffin.

Optionally, the thermally expandable material is expanded graphite.

Optionally, the window frame is made of an aluminum alloy material.

Optionally, the housing is in a hollow square tube shape and made of an aluminum alloy material.

Optionally, the first transverse plate and the second transverse plate are parallel to each other.

Optionally, the helix angle of the worm is less than the friction angle of the worm gear contact.

The beneficial effects obtained by the invention comprise: through setting up worm, worm wheel, coil spring, drum, piston and ejector pin, not only can make the worm wheel and worm mesh better together in order to adjust the window aperture, can also make fire window self-closing when the conflagration takes place, avoid the intensity of a fire to stretch, its overall structure is simple, and the cost is lower, is fit for promoting.

Drawings

The present invention will be further understood from the following description taken in conjunction with the accompanying drawings, the emphasis instead being placed upon illustrating the principles of the embodiments.

Fig. 1 is a schematic view of an overall structure of an automatically closable fire window according to an embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic diagram of the structural relationship among the cylinder, the piston and the ram in the embodiment of the present invention.

Description of reference numerals:

1. a window frame; 2. a window; 3. a pulley; 4. a worm gear; 5. a worm; 6. a support plate; 7. pulling a rope; 8. a housing; 9. a first transverse plate; 10. a connecting rod; 11. a second transverse plate; 12. a limit stop block; 13. a cylinder; 14. a coil spring; 15. a piston; 16. a top rod; 17. the chamber is sealed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof.

The invention relates to a fire window capable of being automatically closed, which explains the following embodiments according to the attached drawings: