Semi-automatic smoke exhaust window opening device

Abstract

The invention discloses a semi-automatic smoke exhaust window opening device, comprising: a pulley block, a steel wire rope, a window opener connecting rod, a start switch and a counterweight block; the pulley block comprises an upper pulley, a lower pulley, a window opener connecting rod pulley and a start switch pulley which are linked by a steel wire rope, the window opener connecting rod pulley is connected to the smoke exhaust window through the window opener connecting rod, a start switch for limiting the pulley block is installed on the start switch pulley, and a counterweight block is connected to the steel wire rope; in the initial state, the counterweight block is in a high position and is limited by the start switch, and the smoke exhaust window is closed; when the start switch releases the limit, the counterweight block moves downward and drives the smoke exhaust window to open through the window opener connecting rod. When the present invention is used, a person turns on the start switch, and then the device does not need electricity, does not need fire detection and linkage control system, and only uses the gravitational potential energy stored in the mechanism to complete the opening of the smoke exhaust window; it has the advantages of simple structure, convenient installation and low investment.

Description

Technical Field

[0001] The invention relates to the technical field of building smoke exhaust facilities, and in particular to a semi-automatic smoke exhaust window opening device. Background Art

[0002] Smoke exhaust windows are commonly used facilities in buildings. In order to meet the requirements of the "Technical Standard for Building Smoke and Exhaust Systems" (GB51251-2017) for smoke exhaust in the event of a building fire, each building usually has one or more smoke exhaust windows. The smoke exhaust windows are usually closed. In the event of a fire, the smoke exhaust windows need to be opened with the help of a manual opening device or an electric opening device.

[0003] In the current related technologies, there are roughly two types of opening devices for smoke exhaust windows. One is a manual opening device, which must be equipped with a manual mechanical opening device. The handle is manually cranked, and the manual cranking action is transmitted to the smoke exhaust window opening rod through a connecting rod, and finally the smoke exhaust window is opened; the other is an electric opening device, which must be equipped with an electric window opening device, a fire detection device, a fire alarm, and a linkage controller. First, the fire detection device detects the fire signal and transmits the signal to the fire alarm. The fire alarm sends a signal to the linkage controller, and the linkage controller controls the electric window opener to open the smoke exhaust window.

[0004] Among the current related technologies, the advantages of manual opening devices are simple structure, easy installation and low investment. The disadvantages are that manual opening devices require human operation. When a fire occurs, the first reaction of personnel is to evacuate, and it is difficult to ensure that someone will manually operate the smoke exhaust window to open it. The advantage of electric opening devices is that they do not require human intervention, automatically detect fire and open windows when a fire occurs. The disadvantages are that they require the configuration of a fire-fighting power system and a complete set of fire detection linkage control systems. The investment is large, the installation is complicated, the reliability is reduced when not used for a long time, and there is a possibility of false alarm and false opening. Summary of the invention

[0005] In order to overcome the shortcomings of manual opening devices that require someone to be present to continuously shake the handle to operate, and the shortcomings of electric opening devices that the system is complex, the investment is large, the installation is complicated, and the maintenance is difficult, the present invention provides a semi-automatic smoke exhaust window opening device. When in use, a person turns on the starting switch, and then the device does not require electricity, does not require fire detection and linkage control system, and only uses the gravitational potential energy stored in the mechanism to complete the opening of the smoke exhaust window; it has the advantages of simple structure, easy installation and low investment of manual opening devices, and has the advantage of automatically completing the opening action after the electric opening device is started, without the need for human intervention.

[0006] The invention discloses a semi-automatic smoke exhaust window opening device, comprising: a pulley block, a steel wire rope, a window opener connecting rod, a start switch and a counterweight block;

[0007] The pulley block includes an upper pulley, a lower pulley, a window opener connecting rod pulley and a start switch pulley which are linked by the steel wire rope, the window opener connecting rod pulley is connected to the smoke exhaust window through the window opener connecting rod, the start switch pulley is installed with the start switch for limiting the pulley block, and the steel wire rope is connected with a counterweight block;

[0008] In the initial state, the counterweight block is in a high position and is limited by the start switch, and the smoke exhaust window is closed; when the start switch is released from the limit, the counterweight block moves downward and drives the smoke exhaust window to open through the window opener connecting rod.

[0009] As a further improvement of the present invention, the window opener connecting rod pulley and the starting switch pulley are double pulley structures, the steel wire rope is passed around the upper pulley and the lower pulley, and the counterweight block is installed on the steel wire rope, the upper end of the steel wire rope is passed around the upper pulley and fixed to the left pulley of the window opener connecting rod pulley and the starting switch pulley, and the lower end of the steel wire rope is passed around the lower pulley and fixed to the right pulley of the window opener connecting rod pulley and the starting switch pulley.

[0010] As a further improvement of the present invention, the starting switch includes a "Z"-shaped hand crank handle and a limiter, and the limiter is installed on the starting switch pulley; the "Z"-shaped hand crank handle can be plugged and unplugged to the limiter, and the "Z"-shaped hand crank handle is inserted to limit the pulley group, and the counterweight block can be in a high position; the "Z"-shaped hand crank handle is pulled out to release the limit on the pulley group, and the counterweight block moves downward under the action of its own weight, and then drives the smoke exhaust window to open through the wire rope, the window opener connecting rod pulley and the window opener connecting rod in sequence.

[0011] As a further improvement of the present invention, it also includes: a frame;

[0012] The pulley block, steel wire rope, window opener connecting rod and counterweight are placed in the frame, and one end of the starting switch is exposed.

[0013] As a further improvement of the present invention, the upper pulley, the lower pulley, the window opener connecting rod pulley and the start switch pulley are metal pulleys.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The semi-automatic smoke exhaust window opening device of the present invention triggers the mechanical device by the switch button to open the smoke exhaust window, and there is no need to manually shake the handle for a long time to open the smoke exhaust window;

[0016] 2. The present invention is a smoke exhaust window opening device composed entirely of mechanical components. It does not require power supply during operation and does not require the installation of complex systems such as fire detection, fire alarm and linkage control. It has the advantages of low investment, easy installation, simple maintenance, and convenient and quick startup. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side elevation view of the semi-automatic smoke exhaust window opening device disclosed in the present invention;

[0018] Figure 2 It is a front elevation view of the semi-automatic smoke exhaust window opening device disclosed in the present invention.

[0019] In the figure:

[0020] 1. Upper pulley; 2. Frame; 3. Window opener connecting rod; 4. Window opener connecting rod pulley; 5. Counterweight; 6. Wire rope; 7. Start switch; 8. Start switch pulley; 9. Lower pulley; 10. Smoke exhaust window; 11. Wall. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0023] like Figure 1 , 2 As shown, the present invention provides a semi-automatic smoke exhaust window opening device, which is used to open the smoke exhaust window 10 installed at a preset window of the wall 11; wherein, the semi-automatic smoke exhaust window opening device comprises: a frame 2 and a pulley block, a wire rope 6, a window opener connecting rod 3, a start switch 7 and a counterweight block 5 which are all or partly installed in the frame 2; wherein,

[0024] The pulley block of the present invention comprises an upper pulley 1, a lower pulley 9, a window opener connecting rod pulley 4 and a start switch pulley 8 which are linked by a wire rope 6. Preferably, the upper pulley 1 and the lower pulley 9 are single pulley structures, the window opener connecting rod pulley 4 and the start switch pulley 8 are double pulley structures, and the upper pulley 1, the window opener connecting rod pulley 4, the start switch pulley 8 and the lower pulley 9 are arranged in sequence from top to bottom, and the above pulley blocks are all fixed pulleys, which are all fixed to the frame 2 through a wheel axle; specifically, The wire rope 6 passes around the upper pulley 1 and the lower pulley 9, and the upper end of the wire rope 6 is fixed on the left pulley of the window opener connecting rod pulley 4 and the starting switch pulley 8, and the lower end of the wire rope 6 is fixed on the right pulley of the window opener connecting rod pulley 4 and the starting switch pulley 8. Based on this, the upper pulley 1, the window opener connecting rod pulley 4, the starting switch pulley 8 and the lower pulley 9 can be driven to rotate by the wire rope, or based on the rotation of any pulley, the other pulleys can be driven to rotate by the wire rope.

[0025] The window opener connecting rod pulley 4 of the present invention is connected to the smoke exhaust window 10 through the window opener connecting rod 3, so that the rotation of the window opener connecting rod pulley 4 can drive the smoke exhaust window 10 to open or close through the window opener connecting rod 3; a counterweight block 5 is connected to the wire rope 6, and when the counterweight block 5 moves from a high position to a low position under the action of its own weight, it can drive the window opener connecting rod pulley 4 to rotate, thereby realizing the opening or closing of the smoke exhaust window 10. In order to limit the counterweight 5 when it is in a high position, the present invention installs a starting switch 7 for limiting the pulley group on the starting switch pulley 8; specifically, the starting switch 7 includes a "Z"-shaped hand crank handle and a limiter, and the limiter is installed on the starting switch pulley 8; the "Z"-shaped hand crank handle is pluggable and connected to the limiter, and the "Z"-shaped hand crank handle is inserted to limit the pulley group, and the counterweight 5 can be in a high position; pull out the "Z"-shaped hand crank handle to release the limit on the pulley group, and the counterweight 5 moves downward under the action of its own weight, and then drives the smoke exhaust window 10 to open through the wire rope 6, the window opener connecting rod pulley 4 and the window opener connecting rod 3 in turn.

[0026] Working principle of the present invention:

[0027] In the initial state, the counterweight block 5 is in a high position and the "Z"-shaped hand crank handle is inserted into the limiter to limit the pulley block, and the smoke exhaust window is closed;

[0028] When opening, pull out the "Z"-shaped hand crank handle from the limiter to solve the limit of the pulley group. At this time, the counterweight block 5 moves downward under the action of its own weight, and then drives the smoke exhaust window 10 to open through the wire rope 6, the window opener connecting rod pulley 4 and the window opener connecting rod 3 in sequence.

[0029] Example:

[0030] The upper pulley 1 of the present invention is a metal pulley with a diameter of 170 mm. The steel wire rope 6 is wrapped around the upper pulley 1 to change the pulling direction of the steel wire rope 6.

[0031] The frame 2 of the present invention includes an aluminum plate shell and a steel structure body, which is the supporting skeleton and shell of the whole device. The steel structure body is welded from 40 angle steel profiles and bears the entire weight of the device. The axles of the upper pulley 1, the window opener connecting rod pulley 4, the start switch pulley 8 and the lower pulley 9 are fixed on the steel structure body. The aluminum plate shell is formed by pressing a 4mm post-spraying aluminum plate and fixed to the outside of the steel structure body to form the shell of the whole device.

[0032] The window opener connecting rod 3 of the present invention is a connecting rod connecting the window opener connecting rod pulley 4 and the smoke exhaust window 10. When the window opener connecting rod pulley 4 rotates, the window opener connecting rod 3 is driven to move and the smoke exhaust window 10 is opened.

[0033] The window opener connecting rod pulley 4 of the present invention is a metal double pulley with a diameter of 65mm. The double pulleys are fixed to the wheel axle and rotate together when subjected to force; the upper wire rope is fixed to the left pulley and wound for 2m; the lower wire rope is fixed to the right pulley and wound for 2m.

[0034] The counterweight 5 of the present invention is a cast iron or steel accessory, weighing 10kg-15kg, and has steel wire ropes 6 fixed to the top and bottom of the counterweight 5. When the counterweight 5 is at a high position, it stores gravitational potential energy; when it descends, it converts the gravitational potential energy into kinetic energy.

[0035] The steel wire rope 6 of the present invention has a diameter of 2 mm and is a power transmission component of the device. It passes around the upper pulley 1 and the lower pulley 9 to transmit the kinetic energy generated by the descent of the counterweight 5 to various accessories.

[0036] The starting switch 7 of the present invention is composed of a "Z"-shaped hand crank and a limiter. When the "Z"-shaped hand crank is rotated clockwise, the counterweight 5 can be lifted to a high position; when starting, the handle is pulled out of the limiter, the gravitational potential energy of the counterweight 5 is released, and the wire rope 6 is pulled to move.

[0037] The starting switch pulley 8 of the present invention is a metal double pulley with a diameter of 65mm. Both pulleys are fixed to the wheel axle and rotate together when subjected to force; the upper wire rope is fixed to the left pulley and wound for 2m; the lower wire rope is fixed to the right pulley and wound for 2m.

[0038] The lower pulley 9 of the present invention is a metal pulley with a diameter of 170 mm. The steel wire rope 6 is wound around the lower pulley 9 to change the pulling direction of the steel wire rope.

[0039] When using:

[0040] In the initial state, the start switch 7 of the present invention is in a limited position, the counterweight 5 is located at a high position, and the system stores gravitational potential energy to be started. When the system needs to be started, the handle of the start switch 7 is pulled out or pulled out, the start switch 7 is released from the limited position, and the system starts.

[0041] After the system completes the opening action of the smoke exhaust window, it needs to be reset. Manually shake the handle of the starting switch 7, and the steel wire rope 6 bypasses the upper pulley 1 to pull the counterweight block 5 back to a high place to store gravitational potential energy. After resetting, the handle of the starting switch 7 is stuck in the limiter, and the starting switch 7 is in a limited state.

[0042] The advantages of the present invention are:

[0043] 1. The semi-automatic smoke exhaust window opening device of the present invention triggers the mechanical device by the switch button to open the smoke exhaust window, and there is no need to manually shake the handle for a long time to open the smoke exhaust window;

[0044] 2. The present invention is a smoke exhaust window opening device composed entirely of mechanical components. It does not require power supply during operation and does not require the installation of complex systems such as fire detection, fire alarm and linkage control. It has the advantages of low investment, easy installation, simple maintenance, and convenient and quick startup.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A semi-automatic smoke exhaust window opening device, characterized in that: include: Pulleys, wire ropes, window opener connecting rods, start switches and counterweights; The pulley block comprises an upper pulley, a lower pulley, a window opener connecting rod pulley and a start switch pulley which are linked to each other by the steel wire rope, the window opener connecting rod pulley is connected to the smoke exhaust window through the window opener connecting rod, the start switch pulley is installed with the start switch pulley for limiting the pulley block, and the steel wire rope is connected with a counterweight block; the pulley blocks are all fixed pulleys, the window opener connecting rod pulley and the start switch pulley are double pulley structures, the upper end of the steel wire rope is fixed to the left pulley of the window opener connecting rod pulley and the start switch pulley after passing through the upper pulley, and the lower end of the steel wire rope is fixed to the right pulley of the window opener connecting rod pulley and the start switch pulley after passing through the lower pulley; In the initial state, the counterweight block is in a high position and is limited by the start switch, and the smoke exhaust window is closed; when the start switch is released from the limit, the counterweight block moves downward and drives the smoke exhaust window to open through the window opener connecting rod.

2. The semi-automatic smoke exhaust window opening device according to claim 1, characterized in that: The starting switch includes a "Z"-shaped hand crank and a limiter, and the limiter is installed on the starting switch pulley; the "Z"-shaped hand crank can be plugged and unplugged to the limiter, and the "Z"-shaped hand crank handle is inserted to limit the pulley group, and the counterweight block can be in a high position; the "Z"-shaped hand crank handle is pulled out to release the limit on the pulley group, and the counterweight block moves downward under the action of its own weight, and then drives the smoke exhaust window to open through the wire rope, the window opener connecting rod pulley and the window opener connecting rod in turn.

3. The semi-automatic smoke exhaust window opening device according to claim 1, characterized in that: Also includes: frame; The pulley block, steel wire rope, window opener connecting rod and counterweight are placed in the frame, and one end of the start switch is exposed.

4. The semi-automatic smoke exhaust window opening device according to claim 1, characterized in that: The upper pulley, the lower pulley, the window opener connecting rod pulley and the start switch pulley are metal pulleys.

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