The lighting and ventilation skylight
Technical field
The utility model relates to a kind of lighting and ventilation skylight.
Background technology
At present, all be provided with the skylight on the roof in many workshops in the factory, the skylight that has only is used for ventilation, and the skylight that has not only had been used for ventilation but also be used for carrying out daylighting.Four facades that above-mentioned skylight all has end face basically and is connected as a single entity with end face, on facade, be provided with movable sash, be connected the switch that mechanical type window-opening mechanism on the sash is realized sash by manually-operated, the on-off ratio in this skylight is effort, the complex structure of window-opening mechanism has improved the cost of manufacture in whole skylight.
The utility model content
The technical problems to be solved in the utility model is at above-mentioned defective, provides a kind of simple in structure, and cost of manufacture is low, the lighting and ventilation skylight that switch is convenient and strength-saving.
For solving the problems of the technologies described above, the utility model lighting and ventilation skylight, comprise skeleton and be connected the end face of the printing opacity on the skeleton and the facade of printing opacity, end face and facade are connected as a single entity and surround a room body, facade is provided with movable sash, its design feature is: be connected with the power transmission shaft that can rotate on the described skeleton and be hinged with the push-down motor, be connected with connecting lever and connecting rod on the power transmission shaft, the other end of connecting lever and push-down motor are hinged, the other end and the sash of connecting rod are hinged, and the push-down motor is controlled by control circuit.
When windowing, give push-down motor signal by control circuit, the push-down motor begins to put away sports equipment, and rotates thereby drive connecting lever, and connecting lever rotates and orders about the power transmission shaft rotation, and the power transmission shaft drivening rod rotates, and connecting rod upwards promotes movable sashes, plays the purpose of windowing; When needing to close window, give push-down motor signal, the push-down motor begins boom and drives the connecting lever backward rotation, and counter-rotational connecting lever orders about the power transmission shaft counter-rotating, thereby drivening rod spurs movable sashes downwards, plays the purpose of closing window.Be not difficult to find out that from the switching process of above-mentioned sash the lighting and ventilation skylight structure of said structure is simple, cost of manufacture is low, and switch is convenient and strength-saving.
After the sash switch put in place, because misoperation, the push-down motor also may burn out in order to prevent the push-down motor because of overload burns out, and is connected with position limit arm on the described power transmission shaft, and the both sides of position limit arm are provided with upper limit device and lower retainer.When sash reached maximum, position limit arm contacted the upper limit device simultaneously, and push-down motor outage automatically quits work; Close when tight when sash, position limit arm contacts lower retainer simultaneously, and push-down motor outage automatically quits work.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:
Fig. 1 is a perspective view of the present utility model;
Fig. 2 be Fig. 1 along A-A to sectional view;
Fig. 3 be Fig. 2 along B-B to sectional view.
The specific embodiment
Lighting and ventilation skylight shown in Figure 1 is the room body that the facade 2 of four printing opacities that are connected as a single entity by the end face 1 of printing opacity with end face 1 surrounds, end face 1 and facade 2 are connected on the skeleton 4, end face 1 is an arc, and end face 1 and facade 2 are made by sunlight board., facade 2 is provided with movable sash 3.As Fig. 2, shown in Figure 3, on skeleton 4, be connected with the power transmission shaft 5 that can rotate and be hinged with push-down motor 6, be connected with connecting lever 7, connecting rod 8 and position limit arm 9 on the power transmission shaft 5, the other end of connecting lever 7 and push-down motor 6 are hinged, and the other end of connecting rod 8 and sash 3 are hinged, and the both sides of position limit arm 9 are provided with upper limit device 10 and the lower retainer 11 that is fixed on the skeleton 4, push-down motor 6 is controlled by control circuit, control circuit is a prior art, and push-down motor 6 is an existing goods, all repeats no more at this.3 of sash shown in the accompanying drawing are located on the side elevation, also can be located at certainly on the end facade, more can all establish on four facades.