Disclosure of Invention
The present invention aims to solve the above technical problem at least to some extent. Therefore, the invention provides a door closer capable of generating power and having a buffering function.
The technical scheme adopted by the invention for solving the technical problems is as follows: a door closer capable of generating power comprises a fixing piece, a telescopic inner cylinder, a telescopic outer cylinder, a generator, a driving wheel and a spring door closing mechanism; one end of the telescopic inner cylinder is hinged with the fixing piece, the other end of the telescopic inner cylinder is inserted into the telescopic outer cylinder, and the telescopic inner cylinder can perform telescopic motion relative to the telescopic outer cylinder along the length direction of the telescopic inner cylinder; the generator is provided with a generator rotating shaft which extends into the telescopic outer cylinder and is connected with a driving wheel in the telescopic outer cylinder, the telescopic inner cylinder is in transmission connection with the driving wheel and drives the driving wheel to rotate through the telescopic movement of the telescopic inner cylinder relative to the telescopic outer cylinder, and the rotation of the driving wheel can drive the generator rotating shaft to rotate and generate electricity; the spring door closing mechanism is used for applying force to the telescopic inner cylinder or the telescopic outer cylinder to enable the telescopic inner cylinder to retract into the telescopic outer cylinder.
The energy-saving lamp is connected with the storage battery to obtain electric energy for illumination.
Further, the spring door closing mechanism is a first spring, one end of the first spring is connected with the telescopic inner cylinder, and the other end of the first spring is connected with the telescopic outer cylinder; the first spring always applies pulling force to the telescopic inner cylinder to enable the telescopic inner cylinder to retract into the telescopic outer cylinder.
Further, the spring door closing mechanism is a second spring, the telescopic outer barrel extends outwards to be provided with a connecting plate, one end of the second spring is connected with the fixing piece, and the other end of the second spring is connected with the connecting plate.
Furthermore, a circle of ratchets are arranged on the outer ring of the driving wheel, a row of pawls which are correspondingly matched with the ratchets are arranged on two sides of the inside of the telescopic inner cylinder in a hollow mode, the two rows of pawls are arranged in the length direction of the telescopic inner cylinder in an arrayed mode, the directions of the two rows of pawls are opposite to each other so as to respectively correspond to the front and back movement in the telescopic direction, the pawls are hinged to the inner wall of the telescopic inner cylinder, and a third spring is connected between the inner side of each.
Furthermore, the bottom surface of the telescopic inner cylinder is an opening for relative movement of the rotating shaft of the generator.
Furthermore, a positioning disc is fixedly installed in the telescopic outer cylinder, a bearing is installed on the positioning disc corresponding to the rotating shaft of the generator, and the rotating shaft of the generator is installed on the bearing in a penetrating mode.
The invention has the beneficial effects that: the driving wheel is driven to rotate through the telescopic motion of the telescopic inner cylinder relative to the telescopic outer cylinder, and the rotating shaft of the generator is driven to rotate to generate electricity, so that the recycling of the energy of opening and closing the door is realized; meanwhile, the resistance generated by the generator enables the door to be closed smoothly, so that the door and the door frame are protected, and the buffer effect is achieved.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 5, the door closer capable of generating power of the present invention includes a fixing member 1, a telescopic inner cylinder 2, a telescopic outer cylinder 3, a generator 4, a transmission wheel 5 and a spring door closing mechanism.
One end of the telescopic inner cylinder 2 is hinged to the fixing part 1, the other end of the telescopic inner cylinder is inserted into the telescopic outer cylinder 3, and the telescopic inner cylinder 2 can perform telescopic motion relative to the telescopic outer cylinder 3 along the length direction of the telescopic inner cylinder. Specifically, the fixing member 1 is plate-shaped, when the door closer is installed and used, the fixing member 1 is fixedly installed on a door frame, the fixing member 1 is provided with a hinged support 11, the end portion of the telescopic inner cylinder 2 is outwards provided with a hinged block 24, the hinged block 24 is hinged to the hinged support 11 through a rotating shaft, and during installation, the rotating axis of the hinged position is parallel to the rotating axis of the door. The telescopic inner cylinder 2 and the telescopic outer cylinder 3 are preferably cuboids, and a rectangular cavity matched with the telescopic inner cylinder 2 is arranged inside the telescopic outer cylinder 3.
The generator 4 is provided with a generator rotating shaft 41 which extends into the telescopic outer cylinder 3 and is connected with the driving wheel 5 in the telescopic outer cylinder 3, as shown in fig. 1, the top end of the generator rotating shaft 41 extends into the telescopic outer cylinder 3 and is connected with the driving wheel 5, and the driving wheel 5 is in transmission connection with the generator rotating shaft 41 through a key or other torque transmission structures. In order to improve the stability of the rotation of the generator rotating shaft 41, a positioning plate 9 is fixedly installed in the telescopic outer cylinder 3, a bearing is installed on the positioning plate 9 corresponding to the generator rotating shaft 41, the generator rotating shaft 41 penetrates through the bearing, as shown in fig. 1, the positioning plate 9 is fixedly installed on the bottom wall of the telescopic outer cylinder 3, and the generator 4 is installed in a shell 8 independent of the telescopic outer cylinder 3. In the design, the shell 8 is fixed on the door, and the telescopic outer cylinder 3 can rotate around the rotating shaft 41 of the generator relative to the shell 8.
The telescopic inner cylinder 2 is in transmission connection with the transmission wheel 5, the transmission wheel 5 is driven to rotate through the telescopic motion of the telescopic inner cylinder 2 relative to the telescopic outer cylinder 3, and the rotation of the transmission wheel 5 can drive the rotating shaft 41 of the generator to rotate and generate electricity. The transmission forms of the telescopic inner cylinder 2 and the transmission wheel 5 are various, in the embodiment, the structure is adopted, a circle of ratchets 51 are arranged on the outer ring of the transmission wheel 5, the inner part of the telescopic inner cylinder 2 is hollow, two rows of pawls 21 which are correspondingly matched with the ratchets 51 are respectively arranged on two sides of the inner part of the telescopic inner cylinder 2, the two rows of pawls 21 are arranged in a row along the length direction of the telescopic inner cylinder 2, the directions of the two rows of pawls 21 are opposite to each other so as to respectively correspond to the front and back movements in the telescopic direction, the pawls 21 are hinged with the inner wall of the telescopic inner cylinder 2, a third spring 22 is connected between the inner side of the pawls 21 and the inner wall of the telescopic inner cylinder 2, as shown in fig. 3 and 4, the inner end part of the left pawl 21 is hinged on the inner wall of the telescopic inner cylinder 2, the end part of the left pawl 21 is crescent-shaped, the end part of the left pawl 21 is arranged downwards, and the right pawl 21 only faces opposite to the left pawl. As shown in fig. 4, the pawl 21 has its outer end corresponding to the position of the ratchet 51 in the vertical direction when acted upon by only the third spring 22. When the telescopic inner cylinder 2 extends into the telescopic outer cylinder 3, the right pawl leans against the ratchet 51 and is extruded by the ratchet 51 to rotate inwards, the end part of the outer end of the left pawl 21 is contacted with the ratchet 51 and acts to drive the transmission wheel 5 to rotate, on the contrary, when the telescopic inner cylinder 2 extends out of the telescopic outer cylinder 3, the right pawl 21 acts to drive the transmission wheel 5 to rotate anticlockwise (see fig. 3), and the rotating direction of the transmission wheel is the same as that when the telescopic inner cylinder 2 extends into the telescopic outer cylinder 3. When the telescopic inner cylinder 2 is telescopic, the concessional purpose of avoiding the generator rotating shaft 41 needs to be designed, in this embodiment, as shown in fig. 1 and fig. 2, the bottom surface and the right side surface of the telescopic inner cylinder 2 are openings for the generator rotating shaft 41 to move. Of course, in other embodiments, a concession slot extending along the length of the bottom wall of the telescopic inner cylinder 2 can be designed to achieve the same technical effect. In other embodiments, the transmission form of the telescopic inner cylinder 2 and the transmission wheel 5 can also be a form of a gear and a rack, a spur rack is arranged on one side of the telescopic inner cylinder 2, and the transmission wheel 5 is a gear which is matched and meshed with the spur rack, so that the telescopic inner cylinder 2 can drive the transmission wheel 5 to rotate.
The spring door closing mechanism is used for applying force to the telescopic inner cylinder 2 or the telescopic outer cylinder 3 to enable the telescopic inner cylinder 2 to retract into the telescopic outer cylinder 3, in the embodiment, as shown in fig. 3, the spring door closing mechanism is a first spring 23, one end of the first spring 23 is connected with the telescopic inner cylinder 2, and the other end of the first spring 23 is connected with the inner end of the telescopic outer cylinder 3; the first spring 23 always applies a pulling force to the telescopic inner cylinder 2 to make it retract into the telescopic outer cylinder 3. As another embodiment of the spring door closing mechanism, as shown in fig. 5, the spring door closing mechanism is a second spring 32, the telescopic outer cylinder 3 is provided with a connecting plate 31 extending outward, one end of the second spring 32 is connected to the fixing member 1, the other end is connected to the connecting plate 31, the second spring 32 applies a pulling force to the telescopic inner cylinder 2 to retract the telescopic inner cylinder 3, and the connecting plate 31 is preferably provided at the upper end of the telescopic outer cylinder 3.
In this embodiment, in order to facilitate night illumination, the energy-saving lamp 7 and the storage battery 6 are further included in the design, the storage battery 6 is connected with the generator 4 to store electric energy, the energy-saving lamp 7 is connected with the storage battery 6 to obtain electric energy for illumination, the storage battery 6 is installed in the shell 8, and the energy-saving lamp 7 is installed on the outer wall of the shell 8. The energy-saving lamp 7 is mainly used for getting up at night, only weak light is needed for not influencing sleep, the required electric energy is small, and therefore the electric quantity generated by opening and closing the door is enough.
The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.