hydraulic door closer
A door closer and hydraulic technology, which is applied in door/window accessories, switches with braking devices, buildings, etc., can solve the problems of hard door closing, labor-saving, inadaptability, and loud door closing sound, and achieve improved rotation stability High performance, improved operability, and soft door opening and closing sounds
Active Publication Date: 2020-09-22
温州欧德门控科技发展有限公司
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Problems solved by technology
[0004] However, the following problems exist through the cooperation of the gear and the rack. During the transmission process of the gear and the rack, the sound of closing the door will be louder, and the closing of the door will be stiff and labor-saving, which will cause certain incompatibility in the use process.
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Embodiment Construction
[0041] The hydraulic door closer will be further described with reference to the accompanying drawings.
[0042] A hydraulic door closer, such as figure 1 and figure 2 As shown, it includes a housing 1, a piston 2, a front end cover 3, a rear end cover 4, a first rotating wheel 6, a second rotating wheel 7 and a camshaft 5 for connecting the arm assembly; the front end cover 3 and the rear end cover 4 They are respectively arranged on both sides of the housing 1, and a cavity 11 for storing hydraulic oil is formed between the housing 1; combined with image 3 As shown, the piston 2 is arranged in the cavity 11 and is in sliding and sealing connection with the inner wall of the housing 1, so that a first cavity 12 is formed between the piston 2 and the front end cover 3, and a first cavity 12 is formed between the piston 2 and the rear end cover 4. the second cavity 13 .
[0043] Such as figure 2 As shown, wherein, a mounting cavity 21 is provided in the piston 2, and the f...
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The invention discloses a hydraulic door closer, which relates to the technical field of door closers and comprises a housing, a piston, a front end cover, a rear end cover, a cam, a first one-way valve, a second one-way valve, a first rotating wheel and For the second rotating wheel, a cavity filled with hydraulic oil is arranged in the casing, the piston is arranged in the cavity and is connected to the inner wall of the casing in a sliding and sealing manner, a first cavity is formed between the piston and the front end cover, and the piston and the rear end cover A second cavity is formed between them, the cam is arranged between the first rotating wheel and the second rotating wheel, and is in conflict with the circumferential surfaces of the first rotating wheel and the second rotating wheel respectively, and an arc-shaped groove is opened on the cam , when the door is closed, the first rotating wheel is placed in the arc-shaped groove, and the second rotating wheel is in contact with the convex part of the cam. When the door is opened to the maximum angle, the first rotating wheel is in contact with the side of the cam convex part side, the second rotating wheel is in contact with one side of the arc-shaped slot; it has the effect of making the sound of opening and closing the door soft and improving its operability.
Description
technical field [0001] The invention relates to the technical field of door closers, more specifically, it relates to a hydraulic door closer. Background technique [0002] As a necessary facility for modern buildings, door closers have been widely used in various fields of society. With the continuous development and progress of society, the country has higher and higher requirements for fire protection and security. Many access doors and fire doors need to be equipped with door closers; the door closer is a hydraulic device similar to a spring on the door head. After opening, it can be compressed and released to automatically close the door. It has the effect of a spring door, which can ensure that the door is accurately and timely closed to the initial position after being opened. [0003] The internal structure of the door closer is a secret world that operates at any time and stably; the arm assembly is installed together with the door closer, and the arm assembly is c...
Claims
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IPC IPC(8): E05F15/50E05F3/04E05F3/12
Inventor 陈招胜陆际泽
Owner 温州欧德门控科技发展有限公司