Door closer capable of adjusting spring pressure for security and protection
A technology of spring pressure and door closers, which is applied to switches with braking devices, door/window accessories, wing leaf parts, etc., to improve service life, realize adjustments, and avoid mismatching effects
Inactive Publication Date: 2021-02-12
SUZHOU JINCHUANG INTERNET TECH CO LTD
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Problems solved by technology
[0004] The technical problem mainly solved by the present invention is to provide a door closer with adjustable spring pressure for security. The present invention includes a housing and an outer cover. The outer cover is detachably connected to the housing, and the outer cover can be removed after use. The cover is disassembled, which is convenient for later maintenance and improves the service life; the spring pressure adjustment structure inside the shell is adjusted, so that the door closer can adjust the spring pressure according to the actual situation of the door body during installation, so as to realize the closing of the door body The speed adjustment avoids the mismatch between the door closer and the door body, and ensures the smooth closing of the door body
Method used
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[0026] A door closer with adjustable spring pressure for security, such as Figure 1 to Figure 3 As shown: it includes a housing 10 and an outer cover 20, the outer cover and the housing are threadedly connected, and a telescopic rod 30 is provided inside the housing, and the output end of the telescopic rod extends to the outside of the outer cover and is fixedly connected There is a fixed block 31, the bottom end of the fixed block is provided with a slider 50, the housing is fixedly installed on the surface of the door frame, and the upper end of the door body is provided with a chute slidingly connected with the slider.
[0027] The end of the telescopic rod far away from the outer cover is provided with a piston 60, the piston has an oil hole 61 passing through both axial ends of the piston, a sealing layer 62 is provided on the circumferential surface of the piston, and the piston is close to the outer cover. One side of the cover is connected with a spring 70, and the o...
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Abstract
The invention discloses a door closer capable of adjusting spring pressure for security and protection. The door closer comprises a shell and an outer cover, wherein the outer cover is detachably connected with the shell, the outer cover can be detached after being used, later maintenance is facilitated, and the service life is prolonged; and a spring pressure adjusting structure in the shell is adjusted, so that the door closer can adjust the spring pressure according to the actual situation of a door body during mounting, the closing speed of the door body is adjusted, the problem that the door closer is not matched with the door body is solved, and smooth closing of the door body is guaranteed.
Description
technical field [0001] The invention belongs to the technical field of security inspection and security, in particular to a door closer with adjustable spring pressure for security. Background technique [0002] The door closer is a spring-like hydraulic device on the door head. When the door is opened, it can be compressed and released to automatically close the door. It has the function of a spring door, which can ensure that the door is closed to the initial position accurately and timely after being opened; [0003] Most of the existing door closers are complex in structure, which is a burden on the installation work of the staff. At the same time, the closed structure of the existing door closers makes it impossible to repair later, and if all the door closers with the same spring pressure are used, there will be The problem that the door closing speed cannot be adjusted. Contents of the invention [0004] The technical problem mainly solved by the present invention ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E05F3/10E05F3/18
CPCE05F3/10E05F3/18E05Y2900/132
Inventor 王仁胤
Owner SUZHOU JINCHUANG INTERNET TECH CO LTD