Door closer hydraulic mechanism for fine regulating door-closing power

A technology of hydraulic mechanisms and door closers, which is applied to switches with braking devices, door/window accessories, building structures, etc. It can solve the problems that the same door closer cannot meet the needs of use, and achieves increased door closing force, The effect of reducing the amount of compression and increasing the amount of compression

Inactive Publication Date: 2011-09-14
ZHAOQING CITY ZHISHENG DOOR CONTROL HARDWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a new type of hydraulic mechanism for door closers, and solve the problem that the same door closer cannot be used on different door widths and different door weights

Method used

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  • Door closer hydraulic mechanism for fine regulating door-closing power
  • Door closer hydraulic mechanism for fine regulating door-closing power

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Embodiment Construction

[0009] In order to facilitate the understanding of those skilled in the art, the hydraulic mechanism of the door closer of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0010] as attached figure 1 As shown, a hydraulic mechanism of a door closer includes a cylindrical valve body 1, a front end cover 2 and a rear end cover 3 are respectively provided at both ends of the valve body, and a rack piston 4 is arranged in the valve cavity of the valve body, and the tooth The inner wall of the bar piston is provided with a rack 5; in the through hole passing through the valve body wall and the rack piston wall, a gear shaft 6 is arranged, and a transmission gear 7 is arranged on the gear shaft 6, and the transmission gear 7 meshes with the rack 5; The left end of the rack piston 4 is provided with a one-way valve steel ball 8, the right end of the rack piston is connected with the compression spring 9 lo...

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Abstract

The invention discloses a hydraulic mechanism of a door closer. The hydraulic mechanism comprises a cylindrical valve body. Two ends of the valve body are provided with a front end cover and a rear end cover respectively; a rack piston is arranged in a valve chamber of the valve body; the inner wall of the rack piston is provided with a rack; a gear shaft is arranged in a through hole passing through walls of the valve body and the rack piston; the gear shaft is provided with a transmission gear, and the transmission gear is meshed with the rack; the left end of the rack piston is provided with a check valve steel ball; the right end of the rack piston is connected with a compression spring arranged in the right chamber of the valve body; and a power regulator for fine door-closing power is arranged between the rear end cover at the right end of the valve body and the compression spring. The hydraulic mechanism has a function of finely regulating completely satisfactory door-closing power of a user with no limit, so the same door closer can be applicable to different door widths and door weights.

Description

technical field [0001] The invention relates to a door closer, in particular to a door closer hydraulic mechanism for fine-tuning the closing force. Background technique [0002] The hydraulic transmission door closer is mainly composed of hydraulic oil, body, rack piston and a hydraulic buffer device. The power comes from the compression spring built in the body. The spring force is transmitted to the piston through the rack, and then transmitted to the hydraulic oil by the piston. The hydraulic oil passes through the oil circuit opened on the body. The left chamber of the body flows to the right chamber of the body through the regulating valve. Adjusting the regulating valve can adjust the flow rate and flow rate of the hydraulic oil, thereby indirectly adjusting the movement speed of the piston and the rack; the door closing speed is determined by the rotation speed of the transmission gear, and the rotation speed of the transmission gear is determined by the movement spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F3/10E05F3/22
Inventor 陈长才
Owner ZHAOQING CITY ZHISHENG DOOR CONTROL HARDWARE CO LTD
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