Unlock instant, AI-driven research and patent intelligence for your innovation.

Hinge type door closer using shear thickening fluid

A door closer and hinge technology, applied in the field of new hinge-type door closers, can solve the problems of large size and high cost of door closers, achieve the effects of low processing accuracy requirements, lower production costs, and small size

Inactive Publication Date: 2012-07-25
UNIV OF SCI & TECH OF CHINA
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of relatively large volume and high cost of the door closers on the doors of high-grade buildings, the present invention provides a hinge-type door closer using shear thickening fluid with small volume and low manufacturing cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hinge type door closer using shear thickening fluid
  • Hinge type door closer using shear thickening fluid
  • Hinge type door closer using shear thickening fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 , the hinge-type door closer using shear thickening fluid includes a cylindrical upper shell 2 and a lower shell 9, one end of the upper shell 2 and the lower shell 9 is rotatably connected, and a seal is installed at the rotating connection end , to prevent the internal shear thickening fluid leakage. The upper end of the upper housing 2 is equipped with an end cover 1, the inner side of the end cover 1 is connected with a rotating guide rod 5, the lower end of the rotating guide rod 5 is located at the bottom of the lower housing 9, and the lower end of the lower housing 9 is a closed end; The upper part of 5 is fitted with a spring 4, the spring 4 is a torsion spring, its upper end is fixedly connected to the end cover 1, and its lower end is embedded in the upper part of the inner side of the lower casing 9; four paddle discs 7 are evenly distributed on the lower part of the rotating guide rod 5;

[0023] The upper shell 2 is connected to the upper hin...

Embodiment 2

[0026] The difference with Example 1 is:

[0027] The spring 4 is sleeved outside the upper casing 2 and the lower casing 9, see figure 2 , one end is connected with the upper hinge 3, and the other end is connected with the lower hinge 8. When the dodge door body is opened, the torsion of the spring 4 drives the upper casing 2 to rotate through the upper hinge 3, and the upper casing 2 drives the four paddle discs 7 on the rotating guide rod 5 to rotate, applying force to the shear thickening fluid 6. Larger shear force, the viscosity of the shear thickening fluid 6 increases, constitutes resistance to the release of the spring 4, achieves the effect of buffering, controls the closing speed of the movable door body, and realizes the slow and moderate light movement of the movable door body. Gently close.

[0028] Others are with embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a novel hinge type door closer using a shear thickening fluid, and solves the problems that the door closer on a high-grade building door body has relatively large volume and high manufacturing cost. The door closer comprises an upper shell and a lower shell which are cylindrical, and one end of the upper shell and one end of the lower shell are rotationally connected; the upper end of the upper shell is provided with an end cover, and the inside of the end cover is connected with a rotary guide rod; the upper part of the rotary guide rod is sleeved with a spring, andthe lower part of the rotary guide rod is provided with more than one disk; exterior of the upper shell is connected with an upper hinge, and the exterior of the lower shell is connected with a lowerhinge; and the shear thickening fluid is filled in the upper shell and the lower shell. The hinge type door closer has the advantages of small volume and concealment performance, does not influence the integral appearance, has relatively simple internal structure and low machining precision requirement so as to lower production cost, and can be suitable for various door bodies on different weightranges by simply replacing a torsion spring and the shear thickening fluid with different components.

Description

technical field [0001] The present invention relates to a novel hinged door closer using a shear thickening fluid. Background technique [0002] In terms of building doors, cabinet doors, etc., door closers play a very important role. [0003] Shear thickening fluid is a kind of suspension, which is composed of dispersed phase and dispersion medium. When subjected to low strain rate, the apparent viscosity is relatively small. When subjected to high strain rate load, the apparent viscosity of the contact interface changes greatly. Even from liquid phase to solid phase; after the load is removed, it can change from solid phase to liquid phase again, and this change is reversible. The shear thickening fluid hinge type door closer uses the thickening rheological characteristics of the shear thickening fluid to achieve the effect of limiting the door speed. Due to the reversibility of the shear thickening, it can be used repeatedly and has a long service life. [0004] The doo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E05F3/20E05F3/14E05F1/12
Inventor 龚兴龙徐钰蕾李潇峰
Owner UNIV OF SCI & TECH OF CHINA