Torsion adjusting mechanism and fireproof check valve

A technology of torque adjustment and adjustment plate, which is applied in safety valves, balance valves, valve devices, etc., can solve problems such as difficulty in exhausting smoke, easy opening of valve plates, backflow of outdoor smoke into the room, etc., and achieve cost-saving effects

Pending Publication Date: 2020-12-15
HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Yet the active force that existing torsion spring acts on the connecting rod is constant, and this just makes: the valve plate of high-rise dwelling house is difficult to open exhaust port thereby causes indoor smoke to be difficult to discharge, and the valve plate of low-rise house is easy to be Open to cause outdoor smoke to flow back into the room

Method used

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  • Torsion adjusting mechanism and fireproof check valve
  • Torsion adjusting mechanism and fireproof check valve
  • Torsion adjusting mechanism and fireproof check valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 2 , the torque adjustment mechanism 100 includes a first connecting plate 1 for connecting the valve body and an adjusting plate 4 arranged inside the first connecting plate 1, the bottom end surface of the adjusting plate 4 is located at the bottom of the first connecting plate 4 in the vertical direction Above the end face, the first connecting plate 1 is provided with a first connecting portion 11, and the adjusting plate 4 is provided with at least two torque adjustment grooves 41 for clamping the upper torsion arms of the first torsion spring, and at least two torque adjustment grooves 41 vertical settings.

[0030] like image 3 As shown, the minimum spacing distance between two adjacent torque adjustment slots 41 is H1, H1≥2mm, and the maximum spacing distance H2 between two adjacent torque adjustment slots 42, H2≤20mm.

[0031] see figure 1 , The torque adjustment mechanism 100 also includes a stop plate 2 for connecting the temperature sensing me...

Embodiment 2

[0038] see Figure 4 and Figure 5 , the fire check valve includes a valve body 200, a valve plate 300, a linkage mechanism 400, a paddle 800, a temperature sensing mechanism 900, a first torsion spring 500, a second torsion spring 700 and a torque adjustment mechanism, and the valve body 200 has an exhaust port 201, a valve seat 2001 is set on the inner wall of the valve body 200, the valve plate 300 is movably set on the upper end of the linkage mechanism 400, the lower end of the linkage mechanism 400 is movably set on the valve seat 2001, and the paddle 800 is movably set On the valve seat 2001, the torque regulating mechanism is the torque regulating mechanism 100 of the first embodiment, the torque regulating mechanism 100 is fixedly connected with the valve seat 2001, the temperature sensing mechanism 900 is arranged on the torque regulating mechanism 100, and the first torsion spring 500 is arranged on the connecting On the rod mechanism 400, one torsion arm of the fi...

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PUM

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Abstract

The invention relates to a torsion adjusting mechanism and a fireproof check valve so as to adjust the opening difficulty of valve plates on valves on different floors. The torsion adjusting mechanismcomprises a first connecting plate which is used for being connected with a valve body and an adjusting plate which is arranged on the inner side of the first connecting plate, a first connecting part is arranged on the first connecting plate, at least two torsion adjusting grooves used for being connected with torsion arms on a first torsion spring in a clamped mode are arranged on the adjustingplate, and the at least two torsion adjusting grooves are vertically formed.

Description

technical field [0001] The invention relates to a torque regulating mechanism and a fireproof check valve. Background technique [0002] The existing valve includes a valve body, a valve plate, a connecting rod and a torsion spring. The valve body has an exhaust port. On the rod, the other torsion arm of the torsion spring is arranged on the valve body, and the torsion spring is used to drive the connecting rod to drive the valve plate to close the exhaust port. [0003] An exhaust duct is arranged in the residential building, and each floor has an installation hole for communicating with the exhaust duct, and a valve is arranged on the installation hole. The gas pressure value of the existing exhaust channel is different at different heights. Generally speaking, the thrust required by the valve located above the exhaust channel to open the valve plate is less than the thrust required by the valve located below the exhaust channel to open the valve plate. required thrust. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/38
CPCF16K17/38
Inventor 王启定曹正祥
Owner HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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