Sliding type temperature sensing device
A sliding, temperature-sensing technology, applied in valve devices, engine components, functional valve types, etc., can solve problems such as hindering the opening and closing of valve plates, easy failure of springs, affecting ventilation, etc., and achieves good sealing and locking speed. Fast, small footprint effect
Pending Publication Date: 2020-09-01
南京协威机械有限公司
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Problems solved by technology
Many temperature sensing devices of check valves use spring thrust to lock the valve plate, but at high temperature, the spring is prone to failure, which will cause the valve plate to open, causing the fire to spread further
At the same time, most of the single spring connecting rod type temperature sensing devices are not strong enough, and the temperature sensing devices will hinder the opening and closing of the valve plate in the daily closed state, affecting the ventilation volume
Method used
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[0019] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0020] The valve body 1 and the double-door valve plate 2 installed inside the valve body 1, the double-door valve plate is symmetrical with respect to the vertical beam 9 arranged on the valve body, the present invention is set in the valve body, including the positioning shaft 3, the locking block, and the spring 6 , the vertical shaft 4 used to connect the locking block, the fuse, and the slider 7 and block 8 arranged on the positioning shaft, such as figure 1 , 2 shown.
[0021] Both ends of the positioning shaft 3 are connected to the valve body 1, parallel to the vertical beam 9 and located in the same vertical plane. The positioning shaft 3 is provided with a chute 10, and the chute 10 is provided with a slide block 7 sliding along the shaft, and the slide block 7 is strip-shaped. The positioning shaft 3 is also provided with a sprin...
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The invention discloses a sliding type temperature sensing device. The sliding type temperature sensing device comprises a positioning shaft, a locking resistance member, a spring, a vertical shaft for connecting the locking resistance member, a fuse link, and a sliding block and a resistance block arranged on the positioning shaft. Two ends of the positioning shaft are connected with a valve bodyand are parallel to a vertical beam. The positioning shaft is provided with a sliding groove. The locking resistance member comprises two resistance pieces arranged symmetrically with respect to thepositioning shaft. The sliding block moves in the sliding groove. The resistance block is symmetrically fixed on both sides of the positioning shaft. The lower end of the resistance block is against the edge of the resistance pieces. The upper end of the vertical shaft is connected to the sliding block. One end of the spring is connected to the sliding block, and the other end is connected to thepositioning shaft or the valve body. The fuse link is connected with the resistance pieces so that the spring is in a stretched state and the resistance pieces are in a closed state. The vertical locking method of a resistance member and a valve piece makes the valve piece bear heavy force and is not easy to be opened by the large air volume suction. At the same time, the temperature sensing device has fast locking speed, high transmission stability, good sealing performance, high structural strength, and high security.
Description
technical field [0001] The invention relates to a sliding type temperature sensing device. Background technique [0002] In the ventilation ducts of public places or in the smoke exhaust ducts of range hoods, check valves are usually arranged to prevent the spread of high-temperature smoke in the event of a fire. The double-valve connecting rod type temperature sensing device has the advantages of small space occupied by the valve and large air output during ventilation, and is often used in ventilation ducts or range hoods in public places. In the double valve plate single spring connecting rod type temperature sensing device, the most critical structure is the temperature sensing device, that is, the device that locks the valve plate of the check valve according to the temperature of the air flow in the pipeline. Many temperature sensing devices of check valves use spring thrust to lock the valve plate, but at high temperatures, the spring is prone to failure, which will ...
Claims
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IPC IPC(8): F16K17/40F16K17/38F16K15/03
CPCF16K15/03F16K17/38F16K17/40
Inventor 杨开良
Owner 南京协威机械有限公司