Slideway type anti-shock wave ventilation valve
An anti-shock, ventilation valve technology, applied in the direction of lift valve, safety valve, balance valve, etc., can solve the problems of inconvenient maintenance, heavy workload, valve core can not be closed, etc., to achieve convenient disassembly and maintenance, fast response, close reliable results
Pending Publication Date: 2018-07-20
ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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Problems solved by technology
[0003] Chinese invention patent "double-sided anti-shock wave ventilation valve" patent number: 201210480899.2, there is a through hole on the valve core, the shaft passes through the through hole to connect with the valve body, and the pressure spring is set on both sides of the valve core on the shaft, and the explosion wave When acting on the spool, the spool is likely to rotate at a small angle, causing jamming, and even the phenomenon that the spool cannot be closed
[0004] Chinese invention patent "ventilation valve vane compression structure" patent number: 201320324895.5, can only resist one-way high pressure, not two-way
[0005] Chinese invention patent "anti-explosion valve" patent number: 201420452617.2, all the torsion springs are set inside the valve body, when there is an explosion wave, the torsion spring will also be impacted by the explosion wave, and it is easy to fail. The failure mode is that it cannot be reset. At this time, it may be blown off during normal ventilation, and if the strut on which the torsion spring is installed is broken, the broken strut and torsion spring are likely to affect the normal use of the valve core
[0006] Chinese invention patent "An imitation tortoise shell valve body and anti-knock valve" patent number: 201510733938.9, the frame structure is relatively complicated, the valve core needs a lot of work to make, and it is inconvenient to maintain
[0007] Chinese invention patent "Anti-Shock Wave Valve" patent number: 201510751884.9, requires high precision of the length of the balance bar. If the length is not consistent, one end of the closed valve leaf fits the valve body, but the other end does not fit, which cannot effectively resist the shock wave.
[0008] Chinese invention patent "a two-way anti-knock valve" patent number: 201520248583.X, the valve plate chooses a spring plate, and a port corresponding to the valve body is opened on the valve plate, so that the strength of the spring plate is greatly reduced, and To resist the shock wave, the spring plate needs to have sufficient strength, so it is necessary to thicken the spring plate, and the spring plate after thickening will have insufficient elasticity. In reality, this pair of contradictions cannot be solved well.
[0009] Chinese invention patent "Modular double-sided impact-resistant airtight air-trap valve" patent number: 201611100404.3 There are two valve blades, so the workload during assembly is relatively large, and this invention is only suitable for the production of small specifications in actual production valves, because when producing large-scale valves, the strength and flatness of the valve blades are difficult to meet the requirements
[0010] Chinese Patent "Frame Integrated Anti-Impact Sealed Tornado Valve" Patent No.: 201611100403.9 The valve frame is an integral type, and the ventilation channel is separated by setting ribs and bottom plates inside the valve frame. This method is not suitable for mass production. , because it is necessary to determine the number of ventilation channels in the design, and then consider how to distribute the ribs inside the valve frame and the bottom plate, and the work efficiency is not high
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] like Figure 4 As shown, the present invention discloses a slide type anti-shock wave ventilation valve, comprising a frame 1, one or more valve cores 2, a first bead 3, a second bead 4 and a side cover 5; the first bead 3, The second bead 4 is provided with a bolt hole; the first bead 3 and the second bead 4 press the valve core 2 and the side cover 5 on the frame 1 through bolts; The structure of the valve is basically the same.
[0035] like Figu...
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The invention discloses a slideway type anti-shock wave ventilation valve. The ventilation valve comprises a frame, one or more valve elements, first pressing strips, second pressing strips and side covers, wherein the first pressing strips and the second pressing strips are used for pressing tightly the valve elements and the side covers on the frame through bolts; the valve elements comprise valve frames, valve blades, supporting plates and spring reset mechanisms, wherein the valve frames comprise upper-and-down frames and front-and-rear frames which are fixedly connected, and air inlets are formed in the flat plate parts which are concave in the front-and-rear frames; the supporting plates are arranged on the side edges of the front-and-rear frames, and sliding grooves are formed in the supporting plates; and flow channels which are staggered with the air inlets are formed in the valve blades, the spring resetting mechanisms are connected with the valve blades, and when the springresetting mechanisms are in a normally open state, the valve blades are located in the middles of the valve frames. The slideway type anti-shock wave ventilation valve has the benefical effects that manual operation is not needed, the design is ingenious, the structure is simple, disassembly and maintenance are convenient, performance is more reliable, closing time is not more than 2 ms, large shock wave load can be borne, the wave transmitting rate is low, and the leakage quantity is low.
Description
technical field [0001] The invention relates to a ventilation valve, in particular to a ventilation valve using a slideway structure to realize anti-shock wave, and belongs to the technical field of building heating and ventilation equipment. Background technique [0002] When designing building safety, it is necessary to consider the design of the corresponding HVAC facilities. In order to avoid the positive pressure generated by the explosion shock wave, the negative pressure generated by the typhoon or tornado, etc., from causing damage to the ventilation equipment in the building and causing damage to the personnel, it is necessary to install some devices at the end of the HVAC equipment that can instantly absorb the positive pressure and negative pressure. Closed anti-shock wave valve. Once the above-mentioned positive pressure or negative pressure occurs, the anti-shock wave valve can be closed instantly to cut off the connection between the inside and outside of the ...
Claims
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IPC IPC(8): F16K17/36F16K1/36F24F13/02
CPCF16K1/36F16K17/36F24F13/02
Inventor严梅英陈利鹏黄炳臣谢波
OwnerZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD