Sector-structure shock-wave-resistant vent valve
A shock-resistant, fan-shaped structure technology, applied in space heating and ventilation details, household heating, lighting and heating equipment, etc., can solve the problems of heavy workload, inconvenient maintenance, low work efficiency, etc., and achieve uniform response speed block, easy disassembly and maintenance, and simple structure
Pending Publication Date: 2018-07-31
ZHEJIANG SHANGFENG HI TECH SPECIALIZED WIND IND
View PDF24 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Chinese invention patent "double-sided anti-shock wave ventilation valve" application 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" application number: 201320324895.5, can only resist one-way high pressure, not two-way
[0005] Chinese invention patent "anti-explosion valve" application number: 201420452617.2, all 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 tortoiseshell valve body and anti-knock valve" application 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" application number: 201510751884.9, has high requirements on the length accuracy of the balance bar. If the lengths are inconsistent, 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" application number: 201520248583.X, the valve plate selects 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 tornado valve" application 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-sized valves in actual production , because when producing large-scale valves, the strength and flatness of the valve blades are difficult to meet the requirements
[0010] Chinese invention patent "frame integrated anti-impact airtight tornado valve" application number: 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 large quantities. Production, because it is necessary to determine the number of ventilation channels during design, and then consider how to distribute the ribs inside the valve frame and the bottom plate, and the work efficiency is not high
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] 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 of the embodiments of the present invention, not all of them. 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.
[0032] Such as Figure 4 As shown, the present invention discloses a fan-shaped structure anti-shock wave ventilation valve, including 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 Bolt holes are provided on the second bead 4; 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; in summary, it is different from...
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
Login to View More Abstract
The invention discloses a sector-structure shock-wave-resistant vent valve. The vent valve comprises a frame, one or more valve elements, a first pressing bar, a second pressing bar and a side cover.The first pressing bar and the second pressing bar press the valve elements and the side cover on the frame through bolts. Each valve element comprises a valve frame, a valve vane, a valve shaft and aspring reset mechanism. Each valve frame is composed by compositing a front frame, a rear frame, a side frame, an upper frame and a lower frame. Each upper frame and each lower frame are outwards folded. Each valve shaft is mounted on the corresponding side frame and can rotate around the axis of the valve shaft. First vent holes are formed in the valve vanes. The inner surface of each front frame and the inner surface of each rear frame can be attached to the surface of the corresponding valve vane located at the extreme position. Second vent holes are formed in the front frames and the rearframes, and the second vent holes and the first vent holes are formed in a staggered mode. The spring reset mechanisms are connected with the valve vanes. The vent valve has the beneficial effects ofbeing capable of achieving two-way protection and automatic resetting, simple in structure, convenient to dismount and maintain, reliable in performance, capable of bearing high shock wave loads andlow in wave transmittance and leakage rate.
Description
technical field [0001] The invention relates to an anti-shock wave ventilation valve, in particular to a ventilation valve which utilizes a fan-shaped valve core to realize resistance to shock waves, and belongs to the field of ventilation machinery. 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...
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
Login to View More IPC IPC(8): F24F13/10
CPCF24F13/105
Inventor谢波陈利鹏黄炳臣严梅英
OwnerZHEJIANG SHANGFENG HI TECH SPECIALIZED WIND IND