Novel butterfly valve
A butterfly valve, a new type of technology, applied in the direction of lifting valves, valve devices, engine components, etc., can solve the problems of low temperature resistance, insufficient pressure bearing capacity, and insufficient sealing reliability, so as to be not easy to damage and tear, and have high pressure bearing capacity , Sealing and reliable effect
Inactive Publication Date: 2013-03-27
王洪娟
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AI Technical Summary
Problems solved by technology
[0003] During the operation of the existing butterfly valve, the bearings are easy to wear, so it is necessary to add lubricant regularly, which is troublesome. It adopts soft rubber seal, which is not resistant to high temperature, the pressure bearing capacity is not high enough, it is easy to be damaged, and the seal is not reliable enough.
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[0014] figure 1 As a preferred embodiment of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.
[0015] according to figure 1 , a new type of butterfly valve, comprising a valve stem 2, a runner 1 connected to the valve stem 2, and a valve body, characterized in that: it also includes a butterfly plate 3 positioned in the diameter direction of the valve body, a butterfly valve shaft 4 for fixing the butterfly plate 3, The bearing 5 supporting the butterfly valve shaft 4; the end of the bearing 5 in contact with the butterfly valve shaft 4 is provided with a lubricating layer 7 . A metal sealing portion 6 is provided at the joint between the valve stem 2 and the valve body. The butterfly valve shaft 4 and the butterfly plate 3 are connected by keys or splines.
[0016] Beneficial effects of the present invention: the bearing 5 adopts the self-lubricating layer 7, and it is not necessary to continuously...
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The invention relates to the field of a valve, and in particular relates to a novel butterfly valve which is less in possibility of bearing damage and reliable in seal. The novel butterfly valve comprises a valve rod, a rotating wheel connected with the valve rod, and a valve body, and is characterized by further comprising a butterfly plate arranged along the diameter direction of the valve body, a butterfly valve shaft used for fixing the butterfly plate, and the bearing used for supporting the butterfly valve shaft, wherein a lubricating layer is arranged at the end, contacted with the butterfly valve shaft, of the bearing; a metal sealing part is arranged at the connecting part between the valve rod and the valve body; and the butterfly valve shaft is connected with the butterfly plate by a key or spline. The novel butterfly valve has the beneficial effects the self-lubricating layer is adopted by the bearing, so that lubricating agent is not needed to be continuously added into the butterfly valve in the using process, and the novel butterfly valve is more convenient; and the novel butterfly valve is sealed rigidly by metal, thus being reliable in sealing, long in service life, high-temperature resistant, hard to damage and tear, and high in pressure-bearing capacity.
Description
technical field [0001] The invention relates to the field of valves, in particular to a novel butterfly valve with undamaged bearings and reliable sealing. [0002] Background technique [0003] During the operation of the existing butterfly valve, the bearing is easy to wear, so it needs to add lubricant regularly, which is troublesome. It adopts rubber soft seal, which is not resistant to high temperature, the pressure bearing capacity is not high enough, it is easy to be damaged, and the seal is not reliable enough. [0004] Contents of the invention [0005] The object of the present invention is to overcome the above problems and provide a new type of butterfly valve with undamaged bearing and reliable sealing. [0006] In order to achieve the above object, the technical solution adopted by the present invention is: a new type of butterfly valve, including a valve stem, a runner connected with the valve stem, and a valve body, which is characterized in that: it also...
Claims
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IPC IPC(8): F16K1/22F16K1/32
Inventor 王洪娟
Owner 王洪娟