Connecting rod butterfly valve with connecting rod adjustment mechanism
A technology of adjusting mechanism and connecting rod mechanism, which is applied in the direction of valve lift, valve details, valve device, etc., and can solve the problems of parts deformation and sealing, laxness, production and installation errors, etc.
Active Publication Date: 2021-05-04
CHANGZHOU UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, the present invention provides a connecting rod butterfly valve with a connecting rod adjustment mechanism to solve the problems caused by factors such as correction of production installation errors and parts deformation during use. Poor sealing problem
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[0023] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0024] like figure 1 , figure 2 A connecting rod butterfly valve with a connecting rod adjustment mechanism shown includes a valve body 1, a connecting rod mechanism, an adjustment structure sealing mechanism and a limit mechanism.
[0025] The connecting rod mechanism: it has a valve plate seat frame 2 installed in the valve body 1, a valve stem 14 arranged on the front side of the valve plate seat frame 2, a main regulating rod 5 and a secondary regulating rod 6, and the valve plate seat frame 2 A crank 15 and a connecting rod 3 are hinged, one end of the main regulating rod 5 is connected to the valve stem 14, one end of the auxiliary regulating rod 4 is...
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The invention relates to a connecting rod butterfly valve with a connecting rod adjustment mechanism, which includes a valve body, a connecting rod structure, an adjusting structure, a sealing structure and a limit structure. The connecting rod structure includes a crank, a valve plate seat frame, a connecting rod, and a main adjusting rod , the auxiliary adjusting rod and the valve stem, the crank and the connecting rod are connected to the seat frame of the valve plate, one end of the main adjusting rod is connected to the valve stem, and one end of the auxiliary adjusting rod is connected to the connecting rod. Rod, auxiliary control rod and adjusting nut, the inner ends of the main control rod and auxiliary control rod are respectively hinged with the main adjusting rod and the auxiliary adjusting rod, the middle section is processed with threads matching the adjusting nut, and the outer end is processed with axial scales; The sealing structure is composed of packing seat, packing and gland; the limit structure fixes the adjusting nut through the end cover and the fixed piece. The present invention has a good adjustment function for the errors generated in the production and assembly process and the deformation generated in the use process, and can effectively reduce the maintenance cost.
Description
technical field [0001] The invention relates to the technical field of valve control, in particular to a connecting rod butterfly valve with a connecting rod adjustment mechanism. Background technique [0002] The connecting rod butterfly valve is a regulating valve with simple structure, which is mainly used in petrochemical and metallurgical industries. The working temperature can reach 500°C, and the sealing level is required to be above level IV. At present, the sealing adjustment of the connecting rod butterfly valve is carried out at the factory, and it is difficult to adjust according to actual needs after being applied to the corresponding pipeline occasion. [0003] The connecting rod butterfly valve in the prior art includes a valve body, a valve plate, a valve stem, a driving rod, a driven rod, and a fixed rod. The valve body is fixed and sealed with cap nuts and gaskets, and the installation position can be adjusted through the adjusting rod. [0004] However, ...
Claims
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IPC IPC(8): F16K1/22F16K1/226F16K31/52F16K37/00F16K41/02
CPCF16K1/22F16K1/2268F16K31/521F16K37/0016
Inventor 坎标陈丽娟
Owner CHANGZHOU UNIV