CN-224217377-U - Limit switch installing support of valve control

CN224217377UCN 224217377 UCN224217377 UCN 224217377UCN-224217377-U

Abstract

The utility model relates to the technical field of valves, in particular to a limit switch mounting bracket for valve monitoring, which comprises an electric valve and a limit switch, wherein a sheet-shaped bracket structure is fixedly connected between the upper end of the electric valve and the lower end of the limit switch through bolts, the sheet-shaped bracket structure comprises a supporting plate, the inner side of the supporting plate is slidably connected with a compression column assembly, the lower end of the supporting plate is fixedly connected with a connecting layer assembly, the lower end of the connecting layer assembly is fixedly adhered with an anti-slip layer assembly, the compression column assembly comprises a magnetic column, the outer side of the magnetic column is provided with a diversion trench, one end of the magnetic column is fixedly connected with a sponge layer, the inner side of the diversion trench is provided with a honeycomb hole, and one side of the sponge layer, which is far away from the magnetic column, is fixedly connected with a rubber layer.

Inventors

ZHOU JUN
MA CHUNAN
WANG ZHENGWEI
SHI SHENGCHAO
Qi Fuzhi
ZHAO WENQIANG
MA RUNSHENG
LU MENGYU
JU SHENGYUN

Assignees

国网青海省电力公司电力科学研究院
国网青海省电力公司

Dates

Publication Date: 20260508
Application Date: 20250528

Claims (7)

1. The limit switch mounting bracket for valve monitoring comprises an electric valve (1) and a limit switch (3), and is characterized in that a sheet-shaped bracket structure (2) is fixedly connected between the upper end of the electric valve (1) and the lower end of the limit switch (3) through bolts; The sheet-shaped support structure (2) comprises a support plate (21), wherein a compression column assembly (22) is connected to the inner side of the support plate (21) in a sliding manner, a connecting layer assembly (23) is fixedly connected to the lower end of the support plate (21), and an anti-slip layer assembly (24) is fixedly bonded to the lower end of the connecting layer assembly (23); The pressure column assembly (22) comprises a magnetic column (221), a diversion trench (222) is formed in the outer side of the magnetic column (221), one end of the magnetic column (221) is fixedly connected with a sponge layer (223), a honeycomb hole (224) is formed in the inner side of the diversion trench (222), and a rubber layer (225) is fixedly connected to one side, far away from the magnetic column (221), of the sponge layer (223); The connecting layer assembly (23) comprises a steel plate (231), a sliding groove (232) is formed in the inner side of the steel plate (231), a magnetic plate (233) is connected to the inner side of the sliding groove (232) in a sliding mode, a connecting column (234) is fixedly connected to one side of the magnetic plate (233), and a plug bead (235) is fixedly connected to one end of the connecting column (234); The anti-slip layer assembly (24) comprises a rubber plate (241), a through hole (242) is formed in the inner side of the rubber plate (241), an anti-slip rubber (243) is fixedly bonded to the inner side of the through hole (242), a bowl-shaped hole (244) is formed in the inner side of the rubber plate (241), and air holes (245) are formed in the inner side of the rubber plate (241).
2. The limit switch mounting bracket for valve monitoring according to claim 1, wherein a part of the pressure column assembly (22) is exposed out of the supporting plate (21), the pressure column assembly (22) is provided with a plurality of pressure column assemblies (22) which are uniformly and equidistantly distributed in an S-shaped array, and the projection of the supporting plate (21) and the projection of the connecting layer assembly (23) in the vertical direction are identical.
3. The limit switch installing support of valve control of claim 1, wherein a plurality of guiding grooves (222) are formed, a plurality of guiding grooves (222) are uniformly and equidistantly distributed on the outer side of a magnetic column (221) in an annular array, honeycomb holes (224) are in a hexagonal prism shape, a plurality of honeycomb holes (224) are formed, a plurality of honeycomb holes (224) are uniformly and equidistantly distributed on the inner side of a sponge layer (223), and the upper end of a rubber layer (225) is attached to the bottom end of a limit switch (3).
4. The limit switch mounting bracket for valve monitoring according to claim 1, wherein the sliding groove (232) is formed by a section of cylinder and a section of round table, the sliding groove (232) is formed to be four fifths of the thickness of the steel plate (231), and the outer side of the magnetic plate (233) is tightly attached to the inner side of the sliding groove (232).
5. The limit switch mounting bracket for valve monitoring according to claim 1, wherein magnetic repulsion exists between the magnetic plate (233) and the magnetic column (221), the magnetic plate (233), the connecting column (234) and the plug beads (235) are located on the same axis, the length of the connecting column (234) is the same as the opening depth of the sliding groove (232), and the plug beads (235) are exposed out of the steel plate (231).
6. The limit switch mounting bracket for valve monitoring as set forth in claim 1, wherein two through holes (242) are provided, the two through holes (242) are symmetrically distributed, a part of the anti-slip rubber (243) is exposed out of the through holes (242), and a plurality of notches are formed in the inner side of the anti-slip rubber (243).
7. The limit switch mounting bracket for valve monitoring according to claim 1, wherein the bottom end of the rubber plate (241) is attached to the upper end of the electric valve (1), the inner side of the bowl-shaped hole (244) is in arc-shaped arrangement, the bowl-shaped hole (244) and the air hole (245) are communicated with each other, and the positions of the bowl-shaped hole (244) and the positions of the pressing column assembly (22) are in one-to-one correspondence.

Description

Limit switch installing support of valve control Technical Field The utility model relates to the technical field of valves, in particular to a limit switch mounting bracket for valve monitoring. Background The limit switch for valve monitoring is a key industrial device for detecting the opening and closing states of the valve, and is mainly used for monitoring the stroke end position of the valve, converting mechanical motion into an electric signal and feeding the electric signal back to a control system, and has the core functions of ensuring the accuracy and the safety of valve action and preventing equipment damage, medium leakage or system failure caused by excessive opening or closing of the valve; The limit switch for valve monitoring is various, is usually provided with an intuitive indicator lamp and an adjustable limit adjusting device, is convenient for on-site debugging and maintenance, can be easily adapted to different types of valve actuating mechanisms, and can be rapidly integrated into the existing system; However, the limit switch is usually directly fixed on the valve body shell by adopting a bolt, in the process of installation and debugging, friction loss of a contact surface can be aggravated by repeatedly adjusting the position of the limit switch, mechanical stress generated by rigid contact is concentrated on the valve shell, so that not only can the corrosion risk caused by the anti-corrosion coating of the valve body be destroyed, but also the flatness of an installation base surface can be reduced, and the triggering precision of a stroke end signal of the limit switch is affected. Disclosure of utility model The utility model aims to provide a limit switch mounting bracket for valve monitoring, which aims to solve the problems that a limit switch is directly fixed on a valve body shell by adopting a bolt, friction loss of a contact surface is increased by repeatedly adjusting the position of the limit switch in the process of mounting and debugging, mechanical stress generated by rigid contact is concentrated on a valve shell, corrosion risk is caused by damaging a valve body anti-corrosion coating, flatness of a mounting base surface is reduced, and trigger precision of a limit switch stroke end signal is affected. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a limit switch installing support of valve control, includes electric valve and limit switch, through bolt fixedly connected with sheet support structure between electric valve upper end and the limit switch lower extreme, sheet support structure includes the backup pad, the inboard sliding connection of backup pad has the spliced pole subassembly, backup pad lower extreme fixedly connected with splice layer subassembly, splice layer subassembly lower extreme bonds and be fixed with anti-skidding layer subassembly, the spliced pole subassembly includes the magnetic column, the guiding gutter has been seted up in the magnetic column outside, magnetic column one end fixedly connected with sponge layer, the honeycomb hole has been seted up to the guiding gutter inboard, one side fixedly connected with rubber layer of magnetic column is kept away from to the sponge layer, splice layer subassembly includes the steel sheet, the sliding tray has been seted up to the steel sheet inboard, sliding tray inboard sliding connection has the magnetic plate, magnetic plate one side fixedly connected with spliced pole, spliced pole one end fixedly connected with plug bead, the splice layer subassembly includes the offset plate, the through-hole inboard bonds and is fixed with anti-skidding rubber, the inboard bowl form hole that has been seted up to the offset plate inboard, the offset plate inboard has been seted up the air vent. As the content of further optimization of the invention, one part of the pressure column component is exposed outside the supporting plate, a plurality of pressure column components are arranged, the pressure column components are uniformly and equidistantly distributed in an S-shaped array, and the projection of the supporting plate and the connecting layer component on the vertical direction is completely the same. The invention further optimizes the device, wherein the diversion trenches are provided with a plurality of diversion trenches which are uniformly and equidistantly distributed outside the magnetic column in an annular array, the honeycomb holes are in a hexagonal prism shape, the honeycomb holes are provided with a plurality of diversion trenches which are uniformly and equidistantly distributed inside the sponge layer in an annular array, and the upper end of the rubber layer is attached to the bottom end of the limit switch. The sliding groove is formed by a section of cylinder and a section of round table, the depth of the sliding groove is four fifths of the thickness of the steel plate, and the outer s