Limit switch mounting bracket for valve monitoring

Abstract

The utility model relates to the technical field of valves, in particular to a limit switch mounting support for valve monitoring, which comprises an electrically operated valve and a limit switch, a sheet support structure is fixedly connected between the upper end of the electrically operated valve and the lower end of the limit switch through bolts and comprises a support plate, and a compression column component is slidably connected to the inner side of the support plate. 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 bonded with an anti-skid layer assembly, the pressing column assembly comprises a magnetic column, a flow guide groove is formed in the outer side of the magnetic column, one end of the magnetic column is fixedly connected with a sponge layer, honeycomb holes are formed in the inner side of the flow guide groove, and one side, away from the magnetic column, of the sponge layer is fixedly connected with a rubber layer. According to the device, direct rigid contact between the limit switch and the valve body is avoided, friction and stress concentration to the valve body in the installation and debugging process of the limit switch are reduced, the risk that an anti-corrosion coating of the valve body is damaged and rusted is reduced, and the flatness of an installation base face is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a limit switch mounting bracket for valve monitoring. Background Technology

[0002] Limit switches for valve monitoring are key industrial devices used to detect the opening and closing status of valves. They are mainly used to monitor the end position of the valve's stroke and convert mechanical motion into electrical signals to feed back to the control system. Their core function is to ensure the accuracy and safety of valve operation and prevent equipment damage, media leakage or system failure caused by excessive valve opening or closing.

[0003] Limit switches for valve monitoring come in various forms, typically equipped with intuitive indicator lights and adjustable limit adjustment devices, facilitating on-site debugging and maintenance, and easily adapting to different types of valve actuators, enabling rapid integration into existing systems;

[0004] However, limit switches are usually directly fixed to the valve body shell with bolts. During installation and commissioning, repeated adjustments to the position of the limit switch will aggravate the frictional wear of the contact surface. The mechanical stress generated by the rigid contact is concentrated on the valve body, which will not only damage the anti-corrosion coating of the valve body and cause the risk of rust, but also reduce the flatness of the mounting base and affect the triggering accuracy of the limit switch stroke end signal. Therefore, a limit switch mounting bracket for valve monitoring is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a limit switch mounting bracket for valve monitoring, in order to solve the problem that limit switches are usually directly fixed to the valve body shell with bolts. During the installation and debugging process, repeated adjustment of the limit switch position will aggravate the friction loss of the contact surface. The mechanical stress generated by rigid contact is concentrated on the valve body, which will not only damage the anti-corrosion coating of the valve body and cause the risk of rust, but also reduce the flatness of the mounting base surface and affect the triggering accuracy of the limit switch stroke end signal.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A limit switch mounting bracket for valve monitoring includes an electric valve and a limit switch. A sheet-like bracket structure is bolted to the upper end of the electric valve and the lower end of the limit switch. The sheet-like bracket structure includes a support plate, a pressure column assembly slidably connected to the inner side of the support plate, a connecting layer assembly fixedly connected to the lower end of the support plate, and an anti-slip layer assembly adhesively fixed to the lower end of the connecting layer assembly. The pressure column assembly includes a magnetic column with a flow guide groove on its outer side, and a sponge layer fixedly connected to one end of the magnetic column. The inner side of the guide channel has honeycomb holes. A rubber layer is fixedly connected to the side of the sponge layer away from the magnetic column. The connecting layer assembly includes a steel plate. A sliding groove is formed on the inner side of the steel plate. A magnetic plate is slidably connected to the inner side of the sliding groove. A connecting column is fixedly connected to one side of the magnetic plate. A plug bead is fixedly connected to one end of the connecting column. The anti-slip layer assembly includes a rubber plate. A through hole is formed on the inner side of the rubber plate. Anti-slip rubber is bonded and fixed to the inner side of the through hole. A bowl-shaped hole is formed on the inner side of the rubber plate. An air hole is formed on the inner side of the rubber plate.

[0008] As a further optimization of this utility model, a portion of the pressure column assembly is exposed on the outside of the support plate, and several pressure column assemblies are provided. The multiple pressure column assemblies are evenly and equidistantly distributed in an S-shaped array, and the projections of the support plate and the connecting layer assembly in the vertical direction are exactly the same.

[0009] As a further optimization of this utility model, the following features are provided: a plurality of flow guide grooves are provided, and the plurality of flow guide grooves are evenly and equidistantly distributed in a ring array on the outer side of the magnetic column; the honeycomb holes are hexagonal prisms in shape, and a plurality of honeycomb holes are provided, and the plurality of honeycomb holes are evenly and equidistantly distributed in a ring array on the inner side of the sponge layer; the upper end of the rubber layer is attached to the bottom end of the limit switch.

[0010] As a further optimization of this utility model, the sliding groove is composed of a section of cylinder and a section of frustum, the depth of the sliding groove is four-fifths of the thickness of the steel plate, and the outer side of the magnetic plate is in close contact with the inner side of the sliding groove.

[0011] As a further optimization of this utility model, the magnetic plate and the magnetic column are magnetically repelled, the magnetic plate, the connecting column and the plug are on the same axis, the length of the connecting column is the same as the depth of the sliding groove, and the plug is exposed on the outside of the steel plate.

[0012] As a further optimization of this utility model, the following features are provided: two through holes are provided, the two through holes are symmetrically distributed, a portion of the anti-slip rubber is exposed on the outside of the through holes, and several notches are provided on the inner side of the anti-slip rubber.

[0013] As a further optimization of this utility model, the bottom end of the adhesive plate is attached to the upper end of the electric valve, the inner side of the bowl-shaped hole is arc-shaped, the bowl-shaped hole and the air hole are interconnected, and the position of the bowl-shaped hole corresponds one-to-one with the position of the pressure column assembly.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the device avoids direct rigid contact between the limit switch and the valve body through the set plate-shaped support structure, reduces friction and stress concentration on the valve body during the installation and debugging of the limit switch, reduces the risk of damage and corrosion of the valve body's anti-corrosion coating, ensures the flatness of the mounting base, and provides good buffering, enhances structural stability, and protects the limit switch and valve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the entire utility model;

[0018] Figure 3 This is a schematic diagram of the sheet-like support structure of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the sheet-like support structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the pressure column assembly structure of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the connecting layer assembly of this utility model;

[0022] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0023] Figure 8 This is a cross-sectional structural diagram of the anti-slip layer component of this utility model;

[0024] Figure 9 for Figure 8 Enlarged structural diagram at point B;

[0025] Figure 10 for Figure 8 Enlarged structural diagram at point C.

[0026] In the diagram: 1. Electric valve;

[0027] 2. Sheet-like support structure; 21. Support plate;

[0028] 22. Pressure column assembly; 221. Magnetic column; 222. Flow guide channel; 223. Sponge layer; 224. Honeycomb holes; 225. Rubber layer;

[0029] 23. Connecting layer assembly; 231. Steel plate; 232. Sliding groove; 233. Magnetic plate; 234. Connecting column; 235. Plug ball;

[0030] 24. Anti-slip layer assembly; 241. Rubber sheet; 242. Through hole; 243. Anti-slip rubber sheet; 244. Bowl-shaped hole; 245. Air hole;

[0031] 3. Limit switches. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Please see Figure 1-10 This utility model provides a technical solution:

[0035] A limit switch mounting bracket for valve monitoring includes an electric valve 1 and a limit switch 3. A sheet-like bracket structure 2 is bolted between the upper end of the electric valve 1 and the lower end of the limit switch 3. The sheet-like bracket structure 2 includes a support plate 21, a pressure column assembly 22 slidably connected to the inner side of the support plate 21, a connecting layer assembly 23 fixedly connected to the lower end of the support plate 21, and an anti-slip layer assembly 24 adhesively fixed to the lower end of the connecting layer assembly 23. The pressure column assembly 22 includes a magnetic column 221, a flow guide groove 222 formed on the outer side of the magnetic column 221, and a sponge layer 223 fixedly connected to one end of the magnetic column 221. Honeycomb holes are formed on the inner side of the flow guide groove 222. 224. A rubber layer 225 is fixedly connected to the side of the sponge layer 223 away from the magnetic post 221. The connecting layer assembly 23 includes a steel plate 231. A sliding groove 232 is opened on the inner side of the steel plate 231. A magnetic plate 233 is slidably connected to the inner side of the sliding groove 232. A connecting post 234 is fixedly connected to one side of the magnetic plate 233. A plug bead 235 is fixedly connected to one end of the connecting post 234. The anti-slip layer assembly 24 includes a rubber plate 241. A through hole 242 is opened on the inner side of the rubber plate 241. An anti-slip rubber 243 is bonded and fixed to the inner side of the through hole 242. A bowl-shaped hole 244 is opened on the inner side of the rubber plate 241. An air hole 245 is opened on the inner side of the rubber plate 241.

[0036] As a further implementation of this scheme, a portion of the pressure column assembly 22 is exposed on the outside of the support plate 21. Several pressure column assemblies 22 are provided, and the multiple pressure column assemblies 22 are evenly and equidistantly distributed in an S-shaped array. The projections of the support plate 21 and the connecting layer assembly 23 in the vertical direction are exactly the same. This layout enables the pressure column assembly 22 to have a more uniform and reasonable force distribution when it is in operation, thereby enhancing the stability of the overall structure. The support plate 21 and the connecting layer assembly 23 can form an organic whole, jointly bearing the load and resisting external forces, thus enhancing the load-bearing capacity and rigidity of the entire structure.

[0037] As a further implementation of this scheme, several flow channels 222 are provided, and multiple flow channels 222 are evenly and equidistantly distributed in a ring array on the outside of the magnetic column 221. The honeycomb holes 224 are hexagonal prisms in shape, and multiple honeycomb holes 224 are evenly and equidistantly distributed in a ring array on the inside of the sponge layer 223. The upper end of the rubber layer 225 is attached to the bottom end of the limit switch 3. The layout of the flow channels 222 is conducive to the flow of gas from around the magnetic column 221, and avoids the magnetic column 221 from collapsing due to the resistance generated by air compression when it penetrates into the support plate 21. The shape of the honeycomb holes 224 has high structural stability, which is conducive to improving the overall structural strength and durability of the sponge layer 223. It provides a certain buffering effect when the rubber layer 225 is squeezed by the limit switch 3, and allows the rubber layer 225 to have a certain deflection space, providing better support and anti-slip effect for the limit switch 3.

[0038] As a further implementation of this solution, the sliding groove 232 is composed of a cylindrical section and a frustum section. The depth of the sliding groove 232 is four-fifths of the thickness of the steel plate 231. The outer side of the magnetic plate 233 is in close contact with the inner side of the sliding groove 232. The magnetic plate 233 and the magnetic column 221 are magnetically repelled. The magnetic plate 233, the connecting column 234, and the plug ball 235 are on the same axis. The length of the connecting column 234 is the same as the depth of the sliding groove 232. The plug ball 235 is exposed on the outer side of the steel plate 231. The shape of the sliding groove 232 can prevent the magnetic plate 233 from sliding out of it. The design that the outer side of the magnetic plate 233 is in close contact with the inner side of the sliding groove 232 ensures the sliding stability of the magnetic plate 233 in the sliding groove 232. The magnetic repulsion between the magnetic plate 233 and the magnetic column 221 and the coaxial design of the magnetic plate 233, the connecting column 234, and the plug ball 235 enable the movement of the plug ball 235 by the movement of the magnetic column 221, realizing the mechanical linkage between the components.

[0039] As a further implementation of this solution, two through holes 242 are provided, and the two through holes 242 are symmetrically distributed. Part of the anti-slip rubber 243 is exposed on the outside of the through holes 242. Several notches are opened on the inside of the anti-slip rubber 243. 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 arc-shaped. The bowl-shaped hole 244 and the air hole 245 are interconnected. The position of the bowl-shaped hole 244 corresponds one-to-one with the position of the pressure column assembly 22. The arc-shaped setting of the inner side of the bowl-shaped hole 244 can avoid the phenomenon of poor adhesion or partial detachment of the bottom end of the rubber plate 241 due to uneven pressure.

[0040] Working process: When using the device, place the sheet-like support structure 2 on the electric valve 1, so that the bottom end of the rubber plate 241 is in contact with the top end of the electric valve 1, and the through hole 242 is aligned with the mounting hole opened at the top end of the electric valve 1, so that part of the anti-slip rubber 243 enters the mounting hole opened at the top end of the electric valve 1. Then, place the limit switch 3 on the upper surface of the support plate 21 and press it down. At this time, the pressure column assembly 22, which is slidably connected to the inner side of the support plate 21, is squeezed by the limit switch 3 and will move downward. The setting of multiple rubber layers 225 can prevent the limit switch 3 from moving downward. The sliding mechanism and the sponge layer 223 prevent the rubber layer 225 from directly compressing the magnetic post 221 and damaging it. The sponge layer 223 deforms under pressure, and the honeycomb holes 224 on its inner side allow it to effectively absorb and disperse impact energy, providing better cushioning performance. This also accelerates the recovery speed of the sponge layer 223 as it recovers its deformation. When the magnetic post 221 moves downwards, the magnetic repulsion generated by the magnetic post 221 on the magnetic plate 233 allows the magnetic plate 233 to be driven by the connecting post 234. The stopper 235 moves downwards, and the shape of the sliding groove 232 ensures that the magnetic plate 233 slides in the sliding groove 232 without falling off. The movement of the magnetic plate 233 causes the stopper 235 to expel the air in the vent 245 from the bowl-shaped hole 244. At this time, the electric valve 1, the plate bracket structure 2, and the limit switch 3 are fixed with bolts. The bolts will pass through the through hole 242 and puncture the anti-slip rubber 243. The anti-slip rubber 243 can increase the friction between the bolt and the inner wall of the mounting hole opened at the upper end of the electric valve 1, making the bolt less likely to wobble, and the anti-slip rubber 243 provides cushioning. It can prevent bolt thread breakage. When the bolt completely fixes the plate bracket structure 2 to the upper end of the electric valve 1, air cannot enter the bowl-shaped hole 244 from the outside. Negative pressure is also generated inside the bowl-shaped hole 244, which causes the rubber plate 241 to adhere to the electric valve 1. The friction between the plate bracket structure 2 and the upper end of the electric valve 1 is further increased. This makes the fixation between the limit switch 3 and the electric valve 1 through the plate bracket structure 2 more secure. Moreover, the plate bracket structure 2 provides a certain buffer for the limit switch 3 when it vibrates, and will not damage the outer shell of the electric valve 1.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limit switch mounting bracket for valve monitoring, comprising an electric valve (1) and a limit switch (3), characterized in that: The upper end of the electric valve (1) and the lower end of the limit switch (3) are fixedly connected by bolts to a plate-shaped bracket structure (2). The sheet-like support structure (2) includes a support plate (21), a pressure column assembly (22) is slidably connected to the inner side of the support plate (21), 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 bonded and fixed to the lower end of the connecting layer assembly (23). The pressure column assembly (22) includes a magnetic column (221), a flow guide groove (222) is provided on the outer side of the magnetic column (221), a sponge layer (223) is fixedly connected to one end of the magnetic column (221), a honeycomb hole (224) is provided on the inner side of the flow guide groove (222), and a rubber layer (225) is fixedly connected to the side of the sponge layer (223) away from the magnetic column (221). The connecting layer assembly (23) includes a steel plate (231), a sliding groove (232) is provided on the inner side of the steel plate (231), a magnetic plate (233) is slidably connected to the inner side of the sliding groove (232), a connecting post (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 post (234). The anti-slip layer assembly (24) includes a rubber sheet (241), a through hole (242) is provided on the inner side of the rubber sheet (241), an anti-slip rubber sheet (243) is bonded and fixed on the inner side of the through hole (242), a bowl-shaped hole (244) is provided on the inner side of the rubber sheet (241), and an air hole (245) is provided on the inner side of the rubber sheet (241).

2. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: Part of the pressure column assembly (22) is exposed on the outside of the support plate (21). There are several pressure column assemblies (22), and the multiple pressure column assemblies (22) are evenly and equally distributed in an S-shaped array. The projection of the support plate (21) and the connecting layer assembly (23) in the vertical direction is exactly the same.

3. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: The flow guide groove (222) is provided in a plurality of ways. The plurality of flow guide grooves (222) are evenly and equidistantly distributed in a ring array on the outside of the magnetic column (221). The honeycomb hole (224) is hexagonal prism in shape. The honeycomb hole (224) is provided in a plurality of ways. The plurality of honeycomb holes (224) are evenly and equidistantly distributed in a ring array on the inside of the sponge layer (223). The upper end of the rubber layer (225) is attached to the bottom end of the limit switch (3).

4. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: The sliding groove (232) is composed of a cylindrical section and a frustum section. The depth of the sliding groove (232) is four-fifths of the thickness of the steel plate (231). The outer side of the magnetic plate (233) is in close contact with the inner side of the sliding groove (232).

5. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: The magnetic plate (233) and the magnetic column (221) are magnetically repelled. The magnetic plate (233), the connecting column (234) and the plug (235) are on the same axis. The length of the connecting column (234) is the same as the depth of the sliding groove (232). The plug (235) is exposed on the outside of the steel plate (231).

6. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: There are two through holes (242), which are symmetrically distributed. Part of the anti-slip rubber (243) is exposed outside the through holes (242), and several notches are opened on the inner side of the anti-slip rubber (243).

7. The limit switch mounting bracket for valve monitoring according to claim 1, characterized in that: The bottom end of the adhesive plate (241) is attached to the upper end of the electric valve (1). The inner side of the bowl-shaped hole (244) is arc-shaped. The bowl-shaped hole (244) and the air hole (245) are interconnected. The position of the bowl-shaped hole (244) corresponds one-to-one with the position of the pressure column assembly (22).

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